Nickel strap unwinding mechanism

Abstract

The utility model provides a nickel strap unwinding mechanism which is characterized in that a nickel strap unwinding tray is fixed on a first mounting vertical frame, an upper paper tape winding tray and a lower paper tape winding tray are both fixed on the first mounting vertical frame, and the upper paper tape winding tray and the lower paper tape winding tray respectively correspond to the upper side and the left side of the nickel strap unwinding tray. The three sets of laser range finders correspond to one side of the nickel strap unwinding material disc, one side of the upper paper strap winding material disc and one side of the lower paper strap winding material disc respectively, the strap connecting assembly is fixedly arranged on the left side of the nickel strap unwinding material disc and corresponds to the position between the upper paper strap winding material disc and the lower paper strap winding material disc, and the nickel strap unwinding material disc comprises a magnetic powder tensioner, an air expansion shaft and a first roll material fixing disc. The magnetic powder tensioner is fixed to the first installation vertical frame, the air expansion shaft is rotatably installed on the magnetic powder tensioner, the first coil stock fixing disc is fixed to the air expansion shaft, and the nickel strap unwinding device has the advantages that stable, constant-speed and high-precision unwinding of a nickel strap can be achieved, and the precision of subsequent detection and stamping procedures is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery manufacturing, in particular to a nickel strip unwinding mechanism. Background Art

[0002] New energy batteries have been widely used due to their advantages of energy saving, environmental protection and low carbon. Among them, lithium batteries are the most widely used. From base stations to laptops and mobile phones, lithium batteries are indispensable. Lithium batteries need to be made through winding, liquid injection, sealing, formation and other processes. The two poles of the battery are aluminum electrodes and nickel electrodes respectively, but in actual production, both poles are required to be nickel electrodes, so we need to convert the current aluminum electrodes into nickel electrodes. We will use welding needles to weld the nickel electrodes to lithium batteries. Before welding, the nickel electrodes are on the nickel strip coil. When welding, the nickel electrodes are first punched out of the nickel strip. However, the nickel electrodes on the nickel strip sometimes have defective units. If they are accidentally welded to the battery, the entire battery will be judged as unqualified. Therefore, it is necessary to first detect the nickel electrodes on the nickel strip, screen out the unqualified nickel electrode units in advance and punch them out. In order to improve the accuracy of detection and punching, it is necessary to develop a nickel strip unwinding mechanism to make the unwinding process stable and accurate. Utility Model Content

[0003] The utility model aims to provide a nickel strip unwinding mechanism to solve the problems mentioned in the background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A nickel strip unwinding mechanism comprises a first mounting stand, a nickel strip unwinding material tray, an upper paper strip winding material tray, a lower paper strip winding material tray, a laser rangefinder, a tape splicing assembly, a first tape break detection assembly and a second tape break detection assembly, wherein the nickel strip unwinding material tray is fixed on the first mounting stand, the upper paper strip winding material tray and the lower paper strip winding material tray are both fixed on the first mounting stand, the upper paper strip winding material tray and the lower paper strip winding material tray correspond to the upper side and the left side of the nickel strip unwinding material tray respectively, and three groups of laser rangefinders are arranged, and the three groups of laser rangefinders correspond to the nickel strip unwinding material tray, the upper paper strip winding material tray and the lower paper strip winding material tray respectively. On one side of the lower paper tape winding disk, the tape connecting assembly is fixedly arranged on the left side of the nickel tape unwinding disk and corresponds to between the upper paper tape winding disk and the lower paper tape winding disk, the first tape break detection assembly is fixedly arranged between the nickel tape unwinding disk and the upper paper tape winding disk, the second tape break detection assembly is fixedly arranged between the nickel tape unwinding disk and the lower paper tape winding disk, the nickel tape unwinding disk includes a magnetic powder tensioner, an air shaft and a first coil fixing disk, the magnetic powder tensioner is fixed on the first mounting stand, the air shaft is rotatably mounted on the magnetic powder tensioner, and the first coil fixing disk is fixed on the air shaft.

[0006] Further description of the utility model: the upper paper tape winding material tray includes a rotary drive assembly and a second winding material fixing disk, the rotary drive assembly is fixed on the first mounting stand, the second winding material fixing disk is fixed on the power output end of the rotary drive assembly, and the structure of the lower paper tape winding material tray is the same as that of the upper paper tape winding material tray.

[0007] Further description of the utility model: the belt connecting assembly includes a first mounting bracket, a first support plate, a first conveying roller, a first cylinder, a first limiting roller, a second cylinder, a first pressure plate, a limiting baffle and a first sensor. The first mounting bracket is fixed on the first mounting stand, the first support plate is fixed on the lower side of the first mounting bracket, the first conveying roller is rotatably mounted on the first mounting bracket and corresponds to the left and right sides of the first mounting bracket, the first cylinder is fixed on the right side of the first mounting bracket with the power output end facing upward, the first limiting roller is rotatably mounted on the power output end of the first cylinder and corresponds to the top of the first conveying roller, the second cylinder is fixed on the first mounting bracket with the power output end facing downward, the first pressure plate is fixed to the power output end of the second cylinder and corresponds to the top of the first support plate, the limiting baffle is fixed on the first mounting bracket and the lower end contacts the upper end surface of the first support plate, a through-belt hole is provided in the middle part of the lower end of the limiting baffle, the second cylinder, the first pressure plate and the limiting baffle are each arranged in two groups and correspond to the left and right sides of the first mounting bracket respectively, and the first sensor is fixed on the first mounting bracket and corresponds to the right side of the first support plate.

[0008] Further description of the utility model: The first conveying roller includes a rotating shaft, a fixed baffle ring and an adjustable baffle ring. The rotating shaft is rotatably mounted on the first mounting bracket. The fixed baffle ring and the adjustable baffle ring are both fixed on the outer periphery of the rotating shaft. The adjustable baffle ring corresponds to the front side of the fixed baffle ring and is positionally adjustable along the front-to-back direction on the rotating shaft.

[0009] Further description of the utility model: the first broken belt detection component includes a second mounting bracket, a second support plate, a second conveying roller, a third cylinder, a second limiting roller, a fourth cylinder, a second pressure plate and a second sensor. The second mounting bracket is fixed on the first mounting stand, the second support plate is fixed on the second mounting bracket and its length direction is consistent with the conveying direction of the material belt, the second conveying roller is rotatably mounted on the second mounting bracket and corresponds to both sides of the second support plate, the third cylinder and the fourth cylinder are both fixed on the second mounting bracket and their power output ends are both facing the support plate, the second limiting roller is rotatably mounted at the power output end of the third cylinder and corresponds to between the second conveying roller and the third cylinder, the second sensor is fixed on the second mounting bracket and corresponds to the upstream side of the conveying of the second support plate, the fourth cylinder corresponds to the downstream side of the conveying of the second support plate, the second pressure plate is fixed at the power output end of the fourth cylinder, and the structure of the second broken belt detection component is the same as that of the first broken belt detection component.

[0010] The beneficial effects of the utility model are as follows: the nickel strip coil is placed on the first coil fixing disk, the front and back sides of the nickel strip are covered with protective paper tapes, under the traction of the post-process traction mechanism, the first coil fixing disk rotates and discharges the nickel strip, the paper tape on the front side of the nickel strip passes through the first tape break detection component and is then wound up by the upper paper tape winding material disk, and the paper tape on the back side passes through the second tape break detection component and is then wound up by the lower paper tape winding material disk, during the nickel strip traction and discharge process, the tension of the nickel strip discharge is controlled by the magnetic powder tensioner, so that it can be discharged stably and at a uniform speed, and three groups of magnetic tensioners are set The optical rangefinder detects the diameters of the coils in the first coil fixing disk, the upper paper tape winding disk and the lower paper tape winding disk respectively, determines the thickness of the coil and feeds back the data to the equipment. The equipment controls the speed of unwinding the nickel tape and the speed of winding the paper tape. The first broken tape detection component and the second broken tape detection component detect the front and back paper tapes respectively. When the paper tape breaks, the equipment stops running and alarms to prompt the operator to handle it. The advantage of this design is that it can realize the stable, uniform and high-precision unwinding of the nickel tape, thereby improving the accuracy of subsequent detection and stamping processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the overall structure diagram of the utility model;

[0012] Figure 2 This is a structural diagram of a nickel strip unwinding material tray in the utility model;

[0013] Figure 3 This is a structural diagram of the upper paper tape winding material tray of the utility model;

[0014] Figure 4 It is a structural diagram of the middle joint belt assembly of the utility model;

[0015] Figure 5 It is a structural diagram of the first belt break detection component in the utility model;

[0016] Description of reference numerals:

[0017] 1. First mounting stand; 2. Nickel tape unwinding tray; 21. Magnetic powder tensioner; 22. Inflatable shaft; 23. First coil fixing tray; 3. Upper paper tape rewinding tray; 31. Rotation drive assembly; 32. Second coil fixing tray; 4. Lower paper tape rewinding tray; 5. Laser rangefinder; 6. Tape splicing assembly; 61. First mounting bracket; 62. First support plate; 63. First conveying roller; 631. Rotation shaft; 632. Fixed baffle ring; 633. Adjusting baffle ring; 64. First cylinder; 65. First limiting roller; 66. Second cylinder; 67. First pressure plate; 68. Limit baffle plate; 681. Belt passing hole; 69. First sensor; 7. First broken belt detection assembly; 71. Second mounting bracket; 72. Second support plate; 73. Second conveying roller;

[0018] 74. The third cylinder; 75. The second limiting roller; 76. The fourth cylinder; 77. The second pressure plate; 78. The second sensor; 8. The second belt break detection component. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] like Figures 1 to 5 As shown, a nickel strip unwinding mechanism comprises a first mounting stand 1, a nickel strip unwinding material tray 2, an upper paper strip winding material tray 3, a lower paper strip winding material tray 4, a laser rangefinder 5, a tape splicing assembly 6, a first tape break detection assembly 7 and a second tape break detection assembly 8, the nickel strip unwinding material tray 2 is fixed on the first mounting stand 1, the upper paper strip winding material tray 3 and the lower paper strip winding material tray 4 are both fixed on the first mounting stand 1, the upper paper strip winding material tray 3 and the lower paper strip winding material tray 4 correspond to the upper side and the left side of the nickel strip unwinding material tray 2 respectively, and three groups of laser rangefinders 5 are arranged, and the three groups of laser rangefinders 5 correspond to the nickel strip unwinding material tray 2, the upper paper strip winding material tray 3 and the lower paper strip winding material tray 4 respectively. On one side of the winding material tray 4, the tape connecting assembly 6 is fixedly arranged on the left side of the nickel tape unwinding material tray 2 and corresponds to between the upper paper tape winding material tray 3 and the lower paper tape winding material tray 4, the first tape break detection assembly 7 is fixedly arranged between the nickel tape unwinding material tray 2 and the upper paper tape winding material tray 3, the second tape break detection assembly 8 is fixedly arranged between the nickel tape unwinding material tray 2 and the lower paper tape winding material tray 4, the nickel tape unwinding material tray 2 includes a magnetic powder tensioner 21, an inflatable shaft 22 and a first coil fixing disk 23, the magnetic powder tensioner 21 is fixed on the first mounting stand 1, the inflatable shaft 22 is rotatably mounted on the magnetic powder tensioner 21, and the first coil fixing disk 23 is fixed on the inflatable shaft 22.

[0021] The nickel strip coil is placed on the first coil fixing plate 23, and the front and back sides of the nickel strip are covered with protective paper tape. Under the traction of the post-process traction mechanism, the first coil fixing plate 23 rotates and discharges the nickel strip. The paper tape on the front side of the nickel strip passes through the first tape break detection component 7 and is wound by the upper paper tape winding material plate 3, and the paper tape on the back side passes through the second tape break detection component 8 and is wound by the lower paper tape winding material plate 4. During the traction and discharge process of the nickel strip, the tension of the nickel strip discharge is controlled by the magnetic powder tensioner 21 to discharge the nickel strip stably and at a uniform speed. Three sets of laser rangefinders 5 are set , respectively detect the diameters of the coils in the first coil fixing disk 23, the upper paper tape winding disk 3 and the lower paper tape winding disk 4, determine the thickness of the coil and feed the data back to the equipment, the equipment controls the speed of unwinding the nickel tape and the speed of winding the paper tape, the first broken tape detection component 7 and the second broken tape detection component 8 detect the front and back paper tapes respectively, when the paper tape breaks, the equipment stops running and alarms to prompt the operator to handle it. The advantage of this design is that it can realize the stable, uniform and high-precision unwinding of the nickel tape, thereby improving the accuracy of subsequent detection and stamping processes.

[0022] The upper paper tape winding material tray 3 includes a rotating drive component 31 and a second winding material fixing disk 32. The rotating drive component 31 is fixed on the first mounting stand 1, and the second winding material fixing disk 32 is fixed on the power output end of the rotating drive component 31. The structure of the lower paper tape winding material tray 4 is the same as that of the upper paper tape winding material tray 3.

[0023] One end of the paper tape is fixed on the second material roll fixing disk 32, and the second material roll fixing disk 32 is driven to rotate by the rotary drive assembly 31, so as to reel up the paper tape.

[0024] The belt connecting assembly 6 includes a first mounting bracket 61, a first supporting plate 62, a first conveying roller 63, a first cylinder 64, a first limiting roller 65, a second cylinder 66, a first pressure plate 67, a limiting baffle 68 and a first sensor 69. The first mounting bracket 61 is fixed on the first mounting stand 1, the first supporting plate 62 is fixed on the lower side of the first mounting bracket 61, the first conveying roller 63 is rotatably mounted on the first mounting bracket 61 and corresponds to the left and right sides of the first mounting bracket 61, the first cylinder 64 is fixed on the right side of the first mounting bracket 61 with the power output end facing upward, and the first limiting roller 65 is rotatably mounted on the power output end of the first cylinder 64. The output end corresponds to the top of the first conveying roller 63, the second cylinder 66 is fixed on the first mounting bracket 61 with the power output end facing downward, the first pressure plate 67 is fixed on the power output end of the second cylinder 66 and corresponds to the top of the first support plate 62, the limit baffle 68 is fixed on the first mounting bracket 61 and the lower end is in contact with the upper end surface of the first support plate 62, and a through hole 681 is provided in the middle of the lower end of the limit baffle 68. The second cylinder 66, the first pressure plate 67 and the limit baffle 68 are all arranged in two groups and correspond to the left and right sides of the first mounting bracket 61 respectively. The first sensor 69 is fixed on the first mounting bracket 61 and corresponds to the right side of the first support plate 62.

[0025] When the equipment is operating normally, the nickel strip enters the belt hole 681 of the limiting baffle 68 from the first conveying roller 63 at the right end of the first support plate 62, and is then conveyed to the subsequent process through the first conveying roller 63 at the left end. The belt hole 681 can limit the displacement of the nickel strip in the front and rear directions. During the conveying process, the first cylinder 64 drives the first limiting roller 65 to descend, limiting the displacement of the nickel strip in the up and down directions. When the nickel strip breaks, the first sensor 69 on the right senses the breakage, and the second cylinder 66 immediately drives the first pressing plate 67 to press down, pressing the nickel strip tightly against the first support plate 62, and sounding an alarm to prompt the operator to reconnect the strip.

[0026] The first conveying roller 63 includes a rotating shaft 631, a fixed stop ring 632 and an adjusting stop ring 633. The rotating shaft 631 is rotatably mounted on the first mounting bracket 61. The fixed stop ring 632 and the adjusting stop ring 633 are both fixed on the outer periphery of the rotating shaft 631. The adjusting stop ring 633 corresponds to the front side of the fixed stop ring 632 and is positionally adjustable along the front-to-back direction on the rotating shaft 631.

[0027] By adjusting the front-to-rear distance between the regulating retaining ring 633 and the fixed retaining ring 632, nickel strips of different widths can be transported.

[0028] The first broken belt detection assembly 7 includes a second mounting bracket 71, a second support plate 72, a second conveying roller 73, a third cylinder 74, a second limiting roller 75, a fourth cylinder 76, a second pressure plate 77 and a second sensor 78. The second mounting bracket 71 is fixed to the first mounting stand 1, the second support plate 72 is fixed to the second mounting bracket 71 and the length direction is consistent with the conveying direction of the material belt, the second conveying roller 73 is rotatably mounted on the second mounting bracket 71 and corresponds to the two sides of the second support plate 72, and the third cylinder 74 and the fourth cylinder 76 are both fixed. The second limiting roller 75 is rotatably mounted on the power output end of the third cylinder 74 and corresponds to between the second conveying roller 73 and the third cylinder 74. The second sensor 78 is fixed on the second mounting bracket 71 and corresponds to the upstream conveying side of the second pallet 72. The fourth cylinder 76 corresponds to the downstream conveying side of the second pallet 72. The second pressure plate 77 is fixed on the power output end of the fourth cylinder 76. The structure of the second broken belt detection component 8 is the same as that of the first broken belt detection component 7.

[0029] When the equipment is operating normally, the paper tape enters the second support plate 72 from a group of second conveying rollers 73, and is then conveyed to the subsequent process through another group of second conveying rollers 73. The second conveying rollers 73 can be connected to the power output end of the rotary drive assembly 31 through a synchronous belt to achieve synchronous operation with the second coil fixing disk 32 to better convey the paper tape. During the conveying process, the third cylinder 74 drives the second limiting roller 75 to descend to limit the displacement of the nickel tape in the up and down directions. When the nickel tape breaks, the second sensor 78 senses the breakage, and the fourth cylinder 76 immediately drives the second pressing plate 77 to press the paper tape against the second support plate 72, and alarms to prompt the operator to reconnect the tape.

[0030] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A nickel strip unwinding mechanism, characterized in that: The invention comprises a first mounting stand, a nickel tape unwinding tray, an upper paper tape winding tray, a lower paper tape winding tray, a laser rangefinder, a tape splicing assembly, a first tape break detection assembly and a second tape break detection assembly, wherein the nickel tape unwinding tray is fixed on the first mounting stand, the upper paper tape winding tray and the lower paper tape winding tray are both fixed on the first mounting stand, the upper paper tape winding tray and the lower paper tape winding tray correspond to the upper side and the left side of the nickel tape unwinding tray respectively, and the laser rangefinder is arranged in three groups, and the three groups of laser rangefinders correspond to the nickel tape unwinding tray, the upper paper tape winding tray and the lower paper tape winding tray respectively. On the other hand, the tape connecting assembly is fixedly arranged on the left side of the nickel tape unwinding material tray and corresponds to between the upper paper tape winding material tray and the lower paper tape winding material tray, the first tape break detection assembly is fixedly arranged between the nickel tape unwinding material tray and the upper paper tape winding material tray, the second tape break detection assembly is fixedly arranged between the nickel tape unwinding material tray and the lower paper tape winding material tray, the nickel tape unwinding material tray comprises a magnetic powder tensioner, an air shaft and a first coil fixing disk, the magnetic powder tensioner is fixed on the first mounting stand, the air shaft is rotatably mounted on the magnetic powder tensioner, and the first coil fixing disk is fixed on the air shaft.

2. A nickel strip unwinding mechanism according to claim 1, characterized in that: The upper paper tape winding material tray includes a rotating drive assembly and a second winding material fixing disk, the rotating drive assembly is fixed on the first mounting stand, the second winding material fixing disk is fixed to the power output end of the rotating drive assembly, and the structure of the lower paper tape winding material tray is the same as that of the upper paper tape winding material tray.

3. The nickel strip unwinding mechanism according to claim 1, characterized in that: The belt connection assembly includes a first mounting bracket, a first support plate, a first conveying roller, a first cylinder, a first limiting roller, a second cylinder, a first pressure plate, a limiting baffle and a first sensor. The first mounting bracket is fixed to the first mounting stand, the first support plate is fixed to the lower side of the first mounting bracket, the first conveying roller is rotatably mounted on the first mounting bracket and corresponds to the left and right sides of the first mounting bracket, the first cylinder is fixed to the right side of the first mounting bracket with the power output end facing upward, the first limiting roller is rotatably mounted at the power output end of the first cylinder and corresponds to Above the first conveying roller, the second cylinder is fixed on the first mounting bracket with the power output end facing downward, the first pressure plate is fixed on the power output end of the second cylinder and corresponds to the top of the first support plate, the limit baffle is fixed on the first mounting bracket and the lower end contacts the upper end surface of the first support plate, a through hole is provided in the middle part of the lower end of the limit baffle, the second cylinder, the first pressure plate and the limit baffle are each arranged in two groups and correspond to the left and right sides of the first mounting bracket respectively, and the first sensor is fixed on the first mounting bracket and corresponds to the right side of the first support plate.

4. A nickel strip unwinding mechanism according to claim 3, characterized in that: The first conveying roller includes a rotating shaft, a fixed stop ring and an adjustable stop ring. The rotating shaft is rotatably mounted on the first mounting bracket. The fixed stop ring and the adjustable stop ring are both fixed on the outer circumference of the rotating shaft. The adjustable stop ring corresponds to the front side of the fixed stop ring and is positionally adjustable along the front-to-back direction on the rotating shaft.

5. The nickel strip unwinding mechanism according to claim 1, characterized in that: The first broken belt detection component includes a second mounting bracket, a second support plate, a second conveying roller, a third cylinder, a second limiting roller, a fourth cylinder, a second pressure plate and a second sensor. The second mounting bracket is fixed on the first mounting stand. The second support plate is fixed on the second mounting bracket and its length direction is consistent with the conveying direction of the material belt. The second conveying roller is rotatably mounted on the second mounting bracket and corresponds to both sides of the second support plate. The third cylinder and the fourth cylinder are both fixed on the second mounting bracket and their power output ends are both facing the support plate. The second limiting roller is rotatably mounted at the power output end of the third cylinder and corresponds to between the second conveying roller and the third cylinder. The second sensor is fixed on the second mounting bracket and corresponds to the upstream side of the conveying of the second support plate. The fourth cylinder corresponds to the downstream side of the conveying of the second support plate. The second pressure plate is fixed at the power output end of the fourth cylinder. The structure of the second broken belt detection component is the same as that of the first broken belt detection component.

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