Heat-shrink forming mechanism and battery processing apparatus

By designing multi-zone heating stations and cyclic movement of conveying components in the heat shrink molding mechanism, the problem of battery overheating was solved, and the baking time was extended and the temperature was reduced without increasing the space, thereby improving battery quality.

WO2026118587A1PCT designated stage Publication Date: 2026-06-11WUXI LEAD INTELLIGENT EQUIP CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-09-04
Publication Date
2026-06-11

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Abstract

Disclosed in the present application are a heat-shrink forming mechanism and a battery processing apparatus. The heat-shrink forming mechanism comprises: a heating station, wherein the heating station comprises a first region, a second region and a third region, the first region and the third region being spaced apart from each other in a first direction, and the second region being located between the first region and the third region; a heating assembly, wherein the heating assembly is arranged at the heating station; and a conveying assembly, wherein the conveying assembly is used for conveying workpieces, a conveying end of the conveying assembly being capable of cyclically moving among the first region, the second region and the third region. The technical solution of the present application enables extended baking time for a battery film, so that the heat-shrink temperature of the battery film can be reduced by prolonging the baking time, thereby preventing the production of non-compliant batteries due to overheating.
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Description

Heat shrink molding mechanism and battery processing equipment

[0001] This disclosure claims priority to Chinese Patent Application No. 202422995355.0, filed on December 5, 2024, entitled “A heat shrink molding mechanism and battery processing equipment”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application belongs to the field of battery processing equipment technology, and particularly relates to heat shrink molding mechanisms and battery processing equipment. Background Technology

[0003] During the battery manufacturing process, a heat-shrink film needs to be wrapped around the battery casing. The heat-shrink film is heated and shrunk onto the surface of the battery casing by a heat-shrink molding mechanism.

[0004] In related technologies, in order to save space in the heat shrink molding mechanism, the temperature of the heating component is increased to shorten the heat shrinking time after the battery is coated. However, the high temperature of the heating component can cause the battery to overheat and affect its quality. Summary of the Invention

[0005] The purpose of this application is to provide a heat shrink molding mechanism and battery processing equipment.

[0006] According to a first aspect of the embodiments of this application, a heat shrink molding mechanism is provided, comprising:

[0007] A heating station, comprising a first region, a second region, and a third region, wherein the first region and the third region are spaced apart along a first direction, and the second region is located between the first region and the third region;

[0008] A heating assembly is provided at the heating station;

[0009] A conveying assembly for conveying workpieces, wherein the conveying end of the conveying assembly is capable of cyclically moving between the first region, the second region, and the third region.

[0010] Optionally, the first region is provided with at least one of the heating components; and / or

[0011] The second region is provided with at least one of the aforementioned heating components; and / or

[0012] The third region is provided with at least one of the heating components.

[0013] Optionally, the conveying assembly includes at least one carrier configured to hold a workpiece, the carrier being capable of cyclically moving along the first region, the second region, and the third region in sequence.

[0014] Optionally, the conveying assembly includes a driving member, a driving wheel, a driven wheel, and a transmission member. The driving wheel and the driven wheel are spaced apart along a second direction. The transmission member is sleeved on the driving wheel and the driven wheel. The carrier is disposed on the transmission member. The driving end of the driving member is connected to the driving wheel. The driving member can drive the driving wheel to rotate around its own axis. The driving wheel drives the transmission member to move cyclically around the first region, the second region, and the third region.

[0015] Optionally, the carrier includes a mounting base and a push rod, the push rod being rotatably connected to the mounting base and capable of rotating about its own axis, with the workpiece placed at the end of the push rod away from the mounting base.

[0016] Optionally, the conveying assembly further includes a transmission unit, the side wall of the top rod abuts against the transmission unit, the transmission member drives the carrier to move, and the transmission unit can drive the top rod to rotate about its own axis.

[0017] Optionally, the transmission part includes a friction belt; the side wall of the push rod has a groove, and the groove abuts against the friction belt.

[0018] Optionally, the transmission part includes a rack; the side wall of the push rod is provided with a toothed groove, which meshes with the rack.

[0019] Optionally, the heating station further includes a fourth region, which is spaced apart from the third region along a second direction and is located between the first region and the second region; the fourth region is provided with at least one of the heating components; the conveying end of the conveying component can cyclically move between the first region, the second region, the third region and the fourth region.

[0020] According to a second aspect of the embodiments of this application, battery processing equipment is provided, including the heat shrink molding mechanism described above.

[0021] One technical advantage of this application embodiment is that the first region and the third region are spaced apart along the first direction, and the second region is located between the first region and the third region. The conveying component conveys the workpiece through the first region, the second region and the third region in sequence. Without increasing the space occupied by the heat shrink molding mechanism, the baking time of the battery film can be extended. While extending the baking time, the heat shrink temperature of the battery film can be reduced to avoid the battery overheating and producing defective products.

[0022] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0024] Figure 1 is a schematic diagram of the heat shrink molding mechanism and the film-applying mechanism in the embodiments of this application;

[0025] Figure 2 is a schematic diagram of the heat shrink molding mechanism and the film stamping mechanism in the embodiment of this application;

[0026] Figure 3 is a magnified view of part A in Figure 2;

[0027] Figure 4 is a schematic diagram of the heat shrink molding mechanism and the film stamping mechanism in the embodiments of this application.

[0028] Explanation of reference numerals in the attached drawings: First region 11; Second region 12; Third region 13; Fourth region 14; Heating component 2; Conveying component 3; Carrier 31; Mounting base 311; Top rod 312; Groove 3121; Transmission part 32; Film taping station 5; Film taping mechanism 6. Detailed Implementation

[0029] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0030] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0031] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0032] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0034] First, it should be noted that the first direction, second direction, and third direction mentioned in the embodiments of this application are indicated by the directions marked in Figure 1. The first direction, second direction, and third direction intersect each other.

[0035] As shown in Figures 1-3, according to a first aspect of the embodiments of this application, a heat shrink molding mechanism is provided, including a heating station, a heating component 2, and a conveying component 3; the heating station includes a first region 11, a second region 12, and a third region 13, the first region 11 and the third region 13 being spaced apart along a first direction, and the second region 12 being located between the first region 11 and the third region 13; the heating component 2 is disposed at the heating station; the conveying component 3 is used to convey workpieces, and the conveying end of the conveying component 3 can cyclically move between the first region 11, the second region 12, and the third region 13.

[0036] The heat-shrink forming mechanism in this application is used to heat-shrink the heat-shrink film fitted onto the battery casing; it can also be used to heat-shrink the heat-shrink film on other products or workpieces, or to heat other products or workpieces. This application does not specifically limit its use in this regard. In the embodiments of this application, a battery fitted with heat-shrink film is used as an example for illustration; it will be referred to as battery film below.

[0037] As shown in Figures 1 and 2, the heat shrink molding mechanism includes a heating station, multiple heating components 2, and a conveying component 3. The heating station includes a first region 11, a second region 12, and a third region 13, which are spaced apart along a first direction. The second region 12 is located between the first region 11 and the third region 13, and the first region 11, second region 12, and third region 13 are arranged sequentially. The heating components 2 are located at the heating station and can heat the battery film located at the heating station, causing the film to shrink onto the battery casing. The conveying component 3 is used to convey the workpiece. The conveying component 3 includes a conveying end, where the workpiece is located. The conveying end can cyclically move between the first region 11, second region 12, and third region 13, meaning the battery film can cyclically move between these three regions.

[0038] To further explain, the first region 11 and the third region 13 are spaced apart along the first direction, and the second region 12 is located between the first region 11 and the third region 13. The conveying component 3 conveys the workpiece through the first region 11, the second region 12 and the third region 13 in sequence. Without increasing the space occupied by the heat shrink molding mechanism, the baking time of the battery film can be extended. While extending the baking time, the heat shrink temperature of the battery film can be reduced to avoid the battery overheating and producing defective products.

[0039] In one alternative embodiment, the first region 11 is provided with at least one of the heating components 2; and / or, the second region 12 is provided with at least one of the heating components 2; and / or, the third region 13 is provided with at least one of the heating components 2.

[0040] In one specific embodiment, the first region 11 is provided with at least one heating component 2.

[0041] In another specific embodiment, the second region 12 is provided with at least one heating component 2.

[0042] In another specific embodiment, the third region 13 is provided with at least one heating component 2.

[0043] In another specific embodiment, the first region 11 is provided with at least one heating component 2; the second region 12 is provided with at least one heating component 2.

[0044] In another specific embodiment, the first region 11 is provided with at least one heating component 2; the third region 13 is provided with at least one heating component 2.

[0045] In another specific embodiment, the second region 12 is provided with at least one heating component 2; the third region 13 is provided with at least one heating component 2.

[0046] In another specific embodiment, at least one heating element 2 is provided in the first region 11; at least one heating element 2 is provided in the second region 12; and at least one heating element 2 is provided in the third region 13. This embodiment will be described as an example.

[0047] Specifically, as shown in Figures 1 and 2, the first region 11 can be equipped with one, two, or three heating components 2, depending on the different travel distances of the conveying end of the conveying component 3 within the first region 11. Similarly, the second region 12 can also be equipped with one, two, or three heating components 2, again depending on the different travel distances of the conveying end of the conveying component 3 within the second region 12. Likewise, the third region 13 can also be equipped with one, two, or three heating components 2, depending on the different travel distances of the conveying end of the conveying component 3 within the third region 13. By setting multiple heating components 2 at the heating station, the temperature of each heating component 2 can be adjusted individually as needed, enabling the heat shrink molding mechanism to be compatible with different films. This improves the compatibility of the heat shrink molding mechanism and ensures that different films exhibit high heat shrink uniformity.

[0048] In one alternative embodiment, the conveying assembly 3 includes at least one carrier 31 configured to hold a workpiece, the carrier 31 being capable of cyclically moving along the first region 11, the second region 12 and the third region 13 in sequence.

[0049] As shown in Figures 1 and 2, the conveying assembly 3 includes at least one carrier 31, which is used to carry the battery film. The battery film is placed on the carrier 31. The conveying end of the conveying assembly 3 can convey the carrier 31 to move cyclically along the first region 11, the second region 12 and the third region 13. That is, the battery film passes through the first region 11, the second region 12 and the third region 13 in sequence. The heating assembly 2 heats the battery film, thereby causing the film to shrink due to heat.

[0050] The conveying assembly 3 includes multiple carriers 31, which are sequentially arranged at the conveying end of the conveying assembly 3. The multiple carriers 31 move simultaneously, passing through the first region 11, the second region 12, and the third region 13 in sequence. Setting multiple carriers 31 to work simultaneously can improve the working efficiency of the heat shrink molding mechanism.

[0051] In one optional embodiment, the conveying assembly 3 includes a driving member, a driving wheel, a driven wheel, and a transmission member. The driving wheel and the driven wheel are spaced apart along a second direction. The transmission member is sleeved on the driving wheel and the driven wheel. The carrier 31 is disposed on the transmission member. The driving end of the driving member is connected to the driving wheel. The driving member can drive the driving wheel to rotate around its own axis. The driving wheel drives the transmission member to move cyclically around the first region 11, the second region 12, and the third region 13.

[0052] As shown in Figure 1, the conveying assembly 3 includes a driving component, a driving wheel, a driven wheel, and a transmission component. The driving wheel and driven wheel are spaced apart along a second direction. The axis of the driving wheel is aligned with a third direction, as is the axis of the driven wheel. The transmission component is mounted on the driving wheel and driven wheel, and the carrier 31 is mounted on the transmission component. The driving wheel is connected to the driving end of the driving component, which enables the driving wheel to rotate around its own axis. In other words, the driving wheel can rotate around its third-direction axis. The driving component drives the driving wheel to rotate, thereby driving the transmission component to rotate. This means the transmission component can cyclically rotate between the first region 11, the second region 12, and the third region 13, and the carrier 31 can cyclically rotate between these regions.

[0053] In one specific implementation, the transmission component may be a transmission belt.

[0054] In another specific embodiment, the transmission component can be a chain; wherein both the drive wheel and the driving wheel are gears, and the chain meshes with the gears, thereby enabling chain transmission.

[0055] The driving component can be a motor or a rotary cylinder.

[0056] In one alternative embodiment, the carrier 31 includes a mounting base 311 and a push rod 312, the push rod 312 being rotatably connected to the mounting base 311, the push rod 312 being rotatable about its own axis, and the workpiece being placed at the end of the push rod 312 away from the mounting base 311.

[0057] As shown in Figure 3, the carrier 31 includes a mounting base 311 and a push rod 312. One end of the push rod 312 is rotatably connected to the mounting base 311, and the push rod 312 can rotate about its own axis. The axis of the push rod 312 is in the same direction as a third direction, and the other end of the push rod 312 is used to place the workpiece; therefore, the workpiece can rotate about a third direction.

[0058] When the battery membrane is placed on the push rod 312 of the carrier 31, the battery membrane can move with the carrier 31 in the first region 11, the second region 12, and the third region 13, and can also rotate under the drive of the push rod 312. Therefore, when the battery membrane enters the heating station with the carrier 31, its rotation under the drive of the push rod 312 can make the membrane heat up more evenly.

[0059] One of the top rods 312 is equipped with a magnet at the end away from the mounting base 311, which is used to attract the battery film; or the other end of the top rod 312 is equipped with a suction cup at the end away from the mounting base 311, which is used to attract the battery film through vacuum adsorption.

[0060] In one specific embodiment, the carrier 31 includes a motor, the output of which is connected to one end of the push rod 312, and the motor is capable of driving the push rod 312 to rotate about its own axis.

[0061] In another specific embodiment, as shown in FIG3, the conveying assembly 3 further includes a transmission part 32, the side wall of the push rod 312 abuts against the transmission part 32, the transmission member drives the carrier 31 to move, and the transmission part 32 can drive the push rod 312 to rotate around its own axis.

[0062] In one specific embodiment, the transmission part 32 includes a friction belt; the side wall of the push rod 312 is provided with a groove 3121, and the groove 3121 abuts against the friction belt.

[0063] Further explanation: The transmission unit 32 includes a friction belt, which is positioned above the driving and driven wheels in a third-direction direction. The friction belt surrounds the first region 11, the second region 12, and the third region 13. A groove 3121 is formed on the side wall of the push rod 312. When the transmission component drives the carrier 31 to move in the first region 11, the second region 12, and the third region 13, the groove 3121 abuts against the friction belt, causing the push rod 312 to rub against the friction belt. Therefore, the push rod 312 can be driven to rotate around its own axis, thereby causing the battery film to rotate around its own axis. In this embodiment, the rotation of the push rod 312 is achieved by friction between the friction belt and the side wall of the push rod 312. This method has a simple structure, is easy to install, and has a low cost.

[0064] In another specific embodiment, the transmission part 32 includes a rack; the side wall of the push rod 312 is provided with a toothed groove, which meshes with the rack.

[0065] Further explanation: The transmission unit 32 includes a rack, which is positioned above the driving and driven wheels in a third-order direction. The rack is arranged in a ring around the first region 11, the second region 12, and the third region 13. The side wall of the push rod 312 has a toothed groove that meshes with the rack. When the transmission component drives the carrier 31 to move in the first region 11, the second region 12, and the third region 13, the toothed groove will rotate, effectively rotating the rack. Therefore, it can drive the push rod 312 to rotate around its own axis, thereby causing the battery membrane to rotate around its own axis. In this embodiment, the structure is simple, easy to install, and has a low cost.

[0066] In an optional embodiment, as shown in FIG4, the heating station further includes a fourth region 14, which is spaced apart from the third region 13 along a second direction. The fourth region 14 is located between the first region 11 and the second region 12. The fourth region 14 is provided with at least one of the heating components 2. The conveying end of the conveying component 3 can cyclically move through the first region 11, the second region 12, the third region 13, and the fourth region 14. That is, the battery film passes through the first region 11, the second region 12, the third region 13, and the fourth region 14 in sequence, thereby further extending the baking time of the battery film and improving battery quality.

[0067] According to a second aspect of the embodiments of this application, battery processing equipment is provided, including the heat shrink molding mechanism described above.

[0068] Further explanation: As shown in Figures 1 and 2, the battery processing equipment also includes a film-applying station 5 and a film-applying mechanism 6. The film-applying station 5 is spaced apart from the second region 12 along a second direction, and the film-applying station 5 is located between the first region 11 and the third region 13. The film-applying mechanism 6 is located at the film-applying station 5 and is used to adjust the position between the film and the battery. The conveying end of the conveying component 3 moves cyclically between the film-applying station 5 and the heating station. Specifically, the film-applying mechanism 6 is located upstream of the heat-shrink molding mechanism. The film-applying mechanism 6 first adjusts the position between the battery and the film, and the conveying component 3 conveys the battery film adjusted at the film-applying station 5 to the heating station, where the heating component 2 heats the battery film.

[0069] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A heat shrink forming mechanism, characterized by, include: A heating station, comprising a first region, a second region, and a third region, wherein the first region and the third region are spaced apart along a first direction, and the second region is located between the first region and the third region; A heating assembly is provided at the heating station; A conveying assembly for conveying workpieces, wherein the conveying end of the conveying assembly is capable of cyclically moving between the first region, the second region, and the third region.

2. The heat shrink molding mechanism according to claim 1, characterized in that, The first region is provided with at least one of the heating components; and / or The second region is provided with at least one of the aforementioned heating components; and / or The third region is provided with at least one of the heating components.

3. The heat shrink forming mechanism of claim 2, wherein, The conveying assembly includes at least one carrier configured to hold a workpiece, the carrier being capable of cyclically moving along the first region, the second region, and the third region in sequence.

4. The heat shrink forming mechanism of claim 3, wherein, The conveying assembly includes a driving component, a driving wheel, a driven wheel, and a transmission component. The driving wheel and the driven wheel are spaced apart along a second direction. The transmission component is sleeved on the driving wheel and the driven wheel. The carrier is disposed on the transmission component. The driving end of the driving component is connected to the driving wheel. The driving component can drive the driving wheel to rotate around its own axis. The driving wheel drives the transmission component to cyclically move around the first region, the second region, and the third region.

5. The heat shrink forming mechanism of claim 4, wherein, The carrier includes a mounting base and a push rod, the push rod being rotatably connected to the mounting base and capable of rotating about its own axis, with the workpiece placed at the end of the push rod away from the mounting base.

6. The heat-shrink molding mechanism according to claim 5, characterized in that, The conveying assembly also includes a transmission part, the side wall of the top rod abuts against the transmission part, the transmission member drives the carrier to move, and the transmission part can drive the top rod to rotate around its own axis.

7. The heat shrink forming mechanism of claim 6, wherein, The transmission part includes a friction belt; the side wall of the push rod has a groove, which abuts against the friction belt.

8. The heat shrink molding mechanism according to claim 6, characterized in that, The transmission unit includes a rack; the side wall of the push rod has a toothed groove, which meshes with the rack.

9. The heat shrink forming mechanism of claim 1, wherein, The heating station further includes a fourth region, which is spaced apart from the third region along a second direction and is located between the first region and the second region; the fourth region is provided with at least one of the heating components; the conveying end of the conveying component can cyclically move between the first region, the second region, the third region and the fourth region.

10. A battery processing apparatus characterized by Includes the heat shrink molding mechanism as described in any one of claims 1-9.

Citation Information

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