CN219543908U - Injection mold - Google Patents

Abstract

The utility model provides an injection mold, comprising: a first template; the second template is arranged below the first template; the Hafu line position is arranged between the first template and the second template, the Hafu line position, the first template and the second template jointly enclose an injection cavity of the injection part, and the Hafu line position is configured to be movable along a direction away from the injection cavity; the demolding device is arranged on the first template and used for driving the Hafu line position to move along the direction away from the injection cavity; the stop structure is arranged on the first template and on a route along which the Haffy line moves along a direction away from the injection cavity. By applying the technical scheme of the utility model, the problem that the Hafu line position is easy to move excessively during demolding in the related technology, so that the mold is difficult to be closed again can be effectively solved.

Description

Injection mold

Technical Field

The utility model relates to the field of injection molding devices, in particular to an injection mold.

Background

At present, when a part is injection molded, if a clasp structure is arranged on the part to be injection molded, a Haff line position is generally required to be adopted for injection molding.

An injection mold with a haverse position is disclosed in patent document CN207578983U, and a demolding device is used to realize demolding in the process of realizing demolding of the haverse position. The stripper device typically takes the form of guide posts and resilient members to guide the position of movement during the haverse stripping.

However, the above-mentioned method lacks a structure for limiting the haverse line position, which causes that the haverse line position is easy to move excessively during demolding, and the re-mold closing is difficult.

Disclosure of Invention

The utility model mainly aims to provide an injection mold, which solves the problem that the injection mold with the Harvard line position in the related art is difficult to mold.

In order to achieve the above object, according to one aspect of the present utility model, there is provided an injection mold comprising: a first template; the second template is arranged below the first template; the Hafu line position is arranged between the first template and the second template, the Hafu line position, the first template and the second template jointly enclose an injection cavity for injection molding parts, and the Hafu line position is configured to be movable along a direction away from the injection cavity; the demolding device is arranged on the first template and used for driving the Hafu line position to move along the direction away from the injection cavity; the stop structure is arranged on the first template and on a route along which the Hafu line position moves along a direction away from the injection cavity and used for stopping the Hafu line position when the Hafu line position moves.

Further, the injection mold further comprises an auxiliary demolding device, wherein the auxiliary demolding device comprises a first protruding structure arranged on the second template and a second protruding structure arranged on the Hafu line position; the second protruding structure is configured to drive the haffling position to move in a direction away from the injection cavity via the first protruding structure when the second template is separated from the first template.

Further, a first inclined plane is arranged on the first protruding structure, a second inclined plane matched with the first inclined plane in a pushing mode is arranged on the second protruding structure, and the first inclined plane and the second inclined plane are gradually inclined upwards in the direction away from the injection cavity in the second template.

Further, the first inclined plane and the second inclined plane are arranged in parallel, and an included angle between the first inclined plane and the horizontal plane is between 8 degrees and 10 degrees.

Further, the second template comprises a lower template and a lower die core fixedly arranged at the top of the lower template, the Harf line position is arranged at the side part of the lower die core and is positioned above the lower template, the first protruding structure is arranged at the top of the lower template, and the second protruding structure is arranged at the bottom of the Harf line position.

Further, the second protruding structure is provided with a slot, the notch of the slot faces the injection molding cavity, the first protruding structure is provided with an inserting block extending into the slot, the bottom wall of the inserting block forms a first inclined plane, and the bottom wall of the slot forms a second inclined plane.

Further, the first protruding structure is arranged at the middle part of the haffling in the horizontal direction, the second protruding structure is arranged between the first protruding structure and the lower die core, and the lower die core is provided with an avoidance groove for avoiding the first protruding structure.

Further, the first template comprises an upper template and an upper die core fixedly arranged at the bottom of the upper template, an injection cavity is formed by surrounding the upper template, the upper die core, the lower template, the lower die core and the Hafei line together, the demolding device is arranged on the upper template, and the stop structure is arranged at the bottom of the upper template.

Further, the stop structure comprises a stop block, and the stop block is matched with the Harvard line position through a slope structure.

Further, the demoulding device comprises a first inclined hole arranged on the upper template, a second inclined hole arranged on the Hafu line position, an inclined column penetrating through the first inclined hole and the second inclined hole, and an elastic piece sleeved on the inclined column, wherein a first step surface in butt fit with the first end of the elastic piece is arranged on the hole wall of the first inclined hole, a second step surface in butt fit with the second end of the elastic piece is arranged in the second inclined hole, and when the first template and the second template are clamped, the first step surface and the second step surface are mutually close to each other to squeeze the elastic piece.

Further, the angle between the inclined column and the vertical plane is between 10 ° and 20 °.

By applying the technical scheme of the utility model, the demolding device is arranged between the first template and the Harvard line position, so that the injection mold can be easily demolded. Set up the backstop structure on first template, the backstop structure sets up on the direction that the haffy position moved along keeping away from the chamber of moulding plastics on to can carry out spacingly to the position of haffy position when the drawing of patterns, make the haffy position can not remove the position of crossing, guaranteed the smoothness when injection mold dies again next time.

In addition, still through setting up including setting up the first protruding structure on the second template and setting up the supplementary shedder of the protruding structure of second on the position is gone to the hafei, when second template and first template separate, move along the direction of keeping away from the injection molding chamber through the line position of first protruding structure drive hafei to play auxiliary role to injection mold's die sinking, and then need not use other auxiliary assembly when the die sinking, saved the operation step when the die sinking, promoted the efficiency of part drawing of patterns.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic structural view of an embodiment of an injection mold according to the present utility model, wherein fig. 1 shows a schematic structural view of the injection mold in a film-closed state.

Fig. 2 shows a schematic structural view of the injection mold of fig. 1, wherein fig. 2 shows a schematic structural view of the injection mold in a demolding state.

Wherein the above figures include the following reference numerals:

10. a first template; 11. an upper template; 12. an upper die core; 20. a second template; 21. a lower template; 22. a lower die core; 221. an avoidance groove; 30. hafuline bits; 40. a demolding device; 41. a first inclined hole; 411. a first step surface; 412. a second step surface; 42. a second inclined hole; 43. an inclined column; 44. an elastic member; 50. an auxiliary demolding device; 51. a first bump structure; 511. a first inclined surface; 52. a second bump structure; 521. a second inclined surface; 60. a stop block; 70. parts.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

As shown in fig. 1 and 2, the injection mold of the present embodiment includes: first template 10, second template 20, haffline 30, stripper 40, and stop. Wherein the second template 20 is disposed under the first template 10; the haverse line position 30 is arranged between the first template 10 and the second template 20, the haverse line position 30, the first template 10 and the second template 20 jointly enclose an injection cavity for injection molding parts, and the haverse line position 30 is configured to be movable along a direction away from the injection cavity; the demolding device 40 is arranged on the first template 10 and is used for driving the Hafu line position 30 to move along the direction away from the injection cavity; the stop structure is arranged on the first template 10 and on a path along which the haffling position 30 moves along a direction away from the injection cavity, and is used for stopping the haffling position 30 when the haffling position 30 moves.

By applying the technical solution of the present embodiment, the present embodiment provides the demolding device 40 between the first mold plate 10 and the haffline location 30, so that the injection mold can be easily demolded. In addition, set up the backstop structure on first template 10, the backstop structure sets up on the direction that the position 30 was moved in the direction of keeping away from the injection molding chamber is gone to the haverse to can carry out spacingly to the position of position 30 in the haverse when drawing of patterns, make the haverse position 30 can not remove the position, guaranteed the smoothness when injection mold closes again next time.

It should be noted that, the injection mold of the present embodiment may be a two-shot injection mold.

In some embodiments, the injection mold further comprises an auxiliary demolding device 50, the auxiliary demolding device 50 comprising a first raised structure 51 provided on the second mold plate 20 and a second raised structure 52 provided on the haffline location 30; the second bump structure 52 is configured to drive the haffline bit to move in a direction away from the injection cavity via the first bump structure when the second mold plate 20 is separated from the first mold plate 10. Thus, when demolding, the second bulge structure 52 drives the haffling position 30 to move along the direction away from the injection cavity, so that the second template 20 can assist in driving the haffling position 30 to move towards the separation position when the mold is opened to move, thereby playing an auxiliary role in mold opening of the injection mold, further, other auxiliary equipment is not needed to be used when the mold is opened, the operation steps during mold opening are saved, and the demolding efficiency of the part is improved.

As shown in fig. 1 and 2, the first protrusion structure 51 is provided with a first inclined surface 511, the second protrusion structure 52 is provided with a second inclined surface 521 in pushing engagement with the first inclined surface 511, and the first inclined surface 511 and the second inclined surface 521 are gradually inclined upward in a direction away from the injection cavity of the second mold plate 20. The above structure enables the second die plate 20 to drive the haverse line position 30 to move along the direction away from the injection cavity when the die opening moves, thereby playing an auxiliary role in die opening of the injection die. The structure is simple, the processing is convenient, and the structure of the injection mold is simplified.

Specifically, as shown in fig. 1 and 2, the first inclined surface 511 and the second inclined surface 521 are disposed in parallel, and an angle between the first inclined surface 511 and a horizontal plane is between 8 ° and 10 °. In the above structure, the included angle between the first inclined plane 511 and the horizontal plane is greater than or equal to 8 °, so that the pushing action of the first protruding structure 51 on the second protruding structure 52 is ensured to be larger, and the haverse line 30 can be conveniently moved to the separation position. The included angle between the first inclined plane 511 and the horizontal plane is smaller than or equal to 10 degrees, so that the phenomenon that the haffling position 30 is pushed out of position due to overlarge pushing action of the first protruding structure 51 on the second protruding structure 52 can be avoided. Further, the included angle between the first inclined surface 511 and the horizontal plane may be a non-integer arbitrary value between 8 °, 9 °, or 10 °, and 8 ° to 10 °.

As shown in fig. 1 and 2, the second mold plate 20 includes a lower mold plate 21 and a lower mold core 22 fixedly disposed at the top of the lower mold plate 21, the haffling site 30 is disposed at the side of the lower mold core 22 and above the lower mold plate 21, the first protrusion structure 51 is disposed at the top of the lower mold plate 21, and the second protrusion structure 52 is disposed at the bottom of the haffling site 30. The structure enables the design layout of the injection mold to be more optimized and reasonable, and the effect of assisting the Harvard line position 30 in demolding can be achieved through a simple structure.

As shown in fig. 1 and 2, the second protruding structure 52 is provided with a slot, the slot is oriented to the injection cavity, the first protruding structure 51 is provided with an insert protruding into the slot, the bottom wall of the insert forms a first inclined plane 511, and the bottom wall of the slot forms a second inclined plane 521. The above-mentioned structure is convenient for realize that first protruding structure 51 and second protruding structure 52 carry out the effect of jacking cooperation through first inclined plane 511 and second inclined plane 521 to turn into the activity that carries out the top to the position 30 is moved to the haffling in the horizontal direction to the activity that carries out the top to second template 20 down, thereby play the effect of supplementary drawing of patterns.

As shown in fig. 1 and 2, the second protruding structure 52 is disposed at the middle of the haffling position 30 in the horizontal direction, the second protruding structure 52 is located between the first protruding structure 51 and the lower mold core 22, and the lower mold core 22 is provided with an avoiding groove for avoiding the first protruding structure 51. In the above structure, the second protrusion structure 52 is provided at the middle of the haverse position 30 to help to apply force to the haverse position 30, so that the haverse position 30 is more easily driven from the injection molding position to the separation position. Therefore, the setting position of the first protruding structure 51 is matched with the setting position of the second protruding structure 52, so that the movement of the haffling position 30 is more convenient, and the mode of avoiding the groove to avoid the first protruding structure 51 can ensure that the setting position of the first protruding structure 51 is more favorable for demolding.

As shown in fig. 1 and 2, the first mold plate 10 includes an upper mold plate 11 and an upper mold core 12 fixedly disposed at the bottom of the upper mold plate 11, wherein the upper mold plate 11, the upper mold core 12, a lower mold plate 21, the lower mold core 22 and the haffling position 30 together enclose an injection cavity, the demolding device 40 is disposed on the upper mold plate 11, and the stopper structure is disposed at the bottom of the upper mold plate 11. The structure can realize injection molding of parts with buckles, the injection molding structure has reasonable layout, simple structure and convenient processing,

as shown in fig. 1 and 2, the stop structure includes a stop block 60, and the stop block 60 is in stop fit with the haverse line position 30 through a slope structure. In the structure, the inclined plane is matched with the stop structure, so that the Haffy line phase has a moving component in the horizontal direction and a moving component in the vertical direction relative to the stop structure.

As shown in fig. 1 and 2, the demolding device 40 includes a first inclined hole 41 provided in the upper mold 11, a second inclined hole 42 provided in the haffline position 30, an inclined post 43 penetrating the first inclined hole 41 and the second inclined hole 42, and an elastic member 44 fitted over the inclined post 43, the wall of the first inclined hole 41 has a first stepped surface 411 abutting against and engaged with a first end of the elastic member 44, the second inclined hole 42 has a second stepped surface 412 abutting against and engaged with a second end of the elastic member 44, and when the first mold 10 and the second mold 20 are closed, the first stepped surface 411 and the second stepped surface 412 approach each other to press the elastic member 44. In the above configuration, during injection molding, the first mold plate 10 and the second mold plate 20 are positioned at the injection molding position (i.e., during mold clamping), and at this time, the first step surface 411 and the second step surface 412 are brought close to each other to press the elastic member 44, so that the elastic member 44 is in a compressed state. After injection molding is completed, the elastic piece 44 can push the haffling position 30 under the action of elastic reset force, and meanwhile, the second template 20 moves in a direction away from the first mold to further push the haffling position 30 to a separation position, so that the mold opening of the injection mold is realized, and the part 70 can be smoothly demolded.

Specifically, as shown in fig. 1 and 2, the angle between the inclined post 43 and the vertical plane is between 10 ° and 20 °. In the above structure, the inclination angle of the inclined column 43 is set to be greater than or equal to 10 degrees, so that a certain pushing effect can be achieved on the haffling position 30, and the separation of the film is facilitated; the inclination angle of the inclined column 43 is set to be less than or equal to 20 degrees, so that the phenomenon of clamping the mold in the mold opening process can be avoided, and the mold is easy to separate.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. An injection mold, comprising:

a first template (10);

a second template (20) disposed below the first template (10);

the Harvard line position (30) is arranged between the first template (10) and the second template (20), the Harvard line position (30), the first template (10) and the second template (20) jointly enclose an injection cavity for injection molding of a part, and the Harvard line position (30) is configured to be movable along a direction away from the injection cavity;

the demolding device (40) is arranged on the first template (10) and used for driving the Harvard line position (30) to move in a direction away from the injection cavity;

the stop structure is arranged on the first template (10) and on a route of the Harvard line position (30) moving along a direction far away from the injection cavity, and is used for stopping the Harvard line position (30) when the Harvard line position (30) moves.

2. Injection mold according to claim 1, further comprising an auxiliary demolding device (50); the auxiliary demolding device (50) comprises a first protruding structure (51) arranged on the second mold plate (20) and a second protruding structure (52) arranged on the haverse line position (30); the second raised structure (52) is configured such that, when the second template (20) is separated from the first template (10), the haverse line (30) is driven to move in a direction away from the injection cavity via the first raised structure (51).

3. The injection mold according to claim 2, wherein a first inclined surface (511) is provided on the first protruding structure (51), a second inclined surface (521) which is in pushing fit with the first inclined surface (511) is provided on the second protruding structure (52), and the first inclined surface (511) and the second inclined surface (521) are gradually inclined upward in a direction away from the injection cavity.

4. An injection mould according to claim 3, characterized in that the first bevel (511) is arranged parallel to the second bevel (521), the angle between the first bevel (511) and the horizontal plane being between 8 ° and 10 °.

5. The injection mold according to claim 2, wherein the second mold plate (20) comprises a lower mold plate (21) and a lower mold core (22) fixedly arranged at the top of the lower mold plate (21), the haverse position (30) is arranged at the side part of the lower mold core (22) and above the lower mold plate (21), the first protruding structure (51) is arranged at the top of the lower mold plate (21), and the second protruding structure (52) is arranged at the bottom of the haverse position (30).

6. An injection mould according to claim 3, wherein the second projection (52) is provided with a slot, the slot opening towards the injection cavity, the first projection (51) is provided with a plug extending into the slot, the bottom wall of the plug forms the first inclined surface (511), and the bottom wall of the slot forms the second inclined surface (521).

7. The injection mold according to claim 5, wherein the second protrusion structure (52) is disposed at a middle portion of the haverse line position (30) in a horizontal direction, the second protrusion structure (52) is located between the first protrusion structure (51) and the lower mold core (22), and an avoidance groove (221) for avoiding the first protrusion structure (51) is disposed on the lower mold core (22).

8. The injection mold according to claim 5, wherein the first mold plate (10) comprises an upper mold plate (11) and an upper mold core (12) fixedly arranged at the bottom of the upper mold plate (11), wherein the upper mold plate (11), the upper mold core (12), the lower mold plate (21), the lower mold core (22) and the haverse position (30) jointly enclose the injection cavity, the demolding device (40) is arranged on the upper mold plate (11), and the stop structure is arranged at the bottom of the upper mold plate (11).

9. The injection mold according to any one of claims 1 to 8, characterized in that the stop structure comprises a stop block (60), the stop block (60) being in stop fit with the haverse line (30) by means of a ramp structure.

10. The injection mold according to claim 8, wherein the demolding device (40) comprises a first inclined hole (41) arranged on the upper mold plate (11), a second inclined hole (42) arranged on the haverse position (30), inclined posts (43) penetrating through the first inclined hole (41) and the second inclined hole (42), and elastic pieces (44) sleeved on the inclined posts (43), a first step surface (411) which is in abutting fit with a first end of the elastic pieces (44) is arranged on a hole wall of the first inclined hole (41), a second step surface (412) which is in abutting fit with a second end of the elastic pieces (44) is arranged in the second inclined hole (42), and the first step surface (411) and the second step surface (412) are mutually close to the elastic pieces (44) when the first mold plate (10) and the second mold plate (20) are clamped.