A pneumatic photovoltaic cell transport suction cup

Abstract

The present invention discloses a pneumatic photovoltaic cell handling suction cup, which relates to the technical field of photovoltaic cell processing equipment, including a pneumatic system, an air intake channel and an exhaust channel. The function of adsorbing and releasing silicon wafers is achieved by controlling the flow of high-pressure air. When the high-pressure air enters the suction cup, a low-pressure area is generated on the surface of the suction cup through the Bernoulli principle, so that the silicon wafer is tightly adsorbed on the suction cup. The hydraulic and control systems are used to adjust the position and pressure of the suction cup. The pressure sensor and the control unit can monitor and adjust the adsorption force in real time. The surface of the pad is often designed to be a vortex multi-turn structure to optimize air flow and increase the low pressure generated by the Bernoulli effect, thereby enhancing the adsorption force and reducing potential damage to the surface of the silicon wafer, effectively protecting the surface of the silicon wafer from scratches and damage, and accurately controlling the contact force between the suction cup and the silicon wafer to avoid damage or falling off of the silicon wafer due to excessive or insufficient adsorption force, thereby improving production efficiency and product quality.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic cell processing equipment, in particular to a pneumatic photovoltaic cell transport suction cup. Background Art

[0002] In photovoltaic cell production, fully automatic silicon wafer rewinding machine is a common equipment, which is mainly used to load square silicon wafers into baskets for use in the next process. During the operation of the rewinding machine, the suction cup plays a big role, which needs to suck up the silicon wafer and then transfer it to the transmission belt;

[0003] Under the prior art, a Chinese patent with publication number "CN203536460U" discloses a suction cup. The suction cup includes: a gas guide portion, including a conduit and a base, the base includes a cavity connected to the conduit and a gas outlet connected to the cavity; a suction cup base, the suction cup base includes a base and an annular first pad, the bottom surface of the base includes a guide groove and an annular surface arranged around the outer periphery of the guide groove, the base is arranged in the guide groove and the gas outlet is connected to the guide groove, and the first pad is adapted to and fixed to the annular surface. The technical solution of the utility model is applied to reduce the probability of contact between the solar cell and the metal part of the suction cup, and reduce the possibility of breakage of the solar cell silicon wafer;

[0004] The above patent uses rubber parts to contact the silicon wafer. The rubber parts will also be affected by the use environment and time, and their adsorption performance and durability may be affected. The suction cup base, the surrounding disc walls and the rubber parts are all fixed structures. After long-term use, the contact force with the silicon wafer cannot be controlled due to the deformation of the rubber parts. The lack of precise control of the adsorption force may cause the suction cup to apply too much or too little force, thereby increasing the possibility of silicon wafer breakage. It is necessary to improve the existing technology. To this end, we propose a pneumatic photovoltaic cell handling suction cup to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a pneumatic photovoltaic cell handling suction cup to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0007] The present invention provides a pneumatic photovoltaic cell handling suction cup, comprising a fixed roller, one end of the fixed roller is fixedly connected to an assembly disk, a side of the assembly disk away from the fixed roller is provided with a pad for contacting a silicon wafer, a control component is provided between the pad and the assembly disk, the pad is connected to the assembly disk through the control component, an air intake channel is provided inside the fixed roller, an assembly chamber is provided on a side of the assembly disk close to the pad, a connecting hole is provided on the inner wall of an end of the assembly chamber close to the fixed roller, a guide groove is provided on a side of the assembly disk close to the pad, an exhaust channel is provided on one end of the outer ring of the guide groove close to the fixed roller, a guide window is provided on the surface of the pad, the assembly chamber is connected to the air intake channel, the guide groove is a multi-circle spiral structure, one end of the inner ring of the guide groove is connected to the The connecting hole is connected, and a fixed base is built into the assembly chamber. A pressure sensor is installed on the side of the fixed base close to the pad, and the input end of the pressure sensor faces the pad. The input end of the pressure sensor is fixedly connected to a pressure-bearing plate, and the output end of the pressure sensor is electrically connected to the input end of an external hydraulic component control unit. The control component also includes a plurality of fixed grooves, and the fixed grooves are arranged on the side of the assembly disk close to the pad. The plurality of fixed grooves are evenly distributed around the axis of the assembly disk. A fixed cylinder is fixedly connected to the bottom of the inner cavity of the fixed groove, and a moving seat is built into the fixed cylinder. The moving seat is slidably connected to the inner wall of the fixed cylinder, and a moving roller is fixedly connected to the side of the moving seat away from the connecting hose, and a top platform is fixedly connected to the end of the moving roller close to the pad, and an end of the top platform away from the moving roller is fixedly connected to the pad.

[0008] Preferably, the assembly chamber coincides with the axis of the assembly disk.

[0009] Preferably, one end of the exhaust channel away from the guide groove passes through the fixed roller, the pad is made of rubber, and the guide groove is connected to the air intake channel through a connecting hole.

[0010] Preferably, the guide window matches the guide groove position, the pad cross-sectional area matches the assembly plate, the fixed base is fixedly connected to the inner wall of the assembly chamber, and the fixed base is placed at the bottom of the connecting hole.

[0011] Preferably, the pressure-bearing sheet is made of rubber, is placed in the assembly chamber, and is slidably connected to the inner wall of the assembly chamber.

[0012] Preferably, the control assembly comprises a fixing ring, the fixing ring is sleeved on the surface of the assembly disk, and the inner ring wall of the fixing ring is fixedly connected to the assembly disk.

[0013] Preferably, the gasket is placed in a fixed ring, and the gasket is slidably connected to the inner ring wall of the fixed ring around the gasket.

[0014] Preferably, a connecting hose is fixedly connected to the bottom of the inner cavity of the fixed cylinder, and the fixed cylinder is connected to the external hydraulic component through the connecting hose.

[0015] Preferably, a rubber ring is sleeved around the moving seat, the inner ring wall of the rubber ring is fixedly connected to the moving seat, and the outer ring wall of the rubber ring is in contact with the inner wall of the fixed tube.

[0016] Preferably, one end of the moving roller away from the moving seat passes through the fixed cylinder and extends into the fixed groove, and the moving roller is slidably connected to the inner wall of the fixed cylinder.

[0017] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0018] The present invention includes a main suction cup and an adsorption surface. The pad is made of high-strength, low-friction rubber to ensure stable adsorption force and good protection of the silicon wafer surface. The pneumatic system is its core driving part, which includes an air intake channel and an exhaust channel. The function of adsorbing and releasing the silicon wafer is achieved by controlling the flow of high-pressure air. When the high-pressure air enters the suction cup, a low-pressure area is generated on the surface of the suction cup through the Bernoulli principle, thereby tightly adsorbing the silicon wafer on the suction cup.

[0019] The hydraulic and control system is used to adjust the position and pressure of the suction cup to ensure stability and safety when adsorbing silicon wafers. This includes a pressure sensor and a control unit that can monitor and adjust the adsorption force in real time to accommodate silicon wafers of different sizes and weights.

[0020] When high-speed air flows through the surface of the pad, it forms a low-pressure area on the surface. This low-pressure capability enables the suction cup to effectively adsorb the silicon wafer, and maintain a stable adsorption effect even when there are slight unevenness on the surface. The contact pressure between the suction cup and the silicon wafer is monitored by the built-in pressure sensor. The control system can adjust the air intake and liquid pressure to ensure that the silicon wafer is not damaged during the adsorption and release process. The vortex guide design and the suction cup surface are often designed into a vortex multi-circle structure. This design can optimize air flow and increase the low pressure generated by the Bernoulli effect, thereby enhancing the adsorption force and reducing potential damage to the silicon wafer surface.

[0021] The precise control system effectively protects the surface of the silicon wafer from scratches and damage. Through the pressure sensor and hydraulic control system, it can accurately control the contact force between the suction cup and the silicon wafer to avoid damage or falling off of the silicon wafer due to excessive or insufficient adsorption force. The silicon wafer can be transported quickly and stably, which improves production efficiency and reduces the occurrence of human errors. The equipment not only improves production efficiency, but also greatly improves product quality and safety. It is an indispensable part of modern manufacturing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall internal structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the internal structure of the assembly chamber of the present invention;

[0026] Figure 4 The present invention Figure 2 The enlarged structural diagram at A in the middle;

[0027] Figure 5 It is a schematic diagram of the connection structure between the pad and the assembly disk of the present invention;

[0028] Figure 6 The present invention Figure 5 The enlarged structural diagram at B in the middle;

[0029] Figure 7 It is a schematic diagram of the control component structure of the present invention.

[0030] In the figure:

[0031] 1. Fixed roller; 101. Assembly plate; 102. Air inlet channel; 103. Assembly chamber; 104. Connecting hole; 105. Guide groove; 106. Exhaust channel; 107. Pad; 108. Guide window; 109. Fixed base; 110. Pressure sensor; 111. Pressure plate; 2. Control assembly; 201. Fixed ring; 202. Fixed groove; 203. Fixed cylinder; 204. Connecting hose; 205. Moving seat; 206. Rubber ring; 207. Moving roller; 208. Top platform. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0033] See also Figure 1-Figure 7The present invention provides a pneumatic photovoltaic cell handling suction cup, comprising a fixed roller 1, one end of the fixed roller 1 is fixedly connected to an assembly disk 101, a side of the assembly disk 101 away from the fixed roller 1 is provided with a pad 107 for contacting a silicon wafer, a control component 2 is provided between the pad 107 and the assembly disk 101, the pad 107 is connected to the assembly disk 101 through the control component 2, an air inlet channel 102 is provided inside the fixed roller 1, an assembly chamber 103 is provided on a side of the assembly disk 101 close to the pad 107, the axis of the assembly chamber 103 coincides with the axis of the assembly disk 101, the assembly chamber 103 is communicated with the air inlet channel 102, and a connecting hole 104 is provided on the inner wall of one end of the assembly chamber 103 close to the fixed roller 1, A guide groove 105 is provided on one side of the assembly disk 101 close to the pad 107. The guide groove 105 is a multi-circle spiral structure. One end of the inner ring of the guide groove 105 is connected to the connecting hole 104. The guide groove 105 is connected to the air inlet channel 102 through the connecting hole 104. An exhaust channel 106 is provided on one side of the outer ring of the guide groove 105 close to the fixed roller 1. The end of the exhaust channel 106 away from the guide groove 105 passes through the fixed roller 1. The pad 107 is made of rubber. A guide window 108 that passes through the pad 107 is provided on the surface of the pad 107. The guide window 108 matches the position of the guide groove 105. The cross-sectional area of ​​the pad 107 matches the assembly disk 101. The assembly chamber 103 has a built-in fixed base 109, the fixed base 109 is fixedly connected to the inner wall of the assembly chamber 103, the fixed base 109 is placed at the bottom of the connecting hole 104, a pressure sensor 110 is installed on the side of the fixed base 109 close to the pad 107, the input end of the pressure sensor 110 faces the pad 107, the input end of the pressure sensor 110 is fixedly connected to a pressure-bearing sheet 111, the pressure-bearing sheet 111 is made of rubber, the pressure-bearing sheet 111 is placed in the assembly chamber 103, and the pressure-bearing sheet 111 is slidably connected to the inner wall of the assembly chamber 103, the flow direction of the high-pressure fast-flow air is from the air inlet channel 102, the assembly chamber 103, the connecting hole 104, the guide groove 105 and the guide window 108, and finally out of the exhaust channel 106, The assembly disk 101 is in contact with the battery silicon wafer through the rubber pad 107. The assembly disk 101 and the guide window 108 and the guide groove 105 on the surface of the pad 107 are a vortex multi-turn structure. In the Bernoulli effect, the pressure decreases when the speed increases during the flow of the fluid. When the fluid flows on a pipe or a solid surface, the pressure decreases when the speed increases. The high-pressure air flows in the guide window 108, so that the air pressure in the multi-turn vortex window where the silicon wafer contacts the pad 107 is reduced, thereby allowing the silicon wafer to be adsorbed on the pad 107. Due to the special multi-turn vortex structure, the fixed adsorption effect is more uniform and not easy to fall off. The pad 107 is made of rubber and is not easy to damage the silicon wafer.

[0034] At the same time, in order to prevent the pad 107 from deforming and affecting the contact and fixation with the silicon wafer, a fixing ring 201 is provided in the control component 2. The fixing ring 201 is sleeved on the surface of the assembly disk 101, and the inner ring wall of the fixing ring 201 is fixedly connected to the assembly disk 101. The pad 107 is placed in the fixing ring 201, and the pad 107 is slidably connected to the inner ring wall of the fixing ring 201 around. The control component 2 also includes a plurality of fixing grooves 202, which are opened on one side of the assembly disk 101 close to the pad 107, and the plurality of fixing grooves 202 are evenly distributed around the axis of the assembly disk 101, so as to fix the pad 107. The bottom of the inner cavity of the fixed groove 202 is fixedly connected to a fixed cylinder 203, and the bottom of the inner cavity of the fixed cylinder 203 is fixedly connected to a connecting hose 204. The fixed cylinder 203 is connected to the external hydraulic component through the connecting hose 204. The output end of the pressure sensor 110 is electrically connected to the input end of the external hydraulic component control unit. The fixed cylinder 203 has a built-in moving seat 205, and the moving seat 205 is slidably connected to the inner wall of the fixed cylinder 203. A rubber ring 206 is sleeved around the moving seat 205. The inner ring wall of the rubber ring 206 is fixedly connected to the moving seat 205, and the outer ring wall of the rubber ring 206 is fixedly connected to the fixed cylinder 203. The inner wall of the cylinder 203 is in contact with the inner wall of the cylinder 203, and the side of the moving seat 205 away from the connecting hose 204 is fixedly connected with a moving roller 207. The end of the moving roller 207 away from the moving seat 205 penetrates the fixed cylinder 203 and extends into the fixed groove 202. The moving roller 207 is slidably connected to the inner wall of the fixed cylinder 203. The end of the moving roller 207 close to the pad 107 is fixedly connected with a top platform 208. The end of the top platform 208 away from the moving roller 207 is fixedly connected to the pad 107. In the initial state, the pressure-bearing sheet 111 at the bottom of the fixed base 109 and the pad 107 are in contact with the silicon wafer. The contact force is the same. After long-term use, due to the deformation of the rubber part of the pad 107, the contact force between the pad 107, the pressure plate 111 and the silicon wafer will be different. After receiving the signal, the pressure sensor 110 can start the external hydraulic part to inject or discharge hydraulic oil into the fixed cylinder 203 through the hydraulic hose, driving the pad 107 to move, and then maintain the same horizontal position as the pressure plate 111, and the contact force with the silicon wafer remains unchanged. Precise control can prevent the device from exerting too much or too little force on the silicon wafer, and the silicon wafer is not easy to fall off or be damaged.

[0035] How it works

[0036] During actual use, the flow direction of high-pressure fast-flow air is from the air inlet channel 102, the assembly chamber 103, the connecting hole 104, the guide groove 105 and the guide window 108, and finally out of the exhaust channel 106. The assembly disk 101 contacts the battery silicon wafer through the rubber pad 107. Because the assembly disk 101 and the guide window 108 and the guide groove 105 on the surface of the pad 107 are vortex multi-turn structures, in the Bernoulli effect, the pressure decreases when the speed increases during the flow of the fluid. When the fluid flows on a pipe or a solid surface, its pressure decreases when the speed increases. The high-pressure air flows in the guide window 108, so that the air pressure in the multi-turn vortex window where the silicon wafer contacts the pad 107 is reduced, so that the silicon wafer can be adsorbed on the pad 107. Due to the special multi-turn vortex structure, its fixed adsorption effect is more uniform and not easy to fall off. The pad 107 is made of rubber, which is not easy to damage the silicon wafer. At the same time, in the initial state, its fixed base The contact force between the pressure plate 111 at the bottom of 109 and the pad 107 and the silicon wafer is the same. After long-term use, the deformation of the rubber part of the pad 107 will cause the contact force between the pad 107, the pressure plate 111 and the silicon wafer to be different. After receiving the signal, the pressure sensor 110 can start the external hydraulic part to inject or discharge hydraulic oil into the fixed cylinder 203 through the hydraulic hose, drive the pad 107 to move, and then maintain the same horizontal position as the pressure plate 111, and the contact force with the silicon wafer remains unchanged. Precise control can prevent the device from applying too much or too little force to the silicon wafer, and the silicon wafer is not easy to fall off or be damaged. The precise control system effectively protects the surface of the silicon wafer from scratches and damage. Through the pressure sensor 110 and the hydraulic control system, the contact force between the suction cup and the silicon wafer can be accurately controlled to avoid damage or falling of the silicon wafer due to excessive or insufficient adsorption force, and the silicon wafer can be quickly and stably transported, thereby improving production efficiency and reducing the occurrence of human errors.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pneumatic photovoltaic cell handling suction cup, characterized in that: The invention comprises a fixed roller, one end of which is fixedly connected with an assembly disk, a side of the assembly disk away from the fixed roller is provided with a pad for contacting a silicon wafer, a control component is provided between the pad and the assembly disk, the pad is connected to the assembly disk through the control component, an air intake channel is provided inside the fixed roller, an assembly chamber is provided on a side of the assembly disk close to the pad, a connecting hole is provided on the inner wall of an end of the assembly chamber close to the fixed roller, a guide groove is provided on a side of the assembly disk close to the pad, the assembly chamber is connected with the air intake channel, the guide groove is a multi-circle spiral structure, one end of the inner ring of the guide groove is connected with the connecting hole, one end of the outer ring of the guide groove close to the fixed roller is provided with an exhaust channel, a guide window is provided on the surface of the pad that penetrates through itself, and the assembly A fixed base is built into the chamber, a pressure sensor is installed on a side of the fixed base close to the pad, the input end of the pressure sensor faces the pad, the input end of the pressure sensor is fixedly connected to a pressure-bearing plate, the output end of the pressure sensor is electrically connected to the input end of an external hydraulic component control unit, the control component also includes a plurality of fixed grooves, the fixed grooves are arranged on a side of the assembly disk close to the pad, the plurality of fixed grooves are evenly distributed around the axis of the assembly disk, a fixed cylinder is fixedly connected to the bottom of the inner cavity of the fixed groove, a moving seat is built into the fixed cylinder, the moving seat is slidably connected to the inner wall of the fixed cylinder, a moving roller is fixedly connected to a side of the moving seat away from the connecting hose, the end of the moving roller close to the pad is fixedly connected to a top platform, and the end of the top platform away from the moving roller is fixedly connected to the pad.

2. A pneumatic photovoltaic cell handling suction cup according to claim 1, characterized in that: The assembly chamber coincides with the axis of the assembly disk.

3. The pneumatic photovoltaic cell handling suction cup according to claim 1, characterized in that: One end of the exhaust channel away from the guide groove passes through the fixed roller, the pad is made of rubber, and the guide groove is connected with the air intake channel through a connecting hole.

4. The pneumatic photovoltaic cell handling suction cup according to claim 1, characterized in that: The guide window matches the guide groove position, the pad plate cross-sectional area matches the assembly plate, the fixed base is fixedly connected to the inner wall of the assembly chamber, and the fixed base is placed at the bottom of the communicating hole.

5. The pneumatic photovoltaic cell handling suction cup according to claim 1, characterized in that: The pressure-bearing sheet is made of rubber material, is placed in the assembly chamber, and is slidably connected to the inner wall of the assembly chamber.

6. The pneumatic photovoltaic cell handling suction cup according to claim 1, characterized in that: The control component comprises a fixing ring, which is sleeved on the surface of the assembly disk, and the inner ring wall of the fixing ring is fixedly connected to the assembly disk.

7. The pneumatic photovoltaic cell handling suction cup according to claim 1, characterized in that: The pad is placed in the fixing ring, and the pad is slidably connected to the inner ring wall of the fixing ring on all sides.

8. The pneumatic photovoltaic cell handling suction cup according to claim 1, characterized in that: A connecting hose is fixedly connected to the bottom of the inner cavity of the fixed cylinder, and the fixed cylinder is communicated with an external hydraulic component through the connecting hose.

9. The pneumatic photovoltaic cell handling suction cup according to claim 1, characterized in that: A rubber ring is sleeved around the moving seat, the inner ring wall of the rubber ring is fixedly connected to the moving seat, and the outer ring wall of the rubber ring is in contact with the inner wall of the fixing tube.

10. The pneumatic photovoltaic cell handling suction cup according to claim 1, characterized in that: One end of the moving roller away from the moving seat passes through the fixed cylinder and extends into the fixed groove, and the moving roller is slidably connected to the inner wall of the fixed cylinder.

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