Common problems and analysis of aluminum plastic blister packing machine

Common problems and analysis of aluminum plastic blister packing machine

1, Blister molding

According to the forming of the bubble mask, the PVC film (hard piece) is heated through the mold and formed by the compressed air or vacuum to form the required shape and size of the bubble cover. Therefore, when the forming of the bubble cover needs to be solved from the following aspects:

(1) whether PVC film (hard film) is a qualified product or not;

(2) whether the temperature of the heating device is too high or too low;

(3) whether the surface of the heating device is adhered to PVC;

(4) whether the mold is qualified, whether the molding hole is smooth, and whether the porosity is smooth.

(5) whether the cooling system of the mould is working normally and effectively;

(6) whether the vacuum and exhaust rate of drum vacuum forming can reach the normal value, and there is no normal loss of the pipeline.

(7) whether the compressed air of flat plate positive pressure molding is clean and dry, whether the pressure and flow can reach the normal value, and there is no normal loss of the pipeline.

(8) flat plate positive pressure molding die is parallel clamping PVC belt, whether there is air leakage phenomenon.

2. Hot pressing sealing

During the hot pressing sealing process of the drum type aluminum plastic blister package, the PVC belt and the aluminum foil are hot pressed by a parallel roller heat seal roller and the mesh roll under a certain temperature and pressure. The contact between heat seal roller and anilox roller is linear, and the pressure needed is relatively small.

During the hot pressing sealing process of the plate type aluminum plastic bubble cover, the PVC belt and the aluminum foil are sealed in the same plane by the parallel flat plate heat sealing plate and the reticulated plate in the same plane under the action of certain temperature and pressure. The contact between heat seal plate and netted plate is surface contact, and the pressure needed is relatively large. Whether it is a roller or a flat hot press, when the heat seal is not clear, the mesh is not deep.

First, when PVC is heated, the problem of bubbling and other problems should be solved from the following aspects:

(1) whether the aluminum foil is a qualified product and whether the heat sealing surface is coated with the required hot melt adhesive;

(2) the temperature of the heating device is too high or too low;

(3) is there any abnormal resistance in the operation of PVC tape or aluminum foil?

(4) whether the mold is qualified, whether the surface is smooth and smooth, whether the bubble cap formed on the PVC belt can be smoothly inserted into the hole of the heat sealing roller (plate).

(5) the veins on the roller (plate) are clear and uniform in texture.

(6) whether the cooling system of the heat sealing mould works normally and effectively;

(7) the pressure required for hot sealing is normal;

(8) whether the heat sealing roller (plate) and anilox roller (plate) are parallel.

3, some advanced technology of aluminum plastic blister packaging machine equipped with various automatic monitoring devices, can play a variety of protection, in the discovery of the following problems automatically stop the operation of the machine:

(1) the safety cover is open;

(2) the pressure of compressed air is insufficient;

(3) the heating temperature is not enough;

(4) the use of PVC film or aluminum foil;

(5) the use of packaged drugs;

(6) the mechanical overload of some workplaces;

(7) circuit overload.

4, before the following problems are solved, the machine cannot start operation.

(1) the safety cover was not completely closed;

(2) the pressure of compressed air is insufficient;

(3) the heating temperature is not enough;

(4) lack of PVC or aluminum foil film;

(5) overloading or other failures have not been ruled out;

(6) the function buttons are set up incorrectly, and the key is not reset. In addition to the above mentioned problems, other problems may be encountered in the actual use of the aluminum plastic packaging machine. It needs specific analysis and careful search of the cause of the problem is the key to eliminating and solving the problem.