An automatic die cutting machine

Abstract

The utility model discloses an automatic die -cutting machine, including cutting platform, and cutting platform has unwinding subassembly, unwinding rectification module, dust removal module, two visual inspection modules, cutting module, the visual inspection end of two visual inspection modules is respectively towards the front and back of the transmission material roll, still include negative pressure transmission line, length detection sensor, mechanical arm, positioning rectification detection subassembly, die -cutting platform, qualified recovery device and defective product recovery device, and the front end of negative pressure transmission line is connected with cutting module, and length detection sensor sets up in the middle part or rear end of negative pressure transmission line, and the gripper of mechanical arm is used for clamping or putting into the product on negative pressure transmission line, positioning rectification detection subassembly, die -cutting platform or qualified product collection device, through above -mentioned setting, can carry out the preliminary detection defective product to the slice that material roll cutting comes out, according to the detection situation carries out die -cutting, recycling or abandonment, to improve production quality and work efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of all-solid-state battery production equipment, specifically relating to an automatic die-cutting machine. Background Technology

[0002] In the production stage of all-solid-state batteries, the electrode rolls produced in the previous process need to be cut, and then die-cut.

[0003] Chinese patent CN119115560A discloses a high-efficiency processing equipment for power electrode tabs. The equipment unwinds and corrects the material through an unwinding and correction module, then uses a straightening module to level the roll. After the shaped roll is cleaned by a dust extraction module, it is coated with adhesive and pressed together before being cut by a cutting module to form metal sheets (electrode sheets). Finally, the surface of the metal sheets is treated by a gripping module, a processing module, and a transfer module to form electrode tabs, and then the sheets are transferred and collected in a collection module.

[0004] After conducting research based on existing patents, we found that after the roll material is cut, there are usually cases where the dimensional accuracy is not accurate enough, and there are also problems such as insufficient length, sufficient length but unsatisfactory appearance, or both. Therefore, the produced electrode sheets usually need to be cut or repaired a second time, which reduces production quality and efficiency. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an automatic die-cutting machine that can perform preliminary inspection of the slices cut from the material roll to detect defective products, and then perform further die-cutting, recycling or disposal based on the inspection results, so as to improve production quality and work efficiency.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] An automatic die-cutting machine includes a cutting platform, which has an unwinding assembly, an unwinding correction module, a dust removal module, and a cutting module. The cutting platform also includes two vision inspection modules located between the unwinding assembly and the cutting module, with their inspection ends facing the front and back of the conveyed roll, respectively. The automatic die-cutting machine further includes a negative pressure transmission line, a length detection sensor, a robotic arm, a positioning correction detection assembly, a die-cutting platform, a qualified product collection device, and a defective product collection device. The front end of the negative pressure transmission line is connected to the cutting module and is located below the cutting end of the cutting module. The length detection sensor is located in the middle or rear of the negative pressure transmission line. The positioning correction detection assembly, the die-cutting platform, the qualified product collection device, and the defective product collection device are all located around the negative pressure transmission line. The grippers of the robotic arm are used to grip or place products on the negative pressure transmission line, the positioning correction detection assembly, the die-cutting platform, or the qualified product collection device.

[0008] Furthermore, the negative pressure transmission line includes a conveyor belt with evenly distributed air holes on its surface. Baffles are provided on both sides of the conveyor belt to form a relatively sealed air cavity inside the conveyor belt. The baffles are provided with ventilation ports, which are connected to an air pump through pipes.

[0009] Furthermore, the length detection sensor is an infrared sensor, which is mounted on the middle of the top surface of the negative pressure transmission line via a plate, with the sensing end of the infrared sensor facing the transmission surface of the negative pressure transmission line.

[0010] Furthermore, the number of infrared sensors is two, and the two infrared sensors are spaced apart along the transmission direction of the negative pressure transmission line.

[0011] Furthermore, the positioning correction detection component includes a correction platform and a correction visual detector; the correction platform is installed on one side of the negative pressure transmission line, the correction platform has an internal cavity, and the top surface of the correction platform has several evenly distributed suction holes, the internal cavity is connected to an air pump through a pipe; the correction visual detector is a visual camera, the correction visual detector is installed above the correction platform, and the imaging end of the correction visual detector faces the correction platform.

[0012] Furthermore, the defective product recycling device includes a support platform, on which a recycling box and a lateral moving component are provided. The recycling box is located below the lateral moving component, and the moving end of the lateral moving component moves toward the tail end of the negative pressure transmission line. The moving end of the lateral moving component is provided with a bracket, and the bracket is provided with a lifting component. The lifting end of the lifting component is provided with a connecting frame, and the connecting frame is provided with several suction cups. The suction cups are connected to a vacuum pump through pipes. After the suction cups pick up the defective products, they move to the top of the recycling box via the lateral moving component, and the suction action is released by the suction cups to place the defective products into the recycling box.

[0013] Furthermore, the cutting platform is also equipped with two vision inspection modules, which are located between the unwinding assembly and the cutting module. The vision inspection ends of the two vision inspection modules face the front and back of the conveyed roll, respectively.

[0014] Furthermore, the cutting platform is also provided with a traction component, which is located between the unwinding component and the cutting module, and is positioned close to the cutting module. The traction component includes a frame bracket, which is provided with a fixed roller. A lifting cylinder is provided at the top of the frame bracket, with the extended end of the lifting cylinder facing the fixed roller. A rotating component is provided at the extended end of the lifting cylinder, and the rotating end of the rotating component is connected to a traction roller. The traction roller is opposite to and parallel to the fixed roller.

[0015] This utility model has the following beneficial effects:

[0016] The automatic die-cutting machine of this utility model is equipped with a cutting platform. It uses an unwinding component and a traction component to feed the material belt forward and uses a cutting module to cut the material belt into fixed-length slices. The vision inspection module of the cutting platform can perform CCD vision inspection on the front and back of the material belt to determine whether there are defects in the cut slices. After cutting, the slices are conveyed forward via a negative pressure transmission line. Simultaneously, a length detection sensor monitors the length of the conveyed slices to determine if they meet length requirements, thus filtering out three types of slices: slices with acceptable length and no defects (qualified products), slices with acceptable length but defects (defective products), and slices with unacceptable length (scrap products). A robotic arm picks up qualified products and moves them to a positioning and correction detection component for positioning and correction before transferring them to a die-cutting platform for die-cutting. Finally, the qualified products are placed in a qualified product collection device. Defective products are recycled by a defective product recycling device. Scrap products with unacceptable length are moved out of the equipment via the negative pressure transmission line. This process automatically cuts and filters different slices for corresponding processing. Based on the detection results, further die-cutting, recycling, or disposal are performed. Compared to existing technologies, this method has the beneficial effects of improving production quality and work efficiency. Attached Figure Description

[0017] Figure 1 This is a side view of the overall structure of the cutting platform of this utility model.

[0018] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0019] Figure 3 This is a three-dimensional view of the overall structure of the cutting platform of this utility model.

[0020] Figure 4 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 5 for Figure 4 A magnified view of a section at point B in the middle.

[0022] In the diagram: 1. Cutting platform; 11. Unwinding assembly; 12. Unwinding and correction module; 13. Tension control assembly; 14. Dust removal module; 15. Vision inspection module; 16. Traction assembly; 161. Frame bracket; 162. Fixed roller; 163. Rotating component; 164. Traction roller; 165. Lifting cylinder; 17. Cutting module; 2. Negative pressure transmission line; 21. Conveyor belt; 22. Air hole; 3. Length detection sensor; 4. Robotic arm; 5. Positioning and correction detection assembly; 51. Including correction platform; 511. Suction hole; 52. Correction vision detector; 6. Die-cutting platform; 7. Qualified product collection device; 8. Defective product recycling device; 81. Support platform; 82. Recycling box; 83. Lateral moving component; 84. Bracket; 85. Lifting component; 86. Connecting frame; 87. Suction cup; 9. Material roll; 91. Material strip. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Terms such as “upper,” “inner,” “middle,” “left,” “right,” and “one” used in this specification are merely for clarity of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the present invention.

[0024] An automatic die-cutting machine, such as Figures 1 to 3 As shown, it mainly includes a cutting platform 1, which has an unwinding assembly 11, an unwinding and correction module 12, a tension control assembly 13, a dust removal module 14, two vision inspection modules 15, a traction assembly 16, and a cutting module 17, which together complete the functions of slicing the material roll 9 and removing defects.

[0025] The unwinding assembly 11 is used to place and unwind the material roll 9; the unwinding correction module 12 is used to adjust the unwinding position according to sensor feedback; the tension control assembly 13 is used to control the tension of the material strip 91 by adjusting the air pressure; the dust removal module 14 is used to perform preliminary dust removal on the material strip 91, which affects the subsequent visual inspection module 15; the visual inspection module 15 can be a CCD detector, and the two visual inspection modules 15 are located between the unwinding assembly 11 and the cutting module 17. The visual inspection ends of the two visual inspection modules 15 face the front and back of the conveyed material roll 9, respectively. The visual inspection module 15 is used to detect whether there are defects on the front and back of the material strip 91, and transmits the detected defect location information to the system. The system records the defect location information and controls the position of the defective slices cut by the cutting film on the negative pressure transmission line 2, so as to facilitate the tracking of defective slices (slices with defects).

[0026] The traction assembly 16 is disposed between the unwinding assembly 11 and the cutting module 17, and is positioned close to the cutting module 17. The traction assembly 16 includes a frame bracket 161, on which a fixed roller 162 is disposed. A lifting cylinder 165 is disposed on the top of the frame bracket 161. The lifting cylinder 165 can be a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder. The extended end of the lifting cylinder 165 faces the fixed roller 162. A rotating component 163 is disposed on the extended end of the lifting cylinder 165. The rotating component 163 can be a servo motor, a control motor, or a stepper motor. The rotating end of the rotating component 163 is connected to a traction roller 164. The traction roller 164 is opposite to and parallel to the fixed roller 162. The lifting cylinder 165 controls the traction roller 164 to abut against the fixed roller 162 to clamp the material strip 91 of the material roll 9. The rotating component 163 controls the rotation of the traction roller 164, thereby providing forward transmission power for the material strip 91.

[0027] The cutting module 17 cuts the material strip 91 according to the cutting instructions transmitted by the system. According to actual production, the cutting module 17 will cut the material strip 91 intermittently according to the control rhythm instructions of the system (such as cutting once every 1 second or cutting once every 1.5 seconds) to achieve the function of cutting slices of a certain length. Therefore, the slices cut by the module may include slices with qualified length and no defects (qualified products), slices with qualified length but defects (defective products), or slices with unqualified length (scrap products). Therefore, the slices cut by the cutting module 17 still need to be positioned and corrected before die-cutting, defective products are recycled, and scrap products are removed from the equipment.

[0028] like Figures 1 to 5As shown, the automatic die-cutting machine of this utility model also includes a negative pressure transmission line 2, a length detection sensor 3, a robotic arm 4, a positioning and correction detection component 5, a die-cutting platform 6, a qualified product collection device 7, and a defective product recycling device 8. The front end of the negative pressure transmission line 2 is connected to the cutting module 17, and the front end of the negative pressure transmission line 2 is located below the cutting end of the cutting module 17. The length detection sensor 3 is set in the middle or rear end of the negative pressure transmission line 2 and is used to detect the length of the cut slices. The positioning and correction detection component 5, the die-cutting platform 6, the qualified product collection device 7, and the recycling device are all set around the negative pressure transmission line 2, and the negative pressure transmission line 2, the positioning and correction detection component 5, the die-cutting platform 6, and the qualified product collection device 7 surround the robotic arm 4. The robotic arm 4 is a multi-axis robot. The gripper of the robotic arm 4 is used to grip the qualified products on the negative pressure transmission line 2, place them in the positioning and correction detection component 5 for positioning and correction, then grip them in the die-cutting platform for die-cutting, and finally place them in the qualified product collection device 7.

[0029] In this embodiment, the negative pressure transmission line 2 includes a conveyor belt 21. The surface of the conveyor belt 21 is provided with uniformly distributed air holes 22. Baffles are provided on both sides of the conveyor belt 21 to form a relatively sealed air chamber inside. The baffles are provided with ventilation ports, which are connected to a vacuum pump via pipes. Therefore, the slices on the conveyor belt 21 can be stably adsorbed onto the surface of the conveyor belt 21 by the suction negative pressure of the air holes 22, while reducing external interference.

[0030] In this embodiment, the length detection sensor 3 is an infrared sensor. The infrared sensor is mounted on the middle of the top surface of the negative pressure transmission line 2 via a plate, with its sensing end facing the top surface of the conveyor belt 21. It is used to detect the length of the slices on the conveyor belt 21. Timing begins when the slice is detected by the infrared sensor and stops when it completely leaves the infrared sensing line of the sensor, thus obtaining the detection time of the slice passing through the infrared sensor. Since the transmission on the conveyor belt 21 is uniform, the length of the slice can be obtained through system calculation. In this embodiment, two infrared sensors are used, spaced apart along the transmission direction of the negative pressure transmission line 2, to repeatedly detect the length of the slices on the conveyor belt 21, thereby improving the accuracy of slice length detection.

[0031] In this embodiment, the positioning and correction detection component 5 includes a correction platform 51 and a correction vision detector 52, used to correct the position of the qualified product slice by combining CCD detection. The correction platform is installed on one side of the negative pressure transmission line 2. The correction platform has an internal cavity, and several evenly distributed suction holes 511 are opened on the top surface of the correction platform. The internal cavity is connected to the vacuum pump through a pipe. The correction vision detector 52 is a CCD detector, installed above the correction platform, with the imaging end of the correction vision detector 52 facing the correction platform. After the robotic arm 4 places the qualified product slice on the negative pressure transmission line 2 onto the correction platform, the qualified product slice is fixed by the negative pressure of the suction holes 511. The position of the qualified product slice is corrected by combining the judgment of the correction vision detector 52. If the position of the qualified product slice is not in place, the negative pressure of the suction holes 511 is released, and the position of the qualified product slice is further adjusted by the robotic arm 4 until the positioning is corrected.

[0032] In this embodiment, for slices with defects detected by the visual inspection module 15 on the cutting platform 1, the system controls the negative pressure transmission line 2 to transport the defective slices with acceptable length to a designated location for recycling by the defective product recycling device 8. The defective product recycling device 8 includes a support platform 81, which is equipped with a recycling box 82 and a lateral moving part 83. The recycling box 82 is located at the bottom of the lateral moving part 83. The lateral moving part 83 adopts a gantry-type screw module structure. The moving end of the lateral moving part 83 moves towards the tail end of the negative pressure transmission line 2. The moving end of the lateral moving part 83 is equipped with a bracket 84, which is equipped with a lifting part 85. The lifting end of the lifting part 85 is equipped with a connecting frame 86. The connecting frame 86 is H-shaped, and each of the four top ends of the connecting frame 86 is equipped with several suction cups 87. The suction cups 87 are connected to a vacuum pump through pipes. The lateral moving component 83 controls the four suction cups 87 to move towards the defective slice on the negative pressure transmission line 2 until the four suction cups 87 are at the top of the defective slice. The lifting component 85 further controls the four suction cups to abut against the defective slice. The suction cups 87 and the vacuum pump use negative pressure to suck up the defective slice. The lateral moving component 83 moves the defective slice to the top of the recycling box 82. By releasing the negative pressure of the suction cups 87, the defective slice falls into the recycling box 82.

[0033] Based on the above structural description of the automatic die-cutting machine of this utility model, the actual implementation of the automatic die-cutting machine of this utility model will be described below:

[0034] During operation, the material roll 9 is manually placed on the unwinding assembly 11, simultaneously completing the initial threading. The material roll 91 sequentially passes through the unwinding and correction module 12, which adjusts the unwinding position based on sensor feedback. The tension control assembly 13 controls the tension of the material roll 91 by adjusting the air pressure. The dust removal assembly performs preliminary dust removal on the material roll 91 to avoid affecting subsequent visual defect detection. During the process, two visual inspection modules 15 visually inspect the front and back of the material roll 91 to detect whether there are any defects. If defects are found, the visual inspection module 15 transmits the location information of the defects to the system, which records the location information. At the same time, the system also outputs control cycle commands to the cutting module 17 to complete the slicing operation. During the cutting process, the traction module provides the power for the entire material roll 91 to move forward.

[0035] After slicing, the slices are transported downwards via a negative pressure conveyor line. Air vents 22 on the negative pressure conveyor line, aided by a fan, adsorb and transport the slices forward. When the slice passes the length detection sensor 3, its length is measured, allowing the system to determine if the slice meets the length requirement and stop it at a designated position. Simultaneously, the system combines feedback from the defect detection module to determine the slice's orientation and position on the negative pressure conveyor line 2. If the slice is defect-free and meets the length requirement, the robotic arm 4 picks it up at the designated position and transports it to the positioning and correction detection component 5. The correction platform and correction vision detector 52 perform the slice's positioning and correction. The robotic arm 4 then sends the slice from the correction platform to the die-cutting platform 6, which performs die-cutting and cleaning of the die-cutting receiving table. After die-cutting, the robotic arm 4 delivers the die-cut slice to the material box in the qualified product collection device 7. If the slice is a defective slice with flaws, the defective product recycling device 8 will collect the slices that meet the fixed length requirements into the recycling box 82. If the slice does not meet the fixed length requirements, the slice is determined to be waste material and will be transported to the outside of the equipment via a negative pressure conveyor line.

[0036] The device of this invention can also select function modes via the operation panel on the robotic arm 4, allowing operators to choose from multiple operation modes according to different needs. Based on practical applications, the device of this invention has six function modes, listed below:

[0037] Mode A: Continuous slicing mode. This mode is mainly for continuously coated electrodes. Through the CCD detection function of the vision inspection module 15, defects on the strip 91 can be visually identified and automatically detected. Combined with the length detection of the length detection module, qualified slices will be automatically transferred to the die-cutting station by the robotic arm 4. After die-cutting, they are placed into the qualified product collection device 7 for unloading.

[0038] Mode B: Cutting mode. The cutting function is the same as in Mode A, but only cutting is performed, without die-cutting.

[0039] Mode C: Inspection and cutting mode. After the material roll 9 is unwound, it is visually inspected and cut into slices of a fixed length. Qualified slices enter the die-cutting operation, while defective slices are sent to the defective product recycling device 8.

[0040] Mode D: The function is the same as Mode C, but the qualified product slices do not need to go through the die-cutting operation and are directly sent into the qualified product collection device 7 by the robotic arm 4.

[0041] Mode E: Visual defect detection function is disabled, cutting module 17 cuts to a fixed length and does not perform die cutting.

[0042] Mode F: Visual defect detection function is disabled. After the cutting module 17 cuts to a fixed length, die cutting is performed.

[0043] In summary, the automatic die-cutting machine of this utility model sets up a cutting platform 1, uses the unwinding component 11 and the traction component 16 to feed the material belt 91 forward, and uses the cutting module 17 to cut the material belt 91 into fixed-length slices; the visual inspection module 15 of the cutting platform 1 can perform CCD visual inspection on the front and back of the material belt 91 to determine whether there are defects in the cut slices. After cutting, the slices are conveyed forward via negative pressure transmission line 2. Simultaneously, length detection sensor 3 detects the length of the conveyed slices to determine if they meet the length requirements, thus filtering out three types of slices: slices with acceptable length and no defects (qualified products), slices with acceptable length but defects (defective products), and slices with unacceptable length (scrap products). The robotic arm 4 picks up qualified products and moves them to the positioning and correction detection component 5 for positioning correction before transferring them to the die-cutting platform 6 for die-cutting, and finally placing them in the qualified product collection device 7. Defective products are collected by the defective product recycling device 8. Scrap products with unacceptable length are moved out of the equipment via negative pressure transmission line 2, thus realizing the automatic cutting and screening of different slices for corresponding processing. Based on the detection results, further die-cutting, recycling, or disposal are carried out. Compared with existing technologies, this has the beneficial effects of improving production quality and work efficiency.

[0044] The embodiments of this utility model are not limited thereto. Based on the above content of this utility model, using ordinary technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, this utility model can also be modified, replaced or combined in various other forms, all of which fall within the scope of protection of this utility model.

Claims

1. An automatic die-cutting machine, comprising a cutting platform, the cutting platform having an unwinding assembly, an unwinding and correction module, a dust removal module, and a cutting module; characterized in that, The cutting platform is also equipped with two vision inspection modules, which are located between the unwinding assembly and the cutting module. The vision inspection ends of the two vision inspection modules face the front and back of the conveyed roll, respectively. The automatic die-cutting machine also includes a negative pressure transmission line, a length detection sensor, a robotic arm, a positioning and correction detection component, a die-cutting platform, a qualified product collection device, and a defective product recycling device. The front end of the negative pressure transmission line is connected to the cutting module, and the front end of the negative pressure transmission line is located below the cutting end of the cutting module. The length detection sensor is located in the middle or rear of the negative pressure transmission line. The positioning and correction detection component, the die-cutting platform, the qualified product collection device, and the defective product recycling device are all located around the negative pressure transmission line. The grippers of the robotic arm are used to grip or place products on the negative pressure transmission line, the positioning and correction detection component, the die-cutting platform, or the qualified product collection device.

2. The automatic die-cutting machine as described in claim 1, characterized in that, The negative pressure transmission line includes a conveyor belt with evenly distributed air holes on its surface. Baffles are provided on both sides of the conveyor belt to form a relatively sealed air cavity inside the conveyor belt. The baffles are provided with ventilation ports, which are connected to a vacuum pump through pipes.

3. The automatic die-cutting machine as described in claim 1, characterized in that, The length detection sensor is an infrared sensor, which is mounted on the middle of the top surface of the negative pressure transmission line via a plate, with the sensing end of the infrared sensor facing the transmission surface of the negative pressure transmission line.

4. The automatic die-cutting machine as described in claim 3, characterized in that, The number of infrared sensors is two, and the two infrared sensors are spaced apart along the transmission direction of the negative pressure transmission line.

5. The automatic die-cutting machine as described in claim 1, characterized in that, The positioning and correction detection component includes a correction platform and a correction visual detector. The correction platform is installed on one side of the negative pressure transmission line. The correction platform has an internal cavity and several evenly distributed suction holes on its top surface. The internal cavity is connected to a vacuum pump through a pipe. The correction visual detector is a CCD detector. The correction visual detector is installed above the correction platform, and its imaging end faces the correction platform.

6. The automatic die-cutting machine as described in claim 1, characterized in that, The defective product recycling device includes a support platform, on which a recycling box and a lateral moving component are provided. The recycling box is located below the lateral moving component. The moving end of the lateral moving component moves toward the tail end of the negative pressure transmission line. The moving end of the lateral moving component is provided with a bracket, and the bracket is provided with a lifting component. The lifting end of the lifting component is provided with a connecting frame, and the connecting frame is provided with several suction cups. The suction cups are connected to a vacuum pump through pipes. After the suction cups pick up the defective products, they move to the top of the recycling box via the lateral moving component. The suction action is released by the suction cups, so that the defective products are placed in the recycling box.

7. The automatic die-cutting machine as described in claim 1, characterized in that, The cutting platform is also equipped with a traction component, which is located between the unwinding component and the cutting module, and is close to the cutting module. The traction component includes a frame bracket, which is equipped with a fixed roller. A lifting cylinder is provided at the top of the frame bracket, with the extended end of the lifting cylinder facing the fixed roller. A rotating component is provided at the extended end of the lifting cylinder, and the rotating end of the rotating component is connected to a traction roller. The traction roller is opposite to and parallel to the fixed roller.

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