CN212826599U

CN212826599U - Injection mold

Info

Publication number: CN212826599U
Application number: CN202021626143.0U
Authority: CN
Inventors: 徐敏; 邓石明
Original assignee: Foshan Nanhai Yuyang Plastic Mould Co ltd
Current assignee: Foshan Yuyang Medical Instrument Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-03-30
Anticipated expiration: 2030-08-07

Abstract

The utility model provides an injection mold, including upper die and lower mould, the upper die is equipped with the watering mouth, the lower mould top surface is equipped with lower core and two movable slide of symmetrical arrangement in lower core both sides, the upper die bottom surface is equipped with the upper core that matches with lower core and two support pieces of symmetrical arrangement in upper core both sides, wherein, the lateral wall of two movable slide, the bottom surface of upper core and the top surface of lower core enclose into to have at least one shaping die cavity jointly, watering mouth communicates with each other with the shaping die cavity through some runners of lower core shaping; sliding blocks which can be close to or far away from the lower core are arranged on the two movable sliding seats in a sliding mode, the two abutting blocks are respectively abutted and matched with the two sliding blocks, and the sliding blocks are driven to transversely slide in a reciprocating mode along with the up-and-down movement of the abutting blocks; the sliding block is fixedly provided with at least one die core part, and the end part of the die core part horizontally extends to penetrate through the movable sliding seat and extend into the forming cavity.

Description

Injection mold

Technical Field

The utility model belongs to the technical field of injection mold's technique and specifically relates to indicate an injection mold.

Background

Referring to the schematic diagram of a lid workpiece shown in fig. 1, the lid workpiece is a block-shaped structure and has an inner cavity with an open side, when the existing injection mold is used for injection molding of such a workpiece, the inner cavity has a poor molding effect and a large demolding difficulty, and a suitable injection mold is lacked.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art, an injection mold.

In order to achieve the purpose, the utility model provides an injection mold, including upper die and lower mould, the upper die is equipped with the pouring nozzle, the lower mould top surface is equipped with lower core and two movable slides symmetrically arranged on the lower core both sides, wherein, be provided with compression spring between movable slide bottom surface and the lower mould top surface, the upper die bottom surface is equipped with the upper core that matches with lower core and two holding pieces symmetrically arranged on the upper core both sides, wherein, the lateral wall of two movable slides, the bottom surface of upper core and the top surface of lower core enclose into together and have at least one shaping die cavity, the pouring nozzle communicates with the shaping die cavity through the runner that lower core was formed; sliding blocks which can be close to or far away from the lower core are arranged on the two movable sliding seats in a sliding mode, the two abutting blocks are respectively abutted and matched with the two sliding blocks, and the sliding blocks are driven to transversely slide in a reciprocating mode along with the up-and-down movement of the abutting blocks; the sliding block is fixedly provided with at least one die core part, and the end part of the die core part horizontally extends to penetrate through the movable sliding seat and extend into the forming cavity.

Further, every shaping die cavity is including the last type groove of shaping in last core bottom surface and the lower type groove of shaping in lower core top surface, go up type groove and lower type groove and all extend towards the activity slide lateral wall direction that closes on mutually.

Furthermore, the two sides of the upper die are provided with oblique guide posts which are inclined downwards and extend to the bottom surface of the upper die, the sliding block is formed with guide post holes corresponding to the oblique guide posts, and the oblique guide posts reciprocate up and down along with the upper die to drive the sliding block to transversely slide in a reciprocating manner.

Furthermore, one end of the abutting block is provided with an abutting inclined surface, one end of the sliding block, which corresponds to the abutting inclined surface, is provided with a sliding inclined surface, and the sliding inclined surfaces are pressed and driven by the abutting inclined surfaces so that the two sliding blocks slide oppositely.

Furthermore, the movable sliding seat is formed with a sliding groove extending along the transverse direction, and the sliding block is formed with a wedge-shaped sliding block connected with the sliding groove in a sliding mode.

The utility model adopts the above technical scheme, its beneficial effect lies in: the mold core part is adopted to extend into the molding cavity, so that the materials are subjected to injection molding in a gap space between the mold core part and the inner wall of the molding cavity, a required cover workpiece is obtained, and when the upper mold and the lower mold are opened, the cover workpiece is limited by the mold core part so that the cover workpiece can be smoothly separated from the upper mold core and the lower mold core, no thimble is additionally arranged, the material taking is more convenient, and the mold has the characteristics of good molding effect, easiness in demolding and material taking and the like.

Drawings

FIG. 1 is a schematic view of an injection molded workpiece.

Fig. 2 is a schematic structural view of the injection mold.

Fig. 3 is a side view of the injection mold.

Fig. 4 is a sectional view a-a in fig. 3.

Fig. 5 is an enlarged view of a portion I in fig. 4.

Fig. 6 is a sectional view of B-B in fig. 3.

Fig. 7 is a schematic view of the lower die.

Fig. 8 is a schematic view of the upper die.

The method comprises the following steps of 1-upper die, 11-nozzle, 12-upper die core, 121-upper groove, 13-abutting block, 14-inclined guide post, 2-lower die, 21-lower die core, 211-lower groove, 22-movable sliding seat, 23-sliding block and 24-die core part.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1 to 8, in the present embodiment, an injection mold includes an upper mold 1 and a lower mold 2 arranged up and down, wherein the upper mold 1 is provided with a nozzle 11 for guiding a material, and the nozzle 11 is funnel-shaped.

In this embodiment, a lower mold core 21 and two movable slides 22 symmetrically arranged on both sides of the lower mold core 21 are disposed on the top surface of the lower mold 2, wherein the movable slides 22 are L-shaped and the height of the movable slides 22 is higher than that of the lower mold core 21 so that the side walls of the movable slides 22 are attached to the lower mold core 21. A compression spring 25 is arranged between the bottom surface of the movable sliding seat 22 and the top surface of the lower die 2, specifically, a spring groove for accommodating the compression spring 25 is formed on the top surface of the lower die 2, and two ends of the compression spring 25 respectively abut against the bottom of the spring groove and the bottom surface of the movable sliding seat 22, so that the movable sliding seat 22 is lifted under the action of the elastic jacking force of the compression spring 25. Sliding blocks 23 which can be close to or far away from the lower mold core 21 are arranged on the two movable sliding seats 22 in a sliding mode, wherein sliding grooves which extend along the transverse direction are formed in the movable sliding seats 22, and wedge-shaped sliding blocks which are connected with the sliding grooves in a sliding mode are formed in the sliding blocks 23.

In this embodiment, the bottom surface of the upper mold 1 is provided with an upper core 12 matched with the lower core 21 and two support blocks 13 symmetrically arranged at two sides of the upper core 12, wherein when the upper mold 1 and the lower mold 2 are closed, the bottom surface of the upper core 12 is attached to the top surface of the lower core 21 and the side walls of the upper core 12 are attached to the side walls of the movable slide 22, so that the side walls of the two movable slides 22, the bottom surface of the upper core 12 and the top surface of the lower core 21 jointly enclose at least one molding cavity.

Further, the present embodiment is provided with four molding cavities distributed in a matrix, wherein each molding cavity includes an upper molding groove 121 formed in the bottom surface of the upper core 12 and a lower molding groove 211 formed in the top surface of the lower core 21, and the upper molding groove 121 and the lower molding groove 211 both extend toward the side wall of the adjacent movable slide 22.

In this embodiment, one end of the abutting block 13 is provided with an abutting inclined surface, and one end of the sliding block 23 corresponding to the abutting inclined surface is provided with a sliding inclined surface; meanwhile, the two sides of the upper die 1 are fixedly provided with the inclined guide posts 14 which extend downwards to the bottom surface of the upper die, the sliding block 23 is formed with guide post holes corresponding to the inclined guide posts 14, and the inclined guide posts 14 can slide along the guide post holes, so that the sliding block 23 can slide transversely and reciprocally along with the up-and-down motion of the upper die 1 relative to the lower die 2, that is, the abutting block 13 is used for abutting against the sliding block 2331 to slide transversely and the inclined guide posts 14 are used for driving the sliding block 23 to slide transversely, so that the sliding block 2331 can slide transversely and reciprocally, therefore, when the upper die 1 moves downwards relative to the lower die 2, the two sliding blocks 23 are closed towards each other, and conversely, when the upper die 1 moves upwards relative to the lower.

In this embodiment, two mold core portions 24 are fixedly disposed on the side wall of each sliding block 23, each mold core portion 24 corresponds to one molding cavity, wherein the end portion of each mold core portion 24 horizontally extends through the movable slide 22 and extends into the molding cavity, and at this time, the material is molded in the gap space between the mold core portion 24 and the inner wall of the molding cavity. The film core of the present embodiment is a sheet-like structure.

Specifically, when the injection mold is closed and injected, the upper mold 1 moves downward relative to the lower mold 2 to close the mold, so that the abutting block 13 and the inclined guide post 14 move downward relative to each other, and the sliding blocks 23 are driven to close gradually in opposite directions, so that the mold core parts 24 on both sides gradually extend into the molding cavity, until the upper mold 1 and the lower mold 2 are completely closed and attached (at this time, the movable slide 22 presses the compression spring 25 under the action of downward movement of the upper mold and is tightly attached to the top surface of the lower mold 2), the material enters a clearance space between the mold core part 24 and the inner wall of the molding cavity through the sprue gate 11 and the pouring gate to be molded, and thus the required workpiece.

When the injection mold is opened to take a workpiece, the upper mold 1 moves upwards and separates relative to the lower mold 2, so that the abutting block 13 and the inclined guide post 14 move upwards relatively, the mold blocks are driven to open back gradually to enable the mold core parts 24 on two sides to gradually withdraw from the molding cavity and the movable slide 22 is lifted upwards by the elastic jacking force of the compression spring 25, and the molded workpiece can be smoothly separated from the upper mold core 12 and the lower mold core 21 respectively without additional ejector pins until the upper mold 1 and the lower mold 2 are completely separated, and the injection molded workpiece falls on the lower mold 2 and can be directly taken down manually.

The above-described embodiments are merely preferred embodiments of the present invention, which are not intended to limit the present invention in any way. Those skilled in the art can make many changes, modifications, and equivalents of the embodiments of the invention without departing from the scope of the invention. Therefore, the content of the technical scheme of the utility model, according to the equivalent change made by the idea of the utility model, should be covered in the protection scope of the utility model.

Claims

1. The utility model provides an injection mold, includes mould (1) and lower mould (2), it is equipped with watering mouth (11) to go up mould (1), its characterized in that: the mold comprises a lower mold (2), an upper mold (1) and a lower mold, wherein the top surface of the lower mold (2) is provided with a lower mold core (21) and two movable sliding seats (22) which are symmetrically arranged on two sides of the lower mold core (21), a compression spring (25) is arranged between the bottom surface of the movable sliding seats (22) and the top surface of the lower mold (2), the bottom surface of the upper mold (1) is provided with an upper mold core (12) matched with the lower mold core (21) and two abutting blocks (13) symmetrically arranged on two sides of the upper mold core (12), the side walls of the two movable sliding seats (22), the bottom surface of the upper mold core (12) and the top surface of the lower mold core (21) jointly enclose to form at least one molding cavity, and a pouring gate; sliding blocks (23) which can be close to or far away from the lower mold core (21) are arranged on the two movable sliding seats (22) in a sliding mode, the two abutting blocks (13) are respectively abutted and matched with the two sliding blocks (23), and the sliding blocks (23) are driven to transversely slide in a reciprocating mode along with the up-and-down movement of the abutting blocks (13); the sliding block (23) is fixedly provided with at least one die core part (24), and the end part of the die core part (24) horizontally extends to penetrate through the movable sliding seat (22) and extends into the forming cavity.

2. An injection mold according to claim 1, wherein: each molding cavity comprises an upper molding groove (121) formed in the bottom surface of the upper mold core (12) and a lower molding groove (211) formed in the top surface of the lower mold core (21), and the upper molding groove (121) and the lower molding groove (211) extend towards the side wall direction of the adjacent movable sliding seat (22).

3. An injection mold according to claim 1, wherein: the two sides of the upper die (1) are provided with inclined guide posts (14) which are inclined downwards and extend to the bottom surface of the upper die, guide post holes corresponding to the inclined guide posts (14) are formed in the sliding block (23), and the inclined guide posts (14) reciprocate up and down along with the upper die (1) to drive the sliding block (23) to transversely slide in a reciprocating manner.

4. An injection mold according to claim 1, wherein: one end of the abutting block (13) is provided with an abutting inclined surface, one end of the sliding block (23) corresponding to the abutting inclined surface is provided with a sliding inclined surface, and the sliding inclined surfaces are pressed and driven by the abutting inclined surfaces to enable the two sliding blocks (23) to slide oppositely.

5. An injection mold according to claim 1, wherein: the movable sliding seat (22) is formed with a sliding groove extending along the transverse direction, and the sliding block (23) is formed with a wedge-shaped sliding block connected with the sliding groove in a sliding mode.