A gas connection system
By designing an air connection system and utilizing a synchronous conveyor belt and an automated air connection device, the automatic on/off of pneumatic quick connectors was achieved, solving the problem of increased costs caused by manual operation and reducing the overall cost of the production line.
Patent Information
- Application Number
- CN202010547716.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-06-16
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2040-06-16
AI Technical Summary
The existing vacuum pump production line requires manual operation of pneumatic quick-connect couplings, which increases costs and requires an air compressor for each vacuum unit.
Design an air-connecting system that utilizes a synchronously running workpiece and vacuum unit conveyor belt to automatically open and close pneumatic quick-connectors via an air-connecting device. An external air source is used for air supply, and combined with a pushing, guiding, locking, and resetting device, the pneumatic quick-connectors are automatically disconnected.
It enables automatic disconnection of pneumatic quick couplings, reduces production line costs, decreases the need for air compressors, and improves operational efficiency.
Smart Images
Figure CN111810385B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the application field of vacuum pumps, and in particular to an air connection system. Background Art
[0002] In existing assembly lines for vacuuming workpieces, it is usually necessary to manually connect the vacuum unit's exhaust port to the workpiece's exhaust port in order to perform vacuuming. During the vacuuming process, the vacuum unit and the workpiece run synchronously on the assembly line. When the vacuuming is completed, the staff will disconnect the air path between the vacuum unit and the workpiece at a specific point on the assembly line. For ease of operation, the air path between the vacuum unit and the workpiece to be vacuumed is generally connected and disconnected by pneumatic quick connectors. The pneumatic quick connectors need to be manually operated when connected, but when disconnected, they can be supplied by an external air source (such as an air compressor). Therefore, an air compressor needs to be installed next to each vacuum unit, which greatly increases the cost of the assembly line. Therefore, there is still room for improvement. Summary of the invention
[0003] In view of the shortcomings of the prior art, the present invention provides an air connection system capable of supplying air to all pneumatic quick connectors on an assembly line through a single external air source.
[0004] In order to solve the above technical problems, the present invention is solved by the following technical solutions:
[0005] A gas receiving system comprises a workpiece conveyor belt for placing workpieces and an equipment conveyor belt for placing a vacuum unit, the workpiece conveyor belt and the equipment conveyor belt are arranged adjacent to each other and operate synchronously; the air suction port of the vacuum unit is connected to the air outlet of the workpiece by a pneumatic quick connector; the disengaged air supply port of the pneumatic quick connector is connected to an air receiving pipe, and the pipe mouth of the air receiving pipe is connected to an air receiving joint arranged on the vacuum unit; an air receiving device is arranged on one side of the equipment conveyor belt, and an air supply joint matching the air receiving joint is arranged on the air receiving device; an external air source is connected to the air supply joint; the air receiving device is also provided with a pushing device connected to the air supply joint to push the air supply joint to a position connected to the air receiving joint; the air receiving device is also provided with a guiding device to enable the air receiving device to run along the conveying direction of the equipment conveyor belt; the air receiving device is also provided with a locking device to lock or unlock the relative position between the air receiving device and the vacuum unit; the air receiving device is also provided with a resetting device to enable the air receiving device to be reset along the direction of the guiding device.
[0006] By adopting the above scheme, the workpiece conveyor belt and the equipment conveyor belt can synchronously transport the workpiece to be vacuumed and the vacuum unit respectively; when the workpiece to be vacuumed is transported to a specific position, the staff can manually connect the corresponding vacuum unit through a pneumatic quick connector to perform vacuuming operation; during the vacuuming process, the workpiece and the corresponding vacuum unit can continue to run synchronously; when the vacuuming is completed, the vacuum unit just runs to the position of the air receiving device, and the locking device is actuated to lock the relative position between the vacuum unit and the air receiving device, so that the air receiving device can move along the guide device The setting direction is synchronized with the vacuum unit; at the same time, the pushing device is activated to push the air supply connector forward and connect it to the air receiving connector, so that the air receiving pipe is connected to the external air source, so that the external air source can supply air to the air supply port of the pneumatic quick connector, so that the pneumatic quick connector automatically disconnects and seals the gas; then, the locking device is reset to release the lock between the vacuum unit and the air receiving device, so that the vacuum unit continues to transmit forward, and the air receiving device can automatically return to its original position along the guide device under the action of the reset device to wait for the next vacuum unit to arrive, and the above process is repeated again. The above whole process can not only realize the automatic disengagement of the pneumatic quick connector, but also ensure that only one external air source is used, without the need to configure an air source (air compressor) for each vacuum unit, thereby greatly reducing the cost of the entire assembly line.
[0007] Preferably, the pushing device is a cylinder.
[0008] By adopting the above scheme, the cylinder has a simple structure and is easy to install, maintain and control. In addition, the cylinder has a large output force and strong adaptability, and can accurately and efficiently push the air supply connector to connect to the air receiving connector.
[0009] Preferably, the guiding device is a linear guide rail arranged at the bottom of the air receiving device, and the conveying direction of the linear guide rail is consistent with the conveying direction of the equipment conveyor belt.
[0010] By adopting the above scheme, the linear guide can be used in high-precision or high-speed linear reciprocating motion occasions, and can bear a certain torque, and can achieve high-precision linear motion under high load conditions, which can enable the air receiving device to perform stable and smooth reciprocating linear motion.
[0011] Preferably, the locking device comprises a positioning hole formed on the outer wall of the vacuum unit and a connector disposed on the air receiving device, and a driving device connected to the connector is installed on the air receiving device to drive the connector to be inserted into or out of the positioning hole.
[0012] By adopting the above scheme, the plug-in matching structure between the plug-in component and the positioning hole is simple, and the two can efficiently and accurately realize the locking and unlocking of the relative position between the vacuum device and the air receiving device.
[0013] Preferably, the driving device is a cylinder.
[0014] By adopting the above scheme, the cylinder has a simple structure and is easy to install, maintain and control. In addition, the cylinder has a large output force and strong adaptability, and can accurately and efficiently push the connector into the positioning hole.
[0015] Preferably, the reset device is a tension spring, one end of which is fixed to the tail end of the air receiving device, and the other end of which is fixed to the starting position of the guide device.
[0016] By adopting the above scheme, the tension spring has a simple structure, low cost, strong pulling force, and can be reused. It can efficiently and accurately pull the air receiving device back to its original position.
[0017] Preferably, the external air source is an air compressor.
[0018] By adopting the above solution, the air compressor has low noise, simple system maintenance and little pollution to gas-using equipment.
[0019] The present invention has significant technical effects due to the adoption of the above technical scheme: the workpiece conveyor belt and the equipment conveyor belt can synchronously transport the workpiece to be vacuumed and the vacuum unit respectively; when the workpiece to be vacuumed is transported to a specific position, the staff can manually connect the corresponding vacuum unit with the pneumatic quick connector to perform vacuuming operation; during the vacuuming process, the workpiece and the corresponding vacuum unit can continue to maintain synchronous operation; when the vacuuming is completed, the vacuum unit just runs to the position of the air receiving device, and the locking device is actuated to lock the relative position between the vacuum unit and the air receiving device, so that the air receiving device The device can run synchronously with the vacuum unit along the setting direction of the guide device; at the same time, the pushing device is activated to push the air supply connector forward and connect it to the air receiving connector, so that the air receiving pipe is connected to the external air source, so that the external air source can supply air to the air supply port of the pneumatic quick connector, so that the pneumatic quick connector automatically disconnects and seals the gas; then, the locking device is reset to release the lock between the vacuum unit and the air receiving device, so that the vacuum unit continues to transmit forward, and the air receiving device can automatically return to its original position along the guide device under the action of the reset device to wait for the next vacuum unit to arrive, and the above process is repeated again. The above whole process can not only realize the automatic disengagement of the pneumatic quick connector, but also ensure that only one external air source is used, without the need to configure an air source (air compressor) for each vacuum unit, thereby greatly reducing the cost of the entire assembly line. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the structure of the pneumatic quick connector when it is connected in this embodiment;
[0021] Figure 2 This is a schematic diagram of the structure of the pneumatic quick connector when it is disconnected in this embodiment;
[0022] Figure 3It is a structural schematic diagram of this embodiment;
[0023] Figure 4 Schematic diagram of the system structure of this embodiment.
[0024] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. workpiece; 2. workpiece conveyor belt; 3. vacuum unit; 4. equipment conveyor belt; 5. pneumatic quick connector; 6. air receiving pipe; 7. air receiving joint; 8. air receiving device; 9. air supply joint; 10. external air source; 11. pushing device; 12. guiding device; 13. locking device; 14. resetting device; 15. linear guide rail; 16. positioning hole; 17. connector; 18. driving device; 19. air guide pipe; 20. sensing point; 21. position sensor; 22. control device. DETAILED DESCRIPTION
[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0026] like Figures 1 to 4As shown, a gas receiving system disclosed in this embodiment includes a workpiece conveyor belt 2 for placing a workpiece 1 and an equipment conveyor belt 4 for placing a vacuum unit 3, and the workpiece conveyor belt 2 and the equipment conveyor belt 4 are arranged adjacent to each other and run synchronously. In this embodiment, the workpiece conveyor belt 2 and the equipment conveyor belt 4 are preferably annular conveyor belts, which are in a long waist shape, so as to reduce the floor space occupied by the conveyor belts, and the workpiece conveyor belt 2 is preferably arranged in a ring outside the equipment conveyor belt 4, and a distance is maintained between the two. The air suction port of the vacuum unit 3 and the air outlet of the workpiece 1 are connected through a pneumatic quick connector 5; the air supply port of the pneumatic quick connector 5 is connected to an air receiving pipe 6, and the pipe mouth of the air receiving pipe 6 is connected to an air receiving joint 7 arranged on the vacuum unit 3, and the air receiving joint 7 is fixedly installed on the vacuum unit 3. An air receiving device 8 is arranged on one side of the equipment conveyor belt 4, and an air supply joint 9 is arranged on the air receiving device 8 to match the air receiving joint 7, and the air supply joint 9 is movably connected to the air receiving device 8. An external air source 10 is connected to the air supply connector 9. In the present embodiment, the external air source 10 is an air compressor, which is preferably connected to the air supply connector 9 through an air guide pipe 19. The air receiving device 8 is also provided with a pushing device 11 connected to the air supply connector 9 to push the air supply connector 9 to a position connected to the air receiving connector 7. In the present embodiment, the pushing device 11 is a cylinder, and its push rod is connected to the air supply connector 9, so that the air supply connector 9 can be driven close to or away from the air receiving connector 7. The air receiving device 8 is also provided with a guiding device 12 so that the air receiving device 8 can run along the conveying direction of the equipment conveyor belt 4. In the present embodiment, the guiding device 12 is a linear guide rail 15 arranged at the bottom of the air receiving device 8. Two linear guide rails 15 are provided, which are arranged on both sides of the bottom of the air receiving device 8. And the conveying direction of each linear guide 15 is consistent with the conveying direction of the equipment conveyor belt 4, so that the air receiving device 8 can perform linear motion synchronously with the vacuum unit 3 along the setting direction of the linear guide 15 to improve the stability and smoothness of the air receiving device 8 during the movement. A locking device 13 is also provided on the air receiving device 8 to lock or unlock the relative position between the air receiving device 8 and the vacuum unit 3. In this embodiment, the locking device 13 includes a positioning hole 16 opened on the outer wall of the vacuum unit 3 and a connector 17 provided on the air receiving device 8. A driving device 18 connected to the connector 17 is installed on the air receiving device 8 to drive the connector 17 to insert into the positioning hole 16 or disengage from the positioning hole 16. The driving device 18 is a cylinder, and the push rod of the cylinder is integrally connected to the connector 17. A resetting device 14 is also provided on the air receiving device 8 to enable the air receiving device 8 to be reset along the direction of the guide device 12. The reset device 14 is a tension spring, one end of which is fixed to the tail end of the air receiving device 8 , and the other end of which is fixed to the starting position of the guide device 12 .
[0027] The gas receiving system is also provided with a control device 22, which can be a single chip microcomputer, a PLC or an equivalent analog circuit. A sensing point 20 is provided on the side of the vacuum unit 3 close to the gas receiving device 8, and the sensing point 20 is preferably a permanent magnet. A position sensor 21 for monitoring the position of the sensing point 20 is provided on the side of the gas receiving device 8 close to the vacuum unit 3, and the position sensor 21 is preferably a Hall sensor, which can effectively monitor the presence or absence of the magnetism of the permanent magnet, thereby judging the approach or distance of the sensing point 20. The position sensor 21 is coupled to the signal input end of the control device 22, and the pushing device 11 and the driving device 18 are coupled to the control signal output end of the control device 22.
[0028] The specific working principle is as follows:
[0029] The workpiece conveyor belt 2 and the equipment conveyor belt 4 can respectively and synchronously transport the workpiece 1 to be vacuumed and the vacuum unit 3; when the workpiece 1 to be vacuumed is transported to a specific position, the staff can manually connect the corresponding vacuum unit 3 through the pneumatic quick connector 5 to perform the vacuum operation; during the vacuuming process, the workpiece 1 and the corresponding vacuum unit 3 can continue to run synchronously; when the vacuuming is completed, the vacuum unit 3 just runs to the position of the air receiving device 8, at this time the position sensor 21 can detect the sensing point 20, and send the detection signal to the control device 22, the control device 22 controls the drive device 18 to drive the connector 17 to be inserted into the positioning hole 16, thereby locking the relative position between the vacuum unit 3 and the air receiving device 8, so that the air receiving device 8 can run synchronously with the vacuum unit 3 along the setting direction of the guide device 12. At the same time, the control device 22 controls the pushing device 11 to move, push the air supply connector 9 forward and connect it to the air receiving connector 7, so that the air receiving pipe 6 is connected to the external air source 10, so that the external air source 10 can supply air to the air supply port of the pneumatic quick connector 5, so that the pneumatic quick connector 5 automatically disconnects and seals the gas; then, the control device 22 controls the pushing device 11 to reset, so as to separate the air supply connector 9 from the air receiving connector 7; when the air supply connector 9 and the air receiving connector 7 are separated from each other, they can automatically seal the corresponding pipe openings to avoid air leakage. Next, the control device 22 controls the driving device 18 to reset, so as to pull the connector 17 out of the positioning hole 16, thereby releasing the lock between the vacuum unit 3 and the air receiving device 8, so that the vacuum unit 3 continues to transmit forward, and the air receiving device 8 can automatically return to its original position along the guide device 12 under the action of the reset device 14, to wait for the next vacuum unit 3 to arrive, and then the above process is repeated.
Claims
1. A gas receiving system, characterized in that: The invention comprises a workpiece conveyor belt (2) for placing workpieces (1) and an equipment conveyor belt (4) for placing a vacuum unit (3); the workpiece conveyor belt (2) and the equipment conveyor belt (4) are arranged adjacent to each other and operate synchronously; the air suction port of the vacuum unit (3) and the air outlet of the workpiece (1) are connected via a pneumatic quick connector (5); the air supply port of the pneumatic quick connector (5) is connected to an air receiving pipe (6), and the pipe mouth of the air receiving pipe (6) is connected to an air receiving joint (7) arranged on the vacuum unit (3); an air receiving device (8) is arranged on one side of the equipment conveyor belt (4), and an air supply joint (9) matched with the air receiving joint (7) is arranged on the air receiving device (8); the air supply joint (9) is connected to the air receiving joint (7) by the air receiving device (8); The head (9) is connected to an external gas source (10); the gas receiving device (8) is also provided with a pushing device (11) connected to the gas supply connector (9) to push the gas supply connector (9) to a position connected to the gas receiving connector (7); the gas receiving device (8) is also provided with a guiding device (12) to enable the gas receiving device (8) to run along the conveying direction of the equipment conveyor belt (4); the gas receiving device (8) is also provided with a locking device (13) to lock or unlock the relative position between the gas receiving device (8) and the vacuum unit (3); the gas receiving device (8) is also provided with a resetting device (14) to enable the gas receiving device (8) to be reset along the direction of the guiding device (12); The guide device (12) is a linear guide rail (15) arranged at the bottom of the air receiving device (8), and the conveying direction of the linear guide rail (15) is consistent with the conveying direction of the equipment conveyor belt (4); The locking device (13) comprises a positioning hole (16) formed on the outer wall of the vacuum unit (3) and a plug-in connector (17) disposed on the air receiving device (8); a driving device (18) connected to the plug-in connector (17) is installed on the air receiving device (8) to drive the plug-in connector (17) to be inserted into the positioning hole (16) or to be separated from the positioning hole (16); The reset device (14) is a tension spring, one end of which is fixed to the tail end of the air receiving device (8), and the other end of which is fixed to the starting position point of the guide device (12).
2. A gas connection system according to claim 1, characterized in that: The pushing device (11) is a cylinder.
3. A gas connection system according to claim 1, characterized in that: The driving device (18) is a cylinder.
4. The gas connection system according to claim 1, characterized in that: The external air source (10) is an air compressor.
Citation Information
Patent Citations
Air conditioner compressor evacuation loop line
CN209558733U
Vacuumizing equipment with automatic pulling device
CN210218127U
Gas connection system
CN212672025U