CN214491290U

CN214491290U - Novel ejection device for cold pressing forming die

Info

Publication number: CN214491290U
Application number: CN202022761901.6U
Authority: CN
Inventors: 丁杰
Original assignee: Shanghai Huagu Vehicle Industry Co ltd
Current assignee: Shanghai Huagu Vehicle Industry Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-10-26
Anticipated expiration: 2030-11-25

Abstract

The utility model relates to a novel cold press forming die ejecting device, including mould and at least one ejecting subassembly, be equipped with the die cavity and at least one ejecting passageway that are used for the part moulding on the mould, ejecting passageway locates the bottom of die cavity and is linked together with the die cavity, the junction activity of die cavity and ejecting passageway is equipped with the kicking block, ejecting subassembly includes ejecting body and locates the ejector pin on the ejecting body, the below of mould is located to ejecting body, the ejector pin is movably located in the ejecting passageway, the upper surface of kicking block is equipped with the profile face with the outline looks adaptation of part, the lower surface and the ejector pin of kicking block contact. Compared with the prior art, the utility model discloses can realize that the bottom of part and die cavity breaks away from completely, make things convenient for taking out smoothly of part, improve the manual work and get an efficiency, reduce the disability rate that the part caused because of getting.

Description

Novel ejection device for cold pressing forming die

Technical Field

The utility model belongs to the mould field, concretely relates to novel cold pressing forming die is ejecting device.

Background

At present, the automobile industry enters a stable development stage, and the requirements of a host factory client on felt parts are higher and higher, especially the requirements of a new energy host factory are stricter. Considering the battery layout and the space utilization rate of the host, the demolding angle of the last felt part design is very small, so that the parts are very difficult to take out, generally, the parts taken out are deformed in different degrees, and even more, the parts are broken by pulling, so that the parts are scrapped, and the unnecessary production cost of the parts is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel cold press forming die ejecting device can realize that the bottom of part and die cavity breaks away from completely, makes things convenient for taking out smoothly of part, improves the manual work and gets an efficiency, reduces the part because of getting the disability rate that the piece caused.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a novel forming die ejecting device colds pressing, ejecting device includes mould and at least one ejecting subassembly, be equipped with the die cavity and at least one ejecting passageway that are used for the part moulding on the mould, ejecting passageway locates the bottom of die cavity and is linked together with the die cavity, the junction activity of die cavity and ejecting passageway is equipped with the kicking block, ejecting subassembly includes ejecting body and locates the ejector pin on the ejecting body, the below of mould is located to ejecting body, the ejector pin is movably located in the ejecting passageway, the upper surface of kicking block is equipped with the profile face with the outline looks adaptation of part, the lower surface and the ejector pin of kicking block contact. And after the part is cold-pressed and shaped in the die cavity, the ejector rod is utilized to move the ejector block upwards, so that the part is pushed out of the die cavity. The ejector rod in the ejection assembly can adopt an auxiliary cylinder of a pneumatic, electric or hydraulic device so as to eject and withdraw the ejector block, and when the ejector rod is withdrawn, the ejector block can be withdrawn downwards due to gravity.

When the ejection channel is one, the mold cavity and the ejection channel are coaxially arranged, so that the ejector rod can completely eject the part in the mold cavity.

The ejection channel is arranged at the part with a stronger structure, generally at least two parts, so that the parts positioned in the die cavity can be ejected under the condition of as few contact points as possible, the number of ejection assemblies is reduced, and members are saved.

The depth of the die cavity is 4-6mm, the depth is set according to the thickness of the part, and the ejection operation can be completed by setting the stroke of the ejector rod to about 5 mm.

The ejection body further comprises an air cylinder or a hydraulic oil cylinder in transmission connection with the ejector rod.

The ejection body further comprises a gear and a motor, the gear is arranged on an output shaft of the motor, and a rack matched with the gear is arranged at the end part of the ejector rod.

The inner diameter of the ejection channel is matched with the outer diameter of the ejector rod, so that the ejector block can uniformly receive the thrust of the ejector rod.

The bottom of ejector pin can be dismantled along circumference and be equipped with the spacing collar, and the spacing collar can be the rubber circle, can overlap on the ejector pin when needing can.

The bottom of mould can be dismantled and be equipped with a plurality of stoppers, and a plurality of stoppers encircle ejecting passageway and set up and just to the spacing collar, stopper accessible bolt fastening is in the bottom of mould, and stopper and spacing collar can select the installation or install the cooperation jointly according to the thickness alternative of part to the ejector pin alright stop moving when removing a certain position, the displacement of avoiding the rebound is too big, pops out the die cavity with the part once, is unfavorable for the operator in time and takes out the part harmlessly.

The top of ejector pin is equipped with a plurality of ring channels that scribble lubricating oil along circumference, and this lubricating oil can be used to lubricated contact surface between ejector pin and the ejecting passageway when the ejector pin reciprocates for the removal of ejector pin is more smooth and easy, reduces the loss that the friction brought.

The connecting part of the die cavity and the ejection channel is obliquely arranged, the side surface of the ejector block is obliquely arranged, and the ejector rod and the ejector block are prevented from moving downwards when the ejector rod moves downwards under the condition that the ejector rod and the ejector block are not fixedly connected. In operation, the top piece may be added from above the mold cavity.

The ejection device further comprises a base, and the ejection body is arranged on the base.

When a special part mold is designed, a part structure strong position (at least 2 positions) is selected, an ejector block with a profiling surface matched with the outer contour of a part is designed on the upper surface, when a cold press forming mold is closed, the profiling surface participates in part forming, after the part is formed, an ejection assembly is started, the ejector block is ejected upwards through an ejector rod, the profiling surface ejects out of a mold cavity of the part, the stroke of the ejector rod generally only needs to be set to be about 5mm, the part only needs to be pushed away from the surface of the mold cavity, an operator does not need to violently take the part, unnecessary part production scrapping is caused, and the part qualification rate is improved.

The utility model discloses can realize that the atress of multiposition is ejecting, carry out better dispersion with thrust for the part is not fragile, and when the drawing of patterns, utilizes ejecting subassembly rebound to accomplish ejecting, can realize that the bottom of part and die cavity breaks away from completely, makes things convenient for taking out smoothly of part, improves the manual work and gets an efficiency, reduces the disability rate that the part caused because of getting a.

Drawings

FIG. 1 is a schematic view of an ejector (not including a base);

FIG. 2 is a schematic structural diagram of the ejection device;

fig. 3 is a schematic structural diagram of an ejection assembly driven by a gear.

In the figure: 1-a mould; 101-a mold cavity; 102-an ejection channel; 103-a limiting block; 2-ejecting the body; 201-gear; 202-a motor; 3-a top rod; 301-rack; 302-a spacing collar; 303-an annular groove; 4-a top block; 5-base.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Examples

As shown in fig. 1, 2 and 3, a novel cold pressing forming die ejection device comprises a die 1, at least one ejection assembly (two ejection assemblies are arranged in this embodiment) and a base 5, wherein the die 1 is provided with a die cavity 101 for forming a die of a part and at least one ejection channel 102 (two ejection channels are arranged in this embodiment), the depth of the die cavity 101 is 4-6mm, the ejection channel 102 is arranged at the bottom of the die cavity 101 and communicated with the die cavity 101, an ejection block 4 is movably arranged at the joint of the die cavity 101 and the ejection channel 102, the joint of the die cavity 101 and the ejection channel 102 is arranged in an inclined manner, the ejection assembly comprises an ejection body 2 and an ejector rod 3 arranged on the ejection body 2, the ejection body 2 is arranged below the die 1 and on the base 5, the ejector rod 3 is movably arranged in the ejection channel 102, and the inner diameter of the ejection channel 102 is matched with the outer diameter of the ejector rod 3, the bottom of ejector pin 3 can be dismantled along circumference and be equipped with spacing collar 302, and the bottom of mould 1 can be dismantled and be equipped with a plurality of stoppers 103, and a plurality of stoppers 103 encircle ejecting passageway 102 and set up and just to spacing collar 302, and the top of ejector pin 3 is equipped with a plurality of ring channels 303 of scribbling lubricating oil along circumference, and the upper surface of kicking block 4 is equipped with the profile face with the outline looks adaptation of part, and the lower surface of kicking block 4 contacts with ejector pin 3, and the side surface of kicking block 4 is the slope setting.

The ejecting body 2 further comprises an air cylinder or a hydraulic oil cylinder (both the air cylinder and the hydraulic oil cylinder adopt existing equipment and are omitted in the drawing) in transmission connection with the ejector rod 3 as a drive, or as shown in fig. 3, the ejecting body 2 further comprises a gear 201 and a motor 202 as drives, the gear 201 is arranged on an output shaft of the motor 202, and a rack 301 matched with the gear 201 is arranged at the end part of the ejector rod 3.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. A novel ejection device for a cold pressing forming die is characterized by comprising a die (1) and at least one ejection assembly, the die (1) is provided with a die cavity (101) for forming a part and at least one ejection channel (102), the ejection channel (102) is arranged at the bottom of the mold cavity (101) and communicated with the mold cavity (101), the joint of the die cavity (101) and the ejection channel (102) is movably provided with an ejector block (4), the ejection component comprises an ejection body (2) and an ejector rod (3) arranged on the ejection body (2), the ejection body (2) is arranged below the die (1), the ejector rod (3) is movably arranged in the ejection channel (102), the upper surface of the ejector block (4) is provided with a profiling surface matched with the outer contour of the part, and the lower surface of the ejector block (4) is in contact with the ejector rod (3).

2. A new cold press forming die ejection apparatus as claimed in claim 1, wherein the depth of the die cavity (101) is 4-6 mm.

3. The novel cold pressing forming die ejection device as claimed in claim 1, wherein the ejection body (2) further comprises a cylinder or a hydraulic oil cylinder in transmission connection with the ejector rod (3).

4. The novel cold pressing forming die ejection device as claimed in claim 1, wherein the ejection body (2) further comprises a gear (201) and a motor (202), the gear (201) is arranged on an output shaft of the motor (202), and a rack (301) matched with the gear (201) is arranged at the end part of the ejector rod (3).

5. A novel cold press forming die ejection device as claimed in claim 1, wherein the inner diameter of the ejection channel (102) is adapted to the outer diameter of the ejector pin (3).

6. A novel cold pressing forming die ejection device as claimed in claim 5, wherein the bottom of the ejector rod (3) is detachably provided with a limiting ring (302) along the circumferential direction.

7. A novel cold pressing forming die ejection device as claimed in claim 6, wherein a plurality of limiting blocks (103) are detachably arranged at the bottom of the die (1), and the limiting blocks (103) are arranged around the ejection channel (102) and are opposite to the limiting ring (302).

8. A novel cold press forming die ejection device as claimed in claim 1, wherein the top of the ejector rod (3) is provided with a plurality of annular grooves (303) coated with lubricating oil along the circumferential direction.

9. A novel cold press forming die ejection device as claimed in claim 1, wherein the junction of the die cavity (101) and the ejection channel (102) is inclined, and the side surface of the top block (4) is inclined.

10. A novel cold press forming die ejection device as claimed in claim 1, wherein the ejection device further comprises a base (5), and the ejection body (2) is arranged on the base (5).