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In-mould multi-cavity shear gate mechanism

A gate and block cutting technology, which is applied in the field of gate cutting mechanism, can solve the problems of unseen and manual separation, and achieve the effect of convenient production, simple mechanism and outstanding substantive features

Inactive Publication Date: 2011-04-06
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing plastic injection molds with side gate feeding form still connect with the flow channel aggregate after the product is formed, requiring manual separation, especially for molds with two cavities in one mold or multiple cavities in one mold with different shapes of cavities. The side gate cutting mechanism that can simultaneously separate the cavity products of plastic injection from the flow channel aggregate has not been seen so far.

Method used

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  • In-mould multi-cavity shear gate mechanism
  • In-mould multi-cavity shear gate mechanism
  • In-mould multi-cavity shear gate mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] see figure 1 , machined into a movable template 17, a movable mold driven cutting block 8 is arranged on the movable template 17, and a condensate ejector pin 12 is arranged in the movable mold driven cutter 8, and the condensed material ejector rod 12 is connected with a condensed material Ejector baffle plate 11, condensed material ejector 12 and movable mold driven cutting block 8 are provided with condensed material ejector return spring 13, which is machined into fixed template 2, and sprue sleeve 3 is arranged on fixed template 2 and the fixed mold driven cutting block 7, the fixed mold driven cutting block 7 is connected with a cutting block drive spring 6, the gate 4 is connected with the sprue sleeve 3, and a column pin 10 is arranged on the movable mold driven cutting block 8 to drive The slide block 9 is provided with an oblique chute 16 corresponding to the column pin 10 , and an oil cylinder 15 is arranged on the movable template 17 , and the oil cylinder 1...

Embodiment 2

[0022] see image 3 , is machined into a movable template 17, and the movable template 17 is provided with a movable mold driven cutting block 8, the movable mold driven cutting block 8 is connected with a cutting driving spring 6, and the movable mold driven cutting block 8 is provided with The condensate ejector 12 is connected with the condensate ejector baffle 11, and the condensate ejector 12 and the driven cutting block 8 of the movable mold are provided with a condensate ejector return spring 13, which is machined. The fixed template 2 is provided with a sprue sleeve 3 and a fixed mold driven cutting block 7 on the fixed template 2, the gate 4 is docked with the sprue sleeve 3, and a column pin 10 is arranged on the fixed mold driven cutting block 7 to drive The slide block 9 is provided with an oblique chute 16 corresponding to the column pin 10 , and an oil cylinder 15 is arranged on the fixed template 2 , and the oil cylinder 15 is connected with the driving slide bl...

Embodiment 3

[0025] see Figure 4 , machined into a movable template 17, a movable mold driven cutting block 8 is arranged on the movable template 17, and a condensate ejector pin 12 is arranged in the movable mold driven cutter 8, and the condensed material ejector rod 12 is connected with a condensed material Ejector baffle plate 11, condensed material ejector 12 and movable mold driven cutting block 8 are provided with condensed material ejector return spring 13, which is machined into fixed template 2, and sprue sleeve 3 is arranged on fixed template 2 And the fixed mold driven cutting block 7, the fixed mold driven cutting block 7 is connected with the cutting block driving spring 6, the gate 4 is connected with the sprue sleeve 3, and the movable template 17 is provided with an oil cylinder 15, and the oil cylinder 15 passes through the oil cylinder connecting rod 14 is connected with the wedge-shaped slider 18, and the wedge-shaped slider 18 forms a wedge-shaped surface with the mov...

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PUM

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Abstract

The invention discloses an in-mould multi-cavity shear gate mechanism, wherein, a movable template (17) is equipped with a moving die driven cut slice (8); the moving die driven cut slice (8) is internally equipped with an aggregate post rod (12), an aggregate post rod baffle plate (11) and an aggregate post rod return spring (13); a fixed template (2) is equipped with a sprue bush (3) and a fixed die driven cut slice (7); in the case of die closing, the fixed die driven cut slice (7) is aligned with the moving die driven cut slice (8) to form a runner, and the fixed die driven cut slice (7), the moving die driven cut slice (8) and cavity edges form a cutting edge; and the moving die driven cut slice (8) is connected with a drive unit, the fixed die driven cut slice (7) is connected with a cut slice driving spring (6) or the moving die driven cut slice (8) is connected with the cut slice driving spring (6), and the fixed die driven cut slice (7) is connected with a drive unit. The in-mould multi-cavity shear gate mechanism can simultaneously cut off products injected in one die with two cavities or one die with multiple cavities and runner aggregates.

Description

technical field [0001] The invention relates to a gate cutting mechanism for a plastic injection mold, in particular to a gate cutting mechanism for a mold with two cavities or a mold with multiple cavities and each cavity has a different shape. Background technique [0002] The existing plastic injection molds with side gate feeding form still connect with the flow channel aggregate after the product is formed, requiring manual separation, especially for molds with two cavities in one mold or multiple cavities in one mold with different shapes of cavities. The side gate cutting mechanism that can separate the cavity products of plastic injection from the flow channel aggregate at the same time has not been seen so far. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an in-mold multi-cavity gate cutting mechanism capable of simultaneously cutting off the injected product and the runner aggregate in a mold with tw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/38
Inventor 蒋炳炎袁理楚纯朋章孝兵
Owner CENT SOUTH UNIV