CN216782547U

CN216782547U - High-precision plastic mold for automotive interior plastic part

Info

Publication number: CN216782547U
Application number: CN202122612747.0U
Authority: CN
Inventors: 汪仁发; 许鸿彪; 陆滨; 葛建华
Original assignee: Nantong Yigao Plastic Co ltd
Current assignee: Nantong Yigao Plastic Co ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-06-21
Anticipated expiration: 2031-10-28

Abstract

The utility model relates to the technical field of plastic molds, and discloses a high-precision plastic mold for automotive interior plastic parts, which comprises a bottom plate and a top plate, wherein the bottom plate and the top plate are connected through a vertical rod, an electric telescopic rod is fixedly arranged on the lower wall surface of the top plate, an upper mold is fixedly arranged at the free end of the electric telescopic rod, a lower mold is arranged at the position of the bottom plate corresponding to the upper mold, a lower mold cavity is arranged on the lower mold, an upper mold cavity is arranged on the upper mold, a trimming device is arranged on the upper mold, an ejection mechanism is arranged inside the lower mold, an injection molding hole is arranged on the upper mold, the electric telescopic rod is started to enable the upper mold and the lower mold to be attached, then plastic liquid is injected into the mold cavities of the upper mold and the lower mold through the injection molding hole, after a cold area is waited, the overflowing flash is cut off by the trimming device, then the ejection mechanism is used, and ejecting the plastic mold in the lower mold cavity.

Description

High-precision plastic mold for automotive interior plastic part

Technical Field

The utility model relates to the technical field of plastic molds, in particular to a high-precision plastic mold for an automotive interior plastic part.

Background

The plastic mold is a short name for a combined mold used for compression molding, extrusion molding, injection, blow molding and low-foaming molding. The coordination change of the male die, the female die and the auxiliary forming system of the die can process a series of plastic parts with different shapes and sizes.

Various tools and products used in daily production and life are large in size of a base and a machine body shell of a machine tool and small in size of a screw with a head, a button and shells of various household appliances, and have no close relation with a die. The shape of the mold determines the shape of the products, and the processing quality and precision of the mold determine the quality of the products. Because of the difference in material, appearance, specification and usage of various products, the molds are classified into non-plastic molds such as casting molds, forging molds, die-casting molds, stamping molds and the like, and plastic molds.

After the existing plastic mold is subjected to injection molding and cooling, the existing plastic mold can be matched with an ejection mechanism to eject a plastic workpiece in a mold cavity, but the existing partial ejection mechanism is in a downward pressing type, needs manual pressing by hands, is relatively labor-consuming, and therefore the high-precision plastic mold for the automotive interior plastic part is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a high-precision plastic mold for an automotive interior plastic part, which solves the problems.

(II) technical scheme

In order to achieve the above purpose, the utility model provides the following technical scheme: a high-precision plastic mold for automotive trim plastic parts comprises a bottom plate and a top plate, wherein the bottom plate and the top plate are connected through a vertical rod, an electric telescopic rod is fixedly arranged on the lower wall surface of the top plate, an upper die is fixedly arranged on the free end of the electric telescopic rod, a lower die is arranged on the bottom plate corresponding to the upper die, a lower die cavity is arranged on the lower die, an upper die cavity is arranged on the upper die, the upper die is provided with a trimming device, the lower die is internally provided with an ejection mechanism, the upper die is provided with an injection hole, an electric telescopic rod is started to enable the upper die to be attached to the lower die, then injecting plastic liquid into the inner parts of the die cavities of the upper die and the lower die by using the injection molding holes, waiting for a cold area, and cutting off the overflowing flash by using a trimming device, and ejecting the plastic mold in the lower mold cavity by using an ejection mechanism.

Preferably, the side cut device includes cutter and horizontal pole, has seted up annular connector on the last mould, and the cutter is pegged graft in the inside of connector, and the lower extreme of cutter is the edge of a knife, magnet is installed to the outer wall of cutter, and magnet can adsorb the inside of connector, and the one end that the cutter extended to the top outside of last mould is provided with the scale, and when the top wall of last mould kept flushing with the scale on the cutter, the lower extreme of cutter flushed with the top inner wall of last die cavity, and the cutter corresponds with the lateral wall face of last die cavity, install the horizontal pole on the cutter, mould liquid when the inside injection of die cavity, after the cooling, press the horizontal pole downwards for the cutter moves downwards, and the cutter can be amputated the overlap that overflows in the clearance between last mould and the lower mould, has reduced after the later stage drawing of patterns, still need carry out the process of revising to its corner.

Preferably, the lower wall surface of the upper die is provided with a protrusion, the lower die is provided with a groove at a position corresponding to the protrusion, the protrusion is matched with the groove, the protrusion and the groove are connected in an inserting mode, when the upper die moves downwards, the protrusion can be connected in the groove in an inserting mode, and the arrangement can effectively provide guiding effect for the upper die moving downwards.

Preferably, ejection mechanism includes the liftout plate, and the liftout plate setting is in the inside of die cavity down, set up threaded hole on the bottom inner wall of die cavity down, the inside of bed die sets up the inside groove with the screw hole intercommunication, the internal thread of screw hole is connected with the screw thread post, the below wall swing joint that the upper end of screw thread post passes through bearing and liftout plate is in the same place, the shape of liftout plate is the same with the profile of bed die, the lower extreme of screw thread post is provided with the connecting block, and the lower extreme of connecting block extends to the inside in inside groove.

Preferably, the upper end of the connecting block is fixedly provided with an inserting block, the upper end of the inserting block is fixedly provided with a rectangular fixture block, the rectangular fixture block is rectangular, the lower wall surface of the threaded column is provided with a jack clamped with the inserting block, the inner wall of the top of the jack is provided with a rectangular groove clamped with the rectangular fixture block, the rectangular groove is a rectangular groove, the inside of the inner groove is provided with a driving device capable of driving the connecting block to rotate,

preferably, the driving device comprises a rotating rod and a rotating handle, the rotating rod and the rotating handle are connected together, the lower die is provided with a connecting groove communicated with the inner groove, the rotating rod is connected with the connecting groove in an inserting manner, one end of the rotating rod, which is positioned in the inner groove, is fixedly provided with a first helical gear, the lower end of the connecting block is provided with a second helical gear which is meshed with the first helical gear, when the die in the lower die cavity needs to be ejected, the rotating rod is driven to rotate by the rotating handle, then the second helical gear is driven to rotate by the first helical gear, the threaded column is driven to rotate by the connecting block, and then the threaded column is driven to ascend or descend by matching with the threaded hole, so that the ejection of the die in the lower die cavity is completed, the device is arranged to eject the material in the lower die cavity more easily and is convenient to use, and compared with the existing partial downward-pressing type ejection structure, this device adopts the mode of rotatory bull stick, and is more laborsaving.

(III) advantageous effects

Compared with the prior art, the utility model provides a high-precision plastic mold for an automotive interior plastic part, which has the following beneficial effects:

1. this automotive interior plastic part high accuracy plastic mould, when needing the mould in the die cavity down ejecting, rotatory rotation handle drives the bull stick rotation, then helical gear one drive helical gear two rotates, it is rotatory to drive the screw thread post through the connecting block, then the cooperation screw hole, the drive screw thread post rises or descends, the completion is ejecting to the inside mould of die cavity down, such setting up of this device is ejecting with the inside material of die cavity down more easily, and convenient to use, and for the ejecting structure of current part push down formula, this device adopts the mode of rotatory bull stick, and is more laborsaving.

2. This automotive interior plastic part high accuracy plastic mould, after the mould cavity is inside to be injected into and mould liquid, after the cooling, press the horizontal pole downwards for the cutter moves down, and the cutter can be to the overlap of overflowing in the clearance between last mould and the bed die excision, after having reduced the later stage drawing of patterns, still need carry out the process of revising to its corner.

Drawings

FIG. 1 is a schematic cross-sectional view of the structure of the present invention;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

In the figure: 1. a base plate; 2. a top plate; 3. an electric telescopic rod; 4. an upper die; 5. a connecting port; 6. a cutter; 7. a cross bar; 8. injection molding holes; 9. a vertical rod; 10. a lower die; 11. a protrusion; 12. a groove; 13. ejecting the plate; 14. connecting grooves; 15. a rotating rod; 16. rotating the handle; 17. an inner groove; 18. a first bevel gear; 19. a second bevel gear; 20. connecting blocks; 21. A threaded hole; 22. a jack; 23. a rectangular groove; 24. inserting a block; 25. a rectangular fixture block; 26. a threaded post; 27. and a bearing.

Detailed Description

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

Referring to fig. 1-2, a high-precision plastic mold for automotive interior plastic parts comprises a bottom plate 1 and a top plate 2, wherein the bottom plate 1 and the top plate 2 are connected through a vertical rod 9, an electric telescopic rod 3 is fixedly installed on the lower wall surface of the top plate 2, an upper mold 4 is fixedly installed at the free end of the electric telescopic rod 3, a lower mold 10 is installed at the position of the bottom plate 1 corresponding to the upper mold 4, a lower mold cavity is formed on the lower mold 10, an upper mold cavity is formed on the upper mold 4, a trimming device is arranged on the upper mold 4, an ejection mechanism is arranged inside the lower mold 10, an injection hole 8 is formed on the upper mold 4, the electric telescopic rod 3 is started to enable the upper mold 4 and the lower mold 10 to be attached, then, a plastic material liquid is injected into the mold cavities of the upper mold 4 and the lower mold 10 by using the injection hole 8, after waiting for a cold area, the overflowing flash is cut by the trimming device, and then ejecting the plastic mold in the lower mold cavity by using an ejection mechanism.

Furthermore, the edge cutting device comprises a cutter 6 and a cross rod 7, an annular connecting port 5 is arranged on the upper die 4, the cutter 6 is inserted in the connecting port 5, the lower end of the cutter 6 is a knife edge, the outer wall surface of the cutter 6 is provided with a magnet which can adsorb the inside of the connecting port 5, and the end of the cutter 6 extending to the outer side of the top of the upper die 4 is provided with scales, when the top wall surface of the upper die 4 is kept flush with the upper scale of the cutter 6, the lower end of the cutter 6 is flush with the top inner wall of the upper die cavity, the cutter 6 corresponds to the side wall surface of the upper die cavity, a cross rod 7 is arranged on the cutter 6, when the mold cavity is internally injected with the plastic liquid, the cross rod 7 is pressed downwards after cooling, so that the cutter 6 moves downwards, the cutter 6 can cut off the flash overflowing from the gap between the upper mold 4 and the lower mold 10, and the process of correcting the corners of the mold after later-stage demolding is reduced.

Furthermore, the lower wall surface of the upper die 4 is provided with a protrusion 11, the lower die 10 is provided with a groove 12 at a position corresponding to the protrusion 11, the protrusion 11 is matched with the groove 12, the protrusion 11 is inserted into the groove 12, when the upper die 4 moves downwards, the protrusion 11 can be inserted into the groove 12, and the arrangement can effectively provide a guiding effect for the upper die 4 moving downwards.

Further, ejection mechanism includes liftout plate 13, liftout plate 13 sets up the inside at die cavity down, set up threaded hole 21 on the bottom inner wall of die cavity down, the inside of bed die 10 is seted up the inside groove 17 with threaded hole 21 intercommunication, the internal thread of threaded hole 21 is connected with screw thread post 26, bearing 27 is passed through to screw thread post 26's upper end and is in the same place with liftout plate 13's below wall swing joint, the shape of liftout plate 13 is the same with the profile of bed die 10, the lower extreme of screw thread post 26 is provided with connecting block 20, the lower extreme of connecting block 20 extends to the inside of inside groove 17.

Further, an insert block 24 is fixedly mounted at the upper end of the connecting block 20, a rectangular fixture block 25 is fixedly mounted at the upper end of the insert block 24, the rectangular fixture block 25 is rectangular, a jack 22 clamped with the insert block 24 is formed in the lower wall surface of the threaded column 26, a rectangular groove 23 clamped with the rectangular fixture block 25 is formed in the inner wall of the top of the jack 22, the rectangular groove 23 is a rectangular groove, a driving device capable of driving the connecting block 20 to rotate is arranged inside the inner groove 17,

further, a rotating rod 15 and a rotating handle 16 of the driving device are connected together, the rotating rod 15 and the rotating handle 16 are provided with a connecting groove 14 communicated with an internal groove 17 on the lower die 10, the rotating rod 15 and the connecting groove 14 are inserted together, a first helical gear 18 is fixedly mounted at one end of the rotating rod 15 positioned in the internal groove 17, a second helical gear 19 meshed with the first helical gear 18 is mounted at the lower end of the connecting block 20, when the die in the lower die cavity needs to be ejected, the rotating rod 15 is driven to rotate by rotating the rotating handle 16, then the second helical gear 19 is driven to rotate by the first helical gear 18, the threaded column 26 is driven to rotate by the connecting block 20, then the threaded column 21 is matched to drive the threaded column 26 to ascend or descend, so that the ejection of the die in the lower die cavity is completed, the device is more easy to eject the material in the lower die cavity, and is convenient to use, compared with the existing partial downward-pressing type ejection structure, the device adopts the mode of rotating the rotating rod 15, and is more labor-saving.

When the plastic injection molding device is used, the electric telescopic rod 3 is started, the upper die 4 is attached to the lower die 10, then the injection molding holes 8 are utilized to inject plastic liquid into the die cavities of the upper die 4 and the lower die 10, after waiting for a cold area, the overflowing flash is cut off by the trimming device, and then the plastic die in the lower die cavity is ejected by the ejection mechanism.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automotive interior plastic part high accuracy plastic mould, includes bottom plate (1) and roof (2), connect its characterized in that through montant (9) between bottom plate (1) and roof (2): the lower wall surface of the top plate (2) is fixedly provided with an electric telescopic rod (3), the free end of the electric telescopic rod (3) is fixedly provided with an upper die (4), the bottom plate (1) corresponds to the position of the upper die (4) and is provided with a lower die (10), a lower die cavity is formed in the lower die (10), an upper die cavity is formed in the upper die (4), a trimming device is arranged on the upper die (4), an ejection mechanism is arranged inside the lower die (10), and an injection molding hole (8) is formed in the upper die (4).

2. The high-precision plastic mold for automotive interior plastic parts according to claim 1, wherein: the edge cutting device comprises a cutter (6) and a cross rod (7), an annular connecting port (5) is formed in the upper die (4), the cutter (6) is inserted into the connecting port (5), and the cross rod (7) is installed on the cutter (6).

3. The high-precision plastic mold for the automotive interior plastic part according to claim 1, wherein: the lower wall surface of the upper die (4) is provided with a protrusion (11), a groove (12) is formed in the position, corresponding to the protrusion (11), of the lower die (10), the protrusion (11) is matched with the groove (12), and the protrusion (11) and the groove (12) are connected in an inserting mode.

4. The high-precision plastic mold for automotive interior plastic parts according to claim 1, wherein: the ejection mechanism comprises an ejection plate (13), the ejection plate (13) is arranged in the lower die cavity, a threaded hole (21) is formed in the inner wall of the bottom of the lower die cavity, an inner groove (17) communicated with the threaded hole (21) is formed in the lower die (10), a threaded column (26) is connected to the inner thread of the threaded hole (21), the upper end of the threaded column (26) is movably connected with the lower wall of the ejection plate (13) through a bearing (27), the shape of the ejection plate (13) is identical to the contour of the lower die (10), a connecting block (20) is arranged at the lower end of the threaded column (26), and the lower end of the connecting block (20) extends into the inner part of the inner groove (17).

5. The high-precision plastic mold for automotive interior plastic parts according to claim 4, wherein: the utility model discloses a socket for fixing a screw thread, including connecting block (20), the upper end fixed mounting of connecting block (20) has inserted block (24), and the upper end fixed mounting of inserted block (24) has rectangle fixture block (25), rectangle fixture block (25) are the rectangle, jack (22) with inserted block (24) joint together are seted up to the below wall of screw thread post (26), and rectangular channel (23) with rectangle fixture block (25) joint together are seted up to the top inner wall of jack (22), rectangular channel (23) are the groove of rectangle, the inside of inside groove (17) is provided with can drive connecting block (20) and carry out rotatory drive arrangement.

6. The high-precision plastic mold for automotive interior plastic parts according to claim 5, wherein: drive arrangement bull stick (15) and rotation handle (16), bull stick (15) and rotation handle (16) link together, offer on bed die (10) spread groove (14) with inside groove (17) intercommunication, bull stick (15) are pegged graft together with spread groove (14), the one end fixed mounting that bull stick (15) are located inside groove (17) has helical gear (18), and helical gear two (19) together with helical gear (18) meshing are installed to the lower extreme of connecting block (20).