CN212736909U

CN212736909U - Core-pulling and mold-stripping structure of injection mold

Info

Publication number: CN212736909U
Application number: CN202021292263.1U
Authority: CN
Inventors: 朱文亚
Original assignee: Suzhou Xinyou Mould Technology Co ltd
Current assignee: Suzhou Xinyou Mould Technology Co ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-03-19
Anticipated expiration: 2030-07-03

Abstract

The utility model provides an injection mold's knockout structure of loosing core, it includes the lower mould panel, the mould foot, the lower mould fixed plate, advancing mechanism and the mechanism of loosing core, the mould foot is 2 relative both sides on locating the lower mould panel, the lower mould fixed plate is located on the mould foot, it has back mould benevolence to inlay on the lower mould fixed plate, advancing mechanism includes the bottom plate, clip and push pedal, bottom plate sliding connection is between two mould feet, clip fixed connection bottom plate, and clip sliding connection is on the lower mould fixed plate, on the clip tip is located to the push pedal, and push pedal sliding connection is on the lower mould fixed plate, the mechanism of loosing core includes the hydro-cylinder, baffle and slider. The utility model discloses a horizontal effect of push pedal makes the product drop in the mould benevolence from the back earlier, and the mode of loosing core of reuse hydro-cylinder makes the product drop under the baffle effect, has avoided the direct hydro-cylinder to loose core the problem that the back product does not drop, guarantees that the product drawing of patterns is smooth and easy, has improved the stability of production processing procedure greatly, ensures injection-molded processing's continuity.

Description

Core-pulling and mold-stripping structure of injection mold

Technical Field

The utility model relates to an injection mold technical field particularly, relates to an injection mold's knockout structure of loosing core.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and accurate dimensions, and the injection molding is a processing method used for batch production of parts with complex shapes, in particular to a method for injecting heated and melted plastics into a mold cavity from an injection molding machine at high pressure and obtaining a formed product after cooling and solidification.

At present, after product injection moulding, it is ejecting from the mould with the product generally to use the thimble, but some products are higher to the requirement of outward appearance face, must use the mode of come-up loose core to unload, but some products are stress point card in back mould benevolence, and direct hydro-cylinder loose core back product does not drop, influences injection moulding next time, can't reach the effect that the mould set up in advance.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an injection mold's knockout structure of loosing core, it has solved among the prior art and has loosed core and unload the problem that the back product still blocked on the back mould benevolence.

Therefore, on the one hand, the utility model provides an injection mold's knockout structure of loosing core, it includes the lower mould panel, the mould foot, the lower mould fixed plate, advancing mechanism and the mechanism of loosing core, the mould foot is 2 relative both sides on locating the lower mould panel, the lower mould fixed plate is located on the mould foot, it has back mould benevolence to inlay on the lower mould fixed plate, advancing mechanism includes the bottom plate, clip and push pedal, bottom plate sliding connection is between two mould feet, clip fixed connection bottom plate, and clip sliding connection is on the lower mould fixed plate, the push pedal is located on the clip tip, and push pedal sliding connection is on the lower mould fixed plate, the mechanism of loosing core includes the hydro-cylinder, baffle and slider, the hydro-cylinder is located on the lower mould fixed plate, baffle fixed connection push pedal, the slider is located on the flexible end of hydro.

Furthermore, the push plate is provided with a first sliding groove, and the sliding block is connected in the first sliding groove in a sliding manner.

Furthermore, the baffle is provided with a second sliding groove, the sliding block is provided with a core, the core is connected in the second sliding groove in a sliding manner, and the core is connected on the side wall of the rear mold core in a sliding manner.

Furthermore, the bottom of the push plate is slidably connected to the top of the rear mold core, and the bottom of the baffle is slidably connected to the top of the rear mold core.

Furthermore, the opening of the second sliding chute is provided with a profile groove.

The utility model provides an injection mold's knockout of loosing core structure in, adopt the back needle to promote the push pedal and slide, the push pedal area baffle and slider together remove, make the core on product and the slider together break away from back mould benevolence, loose core the effect through the hydro-cylinder and make the slider slide along the push pedal, the core slides along the baffle simultaneously, and the profile groove is spacing to the product, makes the product take off from the core.

Therefore, the utility model discloses compare in prior art and have following beneficial effect:

the transverse action through the push pedal makes the product drop in the mould benevolence from the back earlier, and the mode of loosing core of reuse hydro-cylinder makes the product drop under the baffle effect, has avoided the problem that the direct hydro-cylinder product of loosing core did not drop, guarantees that the product drawing of patterns is smooth and easy, has improved the stability of production processing procedure greatly, ensures injection moulding's continuity.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic view of an internal structure of a core-pulling and mold-stripping structure of an injection mold according to an embodiment of the present invention;

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

fig. 3 is an internal schematic diagram of the core-pulling and mold-stripping structure of the injection mold according to the embodiment of the present invention.

Wherein, 1-lower die panel; 2-a mould leg; 3-fixing the lower die; 4-a propulsion mechanism; 41-a bottom plate; 42-back stitching; 43-push plate; 5-a core-pulling mechanism; 51-oil cylinder; 52-a baffle; 53-a slide block; 6-rear mold core; 7-a first chute; 8-a second chute; 9-a core; 10-a contour groove.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Referring to fig. 1 to 3, this embodiment provides a core-pulling and mold-stripping structure of an injection mold, wherein a lower mold panel 1, mold legs 2, a lower mold fixing plate 3, a pushing mechanism 4 and a core-pulling mechanism 5 are firstly disposed, 2 mold legs 2 are disposed on two opposite sides of the lower mold panel 1, the lower mold fixing plate 3 is disposed on the mold legs 2, a rear mold core 6 is inlaid on the lower mold fixing plate 3, the pushing mechanism 4 includes a bottom plate 41, a return pin 42 and a push plate 43, the bottom plate 41 is slidably connected between the two mold legs 2, the return pin 42 is fixedly connected to the bottom plate 41, the return pin 42 is slidably connected to the lower mold fixing plate 3, the push plate 43 is disposed on an end of the return pin 42, the push plate 43 is slidably connected to the lower mold fixing plate 3, the core-pulling mechanism 5 includes an oil cylinder 51, a baffle 52 and a slide block 53, the oil cylinder 51 is disposed on the lower mold fixing plate 3, and the slider 53 is slidably coupled within the shutter 52.

Referring to fig. 1 to 3, specifically, the push plate 43 has a first sliding groove 7, the sliding block 53 is slidably connected in the first sliding groove 7, the baffle plate 52 has a second sliding groove 8, the sliding block 53 has a core 9, the core 9 is slidably connected in the second sliding groove 8, the core 9 is slidably connected to a side wall of the rear mold core 6, the bottom of the push plate 43 is slidably connected to the top of the rear mold core 6, the bottom of the baffle plate 52 is slidably connected to the top of the rear mold core 6, and an opening of the second sliding groove 8 has a contour groove 10.

When in use, firstly, the bottom plate 41 is pushed, the push plate 43 moves together with the bottom plate 41 under the transmission of the return pin 42, the push plate 43 moves along the top surface of the rear mold core 6 and the top surface of the lower mold fixing plate 3, the baffle plate 52 and the slide block 53 slide together with the push plate 43, the core 9 pushes the product away from the rear mold core 6, the product taking-out in the first stage is completed, secondly, the oil cylinder 51 is lifted to pull the core 9 to slide in the second sliding groove 8, and simultaneously the slide block 53 slides along the first sliding groove 7, when a product touches the contour groove 10 on the baffle plate 52, the product falls off the core 9 to complete the demoulding of the product, finally, the oil cylinder 51 descends to push the core 9 to slide in the second chute 8 and on the side surface of the rear mould core 6, after the slide block 53 is reset, the bottom plate 41 is pulled backwards, under the drive of the return pin 42, the baffle plate 52 and the slide block 53 slide together with the push plate 43, and the resetting of the core-pulling mold-stripping structure is completed.

In the loose core demolding structure of the injection mold provided by the embodiment, the return needle is adopted to push the push plate to slide, the push plate drives the baffle and the slide block to move together, so that the product and the core on the slide block are separated from the back mold core together, the slide block slides along the push plate under the core pulling action of the oil cylinder, meanwhile, the core slides along the baffle, the profiling groove is limited to the product, and the product is separated from the core.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides an injection mold's knockout structure of loosing core, its characterized in that, includes lower mould panel (1), mould foot (2), lower mould fixed plate (3), advancing mechanism (4) and mechanism of loosing core (5), mould foot (2) are 2 to be located relative both sides on lower mould panel (1), lower mould fixed plate (3) are located on mould foot (2), it has back mould benevolence (6) to inlay on lower mould fixed plate (3), advancing mechanism (4) include bottom plate (41), clip (42) and push pedal (43), bottom plate (41) sliding connection is in two between mould foot (2), clip (42) fixed connection bottom plate (41), and clip (42) sliding connection is in on lower mould fixed plate (3), push pedal (43) are located on clip (42) tip, and push pedal (43) sliding connection is in on lower mould fixed plate (3), the core pulling mechanism (5) comprises an oil cylinder (51), a baffle (52) and a sliding block (53), wherein the oil cylinder (51) is arranged on the lower die fixing plate (3), the baffle (52) is fixedly connected with the push plate (43), the sliding block (53) is arranged on the telescopic end of the oil cylinder (51), and the sliding block (53) is connected in the baffle (52) in a sliding mode.

2. The core pulling and mold stripping structure of an injection mold according to claim 1, characterized in that the push plate (43) is provided with a first sliding groove (7), and the sliding block (53) is slidably connected in the first sliding groove (7).

3. The core pulling and mold stripping structure of an injection mold according to claim 1, characterized in that the baffle (52) is provided with a second chute (8), the slide block (53) is provided with a core (9), the core (9) is slidably connected in the second chute (8), and the core (9) is slidably connected on the side wall of the rear mold core (6).

4. The core pulling and mold stripping structure of an injection mold according to claim 1, characterized in that the bottom of the push plate (43) is slidably connected to the top of the rear mold core (6), and the bottom of the baffle plate (52) is slidably connected to the top of the rear mold core (6).

5. The core pulling and demolding structure of an injection mold according to claim 3, characterized in that the opening of the second sliding chute (8) is provided with a contour groove (10).