CN218535489U - Core-pulling sliding block limiting mechanism of injection mold - Google Patents

Abstract

The utility model provides an injection mold's slider stop gear of loosing core, including fixed die plate and movable mould board, fixedly connected with oblique guide arm on the fixed die plate, it is connected with the slider of loosing core to move along upper and lower direction on the movable mould board, it supplies the leading-in oblique guide hole of oblique guide arm cooperation to be equipped with on the slider to loose core, movable mould board and loose core are equipped with spacing portion between the slider, spacing portion includes spacing spheroid and elastic component, be equipped with the guide way of opening direction court slider of loosing core on the movable mould board, spacing spheroid and elastic component all set up in the guide way, the guide way supplies spacing spheroid to roll along guide way length direction, the elastic component is used for driving spacing spheroid all the time and keeps away from the guide way and removes, be equipped with the first spacing recess that supplies half embedding of spacing spheroid on the slider of loosing core, when the mould die sinking, oblique guide hole is deviate from when oblique guide arm, half embedding of elastic component drive spacing spheroid is in first spacing recess. This stop gear can effectively avoid loosing core the falling after the slider drawing of patterns, prevents the mould volume increase simultaneously.

Description

Core-pulling sliding block limiting mechanism of injection mold

Technical Field

The utility model relates to an injection mold technical field particularly, relates to an injection mold's slider stop gear of loosing core.

Background

When the injection mold is used for producing a product, a core pulling structure with an inclined guide rod and an inclined guide hole is usually required to pull out a barb hole of the product, an inclined guide rod is fixedly arranged on a fixed mold plate, a core pulling slide block is arranged on a movable mold plate in a sliding mode, the inclined guide hole is formed in the core pulling slide block, and when the mold is opened, the core pulling slide block is driven to be matched with the inclined guide hole through the inclined guide rod to pull the core.

Chinese patent with publication number CN113619034a discloses a plastic pipe injection mold skyward side slide block limiting mechanism, which can solve the problem of avoiding the core-pulling slide block from falling down, but the limiting mechanism protrudes out of the mold, so that the mold volume is increased easily, and the mold opening cost of the mold is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides an injection mold's slider stop gear of loosing core, can effectively avoid loosing core the falling after the slider drawing of patterns, prevents the increase of mould volume simultaneously.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides an injection mold's slider stop gear of loosing core, includes fixed die plate and movable mould board, fixedly connected with oblique guide arm on the fixed die plate, it has the slider of loosing core to move along upper and lower direction on the movable mould board, it supplies the leading-in oblique guide hole of oblique guide arm cooperation to be equipped with on the slider of loosing core, movable mould board and loose core are equipped with spacing portion between the slider, spacing portion includes spacing spheroid and elastic component, be equipped with opening direction on the movable mould board towards the guide way of the slider of loosing core, spacing spheroid and elastic component all set up in the guide way, the guide way supplies spacing spheroid rolls along guide way length direction, the elastic component is used for the drive all the time the guide way removal is kept away from to spacing spheroid, it supplies to loose core to be equipped with on the slider of loosing core half the first spacing recess of embedding of spacing spheroid, when the mould die sinking, deviate from oblique guide hole when oblique guide arm, the elastic component drive half of spacing spheroid imbeds in first spacing recess.

The utility model has the advantages that: the limiting ball body and the elastic piece are arranged, so that the limiting ball body is driven by the elastic piece to move towards the core-pulling slide block all the time, after the inclined guide rod is separated from the inclined guide hole, one half of the limiting ball body is embedded into the first limiting groove, and the core-pulling slide block is limited after being demoulded, so that the core-pulling slide block cannot move downwards under the action of gravity, and therefore when a mold is closed, the inclined guide rod is favorably placed into the inclined guide hole, and the mold closing reliability is improved; the guide groove is arranged, so that motion guide can be provided for the limiting ball body and the elastic part, the moving stability of the limiting ball body and the elastic part is improved, only half of the limiting ball body is embedded into the first limiting groove, the limiting ball body is convenient to be separated from the first limiting groove, after the inclined guide rod is arranged in the inclined guide hole, the inclined guide rod can drive the core pulling slide block to move downwards, and the core pulling slide block is convenient to move in a matched mode; meanwhile, the limiting ball body and the elastic piece are arranged in the guide groove, so that the limiting part is arranged in the die, the size of the die is prevented from being enlarged, the structure is reliable to set, and the die opening cost of the die is reduced.

Preferably, the elastic part comprises a spiral spring, the left end of the spiral spring is abutted against the bottom of the guide groove, and the right end of the spiral spring is abutted against the limiting ball body. Through adopting above-mentioned structure, make spacing spheroid by stable promotion, improve the reliability that spacing spheroid removed, and coil spring's simple structure improves the reliability of elastic component work.

Preferably, the limiting ball body is a steel ball. Through adopting above-mentioned structure, make spacing spheroid's structural strength high, improve spacing reliability of spacing portion.

Preferably, the first limiting groove is a hemispherical groove matched with the limiting ball body. Through adopting above-mentioned structure, spacing spheroid can laminate at the cell wall of first spacing recess, makes the stable embedding of spacing spheroid in first spacing recess, improves spacing reliability of spacing portion.

Preferably, the core pulling slide block is further provided with a second limiting groove for half of the limiting ball to be embedded into, and after the die is closed, the elastic part drives half of the limiting ball to be embedded into the second limiting groove. Through adopting above-mentioned structure, obtain spacingly behind the slider compound die of loosing core, avoid loosing core the slider compound die after the removal appears, improve the stability of the slider compound die of loosing core.

Preferably, the core pulling slide block is provided with a T-shaped slide block, the movable die plate is provided with a T-shaped sliding chute in sliding fit with the T-shaped slide block, and the T-shaped sliding chute is arranged along the vertical direction. Through adopting above-mentioned structure, make the slider of loosing core effectively move to be connected on the movable mould board, improve the slider of loosing core along the vertical stability of moving from top to bottom, T type structural design can restrict the slider of loosing core and only move from top to bottom simultaneously, improves the reliability that the slider of loosing core removed.

Drawings

Fig. 1 is a schematic structural view of a core-pulling slider limiting mechanism of an injection mold according to the present invention during mold closing;

FIG. 2 isbase:Sub>A cross-sectional view taken at A-A of FIG. 1;

fig. 3 is a schematic structural view of a core-pulling slider limiting mechanism of an injection mold according to the present invention when the mold is opened;

description of reference numerals:

1. fixing a template; 2. moving the template; 21. a guide groove; 22. a T-shaped chute; 3. an inclined guide rod; 4. a core-pulling slide block; 41. oblique guide holes; 42. a first limit groove; 43. a second limit groove; 44. a T-shaped slider; 5. a limiting part; 51. a limiting ball body; 52. an elastic member.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 3, the utility model provides an injection mold's slider stop gear of loosing core, including fixed die plate 1, fixed die core, movable mould board 2 and movable mould core, fixed die core fixed connection is on fixed die plate 1, movable mould core fixed connection is on movable mould board 2, fixedly connected with oblique guide arm 3 on the fixed die plate 1, it has slider 4 of loosing core to move to be connected with along upper and lower direction on the movable mould board 2, it supplies oblique guide arm 3 to cooperate leading-in oblique guide hole 41 to be equipped with on the slider 4 of loosing core, behind the mould compound die, fixed die core, movable mould core and the slider 4 of loosing core are formed with the die cavity of moulding plastics jointly.

Obtain spacingly in order to make behind the 4 drawing of patterns of loosing core slider, be equipped with spacing portion 5 between movable mould board 2 and the slider 4 of loosing core, spacing portion 5 includes spacing spheroid 51 and elastic component 52, be equipped with opening direction on the movable mould board 2 towards the guide way 21 of the slider 4 of loosing core, spacing spheroid 51 and elastic component 52 all set up in the guide way 21, guide way 21 supplies spacing spheroid 51 rolls along guide way 21 length direction, elastic component 52 is used for the drive all the time spacing spheroid 51 is kept away from the guide way 21 and is removed, be equipped with the confession on the slider 4 of loosing core first spacing recess 42 of half embedding of spacing spheroid 51, when the mould die sinking, deviate from oblique guide hole 41 when oblique guide arm 3, elastic component 52 drives half embedding of spacing spheroid 51 is in first spacing recess 42.

In order to improve the reliability of the movement of the limiting ball 51, the elastic member 52 includes a coil spring, the left end of the coil spring abuts against the bottom of the guide groove 21, and the right end of the coil spring abuts against the limiting ball 51, so that the limiting ball 51 is stably pushed, the structure of the coil spring is simple, and the reliability of the operation of the elastic member 52 is improved.

In order to improve the reliability of the limiting portion 5, the limiting ball 51 is a steel ball, so that the structural strength of the limiting ball 51 is high, the first limiting groove 42 is a hemispherical groove matched with the steel ball, and the steel ball can be attached to the groove wall of the first limiting groove 42, so that the limiting ball 51 is stably embedded into the first limiting groove 42.

In order to improve the stability of the die assembly of the core-pulling sliding block 4, the core-pulling sliding block 4 is further provided with a second limiting groove 43 for embedding a half of the limiting ball body 51, and after the die assembly of the die, the elastic piece 52 drives the half of the limiting ball body 51 to be embedded into the second limiting groove 43, so that the core-pulling sliding block 4 is limited after the die assembly, and the core-pulling sliding block 4 is prevented from moving after the die assembly.

In order to improve the stability of the core pulling sliding block 4 moving along the vertical up-down direction, the core pulling sliding block 4 is provided with a T-shaped sliding block 44, the movable mould plate 2 is provided with a T-shaped sliding groove 22 in sliding fit with the T-shaped sliding block 44, the T-shaped sliding groove 22 is arranged along the up-down direction, and the T-shaped structural design can limit the core pulling sliding block 4 to move only along the up-down direction, so that the reliability of the movement of the core pulling sliding block 4 is improved.

The use process comprises the following steps: when the mold is closed, the movable mold plate 2 moves towards the fixed mold plate 1, the inclined guide rod 3 is placed into the inclined guide hole 41, the inclined guide rod 3 drives the core-pulling slide block 4 to move downwards, and meanwhile, the spiral spring pushes the steel balls to move towards the core-pulling slide block 4 until the steel balls are embedded into the second limiting groove 43 of the core-pulling slide block 4; when the mold is opened, the movable mold plate 2 is far away from the fixed mold plate 1 and moves, the inclined guide rod 3 is withdrawn from the inclined guide hole 41, the inclined guide rod 3 drives the core-pulling slide block 4 to move upwards, meanwhile, the steel ball is pushed by the spiral spring to move towards the core-pulling slide block 4 until the steel ball is embedded into the first limiting groove 42 of the core-pulling slide block 4, the core-pulling slide block 4 is limited after being demoulded, and the core-pulling slide block 4 is prevented from sliding downwards due to gravity.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.

Claims (6)

1. A core-pulling slide block limiting mechanism of an injection mold comprises a fixed mold plate (1) and a movable mold plate (2), an inclined guide rod (3) is fixedly connected to the fixed die plate (1), a core-pulling sliding block (4) is movably connected to the movable die plate (2) along the up-down direction, an inclined guide hole (41) for guiding the inclined guide rod (3) in a matching way is arranged on the core-pulling sliding block (4), it is characterized in that a limit part (5) is arranged between the movable mould plate (2) and the core-pulling slide block (4), the limiting part (5) comprises a limiting ball body (51) and an elastic piece (52), the movable mould plate (2) is provided with a guide groove (21) with an opening facing the core-pulling slide block (4), the limiting ball body (51) and the elastic piece (52) are arranged in the guide groove (21), the guide groove (21) is used for the limiting ball body (51) to roll along the length direction of the guide groove (21), the elastic piece (52) is always used for driving the limiting ball body (51) to move away from the guide groove (21), a first limiting groove (42) for half of the limiting ball body (51) to be embedded is arranged on the core-pulling sliding block (4), when the mould is opened, when the inclined guide rod (3) is separated from the inclined guide hole (41), the elastic piece (52) drives half of the limiting ball body (51) to be embedded in the first limiting groove (42).

2. The core pulling slide block limiting mechanism of the injection mold according to claim 1, wherein the elastic part (52) comprises a coil spring, the left end of the coil spring abuts against the groove bottom of the guide groove (21), and the right end of the coil spring abuts against the limiting ball body (51).

3. The core pulling slide block limiting mechanism of the injection mold according to claim 1, wherein the limiting ball (51) is a steel ball.

4. The core pulling slide block limiting mechanism of an injection mold according to claim 1, wherein the first limiting groove (42) is a hemispherical groove matched with the limiting sphere (51).

5. The core pulling slide block limiting mechanism of the injection mold according to claim 1, wherein the core pulling slide block (4) is further provided with a second limiting groove (43) for half of the limiting ball body (51) to be embedded into, and after the mold is closed, the elastic member (52) drives half of the limiting ball body (51) to be embedded into the second limiting groove (43).

6. The core-pulling sliding block limiting mechanism of the injection mold according to claim 1, wherein the core-pulling sliding block (4) is provided with a T-shaped sliding block (44), the movable mold plate (2) is provided with a T-shaped sliding groove (22) which is in sliding fit with the T-shaped sliding block (44), and the T-shaped sliding groove (22) is arranged in the vertical direction.

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