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Mould for manufacturing plastic part comprising system for making openings in part

A technology of plastic materials and molds, applied in the direction of household components, household utensils, other household utensils, etc.

Inactive Publication Date: 2017-09-26
CO PLASTIC OMNIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Finally, these tools come with alignment problems relative to the opening to be molded

Method used

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  • Mould for manufacturing plastic part comprising system for making openings in part
  • Mould for manufacturing plastic part comprising system for making openings in part
  • Mould for manufacturing plastic part comprising system for making openings in part

Examples

Experimental program
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Embodiment Construction

[0042] Refer now Figure 1A with Figure 1B These figures show a mold 1 according to the invention for manufacturing a part 2 made of plastic material MP. The mold 1 includes a first element 3 and a second element 4 facing it, according to Figure 1A with Figure 1B In the example, the first element is fixed and the second element is movable. These two elements form a cavity 5 corresponding to the part 2 to be realized when the mold 1 is in the closed position.

[0043] The closed position is defined as the first position when the movable element 4 is lowered, in which position the movable element 4 is in contact with the plastic material MP introduced into the mold to mold the part 2. Therefore, at the beginning of closing, there is a space between the two elements 3, 4 of the mold 1 and therefore there is a free volume of material necessary for the compression stage.

[0044] The second element 4 comprises at least one system 6 for realizing moulded openings in the part 2. The sy...

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PUM

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Abstract

The invention relates to a mould (1) for manufacturing a plastic part (MP), comprising a first element (3) and a second element (4) forming, in the closed position of the mould (1), a cavity (5) corresponding to the part (2) to be manufactured, in which the second element (4) comprises at least one system (6) for making moulding openings in said part (2), said system (6) comprising at least one member (7) forming a cavity of an opening for the finished part (2), said member (7) being movable relative to the second element (4) in the closing direction of the mould (1), between a retracted position and an position extending into the cavity (5). The system (6) comprises at least one positioning means (8) for positioning the member (7) in the extended position relative to the first element (3), said system (6) being sized such that, in the extended position of the member (7), the distance between a surface of the member (7) bearing on the plastic material (MP) and the first element (3) enables the formation of a thin layer of plastic material having a repeatable thickness.

Description

Technical field [0001] The present invention relates to the technical field of manufacturing plastic material parts by molding, especially parts including openings. [0002] In particular, the components may be, but are not limited to, automotive structural components, such as: technical faceavant technique, support d'aile and floor. [0003] This type of component is characterized by including through holes, and at the same time must maintain good mechanical strength. Background technique [0004] In order to obtain plastic material parts, it is known to use molding methods, such as compression molding and / or injection molding and / or extrusion molding. [0005] The hot-press compression molding performed in the mold is generally achieved by the movement of the movable elements of the mold (actuated by the press) relative to the fixed elements of the mold, these elements are usually made of steel. [0006] Generally, a plan de chargement composed of a plastic material sheet is arranged...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/00B29C33/76B29C43/36B29L31/00
CPCB29C33/0033B29C33/76B29C2043/3626B29C2793/0045B29L2031/737B29C43/361B29C2043/3613B29C43/021B29C71/0009B29C2071/0045
Inventor JY·索泽
Owner CO PLASTIC OMNIUM