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Manufacturing process of TPE (Thermal Plastic Elastomer) claw-type unscrewing cover

A manufacturing process and unscrew cap technology, which is applied in capping, closing, packaging, etc., can solve problems such as discharge and low glue volume accuracy, and achieve the effects of reducing heat loss, small heating area, and saving material consumption

Inactive Publication Date: 2015-03-04
WUXI HUAPENG BOTTLE CAP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the shortcomings in the above-mentioned existing production technology, the applicant provides a TPE claw-type twist-off cap manufacturing process, which adopts on-line screw melting of special sealing materials to form TPE claw-type twist-off caps, which solves the problem of insufficient glue volume accuracy. High, exhaust gas emissions from lid making and baking, etc., which improves the food hygiene level

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The first step: coating semi-finished iron;

[0031] The second step: Punch the cover of the semi-finished iron punch after printing;

[0032] The third step: make an empty cover for the semi-finished claws that have been punched;

[0033] Step 4: Melt and extrude granules or rings into the empty cover with an online screw, heat the empty cover through 8.5KW intermediate frequency induction, make the temperature of the empty cover reach 110°C, and mold the melted granules or rings into the required Sealing material, TPE type claw twist-off cap made by cooling inspection.

[0034] In the fourth step, the sealing material for on-line screw melt extrusion is obtained by the following steps: select thermoplastic elastomer particles, and melt and extrude the particles through a single screw or twin screws at a temperature of 140°C.

[0035] The advantages of the present invention using on-line screw melting special sealing material compression molding are that: first, the ...

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Abstract

The invention relates to a manufacturing process of a TPE (Thermal Plastic Elastomer) claw-type unscrewing cover. The process comprises the following steps of firstly, printing a semi-finished iron product; secondly, punching a cover on the painted semi-finished iron product; thirdly, making an empty cover from a semi-finished coiling claw product which is subjected to cover punching; fourthly, melting an online screw in the empty cover to extrude particles or annuli, performing induction heating on the empty cover through medium frequency of 7.0-13.0KW to enable the temperature of the empty cover to reach 85-165 DEG C, molding a required sealing material with the particles or the annuli which are molten by mold pressing, and performing cooling and checking to obtain the TPE claw-type unscrewing cover. The TPE claw-type unscrewing cover is manufactured by melting the online screw and molding the special sealing material by mold pressing, so that the problems of low glue quantity accuracy, emission of cover-manufacturing baking waste gas and the like are solved, and the level of food sanitation is improved.

Description

technical field [0001] The invention relates to the technical field of bottle cap manufacture, in particular to a manufacturing process of a TPE claw-type twist-off cap. Background technique [0002] The mainstream trend of packaging materials is multi-functional, lightweight, environmentally friendly and intelligent, and green, environmentally friendly and low-carbon packaging is also more and more respected and concerned. Traditional PVC claw-type twist-off caps are generally completed through five steps: cap punching, claw rolling, glue injection, glue removal, and baking. There are mainly the following problems in the PVC claw type twist-off cap: [0003] (1) The material used for glue injection is PVC-type plastisol, which needs to be baked and cured at high temperature after injection, and is volatile and emits exhaust gas; [0004] (2) The material is plasticized by adding a large amount of additives to polyvinyl chloride thermosetting resin. Long-term exposure to f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D51/48
Inventor 秦简许迪兴
Owner WUXI HUAPENG BOTTLE CAP
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