Plate glue coating machine and plate glue coating method

Abstract

The present invention provides a plate glue coating machine and a plate glue coating method, comprising: a frame; a melt glue tank disposed on the frame, the melt glue tank having a first end and a second end in its lengthwise direction, a first clamping slot extending in the height direction of the melt glue tank provided on the end wall of the first end of the melt glue tank, the first clamping slot being used to accommodate the plate; a heating device disposed below the melt glue tank and heating the melt glue tank; and a plurality of heat-conducting structures disposed within the melt glue tank and spaced apart in the widthwise direction of the melt glue tank, with the intervals between two adjacent heat-conducting structures forming a receiving space for accommodating the plate. The technical solution of the present invention can effectively solve the problem of complex plate glue coating processes in the related art.

Description

Technical Field

[0001] The present invention relates to the field of plate gluing devices, in particular to a plate gluing machine and a plate gluing method. Background Art

[0002] Currently, cathode plates require galvanizing. The conventional method for galvanizing cathode plates is to place the plates in an electrolytic cell for electrolysis, where the resulting zinc adheres to the plates. The zinc layer is then mechanically removed to produce pure zinc. Before the cathode plates enter the electrolytic cell, the side edges of the plates must be insulated.

[0003] In the prior art, cathode plates are insulated by attaching insulating strips to the side edges of the cathode plates. These strips are provided with slots, and adhesive is first applied to the slots. The strips are then attached to the side edges of the cathode plates through the slots, and then affixed. Finally, a filler is used to fill the gap between the strips and the cathode plates. This method is cumbersome and cannot automate the insulation of the cathode plates. Furthermore, the strips are considered hazardous waste, and customers are unable to dispose of discarded strips. Summary of the Invention

[0004] The main purpose of the present invention is to provide a plate glue coating machine and a plate glue coating method to solve the problem of complex plate glue coating process in the related art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a plate coating machine is provided, comprising: a frame; a melt tank, which is arranged on the frame, and the melt tank has a first end and a second end in its length direction, and a first card slot extending along the height direction of the melt tank is provided on the end wall of the first end of the melt tank, and the first card slot is used to accommodate the plate; a heating device, which is arranged below the melt tank and heats the melt tank; a plurality of heat-conducting structures, which are arranged in the melt tank and spaced apart in the width direction of the melt tank, and the interval between two adjacent heat-conducting structures forms an accommodating space for accommodating the plate.

[0006] Furthermore, the heat conducting structure includes a heat conducting plate, and the heat conducting plate extends in the length direction of the melt tank.

[0007] Furthermore, a plurality of protrusion structures are provided at the bottom of the heat conducting plate and are spaced apart along the length direction of the melt tank, and a flow gap is formed between two adjacent protrusion structures.

[0008] Furthermore, the melt tank is fixedly connected to the frame, and the plate coating machine also includes: an elastic support structure, which is arranged between the frame and the heating device, and the heating device abuts and cooperates with the melt tank under the action of the elastic restoring force of the elastic support structure.

[0009] Furthermore, the plate glue coating machine also includes: a lifting device, including a clamping jaw and a lifting device connected to the clamping jaw, the clamping jaw is used to clamp the plate, and the lifting device is arranged on the frame to drive the clamping jaw to move in the vertical direction.

[0010] Furthermore, the frame includes a vertical frame, a horizontal beam arranged on the top of the vertical frame, and a bottom frame located below the horizontal beam. The melt tank and the heating device are arranged on the bottom frame. The lifting device includes a fixed pulley arranged on the horizontal beam, a winch arranged on the vertical frame, and a lifting rope wound on the winch and connected to the fixed pulley. The free end of the lifting rope is connected to the clamp.

[0011] Furthermore, the plate coating machine also includes: a lifting structure, which is arranged on the frame and located outside the first end of the melt tank, the lifting structure includes a driving device arranged on the frame and a clamping plate arranged on the driving device, the clamping plate includes a clamping part and a stop part located below the clamping part, and a second clamping slot for clamping the plate is provided on the clamping part, the clamping plate contacts and cooperates with the end wall of the first end of the melt tank, the clamping plate has a coating position for contacting the plate and the colloid in the melt tank and a separation position for separating the plate and the colloid, when the clamping plate is at the coating position, the second clamping slot is arranged opposite to the first clamping slot, and when the clamping plate is at the separation position, the stop part is arranged opposite to the first clamping slot.

[0012] Furthermore, the plate glue coating machine also includes a guide sleeve arranged on the end wall of the first end of the melt tank, the guide sleeve has a guide hole extending in the vertical direction, the guide hole is connected to the first card slot, the clamping plate is arranged in the guide hole and can move in the guide hole, and the guide sleeve is also provided with an avoidance hole that is connected to the guide hole and avoids the plate.

[0013] The present invention also provides a method for coating a plate with glue, which adopts the above-mentioned plate coating machine. The method for coating a plate with glue includes: adding hot melt glue into a melt glue tank; heating the melt glue tank by a heating device and melting the hot melt glue; extending the first side of the plate into the melt glue tank so that the first side of the plate contacts the melted hot melt glue; lifting the plate to separate the plate from the melted hot melt glue, and waiting for a predetermined time until the hot melt glue on the first side of the plate solidifies; extending the second side of the plate into the melt glue tank so that the second side of the plate contacts the melted hot melt glue; lifting the plate to separate the plate from the melted hot melt glue, and waiting for a predetermined time until the hot melt glue on the second side of the plate solidifies.

[0014] Furthermore, the setting temperature of the heating device is between 270°C and 330°C, and the melting temperature of the hot melt adhesive is between 170°C and 190°C.

[0015] According to the technical solution of the present invention, the plate coating machine includes a melt tank, wherein a first slot extending in the height direction of the melt tank is provided on the end wall of the first end of the melt tank. A heating device is also provided at the bottom of the melt tank. When the plate needs to be coated with glue, solid insulating glue can be first placed in the melt tank. After being heated by the heating device, the solid insulating glue melts into molten insulating glue. The side edge of the plate is then inserted into the first slot, so that the side edge of the plate extends below the glue surface of the insulating glue, thereby allowing the insulating glue to adhere to the side edge of the plate. The plate is then taken out of the melt tank, separated from the glue surface, and the insulating glue quickly becomes solid and adheres to the side edge of the plate, thereby forming an insulating layer. Similarly, the same operation is performed on the other side edge of the plate, so that both edges of the plate are coated with insulating glue. This embodiment uses a new plate glue coating machine to change the way the plates are insulated. Compared with the method mentioned in the background art, the operation steps are simpler, which helps improve the efficiency of the plate insulation process. It also eliminates the need for users to subsequently handle the insulation strips, improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 FIG. 1 shows a schematic diagram of the three-dimensional structure of an embodiment of a plate glue coating machine according to the present invention. Figure 1 It shows a schematic diagram of the structure when the plate is plugged into the plate glue coating machine;

[0018] Figure 2 Shown Figure 1 A schematic diagram of the three-dimensional structure of a partial structure of a plate coating machine, wherein: Figure 2 It shows a schematic diagram of the structure when the plate is plugged into the plate glue coating machine;

[0019] Figure 3 Shown Figure 2 A top view of a plate coating machine;

[0020] Figure 4 Shown Figure 3 AA-direction cross-sectional view of the plate coating machine.

[0021] The above drawings include the following reference numerals:

[0022] 10. Frame; 11. Vertical frame; 12. Crossbeam; 13. Base frame; 20. Melt tank; 21. First card slot; 22. End wall; 30. Plate; 40. Heating device; 50. Heat-conducting structure; 5. Accommodating space; 51. Heat-conducting plate; 511. Protruding structure; 52. Installation gap; 60. Elastic supporting structure; 61. Guide column; 62. Spring; 70. Hoisting device; 71. Clamping claw; 72. Lifting device; 721. Fixed pulley; 722. Winch; 723. Lifting rope; 80. Lifting structure; 81. Driving device; 82. Clamping plate; 821. Clamping part; 8211. Second card slot; 822. Stopper; 90. Guide sleeve; 91. Guide hole; 92. Avoidance hole. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorized specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0026] like Figures 1 to 4As shown, the plate coating machine of this embodiment includes: a frame 10, a melt tank 20, a heating device 40, and a plurality of heat-conducting structures 50. The melt tank 20 is disposed on the frame 10 and has a first end and a second end along its length. A first retaining groove 21 extending along the height of the melt tank 20 is provided on the end wall 22 of the first end of the melt tank 20. The first retaining groove 21 is used to accommodate the plate 30. The heating device 40 is disposed below the melt tank 20 and heats the melt tank 20. The plurality of heat-conducting structures 50 are disposed within the melt tank 20 and spaced apart along the width of the melt tank 20. The space between two adjacent heat-conducting structures 50 forms an accommodating space 5 for accommodating the plate 30.

[0027] Using the technical solution of this embodiment, the plate coating machine includes a melt tank 20. A first retaining groove 21 extending along the height of the melt tank 20 is provided on the end wall 22 at the first end of the melt tank 20. A heating device 40 is also provided at the bottom of the melt tank 20. When coating the plate 30 with glue, solid insulating glue is first placed into the melt tank 20. After being heated by the heating device 40, the solid insulating glue melts into molten insulating glue. The side edge of the plate is then inserted into the first retaining groove 21, extending below the adhesive surface of the insulating glue, thereby bonding the insulating glue to the side edge of the plate 30. The plate 30 is then removed from the melt tank 20, freeing it from the adhesive surface. The insulating glue quickly solidifies and bonds to the side edge of the plate 30, forming an insulating layer. Similarly, the same process is repeated for the other side edge of the plate 30, so that both edges of the plate 30 are coated with insulating glue. This embodiment uses a new plate glue coating machine to change the method of insulating the plate 30. Compared with the method mentioned in the background art, the operation steps are simpler, which helps to improve the efficiency of insulating the plate 30. It also eliminates the need for users to subsequently handle the insulating edge strips, improving the customer experience.

[0028] It should be noted that a receiving space 5 is formed between the multiple heat-conducting structures 50. After the electrode 30 is extended into the melt tank 20, it will be located in the receiving space 5. This arrangement increases the heating surface area through the heat-conducting structure 50, thereby further facilitating the melting of the thermal adhesive.

[0029] like Figures 1 to 4 As shown, in this embodiment, the heat conducting structure 50 includes a heat conducting plate 51 extending along the length of the melt tank 20. In the above structure, the heat conducting plate 51 has a simple structure and is easy to manufacture. It should be noted that the heat conducting plate 51 can be disposed on the bottom wall or the side wall of the melt tank 20.

[0030] like Figures 1 to 4As shown, in this embodiment, the bottom of the heat conducting plate 51 is provided with a plurality of raised structures 511 spaced apart along the length of the melt tank 20, with a flow gap formed between adjacent raised structures 511. In this structure, the melted insulating adhesive can flow into or out of the accommodation space 5 through the flow gap, thereby increasing the fluidity of the insulating adhesive in the melt tank 20, allowing the side edges of the electrode plate 30 to be fully coated with the insulating adhesive, thereby improving the insulation performance of the electrode plate 30.

[0031] like Figures 1 to 4 As shown, in this embodiment, each heat-conducting structure 50 includes multiple heat-conducting plates 51 arranged adjacent to each other along the length of the melt tank 20, with a mounting gap 52 defined between adjacent heat-conducting plates 51. In this structure, the mounting gap 52 provides a buffer when the heat-conducting plates 51 expand, preventing the two heat-conducting plates 51 from squeezing and deforming due to expansion.

[0032] It should be noted that the width of the installation gap 52 is between 0.2 mm and 5 mm.

[0033] like Figures 1 to 4 As shown, in this embodiment, the melt tank 20 is fixedly connected to the frame 10, and the plate coating machine further includes: an elastic support structure 60, which is arranged between the frame 10 and the heating device 40. The heating device 40 is in abutment with the melt tank 20 under the action of the elastic restoring force of the elastic support structure 60. In the above structure, the heating device 40 can be in abutment with the melt tank 20 under the action of the elastic restoring force of the elastic support structure 60, so that the heating device 40 and the melt tank 20 can be in close contact. Therefore, when a deformation gap or installation gap is generated between the melt tank 20 and the heating device 40, the heating device 40 and the melt tank 20 can still be in close contact, thereby ensuring the heat transfer efficiency of the melt tank 20.

[0034] Specifically, if Figures 1 to 4 As shown, in this embodiment, the heating device 40 extends along the length of the melt tank 20. The plurality of elastic support structures 60 are spaced apart along the length of the melt tank 20. The elastic support structures 60 include a guide post 61 and a spring 62 sleeved around the guide post 61. The guide post 61 is disposed at the bottom of the frame 10 and / or the heating device 40. The first end of the spring 62 abuts the frame 10, and the other end of the spring 62 abuts the heating device 40. In the above structure, the heating device 40 extends along the length of the melt tank 20, allowing all parts of the melt tank 20 to be heated evenly.

[0035] like Figures 1 to 4As shown, in this embodiment, the plate glue coating machine also includes a lifting device 70, which includes a clamping claw 71 and a lifting device 72 driven by the clamping claw 71. The clamping claw 71 is used to clamp the plate 30, and the lifting device 72 is arranged on the frame 10 to drive the clamping claw 71 to move in the vertical direction. In the above structure, the lifting device 70 can clamp the plate 30. When the plate 30 needs to be coated with glue, the lifting device 72 can be driven to move downward. When the glue is coated on one side of the plate 30, the plate 30 can be lifted by driving the lifting device 72, so that the plate 30 is separated from the glue surface, and the insulating glue is allowed to become solid and adhere to the plate 30. At this time, the plate 30 can be removed, the side that has been coated with glue can be clamped, and the other side can be placed in the melt tank 20 in the same way for gluing.

[0036] like Figures 1 to 4 As shown, in this embodiment, the frame 10 includes a vertical frame 11, a horizontal beam 12 disposed on the top of the vertical frame 11, and a bottom frame 13 located below the horizontal beam 12. The melt tank 20 and the heating device 40 are disposed on the bottom frame 13. The lifting device 72 includes a fixed pulley 721 disposed on the horizontal beam 12, a winch 722 disposed on the vertical frame 11, and a suspension rope 723 wound around the winch 722 and connected to the fixed pulley 721. The free end of the suspension rope 723 is connected to the clamp 71. In the above structure, the lifting device 72 includes a fixed pulley 721 disposed on the horizontal beam 12, a winch 722 disposed on the vertical frame 11, and a suspension rope 723 wound around the winch 722 and connected to the fixed pulley 721. The operator can control the height of the electrode plate 30 by rotating the winch 722. The above structure is simple, has low production cost, and can drive the electrode plate 30 to move in the vertical direction.

[0037] like Figures 1 to 4As shown, in this embodiment, the plate coating machine also includes a lifting structure 80, which is arranged on the frame 10 and located outside the first end of the melt tank 20. The lifting structure 80 includes a driving device 81 arranged on the frame 10 and a clamping plate 82 arranged on the driving device 81. The clamping plate 82 includes a clamping portion 821 and a stopper 822 located below the clamping portion 821. The clamping portion 821 is provided with a second clamping groove 8211 for clamping the plate 30. The clamping plate 82 contacts and cooperates with the end wall 22 of the first end of the melt tank 20. The clamping plate 82 has a coating position for contacting the plate 30 with the colloid in the melt tank 20 and a separation position for separating the plate 30 from the colloid. When the clamping plate 82 is in the coating position, the second clamping groove 8211 is arranged opposite to the first clamping groove 21. When the clamping plate 82 is in the separation position, the stopper 822 is arranged opposite to the first clamping groove 21. In the above structure, the lifting structure 80 includes a driving device 81 and a clamping plate 82 provided on the driving device 81. The clamping plate 82 can move between a gluing position and a separation position under the drive of the driving device 81. The clamping plate 82 includes a clamping portion 821 and a stopper 822 located below the clamping portion 821. The clamping portion 821 is provided with a second slot 8211. When the clamping plate 82 is in the gluing position, the second slot 8211 is arranged opposite to the first slot 21. At this time, the side edge of the electrode plate 30 can be immersed in the insulating glue, thereby achieving the gluing operation of the side edge of the electrode plate 30. When the clamping plate 82 is in the separation position, the clamping plate 82 moves upward, driving the electrode plate 30 to separate from the insulating glue. At the same time, the stopper 822 of the clamping plate 82 can cover the first slot 21, so that after the electrode plate 30 is moved out of the first slot 21, the insulating glue leaks out from the first slot 21, solving the problem of easy glue leakage in the electrode glue coating machine.

[0038] like Figures 1 to 4 As shown, in this embodiment, the plate glue coating machine further includes a guide sleeve 90 disposed on the end wall 22 of the first end of the melt tank 20. The guide sleeve 90 has a guide hole 91 extending in the vertical direction. The guide hole 91 is connected to the first clamping slot 21. The clamping plate 82 is disposed in the guide hole 91 and can move within the guide hole 91. The guide sleeve 90 is also provided with a clearance hole 92 that is connected to the guide hole 91 and avoids the plate 30. In the above structure, the guide sleeve 90 can guide the movement of the clamping plate 82, and the clearance hole 92 can also effectively avoid the plate 30, allowing the plate 30 to move smoothly.

[0039] The present invention also provides a method for coating a plate with glue. The coating method uses the above-mentioned plate coating machine. The coating method comprises:

[0040] Add hot melt adhesive into the adhesive tank 20;

[0041] The heating device 40 heats the melt tank 20 and melts the hot melt adhesive;

[0042] Insert the first side of the electrode plate into the hot melt tank 20 so that the first side of the electrode plate contacts the melted hot melt adhesive;

[0043] Lifting the plate to separate the plate from the melted hot melt adhesive, and waiting for a predetermined time until the hot melt adhesive on the first side of the plate solidifies;

[0044] Insert the second side of the electrode plate into the hot melt tank 20 so that the second side of the electrode plate contacts the melted hot melt adhesive;

[0045] Lift the plate to separate it from the melted hot melt adhesive, and wait for a predetermined time until the hot melt adhesive on the second side of the plate solidifies.

[0046] Using the above-mentioned method for coating the electrode plate, the hot melt adhesive is a solid particle structure before melting. The hot melt adhesive is first evenly spread in the melt tank 20 so that when the hot melt adhesive melts, a uniform adhesive layer can be formed in the melt tank 20. The first side of the electrode plate is then extended into the melt tank 20 so that the first side of the electrode plate contacts the melted hot melt adhesive. The first side of the electrode plate is then fully coated with the hot melt adhesive. The electrode plate is then lifted up to separate the electrode plate from the melted hot melt adhesive. The electrode plate is then allowed to wait for a predetermined period of time until the hot melt adhesive on the first side of the electrode plate solidifies. At this point, the coating of the first side of the electrode plate is complete. The second side of the electrode plate is then extended into the melt tank 20 so that the second side of the electrode plate contacts the melted hot melt adhesive. The first side of the electrode plate is then fully coated with the hot melt adhesive. The electrode plate is then lifted up to separate the electrode plate from the melted hot melt adhesive. The electrode plate is then allowed to wait for a predetermined period of time until the hot melt adhesive on the second side of the electrode plate solidifies. At this point, the coating of the second side of the electrode plate is also complete. Compared with the existing technology, this coating method is simple to operate and has higher coating efficiency.

[0047] It should be noted that the setting temperature of the heating device 40 is between 270°C and 330°C, and the melting temperature of the hot melt adhesive is between 170°C and 190°C. It should also be noted that in this embodiment, the electrode plate is lifted by the lifting structure and the hoisting device 70. When applying the adhesive, the electrode plate needs to be soaked to 10 mm below the adhesive surface of the melted hot melt adhesive. When lifting the electrode plate, the lifting structure 80 can first lift the electrode plate upward and remove it to 20 mm from the adhesive surface. Then, the hoisting device 70 continues to lift the electrode plate to 30 mm from the adhesive surface.

[0048] After applying glue to the first side of the plate, the operator flips the plate 180 degrees and applies glue to the second side. After both sides of the plate are coated, it needs to be left at room temperature for 24 hours before use.

[0049] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0050] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0051] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0052] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A plate glue coating machine, characterized in that: include: Rack (10); A melt tank (20) is provided on the frame (10), the melt tank (20) having a first end and a second end in its length direction, a first clamping groove (21) extending in the height direction of the melt tank (20) is provided on an end wall (22) of the first end of the melt tank (20), and the first clamping groove (21) is used to accommodate the electrode plate (30); A heating device (40) is disposed below the melt tank (20) and heats the melt tank (20); A plurality of heat-conducting structures (50) are arranged in the melt tank (20) and spaced apart in the width direction of the melt tank (20), and the space between two adjacent heat-conducting structures (50) forms an accommodating space (5) for accommodating the electrode plate (30); A lifting structure (80) is provided on the frame (10) and is located outside the first end of the melt tank (20), the lifting structure (80) includes a driving device (81) provided on the frame (10) and a clamping plate (82) provided on the driving device (81), the clamping plate (82) includes a clamping portion (821) and a stopper portion (822) located below the clamping portion (821), the clamping portion (821) is provided with a second clamping slot (8211) for clamping the electrode plate (30), and the clamping plate (82) is in contact with the end wall (22) of the first end of the melt tank (20); The heat-conducting structure (50) comprises a heat-conducting plate (51), and the heat-conducting plate (51) extends in the length direction of the melt tank (20); The bottom of the heat conducting plate (51) is provided with a plurality of protrusion structures (511) spaced apart along the length direction of the melt tank (20), with a flow gap formed between two adjacent protrusion structures (511). The heat conducting plate (51) is provided on the bottom wall of the melt tank (20).

2. The plate glue coating machine according to claim 1, characterized in that: The melt tank (20) is fixedly connected to the frame (10), and the plate glue coating machine further comprises: An elastic support structure (60) is provided between the frame (10) and the heating device (40), and the heating device (40) is in abutment with the melt tank (20) under the action of the elastic restoring force of the elastic support structure (60).

3. The plate glue coating machine according to claim 1, characterized in that: The plate glue coating machine also includes: The lifting device (70) comprises a clamp (71) and a lifting device (72) drivingly connected to the clamp (71), wherein the clamp (71) is used to clamp the pole plate (30), and the lifting device (72) is arranged on the frame (10) to drive the clamp (71) to move in a vertical direction.

4. The plate glue coating machine according to claim 3, characterized in that: The frame (10) includes a vertical frame (11), a crossbeam (12) arranged on the top of the vertical frame (11), and a bottom frame (13) located below the crossbeam (12); the melt tank (20) and the heating device (40) are arranged on the bottom frame (13); the lifting device (72) includes a fixed pulley (721) arranged on the crossbeam (12), a winch (722) arranged on the vertical frame (11), and a suspension rope (723) wound around the winch (722) and connected to the fixed pulley (721); the free end of the suspension rope (723) is connected to the clamp (71).

5. The plate glue coating machine according to claim 1, characterized in that: The plate glue coating machine also includes: The clamping plate (82) has a coating position for bringing the electrode (30) into contact with the colloid in the melt tank (20) and a separation position for separating the electrode (30) from the colloid. When the clamping plate (82) is located at the coating position, the second card slot (8211) is arranged opposite to the first card slot (21). When the clamping plate (82) is located at the separation position, the stopper (822) is arranged opposite to the first card slot (21).

6. The plate glue coating machine according to claim 5, characterized in that: The plate glue coating machine further comprises a guide sleeve (90) arranged on the end wall (22) of the first end of the melt tank (20), the guide sleeve (90) having a guide hole (91) extending in a vertical direction, the guide hole (91) being connected to the first clamping slot (21), the clamping plate (82) being arranged in the guide hole (91) and being movable in the guide hole (91), and the guide sleeve (90) also being provided with an avoidance hole (92) being connected to the guide hole (91) and avoiding the plate (30).

7. A method for coating a plate, characterized in that: The gluing method adopts the plate gluing machine according to any one of claims 1 to 6, and the plate gluing method comprises: Adding hot melt adhesive into the adhesive melt tank (20), heating the adhesive melt tank (20) by a heating device (40), and melting the hot melt adhesive; Extending the first side of the electrode plate into the hot melt adhesive tank (20) so that the first side of the electrode plate contacts the melted hot melt adhesive; Lifting the electrode plate to separate the electrode plate from the melted hot melt adhesive, and waiting for a predetermined time until the hot melt adhesive on the first side of the electrode plate solidifies; Extending the second side of the electrode plate into the hot melt adhesive tank (20) so that the second side of the electrode plate contacts the melted hot melt adhesive; Lift the electrode plate to separate the electrode plate from the melted hot melt adhesive, and wait for the predetermined time until the hot melt adhesive on the second side of the electrode plate solidifies.

8. The method for coating the plate according to claim 7, characterized in that: The heating temperature of the heating device (40) is between 270°C and 330°C, and the melting temperature of the hot melt adhesive is between 170°C and 190°C.

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