Air knife driving mechanism and battery piece production system

Abstract

The utility model is applicable to the technical field of solar cell preparation, and provides an air knife driving mechanism and a cell production system.The air knife driving mechanism comprises an air knife assembly, a cam assembly and a driving assembly, and the cam assembly comprises a cam guide rod and a guide sleeve arranged outside the cam guide rod in a sleeving mode; the guide sleeve is fixedly installed on a shell of the driving assembly, the guide sleeve is provided with a limiting groove extending in the axial direction and the circumferential direction of the guide sleeve, the cam guide rod is provided with a limiting protrusion matched with the limiting groove, the air knife assembly is connected with the guide sleeve, and the air knife assembly is provided with an air knife nozzle used for blowing air to a target piece. The driving assembly is connected with the cam guide rod and used for driving the cam guide rod to reciprocate so as to drive the air knife assembly to reciprocate in the axial direction and the circumferential direction of the guide sleeve. The air knife assembly is driven to swing in a reciprocating mode, the structure is simple and reliable, gas output by the air knife nozzle can be aligned with a target piece, and the blowing and slicing effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of solar cell preparation, and particularly relates to an air knife driving mechanism and a solar cell production system. Background Art

[0002] In the preparation process of solar cells, multiple silicon wafers need to be stacked and placed in a cassette for operation in each process. In the corresponding process positions, the silicon wafers need to be taken out one by one for processing. In order to ensure the effective separation of the silicon wafers in the cassette, an air knife is often used to blow air at the stacked silicon wafers to disperse them.

[0003] However, the existing air knife assembly has a fixed position after installation and a single wind direction, resulting in poor silicon wafer separation effect. Summary of the Utility Model

[0004] An embodiment of the utility model provides an air knife driving mechanism, aiming to solve the problem of poor silicon wafer separation effect caused by the single wind direction of the existing air knife driving mechanism.

[0005] The embodiment of the utility model is implemented as follows: an air knife driving mechanism includes an air knife assembly, a cam assembly, and a driving assembly;

[0006] The cam assembly includes a cam guide rod and a guide sleeve sleeved outside the cam guide rod. The guide sleeve is fixedly installed on the housing of the driving assembly. The guide sleeve is provided with a limit groove extending along the axial and circumferential directions of the guide sleeve, and the cam guide rod is provided with a limit protrusion cooperating with the limit groove;

[0007] The air knife assembly is connected to the cam guide rod, and the air knife assembly has an air knife nozzle for blowing gas at a target;

[0008] The driving assembly is connected to the cam guide rod for driving the cam guide rod to reciprocate, thereby driving the air knife assembly to reciprocate along the axial and circumferential directions of the guide sleeve.

[0009] Further, the driving assembly includes a linear cylinder. The linear cylinder includes a cylinder housing and a cylinder piston. The cylinder housing is provided with a cylinder inner cavity, the cylinder piston is arranged in the cylinder inner cavity, and the cylinder piston is connected to the cam guide rod.

[0010] Further, the air knife driving mechanism further includes a reciprocating valve assembly. The reciprocating valve assembly includes a valve body housing, a valve core shaft, a first sealing valve core, and a second sealing valve core;

[0011] A first chamber, a second chamber, and a valve core chamber connecting the first chamber and the second chamber are arranged in the valve body housing. The first chamber is provided with a first air passage, the second chamber is provided with a second air passage, the cylinder piston divides the cylinder inner cavity into a first inner cavity and a second inner cavity, and the first air passage and the second air passage are respectively connected to the first inner cavity and the second inner cavity;

[0012] The spool shaft is movably arranged in the spool chamber. The first sealing spool is arranged on the spool shaft and located in the first chamber, and the second sealing spool is arranged on the spool shaft and located in the second chamber;

[0013] The valve body housing is provided with an air inlet. The spool shaft includes a first state in which a first air passage is communicated with the air inlet, and a second state in which a second air passage is communicated with the air inlet.

[0014] Furthermore, a third chamber, a fourth chamber, a fifth chamber, a sixth chamber, a spool spring, a first overflow device, a second overflow device, a first piston and a second piston are also arranged in the valve body housing;

[0015] The fifth chamber is connected to the first chamber through the third chamber, and the sixth chamber is connected to the second chamber through the fourth chamber;

[0016] The first piston is arranged at the first end of the spool shaft and is in sealing cooperation with the third chamber. The first piston and the third chamber are connected by a spool spring. The second piston is arranged at the second end of the spool shaft and is in sealing cooperation with the fourth chamber;

[0017] The fifth chamber is connected to the first inner cavity through the first overflow device, and the sixth chamber is connected to the second inner cavity through the second overflow device.

[0018] Furthermore, the first overflow device includes a first overflow spool, a first overflow valve spring and a first overflow valve end cap;

[0019] A first overflow chamber is also arranged in the valve body housing. The fifth chamber is connected to the first inner cavity through the first overflow chamber;

[0020] The first overflow spool is arranged in the first overflow chamber;

[0021] The first overflow valve end cap seals the first overflow chamber. A first overflow valve spring is arranged between the first overflow valve end cap and the first overflow spool.

[0022] Furthermore, the second overflow device includes a second overflow spool, a second overflow valve spring, a check valve and a second overflow valve end cap;

[0023] A second overflow chamber is also arranged in the valve body housing. The sixth chamber is connected to the fourth inner cavity through the second overflow chamber;

[0024] The second overflow spool is arranged in the second overflow chamber;

[0025] The second overflow valve end cap seals the second overflow chamber. A second overflow valve spring is arranged between the second overflow valve end cap and the second overflow spool;

[0026] An air flow channel is arranged in the second overflow valve core, and the one-way valve is arranged in the air flow channel.

[0027] Furthermore, the wind knife drive mechanism also includes a guide plate, in which a first guide channel and a second guide channel are arranged, the first air path channel is connected to the first inner cavity through the first guide channel, and the second air path channel is connected to the second inner cavity through the second guide channel.

[0028] Furthermore, the valve body shell is also provided with a first exhaust muffler and a second exhaust muffler, the first exhaust muffler is connected to the third chamber, and the second exhaust muffler is connected to the fourth chamber.

[0029] Furthermore, the wind knife driving mechanism also includes a wind knife bracket, a first end of the wind knife bracket is connected to the cam guide rod, and a second end of the wind knife bracket is connected to the wind knife assembly.

[0030] In a second aspect, the present application provides a battery cell production system, including the wind knife drive mechanism as described above.

[0031] The beneficial effect of the present application is that the wind knife driving mechanism of the present application includes a wind knife assembly, a cam assembly and a driving assembly, the cam assembly includes a cam guide rod and a guide sleeve sleeved outside the cam guide rod, the guide sleeve is fixedly mounted on the housing of the driving assembly, the guide sleeve is provided with a limiting groove extending along the axial direction and circumferential direction of the guide sleeve, the cam guide rod is provided with a limiting protrusion matched with the limiting groove, the wind knife assembly is connected with the guide sleeve, the wind knife assembly has a wind knife nozzle for blowing gas to the target part, the driving assembly is connected with the cam guide rod, and is used to drive the cam guide rod to reciprocate, thereby driving the wind knife assembly to reciprocate along the axial direction and circumferential direction of the guide sleeve. The cam guide rod is driven to move by the driving assembly, and the cam guide rod moves along the axial direction of the guide sleeve under the action of the limiting protrusion and the limiting groove, and rotates along the circumferential direction of the guide sleeve, so that the wind knife assembly can swing back and forth, the structure is simple and reliable, and the gas output by the wind knife nozzle can be aimed at the target part, and the blowing and segmenting effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of an embodiment of the wind knife driving mechanism provided by the present application;

[0033] Figure 2 is a front view schematic diagram of an embodiment of the wind knife driving mechanism provided by the present application;

[0034] Figure 3 yes Figure 2 Schematic cross-sectional view of the middle BB line;

[0035] Figure 4 It is a left side schematic diagram of an embodiment of the wind knife driving mechanism provided by the present application;

[0036] Figure 5 is Figure 4 A sectional view schematic diagram of the C-C line in

[0037] Figure 6 is Figure 4 A sectional view schematic diagram of the D-D line in

[0038] Figure 7 is Figure 6 An enlarged schematic diagram of part E in Detailed implementation manners

[0039] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model. In addition, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0040] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "left", "right", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0042] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection, an electrical connection or may communicate with each other; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0045] The wind knife driving mechanism of the present application includes a wind knife assembly, a cam assembly and a driving assembly. The cam assembly includes a cam guide rod and a guide sleeve sleeved outside the cam guide rod. The guide sleeve is fixedly mounted on the housing of the driving assembly. The guide sleeve is provided with a limiting groove extending along the axial direction and circumferential direction of the guide sleeve. The cam guide rod is provided with a limiting protrusion matched with the limiting groove. The wind knife assembly is connected to the guide sleeve. The wind knife assembly has a wind knife nozzle for blowing gas to the target part. The driving assembly is connected to the cam guide rod and is used to drive the cam guide rod to reciprocate, thereby driving the wind knife assembly to reciprocate along the axial direction and circumferential direction of the guide sleeve. The cam guide rod is driven to move by the driving assembly. Under the action of the limiting protrusion and the limiting groove, the cam guide rod moves along the axial direction of the guide sleeve and rotates along the circumferential direction of the guide sleeve, so that the wind knife assembly can swing back and forth. The structure is simple and reliable, and the gas output by the wind knife nozzle can be aimed at the target part, and the blowing and segmenting effect is good.

[0046] Embodiment 1

[0047] like Figures 1 to 7 As shown, one embodiment of the present application provides a wind knife driving mechanism, including a wind knife assembly 100, a cam assembly 200 and a driving assembly 300;

[0048] The cam assembly 200 includes a cam guide rod 210 and a guiding sleeve 220 sleeved outside the cam guide rod 210. The guiding sleeve 220 is fixedly installed on the housing of the driving assembly 300. The guiding sleeve 220 is provided with a limiting groove 221 extending along the axial and circumferential directions of the guiding sleeve 220, and the cam guide rod 210 is provided with a limiting protrusion 211 cooperating with the limiting groove 221.

[0049] The air knife assembly 100 is connected to the cam guide rod 210, and the air knife assembly 100 has an air knife nozzle 110 for blowing gas to a target part (not shown in the figure).

[0050] The driving assembly 300 is connected to the cam guide rod 210 and is used to drive the cam guide rod 210 to reciprocate, so as to drive the air knife assembly 100 to reciprocate along the axial and circumferential directions of the guiding sleeve 220.

[0051] In implementation, the cam guide rod 210 and the guiding sleeve 220 are provided in a matching manner. Among them, the cam guide rod 210 is integrally in a long strip shape, and the guiding sleeve 220 can be regarded as a housing sleeved outside the cam guide rod 210, and the guiding sleeve 220 is integrally in a hollow tubular structure. The guiding sleeve 220 is provided with a limiting groove 221, and the limiting groove 221 extends along the axial and circumferential directions of the guiding sleeve 220. The limiting protrusion 211 provided on the cam guide rod 210 is embedded into the limiting groove 221 so that the limiting protrusion 211 moves along the limiting groove 221.

[0052] Since the guiding sleeve 220 is fixedly installed on the housing of the driving assembly 300, and at the same time the driving assembly 300 is connected to the cam guide rod 210, the driving assembly 300 can drive the cam guide rod 210 to move. For example, the driving assembly 300 can be a cylinder, and the driving shaft of the cylinder is connected to the cam guide rod 210, so as to drive the cam guide rod 210 to move along the axial direction of the guiding sleeve 220. At the same time, under the action of the limiting protrusion 211 and the limiting groove 221, the cam guide rod 210 will move along the circumferential direction of the guiding sleeve 220.

[0053] Optionally, the driving assembly 300 can also adopt a motor, an oil cylinder, a lead screw assembly or other devices capable of outputting power, which is not limited.

[0054] The air knife assembly 100 is connected to the cam guide rod 210. The air knife assembly 100 has an air knife air inlet 120. When the cam guide rod 210 moves axially and circumferentially along the guide sleeve 220, it will drive the air knife assembly 100 to move synchronously. Exemplarily, taking the axial direction of the guide sleeve 220 as the vertical direction, that is to say, the power output direction of the driving assembly 300 is the vertical direction, so that the cam guide rod 210 can be driven to move up and down, and the cam guide rod 210 can swing left and right, causing the air knife assembly 100 to swing up, down, left and right, and adjusting the position of the air knife nozzle 110, including the height and angle of the air knife nozzle 110, to align with and approach the target part, so that the gas ejected from the air knife nozzle 110 can better purge and fragment the target part.

[0055] The air knife driving mechanism of the present application includes an air knife assembly 100, a cam assembly 200 and a driving assembly 300. The cam assembly 200 includes a cam guide rod 210 and a guide sleeve 220 sleeved outside the cam guide rod 210. The guide sleeve 220 is fixedly installed on the housing of the driving assembly 300. The guide sleeve 220 is provided with a limit groove 221 extending axially and circumferentially along the guide sleeve 220. The cam guide rod 210 is provided with a limit protrusion 211 cooperating with the limit groove 221. The air knife assembly 100 is connected to the guide sleeve 220. The air knife assembly 100 has an air knife nozzle 110 for blowing gas to the target part. The driving assembly 300 is connected to the cam guide rod 210 and is used to drive the cam guide rod 210 to reciprocate, and then drive the air knife assembly 100 to reciprocate axially and circumferentially along the guide sleeve 220. By driving the cam guide rod 210 to move through the driving assembly 300, the cam guide rod 210 moves axially along the guide sleeve 220 under the action of the limit protrusion 211 and the limit groove 221, and rotates circumferentially along the guide sleeve 220, realizing the reciprocating swing of the air knife assembly 100. The structure is simple and reliable, and can make the gas output by the air knife nozzle 110 align with the target part, and the purging and fragmenting effect is good.

[0056] In some alternative embodiments, the driving assembly 300 includes a linear cylinder. The linear cylinder includes a cylinder housing 310 and a cylinder piston 320. The cylinder housing 310 is provided with a cylinder inner cavity. The cylinder piston 320 is arranged in the cylinder inner cavity. The cylinder piston 320 is connected to the cam guide rod 210.

[0057] In implementation, the cylinder piston 320 divides the cylinder inner cavity into two parts, namely the first inner cavity C2 and the second inner cavity C3. The first inner cavity C2 and the second inner cavity C3 are respectively connected to an external air source and can drive the movement of the cylinder piston 320 under the drive of the external air source. For example, when inflating the first inner cavity C2 and evacuating the second inner cavity C3, the first inner cavity C2 becomes larger and the second inner cavity C3 becomes smaller, causing the cylinder piston 320 to move towards the second inner cavity C3. Similarly, when inflating the second inner cavity C3 and evacuating the first inner cavity C2, the second inner cavity C3 becomes larger and the first inner cavity C2 becomes smaller, causing the cylinder piston 320 to move towards the first inner cavity C2. The cylinder piston 320 is connected to the cam guide rod 210, thereby driving the cam guide rod 210 to perform a reciprocating motion.

[0058] In some possible embodiments, the cylinder piston 320 can also be connected to the cam guide rod 210 through a piston rod 340. One end of the piston rod 340 is located in the cylinder inner cavity and is connected to the cylinder piston 320, and the other end of the piston rod 340 extends outside the cylinder housing 310 for connection with the cam guide rod 210, facilitating the assembly of the cam guide rod 210 and the drive assembly 300.

[0059] In some alternative embodiments, the air knife drive mechanism provided in this application further includes a reciprocating valve assembly 400. The reciprocating valve assembly 400 includes a valve body housing 410, a valve core shaft 420, a first sealing valve core 430, and a second sealing valve core 440.

[0060] A first chamber 411, a second chamber 412, and a valve core chamber C1 connecting the first chamber 411 and the second chamber 412 are provided in the valve body housing 410. A first air passage 414 is provided in the first chamber 411, and a second air passage 415 is provided in the second chamber 412. The cylinder piston 320 divides the cylinder inner cavity into the first inner cavity C2 and the second inner cavity C3. The first air passage 414 and the second air passage 415 are respectively connected to the first inner cavity C2 and the second inner cavity C3.

[0061] The valve core shaft 420 is movably arranged in the valve core chamber C1. The first sealing valve core 430 is arranged on the valve core shaft 420 and is located in the first chamber 411, and the second sealing valve core 440 is arranged on the valve core shaft 420 and is located in the second chamber 412.

[0062] The valve body housing 410 is provided with an air inlet 416. The valve core shaft 420 includes a first state in which the first air passage 414 communicates with the air inlet 416, and a second state in which the second air passage 415 communicates with the air inlet 416.

[0063] The air inlet 416 is used to connect with an external air source. The channel node between the air inlet 416 and the spool chamber C1 is a. When the spool shaft 420 is in the first state, the first air passage 414 is in communication with the air inlet 416. At this time, the second air passage 415 and the air inlet 416 are not in communication. Thus, the gas from the air inlet 416 is transported to the first inner cavity C2 through the first air passage 414. Similarly, when the spool shaft 420 is in the second state, the second air passage 415 is in communication with the air inlet 416. At this time, the first air passage 414 and the air inlet 416 are not in communication. Thus, the gas from the air inlet 416 is transported to the second inner cavity C3 through the second air passage 415, thereby realizing the reciprocating movement of the cylinder piston 320.

[0064] Furthermore, a third chamber 451, a fourth chamber C4, a fifth chamber C5, a sixth chamber C6, a spool spring 455, a first overflow device 460, a second overflow device 470, a first piston 456, and a second piston 457 are also provided inside the valve body housing 410;

[0065] The fifth chamber C5 is connected to the first chamber 411 through the third chamber 451, and the sixth chamber C6 is connected to the second chamber 412 through the fourth chamber C4;

[0066] The first piston 456 is arranged at the first end of the spool shaft 420 and is in sealing cooperation with the third chamber 451. A spool spring 455 is provided between the first piston 456 and the third chamber 451. The second piston 457 is arranged at the second end of the spool shaft 420 and is in sealing cooperation with the fourth chamber C4;

[0067] The fifth chamber C5 is connected to the first inner cavity C2 through the first overflow device 460, and the sixth chamber C6 is connected to the second inner cavity C3 through the second overflow device 470.

[0068] During implementation, the first overflow device 460 includes a first overflow spool 461, a first overflow valve spring 462, and a first overflow valve end cap 463;

[0069] A first overflow chamber 417 is also provided inside the valve body housing 410. The fifth chamber C5 is connected to the first inner cavity C2 through the first overflow chamber 417;

[0070] The first overflow spool 461 is arranged inside the first overflow chamber 417;

[0071] The first overflow valve end cap 463 seals the first overflow chamber 417. A first overflow valve spring 462 is provided between the first overflow valve end cap 463 and the first overflow spool 461.

[0072] Furthermore, the second overflow device 470 includes a second overflow spool 471, a second overflow valve spring 472, a check valve 473, and a second overflow valve end cap 474;

[0073] A second overflow chamber 418 is also provided inside the valve body housing 410, and the sixth chamber C6 is connected to the fourth inner cavity through the second overflow chamber 418;

[0074] The second overflow valve spool 471 is arranged inside the second overflow chamber 418;

[0075] The second overflow valve end cover 474 seals the second overflow chamber 418, and a second overflow valve spring 472 is arranged between the second overflow valve end cover 474 and the second overflow valve spool 471;

[0076] An air flow channel is arranged inside the second overflow valve spool 471, and a check valve 473 is arranged inside the air flow channel.

[0077] Further, the air knife driving mechanism provided by the present application further includes a deflector 600. A first diversion channel and a second diversion channel are arranged inside the deflector 600. The first air path channel 414 is connected to the first inner cavity C2 through the first diversion channel, and the second air path channel 415 is connected to the second inner cavity C3 through the second diversion channel.

[0078] During implementation, the channel air path of the first air path channel 414 is b, the channel air path of the first diversion channel includes air paths c and d, an air path e is provided inside the cylinder housing 310, and the connection of the first air path channel 414 to the first inner cavity C2 through the first diversion channel can be regarded as the connection of air paths b, c, d, and e to the first inner cavity C2. The channel air path of the second air path channel 415 is i, the channel air path of the second diversion channel includes air paths h and g, an air path f is provided inside the cylinder housing 310, and the connection of the second air path channel 415 to the second inner cavity C3 through the second diversion channel can be regarded as the connection of air paths i, h, g, and f to the second inner cavity C3.

[0079] Further, the valve body housing 410 is further provided with a first exhaust silencer 480 and a second exhaust silencer 490. The first exhaust silencer 480 is connected to the third chamber 451, and the second exhaust silencer 490 is connected to the fourth chamber C4.

[0080] The working principle of the air knife driving mechanism provided by the present application is as follows:

[0081] In the initial state, the spool shaft 420 is in the position as shown under the action of the spool spring 455, that is, the spool shaft 420 moves leftward under the action of the spool spring 455. At this time, the first sealing valve spool 430 blocks the channel between the first chamber 411 and the third chamber 451, and the second sealing valve spool 440 blocks the right end of the spool chamber C1; Figure 3 As shown, that is, the spool shaft 420 moves leftward under the action of the spool spring 455. At this time, the first sealing valve spool 430 blocks the channel between the first chamber 411 and the third chamber 451, and the second sealing valve spool 440 blocks the right end of the spool chamber C1;

[0082] The air inlet 416 admits compressed gas. The gas enters the chamber C1 through the gas path a, then enters the gas path b through the valve core chamber C1 and the first chamber 411, and passes through the diversion gas path c and the gas path d, and enters the first inner cavity C2 of the linear cylinder through the gas path e. The cylinder piston 320 starts to move rightward under the action of the compressed air. The gas in the second inner cavity C3 enters the gas path i through the gas path f, the diversion gas path g, and the gas path h, then enters the fourth chamber C4 through the second chamber 412, and is discharged by the second exhaust muffler 490 through the gas path j;

[0083] When the cylinder piston 320 moves to the end of the stroke, the pressure in the first inner cavity C2 rises until it pushes the first overflow valve core 461. The gas enters the fifth chamber C5 through the gas path k. As the pressure rises, it pushes the valve core shaft 420 to move rightward, so that the first sealing valve core 430 blocks the left end of the valve core chamber C1, and at the same time the second sealing valve core 440 blocks the passage between the second chamber 412 and the fourth chamber C4, that is, the gas path between the valve core chamber C1 and the gas path b is cut off. The gas then enters the second inner cavity C3 through the gas path i, the gas path h, the gas path g, and the gas path f. The cylinder piston 320 starts to move leftward under the action of the compressed air. At the same time, the gas in the sixth chamber C6 enters the upper chamber C7 of the second overflow valve core 471 through the gas path l, pushes the valve core of the one-way valve 473 through the gas path m, enters the gas path i through the gas path n, and finally enters the second inner cavity C3, as Figure 3 、 Figure 5 、 Figure 6 and Figure 7 shown;

[0084] Repeating the above steps can control the cylinder to perform reciprocating telescopic movements, and the air knife assembly 100 can perform reciprocating movements from top to bottom and from left to right through the cam assembly 200.

[0085] In some possible embodiments, by controlling the opening sizes of the first exhaust muffler 480 and the second exhaust muffler 490, the movement speed of the cylinder can be changed, thereby controlling the reciprocating blowing frequency of the air knife.

[0086] In some possible embodiments, the air knife driving mechanism provided in the present application further includes an air knife bracket 500. The first end of the air knife bracket 500 is connected to the cam guide rod 210, and the second end of the air knife bracket 500 is connected to the air knife assembly 100, with a simple structure and convenient assembly.

[0087] Embodiment 2

[0088] In some alternative embodiments, the present application provides a battery cell production system, including the air knife driving mechanism as described above.

[0089] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the structure and implementation principle of the battery cell production system described above can refer to the corresponding structure and implementation principle in the aforementioned embodiment 1, and will not be repeated here.

[0090] The wind knife driving mechanism of the present application includes a wind knife assembly 100, a cam assembly 200 and a driving assembly 300. The cam assembly 200 includes a cam guide rod 210 and a guide sleeve 220 sleeved outside the cam guide rod 210. The guide sleeve 220 is fixedly mounted on the outer shell of the driving assembly 300. The guide sleeve 220 is provided with a limiting groove 221 extending along the axial and circumferential directions of the guide sleeve 220. The cam guide rod 210 is provided with a limiting protrusion 211 cooperating with the limiting groove 221. The wind knife assembly 100 is connected to the guide sleeve 220. The wind knife assembly 100 has a wind knife nozzle 110 for blowing gas to the target part. The driving assembly 300 is connected to the cam guide rod 210 for driving the cam guide rod 210 to reciprocate, thereby driving the wind knife assembly 100 to reciprocate along the axial and circumferential directions of the guide sleeve 220. The cam guide rod 210 is driven to move by the driving assembly 300. Under the action of the limiting protrusion 211 and the limiting groove 221, the cam guide rod 210 moves axially along the guide sleeve 220 and rotates circumferentially along the guide sleeve 220, so that the wind knife assembly 100 can swing back and forth. The structure is simple and reliable, and the gas output by the wind knife nozzle 110 can be aimed at the target part, achieving a good blowing and segmenting effect.

[0091] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air knife driving mechanism, characterized in that, It includes an air knife assembly, a cam assembly, and a drive assembly; The cam assembly includes a cam guide rod and a guide sleeve sleeved outside the cam guide rod. The guide sleeve is fixedly installed on the housing of the drive assembly. The guide sleeve is provided with a limit groove extending along the axial and circumferential directions of the guide sleeve, and the cam guide rod is provided with a limit protrusion cooperating with the limit groove; The air knife assembly is connected to the cam guide rod, and the air knife assembly has an air knife nozzle for blowing gas to a target part; The drive assembly is connected to the cam guide rod and is used to drive the cam guide rod to reciprocate, thereby driving the air knife assembly to reciprocate along the axial and circumferential directions of the guide sleeve.

2. The air knife driving mechanism according to claim 1, characterized in that, The drive assembly includes a linear cylinder. The linear cylinder includes a cylinder housing and a cylinder piston. The cylinder housing is provided with a cylinder inner cavity, the cylinder piston is arranged in the cylinder inner cavity, and the cylinder piston is connected to the cam guide rod.

3. The air knife driving mechanism according to claim 2, characterized in that, The air knife drive mechanism further includes a reciprocating valve assembly. The reciprocating valve assembly includes a valve body housing, a valve core shaft, a first sealing valve core, and a second sealing valve core; A first chamber, a second chamber, and a valve core chamber connecting the first chamber and the second chamber are arranged in the valve body housing. The first chamber is provided with a first air passage, the second chamber is provided with a second air passage, the cylinder piston divides the cylinder inner cavity into a first inner cavity and a second inner cavity, and the first air passage and the second air passage are respectively connected to the first inner cavity and the second inner cavity; The valve core shaft is movably arranged in the valve core chamber. The first sealing valve core is arranged on the valve core shaft and is located in the first chamber, and the second sealing valve core is arranged on the valve core shaft and is located in the second chamber; The valve body housing is provided with an air inlet. The valve core shaft includes a first state in which the first air passage is communicated with the air inlet, and a second state in which the second air passage is communicated with the air inlet.

4. The air knife driving mechanism according to claim 3, characterized in that, A third chamber, a fourth chamber, a fifth chamber, a sixth chamber, a valve core spring, a first overflow device, a second overflow device, a first piston, and a second piston are further arranged in the valve body housing; The fifth chamber is connected to the first chamber through the third chamber, and the sixth chamber is connected to the second chamber through the fourth chamber; The first piston is arranged at the first end of the valve core shaft and is in sealing cooperation with the third chamber. The first piston and the third chamber are connected through the valve core spring. The second piston is arranged at the second end of the valve core shaft and is in sealing cooperation with the fourth chamber; The fifth chamber is connected to the first inner cavity through the first overflow device, and the sixth chamber is connected to the second inner cavity through the second overflow device.

5. The air knife driving mechanism according to claim 4, characterized in that, The first overflow device includes a first overflow valve core, a first overflow valve spring, and a first overflow valve end cover; A first overflow chamber is further arranged in the valve body housing. The fifth chamber is connected to the first inner cavity through the first overflow chamber; The first overflow valve core is arranged in the first overflow chamber; The first overflow valve end cover seals the first overflow chamber, and a first overflow valve spring is arranged between the first overflow valve end cover and the first overflow valve core.

6. The air knife driving mechanism according to claim 5, characterized in that, The second overflow device includes a second overflow valve core, a second overflow valve spring, a check valve, and a second overflow valve end cover; A second overflow chamber is further arranged in the valve body housing, and the sixth chamber is connected to the second inner chamber through the second overflow chamber; The second overflow valve core is arranged in the second overflow chamber; The second overflow valve end cover seals the second overflow chamber, and a second overflow valve spring is arranged between the second overflow valve end cover and the second overflow valve core; An air flow channel is arranged in the second overflow valve core, and the check valve is arranged in the air flow channel.

7. The air knife driving mechanism according to claim 3, characterized in that, The air knife driving mechanism further includes a deflector plate, and a first deflector channel and a second deflector channel are arranged in the deflector plate. The first air path channel is connected to the first inner chamber through the first deflector channel, and the second air path channel is connected to the second inner chamber through the second deflector channel.

8. The air knife driving mechanism according to claim 4, characterized in that, The valve body housing is further provided with a first exhaust muffler and a second exhaust muffler. The first exhaust muffler is connected to the third chamber, and the second exhaust muffler is connected to the fourth chamber.

9. The air knife driving mechanism according to claim 1, wherein The air knife driving mechanism further includes an air knife support. The first end of the air knife support is connected to the cam guide rod, and the second end of the air knife support is connected to the air knife assembly.

10. A solar cell production system, characterized in that, It includes the air knife driving mechanism according to any one of claims 1 to 9.

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