CN203570746U - Movable type cylinder piston - Google Patents
Movable type cylinder piston Download PDFInfo
- Publication number
- CN203570746U CN203570746U CN201320764713.6U CN201320764713U CN203570746U CN 203570746 U CN203570746 U CN 203570746U CN 201320764713 U CN201320764713 U CN 201320764713U CN 203570746 U CN203570746 U CN 203570746U
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- CN
- China
- Prior art keywords
- piston
- cylinder
- movable
- fixed
- cushion block
- 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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Abstract
The utility model discloses a movable type cylinder piston. The movable type cylinder piston comprises a cylinder cover (1), a fastening nut (2), a fixed piston (3), a movable piston rod (4) and a cushion block guiding sleeve (5), wherein the cushion block guiding sleeve (5) is arranged above a flow distributing plate (7); the movable piston rod (4) is sheathed in the upper end of the cushion block guiding sleeve (5); a valve needle (6) is arranged in the movable piston rod (4); the fixed piston (3) is sheathed outside the outer section of the movable piston rod (4); a gap is arranged between the fixed piston (3) and the movable piston rod (4); the fastening nut (2) is in threaded connection with the upper end of the movable piston rod (4); the cylinder cover (1) is arranged on the fastening nut (2) and is provided with a cylinder-cover sealing ring (11); the fixed piston (3) is externally provided with a fixed-piston sealing ring (12); the lower contact surface between the fixed piston (3) and the movable piston rod (4) is provided with a movable-piston-rod main sealing ring (9); the upper end of the valve needle (6) is provided with a valve-needle locking screw (13). Compared with the prior art, the movable type cylinder piston can swing; the height of the valve needle can be adjusted randomly, and the mold cover plate replaces a cylinder body, and can be opened and combined at any time, so that a hot-runner valve needle system is more convenient to install, repair and maintain, the mold cover plate is simple in processing, the cylinder is low in cost, and the promotion value and the use value are large.
Description
Technical field
The utility model relates to a kind of cylinder piston, relates in particular to a kind of portable cylinder piston.
Background technique
Piston is the cylindrical metal parts that carry out straight reciprocating motion in cylinder, piston slides along cylinder body, by piston packing, keep sealing, piston rod is connected with driving mechanism, transmission of pressure, the side pressure producing when the compression stroke in order to reduce piston, in order to reduce the wearing and tearing of piston to cylinder body, piston must be vertical with cylinder body.And in the technology of hot runner valve needle system, flow distribution plate can be expanded with heat and contract with cold by the impact of temperature, want the effective transmission of pressure of needle and flow distribution plate, mechanism connects needs movable body just can satisfy the demands.
Model utility content
The purpose of this utility model provides a kind of portable cylinder piston with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of portable cylinder piston, it is characterized in that comprising: cylinder head, fastening nut, fixed piston, mobile piston bar, cushion block guide sleeve, described cushion block guide sleeve is arranged at the top of flow distribution plate, described mobile piston bar is set in cushion block guide sleeve upper end, described mobile piston bar is built-in with needle, described fixed piston is set in outside mobile piston bar epimere, between fixed piston and mobile piston bar, be provided with gap, described fastening nut is threaded with the upper end of mobile piston bar, described cylinder head is arranged on fastening nut, in described cylinder head, be provided with sealing ring of cylinder cover, described fixed piston is outside equipped with fixed piston seal ring, the lower surface of contact of described fixed piston and mobile piston bar is provided with mobile piston bar primary seal circle, the upper end of described needle is provided with needle lock screw.
Preferably, between described mobile piston bar and cushion block guide sleeve, be provided with mobile piston rod seal circle.
The beneficial effects of the utility model are:
The utility model is a kind of portable cylinder piston, compared with prior art, piston of the present utility model can swing, needle height can arbitrarily regulate, and die cover plate replaces cylinder block, and die cover plate can be opened and merge at any time, model utility makes hot runner valve needle system more convenient when installation, maintenance, maintenance, die cover plate processing is simple, and cylinder cost is low, has the value of promoting the use of.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present utility model;
Fig. 2 is decomposition texture schematic diagram of the present utility model.
As shown in Figure 1, Figure 2,1-cylinder head, 2-fastening nut, 3-fixed piston, 4-mobile piston bar, 5-cushion block guide sleeve, 6-needle, 7-flow distribution plate, 8-die cover plate, 9-mobile piston bar primary seal circle, 10-mobile piston rod seal circle, 11-sealing ring of cylinder cover, 12-fixed piston seal ring, 13-needle lock screw.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As Fig. 1, shown in Fig. 2: the utility model comprises cylinder head 1, fastening nut 2, fixed piston 3, mobile piston bar 4, cushion block guide sleeve 5, described cushion block guide sleeve 5 is arranged at the top of flow distribution plate 7, described mobile piston bar 4 is set in cushion block guide sleeve 5 upper ends, described mobile piston bar 4 is built-in with needle 6, described fixed piston 3 is set in outside mobile piston bar 4 epimeres, between fixed piston 3 and mobile piston bar 4, be provided with gap, described fastening nut 2 is threaded with the upper end of mobile piston bar 4, described cylinder head 1 is arranged on fastening nut 2, in described cylinder head, 1 is provided with sealing ring of cylinder cover 11, described fixed piston 3 is outside equipped with fixed piston seal ring 12, described fixed piston 3 is provided with mobile piston bar primary seal circle 9 with the lower surface of contact of mobile piston bar 4, the upper end of described needle 6 is provided with needle lock screw 13.
As shown in Figure 1: descend in working order flow distribution plate 7 temperature influences to expand and be shifted to X-Y axle; flow distribution plate 7 drives cushion block guide sleeve 5 to move; cushion block guide sleeve 5 drives mobile piston bar 4 to move; make needle 6 keep vertical with flow distribution plate 7; guarantee that reciprocating motion of the pistons is more smooth and easy, the screw thread that passes through of mobile piston bar 4 is connected with needle 6, and the height of needle 6 can arbitrarily regulate; die cover plate 8 replaces cylinder block, and die cover plate can be opened and merge at any time.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion of making according to the technical solution of the utility model, within all falling into protection domain of the present utility model.
Claims (2)
1. a portable cylinder piston, it is characterized in that comprising: cylinder head (1), fastening nut (2), fixed piston (3), mobile piston bar (4), cushion block guide sleeve (5), described cushion block guide sleeve (5) is arranged at the top of flow distribution plate (7), described mobile piston bar (4) is set in cushion block guide sleeve (5) upper end, described mobile piston bar (4) is built-in with needle (6), described fixed piston (3) is set in outside mobile piston bar (4) epimere, between described fixed piston (3) and mobile piston bar (4), be provided with gap, described fastening nut (2) is threaded with the upper end of mobile piston bar (4), described cylinder head (1) is arranged on fastening nut (2), in described cylinder head, (1) is provided with sealing ring of cylinder cover (11), described fixed piston (3) is outside equipped with fixed piston seal ring (12), described fixed piston (3) is provided with mobile piston bar primary seal circle (9) with the lower surface of contact of mobile piston bar (4), the upper end of described needle (6) is provided with needle lock screw (13).
2. portable cylinder piston as claimed in claim 1, is characterized in that being provided with mobile piston rod seal circle (10) between described mobile piston bar (4) and cushion block guide sleeve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320764713.6U CN203570746U (en) | 2013-11-28 | 2013-11-28 | Movable type cylinder piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320764713.6U CN203570746U (en) | 2013-11-28 | 2013-11-28 | Movable type cylinder piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570746U true CN203570746U (en) | 2014-04-30 |
Family
ID=50538479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320764713.6U Expired - Fee Related CN203570746U (en) | 2013-11-28 | 2013-11-28 | Movable type cylinder piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570746U (en) |
-
2013
- 2013-11-28 CN CN201320764713.6U patent/CN203570746U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20141128 |
|
| EXPY | Termination of patent right or utility model |