CN204640732U - A kind of high-speed oil cylinder for injection machine - Google Patents
A kind of high-speed oil cylinder for injection machine Download PDFInfo
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- CN204640732U CN204640732U CN201520348921.7U CN201520348921U CN204640732U CN 204640732 U CN204640732 U CN 204640732U CN 201520348921 U CN201520348921 U CN 201520348921U CN 204640732 U CN204640732 U CN 204640732U
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Abstract
The utility model provides a kind of high-speed oil cylinder for injection machine, belongs to technical field of plastic.It solve the slow-footed problem of existing oil cylinder input fluid.This is used for the high-speed oil cylinder of injection machine, and comprising: cylinder body, the two ends of cylinder body are provided with drive end bearing bracket and rear end cap; Main piston, main piston is provided with body and the efferent perpendicular to body, and body is slidably installed in cylinder body, and efferent runs through drive end bearing bracket, offers oil suction chamber from the end face of body along axis, and the opening part of oil suction chamber is sealed and installed with shrouding; Auxiliary piston, one end of auxiliary piston is connected on rear end cap, and the other end inserts shrouding and extends to oil suction chamber, and auxiliary piston offers high speed oilhole along axis; Rear end cap offers the high pressure oilhole and large discharge hole that are communicated to cylinder body, auxiliary piston promotes main piston fast and moves, and in large discharge hole, replenisher force feed is to cylinder body, input hydraulic pressure oil pushing and pressing main piston in high pressure oilhole.This high-speed oil cylinder has the advantage that response is rapid, pressure is large.
Description
Technical field
The utility model belongs to technical field of plastic, relates to a kind of injection machine, particularly a kind of high-speed oil cylinder for injection machine.
Background technology
High-speed injection molding machine has another name called high speed injection molding machine or high speed injection machine.It utilizes mould for plastics to make the main former of the plastic products of various shape thermoplastic or thermosetting material.High speed injection motding function heating of plastic, applies high pressure to molten plastic, makes it penetrate and be full of mold cavity.
And the oil cylinder input fluid speed used in existing injection machine is slow, causes the response speed of injection machine slow, therefore need to improve.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, propose a kind ofly to respond rapidly, the high-speed oil cylinder for injection machine that pressure is large.
The purpose of this utility model realizes by following technical proposal: a kind of high-speed oil cylinder for injection machine, is characterized in that, comprise,
Cylinder body, the two ends of described cylinder body are provided with drive end bearing bracket and rear end cap;
Main piston, described main piston is provided with body and the efferent perpendicular to body, and described body is slidably installed in cylinder body, and described efferent runs through drive end bearing bracket, offer oil suction chamber from the end face of body along axis, the opening part of described oil suction chamber is sealed and installed with shrouding;
Auxiliary piston, one end of described auxiliary piston is connected on rear end cap, and the other end inserts shrouding and extends to oil suction chamber, and described auxiliary piston offers high speed oilhole along axis;
Described rear end cap offers the high pressure oilhole and large discharge hole that are communicated to cylinder body, described auxiliary piston promotes main piston fast and moves, and in described large discharge hole, replenisher force feed is to cylinder body, input hydraulic pressure oil pushing and pressing main piston in described high pressure oilhole.
Above-mentioned a kind of in the high-speed oil cylinder of injection machine, described rear end cap is rounded, the outer peripheral face of rear end cap offers end face, bottom surface and side, described high pressure oilhole is opened on end face, described large discharge hole is opened in bottom surface, described side offers oil supplying hole, the paramount fast oilhole of described oil supplying hole conveying liquid force feed.
Above-mentioned a kind of in the high-speed oil cylinder of injection machine, the external diameter of described efferent is greater than the external diameter of auxiliary piston.
A kind ofly on body, offer stepped hole in the high-speed oil cylinder of injection machine above-mentioned, described shrouding sealing is mounted to stepped hole.
Above-mentioned a kind of in the high-speed oil cylinder of injection machine, the diameter in described large discharge hole is greater than the diameter of high pressure oilhole.
Above-mentioned a kind of in the high-speed oil cylinder of injection machine, described rear end cap offers installing hole along axis, the sidewall of installing hole offers cannelure, described high speed oilhole is opened to cannelure, auxiliary piston radially offers the fuel feed hole being communicated to high speed oilhole, and described fuel feed hole is communicated to cannelure.
Compared with prior art, the utility model has following advantage:
1, adopt auxiliary piston to promote main piston to stretch out fast, the hydraulic pressure oil mass inputted in auxiliary piston is few, and can respond rapidly, large discharge hole can supplement main piston fast and move the space stayed, and the resistance of main piston is little, fast response time.
2, on rear end cap, offer high pressure oilhole and large discharge hole, easy for installation, processing is simple.
3, the external diameter of main piston is much larger than the external diameter of auxiliary piston, and the external diameter of main piston is slightly less than the internal diameter of cylinder body, and therefore, the front and back pressure ratio gap of main piston is large, can produce huge clamp force when being filled with high pressure liquid force feed in cylinder body, pressure greatly, Stability Analysis of Structures.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is longitudinal profile structural representation of the present utility model.
Fig. 3 is horizontal section structural representation of the present utility model.
In figure, 1, cylinder body; 11, back cavity; 12, ante-chamber; 2, rear end cap; 21, large discharge hole; 22, high pressure oilhole; 23, cannelure; 24, oil supplying hole; 25, end face; 26, bottom surface; 27, side; 28, installing hole; 3, drive end bearing bracket; 31, oil outlet; 4, main piston; 41, body; 42, efferent; 43, oil suction chamber; 44, stepped hole; 5, auxiliary piston; 51, high speed oilhole; 52, fuel feed hole; 6, shrouding.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1 to Figure 3, this is used for the high-speed oil cylinder of injection machine, and comprise, cylinder body 1, cylinder body 1 cylindrically, is provided with drive end bearing bracket 3 and rear end cap 2 at the two ends of cylinder body 1, main piston 4, main piston 4 is provided with body 41 and the efferent 42 perpendicular to body 41, body 41 is slidably installed in cylinder body 1, cylinder body 1 is divided into ante-chamber 12 and back cavity 11 by body 41, efferent 42 runs through drive end bearing bracket 3, oil suction chamber 43 is offered from the end face of body 41 along axis, oil suction chamber 43 is towards back cavity 11, efferent 42 is positioned at ante-chamber 12, the external diameter of efferent 42 is slightly less than the internal diameter of cylinder body 1, therefore, the volume of ante-chamber 12 is much smaller than the volume of back cavity 11, drive end bearing bracket 3 offers oil outlet 31, oil outlet 31 is communicated to ante-chamber 12, the hydraulic oil of ante-chamber 12 can enter from oil outlet 31 or discharge, body 41 offers stepped hole 44, stepped hole 44 and oil suction chamber 43 coaxial line, shrouding 6 is sealed and installed with in stepped hole 44, shrouding 6 offers through hole.
Auxiliary piston 5, one end of auxiliary piston 5 is connected on rear end cap 2, the other end inserts shrouding 6 along through hole and extends to oil suction chamber 43, the contact surface of through hole and auxiliary piston 5 seals, and auxiliary piston 5 offers high speed oilhole 51 along axis, and the external diameter of efferent 42 is much larger than the external diameter of auxiliary piston 5, namely the external diameter of efferent 42 is more than the twice of the radius of auxiliary piston 5, therefore can ensure that body 41 has larger lifting surface area in cylinder body 1, lifting surface area is large, can provide stable and strong clamp force.
Rear end cap 2 offers the high pressure oilhole 22 and large discharge hole 21 that are communicated to cylinder body 1, the diameter in large discharge hole 21 is greater than the diameter of high pressure oilhole 22, auxiliary piston 5 is along high speed oilhole 51 output hydraulic pressure oil, hydraulic oil can promote main piston 4 fast and move, can pass into and export the hydraulic oil of normal pressure or low pressure in large discharge hole 21 fast, hydraulic oil replenisher force feed is to cylinder body 1, and after the promotion of auxiliary piston 5 bar puts in place, in high pressure oilhole 22, input hydraulic pressure oil pushes against main piston 4 locking die.
Rear end cap 2 is rounded, rear end cap 2 offers installing hole 28 along axis, the sidewall of installing hole 28 offers cannelure 23, the outer peripheral face of rear end cap 2 offers end face 25, bottom surface 26 and side 27, end face 25, bottom surface 26 and side 27 are plane, high pressure oilhole 22 is vertically opened on end face 25, large discharge hole 21 is vertically opened in bottom surface 26, side 27 vertically offers oil supplying hole 24, high speed oilhole 51 is opened to cannelure 23, auxiliary piston 5 radially offers the fuel feed hole 52 being communicated to high speed oilhole 51, fuel feed hole 52 also can have multiple around being opened on auxiliary piston 5, fuel feed hole 52 is communicated to cannelure 23, the paramount fast oilhole 51 of oil supplying hole 24 conveying liquid force feed.
The utility model in an initial condition, the hydraulic oil of high pressure is inputted along fuel feed hole 52, fluid enters oil suction chamber 43 and promotes main piston 4 high forward, the hydraulic oil of normal pressure or low pressure flows in back cavity 11 along large discharge hole 21, move to outgoing position at main piston 4, large discharge hole 21 is closed, and inputs high being pressed with and promote main piston 4 locking die further in high pressure oilhole 22, there is input quantity few, the feature that locked mode pressure is large.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (6)
1. for a high-speed oil cylinder for injection machine, it is characterized in that, comprise,
Cylinder body, the two ends of described cylinder body are provided with drive end bearing bracket and rear end cap;
Main piston, described main piston is provided with body and the efferent perpendicular to body, and described body is slidably installed in cylinder body, and described efferent runs through drive end bearing bracket, offer oil suction chamber from the end face of body along axis, the opening part of described oil suction chamber is sealed and installed with shrouding;
Auxiliary piston, one end of described auxiliary piston is connected on rear end cap, and the other end inserts shrouding and extends to oil suction chamber, and described auxiliary piston offers high speed oilhole along axis;
Described rear end cap offers the high pressure oilhole and large discharge hole that are communicated to cylinder body, described auxiliary piston promotes main piston fast and moves, and in described large discharge hole, replenisher force feed is to cylinder body, input hydraulic pressure oil pushing and pressing main piston in described high pressure oilhole.
2. a kind of high-speed oil cylinder for injection machine according to claim 1, it is characterized in that, described rear end cap is rounded, the outer peripheral face of rear end cap offers end face, bottom surface and side, described high pressure oilhole is opened on end face, described large discharge hole is opened in bottom surface, and described side offers oil supplying hole, the paramount fast oilhole of described oil supplying hole conveying liquid force feed.
3. a kind of high-speed oil cylinder for injection machine according to claim 1 and 2, is characterized in that, the external diameter of described efferent is greater than the external diameter of auxiliary piston.
4. a kind of high-speed oil cylinder for injection machine according to claim 1 and 2, is characterized in that, body offers stepped hole, and described shrouding sealing is mounted to stepped hole.
5. a kind of high-speed oil cylinder for injection machine according to claim 1 and 2, is characterized in that, the diameter in described large discharge hole is greater than the diameter of high pressure oilhole.
6. a kind of high-speed oil cylinder for injection machine according to claim 1 and 2, it is characterized in that, described rear end cap offers installing hole along axis, the sidewall of installing hole offers cannelure, described high speed oilhole is opened to cannelure, auxiliary piston radially offers the fuel feed hole being communicated to high speed oilhole, and described fuel feed hole is communicated to cannelure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520348921.7U CN204640732U (en) | 2015-05-26 | 2015-05-26 | A kind of high-speed oil cylinder for injection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520348921.7U CN204640732U (en) | 2015-05-26 | 2015-05-26 | A kind of high-speed oil cylinder for injection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204640732U true CN204640732U (en) | 2015-09-16 |
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ID=54093509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520348921.7U Expired - Fee Related CN204640732U (en) | 2015-05-26 | 2015-05-26 | A kind of high-speed oil cylinder for injection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204640732U (en) |
-
2015
- 2015-05-26 CN CN201520348921.7U patent/CN204640732U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20200526 |