CN200970878Y - Improved of needle valve type thermal sprue cylinder piston structure - Google Patents
Improved of needle valve type thermal sprue cylinder piston structure Download PDFInfo
- Publication number
- CN200970878Y CN200970878Y CN 200620046153 CN200620046153U CN200970878Y CN 200970878 Y CN200970878 Y CN 200970878Y CN 200620046153 CN200620046153 CN 200620046153 CN 200620046153 U CN200620046153 U CN 200620046153U CN 200970878 Y CN200970878 Y CN 200970878Y
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- CN
- China
- Prior art keywords
- piston
- lid
- cylinder
- cylinder body
- air inlet
- Prior art date
- 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
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to an improved conformation of the reciprocating movement of a piston in a needle-valve hot-runner cylinder, which is arranged with a piston in a cylinder body, a stem is arranged on the piston, and a cover is arranged on the cylinder body. The cylinder subassembly is arranged upon a plastic mold and inside a stationary plate. The utility model is characterized in that the cover is arranged with two air intakes for air entering to push the piston up and down, namely reciprocating movement, to control the stem to open and close the outlet of a plastic shooting out. The utility model has the advantages of that the two main air intakes are arranged on the cover instead of on the stationary plate, thus being more easy to be processed as well as reducing the cost, moreover, the direction of the air intakes can be adjusted according to the interspace, which can avoid mutual interference of blowing tubes. In addition, the utility model is easier to be maintained and field assembled.
Description
Technical field
The utility model relates to the improvement that a kind of needle valve hot runner cylinder piston moves back and forth structure, belongs to the plastic machine device.
Background technology
Known relevant plastics penetrate mould needle valve heat and water passage cylinder assembly (seeing also accompanying drawing 1), lie in installing one piston 2 in the cylinder body 1 haply, installing one valve rod 3 on piston 2, and installing one lid 4 constitutes on cylinder body 1, this cylinder assembly system is installed in the shrinkage pool of plastics jetting mold upper mounted plate 5, this upper mounted plate 5 is provided with two plate body gas making ducts 51,52, and cylinder body 1 periphery is provided with the cylinder body air inlet duct 12 that communicates with interior seating plane 11, lid 4 bottom surfaces are provided with the lid air inlet duct 42 that communicates with central recess 41: its plate body air inlet duct 51,52 1 ends are connected with gas blow pipe respectively, end is connected with cylinder body air inlet duct 12 and lid air inlet duct 42 in addition, and piston 2 is blown up and down, and drive valve rod 3 in order to open and close hot runner plastics exit wound of bullet 31 by the gas that cylinder body air inlet duct 12 and lid air inlet duct 42 are blown into.
The reciprocating structure of this needle valve hot runner cylinder piston, though accurate positioning, needle length adjustment side side are arranged and keep in repair easy superiority, but not only processing cost height of fixed head 5 is located in its plate body air inlet duct 51,52, and use many group needle-valves or cylinder as one group of mould, and when needing indivedual control, have the problem generation that the racemosus gas blow pipe is interfered mutually.
Summary of the invention
For solving the defective that aforementioned needle valve hot runner cylinder piston structure exists, the utility model provides a kind of needle valve hot runner cylinder piston to move back and forth the improvement of structure, it is by installing one piston in the cylinder body, installing one valve rod on piston, installing one lid constitutes on cylinder body, and this cylinder assembly is installed on the mould of plastics in the fixed head; Be characterized in: be provided with two air inlet ducts in this lid periphery, piston reached from top to bottom to blow from bottom to top respectively by the air inlet in these two air inlet ducts and piston is produced move back and forth.
In addition, lid also is provided with a connecting hole, and this connecting hole communicates with lid one air inlet duct, and leads to the lid bottom surface.
And be provided with some grooves at the cylinder body periphery, the groove terminal also is provided with the air admission hole that feeds seating plane in the cylinder body.
The utility model has the advantages that, two main air inlet ducts are arranged at the lid periphery, can exempt the setting in two air inlet ducts of upper mounted plate, it is handling ease not only, can reduce cost, and the air inlet duct can need adjust direction according to the space, not have the problem that gas blow pipe is interfered mutually, and it is easy to maintenance, and assembled in situ is easy.
Description of drawings
Accompanying drawing 1 is known needle valve hot runner cylinder piston structure.
Accompanying drawing 2 is cylinder piston plane structure charts of the present utility model.
Accompanying drawing 3 is cylinder piston structure cutaway views of the present utility model.
Accompanying drawing 4 is cylinder piston structure exploded views of the present utility model.
Label declaration in the accompanying drawing:
1 ... cylinder body
2 ... piston
3 ... valve rod
4 ... lid
5 ... upper mounted plate
6,7 ... the lid vent cap
8 ... groove
9 ... gas blow pipe
11 ... seating plane in the cylinder body
12 ... cylinder body air inlet duct
31 ... hot runner plastics exit wound of bullet
41 ... the lid central recess
42 ... lid air inlet duct
51,52 ... plate body air inlet duct
71 ... connecting hole
81 ... air admission hole
The specific embodiment
See also shown in the accompanying drawing 2,3,4, in cylinder body 1 installing one piston 2, in installing one valve rod 3 on the piston 2 and on cylinder body 1 installing one lid 4, constitute, and the assembly of its formation is installed in the shrinkage pool of upper mounted plate 5.
The periphery of aforementioned lid 4 is provided with two lid air admission holes 6,7, by the air inlet in two air inlet ducts, piston is reached from bottom to top from top to bottom blow respectively, the piston place is given birth to move back and forth.
Aforementioned components system is blown into gas by the air inlet duct gas blow pipe 9 that is connected in lid 4, when gas is blown into from lid 4 air admission holes 8, system blows piston 2 from top to bottom via central recess 41: when gas is blown into from lid 4 air admission holes 7, system blows piston 2 from bottom to top through connecting hole 71, groove 8 and air admission hole 81, then piston 2 promptly produces reciprocating motion, and drive valve rod 3, open and close the hot runner exit wound of bullet.
Claims (3)
1, a kind of improvement of needle valve hot runner cylinder piston structure, it is by installing one piston in the cylinder body, installing one valve rod on piston, installing one lid constitutes on cylinder body, this cylinder assembly is installed on the mould of plastics in the fixed head, it is characterized in that: be provided with two air inlet ducts in this lid periphery, piston reached from top to bottom to blow from bottom to top respectively by the air inlet in these two air inlet ducts and piston is produced move back and forth.
2, by the improvement of the described needle valve hot runner of claim 1 cylinder piston structure, it is characterized in that: lid also is provided with a connecting hole, and this connecting hole communicates with lid one air inlet duct, and leads to the lid bottom surface.
3, by the improvement of the described needle valve hot runner of claim 1 cylinder piston structure, it is characterized in that: be provided with some grooves at the cylinder body periphery, the groove terminal also is provided with the air admission hole that feeds seating plane in the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620046153 CN200970878Y (en) | 2006-09-22 | 2006-09-22 | Improved of needle valve type thermal sprue cylinder piston structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620046153 CN200970878Y (en) | 2006-09-22 | 2006-09-22 | Improved of needle valve type thermal sprue cylinder piston structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200970878Y true CN200970878Y (en) | 2007-11-07 |
Family
ID=38882134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620046153 Expired - Fee Related CN200970878Y (en) | 2006-09-22 | 2006-09-22 | Improved of needle valve type thermal sprue cylinder piston structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200970878Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700077A (en) * | 2012-04-29 | 2012-10-03 | 苏州好特斯模具有限公司 | Air cylinder for hot runner system |
| CN103252874A (en) * | 2012-02-21 | 2013-08-21 | 模懋实业股份有限公司 | Hot runner device with valve pin adjustment structure |
| CN103507225A (en) * | 2013-09-30 | 2014-01-15 | 苏州好特斯模具有限公司 | Cylinder fixing component for hot runners |
-
2006
- 2006-09-22 CN CN 200620046153 patent/CN200970878Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252874A (en) * | 2012-02-21 | 2013-08-21 | 模懋实业股份有限公司 | Hot runner device with valve pin adjustment structure |
| CN102700077A (en) * | 2012-04-29 | 2012-10-03 | 苏州好特斯模具有限公司 | Air cylinder for hot runner system |
| CN103507225A (en) * | 2013-09-30 | 2014-01-15 | 苏州好特斯模具有限公司 | Cylinder fixing component for hot runners |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071107 Termination date: 20130922 |