Flaring mechanism for battery liquid injection machine

Abstract

The utility model relates to a flaring mechanism for a battery liquid injection machine, which comprises a mounting seat, a sucker component, a flaring component and a lifting driving component, and the sucker component is arranged below the mounting seat; the flaring assembly is movably arranged on the mounting seat through the lifting driving assembly and comprises a lifting seat, opening rods, a rack and a flaring driving part, the lifting seat is connected with the lifting driving assembly, the multiple opening rods are arranged below the lifting seat at intervals, the rack is movably arranged on the lifting seat and is in transmission connection with the multiple opening rods, and the flaring driving part is arranged on the rack. The driving end of the flaring driving piece is in transmission connection with the rack; the lifting driving assembly drives the opening rods to be inserted into openings of corresponding products through the lifting base, the flaring driving piece drives the opening rods to rotate synchronously through the rack, and the flaring parts at the lower ends of the opening rods rotate in the openings of the products so as to expand the openings, used for liquid injection, of the products. According to the utility model, the flaring assembly is used for flaring a plurality of product air bags at the same time, so that the flaring efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production equipment, in particular to a flaring mechanism for a battery liquid filling machine. Background Art

[0002] In the manufacturing process of soft-pack batteries, the wound battery cell is placed in an aluminum-plastic film for side sealing. After the side sealing is completed, only one side of the air bag is left open. The lithium battery filling machine injects electrolyte into the battery cell through this opening. After the injection is completed, the air bag needs to be pre-sealed immediately. After the pre-sealing is completed, the inside of the battery cell is completely isolated from the external environment. Because the opening on one side of the air bag formed by the aluminum-plastic film after the side sealing is easy to close, the existing lithium battery filling machines mostly pull the aluminum-plastic film on both sides of the air belt to both sides through the suction cups on both sides, open the opening and insert the filling head for filling operation. The opening width opened in this way is small, and there is a certain probability that the filling head will not be inserted into the opening, resulting in filling failure and affecting the yield rate of the battery cell. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the utility model provides a flaring mechanism for a battery liquid filling machine.

[0004] The utility model provides a flaring mechanism for a battery liquid filling machine, comprising a mounting seat, a suction cup assembly, a flaring assembly and a lifting drive assembly, wherein the suction cup assembly is arranged below the mounting seat, and the suction cup assembly sucks the opening of the product to a certain width; the flaring assembly is movably arranged on the mounting seat through the lifting drive assembly, and the flaring assembly comprises a lifting seat, an opening rod, a rack and a flaring drive member, the lifting seat is connected to the lifting drive assembly, a plurality of opening rods are arranged at intervals below the lifting seat, the rack is movably arranged on the lifting seat, and is transmission-connected with the plurality of opening rods, and the driving end of the flaring drive member is transmission-connected with the rack; the lifting drive assembly drives the plurality of opening rods to be respectively inserted into the openings of corresponding products through the lifting seat, and the flaring drive member drives the plurality of opening rods to rotate synchronously through the rack, and the flaring portion at the lower end of the opening rod rotates in the opening of the product to expand the opening of the product for liquid injection.

[0005] In some embodiments, the flared portion is in a sheet shape.

[0006] In some embodiments, a bearing and a gear are coaxially arranged on the upper part of the opening rod, the bearing is connected to the lifting seat, the gear is meshed with the rack, and the expansion drive drives the opening rod to rotate through the rack and the gear.

[0007] In some embodiments, a linear guide rail is provided on the lifting seat, the rack is connected to a slide seat on the linear guide rail through a connecting block, and the flaring driving member drives the rack to move along the linear guide rail.

[0008] In some of the embodiments, the mounting seat is provided with avoidance holes for a plurality of open rods to pass through up and down.

[0009] In some embodiments, the expansion drive member is a cylinder, the cylinder is fixed on a lifting seat, and the drive end of the cylinder is connected to the rack.

[0010] In some embodiments, the lifting drive assembly includes a fixed plate, a lifting motor, a lifting drive screw and a lifting guide rail. The fixed plate is fixed to the mounting seat through a column, the lifting seat is located between the fixed plate and the mounting seat, the lifting motor is mounted on the fixed plate, the lifting drive screw and the lifting guide rail are arranged parallel to each other between the fixed plate and the mounting seat, the lifting drive screw is arranged at the driving end of the lifting motor and is transmission-connected to the lifting seat, the lifting guide rail is slidingly connected to the lifting seat, and the lifting motor drives the lifting seat to move along the lifting guide rail through the lifting drive screw.

[0011] In some embodiments, the suction cup assembly includes a suction cup rod, a plurality of suction cups connected to an external air source are arranged on the inner side of the suction cup rod, two suction cup rods are arranged in an opening and closing manner below the mounting seat, the mounting seat is provided with a slide rail and a drive motor, the suction cup rod is slidably connected to the slide rail, the drive motor is transmission-connected to the suction cup rod, and the drive motor drives the suction cup rod to move back and forth along the slide rail.

[0012] In some embodiments, the driving end of the driving motor is provided with a driving gear, and the driving gear is transmission-connected with two gear rows, and the two gear rows are respectively connected to two suction cup rods. The driving motor drives the two suction cup rods to open and close at the same time through the driving gear and the two gear rows.

[0013] In some embodiments, a mounting frame is further included, wherein the mounting seat is located below the mounting frame, a lifting plate and a lifting cylinder are arranged above the mounting frame, the lifting plate is arranged at the driving end of the lifting cylinder, the lifting plate is fixedly connected to the mounting seat through a guide shaft, the mounting frame is slidably connected to the guide shaft, and the lifting cylinder drives the lifting plate and the mounting seat to move along the guide shaft.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the two sides of the air bag are sucked by the suction cup assembly to open the opening of the air bag to a certain width, and then the opening is expanded by the expansion assembly to facilitate subsequent liquid injection operations; the rotation of multiple opening rods is driven by the rack at the same time to quickly and stably complete the expansion operations of multiple product air bags, and the suction cup assembly and the expansion assembly are arranged on the same mounting base to facilitate the cooperation between the suction cup assembly and the expansion assembly to ensure the quality and efficiency of the expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is one of the three-dimensional structural schematic diagrams of the embodiment of the present application.

[0016] Figure 2 This is the second schematic diagram of the three-dimensional structure of the embodiment of the present application.

[0017] Figure 3 This is the third schematic diagram of the three-dimensional structure of the embodiment of the present application.

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the expansion rod according to an embodiment of the present application.

[0019] Reference numerals: 1, mounting seat; 11, avoidance hole; 12, slide rail; 13, slider;

[0020] 2. Suction cup assembly; 21. Suction cup rod; 22. Suction cup; 23. Driving motor; 24. Driving gear; 25. Gear row; 26. Connecting plate;

[0021] 3. flaring assembly; 31. lifting seat; 311. linear guide rail; 312. slide seat; 313. connecting block; 32. opening rod; 321. flaring part; 322. gear; 323. bearing; 324. bearing cover; 33. rack; 34. flaring drive member;

[0022] 4. Lifting drive assembly; 41. Fixing plate; 42. Lifting motor; 43. Lifting drive screw rod; 44. Lifting guide rail; 45. Column;

[0023] 5. Mounting frame; 51. Lifting plate; 52. Lifting cylinder; 53. Guide shaft; 54. Support column; 55. Top plate. DETAILED DESCRIPTION

[0024] The specific implementation modes of the present utility model are introduced with reference to the accompanying drawings.

[0025] refer to Figure 1 The figure is a schematic diagram of the three-dimensional structure of the expansion mechanism of the battery filling machine. The gantry in the figure is the mounting frame 5, and above the mounting frame 5 is the lifting cylinder 52. The lifting cylinder 52 drives the mounting seat 1 and the suction cup assembly 2 and the expansion assembly 3 below to move together. The suction cup assembly 2 sucks the two sides of the air bag to open the opening of the air bag, and the expansion assembly 3 is used to expand the opened opening, so that it is convenient for the subsequent injection, and the injection head can be smoothly inserted into the opening of the air bag.

[0026] refer to Figures 1 to 4, a flaring mechanism for a battery liquid filling machine, comprising a mounting seat 1, a suction cup assembly 2, a flaring assembly 3, a lifting drive assembly 4 and a mounting frame 5, the suction cup assembly 2 is arranged below the mounting seat 1, and the suction cup assembly 2 sucks the opening of the product to a certain width; the flaring assembly 3 is movably arranged on the mounting seat 1 through the lifting drive assembly 4, the flaring assembly 3 comprises a lifting seat 31, an opening rod 32, a rack 33 and a flaring drive member 34, the lifting seat 31 is connected to the lifting drive assembly 4, a plurality of opening rods 32 are arranged at intervals below the lifting seat 31, the rack 33 is movably arranged on the lifting seat 31, and is transmission-connected with the plurality of opening rods 32, and the driving end of the flaring drive member 34 is transmission-connected with the rack 33; the lifting drive assembly 4 drives the plurality of opening rods 32 to be inserted into the openings of the corresponding products respectively through the lifting seat 31, the flaring drive member 34 drives the plurality of opening rods 32 to rotate synchronously through the rack 33, and the flaring portion 321 at the lower end of the opening rod 32 rotates in the opening of the product to expand the opening of the product for liquid injection.

[0027] The expansion mechanism for the battery filling machine in the embodiment of the present application sucks the two sides of the air bag through the suction cup assembly 2, sucks the opening of the air bag to a certain width, and then expands the opening through the expansion assembly 3 to facilitate subsequent filling operations; the rack 33 simultaneously drives the rotation of multiple opening rods 32 to quickly and stably complete the expansion operation of multiple product air bags, and by arranging the suction cup assembly 2 and the expansion assembly 3 on the same mounting base 1, the suction cup assembly 2 and the expansion assembly 3 cooperate to ensure the quality and efficiency of the expansion.

[0028] In order to facilitate the insertion of the opening rod 32 into the air bag opening which is only opened to a certain width, in this embodiment, Figure 1 and Figure 4 , the expanded portion 321 is in a sheet shape.

[0029] It can be understood that, with such a configuration, the flared portion 321 has a smaller thickness and a width slightly larger than the diameter of the opening rod 32. When the suction cup assembly 2 sucks the opening of the air bag open, the width direction of the flared portion 321 is consistent with the length direction of the opening of the air bag, so that the flared portion 321 can be smoothly inserted into the opening of the air bag. In the process of the opening rod 32 rotating under the drive of the rack 33, the width direction of the flared portion 321 is changed from the length direction of the air bag opening to the width direction, thereby expanding the width of the opening of the air bag to the same as the width of the flared portion 321, which is beneficial for the harder flared portion 321 to deform the air bag and expand the opening of the air bag. After the flared portion 321 and the suction cup 22 of the suction cup assembly 2 are detached from the air bag, the opening of the air bag remains basically unchanged.

[0030] In order to realize the rotation of the opening rod 32, in this embodiment, reference Figures 1 to 4A bearing 323 and a gear 322 are coaxially arranged on the upper part of the opening rod 32. The bearing 323 is connected to the lifting seat 31. The gear 322 is meshed with the rack 33. The expansion drive member 34 drives the opening rod 32 to rotate through the rack 33 and the gear 322.

[0031] It should be further explained that a plurality of mounting holes for mounting the opening rod 32 are provided on the lifting seat 31, the bearing 323 of the opening rod 32 is located in the mounting hole, and the top end of the opening rod 32 is connected to the lifting seat 31 through the bearing cover 324, so that the opening rod 32 is stably mounted on the lifting seat 31.

[0032] It can be understood that, in this arrangement, the gear 322 is arranged at the upper part near the lifting seat 31, and is meshed with the rack 33 movably arranged on the lifting seat 31 for transmission. The transmission of the gear 322 and the rack 33 is fast and stable, ensuring that the expansion drive member 34 can drive multiple opening rods 32 to rotate at the same time, thereby improving the efficiency and quality of the expansion.

[0033] In order for the rack 33 to stably drive the opening rod 32 to rotate, in this embodiment, reference Figure 1 A linear guide 311 is provided on the lifting seat 31 , the rack 33 is connected to the slide seat 312 on the linear guide 311 through a connecting block 313 , and the flaring driving member 34 drives the rack 33 to move along the linear guide 311 .

[0034] It should be further explained that, in order to provide installation space for the lifting drive assembly 4 , two linear guide rails 311 are provided on the lifting seat 31 . The two linear guide rails 311 are arranged along the same straight line, and the rack 33 is connected to the slide seats 312 on the two linear guide rails 311 through a plurality of connecting blocks 313 .

[0035] It can be understood that, in such a configuration, the linear guide 311 is arranged on the side wall of the lifting seat 31, the rack 33 is located on the lower side of the lifting seat 31, and the linear guide 311 and the rack 33 are connected by the connecting block 313. The space at the side wall of the lifting seat 31 can be well utilized, providing a larger installation space for the rack 33 and the opening rod 32, which is convenient for installation and maintenance.

[0036] For the cooperation between the opening rod 32 and the suction cup assembly 2, in this embodiment, reference Figure 1 The mounting seat 1 is provided with avoidance holes 11 for a plurality of opening rods 32 to pass through up and down.

[0037] It is understandable that, with such a configuration, the opening rod 32 can pass up and down through the avoidance hole 11, so that the opening rod 32 can be set directly above the mounting seat 1, which facilitates the cooperation between the opening rod 32 and the suction cup assembly 2 directly below the mounting seat 1.

[0038] In order to drive the movement of the rack 33, in this embodiment, reference Figure 1 The expansion driving member 34 is a cylinder, which is fixed on the lifting seat 31 , and the driving end of the cylinder is connected to the rack 33 .

[0039] It is understandable that, with such an arrangement, the expansion drive member 34 adopts a cylinder to drive the rack 33 to move quickly and stably, and the cylinder occupies a smaller space, which is beneficial to the structural layout of the entire mechanism.

[0040] In order to drive the opening rod 32 to insert into the opening of the air bag, in this embodiment, Figure 1 and Figure 2 The lifting drive assembly 4 includes a fixed plate 41, a lifting motor 42, a lifting drive screw 43 and a lifting guide rail 44. The fixed plate 41 is fixed to the mounting seat 1 through a column 45. The lifting seat 31 is located between the fixed plate 41 and the mounting seat 1. The lifting motor 42 is installed on the fixed plate 41. The lifting drive screw 43 and the lifting guide rail 44 are arranged parallel to each other between the fixed plate 41 and the mounting seat 1. The lifting drive screw 43 is arranged at the driving end of the lifting motor 42 and is transmission-connected to the lifting seat 31. The lifting guide rail 44 is slidingly connected to the lifting seat 31. The lifting motor 42 drives the lifting seat 31 to move along the lifting guide rail 44 through the lifting drive screw 43.

[0041] It can be understood that, with such a configuration, the fixed plate 41 and the mounting seat 1 are fixed together by the column 45, and the lifting guide rail 44 is a linear optical axis. The linear optical axis and the column 45 together serve as a structural support between the fixed plate 41 and the mounting seat 1, ensuring that the lifting motor 42 and the lifting drive screw 43 can stably drive the lifting seat 31 to move along the lifting guide rail 44.

[0042] In order to suck open the opening of the air bag, in this embodiment, reference Figure 1 and Figure 3 The suction cup assembly 2 includes a suction cup rod 21, and a plurality of suction cups 22 connected to an external air source are arranged on the inner side of the suction cup rod 21. The two suction cup rods 21 are arranged in an open and close manner below the mounting base 1. The mounting base 1 is provided with a slide rail 12 and a drive motor 23. The suction cup rod 21 is slidably connected to the slide rail 12, and the drive motor 23 is transmission-connected to the suction cup rod 21. The drive motor 23 drives the suction cup rod 21 to move back and forth along the slide rail 12.

[0043] It can be understood that, with such a configuration, the two suction cup rods 21 are driven by the driving motor 23 to move in an opening and closing manner. When the two suction cup rods 21 are closed, the suction cups 22 on the two suction cup rods 21 can respectively suck the two sides of the air bag. Then, in the process of opening the two suction cup rods 21, the two sides of the air bag can be pulled toward both sides at the same time, and the pulling stops after a certain distance. Subsequently, the opening rod 32 is inserted into the opening of the air bag for expansion.

[0044] In order to quickly and stably drive the two suction cup rods 21 to open and close, in this embodiment, reference Figure 3 A driving gear 24 is provided at the driving end of the driving motor 23, and the driving gear 24 is transmission-connected to two gear rows 25. The two gear rows 25 are respectively connected to the two suction cup rods 21. The driving motor 23 drives the two suction cup rods 21 to open and close at the same time through the driving gear 24 and the two gear rows 25.

[0045] It should be further explained that the slide rail 12 is arranged at the lower side of the mounting seat 1, and the two suction cup rods 21 are respectively connected to the two sliders 13 on the slide rail 12, so that the two suction cup rods 21 move back and forth along the slide rail 12, and the tooth row 25 is fixedly connected to the suction cup rod 21 through the connecting plate 26, and the tooth row 25 and the suction cup rod 21 are arranged perpendicular to each other, and the two tooth rows 25 are arranged parallel to each other on both sides of the driving gear 24, and the tooth row 25 and the slide rail 12 are parallel to each other.

[0046] It is understandable that, with such a configuration, when the driving motor 23 drives the driving gear 24 to rotate, the driving gear 24 will drive the two gear rows 25 to move in opposite directions respectively, thereby driving the two suction cup rods 21 to move in opposite directions, causing the two suction cup rods 21 to perform an opening and closing movement.

[0047] In order to drive the mounting base 1, the suction cup assembly 2, and the flaring assembly 3 to move together, in this embodiment, reference Figure 1 to Figure 2 The mounting seat 1 is located below the mounting frame 5, and a lifting plate 51 and a lifting cylinder 52 are arranged above the mounting frame 5. The lifting plate 51 is arranged at the driving end of the lifting cylinder 52. The lifting plate 51 is fixedly connected to the mounting seat 1 through a guide shaft 53. The mounting frame 5 is slidably connected to the guide shaft 53. The lifting cylinder 52 drives the lifting plate 51 and the mounting seat 1 to move along the guide shaft 53.

[0048] It can be understood that, in such a configuration, a top plate 55 is fixed above the mounting frame 5 by four support columns 54, the lifting cylinder 52 is installed on the top plate 55, the lifting plate 51 is located between the top plate 55 and the mounting frame 5, the driving end of the lifting cylinder 52 is connected to the lifting plate 51, the lifting cylinder 52 directly drives the lifting plate 51, and the lifting plate 51 pulls the mounting seat 1 through the guide shaft 53, so that the lifting cylinder 52 drives the mounting seat 1 below and the suction cup assembly 2 and the flaring assembly 3 to move together, so that the suction cup assembly 2 and the flaring assembly 3 are lifted and lowered synchronously.

[0049] It should be further explained that eight opening rods 32 and eight pairs of suction cups 22 are provided in the embodiment of the present application, so that eight battery cell air bags can be expanded at the same time. This number is not fixed and the corresponding number can be increased or decreased according to the needs of the production line to meet the needs of different customers.

[0050] The working process of the embodiment of the present application is as follows: the eight battery cells are moved to the bottom of the expanding mechanism, the lifting cylinder 52 drives the mounting seat 1 and the suction cup assembly 2 and the expanding assembly 3 to descend to the working height, the two driving motors 23 drive the two suction cup rods 21 to close together, so that the suction cups 22 on the two suction cup rods 21 suck the two sides of the air bag, the two driving motors 23 drive the two suction cup rods 21 to open, and open the air bag opening to a certain width, the lifting motor 42 drives the lifting seat 31 to descend to the set position, and drives the eight opening rods 32 to be inserted into the corresponding air bag openings, the cylinder drives the eight opening rods 32 to rotate simultaneously through the rack 33 to expand the mouth, and after the expansion is completed, the opening rods 32 and the suction cup rods 21 are reset.

[0051] The embodiment of the present application uses the suction cup assembly 2 to suck the two sides of the air bag, sucks the opening of the air bag to a certain width, and then expands the opening through the expansion assembly 3 to facilitate subsequent liquid injection operations; the rack 33 simultaneously drives the rotation of multiple opening rods 32 to quickly and stably complete the expansion operation of multiple product air bags, thereby improving the efficiency of the expansion operation.

[0052] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A flaring mechanism for a battery filling machine, characterized in that: The invention comprises a mounting seat, a suction cup assembly, a flaring assembly and a lifting and driving assembly, wherein the suction cup assembly is arranged below the mounting seat, and the suction cup assembly sucks the opening of the product to a certain width; the flaring assembly is movably arranged on the mounting seat through the lifting and driving assembly, and the flaring assembly comprises a lifting seat, an opening rod, a rack and a flaring driving member, the lifting seat is connected to the lifting and driving assembly, and a plurality of opening rods are arranged at intervals below the lifting seat, the rack is movably arranged on the lifting seat and is drivingly connected with the plurality of opening rods, and the driving end of the flaring driving member is drivingly connected with the rack; the lifting and driving assembly drives the plurality of opening rods to be respectively inserted into the openings of the corresponding products through the lifting seat, and the flaring driving member drives the plurality of opening rods to rotate synchronously through the rack, and the flaring portion at the lower end of the opening rod rotates in the opening of the product to expand the opening of the product for liquid injection.

2. The expansion mechanism for a battery filling machine according to claim 1, characterized in that: The flared portion is in a sheet shape.

3. The expansion mechanism for a battery filling machine according to claim 1, characterized in that: A bearing and a gear are coaxially arranged on the upper part of the opening rod, the bearing is connected to the lifting seat, the gear is meshed with the rack, and the expansion drive member drives the opening rod to rotate through the rack and the gear.

4. The expansion mechanism for a battery filling machine according to claim 1, characterized in that: The lifting seat is provided with a linear guide rail, the rack is connected to the slide seat on the linear guide rail through a connecting block, and the flaring driving member drives the rack to move along the linear guide rail.

5. The expansion mechanism for a battery liquid filling machine according to claim 1, characterized in that: The mounting seat is provided with avoidance holes for a plurality of opening rods to pass through up and down.

6. The expansion mechanism for a battery liquid filling machine according to claim 1, characterized in that: The expansion drive member is a cylinder, which is fixed on a lifting seat, and a drive end of the cylinder is connected to a rack.

7. The expansion mechanism for a battery liquid filling machine according to claim 1, characterized in that: The lifting drive assembly includes a fixed plate, a lifting motor, a lifting drive screw and a lifting guide rail. The fixed plate is fixed to the mounting seat through a column. The lifting seat is located between the fixed plate and the mounting seat. The lifting motor is installed on the fixed plate. The lifting drive screw and the lifting guide rail are arranged parallel to each other between the fixed plate and the mounting seat. The lifting drive screw is arranged at the driving end of the lifting motor and is transmission-connected to the lifting seat. The lifting guide rail is slidingly connected to the lifting seat. The lifting motor drives the lifting seat to move along the lifting guide rail through the lifting drive screw.

8. The expansion mechanism for a battery filling machine according to claim 1, characterized in that: The suction cup assembly includes a suction cup rod, a plurality of suction cups connected to an external air source are arranged on the inner side of the suction cup rod, two suction cup rods are arranged in an opening and closing manner below the mounting seat, the mounting seat is provided with a slide rail and a drive motor, the suction cup rod is slidably connected to the slide rail, the drive motor is transmission-connected to the suction cup rod, and the drive motor drives the suction cup rod to move back and forth along the slide rail.

9. The expansion mechanism for a battery liquid filling machine according to claim 8, characterized in that: The driving end of the driving motor is provided with a driving gear, and the driving gear is transmission-connected with two gear rows, and the two gear rows are respectively connected to two suction cup rods. The driving motor drives the two suction cup rods to open and close at the same time through the driving gear and the two gear rows.

10. The expansion mechanism for a battery liquid filling machine according to claim 1, characterized in that: It also includes a mounting frame, the mounting seat is located below the mounting frame, a lifting plate and a lifting cylinder are arranged above the mounting frame, the lifting plate is arranged at the driving end of the lifting cylinder, the lifting plate is fixedly connected to the mounting seat through a guide shaft, the mounting frame is slidably connected to the guide shaft, and the lifting cylinder drives the lifting plate and the mounting seat to move along the guide shaft.

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