CN211807624U

CN211807624U - Die set

Info

Publication number: CN211807624U
Application number: CN201922089199.0U
Authority: CN
Inventors: 孙金鑫; 陈秀锋; 阮班林
Original assignee: Futaihua Precision Electronic Jiyuan Co Ltd
Current assignee: Fulian Technology (Jiyuan) Co.,Ltd.
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-10-30
Anticipated expiration: 2029-11-27

Abstract

A mold comprises a male mold, a first female mold and a second female mold, wherein the male mold comprises a male mold core, a slide block penetrating the male mold core, an insert seat movably arranged on the male mold core and an insert arranged on the insert seat, the male die core is provided with a molding area, the first female die is provided with a first matching cavity matched with the molding area, so as to form a first workpiece, the second female die comprises a second female die core and a shifting block arranged on the second female die core, the shifting block is used for being matched with the insert seat to enable the insert to move towards the sliding block, the insert is used for being matched with the sliding block to enable the sliding block to move to penetrate out of the forming area from the core insert, the second cavity insert is provided with a second matching cavity matched with the forming area and the sliding block so as to form a second workpiece on the first workpiece.

Description

Die set

Technical Field

The utility model relates to a former especially relates to a mould.

Background

The industry often needs to use two shot injection molding to carry out processing production to because the product structure is limited, often need increase side core pulling structure, obtain the injection moulding product. Traditional side direction loose core mould structure is complicated, and the mould part is more, and the process is complicated.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a mold.

Furthermore, a guide hole is formed in one side, away from the forming area, of the sliding block, a driving portion is arranged on one side, away from the insert seat, of the insert, and the driving portion is used for being matched with the guide hole to enable the sliding block to move towards the forming area.

Further, the guiding hole is a wedge-shaped groove, and the driving part is wedge-shaped.

Furthermore, a shifting part is arranged at one end, facing the sub-base, of the shifting block, a matching groove is formed in the sub-base relative to the shifting part, and the shifting part is used for being matched with the matching groove to enable the sub-base to move towards the sliding block.

Furthermore, the matching groove is a chute, and the poking part is in an inclined block shape.

Furthermore, the male die further comprises an elastic piece, and the elastic piece is abutted between the insert seat and the male die core.

Further, the elastic member is a spring.

Furthermore, the first female die comprises a first female die core and a first elastic block arranged in the first female die core, the first female die core is provided with a first matching cavity, and the first elastic block extends into the first matching cavity so as to separate the first workpiece from the first matching cavity after the first workpiece is formed by injection molding.

Furthermore, the second female die also comprises a second elastic block arranged in the second female die core, and the second elastic block extends into the second matching cavity so as to separate the first workpiece, the second workpiece and the second matching cavity after the second workpiece is formed by injection molding.

Further, the male die also comprises a top rod penetrating through the forming area.

The mould enables the second female die to move downwards to be converted into the movement of the sliding block to the forming area through the matching of the insert and the sliding block and the matching of the shifting block and the insert seat, so that the second workpiece connected with the first workpiece can be formed on the first workpiece when the secondary injection molding is carried out, the structure is simple, the operation is convenient, the sliding block can be replaced through the mould, the second workpieces with different characteristic parts can be obtained, different products can be obtained, and the processing efficiency and the yield are improved.

Drawings

Fig. 1 is a schematic perspective view of a male mold and a first female mold of a mold according to an embodiment of the present invention.

FIG. 2 is a partially exploded perspective view of the male mold half and the first female mold half shown in FIG. 1.

Fig. 3 is a cross-sectional view of the mold shown in fig. 1 taken along III-III.

Fig. 4 is a schematic perspective view of a male mold and a second female mold of the mold according to an embodiment of the present invention.

FIG. 5 is a partially exploded perspective view of the male mold half and the second female mold half of FIG. 4.

FIG. 6 is a perspective view of the male mold half and the second female mold half of FIG. 5 from another perspective.

Fig. 7 is a cross-sectional view of the mold shown in fig. 4 taken along VII-VII.

Description of the main elements

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 7, an embodiment of the present invention provides a mold 100 for injection molding a product 200. The mold 100 forms a workpiece twice by sequential injection molding: the first workpiece 201 and the second workpiece 202 obtain the injection molding product 200. The mold 100 includes a male mold half 10, a first female mold half 20, and a second female mold half 30. When the first female mold 20 is pressed on the male mold 10, a first workpiece 201 is formed on the male mold 10 by injection molding. When the second female die 30 is pressed on the male die 10, a second workpiece 202 connected with the first workpiece 201 is formed on the first workpiece 201 formed by the male die 10 in an injection molding mode.

The male mold 10 includes a male mold core 11, a slide block 12, a insert seat 13, an insert 14 and an elastic member 15. One surface of the core insert 11 is provided with a molding region 111 for cooperating with the first female mold 20 and the second female mold 30. The molding zone 111 is used to mold the product 200. The forming area 111 is provided with a slider hole 112 in an area for forming the second workpiece 202. The slider 12 is slidably disposed through the slider aperture 112. The side of the shoe 12 adjacent to the forming zone 111 is contoured to match the second workpiece 202. The side wall of the core insert 11 near the slide block hole 112 is provided with a sub-insert hole 113. The sub-inlet 113 communicates with the slider hole 112. The insert seat 13 is movably disposed on the side wall of the core insert 11 close to the slide block hole 112. The insert 14 is disposed on the insert seat 13 and penetrates the insert hole 113 to abut against the slide block 12. When the insert 14 moves toward the slider 12, the slider 12 can be lifted up to protrude out of the slider hole 112. The elastic member 15 is disposed between the insert seat 13 and the core 11. The elastic member 15 serves to restore the sub-mount 13. In one embodiment, the elastic member 15 is a spring.

The slider 12 is provided with a guide hole 121 on a side thereof away from the molding region 111. The driver 141 is disposed on the side of the insert 14 away from the insert seat 13. When the insert 14 moves toward the slider 12, the driving portion 141 may be engaged with the guide hole 121 of the slider 12 to move the slider 12 toward the molding zone 111.

The first female mold 20 includes a first female mold core 21 and a plurality of first elastic blocks 22 disposed in the first female mold core 21. A first matching cavity 211 is formed in a surface of the first cavity insert 21 facing the core insert 11 and opposite to the molding region 111. When the first cavity insert 21 is pressed on the core insert 11, the first mating cavity 211 is mated with the molding region 111 to form a first workpiece 201 by injection molding. The portion of the first spring block 22 extending into the first mating cavity 211 matches the feature of the first workpiece 201. The first elastic block 22 is used for separating the first workpiece 201 from the first matching cavity 211 after the first workpiece 201 is formed by injection molding.

The second female mold 30 includes a second female mold core 31, a shifting block 32, and a plurality of second elastic blocks 33 disposed in the second female mold core 31. A second matching cavity 311 is formed in a surface of the second cavity insert 31 facing the core insert 11, opposite to the molding region 111.

The shifting block 32 is disposed on the second cavity insert 31 and has a shifting portion 321 at an end facing the insert seat 13. The insert seat 13 is provided with a matching groove 131 corresponding to the toggle part 321. The poking portion 321 is used for matching with the matching groove 131 when the second cavity insert 31 is pressed on the core insert 11, so that the insert seat 13 moves towards the slider 12, and the insert 14 arranged thereon is driven to move towards the slider 12. Although the shifting block 32 is not shown in the drawings to be connected to the second cavity insert 31, for convenience of manufacturing, the shifting block 32 and the second cavity insert 31 are connected, and the connection manner may be a fixed connection or a detachable connection, and of course, the shifting block 32 and the second cavity insert 31 may also be separate components, and when or after the second cavity mold 30 and the male mold 10 are closed, the shifting portion 321 of the shifting block 32 is engaged with the engaging groove 131 of the insert seat 13 by, for example, a manual operation or other known manners, so that the insert seat 13 is moved toward the slide block 12, and the insert 14 disposed thereon is moved toward the slide block 12.

When the second cavity insert 31 is pressed on the core insert 11, the side of the sliding block 12 matching with the second workpiece 202 is moved to the forming area 111, and the second matching cavity 311, the sliding block 12 and the forming area 111 are matched to form the second workpiece 202 on the first workpiece 201 of the forming area 111 by injection molding, so as to obtain the product 200.

The portion of the second spring block 33 extending into the second mating cavity 311 matches the features of the product 200. The second elastic block 33 is used for separating the molded product 200 from the second matching cavity 311 after the second workpiece 202 is formed by injection molding.

In one embodiment, the guiding hole 121 is a wedge-shaped slot, and the driving portion 141 is wedge-shaped. The engaging groove 131 is a slanted groove, and the striking part 321 is a slanted block. The angles of the guide hole 121 and the driving portion 141, and the inclination angles of the engaging groove 131 and the toggle portion 321 may be set according to the distance that the slider 12 needs to be jacked up and extend out of the slider hole 112.

In one embodiment, the male mold further comprises a mandrel (not shown). The ejector pin penetrates through the molding area 111 of the core insert 11. The ejector pins are used for ejecting the product 200 from the molding area 111 after the secondary injection molding.

When in use, the first cavity insert 21 is pressed on the core insert 11, and at this time, the first matching cavity 211 and the forming area 111 form an injection molding cavity of the first workpiece 201; meanwhile, the first cavity insert 21 presses the slide block 12 inserted into the slide block hole 112 downward, and the first workpiece 201 is formed by injecting into the first matching cavity 211 and the molding area 111. Subsequently, the first female die 20 is removed, and the second female die 30 is pressed on the core insert 11, at this time, the second matching cavity 311 and the molding area 111 form an injection molding cavity of the second workpiece 202; meanwhile, the shifting block 32 is pressed down along with the second cavity insert 31 and extends into the matching groove 131 of the insert seat 13, the insert seat 13 drives the insert 14 to move towards the slider 12 under the matching of the shifting portion 321 and the matching groove 131, then the slider 12 moves towards the molding area 111 under the matching of the driving portion 141 of the insert 14 and the guide hole 121 of the slider 12, at this time, the profiling side of the slider 12 matched with the second workpiece 202 extends into the injection molding cavity of the second workpiece 202, and the second workpiece 202 mutually locked with the first workpiece 201 is formed by injection molding into the second matching cavity 311, the slider 12 and the molding area 111, so that the product 200 is obtained.

The mold 100 converts the downward movement of the second female mold 30 into the movement of the slider 12 into the forming area 111 through the matching of the insert 14 and the slider 12 and the matching of the shifting block 32 and the insert seat 13, so that a structure matched with the characteristic part of the second workpiece 202 appears in the area where the second workpiece 202 is formed in the forming area 111, and the second workpiece 202 connected with the first workpiece 201 can be formed on the first workpiece 201 during secondary injection molding, so that the product 200 is obtained, the structure is simple, the operation is convenient, the second workpiece 202 with different characteristic parts can be obtained by replacing the slider 12, different products can be obtained, and the processing efficiency and the yield are improved.

In addition, other changes may be made by those skilled in the art without departing from the spirit of the invention, and it is intended that all such changes be considered within the scope of the invention.

Claims

1. The utility model provides a mold, includes public mould, first master model and second master model, its characterized in that: the male die comprises a male die core, a sliding block penetrating through the male die core, a male die base movably arranged on the male die core and a male die arranged on the male die base, wherein a forming area is arranged on the male die core, the first female die is provided with a first matching cavity matched with the forming area so as to form a first workpiece, the second female die comprises a second female die core and a shifting block arranged on the second female die core, the shifting block is matched with the male die base so that the male die moves towards the sliding block, the male die is matched with the sliding block so that the sliding block moves to penetrate out of the forming area from the male die core, and the second female die core is provided with a second matching cavity matched with the forming area and the sliding block so as to form a second workpiece on the first workpiece.

2. The mold of claim 1, wherein: the slider is kept away from one side in the shaping district has seted up the guiding hole, it keeps away from to go into the son one side of son seat is provided with drive division, drive division be used for with the guiding hole cooperation makes the slider orientation the shaping district removes.

3. The mold of claim 2, wherein: the guiding hole is a wedge-shaped groove, and the driving part is wedge-shaped.

4. The mold of claim 1, wherein: one end of the shifting block, facing the sub-base, is provided with a shifting portion, the sub-base is provided with a matching groove relative to the shifting portion, and the shifting portion is used for matching with the matching groove to enable the sub-base to move towards the sliding block.

5. The mold of claim 4, wherein: the matching groove is a chute, and the poking part is in an inclined block shape.

6. The mold of claim 1, wherein: the male die further comprises an elastic piece, and the elastic piece is abutted between the insert seat and the male die core.

7. The mold of claim 6, wherein: the elastic piece is a spring.

8. The mold of claim 1, wherein: the first female die comprises a first female die core and a first elastic block arranged in the first female die core, the first female die core is provided with a first matching cavity, and the first elastic block extends into the first matching cavity so as to separate the first workpiece from the first matching cavity after the first workpiece is formed by injection molding.

9. The mold of claim 1, wherein: the second female die also comprises a second elastic block arranged in the second female die core, and the second elastic block extends into the second matching cavity so as to separate the first workpiece, the second workpiece and the second matching cavity after the second workpiece is formed by injection molding.

10. The mold of claim 1, wherein: the male die further comprises a top rod penetrating through the forming area.