Air exhaust and sealing device for wire and cable material packaging bag

Abstract

The invention discloses an air exhaust and sealing device for a wire and cable material packaging bag, and belongs to the technical field of packaging machinery for plastic particles for wires and cables. The air exhaust and sealing device comprises a box body, an air exhaust mechanism, a bag opening heat-sealing mechanism and a packaging bag supporting mechanism, wherein a box body cavity is formed in the box body; an electrical operation control box is arranged at the top of the box body; the air exhaust mechanism is arranged at the upper part of the front side of the box body; the bag opening heat-sealing mechanism is arranged at a position, corresponding to the lower side of the air exhaust mechanism, on the front side of the box body; the packaging bag supporting mechanism is positioned at a position corresponding to the lower side of the bag opening heat-sealing mechanism and is supported on a terrace of a use place along with the box body; the air exhaust mechanism and the bag opening heat-sealing mechanism are connected with the electrical operation control box in an electrical control manner. According to the air exhaust and sealing device, the sealing efficiency is improved, and the packaging requirement on wire and cable materials for industrial enlargement production is met; the labor intensity is alleviated; the packaging bag can be sealed under the vertical state.

Description

technical field [0001] The invention belongs to the technical field of plastic particle packaging machinery for electric wires and cables, and in particular relates to an air extraction and sealing device for packaging bags of electric wires and cables. Background technique [0002] The production process of wire and cable materials (grains, the same below) such as silane cross-linked polyethylene wire and cable materials is roughly: use low-density polyethylene resin as the base material (main component raw material) to add cross-linking agent, silane coupling agent and anti-corrosion agent. Oxygen, etc., put into the screw extruder to melt and extrude after mixing, then cool and pelletize, and then dry through the dryer. using an industrial sewing machine). The aforesaid packaging bag suction sealing device is interposed between the weighing device and the sewing device. [0003] In order to prevent wire and cable materials from getting damp in links such as storage and ...

AI Technical Summary

Problems solved by technology

[0004] Previously, the sealing of the aforementioned inner bag was usually done manually by workers, such as holding a soldering iron or similar tools to heat and seal the bag opening. One of the self-evident shortcomings of this sealing operation is low efficiency. , it is difficult to meet the requirements of industrialized enlarged production; second, the investment of manpower is too much, which is not conducive to saving labor resources; third, the sealing quality is affected by the experience, responsibility and emotion of workers

[0005] With the development of automatic packaging equipment technology, the aforementioned technical problems have basically been solved, and there is no shortage of technical information on packaging bag sealing in the published Chinese patent documents, such as "an automatic sealing bag" recommended by the authorized announcement number CN202528504U "machine", more typical such as the "duck beak-shaped suction nozzle to heat-sealing device for plastic bags" provided by the authorized announcement number CN2700243Y. However, looking at lines 4 to 14 on page 2 of the instruction manual, it is not difficult to find the following shortcomings: since the air suction nozzle and the heat sealing knife form a vertical relationship with each other (the two are in a T-shaped relationship), it is necessary to make the packaging bag lie down. state and make the bag mouth face the suction nozzle, however, the material in the bag will overflow from the bag mouth when the packaging bag is lying down, resulting in a shortage of materials due to material escape, and there is a risk of material waste

In particular, for plastic particles for wires and cables that have a rolling effect, if the bag body is placed horizontally, it is objectively difficult or even impossible to achieve sealing.

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