CN219445978U - Oblique-ejection oblique-direction core-pulling mechanism with injection mold - Google Patents

Abstract

The utility model discloses a core pulling mechanism with an oblique top and an oblique direction for an injection mold, which comprises the following components: the rear mould, the mould core and the inclined core pulling mechanism are arranged on the top of the rear mould; the inclined core pulling mechanism comprises a sliding block, a shovel base and an inclined top, an inclined hole is formed in the mold core, the sliding block is slidably matched in the inclined hole and is in sliding connection with the shovel base, a first forming groove for forming an inclined protruding part of a product is formed in the sliding block, and the shovel base is used for driving the sliding block to obliquely slide along the inclined hole for core pulling; the inclined top is movably arranged in the sliding block, a second forming groove for forming the back-off part of the product is formed between one side of the inclined top and the sliding block, and the inclined top can be driven to horizontally move towards the direction deviating from the second forming groove during core pulling action of the sliding block so as to separate from the back-off part on the product. The oblique-ejection oblique-direction core pulling mechanism with the injection mold disclosed by the utility model not only can synchronously drive the oblique ejector to separate from the product back-off position to realize normal demolding in the process of pulling the core of the oblique protrusion of the injection product, but also has the advantages of simple structure and low manufacturing cost.

Description

Oblique-ejection oblique-direction core-pulling mechanism with injection mold

Technical Field

The utility model relates to the technical field of injection molds, in particular to a core pulling mechanism with an oblique top and an oblique direction for an injection mold.

Background

The injection molded product is usually provided with ribs, convex columns and other structures based on self assembly or function requirements, and when the extending direction of the structures is inconsistent with the opening and closing direction, normal demolding is realized by arranging an inclined core pulling mechanism. However, the conventional oblique core pulling mechanism can only drive the sliding block to move along one direction to pull the core, when the oblique bulge and the back-off part simultaneously exist on the injection molding product, and because the space is narrow, the oblique bulge and the back-off part are not allowed to be respectively and independently used as core pulling structures, so that the conventional core pulling mechanism cannot be applied, and the demolding cannot be realized for the injection molding product with the special structure. Accordingly, there is a need for improvements in the art that overcome the shortcomings of the prior art.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the oblique-ejection oblique-direction core-pulling mechanism with the oblique ejection for the injection mold, which has the advantages of simple structure and ingenious design conception, and can synchronously drive the oblique ejection to be separated from the inverted buckle position of the product to realize normal demolding in the process of obliquely and convexly pulling the core of the injection product.

The technical scheme adopted by the utility model for solving the technical problems is as follows: an oblique direction core pulling mechanism of a tape inclined top of an injection mold, comprising: the device comprises a rear die, a die core and an inclined core pulling mechanism, wherein the die core is fixed at the top of the rear die; the inclined core pulling mechanism comprises a sliding block, a shovel base and an inclined top, wherein an inclined hole is formed in the mold core, the sliding block is slidably matched in the inclined hole and is slidably connected with the shovel base, a first forming groove for forming an inclined convex part of a product is formed in the sliding block, and the shovel base is used for driving the sliding block to obliquely slide and pull cores along the inclined hole; the inclined top is movably arranged in the sliding block, a second forming groove for forming a back-off part of the product is formed between one side of the inclined top and the sliding block, and the inclined top can be driven to horizontally move in the direction away from the second forming groove during core pulling action of the sliding block so as to separate from the back-off part on the product.

As a further improvement of the utility model, a guide groove is arranged in the sliding block, the upper end of the guide groove is obliquely arranged towards the direction away from the second forming groove, and the inclined top is slidingly matched in the guide groove.

As a further improvement of the utility model, the lower end of the inclined top is bent to form a limiting part, the inner wall of the inclined hole is provided with a limiting groove relative to the limiting part, and the limiting part extends outwards from the sliding block horizontally and extends into the limiting groove so as to limit the movement of the inclined top along the vertical direction.

As a further improvement of the utility model, a limiting block is arranged on the mold core, and the limiting block is formed between the limiting block and the mold core.

As a further improvement of the utility model, the slide block is arranged above the limiting part and provided with an avoidance groove along the core pulling direction.

As a further improvement of the utility model, the shovel base is arranged at the bottom of the mold core along the vertical direction, the upper end of the shovel base is provided with a T-shaped sliding table, and the sliding block is in sliding connection with the T-shaped sliding table through a T-shaped sliding groove arranged at the lower end of the sliding block.

As a further improvement of the utility model, the inclined core-pulling mechanism also comprises a core-pulling template which is arranged at the bottom of the rear mould; the lower end of the shovel base is fixed on the core-pulling die plate, and the core-pulling die plate is used for driving the shovel base to move downwards during die opening.

The beneficial effects of the utility model are as follows: the utility model provides a core pulling mechanism with an inclined top and an inclined direction for an injection mold, wherein a sliding block is arranged in an inclined hole of a mold core, the inclined top capable of relatively displacing is arranged in the sliding block, a core pulling mold plate slides downwards along the inclined hole by a shovel belt to separate from an inclined bulge of a product when the mold is opened, meanwhile, the sliding block drives the inclined top to move horizontally so as to separate from a back-off part on the product, and the inclined top can be synchronously driven to separate from the back-off position of the product in the process of pulling the inclined bulge of the injection mold product, so that core pulling in different directions is realized, the demolding requirement of the injection mold product with a special structure simultaneously provided with the inclined bulge and the back-off part and limited in space is met, and the core pulling mechanism has ingenious design conception, simple structure and low manufacturing cost.

Drawings

FIG. 1 is a perspective view of an injection mold with a diagonal top core pulling mechanism;

FIG. 2 is a top view of the injection mold with the oblique-ejection oblique-direction core pulling mechanism of the utility model;

FIG. 3 is a cross-sectional view of the injection mold with the oblique-ejection oblique-direction core pulling mechanism in the direction A-A in FIG. 2;

FIG. 4 is a front view of the injection mold with the oblique-ejection oblique-direction core pulling mechanism of the utility model;

FIG. 5 is a cross-sectional view of the injection mold with the oblique-ejection oblique-direction core pulling mechanism in the B-B direction in FIG. 4;

FIG. 6 is a perspective view of an oblique core pulling mechanism in the oblique-ejection oblique-direction core pulling mechanism of the injection mold;

fig. 7 is a perspective view of the tilt head of the present utility model assembled in a slider.

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

1. a rear mold; 2. a mold core; 3. a slide block; 301. a first molding groove; 302. a second molding groove; 303. a guide groove; 304. an avoidance groove; 4. a shovel base; 5. a pitched roof; 501. a limit part; 6. a limiting block; 7. a core pulling template; 100. and (5) a product.

Detailed Description

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

Referring to fig. 1 to 7, the present utility model provides an injection mold core pulling mechanism with a slanting top and slanting direction, which is used for demolding an injection molded product 100. Wherein, at least two oblique protruding parts and an inverted buckle part exist on the product 100, the two oblique protruding parts are two ribs which are arranged on the inner surface of the product 100 in parallel along the oblique direction, and the inverted buckle part is an oblique buckle which is positioned on one side of the two oblique protruding parts.

Referring to fig. 3 and 6, the core pulling mechanism with oblique top and oblique direction of the injection mold of the utility model comprises: the mold comprises a rear mold 1, a mold core 2 and an inclined core pulling mechanism, wherein the mold core 2 is fixed at the top of the rear mold 1. The inclined core pulling mechanism comprises a sliding block 3, a shovel base 4, an inclined top 5 and a core pulling template 7, wherein an inclined hole is formed in the mold core 2 along the inclined direction of an inclined protruding portion of the product 100, the sliding block 3 is slidably matched in the inclined hole, and a first forming groove 301 for forming the inclined protruding portion of the product 100 is formed in the top of the sliding block 3. The shovel base 4 is arranged at the bottom of the mold core 2 along the vertical direction, the upper end of the shovel base 4 is provided with a T-shaped sliding table, the lower end of the sliding block 3 is provided with a T-shaped sliding groove, and the sliding block 3 is connected with the T-shaped sliding table in a sliding fit manner through the T-shaped sliding groove. The core-pulling template 7 is arranged at the bottom of the rear mould 1, and the lower end of the shovel base 4 is fixed on the core-pulling template 7 after passing through the rear mould 1. The core-pulling template 7 is used for driving the shovel base 4 to move downwards when the die is opened, and the shovel base 4 drives the sliding block 3 to slide downwards along the inclined hole so as to separate from the inclined bulge of the product 100, so that core pulling is realized.

Referring to fig. 5 to 7, the inclined top 5 is movably installed in the slider 3, and a second forming groove 302 is formed between the right side of the upper end of the inclined top 5 and the slider 3, and the second forming groove 302 is used for forming the back-off portion of the product 100. When the sliding block 3 is driven by the shovel base 4 to perform core pulling action obliquely downwards, the sliding block 3 can drive the inclined top 5 to horizontally move towards the direction deviating from the second forming groove 302 so as to separate from the back-off part on the product 100, thereby realizing core pulling in different directions, meeting the demolding requirement of the injection molding product 100 with a special structure that the inclined bulge and the back-off part exist at the same time and the space is limited, and having ingenious design conception, simple structure and low manufacturing cost.

Further, a guide groove 303 matched with the inclined top 5 in size is formed in the sliding block 3, the upper end of the guide groove 303 is obliquely arranged in a direction away from the second forming groove 302, the inclined top 5 is slidably matched in the guide groove 303, and the top surface of the inclined top 5 extends to be flush with the top surface of the sliding block 3. The inclined top 5 is L-shaped, and a limiting part 501 is formed by bending the lower end of the inclined top. The die core 2 is provided with a limit groove at the inner wall of the inclined hole and opposite to the limit part 501, and the limit part 501 horizontally extends outwards from the slide block 3 and extends into the limit groove so as to be used for limiting the movement of the inclined top 5 along the vertical direction. Thus, when the slider 3 slides along the inclined hole, the inclined top 5 will not displace in the vertical direction due to the limitation of the limiting groove to the limiting part 501, but will move in the horizontal direction under the action of the guiding groove 303, thereby completing parting or resetting actions.

Referring to fig. 5 and 6, a stopper 6 is installed at the bottom of the mold core 2 from bottom to top, and a stopper groove is formed between the stopper 6 and the mold core 2 so as to facilitate the assembly of the slider 3 and the inclined top 5 in the mold core 2. Specifically, the hanging table is arranged on the limiting block 6, the mold core 2 is provided with a stopping part opposite to the hanging table, the limiting part 501 extends between the hanging table and the stopping part, the bottom surface of the limiting part 501 is abutted against the hanging table, and the top surface of the limiting part is abutted against the stopping part, so that limiting is formed. Wherein, the slider 3 is provided with along its loose core direction and dodges the groove 304 in the top of spacing portion 501 for the oblique top 5 provides dodge the space for slider 3 motion.

It should be noted that, in the present application, the slider 3 is not an integral structure, but is formed by fixing and assembling a plurality of inserts by screws, as shown in fig. 6, so as to facilitate processing the first molding groove 301 and the second molding groove 302, and facilitate assembling the pitched roof 5.

In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The foregoing description is only of a preferred embodiment of the utility model, which can be practiced in many other ways than as described herein, so that the utility model is not limited to the specific implementations disclosed above. While the foregoing disclosure has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes and modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. Any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model without departing from the technical solution of the present utility model still falls within the scope of the technical solution of the present utility model.

Claims (7)

1. The core pulling mechanism comprises a rear mold (1), a mold core (2) and an oblique core pulling mechanism, wherein the mold core (2) is fixed at the top of the rear mold (1); the method is characterized in that: the oblique core pulling mechanism comprises a sliding block (3), a shovel base (4) and an oblique top (5), wherein an oblique hole is formed in the mold core (2), the sliding block (3) is slidably matched in the oblique hole and is slidably connected with the shovel base (4), a first forming groove (301) for forming an oblique protruding portion of a product (100) is formed in the sliding block (3), and the shovel base (4) is used for driving the sliding block (3) to obliquely slide along the oblique hole for core pulling; the oblique top (5) is movably arranged in the sliding block (3), a second forming groove (302) for forming a back-off part of the product (100) is formed between one side of the oblique top (5) and the sliding block (3), and the sliding block (3) can drive the oblique top (5) to horizontally move towards the direction deviating from the second forming groove (302) so as to separate from the back-off part on the product (100) when in core pulling action.

2. The oblique-ejection oblique-direction core pulling mechanism with an oblique ejector for an injection mold according to claim 1, wherein: the sliding block (3) is internally provided with a guide groove (303), the upper end of the guide groove (303) is obliquely arranged towards the direction deviating from the second forming groove (302), and the inclined top (5) is slidingly matched in the guide groove (303).

3. The oblique-ejection oblique-direction core pulling mechanism with an oblique ejector for an injection mold according to claim 1, wherein: the lower extreme bending type of oblique top (5) is formed with spacing portion (501), the inner wall in inclined hole for spacing portion (501) are provided with the spacing groove, spacing portion (501) level outwards extend in slider (3) and extend to in the spacing groove is used for limiting the motion of oblique top (5) along vertical direction.

4. The oblique-ejection oblique-direction core pulling mechanism with an oblique ejector for an injection mold according to claim 3, wherein: a limiting block (6) is arranged on the mold core (2), and the limiting groove is formed between the limiting block (6) and the mold core (2).

5. The oblique-ejection oblique-direction core pulling mechanism with an oblique ejector for an injection mold according to claim 3, wherein: the slider (3) is located above the limiting part (501) and is provided with an avoidance groove (304) along the core pulling direction.

6. The oblique-ejection oblique-direction core pulling mechanism with an oblique ejector for an injection mold according to claim 1, wherein: the shovel base (4) is arranged at the bottom of the mold core (2) along the vertical direction, a T-shaped sliding table is arranged at the upper end of the shovel base (4), and the sliding block (3) is in sliding connection with the T-shaped sliding table through a T-shaped sliding groove arranged at the lower end of the sliding block.

7. The oblique-ejection oblique-direction core pulling mechanism with an oblique ejector for an injection mold according to claim 1, wherein: the inclined core pulling mechanism further comprises a core pulling template (7) which is arranged at the bottom of the rear die (1); the lower end of the shovel base (4) is fixed on the core-pulling die plate (7), and the core-pulling die plate (7) is used for driving the shovel base (4) to move downwards during die sinking.