Establish product quality standards in mind
1. The overall appearance is flat
2. Suitable sealing and welding fastness (select an appropriate temperature range according to the raw material properties of the product and the use of the packaging)
3. Dimensional requirements and tolerances (including the dimensions of products and seals)
4. How to discount the pattern before and after
5. Other locations where sealing, welding, tearing, round holes, air holes, and hand holes are required. The appearance of the product has no marks, no wrinkles, and smooth opening.
Special attention must be given to the requirements of the product customer as the production standard of the product. The customer has reasonable suggestions for the requirements of the product quality.
The machine must be partially transferred to the local computer, bottom seal, side seal, and unloading part; hot knife pressure, pressure roller, unloading tension, and photoelectric sensitivity
1. Unloading and dragging keep stable. The unloading swing roller cannot be too high or too low, and the dragging cannot be too loose or too tight. These conditions will cause the product to shake in the radial direction during the operation of the product, which will cause the front and back and the discharge color mark of the photoelectric eye to be inaccurate. Adjust the air pressure of front, rear and unloading pressure roller.
2. Proper temperature setting If the temperature is too high, the product will wrinkle and affect the tracking of the photoelectric. Choose the right temperature for different products (material properties, thickness and packaged product). The pressure gap of the hot knife should generally be about 1.5 mm, especially when the high-speed operation of the hot knife gap can not be too large, otherwise it will affect the stability of the drag. If the welding width is large and the gap cannot be reduced, the only solution is to reduce the feed ratio in the computer or increase the material drawing speed. This is a very effective method when the bag length is long and the bag length cannot reach the set bag length when double feeding is not used.
3. Adjust the product to run in the middle of the pressure roller. Adjust the balance between the left and right pressure rollers. Remove the garbage and dirt and edge material on the rubber roller in time to ensure that the left and right pressure rollers are consistent. This can avoid the situation that the dragging of the left and right swings is unstable due to the inadequate adjustment of the rubber roller air pressure and the unbalanced wear of the rubber roller caused by the long-term.
4.The abnormal sound of the product during the operation of the material first needs to eliminate the problem of the machine part, then you need to observe whether the sound produced after the acceleration will appear in: the hot knife is too low or the hot cloth is rolled too loose with plastic Mud pulling speed setting is low. The tension between the two rubber rollers is too small. Unloading tension is too high. Pulling the motor speed incorrectly will cause the motor load to mismatch with the speed of the host. At this moment, the load of the motor will also increase, and the inertia at the time of starting and stopping will bring a sound.
5. Let the material pass through the same horizontal line when there are no fluctuations. The height of the knife should be kept on the same straight line. The pressure of the bottom seal scalpel should be balanced. The height of the lower scalpel should be kept. Equal edge sealing of multiple lower hot scalpels with different height retention samples will cause the material to swing left and right and seal welding research degree will not have a great impact on the flatness of the bag.
6. Exhaust air in the material during operation. The residual air in the material will cause the overall deformation of the bag and affect the normal operation of the material. There will also be a certain sound. Appropriate compaction of the relevant bead is required. The side-sealing ironing cloth should not cause any resistance due to the adhesion between the material and the ironing knife.
7. The relationship between tension (press roller, unwinding) and photoelectric tracking is the length of the running is exactly the same as the jade roller. There is a great relationship between the tension of the unloading swing roller and the excessively small or tension will cause the bag to have a length that is unexpectedly long and unlucky. Especially when the machine is running at high speed, the requirement for photoelectric sensitivity needs to be increased or decreased according to specific conditions. If this adjustment is not effective, the temperature and tension floating rod compensation must be taken into account for the error caused by the length. Whether it is the length change caused by the previous process. Under normal circumstances, when the machine is running at high speed, it is necessary to increase the sensitivity of the photoelectric accumulation, that is, make it relatively fuzzy, so as not to stop due to the ordinary loss of tracking. In the double silver conference, you should pay attention to observe whether the front photoelectric or the rear photoelectric fails. The instability of the photoelectric before will only affect the cutting position of the bag and damage the sealing position and the length of the bag. The post-photoelectric loss only affects the position of the round hole at the bottom of the bag. Which part has a problem, the relevant pressure roller pressure tension and photoelectricity of that section should be adjusted accordingly.
8. The effect of temperature on the photoelectricity. The temperature of the hot knife is not working when the machine is working. When the machine is turned on again, the temperature will appear too high. Or trivial failure. It also causes the material to produce glass transition temperature when it is heavy. The plastic will cause pollution and affect the operation and quality.

9. Relation between speed and tension When the machine is running at high speed, it overcomes the external resistance and the tension of the discharge is relatively large. In the case of unsteady dragging, the discharge tension can be appropriately increased to ensure the stability of the photoelectricity. When the tension is small, the phenomenon of back-and-forth jitter and left-right drift of the material occurs during the operation. The roller tension is the pressure of the rubber roller. Its size can directly affect the accuracy of the photoelectric follow-up. Drink small bag length error and stability of sealing position.