CN216609913U

CN216609913U - Stable mould thimble structure of preventing fracture deformation

Info

Publication number: CN216609913U
Application number: CN202123180559.1U
Authority: CN
Inventors: 黄纯芝; 俞萌萌; 王军; 方刚
Original assignee: Changzhou Conceptech Moulding Technology Co ltd
Current assignee: Changzhou Conceptech Moulding Technology Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-05-27
Anticipated expiration: 2031-12-17

Abstract

The utility model provides a stable mould thimble structure capable of preventing fracture and deformation, and relates to the technical field of moulds. According to the ejector pin, when the ejector pin body drives the friction pad to push the raw material, outside air enters the inside of the air inlet hole through the through hole, then the air enters the space between the raw material and the forming groove along with the guide of the air inlet hole, the first air outlet groove and the second air outlet groove, the raw material and the forming groove are prevented from generating a vacuum state during demoulding, the ejector pin body can conveniently demould the raw material, meanwhile, the pressure applied to the ejector pin body is reduced, the situations of deformation, fracture and the like are avoided, and the ejector pin body is better protected.

Description

Stable mould thimble structure of preventing fracture deformation

Technical Field

The utility model relates to the technical field of dies, in particular to a stable anti-fracture deformation die ejector pin structure.

Background

The mould thimble is after the inside injection moulding of mould accomplishes, carry out the important instrument of drawing of patterns to the product, be a mould spring thimble structure that application number is CN202022427754.9 proposed, including the bed die, lower bolster and thimble board, two circular through-holes have been seted up to the upper surface of thimble board, and the pore wall swing joint of circular through-hole has the guide post, the upper surface of guide post and the lower fixed surface of bed die are connected, reset spring has been cup jointed in the outer wall activity of guide post, two connect the via hole have been seted up to the outer wall of thimble board, connect the pore wall swing joint of through-hole has the thimble, the screw hole has been seted up to the lower surface of thimble, connect the bottom outer wall swing joint of through-hole has hexagon socket head cap screw, hexagon socket head cap screw's outer wall and thimble bottom screw hole threaded connection. According to the technical scheme, the universality of the structure of the spring ejector pin of the mold is improved, the convenience of mold manufacturing is improved, the cost of mold manufacturing is reduced, the baffle can prevent the bottom of the ejector pin from shaking and being extruded and bent, and the protection capability of the ejector pin is improved.

However, in the above technical scheme, when the thimble released the shaping inslot portion to the raw materials, be in sealed laminating state between raw materials and the shaping groove for along with the thimble to the promotion of raw materials, lead to producing the vacuum state between raw materials and the shaping groove, can bring huge pressure to the thimble, make the thimble very easy emergence warp the condition such as fracture.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a stable mould thimble structure capable of preventing fracture and deformation, and the thimble structure can effectively solve the problems in the background technology.

In order to realize the purpose, the utility model adopts the technical scheme that:

stable mould thimble structure of preventing fracture deformation, including mould box and ejection of compact complementary unit, the inside lower extreme of mould box is equipped with the movable groove, the support frame is installed to the lower extreme of mould box, install ejection of compact complementary unit between movable groove and the support frame, the upper end of mould box is equipped with the shaping groove, the inside lower surface one end of movable groove runs through and is equipped with the fresh air inlet, the inside of fresh air inlet is equipped with the filter screen, ejection of compact complementary unit is including a plurality of thimble bodies, every the upper end difference movable mounting of thimble body is in the inside of guiding groove, every the inside upper end of movable groove is located respectively to the guiding groove, every the inside at the spread groove is installed respectively to the lower extreme of thimble body, every the surface of backup pad is located respectively to the spread groove.

Preferably, the upper end of each guide groove is respectively provided with a placing groove in a penetrating manner, each placing groove is respectively connected with the forming groove, and a friction pad is movably arranged in each placing groove.

Preferably, the upper end of each thimble body is movably mounted inside the friction pad, an air inlet hole is formed in the middle of the inside of each thimble body in a penetrating mode, and a plurality of first air outlet grooves are formed in one end, located on the friction pad, of each thimble body in a penetrating mode by taking the air inlet hole as the center.

Preferably, the outer side of the lower end of each friction pad is provided with a second air outlet groove in a penetrating mode, each second air outlet groove is parallel to the corresponding first air outlet groove, and the outer side of the lower end of each ejector pin body is fixedly provided with a plurality of reinforcing plates.

Preferably, the supporting plate is movably arranged in the movable groove, a through hole is respectively arranged in the middle of the lower surface of the inner part of each connecting groove in a penetrating mode, and each through hole is respectively parallel to the air inlet hole.

Preferably, the two sides of the supporting plate are respectively provided with a sliding block, one end, away from each other, of each sliding block is movably arranged in each sliding groove, each sliding groove is respectively arranged on two sides of the inner portion of each movable groove, and each sliding groove is fixedly provided with a guide column.

Preferably, the outer side of the rod body of each guide column is movably provided with a sliding block in a penetrating mode, two ends of the lower surface of the support plate are fixedly provided with push rods respectively, the lower end of each push rod movably penetrates through a movable groove and is connected with the output end of a hydraulic cylinder, and each hydraulic cylinder is arranged on the surface of the support frame respectively.

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

(1) according to the ejector pin, when the ejector pin body drives the friction pad to push the raw material, external air enters the inside of the air inlet hole through the through hole, then the air enters the space between the raw material and the forming groove along with the guiding of the air inlet hole, the first air outlet groove and the second air outlet groove, the raw material and the forming groove are prevented from generating a vacuum state during demolding work, the ejector pin body can conveniently perform demolding work on the raw material, meanwhile, the pressure on the ejector pin body is reduced, the situations of deformation, fracture and the like are avoided, and the ejector pin body is better protected.

(2) In the moving process of the supporting plate, the supporting plate can move up and down more stably through the matching of the sliding block and the guide column, so that the supporting plate drives the ejector pin body and the friction pad to perform demoulding operation on the raw material, and the friction pad is used for increasing the contact surface between the ejector pin body and the raw material, so that the ejector pin body can perform demoulding operation more conveniently.

Drawings

FIG. 1 is a schematic view of the overall structure of the ejector pin structure of the stable anti-fracture deformation mold of the utility model;

FIG. 2 is a schematic diagram of a front view of a thimble structure of the stable anti-fracture deformation mold of the present invention;

FIG. 3 is a schematic top view of the thimble structure of the stable anti-fracture deformation mold of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3 of the ejector pin structure of the stable anti-fracture deformation mold of the present invention;

FIG. 5 is a schematic cross-sectional view taken along line B-B in FIG. 2 of the ejector pin structure of the stable anti-fracture deformation mold of the present invention;

FIG. 6 is a schematic cross-sectional view taken at C-C of the ejector pin structure of the stable anti-fracture deformation mold of the present invention shown in FIG. 2.

In the figure: 1. a mold box body; 2. forming a groove; 3. a support frame; 4. a discharge auxiliary mechanism; 401. a placement groove; 402. a guide groove; 403. a friction pad; 404. a thimble body; 405. an air inlet; 406. a first air outlet groove; 407. a second air outlet groove; 408. a reinforcing plate; 409. a support plate; 410. connecting grooves; 411. a through hole; 412. a chute; 413. a slider; 414. a guide post; 415. a push rod; 416. a hydraulic cylinder; 5. a movable groove; 6. an air inlet hole; 7. and (5) filtering by using a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1-6, a stable die thimble structure for preventing fracture and deformation includes a die box body 1 and an auxiliary discharging mechanism 4, a movable slot 5 is disposed at the lower end of the interior of the die box body 1, a supporting frame 3 is mounted at the lower end of the die box body 1, an auxiliary discharging mechanism 4 is mounted between the movable slot 5 and the supporting frame 3, a forming slot 2 is disposed at the upper end of the die box body 1, an air inlet 6 is disposed at one end of the lower surface of the interior of the movable slot 5, a filter screen 7 is disposed in the air inlet 6, the auxiliary discharging mechanism 4 includes a plurality of thimble bodies 404, the upper end of each thimble body 404 is movably mounted in a guiding slot 402, the upper end of each guiding slot 402 is disposed in the interior of the movable slot 5, the lower end of each thimble body 404 is mounted in a connecting slot 410, and each connecting slot 410 is disposed on the surface of a supporting plate 409.

When the friction pad type guide groove is specifically arranged, a placing groove 401 penetrates through the upper end of each guide groove 402, each placing groove 401 is connected with the forming groove 2, and a friction pad 403 is movably mounted inside each placing groove 401. The friction pad 403 is used for strengthening the contact surface between the thimble body 404 and the raw material, so that the thimble body 404 can eject the raw material more stably, and is more stable and convenient.

When the ejector pin structure is specifically arranged, the upper end of each ejector pin body 404 is movably mounted inside the friction pad 403, an air inlet hole 405 penetrates through the middle inside each ejector pin body 404, and one end, located on the friction pad 403, of each ejector pin body 404 penetrates through a plurality of first air outlet grooves 406 by taking the air inlet hole 405 as a center. When the ejector pin body 404 ejects the raw material through the friction pad 403, because the raw material and the molding groove 2 are in a close-fitting state, when the raw material is ejected, a vacuum state can be formed between the raw material and the molding groove 2, then the external air is introduced between the raw material and the molding groove 2 through the matching between the air inlet 405 and the first air outlet groove 406 and the second air outlet groove 407, so that the vacuum state is avoided, the ejector pin body 404 can eject the raw material more conveniently, the pressure on the ejector pin body 404 is reduced, the problems of breakage, deformation and the like of the ejector pin body 404 are avoided, and the ejector pin body 404 is better protected.

When the ejector pin is specifically arranged, a second air outlet groove 407 is respectively arranged on the outer side of the lower end of each friction pad 403 in a penetrating manner, each second air outlet groove 407 is relatively parallel to the first air outlet groove 406, and a plurality of reinforcing plates 408 are respectively fixedly mounted on the outer side of the lower end of each ejector pin body 404. The lower side of the reinforcing plate 408 is attached to the surface of the supporting plate 409, so as to increase the pressure applied to the thimble body 404, protect the lower end of the thimble body 404, and avoid the problems that the lower end of the thimble body 404 is broken and deformed when the thimble body 404 pushes out raw materials.

In the specific arrangement, the supporting plate 409 is movably installed inside the movable slot 5, a through hole 411 is respectively arranged in the middle of the lower surface of the inside of each connecting slot 410 in a penetrating manner, and each through hole 411 is respectively parallel to the air inlet hole 405. The air inlet hole 405 conveys the outside air to the space between the raw material and the forming groove 2 through the through hole 411, so that the vacuum environment between the raw material and the forming groove 2 is avoided, and the pressure applied to the thimble body is increased.

When the installation is carried out, the sliding blocks 413 are respectively installed on two sides of the supporting plate 409, one end, away from each other, of each sliding block 413 is movably installed inside the sliding groove 412, each sliding groove 412 is respectively arranged on two sides of the inside of the movable groove 5, and the guiding columns 414 are respectively and fixedly installed inside each sliding groove 412. The supporting plate 409 moves up and down according to the guiding column 414 through the sliding block 413, so that the thimble body 404 is more stable in the process of blanking raw materials.

When the device is specifically arranged, a sliding block 413 is movably arranged on the outer side of the rod body of each guide column 414 in a penetrating manner, push rods 415 are fixedly arranged at two ends of the lower surface of the support plate 409 respectively, the lower end of each push rod 415 is movably arranged in a penetrating manner and connected with the output end of a hydraulic cylinder 416, and each hydraulic cylinder 416 is arranged on the surface of the support frame 3. Force is applied to the supporting plate 409 and the thimble body 404 through the plurality of cutting hydraulic cylinders 416 and the push rod 415, so that the supporting plate 409 and the thimble body 404 can demold the raw materials more conveniently.

This stabilize theory of operation of preventing fracture deformation mould thimble structure:

during the use, at first after the raw materials shaping is accomplished, the staff starts pneumatic cylinder 416, let pneumatic cylinder 416 drive push rod 415 through the output and carry out the rebound, make push rod 415 promote the backup pad 409 upwards, when the backup pad 409 removes simultaneously, the backup pad 409 drives the slider 413 and slides in the inside of spout 412, make the slider 413 guide the backup pad 409 according to guide post 414, let the more accurate stable thimble body 404 that drives of backup pad 409 remove, then when thimble body 404 drives friction pad 403 and promotes the raw materials, outside air enters into between raw materials and shaping groove 2 through inlet port 405 and a gas outlet groove 406 and No. two gas outlet grooves 407, avoid producing the vacuum environment between raw materials and the shaping groove 2, at last along with the raw materials leaves the inside of shaping groove 2 and accomplish drawing of patterns work.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Stabilize deformation mould thimble structure of preventing splitting, including mould box (1) and ejection of compact complementary unit (4), the inside lower extreme of mould box (1) is equipped with movable groove (5), support frame (3) are installed to the lower extreme of mould box (1), install ejection of compact complementary unit (4), its characterized in that between movable groove (5) and support frame (3): the upper end of mould box (1) is equipped with shaping groove (2), the inside lower surface one end of activity groove (5) is run through and is equipped with fresh air inlet (6), the inside of fresh air inlet (6) is equipped with filter screen (7), ejection of compact complementary unit (4) are including a plurality of thimble bodies (404), every the upper end difference movable mounting of thimble body (404) is in the inside of guiding groove (402), every the inside upper end of activity groove (5), every are located respectively in guiding groove (402) the inside at spread groove (410), every is installed respectively to the lower extreme of thimble body (404) the surface of backup pad (409) is located respectively in spread groove (410).

2. The stable die ejector pin structure preventing breakage and deformation of claim 1, wherein: the upper end of each guide groove (402) is respectively provided with a placing groove (401) in a penetrating mode, each placing groove (401) is respectively connected with the forming groove (2) in an interconnecting mode, and a friction pad (403) is movably mounted inside each placing groove (401).

3. The stable die ejector pin structure preventing breakage and deformation of claim 2, wherein: the upper end of each thimble body (404) is movably mounted in a friction pad (403), an air inlet hole (405) is formed in the middle of the interior of each thimble body (404) in a penetrating mode, and a plurality of first air outlet grooves (406) are formed in one end, located on the friction pad (403), of each thimble body (404) in a penetrating mode by taking the air inlet hole (405) as the center.

4. The stable die ejector pin structure preventing breakage and deformation of claim 3, wherein: the outer side of the lower end of each friction pad (403) is provided with a second air outlet groove (407) in a penetrating mode, each second air outlet groove (407) is parallel to the first air outlet groove (406) relatively, and the outer side of the lower end of each ejector pin body (404) is fixedly provided with a plurality of reinforcing plates (408) respectively.

5. The stable die ejector pin structure preventing breakage and deformation of claim 4, wherein: the supporting plate (409) is movably arranged in the movable groove (5), a through hole (411) penetrates through the middle of the lower surface of the inner part of each connecting groove (410) respectively, and each through hole (411) is parallel to the air inlet hole (405) respectively.

6. The stable die ejector pin structure preventing breakage and deformation of claim 5, wherein: the two sides of the supporting plate (409) are respectively provided with a sliding block (413), one end, away from each other, of each sliding block (413) is movably arranged in a sliding groove (412), each sliding groove (412) is respectively arranged on two sides of the inner portion of the movable groove (5), and each sliding groove (412) is fixedly provided with a guide column (414) in the inner portion.

7. The stable die ejector pin structure preventing breakage and deformation of claim 6, wherein: the outer side of the rod body of each guide column (414) is movably provided with a sliding block (413) in a penetrating mode, two ends of the lower surface of the supporting plate (409) are fixedly provided with push rods (415) respectively, the lower end of each push rod (415) movably penetrates through a movable groove (5) and is connected with the output end of a hydraulic cylinder (416) in an interconnecting mode, and each hydraulic cylinder (416) is installed on the surface of the supporting frame (3) respectively.