Textile Finishing Machine -The loom fabric at the grey stage or after being over dyed in the soaper machine is fed in the finishing range. This is an integrated finishing range assembled by Morrison U.S.A. In denim fabrics there are some very important parameters that are to be see over here such as skewing and shrinkage which can otherwise adversely affect the after wash characteristics of the fabric at the garment stage . The sanforising unit provide the premeditated shrinkage and the fabric set amount after operations are brushing, singing and softening.
This stage is very first stage which the fabric is completely opened up i.e. prepared for the further finishing process with the help of roller and j-scray.
COLD WASH:
Cold bath is used to prewett the fabric properly.
Conclusion
Textile Finishing Machine – Fabric is passed through hot chamber for heat setting. This process is used to avoid shrinkage and elongation problem.
This In House Test Method of fabric coating machine which describes the method in which Auto Testing Services Limited carries out the testing in accordance with the above standards. This operating procedure has been written to complement the above standard and not to replace the standard in part or in full. The correct number of test specimens are to be prepared and tested as specified within this test method in order to achieve a performance assessment of the product/fabric as described within the scope.
Fabric Coating Machine Equipment
Roaches Hot Plate
Teflon Mask (see note 1 for preparation)
Calibrated Thermocouple
Standard Seaming Tape
Calibrated Timer
Calibrated Ruler
CRE Tensile Tester (Constant Rate of Extension)
Set of 4 Neoprene Jaw faces 75 x 25 mm
Conditioning
The test specimens of Fabric Coating Machine are to be conditioned in the standard atmosphere of 65% Relative Humidity (RH) +/- 2% and 20°C +/- 2°C for a minimum of 16 hours. All tests should also be carried out in this atmosphere.
Health & Safety
In all cases technicians must use appropriate safety equipment, goggles, gloves, machine guards. Prior to testing technicians must ensure hands are clean and dry. Unqualified staff must be supervised.
Preparation of Test Specimens/Materials
Check with individual Store Group Procedures for any deviations from this Standard.
Fabric should be in a fully relaxed state before commencing preparation.
At least 150mm away from the selvedge.
Mark out five samples 200 x 75 mm the longest direction parallel to the warp (length) of the fabric. No two samples should contain the same warp and weft threads.
Draw a line in the bottom corner to indicate the length direction.
Cut out the samples.
Cut off 5 samples of standard seaming tape 200mm long.
Switch on the Roaches Hot plate unit. Set the top plate only to heat up to 150°C 2°
When up to temperature check with calibrated thermocouple placing in the centre of the hot plate. If not correct adjust setting and re-check.
Thread tape through slot in Teflon mask.
Place on top of coated side of fabric.
Line up the tape position with the marker slot at the bottom of mask.
Place on a piece of card to ease transportation onto the hot plate.
Lower top plate and start calibrated timer for 30 seconds.
Remove from hot plate and allow to cool for at least 60 seconds.
Gently remove the mask taking care not to disturb the bond of tape to fabric.
Test Procedure ofFabric Coating Machine
If you are using the automatic control machine
Check with fabric coating machine operating instruction for setting up machine.
Select suitable load cell for fabric being tested (100N preferred).
Fit the jaws:-
Front – 75 x 25 mm (Neoprene faced)
Back – 75 x 25 mm (Neoprene faced)
Set safety stops in motion.
Set to S.I. units (Newton)
Adjust gauge length to 75mm, confirm using a calibrated ruler.
If you are using a manual control machine:-
Set fabric coating machine speed to 100 mm/min
Set chart recorder to 1:1 ratio.
Set extension cycling controls:- Minimum 0.0mm and Maximum 200 mm
Load range 100 N (this may need to be adjusted depending on the force required to separate the sample from the seaming tape).
Calibrate the machine without the sample in the jaws to the chart recorder.
If you are using software-controlled machines confirm machine setting are correct according to the above settings.
Log onto the computer or stamp the chart and record all the test and sample details.
Place the first sample in the jaw with the tape in the top jaw and the fabric in the bottom jaw with the fused section central between the top and bottom jaws.
Start the machine and continue until 100mm peel has occurred.
Note any samples where fabric coating breakdown occurs.
Repeat for the remaining 4 samples.
Test Procedure of Fabric Coating Machine
Assessment/Results of Tested Specimens
On completion of all the test samples:-
Computerised machine print of the results.
Manual machine, remove the chart paper and work out the results as follows:-
From each trace calculate the minimum peeling force to the nearest Newton and the median force, when doing this discount the initial peak.
Take the mean average for each set of 5 results.
Assessment Results of Tested Specimens
Reporting Of Results
Convert the final results to N/50mm width using the formula below:-
Force in Newton’s Seaming tape width in mm x 50 =x N/50mm width
Ensure all the results are fully completed on the worksheet including any deviations in the test method.
Fabric Coating Machine for Sale
High-efficiency Intelligent Fabric Coating Machine (service capacity ranging from 40kgs to 130kgs, with two options for process of either organic, aqueous film coating or sugar coating)
PLC control with Touch Screen.
Hot air inlet cabinet.
Air Exhaust cabinet.
Peristaltic pump for film coating.
Spray gun (three pieces).
Mixing drum with Steer.
Strong Electric cabinet.
Electricity: 380V, 50Hz, 3 phases.
Power consumption 40 KW or Steam.
Automatic dumping unit
All contact parts SS 316 L & non contact parts SS 304.
Three stage filter unit.
Air compressor & voltage stabilizer will provided by buyer.
Unit as above (without tax & vat)……………………..
We sale all types of fabric coating machine in Bangladesh.
Handheld metal detector, for broken needle fragments that are missing handheld detector will be used to scan the last bundle of work and items within a meter radius of the working place. All products must be scanned on a metal free workplace. The handheld detector is kept in the Production office.It is recommended to use a partition for metal detection or set a metal detection zone that clearly identifies metal checked and non-checked stock.
Needle procedure under the Metal Free policies
Purpose: To ensure all areas of Hop Lun BD operations, are managed through ”policies, procedures and audits with reference to “Metal Free- Tools and Sharps control. Needle procedure under the Metal Free policies
Scope: The work instruction applies to all production areas where sharps, best handheld metal detector and tools are used.
Work instruction
Materials: Colour coded Needle transfer sage box. The box will hold a pre-determined number of needles per machine type and class (catalogue type and size). The identification of the machinery type is colour coded:
RED & YELLOW = Lockstitch & Twin Needle
BLUE & WHITE = Over lock & Cover stitch
GREEN & GREY = Button sew/Bar tack/Pattern tack
Hand tag needles
Metal NeedleDetector
We do not destroy recycle or sale our broken needles button hole knives old cutting blades and non-conforming goods before one year, It means we preserved all of the above things for one year.
Every financial year our product safety manager invite all of our honorable buyer or their representative to watch destroying / burning /recycling the broken needles, utility button hole knives, old cutting blades and non-conforming
They make a team who collect all broken needles, utility buttonhole knives, old cutting blades and non-conforming goods and take snaps before & after burn.
They make a resolution to witness for future records.
Instruction of Metal detection
Before packing all garments lot through detector, check the calibration of the detector. If passes pack the garments.
The garment lot checked should not be moved into the packing area, the checked lot to be kept in the HOLDING . AREA. After hourly check completed, The metal detector needs to be re-checked for calibration. If calibration test passes, then send the lot for packing. If calibration check fails, rectify the detectors problem and re-check the lot through metal detector those which are kept in the HOLDING AREA.
Use of Metal Detectors
Providing buyer customers with safe products is the paramount concern of our company. One of the most important ways we can protect our customers is to make sure there is no contamination in our products from such items as broken needles, pins, trimming shears etc etc. Having proper procedures in any garment factories is one way we protect our goods from possible metal contamination. A second VITAL method is the use of metal detectors, and that is what this memorandum is about.
There are sometimes instances of metal contamination being found during an AQL inspection in our warehouse. Even though one piece only may be found, because metal contamination is a ‘CRITICAL’ fault, buyers have to go to 100% inspection. In our warehouse in bangladesh this means sending the 100% of the goods through our Metal Detectors. Buyers have had some cases lately where it has not been possible to put the garments through the metal detectors, because
Note: if a ferrous trim is coated to the extent that it does not trigger a metal detector, it is possible it may be allowed, but it is much safer to use non-ferrous materials even for coated articles). It is realized that there may be some cases where this non-ferrous requirement may not be possible to instigate without causing a delay to the delivery. Therefore it is decided that
for goods already in production, and for goods where the trims are already in manufacture, we will allow suppliers to proceed without changing the accessories. However suppliers MUST inform the appropriate Tema Merchandiser or Buyer if they are making any products which contain ferrous material. There are changes being made in Buyer Operating Procedures which will detail the changes to be made, but here are some main points for all suppliers to take into account:
For all orders placed from now on, suppliers MUST make sure that no ferrous materials are used in trims and accessories such as buttons, belts, logos, studs, poppers, or similar accessories etc
The ‘detection level’ to which metal detectors should be set is 1.2mm. To allow a safety factor, Tema products must not exceed 1.0mm. Our Fabric and Trims Handbook will be modified to reflect this
Our AQL procedures will be modified to make sure part of the inspected quantity will be put through the factory’s metal detector to make sure the trims do not trigger the alarm
We will issue enhanced inspection instructions to be followed in the case of goods for which it has not been possible to use a metal detector after production
A document will be issued from our Garment Technology Directorate which will detail exactly which materials may be used instead of ferrous products For example, aluminium may be an alternative. Our Accessories and Trims Coordinator will be contacting our accredited trims suppliers to reinforce these instructions
Policy of Handheld Metal Detector
All garments and footwear manufactured for buyer must be metal detected. Buyer preferred method of application is a conveyor tunnel type detector, capable of detecting metal fragments to a sensitivity level of 1.2mm diameter ferrous standard
Policy of Handheld Metal Detector
Companies which manufacture products for Tema must have metal detectors. All products in all product groups must be 100% checked with best handheld metal detector and made ready for shipment.
Metal detection should not be seen as an alternative to Broken Needle Policy but support it.
Metal detectors must be kept clean in good working condition in accordance with the manufacturer’s instructions, and serviced regularly. Service records should be kept for inspection by Tema auditors.
The sensitivity level of the metal detector must be checked 3 times a day with a suitable test pack that contains a 1.2mm diameter ferrous test card. These calibrations should be recorded on a Daily Calibration Sheet that should be available for Tema auditors. It is recommended to do 9 point calibration checks to be certain about the sensivity of the machine at three height of the aperture.
Only the nominated personnel can adjust the machine sensitivity.
In the event that the best handheld metal detector is found not functioning properly, the Department Supervisor must be informed immediately and the handheld metal detector must be withdrawn from use until the relevant service company is notified and the repair is complete after a recalibration and a full function check.
Number of products passed through recorded daily. It is advisable to put check stickers (e.g. am or pm) onto the polybags, to identify the time period the stock was checked, in the event of failure.
If a product fails the test, the operator must remove and isolate it from other products on the conveyor. The Department Supervisor will investigate the product. If the contamination is found, it should be recorded in the Metal Detected Stock Sheet. If the contamination is not found, the product needs to be put into a sealed locked container labeled Contaminated Stock.
In order for stone fragments in stone-washed or sand-washed denim products not to mislead the detectors, detection is conducted before washing and metal accessory attachment. Manual best handheld metal detector should be used after washing in order to check any jackron labels that may have been attached after washing and the parts which may have been repaired.
Dr. Kety Hoss, Lecturer, Department of Textile Technology, University of Hong Kong
Shot blasting machine is special equipment designed and produced for individual customer. It is a machine for cleaning structure steel. It strongly blast the original condition steel parts to remove surface rust, welding slag and scale, making it show uniform metal color and improve coating quality and corrosion prevention effect. The equipment is mainly composed of former auxiliary chamber, shot blasting machine, roller conveyor mechanism projectile cycle apparatus, maintenance platforms, dust removal system and electrical control system components.
Shot blasting machine Design
The main design idea:
Based on experience, we use roller shot blasting machine. The models are available from the truck or driving feed rollers directly, can work, high efficiency, operational safety of workers. But also take into account the surface cleaning and steel profiles and structural parts.
For customers work information, we designed an opening device width, height 1700mm. 1520mm diameter steel pipe feeding a time. Projectile body to ensure overall coverage.
In the sealing chamber at both ends of the installation of equipment wear-resistant steel sheet clip to prevent projectiles spill. To ensure that the work site without projectile.
roller spacing device designed to 1000mm, to ensure the carrying capacity of 1T / m. And the installation of the spacer rollers to prevent rolling steel pipe rollers to ensure security.
6 sets with 11kw motor direct-attached blasting device, the device is turned on, placed in a steel rollers to 1.2-1.6m /min speed through the blasting zone. When steel hanging out roller can be tilted through pipe, steel pipe dumping projectile to collect balls spiral, which will help the projectile recovered.
Shotblasting main advantage：
Company department completely using three-dimensional design for shotblasting, to avoid any defects and omissions in the design.
Product design, each year more than hundreds of sets of roller cover shotblasting machinery manufacturing industry fields.
Main designers as head of the entire project is responsible for the design of the product quality, production process, delivery,installation and after-sales service, etc., to provide clients with integrated one-stop service.
Technical Support for Shotblasting Machine：
The position of shotblasting wheels arranged on blasting cabinet is confirmed by a 3D blast simulation system.
Every non-standard machine drawing is documented to convenient maintenance of shotblasting mc.
All blast wheels are tested 60 minutes on load condition to assure quality.
Direct blast wheel with high efficient and high speed is used to improve cleaning effect.
Durable material.
It adopt pneumatic system to avoid hurting people and abrasive waste.
Cabinet adopt SPMn13 protective plates, working life up to 13000 hours. Wear resistant and convenient for replacing.
Safety interlocks ensuring worker’s safety.
Sub-control rooms distributed in front and end. Sealed rubber plate stops overflow of
Environmental cartridge dust collector ensuring the efficiency up to 99.5%
High quality of imported electric appliances, Guarantee the quality of equipment for shotblasting mc.
Shotblasting Machine Maintenance :
Machine Safety
a). All transmission parts have cover and safety warning sign.
b).In operation position and its opposite position, there are emergency stop buttons.
c).Safety interlocks for abrasive feed, blasting and maintenance area.
Sealing problem, dust extraction position
We design multi layers of labyrinth sealing. Near the door, on top of cabinet, there are dust
extraction port which will suck dust away easily.
Anti-run back device of bucket elevator
In order to prevent bucket elevator run back in case of sudden stop or power failure,
causing damage to the machine, the bucket elevator has anti-run back mechanism. Housing of
bucket elevator also has protective liner.
Environment protection problem
In order to prevent tiny abrasive sucked into dust collector, we design an abrasive settlement cabinet to settle down abrasive with size of 0.05mm. We design two steps dust remove, finally dust concentration of exhausted air will be controlled under 85 mg.
Material used on Shot Blasting Machine
Shot Blasting Machine chamber uses 8mm thickness steel plates, and the protection liner for direct
blasted area is 10mm thickness SPMn13 steel tiles.
Front and back chamber uses 5mm thickness steel plates, near blast chamber area, we
install 65Mn steel plate for protective purpose.
Bucket elevator and separator use 4mm thickness steel plates.
Roller use diameter 121mm seamless steel pipe, thickness 6mm.
Metal ducting for dust collector,2mm thickness steel plates.
PL frequency inverter is Mitsubishi or Omron, other electric components use CHINT or
Each part structure of Shot Blasting Machine
Shot Blasting Machine roller conveyor shot blasting machine is composed of shot blasting chamber , attaching shot blasting chamber , blast wheel assembly , abrasive recycle system ,dust removal system and electrical control components .
Each part structure
Roller conveyor system: The roller conveyor system includes inlet ,blast chamber roller and outlet roller. Each section of roller use frequency changing motor to drive
The inlet and outlet roller all use high quality seamless steel tube and shaft head welded together. The roller is machined after welding to keep enough load capacity and co axis.
The roller shaft is welded by high quality carbon steel seamless steel pipe and hardening and tempering spindle head .outline and installing dimensions are processed after welded , to ensure the bearing , and concentricity .
Shot blasting chamber indoor is tested by computer dynamic simulation ,completely avoid the blast wheel direct throwing and abrasive secondary bounce hit , although the rollers are equipped with easily changeable wear-resisting sheath .
Automatic control all rollers, frequency speed changing. Manual control for each section of
rollers separately for adjusting and maintenance.
Inlet roller and outlet roller is driven independently, frequency speed changing
Front and back chamber: Attaching shot blasting chambers are steel plate and structural steel welding structure . They together with the cleaning chamber form lenient workpiece cleaning space .attaching chamber internalwall (close to the shot blasting chamber) adopts wear-resisting rubber sheet to protect , all guard plates can be changed easily and conveniently .
Front and back chamber
Inside the front and behind sealing chamber has multichannel sealing curtain , form maze sealing structure , which is convenient to replace and repair . The device is sealed tightly ; since the dust collector exhaust fan , inside the chamber form a certain negative pressure , no dust escape .
Principle projectile of Shot Blasting Machine :
The arrangement of blast wheel is simulated by computer. There are 6 blast wheels on both upper and bottom of the cabinet to give through blasting of work pieces. Blast wheels adopt transverse blasting theory. The blasting direction formed a 90 degree angle with steel plate marching direction. Axial direction and work piece formed a proper angle to get a perfect blasting effect and avoid abrasive accumulating on the surface of steel plate.
Feature of Shot Blasting Machine：
It is the welding structure of the steel plate and structural steel , which has sufficient
strength and rigidity . chamber body shape , size and blast wheel installation location are confirmed through the 3D optimization and dynamic simulation , to unsure the workpiece cleaning effect , and maximize the efficiency of the equipment . Cleaning chamber uses 10mm thick SPMn13 , which has good wear resistance and durable service . the guard plate hold-down nuts are made of high chromium cast . The bottom of the inside chamber is equipped with grating , the main throwing area upper the grating is equipped with high chromium special wear-resisting cast iron plates with holes , avoid the abrasive destroy grating , hopper and the lower screw conveyor , which has a long lifetime .
Blast wheel base and the wall adopts locating pin and hole bolt to fix . And between the blast wheel and chamber uses high-quality shock-reducing rubber pad . SPMn13 plate（thickness 10mm） high manganese steel is the best choice in the field of against the strong impact , high pressure material wear ,under the action of large impact or greater contact stress , high manganese steel plate surface produce the work hardening ,surface hardness raises from HB200 to HB500 rapidly , which can produce the high wear-resistant surface layer , and the inner layer of the steel plate austenite still maintain the good impact toughness. High manganese steel plate has two biggest characteristic : First , the larger the outside impact , the higher its own surface wear-resistance ; second is along with the wear of the surface hardening layer , the new producing hardening will continuously form . In recent years , with the rapid development of the modern industry and science , high manganese steel has become the first choice of wear-resistant material for the maglev train , drilling robot , new tanks and other advanced equipment .Many new materials and modern surface engineering technology can not compared with high manganese steel on the cost and efficiency .
Blast wheel: The equipment is mainly composed of abrasive ,belt pulleys , bearing ,motor etc. This machine is a total of six sets of shot blasting machines, using my company’s high-efficiency blast wheel. The shot blasting machine is completely manufactured by our company. Each shot blasting related artifacts to run at an angle, ensure the workpiece is to conduct a comprehensive clean-up shot blasting, and to cover all the work on the basis of need to clean up, to minimize the empty projectile throwing, to maximize the projectile utilization, reduce clean up indoor wear protective plate
Blast wheel
Shot Blasting Process:
As shown, double disc riveted together, constitute the impeller body., equipped with eight leaves on the impeller impeller body and points with maru “located in the center of the blast wheel installed on the driven by motor spindle. Hood is lined with a guard board, directional set mounted on the casing and into the tube. At work, projectile by tube into the shot. With synchronous rotating blades for points maru “makes the projectile velocity.Projectile by directional flying out of the window, set to the orientation on the outside of the high-speed rotating blade, is leaf further accelerated, the projectile to clean up on the surface of work piece. Because points round pill and synchronous rotating blades ensures the projectile to the blade of no vibration, thus reduced the wear and tear of the blade.
Shot blasting process Feature:
High efficiency: special impeller structure, blasting efficiency reaches 16-19 kg/min•kw.
Protective liner and sealing: the top cover has cast iron and wearable rubber two layers
protection and sealing.
Low noise：blast wheel bottom has cushioning rubber, which can reduce vibration.
Runner wheel uses 40 Cr material carburized and quenched. After processed, the
runner need to be under balance detection.
To keep precision and good balance when it rotate in high speed, all key machining
parts are done by CNC center.
Eight blades are very easy to remove, only need 5 to 10 minutes to replace 8 pieces of
At the same time, you can also check the abrasion status of impeller and control
Material of blades, control cage, impeller is high chrome alloy, which has long service life.
The weight difference each piece of blade is less than 8 grams, which keeps the wheel have
good balance performance.
It uses two dish impeller wheel, compact and high throw ability.
Adjust the projectile area
New blasting prior to use must be adjusted correctly oriented sets window position, so as much as possible projectile thrown projectile to clean up the surface of the workpiece is to ensure that the cleaning effect, reducing the interior walls of the clean-up of wear parts wear
Abrasive recycling purifying system: Abrasives circulation purification system by the circulatory system and separation purification system, the two parts divided into pill hopper, tube slide pill, projectile controller (shot blasting,) screw conveyor, bucket elevator, separator, and shot supplements and so on. Projectile controller of the system, screw conveyor, bucket elevator and pill sand separator settings in the electronic control system interlock: After the process does not work, before the process cannot run, thus avoiding clogging occurs due to projectile equipment failure.
Screw conveyor
Screw conveyor is made by the cycloid reducer, helical axis, transmission cover, bearings and other components. It is a standard pill sand horizontal conveyor equipment, shot blasting machine is an important part of the circulatory system of the projectile. Screw conveyor for my company serialization component, versatility, interchangeability, stable and reliable performance. Working to ensure that the entire screw shaft concentricity after welding.
Roller conveyor system
This part uses helical blades 16Mn material, both inside and outside circles being processed by a special process stretching, pitch, outer dimensions are very precise, improve the service life.
Bucket elevator:
Bucket elevator is composed of cycloidal pin gear speed reducer, upper and lower barrel, transported rubber belt, hopper, enclosed barrel, and expanding device etc The elevator is adopted bend welding structure. Maintenance gate is equipment to convenient hopper replace and maintenance. The front door and side door under the lower shell have installed movable door, to easy for the repair of lower transport device, clean the clocked abrasives.
Bucket elevator
The abrasive dropped to the separator at the force of gravity In the process of working, the hopper in the transport belt brings the abrasives from the bottom, and drop at the gravity. Using polyester transport belt, squirrel cage roller, intermediate slightly protruding, which not only improves the lifting friction between the belt and pulley, avoiding the old light pulley slippage, but also reduces the lifting belt pretension force, extending the life of lifting tape. And can prevent the projectile stuck in between the lower pulley and the belt so the belt deviation phenomenon, flowing from the projectile between the spokes and the belt. Bottom shaft on the lifting having pulse wheel, can detect the tracking work status. Hoist not turn once or slippage failure, timely feedback signals to the PLC process alarms to ensure the safe operation of the equipment.
Abrasive separator
Using advanced three full curtain overflow induction weight automatic adjustment type separator,introduction of Swiss GF + DISA technology .
Abrasive separator
Working principle of Shot Blasting Machine
Abrasive mixture lifting to the drum sieve by bucket elevator,drum sieve inside and outside has spiral blades.Inside sprial blade making the large pieces discharge;abrasive,sand and dust mixture after sieved then push by outside sprial blade,then form a flow curtain,by adjusting the weight position,so abrasive can be fully separated.
Applicable scope of Shot Blasting Machine
The best separation projectile diameter from φ0.7 ~ φ1.5, the separation efficiency of 99.5% or higher.
Abrasive distribution system
The company patent technology of pneumatic projectile gate, relying on the cylinder to remote control blasting quantity. It can prevent motor burn out due to common controller closed lax, shot blocked, the projectile empty and hurtful phenomenon.
Abrasive distribution system
Dedusting system：
JD series of high rapping bag filter is my company absorbing foreign advanced technology,design and manufacture a new generation of highly efficient filter. Mainly used for large-scaleworkshop, shot blasting equipment, environmental dust. The effect of dust: dust emissionconcentration is less than equal to 95mg / m3, well below the JB / T8355-96 andGB16297-1996 “air pollutant discharge standards”.
Dusting method：Dusting collector use economical and practical test for the prolonged rappingbag-type dust collector, the filter has a low wind speed, high filtration precision, good cleaningeffect and so on.
We use the most advanced and reasonable secondary dust removal mode and unique and effective structure:
First step: abrasive settlement cabinet located on top of the machine, connected with air washseparator. This step is to solve the problem that the pipe may accumulate abrasive.
Second step: most effective & economic cartridge type pulse blow dust collector. It has features as low filtering air velocity, high filtering precision and good dust cleaning.
Filter shell made of welded steel plate processing, access door seal to ensure the dust gas to purify the air chamber, the filter body is composed of a single filter bag and support.The system
including the settling chamber, the blower, fan and fan pipe, dust collector and the connection between the host pipe, etc.Reach more than 95% dust removal efficiency, emissions acuities were 80 mg/m3, accord with GBJ4-73 industrial “three wastes” emissions standards, the main fan power 22 kw, dust bag adopts special needle felt filter material sewing, bag can be easily removed for cleaning and using.
Electric system for Shot Blasting Machine
All use the Japanese Mitsubishi PLC control, Omron or manual and automatic operation can be realized
Conveyor speed is controlled by inverter, can stepless speed regulation.
The entry of the production line, shot blasting room access door and other important parts, are equipped with safety interlock switch device. Chamber blasting of underground foundation pit is also equipped with lamp power socket, easy access lighting.
Using ammeter displays current of shot blasting machine;
This system to realize centralized control of shot blasting cleaning machine. The system can be based on user require the use of the programmable controller (PLC) as the core
This system main power supply adopts 3 ~ 380 v ac power, control circuit adopts single-phase 220 v ac power, to control transformer will be 380 v voltage drop is 220 v to the control circuit after use;
The system has a relatively complete fault alarm function, help operators or maintenance personnel to quickly find the fault point, reduce downtime, improve working efficiency.
Electrical and electronic control cabinet design, production in line with international electrical specifications and safety standards.
Circulatory system of the whole equipment, including hoisting machine, separator, automatic detection device for the spiral conveyor and so on, when some seams or jammed,
can automatically alarm and inform the fault parts, can make the maintenance personnel to repair.
It not only can be single move, can according to the chosen way of strengthening any open one shot blasting machine.
Sanforizing Machine is the last stage of woven fabric processing. This stage is called mechanical shrinkage. In this stage fabric shrinkage is controlled by means of mechanical application & using steam. The shrinking process takes place between the rubber belt and the heated shrinking cylinder. The pressure roll presses the rubber belt against the heated shrinking cylinder and the rubber belt is thereby stretched. Leaving this nip point, the pressure is relieved and the rubber belt contracts. The fabric between the rubber belt and the heated shrinking cylinder has to follow this contraction of the belt and thereby shrunk. Changing the rubber belt pressure changing result in the fabric shrinkage. The higher the pressure, the greater the shrinkage will be. In ATL Finishing there are two Sanforizing Machine. Machine details are given below
Specification of Monforts Sanforizing Machine
M/C Name: N
Origin: Germany
Pressure in Blanket = 2 – 3 bar
Speed for coarse fabric = 30 – 50 m/min
Speed for thin fabric = 60 – 70 m/min
Nominal width = 180 – 260 cm
Mechanical speed = 5 – 100 m/min
Sketch Diagram of Sanforizing Machine
Sketch Diagram of Sanforizing Machine
Flow diagram of Sanforizing Machine
Fabric inlet
↓
Guide roller
↓
Damping roller
↓
Water Spray
↓
Rubber belt
↓
Steam Cylinder
↓
Blanket steam drum
↓
Cooling cylinder
↓
Batcher
Operational Procedure of Sanforizing Machine
Fabric inlet of Sanforizing Machine: fabric passes over some free roller & guider then over the steam heated roller. In the steam heated roller the fabric is wetted a little bit.
Rubber belt shrinkage unit: The function of the machine is mainly controlled in this section. Here there is a rubber belt which is pressed by a steam heated stainless steel roller. This rubber belt is continuously cooled by passing water. When the fabric goes through the nip point of roller & blanket then the fabric goes to shrink. The amount of shrinkage depends on amount of pressure applied.
Drying cylinder: After shrinkage fabric goes through drying cylinder for drying.Here cylinder is heated by means of steam
Cooling cylinder: After drying the fabric is passed over cooling roller for lowering temperature.
Folder & batch winder: Finally the fabric pass over the folded roller to collect on fabric storage bench or it will roll on batcher. Then its go for final inspection.
Conclusion
In Auto different kinds of finishing m/c r available such as Stenter machine, Monforts Sanforizing machine, Emerizing m/c, Calendering m/c. By useing these m/cs here water proofing, flame proofing,rot proofing, attractiveness, service ability,fastness properties r increased..
Dr. William Jons, Textile Technologist, Osaka Textile Division, Germany
Peach finish machine is the process where the peach fabric becomes smoother. By this process especially for twill fabric the diagonal line become lowered with the application of microsand paper or carbon wire brushing. In Auto TL there is one peach finish machine. The machine description is given below.
Peach Finish Machine Specification
M/C Name: Lafer (SPA)
Drum speed: 90 m/min
No of r/r: 24 (Positive- 12, Negative- 12)
Speed: 20m/min (light peach)
Belt Pressure: 2.6 bar
Drum Pressure: 9 bar
Types of Peach Finish
There are 3 types of peach finish
Light
Medium
Heavy
Objective of Peach Finish
Wide range of brushing effects which can be replicated through time.
Completely defect-free fabric processing.
Flexible drawing-in in the various right-back side combinations.
Fabric inlet of Peach Finish Machine:Mercerized fabric is feed in the inlet section of the peach finish machine. Here the fabric is passed over some roller & guider to feed into the brushing zone.
Fabric inlet
Brushing unit of Peach Finish Machine: It contain 2 to 6 roller according to design. For microsand brushing each roller contains 24 rollers which move forward & backward with the same speed of containing roller. In carbon wire type machine all the roller contain carbon wire which performed brushing. The entire roller can control individually. Here belt pressure is 2.6 bar & drum pressure is 9 bar, which depend on quality of fabric.
Fabric outlet & batching: After that the fabric become smooth this is rolled on batcher for washing.
Control Panel of Peach Finish Machine: From control panel all types of instruction can be provide to the machinery. This machine has a full manual control panel. The operator controls every process by control switch.
Control Panel of Peach Finish Machine
Peach Fabric Lay in Section
Process Definition:The Process of receiving accurate amount of Gray Fabric from the Peach fabric Store & pilling them on a pallet to transfer to the next operation is called Lay-in.
Process Requirement: Equipment Used – Seizer , Key Accessories – Forklift, Wooden Plate, Measuring Tape, Sewing machine, Calculator etc are used for Lay-in. Material & Chemicals Used – Mask, Cap etc
Safety: Smoking is strictly prohibited in the factory premises.
According to the “Fabric layout Instruction” sheet producing personnel receives the specified quantity of fabric from the stores personnel.
Production personnel ensure that fabric is piled “Face to Face” on the process fabric lay-out Inspection sheet & then this pallet of fabric is transferred to the preparation department.
Product Quality Check:
Fabric Width
Fabric Construction
Sticker
Quantity
Fabric Face/Back
Sample Test: Fabric Width, EPI, PPI, shade Qty, construction, tensile strength, tear strength (weft), GSM, Face/Back, Wash Fastness, Lycra Properties etc Q.C. sample test are applicable for lay-in process.
Response to Equipment faults: If the lay-in is in face to back position, the lay-in person should take corrective actions.
M/C area cleaning: Must be mud, oil, grease free.
Forms & Documents Used:
Fabric lay out instruction sheet for Y/D.
Fabric lay out instruction sheet for Solid Dyed normal Order
Process Route card:
In route card every process has been men timed from peach fabric to finish inspection.
In route card two extra requirements are needed.
color: Red, lemon, orange, etc.
GLM: Gram per linear meter.
from peach fabric to finish inspection. In
Production Report
Peach Check report (Point Wise)
Sticker Khata
Document Flow: The Planning department fills the fabric lay-out instruction sheet (From No). the planning Department raises for both yarn & solid Dyed fabric & sends to the Lay-in. the issue quantity is mentioned only in case of solid dyed fabric. But in case of yarn dyed fabric, the lay-in personnel collects the fabric from the store according to the Weaving fault ( tangle warp, miss pick, stop mark, fungus spot, oil spot), selvedge condition, piece to piece width, construction & lot number as mentioned on the fabric lay-in instruction sheet & then starts the lay-in process.
Attachments: The following forms are used in the lay-in process
Peach quality control check: Here peach fabrics are checked by the operational techniques and activities that are used to fulfill requirements for quality.
The things which are checked here are given below:
tear and tensile
GLM × 100 (cm)
G.S.M (G.S.M= )
Width
Or, G.S.M =GLM/1.6
Shade per quantity
Listing check
Selvedge check
Weaving Check
Line mark
Lycra problem
Neps problem
PPI, EPI and width check.
Note : Finished EPI, PPI are less than the peach fabric.
Dr. William Jons, Textile Technologist, Osaka Textile Division, Germany
