CN221112711U - Secondary slide block structure and injection mold - Google Patents

Abstract

The utility model discloses a secondary slide block structure and an injection mold, wherein the secondary slide block structure comprises a mounting seat and a small slide block, and the mounting seat is used for being mounted on one side of a rear mold core; the large sliding block is connected to the mounting seat in a sliding manner along the horizontal direction and is driven by the driving component to be close to or far away from the rear die core; the upper end of the large sliding block along the height direction is penetrated with a mounting groove along the horizontal direction; guide grooves are concavely formed in the two surrounding walls of the mounting groove along the width direction respectively, and the guide grooves are gradually and upwards inclined along the horizontal direction towards the direction deviating from the rear mold core; the two sides of the small sliding block along the width direction are respectively provided with a guide block in a protruding way, and the guide blocks are connected in the guide groove in a sliding way; the lower end of the small sliding block is provided with a strip groove which is parallel to the horizontal direction; the inner bottom wall of the mounting groove is convexly provided with a connecting needle which is connected in the strip groove in a sliding way; after the die is assembled, the connecting needle is abutted against the surrounding wall of the strip groove, which is away from the rear die core. The utility model can effectively avoid the insert hardware from being shoveled and reduce the risk of molding the insert hardware.

Description

Secondary slide block structure and injection mold

Technical Field

The utility model relates to the technical field of injection molding, in particular to a secondary sliding block structure and an injection mold.

Background

The traditional design method of the mold needing to expose the insert for molding is to design notch placement and positioning according to the theoretical shape and size of the insert, and because the glue position of the insert is needed to be provided with a sliding block, the insert is firstly placed in the mold and then injection molding is carried out, meanwhile, part of the insert is placed in the sliding block, in order to facilitate the installation of the insert, a secondary sliding block structure is needed to be designed, and part of the insert is placed between a large sliding block and a small sliding block of the secondary sliding block structure; in the traditional secondary slide block structure, the small slide block moves linearly in a plane under the action of the inclined guide post to perform die assembly, and because the periphery of the insert hardware fitting is an annular glue position, the small slide block moves linearly in a plane to perform die assembly, the insert hardware fitting is easy to be scratched by friction.

Disclosure of utility model

Therefore, the technical problem to be solved by the utility model is to overcome the defect that a small slide block in a secondary slide block structure in the prior art is easy to rub and scratch an insert hardware fitting in the process of die assembly movement, so as to provide the secondary slide block structure and an injection mold.

According to a first aspect of the present utility model, there is provided a secondary slider structure comprising:

the mounting seat is used for being mounted on one side of the rear die core;

The large sliding block is connected to the mounting seat in a sliding manner along the horizontal direction and is driven by the driving component to be close to or far away from the rear die core; the upper end of the large sliding block in the height direction is provided with a mounting groove, and the mounting groove penetrates through the large sliding block in the horizontal direction; two surrounding walls which are oppositely arranged in the width direction in the mounting groove are respectively provided with a guide groove in a concave manner, and the guide grooves are gradually upwards inclined in the horizontal direction towards the direction deviating from the rear die core; an embedding groove is concavely formed in one end, facing the rear mold core, of the inner bottom wall of the mounting groove, and the embedding groove is used for embedding an embedded hardware fitting;

The small sliding blocks are respectively provided with guide blocks in a protruding mode along the two sides of the width direction, and the guide blocks are connected in the guide grooves in a sliding mode; the lower end of the small sliding block along the height direction is provided with a strip groove which is parallel to the horizontal direction;

The connecting needle is convexly arranged on the inner bottom wall of the mounting groove and is arranged in the strip groove in a sliding manner; after the die is assembled, the connecting needle is abutted against the surrounding wall of the strip groove, which is away from the rear die core.

The secondary sliding block structure provided by the utility model has at least the following technical effects:

1. The guide blocks which are connected in the guide grooves in a sliding way are respectively arranged on two sides of the small sliding block along the width direction, the guide grooves gradually incline upwards along the horizontal direction, and the connecting needle is arranged in the strip groove in a sliding way; when the secondary slide block structure is used for closing the mold, the driving component is started to drive the large slide block to move towards the close rear mold core along the horizontal direction, and at the moment, the connecting pin is arranged in the strip groove in a sliding way and is not in butt joint with the surrounding wall of the strip groove towards the rear mold core along the horizontal direction, so that in the process that the large slide block moves towards the close rear mold core along the horizontal direction until the large slide block reaches the mold closing position, the large slide block moves towards the close rear mold core along the horizontal direction relatively to the small slide block, and the small slide block rises along the height direction relatively to the large slide block under the guiding action of the guide groove, and after the large slide block moves to the mold closing position, the large slide block and the small slide block are staggered for a distance along the horizontal direction and the height direction, so that the insert hardware is convenient to install in place in the embedded groove; then force is applied to push the small slide block, the small slide block can horizontally move close to the rear mold core relative to the large slide block under the guiding action of the guide groove and simultaneously move downwards, so that the small slide block is driven to move downwards obliquely to mold on the basis that the insert hardware fitting is installed in place in the embedded groove, and therefore the insert hardware fitting can be effectively prevented from being shoveled and the risk of molding the insert hardware fitting is reduced; the efficiency is improved and the die repairing cost of the injection die with the secondary slide block structure is reduced for subsequent production.

2. The large slide block is connected to the mounting seat in a sliding manner along the horizontal direction, and after the die assembly of the secondary slide block structure is completed, the connecting needle is abutted against one side surrounding wall of the strip groove, which is away from the rear die core along the horizontal direction; when carrying out the die sinking with this secondary slider structure, utilize connecting pin and rectangular groove to deviate from the effect of the mutual butt of one side enclosing wall of back mould benevolence along the horizontal direction for at the in-process that starts drive assembly and drives big slider and remove along the horizontal direction towards keeping away from back mould benevolence, little slider moves to the die sinking position along the horizontal direction towards keeping away from back mould benevolence along with big slider together, realizes with the accurate die sinking of this secondary slider structure, so that it is ejecting with the injection molding product.

Preferably, a limiting piece is arranged on the mounting seat in a sliding manner along the width direction, an elastic piece is arranged between the limiting piece and the mounting seat, and the limiting piece is positioned at one side of the large sliding block along the width direction; after the die is opened, one end, facing the large sliding block, of the limiting piece in the width direction is abutted against one side surface, facing the rear die core, of the small sliding block; and an unlocking piece is arranged on the large sliding block at a position corresponding to the limiting piece, and when the large sliding block is positioned at the die closing position, the unlocking piece pushes the limiting piece to retract and separate from the small sliding block.

Preferably, the unlocking piece is arranged parallel to the horizontal direction, one end of the unlocking piece, facing the rear die core, is provided with a V-shaped part, and the size of the V-shaped part gradually increases along the horizontal direction in a direction away from the rear die core; a blocking part is convexly arranged at one end of the limiting piece, which faces the small sliding block along the width direction; after the die is opened, the blocking part is abutted against the side surface of the small sliding block facing the rear die core, and the projection of the limiting piece, which faces the end surface of one end of the small sliding block along the width direction, along the horizontal direction falls on the V-shaped part; when the large slide block is positioned at the die closing position, one end of the limiting piece, which faces the small slide block along the width direction, is abutted to the large diameter end of the V-shaped part, and the blocking part is retracted to be separated from the small slide block.

Preferably, two limiting pieces are arranged and symmetrically arranged on two sides of the large sliding block along the width direction.

Preferably, one side of the small sliding block, which is away from the rear die core, is provided with an inclined through groove, and the inclined through groove gradually inclines from top to bottom in a direction away from the rear die core; the secondary slide block structure further comprises an inclined guide post, wherein the inclined guide post is arranged on the front die core and moves along the height direction along with the front die core; the inclined guide pillar is matched with the inclined through groove.

Preferably, one side of the small sliding block, which is away from the rear die core, is provided with a slope surface, and the slope surface is parallel to the inclined through groove; the secondary sliding block structure further comprises a shovel base, wherein the shovel base is arranged on the front die core and moves along the height direction along with the front die core; the shovel base is arranged to be an inclined plane along one side of the horizontal direction towards the rear die core, and the inclined plane is matched with the inclined plane.

Preferably, the driving assembly comprises an oil cylinder, the oil cylinder is arranged at one end of the mounting seat, which is away from the rear mold core, and the oil cylinder is arranged in parallel to the horizontal direction; and a piston rod of the oil cylinder is connected with the large sliding block.

Preferably, a T-shaped groove is formed in the end, facing the oil cylinder, of the large sliding block in the horizontal direction in a penetrating manner in the height direction, and the small diameter end of the T-shaped groove is communicated with the large diameter end of the T-shaped groove and faces one side of the oil cylinder; the piston rod of the oil cylinder is provided with a connecting table, and the connecting table is matched with the large-diameter end of the T-shaped groove.

Preferably, the elastic piece is provided as a spring, the spring is arranged along the width direction, one end of the spring is connected to the limiting piece, and the other end of the spring is connected to the mounting seat.

According to a second aspect of the present utility model, there is provided an injection mold comprising the secondary slide structure provided in the first aspect.

According to the injection mold provided by the utility model, at least the following technical effects are achieved:

1. the secondary slide block structure in the injection mold is characterized in that guide blocks which are connected in a sliding manner in the guide grooves are respectively arranged on two sides of the small slide block along the width direction, the guide grooves gradually incline upwards along the horizontal direction, and the connecting needle is arranged in the strip groove in a sliding manner; when the secondary slide block structure is subjected to die assembly, the driving component is started to drive the large slide block to move towards the close rear die core along the horizontal direction, and at the moment, the connecting pin is arranged in the strip groove in a sliding manner and is not in butt joint with the surrounding wall of the strip groove towards the rear die core along the horizontal direction, so that in the process that the large slide block moves towards the close rear die core along the horizontal direction until the large slide block reaches the die assembly position, the large slide block moves towards the close rear die core along the horizontal direction relatively to the small slide block, and the small slide block rises along the height direction relatively to the large slide block under the guiding action of the guide groove, and after the large slide block moves to the die assembly position, the large slide block and the small slide block are staggered for a distance along the horizontal direction and the height direction, so that the embedded fitting is convenient to install in place in the fitting groove; then force is applied to push the small slide block, the small slide block can horizontally move close to the rear mold core relative to the large slide block under the guiding action of the guide groove and simultaneously move downwards, so that the small slide block is driven to move downwards obliquely to mold on the basis that the insert hardware fitting is installed in place in the embedded groove, and therefore the insert hardware fitting can be effectively prevented from being shoveled and the risk of molding the insert hardware fitting is reduced; the efficiency is improved and the die repairing cost of the injection die is reduced for subsequent production.

2. The large slide block in the secondary slide block structure is connected to the mounting seat in a sliding manner along the horizontal direction, and after the die assembly of the secondary slide block structure is completed, the connecting needle is abutted against one side surrounding wall of the strip groove, which is away from the rear die core along the horizontal direction; when the secondary slide block structure is opened, the connecting pin and the strip groove are utilized to deviate from the effect of mutual butt of one side surrounding wall of the back mould core along the horizontal direction, so that the small slide block moves to the mould opening position along the horizontal direction along with the large slide block in the process that the large slide block moves along the horizontal direction towards the back mould core away from the back mould core in the process that the driving assembly is started, and the accurate mould opening of the secondary slide block structure is realized, so that the injection molding product is ejected.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a secondary slide block structure in a mold closing state;

FIG. 2 is a schematic diagram of the assembly structure of the small slider and the large slider of FIG. 1;

fig. 3 is a schematic structural view of a secondary slide structure in which a large slide is at a mold closing position but a small slide does not reach the mold closing position;

FIG. 4 is a schematic view of the assembly structure of the small slider and the large slider of FIG. 3;

Fig. 5 is a schematic diagram of a secondary slider structure in an open mold according to the present embodiment;

FIG. 6 is an enlarged schematic view of FIG. 5A;

FIG. 7 is an enlarged schematic view at B in FIG. 5;

FIG. 8 is a schematic cross-sectional view of a small slide and large slide assembly of the secondary slide structure of the present embodiment in a closed mold;

FIG. 9 is a schematic diagram showing an exploded structure of the assembly of the small slider and the large slider in the secondary slider structure of the present embodiment;

Fig. 10 is an exploded and enlarged schematic view of a part of the structure of a secondary slider structure of the present embodiment.

Reference numerals illustrate:

1-a mounting base;

2-a rear mold core;

3-large sliding blocks, 31-mounting grooves, 32-guiding grooves, 33-embedding grooves, 34-connecting pins, 35-unlocking pieces, 351-V-shaped parts, 36-first through grooves, 37-second through grooves and 38-T-shaped grooves;

4-insert hardware fitting;

5-small sliding blocks, 51-guide blocks, 52-long strip grooves, 53-inclined through grooves and 54-inclined surfaces;

61-a limiting piece, 611-a blocking part and 62-an elastic piece;

71-inclined guide posts and 72-shovel bases;

8-oil cylinder and 81-connecting table.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. 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.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Example 1

As shown in fig. 1 to 9, the secondary slide block structure provided in this embodiment includes a mounting seat 1, a large slide block 3 and a small slide block 5, where the mounting seat 1 is used for being mounted on one side of a rear mold core 2; the large sliding block 3 is connected to the mounting seat 1 in a sliding manner along the horizontal direction, and is driven by the driving component to approach or be far away from the rear mold core 2; the upper end of the large sliding block 3 along the height direction is provided with a mounting groove 31, and the mounting groove 31 penetrates through the large sliding block 3 along the horizontal direction; two surrounding walls which are oppositely arranged in the width direction in the mounting groove 31 are respectively provided with a guide groove 32 in a concave manner, and the guide grooves 32 are gradually upwards inclined in the horizontal direction towards the direction away from the rear die core 2; an embedding groove 33 is concavely arranged at one end of the inner bottom wall of the mounting groove 31 facing the rear die core 2, and the embedding groove 33 is used for embedding the insert hardware fitting 4; guide blocks 51 are respectively arranged on two sides of the small sliding block 5 along the width direction in a protruding mode, and the guide blocks 51 are connected in the guide grooves 32 in a sliding mode; the lower end of the small sliding block 5 along the height direction is provided with a strip groove 52, and the strip groove 52 is arranged parallel to the horizontal direction; the inner bottom wall of the mounting groove 31 is convexly provided with a connecting needle 34, and the connecting needle 34 is arranged parallel to the height direction and is arranged in the long strip groove 52 in a sliding way along the horizontal direction; after the mold is closed, the connecting pin 34 abuts against the surrounding wall of the long strip groove 52, which is away from the rear mold core 2. It is to be understood that the horizontal direction, the height direction, and the width direction described in this embodiment refer to the horizontal direction, the height direction, and the width direction in fig. 1.

In the secondary slide block structure of the embodiment, the guide blocks 51 which are connected in the guide grooves 32 in a sliding manner are respectively arranged at two sides of the small slide block 5 along the width direction, the guide grooves 32 gradually incline upwards along the horizontal direction, and the connecting needle 34 is arranged in the strip groove 52 in a sliding manner along the horizontal direction; when the secondary slide block structure of the embodiment is used for closing the mold, the driving component is started to drive the large slide block 3 to move towards the close rear mold core 2 along the horizontal direction, and the connecting needle 34 is arranged in the strip groove 52 in a sliding manner along the horizontal direction and is not abutted with the surrounding wall of the strip groove 52 towards the rear mold core 2 along the horizontal direction, so that in the process that the large slide block 3 moves towards the close rear mold core 2 along the horizontal direction until the large slide block 3 reaches the mold closing position, the large slide block 3 moves towards the close rear mold core 2 along the horizontal direction relative to the small slide block 5, and the small slide block 5 rises along the height direction relative to the large slide block 3 under the guiding action of the guiding groove 32, so that after the large slide block 3 moves to reach the mold closing position, the large slide block 3 and the small slide block 5 are staggered for a certain distance along the horizontal direction and the height direction, and the fitting of the insert fitting 4 is installed in place in the embedded groove 33; then force is applied to push the small slide block 5, the small slide block 5 can horizontally move close to the rear mold core 2 relative to the large slide block 3 under the guiding action of the guide groove 32 and simultaneously move downwards, so that the small slide block 5 is driven to move downwards obliquely to mold on the basis of installing the insert hardware fitting 4 in place in the embedded groove 33, and the insert hardware fitting 4 can be effectively prevented from being shoveled and the risk of molding the insert hardware fitting 4 is reduced; the efficiency is improved and the repair cost of the injection mold equipped with the secondary slide structure of the embodiment is reduced for subsequent production.

In the secondary slide block structure of the embodiment, the large slide block 3 is connected to the mounting seat 1 in a sliding manner along the horizontal direction, and after the secondary slide block structure of the embodiment is assembled, the connecting needle 34 is abutted against a surrounding wall of the strip groove 52, which is away from the rear die core 2 along the horizontal direction; when the secondary slide block structure of this embodiment is opened, the connecting pin 34 and the strip groove 52 are utilized to abut against each other along a side wall of the horizontal direction away from the rear mold core 2, so that the small slide block 5 moves to the mold opening position along the horizontal direction along with the large slide block 3 in the process of starting the driving assembly to drive the large slide block 3 to move along the horizontal direction away from the rear mold core 2, thereby realizing precise mold opening of the secondary slide block structure of this embodiment, so as to eject the injection molding product.

Considering that in the process of closing the mold of the present secondary slide structure and driving the large slide 3 to move in the horizontal direction toward the rear mold core 2 until the large slide 3 reaches the mold closing position, the small slide 5 moves along with the large slide 3 in the horizontal direction toward the rear mold core 2 by a distance due to the friction force between the connecting pin 34 and the elongated groove 52 and the friction force between the guide block 51 and the guide groove 32, so that the large slide 3 and the small slide 5 are not easily installed in place in the insert pocket 33 by the distance of being staggered in the horizontal direction and the height direction, as shown in fig. 1 to 10, in some embodiments of the present utility model, a limiting piece 61 is slidably arranged on the mounting seat 1 along the width direction, an elastic piece 62 is arranged between the limiting piece 61 and the mounting seat 1, and the limiting piece 61 is positioned at one side of the large sliding block 3 along the width direction; after the mold is opened, one end of the limiting piece 61, which faces the large slide block 3 along the width direction, is abutted against one side surface of the small slide block 5, which faces the rear mold core 2; an unlocking piece 35 is arranged on the large sliding block 3 at a position corresponding to the limiting piece 61, and when the large sliding block 3 is positioned at the die closing position, the unlocking piece 35 pushes the limiting piece 61 to retract and separate from the small sliding block 5. When the secondary slide block structure of the embodiment is used for closing the mold, the driving assembly is started to drive the large slide block 3 to move along the horizontal direction towards the rear mold core 2, at this time, because the limiting piece 61 is abutted against the side surface of the small slide block 5 towards the rear mold core 2 to limit the freedom of the small slide block 5 to move towards the rear mold core 2 along the horizontal direction, the small slide block 5 can not move along with the large slide block 3 under the action of the friction force between the connecting pin 34 and the strip groove 52 and the friction force between the guide block 51 and the guide groove 32 during the process that the large slide block 3 moves towards the rear mold core 2 along the horizontal direction towards the rear mold core 2 to ensure that the small slide block 5 moves along the horizontal direction towards the rear mold core 2, the small slide block 5 is lifted relatively to the large slide block 3 along the height direction under the guiding action of the guide groove 32, so that after the large slide block 3 moves to reach the die assembly position, the large slide block 3 and the small slide block 5 are staggered by a sufficient distance in the horizontal direction and the height direction, and the insert hardware fitting 4 is conveniently installed in place in the embedded groove 33; then force is applied to push the small sliding block 5, because the unlocking piece 35 pushes the limiting piece 61 to compress the elastic piece 62 to retract away from the small sliding block 5 along the width direction to be separated from the small sliding block 5, the limitation on the freedom degree of the small sliding block 5 to move towards the rear die core 2 along the horizontal direction is relieved, so that the small sliding block 5 can move downwards while horizontally moving towards the rear die core 2 relative to the large sliding block 3 under the guiding action of the guide groove 32, the purpose of driving the small sliding block 5 to move obliquely downwards to clamp on the basis of installing the insert hardware fitting 4 in place in the embedding groove 33 is achieved, and therefore the insert hardware fitting 4 can be effectively prevented from being shoveled and the risk of die pressing caused to the insert hardware fitting 4 is reduced; the efficiency is improved and the repair cost of the injection mold equipped with the secondary slide structure of the embodiment is reduced for subsequent production. After the mold closing of the secondary slide block structure of the embodiment is completed, the connecting pin 34 is abutted against a side surrounding wall of the strip groove 52, which is away from the rear mold core 2 along the horizontal direction; when the secondary slide block structure of the embodiment is opened, the connecting needle 34 and the strip groove 52 are used for mutually abutting the surrounding wall on one side away from the rear mold core 2 along the horizontal direction, so that in the process of starting the driving assembly to drive the large slide block 3 to move along the horizontal direction towards the direction away from the rear mold core 2, the small slide block 5 moves to the mold opening position along the horizontal direction along with the large slide block 3 towards the direction away from the rear mold core 2, and the accurate mold opening of the secondary slide block structure of the embodiment is realized, so that an injection molding product is ejected; and after the die opening is completed, the unlocking piece 35 removes the pushing force to the limiting piece 61, so that the limiting piece 61 moves towards the small sliding block 5 along the width direction under the action of the elastic restoring force of the elastic piece 62 and is abutted against the side surface of the small sliding block 5 towards the rear die core 2, the degree of freedom of the small sliding block 5 moving towards the rear die core 2 along the horizontal direction is limited, and therefore the risk that the small sliding block 5 shovels the insert hardware fitting 4 and the compression die is caused to the insert hardware fitting 4 is effectively avoided when the secondary sliding block structure of the embodiment is subjected to die assembly.

As shown in fig. 5, 6, 7 and 10, in some embodiments of the present utility model, the unlocking member 35 is disposed parallel to the horizontal direction, one end of the unlocking member 35 facing the rear mold core 2 is provided with a V-shaped portion 351, and the size of the V-shaped portion 351 gradually increases along the horizontal direction in a direction away from the rear mold core 2; a blocking part 611 is convexly arranged at one end of the limiting piece 61, which faces the small sliding block 5 along the width direction; after the mold is opened, the blocking part 611 abuts against a side surface of the small slide block 5 facing the rear mold core 2, and the projection of the limiting piece 61 along the width direction facing the end surface of one end of the small slide block 5 along the horizontal direction falls on the V-shaped part 351; when the large slide 3 is at the mold closing position, one end of the stopper 61 facing the small slide 5 in the width direction abuts against the large diameter end of the V-shaped portion 351, and the stopper 611 is retracted to be separated from the small slide 5. After the secondary slide block structure of the embodiment is opened, the limiting piece 61 moves towards the small slide block 5 to reset along the width direction under the action of the elastic restoring force of the elastic piece 62, so that the blocking part 611 is abutted against the side surface of the small slide block 5 towards the rear mold core 2 again to limit, and the limiting piece 61 is positioned at one side of the tip (small diameter end) of the V-shaped part 351, which is away from the small slide block 5 along the width direction; therefore, in the process of moving the large slide 3 along the horizontal direction towards the rear mold insert 2 until the large slide 3 reaches the mold closing position, the end face of the limit piece 61 along the width direction towards the small slide 5 is firstly abutted against the small diameter end of the V-shaped portion 351 and gradually transits to be abutted against the large diameter end of the V-shaped portion 351, so that the limit piece 61 and the blocking portion 611 are gradually pushed to compress the elastic piece 62 along the width direction to retract towards the direction away from the small slide 5, when the large slide 3 reaches the mold closing position, the end face of the limit piece 61 along the width direction towards the small slide 5 is abutted against the side wall of the large diameter end of the V-shaped portion 351, and the blocking portion 611 and the small slide 5 are completely staggered in the horizontal direction (namely, the projection of the blocking portion 611 along the horizontal direction does not fall in the range of the small slide 5), so that the small slide 5 can move along the horizontal direction towards the rear mold insert 2 and simultaneously move downwards towards the mold closing position relative to the large slide 3 under the guiding effect of the guide groove 32, the mold insert 4 can be moved downwards towards the mold closing position, the mold closing position is realized, the fitting 4 is effectively prevented from being damaged by the fitting 4, and the risk of die 4 is reduced.

In order to further improve the limiting effect on the degree of freedom of the small slide 5 moving toward the rear mold core 2 along the horizontal direction, as shown in fig. 5, in some embodiments of the present utility model, two limiting members 61 are provided, and two limiting members 61 are symmetrically disposed on two sides of the large slide 3 along the width direction.

In order to improve the resetting capability of the limiting piece 61 under the action of the elastic piece 62, the limiting effect on the degree of freedom of the small slide 5 moving towards the rear mold core 2 along the horizontal direction is ensured; in some embodiments of the present utility model, the elastic member 62 is provided as a spring, which is arranged in the width direction, and one end of the spring is connected to the stopper 61, and the other end is connected to the mount 1.

In a specific application, the type of the elastic member 62 may be reasonably selected according to the use condition, for example, in other embodiments, the elastic member 62 is provided as a rubber elastic pad, an elastic membrane, or the like.

As shown in fig. 1 to 4 and 9, in some embodiments of the present utility model, an inclined through groove 53 is disposed on a side of the small slider 5 facing away from the rear mold core 2, and the inclined through groove 53 gradually inclines from top to bottom in a direction away from the rear mold core 2; the secondary slide block structure further comprises an inclined guide post 71, wherein the inclined guide post 71 is arranged on the front die core and moves along the height direction along with the front die core; the oblique guide post 71 is matched with the oblique through groove 53. After the secondary slide block structure of the embodiment is clamped until the large slide block 3 moves to reach the clamping position, the inclined guide post 71 descends along the height direction along with the front mold core, and because the inclined guide post 71 has the same inclination angle with the inclined through groove 53 and is matched with the inclined through groove 53, the inclined guide post 71 gradually pushes the small slide block 5 to move downwards while horizontally moving close to the rear mold core 2 relative to the large slide block 3 under the guiding action of the guide groove 32 in the downward moving process, so that the small slide block 5 is driven to move downwards obliquely to clamp on the basis that the insert hardware fitting 4 is installed in place in the embedding groove 33, thereby effectively avoiding the damage of the insert hardware fitting 4 due to shoveling and reducing the risk of compression molding on the insert hardware fitting 4. It can be understood that, because the inclined through groove 53 penetrates the small slide 5 along the side away from the rear mold core 2 in the horizontal direction, the small slide 5 is not driven to generate relative displacement with respect to the large slide 3 in the process of opening the mold of the secondary slide structure of the embodiment and raising the inclined guide post 71 along with the front mold core in the height direction.

As shown in fig. 1 to 4 and 9, in some embodiments of the present utility model, a side of the small slider 5 facing away from the rear mold core 2 is provided with a slope surface 54, and the slope surface 54 is arranged parallel to the inclined through groove 53; the secondary slide block structure further comprises a shovel base 72, wherein the shovel base 72 is arranged on the front die core and moves along the height direction along with the front die core; the shovel base 72 is provided with an inclined surface along a horizontal direction toward one side of the rear mold core 2, and the inclined surface is matched with the inclined surface 54. After the secondary slide block structure of the embodiment is clamped until the large slide block 3 moves to reach the clamping position, the inclined guide post 71 and the shovel base 72 descend along the height direction along with the front mold core, so that the inclined guide post 71 and the shovel base 72 are respectively in abutting contact with the surrounding wall and the inclined surface 54 of the inclined through groove 53, the contact area with the small slide block 5 is increased, the small slide block 5 is precisely and stably pushed to move horizontally relative to the large slide block 3 under the guiding action of the guide groove 32 and move downwards to reach the clamping position while approaching to the rear mold core 2, the purpose that the small slide block 5 is driven to move obliquely downwards to clamp the insert hardware fitting 4 in place on the basis of installing the insert hardware fitting 4 in the embedded groove 33 is achieved, the risk of damaging the insert hardware fitting 4 by shoveling is effectively avoided, and the risk of pressing the insert hardware fitting 4 is further reduced.

As shown in fig. 2 and 9, in some embodiments of the present utility model, a first through groove 36 is formed on the large slider 3 at a position corresponding to the inclined guide post 71 along a height direction, and the first through groove 36 is parallel to the horizontal direction and is matched with the inclined guide post 71; the large sliding block 3 is provided with a second through groove 37 penetrating through the position corresponding to the shovel base 72 along the height direction, and the second through groove 37 is matched with the shovel base 72. In the process that the inclined guide post 71 and the shovel base 72 descend along the height direction along with the front mold core, the first through groove 36 and the second through groove 37 can respectively provide avoidance space for the inclined guide post 71 and the shovel base 72, so that the inclined guide post 71 and the shovel base 72 are ensured to descend in place along the height direction, and the small slide block 5 is ensured to be accurately pushed to move downwards to reach the mold closing position while horizontally moving close to the rear mold core 2 relative to the large slide block 3 under the guiding action of the guide groove 32.

In order to ensure that the moment applied by the driving assembly is large enough to drive the large slide block 3 to stably move along the horizontal direction, as shown in fig. 1, 3 and 5, preferably, the driving assembly comprises an oil cylinder 8, wherein the oil cylinder 8 is arranged at one end of the mounting seat 1, which is away from the rear mold core 2, and the oil cylinder 8 is arranged in parallel with the horizontal direction; the piston rod of the oil cylinder 8 is connected with the large sliding block 3. Of course, in other embodiments, the driving assembly may be configured as a cylinder, an electric telescopic rod, a linear motor, or a jack.

As shown in fig. 1 and 3, specifically, a T-shaped groove 38 is formed in the end of the large slider 3 facing the oil cylinder 8 in the horizontal direction in a penetrating manner in the height direction, and the small diameter end of the T-shaped groove 38 is disposed in communication with the large diameter end of the T-shaped groove 38 on the side facing the oil cylinder 8; a connecting table 81 is arranged on a piston rod of the oil cylinder 8, and the connecting table 81 is matched with the large-diameter end of the T-shaped groove 38. Because the size of the connecting table 81 is larger than that of the small-diameter end of the T-shaped groove 38, the connecting table 81 can stably drive the large sliding block 3 to move along the horizontal direction under the driving of the oil cylinder 8; and meanwhile, the T-shaped groove 38 penetrates through the large sliding block 3 along the height direction so as to assemble or disassemble the oil cylinder 8 and the large sliding block 3.

Example two

Fig. 1 to 10 show an injection mold according to the present embodiment, which includes the secondary slide structure according to the first embodiment. In the secondary slide block structure in the injection mold of the embodiment, the guide blocks 51 which are slidably connected in the guide grooves 32 are respectively arranged on two sides of the small slide block 5 along the width direction, the guide grooves 32 gradually incline upwards along the horizontal direction, and the connecting needle 34 is slidably arranged in the strip groove 52 along the horizontal direction; when the secondary slide block structure is subjected to die assembly, the driving component is started to drive the large slide block 3 to move towards the close rear die core 2 along the horizontal direction, and at the moment, because the connecting pin 34 is arranged in the strip groove 52 in a sliding way and is not in abutting connection with the surrounding wall of the strip groove 52 towards the rear die core 2 along the horizontal direction, in the process that the large slide block 3 moves towards the close rear die core 2 along the horizontal direction to the large slide block 3 to reach the die assembly position, the large slide block 3 moves towards the close rear die core 2 along the horizontal direction relative to the small slide block 5, and the small slide block 5 rises relative to the large slide block 3 along the height direction under the guiding action of the guide groove 32, so that after the large slide block 3 moves to reach the die assembly position, the large slide block 3 and the small slide block 5 are staggered for a distance along the horizontal direction and the height direction, and the fitting 4 is convenient to mount in place in the embedded groove 33; then force is applied to push the small slide block 5, the small slide block 5 can horizontally move close to the rear mold core 2 relative to the large slide block 3 under the guiding action of the guide groove 32 and simultaneously move downwards, so that the small slide block 5 is driven to move downwards obliquely to mold on the basis of installing the insert hardware fitting 4 in place in the embedded groove 33, and the insert hardware fitting 4 can be effectively prevented from being shoveled and the risk of molding the insert hardware fitting 4 is reduced; the efficiency is improved and the die repairing cost of the injection die is reduced for subsequent production. The large slide block 3 in the secondary slide block structure is connected to the mounting seat 1 in a sliding manner along the horizontal direction, and after the die assembly of the secondary slide block structure is completed, the connecting needle 34 is abutted against one side surrounding wall of the strip groove 52, which is away from the rear die core 2 along the horizontal direction; when the secondary slide block structure is opened, the connecting needle 34 and the strip groove 52 are utilized to be abutted against each other along one side of the surrounding wall of the rear mold core 2 in the horizontal direction, so that in the process that the large slide block 3 is driven by the starting driving assembly to move along the horizontal direction towards the position away from the rear mold core 2, the small slide block 5 moves to the mold opening position along the horizontal direction along with the large slide block 3, and the precise mold opening of the secondary slide block structure is realized, so that an injection molding product is ejected.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (10)

1. A secondary slider structure, comprising:

The mounting seat (1) is used for being mounted on one side of the rear die core (2);

The large sliding block (3) is connected to the mounting seat (1) in a sliding manner along the horizontal direction and is driven by the driving component to be close to or far away from the rear die core (2); the upper end of the large sliding block (3) along the height direction is provided with a mounting groove (31), and the mounting groove (31) penetrates through the large sliding block (3) along the horizontal direction; two surrounding walls which are oppositely arranged in the mounting groove (31) along the width direction are respectively provided with a guide groove (32) in a concave manner, and the guide grooves (32) are gradually upwards inclined along the horizontal direction towards the direction deviating from the rear die core (2); an embedding groove (33) is concavely formed in one end of the inner bottom wall of the mounting groove (31) facing the rear die core (2), and the embedding groove (33) is used for embedding the embedded hardware fitting (4);

The small sliding blocks (5) are respectively provided with guide blocks (51) in a protruding mode along the two sides of the width direction, and the guide blocks (51) are connected in the guide grooves (32) in a sliding mode; the lower end of the small sliding block (5) along the height direction is provided with a strip groove (52), and the strip groove (52) is arranged parallel to the horizontal direction;

A connecting pin (34) protruding from the inner bottom wall of the mounting groove (31) and slidably disposed in the elongated groove (52); after the die is assembled, the connecting pin (34) is abutted against the surrounding wall of the long strip groove (52) deviating from the rear die core (2).

2. The secondary slide block structure according to claim 1, wherein a limiting piece (61) is slidably arranged on the mounting base (1) along the width direction, an elastic piece (62) is arranged between the limiting piece (61) and the mounting base (1), and the limiting piece (61) is located at one side of the large slide block (3) along the width direction; after the die is opened, one end of the limiting piece (61) facing the large sliding block (3) along the width direction is abutted against one side surface of the small sliding block (5) facing the rear die core (2); an unlocking piece (35) is arranged on the large sliding block (3) at a position corresponding to the limiting piece (61), and when the large sliding block (3) is positioned at the die closing position, the unlocking piece (35) pushes the limiting piece (61) to retract and separate from the small sliding block (5).

3. The secondary slide block structure according to claim 2, wherein the unlocking member (35) is arranged parallel to the horizontal direction, one end of the unlocking member (35) facing the rear mold core (2) is provided with a V-shaped portion (351), and the size of the V-shaped portion (351) gradually increases along the horizontal direction in a direction away from the rear mold core (2); a blocking part (611) is convexly arranged at one end of the limiting piece (61) towards the small sliding block (5) along the width direction; after the die is opened, the blocking part (611) is abutted against the side surface of the small sliding block (5) facing the rear die core (2), and the projection of the limiting piece (61) facing the end surface of one end of the small sliding block (5) along the width direction along the horizontal direction falls on the V-shaped part (351); when the large slide block (3) is positioned at the die closing position, one end of the limiting piece (61) facing the small slide block (5) along the width direction is abutted against the large diameter end of the V-shaped part (351), and the blocking part (611) is retracted to be separated from the small slide block (5).

4. A secondary slide structure according to claim 2 or 3, characterized in that two of the stoppers (61) are provided, and the two stoppers (61) are symmetrically provided on both sides of the large slide (3) in the width direction.

5. A secondary slide structure according to claim 2, characterized in that the elastic member (62) is provided as a spring, which is arranged in the width direction, one end of the spring being connected to a stopper (61) and the other end being connected to the mounting base (1).

6. The secondary slide block structure according to claim 1 or 2, wherein an inclined through groove (53) is formed on one side of the small slide block (5) away from the rear mold core (2), and the inclined through groove (53) gradually inclines from top to bottom in a direction away from the rear mold core (2); the secondary sliding block structure further comprises an inclined guide post (71), wherein the inclined guide post (71) is arranged on the front die core and moves along the height direction along with the front die core; the inclined guide post (71) is matched with the inclined through groove (53).

7. The secondary slide block structure according to claim 6, wherein a side of the small slide block (5) facing away from the rear mold core (2) is provided with a slope surface (54), and the slope surface (54) is arranged parallel to the inclined through groove (53); the secondary sliding block structure further comprises a shovel base (72), wherein the shovel base (72) is arranged on the front die core and moves along the height direction along with the front die core; the shovel base (72) is provided with an inclined surface along the horizontal direction towards one side of the rear die core (2), and the inclined surface is matched with the inclined surface (54).

8. The secondary slide block structure according to claim 1, wherein the driving assembly comprises an oil cylinder (8), the oil cylinder (8) is arranged at one end of the mounting seat (1) away from the rear mold core (2), and the oil cylinder (8) is arranged in parallel to the horizontal direction; the piston rod of the oil cylinder (8) is connected with the large sliding block (3).

9. The secondary slide block structure according to claim 8, wherein a T-shaped groove (38) is formed in the end of the large slide block (3) facing the oil cylinder (8) in the horizontal direction in a penetrating manner in the height direction, and the small diameter end of the T-shaped groove (38) is communicated with the large diameter end of the T-shaped groove (38) and is arranged on one side facing the oil cylinder (8); a connecting table (81) is arranged on a piston rod of the oil cylinder (8), and the connecting table (81) is matched with the large-diameter end of the T-shaped groove (38).

10. An injection mold comprising a secondary slide structure as claimed in any one of claims 1 to 9.