CN215242245U

CN215242245U - Ejection device and mold

Info

Publication number: CN215242245U
Application number: CN202023071534.3U
Authority: CN
Inventors: 沈汉明; 梁隆富; 何霞; 俞土新; 赵伟锋; 马重松
Original assignee: Fu Tai Hua Precision Electronic Zhengzhou Co Ltd
Current assignee: Fulian Precision Electronics Zhengzhou Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-12-21
Anticipated expiration: 2030-12-18

Abstract

The utility model provides an ejection device and a mould, wherein the ejection device comprises a lower mould core, two relatively vertically arranged angle pins and a top plate component; the lower die core is used for bearing a product, the lower die core is provided with two sliding grooves for the inclined pins to vertically penetrate through, each sliding groove comprises a first groove section and a second groove section, the first groove section comprises a vertically arranged first side wall, the second groove section comprises an inclined second side wall, each inclined pin comprises a vertically arranged clamping section, an inclined abutting section and a vertically arranged ejection section, the clamping section is used for clamping the product, and the abutting section is used for abutting against the first side wall of the first groove section so as to drive the inclined pins to rotate; the ejection section is rotatably arranged on the top plate assembly, the top plate assembly drives the two taper pins to move upwards in the two sliding grooves, so that the clamping sections of the two taper pins drive the product to move upwards to be separated from the lower die core, and when the abutting section of the taper pins moves to abut against the first side wall of the first groove section, the clamping sections of the two taper pins are driven to loosen the product. The ejection device and the mold avoid pulling the product, and ensure the ejection stability.

Description

Ejection device and mold

Technical Field

The application relates to the field of mold processing, in particular to an ejection device and a mold applying the ejection device.

Background

At present, when a mold is opened, a sliding block insert clamped on a product is driven to be separated through a sliding block connecting rod, then the product is ejected out through an ejector pin, the mold space is large due to the structure of the sliding block connecting rod and the sliding block insert, the product is ejected out through the ejector pin, the ejection force is small, and the side wall of the product is easily damaged.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide an ejection apparatus and a mold, which can reduce the mold space and prevent the sidewall of the product from being damaged when ejecting the product.

The embodiment of the application provides an ejection device, which comprises a lower die core, two opposite vertical taper pins and a top plate assembly; the lower die core is used for bearing a product, the lower die core is provided with two sliding grooves for the angle pin to vertically penetrate through, each sliding groove comprises a first groove section and a second groove section, the first groove section comprises a vertically arranged first side wall, the second groove section comprises an obliquely arranged second side wall, and the first side wall and the second side wall are in transition through chamfering; the two angle pins vertically penetrate through the two chutes of the lower die core respectively and are used for clamping the product; each angle pin consists of a vertical clamping section, an inclined abutting section and a vertical ejection section, wherein the clamping section is used for clamping the product, and the abutting section is used for abutting against the first side wall of the first groove section so as to drive the angle pin to rotate around the direction vertical to the motion direction of the angle pin; the tail end of the ejection section is rotatably connected with the top plate assembly, the top plate assembly drives the two angle pins to move upwards in the two sliding grooves, so that the clamping sections of the two angle pins drive the product to move upwards to be separated from the lower die core, and when the top plate assembly drives the abutting sections of the two angle pins to move to abut against the first side wall of the first groove section, the top plate assembly can drive the two angle pins to rotate back to back in a direction perpendicular to the moving direction of the two angle pins, so that the clamping sections of the two angle pins loosen the product.

Further, in some embodiments of the present application, the top plate assembly includes a first top plate and a second top plate which are stacked, the first top plate is provided with a plurality of through grooves, and the ends of the ejection sections of the angle pins are rotatably disposed in the corresponding through grooves.

Further, in some embodiments of the present application, the ejection mechanism further includes a fixing member, the fixing member is disposed in the through groove, one end of the fixing member abuts against the second top plate, the fixing member is provided with an arc-shaped groove, the end of the ejection section of the taper pin is provided with a rotation portion matched with the arc-shaped groove, and the rotation portion is rotatably disposed in the arc-shaped groove.

Further, in some embodiments of the present application, the ejection device further includes an ejector pin, one end of the ejector pin penetrates through the first ejector plate and is connected to the second ejector plate, and the other end of the ejector pin movably penetrates through the lower mold core and is used for abutting against and jacking up a product.

Further, in some embodiments of the present application, the clamping section of the taper pin is provided with a lifting surface for supporting a product, and the lifting surface is formed by recessing the end surface of the clamping section of the taper pin toward the direction of the abutting section.

Further, in some embodiments of the present application, the inner side surface of the clamping section is provided with a protrusion, and an extending direction of the protrusion is perpendicular to a length direction of the angle pin, so as to fasten a product.

Further, in some embodiments of the present application, a mounting groove is formed in the lower mold core, the mounting groove is used for mounting a product, and the two sliding grooves are located on two sides of the mounting groove.

Further, in some embodiments of the present application, the second sidewall is flared from one end connected to the first sidewall to the other end.

Further, in some embodiments of the present application, a width of a transverse cross section of the holding section of the skew pin is greater than a width of the first slot segment and less than a width of the second slot segment.

The embodiment of this application still provides a mould, including last mould benevolence and lower mould benevolence, it is used for the shaping product to go up mould benevolence and lower mould benevolence, the mould still includes ejecting device, ejecting device locates in the lower mould benevolence to the product after ejecting shaping.

The ejection device drives the abutting sections of the two angle pins to move to the first side wall of the abutting first groove section, the ejection sections rotate in the top plate assembly, the angle pins are driven to be separated from a product and eject the product out of the lower die core, the product is prevented from being damaged by small ejector pin force when the product is ejected, ejection stability is guaranteed, the die is prevented from being demolded by a structure of a slide block connecting rod and a slide block insert, the space of the die is reduced, and the manufacturing cost of the die is reduced.

Drawings

Fig. 1 illustrates a schematic structural diagram of an ejection device in an embodiment.

Fig. 2 is a schematic cross-sectional view of the lower mold insert along direction III in an embodiment.

Fig. 3 illustrates a schematic cross-sectional view in direction III of an ejection device in an embodiment.

FIG. 4 illustrates a schematic structural diagram of a top plate assembly in one embodiment.

Fig. 5 illustrates a schematic structural diagram of a mold in one embodiment.

Description of the main elements

Ejection device 100

Lower die

core

10, 400

Chute 11

First groove section 111

First side wall 1111

Second groove section 112

Second side wall 1121

Third trough section 113

Carrier plate 1131

Mounting groove 12

Mold cavity 121

Channel 13

Thimble 131

Angle pin 20

Clamping section 21

Lifting surface 211

Bump 212

Sustaining section 22

Support wall 221

Ejecting section 23

Rotating part 231

Top plate assembly 30

First top board 31

Through slot 311

Mounting hole 312

Fixing member 313

Arc groove 3131

Second top board 32

Product 200

Upper mold core 300

The following specific examples will further illustrate the application in conjunction with the above figures.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components 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 application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The embodiment of the application provides an ejection device, which comprises a lower die core, two opposite vertical taper pins and a top plate assembly; the lower die core is used for bearing a product, the lower die core is provided with two sliding grooves for the angle pin to vertically penetrate through, each sliding groove comprises a first groove section and a second groove section, the first groove section comprises a vertically arranged first side wall, the second groove section comprises an obliquely arranged second side wall, and the first side wall and the second side wall are in transition through chamfering; the two angle pins vertically penetrate through the two chutes of the lower die core respectively and are used for clamping the product; each angle pin consists of a vertical clamping section, an inclined abutting section and a vertical ejection section, wherein the clamping section is used for clamping the product, and the abutting section is used for abutting against the first side wall of the first groove section so as to drive the angle pin to rotate around the direction vertical to the motion direction of the angle pin; the tail end of the ejection section is rotatably arranged on the top plate assembly, the top plate assembly drives the two angle pins to move upwards in the two sliding grooves, so that the clamping sections of the two angle pins drive the product to move upwards to be separated from the lower die core, and when the top plate assembly drives the abutting sections of the two angle pins to move to abut against the first side wall of the first groove section, the top plate assembly can drive the two angle pins to rotate back to back in the direction perpendicular to the moving direction of the two angle pins, so that the clamping sections of the two angle pins loosen the product.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, an ejection apparatus 100 shown in fig. 1 is used for ejecting a product from a mold, and the ejection apparatus 100 includes a lower mold core 10, two relatively vertically arranged angle pins 20, and a top plate assembly 30. The lower mold core 10 is used for bearing a product 200, the two taper pins 20 are vertically arranged in the lower mold core 10 relatively and used for clamping the product 200, the top plate assembly 30 is located below the lower mold core 10 and connected with the two taper pins 20 and used for driving the two taper pins 20 to move up and down along the vertical direction, when the top plate assembly 30 drives the two taper pins 20 to move up along the vertical direction, the product 200 is driven to move up through the two taper pins 20, so that the product 200 is separated from the lower mold core 10, and the product 200 is loosened by the two taper pins 20, so that the ejected product 200 can be taken away conveniently.

Referring to fig. 2 and 3, the lower mold core 10 has two opposite sliding grooves 11, which are respectively used for arranging the angle pin 20, so that the angle pin 20 can move in the corresponding sliding groove 11. Each sliding chute 11 comprises a first chute section 111 and a second chute section 112 which are communicated with each other, the width of the first chute section 111 is smaller than that of the second chute section 112, the second chute section 112 is flared, and specifically, the width of the second chute section 112 is gradually increased from one end connected with the first chute section 111 to the direction of the top plate assembly 30. The first groove section 111 includes a first side wall 1111 disposed vertically, the second groove section 112 includes a second side wall 1121 disposed obliquely, the first side wall 1111 is connected to the second side wall 1121, and a junction of the first side wall 1111 and the second side wall 1121 is a chamfer. In one embodiment, the second sidewall 1121 is disposed in a flaring shape from one end connected to the first sidewall 1111 to the other end.

Furthermore, each sliding chute 11 further comprises a third groove section 113, the third groove section 113 is communicated with the first groove section 111, and a bearing plate 1131 protruding out of the inner wall of the sliding chute 11 is arranged at the communication position of the third groove section 113 and the first groove section 111 and is used for bearing the taper pin 20. The width of the third groove section 113 is greater than the width of the first groove section 111, and the width of the third groove section 113 is gradually increased from one end communicated with the first groove section 111 to the direction of the bearing surface of the lower mold core.

Referring to fig. 2 and 3, the lower mold core 10 further has a mounting groove 12, two sides of the mounting groove 12 are respectively provided with a sliding groove 11, and the mounting groove 12 is matched with an inclined pin 20 in the sliding groove 11 to form a molding cavity 121 of a product. A channel 13 is further arranged in the lower die core 10, one end of the channel 13 is communicated with the bottom surface of the molding cavity 121, the other end of the channel 13 penetrates through the bottom of the lower die core 10, an ejector pin 131 is slidably arranged in the channel 13, one end of the ejector pin 131 is used for abutting against a product, and the other end of the ejector pin 131 is connected with the top plate assembly 30. When a product 200 is in the molding cavity 121, one end of the ejector pin 131 is connected to the top plate assembly 30, and the other end of the ejector pin 131 abuts against the product 200, so that the ejector pin 131 is driven by the top plate assembly 30 to move upwards abutting against the product 200, and the product 200 is ejected out of the molding cavity 121.

Referring to fig. 3, the inclined pin 20 includes a clamping section 21, a holding section 22 and an ejecting section 23, the clamping section 21 and the ejecting section 23 are disposed substantially in parallel along a vertical direction, the holding section 22 is disposed in an inclined manner relative to the clamping section 21 and the ejecting section 23, and two ends of the holding section 22 are respectively connected to the clamping section 21 and the ejecting section 23. In one embodiment, the clamping section 21, the abutting section 22 and the ejecting section 23 are integrally formed and have elasticity.

The clamping section 21 is disposed in the third groove section 113, and one end of the clamping section 21 away from the holding section 22 is at the same level with the upper surface of the lower mold core 10. In an embodiment, the end surface of the clamping section 21 is recessed toward the direction of the holding section 22 to form a lifting surface 211, and the lifting surface 211 is used for cooperating with the structure of the product 200 to support the position of the product 200. Specifically, the product 200 is provided with a protruding edge on one side facing the taper pin 20, and the protruding edge is supported on the lifting surface 211.

In an embodiment, the clamping section 21 is further provided with a bump 212, the bump 212 is located on a side of the clamping section 21 facing the forming cavity 121, and an extending direction of the bump 212 is perpendicular to a length direction of the inclined pin 20, for clamping the product 200 when the product 200 is formed, so that the inclined pin 20 can eject the product 200 through the bump 212. In one embodiment, the end of the clamping section 21 away from the sustaining section 22 is wedge-shaped, and the protrusion 212 is located on the inner side of the clamping portion.

The inclined direction of the abutting section 22 is substantially the same as the flaring direction of the second groove section 112, the width of the horizontal section of the abutting section 22 is larger than the width of the first groove section 111 and smaller than the width of the second groove section 112, when the abutting section 22 abuts against the first side wall 1111 of the first groove section 111, the clamping section 21 can be driven to rotate around the direction perpendicular to the moving direction of the taper pin 20, so that the clamping section 21 drives the bump 212 to separate from the product 200, the product 200 is loosened, and the ejected product 200 can be taken out conveniently.

One end of the ejection section 23 is connected to the abutting section 22, and the other end is rotatably disposed in the top plate assembly 30. In an embodiment, a rotating portion 231 is disposed at an end of the ejecting section 23 facing the top plate assembly 30, and when the abutting section 22 abuts against the first side wall 1111 of the first groove section 111, the rotating portion 231 can be driven to rotate relative to the top plate assembly 30. In one embodiment, the rotating portion 231 is substantially cylindrical in configuration.

The top plate assembly 30 drives the abutting section 22 to move towards the first groove section 111 along the vertical direction, when the abutting wall 221 of the abutting section 22 abuts against the first side wall 1111, the abutting section 22 can drive the clamping section 21 to rotate around the direction perpendicular to the moving direction of the taper pin 20, and simultaneously drive the rotating portion 231 to rotate in the top plate assembly 30, so that the abutting section 22 is far away from the product 200, and further the clamping section 21 ejects the product 200 and simultaneously drives the bump 212 to be separated from the product 200, so that the taper pin 20 is separated from the product 200 and ejects the product 200 out of the lower mold core 10.

Referring to fig. 3 and 4, the top plate assembly 30 includes a first top plate 31 and a second top plate 32 which are stacked. The first top plate 31 is provided with a plurality of through slots 311 arranged oppositely, and the rotating part 231 at the tail end of the ejecting section 23 is rotatably arranged in the through slots 311. Every two through slots 311 are correspondingly arranged to match the positions of two angle pins 20. In an embodiment, a mounting hole 312 is further disposed between the two corresponding through slots 311 for mounting the thimble 131, the mounting hole 312 penetrates through the first top plate 31, one end of the thimble 131 is disposed in the mounting hole 312 and connected to the second top plate 32, and the second top plate 32 drives the thimble 131 to move up and down in the lower mold core 10. It is understood that the mounting hole 312 may also be a half-hole formed in the first top plate 31, and the thimble 131 is moved by the first top plate 31. The second top plate 32 is connected to a power device, and drives the top plate assembly 30 to move toward the lower mold core 10.

In an embodiment, the through slot 311 is provided with a fixing element 313 therein, one end of the fixing element 313 abuts against the second top plate 32, the other end is provided with an arc-shaped groove 3131 matched with the rotating portion 231, the rotating portion 231 is rotatably disposed in the arc-shaped groove 3131, and when the abutting section 22 abuts against the first side wall 1111, the rotating portion 231 can be driven to rotate in the arc-shaped groove 3131.

When the ejection device 100 is used, the top plate assembly 30 drives the abutting section 22 to move toward the first groove section 111, the first side wall 1111 abuts against the abutting wall 221 of the abutting section 22 facing the second side wall 1121, the rotating portion 231 rotates in the arc-shaped groove 3131, so that the clamping section 21 rotates in a direction perpendicular to the moving direction of the inclined pin 20, the abutting section 22 is away from the product 200, and the protrusion 212 is away from the product 200 while the clamping section 21 ejects the product 200, so that the inclined pin 20 is separated from the product 200 and ejects the product 200 out of the lower mold core 10.

The ejection device 100 realizes back-off demolding and ejects the product 200 through the angle pin 20, so that the length of a stub bar is reduced, raw materials are saved, the ejector pin 131 is used as an auxiliary device, the product is prevented from being damaged by small force of the ejector pin 131 when the product is ejected, and the ejection stability is ensured.

Referring to fig. 5, the present application provides a mold 1000, which includes an upper mold core 300 and a lower mold core 400, wherein a molding cavity is formed when the upper mold core 300 and the lower mold core 400 are closed, so as to mold a product. The structure of the lower mold core 400 is the same as the structure of the lower mold core 10, and the lower mold core 400 is provided therein with an inclined pin 20, and the inclined pin 20 is connected to the top plate assembly 30. After the upper mold core 300 and the lower mold core 400 are opened, the top plate assembly 30 drives the taper pin 20 to move in the lower mold core 400, so that the taper pin 20 drives the product to move and separate from the product, and the product in the molding cavity is ejected out of the lower mold core 400.

The die 1000 avoids demoulding by using a structure of the slide block connecting rod and the slide block insert, reduces the space of the die and reduces the manufacturing cost of the die.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not to be taken as limiting the present application, and that suitable changes and modifications to the above embodiments are within the scope of the present disclosure as long as they are within the spirit and scope of the present application.

Claims

1. An ejection device is characterized by comprising a lower die core, two opposite vertical taper pins and a top plate assembly;

the lower die core is used for bearing a product, the lower die core is provided with two sliding grooves for the angle pin to vertically penetrate through, each sliding groove comprises a first groove section and a second groove section, the first groove section comprises a vertically arranged first side wall, the second groove section comprises an obliquely arranged second side wall, and the first side wall and the second side wall are in transition through chamfering;

the two angle pins vertically penetrate through the two chutes of the lower die core respectively and are used for clamping the product; each angle pin consists of a vertical clamping section, an inclined abutting section and a vertical ejection section, wherein the clamping section is used for clamping the product, and the abutting section is used for abutting against the first side wall of the first groove section so as to drive the angle pin to rotate around the direction vertical to the motion direction of the angle pin; the tail end of the ejection section is rotatably connected with the top plate assembly, the top plate assembly drives the two angle pins to move upwards in the two sliding grooves, so that the clamping sections of the two angle pins drive the product to move upwards to be separated from the lower die core, and when the top plate assembly drives the abutting sections of the two angle pins to move to abut against the first side wall of the first groove section, the top plate assembly can drive the two angle pins to rotate back to back in a direction perpendicular to the moving direction of the two angle pins, so that the clamping sections of the two angle pins loosen the product.

2. The ejection device according to claim 1, wherein the top plate assembly comprises a first top plate and a second top plate which are stacked, the first top plate is provided with a plurality of through grooves, and the tail ends of the ejection sections of the angle pins are rotatably arranged in the corresponding through grooves.

3. The ejection device according to claim 2, wherein the ejection mechanism further comprises a fixing member, the fixing member is disposed in the through groove, one end of the fixing member abuts against the second top plate, the fixing member is provided with an arc-shaped groove, the end of the ejection section of the angle pin is provided with a rotating portion matched with the arc-shaped groove, and the rotating portion is rotatably disposed in the arc-shaped groove.

4. The ejection device according to claim 2, further comprising an ejector pin, wherein one end of the ejector pin penetrates through the first ejector plate and is connected with the second ejector plate, and the other end of the ejector pin movably penetrates through the lower mold core and is used for abutting against and jacking a product.

5. The ejection device according to claim 1, wherein the holding section of the angle pin is provided with a lifting surface for supporting the product, and the lifting surface is formed by recessing the end surface of the holding section of the angle pin toward the direction of the abutting section.

6. The ejection device of claim 1, wherein the inner side of the clamping section is provided with a projection, and the projection extends in a direction perpendicular to the length direction of the angle pin for buckling the product.

7. The ejection device according to claim 1, wherein the lower mold core is provided with an installation groove for installing a product, and the two sliding grooves are located at two sides of the installation groove.

8. The ejector device of claim 1, wherein said second side wall flares from one end connected to said first side wall to the other end.

9. The ejector device of claim 1, wherein the width of the transverse cross-section of the retaining section of the angle pin is greater than the width of the first channel section and less than the width of the second channel section.

10. A mold comprising an upper core and a lower core for molding a product, and an ejector according to any one of claims 1 to 9, the ejector being provided in the lower core to eject the molded product.