CN219522913U

CN219522913U - Exhaust structure of injection mold

Info

Publication number: CN219522913U
Application number: CN202320059450.2U
Authority: CN
Inventors: 张戴锋; 牟来斌; 王晶霞; 罗静
Original assignee: Shenzhen Chuanghuafeng Mould Electronics Co ltd
Current assignee: Shenzhen Chuanghuafeng Mould Electronics Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-08-15
Anticipated expiration: 2033-01-09

Abstract

The utility model provides an exhaust structure of an injection mold, which comprises an exhaust mechanism, wherein the exhaust mechanism comprises a bottom plate, an upper die holder, a rectangular pipe, a round rod and a vertical pipe; the upper die holder is arranged above the bottom plate, the top of the upper die holder is communicated with and fixed with an injection molding pipe, and two first rectangular holes are formed in the top of the upper die holder. According to the utility model, the electric telescopic rod is driven to move downwards to contact with the top of the bottom plate, the melted injection molding raw material is discharged into a gap between the upper die holder and the lower die holder through the injection molding pipe, the sliding block drives the round rod to move upwards to stretch the spring, air in the gap is discharged through the rectangular pipe, the transverse pipe and the vertical pipe, and the electric telescopic rod is reversely started to release the die, so that the injection mold has an exhaust function, the defects of poor filling and appearance damage caused by incapability of smoothly discharging the air are avoided, and the influence on the quality of a finished product of a back shell of the mobile phone is reduced.

Description

Exhaust structure of injection mold

Technical Field

The utility model relates to an exhaust structure, in particular to an injection mold exhaust structure, and belongs to the technical field of injection molds.

Background

The mobile phone is generally called a mobile phone or a wireless phone, and is generally called a mobile phone or a casing, and is an ornament for protecting or decorating the appearance of the mobile phone, along with the rapid development of the technology level, the industry of technology cosmetology is newly developed as a new industry, the fashion IT brand is diversified along with the diversified development of the market, aiming at the increase of the brand and the function of the mobile phone, and the injection molding is needed through an injection mold in the production process of the back shell of the mobile phone.

In the injection molding process of the existing mobile phone back shell injection mold, more or less air in the mold cavity of the injection mold and moisture contained in injection molding raw materials evaporate at high temperature or the plastic is decomposed at high temperature, so that gas exists in the mold cavity, and the defect of poor filling and appearance damage can be caused by the fact that gas cannot be smoothly discharged, and the quality of a finished product of the mobile phone back shell is affected.

Disclosure of Invention

In view of the foregoing, it is desirable to provide an exhaust structure of an injection mold, which solves or alleviates the technical problems existing in the prior art, and at least provides an advantageous choice.

The technical scheme of the embodiment of the utility model is realized as follows: an exhaust structure of an injection mold comprises an exhaust mechanism, wherein the exhaust mechanism comprises a bottom plate, an upper die holder, a rectangular pipe, a round rod and a vertical pipe;

the upper die holder set up in the top of bottom plate, the top intercommunication of upper die holder is fixed with the pipe of moulding plastics, two first rectangular holes have been seted up at the top of upper die holder, rectangular pipe slip cap locates the inboard of corresponding first rectangular hole, the inboard sliding connection of rectangular pipe has the slider, round bar fixed mounting is in correspondence the top of slider, two the second rectangular hole has all been seted up on the one side inner wall that the rectangular pipe kept away from each other, sliding connection has the horizontal pipe in the second rectangular hole, the standpipe intercommunication is fixed at the top of corresponding horizontal pipe, the top fixedly connected with die holder of bottom plate.

Further preferably, the top end of the round rod is fixedly connected with a round block, and the top of the rectangular tube is fixedly connected with a transverse block.

Further preferably, the transverse block is slidably sleeved on the outer side of the corresponding round rod, and the same spring is fixedly connected between the bottom of the round block and the top of the corresponding transverse block.

Further preferably, the spring is movably sleeved on the outer side of the corresponding round rod, and the front side and the rear side of the rectangular tube are fixedly connected with first rectangular blocks.

Further preferably, the first rectangular block is fixedly connected with the upper die base through a first bolt in a threaded manner, and the top of the transverse tube is fixedly connected with a second rectangular block.

Further preferably, the second rectangular block is in threaded connection with the corresponding rectangular pipe through a second bolt, and the top of the bottom plate is fixedly connected with a positioning rod.

Further preferably, moving blocks are fixedly connected to two sides of the upper die base, and the moving blocks are slidably sleeved on the outer sides of the corresponding positioning rods.

Further preferably, a supporting mechanism is arranged above the exhaust mechanism, and the supporting mechanism comprises a side

A plate and a cross plate;

two side plates are fixedly arranged at the top of the bottom plate, and a transverse plate is fixedly arranged at two side plates

The top of curb plate, the bottom fixedly connected with of diaphragm two electric telescopic handle, electric telescopic handle's output shaft tip with the top fixed connection of upper die base.

By adopting the technical scheme, the embodiment of the utility model has the following advantages:

the electric telescopic rod of the utility model works to drive the upper die holder to move downwards to contact with the top of the bottom plate, the melted injection molding raw material is discharged into a gap between the upper die holder and the lower die holder through the injection molding pipe, and the sliding block drives the circle

The rod moves upwards to stretch the spring, air in the gap is discharged through the rectangular pipe, the transverse pipe and the vertical pipe, the electric telescopic rod is started reversely, and demolding can be performed, so that the injection mold has an exhaust function, the defect that poor filling and appearance damage are caused by the fact that gas cannot be smoothly discharged is avoided, and the influence on the quality of a mobile phone back shell finished product is reduced.

The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. Removing the upper part

In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will become apparent by reference to the drawings and the following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front perspective view of the present utility model;

FIG. 2 is a bottom perspective view of the present utility model;

FIG. 3 is an enlarged view of the structure of area A of FIG. 1;

fig. 4 is a bottom perspective view of the connection of the rectangular tube and the slider in the present utility model.

Reference numerals: 1. an exhaust mechanism; 2. a bottom plate; 3. an upper die holder; 4. injection molding a tube; 5. a first rectangular hole; 6. a rectangular tube; 7. a slide block; 8. a round bar; 9. a second rectangular hole; 10. a transverse tube; 11. a standpipe; 12. a circular block; 13. a transverse block; 14. a spring; 15. a first rectangular block; 16. a first bolt; 17. a second rectangular block; 18. a second bolt; 19. a lower die holder; 20. a positioning rod; 21. a moving block; 22. a support mechanism; 23. a side plate; 24. a cross plate; 25. an electric telescopic rod.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art

It will be appreciated that the described embodiments may be modified in various different ways without departing from the spirit or scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive

Sex.

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 4, an embodiment of the present utility model provides an exhaust structure of an injection mold, which comprises an exhaust mechanism 1, wherein the exhaust mechanism 1 comprises a bottom plate 2, an upper die holder 3, a rectangular pipe 6, a round rod 8 and a vertical pipe 11; the upper die holder 3 is arranged above the bottom plate 2, the top of the upper die holder 3 is communicated with and fixed with an injection molding pipe 4, and the upper die holder is provided with

Two first rectangular holes 5 are formed in the top of the die holder 3, the rectangular pipe 6 is slidably sleeved on the inner side of the corresponding first rectangular hole 5, the inner side of the rectangular pipe 6 is slidably connected with the sliding block 7, the round rod 8 is fixedly mounted on the top of the corresponding sliding block 7, the second rectangular holes 9 are formed in the inner walls of one sides of the two rectangular pipes 6 which are far away from each other, the transverse pipe 10 is slidably connected in the second rectangular holes 9, the vertical pipes 11 are communicated and fixed on the top of the corresponding transverse pipe 10, the lower die holder 19 is fixedly connected to the top of the bottom plate 2, the round rod 8 is fixedly connected with the round block 12, the top of the rectangular pipe 6 is fixedly connected with the transverse block 13, the transverse block 13 is slidably sleeved on the outer side of the corresponding round rod 8, the same spring 14 is fixedly connected between the bottom of the round block 12 and the top of the corresponding transverse block 13, the sliding block 7 is subjected to internal air extrusion force which is continuously increased, and the sliding block 7 slides in the corresponding rectangular pipe 6.

In one embodiment, the spring 14 is movably sleeved on the outer side of the corresponding round rod 8, the front side and the rear side of the rectangular tube 6 are fixedly connected with the first rectangular block 15, the first rectangular block 15 is fixedly connected with the upper die holder 3 through the first bolt 16, the top of the transverse tube 10 is fixedly connected with the second rectangular block 17, the second rectangular block 17 is fixedly connected with the corresponding rectangular tube 6 through the second bolt 18, the top of the bottom plate 2 is fixedly connected with the positioning rod 20, both sides of the upper die holder 3 are fixedly connected with the moving blocks 21, the moving blocks 21 are slidably sleeved on the outer side of the corresponding positioning rod 20, at the moment, air in a gap enters the rectangular tube 6, the rectangular tube 6 discharges the air into the transverse tube 10, the transverse tube 10 discharges the air into the vertical tube 11, and the vertical tube 11 discharges the air.

In one embodiment, a support mechanism 22 is provided above the exhaust mechanism 1, the support mechanism 22 comprising sides

A plate 23 and a cross plate 24;

the two side plates 23 are fixedly arranged at the top of the bottom plate 2, the transverse plate 24 is fixedly arranged at the top of the two side plates 23, the bottom of the transverse plate 24 is fixedly connected with two electric telescopic rods 25, the end parts of output shafts of the electric telescopic rods 25 are fixedly connected with the top of the upper die holder 3, the upper die holder 3 drives the two moving blocks 21 to move, and the moving blocks 21 slide outside the corresponding positioning rods 20.

The utility model works when in work: when the electric telescopic rod is used, the electric telescopic rod 25 is started in the forward direction, the electric telescopic rod 25 works to drive the upper die holder 3 to move downwards, the upper die holder 3 drives the two moving blocks 21 to move, and the moving blocks 21 are aligned

The outside of the corresponding locating rod 20 slides, the bottom of the upper die holder 3 contacts with the top of the bottom plate 2, the melted injection molding raw material is discharged into a gap between the upper die holder 3 and the lower die holder 19 through the injection molding pipe 4, when air in the gap is continuously compressed through the injection molding process, the sliding block 7 receives the extrusion force of continuously increasing internal air pressure, the sliding block 7 slides in the corresponding rectangular pipe 6, the sliding block 7 drives the corresponding round rod 8 to move upwards, the round rod 8 drives the corresponding round block 12 to move, and the round block 12 ejects the corresponding round block in the moving process

The spring 14 stretches, at this time, the air in the gap enters the rectangular tube 6, the rectangular tube 6 discharges the air into the transverse tube 10, the transverse tube 10 discharges the air into the vertical tube 11, the vertical tube 11 discharges the air, and when the injection molding is performed

When the material enters the rectangular pipe 6 or the transverse pipe 10 and needs to be cleaned, the first bolt 16 and the second bolt 18 are reversely rotated, the rectangular pipe 6 or the transverse pipe 10 can be taken down for cleaning, and when demoulding is needed, the electric telescopic rod 25 is reversely started, so that the upper die holder 3 moves upwards, and at the moment, demoulding can be performed.

The foregoing is merely illustrative of the embodiments of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will be able to easily understand the present utility model,

various changes or substitutions can be readily envisioned, and these are intended to be encompassed within the scope of the present utility model.

Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an injection mold exhaust structure, includes exhaust mechanism (1), its characterized in that: the exhaust mechanism (1) comprises a bottom plate (2), an upper die holder (3), a rectangular pipe (6), a round rod (8) and a vertical pipe (11);

the upper die holder (3) set up in the top of bottom plate (2), the top intercommunication of upper die holder (3) is fixed with injection molding pipe (4), two first rectangular holes (5) have been seted up at the top of upper die holder (3), rectangular pipe (6) slip cap is located corresponding the inboard of first rectangular hole (5), the inboard sliding connection of rectangular pipe (6) has slider (7), round bar (8) fixed mounting in the top of slider (7) that corresponds, two second rectangular hole (9) have all been seted up on the one side inner wall that rectangular pipe (6) kept away from each other, second rectangular hole (9) sliding connection have horizontal pipe (10), standpipe (11) intercommunication is fixed in the top of corresponding horizontal pipe (10), the top fixedly connected with die holder (19) of bottom plate (2).

2. The exhaust structure of an injection mold according to claim 1, wherein: the top of round rod (8) fixedly connected with circular piece (12), the top fixedly connected with transverse piece (13) of rectangular pipe (6).

3. An injection mold vent structure as claimed in claim 2, wherein: the transverse block (13) is slidably sleeved on the outer side of the corresponding round rod (8), and the same spring (14) is fixedly connected between the bottom of the round block (12) and the top of the corresponding transverse block (13).

4. An injection mold vent structure according to claim 3, wherein: the springs (14) are movably sleeved on the outer sides of the corresponding round rods (8), and the front sides and the rear sides of the rectangular pipes (6) are fixedly connected with first rectangular blocks (15).

5. The exhaust structure of an injection mold according to claim 4, wherein: the first rectangular block (15) is fixedly connected with the upper die holder (3) through a first bolt (16), and the top of the transverse tube (10) is fixedly connected with a second rectangular block (17).

6. The exhaust structure of an injection mold according to claim 5, wherein: the second rectangular block (17) is in threaded connection with the corresponding rectangular pipe (6) through a second bolt (18), and the top of the bottom plate (2) is fixedly connected with a positioning rod (20).

7. The exhaust structure of an injection mold according to claim 6, wherein: both sides of the upper die holder (3) are fixedly connected with moving blocks (21), and the moving blocks (21) are slidably sleeved on the outer sides of the corresponding positioning rods (20).

8. The exhaust structure of an injection mold according to claim 7, wherein: a supporting mechanism (22) is arranged above the exhaust mechanism (1), and the supporting mechanism (22) comprises a side plate (23) and a transverse plate (24);

the two side plates (23) are fixedly arranged at the top of the bottom plate (2), the transverse plate (24) is fixedly arranged at the top of the two side plates (23), the bottom of the transverse plate (24) is fixedly connected with two electric telescopic rods (25), and the end parts of output shafts of the electric telescopic rods (25) are fixedly connected with the top of the upper die holder (3).