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CN-119301798-B - Threading device and method for splicing belts by adopting threading device

CN119301798BCN 119301798 BCN119301798 BCN 119301798BCN-119301798-B

Abstract

The embodiment of the application provides a threading device and a method for splicing a strip by adopting the threading device, comprising a sliding track, a plurality of guide rails and a plurality of guide rails, wherein the sliding track is arranged along a conveying path of the strip; the sliding rod device is detachably connected to the sliding track; and the traction body can slide along the sliding track. The threading device can be used for splicing the strip after the strip is broken.

Inventors

  • ZHAN BINGYANG
  • ZHANG JINGDONG
  • ZHEN ZHIHUI
  • CHEN WEIGANG
  • WANG QIANGJUN
  • Lv Shengjuan

Assignees

  • 宁德时代新能源科技股份有限公司

Dates

Publication Date
20260508
Application Date
20230103

Claims (20)

  1. 1. A threading device, characterized in that the threading device (20) comprises: A glide track (21), the glide track (21) being arranged along a transport path of the strip; The sliding rod device (22), the sliding rod device (22) is detachably connected to the sliding track (21), the sliding rod device (22) comprises a connecting rod (222) and a sliding block mechanism (221), the end part of the connecting rod (222) is connected to the sliding block mechanism (221), the sliding block mechanism (221) is slidably connected with the sliding track (21), the sliding block mechanism (221) is provided with a mounting groove (2211), the end part of the connecting rod (222) is arranged in the mounting groove (2211) so as to be connected with the sliding block mechanism (221), and the sliding block mechanism (221) comprises a pressing block (2212) for pressing the end part of the connecting rod (222) in the mounting groove (2211) after the end part of the connecting rod (222) is arranged in the mounting groove (2211); -a traction body (23), said traction body (23) being slidable along said sliding track (21).
  2. 2. Threading device according to claim 1, characterized in that the sliding track (21) comprises a first track (21 a) and a second track (21 b) arranged opposite each other.
  3. 3. Threading device according to claim 2, characterized in that the first track (21 a) and/or the second track (21 b) are hollow sealing tracks, the traction body (23) being configured to slide inside the sealing tracks.
  4. 4. A threading device according to claim 3, characterized in that the sealing track is connected to an air pressure control device such that the traction body (23) slides within the sealing track under the effect of an air pressure difference.
  5. 5. Threading device according to claim 4, characterized in that the traction body (23) is magnetically connected with the slide bar device (22) to draw the slide bar device (22).
  6. 6. The threading device according to claim 5, wherein when the sealing track is a sealing circular tube, the traction body (23) comprises a cylindrical magnetic ball (231) and a sealing ring (232), the diameter of the magnetic ball (231) is smaller than the inner diameter of the sealing circular tube, and the sealing ring (232) is sleeved on the surface of the magnetic ball (231) to seal a gap between the magnetic ball (231) and the sealing circular tube.
  7. 7. Threading device according to claim 6, characterized in that the difference between the diameter of the magnetic ball (231) and the inner diameter of the sealing round tube is 1-3mm.
  8. 8. Threading device according to claim 7, characterized in that the length of the magnetic ball (231) in the transport direction of the strip is 40-100mm.
  9. 9. Threading device according to claim 8, characterized in that the magnetic ball (231) has rounded structures at both ends in the transport direction of the strip.
  10. 10. The threading device according to any of claims 1-9, characterized in that the surface of the end of the connecting rod (222) in contact with the press block (2212) is planar.
  11. 11. The threading device according to any of claims 1-9, characterized in that the slider mechanism (221) further comprises a fixture (2213) for fixing the press block (2212).
  12. 12. Threading device according to any of claims 1-9, characterized in that the slider mechanism (221) is provided with a slide groove (2214), through which slide groove (2214) the slider mechanism (221) is slidingly connected with the slide rail (21).
  13. 13. The threading device according to claim 12, characterized in that the slider mechanism (221) comprises guiding means (2215), which guiding means (2215) abut against the sliding track (21) to limit the slider mechanism (221) in case the sliding track (21) is housed in the chute (2214).
  14. 14. The threading device according to claim 13, characterized in that the guiding means (2215) comprise a ball (2215 a), a spring (2215 b) and an adjusting screw (2215 c), the ball (2215 a) being in abutment with the sliding track (21) such that the slider mechanism (221) slides along the sliding track (21), the spring (2215 b) being in abutment with the ball (2215 a), the adjusting screw (2215 c) being for adjusting the deformation of the spring (2215 b) for adjusting the relative position of the slider mechanism (221) and the sliding track (21).
  15. 15. Threading device according to claim 13 or 14, characterized in that the slider mechanism (221) comprises four of the guiding means (2215), the four guiding means (2215) being symmetrically arranged.
  16. 16. Threading device according to claim 12, characterized in that the gap between the runner (2214) and the sliding track (21) has a size of 1-3mm.
  17. 17. Threading device according to claim 12, characterized in that the two ends of the chute (2214) in the direction of transport of the strip have rounded structures.
  18. 18. The threading device according to any of claims 1-9, characterized in that the connecting rod (222) is a hollow circular tube.
  19. 19. A method of splicing tapes with a threading device, characterized in that the threading device (20) according to any of claims 1-18 is used for splicing tapes.
  20. 20. The method of claim 19, wherein the strip breaks into a first strip and a second strip, the first strip being upstream of the second strip in a direction of conveyance of the strips, the method comprising: Connecting the slide bar device (22) with the sliding track (21) at the belt breaking end of the second belt material, and connecting the slide bar device (22) with the second belt material; Driving the traction body (23) to the broken end of the second strip, so that the traction body (23) pulls the sliding rod device (22) to slide along the sliding track (21) to the broken end of the first strip; And splicing the first strip material and the second strip material.

Description

Threading device and method for splicing belts by adopting threading device Technical Field The application relates to the field of battery manufacturing, in particular to a threading device and a method for carrying out tape splicing by adopting the threading device. Background The production process of the battery can comprise a pole piece manufacturing process, wherein the strip material needs to be conveyed from the unreeling device to the reeling device, and the strip material is required to be connected when the strip material is broken in the conveying process. Generally, a device for splicing the belt materials adopts a chain, a steel wire rope, a belt, a synchronous belt and the like, and has a complex structure and high cost. Therefore, there is a great need to improve the efficiency of battery production. Disclosure of Invention The application provides a threading device and a method for carrying out strap connection by adopting the threading device, wherein the threading device has the advantages of simple structure and lower cost, and the threading device is convenient to carry out strap connection operation and can improve the production efficiency of batteries. In a first aspect, a threading device is provided that includes a skid rail disposed along a travel path of a strip, a slide bar device detachably connected to the skid rail, and a traction body slidable along the skid rail. According to the technical scheme, the sliding track is arranged along the conveying path of the strip, the sliding rod device is detachably connected to the sliding track, and the traction body is arranged to slide along the sliding track, so that strip splicing can be realized when the strip breaks. On the conveying path of strip, slide track integration setting, slide bar device can dismantle the optional position that is connected to the track of sliding, can realize connecing the area at any time, simple structure, convenient operation can promote the production efficiency of pole piece to further promote the production efficiency of battery. In some possible embodiments, the glide track includes oppositely disposed first and second tracks. According to the embodiment, the sliding track comprises the first track and the second track which are oppositely arranged, so that the conveying direction of the belt materials is limited, the whole structure is symmetrical, and when the belt materials are conveyed, the stress of the belt materials is uniform, so that the belt connection of the belt materials can be better realized. In some possible embodiments, the first rail and/or the second rail are hollow sealing rails, and the traction body is configured to slide within the sealing rails. According to the embodiment, the hollow sealing rail is used as the sliding rail, so that the weight of the rail is reduced, and the traction body is arranged in the sealing rail, so that the occupied space of the threading device is reduced. In some possible embodiments, the sealing track is connected to a pneumatic control device, so that the traction body slides within the sealing track under the action of a pneumatic pressure difference. According to the embodiment, the sealing track is connected with the air pressure control device, and the traction body is pushed by utilizing air pressure difference in the sealing track, so that the sliding rod device is further pushed to slide along the sliding track, the additional traction device is avoided, the structure is simple, and the weight of the threading device is reduced. In some possible embodiments, the traction body is magnetically connected with the slide bar device to draw the slide bar device. According to the embodiment, the traction body is magnetically connected with the slide bar device, so that the traction body and the slide bar device do not need to be in direct contact, and the slide bar device can be driven to slide, so that an additional connecting structure is avoided, and the structure is simple and easy to realize. In some possible embodiments, when the sealing track is a sealing circular tube, the traction body includes a cylindrical magnetic ball and a sealing ring, the diameter of the magnetic ball is smaller than the inner diameter of the sealing circular tube, and the sealing ring is sleeved on the surface of the magnetic ball to seal a gap between the magnetic ball and the sealing circular tube. According to the embodiment, the traction body comprises the magnetic ball and the sealing ring, so that the attraction force between the magnetic ball and the sliding rod device is larger, the magnetic connection is better realized between the magnetic ball and the sliding rod device, and the gas at two ends of the traction body is isolated, so that the gas pressure difference at two ends can be different, and the traction body can slide along the sealing circular tube under the action of the gas pressure difference. In some possible embodiments, the difference