CN214448218U

CN214448218U - Automobile injection mold with arc core pulling structure

Info

Publication number: CN214448218U
Application number: CN202120296831.3U
Authority: CN
Inventors: 严峰
Original assignee: Hangzhou Suokai Industrial Co ltd
Current assignee: Hangzhou Suokai Industrial Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-10-22
Anticipated expiration: 2031-02-02

Abstract

The utility model discloses an automobile injection mold with a circular arc core pulling structure, which relates to the technical field of injection molds and comprises a bottom plate, wherein a demolding transmission assembly is arranged on the bottom plate; the demolding transmission assembly comprises a C-shaped transmission rod, one end of the C-shaped transmission rod is fixedly provided with a lifting plate, the other end of the C-shaped transmission rod is fixedly provided with an ejection block, and the outer side of the C-shaped transmission rod is fixedly sleeved with a balancing weight; the demolding transmission assembly further comprises a positioning sleeve, the positioning sleeve is arranged in the middle of the outer side of the C-shaped transmission rod in a sliding sleeved mode, and the positioning sleeve is fixedly nested on one side of the top of the bottom plate; the hydraulic lifting device is characterized in that a top plate is arranged right above the bottom plate, hydraulic cylinders are arranged at four corners of the bottom of the top plate, the hydraulic cylinders are fixedly arranged at the top of the bottom plate, and output shafts of the hydraulic cylinders are fixedly connected with the top plate. The utility model discloses when realizing automatic loosing core, can also realize the automatic drawing of patterns of work piece, the in-service use effect is more ideal.

Description

Automobile injection mold with arc core pulling structure

Technical Field

The utility model relates to an injection mold technical field, in particular to take car class injection mold of circular arc structure of loosing core.

Background

The circular arc inner hole is required to be arranged inside some plastic or rubber automobile parts, and when the plastic automobile parts are subjected to injection molding, a circular arc core-pulling mechanism is required to be arranged in a mold, so that the circular arc inner hole is formed in the automobile parts after the automobile parts are molded, and the demolding of the automobile parts is facilitated.

However, the injection mold with the mold opening and closing driving arc core pulling mechanism still has some defects in practical use, and obviously, the utilization degree in the mold opening and closing process is still not ideal enough, automatic demolding of automobile parts cannot be realized while the mold opening and closing driving arc core pulling mechanism is realized, and the practical use effect is not ideal enough.

Therefore, it is necessary to provide an injection mold with an arc core pulling structure for automobiles to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take circular arc structure of loosing core's car class injection mold to solve the current injection mold that has the mechanism of loosing core of mould drive circular arc that opens and shuts that proposes in the above-mentioned background art and still be ideal inadequately to the mould in-process availability that opens and shuts, can't realize the automatic drawing of patterns of automobile parts when realizing the mechanism of loosing core of mould drive circular arc that opens and shuts, the problem of ideal inadequately of in-service use effect.

In order to achieve the above object, the utility model provides a following technical scheme: an automobile injection mold with an arc core pulling structure comprises a bottom plate, wherein a demolding transmission assembly is arranged on the bottom plate;

the demolding transmission assembly comprises a C-shaped transmission rod, one end of the C-shaped transmission rod is fixedly provided with a lifting plate, the other end of the C-shaped transmission rod is fixedly provided with an ejection block, and the outer side of the C-shaped transmission rod is fixedly sleeved with a balancing weight;

the demolding transmission assembly further comprises a positioning sleeve, the positioning sleeve is arranged in the middle of the outer side of the C-shaped transmission rod in a sliding sleeved mode, and the positioning sleeve is fixedly nested on one side of the top of the bottom plate;

the hydraulic lifting device is characterized in that a top plate is arranged right above the bottom plate, hydraulic cylinders are arranged at four corners of the bottom of the top plate, the hydraulic cylinders are fixedly arranged at the top of the bottom plate, and output shafts of the hydraulic cylinders are fixedly connected with the top plate.

Preferably, an upper die is fixedly arranged at the center of the bottom of the top plate, and an upper die cavity is formed in the bottom of the upper die.

Preferably, a lower die is fixedly arranged at the top of the bottom plate, a lower die cavity is formed in the top of the lower die, inner arc-shaped chutes are formed in two side walls of the inner portion of the lower die cavity, arc-shaped sliding blocks are arranged in the inner arc-shaped chutes in a sliding mode, and arc-shaped core rods are fixedly arranged at one ends, close to openings of the lower die cavity, of the arc-shaped sliding blocks.

Preferably, the arc slider openly is fixed and is provided with the connecting rod, the positive both sides of lower mould all are connected with the transmission arm through the pin rotation, the fixed cover of transmission arm connects to be established in the connecting rod outside, outer arc spout has all been seted up to the positive both sides of lower mould, the connecting rod is located outer arc spout inboard.

Preferably, the front surface of the upper die is fixedly provided with an extension plate, and the bottom end of the extension plate is fixedly provided with a pressing block.

Preferably, the four corners of the bottom plate are fixedly provided with supporting legs, and the bottoms of the supporting legs are fixedly provided with a base together.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be provided with drawing of patterns transmission assembly to in the in-process of mould and lower mould separation, the oppression is relieved to the drive arm, when making the arc core bar deviate from by the work piece, the roof at last mould top can jack-up the lifter plate in the process of subsequent rising, and then make the lifter plate through C shape transfer line and ejecting piece with the work piece by ejecting in the die cavity down, compare with the device of the same type among the prior art, when realizing automatic loosing core, can also realize the automatic drawing of patterns of work piece, the actual use effect is more ideal;

2. the utility model discloses a be provided with the balancing weight to in-process at last mould and lower mould compound die, when the roof no longer continues to jack up the lifter plate, the balancing weight can assist ejecting piece to fall, and then makes better the identical holding tank inside die cavity down of ejecting piece, avoids influencing the work piece quality because of ejecting piece is anastomotic badly.

Drawings

Fig. 1 is a schematic overall front view structure diagram of the present invention;

FIG. 2 is a schematic view of the overall front cross-sectional structure of the present invention;

FIG. 3 is a schematic view of the overall demolding structure of the present invention;

FIG. 4 is a schematic front sectional view of the upper mold and the lower mold of the present invention;

fig. 5 is a front view structural schematic diagram of the upper die and the lower die of the present invention.

In the figure: 1. a base plate; 2. a de-molding transmission assembly; 21. a C-shaped transmission rod; 22. a lifting plate; 23. ejecting a block; 24. a balancing weight; 25. positioning the sleeve; 3. a top plate; 4. a hydraulic cylinder; 5. an upper die; 6. an upper mold cavity; 7. a lower die; 8. a lower die cavity; 9. an inner arc-shaped chute; 10. an arc-shaped sliding block; 11. an arc-shaped core rod; 12. a connecting rod; 13. a drive arm; 14. an outer arc chute; 15. an extension plate; 16. briquetting; 17. a support leg; 18. a base.

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 work belong to the protection scope of the present invention.

The utility model provides a take car class injection mold of circular arc structure of loosing core as shown in fig. 1-5, as shown in fig. 1 and fig. 2, including bottom plate 1, set up drawing of patterns drive assembly 2 on the bottom plate 1, set up roof 3 directly over the bottom plate 1, roof 3 bottom four corners all sets up pneumatic cylinder 4, and pneumatic cylinder 4 is fixed to be set up in bottom plate 1 top, and pneumatic cylinder 4's output shaft and roof 3 fixed connection.

Meanwhile, the demolding transmission assembly 2 comprises a C-shaped transmission rod 21, one end of the C-shaped transmission rod 21 is fixedly provided with a lifting plate 22, the other end of the C-shaped transmission rod 21 is fixedly provided with an ejection block 23, and a counterweight block 24 is fixedly sleeved on the outer side of the C-shaped transmission rod 21, so that when the top plate 3 does not eject the lifting plate 22 any more in the mold closing process, the counterweight block 24 can assist the ejection block 23 to fall down, and the influence on the workpiece quality caused by poor fit of the ejection block 23 is avoided.

More specifically, the demolding transmission assembly 2 further comprises a positioning sleeve 25, the positioning sleeve 25 is slidably sleeved in the middle of the outer side of the C-shaped transmission rod 21, and the positioning sleeve 25 is fixedly nested in one side of the top of the bottom plate 1, so that the positioning sleeve 25 can guide and limit the C-shaped transmission rod 21 in the lifting process of the C-shaped transmission rod 21.

It should be further noted that, four corners of the bottom plate 1 are all fixedly provided with the supporting legs 17, and the bottoms of the four supporting legs 17 are jointly fixedly provided with the base 18, so that the base 18 can be used for supporting the device.

As shown in fig. 4 and 5, referring to fig. 3, an upper die 5 is fixedly disposed at the center of the bottom of the top plate 3, an upper die cavity 6 is disposed at the bottom of the upper die 5, an extension plate 15 is fixedly disposed on the front surface of the upper die 5, and a pressing block 16 is fixedly disposed at the bottom end of the extension plate 15.

More specifically, a lower die 7 is fixedly arranged at the top of the bottom plate 1, a lower die cavity 8 is arranged at the top of the lower die 7, inner arc chutes 9 are respectively arranged on two side walls inside the lower die cavity 8, arc sliders 10 are arranged inside the inner arc chutes 9 in a sliding manner, an arc core bar 11 is fixedly arranged at one end of each arc slider 10 close to the opening of the lower die cavity 8, a connecting rod 12 is fixedly arranged on the front side of each arc slider 10, transmission arms 13 are respectively and rotatably connected to two front sides of the lower die 7 through pins, the transmission arms 13 are fixedly sleeved outside the connecting rods 12, outer arc chutes 14 are respectively arranged on two front sides of the lower die 7, the connecting rods 12 are positioned inside the outer arc chutes 14, so that when the upper die 5 drives a pressing block 16 to ascend through an extension plate 15, the pressing block 16 does not press down the end part of the transmission arms 13 any more, at the moment, under the influence of the self weight of the arc sliders 10, the arc sliders 10 slide downwards along the inner arc chutes 9, and then the arc core bar 11 is separated from the workpiece, and simultaneously, the arc sliding block 10 drives the transmission arm 13 to rotate through the connecting rod 12 in the process.

The utility model discloses the theory of operation:

when the mould is actually used, the upper mould 5 and the lower mould 7 are in a mould closing state, a technician can inject raw materials into a mould cavity formed by combining the upper mould cavity 6 and the lower mould cavity 8 through a raw material injection hole on the upper mould 5, and after the raw materials are cooled and formed, the technician can enable the hydraulic cylinder 4 to drive an output shaft of the hydraulic cylinder 4 to extend out, so that the output shaft of the hydraulic cylinder 4 drives the top plate 3 to ascend;

in the process that the top plate 3 rises, the top plate 3 drives the upper die 5 to rise, so that demolding is realized, meanwhile, when the upper die 5 rises, the upper die 5 drives the pressing block 16 to rise through the extension plate 15, so that the pressing block 16 does not press the end part of the transmission arm 13 any more, at the moment, under the influence of the self weight of the arc-shaped sliding block 10, the arc-shaped sliding block 10 slides downwards along the inner arc-shaped sliding groove 9, and the arc-shaped core rod 11 is separated from a workpiece;

meanwhile, as the top plate 3 continues to rise, the top plate 3 jacks up the lifting plate 22, so that the lifting plate 22 drives the ejection block 23 to move upwards through the C-shaped transmission rod 21, the workpiece positioned in the lower die cavity 8 is ejected out from the lower die cavity 8, and at the moment, a technician directly takes down the workpiece.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a take car class injection mold of circular arc structure of loosing core which characterized in that: the demolding device comprises a bottom plate (1), wherein a demolding transmission assembly (2) is arranged on the bottom plate (1);

the demolding transmission assembly (2) comprises a C-shaped transmission rod (21), one end of the C-shaped transmission rod (21) is fixedly provided with a lifting plate (22), the other end of the C-shaped transmission rod (21) is fixedly provided with an ejection block (23), and the outer side of the C-shaped transmission rod (21) is fixedly sleeved with a balancing weight (24);

the demolding transmission assembly (2) further comprises a positioning sleeve (25), the positioning sleeve (25) is arranged in the middle of the outer side of the C-shaped transmission rod (21) in a sliding sleeved mode, and the positioning sleeve (25) is fixedly nested on one side of the top of the bottom plate (1);

the hydraulic support is characterized in that a top plate (3) is arranged right above the bottom plate (1), hydraulic cylinders (4) are arranged at four corners of the bottom of the top plate (3), the hydraulic cylinders (4) are fixedly arranged at the top of the bottom plate (1), and output shafts of the hydraulic cylinders (4) are fixedly connected with the top plate (3).

2. The injection mold with the arc core pulling structure for the automobile according to claim 1, wherein the injection mold comprises: an upper die (5) is fixedly arranged at the center of the bottom of the top plate (3), and an upper die cavity (6) is formed in the bottom of the upper die (5).

3. The injection mold with the arc core pulling structure for the automobile according to claim 1, wherein the injection mold comprises: the bottom plate (1) top is fixed and is provided with lower mould (7), lower die cavity (8) have been seted up at lower mould (7) top, interior arc spout (9) have all been seted up on the inside both sides wall of lower die cavity (8), interior arc spout (9) inside slides and is provided with arc slider (10), arc slider (10) are close to the fixed arc core bar (11) that is provided with of one end of lower die cavity (8) opening part.

4. The injection mold with the arc core pulling structure for the automobile according to claim 3, wherein the injection mold comprises: arc slider (10) openly fixed connecting rod (12) of being provided with, lower mould (7) openly both sides all are connected with driving arm (13) through the pin rotation, driving arm (13) fixed cup joint sets up in the connecting rod (12) outside, outer arc spout (14) have all been seted up to lower mould (7) openly both sides, connecting rod (12) are located outer arc spout (14) inboardly.

5. The injection mold with the arc core pulling structure for the automobile according to claim 2, characterized in that: the front surface of the upper die (5) is fixedly provided with an extension plate (15), and the bottom end of the extension plate (15) is fixedly provided with a pressing block (16).

6. The injection mold with the arc core pulling structure for the automobile according to claim 1, wherein the injection mold comprises: the bottom plate (1) bottom four corners all is fixed and is provided with landing leg (17), four landing leg (17) bottom is fixed jointly and is provided with base (18).