Laminating device

Abstract

The utility model belongs to the technical field of battery processing, and discloses a laminating device. The laminating device comprises a laminating mechanism and a tensioning mechanism, the laminating mechanism comprises two laminating assemblies which are oppositely arranged in the vertical direction, the lower laminating assembly is used for bearing the pole piece, and the aluminum plastic film is conveyed between the two laminating assemblies at intervals in the first direction and located at the laminating height; the two laminating assemblies can be close to each other to a laminating height and heat and laminate the pole piece and the aluminum plastic film; the tensioning mechanism comprises two clamping assemblies, the two clamping assemblies are located on the two sides, in the first direction, of the attaching mechanism correspondingly, the clamping assemblies can clamp or loosen the aluminum plastic films at the corresponding positions, and the two clamping assemblies jointly tension the aluminum plastic films corresponding to the attaching mechanism. According to the laminating device, the aluminum-plastic film is in a tightened state in the laminating process, so that the aluminum-plastic film is prevented from wrinkling in the heating laminating process, and after the tensioned aluminum-plastic film is good in flatness, the degree of parallelism between the tensioned aluminum-plastic film and a pole piece is relatively good, and bubbles are also prevented from being generated.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery processing technical field especially relates to a laminating device. BACKGROUND

[0002] For soft package battery, need to be with aluminum plastic film laminated together, generally need two stations to realize, positive pole piece and negative pole piece respectively and aluminum plastic film laminated, for single one station, aluminum plastic film laminated time, with the form of material belt wait laminated, laminated process, often occur aluminum plastic film and pole piece laminated after, there is wrinkle or bubble phenomenon, this influenced battery package performance, buried hidden trouble for battery package later use.

[0003] Therefore, urgent need designs a laminating device to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model discloses a laminating device, the flatness of aluminum plastic film after laminating is high, has no bubble or wrinkle, guarantees the performance of finished product battery.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] Laminating device for laminating pole piece and aluminum plastic film, the laminating device includes:

[0007] Laminating mechanism includes two laminating components oppositely arranged in the vertical direction, the lower laminating component is used for supporting pole piece, the aluminum plastic film is transmitted along the first direction between two laminating components and is located at the laminating height, two laminating components can be close to each other to the laminating height and heat laminating the pole piece and the aluminum plastic film, and the first direction is perpendicular to the vertical direction;

[0008] Tensioning mechanism includes two clamping components, two clamping components are located on both sides of the laminating mechanism along the first direction, the clamping component can clamp or loosen the aluminum plastic film at the corresponding position, and two clamping components tension the aluminum plastic film corresponding to the laminating mechanism.

[0009] As an optional scheme, define the clamping component upstream of the aluminum plastic film transmission direction as the first clamping component, and the other is the second clamping component, the second clamping component can be close to the first clamping component along the first direction in the loosened state, and be away from the first clamping component along the first direction in the clamped state.

[0010] As an optional scheme, the second clamping component includes:

[0011] The avoiding driving member is capable of outputting movement in a second direction, the second direction being at an angle with the first direction;

[0012] The clamping jaw driving member is installed at the output end of the avoiding driving member, and the clamping jaw driving member is capable of driving the two clamping jaws to move towards or away from each other.

[0013] As an optional solution, the lamination mechanism further comprises a mounting frame, and the lamination assembly comprises:

[0014] The lamination driving member is installed at the mounting frame, and the lamination driving member is capable of outputting movement in the vertical direction.

[0015] The heat insulation plate is installed at the output end of the lamination driving member.

[0016] The heating member is connected to the heat insulation plate, the first heat transfer plate is connected to the side of the heating member away from the heat insulation plate, and the heating member is configured to heat the first heat transfer plate.

[0017] As an optional solution, the heating member comprises:

[0018] The second heat transfer plate is connected between the heat insulation plate and the first heat transfer plate.

[0019] The heating pipe is arranged through the second heat transfer plate and is capable of being heated to heat the second heat transfer plate.

[0020] As an optional solution, the lamination driving member is a cylinder, and a pressure regulating valve is arranged on the connecting pipeline of the cylinder.

[0021] As an optional solution, the first heat transfer plate is made of brass.

[0022] As an optional solution, the lamination device further comprises a feeding mechanism, and the feeding mechanism comprises:

[0023] The storage member is located upstream of the lamination mechanism, and the pole piece is placed on the upper side of the storage member.

[0024] The feeding assembly comprises a feeding driving member, a lifting driving member, and a picking member, the lifting driving member is connected to the output end of the feeding driving member, the feeding driving member is capable of driving the lifting driving member to move in the first direction to switch the picking member between the two positions of the storage member and the lamination assembly below, the picking member is installed at the output end of the lifting driving member, the lifting driving member is capable of driving the picking member to move in the vertical direction, and the picking member is capable of picking the pole piece on the storage member or placing the pole piece on the lamination assembly below.

[0025] As an optional solution, the pickup piece is provided with an adsorption hole and is communicated with the negative pressure mechanism.

[0026] As an optional solution, the pickup piece can simultaneously pick up or put down at least two pole pieces.

[0027] The utility model discloses the beneficial effect lies in:

[0028] The utility model provides a laminating device, through the setting of two clamping assemblies in the tensioning mechanism, between the compression of aluminium plastic film and pole piece, aluminium plastic film is tensioned by two clamping assemblies in the laminating mechanism in the corresponding section, then the height of aluminium plastic film is invariable, and the laminating assembly below is placed with pole piece, and two laminating assemblies are close to laminating height, and then pole piece and aluminium plastic film are heated and laminated, that is to say, aluminium plastic film is in the taut state in the laminating process, avoids the process of heating and laminating, and aluminium plastic film is wrinkled, and the flatness of aluminium plastic film that is tensioned is good, and the parallelism with pole piece is good, also avoids the generation of bubble, and then guarantees the performance of finished product battery. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is the first structure schematic drawing of laminating device provided by the utility model embodiment;

[0030] Figure 2 It is the second structure schematic drawing of laminating device provided by the utility model embodiment;

[0031] Figure 3 It is the structure schematic drawing of laminating mechanism provided by the utility model embodiment.

[0032] In the drawing:

[0033] 10, laminating mechanism, 11, laminating assembly, 111, laminating drive piece, 112, heat insulation plate, 113, heating piece, 1131, second heat transfer plate, 1132, heating tube, 114, first heat transfer plate, 12, mounting frame,

[0034] 20, tensioning mechanism, 21, first clamping assembly, 22, second clamping assembly, 221, avoiding drive piece, 222, clamping jaw drive piece, 223, clamping jaw, 30, pressure regulating valve,

[0035] 40, feeding mechanism, 41, storage piece, 42, feeding assembly, 421, feeding drive piece, 422, lifting drive piece, 423, pickup piece,

[0036] 800, aluminium plastic film, 900, pole piece. DETAILED DESCRIPTION

[0037] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely used to explain the utility model and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.

[0038] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0039] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] In the description of the embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore cannot be understood as a limitation of the utility model. In addition, the terms "first", "second" are only used to distinguish in description and have no special meaning.

[0041] The embodiment provides a fitting device, which is used for fitting the aluminum plastic film 800 and the pole piece 900, the flatness of the aluminum plastic film 800 after fitting is high, without bubbles or wrinkles, and the performance of the finished battery is ensured. Figures 1-3As shown, the bonding device includes a bonding mechanism 10 and a tensioning mechanism 20. The bonding mechanism 10 includes two bonding components 11 arranged opposite each other in the vertical direction (Z direction in the figure). The lower bonding component 11 is used to support the electrode 900. The aluminum-plastic film 800 is transmitted between the two bonding components 11 along the first direction (X direction in the figure, which is perpendicular to the Z direction) and is located at the bonding height. The two bonding components 11 can approach each other to the bonding height and heat and bond the electrode 900 and the aluminum-plastic film 800. The tensioning mechanism 20 includes two clamping components (see the first clamping component 21 and the second clamping component 22 in the figure). The two clamping components are located on both sides of the bonding mechanism 10 along the first direction. The clamping components can clamp or release the aluminum-plastic film 800 at the corresponding position, and the two clamping components together tension the aluminum-plastic film 800 corresponding to the bonding mechanism 10.

[0042] The aforementioned bonding device, through the arrangement of two clamping components in the tensioning mechanism 20, tensions the aluminum-plastic film 800 in the corresponding segment of the bonding mechanism 10 between pressing the aluminum-plastic film 800 and the electrode 900 together. Figure 2 (In the state of the aluminum-plastic film 800), the height of the aluminum-plastic film 800 remains unchanged, and the electrode 900 is placed on the bonding component 11 below. The two bonding components 11 move closer to the bonding height, thereby heating and bonding the electrode 900 and the aluminum-plastic film 800 together. That is to say, the aluminum-plastic film 800 is in a taut state during the bonding process, which avoids wrinkling of the aluminum-plastic film 800 during the heating and bonding process. After the taut aluminum-plastic film 800 is flat, the parallelism with the electrode 900 is better, which also avoids the generation of air bubbles, thereby ensuring the performance of the finished battery.

[0043] In an alternative embodiment, such as Figure 1 and Figure 2 As shown, the clamping component upstream of the aluminum-plastic film 800 in the transmission direction is defined as the first clamping component 21, and the other is defined as the second clamping component 22. The second clamping component 22 can move closer to the first clamping component 21 in the first direction when it is in the loose state, and move away from the first clamping component 21 in the first direction when it is in the clamping state. That is, when the aluminum-plastic film 800 is tensioned, the second clamping component 22 and the first clamping component 21 are located on both sides of the bonding mechanism 10 in the first direction, respectively. After bonding, the second clamping component 22 loosens the aluminum-plastic film 800 and moves in the -X direction until the second clamping component 22 and the first clamping component 21 are located on the same side of the bonding mechanism 10. At this time, the second clamping component 22 clamps the aluminum-plastic film 800 again and moves in the +X direction (at this time, the first clamping component 21 is also in the loose state), pulling a new section of aluminum-plastic film 800 into the bonding mechanism 10, ready for the next bonding. Understandably, the second clamping component 22 serves both to tension the aluminum-plastic film 800 and to assist in the intermittent transmission of the aluminum-plastic film 800.

[0044] The driving element driving the second clamping assembly 22 to move in the first direction is not shown in the figure and can be any driving element capable of outputting linear motion, such as a linear motor, a linear module, or a pneumatic cylinder, and the like, which is not limited here.

[0045] In an optional embodiment, as shown in Figure 2 The second clamping assembly 22 includes an avoiding driving element 221 capable of outputting motion in the second direction (Y direction in the figure, the Y direction is perpendicular to the X direction and the Z direction, respectively), a jaw driving element 222 installed at the output end of the avoiding driving element 221, and two jaws 223 driven by the jaw driving element 222 to move closer to or away from each other. Due to the complex structure of the laminating mechanism 10, the avoiding driving element 221 is provided, and when the second clamping assembly 22 moves in the first direction, the avoiding driving element 221 first drives the jaw driving element 222 and the two jaws 223 to move in the second direction away from the laminating mechanism 10. When the second clamping assembly 22 is driven to move in the first direction, it will not interfere with the laminating mechanism 10. After reaching the position, the avoiding driving element 221 drives the jaw driving element 222 to move close to the aluminum-plastic film 800.

[0046] The combination of the jaw driving element 222 and the two jaws 223 is a common jaw cylinder in the prior art, which is not described here.

[0047] Optionally, as shown in Figure 3 The laminating mechanism 10 further includes a mounting frame 12, and the laminating assembly 11 includes a laminating driving element 111, a heat insulation plate 112, a heating element 113, and a first heat transfer plate 114. The laminating driving element 111 is installed on the mounting frame 12 and is capable of outputting motion in the vertical direction. The heat insulation plate 112 is installed at the output end of the laminating driving element 111. The heating element 113 is connected to the heat insulation plate 112, and the first heat transfer plate 114 is connected to the side of the heating element 113 away from the heat insulation plate 112. The heating element 113 is configured to heat the first heat transfer plate 114. Through the above arrangement, the laminating driving element 111 drives the heat insulation plate 112, the heating element 113, and the first heat transfer plate 114 to move up and down to realize the mutual approach or separation of another laminating assembly 11.

[0048] The mounting frame 12 has a generally U-shaped structure, facilitating the relative installation of the two laminating assemblies 11.

[0049] Optionally, as shown in Figure 3As shown, the heating member 113 comprises a second heat transfer plate 1131 connected between the heat insulation plate 112 and the first heat transfer plate 114, and a heating tube 1132 penetrating the second heat transfer plate 1131 and capable of being heated to heat the second heat transfer plate 1131. Through the above arrangement, the heating member 113 can be heated, and the first heat transfer plate 114 can be heated in turn. The heating tube 1132 is powered to heat, and the on-off of the circuit can be controlled by the control system to accurately control the heating time and avoid waste of heat source.

[0050] Optionally, the first heat transfer plate 114 is made of brass. Brass has high heat transfer efficiency, and heat can be rapidly spread on the surface thereof, thereby ensuring the uniformity of the heating of the aluminum plastic film 800 and the pole piece 900.

[0051] Optionally, as shown in Figure 3 The fitting driving member 111 is a gas cylinder, and a pressure regulating valve 30 is arranged on the connecting pipeline of the gas cylinder. The pressure of the gas in the connecting pipeline of the gas cylinder is dynamically adjusted by the pressure regulating valve 30 to avoid uneven pressure.

[0052] Optionally, as shown in Figure 1 and Figure 2 The fitting device further comprises a feeding mechanism 40, the feeding mechanism 40 comprises a storage member 41 and a feeding assembly 42, the storage member 41 is located upstream of the fitting mechanism 10, and the pole piece 900 is placed on the upper side of the storage member 41; the feeding assembly 42 comprises a feeding driving member 421, a lifting driving member 422, and a picking member 423, the lifting driving member 422 is connected to the output end of the feeding driving member 421, the feeding driving member 421 can drive the lifting driving member 422 to move in the first direction to switch the picking member 423 between the storage member 41 and the fitting assembly 11 below, the picking member 423 is installed on the output end of the lifting driving member 422, the lifting driving member 422 can drive the picking member 423 to move in the vertical direction, and the picking member 423 can pick the pole piece 900 on the storage member 41 or place the pole piece 900 on the fitting assembly 11 below. Among them, Figure 1 The schematic diagram of the picking member 423 in the two positions of the storage member 41 and the fitting assembly 11 is given, Figure 2In the middle, the pickup 423 at the assembly 11, when the material driving piece 421 drive pickup 423 to reach the storage piece 41 above, lifting drive 422 drive pickup 423 down, pickup 423 pickup pole piece 900, lifting drive 422 drive pickup 423 up, feeding drive 421 drive lifting drive 422 and pickup 423 along the first direction, when the pickup 423 to the lower side of the assembly 11, lifting drive 422 drive pickup 423 down, pickup 423 release pole piece 900, and then complete the pole piece 900 to the lower side of the assembly 11 feeding operation.

[0053] In an alternative embodiment, the pickup 423 is provided with suction holes and communicates with the negative pressure mechanism. That is, the pickup 423 picks up the pole piece 900 by suction, and releases the pole piece 900 by removing the negative pressure of the negative pressure mechanism. The whole process avoids damaging the pole piece 900.

[0054] Optionally, as shown in Figure 2 At least two pole pieces 900 are placed on the storage piece 41 at the same time, and the pickup 423 can pick up or release at least two pole pieces 900 at the same time. Through the above arrangement, the simultaneous feeding of at least two pole pieces 900 is realized, the feeding efficiency is improved, and the number of successfully laminated pole pieces 900 after each lamination operation is increased.

[0055] In the embodiment, as shown in Figure 2 and Figure 3 At least four pole pieces 900 are placed on the storage piece 41 at the same time, and eight pole pieces 900 can be stored on the lower assembly 11. That is, the feeding mechanism 40 transports twice, and the lamination mechanism 10 laminates once.

[0056] In other embodiments, the number of pole pieces 900 on the storage piece 41 can also be two, three, five, etc., which is not limited here. The number of pole pieces 900 that can be carried on the lower assembly 11 is a multiple of the number of pole pieces 900 on the storage piece 41, which can be one, three or four times, etc., which is not limited here.

[0057] Obviously, the above embodiments of the utility model are only examples for clear illustration of the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled persons in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A laminating apparatus for laminating a pole piece (900) and an aluminum laminate film (800), characterized by, The fitting device comprises: The fitting mechanism (10) comprises two fitting assemblies (11) arranged opposite in the vertical direction, the lower fitting assembly (11) is used for supporting the pole piece (900), the aluminum plastic film (800) is transmitted between the two fitting assemblies (11) along the first direction and is located at the fitting height, the two fitting assemblies (11) can approach each other to the fitting height and heat and fit the pole piece (900) and the aluminum plastic film (800), and the first direction is perpendicular to the vertical direction; The tensioning mechanism (20) comprises two clamping assemblies, the two clamping assemblies are respectively located on the two sides of the fitting mechanism (10) along the first direction, the clamping assembly can clamp or release the aluminum plastic film (800) at the corresponding position, and the two clamping assemblies jointly tension the aluminum plastic film (800) corresponding to the fitting mechanism (10).

2. The apparatus of claim 1, wherein The clamping assembly upstream of the transmission direction of the aluminum plastic film (800) is defined as the first clamping assembly (21), and the other is the second clamping assembly (22), the second clamping assembly (22) can approach the first clamping assembly (21) along the first direction in the released state, and can move away from the first clamping assembly (21) along the first direction in the clamped state.

3. The apparatus of claim 2, wherein The second clamping assembly (22) comprises: The avoidance driving member (221) can output movement along the second direction, and the second direction is arranged at an angle with the first direction; The claw driving member (222) and the two claws (223), the claw driving member (222) is installed on the output end of the avoidance driving member (221), and the claw driving member (222) can drive the two claws (223) to approach or move away from each other.

4. The application according to any one of claims 1-3, wherein, The fitting mechanism (10) further comprises a mounting frame (12), and the fitting assembly (11) comprises: The fitting driving member (111) is installed on the mounting frame (12), and the fitting driving member (111) can output movement along the vertical direction; The heat insulation plate (112) is installed on the output end of the fitting driving member (111); The heating member (113) and the first heat transfer plate (114), the heating member (113) is connected to the heat insulation plate (112), the first heat transfer plate (114) is connected to the side of the heating member (113) away from the heat insulation plate (112), and the heating member (113) is configured to heat the first heat transfer plate (114).

5. The apparatus of claim 4, wherein The heating member (113) comprises: The second heat transfer plate (1131) is connected between the heat insulation plate (112) and the first heat transfer plate (114); The heating pipe (1132) penetrates the second heat transfer plate (1131) and can be heated to heat the second heat transfer plate (1131).

6. The apparatus of claim 4, wherein The fitting driving member (111) is a gas cylinder, and a pressure regulating valve (30) is arranged on the connecting pipeline of the gas cylinder.

7. The apparatus of claim 4, wherein The material of the first heat transfer plate (114) is brass.

8. The application of any one of claims 1-3, wherein, The fitting device further comprises a feeding mechanism (40), and the feeding mechanism (40) comprises: A storage piece (41) is located upstream of the laminating mechanism (10), and the upper side of the storage piece (41) is provided with the pole piece (900); An upper feeding assembly (42) comprises an upper feeding driving member (421), a lifting driving member (422) and a pickup piece (423), the lifting driving member (422) is connected to the output end of the upper feeding driving member (421), the upper feeding driving member (421) can drive the lifting driving member (422) to move along the first direction to switch the pickup piece (423) between the storage piece (41) and the laminating assembly (11) below, the pickup piece (423) is installed on the output end of the lifting driving member (422), the lifting driving member (422) can drive the pickup piece (423) to move along the vertical direction, and the pickup piece (423) can pick up the pole piece (900) on the storage piece (41) or place the pole piece (900) on the laminating assembly (11) below.

9. The application of claim 8, wherein, The pickup piece (423) is provided with a suction hole and communicates with a negative pressure mechanism.

10. The application of claim 8, wherein At least two pole pieces (900) are simultaneously placed on the storage piece (41), and the pickup piece (423) can simultaneously pick up or place down at least two pole pieces (900).

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