CN217098751U

CN217098751U - Injection mold convenient to drawing of patterns

Info

Publication number: CN217098751U
Application number: CN202220760436.0U
Authority: CN
Inventors: 廖龙军
Original assignee: Tianjin Yuangu Technology Co ltd
Current assignee: Tianjin Yuangu Technology Co ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-08-02
Anticipated expiration: 2032-04-01

Abstract

The utility model belongs to the technical field of injection mold and specifically relates to an injection mold convenient to drawing of patterns is related to, including cope match-plate pattern and lower bolster, leave the cavity of usefulness of moulding plastics between cope match-plate pattern and the lower bolster, the side that the lower bolster is close to the cope match-plate pattern is inside to be inlayed and is equipped with two injection molding pieces, two injection molding pieces set up the both sides at the cavity relatively, be provided with on the lower bolster and drive two injection molding pieces towards the drive assembly that the direction that is close to each other or keeps away from removed, it has the convenient advantage of drawing of patterns of spare part of conveniently moulding plastics.

Description

Injection mold convenient to drawing of patterns

Technical Field

The application relates to the field of injection molds, in particular to an injection mold convenient to demould.

Background

At present, injection molding is a production and processing mode commonly used by processing manufacturers, the processing efficiency is high, and mass production can be realized.

Referring to fig. 1, the existing automobile part comprises a clamping block 12, two transmission plates 11 and a connecting block 1, wherein the connecting block 1 is generally cylindrical, a circular fixing plate is arranged on one end face of the connecting block 1, the two transmission plates 11 are arranged together, the two transmission plates 11 are arranged oppositely, one end of each transmission plate 11 is fixedly connected with one end of the fixing plate far away from the connecting block 1, and the other end of each transmission plate is fixedly connected with the clamping block 12.

The related documents record that the mold for processing the automobile parts comprises an upper mold box and a lower mold box, wherein the upper mold box is provided with an injection molding hole, and an injection molding cavity for molding a workpiece is formed in front of the upper mold box and the lower mold box. And during pouring, the mold is arranged on an injection molding machine, the injection molding machine adds molten plastic into the injection molding cavity at the position of the injection molding hole, after the molten plastic is molded, the upper mold box and the lower mold box are separated, and then the product is taken out of the injection molding cavity.

In view of the above technical solutions, the inventors found that: when the product is taken out of the injection molding cavity, the product may be adhered to the side wall of the injection molding cavity due to the viscosity of the molten plastic itself, which may cause difficulty in demolding the product.

SUMMERY OF THE UTILITY MODEL

The application provides an injection mold convenient to drawing of patterns for the convenience product drawing of patterns.

The technical purpose of the application is realized by the following technical scheme:

the utility model provides an injection mold convenient to drawing of patterns, includes cope match-plate pattern and lower bolster, leaves the cavity of usefulness of moulding plastics between cope match-plate pattern and the lower bolster, and the lower bolster is close to the inside two injection molding pieces that are equipped with in side of cope match-plate pattern, and two injection molding pieces set up the both sides at the cavity relatively, are provided with the drive assembly who drives two injection molding pieces and move towards the direction that is close to each other or keeps away from on the lower bolster.

By adopting the scheme, when the injection mold is used for processing the automobile parts, the parts can be formed between the two injection molding blocks; when the mold is disassembled, the driving assembly drives the two injection molding blocks to move towards the direction away from each other, at the moment, the two injection molding blocks can be separated from the injection molding parts, so that the injection molding parts can be conveniently taken out of the mold by people, and the effect of facilitating demolding of the product is achieved.

Preferably, drive assembly includes the traction block, and the traction block is fixed in the one end that two injection molding pieces kept away from each other, and one side that the injection molding piece was kept away from to the traction block is provided with the sliding block that can remove along with the cope match-plate pattern, is provided with the linkage piece before traction block and the sliding block, and the linkage piece inclines to the direction that is close to the injection molding piece along the direction of keeping away from to being close to the cope match-plate pattern, offers the pull groove with linkage piece looks adaptation on the traction block.

Preferably, at least two sets of injection molding blocks which are arranged oppositely are arranged between the upper template and the lower template.

Preferably, be provided with the synchronizing block between two sets of adjacent injection molding pieces, two sliding block fixed connection on synchronizing block and two adjacent injection molding pieces.

Preferably, one side of the lower template, which is far away from the upper template, is provided with an ejector plate, and the ejector plate is provided with an ejector rod which extends into the cavity and can move back and forth.

Preferably, the ejector pins are provided in total in two, the distance between the two ejector pins and the two driving plates being equal and capable of abutting against the two driving plates of the formed workpiece.

Preferably, the position that the thimble rod is close to the cavity is provided with two contact levers, and two contact levers homoenergetic butt are on the joint piece.

Preferably, the sliding block is detachably mounted on the upper template through a fixing bolt.

In summary, the present application has the following technical effects:

1. by arranging the injection molding blocks and the driving assembly for driving the injection molding blocks to move, the automobile part is molded between the two injection molding blocks, and the driving assembly drives the two injection molding blocks to move towards the direction away from each other during demolding, so that the effect of facilitating demolding of the part is achieved;

2. through having set up the thimble bar, when the spare part drawing of patterns of accomplishing of moulding plastics, the thimble bar can drive spare part and move towards the direction of keeping away from the lower bolster, can further make things convenient for the drawing of patterns like this.

Drawings

FIG. 1 is a view showing a structure of an automobile component described in the background of the present application;

FIG. 2 is an overall structural view of the injection mold of the present application;

FIG. 3 is a partial exploded view of the injection mold face plate, open mold plate, and upper mold plate of the present application after bursting;

FIG. 4 is a front view of a top mold plate of an injection mold of the present application;

FIG. 5 is a cross-sectional view A-A of FIG. 4;

fig. 6 is a partial view highlighting the construction of the lift pins.

In the figure, 1, a connecting block; 11. a drive plate; 12. a clamping block; 2. injection molding a mold; 21. a panel; 22. opening a template; 23. mounting a template; 24. a lower template; 25. an ejector plate; 26. mounting a plate; 3. an injection molding structure; 31. an injection molding block; 32. a cavity; 4. a drive assembly; 41. a traction block; 42. a slider; 43. a linkage block; 44. a synchronization block; 45. a traction groove; 5. a thimble structure; 51. a thimble seat; 52. a thimble rod.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 2, the application provides an injection mold convenient to drawing of patterns, including adhering to tight panel 21 each other in proper order, die sinking board 22, cope match-plate pattern 23, lower bolster 24, thimble board 25 and mounting panel 26, panel 21 and mounting panel 26 are used for installing injection mold 2 on the injection molding machine, be provided with multiunit injection structure 3 between cope match-plate pattern 23 and the lower bolster 24, set up the injection molding hole with 3 intercommunications of injection structure on the cope match-plate pattern 23, in this embodiment, injection structure 3 is provided with four groups altogether, promptly: when the injection mold 2 is used, four automobile parts can be produced in each injection molding process; the die plate 22 is provided with a pouring hole communicated with the injection molding hole, after the injection molding is finished, the injection molding machine drives the panel 21 and the die plate 22 to move towards the direction far away from the upper die plate 23, and the panel 21 can break the nozzle material in the injection molding process; the ejector plate 25 can eject the molded parts from the lower template 24, so as to realize the demolding of the parts.

Referring to fig. 3 and 4, the injection structure 3 includes two injection molding blocks 31, the two injection molding blocks 31 are disposed on one side of the lower mold plate 24 close to the upper mold plate 23, one side of the injection molding block 31 far from the upper mold plate 23 is embedded into the lower mold plate 24, a pair of abdicating grooves for the injection molding blocks 31 to move toward or away from each other are disposed on a side surface of the lower mold plate 24 close to the upper mold plate 23, a cavity 32 for injection molding is disposed in an area among the two injection molding blocks 31, the upper mold plate 23 and the lower mold plate 24, and a driving assembly 4 for driving the two injection molding blocks 31 to move is disposed on the lower mold plate 24. When the injection mold 2 is used for injection molding of parts, the driving assembly 4 limits the two injection blocks 31, so that the two injection blocks 31, the upper template 23 and the lower template 24 maintain a cavity 32 for molding the parts; after the injection molding of the parts is completed, the driving assembly 4 drives the two injection molding blocks 31 to move towards the direction away from each other, so that the injection molding blocks 31 are separated from the parts, and the demolding can be conveniently carried out.

Referring to fig. 4 and 5, the driving assembly 4 includes two traction blocks 41, two sliding blocks 42, a linkage block 43 and a synchronization block 44, the two traction blocks 41 are disposed at the ends of the two injection-molded blocks 31 far away from each other and are fixedly connected with the injection-molded blocks 31, a sliding groove for moving the traction blocks 41 is formed on the side surface of the lower template 24 close to the upper template 23, the sliding block 42 is disposed on the side of the traction blocks 41 far away from the injection-molded blocks 31, and the sliding block 42 is detachably mounted on the upper template 23 through bolts; the linkage block 43 is arranged between the traction block 41 and the sliding block 42, the linkage block 43 inclines towards the direction close to the traction block 41 along the direction from the distance to the direction close to the upper template 23, and the traction block 41 is provided with a traction groove 45 matched with the linkage block 43; the number of the synchronizing blocks 44 is three, and the three synchronizing blocks 44 are arranged between the two adjacent sets of injection structures 3 and fixedly connected with the two adjacent sliding blocks 42 in the two adjacent sets of injection structures 3.

When the upper template 23 and the lower template 24 are separated, the upper template 23 drives the sliding block 42 to move together in the direction away from the lower template 24, and in the moving process of the sliding block 42, the sliding block 42 drives the traction block 41 and the injection molding block 31 to move in the direction away from the cavity 32 through the linkage block 43, so that the separation of the injection molding block 31 and the automobile parts can be realized; through setting sliding block 42 and cope match-plate pattern 23 to detachably be connected, along with linkage piece 43 time of using becomes, linkage piece 43 can appear wearing and tearing gradually, and sliding block 42 can be dismantled with cope match-plate pattern 23 and be connected and can conveniently dismantle and change sliding block 42.

Referring to fig. 6, in order to further facilitate demolding, four sets of thimble structures 5 are disposed inside the thimble plate 25, the four sets of thimble structures 5 correspond to the four sets of injection molding structures 3 one by one, and after the injection molded part is molded, the thimble structures 5 can eject the molded part from the lower mold plate 24.

The thimble structure 5 comprises thimble seats 51 and thimble rods 52, the thimble seats 51 are arranged in the thimble plate 25, moving grooves for the thimble seats 51 to move towards the direction close to or far away from the lower template 24 are formed in the thimble plate 25, four thimble rods 52 are arranged, the four thimble rods 52 are vertically fixed on the side surfaces of the thimble seats 51 close to the lower template 24, one end of the thimble rod 52 far away from the thimble seats 51 penetrates through the lower template 28 and extends into the cavity 32, and the thimble rods 52 are connected with the lower template 28 in a sliding manner; two of the two plunger rods 52 are aligned with the two actuator plates 11 of the molded part, two of the contact rods 53 can abut against the actuator plates 11, and the other two plunger rods 52 are aligned with the engagement blocks 12 of the molded part.

After the injection mold 2 is installed on an injection molding machine, a pushing structure on the injection molding machine is connected with the thimble seat 51 and drives the thimble seat 51 to reciprocate, after the part is molded, the pushing structure on the injection molding machine drives the thimble seat 51 to move towards the direction close to the cavity 32, and in the moving process, the thimble rod 52 can eject the part out of the lower mold box 28, so that the demolding is realized.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims

1. The utility model provides an injection mold convenient to drawing of patterns, includes cope match-plate pattern (23) and lower bolster (24), leaves cavity (32) of usefulness of moulding plastics between cope match-plate pattern (23) and lower bolster (24), its characterized in that: two injection molding blocks (31) are embedded in the side face, close to the upper template (23), of the lower template (24), the two injection molding blocks (31) are oppositely arranged on two sides of the cavity (32), and a driving assembly (4) for driving the two injection molding blocks (31) to move towards the direction close to or away from each other is arranged on the lower template (24).

2. The injection mold for facilitating demolding as claimed in claim 1, wherein: drive assembly (4) are including drawing block (41), the one end of keeping away from each other at two injection molding pieces (31) is fixed in drawing block (41), one side that injection molding piece (31) were kept away from in drawing block (41) is provided with sliding block (42) that can remove along with cope match-plate pattern (23), drawing block (41) and sliding block (42) are provided with linkage piece (43) before, linkage piece (43) along from keeping away from to being close to the direction slope of direction of cope match-plate pattern (23) to being close to injection molding piece (31), set up on drawing block (41) with the pull groove (45) of linkage piece (43) looks adaptation.

3. An injection mold for facilitating demolding as claimed in claim 2, wherein: at least two groups of injection molding blocks (31) which are arranged oppositely are arranged between the upper template (23) and the lower template (24).

4. An injection mold for facilitating demolding as claimed in claim 3, wherein: a synchronous block (44) is arranged between the two adjacent groups of injection molding blocks (31), and the synchronous block (44) is fixedly connected with the two sliding blocks (42) on the two adjacent groups of injection molding blocks (31).

5. An easy-to-demold injection mold as defined in any one of claims 1-4, wherein: an ejector plate (25) is arranged on one side of the lower template (24) far away from the upper template (23), and an ejector rod (52) which extends into the cavity (32) and can move back and forth is arranged on the ejector plate (25).

6. An injection mold for facilitating demolding as claimed in claim 5, wherein: the two ejector pins (52) are arranged in total, and the distance between the two ejector pins (52) and the two transmission plates (11) is equal and can be abutted on the two transmission plates (11) of the formed workpiece.

7. An injection mold for facilitating demolding as claimed in claim 5, wherein: the two ejector pins (52) are arranged, and the two ejector pins (52) can abut against the clamping block (12).

8. An injection mold for facilitating demolding as claimed in claim 2, wherein: the sliding block (42) is detachably mounted on the upper template (23) through a fixing bolt.