Common maintenance of bag making machine
Date:2022-06-18 Click:1781
1. Bag making machine:
1. What is the reason for the continuous cold cutting of the flat mouth machine?
① The knife is not good and needs to be re-sharpened.
② The knife slide block is worn for a long time and there is a gap, which causes the knife to be unbalanced. Need to adjust the balance of the upper and lower knives.
2. If the flat-mouth machine cuts three or more strips, what is the reason for the size of the bag?
① Put a layer on the rubber roller behind the thin film. This can be balanced with other materials.
3. What is the reason for the spring of the flat-mouth machine to break?
The self-adhesive strip is not stuck in place and rolled up and rolled into the spring, then the spring will be broken, and the self-adhesive strip must be glued well in operation. The second reason is that the material is not neat or a lump is stuffed into the rubber roller, causing the spring to break off smoothly.
4. What is the reason why the edge of the bone bag making machine is beautiful and not beautiful?
The aluminum pressing roller needs to be adjusted so that both sides of the sealing edge can be pressed, otherwise the above situation will occur.
5. What is the reason why the self-adhesive strips cut by the side sealer often stick to the conveyor belt?
The self-adhesive strip is misplaced and stuck to the conveyor belt. It is necessary to debug the self-adhesive position of the following edge correction machine, and the edge-correcting electric eye must be placed in the self-adhesive position for edge correction. Prevent movement.
6. What is the reason for the burrs on the cutting edge of the OPP or the rotten edges of the explosion-proof edge?
The hot knife and the suction arm are not adjusted properly. The normal situation is that the hot knife is cut down to 2 cm and the suction arm is sent out.
7. What is the reason for the different lengths of the finished products cut by the side sealer?
The pressure spring is not pressed, causing the rubber roller to slip, or the clamping plate behind is too tight. Need to debug to fit.
8. What is the reason for the blockage of the flat machine in front of the cold cutter?
The bag is too strong, the solution is to use a rubber band to attach a small piece of paper to the screw on the knife beam. Cut out the bag and snap it down at the same time.
9. How to solve the uneven thickness of the film blowing machine when the output and winding are thin and one side is thin?
You need to wrap the electronic frame around the thin side until it fits.
10. What is the reason why the printing bag is not feeding smoothly and the electric eye is not sensitive enough?
First check whether the electric eye is used correctly. In general, the electric eye is best to use blue if the bag is single color, red for heavy color, red can be used for single color and heavy color, and the roller under the electric eye of the edge correcting machine should be sprayed black. , If the bag has a single color and is heavy, a white background is best. For example, for the printed heavy-color pearlescent film on the flat-bed folding machine, the rod roller under the electric eye is best wiped off to white.
11. The new machine has not cut the bag for a long time, the cutter keeps cutting thinner films, or the cutter keeps cutting a certain number of times.
The main reason for this is that after the upper knife beam slider has been run-in for a period of time, the gap between the slider and the copper spacer is too large, causing the cutter to cut continuously.
solution:
1. Adjust the top seam of the copper sheet spacer: (M6 inner hexagon), adjust it until the upper knife beam slider cannot be shaken by hand, but not too tight. When the machine is turned on to cut 15-20 sheets per minute, there is no obvious shaking of the upper knife beam, which proves that the gap is just right!
2. Adjust the spring pressure of the upper knife beam!
12. What are the common factors that cause the sealing of flat mouth machines and R machines to be not firm:
1. Check whether the hot knife is stuck: if the hot knife does not seal and cut smoothly, the sealing will sometimes be firm and sometimes not firm:
2. Check whether the knife edge will be deformed or bent due to heating. The inspection method is to turn the hot knife to the bottom. When the hot knife just touches the silicone roller or the silicone plate, judge whether the hot knife is bent or not by the light transmission method. If bent, repair the flatness of the blade.
3. Check whether the film has too strong electrons. Use the film that has not been used to seal and cut to see if there is any obvious change in the seal. If so, it proves that the film has too strong electrons. It is recommended to change the material.
question:
After the new machine is commissioned for cutting or the plastic bag department comes to try cutting for a period of time, the gear bearing will be worn on the feeding rack and edge correction machine. When it is commissioned by the customer, the customer will often think that our machine is an old machine.
Problem: After the machine is delivered to the customer, the machine's ground screw is not stable enough to cause the machine to shake when working! The after-sales team should pay attention to this detail.
Question: The distance between the sealing line of the flat mouth machine and the cutting edge is unstable, and there will be an error change of 1-4MM, but the error of the total length of the cut bag is within 1MM. I don't understand why?
Assembly problems
1 The size of each spare part is not processed correctly, and each size is not processed according to the requirements of the drawings, resulting in the size chain not meeting the design requirements.
2. The shaft shoulder of the rubber roller is not accurate, and the rubber roller may move in series under the influence of the axial force after the film roller is run-in for a long time.
3. The direction of the hole position of the linear bearing on the side plate and bottom plate cannot be reversed, otherwise it will affect the assembly of futures parts.
4. The cam tapping is not vertical
