Packaging machine and packaging process of soft package lithium ion battery cell

Abstract

The application belongs to lithium ion battery cell packaging equipment, and particularly relates to a soft package lithium ion battery cell packaging machine and a packaging process thereof. The soft package lithium ion battery cell packaging machine capable of directly realizing cutting of excess packaging bags in the packaging machine comprises a packaging machine body and a cutting mechanism, the cutting mechanism is arranged in the packaging machine body and located at the side of the hot pressing edge, and the cutting mechanism comprises a pressing rod, a protruding block, a third electric track, a cutter, a push rod and a first torsional spring. The left and right walls of the packaging machine body are both connected with the pressing rod through shaft rotation at the front lower part, the shaft front end of the connecting pressing rod is fixedly connected with the protruding block, the pressing rod and the protruding block rotate synchronously, and the rotating connection part of the pressing rod is provided with a third electric track fixedly connected with the front lower part of the first torsional spring placing plate. The material can be packaged through the placing plate and the hot press, and the material leaking out of the placing plate can be cut off through the cutter after the material is completely packaged, so that the work efficiency is improved.

Description

Technical Field

[0001] The present invention relates to lithium ion battery cell packaging equipment, and in particular to a packaging machine for soft-packaged lithium ion batteries and a packaging process thereof. Background Art

[0002] With the growing demand for miniaturization and portability of electronic devices, flexible-package lithium-ion batteries have gained widespread adoption due to their lightweight, high energy density, and excellent safety. However, in the production of flexible-package lithium-ion batteries, the packaging step is a critical step in ensuring battery performance and safety. Traditional packaging processes typically involve encapsulating the battery components in aluminum-plastic film and completing the packaging process through steps such as hot pressing, liquid injection, and sealing.

[0003] A common problem in existing technologies is that after cell packaging is complete, excess packaging material (i.e., excess packaging bags) often needs to be manually or semi-automatically removed to meet the final product's size requirements and aesthetic standards. This operation method has the following shortcomings:

[0004] Low efficiency: After packaging, the battery cells need to be removed and then cut off, which not only adds extra operation steps but also reduces the operating efficiency of the entire production line.

[0005] Unstable quality: Since the cutting process is separated from the packaging process, the cutting position may be inaccurate, affecting the consistency and appearance quality of the product.

[0006] Safety hazards: There may be risks of misoperation during manual cutting, for example, the cutting tool may damage the battery cell structure or cause personal injury.

[0007] Increased costs: In order to ensure the quality of resection, companies often need to invest more human resources for monitoring and management, which increases production costs.

[0008] Therefore, there is an urgent need to develop a packaging machine and a packaging process for soft-packaged lithium-ion batteries that can directly cut off excess packaging bags in the packaging machine. Summary of the Invention

[0009] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a packaging machine and a packaging process thereof for soft-packaged lithium-ion batteries capable of directly cutting off excess packaging bags in the packaging machine.

[0010] The technical implementation scheme of the present invention is: a packaging machine for soft-packaged lithium-ion batteries, including a packaging machine body and a cutting mechanism, the cutting mechanism is arranged in the packaging machine body, the cutting mechanism is located on the side of the hot pressing edge, the cutting mechanism includes a pressure rod, a protrusion, a third electric track, a cutter, a push rod and a first torsion spring, the lower front parts of the left and right walls of the packaging machine body are both connected to the pressure rod through an axis rotation, the front end of the axis connecting the pressure rod is fixed with a rod connected to the protrusion, the pressure rod and the protrusion rotate synchronously, the rotation connection of the pressure rod is provided with a first torsion spring, the lower front part of the placement plate is fixedly connected to the third electric track, the cutter is fixedly connected between the sliders of the third electric track, and the left and right sides of the cutter are connected to push rods extending upward.

[0011] Optionally, the packaging machine body includes a cabinet, a first electric rail, a placement plate, a second electric rail, a hot press and a limit plate. The first electric rail is fixedly connected symmetrically to the left and right bottom of the cabinet, the placement plate is fixedly connected between the sliders on the top of the first electric rail, the second electric rail is vertically fixedly connected to the upper part of the left and right walls of the cabinet, the hot press is fixedly connected between the sliders of the second electric rail, and the limit plate is fixedly connected symmetrically to the left and right rear side of the top of the placement plate.

[0012] Optionally, a rack plate is also included, and the bottom edge of the hot press and the top edge of the placement plate are provided with rack plates that engage with each other.

[0013] Optionally, a fan is further included, and the fan is fixedly connected to the lower part of the rear wall of the cabinet.

[0014] Optionally, a side positioning mechanism is also included. A side positioning mechanism is provided on the placement plate. The side positioning mechanism includes a motor, a screw, a movable plate, an arc-shaped pressure plate and a second torsion spring. The motor is fixedly connected to the middle part of the right side of the placement plate, and the output shaft on the left side of the motor is connected to the screw. The left end of the screw is rotatably connected to the left part of the placement plate through a bearing seat. The left and right parts of the screw are both connected to the movable plate by threads. The movable plate is slidably connected to the placement plate. The top of the movable plate is rotatably connected to the arc-shaped pressure plate. A second torsion spring is provided at the rotation connection of the arc-shaped pressure plate. The arc-shaped pressure plate is inclined inwardly and downwardly, and the bottom of the arc-shaped pressure plate is an obtuse arc that bends upward.

[0015] Optionally, a collection mechanism is also included. The lower left corner of the front lower part of the cabinet is rotatably connected to the collection mechanism. The collection mechanism includes a collection frame and a third torsion spring. The lower left corner of the front lower part of the cabinet is rotatably connected to the collection frame. The collection frame is on the front side of the cutter, and a third torsion spring is provided at the rotation connection of the collection frame.

[0016] Optionally, a rear positioning mechanism is also included. The hot press is equipped with a rear positioning mechanism, which includes an electric wheel. A mounting opening is provided at the front of the hot press, and the electric wheel is installed in the mounting opening. The outer surface of the electric wheel is covered with a rubber sleeve.

[0017] Optionally, a cleaning mechanism is also included. The left and right walls of the cabinet are both provided with cleaning mechanisms. The cleaning mechanism includes a vacuum cleaner. The vacuum cleaner is installed below the left and right walls of the cabinet, and the discharge port of the vacuum cleaner is above the collection frame.

[0018] A packaging process for a soft-package lithium-ion battery cell comprises the following steps:

[0019] Step 1: The placing plate is sent out for unloading by the first electric track. After unloading, the placing plate and the material on it are moved to the packaging station by the first electric track;

[0020] Step 2: The second electric track drives the hot press to package the material;

[0021] Step 3: The cutter is driven upward by the third electric track to remove the waste;

[0022] Step 4: The materials packaged on the placement plate are sent out through the first electric track and the materials are taken out.

[0023] The present invention has the following advantages: the present invention can perform packaging operations on materials through the placement plate and the hot press. After the materials are packaged, the materials leaking out of the placement plate are cut off by the cutter, thereby improving work efficiency and maintaining product consistency; the pressure rod can be pressed on the front and rear sides of the cutting mark, which can facilitate the cutter to cut the waste material, while improving the cutting accuracy and ensuring the beautiful appearance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the packaging machine body of the present invention.

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the cutting mechanism of the present invention.

[0027] Figure 4 This is a position diagram of the side positioning mechanism of the present invention.

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the side positioning mechanism of the present invention.

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the movable plate, the arc-shaped pressure plate and the second torsion spring of the present invention.

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the rear positioning mechanism of the present invention.

[0031] Figure 8It is a schematic diagram of the three-dimensional structure of the collecting mechanism and the cleaning mechanism of the present invention.

[0032] The parts in the accompanying drawings are marked as follows: 1: Packaging machine body, 101: Cabinet, 102: First electric rail, 103: Placement plate, 104: Second electric rail, 105: Hot press, 106: Rack plate, 107: Limiting plate, 108: Fan, 2: Cutting mechanism, 201: Pressure rod, 202: Bump, 203: Third electric rail, 204: Cutter, 205: Push rod, 206: First torsion spring, 3: Side positioning mechanism, 301: Motor, 302: Screw rod, 303: Moving plate, 304: Arc pressure plate, 305: Second torsion spring, 4: Collecting mechanism, 401: Collecting frame, 402: Third torsion spring, 5: Rear positioning mechanism, 501: Installation port, 502: Electric wheel, 6: Cleaning mechanism, 601: Vacuum cleaner, 602: Discharge port. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that any directional terms such as "up," "down," "left," "right," "front," "back," "inside," and "outside" that appear or will appear herein are based solely on the accompanying drawings and are not intended to limit the present invention.

[0034] Embodiment: A packaging machine for soft-packaged lithium-ion batteries, such as Figure 1-Figure 3 As shown, it includes a packaging machine body 1 and a cutting mechanism 2. The cutting mechanism 2 is arranged in the packaging machine body 1 and is located on the side of the hot pressing edge.

[0035] like Figure 1 and 2As shown, the packaging machine body 1 includes a cabinet 101, a first electric rail 102, a placement plate 103, a second electric rail 104, a hot press 105, a rack plate 106, a limit plate 107 and a fan 108. The bottom of the cabinet 101 is fixedly connected to the first electric rail 102 by bolts on the left and right sides, and the placement plate 103 is fixedly connected between the sliders on the top of the first electric rail 102 by bolts. After the battery cell assembly is loaded into the aluminum-plastic film, it is placed on the placement plate 103. The first electric rail 102 can drive the objects on the placement plate 103 to feed and unload. The upper parts of the left and right walls of the cabinet 101 are vertically fixedly connected to the second electric rail 104 by bolts. The sliders of the second electric rail 104 are fixedly connected by bolts. A hot press 105 is fixedly connected, and the hot press 105 can be driven to move vertically for hot pressing through the second electric track 104. The bottom edge of the hot press 105 and the top edge of the placement plate 103 are provided with a rack plate 106 that meshes with each other. During the hot pressing process, due to the special structure of the rack plate 106, wrinkles can be formed on the edge of the hot pressing, so that the heat-sealed edge can be better sealed. The top rear side of the placement plate 103 is symmetrically fixed with a limit plate 107. After the material is placed, the edge of the material contacts the limit plate 107. At this time, the material is placed. The lower part of the rear wall of the cabinet 101 is fixedly connected with a fan 108 by bolts. After the material is hot-pressed, the hot-pressed part of the material can be quickly cooled by the operation of the fan 108.

[0036] like Figure 3 As shown, the cutting mechanism 2 includes a pressure rod 201, a protrusion 202, a third electric rail 203, a cutter 204, a push rod 205 and a first torsion spring 206. The lower front parts of the left and right walls of the cabinet 101 are rotatably connected to the pressure rod 201, and the front end of the shaft connecting the pressure rod 201 is fixedly connected to the protrusion 202. The pressure rod 201 rotates synchronously with the protrusion 202. The rotating connection of the pressure rod 201 is provided with a first torsion spring 206. The lower front part of the placement plate 103 is fixedly connected to the third electric rail 203 by bolts, and the cutter 204 is fixedly connected between the sliders of the third electric rail 203. The left and right sides of the cutter 204 are connected to the push rods 205 extending upward. When the placement plate 103 is in the cabinet 101 for packaging work, the push rod 205 is below the protrusion 202 and can drive the cutter 204 to move vertically for cutting through the third electric rail 203.

[0037] like Figure 4-Figure 6As shown, it also includes a side positioning mechanism 3, a side positioning mechanism 3 is provided on the placement plate 103, the side positioning mechanism 3 includes a motor 301, a screw rod 302, a movable plate 303, an arc-shaped pressure plate 304 and a second torsion spring 305, the middle part of the right side of the placement plate 103 is fixedly connected to the motor 301 by a bolt, the output shaft on the left side of the motor 301 is connected to the screw rod 302 through a coupling, the left end of the screw rod 302 is rotatably connected to the left part of the placement plate 103 through a bearing seat, the left and right parts of the screw rod 302 are both connected to the movable plate 303 by threads, the movable plate 303 is slidably connected to the placement plate 103, the top of the movable plate 303 is rotatably connected to the arc-shaped pressure plate 304, and the rotation connection of the arc-shaped pressure plate 304 is provided with a second torsion spring 305. 5. The arc-shaped pressing plate 304 is inclined inwardly and downwardly, and the bottom of the arc-shaped pressing plate 304 is an obtuse arc that bends upward. After the material enters the cabinet 101, the motor 301 is controlled to rotate, which can drive the movable plate 303 and the device thereon to close inwardly or separate outwardly. By closing the movable plate 303 inwardly, the material placed on the top of the placement plate 103 is moved closer to the middle for positioning. At the same time, because the bottom of the arc-shaped pressing plate 304 is an obtuse arc that bends upward, when the placement plate 103 moves inwardly and encounters resistance from a hard limit, the arc-shaped pressing plate 304 will directly pass over the edge of the material and press on top of the material, so that the material will not be crushed. After the material is heat-sealed, the movable plate 303 moves outward and resets under the action of the motor 301.

[0038] like Figure 8 As shown, a collecting mechanism 4 is also included. The collecting mechanism 4 is rotatably connected to the lower left corner of the front side of the cabinet 101. The collecting mechanism 4 includes a collecting frame 401 and a third torsion spring 402. The collecting frame 401 is rotatably connected to the lower left corner of the front side of the cabinet 101. The collecting frame 401 is on the front side of the cutter 204. A third torsion spring 402 is provided at the rotating connection of the collecting frame 401. After the cutter 204 cuts off the excess waste, the waste falls into the collecting frame 401.

[0039] like Figure 7 As shown, it also includes a rear positioning mechanism 5. The hot press 105 is equipped with a rear positioning mechanism 5. The rear positioning mechanism 5 includes an electric wheel 502. The front of the hot press 105 is provided with an installation opening 501. The electric wheel 502 is installed in the installation opening 501. The outer surface of the electric wheel 502 is provided with a rubber sleeve. By rotating the electric wheel 502, the material on the placement plate 103 can be pushed to move to the rear side.

[0040] like Figure 8As shown, a cleaning mechanism 6 is also included. Cleaning mechanisms 6 are provided on the left and right walls of the cabinet 101. The cleaning mechanism 6 includes a vacuum cleaner 601. The vacuum cleaner 601 is installed below the left and right walls of the cabinet 101. The discharge port 602 of the vacuum cleaner 601 is above the collection frame 401. Before performing the packaging operation, the vacuum cleaner 601 is controlled to start working, which can absorb impurities on the surface of the material and facilitate subsequent packaging operations.

[0041] When the device is needed, the placing plate 103 is first driven to move forward and sent out by the first electric rail 102, and the placing plate 103 pushes the collecting frame 401 to rotate outward, and the third torsion spring 402 is deformed, and then the material is placed on the placing plate 103, and then the placing plate 103 and the material on it are driven to move inward to the packaging station by the first electric rail 102. At this time, the third torsion spring 402 is reset, driving the collecting frame 401 to rotate inward and reset. At this time, the second electric rail 104 is controlled to drive the hot press 105 to move downward to perform the packaging operation of the material. At this time, the electric wheel 502 is also controlled to rotate. When the electric wheel 502 contacts the material, it pushes the material to move to the rear side. After the rear side of the material is in contact with the limit plate 107, the material stops moving. Then, the hot press 105 performs the packaging operation. After the material is packaged, the hot press 105 is driven to move upward and reset by the second electric rail 104. At this time, the third electric rail 104 is controlled to The cutter 204 is then driven downward by the third electric track 203 to move back to its original position, and the first torsion spring 206 is reset, driving the protrusion 202 and the pressure rod 201 to reset and no longer press the material. The first electric track 102 is then controlled again to push out the packaged material and take the material. The above operation is then repeated to package the remaining material. After the packaging work is completed, the control device stops working.

[0042] A packaging process for a soft-package lithium-ion battery cell comprises the following steps:

[0043] Step 1: The placing plate 103 is sent out by the first electric track 102 for unloading. After unloading, the placing plate 103 and the materials thereon are moved to the packaging station by the first electric track 102;

[0044] Step 2: The second electric track 104 drives the hot press 105 to package the material;

[0045] Step 3: The third electric track 203 drives the cutter 204 to move upward to cut off the waste;

[0046] Step 4: The packaged materials on the placement plate 103 are sent out through the first electric track 102 and the materials are taken out.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A packaging machine for soft-packaged lithium-ion batteries, comprising a packaging machine body (1) and a cutting mechanism (2), wherein the cutting mechanism (2) is provided in the packaging machine body (1), and the cutting mechanism (2) is located on the side of the hot pressing edge, and is characterized in that: The cutting mechanism (2) comprises a pressure rod (201), a protrusion (202), a third electric track (203), a cutter (204), a push rod (205) and a first torsion spring (206). The lower front portions of the left and right walls of the packaging machine body (1) are both connected to the pressure rod (201) via an axis. The front end of the axis connecting the pressure rod (201) is fixedly connected to the protrusion (202). The pressure rod (201) rotates synchronously with the protrusion (202). A first torsion spring (206) is provided at the rotation connection of the pressure rod (201). The lower front portion of the placement plate (103) is fixedly connected to the third electric track (203). The cutter (204) is fixedly connected between the sliders of the third electric track (203). The left and right sides of the cutter (204) are both connected to push rods (205) extending upward. The push rods (205) are located below the protrusion (202). The packaging machine body (1) comprises a cabinet (101), a first electric track (102), a placement plate (103), a second electric track (104), a hot press (105) and a limit plate (107); the first electric track (102) is fixedly connected to the bottom of the cabinet (101) in a symmetrical manner; the placement plate (103) is fixedly connected between the sliders on the top of the first electric track (102); the second electric track (104) is vertically fixedly connected to the upper left and right walls of the cabinet (101); the hot press (105) is fixedly connected between the sliders of the second electric track (104); and the limit plate (107) is fixedly connected to the rear side of the top of the placement plate (103) in a symmetrical manner; The hot press (105) further comprises a rear positioning mechanism (5), the rear positioning mechanism (5) being installed on the hot press (105), the rear positioning mechanism (5) comprising an electric wheel (502), a mounting opening (501) being provided at the front of the hot press (105), the electric wheel (502) being installed in the mounting opening (501), and the outer surface of the electric wheel (502) being covered with a rubber sleeve.

2. The packaging machine for soft-packaged lithium-ion batteries according to claim 1, characterized in that: It also includes a rack plate (106), and the bottom edge of the hot press (105) and the top edge of the placement plate (103) are provided with a rack plate (106) that engages with each other.

3. The packaging machine for a soft-package lithium-ion battery cell according to claim 2, wherein: A fan (108) is also included, and the fan (108) is fixedly connected to the lower portion of the rear wall of the cabinet (101).

4. The packaging machine for soft-packaged lithium-ion batteries according to claim 1, characterized in that: The side positioning mechanism (3) is also included. The side positioning mechanism (3) is provided on the placement plate (103). The side positioning mechanism (3) includes a motor (301), a screw rod (302), a movable plate (303), an arc-shaped pressure plate (304) and a second torsion spring (305). The motor (301) is fixedly connected to the middle of the right side of the placement plate (103). The output shaft on the left side of the motor (301) is connected to the screw rod (302). The left end of the screw rod (302) is connected to the placement plate through a bearing seat. The left portion of the placement plate (103) is rotatably connected, and the left and right portions of the screw rod (302) are both connected to the movable plate (303) by threads. The movable plate (303) is slidably connected to the placement plate (103). The top of the movable plate (303) is rotatably connected to an arc-shaped pressing plate (304). A second torsion spring (305) is provided at the rotation connection of the arc-shaped pressing plate (304). The arc-shaped pressing plate (304) is inclined inwardly and downwardly, and the bottom of the arc-shaped pressing plate (304) is an obtuse arc that bends upward.

5. The packaging machine for soft-packaged lithium-ion batteries according to claim 4, characterized in that: The cabinet (101) further comprises a collecting mechanism (4), wherein the collecting mechanism (4) is rotatably connected to the lower left corner of the front lower part of the cabinet (101), and the collecting mechanism (4) comprises a collecting frame (401) and a third torsion spring (402). The collecting frame (401) is rotatably connected to the lower left corner of the front lower part of the cabinet (101), and the collecting frame (401) is located in front of the cutter (204). The third torsion spring (402) is provided at the rotation connection of the collecting frame (401).

6. The packaging machine for soft-packaged lithium-ion batteries according to claim 5, characterized in that: The cabinet (101) further comprises a cleaning mechanism (6), wherein the left and right walls of the cabinet (101) are both provided with the cleaning mechanism (6), and the cleaning mechanism (6) comprises a vacuum cleaner (601), which is installed below the left and right walls of the cabinet (101), and the discharge port (602) of the vacuum cleaner (601) is above the collection frame (401).

7. A packaging process for a soft-package lithium-ion battery cell, characterized in that: A packaging machine for a soft-package lithium-ion battery cell according to claim 6 comprises the following steps: Step 1: The placement plate (103) is sent out through the first electric track (102) for unloading, and after unloading is completed, the placement plate (103) and the material thereon are moved to the packaging station through the first electric track (102); Step 2: Using the second electric track (104) to drive the hot press (105) to package the material; Step 3: The cutter (204) is driven upward by the third electric track (203) to cut off the waste; Step 4: The packaged material on the placement plate (103) is sent out via the first electric track (102) and the material is taken out.

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