A cover combining device for a button cell

Abstract

The application discloses a button cell cover combining device, which comprises a rack, a first lower module, a second lower module, a first upper module and a second upper module. The button cell cover combining device is characterized in that the first lower module and the second lower module are matched, the first upper module and the second upper module are matched, the button cell negative electrode shell positioning space and the button cell positive electrode shell positioning space are formed, the button cell negative electrode shell positioning space and the button cell positive electrode shell positioning space are used for limiting the negative electrode shell and the positive electrode shell of the button cell to be combined, the negative electrode shell and the positive electrode shell of the button cell to be combined cannot be horizontally displaced, and then the positive electrode shell of the button cell is pressed on the negative electrode shell by means of gas stamping, so that the cover combination of the button cell is realized. The button cell cover combining device has high automation degree and high work efficiency.

Description

Technical Field

[0001] This invention relates to the field of battery production equipment, and more particularly to a button battery capping device. Background Technology

[0002] A button cell structure consists of a positive electrode casing, a negative electrode casing, and a cell. During button cell production, the cell is welded to both the positive and negative electrode casings, placed inside the negative electrode casing, and then the positive and negative electrode casings are snapped together to seal the cell, forming the finished button cell. Currently, button cell capping is typically done individually using a punch press or hydraulic press, resulting in low efficiency. To improve efficiency, high-frequency stamping operations are often required for the capping mold. However, high-frequency stamping causes significant wear on the mold, leading to increased susceptibility to failure and a significantly shortened lifespan. Frequent mold replacements and inefficient operation greatly increase the production cost of button cells. Summary of the Invention

[0003] The purpose of this invention is to provide a button battery cover closing device.

[0004] The technical solution to achieve the purpose of this invention is: a button battery cover closing device, comprising a frame, a first lower module, a second lower module, a first upper module, and a second upper module;

[0005] The first lower module includes a first lower module body fixedly mounted on the frame and a step extending upward from the first lower module body. The step has a plurality of first lower mold positioning notches. The second lower module is driven by a first driving mechanism and is mounted on the frame that can move horizontally relative to the first lower module. The second lower module includes a second lower module body and a lower mold protrusion extending horizontally from the upper end of the second lower module body toward the side close to the step. The lower mold protrusion is located directly above the first lower module body. The lower mold protrusion has a plurality of second lower mold positioning notches. The plurality of second lower mold positioning notches correspond one-to-one with the first lower mold positioning notches. Each second lower mold positioning notch and the corresponding first lower mold positioning notch form a button battery negative electrode shell positioning space.

[0006] The first upper module is driven by a second driving mechanism and is horizontally movable on the frame. The first upper module has several first upper mold positioning holes on its side. The second upper module is driven by a third driving mechanism and is horizontally movable relative to the first upper module on the frame. The second upper module includes a second upper module body and several upper mold protrusions extending horizontally from the second upper module body towards the side close to the first upper module. Each upper mold protrusion has a second upper mold positioning notch on the side close to the first upper module. The upper mold protrusions correspond one-to-one with the first upper mold positioning holes. Each upper mold protrusion extends into the corresponding first upper mold positioning hole. The second upper mold positioning notch on each upper mold protrusion and the corresponding first upper mold positioning hole form a button battery positive electrode shell positioning space.

[0007] The button battery positive electrode shell positioning space corresponds one-to-one with the button battery negative electrode shell positioning space. Each button battery positive electrode shell positioning space is located directly above the corresponding button battery negative electrode shell positioning space and is vertically connected. Each button battery positive electrode shell positioning space is provided with an air pipe, which is installed on the first upper module. The air pipe is connected to the corresponding button battery positive electrode shell positioning space from directly above it.

[0008] Furthermore, the first lower module body has a through hole located within the positioning notch of the first lower mold. High-pressure air is injected through an air pipe, causing the positive electrode shell of the button battery to be closed to press against the negative electrode shell below. During closing, to allow the high-pressure air from the air pipe to enter the positioning spaces of the positive and negative electrode shells of the button battery, these spaces are typically not completely sealed. Normally, there are gaps between the first lower module, the second lower module, the first upper module, and the second upper module. To ensure smoother airflow from the positioning spaces of the positive and negative electrode shells of the button battery, the first lower module body preferably has a through hole located within the positioning notch of the first lower mold.

[0009] Furthermore, the first lower mold positioning notch, the second lower mold positioning notch, and the second upper mold positioning notch are all arc-shaped notches. Since the positive and negative electrodes of a button cell are usually circular, in order to form the positioning space for the negative electrode shell and the positioning space for the positive electrode shell of the button cell, the positive and negative electrode shells of the button cell are positioned, and the first lower mold positioning notch, the second lower mold positioning notch, and the second upper mold positioning notch are all arc-shaped notches.

[0010] Furthermore, the size of the button battery negative electrode housing positioning space is limited to the ability to position the negative electrode housing of the button battery located therein, preventing the negative electrode housing of the button battery located therein from shifting horizontally. The button battery positive electrode housing positioning space is used to position the negative electrode housing of the button battery located therein.

[0011] Furthermore, the size of the button battery positive electrode casing positioning space is limited to the ability to position the positive electrode casing of the button battery located therein, preventing the positive electrode casing of the button battery located therein from shifting horizontally. The button battery positive electrode casing positioning space is used to position the positive electrode casing of the button battery located therein.

[0012] Furthermore, the movement paths of the second lower module, the first upper module, and the second upper module are all parallel. The movement paths of the second lower module, the first upper module, and the second upper module can be parallel or non-parallel; when parallel, the movement spaces overlap, resulting in a smaller space occupied by the device.

[0013] Furthermore, a horizontal guide rod is fixedly installed on the first lower module. The horizontal guide rod is parallel to the movement path of the second lower module, and the second lower module, the first upper module, and the second upper module are all movably fitted onto the horizontal guide rod. When the second lower module, the first upper module, and the second upper module move, they move along the horizontal guide rod. The horizontal guide rod guides the movement of the second lower module, the first upper module, and the second upper module, making their movement more stable and reliable. Moreover, the second lower module, the first upper module, and the second upper module are all guided by the same horizontal guide rod, resulting in a higher degree of parallelism in their movement paths.

[0014] Furthermore, the first lower module has a first upper corner at a right angle on the side away from the second lower module, and the second upper module is a right-angled block, which surrounds the first upper corner of the first lower module. With this configuration, when the second upper module moves towards the side closer to the first upper module, the right-angled block of the second upper module can be stopped by abutting against the first lower module, thereby making the movement of the second upper module more accurate.

[0015] Furthermore, the second lower module has a second upper corner at a right angle on the side away from the first lower module, and the first upper module is a right-angled block, which surrounds the second upper corner of the second lower module. With this configuration, when the first upper module moves towards the side closer to the second upper module, the first upper module of the right-angled block can be stopped by abutting against the second lower module, thereby making the movement of the first upper module more accurate.

[0016] Furthermore, the first drive mechanism, the second drive mechanism, and the third drive mechanism are all cylinders.

[0017] The button battery capping device of the present invention, through the cooperation of the first lower module and the second lower module, and the cooperation of the first upper module and the second upper module, respectively forms a negative electrode shell positioning space and a positive electrode shell positioning space for the button battery. The formed negative electrode shell positioning space and positive electrode shell positioning space are used to limit the negative electrode shell and positive electrode shell of the button battery to be capped, so that the negative electrode shell and positive electrode shell of the button battery to be capped cannot be horizontally displaced. Then, it is convenient to press the positive electrode shell of the button battery onto the negative electrode shell by gas blasting, thereby realizing the capping of the button battery. This invention relates to a button battery capping device. During operation, the positioning and capping of the button batteries are automatically completed by the device, resulting in a high degree of mechanical automation. Furthermore, each shift of the second lower module, the first upper module, and the second upper module can limit the negative and positive electrode shells of several button batteries and complete the capping process, leading to high efficiency. Additionally, by injecting high-pressure air through an air pipe, the positive electrode shell of the button battery to be capped is pressed onto the negative electrode shell below, thus capping the battery. Compared to mechanical stamping structures, the air pipe structure is not only simpler, but its air injection operation is also easier to control, resulting in faster and more uniform capping speeds. This not only ensures high capping efficiency but also provides more consistent quality. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the button battery cover device of the present invention from a first-view perspective;

[0019] Figure 2 This is a three-dimensional structural diagram of the button battery cover device of the present invention from a second perspective.

[0020] Figure 3 This is a three-dimensional structural diagram of the first lower module and the second lower module of the button battery cover device of the present invention;

[0021] Figure 4 This is a top view of the first and second lower modules of the button battery cover device of the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the first upper module of the button battery cover device of the present invention;

[0023] Figure 6 This is a three-dimensional structural diagram of the second upper module of the button battery cover device of the present invention;

[0024] Figure 7 This is a bottom view of the structure of the first upper module and the second upper module of the button battery cover device of the present invention.

[0025] Figure 8 The first lower module, second lower module, first upper module, and second upper module of the button battery closing device of the present invention are along... Figure 2 Schematic diagram of the cross-sectional structure along line AA;

[0026] Figure 9 This is a cross-sectional perspective view of the button battery cover device of the present invention along the axial direction of the horizontal guide rod.

[0027] Figure 10 This is a schematic diagram of the structure of the button battery cover device of the present invention, in which neither the second lower module, the first upper module, nor the second upper module moves toward the first lower module.

[0028] Figure 11 This is a schematic diagram of the button battery cover closing device of the present invention after only the second lower module moves towards the first lower module;

[0029] Figure 12 This is a schematic diagram of the button battery cover device of the present invention after only the second lower module and the first lower module are moved to the side of the first lower module. Implementation

[0030] The specific embodiments of the button battery cover closing device of the present invention will be described in detail below with reference to the accompanying drawings:

[0031] like Figures 1 to 8 As shown, a button battery cover closing device includes a frame 100, a first lower module 1, a second lower module 2, a first upper module 3, and a second upper module 4;

[0032] The first lower module 1 includes a first lower module body 11 fixedly installed on the frame 100 and a step 12 extending upward from one side of the first lower module body 11. The step 12 has a plurality of first lower mold positioning notches 10. The second lower module 2 is driven by a first driving mechanism 21 and is installed on the frame 100 in a way that allows it to move horizontally relative to the first lower module 1. The second lower module 2 includes a second lower module body 22 and a lower mold protrusion 23 extending horizontally from the upper end of the second lower module body 22 toward the side close to the step 12. The lower mold protrusion 23 is located directly above the first lower module body 11. The lower mold protrusion 23 has a plurality of second lower mold positioning notches 20. The plurality of second lower mold positioning notches 20 correspond one-to-one with the first lower mold positioning notches 10. Each second lower mold positioning notch 20 and the corresponding first lower mold positioning notch 10 form a button battery negative electrode shell positioning space 200.

[0033] The first upper module 3 is driven by a second driving mechanism 31 and is horizontally movable on the frame 100. The side of the first upper module 3 is provided with a plurality of first upper mold positioning ports 30. The second upper module 4 is driven by a third driving mechanism 41 and is horizontally movable relative to the first upper module 3 and is mounted on the frame 100. The second upper module 4 includes a second upper module body 42 and a plurality of upper mold protrusions 43 extending horizontally from the second upper module body 42 toward the side close to the first upper module 3. Each upper mold protrusion 43 has a second upper mold positioning notch 40 on the side close to the first upper module 3. The upper mold protrusions 43 correspond one-to-one with the first upper mold positioning ports 30. Each upper mold protrusion 43 extends into the corresponding first upper mold positioning port 30. The second upper mold positioning notch 40 on each upper mold protrusion 43 and the corresponding first upper mold positioning port 30 form a button battery positive electrode shell positioning space 300.

[0034] The button battery positive electrode housing positioning space 300 corresponds one-to-one with the button battery negative electrode housing positioning space 200. Each button battery positive electrode housing positioning space 300 is located directly above the corresponding button battery negative electrode housing positioning space 200 and is vertically connected. Each button battery positive electrode housing positioning space 300 is provided with an air pipe 5. The air pipe 5 is installed on the first upper module 3 and is connected to the corresponding button battery positive electrode housing positioning space 300 from directly above it.

[0035] The present invention provides a button battery cover device in which the first lower module 1 is fixedly installed and the second lower module 2 can move horizontally relative to the first lower module 1. During operation, the second lower module 2 can move closer to the first lower module 1 or move away from the first lower module 1.

[0036] The present invention relates to a button battery capping device, wherein the first lower module 1 includes a first lower module body 11 fixedly mounted on the frame 100 and a step 12 extending upward from one side of the first lower module body 11, and a first lower mold positioning notch 10 is provided on the step 12; the function of this structure of the first lower module 1 is to allow the button battery to be capped to be placed on the first lower module body 11 and within the first lower mold positioning notch 10.

[0037] In the button battery capping device of the present invention, the upper end of the second lower module 2 extends horizontally towards the side near the step 12 with a lower mold protrusion 23, and the second lower mold positioning notch 20 is provided on the lower mold horizontal protrusion 22; the function of this structure of the second lower module 2 is that, after the second lower module 2 moves closer to the first lower module 1, the lower mold protrusion 23 of the second lower module 2 can be located above the first lower module body 11, and the second lower mold positioning notch 20 on the protrusion 22 can be close to the corresponding first lower mold positioning notch 10, forming a button battery negative electrode shell positioning space 200 with the corresponding first lower mold positioning notch 10.

[0038] In this invention, a button battery closing device is provided. After the second lower module 2 moves closer to the first lower module 1, a button battery negative electrode shell positioning space 200 is formed between the second lower mold positioning notch 20 on the second lower module 2 and the first lower mold positioning notch 10 on the first lower module 1. This space is used to limit the negative electrode shell of the button battery to be closed, which is placed on the first lower module body 11 and within the first lower mold positioning notch 10, preventing the negative electrode shell of the button battery to be closed from shifting horizontally. The size of the button battery negative electrode shell positioning space 200 is limited to the ability to position the negative electrode shell of the button battery located within it, preventing it from shifting horizontally.

[0039] The button battery cover device of the present invention has a first upper module 3 and a second upper module 4 that can be horizontally movable. The first upper module 3 can move horizontally toward the side closer to the first lower module 1 or toward the side farther away from the first lower module 1; the second upper module 4 can move toward the side closer to the first upper module 3 or toward the side farther away from the first upper module 3.

[0040] The present invention relates to a button battery capping device, wherein the first upper module 3 has a plurality of first upper mold positioning openings 30 on its side; the second upper module 4 has a plurality of upper mold protrusions 43 extending horizontally towards the side near the first upper module 3, and each upper mold protrusion 43 has a second upper mold positioning notch 40 on the side near the first upper module 3. The size of the first upper mold positioning opening 30 is limited to the upper mold protrusion 43 being able to extend into it and form a button battery positive electrode shell positioning space 300 therewith.

[0041] In this invention's button battery capping device, to facilitate the installation of the air pipe 5 on the first upper module 3, the width of the first upper module 3 is typically relatively wide. The second upper mold positioning notch 40 needs to extend into the first upper mold positioning opening 30 on the first upper module 3, forming a button battery positive electrode shell positioning space 300 with the inner end of the first upper mold positioning opening 30. To allow the second upper mold positioning notch 40 to extend into the first upper mold positioning opening 30 on the first upper module 3, an upper mold protrusion 43 extends horizontally from the second upper module 4 towards the side closer to the first upper module 3, and the second upper mold positioning notch 40 is provided on the upper mold protrusion 43. In this invention's button battery capping device, the size of the first upper mold positioning opening 30 is limited by the fact that the upper mold protrusion 43 can extend into it, and the button battery positive electrode shell positioning space 300 is formed between the inner end of the second upper mold positioning notch 40 and the first upper mold positioning opening 30.

[0042] In this invention, a button battery capping device is provided. After the second upper module 4 moves closer to one side of the first upper module 3, a button battery positive electrode shell positioning space 300 is formed between the second upper mold positioning notch 40 on the second upper module 4 and the first upper mold positioning opening 30 on the first upper module 3. This space is used to limit the positive electrode shell of the button battery to be capped, which is already confined within the negative electrode shell positioning space 200, preventing horizontal displacement of the positive electrode shell. The size of the button battery positive electrode shell positioning space 300 is limited to the ability to position the positive electrode shell of the button battery located within it, preventing horizontal displacement of the positive electrode shell.

[0043] The button battery cover closing device of the present invention, when in operation, such as Figure 10 As shown, the button battery to be closed can be placed on the first lower module body 11 and within the first lower mold positioning notch 10; then, the second lower module 2 moves closer to the first lower module 1, as shown. Figure 11 As shown; after the second lower module 2 moves closer to the first lower module 1, the button battery negative electrode shell positioning space 200 formed between the second lower mold positioning notch 20 on the second lower module 2 and the first lower mold positioning notch 10 on the first lower module 1 limits the negative electrode shell of the button battery to be closed, which is placed on the first lower module body 11 and inside the first lower mold positioning notch 10; then the first upper module 3 moves closer to the first lower module 1, and the first upper mold positioning opening 30 on the first upper module 3 partially wraps around the positive electrode shell of the button battery to be closed, which is now limited to the negative electrode shell positioning space 200. Figure 12As shown; then the second upper module 4 moves closer to one side of the first upper module 3, and the upper mold protrusion 43 on the second upper module 4 extends into the first upper mold positioning port 30 on the first upper module 3, as shown. Figure 1 As shown, a button battery positive electrode shell positioning space 300 is formed between the inner end of the second upper mold positioning notch 40 and the first upper mold positioning port 30, which limits the positive electrode shell of the button battery to be closed, which is already confined within the button battery negative electrode shell positioning space 200.

[0044] The present invention relates to a button battery capping device. After the button battery to be capped is positioned within the button battery negative electrode shell positioning space 200 and the button battery positive electrode shell positioning space 300, high pressure is injected into the button battery positive electrode shell positioning space 300 through the air pipe 5. The air pressure causes the positive electrode shell of the button battery to be capped to press onto the negative electrode shell below, thus completing the capping of the button battery.

[0045] The button battery closing device of the present invention allows the second upper module 4, the first upper module 3, and the second lower module 2 to retract sequentially after the button battery is closed, so that the closed button battery can be removed.

[0046] The button battery capping device of the present invention, through the cooperation of the first lower module 1 and the second lower module 2, and the cooperation of the first upper module 3 and the second upper module 4, respectively forms the button battery negative electrode shell positioning space 200 and the button battery positive electrode shell positioning space 300. The formed button battery negative electrode shell positioning space 200 and the button battery positive electrode shell positioning space 300 are used to limit the negative electrode shell and the positive electrode shell of the button battery to be capped, so that the negative electrode shell and the positive electrode shell of the button battery to be capped cannot be horizontally displaced. Then, it is convenient to press the positive electrode shell of the button battery onto the negative electrode shell by gas blasting, thereby realizing the capping of the button battery. The button battery capping device of this invention automatically completes the positioning and capping of the button batteries during operation, resulting in a high degree of mechanical automation. Furthermore, each shift of the second lower module 2, the first upper module 3, and the second upper module 4 limits the negative and positive electrode shells of several button batteries and completes the capping process, demonstrating high efficiency. Moreover, by injecting high-pressure air through the air pipe 5, the positive electrode shell of the button battery to be capped is pressed onto the negative electrode shell below, thus capping the battery. Compared to mechanical stamping structures, the air pipe 5 is not only simpler in structure, but its air injection operation is also simpler and easier to control, resulting in faster and more uniform capping speeds. This not only ensures high capping efficiency but also more consistent quality.

[0047] In the button battery capping device of the present invention, preferably, the first lower module body 11 has a through hole 51 located within the first lower mold positioning notch 10. High-pressure air is injected through the air pipe 5, causing the positive electrode shell of the button battery to be capped to press against the negative electrode shell below. During capping, to allow the high-pressure air from the air pipe 5 to enter the button battery positive electrode shell positioning space 300 and the button battery negative electrode shell positioning space 200, it is generally required that the button battery positive electrode shell positioning space 300 and the button battery negative electrode shell positioning space 200 are not completely sealed. Under normal circumstances, there are gaps between the first lower module 1, the second lower module 2, the first upper module 3, and the second upper module 4. To ensure smoother airflow from the button battery positive electrode shell positioning space 300 and the button battery negative electrode shell positioning space 200, preferably, the first lower module body 11 has a through hole 51 located within the first lower mold positioning notch 10.

[0048] The button battery capping device of the present invention, since the positive and negative terminals of the button battery are usually circular, in order to form the button battery negative terminal shell positioning space 200 and the button battery positive terminal shell positioning space 300, the positive and negative terminal shells of the button battery are positioned. The first lower mold positioning notch 10, the second lower mold positioning notch 20 and the second upper mold positioning notch 40 are usually arc-shaped notches.

[0049] In the button battery capping device of the present invention, preferably, the moving paths of the second lower module 2, the first upper module 3, and the second upper module 4 are all parallel. The moving paths of the second lower module 2, the first upper module 3, and the second upper module 4 can be parallel or non-parallel. When they are parallel, the moving spaces overlap, and the device occupies less space.

[0050] The button battery cover device of the present invention, preferably, is as follows: Figure 9 As shown, a horizontal guide rod 6 is fixedly installed on the first lower module 1. The horizontal guide rod 6 is parallel to the moving path of the second lower module 2. The second lower module 2, the first upper module 3, and the second upper module 4 are all movably fitted onto the horizontal guide rod 6. When the second lower module 2, the first upper module 3, and the second upper module 4 move, they move along the horizontal guide rod 6. The horizontal guide rod 6 guides the movement of the second lower module 2, the first upper module 3, and the second upper module 4, making their movement more stable and reliable. Furthermore, since the second lower module 2, the first upper module 3, and the second upper module 4 are all guided by the same horizontal guide rod 6, the parallelism of their moving paths is higher.

[0051] In the button battery capping device of the present invention, preferably, the first lower module 1 has a first upper corner 13 at a right angle on the side away from the second lower module 2, and the second upper module 4 is a right-angled block, which is disposed outside the first upper corner 13 of the first lower module 1. With this configuration, when the second upper module 4 moves towards the side closer to the first upper module 3, the right-angled block of the second upper module 4 can be stopped by abutting against the first lower module 1, thereby making the movement of the second upper module 4 more accurate.

[0052] In the button battery capping device of the present invention, preferably, the second lower module 2 has a second upper corner 24 at a right angle on the side away from the first lower module 1, and the first upper module 3 is a right-angled block, which is disposed outside the second upper corner 24 of the second lower module 2. With this configuration, when the first upper module 3 moves towards the side closer to the second upper module 4, the right-angled block of the first upper module 3 can be stopped by abutting against the second lower module 2, thereby making the movement of the first upper module 3 more accurate.

[0053] The button battery capping device of the present invention may include, but is not limited to, cylinders, the first drive mechanism 21, the second drive mechanism 31, and the third drive mechanism 41.

[0054] For those skilled in the art, without departing from the concept of this invention, several simple deductions or substitutions can be made, and all such deductions or substitutions should be considered to fall within the scope of protection of this invention.

Claims

1. A button battery cover closing device, characterized in that: The machine frame, the first lower mold module, the second lower mold module, the first upper mold module and the second upper mold module; The first lower mold module comprises a first lower mold module body fixedly installed on the machine frame and a step extending upward from the first lower mold module body, and a plurality of first lower mold positioning notches are formed in the step; the second lower mold module is driven by a first driving mechanism, is installed on the machine frame in a horizontally movable manner relative to the first lower mold module, comprises a second lower mold module body and a lower mold convex edge extending horizontally from an upper end of the second lower mold module body towards a side close to the step, the lower mold convex edge is located directly above the first lower mold module body, and a plurality of second lower mold positioning notches are formed in the lower mold convex edge, the second lower mold positioning notches and the first lower mold positioning notches are in one-to-one correspondence, and a button cell negative shell positioning space is formed between each second lower mold positioning notch and the corresponding first lower mold positioning notch. The first upper mold module is driven by a second driving mechanism and is installed on the machine frame in a horizontally movable manner, and a plurality of first upper mold positioning openings are formed in the side surface of the first upper mold module; the second upper mold module is driven by a third driving mechanism and is installed on the machine frame in a horizontally movable manner relative to the first upper mold module, comprises a second upper mold module body and a plurality of upper mold convex blocks extending horizontally from the second upper mold module body towards a side close to the first upper mold module, and a second upper mold positioning notch is formed in the side of each upper mold convex block close to the first upper mold module, the upper mold convex blocks and the first upper mold positioning openings are in one-to-one correspondence, each upper mold convex block extends into the corresponding first upper mold positioning opening, and a button cell positive shell positioning space is formed between the second upper mold positioning notch on each upper mold convex block and the corresponding first upper mold positioning opening. The button cell positive shell positioning spaces and the button cell negative shell positioning spaces are in one-to-one correspondence, each button cell positive shell positioning space is located directly above the corresponding button cell negative shell positioning space and penetrates the button cell positive shell positioning space and the button cell negative shell positioning space in a vertical direction, each button cell positive shell positioning space is provided with a gas pipe in correspondence with the button cell positive shell positioning space, and the gas pipe is installed on the first upper mold module and penetrates the button cell positive shell positioning space and the button cell negative shell positioning space in a vertical direction.

2. The cover combining apparatus for a coin cell battery according to claim 1, wherein: A through hole is formed in the first lower mold module body and located in the first lower mold positioning notch.

3. The cover combining apparatus for a coin cell battery according to claim 1, wherein: The first lower mold positioning notch, the second lower mold positioning notch and the second upper mold positioning notch are circular arc notches.

4. The cover combining apparatus for a coin cell battery according to claim 1, wherein: The size of the button cell negative shell positioning space is limited to that of the button cell negative shell positioned in the button cell negative shell positioning space and unable to be horizontally displaced.

5. The cover combining apparatus for a coin cell battery according to claim 1, wherein: The size of the button cell positive shell positioning space is limited to that of the button cell positive shell positioned in the button cell positive shell positioning space and unable to be horizontally displaced.

6. The cover lamination apparatus of claim 1, wherein: The moving paths of the second lower mold module, the first upper mold module and the second upper mold module are parallel to each other.

7. The cover lamination apparatus of claim 1, wherein: The first lower module is fixedly installed with a horizontal guide rod, the horizontal guide rod is parallel to the moving path of the second lower module, and the second lower module, the first upper module and the second upper module are movably sleeved on the horizontal guide rod.

8. The cover lamination apparatus of claim 1, wherein: The side of the first lower module away from the second lower module has a first upper end corner in a right angle, the second upper module is a right angle block, and the second upper module is wrapped outside the first upper end corner of the first lower module.

9. The cover lamination apparatus of claim 1, wherein: The side of the second lower module away from the first lower module has a second upper end corner in a right angle, the first upper module is a right angle block, and the first upper module is wrapped outside the second upper end corner of the second lower module.

10. The cover lamination apparatus of claim 1, wherein: The first driving mechanism, the second driving mechanism and the third driving mechanism are all air cylinders.

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