CN214188180U - Air blowing mechanism on core of injection mold - Google Patents
Air blowing mechanism on core of injection mold Download PDFInfo
- Publication number
- CN214188180U CN214188180U CN202022511256.2U CN202022511256U CN214188180U CN 214188180 U CN214188180 U CN 214188180U CN 202022511256 U CN202022511256 U CN 202022511256U CN 214188180 U CN214188180 U CN 214188180U
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- China
- Prior art keywords
- exhaust
- core
- valve
- mold core
- sleeve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002347 injection Methods 0.000 title claims abstract description 11
- 239000007924 injection Substances 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 title claims abstract description 10
- 238000007664 blowing Methods 0.000 title claims abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002026 carminative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a mechanism of blowing on injection mold core, including being located the discharge valve on the mould core air flue, discharge valve's structure is: the valve core is positioned in the exhaust sleeve, a trapezoidal stop block is arranged at the front end part of the valve core, and the trapezoidal stop block is in interference fit with an exhaust hole in the exhaust sleeve; one end of the return spring is abutted against the step of the exhaust sleeve, and the other end of the return spring is abutted against the rear end part of the valve core; the screw is positioned on the air passage of the mold core and has a certain exhaust gap with the inner circumferential surface of the air passage of the mold core, the front end of the screw is in threaded connection with the exhaust sleeve, and the rear end of the screw is positioned on the mold core. The advantages are that: the utility model discloses can prevent that the pneumatic valve from deviating from the mould core, let the use more stable.
Description
Technical Field
The utility model belongs to the technical field of injection mold, especially, relate to a mechanism of blowing on injection mold core.
Background
At present, an air passage is usually arranged in an injection mold, and an air valve is arranged on the air passage to be used as an ejection mechanism of the mold to enable a plastic product to be ejected from a mold core, so that the structure of the mold is greatly simplified, and a large amount of cost is saved; however, the existing air valve is installed from the parting surface of a mold, the requirement on machining and matching of an installation hole is very high, and if the air valve is installed too tightly, the air valve is difficult to replace and even cannot work normally; if the installation is too loose, the air valve may come out of the air passage during the production process, which may cause damage to the mold; there is a need for improvement.
Disclosure of Invention
The utility model aims at providing a not enough to above-mentioned prior art exists, provide a mechanism of blowing on injection mold core, it has can prevent that the pneumatic valve from deviating from the mold core, lets use more stable characteristics.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: an air blowing mechanism on an injection mold core comprises an exhaust valve positioned on an air passage of the mold core, wherein the exhaust valve is structurally characterized in that: the valve core is positioned in the exhaust sleeve, a trapezoidal stop block is arranged at the front end part of the valve core, and the trapezoidal stop block is in interference fit with an exhaust hole in the exhaust sleeve; one end of the return spring is abutted against the step of the exhaust sleeve, and the other end of the return spring is abutted against the rear end part of the valve core; the screw is positioned on the air passage of the mold core and has a certain exhaust gap with the inner circumferential surface of the air passage of the mold core, the front end of the screw is in threaded connection with the exhaust sleeve, and the rear end of the screw is positioned on the mold core.
The valve core is provided with a positioning column, and the lower end of the return spring is abutted against the positioning column; the vent sleeve has a detent thereon that cooperates with the locating post to limit the position of the valve cartridge in use.
After the structure is adopted, compared with the prior art, the utility model the advantage that has is: the utility model discloses a screw rod and exhaust casing spiro union and case are through replying spring location at exhaust casing, have played normal carminative effect like this at work promptly, also can prevent effectively that the pneumatic valve from deviating from the mould core.
Drawings
Fig. 1 is a schematic plan view of the present invention.
Fig. 2 is a schematic view of the valve core structure of the present invention.
Fig. 3 is a schematic view of the exhaust sleeve structure of the present invention.
Fig. 4 is a schematic exhaust diagram of the present invention.
Detailed Description
The following description is only for the preferred embodiment of the present invention, and the protection scope of the present invention is not limited thereby, the present invention will be further explained with reference to the drawings and the embodiments.
Examples, see fig. 1-4: an air blowing mechanism on an injection mold core comprises an exhaust valve positioned on an air passage 10 of the mold core, and the exhaust valve is structured as follows: the mold core air passage air return device comprises an exhaust sleeve 20, a valve core 21, a return spring 22 and a screw 23, wherein the screw 23 is positioned on the mold core air passage 10 and has a certain exhaust gap 30 with the inner circumferential surface of the mold core air passage 10, the front end of the screw 23 is in threaded connection with the exhaust sleeve 20, and the rear end of the screw is positioned on a mold core; the valve core 21 is positioned in the exhaust sleeve 20 and can move up and down in the exhaust sleeve 20, the front end part of the valve core 21 is provided with a trapezoidal stop block 24, the trapezoidal stop block 24 is in interference fit with an exhaust hole in the exhaust sleeve 20, the interface of the exhaust hole is also in a trapezoidal structure, and when the valve core does not work, the trapezoidal stop block 24 is flush with the end surfaces of the exhaust sleeve 20 and the mold core, namely the outer end surface of the trapezoidal stop block 24 is tightly attached to the inner end surface of the exhaust hole. A positioning column 25 is arranged at the lower end of the valve core 21, the lower end of the return spring 22 is abutted against the positioning column 25, and the upper end of the return spring is abutted against a step in the exhaust sleeve 20; when the mold core air channel structure works, air pressure enters from the mold core air channel 10, the trapezoid stop blocks 24 are pushed outwards under the action of the pressure after entering the exhaust gap 30, and the exhaust sleeve 20 is connected with the screw 23, so that the exhaust sleeve cannot move; at this time, the air pressure is discharged from the gap between the trapezoidal stopper 24 and the exhaust sleeve 20; when the exhaust is completed, the valve core 21 is returned to the original position by the return spring 22. Positioning grooves 26 are formed in the exhaust sleeve 20, and the positioning grooves 26 cooperate with the positioning pillars 25 to limit the position of the valve element 21 in use, i.e. in operation, the positioning grooves 26 can limit the moving position of the positioning pillars 25 to prevent the valve element 21 from falling out of the exhaust sleeve.
Claims (2)
1. An air blowing mechanism on an injection mold core, comprising an exhaust valve located on a mold core air passage (10), characterized in that: the structure of the exhaust valve is as follows: the valve core (21) is positioned in the exhaust sleeve (20), the front end part of the valve core is provided with a trapezoidal stop block (24), and the trapezoidal stop block (24) is in interference fit with an exhaust hole in the exhaust sleeve (20); one end of the return spring (22) is abutted against the step of the exhaust sleeve (20), and the other end of the return spring is abutted against the rear end part of the valve core (21); the screw rod (23) is positioned on the mold core air passage (10) and has a certain exhaust gap (30) with the inner circumferential surface of the mold core air passage (10), the front end of the screw rod (23) is in threaded connection with the exhaust sleeve (20), and the rear end of the screw rod is positioned on the mold core.
2. An air blow mechanism on an injection mold core as in claim 1 wherein: the valve core (21) is provided with a positioning column (25), and the lower end of the return spring (22) is abutted against the positioning column (25); the exhaust sleeve (20) has a detent (26) thereon, the detent (26) cooperating with a detent post (25) to limit the position of the valve cartridge (21) in use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022511256.2U CN214188180U (en) | 2020-11-02 | 2020-11-02 | Air blowing mechanism on core of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022511256.2U CN214188180U (en) | 2020-11-02 | 2020-11-02 | Air blowing mechanism on core of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214188180U true CN214188180U (en) | 2021-09-14 |
Family
ID=77644158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022511256.2U Expired - Fee Related CN214188180U (en) | 2020-11-02 | 2020-11-02 | Air blowing mechanism on core of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214188180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112277261A (en) * | 2020-11-02 | 2021-01-29 | 黄自强 | Air blowing mechanism on core of injection mold |
-
2020
- 2020-11-02 CN CN202022511256.2U patent/CN214188180U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112277261A (en) * | 2020-11-02 | 2021-01-29 | 黄自强 | Air blowing mechanism on core of injection mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |