CN204172294U - A kind of No leakage hydraulic pressure self-locking circuit for injection moulding machine mode-locking - Google Patents
A kind of No leakage hydraulic pressure self-locking circuit for injection moulding machine mode-locking Download PDFInfo
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- CN204172294U CN204172294U CN201420567502.8U CN201420567502U CN204172294U CN 204172294 U CN204172294 U CN 204172294U CN 201420567502 U CN201420567502 U CN 201420567502U CN 204172294 U CN204172294 U CN 204172294U
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- valve
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- locking
- electromagnetism check
- check valve
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Abstract
The utility model discloses a kind of No leakage hydraulic pressure self-locking circuit for injection moulding machine mode-locking, comprise folding mould oil cylinder, inserted valve and fuel tank, first main hydraulic fluid port of inserted valve is connected with the rod chamber of folding mould oil cylinder, also comprise electromagnetism check valve and shuttle valve, the actuator port of electromagnetism check valve is connected with the control mouth of inserted valve, the oil-in of electromagnetism check valve is connected with the oil-out of shuttle valve, the oil-out of electromagnetism check valve is connected with fuel tank, first oil-in of shuttle valve is connected with the rod chamber of folding mould oil cylinder, second oil-in of shuttle valve is connected with the second main hydraulic fluid port of inserted valve, its advantage be shuttle valve and electromagnetism check valve with the use of, can No leakage self-locking to guarantee whether first of inserted valve the main hydraulic fluid port and the second main hydraulic fluid port exist larger pressure reduction, and this hydraulic pressure self-locking circuit have switch speed fast, respond fast advantage, in addition, eliminate the booster pump in traditional hydraulic pressure self-locking circuit, provide other energy without the need to the external world, there is energy-conservation advantage.
Description
Technical field
The utility model relates to a kind of hydraulic pressure locked loop of injection machine, especially a kind of No leakage hydraulic pressure self-locking circuit for injection moulding machine mode-locking.
Background technology
Injection machine thermoplastic or thermosetting plastics is utilized mould for plastics to make the main former of the plastic products of various shape.Injection machine is generally made up of parts such as injecting systems, Clamping System, Hydraulic Power Transmission Systems, the effect of Hydraulic Power Transmission System realizes injection machine to provide power by the various actions required by technical process, and meet the requirement of pressure, speed, temperature etc. needed for injection machine each several part.Existing hydraulic injection molding machine locked loop easily produces oil pressure and leaks, and can cause the locked mode pressure instability of injection machine, affect injection moulding machine mode-locking effect; Traditional solution adds booster pump in hydraulic pressure self-locking circuit, with the system liquid pressure in supplementary hydraulic pressure self-locking circuit.But in use, booster pump itself needs the external world to provide energy to work, cause power consumption large.
Summary of the invention
Technical problem to be solved in the utility model be to provide a kind of switch speed fast, without internal leakage and the energy-conservation No leakage hydraulic pressure self-locking circuit for injection moulding machine mode-locking.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of No leakage hydraulic pressure self-locking circuit for injection moulding machine mode-locking, comprise folding mould oil cylinder, inserted valve and fuel tank, first main hydraulic fluid port of described inserted valve is connected with the rod chamber of described folding mould oil cylinder, also comprise electromagnetism check valve and shuttle valve, the actuator port of described electromagnetism check valve is connected with the control mouth of described inserted valve, the oil-in of described electromagnetism check valve is connected with the oil-out of described shuttle valve, the oil-out of described electromagnetism check valve is connected with described fuel tank, first oil-in of described shuttle valve is connected with the rod chamber of described folding mould oil cylinder, second oil-in of described shuttle valve is connected with the second main hydraulic fluid port of described inserted valve.
Also comprise overflow valve, the oil-in of described overflow valve is connected with the actuator port of described electromagnetism check valve, the control mouth of described inserted valve respectively, and the oil-out of described overflow valve is connected with described fuel tank.Overflow valve is for controlling the upper pressure limit position of inserted valve, and the piston rod not splitting die cylinder during to guarantee that external force is larger causes damage.
Compared with prior art, the utility model has the advantage of to be obtained by electromagnetism check valve and electricly make inserted valve self-locking, ensure that the piston position of folding mould oil cylinder is constant, and shuttle valve and electromagnetism check valve with the use of, can No leakage self-locking to guarantee whether first of inserted valve the main hydraulic fluid port and the second main hydraulic fluid port exist larger pressure reduction; And this hydraulic pressure self-locking circuit have switch speed fast, respond fast advantage; In addition, this No leakage hydraulic pressure self-locking circuit eliminates the booster pump in traditional hydraulic pressure self-locking circuit, provides other energy, have energy-conservation advantage without the need to the external world.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
A kind of No leakage hydraulic pressure self-locking circuit for injection moulding machine mode-locking as shown in Figure 1, comprise folding mould oil cylinder 1, inserted valve 2, fuel tank 3, electromagnetism check valve 4, shuttle valve 5 and overflow valve 6, first main hydraulic fluid port B1 of inserted valve 2 is connected with the rod chamber 7 of folding mould oil cylinder 1, the actuator port A of electromagnetism check valve 4 is connected with the control mouth C of inserted valve 2, the oil inlet P 1 of electromagnetism check valve 4 is connected with the oil-out T2 of shuttle valve 5, the oil-out T1 of electromagnetism check valve 4 is connected with fuel tank 3, first oil inlet P 2 of shuttle valve 5 is connected with the rod chamber 7 of folding mould oil cylinder 1, second oil inlet P 3 of shuttle valve 5 is connected with the second main hydraulic fluid port B2 of inserted valve 2, the oil inlet P 4 of overflow valve 6 respectively with the actuator port A of electromagnetism check valve 4, the control mouth C of inserted valve 2 is connected, the oil-out T3 of overflow valve 6 is connected with fuel tank 3.
In above-described embodiment, the course of work of this No leakage hydraulic pressure self-locking circuit is: after the piston movement in folding mould oil cylinder 1 puts in place, and electromagnetism check valve 4 electricly must make inserted valve 2 self-locking, guarantees that the piston position in folding mould oil cylinder 1 is constant.Shuttle valve 5 and electromagnetism check valve 4 with the use of, can No leakage self-locking to guarantee whether the main hydraulic fluid port B1 of inserted valve 2 first and the second main hydraulic fluid port B2 exists larger pressure reduction.Overflow valve 6 controls the upper pressure limit position of inserted valve 2, when guaranteeing that the external force of promotion piston rod is larger, does not cause damage to piston rod.
Claims (2)
1. the No leakage hydraulic pressure self-locking circuit for injection moulding machine mode-locking, comprise folding mould oil cylinder, inserted valve and fuel tank, first main hydraulic fluid port of described inserted valve is connected with the rod chamber of described folding mould oil cylinder, characterized by further comprising electromagnetism check valve and shuttle valve, the actuator port of described electromagnetism check valve is connected with the control mouth of described inserted valve, the oil-in of described electromagnetism check valve is connected with the oil-out of described shuttle valve, the oil-out of described electromagnetism check valve is connected with described fuel tank, first oil-in of described shuttle valve is connected with the rod chamber of described folding mould oil cylinder, second oil-in of described shuttle valve is connected with the second main hydraulic fluid port of described inserted valve.
2. a kind of No leakage hydraulic pressure self-locking circuit for injection moulding machine mode-locking according to claim 1, characterized by further comprising overflow valve, the oil-in of described overflow valve is connected with the actuator port of described electromagnetism check valve, the control mouth of described inserted valve respectively, and the oil-out of described overflow valve is connected with described fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420567502.8U CN204172294U (en) | 2014-09-29 | 2014-09-29 | A kind of No leakage hydraulic pressure self-locking circuit for injection moulding machine mode-locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420567502.8U CN204172294U (en) | 2014-09-29 | 2014-09-29 | A kind of No leakage hydraulic pressure self-locking circuit for injection moulding machine mode-locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204172294U true CN204172294U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420567502.8U Active CN204172294U (en) | 2014-09-29 | 2014-09-29 | A kind of No leakage hydraulic pressure self-locking circuit for injection moulding machine mode-locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204172294U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482980A (en) * | 2021-06-29 | 2021-10-08 | 广州宝力特液压技术有限公司 | Differential circuit of opening and closing mold of tire vulcanizer |
| CN113757210A (en) * | 2021-10-18 | 2021-12-07 | 山东泰丰智能控制股份有限公司 | Two-way cartridge valve type hydraulic circuit of rapid press |
-
2014
- 2014-09-29 CN CN201420567502.8U patent/CN204172294U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482980A (en) * | 2021-06-29 | 2021-10-08 | 广州宝力特液压技术有限公司 | Differential circuit of opening and closing mold of tire vulcanizer |
| CN113482980B (en) * | 2021-06-29 | 2024-02-13 | 广州宝力特液压技术有限公司 | Mold opening and closing differential circuit of tire vulcanizer |
| CN113757210A (en) * | 2021-10-18 | 2021-12-07 | 山东泰丰智能控制股份有限公司 | Two-way cartridge valve type hydraulic circuit of rapid press |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315821 Jiangnan export processing trade zone, Beilun District, Ningbo City, Zhejiang Province Patentee after: Bole Intelligent Equipment Co.,Ltd. Address before: 315821 Jiangnan export processing trade zone, Beilun District, Ningbo City, Zhejiang Province Patentee before: NINGBO SHUANGMA MACHINERY INDUSTRY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 337000 Qingyuan Industrial Park, Anyuan Industrial Park, Anyuan District, Pingxiang City, Jiangxi Province Patentee after: Bole Intelligent Equipment Co.,Ltd. Address before: 315821 Jiangnan export processing trade zone, Beilun District, Ningbo City, Zhejiang Province Patentee before: Bole Intelligent Equipment Co.,Ltd. |
|
| CP03 | Change of name, title or address |