The operation steps and precautions of the high-speed jacquard machine are as follows:
1. Preparation before operation
Equipment inspection
Confirm that all components of the high-speed jacquard machine (such as the lifting mechanism, pattern control mechanism, and transmission mechanism) are intact, the lubrication system is normal, and the electrical circuit is safe.
Check whether key components such as vertical hooks, lifting knives, knife holders, flower tubes, pattern plates, and horizontal needles are securely installed without looseness or wear.
.Ensure that the pattern board is arranged correctly (such as arranging the positive and negative adjustment surfaces of single and double number pattern boards in sequence), and avoid errors in pattern organization.
Parameter Setting
According to the fabric design requirements, input weaving parameters (such as weft density, pattern cycle, shuttle height, opening time, etc.).
. Adjust the motion parameters of the tool box (such as travel and pause time) to meet the needs of high-speed weaving machines. For example, by adjusting the position of the connecting rod on the three arm lever, the forward and backward travel of the same tool box can be made different, forming a clear shuttle opening.Yarn Preparation
Install the main and auxiliary yarns to ensure that the yarns are unobstructed.
. When threading, follow the rules to prevent interlacing or knotting. Adjust the yarn tension to avoid weaving defects caused by uneven tension. Environment and SafetyKeep the work environment clean and avoid safety hazards caused by debris.
. Operators need to be familiar with the equipment operation process and stand in a safe position (such as away from moving parts).2. Startup and Operation
Slow Acceleration
When starting the high-speed jacquard machine, run it at low speed first, observe whether the weaving process is smooth, confirm that there are no abnormalities, and then gradually accelerate to the normal working speed (such as 250-400r/min).
. Monitor yarn tension, shuttle clarity, and pattern formation, and adjust parameters in a timely manner.Real time monitoring
Observe the weaving results through the display screen or monitoring system, focusing on issues such as yarn breakage, misalignment, and abnormal weft tension.
. If any abnormalities are found, immediately stop the machine for inspection to avoid wasting raw materials or affecting product quality.High speed adaptation technology
Multi action knife box: using two sets of knife boxes to alternately lift and lower, reducing the friction between warp yarn and warp yarn, and lowering the breakage rate.
.Elastic body recycling: Using spandex elastic bands instead of traditional heavy hammers to accelerate the descent of the recycling line and increase vehicle speed.
. Electronic control jacquard: By using a CAD workstation to convert pattern patterns into data, fast and accurate pattern control can be achieved.III. Maintenance
Regular Cleaning
Regularly clean equipment dust and yarn residue to prevent blockage or wear on components.
. Clean the flower tube, pattern board, horizontal needle and other components to ensure the sensitivity of the pattern control mechanism.Component replacement
Regularly inspect and replace worn parts (such as vertical hooks, lifting knives, wire harnesses, and lead weights) to maintain equipment accuracy.
. Lubricate transmission components (such as connecting rods and bearings) to reduce friction and noise.Safety Check
During maintenance, press the emergency stop button to cut off the power and prevent electric shock or mechanical injury.
. After moving the safety barrier, it should be restored in a timely manner to avoid dropping the tool during operation.IV. Troubleshooting
Common Problems
Broken yarn: Check the yarn tension and whether the yarn path is unobstructed, adjust the tension or clean the yarn knot.
.Wrong pattern: Check if the pattern layout is correct and re-enter the pattern parameters.
. Unclear opening: Adjust the shuttle height or opening time to ensure clear separation of warp yarns. Emergency StopIn case of equipment failure or safety accident, immediately press the emergency stop button and report to the maintenance personnel.
.After maintenance, when starting up, run the car slowly for more than 2 Wei, confirm that it is normal, and then accelerate.
.Fifth, Suggestions for Operation Optimization
Skill Enhancement
Regularly train operators to master the structural principles and debugging skills of high-speed jacquard machines.
. Learn new jacquard techniques (such as electronically controlled jacquard) to improve production efficiency and product quality.Process improvement
Select the appropriate jacquard pattern based on the fabric characteristics (such as warp threading, fly threading, and zone threading).
. Optimize the opening adjustment parameters (such as shuttle height and flower tube travel) to reduce warp friction and breakage.