CN210148601U

CN210148601U - Injection molding die for processing arc-shaped sleeve

Info

Publication number: CN210148601U
Application number: CN201920452533.1U
Authority: CN
Inventors: 谢卫民
Original assignee: Hunan Minxin New Material Ltd By Share Ltd
Current assignee: Hunan Minxin New Material Ltd By Share Ltd
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2020-03-17
Anticipated expiration: 2029-04-04

Abstract

The utility model discloses an injection molding mold for processing an arc-shaped sleeve, which comprises an upper mold component and a lower mold component, wherein the upper mold component sequentially comprises an upper mold plate, a flow passage stripping plate and an upper mold fixing plate from bottom to top; the lower die assembly sequentially comprises a lower die plate, a base plate and a lower die fixing plate from top to bottom; the forming die is characterized in that an upper die core with a cavity is arranged in the upper die plate, a lower die core with a cavity is arranged in the lower die plate, a die cavity formed by the cavity in the upper die core and the cavity in the lower die core is matched with the shape of the arc-shaped sleeve, notches are further formed in the upper die core and the lower die core, and an auxiliary forming device is arranged in each notch. The utility model discloses a set up supplementary forming device in the notch of last mold core and lower mold core, supplementary forming device's shaping post extensible is used for shaping arc sleeve's inner wall in to the die cavity, can realize the processing of arc sleeve inner wall easily, has solved the arc sleeve and has been difficult to process, be difficult to the difficult problem of drawing of patterns.

Description

Injection molding die for processing arc-shaped sleeve

Technical Field

The utility model belongs to the mould field especially relates to a mould is used in arc sleeve processing.

Background

Sleeves are a common item, often found in everyday life. The processing mode of the straight sleeve is simple, and the processing mode is machine tool processing, mold casting and the like. The arc sleeve is a special form's sleeve, and the inner ring of arc sleeve is not cylindric, and the arc sleeve has certain radian, and current straight telescopic processing mode is difficult to be used for the arc sleeve, and the bright relevant report that has the telescopic processing mode of arc among the prior art, even if have also have the difficult problems such as processing cycle length, the manufacturing procedure is various, be difficult to mass production.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome not enough and the defect mentioned in the above background art, provide an injection moulding mould is used in arc sleeve processing, utilize this mould production arc sleeve can reduce arc sleeve's production manufacturing procedure greatly, have advantages such as processing cycle is short, the precision is high, easily mass production. In order to solve the technical problem, the utility model provides a technical scheme does:

an injection molding mold for processing an arc-shaped sleeve comprises an upper mold assembly and a lower mold assembly, wherein the upper mold assembly sequentially comprises an upper mold plate, a flow channel stripper plate and an upper mold fixing plate from bottom to top; the lower die assembly sequentially comprises a lower die plate, a pair of oppositely arranged backing plates and a lower die fixing plate from top to bottom, wherein the backing plates are positioned on two sides of the lower die plate; an upper mold core with a cavity is arranged in the upper template, a lower mold core with a cavity is arranged in the lower template, a mold cavity defined by the cavity in the upper mold core and the cavity in the lower mold core is matched with the shape of the arc-shaped sleeve, notches are also arranged in the upper mold core and the lower mold core, and an auxiliary forming device is arranged in the notches; the auxiliary forming device comprises a forming column and an arc sliding block, one end of the forming column is connected with the arc sliding block, the other end of the forming column extends into the die cavity and is used for forming the inner wall of the arc sleeve, and the shape of one end, extending to the die cavity, of the forming column is matched with the shape of the inner wall of the arc sleeve; the notch is the arc notch, the appearance of circular arc slider and the appearance phase-match of arc notch, just the radius R1 that the arc notch corresponds the circular arc is the same with the radius R2 that the arc sleeve inner wall corresponds the circular arc.

Among the above-mentioned forming die, the radius R1 that the arc notch corresponds the circular arc is the same with the radius R2 that the arc sleeve inner wall corresponds the circular arc, guarantees promptly that the radius that these two arc passageways of arc notch and arc sleeve inner wall correspond is the same, and the back mold of the shaping post that can be convenient for of above-mentioned mode of setting slides more smoothly.

In the above molding mold, preferably, the runner system includes a main runner and a plurality of sub-runners, the main runner is communicated with the glue injection port, one end of the sub-runner is communicated with the main runner, and the other end of the sub-runner is communicated with the mold cavity.

In the above forming mold, preferably, the upper mold core and the lower mold core are provided with cooling water channels therein.

In the above forming mold, preferably, the upper mold assembly is provided with a guide pillar, and the lower mold assembly is provided with a guide pillar groove matched with the guide pillar to ensure that the upper mold assembly is matched with the lower mold assembly.

In the above molding die, preferably, the ejection device includes a thimble push plate, a thimble panel and a thimble, the thimble push plate is disposed on the lower die fixing plate, the thimble panel is disposed on the thimble push plate, the thimble is disposed on the thimble panel, and the thimble is movable to pass through the lower die fixing plate, the lower die core and extend to the die cavity.

In the above forming mold, preferably, a mold withdrawing mechanism for driving the arc sliding block to slide along the notch is arranged around the upper mold core and the lower mold core.

Among the above-mentioned forming die, supplementary forming device can set up a plurality ofly, if the telescopic other end of arc has special demand, when the inner wall in different apertures of needs shaping, can establish a supplementary forming device again at the telescopic other end of arc.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a set up supplementary forming device in the notch of last mold core and lower mold core, supplementary forming device's shaping post extensible is used for shaping arc sleeve's inner wall in to the die cavity, can realize the processing of arc sleeve inner wall easily, has solved the arc sleeve and has been difficult to process, be difficult to the difficult problem of drawing of patterns.

2. The utility model provides a forming die has simple structure, and the runner system arranges rationally, advantages such as convenient to use.

3. The utility model discloses well utilize forming die to process the arc sleeve and have that processing cycle is short, and the processing cost is low, easily realizes advantages such as mass production.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an injection molding mold according to an embodiment.

Fig. 2 is a schematic structural diagram of the assembly of fig. 1 after a part of the assembly is hidden (the hidden parts mainly include an upper die plate, a runner stripper plate and an upper die fixing plate).

Fig. 3 is a schematic structural diagram of the hidden part of the assembly in fig. 1 (the hidden parts mainly include a lower template, an upper template, a runner stripper plate and an upper fixing plate).

FIG. 4 is a schematic view of a connection structure of the auxiliary molding device, the upper mold core, the lower mold core and the ejector pin in the embodiment.

Fig. 5 is a schematic structural view of fig. 4 after the upper mold core is hidden.

Fig. 6 is a top view of fig. 5.

Fig. 7 is an exploded view of fig. 5.

Illustration of the drawings:

1. an arc-shaped sleeve; 2. mounting a template; 3. a runner stripper plate; 4. an upper die fixing plate; 5. a glue injection port; 6. a positioning ring; 7. a lower template; 8. a base plate; 9. a lower die fixing plate; 10. an upper mold core; 11. a lower mold core; 12. forming a column; 13. a circular arc slider; 14. a notch; 15. a mold stripping mechanism; 19. a guide post; 20. a guide post groove; 21. a thimble push plate; 22. a thimble panel; 23. and (4) a thimble.

Detailed Description

To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below.

Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.

Example (b):

as shown in fig. 1 to 7, in the injection molding mold for processing the arc-shaped sleeve of the present embodiment, the molding mold includes an upper mold assembly and a lower mold assembly, the upper mold assembly sequentially includes, from bottom to top, an upper mold plate 2, a runner stripper plate 3 and an upper mold fixing plate 4, a glue injection port 5 is disposed in the center of the upper mold fixing plate 4, the glue injection port 5 is fixed to the upper mold fixing plate 4 through a positioning ring 6, and the lower end of the glue injection port 5 is connected to a runner system; the lower die assembly sequentially comprises a lower die plate 7, a pair of oppositely arranged backing plates 8 and a lower die fixing plate 9 from top to bottom, wherein the backing plates 8 are positioned on two sides of the lower die plate 7; an upper die core 10 with a cavity is arranged in the upper die plate 2, a lower die core 11 with a cavity is arranged in the lower die plate 7, a die cavity defined by the cavity in the upper die core 10 and the cavity in the lower die core 11 is matched with the shape of the arc-shaped sleeve 1, notches 14 are also arranged in the upper die core 10 and the lower die core 11, and auxiliary forming devices are arranged in the notches 14; the auxiliary forming device comprises a forming column 12 and an arc sliding block 13, one end of the forming column 12 is connected with the arc sliding block 13, the other end of the forming column extends into the die cavity to form the inner wall of the arc sleeve 1, and the shape of one end, extending to the die cavity, of the forming column 12 is matched with the shape of the inner wall of the arc sleeve 1; the notch 14 is an arc-shaped notch, the shape of the arc-shaped slider 13 is matched with that of the arc-shaped notch, and the radius R1 of the arc corresponding to the arc-shaped notch is the same as the radius R2 of the arc corresponding to the inner wall of the arc-shaped sleeve 1.

In this embodiment, the runner system includes sprue and a plurality of subchannel, sprue and injecting glue mouth 5 intercommunication, subchannel's one end and sprue intercommunication, the other end and die cavity intercommunication.

In this embodiment, the upper mold core 10 and the lower mold core 11 are provided with cooling water passages.

In this embodiment, the upper die assembly is provided with a guide pillar 19, and the lower die assembly is provided with a guide pillar groove 20 which is matched with the guide pillar 19 to ensure that the upper die assembly is matched with the lower die assembly.

In this embodiment, the ejection device includes a thimble push plate 21, a thimble panel 22 and a thimble 23, the thimble push plate 21 is disposed on the lower mold fixing plate 9, the thimble panel 22 is disposed on the thimble push plate 21, the thimble 23 is disposed on the thimble panel 22, and the thimble 23 is movable to pass through the lower mold fixing plate 9 and the lower mold core 11 and extend into the mold cavity.

In this embodiment, a mold stripping mechanism 15 for driving the arc slider 13 to slide along the notch 14 is disposed around the upper mold core 10 and the lower mold core 11.

In this embodiment, can process two arc sleeve 1 simultaneously in one set of forming die, so be provided with two sets of auxiliary forming device, in addition, for the demand in the special aperture of the 1 other end of arc sleeve, still add at the other end of arc sleeve 1 in this embodiment and be equipped with auxiliary forming device.

In this embodiment, the mould material gets into the die cavity again after 5 through runner systems from the injecting glue mouth, waits that the die cavity is filled up completely, and automatic pressurize makes the product closely knit, later will go up die core 10 and die core 11 separately down, and auxiliary forming device withdraws from, because ejector's existence, can make ARC sleeve 1 and forming die separation, carries out injection moulding next time again, and cycle work in proper order can realize mass production, and production efficiency is high.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An injection molding mold for processing an arc-shaped sleeve comprises an upper mold assembly and a lower mold assembly, wherein the upper mold assembly sequentially comprises an upper mold plate (2), a runner stripper plate (3) and an upper mold fixing plate (4) from bottom to top, a glue injection port (5) is formed in the center of the upper mold fixing plate (4), the glue injection port (5) is fixed with the upper mold fixing plate (4) through a positioning ring (6), and the lower end of the glue injection port (5) is connected with a runner system; the lower die assembly sequentially comprises a lower die plate (7), a pair of oppositely arranged backing plates (8) and a lower die fixing plate (9) from top to bottom, wherein the backing plates (8) are positioned on two sides of the lower die plate (7), and an ejection device is arranged between the pair of oppositely arranged backing plates (8) on the lower die fixing plate (9); the forming die is characterized in that an upper die core (10) with a cavity is arranged in the upper die plate (2), a lower die core (11) with a cavity is arranged in the lower die plate (7), a die cavity defined by the cavity in the upper die core (10) and the cavity in the lower die core (11) is matched with the shape of the arc-shaped sleeve (1), notches (14) are further arranged in the upper die core (10) and the lower die core (11), and an auxiliary forming device is arranged in the notches (14); the auxiliary forming device comprises a forming column (12) and an arc sliding block (13), one end of the forming column (12) is connected with the arc sliding block (13), the other end of the forming column extends into the die cavity and is used for forming the inner wall of the arc sleeve (1), and the shape of one end, extending to the die cavity, of the forming column (12) is matched with the shape of the inner wall of the arc sleeve (1); notch (14) are the arc notch, the appearance of circular arc slider (13) and the appearance phase-match of arc notch, just the radius R1 that the arc notch corresponds the circular arc is the same with the radius R2 that the arc sleeve (1) inner wall corresponds the circular arc.

2. Injection moulding mould according to claim 1, characterized in that the runner system comprises a main runner which communicates with the filling compound opening (5) and a plurality of sub-runners which communicate with the mould cavity at one end.

3. The injection molding die according to claim 1, wherein a cooling water flow passage is provided in the upper die core (10) and the lower die core (11).

4. An injection mould according to any one of claims 1-3, characterised in that the upper mould assembly is provided with guide posts (19) and the lower mould assembly is provided with guide post slots (20) which mate with the guide posts (19) to secure the upper and lower mould assemblies in cooperation.

5. The injection molding mold according to any one of claims 1 to 3, wherein the ejector device comprises an ejector pin push plate (21), an ejector pin plate (22) and ejector pins (23), the ejector pin push plate (21) is disposed on the lower mold fixing plate (9), the ejector pin plate (22) is disposed on the ejector pin push plate (21), the ejector pins (23) are disposed on the ejector pin plate (22), and the ejector pins (23) movably penetrate through the lower mold fixing plate (9) and the lower mold core (11) and extend into the mold cavity.

6. The injection molding die according to any one of claims 1 to 3, wherein a die withdrawing mechanism (15) for driving the arc slider (13) to slide along the notch (14) is arranged around the upper die core (10) and the lower die core (11).