Chair foot upwarp rod type core loosing and mold locking mechanism of plastic chair mold

A technology of chair foot and core lock, which is applied in the field of plastic chair mold chair foot lever type core-pulling mold locking mechanism, which can solve problems such as complex structure and achieve the effects of ensuring injection molding quality, smooth demoulding, and preventing mold expansion

Active Publication Date: 2016-10-12
TAIZHOU HUANGYAN HANWEI PLASTIC MOLD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mold clamping of the lower two chair legs usually adopts a slider structure, which is complex in structure

Method used

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  • Chair foot upwarp rod type core loosing and mold locking mechanism of plastic chair mold
  • Chair foot upwarp rod type core loosing and mold locking mechanism of plastic chair mold
  • Chair foot upwarp rod type core loosing and mold locking mechanism of plastic chair mold

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Embodiment Construction

[0010] The present invention relates to a plastic chair mold chair foot lift rod type core-pulling mold locking mechanism, such as figure 1 — Figure 4 As shown, it includes mold movable template 1 and fixed mold plate 2, sprue plate 3 is installed on fixed template, chair seat back insert 4 is installed in movable template 1, and chair seat back insert 4 is installed on movable template 1 and chair seat back insert 4. The seat foot insert 5, the backrest insert 6 is installed in the fixed formwork, the backrest insert 6 cooperates with the chair seat back insert 4 to form a chair back mold cavity, and the chair back mold cavity is injection-molded with the chair back 10, and the chair seat The back insert 4 cooperates with the seat foot insert 5 to form a seat mold cavity, the seat base 11 is injection molded in the seat mold cavity, and the top surface and the bottom surface of the chair seat foot insert 5 are respectively connected to the fixed mold plate 2 and the bottom s...

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PUM

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Abstract

The invention relates to a chair foot upwarp rod type core loosing and mold locking mechanism of a plastic chair mold. The mechanism comprises a moving mold plate and a fixed mold plate, wherein a sprue plate is mounted on the fixed mold plate, chair seat and chair back insert blocks are mounted in the moving mold plate, chair seat and chair foot insert blocks are arranged on the moving mold plate and the chair seat and chair back insert blocks, a backrest insert block is mounted in the fixed mold plate, an upper mold locking lug is arranged on an upper core loosing slide block, one end of a mold locking rod is matched with the mold locking lug, an ejector pin is mounted on the external wall of the moving mold plate and jacks the downside of the other end of the mold locking rod, a compression spring is arranged in the sprue plate, a pressure lever penetrates through the compression spring and is inserted into the other end of the mold locking rod, and the compression spring presses the upside of the other end of the mold locking rod; a lower mold locking lug is arranged on a lower core loosing slide block, a lower mold locking groove is formed in the moving mold plate, the lower mold locking lug is matched with the lower mold locking groove, and a mold opening cylinder is mounted on side walls of the chair seat and chair foot insert blocks and is connected with the fixed mold plate. The simultaneous core loosing and demolding of upper and lower core loosing rods are achieved by combining secondary mold opening and upwarp rod type demolding, so that the product quality is good, and the production efficiency is high.

Description

technical field [0001] The invention relates to a plastic chair mold chair leg-upper-rod type core-pulling mold locking mechanism, which belongs to the field of injection molds. Background technique [0002] Plastic products such as plastic chairs are produced using injection molds. There are many types of plastic chairs, and the specific structures are also different. When producing a plastic chair with a hollow leg and a rattan seat, core pulling is required for demoulding the hollow leg, and core pulling is also required for demoulding the rattan seat, and the core pulling of the leg is generally done in the mold Finished before mold opening to ensure stable core pulling. However, in actual production, due to the large volume of the plastic chair mold and the high injection pressure, the core-pulling cylinder of the hollow chair leg is under great pressure, which is prone to mold expansion, so it is necessary to set the mold locking mechanism on the chair leg core-pulli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/33B29C45/67
CPCB29C45/33B29C45/67
Inventor 王金满
Owner TAIZHOU HUANGYAN HANWEI PLASTIC MOLD
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