Button battery assembling machine

Abstract

The invention discloses a button battery assembling machine, and belongs to the technical field of battery assembling. A conveying mechanism, a mechanical arm, a packaging mold, a liquid injection mechanism and a storage mechanism used for packaged button cells are installed on a machine table of the assembling machine. The feeding mechanism is arranged on the conveying mechanism and is used for placing all parts of the button battery to be assembled; the conveying mechanism is used for conveying of the feeding mechanism. The mechanical arm comprises a lifting assembly, a rotating assembly, a material taking head and a protruding structure, and the lifting assembly and the rotating assembly are used for controlling the lifting and rotating actions of the material taking head and the protruding structure to achieve material taking and reciprocating motion among the feeding mechanism, the packaging mold, the liquid injection mechanism and the storage mechanism. The liquid injection mechanism is used for injecting electrolyte into the battery to be assembled; the packaging mold is used for sealing the button cell. The button battery assembling machine has the characteristics of high precision and high efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of battery assembly, and more particularly to a button battery assembly machine. Background Art

[0002] In recent years, the proportion of renewable clean energy such as solar energy and wind energy in the energy system has increased rapidly. Energy storage batteries play a key role in preventing grid fluctuations caused by intermittent energy sources and improving power quality. However, in the basic research scenario of energy storage batteries, the encapsulation of button batteries generally adopts traditional hydraulic and electric sealing methods, and the assembly process before encapsulation uses manual assembly methods. There are challenges such as easy short - circuit of the battery, easy deviation of materials, and low injection accuracy during the manual assembly process, thus reducing the battery assembly efficiency and yield.

[0003] Therefore, in order to improve the assembly efficiency of button batteries, increase the battery yield, and at the same time reduce labor costs, it is urgent to develop a button battery assembly machine suitable for laboratory scenarios and adopting an automatic assembly method. Summary of the Invention

[0004] Aiming at the problems of easy short - circuit, poor accuracy, and low efficiency caused by manual assembly of button batteries in the prior art, the purpose of the present invention is to provide a button battery assembly machine to improve the battery assembly efficiency and yield.

[0005] In order to achieve the above - mentioned purpose, the technical solutions adopted by the present invention are as follows:

[0006] A button battery assembly machine includes a machine table, the upper surface of the machine table is an installation plate, and a transportation mechanism, a robotic arm, a packaging mold, a liquid injection mechanism, and a storage mechanism for the already - packaged button batteries are installed on the installation plate; among them:

[0007] Feeding mechanism: arranged on the transportation mechanism, and used for placing each component of the button battery to be assembled;

[0008] Transportation mechanism: used for the transmission of the feeding mechanism; the transportation mechanism includes a belt - type or chain - type conveyor belt;

[0009] Robotic arm: includes a lifting component, a rotating component, a picking head, and a protruding structure. The lifting component and the rotating component are used to control the lifting and rotating actions of the picking head and the protruding structure, so as to realize material picking and reciprocating movement between the feeding mechanism, the packaging mold, the liquid injection mechanism, and the storage mechanism; the picking head is a vacuum suction cup - type picking head;

[0010] Liquid injection mechanism: includes a pipette, and is used for injecting electrolyte into the battery to be assembled;

[0011] Packaging mold: used for sealing the button battery.

[0012] Further, the feeding mechanism includes a plurality of rectangular loading plates arranged side by side. Each loading plate is provided with a plurality of loading holes arranged along the length direction of the loading plate, and each loading hole is used for placing battery components to be assembled; the plurality of loading plates are arranged along the conveying direction of the conveying mechanism.

[0013] Further, the conveying mechanism includes a conveyor belt and an outer protective shell. The conveyor belt is provided with conveying power by a motor. The rotation of the motor drives the gear connected to the output shaft of the motor to rotate, and the gear drives the conveyor belt engaged on its surface to rotate, thereby realizing the conveyance of the loading plate fixed on the surface of the conveyor belt; the outer protective shell is installed on the mounting plate and is used to protect the conveyor belt and the gear.

[0014] Further, in the robotic arm, the lifting mechanism drives the screw rod to rotate by a lifting motor and drives the nut on the screw rod to move linearly up and down; the rotating mechanism includes a first arm, a second arm, a third arm, a rotating motor I and a rotating motor II, wherein: the rear end of the first arm is fixed to the nut in the lifting mechanism, the rotating motor I is fixed on the upper surface of the front end of the first arm, and the output shaft of the rotating motor I passes through the through hole on the front end of the first arm and is fixedly connected to the rear end of the second arm, and the rotating motor I can drive the second arm to rotate horizontally; the rotating motor II is fixed on the upper surface of the front end of the second arm, and the output shaft of the rotating motor II passes through the through hole on the front end of the second arm and is fixedly connected to the rear end of the third arm, and the rotating motor II can drive the third arm to rotate horizontally; a material taking head and a cylindrical convex structure are provided on the lower surface of the rear end of the third arm, and the convex structure is used for pressing the pipette.

[0015] Further, the encapsulation mold includes a sealing support frame with a support platform arranged on the mounting plate, an upper mold and a lower mold. The upper mold is fixed on the lower surface of the support platform, and the lower mold is installed on the mounting plate; a pipette fixing frame II is fixed on the upper surface of the support platform for placing the pipette; a motor is arranged below the mounting plate, and the motor is connected to the lower mold and drives the lower mold to cooperate with the upper mold to seal the semi-finished battery after injection.

[0016] Further, a through hole is axially formed in the upper mold for allowing the liquid drop of the pipette fixed on the pipette fixing frame II to pass through and reach the battery.

[0017] Further, the liquid injection mechanism includes a pipette, a pipette fixing bracket I, a glass bottle for storing electrolyte, and a storage tank for fixing the glass bottle; the pipette is a standard pipette gun equipped with a tip, and an adsorption sheet for the pick-up head on the robotic arm to adsorb is provided on the pipette gun; the pipette fixing bracket I is installed on the mounting plate, and the pipette fixing bracket II is installed on the support platform of the encapsulation mold; adsorption sheet slots matching the adsorption sheet on the pipette gun are provided on both the pipette fixing bracket I and the pipette fixing bracket II. After the pipette gun is placed on the pipette fixing bracket I or the pipette fixing bracket II, the adsorption sheet is placed in the adsorption sheet slot; the pipette gun sucks the electrolyte in the glass bottle and then drops the liquid onto the battery to be encapsulated; the glass bottle is installed below the pipette holder I on the mounting plate, and a storage tank for placing the glass bottle is opened on the machine table. The glass bottle is used to store the electrolyte; the robotic arm presses the pipette through the protruding structure at the end of the third arm, thereby realizing the suction and discharge of the electrolyte in the glass bottle; the robotic arm moves the pipette by adsorbing the adsorption sheet on the pipette with the pick-up head.

[0018] Further, the storage mechanism includes a plurality of grooves for storing button batteries, and the size of the grooves can accommodate button batteries; the storage mechanism is installed on the upper surface of the mounting plate; the robotic arm transfers the encapsulated button batteries to the grooves of the storage mechanism through the pick-up head.

[0019] Further, the pick-up head on the robotic arm is connected to a vacuum tube, and the vacuum tube is connected to an air compressor located below the mounting plate; by adjusting the air pressure of the suction cup, the robotic arm adsorbs and places the button battery assembly, the encapsulated button battery, and the pipette tip.

[0020] Further, the button battery assembly machine further includes an electric control box and a control panel. The electric control box is installed on the machine table and is electrically connected to the feeding mechanism, the transportation mechanism, the robotic arm, the encapsulation mold, the liquid injection mechanism, and the storage mechanism respectively to control the actions of each part; a control panel is provided on the electric control box.

[0021] The advantages and beneficial effects of the present invention are as follows:

[0022] Through the cooperation between the robotic arm and the feeding mechanism, the transportation mechanism for conveying and feeding, the liquid injection mechanism, the encapsulation mold, and the storage mechanism for the encapsulated button batteries, the present invention realizes the automatic, precise, and efficient assembly of button batteries, effectively improves the battery yield, and reduces the labor cost at the same time. Description of the Drawings

[0023] Figure 1 is a schematic diagram of the overall structure of the button battery assembly machine of the present invention;

[0024] Figure 2It is a top view of the button battery assembly machine of the present invention;

[0025] Figure 3 It is a partial enlarged view of the button battery assembly machine of the present invention;

[0026] Figure 4 It is a schematic diagram of the robotic arm of the button battery assembly machine of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the pipette fixing bracket Ⅰ of the present invention.

[0028] Figure 6 It is a schematic diagram of the structure of the pipette of the present invention.

[0029] Figure 7 They are the components and finished products of the button battery assembled by the button battery assembly machine of the present invention.

[0030] In the figure: 1 - machine table; 20 - feeding mechanism; 21 - loading plate; 22 - loading hole; 30 - transportation mechanism; 31 - conveyor belt; 32 - outer protective shell; 40 - robotic arm; 41 - lifting motor; 42 - rotating motor Ⅰ; 43 - rotating motor Ⅱ; 44 - first arm; 45 - second arm; 46 - third arm; 47 - picking head; 48 - protruding mechanism; 50 - encapsulation mold; 51 - upper mold; 52 - lower mold; 53 - pipette fixing bracket Ⅱ; 54 - motor; 55 - support platform; 60 - liquid injection mechanism; 61 - pipette; 62 - pipette fixing bracket Ⅰ; 63 - glass bottle; 64 - adsorption sheet; 65 - adsorption sheet notch; 70 - storage mechanism; 8 - mounting plate; 9 - control screen; 100 - storage tank. Detailed implementation manners

[0031] In order to better understand the technical solutions and advantages of the present invention, the content of the present invention will be further elaborated below with reference to the accompanying drawings.

[0032] The present invention provides a button battery assembly machine, as Figures 1-6 shown, the assembly machine includes a machine table 1, a feeding mechanism 20, a transportation mechanism 30 for transporting the feeding mechanism, a robotic arm 40, an encapsulation mold 50, a liquid injection mechanism 60, and a storage mechanism 70 for the encapsulated button batteries; the specific details of each part are as follows:

[0033] The upper surface of the machine table 1 is a mounting plate 8, and the transportation mechanism 30, the robotic arm 40, the encapsulation mold 5, the liquid injection mechanism 60, and the storage mechanism 70 for the encapsulated button batteries are all placed on the mounting plate 8 of the machine table 1.

[0034] The feeding mechanism 20 is used to place the components of the button battery to be assembled. The feeding mechanism 20 is installed on the transportation mechanism 30, and the transportation mechanism 30 is used for the transmission of the feeding mechanism, which is a belt-type or chain-type conveyor belt.

[0035] Specifically, the feeding mechanism includes a plurality of rectangular feeding plates 21 arranged side by side. A plurality of feeding holes 22 are arranged along the length direction of each feeding plate 21, and each feeding hole is used to place the battery components to be assembled; the plurality of feeding plates 21 are arranged along the transmission direction of the transportation mechanism.

[0036] The transportation mechanism includes a conveyor belt 31 and an outer protective shell 32. The conveyor belt 31 is provided with transmission power by a motor. The motor drives the gear connected to the output shaft of the motor to rotate, and the gear drives the conveyor belt meshing on its surface to rotate, thereby realizing the transmission of the feeding plate fixed on the surface of the conveyor belt; the outer protective shell 32 is a rectangular frame structure, and its bottom surface is welded to the mounting plate for protecting the conveyor belt and the gear.

[0037] The robotic arm includes a lifting component, a rotating component, a picking head 47 and a convex structure 48. The lifting component and the rotating component are used to control the lifting and rotating actions of the picking head 47 and the convex structure 48, so as to realize picking and reciprocating movement between the feeding mechanism, the encapsulation mold, the liquid injection mechanism and the storage mechanism; the picking head 47 is a vacuum suction cup type picking head.

[0038] Specifically, the lifting mechanism is driven by a lifting motor 41 to rotate the lead screw, and drives the nut on the lead screw to move up and down linearly; the rotating mechanism includes a first arm 44, a second arm 45, a third arm 46, a rotating motor I 42 and a rotating motor II 43, where: the rear end of the first arm 44 is fixed to the nut in the lifting mechanism, the rotating motor I 42 is fixed on the upper surface of the front end of the first arm 44, and the output shaft of the rotating motor I 42 passes through the through hole on the front end of the first arm 44 and is fixedly connected to the rear end of the second arm 45. The rotating motor I 42 can drive the second arm 45 to rotate horizontally; the rotating motor II 43 is fixed on the upper surface of the front end of the second arm 45, and the output shaft of the rotating motor II 43 passes through the through hole on the front end of the second arm 45 and is fixedly connected to the rear end of the third arm 46. The rotating motor II 43 can drive the third arm 46 to rotate horizontally; a picking head 47 and a cylindrical convex structure 48 are provided on the lower surface of the rear end of the third arm 46; the picking head is used for the picking and placing of the battery components and the encapsulated battery and for the movement of the pipette, and the convex structure 48 is used for pressing the pipette.

[0039] The encapsulation mold is used for sealing button batteries. Specifically, the encapsulation mold includes a sealing support frame with a support platform 55 disposed on the mounting plate 8, an upper mold 51, and a lower mold 52. The upper mold 51 is fixed to the lower surface of the support platform 55, and the lower mold is mounted on the mounting plate (a through groove is formed on the mounting plate, and the lower mold can slide up and down in the through groove driven by a motor); a pipette fixing frame II 53 is fixed on the upper surface of the support platform for placing a pipette; a motor 54 is disposed below the mounting plate, and the motor 54 is connected to the lower mold and drives the lower mold to move up and down to cooperate with the upper mold to seal the semi-finished battery after liquid injection.

[0040] A through hole is axially formed in the upper mold (a through hole with the same inner diameter and coaxial with the through hole in the upper mold is also formed at the position on the support platform corresponding to the installation of the pipette fixing frame II 53), for allowing the liquid drop of the pipette fixed on the pipette fixing frame II 53 to pass through and reach the corresponding battery component.

[0041] The liquid injection mechanism includes a pipette 61, a pipette fixing frame I 62, a glass bottle 63 for storing electrolyte, and a storage tank 100 for fixing the glass bottle; the pipette is a standard pipette gun equipped with a tip, and an adsorption piece 64 (made of plastic or rubber, etc.) for adsorption by the material taking head 47 on the robotic arm is provided on the pipette gun; the pipette fixing frame I 62 is mounted on the mounting plate 8, and the pipette fixing frame II 53 is mounted on the support platform 55 of the encapsulation mold; both the pipette fixing frame I 62 and the pipette fixing frame II 53 are provided with adsorption piece slots 65 matching the adsorption piece 64 on the pipette gun. After the pipette gun is placed on the pipette fixing frame I 62 or the pipette fixing frame II 53, the adsorption piece 64 is placed in the slot adsorption piece slot 65. After the pipette gun sucks the electrolyte in the glass bottle 63, the liquid is dropped onto the battery to be encapsulated; the glass bottle 63 is mounted below the pipette fixator I 62 on the mounting plate, and a storage tank 100 for placing the glass bottle 63 is formed on the machine table. The glass bottle is used for storing electrolyte; the robotic arm presses the pipette 61 through the protruding structure 48 at the end of the third arm, thereby realizing the suction and discharge of the electrolyte in the glass bottle 63; the robotic arm moves the pipette by adsorbing the adsorption piece 64 on the pipette through the material taking head 47.

[0042] The storage mechanism 70 includes a plurality of grooves for storing button batteries, and the size of the grooves is adapted to the button batteries; the storage mechanism is mounted on the upper surface of the mounting plate; the robotic arm transfers the encapsulated button batteries to the grooves of the storage mechanism 70 through the material taking head 47.

[0043] The material taking head 47 on the robotic arm is connected to a vacuum tube, and the vacuum tube is connected to an air compressor located below the mounting plate; by adjusting the air pressure of the suction cup, the robotic arm can adsorb and place the button cell assembly, the encapsulated button cell and the pipette tip.

[0044] In the assembly machine of the present invention, the automatic assembly of button cells is realized through the cooperation among the robotic arm mechanism 40, the feeding mechanism 20, the encapsulation die mechanism 50, the liquid injection mechanism 60 and the storage mechanism 70 for the encapsulated button cells, improving the assembly accuracy and efficiency. The material is sucked by the material taking head 47 and the pipette 61, and the stacking of materials and the movement of the pipette are completed through the rotation and lifting of the first arm 44, the second arm 45 and the third arm 46. The pipette is pressed by the protrusion mechanism 48 to inject liquid. The actions are simple and stable, effectively reducing the deviation phenomenon during material stacking and improving the assembly accuracy.

[0045] When using the above button cell assembly machine of the present invention to assemble button cells, the specific working process is as follows:

[0046] First, the positive bottom shell, the positive electrode sheet, the separator, the lithium metal, the stainless steel sheet, the spring sheet and the negative electrode shell are sequentially placed on each feeding plate of the feeding mechanism 20 ( Figure 7 ), and at the same time, the electrolyte is placed in the glass bottle 63 to complete the feeding.

[0047] The robotic arm 40 controls the material taking head 47 to suck the positive bottom shell and the positive electrode sheet respectively through the lifting motor 41, the rotation motor I 42 and the rotation motor II 43, and places the sucked materials on the lower die respectively; the robotic arm 40 controls the protrusion mechanism 48 thereon to move to the position of the pipette and make its height higher than the highest height of the pipette 61, and the protrusion mechanism 48 presses the pipette 61 through the lifting motor 41 to achieve the purpose of sucking the electrolyte.

[0048] The robotic arm 40 makes the material taking head 47 adsorb the adsorption sheet 64 on the pipette 61 through the lifting motor 41, the rotation motor I 42 and the rotation motor II 43, moves the pipette 61 above the upper die 51, and fixes the pipette 61 by relying on the pipette fixing frame II 53. At the same time, the adsorption sheet 64 on the pipette 61 is placed in the groove on the pipette fixing frame II 53; the robotic arm 40 controls the protrusion mechanism 48 to press the pipette 61 through the lifting motor 41, the rotation motor I 42 and the rotation motor II 43, so as to realize the first liquid injection of the electrolyte.

[0049] After the first liquid injection, the robotic arm 40 adsorbs the pipette 61 through the lifting motor 41, the rotating motor I 42, and the rotating motor II 43, and moves it to the pipette fixing bracket I 62; the robotic arm 40 drives the material taking head 47 to move to the feeding mechanism 20 through the lifting motor 41, the rotating motor I 42, and the rotating motor II 43, adsorbs the separator film through the material taking head 47, rotates it to the lower mold 52, and places the separator film on the positive electrode plate with the electrolyte dropped on it.

[0050] The robotic arm 40 rotates the material taking head 47 to the position of the pipette 61 through the rotating motor I 42 and the rotating motor II 43, and raises the height of the robotic arm through the lifting motor 41, so that the height of the protruding mechanism 48 at the end of the robotic arm is higher than the highest height of the pipette 61. The protruding mechanism 48 presses the pipette 61 through the lifting motor 41, so as to achieve the purpose of sucking the electrolyte. The robotic arm 40 adsorbs the adsorption sheet 64 on the pipette 61 through the lifting motor 41, the rotating motor I 42, and the rotating motor II 43, and at the same time moves the pipette 61 above the upper mold 51 of the encapsulation mold 50, and fixes the pipette 61 by relying on the pipette fixing bracket II 53. At the same time, the adsorption sheet 64 on the pipette 61 is placed in the adsorption sheet notch 65 on the pipette fixing bracket II 53; the robotic arm 40 presses the pipette 61 through the protruding mechanism 48 through the lifting motor 41, the rotating motor I 42, and the rotating motor II 43, so as to realize the secondary liquid injection of the electrolyte.

[0051] The robotic arm 40 moves the material taking head 47 to the feeding mechanism 20 through the lifting motor 41, the rotating motor I 42, and the rotating motor II 43, and successively adsorbs and places the lithium sheet, the stainless steel sheet, the spring sheet, and the negative electrode case on the separator film with the electrolyte dropped on it; the lower mold 52 is driven by the motor 54 to move upward, so that the lower mold cooperates with the upper mold 51 to seal the semi-finished battery after liquid injection.

[0052] Finally, the robotic arm 40 adsorbs the encapsulated button battery by relying on the material taking head 47 through the lifting motor 41, the rotating motor I 42, and the rotating motor II 43, and places the battery on the storage mechanism 70 to complete the assembly of a button battery.

[0053] As Figure 1 shown, in some embodiments of the present invention, it further includes a control screen 9 and an electric control box. The electric control box is installed on the machine table, and the electric control box is electrically connected to the feeding mechanism 20, the transportation mechanism 30, the robotic arm 40, the encapsulation mold 50, and the liquid injection mechanism 60 respectively and controls the actions of each part; the control screen 9 is provided on the electric control box.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A button battery assembly machine, characterized in that: The assembly machine comprises a machine platform (1), the upper surface of the machine platform (1) is a mounting plate (8), and a transport mechanism (30), a mechanical arm (40), a packaging mold (50), a liquid injection mechanism (60), and a storage mechanism (70) for packaged button batteries are mounted on the mounting plate (8); wherein: A feeding mechanism (20): arranged on the transport mechanism (30) and used for placing various components of button batteries to be assembled; Transport mechanism: used for the transmission of the feeding mechanism; the transport mechanism (30) comprises a belt-type or chain-plate conveyor belt (31); The mechanical arm comprises a lifting component, a rotating component, a material taking head (47) and a protruding structure (48), wherein the lifting component and the rotating component are used to control the lifting and rotating movements of the material taking head (47) and the protruding structure (48), so as to realize material taking and reciprocating movement between the material feeding mechanism, the packaging mold, the liquid injection mechanism and the storage mechanism; the material taking head (47) is a vacuum suction cup type material taking head; Liquid injection mechanism: including a pipette, used to inject electrolyte into the battery to be assembled; Packaging mold: used for sealing button batteries.

2. The button battery assembly machine according to claim 1, characterized in that: The feeding mechanism comprises a plurality of rectangular loading plates (21) arranged in parallel, each loading plate (21) being provided with a plurality of loading holes (22) arranged along the length direction of the loading plate, each loading hole (22) being used for placing battery components to be assembled; the plurality of loading plates (21) are arranged along the conveying direction of the transport mechanism.

3. The button battery assembly machine according to claim 2, characterized in that: The transport mechanism comprises a conveyor belt (31) and an outer protective shell (32); the conveyor belt (31) is provided with transmission power by a motor; the rotation of the motor drives the gear connected to the motor output shaft to rotate; the gear drives the conveyor belt meshing with its surface to rotate, thereby realizing the transmission of a loading plate (21) fixed on the surface of the conveyor belt; the outer protective shell (32) is installed on the mounting plate and is used to protect the conveyor belt and the gear.

4. The button battery assembly machine according to claim 1, characterized in that: In the mechanical arm, the lifting mechanism is driven by a lifting motor (41) to rotate the screw rod, and drives the nut on the screw rod to move linearly up and down; the rotating mechanism includes a first arm (44), a second arm (45), a third arm (46), a rotating motor I (42) and a rotating motor II (43), wherein: the rear end of the first arm (44) is fixed to the nut in the lifting mechanism, the rotating motor I (42) is fixed to the upper surface of the front end of the first arm (44), the output shaft of the rotating motor I (42) passes through the through hole on the front end of the first arm (44) and is fixedly connected to the rear end of the second arm (45), and the rotating motor I (42) ) can drive the second arm (45) to rotate in the horizontal direction; the rotating motor II (43) is fixed to the upper surface of the front end of the second arm (45), and the output shaft of the rotating motor II (43) passes through the through hole on the front end of the second arm (45) and is fixedly connected to the rear end of the third arm (46), and the rotating motor II (43) can drive the third arm (46) to rotate in the horizontal direction; a material taking head (47) and a cylindrical protruding structure (48) are provided on the lower surface of the rear end of the third arm (46), the protruding structure (48) is used to press the pipette, and the material taking head (47) is used to take and place various battery components and packaged batteries, and move the pipette.

5. The button battery assembly machine according to claim 1, characterized in that: The packaging mold comprises a sealing support frame with a support platform (55) arranged on a mounting plate (8), an upper mold (51) and a lower mold (52), wherein the upper mold (51) is fixed to the lower surface of the support platform (55), and the lower mold is mounted on the mounting plate; a pipette fixing frame II (53) is fixed to the upper surface of the support platform for placing a pipette; a motor (54) is arranged below the mounting plate, and the motor (54) is connected to the lower mold and drives the lower mold to cooperate with the upper mold to seal the semi-finished battery after liquid injection. The upper mold is provided with a through hole in the axial direction, so as to allow the dripping liquid of the pipette fixed on the pipette fixing frame II (53) to pass through and reach the battery.

6. The button battery assembly machine according to claim 5, characterized in that: The injection mechanism comprises a pipette (61), a pipette fixing frame I (62), a glass bottle (63) for storing electrolyte and a storage tank (100) for fixing the glass bottle; the pipette is a standard pipette gun and is equipped with a suction head, and the pipette gun is provided with an adsorption sheet (64) for adsorbing a material picking head (47) on a robot arm; the pipette fixing frame I (62) is installed on a mounting plate, and the pipette fixing frame II (53) is installed on a supporting platform of the packaging mold; the pipette fixing frame I (62) and the pipette fixing frame II (53) are both provided with an adsorption sheet notch (65) matching the adsorption sheet (64) on the pipette gun, After the pipette gun is placed on the pipette fixing frame I (62) or the pipette fixing frame II (53), the adsorption sheet is placed in the adsorption sheet groove (65); the pipette gun absorbs the electrolyte in the glass bottle and then drips the electrolyte to the battery to be packaged; the glass bottle is installed below the pipette fixing frame I (62) on the mounting plate, and a storage groove (100) for placing the glass bottle is opened on the machine platform, and the glass bottle is used to store the electrolyte; the mechanical arm presses the pipette through the protruding structure (48) at the end of the third arm, thereby realizing the absorption and discharge of the electrolyte in the glass bottle; the mechanical arm absorbs the adsorption sheet on the pipette through the material taking head (47) to realize the movement of the pipette.

7. The button battery assembly machine according to claim 1, characterized in that: The storage mechanism (70) comprises a plurality of grooves for storing button batteries, and the size of the grooves is capable of accommodating the button batteries; the storage mechanism is mounted on the upper surface of the mounting plate; the robotic arm transfers the packaged button batteries to the grooves of the storage mechanism (70) through a material taking head (47).

8. The button battery assembly machine according to claim 4, characterized in that: The material taking head (47) on the mechanical arm is connected to a vacuum tube, and the vacuum tube is connected to an air compressor located below the mounting plate; by adjusting the air pressure of the suction cup, the mechanical arm can adsorb and place the button battery assembly, the packaged button battery and the pipette tip.

9. The button battery assembly machine according to claim 1, characterized in that: The button cell battery assembly machine further comprises an electric control box and a control panel (9). The electric control box is mounted on the machine platform and is electrically connected to the feeding mechanism, the transport mechanism, the mechanical arm, the packaging mold, the injection mechanism and the storage mechanism respectively and controls the actions of each part. The control panel (9) is provided on the electric control box.

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