CN111844649A

CN111844649A - Descending type demoulding mechanism for automobile instrument panel

Info

Publication number: CN111844649A
Application number: CN202010704442.XA
Authority: CN
Inventors: 何志军
Original assignee: Taizhou Meitu Molding Co ltd
Current assignee: Taizhou Meitu Molding Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2020-10-30

Abstract

The invention provides a descending type demoulding mechanism for an automobile instrument panel, which comprises a demoulding thimble, an ejector block, a trigger slide block, a driving piece and a response slide block, wherein the trigger slide block is transversely connected to an ejector plate in a sliding manner; the end part of the demoulding thimble far away from the ejector block is connected to the response sliding block. After the injection molding of the automobile instrument panel, the ejector pin plate is driven to move towards one side of the mold core through tools such as an oil cylinder, and in the process, the ejector pins arranged on the ejector pin plate can eject the injection molded automobile instrument panel from the mold core. Meanwhile, the triggering sliding block is controlled to transversely slide to one side on the ejector plate through the driving piece, the triggering sliding block drives the response sliding block to move towards one side of the bottom plate in the ejector plate, and the response sliding block drives the ejector block to move towards one side of the mold core through the demolding ejector pin, so that the ejector block is separated from the injection molding automobile instrument panel, and the piece taking is more convenient.

Description

Descending type demoulding mechanism for automobile instrument panel

Technical Field

The invention relates to an injection mold accessory, in particular to a descending type demolding mechanism for an automobile instrument panel.

Background

As shown in fig. 1, the conventional instrument panel for an automobile includes an instrument panel body 20 having a plurality of ribs formed on an inner surface thereof. Currently, the injection molding method is generally used for producing the automobile instrument panel through an injection mold. After the injection molding of the automobile instrument panel, the molded automobile instrument panel needs to be ejected away from the mold core through the ejector block in the injection mold. This in-process, if the area of contact between kicking block and the header board is great, and the terminal surface department that the kicking block is close to the header board is formed with more glue position and muscle position, then the condition of header board adhesion on the kicking block can appear, causes the influence to getting the piece.

Disclosure of Invention

In view of the above, the present invention is to provide a downward stripping mechanism for an automobile instrument panel, which has the advantages that the injection-molded automobile instrument panel is not easily adhered to the top block, and the fetching is convenient.

In order to solve the technical problems, the technical scheme of the invention is as follows: a descending demoulding mechanism of an automobile instrument panel comprises a demoulding thimble connected to a thimble plate and a top block arranged at the end part of the demoulding thimble, wherein the top block is tightly propped against the inner wall of the injection-moulded automobile instrument panel; the ejector pin plate is characterized by further comprising a trigger sliding block, a driving piece and a response sliding block, wherein the trigger sliding block is connected to the ejector pin plate in a transverse sliding mode, the driving piece is used for driving the trigger sliding block to slide, the response sliding block is connected to the trigger sliding block in an inclined sliding mode, and when the driving piece drives the trigger sliding block to slide on the ejector pin plate in the transverse direction, the trigger sliding block can drive the response sliding block to slide in the ejector; the end part of the demoulding thimble far away from the ejector block is connected to the response sliding block.

Through the technical scheme, after the injection molding of the automobile instrument panel, the ejector pin plate is driven to move towards one side of the mold core through tools such as the oil cylinder, and in the process, the ejector pins arranged on the ejector pin plate can eject the injection molded automobile instrument panel from the mold core. Meanwhile, the triggering sliding block is controlled to transversely slide to one side on the ejector plate through the driving piece, the triggering sliding block drives the response sliding block to move towards one side of the bottom plate in the ejector plate, and the response sliding block drives the ejector block to move towards one side of the mold core through the demolding ejector pin, so that the ejector block is separated from the injection molding automobile instrument panel, and the piece taking is more convenient.

Preferably, the trigger slide block is provided with a guide chute which is obliquely arranged; the response sliding block is provided with a guide sliding block, the guide sliding block is inserted into the guide sliding groove, and the guide sliding block is connected with the guide sliding groove in a sliding mode.

Through above-mentioned technical scheme, the cooperation of direction spout and direction slider is used for carrying out spacing direction to the sliding direction of response slider, and the cooperation of direction spout and direction slider can provide gliding power for the response slider simultaneously.

Preferably, a through groove is formed in one side of the trigger slider, the through groove penetrates through the trigger slider along the mold opening direction of the injection mold, the guide sliding groove is formed in the inner groove wall of the through groove, and the response slider is arranged in the through groove.

Through above-mentioned technical scheme, accomodate the response slider to leading to the inslot, can reduce header board decline formula demoulding mechanism's volume on the one hand, the inner wall that on the other hand led to the groove can support tightly to respond the slider and carry on spacingly to responding the slider.

Preferably, a guide inclined hole is arranged on the trigger sliding block in a penetrating manner, and the guide inclined hole is obliquely arranged; the driving piece comprises a guide inclined rod, one end of the guide inclined rod is fixed on a bottom plate of the injection mold, and the other end of the guide inclined rod penetrates through the ejector plate and extends into the guide inclined hole.

Through the technical scheme, in the process that the ejector pin plate moves towards one side of the die core, the guide inclined rod penetrates through the guide inclined hole, and the guide inclined rod is abutted against the inner hole wall of the guide inclined hole and drives the trigger sliding block to move.

Preferably, a guide sleeve is fixed inside the guide inclined hole, the guide inclined rod penetrates through the guide sleeve, and the guide inclined rod is abutted against the inner wall of the guide sleeve.

Through above-mentioned technical scheme, set up in the uide bushing of direction inclined hole inside, can carry out spacing direction to the slip of direction down tube on the one hand, on the other hand can reduce with the area of contact of direction down tube for the difficult wearing and tearing of direction down tube.

Preferably, trigger the slider and deviate from the mounting groove has been seted up to the terminal surface department of kicking block, the mounting groove with the direction inclined hole intercommunication, be provided with the mounting panel in the mounting groove, the mounting panel with uide bushing fixed connection, just the mounting panel passes through screw compression joint and is in the tank bottom department of mounting groove.

Through above-mentioned technical scheme, it is fixed with the trigger slide block with the uide bushing through the connecting plate, so can take out the uide bushing and change after the uide bushing serious wear.

Preferably, the number of the demoulding thimbles is two, and each demoulding thimble is provided with a cooling flow channel; a connecting flow passage is arranged on the ejector block and is respectively connected with the cooling flow passages in the two demolding ejector pins; the trigger slide block is provided with a water inlet which is communicated with the cooling flow channel of one demolding thimble, and the trigger slide block is also provided with a water outlet which is communicated with the cooling flow channel of the other demolding thimble.

Through the technical scheme, when the cooling water discharging device is used, cooling water is injected from the water inlet through tools such as a water pump, flows through the cooling flow channel and the connecting flow channel in one demolding thimble and the cooling flow channel in the other demolding thimble in sequence, and is finally discharged from the water outlet. The flowing cooling runner can cool the ejector block, and the ejector block which is cooled continuously can cool injection molding liquid in the mold cavity, so that the automobile instrument panel can be cooled and molded more quickly.

Preferably, the connecting flow channel is arranged inside the top block in a bending mode.

Through above-mentioned technical scheme, when the cooling water flowed through from the connection runner of buckling, can carry out comparatively effectual cooling to the kicking block is whole for the liquid of moulding plastics in the die cavity can cool off into header board more fast.

Preferably, an air bag is arranged in the through groove and is positioned between the trigger slider and the response slider; the end face, away from the trigger slide block, of the top block is provided with a plurality of air nozzles, the air nozzles are all expanded towards one side of the trigger slide block, a connecting air passage is arranged in the top block, and the connecting air passage is simultaneously connected with the air nozzles; a circulation air passage is arranged in the demolding thimble, one end of the circulation air passage is communicated with the connecting air passage, and the other end of the circulation air passage is communicated with the air bag.

Through above-mentioned technical scheme, stretch into when the direction down tube is inside to the direction inclined hole, response slider extrusion gasbag for inside air of gasbag enters into inside the circulation air flue, inside the inside air inflow of circulation air flue to connecting the air flue, the inside air of connecting the air flue enters into between product and the kicking block after a plurality of air faucets blowout, is used for making kicking block and product separation, and can assist the product drawing of patterns. When the die is closed, the guide inclined rod is gradually moved out of the guide inclined hole, the air bag is gradually restored to the original state, and in the process, the air bag can suck out air in the die cavity, so that injection molding liquid can more conveniently enter the die cavity in the injection molding process.

The air tap expands towards one side of the ejector plate, so that the mouth of the air tap is smaller, and injection molding liquid in the mold cavity is not easy to enter the air tap. Meanwhile, when the air leaves from the air nozzle, the speed is higher, and larger thrust can be applied to the product.

Because the response slider inclines to slide to bottom plate one side, so in the in-process that response slider and gasbag contact and extrude the gasbag, the response slider can drive the gasbag and warp to bottom plate one side, and the gasbag that so warp is difficult for some to enter into the space between cover half and the thimble board. In the ejection process of a product, the ejector plate can be tightly abutted to the fixed die, if part of the airbag enters between the fixed die and the ejector plate after being deformed, the part of the airbag is very easy to restore due to exceeding the elastic limit when being extruded by the fixed die and the ejector plate, and the service life of the airbag is greatly influenced.

Preferably, a conveyor belt is adhered to the end face, close to the response sliding block, of the air bag, a plurality of transmission teeth are arranged on the surface of the conveyor belt, a plurality of driving teeth are arranged on the end face, close to the air bag, of the response sliding block, and the driving teeth are meshed with the transmission teeth.

Through the technical scheme, in the process that the response sliding block inclines to slide towards one side of the bottom plate, the driving teeth arranged on the response sliding block can drive the air bag to deform towards one side of the bottom plate through the transmission teeth, and the deformed air bag is not easy to enter a space between the fixed die and the ejector plate. Meanwhile, the conveying belt which is fixedly adhered to the surface of the air bag can limit the air bag from entering a space between the fixed die and the ejector plate.

Drawings

FIG. 1 is a schematic view of the structure of an automobile dashboard;

FIG. 2 is a schematic view of the connection between the ejector plate and the base plate according to the first embodiment;

FIG. 3 is a schematic structural diagram according to a first embodiment;

FIG. 4 is an exploded view of the first embodiment;

FIG. 5 is a schematic structural view of a trigger slider and a response slider;

FIG. 6 is a schematic cross-sectional view of a top block;

FIG. 7 is a schematic sectional view of the second embodiment;

fig. 8 is an enlarged view of a portion a of fig. 7.

Reference numerals: 1. demolding the thimble; 2. a top block; 3. triggering the sliding block; 4. a drive member; 5. a response slider; 6. a guide chute; 7. a guide slider; 8. a through groove; 9. a guide inclined hole; 10. a guide diagonal rod; 11. a guide sleeve; 12. mounting grooves; 13. mounting a plate; 14. a cooling flow channel; 15. connecting the flow channel; 16. a water inlet; 17. a water outlet; 18. an ejector plate; 19. a base plate; 20. an instrument panel body; 21. an air bag; 22. an air tap; 23. connecting an air passage; 24. a ventilation airway; 25. a conveyor belt; 26. a transmission gear; 27. a driving tooth.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

The first embodiment is as follows:

a descending type demoulding mechanism of an automobile instrument panel is shown in figures 2 and 3 and comprises a trigger slide block 3, a driving piece 4, a response slide block 5 demoulding thimble 1 and a top block 2.

As shown in fig. 2, the trigger slider 3 is slidably connected to the ejector plate 18 of the injection mold, and the sliding direction of the trigger slider 3 is perpendicular to the mold opening direction of the injection mold.

As shown in fig. 3 and 4, a through groove 8 is formed in one side of the trigger slider 3, and the trigger slider 3 is penetrated through the through groove 8 along the mold opening direction of the injection mold. Guide chutes 6 are formed in two opposite inner groove walls of the through groove 8, the two guide chutes 6 are right opposite, and the guide chutes 6 are obliquely arranged.

As shown in fig. 4, a guiding inclined hole 9 is formed in one side of the trigger slider 3 away from the through groove 8, the guiding inclined hole 9 is obliquely arranged, and the distance between the guiding inclined hole 9 and the through groove 8 is gradually reduced toward one side of the mold core. The guide inclined hole 9 is internally provided with a guide sleeve 11.

As shown in fig. 2 and 5, an installation groove 12 is formed in the end surface of the trigger slider 3 close to the ejector plate 18, and the installation groove 12 is communicated with one side of the inclined guide hole 9. The mounting plate 13 is arranged in the mounting groove 12, the mounting plate 13 is connected to the bottom of the mounting groove 12 through screws in a compression mode, and one side of the mounting plate 13 and the guide sleeve 11 are integrally formed.

As shown in fig. 4, the driving member 4 includes a guiding diagonal rod 10, one end of the guiding diagonal rod 10 is fixed on a bottom plate 19 of the injection mold, the other end of the guiding diagonal rod 10 passes through the guiding sleeve 11, and an outer wall of the guiding diagonal rod 10 abuts against an inner wall of the guiding sleeve 11.

Response slider 5 sets up inside logical groove 8, and responds that slider 5 supports tightly with the terminal surface that logical groove 8 was provided with direction spout 6, and response slider 5 is provided with direction slider 7 with the relative terminal surface department of direction spout 6, and direction slider 7 and response slider 5 integrated into one piece, direction slider 7 stretch into to direction spout 6 inside and with the direction spout 6 connection that slides.

As shown in fig. 3, in the present embodiment, there are two demolding thimbles 1, two demolding thimbles 1 are both disposed on the response slider 5, and two demolding thimbles 1 are both disposed along the mold opening direction of the injection mold.

The ejector block 2 is arranged on the end part of the demoulding thimble 1 far away from the response slide block 5, and the ejector block 2 is simultaneously connected with the two demoulding thimbles 1.

As shown in fig. 3 and 6, each demolding thimble 1 is provided with a cooling flow channel 14, and the cooling flow channel 14 is arranged along the axial direction of the demolding thimble 1; a bent connecting flow channel 15 is arranged in the ejector block 2, two ends of the connecting flow channel 15 penetrate through the end face, close to the demolding thimble 1, of the ejector block 2, and two ends of the connecting flow channel 15 are respectively connected with the cooling flow channels 14 in the two demolding thimbles 1; the trigger slide block 3 is provided with a water inlet 16, the water inlet 16 is communicated with a cooling flow passage 14 of one demoulding thimble 1, the trigger slide block 3 is also provided with a water outlet 17, and the water outlet 17 is communicated with the cooling flow passage 14 of the other demoulding thimble 1.

Example two:

the difference between the second embodiment and the first embodiment is that, as shown in fig. 7 and 8, an air bag 21 is disposed inside the through slot 8, the air bag 21 is located between the trigger slider 3 and the response slider 5, and when the guiding diagonal rod 10 extends into the guiding diagonal hole 9, the response slider 5 can move to one side of the air bag 21 and press the air bag 21. A conveyor belt 25 is adhered to the air bag 21 near the response slide 5, and the texture of the conveyor belt 25 is harder than that of the air bag 21. The surface of conveyer belt 25 is provided with a plurality of driving teeth 26, and a plurality of driving teeth 26 are evenly distributed along the length direction of conveyer belt 25. The end face of the response sliding block 5 close to the air bag 21 is provided with a plurality of driving teeth 27, and the driving teeth 27 are meshed with the transmission teeth 26. The end face of the top block 2 departing from the trigger slide block 3 is provided with a plurality of air nozzles 22, and the plurality of air nozzles 22 are distributed at equal intervals. The air nozzles 22 extend along the axial direction of the demoulding thimble 1, and the diameter of the air nozzles 22 is expanded towards one side of the trigger slide block 3. The top block 2 is provided with a connecting air passage 23, the connecting air passage 23 is perpendicular to the air nozzles 22, and the connecting air passage 23 is connected with all the air nozzles 22 simultaneously. The demolding thimble 1 is provided with a circulation air passage 24, the circulation air passage 24 is arranged along the axial direction of the demolding thimble 1, one end of the circulation air passage 24 is communicated with the connecting air passage 23, and the other end is communicated with the air bag 21.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. A descending demoulding mechanism of an automobile instrument panel comprises a demoulding thimble (1) connected to an ejector plate (18) and an ejector block (2) arranged at the end part of the demoulding thimble (1), wherein the ejector block (2) is abutted against the inner wall of the injection-moulded automobile instrument panel; the method is characterized in that: the device is characterized by further comprising a trigger slide block (3) which is connected to the ejector plate (18) in a transverse sliding mode, a driving piece (4) which is used for driving the trigger slide block (3) to slide, and a response slide block (5) which is connected to the trigger slide block (3) in an inclined sliding mode, wherein when the driving piece (4) drives the trigger slide block (3) to transversely slide on the ejector plate (18), the trigger slide block (3) can drive the response slide block (5) to vertically slide in the ejector plate (18); the end part, far away from the ejector block (2), of the demolding ejector pin (1) is connected to the response sliding block (5).

2. The drop-down release mechanism for an automobile dashboard as set forth in claim 1, wherein: a guide sliding groove (6) is formed in the trigger sliding block (3), and the guide sliding groove (6) is obliquely arranged; the response sliding block (5) is provided with a guide sliding block (7), the guide sliding block (7) is inserted into the guide sliding groove (6), and the guide sliding block (7) is connected with the guide sliding groove (6) in a sliding mode.

3. The drop-down release mechanism for an automobile dashboard as set forth in claim 2, wherein: one side of the trigger sliding block (3) is provided with a through groove (8), the through groove (8) penetrates through the trigger sliding block (3) along the die sinking direction of the injection mold, the guide sliding groove (6) is arranged at the inner groove wall of the through groove (8), and the response sliding block (5) is arranged in the through groove (8).

4. The drop-down release mechanism for an automobile dashboard as set forth in claim 1, wherein: a guide inclined hole (9) is formed in the trigger sliding block (3) in a penetrating mode, and the guide inclined hole (9) is obliquely arranged; the driving piece (4) comprises a guide inclined rod (10), one end of the guide inclined rod (10) is fixed on a bottom plate (19) of the injection mold, and the other end of the guide inclined rod (10) penetrates through an ejector plate (18) and extends into the guide inclined hole (9).

5. The drop-down release mechanism for an automobile dashboard as set forth in claim 4, wherein: a guide sleeve (11) is fixed inside the guide inclined hole (9), the guide inclined rod (10) penetrates through the guide sleeve (11), and the guide inclined rod (10) is tightly abutted to the inner wall of the guide sleeve (11).

6. The drop-down release mechanism for an automobile dashboard as set forth in claim 5, wherein: trigger slider (3) and deviate from mounting groove (12) have been seted up to the terminal surface department of kicking block (2), mounting groove (12) with direction inclined hole (9) intercommunication, be provided with mounting panel (13) in mounting groove (12), mounting panel (13) with uide bushing (11) fixed connection, just mounting panel (13) compress tightly the connection through the screw in the tank bottom department of mounting groove (12).

7. The drop-down release mechanism for an automobile dashboard as set forth in claim 1, wherein: the number of the demoulding thimbles (1) is two, and each demoulding thimble (1) is provided with a cooling flow channel (14); a connecting flow channel (15) is arranged on the ejector block (2), and the connecting flow channel (15) is respectively connected with the cooling flow channels (14) in the two demolding ejector pins (1); the demolding device is characterized in that a water inlet (16) is formed in the trigger sliding block (3), the water inlet (16) is communicated with a cooling flow channel (14) of the demolding thimble (1), a water outlet (17) is further formed in the trigger sliding block (3), and the water outlet (17) is communicated with the cooling flow channel (14) of the demolding thimble (1).

8. The drop-down release mechanism for an automobile dashboard as recited in claim 7, wherein: the connecting flow channel (15) is arranged inside the top block (2) in a bending mode.

9. The drop-down release mechanism for an automobile dashboard as set forth in claim 3, wherein: an air bag (21) is arranged in the through groove (8), and the air bag (21) is positioned between the trigger sliding block (3) and the response sliding block (5); a plurality of air nozzles (22) are arranged on the end face of the top block (2) departing from the trigger slide block (3), the air nozzles (22) are all expanded to one side of the trigger slide block (3), a connecting air passage (23) is arranged in the top block (2), and the connecting air passage (23) is simultaneously connected with the air nozzles (22); a circulation air passage (24) is arranged in the demolding thimble (1), one end of the circulation air passage (24) is communicated with the connecting air passage (23), and the other end of the circulation air passage (24) is communicated with the air bag (21).

10. The drop-down release mechanism for an automobile dashboard as recited in claim 9, wherein: the gasbag (21) are close to the terminal surface department of response slider (5) glues and is equipped with conveyer belt (25), the surface of conveyer belt (25) is provided with a plurality of driving teeth (26), response slider (5) are close to the terminal surface department of gasbag (21) is provided with a plurality of initiative teeth (27), and is a plurality of initiative teeth (27) and a plurality of driving teeth (26) mesh.