CN216329809U

CN216329809U - Front mould large-stroke double-oil-cylinder side core-pulling mechanism

Info

Publication number: CN216329809U
Application number: CN202122715451.1U
Authority: CN
Inventors: 杨国润
Original assignee: Kunshan Goldberry Electronics Co ltd
Current assignee: Kunshan Goldberry Electronics Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-04-19
Anticipated expiration: 2031-11-08

Abstract

The utility model discloses a front mould large-stroke double-oil-cylinder side core-pulling mechanism, which comprises: transversely arranged's first hydro-cylinder, first slider and slider seat, first slider fixed mounting be in on the slider seat, the slider seat with the piston rod of first hydro-cylinder is connected, hold-down mechanism is installed to one side of slider seat, hold-down mechanism includes vertically arranged second hydro-cylinder and a vertically slidable second slider, the second slider with the piston rod of second hydro-cylinder is connected, a terminal surface of slider seat supports and leans on the second slider, the second hydro-cylinder can drive the second slider rebound is right the slider seat has the orientation the effort of first slider. According to the front-die large-stroke double-oil-cylinder side core-pulling mechanism, the first oil cylinder and the second oil cylinder are jointly driven, so that the die locking force of the first sliding block and the reliability and stability of the front-die large-stroke double-oil-cylinder side core-pulling mechanism in a die closing state are greatly improved, and the product quality is effectively guaranteed.

Description

Front mould large-stroke double-oil-cylinder side core-pulling mechanism

Technical Field

The utility model relates to the technical field of injection molds, in particular to a front mold large-stroke double-oil-cylinder side core-pulling mechanism.

Background

The injection mold is a common mold for molding plastic products, and the plastic products with various forms can be molded through the injection mold so as to meet various requirements of people.

At present, to the injection mold who does the side structure of loosing core on the front mould in needs, glue the position area great and need when the long stroke is loosed core when product back-off, often can appear the situation that the mold locking power is not enough, lead to the product of moulding plastics to have easily to drape over one's hair, product glue thick increase, size unsatisfied bad problems such as requirement, and then can't ensure product quality. Accordingly, there is a need for improvements in the art that overcome the deficiencies in the prior art.

Disclosure of Invention

The utility model aims to solve the problem of providing a front mould large-stroke double-oil-cylinder side core-pulling mechanism so as to overcome the defects that in the prior art, the injection-molded product has a plurality of bad problems and the product quality cannot be ensured due to insufficient mold locking force.

The technical scheme adopted by the utility model for solving the technical problem is as follows: the utility model provides a big stroke double cylinder side core pulling mechanism of front mould, includes: the first sliding block is fixedly arranged on the sliding block seat, and the sliding block seat is connected with a piston rod of the first oil cylinder; one side of the sliding block seat is provided with a pressing mechanism, the pressing mechanism comprises a second oil cylinder and a second sliding block, the second oil cylinder is longitudinally arranged, the second sliding block can longitudinally slide, the second sliding block is connected with a piston rod of the second oil cylinder, one end face of the sliding block seat is abutted to the second sliding block, and the second oil cylinder can drive the second sliding block to move upwards and face the sliding block seat to have acting force towards the first sliding block.

As a further improvement of the utility model, the second sliding block is in a wedge shape with a narrow top and a wide bottom, and is provided with a first inclined surface opposite to the sliding block seat, and the sliding block seat is provided with a second inclined surface matched with the first inclined surface.

As a further improvement of the utility model, the second sliding block is fixedly provided with a wear-resisting plate on the first inclined surface.

As a further improvement of the utility model, the front-die large-stroke double-oil-cylinder side core pulling mechanism further comprises a first fixed block and a second fixed block which are arranged on the front die, a first accommodating cavity is formed in the first fixed block, the sliding block seat is arranged in the first accommodating cavity in a sliding manner, and the first oil cylinder is fixedly arranged on the outer side of the first fixed block; the second fixed block sets up the bottom of first fixed block, and have with the second holding chamber of first holding chamber intercommunication, the second slider slides and arranges in first holding chamber with between the second holding chamber, the second hydro-cylinder is fixed to be installed the bottom of second fixed block.

As a further improvement of the present invention, the second slider is provided with an avoiding groove along the top, the piston rod of the first cylinder is connected with the slider seat through a core-pulling connecting rod, and the core-pulling connecting rod is inserted in the avoiding groove.

As a further improvement of the present invention, the second accommodating cavity is provided with longitudinally arranged guide rails at both sides of the second slider, and the second slider is slidably fitted on the guide rails through a sliding groove provided thereon.

As a further improvement of the utility model, the second sliding block is fixedly provided with an identification rod, and the lower end of the identification rod penetrates through and is exposed out of the bottom of the second fixed block.

As a further improvement of the utility model, the two sides of the sliding block seat are respectively provided with a guide block along the core pulling direction, and the sliding block seat is connected with the two guide blocks in a sliding fit manner.

The utility model has the beneficial effects that: the utility model provides a front-die large-stroke double-oil-cylinder side core pulling mechanism which is provided with double oil cylinders, wherein the first oil cylinder is used for driving a first slide block to complete core pulling and mold closing actions, the second oil cylinder is used for driving a second slide block to generate pressure on the first slide block, and further under the common driving of the first oil cylinder and the second oil cylinder, the mold locking force on the first slide block and the reliability and stability in a mold closing state are greatly improved, the front-die large-stroke double-oil-cylinder side core pulling mechanism can be suitable for forming products with large front-die core pulling strokes and large undercut glue bit surfaces, the appearance defects of burrs, glue thickness increase and the like of the products are effectively avoided, and the product quality is ensured.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is a cross-sectional view in another direction of the present invention.

The following description is made with reference to the accompanying drawings:

1-a first cylinder; 2-first slider;

3-sliding block seat; 4-a second oil cylinder;

5-second slider; 501-avoidance slot;

502-chute; 6-wear plate;

7-first fixed block; 8-a second fixed block;

9-core pulling connecting rod; 10-guide rail;

11-identification rod; 12-guide block.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 3, the utility model provides a front mold large-stroke double-cylinder side core pulling mechanism, which is installed on a front mold of an injection mold and used for performing side core pulling to separate from a product back-off position before the front mold and the rear mold are opened.

Referring to fig. 1, the large-stroke double-cylinder side core-pulling mechanism of the front mold comprises: the first oil cylinder 1, the first sliding block 2, the sliding block seat 3 and the first fixing block 7 are transversely arranged, the first fixing block 7 is fixed on the front die, a first containing cavity is formed in the first fixing block 7, the sliding block seat 3 is arranged in the first containing cavity and can transversely slide, the first sliding block 2 is fixedly installed on the sliding block seat 3, and one end of the first sliding block extends into the cavity and is used for the back-off position on a formed product. First hydro-cylinder 1 is fixed to be installed in the left side of first fixed block 7, and the piston rod of first hydro-cylinder 1 stretches into first holding intracavity and is connected with slider seat 3 through connecting rod 9 of loosing core, and first hydro-cylinder 1 can drive slider seat 3 and drive 2 lateral shifting of first slider and loose core.

Referring to fig. 2 and 3, a pressing mechanism is mounted on the left side of the slider seat 3, and the pressing mechanism includes a second oil cylinder 4 arranged longitudinally and a second slider 5 capable of sliding longitudinally. The bottom that lies in first fixed block 7 on the front mould is fixed mounting still has second fixed block 8, and second fixed block 8 has the second holding chamber with first holding chamber intercommunication, and second slider 5 slides and arranges in between first holding chamber and the second holding chamber, and second hydro-cylinder 4 is fixed to be installed in the bottom of second fixed block 8, and the piston rod of second hydro-cylinder 4 stretches into the second holding intracavity and is connected with second slider 5 through another connecting rod of loosing core 9. The second sliding block 5 is in a wedge shape with a narrow upper part and a wide lower part, and is provided with a first inclined surface opposite to the sliding block seat 3, and the sliding block seat 3 is provided with a second inclined surface which has the same inclination with the first inclined surface and is mutually abutted. Second hydro-cylinder 4 can drive second slider 5 and upwards remove, under the first inclined plane through second slider 5 mutually supported with the second inclined plane of take-up housing 3, make second slider 5 have the pressure towards first slider 2 to take-up housing 3, and then under the common drive of first hydro-cylinder 1 with second hydro-cylinder 4, the mold locking power to first slider 2 has been improved greatly, promote the reliability and the stability of first slider 2 at the compound die state, avoid appearing the flash, bad defects such as thick increase of glue, make the product quality obtain effective guarantee.

Referring to fig. 1, the front mold is provided with guide blocks 12 at the front and rear sides of the slider seat 3 along the core pulling direction, and the slider seat 3 is connected with the two guide blocks 12 in a sliding fit manner, so that the stability of the slider seat 3 during sliding is improved, and the mechanism is suitable for a core pulling mechanism with a large stroke.

Referring to fig. 2, the wear-resisting plate 6 is fixedly mounted on the first inclined plane of the second slider 5, so that wear between the second slider 5 and the slider seat 3 can be effectively reduced, and the service life of the mold can be prolonged.

Referring to fig. 3, the second slider 5 is provided with an avoiding groove 501 along the top, and the core-pulling connecting rod 9 connected to the piston rod of the first cylinder 1 penetrates through the avoiding groove 501, so that the second slider 5 avoids the core-pulling connecting rod 9 when sliding up and down, thereby avoiding interference. Wherein, the guide rail 10 of longitudinal arrangement is all installed to both sides around being located second slider 5 in the second holding intracavity, and both sides all are provided with the spout 502 that matches with guide rail 10 around second slider 5, are connected through this spout 502 and guide rail 10 sliding fit, and then lead to the longitudinal movement of second slider 5, improve the stability of its motion. It is worth mentioning that, fixed mounting has a vertical sign pole 11 on the second slider 5, and the lower extreme of sign pole 11 runs through and exposes in the bottom of second fixed block 8, through observing the length that sign pole 11 stretches out second fixed block 8 to the operation personnel judge the position of second slider 5, avoid appearing the maloperation.

The core pulling process of the embodiment is as follows: firstly, a second oil cylinder 4 pulls a second sliding block 5 to move downwards, so that the second sliding block 5 is separated from a sliding block seat 3, and an avoidance space is provided for the core-pulling movement of the first sliding block 2; and then, the first oil cylinder 1 pulls the sliding block seat 3 to drive the first sliding block 2 to move towards the outer side, so that the first sliding block 2 is separated from the back-off glue position surface on the product, and the core pulling action is completed.

Therefore, the front-die large-stroke double-oil-cylinder side core pulling mechanism is provided with the double oil cylinders, the first oil cylinder is used for driving the first sliding block to complete core pulling and mold closing actions, the second oil cylinder is used for driving the second sliding block to generate pressure on the first sliding block, and further under the common driving of the first oil cylinder and the second oil cylinder, the mold locking force on the first sliding block and the reliability and stability in a mold closing state are greatly improved, the front-die large-stroke double-oil-cylinder side core pulling mechanism can be suitable for forming products with large front-die core pulling strokes and large undercut glue position surfaces, the defects of burrs, glue thickness increase and the like of the products are effectively avoided, and the product quality is guaranteed.

In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the present invention. The foregoing description is only a preferred embodiment of the utility model, which can be embodied in many different forms than described herein, and therefore the utility model is not limited to the specific embodiments disclosed above. And that those skilled in the art may, using the methods and techniques disclosed above, make numerous possible variations and modifications to the disclosed embodiments, or modify equivalents thereof, without departing from the scope of the claimed embodiments. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a big stroke double-cylinder side core pulling mechanism of front mould, includes transverse arrangement's first hydro-cylinder (1), first slider (2) and take-up housing (3), first slider (2) fixed mounting be in on take-up housing (3), take-up housing (3) with the piston rod of first hydro-cylinder (1) is connected, its characterized in that: one side of the sliding block seat (3) is provided with a pressing mechanism, the pressing mechanism comprises a second oil cylinder (4) which is longitudinally arranged and a second sliding block (5) which can longitudinally slide, the second sliding block (5) is connected with a piston rod of the second oil cylinder (4), one end face of the sliding block seat (3) is abutted against the second sliding block (5), and the second oil cylinder (4) can drive the second sliding block (5) to move upwards and face the sliding block seat (3) with acting force towards the first sliding block (2).

2. The front mold large-stroke double-oil-cylinder side core pulling mechanism as claimed in claim 1, characterized in that: the second sliding block (5) is wedge-shaped with a narrow upper part and a wide lower part and is provided with a first inclined surface opposite to the sliding block seat (3), and the sliding block seat (3) is provided with a second inclined surface matched with the first inclined surface.

3. The front mold large-stroke double-oil-cylinder side core pulling mechanism as claimed in claim 2, characterized in that: and the second sliding block (5) is positioned on the first inclined plane and is fixedly provided with a wear-resisting plate (6).

4. The front mold large-stroke double-oil-cylinder side core pulling mechanism as claimed in claim 1, characterized in that: the front die is characterized by further comprising a first fixing block (7) and a second fixing block (8) which are arranged on the front die, a first accommodating cavity is formed in the first fixing block (7), the sliding block seat (3) is arranged in the first accommodating cavity in a sliding mode, and the first oil cylinder (1) is fixedly arranged on the outer side of the first fixing block (7); the second fixed block (8) is arranged at the bottom of the first fixed block (7) and is provided with a second accommodating cavity communicated with the first accommodating cavity, the second sliding block (5) is arranged between the first accommodating cavity and the second accommodating cavity in a sliding mode, and the second oil cylinder (4) is fixedly arranged at the bottom of the second fixed block (8).

5. The front mold large-stroke double-oil-cylinder side core pulling mechanism as claimed in claim 4, characterized in that: the second sliding block (5) is provided with an avoiding groove (501) along the top, a piston rod of the first oil cylinder (1) is connected with the sliding block seat (3) through a core-pulling connecting rod (9), and the core-pulling connecting rod (9) penetrates through the avoiding groove (501).

6. The front mold large-stroke double-oil-cylinder side core pulling mechanism as claimed in claim 4, characterized in that: and guide rails (10) which are longitudinally arranged are arranged on two sides of the second sliding block (5) in the second accommodating cavity, and the second sliding block (5) is in sliding fit on the guide rails (10) through a sliding groove (502) arranged on the second sliding block.

7. The front mold large-stroke double-oil-cylinder side core pulling mechanism as claimed in claim 4, characterized in that: and a mark rod (11) is fixedly mounted on the second sliding block (5), and the lower end of the mark rod (11) penetrates through and is exposed out of the bottom of the second fixing block (8).

8. The front mold large-stroke double-oil-cylinder side core pulling mechanism as claimed in claim 1, characterized in that: the sliding block seat is characterized in that guide blocks (12) are arranged on two sides of the sliding block seat (3) along the core pulling direction, and the sliding block seat (3) is connected with the two guide blocks (12) in a sliding fit mode.