CN210148628U

CN210148628U - Injection molding die for processing rotating shaft of tablet personal computer stylus pen

Info

Publication number: CN210148628U
Application number: CN201920419392.3U
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: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-03-17
Anticipated expiration: 2029-03-29

Abstract

The utility model discloses an injection molding mold for processing a rotating shaft of a tablet personal computer stylus, wherein the rotating shaft is of a hollow structure, the molding mold comprises an upper mold component and a lower mold component, a pair of rotating shaft side molding molds which are oppositely arranged are arranged in a through groove formed by the surrounding of the notches of the upper mold core and the lower mold core, a push plate can be movably arranged in the notch of the lower mold core, and the push plate is connected with an ejection device; the cavity in the upper mold core, the arc-shaped notch of the rotating shaft side forming mold and the mold cavity surrounded by the push plate are matched with the outer surface of the rotating shaft; the push plate is internally provided with an insert pin which can slide relatively in a penetrating way, the lower end of the insert pin is fixedly arranged on the lower mold core, and the upper end of the insert pin extends into the mold cavity and is matched with the hollow structure of the rotating shaft. The utility model discloses a set up the push pedal and inlay the needle in last mold core and lower mold core to make the push pedal be connected with ejecting device, can conveniently realize the separation of pivot and mould, be favorable to realizing the industrialization mass production of pivot more.

Description

Injection molding die for processing rotating shaft of tablet personal computer stylus pen

Technical Field

The utility model belongs to the mould field especially relates to a mould is used in processing of panel computer writing pen pivot.

Background

The current processing mode of the tablet personal computer stylus pen rotating shaft comprises the technologies of laser cutting, machine tool processing or 3D printing and the like. The laser cutting cost is high, the machining precision of a machine tool is difficult to guarantee, the materials used by the 3D printing technology are limited, and common printing materials cannot meet the use requirements and are easy to damage.

The current processing mode of the tablet personal computer stylus pen rotating shaft has the problems of multiple processing procedures, long production period, incapability of ensuring precision, difficulty in mass production and the like.

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 panel computer pen pivot processing and use injection moulding mould, utilize this mould to produce the production and processing process that panel computer pen pivot can reduce panel computer pen pivot 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 machining a rotating shaft of a tablet personal computer stylus pen is of a hollow structure, a side hole is formed in the side face of the rotating shaft, the molding mold comprises an upper mold assembly and a lower mold assembly, the upper mold assembly sequentially comprises an upper mold plate, a runner stripper plate and an upper mold fixing plate from bottom to top, a glue injection port is formed in the center of the upper mold fixing plate and is fixed with the upper mold fixing plate through a positioning ring, and the lower end of the glue injection port is connected with a runner system; the lower die assembly sequentially comprises a lower die plate, a pair of oppositely arranged base plates and a lower die fixing plate from top to bottom, wherein the pair of oppositely arranged base plates are positioned at two sides of the lower die plate; a push plate can be movably arranged in the notch of the lower mold core and is connected with an ejection device; the cavity in the upper mold core, the arc-shaped notch of the rotating shaft side forming mold and the mold cavity surrounded by the push plate are matched with the outer surface of the rotating shaft; the push plate is internally provided with an insert pin which can slide relatively in a penetrating way, the lower end of the insert pin is fixedly arranged on the lower mold core, and the upper end of the insert pin extends into the mold cavity and is matched with the hollow structure of the rotating shaft.

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 molding mold, preferably, the communicating portion of the runner and the mold cavity is provided with a gate, an outlet of the gate is located on the upper surface of the rotating shaft, one rotating shaft is correspondingly provided with three gates, and the three gates are uniformly distributed on the upper surface of the rotating shaft. The research shows that the position distribution mode of the inlet gate outlets has certain influence on the quality of the rotating shaft, and based on the flow characteristic of the molding material, three inlet gates are preferably uniformly arranged on the upper surface of the rotating shaft.

In the above molding die, preferably, the upper surface of the push plate is provided with a hollow cylindrical frustum, a cavity in the upper die core, the arc-shaped notch of the rotating shaft side molding die and a die cavity defined by the upper surface of the cylindrical frustum are matched with the outer surface of the rotating shaft, and the upper end of the insert pin penetrates through the cylindrical frustum and extends into the die cavity. The upper surface of the push plate is provided with a hollow cylindrical frustum, so that the demoulding of the formed rotating shaft is facilitated.

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 ejector 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 is connected with the push plate.

In the above forming mold, preferably, the upper end of the ejector pin is a tenon structure, and the push plate is provided with a groove matched with the tenon structure. The ejector pins are connected with the push plate through the tenon-and-mortise structure, so that the ejector pins and the push plate can be conveniently disassembled, and if a certain part is damaged, only the corresponding part needs to be replaced.

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

1. the utility model discloses a set up the push pedal and inlay the needle in last mold core and lower mold core to make the push pedal be connected with ejecting device, several above-mentioned component interactions can conveniently realize the separation of pivot and mould, and the drawing of patterns flow that the pivot was added man-hour has wholly obtained the optimization, is favorable to realizing the industrialization mass production of pivot more.

2. The utility model provides a be equipped with pivot side moulded die among the forming die, can conveniently set up through-hole or blind hole, the specific pivot that is applicable to the side trompil in the pivot side.

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

4. The utility model discloses well utilize forming die to process to obtain the pivot, processing cycle is short, and the processing cost is low.

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 view of a forming die in the embodiment.

Fig. 2 is a front view of the molding die in the embodiment.

Fig. 3 is a sectional view of plane a-a in fig. 2.

Fig. 4 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. 5 is a schematic structural diagram of the hidden part of the assembly in fig. 1 (the hidden parts mainly include a lower die plate, a lower die core, an upper die plate, an upper die core, a runner stripper plate, and an upper die fixing plate).

Fig. 6 is a schematic view of a connection structure of the ejection device, the runner system, the push plate and the insert pin in the embodiment.

FIG. 7 is an exploded view of the runner system, the thimble, the lateral forming die of the rotating shaft, the push plate and the insert pin in the embodiment.

Illustration of the drawings:

1. a rotating shaft; 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 side surface of the rotating shaft; 13. pushing the plate; 14. inserting a needle; 15. a main flow channel; 16. a shunt channel; 18. a cylindrical frustum; 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. 1-7, in the injection molding mold for processing the rotating shaft of the tablet personal computer stylus pen of the embodiment, the rotating shaft 1 is of a hollow structure, a side hole is formed in a side surface of the rotating shaft 1, the molding mold comprises an upper mold assembly and a lower mold assembly, 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 a runner system is connected to; the lower die component 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 and the lower die fixing plate 9 are positioned at two sides of the lower die plate 7; a push plate 13 can also be movably arranged in the notch of the lower mold core 11, and the push plate 13 is connected with an ejection device; a cavity in the upper mold core 10, an arc-shaped notch of the rotating shaft side forming mold 12 and a mold cavity enclosed by the push plate 13 are matched with the outer surface of the rotating shaft 1; the push plate 13 is provided with an insert pin 14 which can slide relatively, the lower end of the insert pin 14 is fixedly arranged on the lower mold core 11, and the upper end extends into the mold cavity and is matched with the hollow structure of the rotating shaft 1.

In this embodiment, the runner system includes main runner 15 and a plurality of subchannel 16, and main runner 15 communicates with injecting glue mouth 5, and subchannel 16's one end and main runner 15 intercommunication, the other end and die cavity intercommunication.

In this embodiment, a sprue is arranged at a communication position of the runner 16 and the mold cavity, an outlet of the sprue is located on the upper surface of the rotating shaft 1, three sprues are correspondingly arranged on one rotating shaft 1, and the three sprues are uniformly distributed on the upper surface of the rotating shaft 1.

In this embodiment, the upper surface of the push plate 13 is provided with a hollow cylindrical frustum 18, a cavity in the upper mold core 10, an arc-shaped notch of the rotating shaft side forming die 12, and a mold cavity surrounded by the upper surface of the cylindrical frustum 18 are matched with the outer surface of the rotating shaft 1, and the upper end of the insert pin 14 passes through the cylindrical frustum 18 and extends into the mold cavity.

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 is connected with the push plate 13.

In this embodiment, the upper end of the thimble 23 is a tenon structure, and the push plate 13 is provided with a groove matched with the tenon structure.

In this embodiment, the mold material passes through the runner system from the glue injection port 5 and then enters the mold cavity, and when the mold cavity is completely filled, the mold cavity is automatically maintained to compact the product, and then the upper mold core 10 and the lower mold core 11 are separated, and due to the existence of the push plate 13, the insert pin 14 and the ejection device, the rotating shaft 1 and the forming mold can be separated, and then the next injection molding is performed, so that the next cycle work can be performed, and the mass production can be realized, and the 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 machining a rotating shaft of a tablet personal computer stylus pen is characterized in that the rotating shaft (1) is of a hollow structure, a side hole is formed in the side face of the rotating shaft (1), the molding mold comprises an upper mold assembly and a lower mold assembly, 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 component sequentially comprises a lower die plate (7), a pair of oppositely arranged backing plates (8) and a lower die fixing plate (9) which are positioned at two sides of the lower die plate (7) from top to bottom, and an ejection device is arranged between the pair of oppositely arranged backing plates (8) on the lower die fixing plate (9), and is characterized in that an upper die core (10) with a notch is arranged in the upper die plate (2), a cavity is arranged in the notch of the upper die core (10), a lower die core (11) with a notch is arranged in the lower die plate (7), a pair of oppositely arranged rotating shaft side forming dies (12) are arranged in a through groove which is enclosed by the notches of the upper die core (10) and the lower die core (11), an arc-shaped notch is arranged at the end part of each rotating shaft side forming die (12), and a bulge for forming a side hole is; a push plate (13) can be movably arranged in the notch of the lower mold core (11), and the push plate (13) is connected with an ejection device; a cavity in the upper mold core (10), an arc-shaped notch of the rotating shaft side forming mold (12) and a mold cavity enclosed by the push plate (13) are matched with the outer surface of the rotating shaft (1); the push plate (13) is internally provided with an insert pin (14) which can slide relatively in a penetrating way, the lower end of the insert pin (14) is fixedly arranged on the lower mold core (11), and the upper end of the insert pin extends into the mold cavity and is matched with the hollow structure of the rotating shaft (1).

2. The injection molding mold for machining a rotating shaft of a tablet personal computer stylus according to claim 1, wherein the runner system comprises a main runner (15) and a plurality of sub-runners (16), the main runner (15) is communicated with the glue injection port (5), one end of each sub-runner (16) is communicated with the main runner (15), and the other end of each sub-runner is communicated with the mold cavity.

3. The injection molding die for machining the rotating shaft of the tablet personal computer stylus pen as claimed in claim 2, wherein a gate is arranged at a position where the runner (16) is communicated with the die cavity, an outlet of the gate is located on the upper surface of the rotating shaft (1), three gates are correspondingly arranged on one rotating shaft (1), and the three gates are uniformly distributed on the upper surface of the rotating shaft (1).

4. The injection molding die for machining the rotating shaft of the tablet personal computer stylus pen as claimed in any one of claims 1 to 3, wherein the upper surface of the push plate (13) is provided with a hollow cylindrical frustum (18), a cavity in the upper die core (10), an arc-shaped notch of the rotating shaft side forming die (12) and a die cavity defined by the upper surface of the cylindrical frustum (18) are matched with the outer surface of the rotating shaft (1), and the upper end of the insert pin (14) penetrates through the cylindrical frustum (18) and extends into the die cavity.

5. The injection molding die for machining a rotating shaft of a tablet personal computer stylus according to any one of claims 1 to 3, wherein the upper die assembly is provided with guide posts (19), and the lower die assembly is provided with guide post grooves (20) matched with the guide posts (19) to ensure that the upper die assembly is matched with the lower die assembly.

6. The injection molding die for machining the rotating shaft of the tablet personal computer stylus pen according to any one of claims 1 to 3, wherein the ejection device comprises an ejector pin push plate (21), an ejector pin panel (22) and an ejector pin (23), the ejector pin push plate (21) is arranged on the lower die fixing plate (9), the ejector pin panel (22) is arranged on the ejector pin push plate (21), the ejector pin (23) is arranged on the ejector pin panel (22), and the ejector pin (23) movably penetrates through the lower die fixing plate (9) and the lower die core (11) and is connected with the push plate (13).

7. The injection molding die for machining the rotating shaft of the tablet personal computer stylus pen as claimed in claim 6, wherein the upper end of the ejector pin (23) is of a tenon structure, and the push plate (13) is provided with a groove matched with the tenon structure.