CN201702967U - Apparatus for implementing high-return force, quick return of hydrostatic press - Google Patents

Apparatus for implementing high-return force, quick return of hydrostatic press Download PDF

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Publication number
CN201702967U
CN201702967U CN2010202299621U CN201020229962U CN201702967U CN 201702967 U CN201702967 U CN 201702967U CN 2010202299621 U CN2010202299621 U CN 2010202299621U CN 201020229962 U CN201020229962 U CN 201020229962U CN 201702967 U CN201702967 U CN 201702967U
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CN
China
Prior art keywords
valve
cylinder
communicated
cavity
resorption
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
Application number
CN2010202299621U
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Chinese (zh)
Inventor
周富强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Sihao Hydraulic Machinery Co., Ltd.
Original Assignee
周富强
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 周富强 filed Critical 周富强
Priority to CN2010202299621U priority Critical patent/CN201702967U/en
Application granted granted Critical
Publication of CN201702967U publication Critical patent/CN201702967U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a hydrostatic press, and the purpose of the utility model is to provide an apparatus for implementing the high-return force, quick return of the hydrostatic press. The apparatus comprises an oil pump, a relief valve, reversing valves, one-way valves, main-cylinder and side-cylinder prefill valves, a main cylinder, side cylinders and the like. The apparatus is characterized in that: the oil pump is sequentially communicated with the one-way valves and the reversing valves, the relief valve is communicated in parallel between the oil pump and the one-way valves, one end of one reversing valve is communicated in parallel with the other reversing valves, the other end of the reversing valve is communicated with the upper cavities of the main cylinder and the side cylinders, which are communicated with an oil tank via the prefill valves, one reversing valve is communicated with the lower cavities of the side cylinders, the lower cylinders of the side cylinders are communicated with the oil tank via the one-way valves, and one reversing valve is communicated with the lower cavity of the main cylinder, which is communicated with the oil tank via one one-way valve. The utility model is mainly used in the production of hydrostatic press manufacturers.

Description

Hydraulic press is realized the device of big backhaul power quick return
Technical field
The utility model belongs to the hydraulic machinery technical field, and particularly hydraulic press is realized the device of big backhaul power quick return.
Background technology
The height of hydraulic press opening speed is an important parameter of weighing the hydraulic press performance, and for increasing work efficiency, we wish that generally its speed is fast, but, when withdrawing pattern power requires greatly, often cause opening speed slower, have a strong impact on the operating efficiency and the performance of hydraulic press.If strengthen the flow of pump, though opening speed is fast, increased power of motor, cause the cost height.
Summary of the invention
The purpose of this utility model is a slow-footed difficult problem when overcoming the big backhaul power of hydraulic press, provides the low hydraulic press of a kind of cost to realize the device of big backhaul power quick return.
During the hydraulic press backhaul, generally require backhaul power big in the withdrawing pattern stage, when mould and workpiece disengagement, backhaul this moment power is very little, under the certain prerequisite of power, provides possibility for improving opening speed.
For achieving the above object, technical solution of the present utility model is: a kind of hydraulic press is realized the device of big backhaul power quick return, by oil pump, overflow valve, check valve, the reversal valve of control oil cylinder uplink and downlink, the master cylinder cavity of resorption advances in the middle of the control, the reversal valve of oil extraction, control both sides cylinder cavity of resorption advances, the reversal valve of oil extraction, the check valve of control master cylinder cavity of resorption oil suction, the check valve of control side cylinder cavity of resorption oil suction, master cylinder and side cylinder prefill valve, master cylinder, compositions such as side cylinder, it is characterized in that: described oil pump and check valve, reversal valve is communicated with successively, the overflow valve parallel connection is communicated in by between pump and check valve, reversal valve one end is communicated with reversal valve is in parallel, the other end is connected with the epicoele of master cylinder and side cylinder, the master cylinder epicoele, side cylinder epicoele is communicated with fuel tank by prefill valve, reversal valve is communicated with the cavity of resorption of side cylinder, cylinder is communicated with fuel tank by check valve under the side cylinder, reversal valve is communicated with the master cylinder cavity of resorption, and the master cylinder cavity of resorption is communicated with fuel tank by check valve.
Described hydraulic press is realized the device of big backhaul power quick return, and tool is characterised in that: described reversal valve is an electro-hydraulic directional valve.
The beneficial effects of the utility model are: compared with the prior art, hydraulic press realizes that the device of big backhaul power quick return can realize big backhaul power quick return under the prerequisite that does not increase hydraulic press power, effectively improve the operating efficiency of hydraulic press, simultaneously, because middle master cylinder backhaul cavity area is big, its piston rod is thinner, can reduce manufacturing cost.
Description of drawings
Accompanying drawing is a structural representation of the present utility model;
Among the figure: the 1-oil pump, the 2-check valve, 3,4, the 5-reversal valve, the 6-overflow valve, 7,7 ', 7 " check valve, the 8-master cylinder, 9,9 '-the side cylinder, 10,10 ', 10 " prefill valves.
The specific embodiment
Now in conjunction with the accompanying drawings the utility model is described in further detail
Referring to accompanying drawing, the utility model is by oil pump 1, overflow valve 6, check valve 2, the reversal valve 3 of control oil cylinder uplink and downlink, the master cylinder cavity of resorption advances in the middle of the control, the reversal valve 4 of oil extraction, control both sides cylinder cavity of resorption advances, the reversal valve 5 of oil extraction, the check valve 7 of control master cylinder cavity of resorption oil suction, the check valve 7 of control side cylinder cavity of resorption oil suction ', 7 "; master cylinder and side cylinder prefill valve 10; 10 '; 10 ", master cylinder 8, side cylinder 9,9 ' wait composition, it is characterized in that: described oil pump 1 and check valve 2, reversal valve 3 is communicated with successively, overflow valve 6 parallel connections are communicated in 2 on oil pump 1 and check valve, reversal valve 3 one ends and reversal valve 4,5 in parallel connections, the other end and master cylinder 8 and side cylinder 9,9 ' epicoele be connected, master cylinder 8 epicoeles, side cylinder 9,9 ' epicoele is by prefill valve 10,10 ', 10 " be communicated with fuel tank; reversal valve 5 and side cylinder 9; 9 ' cavity of resorption be communicated with; side cylinder 9; 9 ' following cylinder by check valve 7 '; 7 " be communicated with fuel tank, reversal valve 4 is communicated with master cylinder 8 cavity of resorptions, and master cylinder 8 cavity of resorptions are communicated with fuel tank by check valve 7.
Described hydraulic press is realized the device of big backhaul power quick return, it is characterized in that: described reversal valve 3,4,5 is electro-hydraulic directional valve.
Hydraulic press of the present utility model realizes that the device of big backhaul power quick return is work like this, in the withdrawing pattern stage that requires big backhaul power, the master cylinder 8 cavity of resorption backhauls in the middle of the position, a left side (YA4 gets) of the left side of check valve 2, reversal valve 3 (YA1 gets), reversal valve 4 enters into of the fluid of oil pump 1 output, at this moment, the backhaul chamber piston base area of middle master cylinder 8 is big, so big backhaul power can be provided, satisfy the requirement of big backhaul power of withdrawing pattern stage.After the demoulding, reversal valve 4 is got back to meta (YA4 dead electricity), the backhaul chamber fuel cut-off of middle master cylinder 8, fluid enters into two avris cylinders 9, the backhaul of 9 ' cavity of resorption through the position, a left side (YA3 gets) of reversal valve 5, at this moment, two avris cylinders 9,9 ' backhaul chamber piston base area are little, and under the constant situation of oil pump flow, opening speed is fast.
In this device, overflow valve 6 be a safety effect, check valve 7 ', 7,7 " when playing backhaul to backhaul chamber, two avris cylinders 9, the repairing effect of 9 ' backhaul chamber of master cylinder 8, prefill valve 10,10 ', 10 " play quick descending repairing and backhaul oil extraction effect.

Claims (2)

1. a hydraulic press is realized the device of big backhaul power quick return, by oil pump (1), overflow valve (6), check valve (2), the reversal valve (3) of control oil cylinder uplink and downlink, the master cylinder cavity of resorption advances in the middle of the control, the reversal valve of oil extraction (4), control both sides cylinder cavity of resorption advances, the reversal valve of oil extraction (5), the check valve (7) of control master cylinder cavity of resorption oil suction, the check valve of control side cylinder cavity of resorption oil suction (7 ', 7 "); master cylinder and side cylinder prefill valve (10; 10 '; 10 "), master cylinder (8), side cylinder (9,9 ') etc. composition, it is characterized in that: described oil pump (1) and check valve (2), reversal valve (3) is communicated with successively, overflow valve (6) parallel connection is communicated between oil pump (1) and check valve (2), reversal valve (3) one ends and reversal valve (4,5) the in parallel connection, the other end and master cylinder (8) and side cylinder (9,9 ') epicoele be connected, master cylinder (8) epicoele, side cylinder (9,9 ') epicoele is by prefill valve (10,10 ', 10 ") be communicated with fuel tank; reversal valve (5) and side cylinder (9; 9 ') cavity of resorption be communicated with; the side cylinder (9; 9 ') cavity of resorption by check valve (7 '; 7 ") be communicated with fuel tank, reversal valve (4) is communicated with master cylinder (8) cavity of resorption, and master cylinder (8) cavity of resorption is communicated with fuel tank by check valve (7).
2. hydraulic press according to claim 1 is realized the device of big backhaul power quick return, it is characterized in that: described reversal valve (3,4,5) is an electro-hydraulic directional valve.
CN2010202299621U 2010-06-17 2010-06-17 Apparatus for implementing high-return force, quick return of hydrostatic press Expired - Fee Related CN201702967U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202299621U CN201702967U (en) 2010-06-17 2010-06-17 Apparatus for implementing high-return force, quick return of hydrostatic press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202299621U CN201702967U (en) 2010-06-17 2010-06-17 Apparatus for implementing high-return force, quick return of hydrostatic press

Publications (1)

Publication Number Publication Date
CN201702967U true CN201702967U (en) 2011-01-12

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102166832A (en) * 2011-01-17 2011-08-31 合肥合锻机床股份有限公司 Energy-saving and consumption-reducing hydraulic system with multistage pressure control for large hydraulic machine
WO2014101252A1 (en) * 2012-12-31 2014-07-03 昆山新鸿企业机械制造有限公司 Structure of balance cylinder for hydraulic machine
CN104647800A (en) * 2015-02-04 2015-05-27 中精集团有限公司 High-and-low-pressure conversion function optimizing hydraulic system for full-automatic hydraulic fine-blanking press
CN107364165A (en) * 2017-07-03 2017-11-21 江苏国力锻压机床有限公司 A kind of hydraulic press for possessing buffering and sliding block weight balancing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102166832A (en) * 2011-01-17 2011-08-31 合肥合锻机床股份有限公司 Energy-saving and consumption-reducing hydraulic system with multistage pressure control for large hydraulic machine
WO2014101252A1 (en) * 2012-12-31 2014-07-03 昆山新鸿企业机械制造有限公司 Structure of balance cylinder for hydraulic machine
CN104647800A (en) * 2015-02-04 2015-05-27 中精集团有限公司 High-and-low-pressure conversion function optimizing hydraulic system for full-automatic hydraulic fine-blanking press
CN107364165A (en) * 2017-07-03 2017-11-21 江苏国力锻压机床有限公司 A kind of hydraulic press for possessing buffering and sliding block weight balancing
CN107364165B (en) * 2017-07-03 2020-02-07 江苏国力锻压机床有限公司 Hydraulic machine with buffering and slider weight balancing functions

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20120409

Address after: 528200 Guangdong Province Nanhai District of Foshan City, Guicheng Ping Xia Beizhou table Hong Jiao Industrial Zone

Patentee after: Foshan Sihao Hydraulic Machinery Co., Ltd.

Address before: 528000 Guangdong city of Foshan Province Ping Xia Hong Kau Industrial Zone Beizhou table

Patentee before: Zhou Fuqiang

COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 528000 FOSHAN, GUANGDONG PROVINCE TO: 528200 FOSHAN, GUANGDONG PROVINCE

ASS Succession or assignment of patent right

Owner name: FOSHAN SIHAO HYDRAULIC MACHINERY CO., LTD.

Free format text: FORMER OWNER: ZHOU FUQIANG

Effective date: 20120409

C41 Transfer of patent application or patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110112

Termination date: 20140617

EXPY Termination of patent right or utility model