Sheet adsorption device

Abstract

The utility model provides a sheet adsorption device which comprises a base, at least one air guide channel is arranged on the adsorption surface of the base, an air blowing channel is arranged in the base, the air inlet end of the air blowing channel is connected with an air blowing device, and the air exhaust end of the air blowing channel is located in each air guide channel; the air blowing device supplies compressed air into the air blowing channel, and the air guiding channel is configured to guide high-speed air exhausted by the exhaust end of the air blowing channel to advance along the air guiding channel so that an adsorption area which extends along the air guiding channel and is based on the Bernoulli negative pressure effect can be formed on the adsorption face of the base. According to the sheet body adsorption device, the air guide channels are formed in the adsorption surface of the base, so that high-speed air advances along the air guide channels when a sheet body is adsorbed, and the air flow directions between the air guide channels in the sheet body adsorption device or between the air guide channels of adjacent sheet body adsorption devices are not mutually influenced; therefore, the adsorption effect of the sheet body adsorption device is not influenced, and an air blowing space does not need to be reserved.

Description

Technical Field

[0001] The present application belongs to the technical field of battery cell processing, and in particular, relates to a cell adsorption device. Background Art

[0002] During the processing of battery cells, it is necessary to use an adsorption conveying device to convey the wafers (such as silicon wafers or battery cells). The adsorption conveying device usually includes at least two conveyor belts arranged side by side and at least one pair of adsorption devices. The two adsorption devices in each pair correspond to the two outermost conveyor belts respectively. The adsorption device blows air to one or both sides of the conveyor belt to form a Bernoulli negative pressure to adsorb the wafer, so that the wafer is attached to the conveyor belt for transportation.

[0003] At present, the blowing directions of the two adsorption devices in each existing pair are opposite, that is, they are both facing the inside of the conveyor belt. This method makes the airflow direction at the gas intersection chaotic, affecting the adsorption effect of the sheet. Alternatively, the two adsorption devices in each pair of adsorption devices have opposite blowing directions, that is, they are both facing the outside of the conveyor belt. This method requires reserving a blowing space on the outside of the conveyor belt, which occupies a large space. Moreover, if multiple adsorption conveying devices are used side by side, the adsorption device in each adsorption conveying device will blow air outwards to the sheet on the side adsorption conveying device, so that the conveying of the sheet on the side adsorption conveying device is affected, and there is a risk of the sheet falling. Utility Model Content

[0004] The purpose of the present application is to provide a sheet adsorption device to solve the above-mentioned problems existing in the existing adsorption devices.

[0005] To achieve this goal, this application adopts the following technical solutions:

[0006] The present application provides a sheet adsorption device, which includes a base, and at least one air guide channel is provided on the adsorption surface of the base, wherein:

[0007] An air blowing channel is provided in the base, the air inlet end of the air blowing channel is connected to the air blowing device, and the exhaust end of the air blowing channel is located in each air guide channel;

[0008] The blowing device supplies compressed air into the blowing channel, and the air guide channel is configured to guide the high-speed gas discharged from the exhaust end of the blowing channel to travel along the air guide channel to form an adsorption area based on the Bernoulli negative pressure effect extending along the air guide channel on the adsorption surface of the base.

[0009] The sheet adsorption device proposed in the present application is provided with an air guide channel on the adsorption surface of the base. When the sheet is adsorbed, high-speed gas travels along the air guide channel, and then an adsorption area based on the Bernoulli negative pressure effect extending along the air guide channel is formed on the adsorption surface of the base, so that the gas flow directions between the air guide channels in the sheet adsorption device or between the air guide channels of adjacent sheet adsorption devices will not interfere with each other, thereby not affecting the adsorption effect of the sheet adsorption device, and there is no need to reserve blowing space.

[0010] Optionally, the air guide channel is a strip groove with open ends, the exhaust end of the air blowing channel is located in the groove of each air guide channel, and the high-speed gas discharged from the exhaust end of the air blowing channel is discharged toward any one of the ports of the strip groove, or the high-speed gas discharged from the exhaust end of the air blowing channel is discharged toward both ports of the strip groove at the same time.

[0011] Alternatively, the air guide channel is a strip groove with one end open, the exhaust end of the air blowing channel is located in the groove of each of the air guide channels, and the high-speed gas discharged from the exhaust end of the air blowing channel is discharged toward the open end of the strip groove.

[0012] By setting the air guide channel as a strip groove with open ends, and setting the high-speed gas discharged from the exhaust end of the blowing channel to be discharged toward any one port of the strip groove or toward both ports of the strip groove at the same time, or setting the air guide channel as a strip groove with open end, and setting the high-speed gas discharged from the exhaust end of the blowing channel to be discharged toward the open end of the strip groove, a gas guide channel with a simple structure and easy processing is provided, and a strip-shaped adsorption area is formed on the adsorption surface of the base, thereby improving the adsorption effect.

[0013] Optionally, two air guide channels are arranged in parallel on the adsorption surface of the base, and a support surface is formed on the base between the two air guide channels. The support surface is configured to support the conveyor belt. The length direction of the air guide channel is parallel to the conveying direction of the conveyor belt. The adsorption force formed at the adsorption area is configured to adsorb the sheet transported on the conveyor belt.

[0014] By arranging two air guide channels in parallel on the adsorption surface of the base, a supporting surface for supporting the conveyor belt is formed on the base between the two air guide channels, so that the sheet adsorption device can cooperate with the conveyor belt to transport the sheet; at the same time, the two air guide channels form two adsorption areas on both sides perpendicular to the conveying direction of the conveyor belt; so as to adsorb the sheet on the conveyor belt toward the conveying surface of the conveyor belt, thereby increasing the friction between the sheet and the conveyor belt, avoiding slipping or shaking of the sheet during transportation, etc., thereby greatly improving the stability and efficiency of conveying the sheet by the conveyor belt.

[0015] Optionally, at least one protrusion is provided on the traveling path of the high-speed gas in the gas guide channel, and the high-speed gas in the gas guide channel bypasses the protrusion to make the high-speed gas in the gas guide channel close to the adsorption surface of the base at the protrusion.

[0016] By arranging at least one protrusion in the air guide channel, the high-speed gas passing through the protrusion moves closer to the adsorption surface of the base. The closer the high-speed gas in the air guide channel is to the adsorption surface, the stronger the adsorption force at the adsorption surface is, thereby further improving the adsorption effect of the sheet adsorption device.

[0017] Optionally, at least one first chamber is defined in the base, a first disassembly component is detachably fixed in each first chamber, a first through hole communicating with the first chamber is defined in the air guide channel, and a portion of the first disassembly component extends out of the first through hole to form a protrusion in the air guide channel.

[0018] Through the cooperation of the first disassembly component, the first chamber and the first through hole, a protrusion is formed in the air guide channel; at the same time, the first disassembly component and the base are split structures, which is convenient for processing, maintenance and repair, and reduces processing costs and use costs.

[0019] Optionally, the first disassembly component is a third latch pin, and a portion of an outer peripheral surface of the third latch pin protrudes from the first through hole to form an arc-shaped protrusion.

[0020] By setting the first disassembly and assembly part as the third latch, a first disassembly and assembly part with a simple structure and easy processing is provided; at the same time, the third latch cooperates with the first through hole to form an arc-shaped protrusion, which is conducive to the flow of high-speed gas through the protrusion to ensure the adsorption effect.

[0021] Optionally, a raised ramp is provided on the bottom surface of the air guide channel, and the ramp constitutes a raised portion. When the high-speed gas travels to the ramp, it travels along the ramp to get closer to the adsorption surface of the base.

[0022] By arranging a raised ramp on the bottom surface of the air guide channel, a raised portion is formed in the air guide channel; at the same time, the ramp can be an integrated structure with the base, which has a simple structure and is easy to implement.

[0023] Optionally, the highest position of the protrusion is located in the air guide channel.

[0024] By setting the highest position of the protrusion in the air guide channel, that is, when the high-speed gas passes through the protrusion, it still flows inside the air guide channel, preventing the high-speed gas from being led out of the air guide channel by the protrusion, thereby ensuring the adsorption effect.

[0025] Optionally, a second chamber is opened in the base, a second disassembly component is detachably fixed in the second chamber, the blowing channel is opened on the second disassembly component, a second through hole connected to the second chamber is opened in the air guide channel, a part of the second disassembly component protrudes from the second through hole, and the exhaust end of the blowing channel is located at the part of the second disassembly component protruding from the second through hole, so that the high-speed gas in the blowing channel can be discharged into each air guide channel.

[0026] Through the cooperation of the second disassembly part, the second chamber and the second through hole, compressed air is supplied to each air guide channel; at the same time, the second disassembly part and the base adopt a split structural design, which is convenient for processing, maintenance and overhaul, and reduces processing cost and use cost.

[0027] Optionally, the second disassembly part includes a first latch and a second latch, the first latch is detachably fixed in the second chamber, a third chamber is opened on the first latch, and the second latch is detachably fixed in the third chamber, the blowing channel includes a first channel, a second channel and a third channel, the first channel and the second channel are opened on the first latch and connected to the third chamber, the third channel is opened on the second latch and connected to the third chamber, the air inlet end of the first channel is connected to the blowing device, the exhaust end of the first channel is connected to the air inlet end of the third channel through the third chamber, the exhaust end of the third channel is connected to the air inlet end of the second channel, and the exhaust end of the second channel serves as the exhaust end of the blowing channel and is located in each air guide channel.

[0028] Through the cooperation of the first latch, the second latch and the third chamber, a second disassembly component with a split structure is provided, which is easy to process, install and disassemble; at the same time, the manufacturing cost and the use cost can be reduced.

[0029] Optionally, a fourth channel communicating with the third chamber is provided on the outer peripheral surface of the first latch, and the fourth channel is connected with the second channel.

[0030] By opening the fourth channel on the outer peripheral surface of the first latch, the second channel can be easily processed, thereby reducing the processing cost.

[0031] Optionally, there are two second channels, and both of the two second channels are strip-shaped holes, and the length directions of the two second channels are parallel to the length direction of the first pin. The fourth channel is an arc-shaped hole extending circumferentially along the first pin, and both ends of the arc-shaped hole are respectively connected to the two second channels. There are two air guide channels, and both ends of each second channel extend into the two air guide channels respectively. The two ends of the second channel are exhaust ends, and the exhaust directions of the two exhaust ends in the same air guide channel are opposite.

[0032] By setting two second channels and two air guide channels, both ends of each second channel are exhaust ends, and the exhaust directions of the two exhaust ends in the same air guide channel are opposite, thereby forming two exhaust ends with opposite exhaust directions in each air guide channel; the overall structure is simple, and the adsorption effect of the sheet adsorption device is improved.

[0033] Optionally, a partial outer peripheral surface of the first pin protrudes from the second through hole and forms an arc-shaped convex portion in each air guide channel, and two exhaust ends in each air guide channel are respectively arranged at the junction of the two end edges of the convex portion and the bottom surface of the air guide channel.

[0034] By setting the two exhaust ends in each air guide channel at the junction of the two end edges of the convex portion and the bottom surface of the air guide channel, it is ensured that the high-speed gas discharged from the exhaust ends is blown out along the bottom surface of the air guide channel, which is beneficial to control the direction of the air flow in the air guide channel and ensure the adsorption effect of the sheet adsorption device.

[0035] Optionally, a first mounting hole is formed on the first latch, the first mounting hole is connected to the third chamber, a first locking member is provided in the first mounting hole, and the first locking member is pressed against the outer peripheral surface of the second latch to fix the second latch in the third chamber.

[0036] Through the cooperation between the first mounting hole and the first locking member, the second latch can be detachably fixed in the third chamber, providing a second latch installation method with a simple structure, low cost and easy disassembly and assembly.

[0037] Optionally, at least one second mounting hole is opened on the base, the second mounting hole is connected to the second chamber, and a second locking member is matched in the second mounting hole. The second locking member passes through the second mounting hole and is tightened on the first pin to fix the first pin in the second chamber.

[0038] Through the cooperation between the second mounting hole and the second locking member, the first latch can be detachably fixed in the second chamber, providing a first latch installation method with a simple structure, low cost and easy disassembly and assembly.

[0039] Optionally, a first plane is opened on the outer peripheral surface of the first pin, a first mounting hole is opened on the first plane, a third mounting hole is opened on the base, a pipe joint is installed at the third mounting hole, the pipe joint is connected to the blowing device through a pipeline, the air outlet of the pipe joint is opposite to the first plane and arranged at a distance, the gap between the air outlet of the pipe joint and the first plane serves as a gas channel, and the gas channel is connected to the first channel.

[0040] By opening a first plane on the first pin, opening a first mounting hole on the first plane, opening a third mounting hole for mounting the pipe joint on the base, and forming a gap as a gas channel between the air outlet of the pipe joint and the first plane, the compressed air of the blowing device is supplied into the first channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the three-dimensional structure of the first sheet adsorption device provided by the present application from a first viewing angle;

[0042] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the middle sheet adsorption device from a second viewing angle;

[0043] Figure 3 yes Figure 1 A schematic top view of the middle sheet adsorption device;

[0044] Figure 4 yes Figure 1 A schematic side view of the middle sheet receiving device;

[0045] Figure 5 yes Figure 4 Schematic cross-sectional view along the AA direction;

[0046] Figure 6 yes Figure 1 A schematic diagram of the three-dimensional structure of the first disassembly component and the second disassembly component;

[0047] Figure 7 yes Figure 1 A schematic diagram of the three-dimensional structure of the middle base from the first perspective;

[0048] Figure 8 yes Figure 1 A schematic diagram of the three-dimensional structure of the middle base from a second viewing angle;

[0049] Fig. 9 yes Figure 1 A schematic diagram of the three-dimensional structure of the second disassembly and assembly part;

[0050] Fig.10 yes Figure 1 A schematic diagram of the three-dimensional structure of the second latch;

[0051] Fig.11 It is a schematic diagram of the three-dimensional structure of the second sheet material receiving device provided by the present application;

[0052] Fig.12 It is a structural diagram of the coordination between the main conveyor line and the side conveyor line.

[0053] Fig.13 It is a schematic diagram of the three-dimensional structure of the third sheet material receiving device provided by the present application;

[0054] Fig.14 yes Fig.13 Cross-sectional view in CC direction;

[0055] Fig.15 yes Fig.13 The structural diagram of the fourth latch;

[0056] Fig.16 It is a schematic diagram of the three-dimensional structure of the fourth sheet material receiving device provided by the present application;

[0057] Figures 1 to 16 The following reference numerals are included:

[0058] Base 10: second mounting hole 100, third mounting hole 101, fourth mounting hole 102, air guide channel 11, first through hole 110, second through hole 111, exhaust end 12, support surface 13, raised portion 14, arc transition section 140, straight section 141, first chamber 15, second chamber 16;

[0059] First disassembly member 20, third plane 200;

[0060] Second disassembly component 30: first latch 31, third chamber 310, first channel 311, first vertical section 3110, first horizontal section 3111, second vertical section 3112, second channel 312, fourth channel 313, first mounting hole 314, first plane 315, second latch 32, third channel 320, second horizontal section 3200, third vertical section 3201, second plane 321, boss 322, third horizontal section 330, fourth vertical section 331, fifth vertical section 332;

[0061] A first locking member 40, a second locking member 41, and a third locking member 42;

[0062] Pipe connector 50. DETAILED DESCRIPTION

[0063] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0064] During the processing of battery cells, it is necessary to use an adsorption conveying device to convey the wafers (such as silicon wafers or battery cells). The adsorption conveying device usually includes at least two conveyor belts arranged side by side and at least one pair of adsorption devices. The two adsorption devices in each pair correspond to the two outermost conveyor belts respectively. The adsorption device blows air to one or both sides of the conveyor belt to form a Bernoulli negative pressure to adsorb the wafer, so that the wafer is attached to the conveyor belt for transportation.

[0065] At present, the blowing directions of the two adsorption devices in each existing pair are opposite, that is, they are both facing the inside of the conveyor belt. This method makes the airflow direction at the gas intersection chaotic, affecting the adsorption effect of the sheet. Alternatively, the two adsorption devices in each pair of adsorption devices have opposite blowing directions, that is, they are both facing the outside of the conveyor belt. This method requires reserving a blowing space on the outside of the conveyor belt, which occupies a large space. Moreover, if multiple adsorption conveying devices are used side by side, the adsorption device in each adsorption conveying device will blow air outwards to the sheet on the side adsorption conveying device, so that the conveying of the sheet on the side adsorption conveying device is affected, and there is a risk of the sheet falling.

[0066] Therefore, the present application proposes a sheet adsorption device in various embodiments, and the sheet adsorption devices in various embodiments are described in detail below:

[0067] See also Figure 1 and Figure 2 As shown, the first sheet adsorption device proposed in the present application includes a base 10, and at least one air guide channel 11 is arranged on the adsorption surface B of the base 10, wherein: an air blowing channel is arranged in the base 10, and the air inlet end of the air blowing channel is connected to the air blowing device (not shown in the figure), the air blowing device can select an air compressor, and the exhaust end 12 of the air blowing channel is located in each air guide channel 11; the air blowing device supplies compressed air into the air blowing channel, and the air guide channel 11 is configured to guide the high-speed gas discharged from the exhaust end 12 of the air blowing channel to travel along the air guide channel 11, so as to form an adsorption area based on the Bernoulli negative pressure effect extending along the air guide channel 11 on the adsorption surface B of the base 10.

[0068] It can be seen that the sheet adsorption device proposed in the present application is provided with an air guide channel 11 on the adsorption surface B of the base 10. When the sheet is adsorbed, the high-speed gas provided by the blowing device travels along the air guide channel 11, and then forms an adsorption area based on the Bernoulli negative pressure effect extending along the air guide channel 11 on the adsorption surface B of the base 10, so that the gas flow directions between the air guide channels 11 in the sheet adsorption device or between the air guide channels 11 of adjacent sheet adsorption devices will not affect each other, and thus will not affect the adsorption effect of the sheet adsorption device, and there is no need to reserve air blowing space. The air guide channel 11 can be one or more, as long as the adsorption force generated at the air guide channel 11 can meet the needs.

[0069] See also Figure 2 and Figure 3 As shown, as an embodiment, the air guide channel 11 is a strip groove with open ends, and the exhaust end 12 of the air blowing channel is located in the groove of each air guide channel 11. The high-speed gas discharged from the exhaust end 12 of the air blowing channel is discharged toward any one of the ports of the strip groove, or the high-speed gas discharged from the exhaust end 12 of the air blowing channel is discharged toward both ports of the strip groove at the same time.

[0070] Alternatively, the air guide channel 11 is a strip groove with one end open, the exhaust end 12 of the air blowing channel is located in the groove of each air guide channel 11, and the high-speed gas discharged from the exhaust end 12 of the air blowing channel is discharged toward the open end of the strip groove.

[0071] It can be seen that by setting the air guide channel 11 as a strip groove with open ends, and setting the high-speed gas discharged from the exhaust end 12 of the blowing channel to be discharged toward any one port of the strip groove or toward both ports of the strip groove at the same time, or setting the air guide channel 11 as a strip groove with open end, and setting the high-speed gas discharged from the exhaust end 12 of the blowing channel to be discharged toward the open end of the strip groove, a simple-structured air guide channel 11 is provided, which is easy to process, and a strip-shaped adsorption area is formed on the adsorption surface B of the base 10, thereby improving the adsorption effect.

[0072] When the air guide channel 11 is a strip groove with open ends, and the high-speed gas discharged from the exhaust end 12 of the air blowing channel is discharged toward any one of the ports of the strip groove, for example, the high-speed gas discharged from the exhaust end 12 is discharged toward the first port of the strip groove, the exhaust end 12 needs to be arranged in the strip groove near the second port to ensure that most areas in the strip groove are blown by high-speed gas, thereby ensuring that most areas of the strip groove can form an adsorption area based on the Bernoulli principle to ensure the adsorption effect of the entire sheet adsorption device.

[0073] Similarly, when the high-speed gas discharged from the exhaust end 12 is discharged toward the second port of the strip groove, the exhaust end 12 needs to be arranged in the strip groove near the first port to ensure that the high-speed gas blows through most of the area in the strip groove, thereby ensuring the adsorption effect of the entire sheet adsorption device. However, the high-speed gas is only blown in one direction, and the path of the high-speed gas in the strip groove is relatively long. When the high-speed gas reaches the end of the path, the flow rate of the high-speed gas may decrease, and the corresponding adsorption effect will be weakened.

[0074] Preferably, the high-speed gas discharged from the exhaust end 12 of the blowing channel is discharged toward the two ports of the strip groove at the same time. In this case, the path length of the high-speed gas toward each port will be relatively reduced, and the high-speed gas will maintain a relatively high flow rate even when it reaches the end of the path, so that the high-speed gas maintains a good adsorption effect throughout the entire path it flows through in the air guide channel 11.

[0075] As an embodiment, two air-guiding channels 11 are arranged in parallel on the adsorption surface B of the base 10, and a support surface 13 is formed between the two air-guiding channels 11 on the base 10, and the support surface 13 is configured to support a conveyor belt (not shown in the figure), and the length direction of the air-guiding channel 11 is parallel to the conveying direction of the conveyor belt, and the adsorption force formed at the adsorption area is configured to adsorb the sheet transported on the conveyor belt. Among them, the notch end faces of the two air-guiding channels 11 are on the same plane, and the notch end faces of the air-guiding channels 11 are the adsorption surface B, and the adsorption surface B is parallel to the groove bottom surface of the air-guiding channel 11.

[0076] It can be seen that by arranging two air guide channels 11 in parallel on the adsorption surface B of the base 10 , a support surface 13 for supporting the conveyor belt is formed on the base 10 between the two air guide channels 11 , so that the sheet adsorption device can cooperate with the conveyor belt to transport the sheet.

[0077] In the production process of battery cells, the sheet adsorption device can be used in conjunction with the conveyor belt to adsorb and transport sheet objects such as silicon wafers and battery cells.

[0078] Taking silicon wafers as an example, in some scenarios, the original conveying direction of silicon wafers needs to be changed, such as Fig.12 As shown, the silicon wafer 22 is transported on the transversely arranged main conveyor line 60, and the silicon wafer 22 needs to be switched to the side conveyor line 70 located above the main conveyor line and arranged longitudinally. The sheet adsorption device of the present application can be used on the side conveyor line in this scenario. Specifically, the side conveyor line includes two rows of conveyor belts and at least one pair of sheet adsorption devices 71. The two sheet adsorption devices 71 in each pair respectively correspond to the two rows of conveyor belts one by one. If the length of the conveyor belt at the conveying path is similar to the length of the sheet adsorption device 71, a pair of sheet adsorption devices 71 can be used. If the length of the conveyor belt at the conveying path is longer than the length of the sheet adsorption device 71, multiple pairs of sheet adsorption devices 71 can be used. Fig.12 is a schematic diagram of using multiple pairs of sheet adsorption devices 71, where two pairs of sheet adsorption devices 71 that are opposite to each other and that cooperate with two rows of conveyor belts constitute a pair. Fig.12 The two sheet adsorption devices 71 with labels on the far right are a pair, and multiple pairs of sheet adsorption devices 71 are arranged at intervals along the conveying direction of the conveyor belt. Each row of the conveyor belt is equipped with multiple sheet adsorption devices 71 to ensure that the conveying path of the conveyor belt has adsorption function.

[0079] When the sheet adsorption device 71 is arranged, the length direction of the air guide channel 11 in the sheet adsorption device 71 is parallel to the conveying direction of the conveyor belt, and the height of the adsorption surface B in each sheet adsorption device 71 is higher than the lower conveying surface of the corresponding conveyor belt. When the silicon wafer 22 on the main conveyor line 60 needs to be conveyed laterally, the blowing device is started, and the adsorption surface B of the sheet adsorption device 71 forms an adsorption force to suck up the silicon wafer 22 on the main conveyor line 60, and make the silicon wafer 22 close to the conveying surface of the conveyor belt. The silicon wafer 22 and the base 10 in the sheet adsorption device 71 have no contact. During the rotation of the conveyor belt, the silicon wafer 22 on it will be conveyed laterally. In this process, since the length direction of the air guide channel 11 is parallel to the conveying direction of the conveyor belt, the high-pressure gas in the air guide channel 11 is blown toward the two ports instead of being blown toward the inner side of the conveyor belt. The gas flow directions between the air guide channels 11 of each pair of sheet adsorption devices 71 will not affect each other, and thus will not affect the adsorption effect of the sheet adsorption device 71.

[0080] In order to enable the side conveyor line 70 to transport silicon wafers 22 to both sides of the main conveyor line 60 respectively, each row of conveyor belts in the side conveyor line 70 may include a first side conveyor belt 72, a middle conveyor belt 73 and a second side conveyor belt 74 that are connected in sequence, and the first side conveyor belt 72, the middle conveyor belt 73 and the second side conveyor belt 74 are all equipped with a sheet adsorption device 71, the middle conveyor belt 73 is arranged above the main conveyor line 60, the first side conveyor belt 72 is arranged on the first side of the main conveyor line 60, and the second side conveyor belt 74 is arranged on the second side of the main conveyor line 60. The middle conveyor belt 73 in the two rows of conveyor belts and the matched sheet adsorption device 71 can suck up the silicon wafers 22 on the main conveyor line 60 and transfer them to the first side conveyor belt 72, or transfer them to the second side conveyor belt 74.

[0081] In order to avoid the influence of the gas between adjacent sheet adsorption devices 71, the flow direction of the high-speed gas in the sheet adsorption device 71 coordinated with the first side conveyor belt 72 is unidirectional, and the flow direction of the high-speed gas in the sheet adsorption device 71 coordinated with the first side conveyor belt 72 is consistent with the conveying direction of the first side conveyor belt 72, so as to prevent the high-speed gas from blowing up the silicon wafer 22 on the first side conveyor belt 72 and separating from the first side conveyor belt 72. The flow direction of the high-speed gas in the sheet adsorption device 71 coordinated with the second side conveyor belt 74 is also unidirectional, and the flow direction of the high-speed gas in the sheet adsorption device 71 coordinated with the second side conveyor belt 74 is consistent with the conveying direction of the second side conveyor belt 74, which can also prevent the high-speed gas from blowing up the silicon wafer 22 on the second side conveyor belt 74 and separating from the second side conveyor belt 74.

[0082] The flow direction of high-speed gas in the sheet adsorption device 71 coordinated with the intermediate conveyor belt 73 is bidirectional, blowing toward the first side and the second side of the main conveyor line 60 respectively. It will not blow toward the silicon wafer 22 on the main conveyor line 60 that is about to approach the intermediate conveyor belt 73, and will not affect the transmission of the silicon wafer 22 on the main conveyor line.

[0083] A support surface 13 is formed between the two air guide channels 11 in the sheet adsorption device, and the support surface 13 is configured to support the conveyor belt. Figure 2 As shown, the supporting surface 13 is the bottom surface of the rectangular groove, and the edges of one side / both sides of the conveyor belt are against the groove walls of one side / both sides of the rectangular groove, or the edges of the two sides of the conveyor belt and the groove walls of the two sides of the rectangular groove are arranged with gaps, that is, the groove walls of the two sides of the rectangular groove limit the operation of the conveyor belt to avoid the conveyor belt from deflecting to both sides during operation, thereby ensuring the smooth operation of the conveyor belt. At the same time, it can also prevent the conveyor belt from covering the air guide channel 11 due to deflection, thereby preventing the adsorption effect from being affected.

[0084] In addition, the thickness of the conveyor belt is greater than the depth of the rectangular groove, so that when the silicon wafer 22 is adsorbed on the surface of the conveyor belt, the silicon wafer 22 and the base 10 are not in contact, so that there is no friction between the silicon wafer 22 and the base 10 during the movement of the silicon wafer 22. The two air guide channels 11 in each sheet adsorption device form two adsorption areas on both sides perpendicular to the conveying direction of the conveyor belt to adsorb the sheet on the conveyor belt toward the conveying surface of the conveyor belt, thereby increasing the friction between the sheet and the conveyor belt, avoiding slipping or shaking of the sheet during the conveying process, and greatly improving the stability and efficiency of the conveyor belt in conveying the sheet.

[0085] When used specifically, the sheet adsorption device can be used in conjunction with a conveyor belt, or can be used alone as a suction cup. When used alone as a suction cup, the object sucked up is directly attached to the base 10. When the sheet adsorption device is used in conjunction with a conveyor belt, the conveyor belt can be operated close to the top of the sheet adsorption device, and the sheet is placed on the upper surface of the conveyor belt for transportation. The sheet does not contact the base 10 to avoid affecting the transportation of the sheet. During the transportation process, the sheet runs more smoothly due to the adsorption of the sheet adsorption device; or the conveyor belt can be operated close to the bottom of the sheet adsorption device, so that the sheet is adsorbed on the lower surface of the conveyor belt by using the sheet adsorption device. The sheet does not contact the base 10, and the conveyor belt drives the sheet to move when it runs.

[0086] As an embodiment, at least one protrusion 14 is provided on the traveling path of the high-speed gas in the gas guide channel 11, and the high-speed gas in the gas guide channel 11 bypasses the protrusion 14 so that the high-speed gas in the gas guide channel 11 is close to the adsorption surface B of the base 10 when at the protrusion 14.

[0087] Preferably, two protrusions 14 are provided on the traveling path of the high-speed gas in the air guide channel 11 , and the two protrusions 14 are respectively located on both sides of the exhaust end 12 of the air blowing channel.

[0088] It can be seen that by providing at least one protrusion 14 in the gas guide channel 11, the high-speed gas passing through the protrusion 14 moves closer to the adsorption surface B of the base 10, thereby improving the adsorption effect of the sheet adsorption device.

[0089] See also Figure 2 , Figures 4 to 8 As shown, as an embodiment, at least one first chamber 15 is defined in the base 10, a first disassembly component 20 is detachably fixed in each first chamber 15, a first through hole 110 communicating with the first chamber 15 is defined in the air guide channel 11, a portion of the first disassembly component 20 extends out of the first through hole 110 to form a protrusion 14 in the air guide channel 11.

[0090] It can be seen that the protrusion 14 is formed in the air guide channel 11 through the cooperation of the first disassembly component 20, the first chamber 15 and the first through hole 110; at the same time, the first disassembly component 20 and the base 10 are a split structure, which is convenient for processing, maintenance and repair, and reduces processing costs and use costs.

[0091] As an implementation manner, the first disassembly component 20 is a third latch pin, and a portion of the outer peripheral surface of the third latch pin protrudes from the first through hole 110 to form an arc-shaped protrusion 14 .

[0092] Specifically, the first chamber 15 is a cylindrical chamber with open ends. The length direction of the first chamber 15 is perpendicular to the length directions of the two air guide channels 11. The third pin is tightly inserted in the first chamber 15 to avoid air leakage. The two air guide channels 11 both have first through holes 110 connected to the first chamber 15. The first through holes 110 are long strip holes. The width of the first through holes 110 is consistent with the width of the air guide channels 11. The length direction of the first through holes 110 extends along the length direction of the air guide channels 11, so that the third pin protrudes from the first through holes 110 to form an arc-shaped protrusion 14. When the high-speed gas passes through the protrusion 14, it will travel along the arc-shaped surface of the protrusion 14 and will not rush out of the air guide channel 11. After the high-speed gas bypasses the protrusion 14, it will travel along the bottom surface of the air guide channel 11 until it rushes out from the port of the air guide channel 11.

[0093] In addition, to facilitate locking and fixing, a third plane 200 can be cut on the outer peripheral surface of the first disassembly component 20, and a fourth mounting hole 102 connected to the first chamber 15 is opened on the base 10. The fourth mounting hole 102 is equipped with a third locking component 42. The third locking component 42 is installed in the fourth mounting hole 102 and tightened on the third plane 200 of the first disassembly component 20 to fix the first disassembly component 20 in the first chamber 15.

[0094] Specifically, the third locking member 42 is a locking screw, and the fourth mounting hole 102 is a threaded hole, so that the installation and removal of the third latch are relatively convenient.

[0095] It can be seen that by setting the first disassembly component 20 as the third latch, a first disassembly component 20 with a simple structure and easy processing is provided; at the same time, the third latch cooperates with the first through hole 110 to form an arc-shaped protrusion 14, which is beneficial to the flow of high-speed gas through the protrusion 14 to ensure the adsorption effect.

[0096] As an implementation manner, the highest position of the protrusion 14 is located in the air guiding channel 11 , that is, the protrusion 14 is limited between the bottom surface of the air guiding channel 11 and the adsorption surface B.

[0097] It can be seen that by setting the highest position of the protrusion 14 in the air guide channel 11, when the sheet is adsorbed, the high-speed gas is prevented from being led out of the air guide channel 11 by the protrusion 14, thereby ensuring the adsorption effect.

[0098] As an embodiment, a second chamber 16 is opened in the base 10, a second disassembly component 30 is detachably fixed in the second chamber 16, an air blowing channel is opened on the second disassembly component 30, a second through hole 111 connected to the second chamber 16 is opened in the air guide channel 11, a part of the second disassembly component 30 protrudes from the second through hole 111, and the exhaust end 12 of the air blowing channel is located at the part of the second disassembly component 30 protruding from the second through hole 111, so that the high-speed gas in the blowing channel can be discharged into each air guide channel 11.

[0099] It can be seen that through the cooperation of the second disassembly component 30, the second chamber 16 and the second through hole 111, compressed air can be supplied to each air guide channel 11; at the same time, the second disassembly component 30 and the base 10 adopt a split structural design, which is convenient for processing, maintenance and overhaul, and reduces processing costs and use costs.

[0100] See also Figures 5 to 9As shown, as an embodiment, the second disassembly member 30 includes a first latch 31 and a second latch 32, the first latch 31 is detachably fixed in the second chamber 16, a third chamber 310 is provided on the first latch 31, the second latch 32 is detachably fixed in the third chamber 310, the second chamber 16 is a cylindrical chamber with both ends open, the first latch 31 is tightly inserted in the second chamber 16 to avoid air leakage, the third chamber 310 is also a cylindrical chamber with both ends open, the second latch 32 is tightly inserted in the third chamber 310 to avoid air leakage. The length directions of the second chamber 16 and the third chamber 310 are both perpendicular to the length direction of the air guide channel 11.

[0101] The blowing channel includes a first channel 311, a second channel 312 and a third channel 320. The first channel 311 and the second channel 312 are opened on the first pin 31 and are connected to the third chamber 310. The third channel 320 is opened on the second pin 32 and is connected to the third chamber 310. The air inlet end of the first channel 311 is connected to the blowing device, and the exhaust end of the first channel 311 is connected to the air inlet end of the third channel 320 through the third chamber 310. The exhaust end of the third channel 320 is connected to the air inlet end of the second channel 312. The exhaust end of the second channel 312 serves as the exhaust end 12 of the blowing channel and is located in each air guide channel 11.

[0102] It can be seen that, through the cooperation of the first latch 31, the second latch 32 and the third chamber 310, a second disassembly component 30 with a split structure is provided, which is easy to process, install and disassemble; and at the same time, it can reduce the manufacturing cost and the use cost.

[0103] As an implementation manner, a fourth channel 313 communicating with the third chamber 310 is formed on the outer circumferential surface of the first latch 31 , and the fourth channel 313 is connected with the second channel 312 .

[0104] It can be seen that by providing the fourth channel 313 on the outer peripheral surface of the first latch 31 , the second channel 312 can be easily processed, thereby reducing the processing cost.

[0105] As an embodiment, there are two second channels 312, and both second channels 312 are strip-shaped holes, and the length directions of the two second channels 312 are parallel to the length direction of the first pin 31. The fourth channel 313 is an arc-shaped hole extending circumferentially along the first pin 31, and both ends of the arc-shaped hole are respectively connected to the two second channels 312. There are two air guide channels 11, and both ends of each second channel 312 extend into the two air guide channels 11 respectively. The two ends of the second channel 312 are exhaust ends 12, and the exhaust directions of the two exhaust ends 12 located in the same air guide channel 11 are opposite.

[0106] The following takes the horizontal arrangement of the second disassembly member 30 as an example to introduce the specific structure of each channel inside the second disassembly member 30. Each channel in the second disassembly member 30 is relatively narrow, and each channel can be processed by wire cutting with molybdenum wire.

[0107] Specifically, there are two first channels 311, and both first channels 311 include a first vertical section 3110, a first horizontal section 3111, and a second vertical section 3112. The first vertical section 3110 can be formed by cutting a molybdenum wire horizontally extending in a first direction from the bottom of the first pin 31 upward, wherein the first direction is perpendicular to the length direction of the first pin 31, the lower end of the first vertical section 3110 serves as the air inlet end of the first channel 311, the upper end of the first vertical section 3110 is connected to the first end of the first horizontal section 3111, and the molybdenum wire is turned from the upper end of the first vertical section 3110 to the lower end of the first horizontal section 3111. The first horizontal section 3111 is cut horizontally, and the second end of the first horizontal section 3111 is connected to the lower end of the second vertical section 3112. The molybdenum wire is cut upward from the second end of the first horizontal section 3111 to form the second vertical section 3112. When the molybdenum wire moves to the upper end of the second vertical section 3112, the molybdenum wire passes through the third chamber 310, that is, an opening is cut out in the middle of the upper end of the second vertical section 3112 by the molybdenum wire, and the upper end of the second vertical section 3112 is connected to the third chamber 310 through the opening. The upper end of the second vertical section 3112 is the exhaust end of the first channel 311.

[0108] There are two third channels 320, each of which corresponds to one first channel 311. Both third channels 320 are L-shaped structures. Both third channels 320 include a second horizontal section 3200 and a third vertical section 3201. The molybdenum wire extending horizontally and in the first direction is cut at the lower part of the outer peripheral surface of the second latch 32 to form a groove-shaped second horizontal section 3200. The bottom surface of the groove of the second horizontal section 3200 is a horizontal surface, and the notch of the second horizontal section 3200 faces the inner wall of the third chamber 310, that is, the third chamber 310 is formed. The second horizontal section 3200 is now connected to the third chamber 310, the first end of the second horizontal section 3200 is connected to the upper end of the second vertical section 3112 through the third chamber 310, the second end of the second horizontal section 3200 is connected to the lower end of the third vertical section 3201, the molybdenum wire is cut upward from the second end of the second horizontal section 3200 to the inside of the second pin 32 to form the third vertical section 3201, and the upper end of the third vertical section 3201 is connected to the two exhaust ends 12 at the same end of the two second channels 312.

[0109] It should be noted that the fourth channel 313 and the second channel 312 are opened in order to process the exhaust end 12. Both ends of each second channel 312 are exhaust ends 12, so that the gas exhausted from the upper end of the third vertical section 3201 is discharged into the gas guide channel 11 through the exhaust end 12. The exhaust end 12 is very narrow and needs to be processed by wire cutting. During the specific cutting, a horizontal molybdenum wire extending along the first direction is first placed above the middle of the first pin 31. The molybdenum wire is cut downward until the molybdenum wire passes through the third chamber 310 to cut an arc-shaped hole-shaped fourth channel 313 in the upper part of the third chamber 310, and then the molybdenum wire is horizontally moved toward the two ends of the first pin 31 for cutting to form a second channel 312 on both sides of the third chamber 310.

[0110] The upper end surface of the third vertical section 3201 processed above is flush with the upper end surface of the exhaust end 12. The upper end of the third vertical section 3201 and the exhaust end 12 form a long channel, and the channel is horizontally arranged and extends along a first direction. The first direction is parallel to the length direction of the air guide channel 11, so that the gas discharged from the exhaust end 12 can enter the air guide channel 11 along the first direction to ensure the adsorption effect.

[0111] It can be seen that by setting two second channels 312 and two air guide channels 11, both ends of each second channel 312 are exhaust ends 12, and the exhaust directions of the two exhaust ends 12 located in the same air guide channel 11 are opposite, thereby achieving the formation of two exhaust ends 12 with opposite exhaust directions in each air guide channel 11; the overall structure is simple, and the adsorption effect of the sheet adsorption device is improved.

[0112] In order to ensure that the high-speed gas discharged from the two exhaust ends 12 in each air-guiding channel 11 has a protrusion 14 on the path of travel, two first chambers 15 are provided, and each first chamber 15 is tightly fitted with a third latch, and the two third latches are arranged in parallel on both sides of the first latch 31. The same end of the two third latches forms two protrusions 14 in the corresponding air-guiding channel 11, that is, the high-speed gas discharged from the two exhaust ends 12 in each air-guiding channel 11 has a protrusion 14 on the path of travel, ensuring the adsorption effect. If the air-guiding channel 11 is long, multiple third latches can be provided on both sides of the first latch 31, so that the high-speed gas passes through more third latches during the process of traveling and approaches the adsorption surface B, ensuring the adsorption effect.

[0113] As an embodiment, a partial outer peripheral surface of the first pin 31 protrudes from the second through hole 111 and forms an arc-shaped convex portion in each air guide channel 11, and the two exhaust ends 12 in each air guide channel 11 are respectively arranged at the junction of the two end edges of the convex portion and the bottom surface of the air guide channel 11.

[0114] Similarly, the width of the second through hole 111 is consistent with the width of the air guide channel 11, and the length direction of the second through hole 111 is extended along the length direction of the air guide channel 11, so that the first pin 31 protrudes from the second through hole 111 to form an arc-shaped convex portion. It can be seen that by arranging the two exhaust ends 12 in each air guide channel 11 at the junction of the two end edges of the convex portion and the bottom surface of the air guide channel 11, it is ensured that the high-speed gas discharged from the exhaust end 12 is blown out along the bottom surface of the air guide channel 11, which is beneficial to control the direction of the airflow in the air guide channel 11 and ensure the adsorption effect of the sheet adsorption device.

[0115] See also Figure 1 , Figures 5 to 10 As shown, as an embodiment, a first mounting hole 314 is opened on the first pin 31, and the first mounting hole 314 is connected to the third chamber 310. A first locking member 40 is matched in the first mounting hole 314, and the first locking member 40 is pressed against the outer peripheral surface of the second pin 32 to fix the second pin 32 in the third chamber 310.

[0116] Specifically, the first locking member 40 is a locking screw, the first mounting hole 314 is a threaded hole, the second latch 32 defines a second plane 321 between the two third channels 320 , and the first locking member 40 is pressed against the second plane 321 to ensure the locking effect of the first locking member 40 .

[0117] Specifically, a second plane 321 is cut on the outer peripheral surface of the second pin 32, and bosses 322 are formed at both ends of the second plane 321. The two bosses 322 are tightly attached to the inner wall of the third chamber 310, so that the chamber between the second plane 321 and the inner wall of the third chamber 310 is isolated from the third channel 320, so as to prevent the gas in the two third channels 320 from leaking from the first locking member 40.

[0118] It can be seen that through the cooperation between the first mounting hole 314 and the first locking member 40, the second latch 32 is detachably fixed in the third chamber 310, providing an installation method for the second latch 32 with a simple structure, low cost, and easy disassembly and assembly.

[0119] As an embodiment, at least one second mounting hole 100 is opened on the base 10, and the second mounting hole 100 is connected to the second chamber 16. A second locking member 41 is matched in the second mounting hole 100. The second locking member 41 passes through the second mounting hole 100 and is tightened on the first pin 31 to fix the first pin 31 in the second chamber 16.

[0120] Specifically, the second locking member 41 is a locking screw, and the second mounting hole 100 is a threaded hole.

[0121] It can be seen that, through the cooperation between the second mounting hole 100 and the second locking member 41 , the first latch 31 is detachably fixed in the second chamber 16 , providing a method for installing the first latch 31 with a simple structure, low cost, and easy disassembly.

[0122] As an embodiment, a first plane 315 is provided on the outer peripheral surface of the first pin 31, a first mounting hole 314 is provided at the first plane 315, a third mounting hole 101 is provided on the base 10, a pipe joint 50 is installed at the third mounting hole 101, the pipe joint 50 is connected to the blowing device through a pipeline, an air outlet of the pipe joint 50 is opposite to the first plane 315 and is arranged at a distance, a gap between the air outlet of the pipe joint 50 and the first plane 315 serves as a gas channel, and the gas channel is connected to the first channel 311.

[0123] It can be seen that by opening the first plane 315 on the first pin 31, the first mounting hole 314 is opened on the first plane 315, and the third mounting hole 101 for mounting the pipe joint 50 is opened on the base 10, and a gap serving as a gas channel is formed between the air outlet of the pipe joint 50 and the first plane 315 and the gap is connected to the first channel 311, the compressed air of the blowing device is supplied into the first channel 311.

[0124] In addition, the third mounting hole 101 also plays a role of avoidance. In order to facilitate the disassembly and assembly of the first locking member 40, the hole position of the third mounting hole 101 is opposite to the hole position of the first mounting hole 314 where the first locking member 40 is located, and the inner diameter of the third mounting hole 101 is larger than the inner diameter of the first mounting hole 314. That is, when disassembling and assembling the first locking member 40, the head of the disassembly tool (such as a screwdriver) can pass through the third mounting hole 101 to reach the first mounting hole 314 to disassemble and assemble the first locking member 40.

[0125] In order to make the first latch 31 more securely fixed, two second mounting holes 100 are provided. The two second mounting holes 100 are distributed on both sides of the third mounting hole 101. Each second mounting hole 100 is equipped with a second locking member 41. The first latch 31 is firmly fixed in the second chamber 16 through the two second locking members 41.

[0126] The sheet adsorption device provided by the present application has the following advantages:

[0127] 1) The gas flow directions between the air guide channels in the sheet adsorption device or between the air guide channels of adjacent sheet adsorption devices will not affect each other, thereby not affecting the adsorption effect of the sheet adsorption device, and no blowing space needs to be reserved, so the space occupied is small.

[0128] 2) The air guide channel is set as a strip groove, and the high-speed gas discharged from the exhaust end of the blowing channel is discharged simultaneously toward the two ports of the strip groove, forming a strip-shaped adsorption area on the adsorption surface B of the base, thereby improving the adsorption effect.

[0129] 3) A protrusion is provided in the gas guide channel, so that the high-speed gas passing through the protrusion is closer to the adsorption surface B of the base, further improving the adsorption effect.

[0130] 4) The raised part, the air blowing channel and the base are all designed as split structures, which are convenient for processing, maintenance and repair, and reduce processing costs and use costs.

[0131] 5) The first latch, the second latch and the third latch are all fixed by side-tightening with locking screws, which has a simple structure, is easy to assemble and disassemble, and has low cost.

[0132] See also Fig.11 , Fig.11 This is a structural diagram of the second sheet adsorption device proposed in the present application. The main difference between the second sheet adsorption device and the first sheet adsorption device is that in the second sheet adsorption device, the protrusion 14 and the base 10 are an integrated structure, and the protrusion 14 is a raised ramp arranged on the bottom surface of the air guide channel 11. The ramp constitutes the protrusion 14. When the high-speed gas travels to the ramp, it travels along the ramp to get closer to the adsorption surface B of the base 10. The other structures are the same as the first sheet adsorption device and will not be repeated here.

[0133] Specifically, there are two raised ramps in the second sheet adsorption device, and the two raised ramps are respectively located on both sides of the exhaust end 12 of the blowing channel. The raised ramps include an arc transition section 140 and a straight section 141. The arc transition section 140 is arranged closer to the exhaust end 12 of the blowing channel than the straight section 141, so that the gas blown out of the exhaust end 12 can be guided to the straight section 141 by using the arc transition section 140.

[0134] It can be seen that by providing a raised ramp on the bottom surface of the air guide channel 11, a raised portion 14 is formed in the air guide channel 11; at the same time, the ramp and the base 10 are an integrated structure, which is simple in structure and easy to implement.

[0135] See also Fig.13 , Fig.13 The third sheet adsorption device proposed in this application is mainly different from the first sheet adsorption device in that the second disassembly component 30 in the third sheet adsorption device is composed of a latch, which is marked as a fourth latch for the convenience of description. The fourth latch is provided with a blowing channel to Fig.15Taking the position of the fourth plug in the middle as an example, the structure of the blowing channel in the fourth plug is described. The blowing channel includes a third horizontal section 330, a fourth vertical section 331 and a fifth vertical section 332. The molybdenum wire horizontally extending along the second direction is cut at the lower part of the outer peripheral surface of the fourth plug to form a groove-shaped third horizontal section 330. The second direction is a direction perpendicular to the length direction of the fourth plug. The bottom surface of the groove of the third horizontal section 330 is a horizontal plane. The notch of the third horizontal section 330 faces the inner wall of the second chamber 16. The molybdenum wire is cut upward from the left end of the third horizontal section 330 to form a fourth vertical section 332. 31, the molybdenum wire is cut upward from the right end of the third horizontal section 330 to form the fifth vertical section 332, and the upper ends of the fourth vertical section 331 and the fifth vertical section 332 are closed and do not penetrate the fourth pin, and the upper edges of the fourth vertical section 331 protrude into one of the air guide channels 11, and the upper edges of the fourth vertical section 331 constitute two exhaust ends 12 with opposite exhaust directions located in one of the air guide channels 11, and similarly, the upper edges of the fifth vertical section 332 constitute two exhaust ends 12 with opposite exhaust directions located in another air guide channel 11. The gas outlet of the pipe joint 50 is opposite to the bottom surface of the groove of the third horizontal section 330 and is arranged at a distance, so that the gas discharged from the pipe joint 50 can enter the fourth vertical section 331 and the fifth vertical section 332 through the third horizontal section 330 and be discharged into the air guide channel 11.

[0136] See also Fig.16 , Fig.16 This is a structural diagram of the fourth sheet adsorption device proposed in this application. The main difference between the fourth sheet adsorption device and the first sheet adsorption device is that the first disassembly part 20 of the base 10 in the fourth sheet adsorption device is one, and the second disassembly part 30 is also composed of a latch. For the convenience of description, the latch is marked as the fifth latch. The two air guide channels 11 are both strip grooves with one end open. The exhaust end 12 of the blowing channel in the fifth latch only needs to be set in each air guide channel 11. The high-speed gas discharged from an exhaust end in each air guide channel 11 is discharged toward the open end of the strip groove. The specific structure of the blowing channel is not described in detail here.

[0137] It should be noted that the specific structure of the blowing channel in the present application is not limited to the above-mentioned structures, as long as the gas blown out of the exhaust end 12 of the cut blowing channel can be discharged toward one end or both ends of the air guide channel 11.

[0138] The above embodiments are only to illustrate the basic principles and characteristics of the present application. The present application is not limited by the above examples. Without departing from the spirit and scope of the present application, the present application may be subject to various changes and modifications, which are within the scope of the present application to be protected. The scope of protection claimed in the present application is defined by the attached claims and their equivalents.

Claims

1. A sheet adsorption device, characterized in that: The sheet adsorption device comprises a base, and at least one air guide channel is arranged on the adsorption surface of the base, wherein: An air blowing channel is provided in the base, an air inlet end of the air blowing channel is connected to the air blowing device, and an air exhaust end of the air blowing channel is located in each of the air guide channels; The air blowing device supplies compressed air into the air blowing channel, and the air guiding channel is configured to guide the high-speed gas discharged from the exhaust end of the air blowing channel to travel along the air guiding channel, so as to form an adsorption area based on the Bernoulli negative pressure effect extending along the air guiding channel on the adsorption surface of the base.

2. The sheet adsorption device according to claim 1, characterized in that: The air guide channel is a strip groove with two open ends, the exhaust end of the air blowing channel is located in the groove of each of the air guide channels, and the high-speed gas discharged from the exhaust end of the air blowing channel is discharged toward any one of the ports of the strip groove, or the high-speed gas discharged from the exhaust end of the air blowing channel is discharged toward both ports of the strip groove at the same time; Alternatively, the air guide channel is a strip groove with one end open, the exhaust end of the air blowing channel is located in the groove of each of the air guide channels, and the high-speed gas discharged from the exhaust end of the air blowing channel is discharged toward the open end of the strip groove.

3. The sheet adsorption device according to claim 1 or 2, characterized in that: Two air guide channels are arranged in parallel on the adsorption surface of the base, and a support surface is formed on the base between the two air guide channels. The support surface is configured to support the conveyor belt. The length direction of the air guide channel is parallel to the conveying direction of the conveyor belt. The adsorption force formed at the adsorption area is configured to adsorb the sheet transported on the conveyor belt.

4. The sheet adsorption device according to claim 1, characterized in that: At least one protrusion is provided on the traveling path of the high-speed gas in the gas guide channel, and the high-speed gas in the gas guide channel bypasses the protrusion to make the high-speed gas in the gas guide channel close to the adsorption surface of the base when at the protrusion.

5. The sheet adsorption device according to claim 4, characterized in that: At least one first chamber is defined in the base, a first disassembly component is detachably fixed in each of the first chambers, a first through hole communicating with the first chamber is defined in the air guide channel, a portion of the first disassembly component extends out of the first through hole to form the protrusion in the air guide channel.

6. The sheet adsorption device according to claim 5, characterized in that: The first disassembly and assembly component is a third latch pin, and a portion of the outer peripheral surface of the third latch pin protrudes from the first through hole to form an arc-shaped protrusion.

7. The sheet adsorption device according to claim 4, characterized in that: A raised ramp is provided on the bottom surface of the air guide channel, and the ramp constitutes the raised portion. When the high-speed gas moves to the ramp, it moves along the ramp to get closer to the adsorption surface of the base.

8. The sheet adsorption device according to claim 4, characterized in that: The highest position of the protrusion is located in the air guiding channel.

9. The sheet adsorption device according to claim 1, characterized in that: A second chamber is provided in the base, a second detachable component is detachably fixed in the second chamber, the blowing channel is provided on the second detachable component, a second through hole communicating with the second chamber is provided in the air guiding channel, a portion of the second detachable component protrudes from the second through hole, and an exhaust end of the blowing channel is located at a portion of the second detachable component protruding from the second through hole, so that the high-speed gas in the blowing channel is discharged into each of the air guiding channels.

10. The sheet adsorption device according to claim 9, characterized in that: The second disassembly and assembly part includes a first latch and a second latch, the first latch is detachably fixed in the second chamber, a third chamber is opened on the first latch, and the second latch is detachably fixed in the third chamber, the blowing channel includes a first channel, a second channel and a third channel, the first channel and the second channel are opened on the first latch and are connected to the third chamber, the third channel is opened on the second latch and is connected to the third chamber, the air inlet end of the first channel is connected to the blowing device, the exhaust end of the first channel is connected to the air inlet end of the third channel through the third chamber, the exhaust end of the third channel is connected to the air inlet end of the second channel, and the exhaust end of the second channel serves as the exhaust end of the blowing channel and is located in each of the air guide channels.

11. The sheet adsorption device according to claim 10, characterized in that: A fourth channel communicating with the third chamber is formed on the outer peripheral surface of the first latch, and the fourth channel is connected with the second channel.

12. The sheet adsorption device according to claim 11, characterized in that: There are two second channels, and both of the two second channels are strip-shaped holes, and the length directions of the two second channels are parallel to the length direction of the first pin. The fourth channel is an arc-shaped hole extending circumferentially along the first pin, and both ends of the arc-shaped hole are respectively connected to the two second channels. There are two air guide channels, and both ends of each of the second channels extend into the two air guide channels respectively. The two ends of the second channel are the exhaust ends, and the exhaust directions of the two exhaust ends in the same air guide channel are opposite.

13. The sheet adsorption device according to claim 12, characterized in that: A partial outer peripheral surface of the first latch protrudes from the second through hole and forms an arc-shaped convex portion in each air guide channel, and two exhaust ends in each air guide channel are respectively arranged at the junction of the two end edges of the convex portion and the bottom surface of the air guide channel.

14. The sheet adsorption device according to claim 10, characterized in that: A first mounting hole is formed on the first latch and communicated with the third chamber. A first locking member is provided in the first mounting hole and is pressed against the outer peripheral surface of the second latch to fix the second latch in the third chamber.

15. The sheet adsorption device according to claim 10, characterized in that: At least one second mounting hole is formed on the base, the second mounting hole is communicated with the second chamber, a second locking member is provided in the second mounting hole, the second locking member passes through the second mounting hole and is tightened on the first latch to fix the first latch in the second chamber.

16. The sheet adsorption device according to claim 14, characterized in that: A first plane is provided on the outer peripheral surface of the first pin, the first mounting hole is provided on the first plane, a third mounting hole is provided on the base, a pipe joint is installed at the third mounting hole, the pipe joint is connected to the blowing device through a pipeline, the air outlet of the pipe joint is opposite to the first plane and arranged at a distance, the gap between the air outlet of the pipe joint and the first plane serves as a gas channel, and the gas channel is connected to the first channel.

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