Pneumatic device and material taking equipment

Abstract

The invention discloses a pneumatic device, which comprises an electromagnetic valve, a pneumatic valve and a pneumatic valve, the cylinder body is connected with the electromagnetic valve and is provided with a first gas path, a second gas path and a third gas path, the first gas path is in butt joint with the gas inlet, the second gas path is in butt joint with the gas outlet, a piston movement assembly is arranged in the second gas path, a vacuum suction assembly is arranged in the third gas path, and the piston movement assembly is connected with the vacuum suction assembly; the first gas circuit and the second gas circuit replace a traditional guide pipe, the cylinder body and the electromagnetic valve directly form gas circuit communication, pipeline disorder and complexity are avoided, the electromagnetic valve directly controls on-off of gas flow in the first gas circuit and the second gas circuit on the cylinder body, the gas flow control response of the electromagnetic valve is faster, and the service life of the electromagnetic valve is prolonged. The electromagnetic valve, the cylinder body with the gas circuit and the vacuum material suction assembly are assembled together in an integrated mode, so that the whole structure is simpler, and the integrated structure can directly complete gas circuit control, material suction and piston movement.

Description

Technical Field

[0001] The invention relates to the field of gas drive, and in particular to a pneumatic device and a material taking device. Background Art

[0002] A common gas-driven device is a cylinder, which is a device that converts the pressure energy of compressed air into mechanical energy. It is widely used in industrial automation, automobile manufacturing, mechanical processing and other fields. The cylinder is mainly composed of a cylinder barrel, end cover, piston, piston motion assembly and seals. The cylinder barrel is the main part of the cylinder. The piston performs linear reciprocating motion in the cylinder barrel. The piston motion assembly is connected to the piston to transmit power. The working principle of the cylinder is to use compressed air to push the piston to perform linear reciprocating motion in the cylinder.

[0003] In the field of material handling, especially in the handling of small objects such as electronic materials, chips, small hardware, plastic parts, etc., cylinders are often used as the power components in the Z-axis direction. A vacuum suction rod is connected to the piston motion component of the cylinder. The cylinder drives the vacuum suction rod to move in the Z-axis direction. The vacuum suction rod absorbs the material to achieve the absorption of the material. The cylinder is connected to the air compressor through the solenoid valve. The role of the solenoid valve in the cylinder is mainly to control the on-off and flow direction of the gas to achieve the telescopic movement of the cylinder and the control of complex movements. At present, this type of solenoid valve often uses a two-position five-way solenoid valve, and the air compressor The conduit on the compressor is first connected to the two-position five-way solenoid valve, and the two-position five-way solenoid valve is then connected to the cylinder through the conduit; firstly, such a conduit connection method will lead to messy and complicated pipelines, and it is also time-consuming to install; secondly, since the solenoid valve and the cylinder are connected through a long conduit, the efficiency of the solenoid valve in controlling the flow of air in the cylinder will be reduced due to the existence of the long conduit; finally, the cylinder, the solenoid valve, and the vacuum suction rod are all separate functional components, which are installed with various fixings or connectors, which will also lead to a complicated overall structure and time-consuming and labor-intensive assembly. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art such as complex structure, complicated wires, low solenoid valve control efficiency, etc.

[0005] First aspect The present invention provides a pneumatic device, comprising: A solenoid valve having an air inlet and an air outlet; The cylinder body is connected to the solenoid valve and is provided with a first air circuit, a second air circuit and a third air circuit. The first air circuit is connected to the air inlet, the second air circuit is connected to the air outlet, a piston motion component is provided in the second air circuit, a vacuum suction component is provided in the third air circuit, and the piston motion component is connected to the vacuum suction component.

[0006] Optionally, the second gas circuit includes a first branch and a second branch, the first branch is connected to the gas outlet, the first branch is communicated with the second branch, and the piston movement assembly is arranged in the second branch.

[0007] Optionally, the piston motion assembly includes a piston rod, a first retaining ring, and a second retaining ring. The piston rod is arranged in the second branch, the first retaining ring is arranged at one end of the second branch, the second retaining ring is arranged on the piston rod, a first spring is arranged between the first retaining ring and the second retaining ring, and the first spring is sleeved on the piston rod.

[0008] Optionally, a sealing seat is provided at one end of the piston rod, a first sealing member is provided on the sealing seat, a second sealing member is provided between the sealing seat and the second retaining ring, a connecting member is provided at the other end of the piston rod, and the vacuum suction assembly is connected to the piston rod via the connecting member.

[0009] Optionally, the vacuum suction assembly includes a first guide rod, a suction rod, and a suction head. The first guide rod is arranged in the third air circuit, a first cavity is provided in the connecting piece, one end of the suction rod is fixed in the first cavity, one end of the guide rod is fixed in the first cavity, the suction head is fixed at the other end of the suction rod, a second cavity is provided in the first guide rod, and a third cavity is provided in the suction rod, and the second cavity of the first guide rod is the same as the third cavity of the suction rod.

[0010] Optionally, the first guide rod is fixed in the first cavity of the connector by a first pin, a shaft sleeve and a sealing ring are provided in the third gas path, and the first guide rod passes through the sealing ring and the shaft sleeve in sequence.

[0011] Optionally, a fourth cavity is provided on the connecting member, one end of the piston rod passes through the fourth cavity, a retaining spring and a second spring are provided on the piston rod, a step is provided in the second cavity, one end of the second spring is connected to the retaining spring, and the other end of the second spring abuts against the step.

[0012] Optionally, a fifth cavity is provided in the cylinder body, a shaft sleeve and a second guide rod are provided in the fifth cavity, the second guide rod passes through the shaft sleeve, one end of the second guide rod is connected to the connecting piece and the second guide rod is parallel to the first guide rod.

[0013] Optionally, a groove is provided on the side wall of the fifth cavity, a groove is provided on the second guide rod, the groove on the second guide rod and the groove on the fifth cavity form a positioning hole, and a second pin is installed in the limiting hole.

[0014] Second aspect The present invention provides a material taking device, comprising: The pneumatic device of the first aspect, the first gas path in the cylinder body is connected to a positive pressure joint, and the third gas path is connected to a negative pressure joint; The variable pitch slide table is provided with a slide block, and the pneumatic device is installed on the slide block; The linear slide is provided with a connecting seat, the variable pitch slide is arranged on the connecting seat, the connecting seat is provided with a mounting plate, the mounting plate is provided with a vacuum generator and a connector, the vacuum generator is connected to the negative pressure joint through a conduit, and the connector is connected to the positive pressure joint through a conduit.

[0015] The beneficial effects of the present invention are as follows: the first air circuit and the second air circuit replace the traditional conduit, so that the cylinder body and the solenoid valve are directly connected to the air circuit, avoiding the complexity of the pipeline, and the installation is simple. It only needs to connect the first air circuit of the cylinder body with the air compressor. The solenoid valve directly controls the air flow interruption in the first air circuit and the second air circuit on the cylinder body, so that the airflow control response of the solenoid valve is faster, and the movement frequency of the piston motion component is improved. The solenoid valve, the cylinder body with the air circuit, and the vacuum suction component are assembled together in an integrated manner, making the overall construction simpler. As an integrated structure, it can directly complete the control of the air circuit, the suction of materials, and the piston movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 is a schematic diagram of the assembly of the pneumatic device in some embodiments; Figure 2 is a schematic cross-sectional view of a pneumatic device in some embodiments; Figure 3 is an exploded schematic diagram of a pneumatic device in some embodiments; Figure 4 is a schematic diagram of the structure of the cylinder body in some embodiments; Figure 5 is a schematic diagram of the structure of a solenoid valve in some embodiments; Figure 6 is a schematic diagram of the structure of a piston motion assembly in some embodiments; Figure 7 is a schematic diagram of the structure of a vacuum suction assembly in some embodiments; Figure 8 is a schematic cross-sectional view of a vacuum suction assembly in some embodiments; Fig. 9 It is a schematic diagram of the assembly of the material taking equipment in some embodiments.

[0018] Description of reference numerals: 1. Solenoid valve; 101. Air inlet; 102. Air outlet; 103. Exhaust hole; 2. Cylinder; 201. First air path; 202. Second air path; 203. Third air path; 204. First branch; 205. Second branch; 207. Second guide rod; 208. Positive pressure joint; 209. Negative pressure joint; 3. Piston motion assembly; 301. Piston rod; 302. First retaining ring; 303. Second retaining ring; 304. First spring; 305. Sealing seat; 306. First sealing member; 307. Second sealing member; 3 08. Second spring; 4. Vacuum suction assembly; 401. First guide rod; 402. Suction rod; 403. Suction head; 404. Second cavity; 405. Third cavity; 5. Connector; 501. First cavity; 502. First pin; 503. Fourth cavity; 504. Second pin; 505. Fifth cavity; 601. Variable pitch slide; 602. Sliding block; 603. Linear slide; 604. Connecting seat; 605. Mounting plate; 606. Vacuum generator; 607. Connector; 7. Pneumatic device; 8. Catheter. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0020] The present invention provides a pneumatic device 7, comprising: a solenoid valve 1, provided with an air inlet 101 and an air outlet 102; a cylinder body 2, which is connected to the solenoid valve 1 and provided with a first air path 201, a second air path 202, and a third air path 203, the first air path 201 is connected to the air inlet 101, the second air path 202 is connected to the air outlet 102, a piston movement component 3 is provided in the second air path 202, a vacuum suction component 4 is provided in the third air path 203, and the piston movement component 3 is connected to the vacuum suction component 4.

[0021] During implementation, the solenoid valve 1 is connected to the cylinder body 2, and the first air path 201 on the cylinder body 2 is aligned with the air inlet 101, and the second air path 202 is aligned with the air outlet 102. The first air path 201 is also used to connect to an external air compressor. A vacuum suction component 4 is installed in the third air path 203. The third air path 203 is also used to connect to an external vacuum generator 606. The air compressor introduces compressed air into the first air path 201, and the compressed air enters the solenoid valve 1 from the air inlet 101 of the solenoid valve 1. The compressed air then enters the second air path 202 from the air outlet 102 on the solenoid valve 1. The compressed air pushes the piston movement component 3 to move the piston in the second air path 202. The third air path 203 is connected to the vacuum generator 606. The vacuum generator 606 puts the third air path 203 in a negative pressure state. The piston movement component 3 is connected to the suction component, and the piston movement component 3 drives the suction component to absorb the material. The solenoid valve 1 is connected to the cylinder body 2, and the solenoid valve 1 is connected. Used to control the on-off and flow direction of airflow, the solenoid valve 1 controls the air from the first air path 201 to the air inlet 101 and the gas from the air outlet 102 to the second air path 202. The solenoid valve 1 is directly connected to the cylinder body 2, and the first air path 201 in the cylinder body 2 is connected to the air compressor. The first air path 201 and the second air path 202 replace the traditional conduit, so that the cylinder body 2 and the solenoid valve 1 are directly connected to the air path, avoiding the complexity of the pipeline, and the installation is simple. It only needs to connect the first air path 201 of the cylinder body 2 with the air compressor. The solenoid valve 1 directly controls the on-off of the air flow in the first air path 201 and the second air path 202 on the cylinder body 2, so that the airflow control response of the solenoid valve 1 is faster, which also increases the movement frequency of the piston motion component 3. The solenoid valve 1, the cylinder body 2 with the air path, and the vacuum suction component 4 are assembled together in an integrated manner, making the overall construction simpler. As an integrated structure, it can directly complete the control of the air path, the suction of materials, and the piston movement.

[0022] Furthermore, the solenoid valve 1 adopts a two-position three-way solenoid valve 1, which includes an air inlet 101, an air outlet 102, and an exhaust port. The air inlet 101, the air outlet 102, and the exhaust port of the solenoid valve 1 are arranged side by side at the bottom of the solenoid valve 1, one end of the first air path 201 leads to the top of the cylinder body 2, and one end of the second air path 202 also leads to the top of the cylinder body 2. The other end of the first air path 201 leads to the other side of the cylinder body 2. The other end of the first air path 201 is connected to a positive pressure connector 208, and the positive pressure connector 208 is connected to the air compressor through a conduit. The solenoid valve 1 is just installed on the top of the cylinder body 2, and the air inlet 101 is connected to the air compressor. The first air path 201 is connected, and the air outlet 102 is connected to the second air path 202. An opening is also provided on the top of the cylinder body 2, and the exhaust port is connected to the opening. The gas flowing out of the exhaust port flows out of the opening to the outside. The solenoid valve 1 is provided with a through hole, and the cylinder body 2 is provided with a screw hole. The screw hole on the cylinder body 2 corresponds to the position of the through hole on the solenoid valve 1. The solenoid valve 1 is fixed to the cylinder body 2 by screws. The cylinder body 2 is a thin cylinder body 2, which is smaller in size than the cylinder body 2 of a traditional cylinder. The width of the solenoid valve 1 is the same as the width of the cylinder body 2. The overall volume and weight of the pneumatic device 7 provided by the present invention are much smaller than those of the traditional cylinder and the solenoid valve 1, so that the pneumatic device 7 is more suitable for grabbing small materials.

[0023] In some embodiments, the second gas circuit 202 includes a first branch 204 and a second branch 205 , the first branch 204 is connected to the gas outlet 102 , the first branch 204 is communicated with the second branch 205 , and the piston motion assembly 3 is disposed in the second branch 205 .

[0024] During implementation, the gas flowing out of the outlet 102 of the solenoid valve 1 passes through the first branch 204 to the second branch 205, and the airflow pushes the piston motion component 3 to realize the piston movement. The second branch 205 continues the airflow passage and is also a cavity for the piston motion component 3 to move. The piston motion component 3 moves in the second branch 205.

[0025] Further, one end of the second branch 205 is connected to the first branch 204, the other end of the second branch 205 leads to one side of the cylinder 2, the other end of the second branch 205 is connected to the outside, and the first branch 204 serves as a transitional air path for air circulation to connect the second branch 205 and the solenoid valve 1. In some cases, the second air path 202 can also be only the second branch 205, and the second branch 205 is directly connected to the air outlet 102 of the solenoid valve 1.

[0026] In some embodiments, the piston motion assembly 3 includes a piston rod 301, a first retaining ring 302, and a second retaining ring 303. The piston rod 301 is arranged in the second branch 205, the first retaining ring 302 is arranged at one end of the second branch 205, the second retaining ring 303 is arranged on the piston rod 301, and a first spring 304 is arranged between the first retaining ring 302 and the second retaining ring 303, and the first spring 304 is sleeved on the piston rod 301.

[0027] During implementation, a second retaining ring 303 is installed on the piston rod 301, and a first spring 304 is sleeved on the piston rod 301, the piston rod 301 is installed in the second branch 205, the second retaining ring 303 passes through the piston rod 301 and is installed to one end of the second branch 205, at this time, the two ends of the first spring 304 respectively contact the first retaining ring 302 and the second retaining ring 303, and the second branch 205 is pushed by the same airflow to move the piston rod 301 in the second branch 205, the piston rod 301 moves in the direction of the second retaining ring 303, the first retaining ring 302 compresses the first spring 304, and after the piston rod 301 is pushed to a certain distance, the first spring 304 rebounds the piston rod 301, thereby realizing the piston movement.

[0028] Furthermore, a retaining spring is provided at one end of the second branch 205, and a second retaining ring 303 is arranged on the retaining spring. The retaining spring limits the second retaining ring 303. The first retaining ring 302 is integrally formed with the piston rod 301. The first retaining ring 302 moves with the piston rod 301. The piston rod 301 is divided into a head and a tail according to the size of the cross-sectional radius. The cross-sectional radius of the head is smaller than that of the tail. The head passes through the second retaining ring 303. A groove is provided at the junction of the head and the tail, and an O-ring is provided in the groove.

[0029] In some embodiments, a sealing seat 305 is provided at one end of the piston rod 301, a first sealing member 306 is provided on the sealing seat 305, a second sealing member 307 is provided between the sealing seat 305 and the second retaining ring 303, and a connecting member 5 is provided at the other end of the piston rod 301, and the vacuum suction assembly 4 is connected to the piston rod 301 through the connecting member 5.

[0030] During implementation, a sealing seat 305 is provided at one end of the piston rod 301, and a first sealing member 306 is provided on the sealing seat 305. The first sealing member 306 is close to the first branch 204, and a second sealing member 307 is provided between the sealing seat 305 and the second retaining ring 303. The first sealing member 306 and the second sealing member 307 jointly ensure the sealing of one end of the piston rod 301, and ensure that the gas flowing through the first branch 204 can push the piston rod 301. A connecting member 5 is provided at the other end of the piston rod 301, and a vacuum suction component 4 is connected to the piston rod 301 through the connecting member 5. When the piston rod 301 performs piston motion in the second branch 205, the vacuum suction component 4 is driven to move through the connecting member 5, thereby realizing the movement of the vacuum suction component 4 on the Z axis to pick up materials.

[0031] Furthermore, the first sealing member 306 is an O-ring, and the second sealing member 307 is a piston sealing ring. The O-ring is a rubber sealing ring with a circular cross section. Because its cross section is O-shaped, it is called an O-type rubber sealing ring, also called an O-ring. An annular groove is provided on the sealing seat 305, and the O-ring is arranged in the annular groove. The piston sealing ring is sleeved on the piston rod 301 and is located between the sealing seat 305 and the first retaining ring 302. The edge of the piston sealing ring contacts the side wall of the second branch 205.

[0032] In some embodiments, the vacuum suction assembly 4 includes a first guide rod 401, a suction rod 402, and a suction head 403. The first guide rod 401 is arranged in the third air path 203. A first cavity 501 is provided in the connecting piece 5. One end of the suction rod 402 is fixed in the first cavity 501. One end of the guide rod is fixed in the first cavity 501. The suction head 403 is fixed at the other end of the suction rod 402. A cavity is provided in the first guide rod 401 and a cavity is provided in the suction rod 402. The second cavity 404 of the first guide rod 401 is the same as the second cavity 404 of the suction rod 402.

[0033] During implementation, the first guide rod 401 is placed in the third gas path 203, one end of the first guide rod 401 is fixed in the first cavity 501 of the connecting member 5, and the suction rod 402 is fixed in the clamp of the connecting member 5, so as to achieve the fixation of the first guide rod 401 and the suction rod 402, the second cavity 404 of the first guide rod 401 and the third cavity 405 of the suction rod 402 are the same in the first cavity 501 of the connecting member 5, a suction head 403 is provided at one end of the suction rod 402, and the third gas path 203 is connected to the external vacuum generator 60 6. The vacuum generator 606 forms a negative pressure cavity among the third gas circuit 203, the second cavity 404 of the first guide rod 401, and the third cavity 405 of the suction rod 402. After the negative pressure is formed, the suction head 403 can suck the material. The piston rod 301 drives the connecting piece 5 to move, and the connecting piece 5 drives the first guide rod 401 to move in the third gas circuit 203. At the same time, the connecting piece 5 also drives the suction rod 402 to move in the Z-axis direction. The first guide rod 401 plays a guiding role, and the suction head 403 on the suction rod 402 plays a role in adsorbing the material.

[0034] In some embodiments, the first guide rod 401 is fixed in the first cavity 501 of the connector 5 by a first pin 502, a sleeve and a sealing ring are provided in the third gas path 203, and the first guide rod 401 passes through the sealing ring and the sleeve in sequence.

[0035] During implementation, the first guide rod 401 is fixed in the first cavity 501 of the connecting member 5 by the first pin 502, a first sleeve and a sealing ring are arranged in the third gas path 203, and the first guide rod 401 passes through the sealing ring and the sleeve in sequence. The sealing ring functions to ensure the sealing in the third gas path 203, and the sleeve assists the first guide rod 401 to move in the third gas path 203.

[0036] Furthermore, semicircular grooves are provided on both sides of one end of the first guide rod 401, and two semicircular grooves are correspondingly provided in the first cavity 501 of the connecting piece 5. When one end of the first guide rod 401 is placed in the cavity of the connecting piece 5, the semicircular grooves on the first guide rod 401 correspond to the semicircular grooves in the first cavity 501 in pairs, and the two semicircular grooves form a positioning hole. The first guide rod 401 is fixed in the first cavity 501 of the connecting piece 5 by passing a pin through the positioning hole. The first cavity 501 of the connecting piece 5 is provided with an internal thread, and one end of the suction rod 402 is provided with an external thread, and the suction rod 402 and the first cavity 501 of the connecting piece 5 are fixed by threads.

[0037] In some embodiments, a second cavity 404 is provided on the connecting member 5, one end of the piston rod 301 passes through the fourth cavity 503, a retaining spring and a second spring 308 are provided on the piston rod 301, a step is provided in the fourth cavity 503, one end of the second spring 308 is connected to the retaining spring, and the other end of the second spring 308 is connected to the step.

[0038] During implementation, a retaining spring is installed on the piston rod 301, and a second spring 308 is sleeved on the piston rod 301. One end of the second spring 308 is connected to the retaining spring, and the other end of the second spring 308 is in contact with the step in the fourth cavity 503. When the piston rod 301 moves, the second spring 308 plays a buffering role.

[0039] Furthermore, the portion of the piston rod 301 passing through the fourth cavity 503 is also provided with a retaining spring, and the retaining spring of the portion of the piston rod 301 passing through the fourth cavity 503 abuts against the connecting member 5 .

[0040] In some embodiments, a fifth cavity 505 is provided in the cylinder body 2, a sleeve and a second guide rod 207 are provided in the fifth cavity 505, the second guide rod 207 passes through the sleeve, one end of the second guide rod 207 is connected to the connecting member 5 and the second guide rod 207 is parallel to the first guide rod 401.

[0041] During implementation, a sleeve is set in the fifth cavity 505, and the second guide rod 207 is passed through the sleeve and installed in the fifth cavity 505 of the cylinder body 2. One end of the second guide rod 207 is connected to the connecting member 5 and the second guide rod 207 is parallel to the first guide rod 401. The piston rod 301 drives the connecting member 5 to move, and the connecting member 5 drives the second guide rod 207 to move in the fifth cavity 505. The first guide rod 401 and the second guide rod 207 jointly play a guiding role, so that the movement of the piston rod 301 will be more stable.

[0042] In some embodiments, a groove is provided on the side wall of the fifth cavity 505, a groove is provided on the second guide rod 207, the groove on the second guide rod 207 and the groove on the fifth cavity 505 form a positioning hole, and a second pin 504 is installed in the limiting hole.

[0043] During implementation, the second guide rod 207 is installed in the fifth cavity 505, the groove on the second guide rod 207 cooperates with the groove in the fifth cavity 505 to form a positioning hole, and then the second pin 504 is inserted into the positioning hole, thereby fixing the second guide rod 207 in the fifth cavity 505.

[0044] The present invention provides a material taking device, including: the pneumatic device 7 in the above-mentioned embodiment, the specific structure of the pneumatic device 7 has been described in detail in the above-mentioned embodiment, and will not be repeated here; the first air circuit 201 in the cylinder body 2 is connected to the positive pressure joint 208, and the third air circuit 203 is connected to the negative pressure joint 209; a variable pitch slide 601 is provided with a slider 602, and the pneumatic device 7 is installed on the slider 602; a linear slide 603 is provided with a connecting seat 604, the variable pitch slide 601 is arranged on the connecting seat 604, the connecting seat 604 is provided with a mounting plate 605, the mounting plate 605 is provided with a vacuum generator 606 and a connector 607, the vacuum generator 606 is connected to the negative pressure joint 209 through a conduit, and the connector 607 is connected to the positive pressure joint 208 through a conduit.

[0045] The pneumatic device 7 is installed on the slider 602 of the variable pitch slide 601. The variable pitch slide 601 can adjust the position of the pneumatic device 7 by adjusting the position of the slider 602. The variable pitch slide 601 is installed on the connecting seat 604 of the linear slide 603. The linear slide 603 can adjust the position of the variable pitch slide 601 by adjusting the position of the connecting seat 604. The pneumatic device 7 is aligned with the material to be sucked through the cooperation of the variable pitch slide 601 and the linear slide 603. A mounting plate 605 is arranged on the connecting seat 604. A vacuum generator 606 and a connector 607 are arranged on the mounting plate 605. The connector 607 is used to connect with the air compressor, connect with the positive pressure connector 208 on the first air circuit 201, and the positive pressure connector 208 is connected with the positive pressure connector through a conduit. The negative pressure connector 209 is connected with the negative pressure connector 209 on the second air circuit 202, and the negative pressure connector 209 is connected with the vacuum generator 606 through a conduit.

[0046] Furthermore, a plurality of sliders 602 are provided on the variable pitch slide 601 according to working requirements, and a pneumatic device 7 is installed on each slider 602. The connector 607 is a multi-way connector 607, and the multi-way connector 607 has an interface for docking an air compressor and a plurality of interfaces for docking the pneumatic devices 7, so as to realize air supply for a plurality of pneumatic devices 7 with one air compressor.

[0047] The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A pneumatic device, characterized in that: include: A solenoid valve having an air inlet and an air outlet; The cylinder body is connected to the solenoid valve and is provided with a first air circuit, a second air circuit and a third air circuit. The first air circuit is connected to the air inlet, the second air circuit is connected to the air outlet, a piston motion component is provided in the second air circuit, a vacuum suction component is provided in the third air circuit, and the piston motion component is connected to the vacuum suction component.

2. The pneumatic device according to claim 1, characterized in that: The second gas circuit includes a first branch and a second branch. The first branch is connected to the gas outlet, the first branch is communicated with the second branch, and the piston movement component is arranged in the second branch.

3. The pneumatic device according to claim 1, characterized in that: The piston motion assembly includes a piston rod, a first retaining ring, and a second retaining ring. The piston rod is arranged in the second branch, the first retaining ring is arranged at one end of the second branch, the second retaining ring is arranged on the piston rod, a first spring is arranged between the first retaining ring and the second retaining ring, and the first spring is sleeved on the piston rod.

4. The pneumatic device according to claim 3, characterized in that: A sealing seat is provided at one end of the piston rod, a first sealing member is provided on the sealing seat, a second sealing member is provided between the sealing seat and the second retaining ring, a connecting member is provided at the other end of the piston rod, and the vacuum suction assembly is connected to the piston rod through the connecting member.

5. The pneumatic device according to claim 4, characterized in that: The vacuum suction material suction assembly includes a first guide rod, a suction rod, and a suction head. The first guide rod is arranged in the third air circuit, a first cavity is arranged in the connecting piece, one end of the suction rod is fixed in the first cavity, one end of the guide rod is fixed in the first cavity, the suction head is fixed at the other end of the suction rod, a second cavity is arranged in the first guide rod, and a third cavity is arranged in the suction rod. The second cavity of the first guide rod is the same as the third cavity of the suction rod.

6. The pneumatic device according to claim 1, characterized in that: The first guide rod is fixed in the first cavity of the connecting piece through a first pin, a shaft sleeve and a sealing ring are arranged in the third gas path, and the first guide rod passes through the sealing ring and the shaft sleeve in sequence.

7. The pneumatic device according to claim 1, characterized in that: The connecting piece is provided with a fourth cavity, one end of the piston rod passes through the fourth cavity, the piston rod is provided with a retaining spring and a second spring, a step is provided in the second cavity, one end of the second spring is connected to the retaining spring, and the other end of the second spring abuts against the step.

8. The pneumatic device according to claim 1, characterized in that: A fifth cavity is arranged in the cylinder body, a shaft sleeve and a second guide rod are arranged in the fifth cavity, the second guide rod passes through the shaft sleeve, one end of the second guide rod is connected to the connecting piece, and the second guide rod is parallel to the first guide rod.

9. The pneumatic device according to claim 1, characterized in that: A groove is arranged on the side wall of the fifth cavity, a groove is arranged on the second guide rod, the groove on the second guide rod and the groove on the fifth cavity form a positioning hole, and a second pin is arranged in the limiting hole.

10. A material taking device, characterized in that: include: The pneumatic device according to any one of claims 1 to 9, wherein the first gas circuit in the cylinder body is connected to a positive pressure connector, and the third gas circuit is connected to a negative pressure connector; The variable pitch slide table is provided with a slide block, and the pneumatic device is installed on the slide block; The linear slide is provided with a connecting seat, the variable pitch slide is arranged on the connecting seat, the connecting seat is provided with a mounting plate, the mounting plate is provided with a vacuum generator and a connector, the vacuum generator is connected to the negative pressure joint through a conduit, and the connector is connected to the positive pressure joint through a conduit.

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