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CN-224224081-U - Pole piece die cutting device

CN224224081UCN 224224081 UCN224224081 UCN 224224081UCN-224224081-U

Abstract

The utility model discloses a pole piece die cutting device which comprises a mounting seat, a die assembly, a driving mechanism and a transmission mechanism, wherein the die assembly comprises an upper die assembly and a lower die assembly which are arranged on the mounting seat, the upper die assembly is positioned above the lower die assembly, the transmission assembly comprises a connecting assembly and an eccentric rotating member with an eccentric structure, the connecting assembly is connected with the upper die assembly, one end of the eccentric rotating member is in transmission connection with an output shaft of the driving mechanism, and the other end of the eccentric rotating member is in transmission connection with the connecting assembly so as to drive the upper die assembly to slide on the mounting seat along the vertical direction. According to the utility model, through a corresponding eccentric transmission design, the rotary motion of the output shaft of the driving mechanism can be stably converted into the reciprocating linear motion of the upper die assembly along the vertical direction, so that the motion stability of the upper die assembly is improved, and the shake in the motion process is effectively reduced.

Inventors

  • ZHAO XIAOMIN

Assignees

  • 深圳市海得地实业有限公司

Dates

Publication Date
20260512
Application Date
20250508

Claims (10)

  1. 1. The pole piece die cutting device is characterized by comprising a mounting seat, a die assembly, a driving mechanism and a transmission mechanism, wherein the die assembly comprises an upper die assembly and a lower die assembly which are arranged on the mounting seat, the upper die assembly is positioned above the lower die assembly, the transmission assembly comprises a connecting assembly and an eccentric rotating part with an eccentric structure, the connecting assembly is connected with the upper die assembly, one end of the eccentric rotating part is in transmission connection with an output shaft of the driving mechanism, and the other end of the eccentric rotating part is in transmission connection with the connecting assembly so as to drive the upper die assembly to slide on the mounting seat along the vertical direction.
  2. 2. The pole piece die cutting device of claim 1, wherein the eccentric transmission member comprises a rotating shaft portion and an eccentric shaft portion in eccentric transmission connection, the rotating shaft portion is in transmission connection with the output shaft of the driving mechanism, and the eccentric shaft portion is in transmission connection with the connecting assembly.
  3. 3. The pole piece die cutting device of claim 2, wherein the connecting assembly comprises a crank and a first connecting piece, one end of the crank is rotatably connected with the eccentric shaft through a first bearing, and the other end of the crank is connected with the first connecting piece through a second bearing.
  4. 4. The pole piece die cutting device according to claim 3, wherein the connecting assembly comprises a second connecting piece and a connecting plate, the second connecting piece is installed on the upper die assembly, two clamping blocks are arranged on the second connecting piece, a distance is reserved between the two clamping blocks, the upper end of the connecting plate is connected with the first connecting piece, a bending portion is arranged at the lower end of the connecting plate, and the bending portion is clamped in the distance.
  5. 5. The pole piece die cutting device of claim 3, wherein the mounting base comprises a first mounting frame, a second mounting frame and a base table, the upper end of the second mounting frame is connected with the first mounting frame, and the lower end of the second mounting frame is connected with the base table in a relatively sliding manner.
  6. 6. The pole piece die cutting device of claim 5, wherein the two sides of the first connecting piece are provided with protruding blocks, the protruding blocks are provided with sliding grooves, the two sides of the first mounting frame are provided with first sliding blocks, and the first sliding blocks are slidably arranged in the sliding grooves.
  7. 7. The pole piece die cutting device of claim 5, wherein a slide sheet is arranged on one side of the first connecting piece, a positioning block is arranged on one side of the first mounting frame, and a limiting groove for the slide sheet to pass through is formed in the positioning block.
  8. 8. The pole piece die cutting device of claim 5, further comprising a deviation rectifying mechanism, wherein the deviation rectifying mechanism comprises an adjusting device and a bearing table, the adjusting device comprises a main body part and an adjusting part, the main body part is installed on the second installation frame, the adjusting part is slidably connected with the main body part, the bearing table is arranged on the second installation frame, and an adjusting channel for sliding of the adjusting part is formed in the bearing table.
  9. 9. The pole piece die cutting device of claim 5, further comprising two first adjustment members disposed on the base plate, the two first adjustment members having a spacing, each first adjustment member having a bolt, the base plate having a second adjustment member disposed thereon, the second adjustment member being interposed between the bolts of the two first adjustment members.
  10. 10. The pole piece die cutting device of claim 1, further comprising a safety grating disposed on the mount.

Description

Pole piece die cutting device Technical Field The utility model relates to the technical field of die cutting equipment, in particular to a pole piece die cutting device. Background In the industries related to pole piece processing such as battery production, the pole piece die cutting is a key process for cutting a pole piece into a specific shape and size, the pole piece die cutting is a process for cutting a positive pole piece and a negative pole piece of a battery with high precision through a special die and a transmission mechanism, and the core purpose is to process the pole piece according to the preset shape, size and edge quality requirements so as to meet the strict specification of battery assembly. The process needs to ensure the integrity, consistency and burr-free performance of the pole piece in the cutting process, thereby ensuring the electrochemical performance and safety of the battery. At present, the traditional pole piece die cutting device adopts a linear driving structure to realize the matching movement of the upper die assembly and the lower die assembly, however, the linear driving mechanism is easy to vibrate due to inertial impact in high-frequency reciprocating movement, and the stability is not enough. Disclosure of utility model The utility model aims to solve the technical problem of providing a pole piece die cutting device so as to solve the problem of insufficient stability of the existing pole piece die cutting device. In order to solve the technical problems, the pole piece die cutting device comprises a mounting seat, a die assembly, a driving mechanism and a transmission mechanism, wherein the die assembly comprises an upper die assembly and a lower die assembly which are arranged on the mounting seat, the upper die assembly is positioned above the lower die assembly, the transmission assembly comprises a connecting assembly and an eccentric rotating part with an eccentric structure, the connecting assembly is connected with the upper die assembly, one end of the eccentric rotating part is in transmission connection with an output shaft of the driving mechanism, and the other end of the eccentric rotating part is in transmission connection with the connecting assembly so as to drive the upper die assembly to slide on the mounting seat in the vertical direction. Further, in the pole piece die cutting device, the eccentric transmission member comprises a rotating shaft part and an eccentric shaft part which are in eccentric transmission connection, the rotating shaft part is in transmission connection with the output shaft of the driving mechanism, and the eccentric shaft part is in transmission connection with the connecting component. Further, in the pole piece die cutting device, the connecting assembly comprises a crank and a first connecting piece, one end of the crank is connected with the eccentric shaft in a relatively rotatable manner through a first bearing, and the other end of the crank is connected with the first connecting piece through a second bearing. Further, in the pole piece die cutting device disclosed by the utility model, the connecting component comprises a second connecting piece and a connecting plate, the second connecting piece is arranged on the upper die component, two clamping blocks are arranged on the second connecting piece, a space is reserved between the two clamping blocks, the upper end of the connecting plate is connected with the first connecting piece, a bending part is arranged at the lower end of the connecting plate, and the bending part is clamped and fixed in the space. Further, in the pole piece die cutting device disclosed by the utility model, the mounting seat comprises a first mounting frame, a second mounting frame and a bottom table, the upper end of the second mounting frame is connected with the first mounting frame, and the lower end of the second mounting frame is connected with the bottom table in a relatively sliding manner. Further, in the pole piece die cutting device disclosed by the utility model, the two sides of the first connecting piece are provided with the convex blocks, the convex blocks are provided with the sliding grooves, the two sides of the first mounting frame are provided with the first sliding blocks, and the first sliding blocks are slidably arranged in the sliding grooves. Further, in the pole piece die cutting device disclosed by the utility model, a sliding sheet is arranged on one side of the first connecting piece, a positioning block is arranged on one side of the first mounting frame, and a limiting groove for the sliding sheet to pass through is formed in the positioning block. Further, in the pole piece die cutting device, the pole piece die cutting device further comprises a deviation rectifying mechanism, the deviation rectifying mechanism comprises an adjusting device and a bearing table, the adjusting device comprises a main body part and an adjusting part, the main body part