CN220331833U

CN220331833U - Injection mold

Info

Publication number: CN220331833U
Application number: CN202321821737.0U
Authority: CN
Inventors: 於贤永
Original assignee: Ningbo Renyong Auto Parts Co ltd
Current assignee: Ningbo Renyong Auto Parts Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-01-12
Anticipated expiration: 2033-07-12

Abstract

The utility model belongs to the technical field of molds, and provides an injection mold, which comprises: the fixed die assembly is provided with an inclined guide post; the movable die assembly is movably arranged below the fixed die assembly, and after the fixed die assembly is attached to the movable die assembly, a product cavity is formed between the fixed die assembly and the movable die assembly; the device comprises a first molding block, a second molding block and a third molding block, wherein the first molding block is positioned between the second molding block and the third molding block, and the inclined guide pillar is movably inserted into the first molding block, the second molding block and the third molding block. Compared with the prior art, the utility model has the advantages that the first forming block, the second forming block and the third forming block which are used for extending into the product cavity to form a required workpiece are arranged, the fixed die assembly is far away from the movable die assembly after the workpiece is formed, the first forming block, the second forming block and the third forming block are sequentially far away from the workpiece through the inclined guide pillar, so that the demolding is convenient, the workpiece is prevented from being damaged, and the production efficiency is improved.

Description

Injection mold

Technical Field

The utility model belongs to the technical field of molds, and particularly relates to an injection mold.

Background

With the rapid development of technology, products are gradually diversified, and different dies are required for forming processes aiming at different product processing.

In the usual auto spare and accessory parts, some products have a plurality of flabellum that is annular distribution, and these flabellums are the pitch arc setting from the periphery of product to the center department of product, and because the flabellum itself exists the bending, when the shaping piece on the movable mould subassembly and the required product of product die cavity shaping, treat the product shaping back, owing to there is great cohesion between shaping piece and the product for be difficult for breaking away from in the product, and then lead to the damage of product easily, and influence the production efficiency of mould.

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 first molding block, the second molding block and the third molding block are arranged on the movable die assembly, the three molding blocks are utilized to extend into a product cavity to form a required workpiece, the fixed die assembly is far away from the movable die assembly after the workpiece is molded, the first forming block, the second forming block and the third forming block are sequentially far away from the workpiece through the inclined guide pillar, so that the workpiece is prevented from being damaged when the demolding is convenient, and the production efficiency of the injection mold is improved.

The technical scheme adopted for solving the technical problems is that the utility model provides an injection mold, which comprises: the fixed die assembly is provided with an inclined guide post;

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

the first forming block, the second forming block and the third forming block are positioned between the second forming block and the third forming block, the inclined guide pillar is movably inserted into the first forming block, the second forming block and the third forming block, and the first forming block, the second forming block and the third forming block are all used for extending into the product cavity to form a required workpiece;

after the workpiece is subjected to injection molding, the fixed die assembly is far away from the movable die assembly, and the first forming block, the second forming block and the third forming block are sequentially separated from the workpiece through the inclined guide pillar.

In the above injection mold, the second molding block includes:

the compression block is positioned on the first molding block, and a first connecting hole is formed in the compression block along the vertical direction;

the first molding part is propped against the side wall of the first molding block and is flush with the upper end face of the first molding block, a first connecting column is arranged on the first molding part, the first connecting column is inserted into the first connecting hole, and the first molding part is used for extending into the product cavity.

In the above injection mold, the third molding block includes:

the limiting block is positioned at the bottom of the first forming block, and a second connecting hole is formed in the limiting block along the vertical direction;

the second molding part is positioned at the bottom of the first molding part and abuts against the side wall of the first molding block, a second connecting column is arranged on the second molding part, the second connecting column is inserted into the second connecting hole, and the first molding part, the second molding part and the first molding block are used for simultaneously extending into the product cavity to form a required workpiece.

In the injection mold, the first molding block is provided with the through hole in an inclined manner, the pressing block is provided with the first waist-shaped hole, the limiting block is provided with the second waist-shaped hole, both end faces of the first waist-shaped hole and the second waist-shaped hole in the length direction are obliquely arranged, and when the first molding part, the second molding part and the first molding block extend into the product cavity, one sides of the first waist-shaped hole, the second waist-shaped hole and the through hole, which are close to the center position of the movable mold assembly, are positioned on the same inclined line.

In the injection mold, the movable mold assembly is further provided with a fixed block, the fixed block is provided with a plurality of clamping grooves, the first molding block, the compression block and the limiting block are respectively provided with a clamping block, and the clamping blocks are movably clamped in the clamping grooves.

In the above injection mold, the distance in the length direction of the second waist-shaped hole is greater than the distance in the length direction of the first waist-shaped hole.

In the injection mold, the limiting block is provided with the limiting groove, the movable mold assembly is provided with the limiting column, and the limiting groove is movably propped against the limiting column.

In the injection mold, a positioning block is arranged at the end part of the fixed block, which is close to the center of the movable mold assembly, along the vertical direction, and the clamping block is movably abutted against the positioning block.

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

(1) According to the injection mold, the first molding block, the second molding block and the third molding block are arranged on the movable mold assembly, and the inclined guide columns are arranged on the fixed mold assembly, so that when the fixed mold assembly and the movable mold assembly are assembled, the inclined guide columns are used for pushing the three molding blocks to extend into a product cavity on the movable mold assembly, and in the mold opening process after the workpiece is molded, the inclined guide columns on the fixed mold assembly can be used for sequentially pushing the first molding block, the second molding block and the third molding block to be away from the molded workpiece, and the part of a product is molded by the three molding blocks and the mode of sequentially separating from the three molding blocks is adopted, so that the problem that the molded blocks and the workpiece are not easy to separate due to large holding force after the product is molded is solved, the phenomenon that the workpiece is damaged during demolding is avoided, and the production efficiency of the mold is improved.

(2) Utilize the through-hole that first waist type hole on the compact heap, the second waist type hole on the stopper and the slope set up on the first shaping piece for oblique guide pillar is kept away from the in-process of movable mould subassembly at the cover half subassembly, and oblique guide pillar is through supporting the lateral wall of leaning on the through-hole in proper order, the lateral wall in first waist type hole and the lateral wall in second waist type hole, makes first shaping piece, the work piece after the shaping is kept away from in proper order along first shaping portion that is connected with the compact heap and the second shaping portion that is connected with the stopper, is favorable to carrying out the drawing of patterns on the work piece driven mould subassembly, guarantees the integrality of work piece.

(3) The clamping blocks on the first forming block, the compression block and the limiting block are movably clamped in the clamping grooves on the fixed block, so that the inclined guide pillar on the fixed die assembly is beneficial to pushing the first forming block, the compression block and the limiting block to play a certain guiding role in the moving process, the first forming block, the first forming part and the second forming part are ensured to accurately move to the required positions, and the stability of the die during working is improved.

Drawings

FIG. 1 is an exploded view between a stationary mold assembly and a movable mold assembly;

FIG. 2 is a view of the mounting structure of the first, second and third molding blocks;

FIG. 3 is a view of the mounting structure between the first molding part and the compression block, the second molding part and the stopper;

FIG. 4 is a full cross-sectional view of FIG. 2;

fig. 5 is a view of the mounting structure of the fixed block and the positioning block on the movable die assembly.

In the figure, 1, a fixed die assembly; 2. oblique guide posts; 3. a movable mold assembly; 4. a product cavity; 5. a first molding block; 6. a second molding block; 7. a third molding block; 8. a compaction block; 9. a first connection hole; 10. a first molding part; 11. a first connection post; 12. a limiting block; 13. a second connection hole; 14. a second molding part; 15. a second connection post; 16. a through hole; 17. a first waist-shaped hole; 18. a second waist-shaped hole; 19. a fixed block; 20. a clamping groove; 21. a clamping block; 22. a limit groove; 23. a limit column; 24. and (5) positioning blocks.

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 5, an injection mold of the present utility model includes: a fixed die assembly 1 provided with an inclined guide post 2; a movable die assembly 3 movably arranged below the fixed die assembly 1, and forming a product cavity 4 between the fixed die assembly 1 and the movable die assembly 3 after the fixed die assembly 1 is attached to the movable die assembly 3; the first molding block 5, the second molding block 6 and the third molding block 7, wherein the first molding block 5 is positioned between the second molding block 6 and the third molding block 7, the inclined guide pillar 2 is movably inserted into the first molding block 5, the second molding block 6 and the third molding block 7, and the first molding block 5, the second molding block 6 and the third molding block 7 are all used for extending into the product cavity 4 to form a required workpiece; after the workpiece is injection molded, the fixed die assembly 1 is far away from the movable die assembly 3, and the first molding block 5, the second molding block 6 and the third molding block 7 are sequentially separated from the workpiece through the inclined guide pillar 2.

According to the scheme, the problem that a workpiece is complex and difficult to demould is mainly solved, specifically, the forming block of the workpiece to be formed is divided into the first forming block 5, the second forming block 6 and the third forming block 7, the inclined guide pillar 2 is arranged on the fixed die assembly 1, when the die assembly is required to be closed, the fixed die assembly 1 can be moved and attached along the movable die assembly 3, the inclined guide pillar 2 can push the first forming block 5, the second forming block 6 and the third forming block 7 to stretch into a formed product cavity 4, after the injection of the workpiece is completed, due to certain holding force between the workpiece and the three forming blocks, the workpiece is extremely easy to damage in the demoulding process, and the first forming block 5, the second forming block 6 and the third forming block 7 are sequentially separated from the workpiece by the inclined guide pillar 2 in the die assembly 3, namely, the three forming blocks are distributed and separated by one-time movement of the inclined guide pillar 2, so that the workpiece is prevented from being damaged when a plurality of forming blocks are simultaneously carried out, and the production efficiency of the die is improved.

It should be noted that, in this embodiment, only a group of molding blocks (the first molding block 5, the second molding block 6 and the third molding block 7) is discussed, and the manner of practical design is as shown in fig. 1 and 5, and the inclined guide posts 2 are disposed corresponding to each group of molding blocks by setting a plurality of inclined guide posts 2, and each group of molding blocks is distributed on the fixed mold assembly 1 and the movable mold assembly 3 in a ring shape.

As shown in fig. 2 to 3, the second molding block 6 includes: the compression block 8 is positioned on the first molding block 5, and the compression block 8 is provided with a first connecting hole 9 along the vertical direction; the first molding part 10, the first molding part 10 is abutted against the side wall of the first molding block 5 and is parallel to the upper end face of the first molding block, the first molding part 10 is provided with a first connecting column 11, the first connecting column 11 is inserted into the first connecting hole 9, and the first molding part 10 is used for extending into the product cavity 4.

Further, in order to ensure the forming of the workpiece and the convenient detachment of the second forming block 6 after the forming, the second forming block 6 is composed of a compression block 8 and a first forming part 10, wherein the first forming part 10 is abutted against the side wall of the first forming block 5, the design that the upper end faces of the first forming part 10 and the first forming block 5 are flush is beneficial to the fitting of the parts of the two formed workpiece at the right end part of the figure 2, so that the quality of the formed workpiece is ensured, and meanwhile, in order to prevent the fixed die assembly 1 and the movable die assembly 3 from being matched with each other to displace the first forming part 10 in the workpiece injection molding process, the compression block 8 is arranged on the upper end faces of the first forming block 5 and the first forming part 10, so that the first forming block 5 and the first forming part 10 are limited to move along the vertical direction, and the stability of the die in the working process is improved.

The third molding block 7 includes: the limiting block 12 is positioned at the bottom of the first forming block 5, and the limiting block 12 is provided with a second connecting hole 13 along the vertical direction; the second molding part 14 is located at the bottom of the first molding part 10 and abuts against the side wall of the first molding block 5, the second molding part 14 is provided with a second connecting column 15, the second connecting column 15 is inserted into the second connecting hole 13, and the first molding part 10, the second molding part 14 and the first molding block 5 are used for simultaneously extending into the product cavity 4 to form a required workpiece.

Similarly, the second molding part 14 abuts against the bottom of the first molding part 10, and finally the first molding part 10, the second molding part 14 and the first molding block 5 together form a required workpiece shape with the product cavity 4, and the limiting block 12 plays a limiting role, namely, when the limiting block 12 is in a limiting position in the process of clamping the fixed die assembly 1 and the movable die assembly 3, three molding blocks extend into the product cavity 4 at the moment, so that the deviation of the positions of the three molding blocks relative to the movable die assembly 3 during the clamping of each time is avoided, and the quality of the workpiece after injection molding is ensured.

The through hole 16 is obliquely arranged on the first molding block 5, the first waist-shaped hole 17 is arranged on the compression block 8, the second waist-shaped hole 18 is arranged on the limiting block 12, both end surfaces of the first waist-shaped hole 17 and the second waist-shaped hole 18 in the length direction are obliquely arranged, and when the first molding part 10, the second molding part 14 and the first molding block 5 extend into the product cavity 4, one sides of the first waist-shaped hole 17, the second waist-shaped hole 18 and the through hole 16, which are close to the center position of the movable die assembly 3, are positioned on the same inclined line.

When the fixed die assembly 1 and the movable die assembly 3 are assembled, the inclined guide posts 2 on the fixed die assembly 1 are simultaneously inserted into and abutted against the right wall of the first waist-shaped hole 17, the through hole 16 and the second waist-shaped hole 18 shown in fig. 4, after the workpiece is injection molded, the fixed die assembly 1 can drive the inclined guide posts 2 to be far away from the movable die assembly 3, and the inclined guide posts 2 are driven to move in the process that the fixed die assembly 1 is far away from, so that the inclined guide posts 2 can push the first forming block 5 to move rightwards in the direction of fig. 4, when the inclined guide posts 2 are abutted against the right wall of the first waist-shaped hole 17 on the pressing block 8 in the moving process, the pressing block 8 can be pushed to move rightwards by the inclined guide posts 2 along the direction of fig. 4, and the first connecting post 11 on the first forming part 10 is inserted into the first connecting hole 9 of the pressing block 8, and the second connecting post 15 on the second forming part 14 is inserted into the second connecting hole 13 of the limiting block 12, and the pressing block 8 can be driven to move rightwards in the moving process along the direction of fig. 4, and the second forming part 12 is also pushed rightwards by the second connecting post 10 and the second connecting post 12 is not pushed to be separated from the second forming part 12 in the right direction of the second forming part 12, and the second forming part is simultaneously, and the second forming part is prevented from being damaged by the second forming part 12 is pushed rightwards by the second connecting part 12 and the second connecting part 12 to be pushed rightwards along the second connecting part 12, and the second connecting part 12 is simultaneously shown in fig. 4, and the workpiece is shown in fig. 3, and the right side is damaged by the right side and the workpiece is formed.

It should be noted that, the oblique guide post 2 sequentially abuts against the inner wall of the through hole 16 in the moving process, the right walls of the first waist-shaped hole 17 and the second waist-shaped hole 18 shown in fig. 4 realize die sinking, and simultaneously make the three forming blocks separate from the workpiece in sequence, and in the process, the first connecting post 11 and the second connecting post 15 have no connection relationship, that is, the first forming part 10 and the second forming part 14 do not interfere with each other, so that each forming block is ensured to separate from the workpiece in steps after the workpiece is formed, the smoothness during die sinking is improved, and the workpiece is prevented from being damaged in the die sinking process.

Similarly, when the fixed mold assembly 1 and the movable mold assembly 3 are assembled, the inclined guide posts 2 on the fixed mold assembly 1 sequentially abut against the left walls of the through holes 16, the first waist-shaped holes 17 and the second waist-shaped holes 18 as shown in fig. 4, so that the left walls of the through holes 16, the first waist-shaped holes 17 and the second waist-shaped holes 18 are finally formed on the same inclined line as shown in fig. 4, and in the process of continuously moving the inclined guide posts 2, the first molding block 5, the first molding part 10 and the second molding part 14 are finally inserted into the product cavity 4 to form a required workpiece shape, so that the synchronous movement of the first molding block 5, the first molding part 10 and the second molding part 14 during the assembly ensures that the workpiece shape to be molded is not affected, the quality of the workpiece is improved, and the integrity of the workpiece can be ensured by utilizing a sequential demolding mode during the opening of the mold.

Preferably, the distance in the length direction of the second waist-shaped hole 18 is greater than the distance in the length direction of the first waist-shaped hole 17, so that the inclined guide post 2 can sequentially push the inner wall of the first waist-shaped hole 17 on the compression block 8 and the inner wall of the second waist-shaped hole 18 on the limiting block 12 in the moving process, the first forming block 5 is firstly separated from a workpiece, the first forming part 10 is separated from the workpiece, and the second forming part 14 is separated from the workpiece, the demolding convenience is improved, the quality of the workpiece is not influenced, and meanwhile, the production efficiency of the die is improved.

The movable die assembly 3 is also provided with a fixed block 19, a plurality of clamping grooves 20 are formed in the fixed block 19, and clamping blocks 21 are respectively arranged on the first forming block 5, the compressing block 8 and the limiting block 12, and the clamping blocks 21 are movably clamped in the clamping grooves 20. A step of

Further, the clamping block 21 is movably clamped in the clamping groove 20 on the fixed block 19, so that the compression block 8, the first forming block 5 and the limiting block 12 can be guaranteed to reciprocate along the direction of the clamping groove 20 all the time in the moving process, and the phenomenon that the quality of a formed workpiece is influenced due to position deviation is avoided.

The limiting block 12 is provided with a limiting groove 22, the movable die assembly 3 is provided with a limiting column 23, and the limiting groove 22 is movably abutted against the limiting column 23.

In order to ensure that each component of the fixed die component 1 and the movable die component 3 can accurately move to the same position in the die assembly process, when the limit groove 22 on the limit block 12 and the limit post 23 on the movable die component 3 are utilized, and the limit groove 22 abuts against the limit post 23 when the limit block 12 is pushed to approach the center position of the movable die component 3 by the inclined guide post 2 on the fixed die component 1, the limit post 23 is utilized to limit the movement of the limit block 12, and as the inclined guide post 2 finally abuts against the left wall of the first waist-shaped hole 17, the through hole 16 and the second waist-shaped hole 18 in the die assembly process, as shown in fig. 4, when the limit post 23 limits the movement of the limit block 12, namely, the limit block 12 also limits the movement of the inclined guide post 2, so that the first forming block 5, the first forming part 10 and the second forming part 14 stop moving, and the design of the limit groove 22 and the limit post 23 is beneficial to ensuring that the forming block is positioned at the same position in each die assembly process, and the stability of the workpiece quality is improved.

As shown in fig. 5, a positioning block 24 is arranged at the end of the fixed block 19 near the center of the movable module 3 along the vertical direction, and the clamping block 21 is movably abutted against the positioning block 24.

Further, besides the positioning achieved by the limit posts 23 and the limit grooves 22, the positioning block 24 can be arranged on the fixed block 19, and the clamping block 21 is abutted against the positioning block 24 to limit the continuous movement along the central position of the movable die assembly 3 in the moving process of the first forming block 5, the compression block 8 and the limiting block 12, so that the first forming block 5, the first forming part 10 and the second forming part 14 are ensured to move to the required positions, and the quality is prevented from being influenced when the workpiece is formed.

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. An injection mold, comprising:

the fixed die assembly is provided with an inclined guide post;

2. An injection mold as claimed in claim 1, wherein said second molding block comprises:

3. An injection mold as claimed in claim 2, wherein said third molding block comprises:

4. An injection mold according to claim 3, wherein the first molding block is provided with a through hole in an inclined manner, the pressing block is provided with a first waist-shaped hole, the stopper is provided with a second waist-shaped hole, both end surfaces of the first waist-shaped hole and both end surfaces of the second waist-shaped hole in the length direction are inclined, and when the first molding part, the second molding part and the first molding block extend into the product cavity, one side of the first waist-shaped hole, the second waist-shaped hole and the through hole, which is close to the center position of the movable mold assembly, are positioned on the same inclined line.

5. An injection mold according to claim 3, wherein the movable mold assembly is further provided with a fixed block, the fixed block is provided with a plurality of clamping grooves, the first molding block, the compression block and the limiting block are provided with clamping blocks, and the clamping blocks are movably clamped in the clamping grooves.

6. The injection mold of claim 4 wherein the second kidney-hole is longer than the first kidney-hole.

7. An injection mold according to claim 3, wherein the stopper is provided with a stopper groove, the movable mold assembly is provided with a stopper post, and the stopper groove is movably abutted against the stopper post.

8. The injection mold of claim 5, wherein a positioning block is arranged at the end of the fixed block, which is close to the center of the movable mold assembly, in the vertical direction, and the clamping block is movably abutted against the positioning block.