Control valve structure of a vacuum suction device

Abstract

The present invention discloses a control valve structure for a vacuum suction device. The vacuum suction device includes a housing and baffles provided at both ends of the housing. The housing is a cuboid cavity structure, and the cavity is a vacuum cavity. The bottom surface of the housing is evenly provided with control valve mounting holes, and a control valve structure is arranged in the control valve mounting holes. The control valve structure includes a cylindrical valve body, a blocking ball, and a blocking piece. The cylindrical valve body is provided with a cavity and an air flow channel. The cavity extends upward from the bottom of the cylindrical valve body, and the air flow channel extends downward from the top of the cylindrical valve body. The height of the air flow channel is greater than the height from the top of the cavity to the top of the cylindrical valve body. A convex platform is formed at the junction of the cavity and the air flow channel. The blocking ball is arranged in the cavity, and the blocking piece is arranged at the bottom of the cavity. The present invention can be applied to handling articles at various angles of the vacuum suction device.

Description

Technical Field:

[0001] The present invention relates to the field of vacuum technology, and particularly to a control valve structure of a vacuum sucker. Background Art:

[0002] The vacuum sucker system is a commonly used mechanical device for handling various workpieces and articles, and its application range is relatively wide. The existing vacuum suckers usually can only handle workpieces and articles by parallel transportation. When the sucker holds the workpiece and rotates 180°, the vacuum suction holes are usually blocked, resulting in limitations in handling.

[0003] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention:

[0004] The purpose of the present invention is to provide a control valve structure of a vacuum sucker, thereby overcoming the defects in the above-mentioned prior art.

[0005] To achieve the above purpose, the present invention provides a control valve structure of a vacuum sucker. The vacuum sucker includes a housing and baffles provided at both ends of the housing. The housing is a cuboid cavity structure, and the cavity is a vacuum cavity. The bottom surface of the housing is evenly provided with control valve mounting holes, and a control valve structure is provided in the control valve mounting holes. It is characterized in that: the control valve structure includes a cylindrical valve body, a blocking ball, and a blocking piece. The cylindrical valve body is provided with a cavity and an air flow channel. The cavity extends upward from the bottom of the cylindrical valve body, and the air flow channel extends downward from the top of the cylindrical valve body. The height of the air flow channel is greater than the height from the top of the cavity to the top of the cylindrical valve body. A convex platform is formed at the junction of the cavity and the air flow channel. The blocking ball is arranged in the cavity, and the blocking piece is arranged at the bottom of the cavity.

[0006] The outer surface of the cylindrical valve body is provided with a buckle, and the cylindrical valve body is connected to the control valve mounting hole through the buckle.

[0007] The cylindrical valve body is connected to the control valve mounting hole by threaded connection or by adhesive bonding.

[0008] The blocking piece is detachably installed at the bottom opening of the cavity. One or more ventilation openings are provided on the blocking piece, and the ventilation openings are smaller than the diameter of the blocking ball.

[0009] The blocking piece is installed at the bottom opening of the cavity by adhesive bonding.

[0010] A sponge gasket is further provided below the housing, and suction holes matching the control valve mounting holes are evenly provided on the sponge gasket.

[0011] Compared with the prior art, one aspect of the present invention has the following beneficial effects:

[0012] (1) The cylindrical valve body of the control valve structure of the present invention adopts a combined design of a cavity and an air flow channel, and a boss is formed at the intersection of the cavity and the air flow channel. When the vacuum gripper carries an object and rotates 180°, the blocking ball rotates from the bottom of the cavity to the top of the cavity. At this time, the boss supports the blocking ball and limits the blocking ball between the boss and the inner wall of the cavity, so that the blocking ball does not block the air flow channel, ensuring that the vacuum gripper can still be used normally when rotated to 180°, which can improve the applicable occasions of the vacuum gripper;

[0013] (2) The control valve structure of the present invention and the control valve mounting hole, the baffle and the control valve structure are all designed to be detachable. When an individual control valve structure or baffle is damaged, only the individual control valve structure or baffle needs to be replaced and repaired, thereby saving the maintenance cost of the vacuum suction device. Description of the drawings:

[0014] Figure 1 is a cross-sectional view of a vacuum gripper of the present invention;

[0015] Figure 2 It is a structural schematic diagram of a shell of a vacuum suction device of the present invention;

[0016] Figure 3 It is an enlarged schematic diagram of a control valve structure of a vacuum gripper of the present invention;

[0017] Figure 4 It is an enlarged cross-sectional schematic diagram of a control valve structure of a vacuum gripper of the present invention;

[0018] Figure 5 A schematic diagram of a baffle of a control valve structure of a vacuum suction device of the present invention;

[0019] The figures are marked as follows: 1-shell, 11-vacuum chamber, 12-control valve mounting hole, 2-baffle, 3-control valve structure, 31-cylindrical valve body, 311-cavity, 312-air flow channel, 313-boss, 314-clip, 32-block ball, 33-block plate, 331-vent, 4-sponge sealing pad. Specific implementation method:

[0020] The specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0021] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or variations thereof such as "comprises" or "comprising" shall be understood to include the stated element or component without excluding other elements or other components.

[0022] As Figures 1-5 shown, a control valve structure of a vacuum suction device, the vacuum suction device includes a housing 1 and baffles 2 provided at both ends of the housing 1. The housing 1 is a rectangular parallelepiped cavity structure, and the cavity is a vacuum cavity 11. The bottom surface of the housing 1 is evenly provided with control valve mounting holes 12, and a control valve structure 3 is provided in the control valve mounting holes 12. It is characterized in that: the control valve structure 3 includes a cylindrical valve body 31, a blocking ball 32 and a blocking piece 33. The cylindrical valve body 31 is provided with a cavity 311 and an air flow channel 312. The cavity 311 extends upward from the bottom of the cylindrical valve body 31, and the air flow channel 312 extends downward from the top of the cylindrical valve body 31. The height of the air flow channel 312 is greater than the height from the top of the cavity 311 to the top of the cylindrical valve body 31. A boss 313 is formed at the junction of the cavity 311 and the air flow channel 312. The blocking ball 32 is arranged in the cavity 311, and the blocking piece 33 is arranged at the bottom of the cavity 311.

[0023] For the convenience of installation and disassembly of the control valve structure 3, further, a buckle 314 is provided on the outer surface of the cylindrical valve body 31, and the cylindrical valve body 31 is connected to the control valve mounting hole 12 through the buckle.

[0024] Or the cylindrical valve body 31 and the control valve mounting hole 12 can also be connected by threads or bonded by an adhesive.

[0025] The blocking piece 33 is detachably installed at the bottom opening of the cavity 311. One or more vent holes 331 are provided on the blocking piece 33, and the vent holes 331 are smaller than the diameter of the blocking ball.

[0026] The blocking piece 33 is installed at the bottom opening of the cavity 311 by means of adhesive bonding.

[0027] A sponge gasket 4 is further provided below the housing 1, and suction holes matching the control valve mounting holes 12 are evenly provided on the sponge gasket 4.

[0028] During implementation, since the cylindrical valve body 31 of the control valve structure 3 of the present invention adopts a combined design of a cavity 311 and an air flow channel 312, a boss 313 is formed at the intersection of the cavity 311 and the air flow channel 312. When the vacuum suction device carries an object and rotates 180°, the control valve structure 3 also rotates, and the blocking ball 32 rotates from the bottom of the cavity 311 to the top of the cavity 311. At this time, the boss 313 supports the blocking ball 32 and limits the blocking ball 32 between the boss 313 and the inner wall of the cavity 311, so that the blocking ball 32 will not block the air flow channel 312, ensuring that the vacuum suction device can still be used normally when rotated to 180°, which can improve the applicable occasions of the vacuum suction device; and between the control valve structure 3 of the present invention and the control valve mounting hole 12, the blocking plate 33 and the control valve structure 3 are both detachable. When individual control valve structures 3 or blocking plates 33 are damaged, only the individual control valve structures 3 or blocking plates 33 need to be replaced and repaired, which greatly saves the maintenance cost of the vacuum suction device.

[0029] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.

Claims

1. The control valve structure of a vacuum suction device, the vacuum suction device comprising a housing and baffles provided at both ends of the housing, the housing being a rectangular parallelepiped cavity structure, the cavity being a vacuum cavity, the bottom surface of the housing being uniformly provided with control valve mounting holes, and a control valve structure being provided in the control valve mounting holes, characterized in that: The control valve structure includes a cylindrical valve body, a baffle ball and a baffle plate. The cylindrical valve body is provided with a cavity and an air flow channel. The cavity extends upward from the bottom of the cylindrical valve body, and the air flow channel extends downward from the top of the cylindrical valve body. The height of the air flow channel is greater than the height from the top of the cavity to the top of the cylindrical valve body. A boss is formed at the intersection of the cavity and the air flow channel. The baffle ball is arranged in the cavity, and the baffle plate is arranged at the bottom of the cavity. When the vacuum suction device transports an object and rotates 180°, the control valve structure also rotates, and the baffle ball rotates from the bottom of the cavity to the top of the cavity. At this time, the boss supports the baffle ball and limits the baffle ball between the boss and the inner wall of the cavity, so that the baffle ball will not block the air flow channel.

2. The control valve structure of a vacuum suction device according to claim 1, characterized in that: The outer surface of the cylindrical valve body is provided with a buckle, and the cylindrical valve body is connected to the control valve mounting hole through the buckle.

3. The control valve structure of a vacuum suction device according to claim 1, characterized in that: The cylindrical valve body is connected to the control valve mounting hole by threads or by adhesive.

4. The control valve structure of a vacuum suction device according to claim 1, characterized in that: The blocking piece is detachably mounted at the bottom opening of the cavity, and one or more vents are arranged on the blocking piece, and the vents are smaller than the diameter of the blocking ball.

5. The control valve structure of a vacuum suction device according to claim 1, characterized in that: The baffle is installed at the bottom opening of the cavity by bonding with adhesive.

6. The control valve structure of a vacuum suction device according to claim 1, characterized in that: A sponge sealing pad is also arranged below the shell, and air suction holes matching the mounting holes of the control valve are evenly arranged on the sponge sealing pad.

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