Automatic width adjusting device for mold head of plastic composition machine

Abstract

The invention discloses an automatic width adjusting device for a mold head of a plastic composition machine. The device comprises the mold head, side plates, width adjusters and sealing devices; for width adjustment, a motor or a rodless cylinder is used for adjusting the position of a filler gun or a filler gauge in the mold head so as to control the width of plastic coating composition; the periphery of the filler gun is sealed by pressing a plastic sheet with a hollow screw in a side plate hole, and a flow guide sheet is mounted at one end of the filler gun and can prevent plastic at a mold lip runner from flowing transversely; and the periphery of the filler gauge is sealed by sleeving the plastic sheet and an inner press block with a metal frame and a plastic frame and enabling the plastic sheet to inwards hold the filler gauge tightly through pressing of an outer press block, and the flow guide sheet is mounted at one end of the filler gun and can prevent the plastic at the mold lip runner from flowing transversely. The device has the beneficial effects as follows: the width is adjusted easily, conveniently and reliably with the motor or the rodless cylinder, the phenomenon of forced shutdown due to material leakage is avoided, the product quality is improved, the production efficiency is substantially improved, and the economic benefit of an enterprise is substantially increased.

Description

[0001] The invention relates to the field of packaging machinery, in particular to an automatic amplitude adjustment device for a die head of a plastic compound machine. [0002] technical background [0003] At present, the packaging bags used in various industries at home and abroad, among which the amount of laminated plastic woven bags is particularly large, and its production process is plastic raw materials-plastic wire drawing machine drawing flat wire-plastic circular loom weaving cylindrical cloth-plastic compound machine coating Composite-bag-making machine-made bags, in which the plastic composite machine is difficult to adjust the amplitude of plastic coating and compounding. When producing different specifications of plastic-coated composite plastic woven bags, the feeler gauge is adjusted by hand hammering, which takes time and effort and damages the feeler gauge and the die head. At the same time, a large amount of material leaks at the amplitude modulation place ...

AI Technical Summary

Problems solved by technology

[0003] At present, the packaging bags used in various industries at home and abroad, among which the amount of laminated plastic woven bags is particularly large, and its production process is plastic raw materials-plastic wire drawing machine drawing flat wire-plastic circular loom weaving cylindrical cloth-plastic compound machine coating Composite-bag-making machine-made bags, in which the plastic composite machine is difficult to adjust the amplitude of plastic coating and compounding. When producing different specifications of plastic-coated composite plastic woven bags, the feeler gauge is adjusted by hand hammering, which takes time and effort and damages the feeler gauge and the die head. At the same time, a large amount of material leakage at the amplitude modulation will seriously affect the normal production

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