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Views: 7 Author: Site Editor Publish Time: 2024-09-24 Origin: Site
Automatic Rapier Sampling Machine is comprised of control part (computerized control platform) and mechanical part (loom). Control part is controlled by PLC and working frequency controller, key parts of mechanical part including pneumatic element, electric element and stepping motor etc. are imported with original package, thus ensuring stability and reliability of equipment operation.
Gaiting length, shed shape and size of sample loom are proportionally contracted and enlarged with new type rapier loom to ensure that warp tension and extensibility of sample loom are in conformity with rapier loom, moreover, same adjustment mode of looming technical parameters as that of new type rapier loom is used in this sample loom, so quality of sample is controlled more precisely. Compared with traditional semi-automatic loom, this loom can improve sample efficiency; besides, it fully solves difference between sample and bulk order products and sample difficulty of fabric including multiple heald frame and double circulation etc. in the past.
The textile industry is evolving rapidly, with an increasing demand for high-quality fabrics and innovative designs. To meet these demands, the role of skilled operators in operating sample weaving machines has become more critical than ever. These machines allow designers to create prototypes quickly and efficiently, but their effectiveness largely depends on the proficiency of the operators. This guide will provide an overview of the necessity for skilled operators, a step-by-step process for operating sample weaving machines, maintenance tips, and troubleshooting common issues.
Overview of the Need for Skilled Operators in the Textile Industry
As the textile industry embraces new technologies and methodologies, the demand for skilled operators who can effectively manage sample weaving machines is growing. These machines require a nuanced understanding of weaving techniques and fabric types. Skilled operators not only enhance productivity but also ensure the quality and precision of the woven samples. In a competitive landscape, having proficient operators can significantly impact a company’s ability to innovate and respond to market trends.
Basic Operation of Sample Weaving Machines
Operating a sample weaving machine involves several key steps. Here’s a step-by-step guide on how to operate these machines effectively:
Preparation: Before beginning, familiarize yourself with the machine's components, including the warp beam, weft feeder, and control panel. Ensure that all necessary materials, such as yarn and fabric samples, are on hand.
Warping the Machine: Load the warp yarn onto the warp beam. Make sure to follow the correct tension guidelines to ensure uniformity. This process may involve threading the yarn through various guides and heddles.
Setting Up the Weft: Insert the weft yarn into the feeder or shuttle, depending on the machine type. Adjust the weft tension to suit the fabric being woven.
Adjusting Machine Settings: Access the control panel to input the desired settings, including speed, pattern, and weave type. Understanding the specific requirements for different fabrics is crucial at this stage.
Running a Test Sample: Before producing the final sample, run a test to ensure that everything is functioning correctly. This helps identify any adjustments needed in tension or pattern.
Production: Once satisfied with the test sample, proceed to weave the final product. Monitor the process closely to ensure consistent quality.
Key Settings and Adjustments for Different Fabrics
Different fabrics require specific settings for optimal results. For instance:
Cotton Fabrics: Generally, a moderate speed and tension work best for cotton. Adjust the weft feeder to accommodate the thickness of the yarn.
Silk Fabrics: For silk, lower speeds and higher tension are recommended to prevent damage to the delicate fibers.
Synthetic Fabrics: These often require varying settings based on the type of synthetic material used. Experiment with speeds and tensions to find the right balance.
Maintenance Tips
Regular maintenance is essential for prolonging the life of sample weaving machines. Here are some effective practices:
Daily Cleaning: Remove dust and debris from the machine after each use to prevent buildup that could affect performance.
Lubrication: Regularly lubricate moving parts as per the manufacturer’s guidelines. This helps reduce friction and wear.
Check Tensions: Periodically check the tensions of both warp and weft yarns to ensure they are within the recommended ranges.
Calibration: Regularly calibrate the machine settings to maintain accuracy and consistency in fabric production.
Troubleshooting Common Issues
Even the best operators may encounter problems from time to time. Here are some common issues and how to resolve them:
Simple maintenance
Common troubles
No | Troubles | Cause | Shooting method |
1 | Shed is not clear | 1.Position of heald frame is improper 2. Warp tension is too small 3. Rear beam is too high | 1. Adjust heald frame height 2. Increase warp tension 3. Lower down the rear beam |
2 | Individual heald frame can’t up | 1. Air valve is closed 2. Position of tie rod is changed 3. Magnetic valve or air cylinder is damaged | 1. Check whether the regulating valve of cylinder is opened 2. Shut off air resources, lift heald frame, slightly adjust tie rod. 3. Check whether the magnetic valve light of heald is on. |
3 | Speed of heald frame dropping is out of consistent | Heald frame speed is not proper | Conscientiously adjust lifting and droping speed of each heald frame till it is basically consistent. |
4 | Selvedge is not clear | Down speed of selvedge heald is slow | Increase down speed of selvedge heald |
5 | Forward and backward of rapier can’t reach certain position | 1. Foreign matter blocked 2. Magnetic switch of wefting cylinder is loose 3. Lubricating of rapier is not enough | 1. Remove foreign matters. 2. Adjust position of magnetic switch and tighten. 3. Fill proper lubricant in rapier. |
6 | Weft can’t enter into duck bill | 1. Selvedge position of left side is wrong 2. Position of weft selector is wrong 3. Height of duck bill is wrong | 1. Place the selvedge to the most left side of reed. 2. Proper lower down the height of weft selector. 3. Change height of duck bill. |
7 | No weft shearing signal, magnetic switch is not light on | 1. Magnetic switch of weft shearing is loose 2. Magnetic switch of weft shearing is damaged. | 1. Fix the magnetic switch on proper position 2. Replace new magnetic switch |
8 | Yarn has been entered into shed | Selvedge position of most right side is wrong | Move the right selvedge to right position |
9 | Both sides of sample have kink | 1. Hasn’t install selvedge 2. Elasticity of yarn is too big, number of selvedge is not enough | 1. Install regulated four group selvedge 2. Increase one or two group selvedge on right side proper position or backwards move magnetic switch of pick shearing properly |
10 | Selvedge can’t make shed | 1. Selvedge is not placed to rear porcelain eye 2. Installation of magnetic selvedge machine is wrong | 1. Install selvedge as per regulation 2. Check whether work of magnetic selvedge machine is normal. |
11 | Weft shearing is too early or late | Position of magnetic switch of pick shearing is wrong | Forwards or backwards adjust the position of magnetic switch properly |
12 | Weft insertion fail | Pick selector is too high | Downwards adjust position of pick selector |
13 | Pick density setting value of normal technology can’t be finished | 1. Beating-up force is not enough 2. Pulse of beating-up cylinder is not enough 3. Air pressure is not enough 4. Pick density coefficient is wrong | 1. Increase number of beating-up 2. Adjust shut-off valve of beating-up or replace air cylinder 3. Increase air pressure 4. Modify pick density coefficient |
14 | Beat duck bill | 1. Installation of duck bill is improper 2. Reed stretch out of reed holder | 1. Adjust position of duck bill 2. Install reed again, left side position can’t exceed reed holder |
15 | Reed moves | The reed is not fixed fasten | Fasten the reed fixing screws |
16 | Reed swing can’t reach proper position | 1. Foreign matter build up 2. Magnetic switch of beating-up cylinder is loose 3. Resistance of cross weave is too large | 1. Remove foreign matters 2. Adjust position of magnetic switch and tighten it 3. Set more times beating-up (if difference between pick density and technical requirement is small ) |
17 | Pick density is wrong | System parameter is wrong | Calculate and input system parameter again. |
18 | Take-up/let–off can’t move | Step motor controling has failure | Maintain or replace step motor |
19 | Taking-up forward continuously | 1. System parameter is zero 2. Pick density 1 or pick density 2 is zero | 1. Input new system parameter 2. Input pick density again |
20 | Pegging plan can’t open, or it is empty after opening, or software menu is large or excursion | 1. File has been damaged 2. Configuration of this machine is unmatched | 1. Set up a new file 2. Setting color is enhancement color (16 digit) , resolution ratio: 1024x768 |
21 | Warp tension is not stable | The warp ends has not fasten | Fasten the warp end s |
22 | The machine can’t stop in time when weft breaking | 1. Fly and dust are adhered to self stop conducting sheet 2. wire is open circuit | 1. Clean weft stop motion device 2. Connect wire again |
23 | Software can’t start correctly | 1 Partial file has been deleted 2. Computer has been infected with virus. | 1. Install software again 2. Clean virus |
24 | Illegal operation is occurred during operation of software | 1. Windows system file has been damaged 2. Computer has been infected with virus. | 1. Renovate Windows system file 2. Clean virus |
25 | Computer is dead during operation of software | 1. Install other software in computer 2. Computer has been infected with virus. | 1. Uninstall other software 2. Clean virus |
26 | Computer can’t start | 1. Windows system has been damaged 2. Computer failure | 1. Install Windows system again 2. Repair Computer |
27 | Can’t find file (Error no. 53) | File has been lost | Set up a “history” text file in C:\WINNT\system file folder |
28 | Can’t find path (Error no.76) | File has been deleted | Set up file again |
29 | Input exceed end-of-file (Error no. 62) | File has been damaged | Set up file again |
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