CN107160645B

CN107160645B - Large-angle inclined core-pulling and guide block synchronous floating core-pulling mechanism on side of cavity of injection mold

Info

Publication number: CN107160645B
Application number: CN201710566043.XA
Authority: CN
Inventors: 赖小强; 牟能杰
Original assignee: Binhai Moulds & Plastics Group Co ltd
Current assignee: Binhai Moulds & Plastics Group Co ltd
Priority date: 2017-07-12
Filing date: 2017-07-12
Publication date: 2023-04-07
Anticipated expiration: 2037-07-12
Also published as: CN107160645A

Abstract

The mechanism of loosing core, the synchronous unsteady core of guide block of loosing core of injection mold die cavity side wide-angle, including die cavity and core, there is injection moulding's working of plastics between die cavity and the core, the system has wide-angle oblique ascending chute, its characterized in that on the working of plastics: the die cavity under set up guide block, direction drag hook and guide pillar fixed block, it has distance groove and guiding hole to open in the guide block, set up the distance blind rivet in the distance groove, the guide block is connected with the die cavity through the distance blind rivet, set up to one side in the guiding hole and loose core, the one end of loosing core to one side cooperatees with the chute of working of plastics, another system of loosing core to one side has oblique spout, the system has oblique slide rail under the direction drag hook, oblique slide rail cooperatees with oblique spout, sets up oblique guide pillar in the guide pillar fixed block, the core on set up the slider, it has oblique guide hole to open in the slider, oblique guide hole cooperatees with oblique guide pillar, one side system of slider has the briquetting, the lateral wall of guide block is opened there is the spacing groove, the briquetting contacts with the spacing groove.

Description

Large-angle inclined core-pulling and guide block synchronous floating core-pulling mechanism on side of cavity of injection mold

Technical Field

The invention relates to an injection mold, in particular to a synchronous floating core-pulling mechanism of a large-angle inclined core-pulling and guide block at the side of a cavity of the injection mold.

Background

In injection mold, if the working of plastics is located the die cavity side system and has the ascending chute of wide-angle slope, prior art adopts the hydro-cylinder to take out to one side usually, because the angle of taking out to one side is big, the inclination that the hydro-cylinder set up will be unanimous with the angle of taking out to one side, thereby need to do the mould highly higher just can satisfy the hydro-cylinder and take out to one side, lead to the increase of volume of mould, the tonnage of injection molding machine has been increased, the development cost of mould has been improved, and behind the working of plastics injection moulding, will loose core with the hydro-cylinder earlier, the mould just can the die sinking, thereby production efficiency has been reduced.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides the injection mold cavity side large-angle inclined core pulling and guide block synchronous floating core pulling mechanism which is simple in structure, stable in core pulling action and reliable, reduces the mold volume, reduces the mold development cost, improves the production efficiency and is used for the injection mold.

The invention discloses a technical scheme of a large-angle inclined core-pulling and guide block synchronous floating core-pulling mechanism at the side of a cavity of an injection mold, which comprises the following steps: including die cavity and core, have injection moulding's working of plastics between die cavity and the core, the system has wide-angle inclined ascending chute, its characterized in that on the working of plastics: the die cavity under set up guide block, direction drag hook and guide pillar fixed block, it has distance groove and guiding hole to open in the guide block, set up the distance blind rivet in the distance groove, the guide block is connected with the die cavity through the distance blind rivet, set up to one side in the guiding hole and loose core, the one end of loosing core to one side cooperatees with the chute of working of plastics, another system of loosing core to one side has oblique spout, the system has oblique slide rail under the direction drag hook, oblique slide rail cooperatees with oblique spout, sets up oblique guide pillar in the guide pillar fixed block, the core on set up the slider, it has oblique guide hole to open in the slider, oblique guide hole cooperatees with oblique guide pillar, one side system of slider has the briquetting, the lateral wall of guide block is opened there is the spacing groove, the briquetting contacts with the spacing groove.

The invention discloses a large-angle inclined core pulling and guide block synchronous floating core pulling mechanism at the cavity side of an injection mold, when a plastic piece is subjected to injection molding, the mold is gradually opened from a cavity and a core, wherein a sliding block is fixed at one side of the core, a guide pull hook and a guide post fixing block are fixed with the cavity, when the mold is opened, the core moves downwards, the core drives the sliding block and the plastic piece to move downwards, a pressing block on the sliding block is clamped in a limiting groove of the guide block, so that the guide block is driven to float downwards together, the guide block drives an inclined core pulling to float downwards, the inclined core pulling follows the plastic piece to move downwards, the inclined slide rail under the guide pull hook is matched with an inclined slide groove of the inclined core pulling, when the inclined core pulling plastic piece floats downwards, the inclined core pulling moves along the inclined direction of the inclined slide rail, and simultaneously the inclined core pulling moves along the inclined direction of a guide hole in the guide block, so that the inclined core pulling can move downwards while the inclined core pulling is carried out when the mold is opened, and the inclined core pulling mechanism can stop the inclined core pulling movement of the guide pin and finally complete the mold opening. This scheme injection mold die cavity side wide-angle is loosed core to one side, the synchronous unsteady mechanism of loosing core of guide block, utilize the briquetting of slider tip to drive the guide block and loose core to one side and follow the working of plastics and float downwards when the die sinking, and make to one side loose core and remove along the oblique slide rail incline direction of direction drag hook simultaneously floating downwards, and remove along the incline direction of guiding hole, dual direction, make to one side loose core can deviate from the chute of the big angle on the working of plastics smoothly, save the hydro-cylinder structure, make whole mould compacter, the mould volume has been reduced, reduce mould development cost, and just can make to one side loose core and take out the chute in the die sinking, the time of die sinking is not taken, and the production efficiency is improved.

The invention relates to a large-angle inclined core-pulling and guide block synchronous floating core-pulling mechanism on the side of a cavity of an injection mold. The first spring is arranged, when the die is opened, the guide block is pressed by the pressing block on the sliding block, and meanwhile, the guide block is pushed downwards by the first spring, so that the guide block can float downwards along with the die core firstly when the die is opened, and the first spring is combined with the pressing block to push the guide block together, so that the guide block is stable and reliable in action. A second spring groove is formed in the sliding block, a second spring is arranged in the second spring groove, and one end of the second spring is in contact with the side wall of the guide block. When the die is opened, the inclined guide post drives the sliding block to slide outwards through the inclined guide hole, meanwhile, the second spring pushes the sliding block outwards, and the inclined guide post and the second spring drive the sliding block to move together, so that the movement of the inclined guide post is stable and reliable.

Drawings

FIG. 1 is a schematic structural diagram of a large-angle inclined core-pulling and guide block synchronous floating core-pulling mechanism on the side of a cavity of an injection mold;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a perspective view showing the guide block, the guide hook, the guide post fixing block, the inclined core pulling block and the slide block in an exploded state;

FIG. 4 is a schematic top view of the guide block;

fig. 5 is a schematic sectional view taken along line B-B of fig. 4.

Detailed Description

The invention relates to a synchronous floating core-pulling mechanism of a large-angle inclined core-pulling and guide block at the side of a cavity of an injection mold, which comprises a cavity 1 and a core 2, wherein an injection-molded plastic part 3 is arranged between the cavity and the core, and a large-angle inclined upward inclined groove 4 is formed on the plastic part, and is characterized in that: the die cavity 1 below set up guide block 5, direction drag hook 6 and guide pillar fixed block 7, set up distance groove 8 and guiding hole 9 in the guide block, set up distance blind rivet 10 in the distance groove, the guide block is connected with die cavity 1 through the distance blind rivet, set up oblique 11 in the guiding hole, one end of loosing core to one side cooperatees with chute 4 of working of plastics 3, another system of loosing core to one side has oblique spout 12, system has oblique slide rail 13 under direction drag hook 6, oblique slide rail cooperatees with oblique spout, set up oblique guide pillar 14 in guide pillar fixed block 7, core 2 on set up slider 15, it has oblique guide hole 16 to open in the slider, oblique guide hole cooperatees with oblique guide pillar 14, one side system of slider has briquetting 17, the lateral wall of guide block 5 is opened has spacing groove 18, the briquetting contacts with the spacing groove. After the plastic part 3 is injection molded, the mold is gradually opened from the cavity 1 and the core 2, wherein the slider 15 is fixed on one side of the core, the guide draw hook 6 and the guide post fixing block 7 are fixed with the cavity 1, when the mold is opened, the core 1 moves downwards, the core drives the slider 15 and the plastic part 3 to move downwards, the pressing block 17 on the slider is clamped in the limiting groove 18 of the guide block 5, so that the guide block is driven to float downwards together, the guide block drives the inclined loose core 11 to float downwards, the inclined loose core moves downwards along with the plastic part 3, the inclined slide rail 13 below the guide draw hook 6 is matched with the inclined slide groove 12 of the inclined loose core 11, when the inclined loose core floats downwards, the inclined loose core 11 moves along the inclined direction of the inclined slide rail 13 through the inclined slide groove 12, meanwhile, the inclined loose core 11 moves along the inclined direction of the guide hole 9 in the guide block 5, so that the inclined loose core can move downwards while opening is performed, the inclined loose core 4 of the mold can gradually while following the inclined loose core to move downwards, when the guide hole 16 of the slider 15 is matched with the inclined guide post 14 of the guide post 7, until the inclined loose core moves towards the end of the slider 15, the guide block 17, the inclined loose core moves outwards, and the guide block 18 of the guide draw block 5 and the guide block moves, and the guide draw out of the guide draw block to complete the mold. This scheme injection mold die cavity side wide-angle is loosed core to one side, the synchronous unsteady mechanism of loosing core of guide block, utilize briquetting 17 of 15 tip of slider to drive guide block 5 and loose core 11 to follow working of plastics 3 and float downwards to one side when the die sinking, and make 11 oblique slide rail 13 incline direction removal along direction drag hook 6 of loosing core simultaneously downwards, and remove along the incline direction of guiding hole 9, dual direction, make oblique loose core can deviate from the chute of the wide-angle on the working of plastics smoothly, save the hydro-cylinder structure, make whole mould compacter, the mould volume has been reduced, reduce mould development cost, and just can make 11 oblique pull core take out chute 4 in the die sinking, do not occupy the time of die sinking, and the production efficiency is improved.

Claims

1. Mechanism of loosing core, guide block synchronous unsteady loose core to one side of injection mold die cavity wide-angle, including die cavity (1) and core (2), have injection moulding's working of plastics (3) between die cavity and the core, the system has wide-angle slant ascending chute (4), its characterized in that on the working of plastics: the die cavity (1) under set up guide block (5), direction drag hook (6) and guide pillar fixed block (7), set up distance groove (8) and guiding hole (9) in the guide block, set up distance blind rivet (10) in the distance groove, the guide block is connected with die cavity (1) through the distance blind rivet, guide block (5) be located and made first spring groove (19) on distance groove (8), set up first spring (20) in the first spring groove, the upper end of first spring contacts with die cavity (1), set up oblique loose core (11) in the guiding hole, one end of loosing core to one side cooperatees with chute (4) of working of plastics (3), the head system of loosing core to one side has oblique spout (12), direction drag hook and guide pillar fixed block and die cavity remain stationary, another system has oblique slide rail (13) under direction drag hook (6), oblique slide rail cooperatees with oblique spout, set up oblique guide pillar (14) in guide pillar (7), core (2) on set up guide hole (15), open inclined slide rail (16) in the slider, oblique slide rail (14) and oblique briquetting (17) and spacing briquetting (17) one side system has spacing block and spacing briquetting (17) and spacing groove to one side matched with.

2. The mechanism of claim 1, wherein the mechanism comprises: a second spring groove (21) is formed in the sliding block (15), a second spring (22) is arranged in the second spring groove, and one end of the second spring is in contact with the side wall of the guide block (5).