CN221540539U

CN221540539U - Plastic part mold

Info

Publication number: CN221540539U
Application number: CN202322424117.XU
Authority: CN
Inventors: 王金安
Original assignee: Taizhou Huangyan Jingan Mould Co ltd
Current assignee: Taizhou Huangyan Jingan Mould Co ltd
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2024-08-16
Anticipated expiration: 2033-09-07

Abstract

The application relates to a plastic part die, which comprises an upper die and a lower die, wherein a forming cavity is formed in one side of the upper die, which is opposite to the lower die, a sliding cavity is formed in the lower die, a sliding plate is connected in the sliding cavity in a sliding manner, the sliding direction of the sliding plate is in a vertical direction, a driving part is fixed on the sliding plate, the output end of the driving part is vertically downward, and the output end of the driving part is fixed with the lower die; the sliding plate is provided with an ejector rod, the lower die is provided with an ejector hole for the ejector rod to pass through, and the ejector rod is used for ejecting the formed part. The application has the effect of reducing the cost of the die.

Description

Plastic part mold

Technical Field

The application relates to the field of molds, in particular to a plastic part mold.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and precise dimensions. Injection molding is a process used in mass production of parts of complex shape. Specifically, the heated and melted plastic is injected into a die cavity under high pressure by an injection molding machine, and a formed product is obtained after cooling and solidification.

Fig. 1 is a plastic part, specifically an automobile plastic part, and comprises a plastic part body 1, wherein a plurality of preformed holes 2 are formed in the plastic part body 1. After the plastic part body 1 is cooled and solidified, a molded part is required to be ejected through a metal rod on a die, in the related art, the metal rod is used as a driving source to eject the molded part through an oil cylinder, and one oil cylinder (a plurality of ejection rods are generally arranged) is usually connected with one metal rod, and the arrangement of a plurality of oil cylinders not only increases the overall weight of the die, but also increases the mounting difficulty of the die, and increases the cost of the die to be improved.

Disclosure of utility model

In order to reduce the cost of the mold, the application provides a plastic part mold.

The application provides a plastic part die, which adopts the following technical scheme:

The plastic part mold comprises an upper mold and a lower mold, wherein a molding cavity is formed in one side, opposite to the upper mold, of the lower mold, a sliding cavity is formed in the lower mold, a sliding plate is slidably connected in the sliding cavity, the sliding direction of the sliding plate is in a vertical direction, a driving part is fixed on the sliding plate, the output end of the driving part is vertically downward, and the output end of the driving part is fixed with the lower mold; the sliding plate is provided with an ejector rod, the lower die is provided with an ejector hole for the ejector rod to pass through, and the ejector rod is used for ejecting the formed part.

Through adopting above-mentioned technical scheme, when ejecting the shaping spare, the driving piece starts, because the driving piece is fixed mutually with the sliding plate, the output of driving piece is fixed mutually with the lower mould, thereby the sliding plate begins to upwards remove in the slip intracavity when the driving piece starts, thereby drive the ejector pin on the sliding plate upwards remove with ejecting the shaping spare, thereby ejecting the shaping spare, this plastic part mould is through setting up the ejector pin on the sliding plate, rethread driving piece drives the sliding plate, thereby reach the purpose of ejecting the shaping spare, compare in the mode that an ejector pin was driven by a driving piece in the prior art, do not influence the ejecting shaping spare promptly, the configuration of reasonable reduction driving piece again, the cost of mould has been reduced.

Optionally, the upper die comprises a first die and a second die arranged on the first die; the upper die and the lower die are provided with fixing pieces, each fixing piece comprises a fixing plate and a fixing block, the first die is connected with a first fixing screw rod in a threaded manner, the first fixing screw rod is used for fixing the fixing plate on the first die, the second die is connected with a second fixing screw rod in a threaded manner, and the second fixing screw rod is used for fixing the fixing plate on the second die; the lower die is connected with a third fixing screw in a threaded manner, the third fixing screw is used for fixing the fixing block on the lower die, and the fixing block is used for propping the fixing plate on the lower die.

Through adopting above-mentioned technical scheme, set up fixed plate cooperation first fixing screw and the fixed first mould of second fixing screw and second mould, rethread fixed block and third fixing screw support the fixed plate tightly with fixed mould and lower mould on the lower mould for go up mould and lower mould stable after the compound die, the shaping of being convenient for.

Optionally, a positioning rod is arranged on the fixing plate, and a positioning hole is arranged on the upper die and is used for accommodating the positioning rod.

Through adopting above-mentioned technical scheme, set up the locating hole and supply the locating lever to hold, when installation first fixing screw and second fixing screw, the locating lever is fixed a position the fixed plate, is convenient for screw up first fixing screw and second fixing screw, does not need to be to the hole again.

Optionally, the fixed slot has been seted up to the lower mould, the fixed slot supplies the fixed plate to hold, be equipped with the joint groove on the fixed block, the joint groove supplies the fixed plate to hold, the fixed block supports the fixed plate tightly in the fixed slot.

Through adopting above-mentioned technical scheme, set up fixed slot and joint groove and supply the fixed plate to hold to support tight fixed plate through the fixed block on the lower mould, thereby fixed mould and lower mould.

Optionally, a guide post is arranged on the lower die, the length direction of the guide post is vertical, a guide hole is formed in the sliding plate, and the guide hole is used for accommodating the guide post.

Through adopting above-mentioned technical scheme, set up guide post direction sliding plate and remove, improve the stability that the sliding plate removed.

Optionally, a guide rod is arranged on the sliding plate, and a guide groove for accommodating the guide rod is formed in the lower die.

Through adopting above-mentioned technical scheme, the guide bar sets up on the sliding plate, has offered the guide way that supplies the guide bar to hold on the lower mould for the guide bar is guided by the guide way, thereby makes the removal of guide bar stable, thereby further improves the stability when the sliding plate removes.

Optionally, a positioning column is arranged on one side of the lower die, facing the upper die, and a positioning groove for accommodating the positioning column is arranged on one side of the upper die, facing the lower die.

Through adopting above-mentioned technical scheme, set up the constant head tank and supply the reference column to hold, make last mould and lower mould can accurate compound die, prevent to take place the deviation when the compound die.

Optionally, hanging rings are arranged on the upper die and the lower die.

By adopting the technical scheme, the lifting ring is arranged to facilitate the movement of the upper die or the lower die.

Optionally, the driving piece is an oil cylinder.

By adopting the technical scheme, the oil cylinder is arranged as the driving piece and can drive the sliding plate to move, and the oil cylinder has enough power, so that compared with common driving sources such as an air cylinder, the oil cylinder has moderate weight and enough power.

In summary, the present application includes at least one of the following beneficial technical effects:

1. When the formed part is ejected, the driving part is started, and the output end of the driving part is fixed with the sliding plate, so that the sliding plate starts to move upwards in the sliding cavity when the driving part is started, and the ejector rod on the sliding plate is driven to move upwards to eject the formed part, and the plastic part die is used for ejecting the formed part by arranging the ejector rod on the sliding plate and then driving the sliding plate through the driving part, so that the aim of ejecting the formed part is fulfilled;

2. The fixing plate is arranged to be matched with the first fixing screw rod and the second fixing screw rod to fix the first die and the second die, and then the fixing plate is abutted against the lower die through the fixing block and the third fixing screw rod to fix the upper die and the lower die, so that the upper die and the lower die are stable after die assembly, and a formed part is formed conveniently;

3. The guide post is arranged to guide the sliding plate to move, so that the stability of the movement of the sliding plate is improved; the guide rod and the guide groove are arranged, so that the guide rod is guided by the guide groove, and the stability of the sliding plate during movement is further improved.

Drawings

Fig. 1 is a schematic structural view of a plastic member in the related art.

Fig. 2 is a schematic diagram showing the overall structure of a plastic part mold according to an embodiment of the present application.

FIG. 3 is a schematic diagram showing the overall structure of a plastic part mold according to an embodiment of the present application

Fig. 4 is a schematic structural view of the top surface of the upper mold of the embodiment, mainly showing the reserved piece.

Reference numerals illustrate: 1. a plastic part body; 2. a preformed hole; 3. an upper die; 31. a first die; 32. a second die; 4. a lower die; 5. a sliding chamber; 6. a sliding plate; 7. a bolt; 8. a driving member; 9. an ejector rod; 10. an ejection hole; 11. a guide post; 12. a guide hole; 13. a guide rod; 14. a guide groove; 15. a fixing member; 151. a fixing plate; 152. a fixed block; 16. a first fixed screw; 17. a second fixed screw; 18. a third fixed screw; 19. a positioning rod; 21. a fixing groove; 22. a clamping groove; 23. a locking member; 231. a locking plate; 232. locking the screw; 24. a through hole; 25. a reserving piece; 26. a hanging ring; 27. positioning columns; 28. a fixing protrusion; 29. and a fixing groove.

Detailed Description

The application is described in further detail below with reference to fig. 2-4.

The embodiment of the application discloses a plastic part die. Referring to fig. 2 and 3, the plastic part mold comprises an upper mold 3 and a lower mold 4, a molding cavity (not shown in the figure) is formed on one side of the upper mold 3 opposite to the lower mold 4, a sliding cavity 5 is formed on the lower mold 4, a sliding plate 6 is slidably connected in the sliding cavity 5, the sliding direction of the sliding plate 6 is a vertical direction, a driving part 8 is fixed on the sliding plate 6 through a bolt 7, in the embodiment of the application, the driving part 8 is an oil cylinder, and the output end of the oil cylinder is fixed with the bottom end of the lower mold 4. The lower die 4 is integrally fixed with a fixing protrusion 28, the output end of the oil cylinder is provided with a fixing groove 29 for accommodating the fixing protrusion 28, and the fixing protrusion 28 is accommodated in the fixing groove 29 so that the output end of the oil cylinder is fixed with the lower die 4. Four oil cylinders are arranged, the oil cylinders are distributed on two sides of the sliding plate 6 in pairs, a plurality of ejector rods 9 are fixed on the top surface of the sliding plate 6, ejection holes 10 through which the ejector rods 9 penetrate are formed in the lower die 4, and the ejector rods 9 are used for ejecting formed parts. When the oil cylinder is started, the output end of the oil cylinder stretches downwards, so that the sliding plate 6 is driven to move upwards, and the ejector rod 9 on the sliding plate 6 ejects the formed part.

Referring to fig. 2 and 3, a guide post 11 is fixed on the lower die 4, the length direction of the guide post 11 is vertical, a guide hole 12 is formed in the sliding plate 6, and the guide hole 12 is used for accommodating the guide post 11. The slide plate 6 is fixed with a guide rod 13, and the lower die 4 is provided with a guide groove 14 for accommodating the guide rod 13.

Referring to fig. 2 and 3, the upper mold 3 includes a first mold 31 and a second mold 32 closely attached to the first mold 31, the upper mold 3 and the lower mold 4 are mounted with a fixing member 15, the fixing member 15 includes a fixing plate 151 and a fixing block 152, the first mold 31 is screw-coupled with a first fixing screw 16, the first fixing screw 16 fixes the fixing plate 151 to the first mold 31, and in the embodiment of the present application, the first fixing screw 16 is provided with four. The second die 32 is screwed with a second fixing screw 17, and the second fixing screw 17 fixes the fixing plate 151 to the second die 32, and in the embodiment of the present application, the second fixing screw 17 is provided with four. The lower die 4 is screwed with a third fixing screw 18, and the third fixing screw 18 fixes the fixing block 152 on the lower die 4, and in the embodiment of the present application, four third fixing screws 18 are provided. The fixing block 152 abuts the fixing plate 151 against the lower die 4.

Referring to fig. 2 and 3, a positioning rod 19 is fixed on the fixing plate 151, and a positioning hole is formed in the upper die 3 for accommodating the positioning rod 19.

Referring to fig. 2 and 3, the lower die 4 is provided with a fixing groove 21, the fixing groove 21 accommodates the fixing plate 151, the fixing block 152 is provided with a clamping groove 22 for accommodating the fixing plate 151, and the fixing block 152 abuts the fixing plate 151 in the fixing groove 21.

Referring to fig. 2 and 3, the upper mold 3 and the lower mold 4 are further provided with locking members 23, the locking members 23 include a locking plate 231 and two locking screws 232, two through holes 24 through which the locking screws 232 pass are formed in the locking plate 231, and the two locking screws 232 are respectively screwed with the second mold 32 and the lower mold 4 to fix the locking plate 231, thereby fixing the upper mold 3 and the lower mold 4, and further improving the stability of fixing the upper mold 3 and the lower mold 4.

Referring to fig. 2 and 4, a plurality of reservation members 25 are fixed on the top surface of the upper mold 3, and the reservation members 25 are used for occupying positions to reserve a plurality of reservation holes 2 (refer to fig. 1) on the forming member.

Referring to fig. 2, a hanging ring 26 is fixed to both the upper die 3 and the lower die 4.

Referring to fig. 2 and 4, a positioning column 27 is fixed to a side of the lower mold 4 facing the upper mold 3, and a positioning groove (not shown) for receiving the positioning column 27 is opened to a side of the upper mold 3 facing the lower mold 4.

The implementation principle of the plastic part die provided by the embodiment of the application is as follows: when the formed part is ejected, the driving part 8 is started, and the driving part 8 is fixed with the sliding plate 6, so that the sliding plate 6 starts to move upwards in the sliding cavity 5 when the driving part 8 is started, the ejector rods 9 on the sliding plate 6 are driven to move upwards to eject the formed part, and the formed part is ejected, and the plastic part die achieves the aim of ejecting the formed part by arranging a plurality of ejector rods 9 on the sliding plate 6 and then driving the sliding plate 6 through the driving part 8, and compared with the mode that one ejector rod 9 is driven by one driving part 8 in the prior art, the configuration of the driving part 8 is reasonably reduced, and the cost of the die is reduced; and the plastic part mold improves the stability of fixing the upper mold 3 and the lower mold 4 by installing the fixing member 15 and the locking member 23.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. The utility model provides a working of plastics mould, includes mould (3) and lower mould (4), mould cavity, its characterized in that have been seted up to the relative one side of mould (3) and lower mould (4): the lower die (4) is provided with a sliding cavity (5), a sliding plate (6) is slidably connected in the sliding cavity (5), the sliding direction of the sliding plate (6) is a vertical direction, a driving piece (8) is fixed on the sliding plate (6), the output end of the driving piece (8) is vertically downward, and the output end of the driving piece (8) is fixed with the lower die (4); an ejector rod (9) is arranged on the sliding plate (6), an ejector hole (10) for the ejector rod (9) to pass through is formed in the lower die (4), and the ejector rod (9) is used for ejecting a formed part; the upper die (3) comprises a first die (31) and a second die (32) arranged on the first die (31); the upper die (3) and the lower die (4) are provided with fixing pieces (15), the fixing pieces (15) comprise fixing plates (151) and fixing blocks (152), first fixing screws (16) are connected to the first die (31) in a threaded mode, the fixing plates (151) are fixed to the first die (31) through the first fixing screws (16), second fixing screws (17) are connected to the second die (32) in a threaded mode, and the fixing plates (151) are fixed to the second die (32) through the second fixing screws (17); the lower die (4) is connected with a third fixing screw (18) in a threaded mode, the fixing block (152) is fixed on the lower die (4) through the third fixing screw (18), and the fixing plate (151) is abutted to the lower die (4) through the fixing block (152).

2. A plastic part mold according to claim 1, wherein: the fixing plate (151) is provided with a locating rod (19), the upper die (3) is provided with a locating hole, and the locating hole is used for accommodating the locating rod (19).

3. A plastic part mold according to claim 1, wherein: the lower die (4) is provided with a fixing groove (21), the fixing groove (21) is used for accommodating a fixing plate (151), the fixing block (152) is provided with a clamping groove (22), the clamping groove (22) is used for accommodating the fixing plate (151), and the fixing block (152) is used for propping the fixing plate (151) in the fixing groove (21).

4. A plastic part mold according to claim 1, wherein: the lower die (4) is provided with a guide post (11), the length direction of the guide post (11) is in the vertical direction, the sliding plate (6) is provided with a guide hole (12), and the guide hole (12) is used for accommodating the guide post (11).

5. A plastic part mold according to claim 1, wherein: the sliding plate (6) is provided with a guide rod (13), and the lower die (4) is provided with a guide groove (14) for accommodating the guide rod (13).

6. A plastic part mold according to claim 1, wherein: one side of the lower die (4) facing the upper die (3) is provided with a positioning column (27), and one side of the upper die (3) facing the lower die (4) is provided with a positioning groove for accommodating the positioning column (27).

7. A plastic part mold according to claim 1, wherein: and hanging rings (26) are arranged on the upper die (3) and the lower die (4).

8. A plastic part mold according to claim 1, wherein: the driving piece (8) is an oil cylinder.