CN220904018U

CN220904018U - Core pulling structure with multiple sliding blocks

Info

Publication number: CN220904018U
Application number: CN202322334015.9U
Authority: CN
Inventors: 胡路遥; 刘荣晨; 张峻; 刘春宇
Original assignee: Ningbo Jifeng Auto Parts Co Ltd
Current assignee: Ningbo Jifeng Auto Parts Co Ltd
Priority date: 2023-08-30
Filing date: 2023-08-30
Publication date: 2024-05-07
Anticipated expiration: 2033-08-30

Abstract

The utility model belongs to the field of dies, and provides a core pulling structure with multiple sliding blocks, which is used for forming angles Kong Daokou, straight hole back-off and inner groove back-off on the side wall of a workpiece, and comprises the following steps: the fixed die holder is symmetrically provided with a plurality of inclined guide posts and traction posts, the inclined guide posts are close to the middle part of the fixed die holder, and the traction posts are positioned at the periphery of the fixed die holder; the movable die holder is movably arranged below the fixed die holder, and a product cavity is formed between the fixed die holder and the movable die holder after the fixed die holder is attached to the movable die holder; and the molding seat is used for molding the straight hole back-off and is symmetrically arranged on the movable die holder. Compared with the prior art, the utility model has the advantages that when the angle Kong Daokou, the straight hole back-off and the inner groove back-off on the product can be formed by one-time injection molding through the forming seat, the driving block and the inclined sliding block, the workpiece can smoothly finish the demoulding action after the fixed die holder and the movable die holder are separated in a step-by-step core pulling mode, the stability is good, and the working efficiency is improved to some extent.

Description

Core pulling structure with multiple sliding blocks

Technical Field

The utility model belongs to the field of dies, and particularly relates to a core pulling structure with multiple sliding blocks.

Background

With the rapid development of machinery, products gradually come into diversity, and how to rapidly manufacture products with relatively complex molding structures becomes an important problem.

The existing mould is often selective injection moulding when the product with complex structure is formed, namely, a worker uses the mould to carry out injection moulding on one part of the structure on the product, and the other part of the structure is mechanically processed through the subsequent steps, so that the operation is not facilitated, and when the angle Kong Daokou shown in fig. 1, the straight hole back-off 11 and the inner groove back-off 12 are simultaneously formed on the side edge structure of the product, the demoulding cannot be directly carried out after the workpiece is formed due to different angles and directions, the workpiece is extremely easy to damage in the demoulding process, the quality and the qualification rate of the workpiece are influenced, and the whole working efficiency is also seriously influenced when the step-by-step processing mode is adopted for manufacturing.

Disclosure of Invention

Aiming at the defects existing in the prior art, the technical problems to be solved by the utility model are as follows: the multi-slide block core pulling structure has the advantages that the integral structure is simple, when the angle Kong Daokou, the straight hole back-off and the inner groove back-off on a product can be formed through one-time injection molding, the workpiece can smoothly finish the demoulding action after the fixed die holder and the movable die holder are separated in a step-by-step core pulling mode, the stability is good, and the working efficiency is improved.

The utility model solves the technical problems by adopting the technical scheme that the utility model provides a multi-slider core pulling structure which is used for forming angles Kong Daokou, straight hole back-off and inner groove back-off on the side wall of a workpiece and comprises the following steps: the fixed die holder is symmetrically provided with a plurality of inclined guide posts and traction posts, the inclined guide posts are close to the middle of the fixed die holder, and the traction posts are positioned at the periphery of the fixed die holder;

The movable die holder is movably arranged below the fixed die holder, and a product cavity is formed between the fixed die holder and the movable die holder after the fixed die holder is attached to the movable die holder;

The molding seat is symmetrically arranged on the movable die holder, a traction groove is formed in the molding seat, a traction part is arranged on the traction column, and the traction part is movably abutted against the traction groove and used for pushing the molding seat to be close to or far away from the product cavity along the horizontal direction;

The driving block and the inclined sliding block are movably arranged in the forming seat and are movably clamped with each other, the driving block is used for forming the angle Kong Daokou, the inclined sliding block is used for forming the inner groove back-off, and the inclined guide pillar is movably inserted into the driving block, so that the driving block moves along the inclined direction relative to the forming seat, and the inclined sliding block is driven to move along the horizontal direction of the side wall of the workpiece and separate from the inner groove back-off;

When the fixed die seat drives the inclined guide post and the traction post to be far away from the movable die seat, the inclined sliding block can be separated from the inner groove back-off due to the fact that the driving block moves along the inclined direction, and when the traction portion abuts against the forming seat, the driving block and the inclined sliding block are enabled to be far away from a formed workpiece along the horizontal direction synchronously.

In the above-mentioned multi-slider core pulling structure, the driving block includes:

The inclined guide hole is formed in the movable block, and the inclined guide pillar is movably inserted into the inclined guide hole and used for driving the movable block to move along an inclined direction relative to the forming seat;

The traction block is connected to the bottom of the moving block and movably clamped with the inclined sliding block, the traction block and the moving block are both used for forming the angle Kong Daokou, and the traction block is used for driving the inclined sliding block to move along the horizontal direction of the side wall of the workpiece and separate from the inverted buckle of the inner groove when moving along the inclined direction relative to the forming seat.

In the core pulling structure of the multiple sliding blocks, a first guide groove is formed in the forming seat, the bottom wall of the first guide groove is obliquely arranged, and the moving block is movably clamped in the first guide groove and can reciprocate along the oblique direction of the bottom wall of the first guide groove.

In the core pulling structure of the multiple sliding blocks, the forming seat is further provided with a second guide groove communicated with the first guide groove, the bottom wall of the second guide groove is parallel to the bottom wall of the first guide groove, and the traction block is movably clamped in the second guide groove.

In the above-mentioned multi-slider core pulling structure, the inclined slider includes:

The connecting block is obliquely arranged and movably arranged in the second guide groove, a dovetail groove is formed in the side wall of the traction block, a dovetail block is outwards extended in the length direction of the connecting block, and the dovetail block is movably clamped in the dovetail groove;

The forming blocks and the guide blocks are respectively positioned at two ends of the connecting block, are arranged at the same side of the guide blocks, are used for forming the inverted buckle of the inner groove and can move along the horizontal direction of the side wall of the product cavity to separate from the formed workpiece; the guide block is movably clamped in the second guide groove.

In the core pulling structure of the multiple sliding blocks, a third guide groove is formed in the bottom of the second guide groove along the width direction of the second guide groove, the third guide groove is arranged in parallel with the side wall of the product cavity, and the guide block is movably clamped in the third guide groove.

In the above-mentioned multi-slider core pulling structure, the traction groove includes:

The vertical groove is arranged at the end part of the forming seat, which is far away from the product cavity, along the vertical direction, and the traction column is movably inserted into the vertical groove;

The first abdication groove is arranged on the forming seat and is positioned at one side of the top of the vertical groove, which is close to the product cavity, a first inclined surface is formed on the first abdication groove, a first driving surface is formed on the traction part, and the first driving surface is movably abutted against the first inclined surface, so that the forming seat is close to the product cavity along the horizontal direction;

The second is put down the position groove, and its setting is in on the shaping seat and be located perpendicular tank bottom portion is kept away from one side of product die cavity, be formed with the second inclined plane on the second is put down the position groove, be formed with the second driving surface on the traction portion, the second driving surface activity support in the second inclined plane makes the shaping seat is kept away from along the horizontal direction product die cavity.

In the above-mentioned structure of loosing core of many sliders, including erection column and perpendicular post on the traction column, the erection column is connected the top of perpendicular post, be equipped with the connecting hole on the erection column, the connecting hole with the cover half seat passes through the mounting and is connected, traction portion connects the bottom of perpendicular post and is the contained angle setting with it, perpendicular post activity is inserted and is established in the perpendicular inslot, just the maximum stroke that the drive block removed along the incline direction is less than or equal to the length distance of perpendicular post vertical direction.

In the core pulling structure of the multiple sliding blocks, a pressing plate and a movable block are arranged in the forming seat, the pressing plate and the movable block are positioned at the bottom of the second guide groove, the pressing plate is pressed on the movable block, a locking block outwards extends from the upper end surface of the movable block, a locking groove is formed in the bottom of the traction block, and the locking block is movably clamped in the locking groove;

When the locking block is clamped in the locking groove, the traction block is limited to move in the second guide groove; and the locking block can move relative to the pressing plate and retract into the forming seat due to the extrusion of the bottom wall of the traction block, so that the traction block moves back and forth along the second guide groove.

In the core pulling structure of the multiple sliding blocks, the forming seat is internally provided with the mounting groove, the mounting groove is positioned at the bottom of the second guide groove and is communicated with the second guide groove, the bottom of the mounting groove is provided with the elastic piece, and the top end of the elastic piece is connected with the bottom of the movable block.

Compared with the prior art, the utility model has the following beneficial effects:

(1) According to the multi-slider core pulling structure, the forming seat for forming the straight hole back-off is arranged in the movable die holder, the driving block for forming the angle Kong Daokou and the inclined slider for forming the inner groove back-off are arranged, after a workpiece is formed, in the process of separating the fixed die holder from the movable die holder, the inclined guide pillar is utilized to drive the driving block to separate from the workpiece along the inclined direction, the driving block can simultaneously drive the inclined slider to separate from the inner groove back-off along the horizontal direction of the side wall of the workpiece, when the driving block and the inclined slider are completely separated, the traction part on the traction column is abutted against the forming seat at the moment, and then the forming seat, the driving block and the inclined slider positioned on the forming seat are synchronously separated along the direction of the workpiece, so that the workpiece is ensured to be smoothly subjected to a demoulding action.

(2) The connecting block that the slope set up is provided with the forked tail piece on the slope, and in addition the guide block activity joint on the oblique slider is in the third guide way, and then when making the traction block break away from the work piece with the slope gesture along the second guide way, can rely on the dovetail to drive the forked tail piece and remove along the length direction of third guide way, and then ensure that the oblique slider breaks away from to the inside groove back-off along the horizontal direction of work piece lateral wall after the shaping, avoid the work piece after the shaping to take place the position interference with the shaping piece on the oblique slider and can't carry out smooth drawing of patterns, promoted the stability of this structure of loosing core, ensure that the quality of work piece is not influenced.

(3) The shaping seat is internally provided with the pressing plate and the movable block which are positioned at the bottom of the second guide groove, the pressing plate plays a limiting role on the movable block, and the locking block on the movable block is movably inserted into the locking groove at the bottom of the traction block, so that the traction block is positioned at an accurate position and keeps stability when a workpiece is shaped, the displacement of the traction block is avoided to influence the shaping quality of the workpiece, the movable block can be contracted into the shaping seat by virtue of the elastic piece when the traction block moves, the fluency of the traction block in the moving process is ensured, and the efficiency of the core pulling structure during working is improved.

Drawings

FIG. 1 is a perspective view of a work piece after injection molding in accordance with the present application;

FIG. 2 is a full cross-sectional view of a multiple slider core pulling structure;

FIG. 3 is a view of the mounting structure of the forming shoe and the drive block on the movable die holder;

FIG. 4 is a view of the mounting structure between the drive block and the forming seat;

FIG. 5 is a structural view of the traction block and the diagonal slide member in the forming shoe;

FIG. 6 is a full cross-sectional view of FIG. 4;

FIG. 7 is an exploded view of the traction block and diagonal slider of FIG. 5;

Fig. 8 is a structural view of the traction column.

In the figure, 1, a workpiece; 10. angle Kong Daokou; 11. straight hole back-off; 12. the inner groove is reversely buckled;

2. A fixed die holder; 20. oblique guide posts; 21. a traction column; 210. a mounting column; 211. a mounting hole; 212. a vertical column; 22. a traction section; 220. a first driving surface; 221. a second driving surface;

3. a movable die holder; 30. a product cavity;

4. Forming a seat; 40. a traction groove; 400. a vertical slot; 401. a first relief groove; 402. a first inclined surface; 403. a second relief groove; 404. a second inclined surface; 41. a first guide groove; 42. a second guide groove; 420. a third guide groove; 43. a pressing plate; 44. a movable block; 440. a locking block; 45. a mounting groove; 450. an elastic member;

5. A driving block; 50. a moving block; 500. oblique guide holes; 51. a traction block; 510. a dovetail groove; 511. a locking groove;

6. an inclined slide block; 60. a connecting block; 600. dovetail blocks; 61. molding blocks; 62. and a guide block.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 to 8, the multi-slider core pulling structure of the present utility model is used for forming an angle Kong Daokou, a straight hole back-off 11 and an inner groove back-off 12 on a side wall of a workpiece 1, and includes: the fixed die holder 2 is symmetrically provided with a plurality of inclined guide posts 20 and traction posts 21, the inclined guide posts 20 are close to the middle position of the fixed die holder 2, and the traction posts 21 are positioned at the periphery of the fixed die holder 2; the movable die holder 3 is movably arranged below the fixed die holder 2, and a product cavity 30 is formed between the fixed die holder 2 and the movable die holder 3 after the fixed die holder 2 is attached to the movable die holder 3; the molding seat 4 for molding the straight hole back-off 11 is symmetrically arranged on the movable mold seat 3, a traction groove 40 is formed in the molding seat 4, a traction part 22 is arranged on the traction column 21, and the traction part 22 is movably abutted against the traction groove 40 so as to push the molding seat 4 to be close to or far away from the product cavity 30 along the horizontal direction; the driving block 5 and the inclined sliding block 6 are movably arranged in the forming seat 4 and are movably clamped with each other, the driving block 5 is used for forming an angle Kong Daokou, the inclined sliding block 6 is used for forming an inner groove back-off 12, and the inclined guide pillar 20 is movably inserted into the driving block 5, so that the driving block 5 moves along an inclined direction relative to the forming seat 4, and the inclined sliding block 6 is driven to move along the horizontal direction of the side wall of the workpiece 1 and separate from the inner groove back-off 12; when the fixed die holder 2 drives the inclined guide post 20 and the traction post 21 to be far away from the movable die holder 3, the inclined slide block 6 can be separated from the inner groove back-off 12 due to the movement of the driving block 5 along the inclined direction, and when the traction part 22 abuts against the forming seat 4, the driving block 5 and the inclined slide block 6 are synchronously far away from the formed workpiece 1 along the horizontal direction.

As shown in fig. 1, in this scheme, an angle Kong Daokou, a straight hole back-off 11 and an inner groove back-off 12 appear on a side mechanism of a workpiece 1 to be molded, and in order to accurately mold the workpiece 1, it is also necessary to ensure that the workpiece 1 can be smoothly demolded after molding, specifically, after the workpiece 1 is injection molded, the fixed die holder 2 can drive the inclined guide post 20 and the traction post 21 to be far away from the movable die holder 3, in this process, the inclined guide post 20 will drive the driving block 5 for molding the angle Kong Daokou 10 in advance to move in an inclined direction, and then disengage from the angle Kong Daokou on the molded workpiece 1, and because the driving block 5 is movably clamped with the inclined slide block 6, in the process of demolding the driving block 5, the inclined slide block 6 for molding the inner groove back-off 12 will be driven to move along the horizontal direction of the molded workpiece 1, and then disengage the inclined slide block 6 from the inner groove back-off 12, when the driving block 5 and the inclined sliding block 6 are separated from the angle hole back-off 10 and the inner groove back-off 12 on the formed workpiece 1 respectively, the traction part 22 on the traction block 51 which is far away is propped against the forming seat 4, so that the driving block 5 and the inclined sliding block 6 are driven to be far away from the formed workpiece 1 synchronously in the moving process of the forming seat 4, the ejector rod in the movable die holder 3 is ensured to eject and demould the workpiece 1 smoothly, the whole structure is simple, the back-off in different angles and directions on the workpiece 1 can be formed through one-time injection molding, smooth demoulding of the driving block 5, the inclined sliding block 6 and the forming seat 4 can be ensured through a sequential loose core mode, the operation of workers is facilitated, the smoothness and stability of the loose core structure on the manufacturing of the workpiece 1 are improved, the quality and qualification rate of the workpiece 1 are prevented from being damaged during the demoulding of the workpiece 1, the production efficiency of the whole workpiece 1 is also improved.

The driving block 5 includes: the inclined moving block 50 is movably arranged at one end of the forming seat 4 close to the product cavity 30, an inclined guide hole 500 is formed in the moving block 50, and an inclined guide pillar 20 is movably inserted into the inclined guide hole 500 and used for driving the moving block 50 to move along an inclined direction relative to the forming seat 4; the traction block 51 is connected to the bottom of the moving block 50 and movably clamped with the inclined sliding block 6, the traction block 51 and the moving block 50 are both used for forming the angle Kong Daokou, and when the traction block 51 moves along the inclined direction relative to the forming seat 4, the traction block 51 is used for driving the inclined sliding block 6 to move along the horizontal direction of the side wall of the workpiece 1 and separate from the inner groove back-off 12.

As shown in fig. 2 to 6, after the workpiece 1 is injection molded in the product cavity 30 in fig. 2, the fixed mold seat 2 drives the inclined guide pillar 20 and the traction pillar 21 to move in the process of moving upwards along the vertical direction, the inclined guide pillar 20 can be used to push the moving block 50 with the inclined guide hole 500 to separate from the molded workpiece 1 along the inclined direction of fig. 4, it should be noted that, because the driving block 5 is used to mold the angled hole back-off 10 on the workpiece 1, a certain inclined angle exists in the angle Kong Daokou, the moving block 50 and the traction block 51 are required to stretch into or separate from the product cavity 30 along the inclined direction, so that the side wall structural shape of the workpiece 1 required by molding can be conveniently formed, and similarly, because the traction block 51 is connected with the moving block 50, the traction block 51 can be synchronously separated from the molded workpiece 1 along the inclined direction, and can drive the inclined slide 6 movably clamped with the moving block 50 to move along the horizontal direction of the side wall of the workpiece 1 in the process of the traction block 51, and further, in the process that the moving block 50 and the traction block 51 separate from the angled hole back-off 10 can gradually move along the horizontal direction of the side wall of the workpiece 1, the inclined slide 6 can gradually separate from the side wall 12 along the inclined direction of the side wall 1, and the inclined slide 6 can be prevented from being separated from the side wall 6 along the inclined direction, and the inclined position 12 can be smoothly separated from the side wall 6, and the side wall 6 is smoothly formed along the side of the side wall when the side 6 is formed by the side 6, and the side is ensured, and the side stability is ensured, and the smooth stability is can be simultaneously can be prevented when the formed, and the side stability is can be smoothly and is prevented.

It should be noted that, the inner groove back-off 12 is located on the side wall of the workpiece 1, as shown in fig. 1, the open end of the inner groove back-off 12 is set along the horizontal direction of the side wall of the workpiece 1, as shown in fig. 5, the gap between the inclined slide block 6 and the forming seat 4 is utilized to form the inner groove back-off 12 on the side wall of the workpiece 1 in this scheme, so after the injection molding of the workpiece 1, the inclined slide block 6 needs to move rightward along fig. 5 to separate from the inner groove back-off 12 of the workpiece 1 after the forming, so as to ensure that the ejector rod in the movable die holder 3 ejects the workpiece 1 smoothly from the movable die holder 3, and avoid the influence on the smoothness and stability of the demolding caused by the position interference of the workpiece 1 and the inclined slide block 6.

The forming seat 4 is provided with a first guide groove 41, the bottom wall of the first guide groove 41 is obliquely arranged, and the moving block 50 is movably clamped in the first guide groove 41 and can reciprocate along the oblique direction of the bottom wall of the first guide groove 41.

The inclination of the bottom wall of the first guide groove 41 is consistent with the inclination of the angle hole back-off 10 to be formed on the workpiece 1, as shown in fig. 4, under the driving of the oblique guide post 20, the moving block 50 can be separated from the formed workpiece 1 along the length direction of the first guide groove 41, the first guide groove 41 ensures the stability of the moving block 50 in the reciprocating movement process, meanwhile, the bottom wall obliquely arranged by the first guide groove 41 enables the moving block 50 to accurately form the angle hole back-off 10 on the workpiece 1 in the movement process of the moving block 50 along the inclination direction, and after the workpiece 1 is formed, the moving block 50 is smoothly demoulded, so that the deviation of the moving block 50 in the movement process is avoided to influence the quality of the workpiece 1 forming the angle hole back-off 10.

The forming seat 4 is also provided with a second guide groove 42 communicated with the first guide groove 41, the bottom wall of the second guide groove 42 is parallel to the bottom wall of the first guide groove 41, and the traction block 51 is movably clamped in the second guide groove 42.

Similarly, the traction block 51 is connected with the moving block 50, as shown in fig. 5 and 6, the second guide groove 42 is located below the first guide groove 41, and because the traction block 51 and the moving block 50 are both used for forming the angle hole back-off 10 on the workpiece 1, in this scheme, the bottom wall of the second guide groove 42 and the bottom wall of the first guide groove 41 are arranged in parallel, so that the moving block 50 moves in the first guide groove 41 to drive the traction block 51 to move in the second guide groove 42, the moving block 50 and the traction block 51 can be separated from the workpiece 1 along the same inclined direction at the same time, the stability in the movement process of the core pulling structure is improved, and when the traction block 51 moves along the inclined direction of the bottom wall of the second guide groove 42, the inclined sliding block 6 can be driven to separate from the inner groove back-off 12 along the horizontal direction of the side wall of the workpiece 1, so that the smoothness of movement engagement in the mold demolding process is realized, and the work efficiency of the mold injection molding of the workpiece 1 is facilitated to be improved.

The diagonal slider 6 includes: the connection block 60 is obliquely arranged and movably arranged in the second guide groove 42, a dovetail groove 510 is formed on the side wall of the traction block 51, a dovetail block 600 is outwards extended in the length direction of the connection block 60, and the dovetail block 600 is movably clamped in the dovetail groove 510; the forming blocks 61 and the guide blocks 62 are respectively positioned at the two ends of the connecting block 60, the forming blocks 61 and the guide blocks 62 are arranged at the same side, the forming blocks 61 are used for forming the inner groove back-off 12 and can move along the horizontal direction of the side wall of the product cavity 30 to separate from the formed workpiece 1; the guide block 62 is movably clamped in the second guide groove 42.

Specifically, as shown in fig. 7, the left side wall of the connection block 60 that is obliquely arranged is formed with a dovetail block 600 outwards, the right side wall of the traction block 51 is the same as the inclination angle of the connection block 60, and the dovetail groove 510 on the right side wall of the traction block 51 is movably clamped with the dovetail block 600, so that when the forming block 61 forms the inner groove back-off 12 required on the workpiece 1, the moving block 50 is far away from the product cavity 30 along the length direction of the second guide groove 42, and the moving block 50 is arranged at an included angle with the dovetail groove 510 and the dovetail block 600 movably clamped with the dovetail groove 510, so that the moving block 50 tends to pull the dovetail block 600 to move leftwards along fig. 7 through the dovetail groove 510 in the moving process, and further drive the forming block 61 to separate from the formed inner groove back-off 12 in the direction parallel to the side wall of the workpiece 1, thereby ensuring the fluency in the core pulling operation process, and avoiding the influence on the normal demoulding operation of the workpiece 1 due to the position interference of the forming block 61.

The bottom of the second guide groove 42 is formed with a third guide groove 420 along the width direction thereof, the third guide groove 420 is arranged in parallel with the side wall of the product cavity 30, and the guide block 62 is movably clamped in the third guide groove 420.

In order to further improve stability of the connecting block 60 in the moving process, in the scheme, a third guide groove 420 is arranged at the bottom of the second guide groove 42, different from the second guide groove 42, the length direction of the third guide groove 420 is just perpendicular to the length direction of the second guide groove 42, the length direction of the third guide groove 420 is parallel to the side wall with the inner groove back-off 12, namely, when the traction block 51 is far away from the workpiece 1 along the inclined direction of the second guide groove 42, the traction block 51 is movably clamped in the third guide groove 420 by virtue of the guide block 62, so that the whole inclined sliding block 6 moves along the third guide groove 420, further, the forming block 61 on the connecting block 60 is ensured to be smoothly separated from the inner groove back-off 12, the phenomenon of clamping stagnation caused by displacement deviation of the forming block 61 is avoided, smoothness in demolding is improved, and quality of the inner groove back-off 12 on the workpiece 1 is ensured not to be damaged after forming.

The forming seat 4 is also internally provided with a pressing plate 43 and a movable block 44 which are positioned at the bottom of the second guide groove 42, the pressing plate 43 is tightly pressed on the movable block 44, the upper end surface of the movable block 44 is outwards extended to form a locking block 440, the bottom of the traction block 51 is provided with a locking groove 511, and the locking block 440 is movably clamped in the locking groove 511; when the locking block 440 is locked in the locking groove 511, the pulling block 51 is limited to move in the second guiding groove 42; and the locking block 440 can move relative to the pressing plate 43 and retract into the forming seat 4 due to the pressing of the bottom wall of the traction block 51, so that the traction block 51 reciprocates along the second guide groove 42.

As shown in fig. 6 to 7, the pressing plate 43 and the movable block 44 are located at the bottom of the second guide groove 42, when the traction block 51 and the movable block 50 extend into the product cavity 30 and form the angle hole back-off 10 on the workpiece 1, as shown in fig. 6, the locking block 440 extending outwards of the movable block 44 is clamped in the locking groove 511 at the bottom of the traction block 51, and the stability of the traction block 51 and the movable block 50 when the workpiece 1 is formed is ensured by matching the locking block 440 and the locking groove 511, so that the quality of the workpiece 1 is prevented from being influenced.

The forming seat 4 is internally provided with a mounting groove 45, the mounting groove 45 is positioned at the bottom of the second guide groove 42 and communicated with the second guide groove, the bottom of the mounting groove 45 is provided with an elastic piece 450, and the top end of the elastic piece 450 is connected to the bottom of the movable block 44.

Further, in order to ensure the smoothness of the movement process of the traction block 51 along the inclined direction of fig. 6, the movable block 44 is telescopically arranged in the scheme, namely, the bottom wall of the traction block 51 applies the extrusion force along the inside of the forming seat 4 to the locking block 440 in the movement process, and since the elastic piece 450 is connected between the movable block 44 and the forming seat 4, the movable block 44 can be contracted into the forming seat 4 under the extrusion of the bottom wall of the traction block 51, so that the smoothness of the movement process of the traction block 51 is ensured, and when one of the locking grooves 511 on the bottom of the traction block 51 moves to the upper side of the movable block 44, the movable block 44 can be clamped in the locking groove 511 again by means of the elastic reset of the elastic piece 450, so that the movement of the traction block 51 in the second guide groove 42 is limited, and the stability of the traction block 51 at the required position is ensured.

Preferably, as shown in fig. 6, the upper end surface of the pressing plate 43 is flush with the bottom wall of the second guide groove 42, so as to ensure that the pulling block 51 is not affected by the pressing plate 43 in the moving process, and meanwhile, the right side of the pressing plate 43 is pressed in the movable block 44, so that the upper end surface of the movable block 44 is flush with the bottom wall of the second guide groove 42, the pressing plate 43 limits the distance that the locking block 440 stretches into the second guide groove 42, and further, the locking block 440 is clamped in the locking groove 511 at the same position each time, the stability of the structure is improved, and other elastic pieces 450 such as compression springs, reset springs and the like can be adopted for the elastic pieces 450 in the scheme.

The traction groove 40 includes: a vertical groove 400 provided at an end of the molding seat 4 far from the product cavity 30 in a vertical direction, and a traction column 21 movably inserted into the vertical groove 400; the first abdication groove 401 is arranged on the forming seat 4 and is positioned at one side of the top of the vertical groove 400, which is close to the product cavity 30, a first inclined surface 402 is formed on the first abdication groove 401, a first driving surface 220 is formed on the traction part 22, and the first driving surface 220 is movably abutted against the first inclined surface 402, so that the forming seat 4 is close to the product cavity 30 along the horizontal direction; the second abdication groove 403 is disposed on the forming seat 4 and is located at one side of the bottom of the vertical groove 400 away from the product cavity 30, a second inclined surface 404 is formed on the second abdication groove 403, a second driving surface 221 is formed on the traction portion 22, and the second driving surface 221 is movably abutted against the second inclined surface 404, so that the forming seat 4 is away from the product cavity 30 along the horizontal direction.

As shown in fig. 2 and 6, the first yielding groove 401 is located at the right side of the top of the vertical groove 400, and the second yielding groove 403 is located at the left side of the bottom of the vertical groove 400, because the traction column 21 is vertically inserted into the vertical groove 400, the design of the first yielding groove 401 and the second yielding groove 403 reduces the contact area between the traction column 21 and the side wall of the vertical groove 400, thereby ensuring the smoothness of the traction column 21 in the vertical direction movement process of the vertical groove 400, avoiding the clamping phenomenon of the traction column 21 in the movement process, forming a first inclined surface 402 and a second inclined surface 404 on the first yielding groove 401 and the second yielding groove 403 respectively, driving the traction column 21 to move the traction part 22 in the vertical direction when the fixed die holder 2 is far away from the movable die holder 3 after the die is in the state shown in fig. 2, and the second driving surface 221 on the traction part 22 abuts against the second inclined surface 404 in the second yielding groove 403, and then pushing the forming seat 4 to the left side along fig. 2, further ensuring the smoothness of the sliding block 4 in the vertical direction movement process of the traction column 400, avoiding the clamping phenomenon of the traction column 21 in the movement process, and further ensuring the sliding block 5 on the first inclined surface 402 and the second inclined surface 404 are formed on the movable die holder 2, and further ensuring the quality of the movable die holder 2 to be separated from the movable die holder 2 and the movable die holder 2 when the fixed die holder 2 is far away from the movable die holder 3, and the movable die holder 2 is kept away from the movable die holder 2.

Further, because the traction column 21 and the vertical groove 400 are both disposed along the vertical direction, when the fixed mold seat 2 drives the traction column 21 to move, the traction column 21 does not apply a force to move leftwards in fig. 2 to the forming seat 4, only when the second driving surface 221 on the traction portion 22 abuts against the second inclined surface 404 on the second yielding groove 403, the forming seat 4 moves to the movable mold seat 3 first, and the driving block 5 and the inclined slide 6 in the forming seat 4 perform demolding operation during the movement of the traction column 21 in the vertical groove 400, so that after the driving block 5 and the inclined slide 6 complete demolding operation, the driving block 22 can push the forming seat 4 to move, and further the middle forming seat 4 and the driving block 5 and the inclined slide 6 located on the forming seat 4 are synchronously away from the workpiece 1 after forming, so as to ensure smoothness and stability in the demolding process of the subsequent workpiece 1.

The traction column 21 comprises a mounting column 210 and a vertical column 212, the mounting column 210 is connected to the top end of the vertical column 212, a connecting hole is formed in the mounting column 210, the connecting hole is connected with the fixed die holder 2 through a fixing piece, the traction portion 22 is connected to the bottom of the vertical column 212 and is arranged at an included angle with the bottom of the vertical column 212, the vertical column 212 is movably inserted into the vertical groove 400, and the maximum travel of the driving block 5 along the inclined direction is smaller than or equal to the length distance of the vertical column 212 in the vertical direction.

As shown in fig. 2 and 8, the traction column 21 is composed of two parts of a mounting column 210 and a vertical column 212, wherein the mounting part is connected with the fixed die holder 2 through a fixing part by using a connecting hole, the fixing part can adopt other fixing devices such as a screw, so as to ensure the stability between the traction column 21 and the fixed die holder 2, the purpose of setting the included angle between the traction part 22 and the vertical column 212 is to respectively drive the forming holder 4 to move along different directions by using a first driving surface 220 and a second driving surface 221 on the traction part 22, so as to ensure the fluency of the process of injection molding the workpiece 1 of the die, and is favorable for improving the overall working efficiency.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. 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 solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

Claims

1. The utility model provides a many sliders's structure of loosing core for angle Kong Daokou, straight hole back-off and inside groove back-off on the shaping work piece lateral wall, characterized in that includes:

the fixed die holder is symmetrically provided with a plurality of inclined guide posts and traction posts, the inclined guide posts are close to the middle of the fixed die holder, and the traction posts are positioned at the periphery of the fixed die holder;

2. The multiple-slider core pulling structure according to claim 1, wherein the driving block comprises:

3. The multi-slider core pulling structure according to claim 2, wherein the forming seat is formed with a first guide groove, the bottom wall of the first guide groove is obliquely arranged, and the moving block is movably clamped in the first guide groove and can reciprocate along the oblique direction of the bottom wall of the first guide groove.

4. The multi-slider core pulling structure according to claim 3, wherein the forming seat is further provided with a second guide groove communicated with the first guide groove, the bottom wall of the second guide groove is parallel to the bottom wall of the first guide groove, and the traction block is movably clamped in the second guide groove.

5. The multiple-slider core pulling structure according to claim 4, wherein the oblique slider comprises:

6. The multi-slider core pulling structure according to claim 5, wherein a third guide groove is formed at the bottom of the second guide groove along the width direction of the second guide groove, the third guide groove is arranged in parallel with the side wall of the product cavity, and the guide block is movably clamped in the third guide groove.

7. The multiple-slider core pulling structure according to claim 1, wherein the pulling groove comprises:

8. The multi-slider core pulling structure according to claim 7, wherein the traction column comprises a mounting column and a vertical column, the mounting column is connected to the top end of the vertical column, a connecting hole is formed in the mounting column, the connecting hole is connected with the fixed die base through a fixing piece, the traction portion is connected to the bottom of the vertical column and is arranged at an included angle with the bottom of the vertical column, the vertical column is movably inserted into the vertical groove, and the maximum travel of the driving block moving in the inclined direction is smaller than or equal to the length distance of the vertical direction of the vertical column.

9. The multi-slider core pulling structure according to claim 4, wherein the forming seat is further internally provided with a pressing plate and a movable block which are positioned at the bottom of the second guide groove, the pressing plate is pressed on the movable block, the upper end surface of the movable block extends outwards to form a locking block, the bottom of the traction block is provided with a locking groove, and the locking block is movably clamped in the locking groove;

10. The multi-slider core pulling structure according to claim 9, wherein a mounting groove is formed in the forming seat, the mounting groove is located at the bottom of the second guiding groove and is communicated with the second guiding groove, an elastic piece is arranged at the bottom of the mounting groove, and the top end of the elastic piece is connected to the bottom of the movable block.