Vacuum adsorption negative pressure device

Abstract

The utility model belongs to the technical field of electronic industry, semiconductors, 3c, automobiles, medical treatment and the like, and particularly relates to a vacuum adsorption negative pressure device which comprises a negative pressure device body, a cavity is formed in the negative pressure device body, a vent hole communicated with the cavity is formed in the middle of the outer end face of the negative pressure device body, a spring is installed at the inner end of the cavity, and the spring is connected with the cavity. And a valve ejector rod is mounted at the outer end of the spring. The utility model has the beneficial effects that the adsorption efficiency is improved: through intelligent adjustment and optimized runner design, the adsorption process is ensured to be rapid and powerful, and the production efficiency is improved; energy conservation and emission reduction are achieved, energy consumption is remarkably reduced through efficient sealing and rapid exhaust design, and the requirement for green production is met; the structure is firm, the service life is long, and the maintenance cost is reduced; the device is wide in application range, is suitable for various automatic production lines, is especially suitable for occasions with high requirements on adsorption precision and speed, and provides powerful support for the development of related fields.

Description

Technical Field

[0001] This utility model patent belongs to technical fields such as the electronics industry, semiconductors, 3C, automotive, and medical, and particularly relates to a vacuum adsorption negative pressure device. Background Art

[0002] A vacuum adsorption negative pressure valve is a device specifically designed to create and control a vacuum environment to achieve an adsorption function, and is applied to occasions where precise adsorption and release of objects are required, such as material handling in industrial automation, precise positioning in electronic product manufacturing such as semiconductor chip processing, glass panel handling, etc.

[0003] Existing vacuum adsorption devices generally have problems such as insufficient adsorption force and slow response speed. These problems are particularly prominent on automated production lines that require fast and precise adsorption operations. Summary of the Utility Model

[0004] The purpose of this utility model is to propose a vacuum adsorption negative pressure device to solve the disadvantages of insufficient adsorption force and slow response speed in the prior art.

[0005] To achieve the above purpose, this utility model provides the following technical solution:

[0006] Design a vacuum adsorption negative pressure device, including a negative pressure device body. A cavity is provided inside the negative pressure device body. A ventilation hole communicating with the cavity is opened in the middle of the outer end face of the negative pressure device body. A spring is installed at the inner end of the cavity. A valve push rod is installed at the outer end of the spring. A first sealing groove is opened on the inner end side of the valve push rod. A push rod piston sealing ring is plugged inside the first sealing groove. A valve guiding function part housing is installed on one side of the negative pressure device body. A second sealing groove is opened at the inner end of the valve guiding function part housing and near the cavity side. A connecting sealing ring is plugged inside the second sealing groove. A guiding groove is opened in the middle of the valve guiding function part housing. The valve push rod slides through the guiding groove. A third sealing groove is opened at the inner end of the guiding groove. A push rod rod body sealing ring is plugged inside the third sealing groove. A suction cup is installed at the outer end of the valve guiding function part housing. A negative pressure inlet connecting pipe is connected to the bottom end of the valve guiding function part housing. A negative pressure inlet is provided inside the negative pressure inlet connecting pipe. A positive pressure inlet connecting pipe is provided at the outer end of the negative pressure device body. A positive pressure inlet is provided inside the positive pressure inlet connecting pipe.

[0007] Furthermore, a body fixing threaded hole is opened on the side of the negative pressure device body. A valve guiding part fixing threaded hole is opened at the edge of the valve guiding function part housing. A groove is opened at the outer end of the valve guiding part fixing threaded hole. A fixing screw is inserted inside the valve guiding part fixing threaded hole and the body fixing threaded hole, and the outer end of the fixing screw is recessed inside the groove.

[0008] Further, a first connection groove is formed at the outer end of the guiding groove. The first connection groove is of a threaded groove structure. One end of the suction cup is connected with a first connection sleeve. The first connection sleeve is of a threaded sleeve structure. The first connection sleeve is threadedly fitted and inserted into the first connection groove. A first knob nut is fixed on the surface of the first connection sleeve. The outer end of the valve push rod is inserted into the suction cup.

[0009] Further, a negative pressure inlet communication groove is formed inside the bottom end of the valve guiding function part housing. The top end of the negative pressure inlet communication groove communicates with the inner end of the guiding groove. A second connection groove is formed at the bottom end of the negative pressure inlet communication groove. The second connection groove is of a threaded groove structure. The top end of the negative pressure inlet connecting pipe is connected with a second connection sleeve. The second connection sleeve is of a threaded sleeve structure. The second connection sleeve is threadedly fitted and inserted into the second connection groove. A second knob nut is fixed on the outer side of the top end of the negative pressure inlet connecting pipe.

[0010] Further, a positive pressure inlet communication groove is formed at the bottom end of the cavity and communicates with each other. A third connection groove is formed at the outer end of the positive pressure inlet communication groove. The third connection groove is of a threaded groove structure. The inner end of the positive pressure inlet connecting pipe is connected with a third connection sleeve. The third connection sleeve is of a threaded sleeve structure. The third connection sleeve is threadedly fitted and inserted into the third connection groove. A third knob nut is fixed on the outer side of the inner end of the positive pressure inlet connecting pipe.

[0011] Further, at one end of the vent hole close to the spring, the valve push rod is horizontally arranged. The piston part at the inner end of the valve push rod is slidably installed inside the cavity and is hermetically connected with the side wall of the cavity through the push rod piston sealing ring. The push rod part at the outer end of the valve push rod slidably passes through the guiding groove.

[0012] Further, the negative pressure device body is hermetically connected with the valve guiding function part housing through the connection sealing ring. The cavity is hermetically arranged with the guiding groove through the push rod body sealing ring.

[0013] Further, the first sealing groove, the second sealing groove and the third sealing groove are all of an annular groove structure. The push rod piston sealing ring, the connection sealing ring and the push rod body sealing ring are all of an annular structure and are all made of sealing rubber material.

[0014] The beneficial effects of the vacuum adsorption negative pressure device proposed by the present utility model are as follows:

[0015] 1. The present utility model improves the adsorption efficiency: Through intelligent adjustment and optimized flow channel design, it ensures that the adsorption process is fast and powerful, improving production efficiency; Energy conservation and emission reduction: The high-efficiency sealing and fast exhaust design significantly reduces energy consumption, meeting the requirements of green production.

[0016] 2. The utility model enhances stability and reliability: with a solid structure, long service life, and reduced maintenance costs; it has a wide range of applications: applicable to various automated production lines, especially in occasions with high requirements for adsorption accuracy and speed, providing strong support for the development of related fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 is the Figure 1 side view of the utility model;

[0019] Figure 3 is the Figure 2 A - A direction sectional view of the utility model;

[0020] Figure 4 is the Figure 3 enlarged view at A of the utility model;

[0021] Figure 5 is the Figure 3 enlarged view at B of the utility model;

[0022] Figure 6 is the Figure 3 enlarged view at C of the utility model;

[0023] Figure 7 is the Figure 1 bottom view of the utility model;

[0024] Figure 8 is the Figure 1 oblique view of the utility model.

[0025] In the figure: 1, positive pressure inlet; 2, negative pressure device body; 3, top rod piston seal ring; 4, body fixing threaded hole; 5, top rod body seal ring; 6, connection seal ring; 7, negative pressure inlet; 8, fixing screw; 9, valve guiding functional part housing; 10, valve top rod; 11, suction cup; 12, first connecting sleeve; 13, first knob nut; 14, first connecting groove; 15, negative pressure inlet connecting pipe; 16, spring; 17, positive pressure inlet communication groove; 18, third knob nut; 19, positive pressure inlet connecting pipe; 20, cavity; 21, third connecting sleeve; 22, third connecting groove; 23, third sealing groove; 24, second sealing groove; 25, first sealing groove; 26, valve guiding part fixing threaded hole; 27, groove; 28, guiding groove; 29, negative pressure inlet communication groove; 30, second connecting groove; 31, second connecting sleeve; 32, second knob nut; 33, ventilation hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0027] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , as shown in the figure, the vacuum adsorption negative pressure device includes a negative pressure device body 2. A cavity 20 is provided inside the negative pressure device body 2. An air vent 33 communicating with the cavity 20 is opened in the middle of the outer end face of the negative pressure device body 2. One end of the air vent 33 is close to the spring 16. A spring 16 is installed at the inner end of the cavity 20. A valve top rod 10 is installed at the outer end of the spring 16. The valve top rod 10 is horizontally arranged. The piston part at the inner end of the valve top rod 10 is slidably installed inside the cavity 20 and is hermetically connected to the side wall of the cavity 20 through the top rod piston seal ring 3. The top rod part at the outer end of the valve top rod 10 slidably passes through the guide groove 28.

[0028] A first seal groove 25 is opened on the side surface of the inner end of the valve top rod 10, and a top rod piston seal ring 3 is plugged inside the first seal groove 25. A valve guide function part housing 9 is installed on one side of the negative pressure device body 2. A second seal groove 24 is opened at the inner end of the valve guide function part housing 9 and near the cavity 20. A connection seal ring 6 is plugged inside the second seal groove 24. The negative pressure device body 2 is hermetically connected to the valve guide function part housing 9 through the connection seal ring 6. A guide groove 28 is opened in the middle of the valve guide function part housing 9. The valve top rod 10 slidably passes through the guide groove 28. A third seal groove 23 is opened at the inner end of the guide groove 28, and a top rod body seal ring 5 is plugged inside the third seal groove 23. The cavity 20 is hermetically arranged with the guide groove 28 through the top rod body seal ring 5.

[0029] A suction cup 11 is installed at the outer end of the valve guide function part housing 9. The vacuum adsorption negative pressure device has a simple structure and sensitive response. It can manage the vacuum degree by changing the opening and closing state of the valve, and can achieve precise placement and non-damaging release of the adsorbed object; for easily damaged surfaces, such as thin films, coating materials, etc., it can achieve trace-free adsorption and handling. The suction cup 11 can be customized with materials to meet various working environments; the vacuum adsorption negative pressure device has a simple design structure, and the operator can quickly disassemble, maintain and replace the suction cup 11.

[0030] At the bottom end of the valve guiding functional part housing 9, a negative pressure inlet connecting pipe 15 is connected. Inside the negative pressure inlet connecting pipe 15, a negative pressure inlet 7 is provided. At the outer end of the negative pressure device body 2, a positive pressure inlet connecting pipe 19 is provided. Inside the positive pressure inlet connecting pipe 19, a positive pressure inlet 1 is provided.

[0031] The vacuum adsorption negative pressure device has been optimized in structure, reducing unnecessary components and complex structures, making it more flexible and rapid. At the same time, the reaction speed has also been improved, enabling it to respond to changes in system pressure within a short time to ensure safe operation.

[0032] Negative pressure enters the suction cup 11 through the negative pressure inlet 7 to form a vacuum state with the object surface. At this time, the valve push rod 10 is elastically moved by the elastic force of the spring 16 to break the vacuum hole on the object surface and is in a sealed state to adsorb the object. When the adsorption function is satisfied, compressed air enters the vacuum adsorption negative pressure device through the positive pressure inlet 1, driving the piston part of the valve push rod 10 to move upward. Through the push rod part of the valve push rod 10, the vacuum breaking hole on the object surface is opened, and the suction cup 11 is separated from the object surface to release the object.

[0033] On the side of the negative pressure device body 2, a body fixing threaded hole 4 is provided. On the edge of the valve guiding functional part housing 9, a valve guiding part fixing threaded hole 26 is provided. At the outer end of the valve guiding part fixing threaded hole 26, a groove 27 is provided. A fixing screw 8 is inserted into the valve guiding part fixing threaded hole 26 and the body fixing threaded hole 4, and the outer end of the fixing screw 8 is recessed inside the groove 27. The vacuum adsorption negative pressure device has a simple structure, is convenient to operate, and is easy to maintain and replace.

[0034] At the outer end of the guiding groove 28, a first connection groove 14 is provided. The first connection groove 14 is a threaded groove structure. One end of the suction cup 11 is connected with a first connection sleeve 12. The first connection sleeve 12 is a threaded sleeve structure. The first connection sleeve 12 is threadedly fitted and inserted into the first connection groove 14. A first knob nut 13 is fixed on the surface of the first connection sleeve 12. The outer end of the valve push rod 10 is inserted into the suction cup 11.

[0035] Inside the bottom end of the valve guiding functional part housing 9, a negative pressure inlet communication groove 29 is provided. The top end of the negative pressure inlet communication groove 29 is communicated with the inner end of the guiding groove 28. At the bottom end of the negative pressure inlet communication groove 29, a second connection groove 30 is provided. The second connection groove 30 is a threaded groove structure. The top end of the negative pressure inlet connecting pipe 15 is connected with a second connection sleeve 31. The second connection sleeve 31 is a threaded sleeve structure. The second connection sleeve 31 is threadedly fitted and inserted into the second connection groove 30. A second knob nut 32 is fixed on the outer side of the top end of the negative pressure inlet connecting pipe 15.

[0036] A positive pressure inlet communication groove 17 is formed at the bottom end of the cavity 20 and is communicated with each other. A third connection groove 22 is formed at the outer end of the positive pressure inlet communication groove 17. The third connection groove 22 is of a threaded groove structure. A third connection sleeve 21 is connected to the inner end of the positive pressure inlet connection pipe 19. The third connection sleeve 21 is of a threaded sleeve structure. The third connection sleeve 21 is threadedly fitted and inserted into the third connection groove 22. A third knob nut 18 is fixed to the outer side of the inner end of the positive pressure inlet connection pipe 19.

[0037] The first sealing groove 25, the second sealing groove 24 and the third sealing groove 23 are all of an annular groove structure. The top rod piston seal ring 3, the connection seal ring 6 and the top rod body seal ring 5 are all of an annular structure and are all made of sealing rubber material, and can maintain the stable sealing performance of the vacuum adsorption negative pressure device under the environment of high pressure difference and high temperature difference.

[0038] Working mode: Negative pressure enters the sucker 11 through the negative pressure inlet 7 to form a vacuum state with the object surface. At this time, the valve top rod 10 is bounced by the elastic force of the spring 16 to break the vacuum hole on the object surface and is in a sealed state to adsorb the object; when the adsorption function is satisfied, compressed air enters the vacuum adsorption negative pressure device through the positive pressure inlet 1, drives the piston part of the valve top rod 10 to move upward, and opens the vacuum breaking hole on the object surface through the top rod part of the valve top rod 10, and the sucker 11 is separated from the object surface to release the object.

[0039] The utility model improves the adsorption efficiency: Through intelligent adjustment and optimized flow channel design, it ensures a fast and powerful adsorption process and improves production efficiency; Energy conservation and emission reduction: The efficient sealing and fast exhaust design significantly reduces energy consumption and meets the requirements of green production.

[0040] Enhance stability and reliability: The structure is firm, the service life is long, and the maintenance cost is reduced; Wide application range: It is applicable to a variety of automated production lines, such as industrial production, material handling, medical devices and other fields, especially in occasions with high requirements for adsorption accuracy and speed, providing strong support for the development of related fields.

[0041] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent replacement or change, and should be covered by the protection scope of the utility model.

Claims

1. A vacuum adsorption negative pressure device, comprising a negative pressure device body (2), characterized in that: A cavity (20) is arranged inside the negative pressure device body (2); a vent hole (33) communicating with the cavity (20) is opened in the middle of the outer end surface of the negative pressure device body (2); a spring (16) is installed at the inner end of the cavity (20); a valve push rod (10) is installed at the outer end of the spring (16); a first sealing groove (25) is opened on the inner end side surface of the valve push rod (10); a push rod piston sealing ring (3) is plugged inside the first sealing groove (25); a valve guide function part housing (9) is installed on one side of the negative pressure device body (2); a second sealing groove (24) is opened at the inner end of the valve guide function part housing (9) and close to one side of the cavity (20); a connecting rod piston sealing ring (3) is plugged inside the second sealing groove (24); A sealing ring (6) is connected to the valve guide function part housing (9); a guide groove (28) is opened in the middle of the valve guide function part housing (9); the valve push rod (10) slides through the guide groove (28); a third sealing groove (23) is opened at the inner end of the guide groove (28); a push rod body sealing ring (5) is plugged inside the third sealing groove (23); a suction cup (11) is installed at the outer end of the valve guide function part housing (9); a negative pressure inlet connecting pipe (15) is connected to the bottom end of the valve guide function part housing (9); a negative pressure inlet connecting pipe (7) is arranged inside the negative pressure inlet connecting pipe (15); a positive pressure inlet connecting pipe (19) is arranged at the outer end of the negative pressure device body (2); a positive pressure inlet connecting pipe (19) is arranged inside the positive pressure inlet connecting pipe (19).

2. The vacuum adsorption negative pressure device according to claim 1, characterized in that: A body fixing threaded hole (4) is provided on the side of the negative pressure device body (2), a valve guide part fixing threaded hole (26) is provided on the edge of the valve guide functional part housing (9), a groove (27) is provided at the outer end of the valve guide part fixing threaded hole (26), a fixing screw (8) is inserted into the inside of the valve guide part fixing threaded hole (26) and the body fixing threaded hole (4), and the outer end of the fixing screw (8) is recessed inside the groove (27).

3. The vacuum adsorption negative pressure device according to claim 1, characterized in that: The outer end of the guide groove (28) is provided with a first connecting groove (14), and the first connecting groove (14) is a threaded groove structure. One end of the suction cup (11) is connected with a first connecting sleeve (12), and the first connecting sleeve (12) is a threaded sleeve structure. The first connecting sleeve (12) is threadedly inserted into the first connecting groove (14). A first knob nut (13) is fixed on the surface of the first connecting sleeve (12), and the outer end of the valve top rod (10) is inserted into the suction cup (11).

4. The vacuum adsorption negative pressure device according to claim 1, characterized in that: A negative pressure inlet connecting groove (29) is provided inside the bottom end of the valve guide functional part housing (9), and the top end of the negative pressure inlet connecting groove (29) is connected to the inner end of the guide groove (28). A second connecting groove (30) is provided at the bottom end of the negative pressure inlet connecting groove (29), and the second connecting groove (30) is a threaded groove structure. The top end of the negative pressure inlet connecting pipe (15) is connected to a second connecting sleeve (31), and the second connecting sleeve (31) is a threaded sleeve structure. The second connecting sleeve (31) is threadedly inserted into the second connecting groove (30), and a second knob nut (32) is fixed to the outer side of the top end of the negative pressure inlet connecting pipe (15).

5. The vacuum adsorption negative pressure device according to claim 1, characterized in that: A positive pressure inlet connecting groove (17) is formed at the bottom end of the cavity (20), and the two are connected to each other. A third connecting groove (22) is formed at the outer end of the positive pressure inlet connecting groove (17), and the third connecting groove (22) is a threaded groove structure. The inner end of the positive pressure inlet connecting pipe (19) is connected to a third connecting sleeve (21), and the third connecting sleeve (21) is a threaded sleeve structure. The third connecting sleeve (21) is threadedly inserted into the third connecting groove (22), and a third knob nut (18) is fixed to the outer side of the inner end of the positive pressure inlet connecting pipe (19).

6. The vacuum adsorption negative pressure device according to claim 1, characterized in that: The vent hole (33) is close to one end of the spring (16), the valve top rod (10) is arranged horizontally, the piston portion at the inner end of the valve top rod (10) is slidably installed in the interior of the cavity (20), and is sealed and connected to the side wall of the cavity (20) through the top rod piston sealing ring (3), and the top rod portion at the outer end of the valve top rod (10) slides through the guide groove (28).

7. The vacuum adsorption negative pressure device according to claim 1, characterized in that: The negative pressure device body (2) is sealedly connected to the valve guide functional part housing (9) via the connecting sealing ring (6), and the cavity (20) is sealed between the push rod body sealing ring (5) and the guide groove (28).

8. The vacuum adsorption negative pressure device according to claim 1, characterized in that: The first sealing groove (25), the second sealing groove (24) and the third sealing groove (23) are all annular groove structures, and the push rod piston sealing ring (3), the connecting sealing ring (6) and the push rod body sealing ring (5) are all annular structures and are all made of sealing rubber material.

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