An automatic pole piece rolling equipment

Abstract

The present application relates to the technical field of battery manufacturing equipment, and particularly relates to a pole piece automatic rolling equipment, a base band passes through a first through hole of a punching mechanism, a second through hole of a rolling mechanism and a third through hole of a thickness measuring mechanism; the punching mechanism punches out a blank piece on an uncoated section of the base band and punches out a coated piece on a coated section; the rolling mechanism is used for rolling the coated section of the base band; a weighing mechanism is used for measuring a first weight of the coated piece and a second weight of the blank piece; the thickness measuring mechanism is used for measuring a first thickness of the coated section and measuring a second thickness of the uncoated section; a target thickness of the coated section after rolling of the rolling mechanism is calculated, and the rolling force of the rolling mechanism on the base band is adjusted in real time according to the target thickness, so as to adjust the first thickness of the coated section to a difference from the target thickness within a target range. In the present application, the pole piece automatic rolling equipment can automatically adjust the pressing force of the rolling mechanism on the coated section, and a coated section with higher quality can be manufactured.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing equipment technology, and in particular to an automatic electrode rolling equipment. Background Technology

[0002] Button batteries, also known as coin cells, are batteries shaped like small buttons, with a relatively large diameter and thin profile. With the continuous development of automation technology, more and more manufacturers are using automated assembly machines to assemble button batteries. A button battery consists of components such as a positive electrode casing, a negative electrode casing, a positive electrode sheet, a separator, a lithium electrode, a flat pad, and a spring. Before assembling a button battery, the positive and negative electrode sheets need to be prepared; these are typically cut into round pieces from the electrode strip using a punching mechanism.

[0003] The punching mechanism punches out electrode sheets from the baseband coated with battery paste, and the coating machine coats the battery paste onto the baseband. In the prior art, the coating machine can only coat the battery paste onto the baseband according to a pre-programmed procedure, and the thickness of the baseband coated with battery paste is fixed. When the thickness of the baseband coated with battery paste is not up to standard, the coating thickness of the coating machine needs to be manually adjusted, which has technical problems such as low automation and inconvenient adjustment. Summary of the Invention

[0004] This invention provides an automatic electrode rolling device to solve the technical problems in the prior art, such as the need for manual adjustment of the coating machine to adjust the electrode strip thickness.

[0005] An embodiment of the present invention provides an automatic electrode rolling device, which includes a punching mechanism, a rolling mechanism, a thickness measuring mechanism, a transfer mechanism, and a weighing mechanism. The punching mechanism is provided with a first through hole, the rolling mechanism is provided with a second through hole, and the thickness measuring mechanism is provided with a third through hole.

[0006] The baseband passes through the first through hole, the second through hole and the third through hole in sequence, and the baseband is provided with multiple coated sections spaced apart, with an uncoated section between two adjacent coated sections;

[0007] The punching mechanism is used to punch out blank sheets in the coating section and to punch out coated sheets in the coating section; the areas of the blank sheets and the coated sheets are both preset areas.

[0008] The thickness measuring mechanism is used to measure the first thickness of the coated section and the second thickness of the uncoated section;

[0009] The transfer mechanism is used to transfer the blank sheet and coated sheet on the punching mechanism to the weighing mechanism;

[0010] The weighing mechanism is used to weigh a first weight of the coated sheet and a second weight of the blank sheet;

[0011] According to the formula Calculate the target thickness of the coating section after rolling by the rolling mechanism; where d is the target thickness. Target compaction density, S is the preset area, d2 is the second thickness, G1 is the first weight, G2 is the second weight;

[0012] The rolling pressure of the rolling mechanism on the baseband is adjusted in real time according to the target thickness, so as to adjust the first thickness of the coating section to be within the target range as the difference between the coating section and the target thickness is within the target range.

[0013] Optionally, the punching mechanism includes a punching seat, a punching drive assembly, a punching base with a punching protrusion, and a punching top block with a punching through hole. The punching base is slidably mounted on the punching seat, the punching drive assembly is mounted on the punching seat and connected to the punching base, and the punching top block is mounted on the punching seat. The first through hole is disposed between the punching seat and the punching top block.

[0014] The punching drive assembly is used to drive the punching protrusion into and out of the punching through hole, so as to punch out coated sheets in the coated section and blank sheets in the uncoated section.

[0015] Optionally, the punching drive assembly includes a punching rotary drive, a punching shaft, a rocker arm, and a connecting rod slidably mounted on the punching seat; the punching shaft is rotatably mounted on the punching seat, and the punching rotary drive is mounted on the punching seat and connected to the punching shaft;

[0016] One end of the rocker arm is eccentrically mounted on the punching shaft, and the other end of the rocker arm is rotatably connected to the connecting rod; the end of the connecting rod away from the rocker arm is connected to the punching base.

[0017] Optionally, the rolling mechanism includes a support box, a rolling seat, a rolling lifting drive, a rolling rotation drive, a first gear, a second gear, a first pressure roller, and a second pressure roller. The rolling seat is installed at the output end of the rolling lifting drive, the rolling rotation drive is installed on the rolling seat, the first gear is installed at the output end of the rolling rotation drive, and the second gear is rotatably installed on the support box and meshes with the first gear. The first pressure roller is installed on the first gear, and the second pressure roller is installed on the second gear. The second through hole is provided between the first pressure roller and the second pressure roller.

[0018] Optionally, the transfer mechanism includes a transfer moving drive, a transfer lifting drive, a transfer carrier plate, and a transfer nozzle; the transfer lifting drive is installed at the output end of the transfer moving drive, the transfer carrier plate is installed at the output end of the transfer lifting drive, and the transfer nozzle is installed on the transfer carrier plate, the transfer nozzle being used to adsorb the blank sheet and the coated sheet.

[0019] Optionally, the thickness measuring mechanism includes a thickness measuring base, a thickness measuring sensor, a thickness measuring lifting drive, and a pressure head installed at the output end of the thickness measuring lifting drive. Both the thickness measuring lifting drive and the thickness measuring sensor are installed on the thickness measuring base.

[0020] The thickness measuring lifting drive is used to drive the pressure head to press the coating section onto the thickness measuring base, and the thickness measuring sensor is used to measure the thickness of the coating section located on the thickness measuring base.

[0021] Optionally, the automatic electrode rolling equipment further includes a buffer mechanism, a blanking punching mechanism, a blanking conveying mechanism, and a blanking transfer mechanism;

[0022] The buffer mechanism includes multiple buffer rollers spaced apart, and the blanking punching mechanism is provided with a fourth through hole;

[0023] The baseband sequentially passes through the first through hole, the second through hole, the third through hole, and around the multiple buffer rollers before passing through the fourth through hole;

[0024] The blanking and punching mechanism is used to punch out the target electrode sheet on the coating section, and the difference between the first thickness of the target electrode sheet and the target thickness is within the target range;

[0025] The feeding and transfer mechanism is used to transfer the target electrode sheet on the feeding and stamping mechanism to the feeding and conveying mechanism.

[0026] In this invention, the base strip sequentially passes through the first through hole of the punching mechanism, the second through hole of the rolling mechanism, and the third through hole of the thickness measuring mechanism; the punching mechanism punches out blank sheets in the uncoated section of the base strip and punches out coated sheets in the coated section; the rolling mechanism is used to roll the coated section of the base strip to compact the coated section; the transfer mechanism transfers the coated sheets from the punching mechanism to the weighing mechanism, which can measure the first weight G1 of the coated sheets; the transfer mechanism also transfers the blank sheets from the punching mechanism to the weighing mechanism, which can measure the second weight G2 of the blank sheets; the thickness measuring mechanism can measure the first thickness d1 of the coated section and the second thickness d2 of the uncoated section; the coated sheets and the blank sheets have equal areas, both S, so the surface density ρ1 of the coated section can be calculated, ρ1 = (G1 - G2) / S; the compaction density ρ = ρ1 / (d - G2) / S. d2), where d is the target thickness and compaction density is the target amount, thus the target thickness of the coating section after roll pressing can be calculated as follows: The actual detected first thickness d1 of the coating segment is compared with the target thickness d, and the result is fed back to the rolling mechanism. The rolling mechanism adjusts the rolling pressure on the coating segment according to the feedback until the difference between the first thickness d1 and the target thickness d is within the target range. In this invention, the automatic electrode rolling equipment can automatically adjust the pressing force of the rolling mechanism on the coating segment, enabling the automatic electrode rolling equipment to produce coating segments of higher quality. Furthermore, the automatic electrode rolling equipment has a high degree of automation and high efficiency. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of an automatic electrode rolling equipment provided in an embodiment of the present invention;

[0029] Figure 2 This is a partial structural schematic diagram of an automatic electrode rolling equipment provided in an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the punching mechanism provided in an embodiment of the present invention;

[0031] Figure 4 This is a partial structural schematic diagram of a punching mechanism provided in an embodiment of the present invention;

[0032] Figure 5This is a partial structural schematic diagram of a roller pressing mechanism provided in an embodiment of the present invention;

[0033] Figure 6 This is a partial structural schematic diagram of a roller pressing mechanism provided in an embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the thickness measuring base provided in an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of a transfer mechanism provided in an embodiment of the present invention;

[0036] Figure 9 This is a schematic diagram of the structure of the baseband, blank wafer, and coated wafer provided in an embodiment of the present invention.

[0037] The reference numerals in the accompanying drawings are as follows:

[0038] 1. Punching mechanism; 11. Punching seat; 12. Punching drive assembly; 121. Punching rotary drive component; 122. Punching shaft; 123. Rocker arm; 124. Connecting rod; 13. Punching base; 14. Punching top block; 141. Punching through hole; 2. Rolling mechanism; 21. Support box; 22. Rolling seat; 23. Rolling rotary drive component; 24. First gear; 25. Second gear; 26. First pressure roller; 27. Second pressure roller; 3. Thickness measuring mechanism; 31 1. Thickness measuring base; 32. Thickness measuring sensor; 33. Thickness measuring lifting drive; 34. Pressure head; 4. Transfer mechanism; 41. Transfer moving drive; 42. Transfer lifting drive; 43. Transfer carrier plate; 44. Transfer suction nozzle; 5. Weighing mechanism; 6. Buffer mechanism; 7. Unloading punching mechanism; 8. Unloading conveying mechanism; 9. Unloading transfer mechanism; 10. Base belt; 101. Coating section; 102. Uncoated section; 103. Coated sheet; 104. Blank sheet. Detailed Implementation

[0039] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0040] like Figure 1 and Figure 2 As shown, an automatic electrode rolling device provided in an embodiment of the present invention includes a punching mechanism 1, a rolling mechanism 2, a thickness measuring mechanism 3, a transfer mechanism 4, and a weighing mechanism 5. The punching mechanism 1 is provided with a first through hole, the rolling mechanism 2 is provided with a second through hole, and the thickness measuring mechanism 3 is provided with a third through hole.

[0041] The baseband 10 passes through the first through hole, the second through hole and the third through hole in sequence, and the baseband 10 is provided with a plurality of coated sections 101 spaced apart, and an uncoated section 102 is provided between two adjacent coated sections 101.

[0042] The punching mechanism 1 is used to punch out blank sheet 104 in the coating section 101 and to punch out coated sheet 103 in the coating section 101; the areas of the blank sheet 104 and the coated sheet 103 are both preset areas.

[0043] The thickness measuring mechanism 3 is used to measure the first thickness of the coated section 101 and the second thickness of the uncoated section 102;

[0044] The transfer mechanism 4 is used to transfer the blank sheet 104 and the coated sheet 103 on the punching mechanism 1 to the weighing mechanism 5;

[0045] The weighing mechanism 5 is used to weigh the first weight of the coated sheet 103 and the second weight of the blank sheet 104.

[0046] According to the formula Calculate the target thickness of the coating section 101 after rolling by the rolling mechanism 2; where d is the target thickness. Target compaction density (known quantity), S is the preset area (known quantity), d2 is the second thickness, G1 is the first weight, and G2 is the second weight;

[0047] The rolling pressure of the rolling mechanism 2 on the base belt 10 is adjusted in real time according to the target thickness, so as to adjust the first thickness of the coating section 101 to be within the target range as the difference between the coating section 101 and the target thickness is within the target range.

[0048] In this design, multiple coated sections 101 and multiple uncoated sections 102 are spaced apart on the baseband 10. An uncoated section 102 is located between every two adjacent coated sections 101, and a coated section 101 is located between every two adjacent uncoated sections 102. The coated sections 101 are formed by applying battery paste to the baseband 10, and the uncoated sections 102 are the portions of the baseband 10 that are not coated with battery paste. The coated sheets 103 and blank sheets 104 cut by the punching mechanism 1 have the same dimensions, thus ensuring that the coated sheets 103 and blank sheets 104 have the same preset area.

[0049] In this invention, the base strip 10 sequentially passes through the first through hole of the punching mechanism 1, the second through hole of the rolling mechanism 2, and the third through hole of the thickness measuring mechanism 3; the punching mechanism 1 punches out blank sheets 104 in the uncoated section 102 of the base strip 10, and punches out coated sheets 103 in the coated section 101; the rolling mechanism 2 is used to roll the coated section 101 of the base strip 10, thereby compacting the coated section 101; the transfer mechanism 4 transfers the coated sheets 103 on the punching mechanism 1 to the weighing mechanism 5, which can measure... The first weight G1 of the coated sheet 103 is measured; the transfer mechanism 4 also transfers the blank sheet 104 on the punching mechanism 1 to the weighing mechanism 5, which can measure the second weight G2 of the blank sheet 104; the thickness measuring mechanism 3 can measure the first thickness d1 of the coated section 101 and the second thickness d2 of the uncoated section 102; the areas of the coated sheet 103 and the blank sheet 104 are equal and both S, so the surface density ρ1 of the coated section 101 can be calculated, ρ1=(G1-G2) / S; the compaction density ρ=ρ1 / (d-d2), where d is the target thickness and the compaction density is the target amount, so the target thickness of the coated section 101 after rolling can be calculated. The first thickness d1 of the actually detected coating section 101 is compared with the target thickness d, and the result is fed back to the rolling mechanism 2. The rolling mechanism 2 adjusts the rolling pressure on the coating section 101 according to the feedback until the difference between the first thickness d1 and the target thickness d is within the target range. In this invention, the automatic electrode rolling equipment can automatically adjust the pressing force of the rolling mechanism 2 on the coating section 101, so that the automatic electrode rolling equipment can produce coating sections 101 of higher quality, and the automatic electrode rolling equipment has a high degree of automation and high efficiency.

[0050] In one embodiment, such as Figure 3 and Figure 4 As shown, the punching mechanism 1 includes a punching seat 11, a punching drive assembly 12, a punching base 13 with a punching protrusion (not shown in the figure), and a punching top block 14 with a punching through hole 141. The punching base 13 is slidably mounted on the punching seat 11, and the punching drive assembly 12 is mounted on the punching seat 11 and connected to the punching base 13. The punching top block 14 is mounted on the punching seat 11, and the first through hole is disposed between the punching seat 11 and the punching top block 14.

[0051] The punching drive assembly 12 is used to drive the punching protrusion into and out of the punching through hole 141, so as to punch out coated sheet 103 in the coating section 101 and to punch out blank sheet 104 in the uncoated section 102.

[0052] The punching drive assembly 12 includes, but is not limited to, pneumatic cylinders, hydraulic cylinders, lead screw and nut assemblies, etc. The punching protrusion and the punching through hole 141 determine the size of the blank sheet 104 and the coated sheet 103.

[0053] Specifically, the punching drive assembly 12 drives the punching base 13 to move toward the punching top block 14, and the punching protrusion is inserted into the punching through hole 141, so that blank sheet 104 can be punched out in the uncoated section 102 and coated sheet 103 can be punched out in the coated section 101.

[0054] In this embodiment, the punching mechanism 1 has a compact structure and occupies little space.

[0055] In one embodiment, such as Figure 3 As shown, the punching drive assembly 12 includes a punching rotary drive 121, a punching shaft 122, a rocker arm 123, and a connecting rod 124 slidably mounted on the punching seat 11; the punching shaft 122 is rotatably mounted on the punching seat 11, and the punching rotary drive 121 is mounted on the punching seat 11 and connected to the punching shaft 122;

[0056] One end of the rocker arm 123 is eccentrically mounted on the punching shaft 122, and the other end of the rocker arm 123 is rotatably connected to the connecting rod 124; the end of the connecting rod 124 away from the rocker arm 123 is connected to the punching base 13.

[0057] The punching rotary drive 121 includes, but is not limited to, a combination of a motor and a reducer; the rocker arm 123 can be eccentrically connected to the punching shaft 122 via an eccentric shaft; the connecting rod 124 can be slidably mounted on the punching seat 11 via a guide rail slider assembly, a guide rod sleeve assembly, etc.

[0058] Specifically, the punching rotation drive 121 drives the punching shaft 122 to rotate, and the punching shaft 122 drives the connecting rod 124 and the punching base 13 to move up and down through the rocker arm 123, so that the punching protrusion enters and exits the punching through hole 141.

[0059] In this embodiment, the punching drive assembly 12 has a large driving force, and the punching drive assembly 12 has a compact structure and occupies little space.

[0060] In one embodiment, such as Figure 5 and Figure 6As shown, the roller pressing mechanism 2 includes a support box 21, a roller pressing seat 22, a roller pressing lifting drive (not shown in the figure), a roller pressing rotating drive 23, a first gear 24, a second gear 25, a first pressure roller 26, and a second pressure roller 27. The roller pressing seat 22 is installed on the output end of the roller pressing lifting drive, the roller pressing rotating drive 23 is installed on the roller pressing seat 22, the first gear 24 is installed on the output end of the roller pressing rotating drive 23, and the second gear 25 is rotatably installed on the support box 21 and meshes with the first gear 24. The first pressure roller 26 is installed on the first gear 24, and the second pressure roller 27 is installed on the second gear 25. The second through hole is provided between the first pressure roller 26 and the second pressure roller 27.

[0061] The roller pressing lifting drive includes, but is not limited to, pneumatic cylinders, hydraulic cylinders, and lead screw and nut assemblies; the roller pressing rotation drive 23 includes, but is not limited to, motors; the roller pressing lifting drive can drive the first gear 24 to move away from or towards the second gear 25, thereby adjusting the distance between the first pressure roller 26 and the second pressure roller 27 (that is, adjusting the roller pressure between the first pressure roller 26 and the second pressure roller 27); it should be noted that the vertical movement distance of the first gear 24 is very small, so that the first gear 24 and the second gear 25 always remain in a meshed state.

[0062] Specifically, when the first thickness of the coating section 101 is detected to be too large, the roller pressing lifting drive causes the roller pressing seat to move towards the second pressure roller 27, increasing the roller pressure between the first pressure roller 26 and the second pressure roller 27. The roller pressing mechanism 2 can then roll out a coating section 101 with a larger surface density, meaning the first thickness of the coating section 101 will decrease. When the first thickness of the coating section 101 is detected to be too small, the roller pressing lifting drive causes the roller pressing seat to move away from the second pressure roller 27, decreasing the roller pressure between the first pressure roller 26 and the second pressure roller 27. The roller pressing mechanism 2 can then roll out a coating section 101 with a smaller surface density, meaning the first thickness of the coating section 101 will increase.

[0063] In one embodiment, such as Figure 8 As shown, the transfer mechanism 4 includes a transfer moving drive 41, a transfer lifting drive 42, a transfer carrier plate 43, and a transfer nozzle 44; the transfer lifting drive 42 is installed at the output end of the transfer moving drive 41, the transfer carrier plate 43 is installed at the output end of the transfer lifting drive 42, and the transfer nozzle 44 is installed on the transfer carrier plate 43. The transfer nozzle 44 is used to adsorb the blank sheet 104 and the coated sheet 103.

[0064] The transfer and movement drive component 41 and the transfer and lifting drive component 42 include, but are not limited to, pneumatic cylinders, hydraulic cylinders, lead screw and nut assemblies, belt assemblies, etc.

[0065] The transfer moving drive 41 can drive the transfer lifting drive 42, the transfer carrier plate 43, and the transfer suction nozzle 44 to move horizontally, so that the transfer suction nozzle 44 can move between the punching mechanism 1 and the weighing mechanism 5; the transfer lifting drive 42 can drive the transfer suction nozzle 44 to move vertically through the transfer carrier plate 43, so that the transfer suction nozzle 44 can pick up or release the blank sheet 104 and the coated sheet 103.

[0066] In this embodiment, the transfer mechanism 4 has a compact structure and occupies little space.

[0067] In one embodiment, such as Figure 7 As shown, the thickness measuring mechanism 3 includes a thickness measuring base 31, a thickness measuring sensor 32, a thickness measuring lifting drive 33, and a pressure head 34 installed at the output end of the thickness measuring lifting drive 33. The thickness measuring lifting drive 33 and the thickness measuring sensor 32 are both installed on the thickness measuring base 31.

[0068] The thickness measuring lifting drive 33 is used to drive the pressure head 34 to press the coating section 101 onto the thickness measuring base 31, and the thickness measuring sensor 32 is used to measure the thickness of the coating section 101 located on the thickness measuring base 31.

[0069] The thickness measuring lifting drive 33 includes, but is not limited to, pneumatic cylinders, hydraulic cylinders, and linear motors, and the pressure head 34 and the thickness measuring sensor 32 are both located above the thickness measuring base 31.

[0070] Specifically, the thickness sensor 32 is equipped with a telescopic rod. When the telescopic rod abuts against the thickness measuring base 31, the distance between the thickness sensor 32 and the thickness measuring base 31 can be measured. After the thickness measuring lifting drive 33 drives the pressure head 34 to press the coating section 101 tightly and adhere it to the thickness measuring base 31, the telescopic rod of the thickness sensor 32 moves down and abuts against the coating section 101, thereby allowing the measurement of the distance between the coating section 101 and the thickness sensor 32. The distance between the thickness sensor 32 and the thickness measuring base 31 minus the distance between the coating section 101 and the thickness measuring base 31 is the measurement distance. The distance between the thickness sensors 32 can be used to obtain the first thickness of the coated section 101. Similarly, after the thickness measuring lifting drive 33 drives the pressure head 34 to press the uncoated section 102 against the thickness measuring base 31, the telescopic rod of the thickness sensor 32 moves down and abuts against the uncoated section 102, thereby measuring the distance between the uncoated section 102 and the thickness sensor 32. The second thickness of the uncoated section 102 can be obtained by subtracting the distance between the thickness sensor 32 and the thickness measuring base 31 from the distance between the thickness sensor 32 and the thickness measuring base 31. In this embodiment, the thickness measuring mechanism 3 has high measurement accuracy.

[0071] In one embodiment, such as Figure 1 As shown, the automatic electrode rolling equipment also includes a buffer mechanism 6, a blanking punching mechanism 7, a blanking conveying mechanism 8, and a blanking transfer mechanism 9;

[0072] The buffer mechanism 6 includes multiple buffer rollers spaced apart, and the blanking punching mechanism 7 is provided with a fourth through hole;

[0073] The baseband 10 passes sequentially through the first through hole, the second through hole, the third through hole, and around the multiple buffer rollers before passing through the fourth through hole;

[0074] The blanking and punching mechanism 7 is used to punch out the target electrode sheet on the coating section 101, and the difference between the first thickness of the target electrode sheet and the target thickness is within the target range;

[0075] The unloading and transfer mechanism 9 is used to transfer the target electrode sheet on the unloading and stamping mechanism 7 to the unloading and conveying mechanism 8.

[0076] The structure and principle of the blanking and punching mechanism 7 are the same as those of the punching and cutting mechanism 1, and will not be described in detail here; the structure and principle of the blanking and transferring mechanism 9 are the same as those of the transferring mechanism 4, and will not be described in detail here; the blanking and conveying mechanism 8 includes, but is not limited to, a conveyor belt.

[0077] Specifically, the buffer mechanism 6 can buffer the longer baseband 10. During the process of the baseband 10 passing through the fourth through hole, the blanking and punching mechanism 7 can punch out the target electrode sheet on the coating section 101. The difference between the first thickness of the target electrode sheet and the target thickness is within the target range, that is, the thickness of the target electrode sheet meets the requirements. The blanking and transfer mechanism 9 transfers the target electrode sheet on the blanking and punching mechanism 7 to the blanking and conveying mechanism 8. The blanking and conveying mechanism 8 can convey the target electrode sheet to the blanking position.

[0078] In this embodiment, the automatic electrode rolling equipment can also perform automatic punching and automatic unloading of the target electrode sheet, further improving the automation level of the automatic electrode rolling equipment.

[0079] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. An automatic electrode rolling equipment, characterized in that, It includes a punching mechanism, a rolling mechanism, a thickness measuring mechanism, a transfer mechanism, and a weighing mechanism. The punching mechanism has a first through hole, the rolling mechanism has a second through hole, and the thickness measuring mechanism has a third through hole. The baseband passes through the first through hole, the second through hole and the third through hole in sequence, and the baseband is provided with multiple coated sections spaced apart, with an uncoated section between two adjacent coated sections; The punching mechanism is used to punch out blank sheets in the coating section and to punch out coated sheets in the coating section; the areas of the blank sheets and the coated sheets are both preset areas. The thickness measuring mechanism is used to measure the first thickness of the coated section and the second thickness of the uncoated section; The transfer mechanism is used to transfer the blank sheet and coated sheet on the punching mechanism to the weighing mechanism; The weighing mechanism is used to weigh a first weight of the coated sheet and a second weight of the blank sheet; According to the formula Calculate the target thickness of the coating section after rolling by the rolling mechanism; where d is the target thickness. Target compaction density, S is the preset area, d2 is the second thickness, G1 is the first weight, G2 is the second weight; The rolling pressure of the rolling mechanism on the baseband is adjusted in real time according to the target thickness, so as to adjust the first thickness of the coating section to be within the target range as the difference between the coating section and the target thickness is within the target range.

2. The automatic electrode rolling equipment according to claim 1, characterized in that, The punching mechanism includes a punching seat, a punching drive assembly, a punching base with a punching protrusion, and a punching top block with a punching through hole. The punching base is slidably mounted on the punching seat, the punching drive assembly is mounted on the punching seat and connected to the punching base, and the punching top block is mounted on the punching seat. The first through hole is disposed between the punching seat and the punching top block. The punching drive assembly is used to drive the punching protrusion into and out of the punching through hole, so as to punch out coated sheets in the coated section and blank sheets in the uncoated section.

3. The automatic electrode rolling equipment according to claim 2, characterized in that, The punching drive assembly includes a punching rotary drive, a punching shaft, a rocker arm, and a connecting rod slidably mounted on the punching seat; the punching shaft is rotatably mounted on the punching seat, and the punching rotary drive is mounted on the punching seat and connected to the punching shaft; One end of the rocker arm is eccentrically mounted on the punching shaft, and the other end of the rocker arm is rotatably connected to the connecting rod; the end of the connecting rod away from the rocker arm is connected to the punching base.

4. The automatic electrode rolling equipment according to claim 1, characterized in that, The rolling mechanism includes a support box, a rolling seat, a rolling lifting drive, a rolling rotation drive, a first gear, a second gear, a first pressure roller, and a second pressure roller. The rolling seat is installed at the output end of the rolling lifting drive, the rolling rotation drive is installed on the rolling seat, the first gear is installed at the output end of the rolling rotation drive, and the second gear is rotatably installed on the support box and meshes with the first gear. The first pressure roller is installed on the first gear, and the second pressure roller is installed on the second gear. A second through hole is provided between the first pressure roller and the second pressure roller.

5. The automatic electrode rolling equipment according to claim 1, characterized in that, The transfer mechanism includes a transfer moving drive, a transfer lifting drive, a transfer carrier plate, and a transfer nozzle; the transfer lifting drive is installed at the output end of the transfer moving drive, the transfer carrier plate is installed at the output end of the transfer lifting drive, and the transfer nozzle is installed on the transfer carrier plate. The transfer nozzle is used to adsorb the blank sheet and the coated sheet.

6. The automatic electrode rolling equipment according to claim 1, characterized in that, The thickness measuring mechanism includes a thickness measuring base, a thickness measuring sensor, a thickness measuring lifting drive, and a pressure head installed at the output end of the thickness measuring lifting drive. Both the thickness measuring lifting drive and the thickness measuring sensor are installed on the thickness measuring base. The thickness measuring lifting drive is used to drive the pressure head to press the coating section onto the thickness measuring base, and the thickness measuring sensor is used to measure the thickness of the coating section located on the thickness measuring base.

7. The automatic electrode rolling equipment according to claim 1, characterized in that, The automatic electrode rolling equipment also includes a buffer mechanism, a blanking punching mechanism, a blanking conveying mechanism, and a blanking transfer mechanism; The buffer mechanism includes multiple buffer rollers spaced apart, and the blanking punching mechanism is provided with a fourth through hole; The baseband sequentially passes through the first through hole, the second through hole, the third through hole, and around the multiple buffer rollers before passing through the fourth through hole; The blanking and punching mechanism is used to punch out the target electrode sheet on the coating section, and the difference between the first thickness of the target electrode sheet and the target thickness is within the target range; The feeding and transfer mechanism is used to transfer the target electrode sheet on the feeding and stamping mechanism to the feeding and conveying mechanism.

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