Pressing knife device for large envelope processing heat sealing equipment

Abstract

The invention discloses a pressing knife device for large envelope processing heat sealing equipment. The device comprises a stand column, the top of the stand column is fixedly connected with a crossrod, the bottom of the cross rod is slidably connected with an air cylinder, the bottom of the air cylinder is fixedly connected with connecting blocks, and two sides of the bottoms of the connectingblocks are fixedly connected with clamping plates; and a pressing knife body is arranged at one side of each clamping plate, and telescopic rods are fixedly connected to the two sides of the upper surface of each pressing knife body. According to the pressing knife device for the large envelope processing heat sealing equipment, the telescopic rods, springs, sliding rods and sliding grooves are arranged in a matched manner, when the pressing knife bodies are pressed downwards, the telescopic rods and the springs contract, the buffering effect is achieved, bending deformation of the pressing knife bodies can be prevented, and the distance between two connecting blocks can be adjusted through matched arrangement of a double-shaft motor, a ball screw and a screw block, so that mounting of pressing knives with different lengths can be achieved. Through the matched arrangement of a guide rod and a guide block, the limiting effect can be achieved when the pressing knives are pressed downwards.

Description

technical field [0001] The invention relates to the technical field of heat-sealing equipment for processing envelopes, in particular to a press knife device for heat-sealing equipment for large-scale envelope processing. Background technique [0002] The press knife device is mainly a cutting device that drives the press knife to press down through the action of the cylinder, so as to cut the envelope that has been heat-sealed. [0003] Existing press knife devices often can only use a press knife of a specific size for cutting, and cannot be adjusted according to the length of the press knife. When the press knife is cut, because it is directly connected to the cylinder, it is easy to cause pressure when the press knife is pressed down. The knife is deformed, and long-term use will cause the problem of cutting offset, and the current knife pressing device is often inconvenient to disassemble the pressing knife. Therefore, we propose a large envelope processing heat sealing...

AI Technical Summary

Problems solved by technology

[0003] Existing press knife devices often can only use a press knife of a specific size for cutting, and cannot be adjusted according to the length of the press knife. When the press knife is cut, because it is directly connected to the cylinder, it is easy to cause pressure when the press knife is pressed down. The knife is deformed, and long-term use will cause the problem of cutting deviation, and the current knife pressing device is often inconvenient to disassemble the pressing knife. Therefore, we propose a large-scale envelope processing heat sealing equipment with a pressing knife device to solve the above problems

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