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CN-224221751-U - Glue outlet device and glue spreading equipment

CN224221751UCN 224221751 UCN224221751 UCN 224221751UCN-224221751-U

Abstract

The application relates to a glue outlet device and glue spreading equipment, which comprises a glue outlet nozzle and a limiting piece. The glue outlet nozzle is provided with a glue outlet through hole, the limiting piece is provided with at least one limiting plate and forms a limiting cavity, the glue outlet nozzle is connected with the limiting piece, and the glue outlet through hole is communicated with the limiting cavity so as to be used for forming a glue coating structure coated on the surface of the battery. When the glue outlet device moves along a preset track on the large surface of the battery monomer to carry out hot melt glue coating operation, the limiting plate on the limiting piece can limit the flow of the hot melt glue, so that the hot melt glue is not easy to collapse in the later-stage curing process, the position precision and the dimensional precision of the finally coated glue coating strip are higher, the later-stage bonding effect is guaranteed, and the attractiveness is also higher.

Inventors

  • XU FANGNAN
  • LIU PENGFEI
  • LV JIANXIAN
  • YU CHUNQUAN
  • Luan Yujun
  • TANG YONGHUA
  • ZHAO BIN

Assignees

  • 宁德时代新能源科技股份有限公司

Dates

Publication Date
20260512
Application Date
20250415

Claims (14)

  1. 1. Glue discharging device, characterized in that, glue discharging device includes: the glue outlet nozzle (10) is provided with a glue outlet through hole (11); The glue outlet nozzle (10) is connected with the limiting piece (20), and the glue outlet through hole (11) is communicated with the limiting cavity (20 a) so as to be used for forming a glue coating structure (1210) coated on the surface of the battery (1000).
  2. 2. Glue outlet device according to claim 1, wherein the limit cavity (20 a) is adapted to house a glue strip (1211) for forming the glue structure (1210); the outer contour of the projection of the limiting cavity (20 a) on a section perpendicular to the extension direction of the glue spreading strip (1211) comprises at least one curve section, or The outer contour of the projection of the limiting cavity (20 a) on a section perpendicular to the extension direction of the glue strip (1211) comprises at least one straight line segment.
  3. 3. The glue outlet device according to claim 2, wherein the limiting piece (20) comprises a first limiting plate (21), a second limiting plate (22) and a third limiting plate (23) which are connected in sequence and are arranged in an angle; The first limiting plate (21), the second limiting plate (22) and the third limiting plate (23) are arranged together to form the limiting cavity (20 a).
  4. 4. A glue outlet device according to claim 3, wherein the second limiting plate (22) is provided with a mounting hole (22 a) penetrating through the limiting cavity (20 a), the glue outlet nozzle (10) is mounted at the mounting hole (22 a), and the mounting hole (22 a) is communicated with the glue outlet through hole (11).
  5. 5. Glue outlet device according to claim 4, characterized in that the first limiting plate (21) is arranged perpendicular to the second limiting plate (22); the second limiting plate (22) is perpendicular to the third limiting plate (23).
  6. 6. A glue outlet device according to claim 3, characterized in that the minimum length d 1 between the first limiting plate (21) and the third limiting plate (23), and the minimum width d 2 of the glue strip (1211) in the direction in which the first limiting plate (21) and the second limiting plate (22) are arranged opposite each other satisfy the condition: d 2 /3≤d 1 ≤3d 2 。
  7. 7. A glue outlet device according to claim 3, characterized in that the maximum height h 1 of the limiting cavity (20 a) in the thickness direction of the second limiting plate (22) and the maximum height h 2 of the glue strip (1211) in the thickness direction of the second limiting plate (22) satisfy the condition: 0≤h 1 -h 2 ≤15mm。
  8. 8. Glue outlet device according to any of claims 3-7, characterized in that the glue outlet through hole (11) has a circular structure in cross section along its axis.
  9. 9. The glue outlet device according to claim 8, characterized in that the diameter d of the glue outlet through hole (11) and the maximum height h 2 of the glue strip (1211) in the thickness direction of the second limiting plate (22) satisfy the condition: h 2 /4≤d≤4h 2 。
  10. 10. Glue outlet device according to any of claims 3-7, characterized in that the glue outlet through hole (11) has a square structure in cross section along its axis.
  11. 11. Glue outlet device according to claim 10, characterized in that the minimum side length d 3 and the maximum side length d 4 of the cross section of the glue outlet through hole (11) along its axis and the maximum height h 2 of the glue strip (1211) along the thickness direction of the second limiting plate (22) satisfy the condition: h 2 /4≤d 3 ≤d 4 ≤4h 2 。
  12. 12. A gluing device, characterized in that it comprises: the glue dispensing apparatus of any one of claims 1-11, and The glue supply assembly is connected with the glue outlet nozzle (10).
  13. 13. Gluing apparatus according to claim 12, characterized in that the gluing apparatus further comprises a glue outlet valve; the glue outlet valve is connected between the glue supply assembly and the glue outlet nozzle (10).
  14. 14. Gluing apparatus according to claim 13, wherein the glue supply assembly comprises: A metering pump connected with the glue outlet valve; and the pressure disc pump is connected with one end, far away from the glue outlet valve, of the metering pump and is used for heating the solid hot melt glue to a liquid state and conveying the solid hot melt glue into the metering pump.

Description

Glue outlet device and glue spreading equipment Technical Field The application relates to the technical field of gluing, in particular to a glue discharging device and gluing equipment. Background In the power battery production process, the outer wall of each battery monomer is generally required to be coated with an adhesive tape, and then the adhesive tape is used for bonding a plurality of battery monomers. In the related art, a plurality of adhesive tapes are mostly adhered to the outer wall of a battery cell through adhesive tape adhering equipment and are enclosed into a square structure. When the hot melt adhesive material is selected for the coated adhesive tape, due to the material characteristic of the hot melt adhesive, the coated adhesive tape is easy to collapse in the curing process, and the position precision and the size precision of the coated adhesive tape are lower, so that the later adhesive effect is affected, and the attractiveness is lower. Disclosure of utility model In view of the above problems, the application provides a glue discharging device and glue coating equipment, which can reduce the possibility of collapse of the adhesive tape when the adhesive tape is coated on the outer wall of a battery monomer, and effectively improve the reliability and the attractiveness of the battery monomer. In a first aspect, the present application provides a glue outlet device, which includes a glue outlet nozzle and a limiting member. The glue outlet nozzle is provided with a glue outlet through hole, the limiting piece is provided with at least one limiting plate and forms a limiting cavity through the at least one limiting plate, and the glue outlet nozzle is connected with the limiting piece and is communicated with the limiting cavity so as to be used for forming a glue coating structure coated on the surface of the battery. When the hot melt adhesive is directly coated on the large surface of the battery monomer by the adhesive outlet device provided by the embodiment of the application, the hot melt adhesive flows into the limiting cavity from the adhesive outlet through hole of the adhesive outlet nozzle, and when the adhesive outlet device moves along the preset track on the large surface of the battery monomer to carry out the operation of coating the hot melt adhesive, the limiting plate on the limiting piece can limit the flow of the hot melt adhesive, so that the hot melt adhesive is not easy to collapse in the later curing process, and the position precision and the dimensional precision of the finally coated adhesive tape are higher, the later adhesive effect is ensured, and the attractiveness is higher. According to the application, a continuous gluing structure is formed by limiting the coated gluing strip, so that the possibility of large-area glue overflow caused by a gap between the glue strips when the glue strips are glued by the traditional gluing equipment is reduced, and finally, a colloid hard block is not easy to form on the large surface of the battery monomer, thereby reducing the possibility of local stress of the battery monomer caused by direct contact collision with the colloid hard block when the battery monomer expands, and effectively improving the reliability of the battery monomer. In some embodiments, the limiting cavity is used for accommodating a glue spreading strip for forming a glue spreading structure, and the outer contour of the projection of the limiting cavity on a section perpendicular to the extending direction of the glue spreading strip comprises at least one curve section. The outer contour of the projection of the limiting cavity on the section perpendicular to the extending direction of the glue spreading strip is set to comprise at least one curve section, so that the glue spreading strip formed through the limiting cavity is shaped to comprise at least one curve section, and the processing requirement of the glue spreading strip requiring a curve section structure is further adapted. In other of these embodiments, the outer contour of the projection of the limiting cavity onto a section perpendicular to the direction of extension of the glue strip comprises at least one straight line segment. The outer contour of the projection of the limiting cavity on the section perpendicular to the extending direction of the glue spreading strip is set to comprise at least one straight line segment, so that the glue spreading strip formed through the limiting cavity is in a shape comprising at least one straight line segment, and the processing requirement of the glue spreading strip requiring a straight line segment structure is further adapted. In some embodiments, the limiting piece comprises a first limiting plate, a second limiting plate and a third limiting plate which are sequentially connected and are arranged in an angle mode, the first limiting plate, the second limiting plate and the third limiting plate are jointly surrounded to form