Automatic break injection mold when side runner fuses

A technology of automatic cutting and side gate, which is applied in the field of plastic injection molds, can solve the problem of easy scars on the shear gate, achieve the effect of highlighting substantive features, reducing labor intensity and improving production efficiency

Inactive Publication Date: 2008-10-22
李岳桥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to overcome the deficiencies of the above-mentioned prior art, to provide a plastic injection mold that automatically cuts off the plastic injection mold when the side gate that separates the injection product from the runner in the molten stat

Method used

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  • Automatic break injection mold when side runner fuses
  • Automatic break injection mold when side runner fuses
  • Automatic break injection mold when side runner fuses

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0050] Example 1

[0051] Refer to Figure 1, when the side gate is melted, the injection mold is automatically cut off, including the movable mold bottom plate 1, two mold feet 3, cavity B plate 9, cavity A plate 19, fixed mold bottom plate 20, gate sleeve 21, and female mold Insert 18, male mold insert 11, large guide post 10, large guide sleeve 28, discharge plate 30, discharge plate reset rod 27, discharge plate return spring 31, ejector rod 29, and small guide column 4.

[0052] The two mold feet 3 are fixedly installed on both sides of the movable mold bottom plate 1 by fasteners, and the cavity B plate 9 is also fixedly installed on the two mold feet 3 by fasteners; a number of mold feet 3 are installed on the cavity B plate 9 Large guide post 10. The cavity A plate 19 is installed on the fixed mold bottom plate 20 by fasteners, the large guide sleeve 28 is installed in the cavity A plate 19, the large guide post 10 is inserted into the large guide sleeve 28, and the two are...

Example Embodiment

[0064] Example 2

[0065] See Figure 8 and Figure 9, Picture 10 The difference between Embodiment 2 and Embodiment 1 is that the pushing mechanism is different, and the rest are the same. The pushing mechanism of this embodiment includes a mounting plate 221 installed on the bottom plate 1 of the movable mold. The mounting plate 221 is provided with a bearing 224. The two ends of the camshaft 222 are respectively installed in the bearing 224, and each camshaft 222 is mounted with an eccentric Cam 223, a stepping motor 225 is installed on a mounting plate 22, a driving sprocket 226 is sleeved on the output shaft of the stepping motor 225, and a driven sprocket 227 is installed at the end of each camshaft 222 A synchronization chain 228 surrounds the driving sprocket 226 and the driven sprocket 227. The stepping motor 225 is connected with and controlled by the computer console of the injection machine.

[0066] When the mold is closed and filled and the pressure-holding plastic is...

Example Embodiment

[0068] Example 3

[0069] See Picture 11 with Picture 12 The difference between the third embodiment and the second embodiment is that the stepping motor 221 in the pushing mechanism is replaced by an oil cylinder 343 and a rack 345, and the rest is the same as the first embodiment. The pushing mechanism of this embodiment includes a mounting plate 221 mounted on the bottom plate 1 of the movable mold. Both ends of the camshaft 222 are provided on two mounting plates 22 through bearings 224. An eccentric cam 223 is mounted on each camshaft 222. A driven sprocket 227 is installed at the shaft end of each camshaft 222, and a synchronization chain 228 is surrounded by the two driven sprocket 227. A gear 346 is installed on the shaft end of a camshaft 222, an oil cylinder 343 is installed on a mounting plate 221, and a rack 345 is installed on the piston 344 of the oil cylinder 343, and the rack 345 meshes with the gear 346. The oil cylinder 343 is supplied with oil by an oil pump c...

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PUM

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Abstract

The invention relates to an automatic cutting off injection mould when melting a lateral pouring head. The automatic cutting off injection mould when melting a lateral pouring head also includes a pouring head cutting mechanism used for cutting off the pouring head under the melting state. The invention also includes a structure for holding the melting material of the pouring head; compared with the prior art, the invention has excellent practical characteristics and advancements. When a cutting top needle in the pouring head cutting mechanism cuts off the melting pouring head under pressure maintaining, a lateral slide block of the structure for holding the melting material of the pouring head moves to lead an abdicating insert of the structure for holding the melting material of the pouring head to make room for holding the melting material at the location of the pouring head. The mould of the invention realizes cutting off the pouring head automatically when a product and the pouring head are not solidified, thus reducing the working intensity of workers, improving the manufacture efficiency and solving the problem that the traditional pouring heads have scars after being cut off after being solidified to affect the appearance.

Description

technical field [0001] The invention relates to the technical field of plastic injection moulds, in particular to an injection mold which automatically cuts off the gate in the form of side gate feeding in a pressure-maintenance and molten state. Background technique [0002] At present, the plastic injection mold in the form of side gate feeding, the runner is still connected with the product after injection molding, and manual or thermal shearing equipment is required to separate the product from the runner. This type of mold has high labor intensity and low production efficiency. The cutout of the product is unsightly, and an injection mold that can automatically cut the side gate when the product is molten and under pressure has never been seen. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, to provide a plastic injection mold that automatically cuts off the plastic injection mol...

Claims

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Application Information

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IPC IPC(8): B29C45/26B29C45/38B29C45/27B29C45/73B29C45/40
Inventor 李岳桥粟仁军彭红军陈铁庚蒋龙
Owner 李岳桥
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