Full-automatic heat sealing and cutting device for plastic film and heat sealing and cutting method of device

Abstract

The invention discloses a full-automatic heat sealing and cutting device for a plastic film and a heat sealing and cutting method of the device. The full-automatic heat sealing and cutting device for the plastic film comprises a transmission mechanism, a pressing mechanism, a heat sealing and cutting mechanism and a front sealing mechanism, wherein a heating wire device comprises a front heating wire, an exposed heating wire and a back heating wire which are arranged in parallel horizontally, the exposed heating wire is located between the front heating wire and the back heating wire, and high-temperature adhesive tapes A are mounted above the front heating wire and the back heating wire. The one-time sealing and cutting operation of the continuous and rolled plastic film is realized through the three linear heating wires, the device has the characteristics that the device is simple in structure, convenient to operate and capable of running stably and performing sealing firmly, and the working efficiency is greatly improved. With the adoption of the device, plastic bags meeting different length requirements in a certain width range can be produced, lengths of the plastic bags are adjustable, and the device is applicable to fields of food, packaging, medicines, chemical engineering and the like.

Description

technical field [0001] The invention relates to the technical field of plastic film sealing devices, in particular to a fully automatic plastic film heat sealing and cutting device and a heat sealing and cutting method thereof. Background technique [0002] The plastic bag sealing machine is usually equipped with a movable pressing frame that moves up and down and a heating wire fixed under the table above a horizontal platform, and a transmission rod and a pedal connected to the movable pressing frame are provided under the platform. During use, the foot pedal drives the movable press frame down through the transmission rod, and squeezes the seal on the heating wire on the table. The heating wire seals the plastic bag. The sealing machine of this structure is difficult to completely separate the redundant part of the sealing part from the plastic bag during use, and the user needs to tear off the redundant part again, thereby affecting the work efficiency. [0003] Due to...

AI Technical Summary

Problems solved by technology

The sealing machine with this structure is difficult to completely separate the excess part of the seal from the plastic bag during use, requiring the user to tear off the excess part again, thus affecting the work efficiency

[0003] Due to the fact that the existing plastic bag sealing machine needs to stop many times in the processing process, the processing efficiency is low, it is not suitable for mass production, and the film covering device cannot be synchronized and the conveying film can be precisely controlled according to the actual length of the film required. To a certain extent Also caused the waste of material, in addition in processing, because the mold of prior art heat-sealing and cutting device is generally fixed setting, it is difficult to change heat-sealing and cutting mold and cutting tool to adapt to the processing of different shapes, and equipment versatility is not strong, The investment cost is high when processing products of different specifications and shapes

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