Button cell assembling equipment

Abstract

The invention relates to the field of manufacturing of non-aqueous electrolyte storage batteries, in particular to button cell assembling equipment which comprises a cell assembling station and a cell reprocessing station which are carried by a conveying belt, cell raw materials are assembled and formed on the cell assembling station, a station rotating disc is arranged at the cell reprocessing station, and the battery reprocessing station is connected with the station rotating disc. According to the battery assembling and reprocessing device, the battery assembling station and the battery reprocessing station are connected through the conveying belt, after button battery raw materials are assembled at the battery assembling station through the battery assembling mechanism, the battery reprocessing station is connected with the battery assembling station through the battery reprocessing mechanism, and the battery reprocessing station is connected with the battery assembling station through the battery reprocessing mechanism. The button cells are conveyed to the station rotating disc of the cell reprocessing station through the conveying belt, the button cells are stacked on the bearing seat of the station rotating disc through the material moving assembly, the stacked button cells are driven by rotation of the station rotating disc to be subjected to the procedures of film sleeving, heating shrinkage and the like till discharging, and therefore connection of the machining procedures is smoother.

Description

Technical Field

[0001] The invention relates to the field of non-aqueous electrolyte storage battery manufacturing, in particular to button-type battery assembly equipment. Background Art

[0002] Button cell, also known as coin cell, is a non-aqueous electrolyte storage battery, which means that its electrolyte is not an aqueous solution but an electrolyte system formed by organic solvents or inorganic non-aqueous solutions as solvents. This electrolyte system plays a key role in ion conduction in the battery, enabling the battery to carry out charge and discharge reactions without relying on aqueous solutions.

[0003] Button batteries supplied to downstream industries for direct use usually include single batteries and stacked batteries. Stacked batteries are usually used to fill the gap in battery size, and also make it more convenient when multiple single batteries are needed. However, the existing button battery assembly and production process mainly focuses on the production process of single batteries. There is a lack of working equipment that can directly connect multiple button batteries to be stacked and combined into an integrated form after the production of a single battery is completed. In addition, there is also a workpiece transfer structure for connecting single button batteries to stacked combinations, which causes inconvenience to existing processing and production. Summary of the invention

[0004] In view of the above-mentioned problem of lack of working equipment that integrates the battery assembly production and reprocessing steps, and a transfer structure that cooperates with the equipment, the present invention provides a button battery assembly equipment, the structure of which includes a machine base, a conveyor belt, and a battery assembly station and a battery reprocessing station that are arranged on the machine base and supported by the conveyor belt. The battery assembly station is provided with a battery combination mechanism and includes a material tray for holding battery raw materials, a processing seat for placing materials for processing, and a material taking arm for taking and discharging materials. The machine base is also provided with a liquid injection mechanism for adding non-aqueous electrolyte solution to the battery raw materials placed on the processing seat. A material pressing head is provided above the processing seat for pressing and molding the battery raw materials into a battery body. The battery body formed on the processing seat is transferred to the conveyor belt in front of the material tray via the material taking arm, and the battery body is moved to the battery reprocessing station via the conveyor belt. A station turntable is provided at the processing station, and a material transfer station, a film covering station, a heating station and a material unloading station are divided through the station turntable. A plurality of supporting seats are arranged around the station turntable. The battery body on the conveyor belt is transferred to the supporting seat by a material transfer assembly at the material transfer station; a plurality of battery bodies are placed on the supporting seat and the battery bodies are vertically stacked on the supporting seat, and a plurality of stacked battery bodies are embedded with heat shrinkable film at the film covering station, and the heat shrinkable film is shrunk and wrapped around the stacked battery bodies through the heating station; the material transfer assembly includes a transposition shaft driven by a rotary lifting mechanism, a side expansion arm extended to both sides of the transposition shaft, and a transposition suction cup arm connected to a negative pressure system installed on the side expansion arm, the side expansion arms on both sides of the transposition shaft respectively adsorb the battery body on the conveyor belt and place the battery body on the supporting seat, and the side expansion arms on both sides are rotated by the transposition shaft to perform position conversion.

[0005] Furthermore, the material shifting assembly is divided into a belt side and a disk side according to the different orientations of the conveyor belt and the workstation turntable by the side expansion arm, and the rotating lifting mechanism drives the transposition shaft to rotate so that the side expansion arm can switch its position between the belt side and the disk side, and drives the transposition shaft to lift and lower so that the transposition suction cup arm is close to the conveyor belt and the workstation turntable; the material shifting assembly also includes a first horizontal platform and a second horizontal platform, the first horizontal platform is horizontally mounted on the transposition shaft, a guide column is provided at the bottom end of the side expansion arm and the guide column is vertically slidably mounted on the first horizontal platform, the second horizontal platform is installed above the first horizontal platform, and a compression spring is provided between the second horizontal platform and the side expansion arm to provide a downward elastic force for the side expansion arm.

[0006] Furthermore, the material moving assembly also includes an appropriate height assembly, which includes a bracket and a high-position variable disk movably mounted on the bracket, the top of the high-position variable disk includes end faces at different heights, and the end face at a high position is used to support the guide column on the disk side; the end face at the top of the high-position variable disk includes a flat portion and a high portion, and the vertical spacing between two adjacent end faces at different horizontal heights is greater than or equal to the thickness of the battery body, and the guide column of the side expansion arm descending on the disk side contacts with the high portion, and then stops descending at a horizontal height higher than the side expansion arm on the belt side; the high-position variable disk is driven by the rotating drive structure and follows the rotation of the transposition shaft to perform position conversion, so that the end faces at different heights are moved to the bottom end of the guide column on the disk side.

[0007] Furthermore, the high-position change disk is annular and eccentrically arranged with respect to the transposition shaft, and the distance between the inner edge of the high-position change disk and the transposition shaft on the belt position side is smaller than the distance between the disk position side and the transposition shaft; the flat portion and the high-position portion are arranged in an annular range on the top surface of the high-position change disk, and the width of the annular range is smaller than the distance between the guide column on the belt position side and the transposition shaft.

[0008] Furthermore, three or more end faces at different heights are provided at the top of the high-position variable disk, and the appropriate height component also includes a transfer lever arm, which is rotatably mounted on the bottom end of the bracket, and the position of the transfer lever arm on the bracket includes a basic position and an extreme position, and an elastic member is provided between the transfer lever arm and the bracket to provide the transfer lever arm with elastic force to reset it to the basic position; a lower shift block is provided at the bottom end of the transfer lever arm, and an upper side branch is provided on the transposition shaft, and the rotation of the transposition shaft drives the upper side branch to contact the lower shift block and thereby drives the transfer lever arm to rotate; an upper shift tooth is provided at the top of the transfer lever arm that bounces upward, and a ratchet surface is provided on the bottom surface of the high-position variable disk, and the ratchet surface is surrounded by a plurality of unidirectional ratchets, and the rotation of the transfer lever arm drives the upper shift tooth to shift the ratchet surface to rotate the high-position variable disk, thereby moving the end faces of different heights to the bottom end of the guide column on the disk position side.

[0009] Furthermore, the bracket is provided with a accommodating chamber and a biting bead is provided in the accommodating chamber through a top spring, and the top spring provides an elastic force to drive the biting bead upward; the bottom surface of the high-position variable disk is provided with a biting hole that engages with the biting bead, and the number of the biting holes is equal to the sum of the number of the horizontal part and the high-position part.

[0010] Furthermore, blocking structures are provided on the bracket at the basic position and the extreme position of the transfer arm; the lower shift block is made of rubber material, and after the transposition shaft drives the transfer arm to move to the extreme position, the side branches on the shaft squeeze the lower shift block and then cross the lower shift block to continue rotating.

[0011] Furthermore, the angle between the lines connecting the basic position and the extreme position and the rotation center of the transfer arm is smaller than the angle between the line connecting the engagement hole and the rotation center of the transfer arm.

[0012] Furthermore, the engagement hole is provided with a span edge on the side having the same rotation direction as the transposition shaft, and the span edge is provided with a sliding groove extending toward the next engagement hole in the rotation direction of the transposition shaft, the engagement bead abuts against the sliding groove, and the horizontal height of the sliding groove on the side of the span edge is lower than the horizontal height on the side of the next engagement hole.

[0013] Furthermore, the material picking arm includes an air dividing cross arm and a plurality of material picking suction cup arms mounted on the air dividing cross arm, the air dividing cross arm is connected to an external negative pressure device, a material trough is provided on the material tray, and the number of the material picking suction cup arms is greater than or equal to the number of the material troughs.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention sequentially arranges a battery assembly station and a battery reprocessing station, and the battery assembly station and the battery reprocessing station are connected by a conveyor belt. After the button battery raw materials are assembled by a battery combination mechanism at the battery assembly station, they are transported to the station turntable of the battery reprocessing station by a conveyor belt, and the button batteries are stacked on the supporting seat of the station turntable by using a material transfer assembly. The stacked button batteries are driven by the rotation of the station turntable to undergo film coating, heating and shrinking processes until unloading, thereby making the connection of the processing processes smoother.

[0016] In addition, the technical solution of the present invention also has the following beneficial effects:

[0017] The present invention arranges the side arm and the transposition shaft to be movable, so that the transposition suction cup arm can adapt to the height of the button batteries when stacking the button batteries on the disc side, and further provides a high-position variable disc below the side arm, which is driven by a rotary driving structure to rotate along with the rotation of the transposition shaft, so that the end surfaces of different horizontal heights on the high-position variable disc are moved to the bottom of the side arm in turn, and the side arm on which the button batteries are to be stacked is height-limited, so that the transposition suction cup arm does not need to squeeze the battery downward, and the battery can be stacked on the previous battery at a suitable height, thereby reducing the squeezing of the originally stacked batteries, and when the number of stacked batteries is large, the displacement of the lower battery can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a button battery assembly device of the present invention.

[0019] Figure 2 It is a schematic diagram of the overall structure of the battery assembly mechanism of the present invention and a partial schematic diagram of the material taking arm and the liquid injection mechanism.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the material taking arm and the moving assembly of the present invention.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the conveyor belt and the battery reprocessing station of the present invention.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the material shifting assembly of the material shifting station of the present invention and a schematic diagram of the eccentric setting of the high-position variable disk and the transposition rotating shaft.

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the height-appropriate component of the present invention.

[0024] Figure 7 It is a schematic diagram of stacking the high-position variable disk and the position-changing suction cup arm of the present invention.

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the height-adjustable component of the present invention and a schematic diagram of the local structure of the cooperation between the spanning edge and the sliding tilting groove and the biting bead.

[0026] In the figure: A, battery body; 1, machine base; 2, conveyor belt; 3, battery assembly mechanism; 4, station turntable; 5, material transfer station; 6, film covering station; 7, heating station; 8, material unloading station;

[0027] 21. Guide frame; 31. Material tray; 32. Processing seat; 33. Material taking arm; 34. Moving assembly; 35. Liquid injection mechanism; 36. Material combining press head; 41. Bearing seat; 51. Transposition shaft; 52. Rotating lifting mechanism; 53. Side arm; 54. Transposition sucker arm; 55. First horizontal platform; 56. Second horizontal platform; 57. Pressure spring; 58. Appropriate height assembly;

[0028] 31a, material trough; 331, gas distribution cross arm; 332, material taking suction cup arm; 341, first slide; 342, column; 343, second slide; 344, output slide; 351, injection stand; 352, injection head; 353, liquid injection cylinder; 511, side branch on the shaft; 531, guide column;

[0029] 581, bracket; 582, high position variable plate; 583, transfer arm; 584, lower block;

[0030] 585, upper shifting tooth; 586, biting bead; 587, top spring;

[0031] 582a, ratchet surface; 582b, flat portion; 582c, high portion; 582d, engagement hole; 582e, span edge; 582f, sliding tilt groove. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention.

[0033] Examples, such as Figure 1-Figure 8 As shown: The present invention provides a button battery assembly device, which structure includes a base 1, a conveyor belt 2, and a battery assembly station and a battery reprocessing station arranged on the base 1 and carried by the conveyor belt 2. The battery assembly station is the starting point, where the raw materials of the battery are assembled, and then the battery is transported to the battery reprocessing station by the conveyor belt 2, and the battery is stacked and coated, so that multiple batteries can be combined together for testing and use;

[0034] For the battery assembly station, a battery assembly mechanism 3 is provided on the battery assembly station and includes a material tray 31 for holding battery raw materials, a processing seat 32 for placing materials for processing, and a material taking arm 33 for taking and releasing materials. The material taking arm 33 includes a gas dividing cross arm 331 and a plurality of material taking suction cup arms 332 installed on the gas dividing cross arm 331. The gas dividing cross arm 331 is connected to an external negative pressure device. A material trough 31a is provided on the material tray 31. The number of the material taking suction cup arms 332 is greater than or equal to the number of the material troughs 31a. The material taking suction cup arms 332 are driven by a moving assembly 34. The moving assembly 34 includes a horizontally arranged on the machine base 1 The first slide 341 on the machine base 1, the column 342 vertically arranged on the first slide 341, the second slide 343 slidably mounted on the column 342 and the output slide 344 slidably mounted on the second slide 343, the first slide 341 is driven by a cylinder or a motor screw to move on the machine base 1, the second slide 343 is driven by a cylinder or a motor screw to move on the column 342, the output slide 344 is driven by a transmission belt or a motor screw to move on the second slide 343, and the gas dividing cross arm 331 is installed on the output slide 344, the button battery raw materials on the trough 31a are adsorbed and placed on the processing seat 32 in sequence;

[0035] The button cell raw materials include a positive electrode shell, a positive electrode sheet, a sealing ring, a diaphragm, a negative electrode sheet, a negative electrode cover, etc., and a liquid injection mechanism 35 is also provided on the machine base 1. The liquid injection mechanism 35 includes an injection frame 351 and an injection head 352 driven by a liquid injection cylinder 353. The non-aqueous electrolyte solution is added to the battery raw materials placed on the processing seat 32 through the injection head 352, specifically, it is added to the positive electrode shell. After the button cell raw materials are added to the last negative electrode cover, a material combination press head 36 is provided above the processing seat 32, and the material combination press head 36 descends to press and form the battery raw materials into a battery body A. The battery body A formed on the processing seat 32 is transferred to the conveyor belt 2 in front of the material tray 31 across the material tray 31 through the material suction cup arm 332 of the material taking arm 33, and the battery body A is moved to the battery reprocessing station through the conveyor belt 2;

[0036] In this embodiment, a guide frame 21 is provided on the conveyor belt 2 for guiding the button batteries on the conveyor belt 2 so that they are gathered at a required position before the battery reprocessing station.

[0037] For the battery reprocessing station, a station turntable 4 is provided at the battery reprocessing station, and a material transfer station 5, a film coating station 6, a heating station 7 and a material unloading station 8 are provided through the station turntable 4. A plurality of supporting seats 41 are arranged around the station turntable 4. The battery body A on the conveyor belt 2 is transferred to the supporting seat 41 by a material transfer assembly at the material transfer station 5. In the present embodiment, a plurality of battery bodies A are placed on the supporting seat 41 and the battery bodies A are vertically stacked on the supporting seat 41. The stacked battery bodies A are nested with heat shrinkable films at the film coating station 6, and the heat shrinkable films are shrunk and wrapped around the stacked battery bodies A by the heating station 7. Subsequently, a push plate is added at the unloading station 8 through a cylinder to drive the battery body A to be pushed down from the supporting seat 41. It should be noted that those skilled in the art can adopt existing technical means to implement the requirements of the film coating station 6 and the heating station 7.

[0038] As for the material shifting assembly, the material shifting assembly includes a transposition rotating shaft 51 driven by a rotating lifting mechanism 52, a side expansion arm 53 installed on the transposition rotating shaft 51 and extending to both sides, and a transposition suction cup arm 54 installed on the side expansion arm 53 and connected to the negative pressure system. The material shifting assembly is divided into a belt position side and a disk position side according to the different directions of the conveyor belt 2 and the station turntable 4 through the side expansion arm 53. The rotating lifting mechanism 52 drives the transposition rotating shaft 51 to rotate so that the side expansion arm 53 is switched between the belt position side and the disk position side, and drives the transposition rotating shaft 51 to rise and fall so that the transposition The suction cup arm 54 is close to the conveyor belt 2 and the workstation turntable 4. The rotary lifting mechanism 52 includes a transposition motor and a transposition cylinder. The transposition motor and the transposition shaft 51 are connected by belt transmission. The transposition cylinder is arranged below the transposition shaft 51, so that the transposition shaft 51 can be driven to rotate and to be lifted. The side arms 53 on both sides of the transposition shaft 51 respectively adsorb the battery body A on the conveyor belt 2 and place the battery body A on the bearing seat 41, and the side arms 53 on both sides are rotated by the transposition shaft 51 to perform position conversion;

[0039] In this embodiment, the material moving assembly also includes a first horizontal platform 55 and a second horizontal platform 56. The first horizontal platform 55 is horizontally installed on the transposition shaft 51. A guide column 531 is provided at the bottom end of the side expansion arm 53 and the guide column 531 is vertically slidably installed on the first horizontal platform 55. The second horizontal platform 56 is installed above the first horizontal platform 55. A compression spring 57 is provided between the second horizontal platform 56 and the side expansion arm 53 to provide a downward elastic force for the side expansion arm 53. When the side expansion arm 53 is used in basic use, when the second battery is stacked on the battery body A on the bearing seat 41, it can be directly lowered. The descending transposition sucker arm 54 is restricted in position, so that the transposition sucker arm 54 and the side extension arm 53 on the tray side are pressed on the two battery bodies A while the transposition shaft 51 continues to descend. When it descends to the point where the transposition sucker arm 54 on the belt side is adsorbed onto the battery body A on the conveyor belt 2, the transposition shaft 51 rises. At this time, the battery body A on the tray side has been placed on the first battery. If only two batteries need to be stacked, the station turntable 4 can move slowly and then move to replace the carrier 41 at the required speed. If multiple batteries are needed, the continuously rotating transposition shaft 51 can continue to perform the stacking operation.

[0040] In this embodiment, the material moving assembly further includes a height adjustment assembly 58, which includes a bracket 581 and a high-position variable disk 582 movably mounted on the bracket 581. The top of the high-position variable disk 582 includes end faces of different heights. The end faces at a high position are used to support the guide column 531 on the disk side, so that the transposition suction cup arm 54 for stacking the battery body A on the disk side does not need to apply additional pressure to the originally stacked battery body A, thereby preventing the battery body A from being misplaced or falling off. In this embodiment, the high-position variable disk 582 includes end faces of different heights. The end faces at a high position are used to support the guide column 531 on the disk side, so that the transposition suction cup arm 54 for stacking the battery body A on the disk side does not need to apply additional pressure to the originally stacked battery body A, thereby preventing the battery body A from being misplaced or falling off. The end surface at the top of 82 includes a flat portion 582b and a high portion 582c. The vertical spacing between two adjacent end surfaces at different levels is greater than or equal to the thickness of the battery body A. The guide column 531 of the side arm 53 descending on the tray side contacts the high portion 582c, and then stops descending at a level higher than the side arm 53 on the belt side. The high-position variable disk 582 is driven by the rotary drive structure and rotates with the transposition shaft 51 to perform position conversion, so that the end surfaces at different heights move to the bottom of the guide column 531 on the tray side.

[0041] It should be noted that the high-position variable disk 582 is annular and eccentrically arranged with respect to the transposition rotating shaft 51. The distance between the inner edge of the high-position variable disk 582 and the transposition rotating shaft 51 on the belt position side is smaller than the distance between the inner edge of the high-position variable disk 582 and the transposition rotating shaft 51 on the disk position side. The flat portion 582b and the high-position portion 582c are arranged in an annular range on the top surface of the high-position variable disk 582. The width of the annular range is smaller than the distance between the guide column 531 on the belt position side and the transposition rotating shaft 51. Because the side arm 53 on the belt position side does not need to be changed in height, when the flat portion 582b at a low position is rotated to the disk position side, the high-position portion 582c on the belt position side is avoided from affecting the side arm 53 on the belt position side.

[0042] It should be noted that the number of end faces at different heights at the top of the high-position variable disk 582 corresponds to the button batteries to be stacked, and is usually provided with two or more. When two battery bodies A need to be stacked, the end faces at different heights at the top of the high-position variable disk 582 are provided with two or multiples of two. In this embodiment, the end faces at different heights at the top of the high-position variable disk 582 are provided with three, so there are two high-position parts 582c, and the latter high-position part 582c is one level higher than the previous high-position part 582c. The difference of the one level is the vertical spacing between two adjacent end faces at different horizontal heights, and is greater than or equal to the thickness of the battery body A.

[0043] Moreover, for the rotational driving structure part that drives the high-position variable disk 582 to rotate, the suitable height component 58 also includes a transfer arm 583, which is rotatably mounted at the bottom end of the bracket 581, and the position of the transfer arm 583 on the bracket 581 includes a basic position and an extreme position. The bracket 581 is provided with a blocking structure at the basic position and the extreme position of the transfer arm 583, and an elastic member is provided between the transfer arm 583 and the bracket 581 to provide the transfer arm 583 with elastic force to reset it to the basic position; a lower shifting block 584 is provided at the bottom end of the transfer arm 583, and an upper lateral branch 511 is provided on the transposition shaft 51. The rotation of the transposition shaft 51 drives the upper lateral branch 511 to contact the lower shifting block 584 and then drives the transfer arm 583 to rotate; an upper shifting tooth 585 that pops up upward is provided at the top of the transfer arm 583. The shifting tooth 585 is driven by the torsion spring to bounce upward, and a ratchet surface 582a is provided on the bottom surface of the high-position variable disk 582, and the side branches 511 on the shaft are provided on both sides of the transposition shaft 51, and the ratchet surface 582a is surrounded by a plurality of unidirectional ratchets. The transfer shifting arm 583 rotates to drive the upper shifting tooth 585 to shift the ratchet surface 582a to rotate the high-position variable disk 582, thereby converting the rotation of the transposition shaft 51 into the rotation of the high-position variable disk 582, and the end faces of different heights are moved to the bottom end of the guide column 531 on the disk side with the position change of the transposition shaft 51, such as the bottom end of the guide column 531 on the disk side is successively rotated to the flat part 582b, the high part 582c and the high part 582c one level higher than the previous high part 582c, so that the side arm 53 on the disk side can sequentially stack three heights of battery bodies A from bottom to top;

[0044] It should be noted that the lower shifting block 584 is made of rubber. After the transposition shaft 51 drives the transfer arm 583 to move to the limit position through the shaft side branch 511, the shaft side branch 511 squeezes the lower shifting block 584 and then crosses the lower shifting block 584 to continue rotating;

[0045] As for the rotary drive structure, in this embodiment, a housing chamber is provided on the bracket 581 and a bite bead 586 is provided in the housing chamber through a top spring 587. It is known that the housing chamber can be provided by adding a shell or slotting the bracket 581. The top spring 587 provides an elastic force to drive the bite bead 586 upward, and the bottom surface of the high-position variable disk 582 is provided with a bite hole 582d engaged with the bite bead 586. The number of the bite holes 582d is equal to the sum of the number of the flat portion 582b and the high portion 582c, so that the high-position variable disk 582 can be stably in the desired position after rotation.

[0046] Moreover, the angle between the basic position and the limit position and the line connecting the rotation center of the transfer arm 583 is smaller than the angle between the bite hole 582d and the rotation center of the transfer arm 583. In the present embodiment, the total number of bite holes 582d following the horizontal portion 582b and the high portion 582c is three, and the angle is 120 degrees. Therefore, the angle between the basic position and the limit position and the line connecting the rotation center of the transfer arm 583 is smaller than 120 degrees. Moreover, in the present embodiment, the bite hole 582d is provided with a cross-position edge 582e on the side having the same rotation direction as the transposition shaft 51, and the cross-position edge 582e is provided with a downward direction on the rotation direction of the transposition shaft 51. The sliding inclined groove 582f extends from a bite hole 582d, and the bite bead is against the sliding inclined groove 582f. The horizontal height of the sliding inclined groove 582f on the side of the span edge 582e is lower than the horizontal height on the side of the next bite hole 582d. Therefore, when the side branch 511 on the axis drives the transfer arm 583 to start rotating and the transfer arm 583 crosses the span edge 582e, the bite bead 586 can apply pressure to the inclined groove surface on the sliding inclined groove 582f, so that the high-position variable disk 582 has a tendency to rotate due to the squeeze of the bite bead 586 and the top spring 587, allowing the high-position variable disk 582 to rotate better and rotate to the next required one.

[0047] When the material transfer assembly is implemented, the rotating lifting mechanism 52 drives the side arms 53 on both sides of the transposition shaft 51 to point to the conveyor belt 2 on the belt side and the bearing seat 41 on the workstation turntable 4 on the disk side, and then the rotating lifting mechanism 52 drives the transposition shaft 51 to descend, so that the transposition suction cup arm 54 on the side arm 53 on the belt side descends and adsorbs the battery body A on the conveyor belt 2. At this time, the high-position variable disk 582 on the disk side is in the flat position 582b, and then the transposition shaft 51 rises and then rotates, so that the transposition suction cup arm 54 that has taken the battery body A is transferred to the bearing seat 41, and then descends, the transposition suction cup arm 54 on the disk side releases the battery body A and the transposition suction cup arm 54 on the belt side adsorbs the new battery body A, and then the transposition shaft 51 rises and then rotates;

[0048] During the rotation, the side branches 511 on the shaft abut against the lower shifting block 584 to drive the transfer arm 583 to rotate. The transfer arm 583 drives the high-position variable disk 582 to rotate to a desired angle by abutting against the upper shifting tooth 585 and the ratchet surface 582a. At the same time, the biting bead 586 exerts pressure on the inclined groove surface on the sliding inclined groove 582f, so that the high-position variable disk 582 can rotate better. After the transposition shaft 51 drives the transfer arm 583 to move to the limit position through the side branches 511 on the shaft, the side branches 511 on the shaft squeeze the lower shifting block 584 and then cross the lower shifting block 584 to continue rotating. The lever arm 583 rebounds and returns to the basic position, and the flat portion 582b on the high-position variable disk 582 is converted to the high-position portion 582c of the next level, and then the rotating lifting mechanism 52 drives the transposition shaft 51 to descend, and the guide column 531 on the side arm 53 on the descending disk side abuts against the high-position portion 582c and stops descending, and at the same time, the battery body A is placed on the previous battery body A on the supporting seat 41, and the transposition suction cup arm 54 on the belt side normally absorbs the battery body A on the conveyor belt 2, and then continues to rotate to perform the next pick-and-place operation until the required number of battery bodies A is stacked;

[0049] Finally, the station turntable 4 can move slowly and then move to replace the supporting seat 41 at the required speed. The slow start speed will not cause the battery to shake, and then the battery is allowed to enter the film coating station 6 and the heating station 7 until unloading.

[0050] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A button battery assembly device, characterized in that: The structure includes a machine base, a conveyor belt, and a battery assembly station and a battery reprocessing station arranged on the machine base and carried by the conveyor belt. The battery assembly station is provided with a battery combination mechanism and includes a material tray for holding battery raw materials, a processing seat for placing materials for processing, and a material taking arm for taking and discharging materials. The machine base is also provided with a liquid injection mechanism for adding non-aqueous electrolyte solution to the battery raw materials placed on the processing seat. A material combination press head is provided above the processing seat for pressing and molding the battery raw materials into a battery body. The battery body formed on the processing seat is transferred to the conveyor belt in front of the material tray through the material taking arm, and the battery body is moved to the battery reprocessing station through the conveyor belt; The battery reprocessing station is provided with a station turntable, and a material transfer station, a film coating station, a heating station and a material unloading station are provided through the station turntable. A plurality of bearing seats are arranged around the station turntable. The battery body on the conveyor belt is transferred to the bearing seat by a material transfer assembly at the material transfer station; A plurality of battery bodies are placed on the support seat and are stacked vertically on the support seat, a heat shrink film is embedded in the stacked battery bodies at the film wrapping station, and the heat shrink film is shrunk and wrapped around the stacked battery bodies at the heating station; The material transfer assembly includes a transposition shaft driven by a rotating lifting mechanism, side arms mounted on the transposition shaft and extending to both sides, and a transposition suction cup arm mounted on the side arms and connected to the negative pressure system. The side arms on both sides of the transposition shaft respectively adsorb the battery body on the conveyor belt and place the battery body on the supporting seat, and the side arms on both sides are rotated by the transposition shaft to change their positions.

2. The button battery assembly device according to claim 1, characterized in that: The material transfer assembly is divided into a belt side and a disk side by the side expansion arm according to the different directions of the conveyor belt and the station turntable. The rotary lifting mechanism drives the transposition shaft to rotate so that the side expansion arm switches positions between the belt side and the disk side, and drives the transposition shaft to rise and fall so that the transposition suction cup arm is close to the conveyor belt and the station turntable. The material moving assembly also includes a first cross platform and a second cross platform. The first cross platform is horizontally installed on the transposition shaft. A guide column is provided at the bottom end of the side expansion arm and the guide column is vertically slidably installed on the first cross platform. The second cross platform is installed above the first cross platform. A compression spring is provided between the second cross platform and the side expansion arm to provide a downward elastic force for the side expansion arm.

3. The button battery assembly device according to claim 2, characterized in that: The material moving assembly also includes a height adjustment assembly, which includes a bracket and a high-position variable disk movably mounted on the bracket, and the top of the high-position variable disk includes end surfaces at different heights, and the end surface at a high position is used to support the guide column at the disk side; The end surface of the top of the high-position variable disk includes a flat portion and a high portion, and the vertical spacing between two adjacent end surfaces of different horizontal heights is greater than or equal to the thickness of the battery body, and the guide column of the side arm descending on the disk side contacts the high portion, and then stops descending at a level higher than the side arm on the belt side; The high-position variable disk is driven by the rotary drive structure and rotates along with the transposition shaft to perform position conversion, so that the end faces at different heights are moved to the bottom end of the guide column on the disk position side.

4. The button battery assembly device according to claim 3, characterized in that: The high position variable disk is annular and eccentrically arranged with respect to the transposition rotating shaft, and the distance between the inner edge of the high position variable disk and the transposition rotating shaft on the belt position side is smaller than the distance between the disk position side and the transposition rotating shaft; The flat portion and the high portion are arranged in an annular range on the top surface of the high position variable disk, and the width of the annular range is smaller than the distance between the guide column on the belt position side and the transposition shaft.

5. The button battery assembly device according to claim 3 or 4, characterized in that: The top of the high-position variable disk is provided with three or more end surfaces of different heights, the height-adjustable assembly further includes a transfer arm, the transfer arm is rotatably mounted at the bottom end of the bracket, the position of the transfer arm on the bracket includes a basic position and an extreme position, and an elastic member is provided between the transfer arm and the bracket to provide elastic force for the transfer arm to return to the basic position; The bottom end of the transfer arm is provided with a lower shifting block, and the transposition shaft is provided with an upper axial branch. The rotation of the transposition shaft drives the upper axial branch to contact the lower shifting block and then drives the transfer arm to rotate; The top of the transfer arm is provided with an upper shifting tooth that bounces upward, and the bottom surface of the high-position variable disk is provided with a ratchet surface, and the ratchet surface is formed by a plurality of unidirectional ratchets. The rotation of the transfer arm drives the upper shifting tooth to shift the ratchet surface to rotate the high-position variable disk, thereby moving the end faces at different heights to the bottom end of the guide column on the disk side.

6. The button battery assembly device according to claim 5, characterized in that: The bracket is provided with a receiving chamber and a biting bead is provided in the receiving chamber via a top spring, and the top spring provides elastic force to drive the biting bead upward; The bottom surface of the high-position variable disk is provided with engaging holes engaged with the engaging beads, and the number of the engaging holes is equal to the sum of the number of the flat portion and the high-position portion.

7. The button battery assembly device according to claim 5, characterized in that: The bracket is provided with blocking structures at the basic position and the extreme position of the transfer arm; The lower shifting block is made of rubber material. After the transposition shaft drives the transfer shifting arm to move to the extreme position, the side branch on the shaft squeezes the lower shifting block and then crosses the lower shifting block to continue rotating.

8. The button battery assembly device according to claim 5, characterized in that: The angle between the lines connecting the basic position and the extreme position and the rotation center of the transfer arm is smaller than the angle between the line connecting the engagement hole and the rotation center of the transfer arm.

9. The button battery assembly device according to claim 6, characterized in that: The engagement hole is provided with a span edge on the side having the same rotation direction as the transposition shaft, and the span edge is provided with a sliding groove extending to the next engagement hole in the rotation direction of the transposition shaft, the engagement bead abuts against the sliding groove, and the horizontal height of the sliding groove on the side of the span edge is lower than the horizontal height on the side of the next engagement hole.

10. The button battery assembly device according to claim 1, characterized in that: The material picking arm includes an air dividing cross arm and a plurality of material picking suction cup arms mounted on the air dividing cross arm, the air dividing cross arm is connected to an external negative pressure device, a material trough is provided on the material tray, and the number of the material picking suction cup arms is greater than or equal to the number of the material troughs.

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