CN215472728U - Injection mold for producing automobile C-column decorative plate - Google Patents

Abstract

The utility model relates to an injection mold for producing car C post decorative board, including last mould and lower mould, the lower mould is being close to the one end of going up the mould is provided with the core, it is provided with the die cavity to go up the one end that is close to the lower mould to go up the mould, the core with leave the fashioned clearance of confession decorative board between the die cavity, core side horizontal slip is provided with the subassembly of loosing core, the both ends of the subassembly of loosing core with the core with form the clearance that supplies the overlap to form between the die cavity, the core side is provided with a plurality of butt and is in the subassembly side of loosing core. This application has convenient drawing of patterns for characteristics such as production efficiency.

Description

Injection mold for producing automobile C-column decorative plate

Technical Field

The application relates to the technical field of injection molds, in particular to an injection mold for producing an automobile C-column decorative plate.

Background

At present, an injection mold is a tool for producing plastic products and is also a tool for endowing the plastic products with complete structures and accurate sizes. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification. The injection mold consists of a movable mold and a fixed mold, wherein the movable mold is arranged on a movable template of the injection molding machine, and the fixed mold is arranged on a fixed template of the injection molding machine. And when the mold is opened, the movable mold is separated from the fixed mold so as to take out the plastic product. In order to reduce the heavy mold design and manufacturing effort, injection molds mostly employ standard mold bases.

In the existing C-pillar trim of an automobile, as shown in fig. 6-7, the middle portion of the trim body is in an arc plate shape, and one side end of the trim body protrudes outward to form two fins 22, a long groove 23 is formed between the two fins 22, a clamping groove 24 for clamping and connecting a buckle and mounting the trim is formed at the bottom wall of the long groove 23, and a clamping strip 25 is formed on the inner side wall close to the upper fin.

The above related technical solutions have the following drawbacks: the surface area of the decorative plate is too large, so the decorative plate cannot be vertically molded in the injection mold, but horizontally molded in the injection mold, and the flash, the long groove and the clamping groove at the side end of the decorative plate are tightly contacted with a mold core in the injection mold after molding, so that the decorative plate is inconvenient to demold after molding.

SUMMERY OF THE UTILITY MODEL

In order to facilitate demolding, the application provides an injection mold for producing an automobile C-pillar decorative plate.

The above object of the present application is achieved by the following technical solutions:

the utility model provides an injection mold for producing car C post decorative board, includes mould and lower mould, the lower mould is being close to the one end of last mould is provided with the core, it is provided with the die cavity to go up the one end that is close to the lower mould to go up the mould, the core with leave the fashioned clearance of confession decorative board between the die cavity, core side horizontal slip is provided with the subassembly of loosing core, the subassembly of loosing core both ends with the core with form the clearance that supplies the overlap to form between the die cavity, the core side is provided with a plurality of butt and is in the shaping butt piece of the subassembly side of loosing core.

Through adopting above-mentioned technical scheme, when carrying out the production decorative board of moulding plastics through this injection mold, go up mould and lower mould compound die together, this moment core and die cavity are in the same place, the plastics of melt form are injected into to the clearance between core and the die cavity through last mould, the plastics of melt form flow in the clearance directly to form two fins of decorative board side after loosing core subassembly and the clearance between core and the core, the butt of piece butt is being loosed core the side of subassembly in the shaping simultaneously, the shaping is propped the week side shaping of piece in shaping after the plastics of melt form flow, thereby the shaping draw-in groove, when the die sinking, only need open mould and die cavity, then will loose core subassembly horizontal slip and go out, alright take out fashioned decorative board this moment. This scheme makes the drawing of patterns more convenient.

Preferably, the core pulling assemblies are provided with two groups and are respectively positioned at two side ends of the core.

Through adopting above-mentioned technical scheme, will loose core the subassembly and set to two sets ofly for when producing the decorative board through this injection mold, but two decorative boards of one shot forming, and carry out the drawing of patterns simultaneously, when keeping the drawing of patterns convenient, improved production efficiency.

Preferably, the core-pulling assembly comprises an upper core-pulling block and a lower core-pulling block, the upper end surface of the lower core-pulling block is abutted to the lower end surface of the upper core-pulling block and is inclined, the inclined direction points to the lower side of the core, and a forming long groove is formed in the upper end of the upper core-pulling block.

Through adopting above-mentioned technical scheme, the subassembly of loosing core includes core block and the lower core block of loosing core down, core block and the upper core block of loosing core can slide relatively down, when loosing core, core block outwards slides earlier down, core block slides along the inclined plane with core block looks butt down on this moment, thereby make core block down take out from the elongated slot of shaping decorative board gradually, and core block is vertical down earlier on, thereby separate with a overlap of decorative board, the card limit through shaping elongated slot shaping will expose and go out this moment, core block horizontal slip will last again can carry out the drawing of patterns, through will core block and the upper core block subsection of loosing core will be taken down in this scheme, thereby make things convenient for the drawing of patterns.

Preferably, the upper end of the lower core-pulling block is slidably provided with a linkage sliding column, and the lower end of the upper core-pulling block is provided with a splicing groove for splicing the linkage sliding column.

By adopting the technical scheme, when the lower core pulling block horizontally slides, the linkage sliding column slides at the upper end of the lower core pulling block until the forming long groove on the upper core pulling block is separated from the forming clamping strip on the decorative plate, at the moment, the linkage sliding column and the lower core pulling block stop relative movement, and the lower core pulling block is continuously moved to drive the upper core pulling block to move together through the linkage sliding column, so that the whole core pulling process is completed, the upper core pulling block and the lower core pulling block are linked in the scheme, and the lower core pulling block only needs to be continuously moved when the core is pulled, so that the core pulling is more convenient.

Preferably, drive oil cylinders are embedded in the two side ends of the lower die, piston rods of the drive oil cylinders horizontally face away from one side of the core, connecting seats are arranged on the piston rods of the drive oil cylinders, and the connecting seats are fixed at the outer side ends of the lower core-pulling block.

Through adopting above-mentioned technical scheme, with the direct embedded both sides end of drive cylinder in the lower mould, then drive the connecting seat through the piston rod of drive cylinder and drive down loose core piece horizontal migration again to make the process of loosing core convenient, drive cylinder is embedded simultaneously in the lower mould side, can not increase whole injection mold's volume, thereby still can produce through the injection molding machine of former size, practice thrift the cost.

Preferably, the lower die is arranged on two sides of the driving oil cylinder and provided with sliding grooves, sliding blocks fixed to the lower end of the lower core-pulling block are arranged in the sliding grooves in a sliding mode, sliding rails are arranged on two sides of the driving oil cylinder, and a slide rail for the sliding rails to be embedded into and slide is arranged at the lower end of the lower core-pulling block.

Through adopting above-mentioned technical scheme, when the piece horizontal migration of loosing core under the drive cylinder drives, the slide rail on the lower mould slides in the slide of lower core pulling block lower extreme to guarantee that the direction that the piece slided of loosing core down is accurate, the piece drives the slider and slides in the spout down simultaneously, further guarantees to loose core down the piece direction of sliding of loosing core, thereby makes when loosing core down the piece and looses core more accurate, reduces the emergence of card probability of stumbling.

Preferably, the upper end of the lower core-pulling block is provided with a sliding seat, and the lower end of the upper core-pulling block is provided with a guide groove for the sliding seat to slide in an inserting manner.

Through adopting above-mentioned technical scheme, when core pulling block drive was pulled core down and is removed, the slide of core pulling block upper end was pegged graft down and is slided in the guide way down to make the more stable and accurate of core pulling block removal on going up.

Preferably, a plurality of cooling flow channels communicated with the mold core and the cavity are formed at the side ends of the lower mold and the upper mold.

Through adopting above-mentioned technical scheme, whole decorative board is platelike, and when the molding of fused plastics flow, the cooling time at each position of decorative board is different, and this scheme accelerates the cooling shaping speed of decorative board through setting up the cooling runner to promote the production efficiency of decorative board.

To sum up, the beneficial technical effect of this application does:

1. when the injection mold is used for producing the decorative plate by injection molding, the upper mold and the lower mold are combined together, the mold core and the mold cavity are combined together at the moment, molten plastic is injected into a gap between the mold core and the mold cavity through the upper mold, the molten plastic flows in the gap and directly flows to the core pulling assembly and the gap between the mold core and the mold core to form two fins at the side end of the decorative plate, the forming butt joint block is abutted against the side end of the core pulling assembly, the molten plastic flows through and is formed on the peripheral side of the forming butt joint block, so that a clamping groove is formed, when the mold is opened, the upper mold and the mold cavity only need to be opened, then the core pulling assembly is horizontally slid out, and the formed decorative plate can be taken out at the moment, so that the mold is more convenient to demold;

2. the lower core-pulling block slides outwards firstly, at the moment, the upper core-pulling block slides along an inclined plane which is abutted with the lower core-pulling block, so that the lower core-pulling block is gradually pulled out from a long groove of the formed decorative plate, the upper core-pulling block vertically moves downwards firstly, so that the upper core-pulling block is separated from a flash of the decorative plate, the flash formed by the long groove is exposed and taken out, finally, the upper core-pulling block horizontally slides to perform demoulding, and the lower core-pulling block and the upper core-pulling block are pulled out in part, so that demoulding is convenient;

3. when the lower core-pulling block horizontally slides, the linkage sliding column slides at the upper end of the lower core-pulling block until a long molding groove on the upper core-pulling block is separated from a clamping strip molded on the decorative plate, at the moment, the linkage sliding column and the lower core-pulling block stop relative movement, and the lower core-pulling block is driven by the linkage sliding column to move together by continuously moving the lower core-pulling block, so that the whole core-pulling process is completed, the upper core-pulling block and the lower core-pulling block are linked, and the lower core-pulling block only needs to be continuously moved during core pulling, so that the core-pulling process is more convenient.

Drawings

FIG. 1 is a schematic structural view of an injection mold for producing an automotive C-pillar trim panel;

FIG. 2 is an exploded view of an injection mold for producing an automotive C-pillar trim panel;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is an enlarged view of FIG. 2 at B;

FIG. 5 is a schematic structural view of a core pulling assembly;

FIG. 6 is a schematic structural view of a C-pillar trim panel of an automobile;

fig. 7 is a structural view of the C-pillar trim of the vehicle from another perspective.

In the figure: 1. an upper die; 2. a lower die; 3. a cavity; 4. a core; 5. a core pulling assembly; 6. mounting grooves; 7. a driving oil cylinder; 8. a chute; 9. a slider; 10. a slide rail; 11. taking out the core block; 12. taking out the core block; 13. a connecting seat; 14. forming the abutting block; 15. forming a long groove; 16. a linkage groove; 17. a linkage sliding column; 18. inserting grooves; 19. a slide base; 20. a guide groove; 21. a cooling flow channel; 22. flashing; 23. a long groove; 24. a card slot; 25. clamping the strip; 26. a slideway.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

Referring to fig. 1 and 2, an injection mold for producing an automobile C-pillar trim panel comprises an upper mold 1, a lower mold 2, a cavity 3 fixed at the lower end of the upper mold 1 through bolts, a core 4 fixed at the upper end of the lower mold 2 through bolts, and two sets of core pulling assemblies 5 positioned at two side ends of the core 4.

A gap is reserved between the cavity 3 and the core 4 for forming the decorative plate, and one end of the upper die 1, which is far away from the lower die 2, is provided with a material injection hole for inserting the material injection head and injecting molten plastic into the gap between the cavity 3 and the core 4.

Referring to fig. 2 and 3, mounting grooves 6 are formed in the two side ends of a mold core 4 at the upper end of a lower mold 2, driving oil cylinders 7 are fixed in the mounting grooves 6 through bolts, piston rods of the two driving oil cylinders 7 face towards one side away from ears, sliding grooves 8 are respectively formed in the two sides of the driving oil cylinders 7 at the upper end of the lower mold 2, the facing directions of the sliding grooves 8 are the same as those of the piston rods of the driving oil cylinders 7, sliding blocks 9 are inserted into the sliding grooves 8 in a sliding mode, sliding rails 10 protruding out of the upper end of the lower mold 2 are fixed at one ends, away from the mold core 4, of the sliding blocks 2 through bolts, and the sliding blocks 9 slide to the side ends of the abutting sliding rails 10 to stop.

Referring to fig. 3, 4 and 5, the core-pulling assembly 5 includes a lower core-pulling block 11 and an upper core-pulling block 12, a connecting seat 13 is fixed on a piston rod of the driving oil cylinder 7 through a bolt, the connecting seat 13 is fixed at an outer side end of the lower core-pulling block 11 through a bolt, the piston rod of the driving oil cylinder 7 is ejected out to drive the lower core-pulling block 11 to move horizontally, a slide way 26 for the slide rail 10 to slide is arranged at a lower end of the lower core-pulling block 11, and meanwhile, the slide block 9 is fixed at a lower end of the lower core-pulling block 11 through a bolt.

The upper end surface of the lower core-pulling block 11 is inclined, the lower end surface of the upper core-pulling block 12 is abutted to the upper end of the lower core-pulling block 11, the inclined direction of the abutted end surface of the upper core-pulling block 12 and the lower core-pulling block 11 is inclined downwards to point to the core 4, and a plurality of forming abutting blocks 14 abutted to the side end of the lower core-pulling block 11 are integrally arranged at the side end of the core 4.

The upper end of the upper core-pulling block 12 is provided with a long strip-shaped forming groove 15, a clamping strip 25 is formed in the groove during injection molding, the upper end of the lower core-pulling block 11 is provided with a linkage groove 16, a linkage sliding column 17 is inserted in the linkage groove 16 in a sliding and moving manner, the lower end of the upper core-pulling block 12 is provided with an insertion groove 18 for inserting the upper end of the linkage sliding column 17, the upper core-pulling block 12 can be driven to slide together when the linkage sliding column 17 slides to one side in the linkage groove 16, so that two sections of core pulling are formed, namely, the lower core-pulling block 11 horizontally moves towards the outer side, and the upper core-pulling block 12 moves downwards at the moment, so that the formed clamping strip 25 is discharged and then horizontally moves together with the lower core-pulling block 11.

The upper end of the lower core-pulling block 11 is fixed with a sliding seat 19 through a bolt, and the lower end of the upper core-pulling block 12 is provided with a guide groove 20 for the sliding seat 19 to insert and slide, so that the upper core-pulling block 12 can slide downwards under the guide of the sliding seat 19 and the guide groove 20 when sliding.

Referring to fig. 2, a plurality of cooling channels 21 for water communication are formed at the side ends of the lower mold 2 and the upper mold 1, and the cooling channels 21 are communicated with the core 4 and the cavity 3.

The implementation principle of the embodiment is as follows:

when the injection mold is used for injection molding to produce the decorative plate, the upper mold 1 and the lower mold 2 are closed together, the mold core 4 and the mold cavity 3 are combined together, molten plastic is injected into a gap between the mold core 4 and the mold cavity 3 through the upper mold 1, the molten plastic flows in the gap and directly flows to a gap between the core-pulling assembly 5 and the mold core 4 to form two fins 22 at the side end of the decorative plate, the molding abutting block 14 abuts against the side end of the core-pulling assembly 5, the molten plastic flows through and is molded on the peripheral side of the molding abutting block 14, so that the molding clamping groove 24 is formed, a clamping strip 25 is formed at the position of the molding elongated slot 15, cold water is introduced into a cold area flow channel to accelerate cooling molding, the upper mold 1 drives the mold cavity 3 to be opened, the piston rod of the driving oil cylinder 7 extends out, the core-pulling block 11 is driven to move horizontally through the connecting seat 13, and the linkage sliding column 17 slides at the upper end of the lower core-pulling block 11, until the long molding groove 15 on the upper core-pulling block 12 is separated from the clamping strip 25 molded on the decorative plate, the linkage sliding column 17 and the lower core-pulling block 11 stop moving relatively, and the lower core-pulling block 11 will drive the upper core-pulling block 12 to move together through the linkage sliding column 17 when moving continuously, so as to complete the whole core-pulling process, finally the molded decorative plate is taken out, and the core-pulling assembly 5 is reset to prepare for the next production.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides an injection mold for producing car C post decorative board which characterized in that: including last mould (1) and lower mould (2), lower mould (2) are being close to the one end of going up mould (1) is provided with core (4), it is provided with die cavity (3) to go up mould (1) in the one end of being close to lower mould (2), core (4) with leave the fashioned clearance of confession decorative board between die cavity (3), core (4) side level slides and is provided with subassembly (5) of loosing core, the both ends of subassembly (5) of loosing core with core (4) with form the clearance that supplies overlap (22) to form between die cavity (3), core (4) side is provided with a plurality of butt and is in the shaping butt piece (14) of subassembly (5) side of loosing core.

2. The injection mold for producing an automotive C-pillar trim panel according to claim 1, characterized in that: the core pulling assembly (5) is provided with two groups and is respectively positioned at two side ends of the mold core (4).

3. The injection mold for producing an automotive C-pillar trim panel according to claim 2, characterized in that: the core-pulling assembly (5) comprises an upper core-pulling block (12) and a lower core-pulling block (11), the upper end face of the lower core-pulling block (11) is abutted to the lower end face of the upper core-pulling block (12) and is inclined, the inclined direction points to the lower side of the mold core (4), and a forming long groove (15) is formed in the upper end of the upper core-pulling block (12).

4. An injection mold for producing an automotive C-pillar trim panel according to claim 3, characterized in that: the upper end of the lower core-pulling block (11) is provided with a linkage sliding column (17) in a sliding mode, and the lower end of the upper core-pulling block (12) is provided with an insertion groove (18) for the linkage sliding column (17) to be inserted.

5. The injection mold for producing an automotive C-pillar trim panel according to claim 4, characterized in that: the mould core is characterized in that drive oil cylinders (7) are embedded in two side ends of the lower mould (2), piston rods of the drive oil cylinders (7) horizontally face away from one side of the mould core (4), connecting seats (13) are arranged on the piston rods of the drive oil cylinders (7), and the connecting seats (13) are fixed at outer side ends of the lower core-pulling block (11).

6. The injection mold for producing an automotive C-pillar trim panel according to claim 5, characterized in that: the lower die (2) is arranged on two sides of the driving oil cylinder (7) and is provided with sliding grooves (8), sliding blocks (9) fixed to the lower end of the lower core-pulling block (11) are arranged in the sliding grooves (8) in a sliding mode, sliding rails (10) are arranged on two sides of the driving oil cylinder (7) of the lower die (2), and the lower end of the lower core-pulling block (11) is provided with a slide rail (26) for the sliding rails (10) to be embedded into and slide.

7. The injection mold for producing an automotive C-pillar trim panel according to claim 6, characterized in that: the upper end of the lower core-pulling block (11) is provided with a sliding seat (19), and the lower end of the upper core-pulling block (12) is provided with a guide groove (20) for the sliding seat (19) to be inserted and slid.

8. The injection mold for producing an automotive C-pillar trim panel according to claim 1, characterized in that: and a plurality of cooling flow channels (21) communicated with the mold core (4) and the mold cavity (3) are formed at the side ends of the lower mold (2) and the upper mold (1).

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