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System for preforming plastic sheets, comprising sequentially actuated pressing means

An actuating device, a technology of plastic sheets, applied in the field of compression molding to manufacture plastic parts, can solve the problems that the preforming device is not suitable for mass production rhythm, manual operation, etc.

Inactive Publication Date: 2017-08-29
CO PLASTIC OMNIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Finally, these preforming devices are not suitable for high-volume production rhythms
In fact, depending on the situation, these preformed devices may require manual operations, such as the application of plastic sheets, peeling after application of vacuum, etc.

Method used

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  • System for preforming plastic sheets, comprising sequentially actuated pressing means
  • System for preforming plastic sheets, comprising sequentially actuated pressing means
  • System for preforming plastic sheets, comprising sequentially actuated pressing means

Examples

Experimental program
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Embodiment Construction

[0037] A system 1 according to the invention for preforming, for example, a thermosetting plastic sheet MP comprises:

[0038] - a first element 2 and a second element 3, wherein said first element forms a preform cavity, said second element being adapted to be placed opposite the first element;

[0039] - a set of compacting means 4 carried by the second element 3 and capable of being actuated sequentially to exert pressure locally on the plastic sheet MP so as to press the sheet MP against the preform chamber 2;

[0040] - At least one sequential actuation device 5 for the compacting device 4 .

[0041] The preform cavity 2 is an element having the shape of the part to be molded, which is preferably rigid. The part can be manufactured by machining steel, wood, foam and cast resin, among others.

[0042] The second element 3 can itself act as a punch carrying the compacting means 4, ie the second element itself can also be rigid and adapted to exert pressure on the sheet o...

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PUM

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Abstract

The invention relates to a system (1) for preforming a sheet of plastic material (MP), comprising a first element (2) forming a performing tool, characterised in that it includes: a second element (3) designed to be positioned facing the first element (2); a set of pressing means (4), actuated sequentially and borne by the second element (3), in order to apply a pressure locally on the sheet of plastic material (MP), such as to press the sheet (MP) against the first element (2); at least one means (5) for sequentially actuating the pressing means (4).

Description

technical field [0001] The invention relates to the technical field of manufacturing plastic parts by moulding, in particular by compression moulding. [0002] In particular, the invention relates to an apparatus for preforming sheets of thermosetting or thermoplastic plastics. Background technique [0003] For the manufacture of plastic parts, it is known to use methods of molding by thermocompression with pressurization in a closed mould, wherein the compression is generally achieved by the movement of the movable elements of the mold (actuated by the press) relative to the fixed elements of the mould, these The elements are generally made of steel. [0004] In general, a loading surface ("plan de charge") consisting of a plastic sheet is arranged in the compression mold, the plastic being generally a composite material called "SMC". The abbreviation comes from the English name "sheet molding compound" or "sheet molding composite", that is, sheet molding compound. The m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C51/08B29C51/28B29B11/06B29C51/00B29C51/26B29C51/38B29C51/44B29C51/46B29C70/44B29K21/00B29K105/12B29L31/30
CPCB29C51/085B29C51/087B29C51/28B29B11/06B29C51/004B29C51/46B29C51/445B29C51/262B29C51/38B29C70/44B29K2021/006B29K2021/003B29L2031/3055B29L2031/30B29K2105/12B29K2883/00
Inventor 达米安·布瓦松杰罗姆·布里冉艾米利亚·于默尔大卫·特雷斯洛朗·尼尔林
Owner CO PLASTIC OMNIUM