CN216343178U - Hydraulic quick oil injection and oil return structure - Google Patents
Hydraulic quick oil injection and oil return structure Download PDFInfo
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- CN216343178U CN216343178U CN202123135329.3U CN202123135329U CN216343178U CN 216343178 U CN216343178 U CN 216343178U CN 202123135329 U CN202123135329 U CN 202123135329U CN 216343178 U CN216343178 U CN 216343178U
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- 239000007924 injection Substances 0.000 title claims abstract description 12
- 238000002347 injection Methods 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000003921 oil Substances 0.000 description 146
- 239000000047 product Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000010720 hydraulic oil Substances 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of oil presses and discloses a hydraulic quick oil injection and return structure which comprises an oil cylinder and an oil tank, wherein a liquid filling valve is fixedly installed at the top end of the oil cylinder, a sealing ring is fixedly installed on the upper surface of the liquid filling valve, a connecting pipe seat is arranged on the upper surface of the liquid filling valve, and a connecting pipe is fixedly installed at the upper port of the connecting pipe seat. According to the hydraulic rapid oil injection and return structure, the channel between the lower cavity of the oil cylinder and the channel of the oil tank are completely closed, the oil pump rapidly supplies oil to the lower cavity of the oil cylinder, the oil cylinder drives the sliding block and the upper die to rapidly rise under the action of oil pressure of the lower cavity, the liquid filling valve of the upper cavity of the oil cylinder is opened at the same time, a large amount of oil in the upper cavity of the oil cylinder is rapidly discharged back to the oil tank through the liquid filling valve, the liquid filling valve is closed when the machine slowly descends (closes) and pressurizes, the oil supplied to the upper cavity of the oil cylinder by the oil pump is prevented from flowing back to the oil tank, the upper cavity of the oil cylinder can be pressurized to complete product pressing, and the efficiency of pressing products by the oil press is improved.
Description
Technical Field
The utility model relates to the technical field of oil presses, in particular to a hydraulic quick oil injection and return structure.
Background
The hydraulic press (a kind of hydraulic press) is a hydraulic press which uses special hydraulic oil as working medium, uses hydraulic pump as power source, and makes the hydraulic oil enter into oil cylinder/piston through hydraulic pipeline by the action force of pump, then there are several groups of mutually matched sealing elements in the oil cylinder/piston, the sealing at different positions are different, but all play the role of sealing, so the hydraulic oil can not be leaked. Finally, the hydraulic oil circulates in the oil tank through the one-way valve to enable the oil cylinder/piston to do work circularly, so that a certain mechanical action is completed to form a machine with productivity.
The hydraulic oil injection and return speed of the existing hydraulic press is low, so that the molding efficiency of a product pressed by the oil press is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hydraulic quick oil injection and return structure to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a quick oiling of hydraulic pressure and oil return structure, includes hydro-cylinder and oil tank, the top fixed mounting of hydro-cylinder has the prefill valve, the last fixed surface of prefill valve installs the sealing washer, the upper surface of prefill valve is provided with the connection tube socket, the last port fixed mounting who connects the tube socket has the connecting pipe, the other end fixed mounting of connecting pipe is in the front of oil tank, the lower extreme fixed mounting of hydro-cylinder has last mould.
Preferably, the lower end of the connecting pipe seat is fixedly arranged inside the sealing ring, an oil port is formed in the front of the oil tank, the connecting pipe is fixedly arranged on the front of the oil port, and oil can conveniently enter the oil cylinder from the oil tank due to the arrangement of the connecting pipe.
Preferably, the liquid charging valve is internally provided with a valve rod, the upper end of a rod body of the valve rod is sleeved with a spring, and the valve rod can be conveniently reset by the aid of the spring.
Preferably, the lower extreme fixed mounting of valve rod has the valve plate, the lower extreme of valve rod inserts the upper port inside of hydro-cylinder, and the inside of the steerable fluid entering hydro-cylinder of its valve rod and setting up of valve plate.
Preferably, a lower pressing plate is arranged at the upper end of the inside of the oil cylinder, a pressure relief hole is formed in the upper end of the right wall of the oil cylinder, and the oil cylinder can conveniently relieve pressure through the pressure relief hole.
Compared with the prior art, the utility model provides a hydraulic quick oil injection and return structure. The method has the following beneficial effects:
the hydraulic quick oil filling and oil returning structure is characterized in that each oil cylinder which moves through a main machine sliding block is provided with a liquid filling valve, when a machine starts to work, the sliding block needs to descend quickly to enable an upper die and a lower die to approach quickly, at the moment, a channel (a big/small valve) between an oil cylinder lower cavity and an oil tank is opened completely, oil in the oil cylinder lower cavity is forced to be quickly discharged back to the oil tank due to the weight of the sliding block and the upper die, the sliding block descends quickly, meanwhile, a negative pressure is formed in an oil cylinder upper cavity, an oil path leads oil to a liquid filling valve control opening to enable the liquid filling valve to be opened, the oil cylinder upper cavity quickly absorbs oil from the oil tank through the liquid filling valve to supplement oil, when the upper die and the lower die are close to a die assembly position, liquid filling is closed, a high-pressure pipeline control valve is opened to fill high-pressure oil into the oil cylinder upper cavity, the oil press obtains required pressure, and after a product is pressed and die is opened, the sliding block needs to rise quickly (to an original top dead center position) to save rising time, at the moment, the channels of the lower cavity of the oil cylinder and the oil tank are completely closed, the oil pump (a plurality of pumps) quickly supplies oil to the lower cavity of the oil cylinder, the oil cylinder drives the sliding block and the upper die to quickly rise under the action of the oil pressure of the lower cavity, meanwhile, the liquid filling valve of the upper cavity of the oil cylinder is opened, a large amount of oil in the upper cavity of the oil cylinder is quickly discharged back to the oil tank through the liquid filling valve, the liquid filling valve is closed when the machine slowly descends (closes) and pressurizes, the oil supplied to the upper cavity of the oil cylinder by the oil pump is prevented from flowing back to the oil tank, the upper cavity of the oil cylinder can be pressurized to complete product pressing, the speed of hydraulic quick oil filling and oil returning is improved, and the efficiency of product pressing by the oil press is further improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic cross-sectional view of an integral part of the present invention;
FIG. 2 is a schematic cross-sectional view of the front side of the present invention;
FIG. 3 is a schematic view of the left side of the present invention;
FIG. 4 is a schematic cross-sectional view of a prefill valve of the present invention.
In the figure: 1. an oil cylinder; 2. an oil tank; 3. a liquid charging valve; 4. a connecting pipe; 5. connecting a pipe seat; 6. a spring; 7. a seal ring; 8. a valve stem; 9. a valve plate; 10. a pressure relief vent; 11. a lower pressing plate; 12. and (4) an upper die.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a quick oiling of hydraulic pressure and oil return structure, includes hydro-cylinder 1 and oil tank 2, and the top fixed mounting of hydro-cylinder 1 has prefill valve 3, and the last fixed surface of prefill valve 3 installs sealing washer 7, and the upper surface of prefill valve 3 is provided with connecting tube seat 5, and the last port fixed mounting of connecting tube seat 5 has connecting pipe 4, and the other end fixed mounting of connecting pipe 4 is in the front of oil tank 2, and the lower extreme fixed mounting of hydro-cylinder 1 has last mould 12.
The lower end of a connecting pipe seat 5 is fixedly arranged inside a sealing ring 7, the front side of an oil tank 2 is provided with an oil port, a connecting pipe 4 is fixedly arranged on the front side of the oil port, the connecting pipe 4 is arranged to facilitate oil to enter the oil cylinder 1 from the oil tank 2, a valve rod 8 is arranged inside a liquid filling valve 3, the upper end of a rod body of the valve rod 8 is sleeved with a spring 6, the spring 6 is arranged to facilitate the valve rod 8 to reset, the lower end of the valve rod 8 is fixedly provided with a valve plate 9, the lower end of the valve rod 8 is inserted into the inner part of the upper end port of the oil cylinder 1, the valve rod 8 and the valve plate 9 are arranged to control the oil to enter the oil cylinder 1, the upper end inside of the oil cylinder 1 is provided with a lower pressing plate 11, the upper end of the right wall of the oil cylinder 1 is provided with a pressure relief hole 10, the pressure relief hole 10 is arranged to facilitate the oil cylinder 1 to perform pressure relief, the liquid filling valve 3 is arranged on each oil cylinder 1 which moves through a main machine slide block, when the machine starts to work, the slide block needs to descend rapidly to enable the upper die and the lower die to approach rapidly, at the moment, channels (two paths of large/small valves) of a lower cavity of the oil cylinder 1 and an oil tank 2 are all opened, oil in the lower cavity of the oil cylinder 1 is forced to be quickly discharged back to the oil tank 2 due to the weight of the slide block and the upper die 12, the slide block descends rapidly, meanwhile, negative pressure is formed in an upper cavity of the oil cylinder 1, oil is introduced to a control port of a liquid filling valve 3 through an oil circuit to enable the liquid filling valve 3 to be opened, the upper cavity of the oil cylinder 1 absorbs oil from the oil tank 2 rapidly through the liquid filling valve 3 to replenish the oil, when the upper die and the lower die are close to a die assembly position, the liquid filling 3 is closed, a high-pressure pipeline control valve is opened to fill high-pressure oil in the upper cavity of the oil cylinder 1, the oil press obtains required pressure, after pressing and opening of a product, the slide block needs to rise rapidly (to an original top dead center position) to save rising time, at the moment, the channels of the lower cavity of the oil cylinder 1 and the oil tank 2 are all closed, an oil pump (a plurality of pumps) supplies oil pump to the lower cavity of the oil cylinder 1, under the action of the oil pressure of the lower cavity, the oil cylinder 1 drives the sliding block and the upper die to ascend at a speed of 12, meanwhile, the liquid filling valve 3 of the upper cavity of the oil cylinder 1 is opened, a large amount of oil in the upper cavity of the oil cylinder 1 is quickly discharged back to the oil tank 2 through the liquid filling valve 3, the liquid filling valve 3 is closed when the machine descends (closes) at a slow speed and pressurizes, the oil supplied to the upper cavity of the oil cylinder 1 by the oil pump is prevented from flowing back to the oil tank 2, the upper cavity of the oil cylinder can be pressurized to complete product pressing, the speed of hydraulic quick oil filling and oil returning is improved, and the efficiency of pressing products by the oil press is further improved.
In the actual operation process, when the device is used, each oil cylinder 1 which moves through a main machine sliding block is provided with a liquid filling valve 3, when the machine starts to work, the sliding block needs to descend rapidly to enable an upper die and a lower die to approach rapidly, at the moment, channels (two paths of large/small valves) of a lower cavity of the oil cylinder 1 and an oil tank 2 are all opened, due to the weight of the sliding block and an upper die 12, oil in the lower cavity of the oil cylinder 1 is forced to be discharged back to the oil tank 2 rapidly, the sliding block descends rapidly, meanwhile, an upper cavity of the oil cylinder 1 forms negative pressure, an oil path leads oil to a control port of the liquid filling valve 3 to enable the liquid filling valve 3 to be opened, the upper cavity of the oil cylinder 1 absorbs oil rapidly through the liquid filling valve 3 to supplement the oil, when the upper die and the lower die approach a die assembly position, the liquid filling 3 is closed, a high-pressure pipeline control valve is opened to fill high-pressure oil into the upper cavity of the oil cylinder 1, so that the oil press obtains required pressure, after the product is pressed and the die is opened, the sliding block needs to ascend rapidly (to the position of an original top dead center) to save the ascending time, at the moment, the channels of the lower cavity of the oil cylinder 1 and the oil tank 2 are completely closed, the oil pump (a plurality of pumps) quickly supplies oil to the lower cavity of the oil cylinder 1, the oil cylinder 1 drives the sliding block and the upper die 12 to ascend at a high speed under the action of the oil pressure of the lower cavity, the liquid filling valve 3 of the upper cavity of the oil cylinder 1 is opened at the same time, a large amount of oil in the upper cavity of the oil cylinder 1 is quickly discharged back to the oil tank 2 through the liquid filling valve 3, the liquid filling valve 3 is closed when the machine descends at a low speed (mold closing) and pressurizes, the oil supplied by the oil pump to the upper cavity of the oil cylinder 1 is prevented from flowing back to the oil tank 2, the upper cavity of the oil cylinder can be pressurized to complete product pressing, the speed of hydraulic quick oil filling and oil returning is increased, and the efficiency of product pressing by the oil press is further improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
Claims (5)
1. The utility model provides a quick oiling of hydraulic pressure and oil return structure, includes hydro-cylinder (1) and oil tank (2), its characterized in that: the top fixed mounting of hydro-cylinder (1) has prefill valve (3), the last fixed surface of prefill valve (3) installs sealing washer (7), the upper surface of prefill valve (3) is provided with connecting tube seat (5), the last port fixed mounting of connecting tube seat (5) has connecting pipe (4), the other end fixed mounting of connecting pipe (4) is in the front of oil tank (2), the lower extreme fixed mounting of hydro-cylinder (1) has last mould (12).
2. The hydraulic rapid oil injection and return structure of claim 1, wherein: the lower end of the connecting pipe seat (5) is fixedly arranged inside the sealing ring (7), an oil port is formed in the front of the oil tank (2), and the connecting pipe (4) is fixedly arranged on the front of the oil port.
3. The hydraulic rapid oil injection and return structure of claim 1, wherein: the liquid charging valve is characterized in that a valve rod (8) is arranged inside the liquid charging valve (3), and a spring (6) is sleeved at the upper end of a rod body of the valve rod (8).
4. The hydraulic rapid oil injection and return structure of claim 3, wherein: the lower extreme fixed mounting of valve rod (8) has valve plate (9), the lower extreme of valve rod (8) inserts the upper port inside of hydro-cylinder (1).
5. The hydraulic rapid oil injection and return structure of claim 1, wherein: the oil cylinder is characterized in that a lower pressing plate (11) is arranged at the upper end of the inside of the oil cylinder (1), and a pressure relief hole (10) is formed in the upper end of the right wall of the oil cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123135329.3U CN216343178U (en) | 2021-12-13 | 2021-12-13 | Hydraulic quick oil injection and oil return structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123135329.3U CN216343178U (en) | 2021-12-13 | 2021-12-13 | Hydraulic quick oil injection and oil return structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216343178U true CN216343178U (en) | 2022-04-19 |
Family
ID=81164488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123135329.3U Active CN216343178U (en) | 2021-12-13 | 2021-12-13 | Hydraulic quick oil injection and oil return structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216343178U (en) |
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2021
- 2021-12-13 CN CN202123135329.3U patent/CN216343178U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A hydraulic fast oil injection and return structure Granted publication date: 20220419 Pledgee: China Co. truction Bank Corp Boluo branch Pledgor: Guangdong Honglin oil pressure intelligent equipment Technology Co.,Ltd. Registration number: Y2024980011975 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |