Cutting device for metal lithium strip

Abstract

The utility model relates to the technical field of cutting equipment, in particular to a cutting device for a metal lithium strip, which comprises a bottom plate and a support plate arranged on the bottom plate, the support plate is rotatably provided with a first air swelling shaft and a tension detection roller used for testing the tension in the lithium strip conveying process, a discharging roller for storing a lithium strip coil is arranged on the first air swelling shaft; a fixing plate is arranged on the supporting plate, and a cutting mechanism used for cutting the lithium strip and a material pulling mechanism used for pulling the lithium strip to the cutting position and controlling the cutting size of the lithium strip are arranged on the fixing plate; a supporting rod is arranged on the supporting plate, and a deviation correcting sensor used for detecting the conveying track of the lithium strip is arranged on the supporting rod. The tension of the lithium strip is detected through the tension detection roller in the process of pulling the lithium strip by the material pulling mechanism, the lithium strip is prevented from being damaged due to overlarge tension, and when the tension is overlarge, the rotating speed of the first air swelling shaft is increased, otherwise, the rotating speed is reduced, so that the tension of the lithium strip detected by the tension detection roller is kept at 1N.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting equipment, in particular to a cutting device for a metal lithium belt. Background Art

[0002] In the lithium-ion battery manufacturing industry, lithium metal ribbon is one of the key materials. Its processing accuracy and efficiency directly affect the quality and production cost of the final product. However, in the process of processing lithium metal ribbon, cutting is one of the processing steps. In order to achieve accurate cutting of lithium metal ribbon, specific cutting equipment is required to cut it. Among them, the existing cutting machine is as follows:

[0003] A Chinese patent document with announcement number CN202333037U discloses a lithium strip cutting machine, which specifically discloses: including a feeding device, a cutting device and a control system, wherein: the feeding device includes a base body, a rack for placing lithium strips is placed at one end of the base body, a slide is provided on the base body, a lower pressure plate is provided on the slide, another lower pressure plate is provided on the end of the base body where the lithium strip comes out, and the base body is also provided with a buffer, and the slide and the lower pressure plate are driven by different cylinders respectively; the cutting device includes a cutting knife assembly and a cutting cylinder for driving the cutting knife for cutting; the control system includes a programmable logic controller and a human-machine operation interface, the human-machine operation interface is connected to the programmable logic controller, and the programmable logic controller controls all cylinders through solenoid valves.

[0004] As can be seen from the above, the existing cutting machine first places the lithium belt between the slide and the lower pressure plate, then the lower pressure cylinder drives the lower pressure plate to move down to press the lithium belt on the slide, and the slide cylinder drives the slide forward to drive the lithium belt forward. When the slide and the lower pressure plate move forward to the buffer together, the slide stops due to the obstruction of the buffer. At this time, the lower pressure cylinder drives the lower pressure plate to move up to release the lithium belt, and the slide cylinder drives the slide to reset. At the same time, the cutting cylinder drives the vertical cutter in the cutting knife assembly to move down to cut the lithium belt. However, in the process of pulling the lithium belt to move, the existing cutting machine may damage the lithium belt due to excessive tension, thereby affecting the cutting quality; and when the lithium belt is pulled to move, the movement trajectory of the lithium belt may be offset, resulting in uneven subsequent cutting of the lithium belt. Therefore, a cutting device for metal lithium belt is now used to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a cutting device for metal lithium strips in view of the deficiencies in the prior art, so as to solve the technical problems that the lithium strips may be damaged due to excessive tension when the existing cutting machine is pulling the lithium strips for movement, and the movement trajectory of the lithium strips may be offset.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A cutting device for a metal lithium strip comprises a bottom plate and a support plate mounted on the bottom plate, a first air expansion shaft and a tension detection roller for testing the tension of the lithium strip during conveying are rotatably provided on the support plate, a feeding roller for storing a lithium strip material roll is mounted on the first air expansion shaft; a fixed plate is provided on the support plate, a cutting mechanism for cutting the lithium strip and a pulling mechanism for pulling the lithium strip to a cutting position and controlling the cutting size of the lithium strip are mounted on the fixed plate;

[0008] A support rod is provided on the support plate, and a correction sensor for detecting the conveying track of the lithium belt is installed on the support rod; an adjustment mechanism for adjusting the position of the first air inflation shaft and the tension detection roller to correct the lithium belt is installed on the support plate.

[0009] Furthermore, a clamping mechanism for clamping the lithium strip is installed on the fixed plate, and the clamping mechanism is placed on a side of the cutting mechanism away from the material pulling mechanism.

[0010] Furthermore, the adjustment mechanism includes a first mounting plate arranged on the support plate, a first sliding seat whose sliding direction is consistent with the axial direction of the first air-inflating shaft is slidably provided on the first mounting plate, and the first air-inflating shaft is rotatably provided on the first sliding seat; a second servo motor whose output shaft is horizontally arranged is mounted on the first sliding seat, and the output shaft of the second servo motor is connected to the end of the first air-inflating shaft; a second mounting plate is arranged on the support plate, and a second sliding seat whose sliding direction is consistent with the axial direction of the tension detection roller is slidably provided on the second mounting plate, the tension detection roller is rotatably provided on the second sliding seat, and a through-axis tension sensor for detecting the tension of the lithium belt is provided between the second sliding seat and the tension detection roller; the first sliding seat and the second sliding seat are connected by a connecting rod.

[0011] Furthermore, the clamping mechanism includes a support platform arranged on a fixed plate and used to support the lithium belt, and also includes a first support frame arranged on the support platform, the first support frame is equipped with a lifting frame that can slide up and down and is placed above the support platform, and the lifting frame is fixed with a first pressing block for pressing the lithium belt onto the support platform; a first cylinder with a telescopic rod arranged downward is installed on the first support frame, and the end of the telescopic rod of the first cylinder is fixed to the lifting frame.

[0012] Furthermore, the cutting mechanism includes a second support frame fixedly arranged on a fixed plate, a discharge table for supporting the lithium strip is provided in the second support frame, and a first slider and a second slider that can slide towards or away from each other are provided on the side of the second support frame, and the first slider and the second slider slide up and down; an upper cutter is installed on the first slider, and a lower cutter used in conjunction with the upper cutter is installed on the second slider, and the upper cutter and the lower cutter are placed on one side of the discharge table close to the pulling mechanism.

[0013] Furthermore, a second cylinder for arranging the telescopic rod downward is installed on the second supporting frame, and the end of the telescopic rod of the second cylinder is fixed to the first slider; a third cylinder for arranging the telescopic rod upward is installed on the fixing plate, and the end of the telescopic rod of the third cylinder is fixed to the second slider.

[0014] Furthermore, a lifting rod that can slide up and down is provided on the first slider, and a second pressing block placed above the unloading table and used to press the lithium strip is fixed at the bottom end of the lifting rod. A spring is wound around the lifting rod, and the spring is placed between the first slider and the second pressing block to apply a downward force to the second pressing block; the bottom surface of the second pressing block is lower than the blade of the upper cutter.

[0015] Furthermore, the material pulling mechanism includes a third sliding seat slidably arranged on the fixed plate and the sliding direction is consistent with the lithium belt conveying direction. The third sliding seat is equipped with a clamping cylinder, and clamping blocks for clamping the lithium belt are provided on the two movable ends of the clamping cylinder.

[0016] Furthermore, a lifting seat that can move up and down and a fourth cylinder for driving the lifting seat to move up and down are provided on the fixed plate. The lifting seat is placed between the unloading platform and the pulling mechanism, and a vacuum suction plate for sucking the bottom surface of the lithium belt is installed on the lifting seat.

[0017] Furthermore, a first diverter roller and a second diverter roller are rotatably arranged in a row on the support plate, and the first diverter roller and the second diverter roller are both placed between the tension detection roller and the clamping mechanism; a second air expansion shaft is rotatably provided on the support plate, and a receiving roll for winding up the diaphragm is provided on the second air expansion shaft; a third servo motor with an output shaft connected to the end of the second air expansion shaft is installed on the support plate; and a plurality of second rollers for guiding the diaphragm are rotatably provided on the support plate.

[0018] The beneficial effects of the utility model are as follows: when cutting is required, the initial end of the lithium ribbon is placed in the cutting position of the cutting mechanism, the pulling mechanism is first operated to clamp the initial end of the lithium ribbon, and then the lithium ribbon is pulled to move, while the lithium ribbon is pulled, the first air inflation shaft drives the unwinding roller to rotate, so that the lithium ribbon roll is unwound to realize the transportation of the lithium ribbon, and when the lithium ribbon is pulled to a specified size, the cutting mechanism can be operated to cut the lithium ribbon; after cutting, the new initial end of the lithium ribbon will be placed in the cutting position of the cutting mechanism, the pulling mechanism is operated again to clamp the new initial end of the lithium ribbon, and then the lithium ribbon is pulled, and this cycle is repeated to continuously cut the lithium ribbon.

[0019] The pulling mechanism detects the tension of the lithium belt through the tension detection roller during the process of pulling the lithium belt to prevent it from being damaged due to excessive tension. When the tension is too large, the speed of the first air expansion shaft is increased, otherwise the speed is reduced, so that the tension of the lithium belt detected by the tension detection roller is maintained at 1N.

[0020] When the deviation correction sensor detects that the conveying track of the lithium belt is offset, the adjustment mechanism is operated to adjust the position of the first air expansion shaft and the tension detection roller to correct the position of the lithium belt, realize automatic deviation correction, and improve the quality of subsequent cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0022] Figure 2 It is a schematic diagram of the structure inside the shell of the utility model.

[0023] Figure 3 It is a structural schematic diagram of the regulating mechanism of the utility model.

[0024] Figure 4 It is a structural schematic diagram of the pressing mechanism, cutting mechanism and material pulling mechanism of the utility model.

[0025] Figure 5 This is a structural schematic diagram from another perspective of the clamping mechanism, cutting mechanism and material pulling mechanism of the utility model.

[0026] Figure 6 It is a partial structural schematic diagram of the cutting mechanism of the utility model.

[0027] Reference numerals include:

[0028] 1. Bottom plate; 2. Support plate; 3. Shell; 4. First air expansion shaft; 41. Feeding roller; 5. First over roller; 6. Tension detection roller; 61. Through-axis tension sensor; 7. Adjustment mechanism; 71. First mounting plate; 72. First sliding seat; 73. Fixed block; 74. First servo motor; 75. First screw rod; 76. Second servo motor; 77. Connecting rod; 78. Second mounting plate; 79. Second sliding seat; 8. Support rod; 9. Correction sensor; 10. First diverter roller; 11. Second diverter roller; 12. Second over roller; 13. Second air expansion shaft; 131. Feeding roll; 132. Third servo motor; 14. Fixed plate; 15. Pressing mechanism; 151. Support table; 152. A supporting frame; 153, a lifting frame; 154, a first pressing block; 155, a first cylinder; 16, a cutting mechanism; 161, a second supporting frame; 162, a material unloading table; 163, a first sliding block; 164, an upper cutting knife; 165, a second cylinder; 166, a second sliding block; 167, a lower cutting knife; 168, a third cylinder; 169, a second pressing block; 1610, a lifting rod; 1611, a spring; 17, a material pulling mechanism; 171, a third sliding seat; 172, a clamping claw cylinder; 173, a clamping block; 174, a mounting block; 175, a second screw rod; 176, a screw rod nut; 177, a fourth servo motor; 18, a fourth cylinder; 19, a lifting seat; 20, a vacuum suction plate; 21, a material stacking table. DETAILED DESCRIPTION

[0029] The following is a detailed description of a cutting device for a metal lithium strip of the utility model in conjunction with the accompanying drawings.

[0030] like Figure 1-2 As shown, an embodiment of a cutting device for a metal lithium strip of the utility model includes a base plate 1 and a support plate 2 mounted on the base plate 1, the support plate 2 is arranged vertically, a first air inflation shaft 4 is rotatably provided on the support plate 2, and a discharge roller 41 for storing a lithium strip material roll is mounted on the first air inflation shaft 4; by driving the first air inflation shaft 4 to rotate, the discharge roller 41 can be driven to rotate to discharge the lithium strip, and the discharged lithium strip is transported to a designated position for cutting. Among them, a plurality of first rollers 5 for guiding the lithium belt during the conveying process are provided on the support plate 2, and a tension detection roller 6 for testing the tension of the lithium belt during the conveying process is also provided; the first air inflation shaft 4 rotates to discharge the lithium belt, and the discharged lithium belt passes through the first roller 5 and then the tension detection roller 6 before being conveyed to the cutting position, and then is conveyed to the designated position for cutting. During the conveying process, the tension of the lithium belt is detected by the tension detection roller 6 to prevent it from being damaged due to excessive tension; when the tension is too large, the rotation speed of the first air inflation shaft 4 is increased, and vice versa, the rotation speed is reduced, so that the tension of the lithium belt detected by the tension detection roller 6 is maintained at 1N.

[0031] In order to realize the cutting of the lithium strip, a fixed plate 14 is provided on the support plate 2, and a cutting mechanism 16 for cutting the lithium strip and a pulling mechanism 17 for pulling the lithium strip to the cutting position and controlling the cutting size of the lithium strip are installed on the fixed plate 14; the initial end of the lithium strip is placed at the cutting position of the cutting mechanism 16, the pulling mechanism 17 is first operated to clamp the initial end of the lithium strip, and then the lithium strip is pulled to move, and the tension of the lithium strip is detected by the tension detection roller 6 during the pulling process to prevent it from being damaged due to excessive tension; the lithium strip passes through the cutting mechanism 16, and while the lithium strip is pulled, the lithium strip material roll is unloaded to realize the transportation of the lithium strip, and when the lithium strip is pulled to the specified size, the cutting mechanism 16 can be operated to cut the lithium strip; after cutting, the new initial end of the lithium strip will be placed at the cutting position of the cutting mechanism 16, the pulling mechanism 17 is operated again to clamp the new initial end of the lithium strip, and then the lithium strip is pulled, and this cycle is repeated to continuously cut the lithium strip.

[0032] In addition, after the lithium ribbon is cut, in order to prevent the initial end of the lithium ribbon from automatically retreating and escaping from the cutting position of the cutting mechanism 16, a clamping mechanism 15 for clamping the lithium ribbon is also installed on the fixed plate 14. The clamping mechanism 15 is placed on the side of the cutting mechanism 16 away from the pulling mechanism 17. After the lithium ribbon passes through the first roller 5 and the tension detection roller 6, it first passes through the clamping mechanism 15 and then passes through the cutting mechanism 16. Before the cutting mechanism 16 is operated to cut the lithium ribbon, the clamping mechanism 15 is first operated to clamp the lithium ribbon, and then the cutting mechanism 16 is operated to cut the lithium ribbon. The clamping mechanism 15 clamps the lithium ribbon to prevent it from retreating. When the subsequent pulling mechanism 17 clamps the initial end of the lithium ribbon and pulls the lithium ribbon to move, the clamping mechanism 15 releases the lithium ribbon. When the pulling mechanism 17 pulls the lithium ribbon to a specified size, the clamping mechanism 15 clamps the lithium ribbon again.

[0033] Preferably, a support rod 8 is provided on the support plate 2, and a correction sensor 9 for detecting the conveying track of the lithium belt is installed on the support rod 8. In the process of pulling the lithium belt to move (convey), the correction sensor 9 detects the position of the edge of the lithium belt to detect whether the conveying track of the lithium belt is offset. When the deviation occurs, in order to realize the correction of the position of the lithium belt, an adjustment mechanism 7 for adjusting the position of the first air expansion shaft 4, the first roller 5 and the tension detection roller 6 to correct the deviation of the lithium belt is installed on the support plate 2. The adjustment mechanism 7 is placed on the side of the support plate 2 away from the first air expansion shaft 4 and the tension detection roller 6; when the correction sensor 9 detects that the conveying track of the lithium belt is offset, the adjustment mechanism 7 is operated to adjust the position of the first air expansion shaft 4, the first roller 5 and the tension detection roller 6 to correct the position of the lithium belt and realize automatic correction.

[0034] In addition, a layer of diaphragm is provided on the surface of the lithium ribbon to be cut. In order to tear off the diaphragm before cutting the lithium ribbon, a first diverter roller 10 and a second diverter roller 11 are rotatably arranged in a row on the support plate 2, and the first diverter roller 10 and the second diverter roller 11 are both placed between the tension detection roller 6 and the clamping mechanism 15. The lithium ribbon with the diaphragm first passes through the tension detection roller 6, and then passes through the first diverter roller 10 and the second diverter roller 11. While passing through the first diverter roller 10 and the second diverter roller 11, the diaphragm detaches from the surface of the lithium ribbon and passes between the first diverter roller 10 and the second diverter roller 11. The lithium ribbon with the diaphragm torn off will pass through the clamping mechanism 15 and the cutting mechanism 16 in turn. How to tear off the diaphragm is described as follows.

[0035] A second air-inflating shaft 13 is rotatably provided on the support plate 2, and a reel 131 for reeling the diaphragm is provided on the second air-inflating shaft 13. By driving the second air-inflating shaft 13 to rotate, the reel 131 can be driven to rotate to reel the diaphragm. When the pulling mechanism 17 pulls the lithium strip, the second air-inflating shaft 13 is driven to rotate so that the reel 131 reels the diaphragm. Moreover, the diaphragm is pulled during the reeling process, thereby tearing the diaphragm off the surface of the lithium strip. The lithium strip segment without the diaphragm is pulled to the cutting position by the pulling mechanism 17 for cutting. In order to drive the second air expansion shaft 13 to rotate, a third servo motor 132 whose output shaft is connected to the end of the second air expansion shaft 13 is installed on the support plate 2. The second air expansion shaft 13 can be driven to rotate by running the third servo motor 132, thereby driving the material collection roll 131 to rotate to collect the diaphragm; and after the pulling mechanism 17 pulls the lithium belt to move a certain size, it drives the material collection roll 131 to rotate to collect the diaphragm of the corresponding size. In addition, a number of second rollers 12 for guiding the diaphragm are rotatably provided on the support plate 2. Under the action of the second rollers 12, the diaphragm can be pulled off the lithium belt and rolled up.

[0036] like Figure 3As shown, the adjustment mechanism 7 includes a first mounting plate 71 arranged on the support plate 2, and a first sliding seat 72 whose sliding direction is consistent with the axial direction of the first gas expansion shaft 4 is slidably provided on the first mounting plate 71, and the first gas expansion shaft 4 is rotatably arranged on the first sliding seat 72. When the first sliding seat 72 is driven to slide on the first mounting plate 71, the first gas expansion shaft 4 and the discharge roller 41 can be driven to move together to adjust the position of the discharge roller 41. In order to drive the first sliding seat 72 to slide on the first mounting plate 71, a first servo motor 74 with a horizontally arranged output shaft is installed on the first mounting plate 71, and a first screw rod 75 with an axial direction consistent with the sliding direction of the first sliding seat 72 is installed on the output shaft of the first servo motor 74, and a fixing block 73 is provided on the first sliding seat 72, and the fixing block 73 is threadedly connected with the first screw rod 75; by running the first servo motor 74 to drive the first screw rod 75 to rotate, under the action of the threaded connection between the fixing block 73 and the first screw rod 75, the first sliding seat 72 is driven to slide on the first mounting plate 71.

[0037] In order to drive the first air inflation shaft 4 to rotate on the first sliding seat 72, a second servo motor 76 with a horizontally arranged output shaft is installed on the first sliding seat 72, and the output shaft of the second servo motor 76 is connected to the end of the first air inflation shaft 4; running the second servo motor 76 can drive the first air inflation shaft 4 to rotate, and the first air inflation shaft 4 drives the discharge roller 41 to rotate together to discharge the lithium strip material roll.

[0038] Further, a second mounting plate 78 is provided on the support plate 2, and a second sliding seat 79 whose sliding direction is consistent with the axial direction of the tension detection roller 6 is slidably provided on the second mounting plate 78, and the tension detection roller 6 is rotatably provided on the second sliding seat 79, and a through-axis tension sensor 61 (model may be LZ-ZLCKF200) for detecting the tension of the lithium strip is provided between the second sliding seat 79 and the tension detection roller 6; in addition, the first sliding seat 72 is connected to the second sliding seat 79 by a connecting rod 77, and the first over roller 5 is rotatably provided on the connecting rod 77. When the first servo motor 74 drives the first sliding seat 72 to slide, under the action of the connecting rod 77, the second sliding seat 79 slides on the second mounting plate 78; when the deviation correction sensor 9 detects that the conveying track of the lithium strip is offset, the first servo motor 74 is operated, so that the unwinding roller 41, the tension detection roller 6 and the first over roller 5 can be moved and adjusted in position at the same time, so as to adjust the moving track of the lithium strip and realize the automatic deviation correction of the lithium strip.

[0039] like Figure 4As shown, the clamping mechanism 15 includes a support platform 151 arranged on the fixed plate 14 and used to support the lithium belt, and also includes a first support frame 152 arranged on the support platform 151. The first support frame 152 is equipped with a lifting frame 153 that can slide up and down and is placed above the support platform 151. The lifting frame 153 is fixed with a first pressing block 154 for pressing the lithium belt onto the support platform 151; when the lithium belt is pulled by the pulling mechanism 17 for transportation, it will pass between the first pressing block 154 and the support platform 151. After pulling the lithium belt of the specified size, the lifting frame 153 is driven to slide downward, and the first pressing block 154 and the support platform 151 cooperate to clamp the lithium belt to prevent the lithium belt from automatically retreating after cutting. In addition, in order to drive the lifting frame 153 to slide up and down, a first cylinder 155 with a telescopic rod arranged downward is installed on the first support frame 152, and the end of the telescopic rod of the first cylinder 155 is fixedly arranged with the lifting frame 153.

[0040] like Figure 4-6 As shown, the cutting mechanism 16 includes a second support frame 161 fixedly arranged on the fixed plate 14, and a discharge table 162 for supporting the lithium strip is provided in the second support frame 161, and a first slider 163 and a second slider 166 that can slide towards or away from each other are provided on the side of the second support frame 161, and the first slider 163 and the second slider 166 slide up and down; wherein, an upper cutter 164 is installed on the first slider 163, and a lower cutter 167 used in conjunction with the upper cutter 164 is installed on the second slider 166, and the upper cutter 164 and the lower cutter 167 are placed on the side of the discharge table 162 close to the pulling mechanism 17.

[0041] When the pulling mechanism 17 pulls the lithium strip to convey the specified size, the upper cutter 164 and the lower cutter 167 are respectively placed on the upper and lower sides of the lithium strip, and then the first slider 163 and the second slider 166 are controlled to move towards each other to drive the upper cutter 164 and the lower cutter 167 to approach each other, thereby cutting the lithium strip to cut the lithium strip of the specified size. In order to control the first slider 163 and the second slider 166 to automatically slide towards or away from each other, a second cylinder 165 with a telescopic rod arranged downward is installed on the second support frame 161, and the end of the telescopic rod of the second cylinder 165 is fixedly set to the first slider 163, and the first slider 163 is driven to slide up and down on the second support frame 161 by running the second cylinder 165; in addition, a third cylinder 168 with a telescopic rod arranged upward is installed on the fixed plate 14, and the end of the telescopic rod of the third cylinder 168 is fixedly set to the second slider 166, and under the action of the simultaneous operation of the second cylinder 165 and the third cylinder 168, the first slider 163 and the second slider 166 are controlled to automatically slide towards or away from each other.

[0042] When the upper cutter 164 and the lower cutter 167 cut the lithium sheet, in order to prevent the lithium sheet from being deformed, a lifting rod 1610 that can slide up and down is provided on the first slider 163, and a second pressing block 169 placed above the unloading platform 162 and used to press the lithium strip is fixed at the bottom end of the lifting rod 1610. A spring 1611 is wound around the lifting rod 1610, and the spring 1611 is placed between the first slider 163 and the second pressing block 169 to apply a downward force to the second pressing block 169; the bottom surface of the second pressing block 169 is lower than the blade of the upper cutter 164. When the first slider 163 and the second slider 166 are controlled to approach each other, the second pressing block 169 contacts the lithium ribbon first to press it onto the unloading table 162, and the first slider 163 continues to slide downward, and the spring 1611 is compressed to press the lithium ribbon tightly. After pressing, the lithium ribbon is cut by the upper cutting knife 164 and the lower cutting knife 167 that are close to each other. Under the action of the second pressing block 169, the lithium ribbon is prevented from being deformed during the cutting process, thereby affecting the cutting quality.

[0043] The fixed plate 14 is provided with a stacking table 21 for stacking the cut lithium ribbons. The cut lithium ribbons are placed on the stacking table 21 for stacking, so as to facilitate subsequent centralized transportation.

[0044] In addition, a lifting seat 19 that can move up and down and a fourth cylinder 18 for driving the lifting seat 19 to move up and down are provided on the fixed plate 14. The lifting seat 19 is placed between the unloading platform 162 and the pulling mechanism 17, and a vacuum suction plate 20 for sucking the bottom surface of the lithium belt is installed on the lifting seat 19; when the pulling mechanism 17 pulls the lithium belt of a specified size, the fourth cylinder 18 is first operated to drive the lifting seat 19 to move upward, so that the top surface of the vacuum suction plate 20 contacts the bottom surface of the lithium belt, and then the vacuum suction plate 20 is operated to suck the bottom surface of the lithium belt, and finally the upper cutter 164 and the lower cutter 167 are controlled to approach each other to cut the lithium belt. Under the action of the vacuum suction plate 20, the lithium belt will not be deformed during the cutting process; and after the lithium belt is cut, the vacuum suction plate 20 can also play a supporting role to prevent the lithium belt from falling.

[0045] Furthermore, the pulling mechanism 17 includes a third sliding seat 171 which is slidably arranged on the fixed plate 14 and the sliding direction is consistent with the conveying direction of the lithium belt. The third sliding seat 171 is equipped with a clamping cylinder 172, and clamping blocks 173 for clamping the lithium belt are provided on the two movable ends of the clamping cylinder 172; after cutting a section of lithium belt of a specified size, the third sliding seat 171 is controlled to slide on the fixed plate 14 in the direction close to the unloading platform 162 to drive the two clamping blocks 173 to be respectively placed on the upper and lower sides of the cutting end of the lithium belt, and then the clamping cylinder 172 is operated to clamp the lithium belt through the clamping blocks 173, and then the third sliding seat 171 is controlled to slide in the direction away from the unloading platform 162. After sliding a specified distance (corresponding to the size of the lithium belt to be cut), the upper cutter 164 and the lower cutter 167 are controlled to approach each other to cut the lithium belt.

[0046] In order to control the third sliding seat 171 to slide automatically on the fixed plate 14, a mounting block 174 is provided on the support plate 2, and a second screw rod 175 whose axial direction is consistent with the sliding direction of the third sliding seat 171 is rotatably provided on the mounting block 174, and a fourth servo motor 177 is also installed on the support plate 2, and the output shaft of the fourth servo motor 177 is connected to the end of the second screw rod 175, and a screw nut 176 is fixedly provided on the third sliding seat 171, and the screw nut 176 is threadedly connected to the second screw rod 175. By running the fourth servo motor 177 to drive the second screw rod 175 to rotate, under the action of the screw nut 176, the third sliding seat 171 can be driven to slide automatically on the fixed plate 14, and slide a specified distance.

[0047] In summary, it can be seen that the utility model has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0048] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A cutting device for a metal lithium strip, characterized in that: The invention comprises a bottom plate (1) and a support plate (2) mounted on the bottom plate (1); a first air-inflating shaft (4) and a tension detection roller (6) for testing the tension of the lithium strip during the conveying process are rotatably mounted on the support plate (2); a material unwinding roller (41) for storing a lithium strip roll is mounted on the first air-inflating shaft (4); a fixed plate (14) is mounted on the support plate (2); a cutting mechanism (16) for cutting the lithium strip and a material pulling mechanism (17) for pulling the lithium strip to a cutting position and controlling the cutting size of the lithium strip are mounted on the fixed plate (14); A support rod (8) is provided on the support plate (2), and a deviation correction sensor (9) for detecting the conveying track of the lithium belt is installed on the support rod (8); an adjustment mechanism (7) for adjusting the position of the first air expansion shaft (4) and the tension detection roller (6) to correct the deviation of the lithium belt is installed on the support plate (2).

2. The cutting device for a metal lithium strip according to claim 1, characterized in that: A pressing mechanism (15) for pressing the lithium strip is arranged on the fixing plate (14), and the pressing mechanism (15) is arranged on a side of the cutting mechanism (16) away from the material pulling mechanism (17).

3. The cutting device for a metal lithium strip according to claim 1, characterized in that: The adjustment mechanism (7) comprises a first mounting plate (71) arranged on the support plate (2), a first sliding seat (72) having a sliding direction consistent with the axial direction of the first air expansion shaft (4) being slidably provided on the first mounting plate (71), and the first air expansion shaft (4) being rotatably provided on the first sliding seat (72); a second servo motor (76) having an output shaft arranged horizontally is installed on the first sliding seat (72), and the output shaft of the second servo motor (76) is connected to the end of the first air expansion shaft (4); a second mounting plate (78) is arranged on the support plate (2), and a second sliding seat (79) having a sliding direction consistent with the axial direction of the tension detection roller (6) is slidably provided on the second mounting plate (78), and the tension detection roller (6) is rotatably provided on the second sliding seat (79), and a through-axis tension sensor (61) for detecting the tension of the lithium strip is provided between the second sliding seat (79) and the tension detection roller (6); the first sliding seat (72) and the second sliding seat (79) are connected via a connecting rod (77).

4. The cutting device for a metal lithium strip according to claim 2, characterized in that: The pressing mechanism (15) comprises a support platform (151) arranged on a fixed plate (14) and used to support the lithium strip, and also comprises a first support frame (152) arranged on the support platform (151); the first support frame (152) is provided with a lifting frame (153) which can slide up and down and is placed above the support platform (151); the lifting frame (153) is fixedly provided with a first pressing block (154) used to press the lithium strip onto the support platform (151); and a first cylinder (155) with a telescopic rod arranged downward is provided on the first support frame (152); the end of the telescopic rod of the first cylinder (155) is fixedly provided with the lifting frame (153).

5. The cutting device for a metal lithium strip according to claim 1, characterized in that: The cutting mechanism (16) comprises a second support frame (161) fixedly arranged on a fixed plate (14); a material discharging platform (162) for supporting the lithium strip is arranged in the second support frame (161); a first slider (163) and a second slider (166) which can slide towards or away from each other are arranged beside the second support frame (161); the first slider (163) and the second slider (166) slide up and down; an upper cutter (164) is arranged on the first slider (163); a lower cutter (167) used in conjunction with the upper cutter (164) is arranged on the second slider (166); the upper cutter (164) and the lower cutter (167) are placed on one side of the material discharging platform (162) close to the material pulling mechanism (17).

6. The cutting device for a metal lithium strip according to claim 5, characterized in that: A second cylinder (165) for arranging a telescopic rod downward is installed on the second support frame (161), and the end of the telescopic rod of the second cylinder (165) is fixedly arranged with the first slider (163); a third cylinder (168) for arranging a telescopic rod upward is installed on the fixed plate (14), and the end of the telescopic rod of the third cylinder (168) is fixedly arranged with the second slider (166).

7. The cutting device for a metal lithium strip according to claim 5, characterized in that: A lifting rod (1610) capable of sliding up and down is provided on the first slider (163); a second pressing block (169) placed above the unloading platform (162) and used for pressing the lithium strip is fixedly provided at the bottom end of the lifting rod (1610); a spring (1611) is wound around the lifting rod (1610), and the spring (1611) is placed between the first slider (163) and the second pressing block (169) to apply a downward force to the second pressing block (169); the bottom surface of the second pressing block (169) is lower than the blade of the upper cutter (164).

8. The cutting device for a metal lithium strip according to claim 1, characterized in that: The material pulling mechanism (17) comprises a third sliding seat (171) which is slidably arranged on the fixed plate (14) and the sliding direction of which is consistent with the conveying direction of the lithium belt. A clamping cylinder (172) is installed on the third sliding seat (171), and clamping blocks (173) for clamping the lithium belt are provided at the two movable ends of the clamping cylinder (172).

9. The cutting device for a metal lithium strip according to claim 1, characterized in that: A lifting seat (19) movable up and down and a fourth cylinder (18) for driving the lifting seat (19) to move up and down are provided on the fixed plate (14); the lifting seat (19) is placed between the unloading platform (162) and the pulling mechanism (17); and a vacuum suction plate (20) for sucking the bottom surface of the lithium belt is installed on the lifting seat (19).

10. The cutting device for a metal lithium strip according to claim 1, characterized in that: A first diverter roller (10) and a second diverter roller (11) are rotatably arranged in a row on the support plate (2), and the first diverter roller (10) and the second diverter roller (11) are both placed between the tension detection roller (6) and the clamping mechanism (15); a second air expansion shaft (13) is rotatably arranged on the support plate (2), and a reel (131) for reeling up the diaphragm is arranged on the second air expansion shaft (13); a third servo motor (132) having an output shaft connected to the end of the second air expansion shaft (13) is installed on the support plate (2); and a plurality of second rollers (12) for guiding the diaphragm are rotatably arranged on the support plate (2).

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