CN102490290A - Air exhaust mechanism for plastic cement mould - Google Patents
Air exhaust mechanism for plastic cement mould Download PDFInfo
- Publication number
- CN102490290A CN102490290A CN2011103905153A CN201110390515A CN102490290A CN 102490290 A CN102490290 A CN 102490290A CN 2011103905153 A CN2011103905153 A CN 2011103905153A CN 201110390515 A CN201110390515 A CN 201110390515A CN 102490290 A CN102490290 A CN 102490290A
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- valve
- air exhaust
- valve rod
- support plate
- plug
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Abstract
The invention discloses an air exhaust mechanism for a plastic cement mould. The plastic cement mould comprises a support plate, wherein a lower mould plate is positioned on the support plate, an upper mould plate is arranged on the lower mould plate, the support plate is provided with an air exhaust groove, and a filling groove for filling resin is arranged on the lower mould plate. the plastic cement mould is characterized in that the lower mould plate is provided with an installation hole, an air exhaust valve is arranged in the installation hole, the air exhaust valve comprises a valve body, a valve cavity communicating the filling groove and the air exhaust groove is disposed in the valve body, a valve rod capable of moving in the valve cavity is arranged in the valve cavity, a plug capable of sealing the valve cavity is positioned at the upper end of the valve rod, the upper end of the plug is provided with a push block extending out of the valve cavity, and a return spring is positioned at the lower end of the valve rod. The working principle of the air exhaust mechanism is that when the valve rod is opened by elasticity of the return spring, gas generated by resin and air in the mould can be exhausted. When the resin reaches the position of the valve rod, the push block is downwards extruded by the pressure of the resin, and the plug moves downwards to close the valve cavity to finish exhausting air. The air exhaust mechanism is good in air exhaust effect, capable of reducing cost, and convenient in structural process, installation and adjustment.
Description
[technical field]
The present invention relates to a kind of exhaust structure of plastic mould.
[background technology]
Existing plastic mould when relating to die venting, all adopts the exhaust mold insert air drain structure that begins to rehearse.As shown in Figure 1, existing plastic mould exhaust structure, exhaust structure mainly comprise, support plate 101, exhaust needle 102, lower bolster 103, cope match-plate pattern 104.At first at lower bolster 103 exhaust needle 102 is installed, gas is directly discharged from the air discharge duct of exhaust needle 102, reaches the purpose of die venting.The air discharge duct degree of depth of this mode is generally 0.01-0.03mm, in a lot of plastic moulds, all satisfied not the die venting requirement, thereby it is bad to cause product to fill, burn, phenomenons such as shrinkage cavity; Product shaping cycle lengthening increases production cost.
[summary of the invention]
It is bad to the objective of the invention is to have solved die venting, influences under the situation of production cost, and a kind of good exhaust effect is provided, the plastic mould exhaust structure that reduces production costs.
For achieving the above object, the present invention adopts following technical scheme:
A kind of exhaust structure of plastic mould, described plastic mould comprises support plate, support plate is provided with lower bolster; Lower bolster is provided with cope match-plate pattern, and described support plate is provided with air discharge duct, and lower bolster is provided with the filling slot that is used for potting resin; It is characterized in that also being provided with installing hole on the described lower bolster, be provided with air bleeding valve in the described installing hole, described air bleeding valve comprises valve body; Be provided with the valve pocket that is communicated with filling slot and air discharge duct in the valve body, be provided with the valve rod that can in valve pocket, move in the valve pocket, the upper end of valve rod is provided with the plug of salable valve pocket; The upper end of plug is provided with the jacking block that stretches out valve pocket, and the lower end of valve rod is provided with back-moving spring.
The exhaust structure of aforesaid a kind of plastic mould is characterized in that the upper end of valve pocket is provided with up big and down small bellmouth, and plug is up big and down small bullet.
The exhaust structure of aforesaid a kind of plastic mould is characterized in that the lower end of valve rod is provided with collar, and the upper end of back-moving spring is stuck on the collar, and the lower end of back-moving spring is stuck in the upper end of support plate.
The exhaust structure of aforesaid a kind of plastic mould is characterized in that leaving between plug and the valve pocket exhaust clearance of 0.1-0.2.
The present invention also is provided with installing hole on lower bolster; Be provided with air bleeding valve in the installing hole; Be provided with the valve pocket that is communicated with filling slot and air discharge duct in the air bleeding valve, be provided with valve rod in the valve pocket, the upper end of valve rod is provided with the plug of salable valve pocket; The upper end of plug is provided with the jacking block that stretches out valve pocket, and the lower end of valve rod is provided with back-moving spring.Its operation principle is when the elastic force that valve rod receives back-moving spring is opened, and can discharge gas and the interior air of mould that resin produces.When resin arrives the valve rod place, because of the pressure that receives resin pushes jacking block downwards, plug is moved down, finish exhaust thereby close valve pocket.Good exhaust effect reduces production costs; And the processing of structure, install, regulate all very convenient.
[description of drawings]
Fig. 1 is the assembly drawing of traditional fabrication;
Fig. 2 is an assembly drawing of the present invention;
Fig. 3 is an assembly drawing of the present invention;
Fig. 4 is the structural representation of air bleeding valve of the present invention;
Fig. 5 is the top enlarged drawing of air bleeding valve under open mode;
Fig. 6 is the top enlarged drawing of air bleeding valve under in off position.
[specific embodiment]
Below in conjunction with accompanying drawing the present invention is done detailed explanation
As shown in Figure 1, a kind of exhaust structure of plastic mould,, a kind of exhaust structure of plastic mould; Described plastic mould comprises support plate 1, and support plate 1 is provided with lower bolster 2, and lower bolster 2 is provided with cope match-plate pattern 3; Described support plate 1 is provided with air discharge duct 11, and lower bolster 2 is provided with the filling slot 21 that is used for potting resin, also is provided with installing hole 4 on the described lower bolster 2; Be provided with air bleeding valve 5 in the described installing hole 4, described air bleeding valve 5 comprises valve body 51, is provided with the valve pocket 52 that is communicated with filling slot 21 and air discharge duct 11 in the valve body 51; Be provided with the valve rod 53 that can in valve pocket 52, move in the valve pocket 52; The upper end of valve rod 53 is provided with the plug 54 of salable valve pocket, and the upper end of plug 54 is provided with the jacking block 541 that stretches out valve pocket, and the lower end of valve rod 53 is provided with back-moving spring 55.Its operation principle is when the elastic force that valve rod 53 receives back-moving spring 55 is opened; Owing to can produce the exhaust clearance 300 of 0.1-0.2 between plug 54 and the valve pocket; Its gap is bigger; Gas that produces in the time of can discharging in filling slot 21 potting resin 200 and the air in the mould, the fine purpose that reaches die venting; When potting resin 200 backs arrive valve rod 53 places, because of the pressure that receives resin 200 pushes jacking block 541 downwards, plug 54 is moved down, thereby the exhaust clearance of closing between valve pocket and the plug 54 finish exhaust.The processing of exhaust structure is installed, and regulates all very convenient.
The upper end of valve pocket 52 is provided with up big and down small bellmouth 521, and plug 54 is up big and down small bullet.
The lower end of valve rod 53 is provided with collar 531, and the upper end of back-moving spring 55 is stuck on the collar 531, and the lower end of back-moving spring 55 is stuck in the upper end of support plate 1.
Claims (3)
1. the exhaust structure of a plastic mould, described plastic mould comprises support plate (1), support plate (1) is provided with lower bolster (2); Lower bolster (2) is provided with cope match-plate pattern (3), and described support plate (1) is provided with air discharge duct (11), and lower bolster (2) is provided with the filling slot (21) that is used for potting resin; It is characterized in that also being provided with on the described lower bolster (2) installing hole (4); Be provided with air bleeding valve (5) in the described installing hole (4), described air bleeding valve (5) comprises valve body (51), is provided with the valve pocket (52) that is communicated with filling slot (21) and air discharge duct (11) in the valve body (51); Be provided with the valve rod (53) that can in valve pocket (52), move in the valve pocket (52); The upper end of valve rod (53) is provided with the plug (54) of salable valve pocket, and the upper end of plug (54) is provided with the jacking block (541) that stretches out valve pocket, and the lower end of valve rod (53) is provided with back-moving spring (55).
2. the exhaust structure of a kind of plastic mould according to claim 1 is characterized in that the upper end of valve pocket (52) is provided with up big and down small bellmouth (521), and plug (54) is up big and down small bullet.
3. the exhaust structure of a kind of plastic mould according to claim 1 is characterized in that the lower end of valve rod (53) is provided with collar (531), and the upper end of back-moving spring (55) is stuck on the collar (531), and the lower end of back-moving spring (55) is stuck in the upper end of support plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103905153A CN102490290A (en) | 2011-11-30 | 2011-11-30 | Air exhaust mechanism for plastic cement mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103905153A CN102490290A (en) | 2011-11-30 | 2011-11-30 | Air exhaust mechanism for plastic cement mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102490290A true CN102490290A (en) | 2012-06-13 |
Family
ID=46182171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103905153A Pending CN102490290A (en) | 2011-11-30 | 2011-11-30 | Air exhaust mechanism for plastic cement mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102490290A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624680A (en) * | 2017-01-21 | 2017-05-10 | 杭州科技职业技术学院 | Machining method for forging die of automobile bearing |
| CN107893943A (en) * | 2017-12-20 | 2018-04-10 | 众普森科技（株洲）有限公司 | Floodlight |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60127112A (en) * | 1983-12-14 | 1985-07-06 | Matsushita Electric Works Ltd | Air venting device of molding die |
| CN1178823C (en) * | 2000-02-07 | 2004-12-08 | 瓜拉喷注公开有限公司 | Closure for containers, in particular plug for bottles |
| CN202388660U (en) * | 2011-11-30 | 2012-08-22 | 中山市利群精密实业有限公司 | Novel exhaust structure of plastic mold |
-
2011
- 2011-11-30 CN CN2011103905153A patent/CN102490290A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60127112A (en) * | 1983-12-14 | 1985-07-06 | Matsushita Electric Works Ltd | Air venting device of molding die |
| CN1178823C (en) * | 2000-02-07 | 2004-12-08 | 瓜拉喷注公开有限公司 | Closure for containers, in particular plug for bottles |
| CN202388660U (en) * | 2011-11-30 | 2012-08-22 | 中山市利群精密实业有限公司 | Novel exhaust structure of plastic mold |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624680A (en) * | 2017-01-21 | 2017-05-10 | 杭州科技职业技术学院 | Machining method for forging die of automobile bearing |
| CN107893943A (en) * | 2017-12-20 | 2018-04-10 | 众普森科技（株洲）有限公司 | Floodlight |
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20120613 |