Mechanical vacuum chuck breaking valve

Abstract

The utility model relates to the technical field of sucker breaking valves, in particular to a mechanical vacuum sucker breaking valve, and aims to solve the problem of extra equipment cost for providing vacuum breaking by using pneumatic back flushing in the prior art. The sucker comprises a connector sleeve and a sucker connecting end, a first cavity penetrating through the top and the bottom is formed in the connector sleeve, a valve element in sliding connection is arranged in the first cavity, a second cavity penetrating through the top and the bottom is formed in the sucker connecting end, a telescopic rod is slidably connected in the second cavity, and the telescopic rod is fixedly connected with the valve element. The first sliding cavity and the second sliding cavity form a whole and jointly slide in the first sliding cavity and the second sliding cavity; according to the scheme, the valve element driven by vacuum and the spring is designed, the telescopic rod is in linkage with the sliding body, the suction cup connecting end is rapidly ejected out under the elastic force effect of the spring, parts which cannot be separated due to electrostatic adsorption at the bottom of the suction cup connecting end are ejected away, and the traditional mode that positive pressure is introduced from the top of the connector sleeve to blow away the parts below the suction cup is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of suction cup breaking valves, in particular to a mechanical vacuum suction cup breaking valve. Background Art

[0002] At present, in the field of industrial automation, vacuum, as an important means to achieve industrial automation, has been widely used in many aspects such as the handling of semiconductors and liquid crystal panels, food packaging, robots, etc. Energy-saving vacuum handling technology has a bright market prospect. Many scholars at home and abroad have conducted a lot of theoretical and experimental research on the principles and applications of vacuum. In order to improve the quality of their products, many large companies have gradually switched to vacuum suction cups. After vacuum adsorption, static electricity will be generated on the surface of the suction cup and the workpiece, making it difficult to separate the suction cup from the workpiece. The traditional vacuum destruction is to use positive pressure for backblowing, but providing positive pressure backblowing requires corresponding pneumatic equipment, which increases the equipment cost. Based on this background, this scheme replaces pneumatic vacuum destruction with mechanical vacuum destruction to reduce the investment in pneumatic equipment. Utility Model Content

[0003] Based on the above description, the utility model provides a mechanical vacuum suction cup breaking valve to solve the problem of additional equipment cost of using pneumatic backblowing to provide vacuum breaking in the prior art.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A mechanical vacuum suction cup breaking valve, comprising:

[0006] A joint sleeve, wherein a first cavity penetrating through the top and the bottom is formed inside the joint sleeve, and a first sliding cavity is formed inside the first cavity;

[0007] The suction cup connection end is sleeved on the bottom of the joint sleeve, and a second cavity penetrating the top and the bottom is formed inside the suction cup connection end, and a second sliding cavity is formed inside the second cavity;

[0008] A valve core, slidably connected in the first sliding cavity;

[0009] A telescopic rod, slidably connected in the second sliding cavity and connected to the valve core;

[0010] The first spring is disposed in the first sliding cavity and abuts against the valve core to provide a force to push the valve core toward the suction cup connecting end.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows.

[0012] Furthermore, a second spring abutting against the telescopic rod is arranged in the second sliding cavity, and the second spring provides a force to push the telescopic rod toward the joint sleeve.

[0013] Furthermore, a first sealing ring is provided at the connection between the joint sleeve and the suction cup connecting end.

[0014] Furthermore, a second sealing ring is provided at the connection between the valve core and the telescopic rod.

[0015] Furthermore, a first ring is connected to the bottom of the joint sleeve, the top of the suction cup connecting end is inserted into the first ring, an annular first groove is provided on the inner side of the first ring and / or the outer side of the suction cup connecting end, and the first sealing ring is embedded in the first groove.

[0016] Furthermore, the telescopic rod includes a sleeve portion at the top and an extension portion at the bottom, the sleeve portion has a diameter larger than the extension portion, the bottom outer ring of the valve core and / or the inner ring of the sleeve portion are provided with an annular second groove, and the second sealing ring is embedded in the second groove.

[0017] Furthermore, the second sliding cavity comprises a large-diameter cavity at the top and a small-diameter cavity at the bottom, and the sleeve portion is slidably connected to the large-diameter cavity.

[0018] Furthermore, a receiving groove is provided at the top of the valve core, the top of the first spring abuts against the top of the first sliding cavity, and the bottom of the first spring abuts against the bottom of the receiving groove.

[0019] Furthermore, the top of the second spring abuts against the sleeve portion, and the bottom of the second spring abuts against the bottom of the narrow-diameter cavity.

[0020] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0021] This solution designs a valve core and a telescopic rod linked sliding body driven by vacuum and spring, so that the suction cup connecting end can be quickly ejected under the elastic force of the spring, and the parts at the bottom of the suction cup connecting end that cannot be detached due to electrostatic adsorption can be ejected. This improves the traditional method of blowing open the parts under the suction cup by introducing positive pressure from the top of the joint sleeve, and eliminates the related positive pressure pneumatic equipment. The utility model can replace the traditional vacuum destruction method, and also solves the problem of thin and small parts being blown away during vacuum destruction. The overall structure is simple and easy to manufacture, meeting the actual production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural front view of a mechanical vacuum suction cup breaking valve provided by an embodiment of the utility model;

[0023] Figure 2 for Figure 1Schematic diagram of the internal section structure in the middle AA direction;

[0024] Figure 3 for Figure 2 Schematic diagram of the structure after removing the hatching lines.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Connecting sleeve; 2. Suction cup connecting end; 3. Valve core; 4. Telescopic rod; 5. First spring; 6. Second spring; 7. First sealing ring; 8. Second sealing ring; 9. First sliding cavity; 10. Second sliding cavity; 11. First sleeve ring; 12. Extending part; 13. Sleeve connecting part; 14. Large diameter cavity; 15. Small diameter cavity. DETAILED DESCRIPTION

[0027] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0029] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0030] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0031] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0032] like Figure 1-3 A mechanical vacuum suction cup breaking valve shown in the figure comprises a joint sleeve 1 and a suction cup connecting end 2 of a tubular structure, wherein the joint sleeve 1 is located at the top and the suction cup connecting end 2 is located at the bottom, and the two are spliced ​​to form a valve body, and both the joint sleeve 1 and the suction cup connecting end 2 are cylindrical structures that penetrate from the top to the bottom. A first cavity that penetrates the top and the bottom is formed inside the joint sleeve 1, a first sliding cavity 9 is formed inside the first cavity, and a slidably connected valve core 3 is arranged in the first sliding cavity 9, and a second cavity that penetrates the top and the bottom is formed inside the suction cup connecting end 2, a second sliding cavity 10 is formed in the second cavity, and a telescopic rod 4 is slidably connected in the second sliding cavity 10, and the telescopic rod 4 is fixedly connected to the valve core 3, and the two form a whole and slide together in the first sliding cavity 9 and the second sliding cavity 10. In order to make the valve core 3 and the telescopic rod 4 have a restoring force, a first spring 5 that abuts against the valve core 3 is arranged in the first sliding cavity 9, and the first spring 5 provides a force to push the valve core 3 toward the suction cup connecting end 2. In the adsorption state, vacuum is drawn from the top of the joint sleeve 1, and under the action of air pressure, the valve core 3 and the telescopic rod 4 move upward and compress the first spring 5, at which time the bottom end of the telescopic rod 4 is completely retracted into the suction cup connection end 2; in the destruction state, the top of the joint sleeve 1 releases the vacuum, and under the push of the first spring 5, the bottom end of the telescopic rod 4 extends out of the suction cup connection end 2, and the parts at the bottom of the suction cup connection end 2 that cannot be separated due to static electricity are pushed away from the suction cup. In order to increase the suction force and reduce the force of vacuuming, a second spring 6 is provided in the second sliding cavity 10 to abut against the telescopic rod 4. The second spring 6 provides a force to push the telescopic rod 4 toward the joint sleeve 1, and works together with the air pressure to drive the valve core 3 and the telescopic rod 4 to slide upward.

[0033] Specifically, the bottom of the joint sleeve 1 is connected to a first sleeve ring 11, the top of the suction cup connection end 2 is inserted into the first sleeve ring 11, and the inner side of the first sleeve ring 11 and / or the outer side of the suction cup connection end 2 are provided with an annular first groove, and a first sealing ring 7 is embedded in the first groove. It should be pointed out that the joint sleeve 1 and the suction cup connection end 2 can be sleeve structures to each other, which is easy for those skilled in the art to associate. A second sealing ring 8 is provided at the connection between the valve core 3 and the telescopic rod 4. The telescopic rod 4 includes a sleeve portion 13 at the top and an extension portion 12 at the bottom, the sleeve portion 13 has a diameter larger than the extension portion 12, and the bottom outer ring of the valve core 3 and / or the inner ring of the sleeve portion 13 are provided with an annular second groove, and the second sealing ring 8 is embedded in the second groove, and the second sealing ring 8 can also play a role in auxiliary connection. In order to provide a fixed position or abutment position for the first spring 5 and the second spring 6, the second sliding chamber 10 includes a large diameter chamber 14 at the top and a small diameter chamber 15 at the bottom, the sleeve portion 13 is slidably connected to the large diameter chamber 14, the second spring 6 is sleeved in the gap between the extension portion 12 and the inner wall of the second sliding chamber 10, the top of the second spring 6 abuts against the sleeve portion 13, and the bottom abuts against the bottom of the small diameter chamber 15. A receiving groove is provided at the top of the valve core 3, the top of the first spring 5 abuts against the top of the first sliding chamber 9, and the bottom of the first spring 5 abuts against the bottom of the receiving groove.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanical vacuum cup breaking valve, characterized in that: include: A joint sleeve, wherein a first cavity penetrating through the top and the bottom is formed inside the joint sleeve, and a first sliding cavity is formed inside the first cavity; The suction cup connection end is sleeved on the bottom of the joint sleeve, and a second cavity penetrating the top and the bottom is formed inside the suction cup connection end, and a second sliding cavity is formed inside the second cavity; A valve core, slidably connected in the first sliding cavity; A telescopic rod, slidably connected in the second sliding cavity and connected to the valve core; The first spring is disposed in the first sliding cavity and abuts against the valve core to provide a force to push the valve core toward the suction cup connecting end.

2. A mechanical vacuum cup breaking valve according to claim 1, characterized in that: A second spring abutting against the telescopic rod is arranged in the second sliding cavity, and the second spring provides a force to push the telescopic rod toward the joint sleeve.

3. A mechanical vacuum cup breaking valve according to claim 1, characterized in that: A first sealing ring is provided at the connection between the joint sleeve and the suction cup connection end.

4. A mechanical vacuum cup breaking valve according to claim 2, characterized in that: A second sealing ring is provided at the connection between the valve core and the telescopic rod.

5. A mechanical vacuum cup breaking valve according to claim 3, characterized in that: The bottom of the joint sleeve is connected to a first ring, the top of the suction cup connecting end is inserted into the first ring, the inner side of the first ring and / or the outer side of the suction cup connecting end are provided with an annular first groove, and the first sealing ring is embedded in the first groove.

6. A mechanical vacuum cup breaking valve according to claim 4, characterized in that: The telescopic rod includes a sleeve portion at the top and an extension portion at the bottom. The sleeve portion has a larger diameter than the extension portion. The bottom outer ring of the valve core and / or the inner ring of the sleeve portion are provided with an annular second groove. The second sealing ring is embedded in the second groove.

7. A mechanical vacuum cup breaking valve according to claim 6, characterized in that: The second sliding cavity comprises a large-diameter cavity at the top and a small-diameter cavity at the bottom, and the sleeve portion is slidably connected with the large-diameter cavity.

8. A mechanical vacuum cup breaking valve according to claim 1, characterized in that: The top of the valve core is provided with a receiving groove, the top of the first spring abuts against the top of the first sliding chamber, and the bottom of the first spring abuts against the bottom of the receiving groove.

9. A mechanical vacuum cup breaking valve according to claim 6, characterized in that: The top of the second spring abuts against the sleeve portion, and the bottom of the second spring abuts against the bottom of the small-diameter cavity.

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