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Vacuum plastic suction process

A vacuum blister and process technology, applied in the field of blister, can solve the problems of long softening processing time of raw material sheets, harsh temperature requirements, and affecting production efficiency, and achieve the effects of reducing vacuum pumping time, increasing vacuum degree, and increasing speed

Inactive Publication Date: 2021-06-11
昆山久升塑联智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a vacuum forming process, which solves the problem that the existing vacuum forming process has a single process, and the softening process of the raw material sheet requires a harsh temperature, which makes the softening process of the raw material sheet take a long time , a problem that greatly affects production efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A vacuum blister process, the specific steps are: S1, select a blister mold and a raw material sheet, the raw material sheet is specifically a PVC sheet, the thickness of the PVC sheet is 3mm to 5mm, and the length of the PVC sheet is At 10 to 25mm; S2, heat the selected raw material sheet until it is completely softened, control the molding temperature at 200°C, the heating rate is 10°C / min, and pass the raw material sheet through 40°C every 2-3 seconds Air, each air passage time is 0.5 seconds, the heating time of the whole softening process is 4s, the exhaust gas discharged from the heated raw material sheet is first filtered and then discharged into the air; S3, the softened raw material sheet after heating and softening is immediately Transport it to the blister mold in the vacuum blister forming machine, turn on the vacuum equipment, and raise the temperature of the mold at the same time, increasing the temperature by 5°C per second, the vacuum degree is 0.07MPa, t...

Embodiment 2

[0023] A vacuum blister process, the specific steps are: S1, select a blister mold and a raw material sheet, the raw material sheet is specifically a PVC sheet, the thickness of the PVC sheet is 3mm to 5mm, and the length of the PVC sheet is In 10 to 25mm; S2, heat the selected raw material sheet until it is completely softened, control the molding temperature at 230°C, the heating rate is 15°C / min, and pass 50°C air through the raw material sheet every 2 seconds, The air passing time is 0.7 seconds each time, and the heating time of the whole softening process is 6s. The exhaust gas discharged from the heated raw material sheet is first filtered and then discharged into the air; S3, the softened raw material sheet after heating and softening is immediately transported to the In the blister mold in the vacuum blister forming machine, turn on the vacuum equipment and heat up the mold at the same time, increasing the temperature by 6°C per second, the vacuum degree is 0.2MPa, the...

Embodiment 3

[0025] A vacuum blister process, the specific steps are: S1, select a blister mold and a raw material sheet, the raw material sheet is specifically a PVC sheet, the thickness of the PVC sheet is 3mm to 5mm, and the length of the PVC sheet is In 10 to 25mm; S2, heat the selected raw material sheet until it is completely softened, control the molding temperature at 250°C, the heating rate is 20°C / min, and pass 60°C air through the raw material sheet every 3 seconds, Each air passing time is 1 second, and the heating time of the whole softening process is 8s. The exhaust gas discharged from the heated raw material sheet is first filtered and then discharged into the air; S3. Immediately transport the softened raw material sheet after heating and softening to the In the plastic mold of the vacuum plastic forming machine, turn on the vacuum equipment and heat up the mold at the same time, increasing the temperature by 8°C per second, the vacuum degree is 0.3MPa, the vacuuming time i...

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Abstract

The invention discloses a vacuum plastic suction process and relates to the technical field of plastic suction. The vacuum plastic suction process comprises the specific steps that S1, a plastic suction mold and a raw material sheet material are selected; and S2, the selected raw material sheet material is heated to be completely softened, the forming temperature is controlled to be 200-250 DEG C, the heating speed rate is 10-20 DEG C / min, air with the temperature being 40-60 DEG C passes through the raw material sheet material every 2-3 seconds, the passing time of the air every time is 0.5-1 second, and the heating time of the whole softening process is 4-8 seconds. By means of the vacuum plastic suction process, the problems that an existing vacuum plastic suction process is single in process, the requirements for the temperature in the softening process of the raw material sheet material are harsh, the softening processing time of the raw material sheet material is long, and the production efficiency is greatly affected are solved.

Description

technical field [0001] The invention relates to the technical field of plastic absorption, in particular to a vacuum plastic absorption process. Background technique [0002] The main advantages of vacuum blister packaging are that it saves raw and auxiliary materials, light weight, convenient transportation, good sealing performance, and meets the requirements of environmentally friendly green packaging; it can pack any special-shaped products without additional cushioning materials for packing, but the existing vacuum The process of the blister process is single, and the temperature of the softening process of the raw material sheet is demanding, which makes the softening process of the raw material sheet take a long time, which greatly affects the production efficiency. Contents of the invention [0003] (1) Solved technical problems [0004] Aiming at the deficiencies of the prior art, the present invention provides a vacuum forming process, which solves the problem t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C51/10B29C51/46B29K27/06
CPCB29C51/10B29C51/46B29K2027/06
Inventor 张青
Owner 昆山久升塑联智能科技有限公司
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