CN209908877U - Driving device of rotary oil cylinder - Google Patents
Driving device of rotary oil cylinder Download PDFInfo
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- CN209908877U CN209908877U CN201920698848.4U CN201920698848U CN209908877U CN 209908877 U CN209908877 U CN 209908877U CN 201920698848 U CN201920698848 U CN 201920698848U CN 209908877 U CN209908877 U CN 209908877U
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Abstract
The utility model discloses a drive device of a rotary oil cylinder, which adopts a gas-liquid supercharging device to replace the prior power source device based on a motor-driven oil pump, wherein the gas-liquid supercharging device is used for filling compressed air into a large-area piston cavity, generating larger pressure on a small-area piston through the conversion action of an area ratio, and controlling the rotary oil cylinder to work by providing high-pressure hydraulic oil through a reversing valve, wherein the medium filled into the small-area piston cavity is hydraulic oil; because the gas-liquid supercharging device adopts compressed air as power, noise generated when a motor operates is avoided, the gas-liquid supercharging device is quite quiet, and meanwhile, when the rotary oil cylinder is in a clamping state, the gas-liquid supercharging device is basically in a static holding state, hydraulic oil overflow phenomenon is avoided, heat is basically not generated, so that the temperature of the hydraulic oil cannot be seriously increased, and meanwhile, the compressed air is basically not consumed in the static holding state of the gas-liquid supercharging device, so that energy loss is avoided, and the gas-liquid supercharging device is energy-saving and environment-friendly.
Description
Technical Field
The utility model relates to an automatic hydraulic drive of lathe device especially relates to a drive arrangement of rotary cylinder.
Background
The automatic lathe generally has a workpiece automatic clamping function, the automatic clamping is completed through the push-pull action of the rotary oil cylinder, and the control on the rotary oil cylinder is generally realized by adopting a motor-driven oil pump to provide pressure oil for a reversing valve at present. In the process of machining of the automatic lathe, a workpiece is always in a clamping state, and the rotary oil cylinder needs to keep pressure for a long time to reliably clamp the workpiece.
The oil pump only needs to provide the interior leakage of few pressure oil compensation hydraulic system in this process, however the structure of current adoption motor drive oil pump as the power supply, because the pump discharge capacity is invariable, consequently spills over unnecessary pressure oil to the oil tank through the overflow valve in this operating mode, will produce a large amount of heats and cause the hydraulic oil intensification, and the motor also consumes very big electric energy, in addition, because the long-time high-pressure operation of oil pump will produce very big noise, influences the comfort level of surrounding environment. Even if some manufacturers adopt the variable displacement oil pump, the displacement of the oil pump is automatically reduced in the working condition (pressure maintaining), but the variable characteristic of the variable displacement oil pump is limited, and the phenomenon of overflow heating still exists. Therefore, the existing rotary oil cylinder driving device has the problems of high power consumption, serious heat generation and high noise.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
An object of the utility model is to provide a drive arrangement of gyration hydro-cylinder aims at solving current gyration hydro-cylinder drive arrangement and has power consumptive many, and it is serious to generate heat, problem that the noise is big.
The technical scheme of the utility model as follows: a driving device of a rotary oil cylinder comprises the rotary oil cylinder and a gas-liquid supercharging device, wherein the gas-liquid supercharging device is connected with the rotary oil cylinder, hydraulic oil is output to the rotary oil cylinder after being subjected to high pressure through area ratio conversion by the gas-liquid supercharging device, the rotary oil cylinder is pushed to clamp a workpiece, and when the rotary oil cylinder does not need to clamp the workpiece, high-pressure hydraulic oil flows back into the gas-liquid supercharging device.
The driving device of the rotary oil cylinder comprises a cavity and a double-head piston, wherein the cavity comprises a first cavity and a second cavity, the first cavity is communicated with the second cavity, the double-head piston comprises a rod body, a first piston head and a second piston head, the first piston head is arranged at one end of the rod body, the second piston head is arranged at the other end of the rod body, the first piston head is positioned in the first cavity and moves back and forth in the first cavity, and the second piston head is positioned in the second cavity and moves back and forth in the second cavity; the first piston head including a first piston face and a second piston face, the second piston head including a third piston face and a fourth piston face, one end of the rod body is connected with the second piston surface, the other end of the rod body is connected with the third piston surface, a closed hydraulic oil cavity for storing hydraulic oil is formed between the first piston surface and the first cavity, a closed first compressed air cavity is formed between the fourth piston surface and the second cavity, a closed second compressed air cavity is formed between the second piston surface, the third piston surface, the first cavity and the second cavity, an oil inlet and an oil outlet are arranged on the high-pressure hydraulic oil cavity, the oil outlet is connected with a hydraulic oil inlet of the rotary oil cylinder, the oil inlet is connected with a hydraulic oil outlet of the rotary oil cylinder, the first compressed air cavity and the second compressed air cavity are both externally connected with compressed air, and the area of the fourth piston surface is larger than that of the first piston surface.
The driving device of the rotary oil cylinder comprises a reversing valve, wherein a first liquid inlet of the reversing valve is connected with an oil outlet, a first liquid outlet of the reversing valve is connected with a hydraulic oil inlet of the rotary oil cylinder, a second liquid inlet of the reversing valve is connected with a hydraulic oil outlet of the rotary oil cylinder, and a second liquid outlet of the reversing valve is connected with an oil inlet.
The driving device of the rotary oil cylinder further comprises a pneumatic reversing valve, an air inlet of the pneumatic reversing valve is externally connected with compressed air, a first air outlet of the pneumatic reversing valve is connected with the first compressed air cavity, and a second air outlet of the pneumatic reversing valve is connected with the second compressed air cavity.
The driving device of the rotary oil cylinder is characterized in that a liquid oil outlet one-way valve is arranged at an oil outlet, a liquid oil inlet one-way valve is arranged at an oil inlet, the liquid oil outlet one-way valve is connected with a hydraulic oil inlet of the rotary oil cylinder, and the liquid oil inlet one-way valve is connected with a hydraulic oil outlet of the rotary oil cylinder.
The driving device of the rotary oil cylinder further comprises a cooler, the cooler is connected with a hydraulic oil outlet of the rotary oil cylinder, the cooler is connected with an oil inlet, and hydraulic oil discharged by the rotary oil cylinder flows into the gas-liquid supercharging device after being cooled by the cooler.
The driving device of the rotary oil cylinder further comprises an energy accumulator used for storing redundant hydraulic oil, the energy accumulator is connected with the oil outlet, and the energy accumulator is connected with a hydraulic oil inlet of the rotary oil cylinder.
The driving device of the rotary oil cylinder further comprises a hydraulic gauge for detecting the liquid pressure of the oil outlet.
The utility model has the advantages that: the utility model provides a drive arrangement of rotary oil cylinder adopts the gas-liquid supercharging device to replace the power source device based on the motor drive oil pump now, and the gas-liquid supercharging device is through filling compressed air into the large area piston cavity, produces great pressure on the small area piston through the conversion of area ratio, and the medium that the small area piston cavity was filled is hydraulic oil, controls rotary oil cylinder work through providing high-pressure hydraulic oil through the switching-over valve; because the gas-liquid supercharging device adopts compressed air as power, noise generated when a motor operates is avoided, the gas-liquid supercharging device is quite quiet, and meanwhile, when the rotary oil cylinder is in a clamping state, the gas-liquid supercharging device is basically in a static holding state, hydraulic oil overflow phenomenon is avoided, heat is basically not generated, so that the temperature of the hydraulic oil cannot be seriously increased, and meanwhile, the compressed air is basically not consumed in the static holding state of the gas-liquid supercharging device, so that energy loss is avoided, and the gas-liquid supercharging device is energy-saving and environment-friendly.
Drawings
Fig. 1 is a schematic structural diagram of a driving device of a middle rotary cylinder of the present invention.
Fig. 2 is a schematic structural view of the gas-liquid pressure device of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
As shown in fig. 1, a driving device of a rotary cylinder comprises a rotary cylinder 3 and a gas-liquid supercharging device 4, wherein the gas-liquid supercharging device 4 is connected with the rotary cylinder 3, the gas-liquid supercharging device 4 enables hydraulic oil to obtain high pressure through conversion of an area ratio and then outputs the high pressure hydraulic oil to the rotary cylinder 3 to push the rotary cylinder 3 to clamp a workpiece, and when the rotary cylinder 3 does not need to clamp the workpiece, the high pressure hydraulic oil flows back to the gas-liquid supercharging device 4.
Further, as shown in fig. 2, the gas-liquid supercharging device 4 includes a cavity 41 and a double-headed piston 42, the cavity 41 includes a first cavity 411 and a second cavity 412, the first cavity 411 and the second cavity 412 are communicated, the double-headed piston 42 includes a rod 421, a first piston head 422 and a second piston head 423, the first piston head 422 is disposed at one end of the rod 421, the second piston head 423 is disposed at the other end of the rod 421, the first piston head 422 is located in the first cavity and moves back and forth in the first cavity 411, and the second piston head 423 is located in the second cavity and moves back and forth in the second cavity 412; the first piston head 422 comprises a first piston surface and a second piston surface, the second piston head 483 comprises a third piston surface and a fourth piston surface, one end of the rod body 421 is connected with the second piston surface, the other end of the rod body 421 is connected with the third piston surface, a closed hydraulic oil cavity for storing hydraulic oil is formed between the first piston surface and the first cavity 411, a closed first compressed air cavity is formed between the fourth piston surface and the second cavity 412, a closed second compressed air cavity is formed between the second piston surface, the third piston surface, the first cavity 411 and the second cavity 412, an oil inlet and an oil outlet are arranged on the high-pressure hydraulic oil cavity, the oil outlet is connected with a hydraulic oil inlet of the rotary oil cylinder 3, the oil inlet is connected with a hydraulic oil outlet of the rotary oil cylinder 3, and the first compressed air cavity and the second compressed air cavity are both externally connected with compressed air, the area of the fourth piston face is greater than the area of the first piston face: compressed air is firstly introduced into the first compressed air cavity, the compressed air pushes the double-end piston 42 to move towards the direction of the first cavity 411, and the area of the fourth piston surface is larger than that of the first piston surface, so that higher liquid pressure is generated in the hydraulic oil cavity to push hydraulic oil to enter the rotary oil cylinder 3 through the oil outlet and a hydraulic oil inlet of the rotary oil cylinder 3, the rotary oil cylinder 3 is pushed to clamp a workpiece, when the rotary oil cylinder 3 does not need to clamp the workpiece, introduction of the compressed air into the first compressed air cavity is stopped, meanwhile, compressed air is introduced into the second compressed air cavity, the compressed air pushes the double-end piston 42 to move towards the direction of the second cavity 412, negative pressure is generated in the hydraulic oil cavity, and the hydraulic oil in the rotary oil cylinder 3 is sucked back into the hydraulic oil cavity through a hydraulic oil outlet and an oil inlet.
In order to conveniently control the inlet and outlet of hydraulic oil in the rotary oil cylinder 3, the driving device of the rotary oil cylinder further comprises a reversing valve 2, a first liquid inlet of the reversing valve 2 is connected with an oil outlet, a first liquid outlet of the reversing valve 2 is connected with a hydraulic oil inlet of the rotary oil cylinder 3, a second liquid inlet of the reversing valve 2 is connected with a hydraulic oil outlet of the rotary oil cylinder 3, and a second liquid outlet of the reversing valve 2 is connected with an oil inlet.
In order to conveniently control whether the first compressed air cavity and the second compressed air cavity are filled with compressed air or not, the driving device of the rotary oil cylinder further comprises a pneumatic reversing valve 43, the air inlet of the pneumatic reversing valve 43 is externally connected with compressed air, the first air outlet of the pneumatic reversing valve 43 is connected with the first compressed air cavity, and the second air outlet of the pneumatic reversing valve 43 is connected with the second compressed air cavity.
Further, in order to prevent hydraulic oil from flowing back between the rotary oil cylinder 3 and the gas-liquid supercharging device 4 at will, a liquid oil outlet one-way valve 44 is arranged at the oil outlet, a liquid oil inlet one-way valve 45 is arranged at the oil inlet, the liquid oil outlet one-way valve 44 is connected with a first liquid inlet of the reversing valve 2, and the liquid oil inlet one-way valve 45 is connected with a second liquid outlet of the reversing valve 2.
In order to ensure that the hydraulic oil is always at a proper temperature, the driving device of the rotary oil cylinder further comprises a cooler 47, the cooler 47 is connected with a second liquid outlet of the reversing valve 2, the cooler 47 is connected with the liquid oil inlet one-way valve 45, and the hydraulic oil discharged by the rotary oil cylinder 3 flows into the gas-liquid supercharging device 4 after being cooled by the cooler 47.
In order to reduce the configuration of the gas-liquid supercharging device 4 and reduce the overall dimension and the manufacturing cost of the gas-liquid supercharging device 4, the driving device of the rotary oil cylinder further comprises an energy storage device 5 for storing redundant hydraulic oil, the energy storage device 5 is connected with an oil outlet of the gas-liquid supercharging device 4, and the energy storage device 5 is connected with a hydraulic oil inlet of the rotary oil cylinder 3. Because the rotary oil cylinder 3 is required to be kept for a period of time when clamping a workpiece, no energy is consumed in the process, the energy accumulator 5 can store the high-pressure hydraulic oil output by the gas-liquid supercharging device 4, when the rotary oil cylinder 3 works in the next period (such as loosening the workpiece and clamping the workpiece again), the energy accumulator 5 releases the high-pressure hydraulic oil to control the rotary oil cylinder 3 to work through the reversing valve 2, and the gas-liquid supercharging device 4 cannot be relied on to provide hydraulic oil with enough flow, so that the gas-liquid supercharging device 4 can meet the driving requirement of the rotary oil cylinder 3 by adopting a small configuration.
In order to know the liquid pressure in the hydraulic oil cavity in a tender and timely manner, the driving device of the rotary oil cylinder further comprises a hydraulic gauge 48 for detecting the liquid pressure of the oil outlet.
In the technical scheme, the existing power source device based on a motor-driven oil pump is replaced by the gas-liquid supercharging device 4, the gas-liquid supercharging device 4 charges compressed air into a large-area piston cavity, generates larger pressure on a small-area piston through the conversion action of an area ratio, charges a medium into the small-area piston cavity as hydraulic oil, and controls the rotary oil cylinder 3 to work by supplying high-pressure hydraulic oil through the reversing valve 2; because the gas-liquid supercharging device 4 adopts compressed air as power, noise generated when a motor operates is avoided, the gas-liquid supercharging device 4 is quite quiet, and meanwhile, when the rotary oil cylinder 3 is in a clamping state, the gas-liquid supercharging device 4 is basically in a static holding state, hydraulic oil overflow is avoided, heat is basically not generated, the hydraulic oil is not heated seriously, and meanwhile, the compressed air is basically not consumed in the static holding state of the gas-liquid supercharging device 4, so that energy loss is avoided, and the energy-saving and environment-friendly effects are achieved.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (8)
1. The driving device of the rotary oil cylinder is characterized by comprising the rotary oil cylinder and a gas-liquid supercharging device, wherein the gas-liquid supercharging device is connected with the rotary oil cylinder, hydraulic oil is output to the rotary oil cylinder after obtaining high pressure through conversion of an area ratio by the gas-liquid supercharging device, the rotary oil cylinder is pushed to clamp a workpiece, and when the rotary oil cylinder does not need to clamp the workpiece, high-pressure hydraulic oil flows back to the gas-liquid supercharging device.
2. The driving device of the slewing cylinder according to claim 1, wherein the gas-liquid pressurizing device comprises a cavity and a double-headed piston, the cavity comprises a first cavity and a second cavity, the first cavity is communicated with the second cavity, the double-headed piston comprises a rod body, a first piston head and a second piston head, the first piston head is arranged at one end of the rod body, the second piston head is arranged at the other end of the rod body, the first piston head is positioned in the first cavity and moves back and forth in the first cavity, and the second piston head is positioned in the second cavity and moves back and forth in the second cavity; the first piston head including a first piston face and a second piston face, the second piston head including a third piston face and a fourth piston face, one end of the rod body is connected with the second piston surface, the other end of the rod body is connected with the third piston surface, a closed hydraulic oil cavity for storing hydraulic oil is formed between the first piston surface and the first cavity, a closed first compressed air cavity is formed between the fourth piston surface and the second cavity, a closed second compressed air cavity is formed between the second piston surface, the third piston surface, the first cavity and the second cavity, an oil inlet and an oil outlet are arranged on the high-pressure hydraulic oil cavity, the oil outlet is connected with a hydraulic oil inlet of the rotary oil cylinder, the oil inlet is connected with a hydraulic oil outlet of the rotary oil cylinder, the first compressed air cavity and the second compressed air cavity are both externally connected with compressed air, and the area of the fourth piston surface is larger than that of the first piston surface.
3. The driving device of the rotary oil cylinder according to claim 2, further comprising a reversing valve, wherein a first liquid inlet of the reversing valve is connected with the oil outlet, a first liquid outlet of the reversing valve is connected with a hydraulic oil inlet of the rotary oil cylinder, a second liquid inlet of the reversing valve is connected with a hydraulic oil outlet of the rotary oil cylinder, and a second liquid outlet of the reversing valve is connected with the oil inlet.
4. The drive device of the slewing cylinder as claimed in claim 2, further comprising a pneumatic directional valve, wherein a compressed air is externally connected to an air inlet of the pneumatic directional valve, a first air outlet of the pneumatic directional valve is connected to the first compressed air chamber, and a second air outlet of the pneumatic directional valve is connected to the second compressed air chamber.
5. The driving device of the rotary oil cylinder according to claim 2, wherein a liquid outlet check valve is arranged at the oil outlet, a liquid inlet check valve is arranged at the oil inlet, the liquid outlet check valve is connected with a hydraulic oil inlet of the rotary oil cylinder, and the liquid inlet check valve is connected with a hydraulic oil outlet of the rotary oil cylinder.
6. The apparatus of claim 2, further comprising a cooler, wherein the cooler is connected to the hydraulic oil outlet of the rotary cylinder, the cooler is connected to the oil inlet, and the hydraulic oil discharged from the rotary cylinder is cooled by the cooler and then flows into the gas-liquid pressure increasing device.
7. The drive device of the slewing cylinder as claimed in claim 2, further comprising an accumulator for storing excess hydraulic oil, wherein the accumulator is connected to the oil outlet and the accumulator is connected to a hydraulic oil inlet of the slewing cylinder.
8. The drive apparatus of the swing cylinder according to claim 2, further comprising a hydraulic gauge for detecting a liquid pressure of the oil outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920698848.4U CN209908877U (en) | 2019-05-16 | 2019-05-16 | Driving device of rotary oil cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920698848.4U CN209908877U (en) | 2019-05-16 | 2019-05-16 | Driving device of rotary oil cylinder |
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| CN209908877U true CN209908877U (en) | 2020-01-07 |
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| CN201920698848.4U Active CN209908877U (en) | 2019-05-16 | 2019-05-16 | Driving device of rotary oil cylinder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173786A (en) * | 2020-02-07 | 2020-05-19 | 四川大学 | Pressurizing hydraulic system |
| CN112879379A (en) * | 2021-02-01 | 2021-06-01 | 中国航发沈阳发动机研究所 | Efficient three-cavity hydraulic cylinder and actuating method thereof |
| CN114405087A (en) * | 2022-03-07 | 2022-04-29 | 山东孚德环保有限公司 | Tower type filter press for low-pressure gas source and application thereof |
-
2019
- 2019-05-16 CN CN201920698848.4U patent/CN209908877U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173786A (en) * | 2020-02-07 | 2020-05-19 | 四川大学 | Pressurizing hydraulic system |
| CN111173786B (en) * | 2020-02-07 | 2024-08-06 | 四川大学 | Pressurizing hydraulic system |
| CN112879379A (en) * | 2021-02-01 | 2021-06-01 | 中国航发沈阳发动机研究所 | Efficient three-cavity hydraulic cylinder and actuating method thereof |
| CN114405087A (en) * | 2022-03-07 | 2022-04-29 | 山东孚德环保有限公司 | Tower type filter press for low-pressure gas source and application thereof |
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Effective date of registration: 20200612 Address after: 528100 Tianfulai International Industrial City, No. 3 Changfuxi Road, Ronggui Rongli Residential Committee, Shunde District, Foshan City, Guangdong Province, 7 604 (Residence Declaration) Patentee after: FOSHAN CITY SHUNDE DISTRICT YASHU INDUSTRIAL AUTOMATION TECHNOLOGY Co.,Ltd. Address before: 528100 Tianfulai International Industrial City, No. 3 Changfuxi Road, Ronggui Rongli Residential Committee, Shunde District, Foshan City, Guangdong Province, 7 604 (Residence Declaration) Co-patentee before: FOSHAN QIAOFAN ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Patentee before: FOSHAN CITY SHUNDE DISTRICT YASHU INDUSTRIAL AUTOMATION TECHNOLOGY Co.,Ltd. |
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Address after: 528300 room 702, block 5, tianfulai international industrial city, No. 3, Changfu West Road, Rongli community residents committee, Ronggui sub district office, Shunde District, Foshan City, Guangdong Province Patentee after: Guangdong Yashu Intelligent Technology Co.,Ltd. Address before: 528100 No. 604, block 7, tianfulai international industrial city, No. 3, Changfu West Road, Ronggui Rongli neighborhood committee, Shunde District, Foshan City, Guangdong Province (residence declaration) Patentee before: FOSHAN CITY SHUNDE DISTRICT YASHU INDUSTRIAL AUTOMATION TECHNOLOGY CO.,LTD. |
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