Decorative pattern hot plate for two-layer bag making machine

Abstract

The invention relates to the technical field of a bag making machine, and in particular to a decorative pattern hot plate for a two-layer bag making machine. The decorative pattern hot plate comprises a hot plate body (1) and two contact plates (2), wherein the hot plate body (1) and the contact plates (2) are fixedly connected with each other into a whole, a plurality of square decorative patterns (3) are cut on contact surfaces of the bottom ends of the contact plates (2), the square decorative patterns (3) are arranged in a staggered way along the length directions of the contact plates (2), and the centers of the square decorative patterns (3) are provided with circular holes (4). Compared with the prior art, the decorative pattern hot plate is novel and simple in structure, and reasonable in design. The shape of the hot plate is changed, so that the contact surface of the hot plate can be reduced, the seal area of the hot plate can be educed, the decorative pattern hot plate can be well sealed under the condition of large conditional error, the seal strength of a product can be guaranteed, the sealing and cooling can be accelerated, the sealing and crystallizing integrity of a thin film can be guaranteed, a seal wire of the product is hard to lengthen, and the happening of phenomena, i.e. sealing, hole breaking and the like can be avoided.

Description

[technical field] [0001] The invention relates to the technical field of bag making machines, in particular to a patterned hot plate of a double-layer bag making machine. [Background technique] [0002] At present, there is a common problem in the bag making equipment for outer packaging bags of diapers, toilet paper, urine pads, and pet pads: the heat seal strength and aesthetics of the products. Usually, the sealing of the outer packaging of diapers, toilet paper, urine pads, and pet pads is a sealing process that uses upper and lower high-temperature hot plates, pressure, and time control to melt the material of the part of the film that needs to be sealed, and then crystallize and tightly connect to generate strength after cooling. . figure 1 Schematic diagram of the construction of the sealing device, figure 2 It is a schematic diagram of the shape of the existing packaging bag, which is represented by figure 2 It can be seen that the shape of the existing hot plat...

AI Technical Summary

Problems solved by technology

[0002] At present, there is a common problem in the bag making equipment for outer packaging bags of diapers, toilet paper, urine pads, and pet pads: the heat seal strength and aesthetics of the products.

figure 1 Schematic diagram of the construction of the sealing device, figure 2 It is a schematic diagram of the shape of the existing packaging bag, which is represented by figure 2 It can be seen that the shape of the existing hot plate is flat and has no sealing surface such as patterns. If the pressure, temperature, sealing time, speed and other aspects are not well controlled during the heat sealing process, it will cause product quality problems, such as excessive sealing strength. A low or high condition occurs

On the one hand, the low sealing strength is caused by the large contact surface of the flat hot plate, the temperature, pressure, and sealing time are too small, and the speed is too fast, etc., and the adjustment requirements are very high; on the other hand, the sealing strength is too high. The hot plate contact surface ( image 3 Points a and b) in the middle are prone to cracking after sealing, and when the cooling is insufficient, the thickness of the sealing line will become thinner, the strength will decrease, and holes will easily occur

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