CN218462844U

CN218462844U - Front mold taking injection mold for automobile bumper

Info

Publication number: CN218462844U
Application number: CN202222603966.7U
Authority: CN
Inventors: 杜光辉
Original assignee: Zhejiang Wohui Molding Technology Co ltd
Current assignee: Zhejiang Wohui Molding Technology Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-02-10
Anticipated expiration: 2032-09-29

Abstract

The utility model provides an injection mold is got to front mould for car bumper, be provided with the front mould of die cavity including the rear end, the front end is provided with the back mould of core, the core includes main shaping piece, vice shaping piece and inferior shaping piece, main shaping piece and back mould integrated into one piece, the standing groove has been seted up to the front end of main shaping piece, be provided with the slope guide face in the standing groove, the front end of slope guide face extends to back mould center one side, vice shaping piece sets up in the standing groove, be provided with driving piece one on the back mould, vice shaping piece is connected to the output of driving piece one, vice shaping piece is kept away from slope guide face department and has been seted up and accomodate the groove, it is provided with supplementary guide face in accomodating the groove, inferior shaping piece sets up in accomodating the groove, be provided with driving piece two on the back mould, inferior shaping piece two's output is connected. Be used for producing the car bumper through above-mentioned injection mold, have the fillet with the car bumper and connect the advantage that the curb plate is difficult for being pulled bad in the die sinking in-process.

Description

Front mold taking injection mold for automobile bumper

Technical Field

The utility model relates to an injection mold, in particular to a front mould gets an injection mold for car bumper.

Background

Currently, as shown in fig. 1, a conventional bumper for an automobile includes a body 25, a fillet 26 disposed at an edge of the body 25, and a connecting side plate 27 disposed at an edge of the fillet 26, where a cavity is formed between the body 25 and the connecting side plate 27.

In the process of injection molding production of the automobile bumper by using the injection mold, for improving the surface finish of the automobile bumper and reducing subsequent processing of the surface, the parting surface is required to be arranged at the junction of the fillet and the connecting side plate. However, such an arrangement may result in a back-off being formed in the rear mold, which may pull the rounded corners of the bumper and the connecting side plates apart during mold opening.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a front mould takes out a piece injection mold for car bumper, it has the fillet with car bumper and connects the advantage that the curb plate is difficult for being damaged by the drawing in the die sinking process.

In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides an injection mold is got to front mould for car bumper, includes that the rear end is provided with the front mould of die cavity, the rear mould that the front end was provided with the core, when the front mould with when the rear mould is buckled, the die cavity with be formed with the die cavity that is used for the shaping car bumper between the core, the core includes main shaping block, vice shaping block and secondary shaping block, main shaping block with rear mould integrated into one piece, the standing groove has been seted up to the front end of main shaping block, be provided with the slope guide face in the standing groove, the front end of slope guide face extends to rear mould center one side, vice shaping block sets up in the standing groove, be provided with driving piece one on the rear mould, the output of driving piece one is connected vice shaping block for drive the vice shaping block is followed the slope guide face slides, vice shaping block keeps away from slope guide face department and has seted up and accomodate the groove, be provided with supplementary guide face in accomodating the groove, the secondary shaping block sets up in accomodate the groove, be provided with two driving pieces on the rear mould, the output of driving piece is connected the secondary shaping block, is followed supplementary guide face that slides.

Through above-mentioned technical scheme, when the cooling shaping of car bumper in the die cavity, the control front mould is kept away from the back mould gradually for car bumper and main shaping piece separation. At the same time, the sub-molding block is driven by the driving member to move along the inclined guide surface toward the front mold side, so that the sub-molding block can be gradually separated from the bumper while moving with the front mold. Meanwhile, the secondary forming block is driven to move towards one side of the front die along the auxiliary guide surface through the driving piece II, so that the secondary forming block can always abut against the automobile bumper. When the secondary forming block moves out of the concave cavity, the first driving piece and the second driving piece are controlled to stop, so that the secondary forming block and the secondary forming block are separated from the automobile bumper. And when the secondary forming block and the secondary forming block are completely separated from the automobile bumper, taking the automobile bumper out of the cavity by using a tool such as a manipulator and the like. Be used for producing the car bumper through above-mentioned injection mold, have the fillet with the car bumper and connect the advantage that the curb plate is difficult for being pulled bad in the die sinking in-process.

Preferably, an inclined guide hole is formed in the inner groove wall of the rear end of the placing groove, the inclined guide hole is parallel to the inclined guide surface, the first driving piece comprises a first driving rod, the front end of the first driving rod is connected to the secondary forming block, and the rear end of the first driving rod protrudes out of the inclined guide hole to be connected with an external driving source.

Through the technical scheme, when the auxiliary forming block is used, the driving rod I is controlled by the external driving source to slide in the inclined guide hole, and then the auxiliary forming block is controlled to slide. The inner wall of the inclined guide hole is abutted against the outer wall of the first driving rod and used for guiding and limiting the sliding of the first driving rod.

Preferably, an auxiliary guide hole is formed in the inner groove wall of the rear end of the accommodating groove, the auxiliary guide hole is parallel to the auxiliary guide surface, the driving member ii comprises a driving rod ii, the front end of the driving rod ii is connected to the secondary forming block, and the rear end of the driving rod ii protrudes out of the auxiliary guide hole to be connected with an external driving source.

Through the technical scheme, when the auxiliary guide hole is used, the driving rod II is controlled by the external driving source to slide in the auxiliary guide hole, and then the secondary forming block is controlled to slide. The inner wall of the auxiliary guide hole is abutted against the outer wall of the second driving rod and used for guiding and limiting the sliding of the second driving rod.

Preferably, the rear end of the rear die is provided with an ejector plate, the rear end of the first driving rod is connected with the ejector plate in a sliding mode, and the rear end of the second driving rod is fixedly connected with the ejector plate.

Through the technical scheme, the ejector plate is controlled to move through the external driving source, so that the auxiliary forming block and the secondary forming block can be controlled to slide at the same time.

Preferably, the front end of the ejector plate is provided with a sliding seat, the front end of the sliding seat is provided with a T-shaped sliding groove, the front end of the T-shaped sliding groove extends towards one side far away from the center of the rear mold, the rear end of the first driving rod is provided with a T-shaped sliding block, and the T-shaped sliding block is connected to the T-shaped sliding groove in a sliding mode.

Through the technical scheme, the T-shaped sliding groove and the T-shaped sliding block are matched to limit and guide the rear end of the first driving rod.

Preferably, a mounting groove is formed in the rear end of the auxiliary forming block, the front end of the first driving rod is inserted into the mounting groove, a counter bore is formed in the side wall of the auxiliary forming block and communicated with the mounting groove, a connecting screw is arranged in the counter bore, and the connecting screw is in threaded connection with the first driving rod.

Through the technical scheme, the connecting screw is used for fixing the first driving rod and the auxiliary forming block, so that the disassembly and assembly process of the first driving rod becomes more convenient and faster.

Preferably, an air channel is formed in the inner groove wall of the mounting groove, an air vent is formed in the front end of the secondary forming block, and the air vent is communicated with the air channel.

Through above-mentioned technical scheme, when the vice shaping piece of a control through driving piece moves along the inclined guide face along the front mould, the outside air can enter into between vice shaping piece and the car bumper via air channel and air vent for vice shaping piece can comparatively smoothly with car bumper phase separation.

Preferably, the vent hole comprises a material blocking section arranged at the front end of the auxiliary forming block and a connecting section arranged at the rear end of the auxiliary forming block, the material blocking section is communicated with the connecting section, and the inner diameter of the material blocking section is gradually reduced on one side far away from the connecting section.

Through above-mentioned technical scheme, the internal diameter of hindering the material section reduces gradually to one side of keeping away from the linkage segment, and the melting plastics in the die cavity is difficult for entering into hindering the material section because of tension like this.

Preferably, a groove is formed in the end part, far away from the connecting section, of the material blocking section, and a material blocking net is embedded in the groove.

Through above-mentioned technical scheme, the material net that hinders that sets up in the recess can block molten plastic, makes it be difficult for entering into in the air vent.

Preferably, a control air valve is arranged at the end part of the connecting section, which is far away from the material blocking section.

Through the technical scheme, when the automobile bumper is subjected to injection molding production, the control air valve is closed, so that air is not easy to enter a mold cavity. When the injection molded automobile bumper needs to be taken out, the control air valve is opened, so that air can enter the mold cavity to assist in demolding the automobile bumper.

Drawings

FIG. 1 is a schematic view of a bumper of an automobile;

FIG. 2 is a schematic structural diagram of an embodiment;

FIG. 3 is a first schematic cross-sectional view of an embodiment;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is an enlarged view of the portion B of FIG. 4;

FIG. 6 is a second cross-sectional view of the embodiment;

fig. 7 is an enlarged view of a portion C of fig. 6.

Reference numerals: 1. a cavity; 2. a front mold; 3. a core; 31. a main forming block; 32. a secondary forming block; 33. secondary forming blocks; 4. a rear mold; 5. a placement groove; 6. an inclined guide surface; 7. a first driving part; 8. a storage groove; 9. an auxiliary guide surface; 10. a driving part II; 11. an inclined guide hole; 12. auxiliary guide holes; 13. an ejector plate; 14. a sliding seat; 15. a T-shaped chute; 16. a T-shaped slider; 17. mounting grooves; 18. a countersunk hole; 19. a connecting screw; 20. a vent groove; 21. a vent hole; 211. a material blocking section; 212. a connection section; 22. a groove; 23. a material blocking net; 24. a control air valve; 25. a body; 26. round corners; 27. the side plates are connected.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so as to make the technical solutions of the present invention easier to understand and grasp.

A front mold taking injection mold for an automobile bumper comprises a front mold 2 with a cavity 1 at the rear end and a rear mold 4 with a core 3 at the front end, wherein a mold cavity for molding the automobile bumper is formed between the cavity 1 and the core 3 when the front mold 2 is buckled with the rear mold 4, as shown in figures 2 to 7. In use, molten plastic is injected into the mold cavity to fill the mold cavity. And after the molten plastic in the mold cavity is cooled, the automobile bumper is molded.

The core 3 includes a main molding block 31, a sub-molding block 32, and a sub-molding block 33.

The main forming block 31 and the rear die 4 are integrally formed, a placing groove 5 is formed in the front end of the main forming block 31, an inclined guide surface 6 is arranged at the position, close to the center of the rear face, of the placing groove 5, and the front end of the inclined guide surface 6 extends to one side of the center of the rear die 4.

The sub-forming block 32 is arranged in the placing groove 5, and the outer wall of the sub-forming block 32 is attached to the inner wall of the placing groove 5. The rear die 4 is provided with a first driving piece 7, and the output end of the first driving piece 7 is connected with the secondary forming block 32 to drive the secondary forming block 32 to slide along the inclined guide surface 6.

An inclined guide hole 11 is formed in the rear end inner groove wall of the placing groove 5, and the inclined guide hole 11 is parallel to the inclined guide surface 6. The first driving part 7 comprises a first driving rod, the front end of the first driving rod is connected to the secondary forming block 32, and the rear end of the first driving rod protrudes out of the inclined guide hole 11 to be connected with an external driving source.

The secondary forming block 32 is provided with a receiving groove 8 far away from the inclined guide surface 6, and the receiving groove 8 is provided with an auxiliary guide surface 9 near the center of the rear mold 4. The secondary forming block 33 is arranged in the accommodating groove 8, the rear die 4 is provided with a second driving piece 10, and the output end of the second driving piece 10 is connected with the secondary forming block 33 and used for driving the secondary forming block 33 to slide along the auxiliary guide surface 9.

An auxiliary guide hole 12 is formed in the rear end inner wall of the receiving groove 8, and the auxiliary guide hole 12 is parallel to the auxiliary guide surface 9. The second driving element 10 includes a second driving rod, a front end of the second driving rod is connected to the secondary forming block 33, and a rear end of the second driving rod protrudes out of the auxiliary guide hole 12 to be connected to an external driving source.

An ejector plate 13 is arranged at the rear end of the rear die 4, the rear end of the first driving rod is connected to the ejector plate 13 in a sliding mode, and the rear end of the second driving rod is fixedly connected to the ejector plate 13.

The front end of the ejector plate 13 is provided with a sliding seat 14, the front end of the sliding seat 14 is provided with a T-shaped sliding chute 15, and the front end of the T-shaped sliding chute 15 extends towards one side far away from the center of the rear mold 4. The rear end of the first driving rod is provided with a T-shaped sliding block 16, and the T-shaped sliding block 16 is connected with the T-shaped sliding groove 15 in a sliding mode.

The mounting groove 17 has been seted up to vice shaping piece 32's rear end, and the front end of actuating lever one inserts mounting groove 17, and counter bore 18 has been seted up to vice shaping piece 32's lateral wall department, and counter bore 18 communicates in mounting groove 17, is provided with connecting screw 19 in the counter bore 18, and connecting screw 19 threaded connection is in actuating lever one.

The inner groove wall of the mounting groove 17 is provided with a vent groove 20, the front end of the secondary forming block 32 is provided with a vent hole 21, and the vent hole 21 is communicated with the vent groove 20. The vent 21 includes that setting up hinders material section 211, the linkage segment 212 of setting in the secondary forming piece 32 rear end at the setting in the front end of secondary forming piece 32, hinders material section 211 and linkage segment 212 intercommunication, hinders the internal diameter of material section 211 and diminishes to one side of keeping away from linkage segment 212 gradually. The end part of the material blocking section 211 far away from the connecting section 212 is provided with a groove 22, and a material blocking net 23 is embedded in the groove 22. The end of the connecting section 212 remote from the blocking section 211 is provided with a control air valve 24.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. The utility model provides a car is front mould injection mold of getting for bumper, includes that the rear end is provided with front mould (2) of die cavity (1), rear mould (4) that the front end was provided with core (3), when front mould (2) with rear mould (4) lock is closed, die cavity (1) with be formed with the die cavity that is used for the shaping car bumper between core (3), characterized by: the mold core (3) comprises a main molding block (31), an auxiliary molding block (32) and a secondary molding block (33), the main molding block (31) and the rear mold (4) are integrally molded, a placing groove (5) is formed in the front end of the main molding block (31), an inclined guide surface (6) is arranged in the placing groove (5), the front end of the inclined guide surface (6) extends towards the center side of the rear mold (4), the auxiliary molding block (32) is arranged in the placing groove (5), a first driving part (7) is arranged on the rear mold (4), the output end of the first driving part (7) is connected with the auxiliary molding block (32) and used for driving the auxiliary molding block (32) to slide along the inclined guide surface (6), an accommodating groove (8) is formed in the position, away from the inclined guide surface (6), of the auxiliary molding block (32), an auxiliary molding block (9) is arranged in the accommodating groove (8), a second driving part (10) is arranged on the rear mold (4), and the auxiliary molding block (33) is connected with the second driving part (10) and connected with the auxiliary molding block (33).

2. The front mold part taking injection mold for the automobile bumper as claimed in claim 1, wherein: slope guiding hole (11) have been seted up to the rear end inner wall department of standing groove (5), slope guiding hole (11) with slope guide face (6) parallel, driving piece (7) are including actuating lever one, the front end of actuating lever one connect in vice shaping piece (32), the rear end protrusion of actuating lever one in slope guiding hole (11) for connect external drive source.

3. The front mold part taking injection mold for the automobile bumper as claimed in claim 2, wherein: auxiliary guide hole (12) have been seted up to the rear end inner wall department of holding groove (8), auxiliary guide hole (12) with auxiliary guide face (9) are parallel, driving piece two (10) are including driving lever two, the front end of driving lever two connect in inferior shaping piece (33), the rear end protrusion of driving lever two in auxiliary guide hole (12) for connect external drive source.

4. The front mold part taking injection mold for the automobile bumper as claimed in claim 3, wherein: the rear end of the rear die (4) is provided with an ejector plate (13), the rear end of the first driving rod is connected with the ejector plate (13) in a sliding mode, and the rear end of the second driving rod is fixedly connected with the ejector plate (13).

5. The front mold part taking injection mold for the automobile bumper as recited in claim 4, wherein: the front end of thimble board (13) is provided with sliding seat (14), T type spout (15) have been seted up to the front end of sliding seat (14), the front end of T type spout (15) is to keeping away from back mould (4) center one side extends, the rear end of actuating lever one is provided with T type slider (16), T type slider (16) slide connect in T type spout (15).

6. The front mold part taking injection mold for the automobile bumper as claimed in claim 2, wherein: mounting groove (17) have been seted up to the rear end of vice shaping piece (32), the front end of actuating lever one inserts mounting groove (17), counter sink (18) have been seted up to the lateral wall department of vice shaping piece (32), counter sink (18) communicate in mounting groove (17), be provided with connecting screw (19) in counter sink (18), connecting screw (19) threaded connection in actuating lever one.

7. The front mold part taking injection mold for the automobile bumper as claimed in claim 6, wherein: an air groove (20) is formed in the inner groove wall of the mounting groove (17), an air vent (21) is formed in the front end of the secondary forming block (32), and the air vent (21) is communicated with the air groove (20).

8. The front mold part taking injection mold for the automobile bumper as claimed in claim 7, wherein: the vent hole (21) comprises a material blocking section (211) arranged at the front end of the auxiliary forming block (32) and a connecting section (212) arranged at the rear end of the auxiliary forming block (32), the material blocking section (211) is communicated with the connecting section (212), and the inner diameter of the material blocking section (211) is gradually reduced on the side far away from the connecting section (212).

9. The front mold part taking injection mold for the automobile bumper as recited in claim 8, wherein: the end part, far away from the connecting section (212), of the material blocking section (211) is provided with a groove (22), and a material blocking net (23) is embedded in the groove (22).

10. The front mold part taking injection mold for the automobile bumper as claimed in claim 8, wherein: and a control air valve (24) is arranged at the end part of the connecting section (212) far away from the material blocking section (211).