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CN-224232674-U - End surface glue pressing structure of cylindrical roll core

CN224232674UCN 224232674 UCN224232674 UCN 224232674UCN-224232674-U

Abstract

The utility model relates to the technical field of roll core glue pressing, and provides a cylindrical roll core end face glue pressing structure which comprises a furling cylinder and a rolling unit, wherein a glue pressing opening is formed in the furling cylinder, the inner diameter of the glue pressing opening gradually decreases along the axial direction of the glue pressing opening, the inner diameters of two ends of the glue pressing opening are respectively D 1 and D 2 , the outer diameter of roll core peripheral side glue paper is D 0 , the rolling unit comprises a rotary driving device, a connecting seat and a roller, the connecting seat is fixedly arranged at the output end of the rotary driving device, and the roller is rotatably arranged on the connecting seat. According to the utility model, the end face of the insulating adhesive paper can be folded by arranging the adhesive pressing port with the unidirectionally decreasing inner diameter in the folding cylinder, and the end face of the insulating adhesive paper is rolled by the roller through arranging the rotary driving device, the connecting seat and the roller, so that the stress of the insulating adhesive paper is more uniform and sufficient, the problems of wrinkling, unstable adhesion and the like of the insulating adhesive paper are avoided, and the adhesive pressing quality of the winding core is ensured.

Inventors

  • LU ZHENGHUI
  • ZHAO YUFANG
  • XUE HAO

Assignees

  • 江苏睿恩新能源科技有限公司

Dates

Publication Date
20260512
Application Date
20250526

Claims (10)

  1. 1. The end face glue pressing structure of the cylindrical winding core is characterized by comprising a furling cylinder (1) and a rolling unit (2), wherein, The inner diameter of the glue pressing port (101) is gradually reduced along the axial direction of the glue pressing port (101), the inner diameters of the two ends of the glue pressing port are respectively D 1 and D 2 , and the outer diameter of the glue paper on the periphery of the winding core (3) is D 0 , wherein D 1 ＜D 0 ＜D 2 ; The rolling unit (2) comprises a rotary driving device (21), a connecting seat (22) and a roller (23), wherein the connecting seat (22) is fixedly arranged at the output end of the rotary driving device (21), the roller (23) is rotatably arranged on the connecting seat (22), and the rotating shaft of the roller (23) is perpendicular to the rotating shaft of the output shaft of the rotary driving device (21).
  2. 2. The adhesive pressing structure of the end face of the cylindrical winding core according to claim 1, wherein the connecting seat (22) comprises a sleeve ring (221), a wheel seat (222) and a spring (223), wherein, The lantern ring (221) is fixedly arranged on the output end of the rotary driving device (21); The wheel seat (222) is arranged on the lantern ring (221) in a sliding manner, and the roller (23) is rotatably arranged on the wheel seat (222); Both ends of the spring (223) are respectively propped against the wheel seat (222) and the lantern ring (221).
  3. 3. The roll core end face gluing structure according to claim 2, wherein the connecting seat (22) further comprises a top plate (224) and an adjusting bolt (225), wherein, The top plate (224) is arranged between the spring (223) and the collar (221) in a propping way; The adjusting bolt (225) is connected to the lantern ring (221) through threaded fit and abuts against one side, away from the spring (223), of the top plate (224).
  4. 4. The roll core end face glue pressing structure according to claim 1, wherein the glue pressing port (101) comprises a conical section (1011), an arc section (1012) and a flat section (1013) which are sequentially and continuously arranged and coaxially arranged, and the inner diameter of the flat section (1013) is smaller than the inner diameter of the conical section (1011).
  5. 5. A cylindrical winding core end face laminating structure according to claim 4, wherein the tapered section (1011) is of a tapered hole-like structure, and the included angle between the side wall and the axis thereof is alpha, wherein alpha is more than or equal to 10 degrees and less than or equal to 40 degrees.
  6. 6. The adhesive pressing structure of the end face of the cylindrical winding core according to claim 5, wherein the inner diameter of the conical section (1011) near one end of the flat section (1013) is D 3 , and wherein 0.8mm is less than or equal to (D 3 -D 0 ) is less than or equal to 1.2mm.
  7. 7. The adhesive pressing structure of the end face of the cylindrical winding core according to claim 4, wherein the side wall of the arc-shaped section (1012) is arc-shaped, the arc angle radius of the side wall of the arc-shaped section (1012) is R 1 , and R 1 is more than or equal to 0.15mm and less than or equal to 0.35mm.
  8. 8. The adhesive pressing structure of the end face of the cylindrical winding core according to claim 4, wherein the axis of the straight section (1013) coincides with the axis of the output end of the rotary driving device (21).
  9. 9. A cylindrical roll core end face laminating structure according to any one of claims 1-8, wherein (D 2 -D 0 ) >1.5mm, and 0.5mm +≤d 0 -D 1 +.1 mm.
  10. 10. A cylindrical core end face lamination as defined in any one of claims 1-8, wherein the roller (23) comprises a wheel body (231) and a flexible layer (232), wherein, The wheel body (231) is rotatably arranged on the connecting seat (22); The flexible layer (232) is fixedly arranged on the circumferential side of the wheel body (231).

Description

End surface glue pressing structure of cylindrical roll core Technical Field The utility model relates to the technical field of roll core glue pressing, in particular to a cylinder roll core end face glue pressing structure. Background In the manufacturing process of the cylindrical battery, in order to effectively avoid the problems of poor shell voltage and the like caused by direct contact between the lug and the shell wall of the battery, an insulating gummed paper is generally arranged at the edge of the lug of the cylindrical battery in the industry, so that the safety and reliability of the cylindrical battery are effectively improved, the occurrence rate of the quality problems of poor shell voltage and the like caused by contact between the lug and the shell wall is reduced, and the method has important significance for guaranteeing the performance and the service life of the battery. After the insulating adhesive paper is attached to the peripheral side of the winding core, the end face of the insulating adhesive paper is required to be pressed, for example, an automatic battery core adhesive sticking machine disclosed in the patent with publication number CN113471507B is provided with a turnover assembly and a movable fifth pressing block, and the turnover assembly is utilized to turn over the skirt edge of the insulating adhesive paper onto the end face of the winding core, and then the fifth pressing block presses the end face of the winding core so as to firmly adhere the skirt edge onto the end face of the winding core. However, when the skirt edge is folded to the end face of the winding core by the folding assembly, a certain interval exists between the skirt edge and the end face of the winding core, at this time, the skirt edge is extruded by directly utilizing the fifth pressing block, the problem of wrinkling can occur on the skirt edge, the insulativity of the winding core can be damaged after the gummed paper is wrinkled, potential safety hazards exist, difficulties can be brought to the subsequent processing technology of the winding core, and the processing efficiency of the winding core is reduced. Disclosure of utility model In view of the above, the utility model provides a cylinder roll core end surface glue pressing structure, which can improve the flatness of the surface of glue paper after glue pressing operation, and effectively improve the overall performance of the roll core. The technical scheme of the utility model is realized in such a way that the utility model provides a cylindrical winding core end surface glue pressing structure which comprises a furling cylinder and a rolling unit, The inner diameter of the glue pressing port is gradually reduced along the axial direction of the glue pressing port, the inner diameters of the two ends of the glue pressing port are respectively D 1 and D 2, and the outer diameter of the glue paper on the periphery of the winding core is D 0, wherein D 1＜D0＜D2; The rolling unit comprises a rotary driving device, a connecting seat and a roller, wherein the connecting seat is fixedly arranged at the output end of the rotary driving device, the roller is rotatably arranged on the connecting seat, and the rotating shaft of the roller is perpendicular to the rotating shaft of the output shaft of the rotary driving device. On the basis of the technical proposal, preferably, the connecting seat comprises a lantern ring, a wheel seat and a spring, wherein, The lantern ring is fixedly arranged at the output end of the rotary driving device; the wheel seat is arranged on the lantern ring in a sliding way, and the roller is rotatably arranged on the wheel seat; And two ends of the spring are respectively propped against the wheel seat and the lantern ring. Still further preferably, the connection base further comprises a top plate and an adjusting bolt, wherein, The top plate is propped and arranged between the spring and the lantern ring; The adjusting bolt is connected to the lantern ring in a threaded fit mode and abuts against one side, away from the spring, of the top plate. On the basis of the technical scheme, preferably, the glue pressing port comprises a conical section, an arc section and a flat section which are sequentially and continuously arranged and coaxially arranged, and the inner diameter of the flat section is smaller than that of the conical section. Still more preferably, the tapered section has a tapered hole-like structure, and the side wall of the tapered section has an angle alpha with the axis of the tapered section, wherein alpha is more than or equal to 10 degrees and less than or equal to 40 degrees. Still more preferably, the tapered section has an inner diameter D 3 near one end of the straight section, wherein 0.8mm < D 3-D0 < 1.2mm. Still more preferably, the side wall of the arc-shaped section is arc-shaped, and the arc angle radius of the side wall of the arc-shaped section is R 1, wherein R 1 is more than or