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Process and mould for forming food or beverage container with plant fibres

A molding process and plant fiber technology, applied in textiles and papermaking, etc., can solve the problems of slow heat transfer, short service life, long molding time, etc., achieve uniform heating energy consumption, solve mold blockage, and improve quality

Inactive Publication Date: 2004-09-08
武汉第二机床厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The external heating adopts the heating on the upper and lower end panels of the mold, which may easily cause uneven heating of the mold, slow heat transfer, more mold consumables, and different color of the product. During production, the thermal efficiency is low and the molding time is long.
[0004] 2. Mold exhaust and diversion mainly rely on small holes on the outer wall of the cavity, which can easily cause uneven overflow and pressure difference, resulting in uneven surface quality of the product, the bottom is not easy to dry out, and air pockets and depressions are formed on the inner wall to prevent seepage of the product decline in sexual indicators
[0005] 3. The demoulding of the product mostly adopts direct motion or electromagnetic vibration. Its disadvantages are: the non-gas slit of the lower mold is easy to block, the product is easy to be damaged, the mold is seriously worn, and the effective life of the electromagnet and the relay is seriously insufficient.
[0006] 4. Existing molds generally have fatal defects such as complex structure, high process cost, short service life, insufficient interchangeability, and poor product consistency.

Method used

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  • Process and mould for forming food or beverage container with plant fibres
  • Process and mould for forming food or beverage container with plant fibres
  • Process and mould for forming food or beverage container with plant fibres

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Experimental program
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Embodiment Construction

[0018] The upper die holder 15 is connected with the upper die 1 and the positioning flange 6 by screws, the lower die holder 16 is connected with the lower die 2, the blocking block 18 is fixed on the lower die 2 with the seam screws, and the ejector rod guide sleeve 7 is used with the retaining ring for the shaft Fixed on the bottom of the lower mold 2, the ejector rod 17 is connected with the guide sleeve 7 by pipe thread, and the upper joint surface 20 between the two, and the ejector rod 17 is controlled by the thin cylinder 9 as a pneumatic actuator to control the opening of the upper joint surface 20 between the two. closed (see figure 1 ), the hollow ejector rod is the longitudinal air blow hole 21-1, the upper port of which communicates with the transverse air blow hole 21-2, and the transverse air blow hole 21-2 communicates with the gap when the joint surface of the ejector block and the guide sleeve is pulled apart, and the ejector rod The lower end is connected wi...

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PUM

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Abstract

A technology for moulding the food or beverage container with plant fibres includes such steps as feeding raw material, moulding, heating and demoulidng which includes loosening the upper mould a little and pneumatically demoulding the lower mould. The mould is heated by the heating body embedded in upper mould, the heating ring around the lower mould and the heating plate at bottom. Its mould is composed of upper and lower moulds, heating body and demoulding mechanism. An eject rod with central air channel is connected between pneumatic executing part and air source for demoulding of lower mould.

Description

technical field [0001] The invention relates to a plant fiber tableware forming process and mold, which is mainly used for the production of disposable plant fiber environment-friendly tableware, and is also suitable for industrial cushioning packaging products. Background technique [0002] The existing plant fiber foamed tableware molding process and molds mainly adopt external heating, peripheral exhaust, vibration demoulding and other methods. Practice has proved that the above methods have the following defects that cannot be ignored: [0003] 1. The external heating adopts the heating on the upper and lower end panels of the mold, which may easily cause uneven heating of the mold, slow heat transfer, more mold consumables, and different color of the product. During production, the thermal efficiency is low and the molding time is long. [0004] 2. Mold exhaust and diversion mainly rely on small holes on the outer wall of the cavity, which can ea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C33/00B29C33/02B29C33/08B29C33/46D21J3/00D21J3/10
Inventor 张子林王泉章李庆宪罗洁
Owner 武汉第二机床厂
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