Drying device and pole piece manufacturing production line

Abstract

The utility model relates to a drying device and a pole piece manufacturing production line. According to the drying device, a drying channel extending in the preset direction is formed in a drying body; the material belt winding assembly is arranged on the downstream portion of the drying body in the preset direction. The material belt winding assembly is used for driving a material belt to be conveyed and winding the material belt after the material belt is dried through the drying channel. The leading tape unit comprises a leading tape, a first driving leading tape assembly and a second driving leading tape assembly, the first driving leading tape assembly and the second driving leading tape assembly are arranged on the upstream and the downstream of the drying body in the preset direction respectively, and the first driving leading tape assembly and the second driving leading tape assembly are matched and used for driving the leading tape to be conveyed and pass through the drying channel; and the belt clamping assembly is arranged on the leading belt, is controlled by the leading belt unit and is used for clamping the broken belt when the material belt in the drying channel is broken and driving the broken belt to move to an external connecting belt of the drying channel in the preset direction. According to the drying device and the pole piece manufacturing production line, waste of manpower and material resources is reduced, and the productivity and the production efficiency are improved.

Description

Technical Field

[0001] The present application relates to the field of electrode manufacturing technology, and specifically to a drying device and an electrode manufacturing production line. Background Art

[0002] During the production process of electrodes, the electrodes often crack due to wrinkling of the electrodes, damage to the edges of the electrodes, uneven coating density, or the electrodes being in the oven for too long or the oven temperature being too high. This damages the strength of the electrodes and eventually causes the electrodes to break inside the oven under a certain pulling tension.

[0003] The current solution is to turn off the oven's heating components, wait for the oven to cool to room temperature, and then reconnect the broken tape. After reconnecting, the oven is reopened and re-coated once the oven reaches operating temperature. This not only wastes significant manpower and resources, but also typically results in at least two hours of lost production capacity for each tape break, severely impacting production schedules. Utility Model Content

[0004] Based on this, it is necessary to provide a drying device and electrode manufacturing production line that can reduce the waste of manpower and material resources and improve production capacity and production efficiency to address the above problems.

[0005] 18. The drying device of claim 17, wherein the drying device comprises: a drying main body, which comprises a drying channel extending along a preset direction; a material belt winding assembly arranged downstream of the drying main body along the preset direction, and the material belt winding assembly is used to drive the material belt to be transported and wound after passing through the drying channel for drying; a leading belt unit, comprising a leading belt, a first active leading belt assembly and a second active leading belt assembly, the first active leading belt assembly and the second active leading belt assembly being respectively arranged upstream and downstream of the drying main body along the preset direction, and the first active leading belt assembly cooperates with the second active leading belt assembly and is used to drive the leading belt to be transported and pass through the drying channel; and a clamping belt assembly is arranged on the leading belt, and the clamping belt assembly is controlled by the leading belt unit and is used to clamp the broken belt when the material belt in the drying channel is broken and drive the broken belt to move along the preset direction to the external belt of the drying channel.

[0006] In some embodiments, the first driving lead belt assembly includes a first driving lead belt roller and a first driving lead belt gear, and the first driving lead belt gear is sleeved on and fixed to the first driving lead belt roller; the second driving lead belt assembly includes a second driving lead belt roller and a second driving lead belt gear, and the second driving lead belt gear is sleeved on and fixed to the second driving lead belt roller, and opposite ends of the lead belt are respectively engaged with the first driving lead belt gear and the second driving lead belt gear.

[0007] In some embodiments, there are at least two first driving lead gears and are arranged at intervals along the axial direction of the first driving lead roller, the lead belts correspond to the first driving lead rollers one-to-one, and one end of the lead belts is engaged with the corresponding first driving lead gear; there are at least two second driving lead gears and are arranged at intervals along the axial direction of the second driving lead roller, the lead belts correspond to the second driving lead rollers one-to-one, and the other end of the lead belts is engaged with the corresponding second driving lead gear, and the entrainer assembly is connected to all the lead belts.

[0008] In some embodiments, the first driving guide roller includes a first driving guide roller portion and a first driving guide shaft portion provided at opposite ends of the first driving guide roller portion, the first driving guide gear corresponds to the first driving guide shaft portion in a one-to-one manner, and the first driving guide gear is sleeved and fixed on the corresponding first driving guide shaft portion, the outer diameter of the first driving guide roller portion is the same as the outer diameter of the first driving guide gear, and the axial length of the first driving guide roller portion is greater than the axial length of the first driving guide shaft portion; the second driving guide roller includes a second driving guide roller portion and a second driving guide shaft portion provided at opposite ends of the second driving guide roller portion, the second driving guide gear corresponds to the second driving guide shaft portion in a one-to-one manner, and the second driving guide gear is sleeved and fixed on the corresponding second driving guide shaft portion, the outer diameter of the second driving guide roller portion is the same as the outer diameter of the second driving guide gear, and the axial length of the second driving guide roller portion is greater than the axial length of the second driving guide shaft portion.

[0009] In some embodiments, there are at least two first driving lead gears and they are spaced apart along the axial direction of the first driving lead roller, and one end of the lead belt is engaged with all of the first driving lead gears; there are at least two second driving lead gears and they are spaced apart along the axial direction of the second driving lead roller, and the other end of the lead belt is engaged with all of the second driving lead gears.

[0010] In some embodiments, the leader unit further includes a plurality of groups of driven leader assemblies, all of which are arranged on the bottom side of the leader along the thickness direction of the leader and spaced apart along the extension direction of the leader, and all groups of the driven leader assemblies cooperate and are used to guide the transmission of the leader.

[0011] In some embodiments, the entrainment assembly includes an entrainment motor, a mounting base, a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are mounted on the mounting base, the entrainment motor is transmission-connected to the first clamping plate and / or the second clamping plate and is used to drive the first clamping plate and the second clamping plate to clamp or loosen the broken belt.

[0012] In some embodiments, the leader belt is any one of a chain and a synchronous belt.

[0013] In some embodiments, the drying device also includes a plurality of air nozzles located in the drying channel and arranged on at least one side of the material belt along the thickness direction of the material belt. All the air nozzles located on the same side of the material belt are arranged at intervals along the preset direction and are used to blow hot air flow to the material belt.

[0014] A pole piece manufacturing production line comprises a drying device as described in any one of the above embodiments.

[0015] The above-mentioned drying device and electrode manufacturing production line are equipped with a lead unit and a clamping assembly. The lead unit can drive the clamping assembly to move to the broken belt position, and drive the broken belt to move outside the drying channel for splicing, thereby reducing the repeated opening and closing of the heating components of the drying device and the manual lead operation. In this process, there is no need to cool the drying channel, so there is no need to repeatedly open or close the door, which reduces the waste of manpower, material resources and energy, and improves production efficiency and capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a drying device in one embodiment of the present application;

[0017] Figure 2 for Figure 1 A schematic structural diagram of the first active belt assembly in the drying device shown;

[0018] Figure 3 for Figure 1 A schematic structural diagram of the second active guide belt assembly in the drying device shown;

[0019] Figure 4 for Figure 1 A front view of the entrainment assembly in the drying device is shown;

[0020] Figure 5 for Figure 4 Left side view of the entrainment assembly shown.

[0021] Figure Number:

[0022] 100, drying device; 200, material belt; 10, drying body; 11, drying channel; 20, material belt winding assembly; 21, material belt winding active roller; 22, material belt winding driven roller; 30, belt guide unit; 31, belt guide; 32, first active belt guide assembly; 321, first active belt guide roller; 3211, first active belt guide roller portion; 3212, first active belt guide shaft portion; 322, first active belt guide gear; 33 , second active lead belt assembly; 331, second active lead belt roller; 3311, second active lead belt roller portion; 3312, second active lead belt shaft portion; 332, second active lead belt gear; 40, entrainment assembly; 41, mounting seat; 42, first clamping plate; 43, second clamping plate; 50, air nozzle; 60, coating assembly; 61, coating roller; 62, coating head; 70, tensioning roller; 80, driven lead belt assembly; X, preset direction. DETAILED DESCRIPTION

[0023] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, 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, and therefore should not be understood as a limitation on the present application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0026] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0027] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0029] See also Figures 1 to 5The present application provides a drying device 100, which includes a drying body 10, a material tape unwinding assembly, a material tape rewinding assembly 20, a lead unit 30, a clamping assembly 40 and a heating assembly. The drying body 10 has a drying channel 11 extending along a preset direction X. The material tape unwinding assembly is arranged upstream of the drying body 10 along the preset direction X, and the material tape rewinding assembly 20 is arranged downstream of the drying body 10 along the preset direction X. The material tape unwinding assembly is used to unwind the material tape 200, and the material tape rewinding assembly 20 is used to drive the material tape 200 to be transported and rewound after drying through the drying channel 11. The lead unit 30 includes a leader belt 31, a first active leader belt assembly 32 and a second active leader belt assembly 33. The first active leader belt assembly 32 and the second active leader belt assembly 33 are respectively arranged upstream and downstream of the drying main body 10 along the preset direction X, and the first active leader belt assembly 32 cooperates with the second active leader belt assembly 33 and is used to drive the leader belt 31 to be transmitted and pass through the drying channel 11. The entrainment assembly 40 is arranged on the leader belt 31, and the entrainment assembly 40 is controlled by the leader belt unit 30 and is used to clamp the broken belt when the material belt 200 in the drying channel 11 is broken and drive the broken belt to move along the preset direction X to the external belt of the drying channel 11.

[0030] The drying body 10 primarily serves as a mounting and drying space, so it must be constructed from materials with excellent mechanical strength and high-temperature resistance. The drying body 10 has multiple heat dissipation vents spaced along a predetermined direction X. The drying body 10 also includes multiple doors, each corresponding to a heat dissipation vent and used to open and close the vents.

[0031] Specifically, the preset direction X is the length direction of the drying body 10 .

[0032] As an example, the material strip 200 may be a pole piece material strip or other forms of material strip 200, which may be specifically set according to requirements.

[0033] As an example, the material strip unwinding assembly includes a material strip unwinding roller, which is used to release the material strip 200. The material strip winding assembly 20 includes a material strip winding motor, a material strip winding active roller 21 and a material strip winding driven roller 22. The material strip winding active roller 21 and the material strip winding driven roller 22 are distributed on opposite sides of the material strip 200 along the thickness direction of the material strip 200. The material strip winding motor is transmission-connected to the material strip winding active roller 21 and is used to drive the material strip winding active roller 21 to rotate, thereby driving the material strip 200 to unwind, transmit and rewind.

[0034] Of course, the specific forms of the material tape unwinding assembly and the material tape winding assembly 20 are not limited to the above-mentioned structures. The material tape unwinding assembly and the material tape winding assembly 20 can also be in other forms. For example, the material tape unwinding assembly also includes a material tape unwinding motor, which is transmission-connected to the material tape unwinding roller. The material tape unwinding motor drives the material tape unwinding roller to rotate to release the material tape 200.

[0035] Specifically, the guide belt 31 is any one of a chain and a synchronous belt. Taking the guide belt 31 as a chain as an example, the chain has better mechanical properties and can effectively install and support the entrainment assembly 40 to facilitate the installation of the entrainment assembly 40.

[0036] The first active lead assembly 32 and the second active lead assembly 33 cooperate to provide driving force for the transmission of the lead belt 31. The entrainment assembly 40 is mounted on the lead belt 31 and is used to clamp or release a broken belt. When the entrainment assembly 40 fails to clamp the broken belt, the lead belt 31, under the action of the first active lead assembly 32 and the second active lead assembly 33, drives the entrainment assembly 40 in a predetermined direction X or a direction opposite to the predetermined direction X, so that the entrainment assembly 40 coincides with the broken belt position, thereby facilitating the subsequent clamping of the broken belt by the entrainment assembly 40. After the entrainment assembly 40 clamps the broken belt, the lead belt 31, under the action of the first active lead assembly 32 and the second active lead assembly 33, drives the entrainment assembly 40 in the predetermined direction X, so that the entrainment assembly 40 can pull the broken belt outside the drying duct 11 for splicing.

[0037] The heating component is used for heating to increase the temperature in the drying channel 11. The specific form of the heating component is not limited, for example, the heating component can be a resistance wire, an electric heating tube, an electric heating rod, etc.

[0038] During actual operation, the heating assembly is activated to create a high-temperature environment within the drying duct 11. The unwinding assembly and the rewinding assembly 20 cooperate to drive the material 200 through the drying duct 11 to dry the material 200. If the material 200 breaks, the material 200 will split into two sections, one connected to the unwinding assembly and the other connected to the rewinding assembly 20. At this time, the rewinding assembly 20 will continue to rewind the material 200 and drive the remaining section of the material 200 connected to the rewinding assembly 20 along the predetermined direction X to the outside of the drying duct 11. At the same time, the first active lead assembly 32 and the second active lead assembly 33 are started and drive the lead belt 31 to move along the preset direction X or in the direction opposite to the preset direction X, so as to drive the entrainment assembly 40 to move to the tape breaking position. Then, the entrainment assembly 40 clamps a section of the material tape 200 connected to the material tape unwinding assembly and drives the material tape 200 to move along the preset direction X to the outside of the drying channel 11. Finally, the tape is spliced ​​outside the drying channel 11 manually or by a splicing device.

[0039] The current common solution to tape breakage is to turn off the heating component within the drying body 10, wait for the drying channel 11 to cool to room temperature, and then re-splice the tape at the broken location within the drying body 10. After the tape is re-splice, the heating component is turned on again, and when the temperature in the drying channel 11 reaches the operating temperature, re-test coating can be carried out. During this process, the heating component must be manually turned off first, and employees must enter the drying channel 11 to open the doors of the drying body 10 one by one and cool the drying channel 11, resulting in a significant waste of energy. Moreover, before re-splice, the tape must be re-rewound. At least two employees must enter the drying channel 11 and manually pull the tape 200 along both sides of its width, leading it out of the drying channel 11 in a predetermined direction X. The tape can then be re-splice outside the drying channel 11, which is time-consuming and labor-intensive. Furthermore, after the tape is re-splice, the doors must be closed and reheated to the operating temperature before test coating can begin, further wasting energy. It can be seen that the current splicing method not only wastes a lot of manpower, material resources and energy, but also seriously affects the production progress and has low production capacity.

[0040] In the present application, by setting up a leading unit 30 and a belt entrainment component 40, the leading unit 30 can drive the belt entrainment component 40 to move and position to the broken belt position, and drive the broken belt to move to the outside of the drying channel 11 for splicing, thereby reducing the repeated opening and closing of the heating component and the manual operation of the leading belt 31. In this process, there is no need to cool the drying channel 11, so there is no need to repeatedly open or close the door body, which reduces the waste of manpower, material resources and energy, and improves production efficiency and capacity.

[0041] It is worth mentioning that in the present application, a detection component can be set to automatically detect the broken belt position, and a control component is also provided in the drying device 100. The control component is electrically connected to at least one of the first active lead belt component 32 and the second active lead belt component 33, the detection component and the entrainment component 40. After the detection component detects the broken belt position, it feeds back to the control component, and then the control component controls the first guide component and / or the second active lead belt component 33 to drive the lead belt 31 to guide the entrainment component 40 to drive the entrainment component 40 to move to the broken belt position, and then the control component controls the entrainment component 40 to clamp the broken belt and pull the broken belt along the preset direction X to the outside of the drying channel 11. Alternatively, the drying body 10 has a plurality of visual windows spaced along a preset direction X. After observing a broken belt through the visual windows, the employee presses a first button that interacts with the control component and sends a broken belt instruction to the control component, causing the control component to control the first active lead component 32 and / or the second active lead component 33 to drive the lead belt 31 to drive the entrainment component 40 to the broken belt position. The employee then inserts the broken belt into the clamping component through the heat dissipation port facing the broken belt position so that the clamping component can subsequently clamp the broken belt. The employee then presses a second button that interacts with the control component and sends a lead belt 31 instruction to the control component, causing the control component to control the entrainment component 40 to clamp the broken belt and pull the broken belt along the preset direction X to the outside of the drying channel 11.

[0042] Please refer again Figures 1 to 3 In some optional embodiments, the first active lead belt assembly 32 includes a first active lead belt roller 321 and a first active lead belt gear 322, with the first active lead belt gear 322 being mounted on and fixed to the first active lead belt roller 321. The second active lead belt assembly 33 includes a second active lead belt roller 331 and a second active lead belt gear 332, with the second active lead belt gear 332 being mounted on and fixed to the second active lead belt roller 331. The opposite ends of the leader belt 31 are respectively engaged with the first active lead belt gear 322 and the second active lead belt gear 332. In addition, at least one of the first active lead belt assembly 32 and the second active lead belt assembly 33 also includes a lead belt motor, and the lead belt motor in the same active lead belt assembly is in transmission connection with the active lead belt roller. For ease of description, the following embodiments are described using the example of the second active lead belt assembly 33 including the lead belt motor.

[0043] When the lead motor rotates forward, the lead motor drives the second active lead roller 331 to drive the second active lead gear 332 to rotate forward, thereby driving the first active lead gear 322 and the first active lead roller 321 to rotate forward, thereby realizing the transmission of the lead belt 31 along the preset direction X; when the lead motor rotates reversely, the lead motor drives the second active lead roller 331 to drive the second active lead gear 332 to rotate reversely, thereby driving the first active lead gear 322 and the first active lead roller 321 to rotate reversely, thereby realizing the transmission of the lead belt 31 along the direction opposite to the preset direction X.

[0044] By providing the first active lead assembly 32 including the first active lead roller 321 and the first active lead gear 322, and the second active lead assembly 33 including the lead motor, the second active lead roller 331 and the second active lead gear 332, the lead belt 31 can be stably pulled to move, ensuring that the entrainment assembly 40 can move to the broken belt position and clamp the broken belt.

[0045] Furthermore, in some optional embodiments, there are at least two first driving lead gears 322 and are arranged at intervals along the axial direction of the first driving lead roller 321. The lead belt 31 corresponds to the first driving lead roller 321 one-to-one, and one end of the lead belt 31 is engaged with the corresponding first driving lead gear 322; there are at least two second driving lead gears 332 and are arranged at intervals along the axial direction of the second driving lead roller 331. The lead belt 31 corresponds to the second driving lead roller 331 one-to-one, and the other end of the lead belt 31 is engaged with the corresponding second driving lead gear 332, and the entrainment assembly 40 is connected to all the lead belts 31.

[0046] Generally speaking, the axial direction of the first driving lead roller 321 , the axial direction of the second driving lead roller 331 and the width direction of the drying body 10 are arranged in parallel.

[0047] The arrangement of the plurality of first driving lead gears 322 , the plurality of lead belts 31 and the plurality of second driving lead gears 332 can improve the stability of the installation and movement of the entrainment unit, so that the entrainment unit can stably and reliably pull the broken belt.

[0048] In some optional embodiments, the first active guide roller 321 includes a first active guide roller portion 3311 and a first active guide shaft portion 3212 arranged at opposite ends of the first active guide roller portion 3311, the first active guide gear 322 corresponds to the first active guide shaft portion 3212 one-to-one, and the first active guide gear 322 is sleeved and fixed on the corresponding first active guide shaft portion 3212, the outer diameter of the first active guide roller portion 3311 is the same as the outer diameter of the first active guide gear 322, and the axial length of the first active guide roller portion 3311 is greater than the axial length of the first active guide shaft portion 3212. The second lead roller 331 includes a second lead roller portion 3311 and second lead shaft portions 3312 disposed at opposite ends of the second lead roller portion 3311. The second lead gears 332 correspond one-to-one with the second lead shaft portions 3312, and the second lead gears 332 are sleeved and fixed onto the corresponding second lead shaft portions 3312. The outer diameter of the second lead roller portion 3311 is the same as that of the second lead gear 332, and the axial length of the second lead roller portion 3311 is greater than the axial length of the second lead shaft portion 3312. With this design, the first lead roller portion 3311 can support and tension the lead belt 31 between the two first lead shaft portions 3212, and the second lead roller portion 3311 can support and tension the lead belt 31 between the two second lead shaft portions 3312, thereby ensuring reliable transmission of the lead belt 31.

[0049] In some optional embodiments, there are at least two first driving lead gears 322 spaced apart along the axial direction of the first driving lead roller 321, with one end of the leader belt 31 meshing with all of the first driving lead gears 322. There are at least two second driving lead gears 332 spaced apart along the axial direction of the second driving lead roller 331, with the other end of the leader belt 31 meshing with all of the second driving lead gears 332. This design also helps improve the stability of the entrainment unit's installation and movement, allowing the entrainment unit to stably and reliably pull the broken belt.

[0050] In some optional embodiments, the leader unit 30 further includes a plurality of groups of driven leader assemblies 80, all of which are arranged on the bottom side of the leader 31 along its thickness direction and are spaced apart along the extension direction of the leader 31, and all groups of driven leader assemblies 80 cooperate and are used to guide the transmission of the leader 31.

[0051] The structure of the driven belt assembly 80 differs from the first and second active belt assemblies 32 and 33 in that the driven belt assembly 80 does not have a belt motor. Therefore, the specific structure of the driven belt assembly 80 can be referred to that of the first and second active belt assemblies 32 and 33, and will not be further described here.

[0052] By providing a plurality of driven leader belt assemblies 80 , the plurality of driven leader belt assemblies 80 are arranged along the extension direction of the leader belt 31 and support and guide multiple positions of the leader belt 31 , thereby improving the transmission stability of the leader belt 31 .

[0053] Please refer again Figure 1 , and also see Figure 4 and Figure 5 In some optional embodiments, the entrainment assembly 40 includes an entrainment motor, a mounting base 41, a first clamping plate 42 and a second clamping plate 43. The first clamping plate 42 and the second clamping plate 43 are installed on the mounting base 41. The entrainment motor is transmission-connected to the first clamping plate 42 and / or the second clamping plate 43 and is used to drive the first clamping plate 42 and the second clamping plate 43 to clamp or loosen the broken belt.

[0054] For example, the entrainment motor is in transmission connection with the first clamping plate 42, and the entrainment motor drives the first clamping plate 42 to move toward or away from the second clamping plate 43. When the first clamping plate 42 moves toward the second clamping plate 43, the first clamping plate 42 and the second clamping plate 43 clamp the broken belt. When the entrainment motor drives the first clamping plate 42 to move away from the second clamping plate 43, the first clamping plate 42 and the second clamping plate 43 release the broken belt. For another example, there are two entrainment motors, and they are respectively in transmission connection with the first clamping plate 42 and the second clamping plate 43. The two entrainment motors are started synchronously and drive the first clamping plate 42 and the second clamping plate 43 to move closer to or away from each other. When the first clamping plate 42 and the second clamping plate 43 move closer to each other, the first clamping plate 42 and the second clamping plate 43 clamp the broken belt. When the first clamping plate 42 and the second clamping plate 43 move away from each other, the first clamping plate 42 and the second clamping plate 43 release the broken belt.

[0055] As an example, the entrainment assembly 40 can be positioned above or below the material strip 200 along its thickness. Before the first and second clamping plates 42, 43 can clamp the broken strip, the broken strip must be manually inserted between the first and second clamping plates 42, 43. As an example, the first and second clamping plates 42, 43 can also be positioned on opposite sides of the material strip 200 along its thickness, with the material strip 200 always passing through the gap between the first and second clamping plates 42, 43. In this embodiment, manual insertion is not required; the first and second clamping plates 42, 43 can clamp the broken strip. For ease of explanation, the following embodiments utilize the example of the entrainment assembly 40 being positioned above or below the material strip 200 along its thickness.

[0056] During actual work, after observing the broken belt through the visual window, the employee presses the first button that can interact with the control component and sends a broken belt instruction to the control component, so that the control component controls the first active lead belt component 32 and / or the second active lead belt component 33 to drive the lead belt 31 to drive the entrainment component 40 to move to the broken belt position. Then, the employee inserts the broken belt between the first clamping plate 42 and the second clamping plate 43 from the heat dissipation port facing the broken belt position. Then, the employee presses the second button that can interact with the control component and sends the lead belt 31 instruction to the control component, so that the control component controls the entrainment motor to drive the first clamping plate 42 and the second clamping plate 43 to clamp the broken belt, and pull the broken belt along the preset direction X to the outside of the drying channel 11.

[0057] The entrainment assembly 40 is composed of the entrainment motor, the mounting base 41 , the first clamping plate 42 and the second clamping plate 43 . The entrainment assembly 40 has a simple structure and is easy to operate.

[0058] In some optional embodiments, the drying device 100 further includes a plurality of air nozzles 50 located in the drying passage 11 and disposed on at least one side of the material strip 200 along the thickness direction of the material strip 200 , with all air nozzles 50 located on the same side of the material strip 200 being spaced apart along a preset direction X. For example, the drying device 100 includes a plurality of air nozzles 50 located in the drying passage 11 and disposed on each side of the material strip 200 along the thickness direction of the material strip 200 , with all air nozzles 50 located on the same side of the material strip 200 being spaced apart along the preset direction X and configured to blow hot air toward the material strip 200 to dry the material strip 200 .

[0059] The hot air flow heated by the heating component is blown into the drying channel 11 through the air nozzle 50 and blown toward the material strip 200, thereby facilitating uniform and efficient heating of the material strip 200.

[0060] In some optional embodiments, the drying device 100 also includes a coating component 60, which is arranged upstream of the drying body 10 along a preset direction X, and the coating component 60 includes a coating roller 61 and a coating head 62, and the coating roller 61 and the coating head 62 are distributed on opposite sides of the material strip 200 along the thickness direction of the material strip 200, and the coating head 62 presses the material strip 200 against the coating roller 61 and is used to coat the material strip 200.

[0061] Taking the material strip 200 as an electrode material strip as an example, the coating head 62 coats the electrode material strip to form an active material layer.

[0062] In some optional embodiments, the drying device 100 also includes a plurality of tensioning rollers 70 distributed on at least one side of the material belt 200 along the thickness direction of the material belt 200. All tensioning rollers 70 on the same side are arranged at intervals along the transmission direction of the material belt 200 and are used to tension the material belt 200 to achieve transmission of the material belt 200.

[0063] The present application also provides a pole piece manufacturing production line, which includes the drying device 100 as described in any of the above embodiments. The pole piece manufacturing production line in this embodiment has the effects brought by any of the above embodiments, so it will not be repeated here.

[0064] The above-mentioned drying device 100 and electrode manufacturing production line are provided with a lead unit 30 and a clamping assembly 40. The lead unit 30 can drive the clamping assembly 40 to move and position the broken belt, and drive the broken belt to move to the outside of the drying channel 11 for splicing, thereby reducing the repeated opening and closing of the heating component of the drying device 100 and the manual operation of the lead 31. In this process, there is no need to cool the drying channel 11, so there is no need to repeatedly open or close the door body, which reduces the waste of manpower, material resources and energy, and improves production efficiency and capacity.

[0065] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A drying device, characterized in that: The drying device comprises: A drying body (10) having a drying passage (11) extending along a preset direction (X); A material strip winding assembly (20) is arranged downstream of the drying body (10) along the preset direction (X), and the material strip winding assembly (20) is used to drive the material strip (200) to be transported and wound after being dried through the drying channel (11); a leader unit (30), comprising a leader (31), a first active leader assembly (32), and a second active leader assembly (33), wherein the first active leader assembly (32) and the second active leader assembly (33) are respectively arranged upstream and downstream of the drying body (10) along the preset direction (X), and the first active leader assembly (32) and the second active leader assembly (33) cooperate with each other and are used to drive the leader (31) to be transported and pass through the drying channel (11); and A belt entrainment component (40) is arranged on the leading belt (31), and the belt entrainment component (40) is controlled by the leading belt unit (30) and is used to clamp the broken belt when the material belt (200) in the drying channel (11) is broken and drive the broken belt to move along the preset direction (X) to the external belt of the drying channel (11).

2. The drying device according to claim 1, characterized in that: The first active lead belt assembly (32) includes a first active lead belt roller (321) and a first active lead belt gear (322), and the first active lead belt gear (322) is sleeved on and fixed to the first active lead belt roller (321); the second active lead belt assembly (33) includes a second active lead belt roller (331) and a second active lead belt gear (332), and the second active lead belt gear (332) is sleeved on and fixed to the second active lead belt roller (331), and opposite ends of the leader belt (31) are respectively engaged with the first active lead belt gear (322) and the second active lead belt gear (332).

3. The drying device according to claim 2, characterized in that: There are at least two first active lead gears (322) and are spaced apart along the axial direction of the first active lead roller (321); the lead belts (31) correspond to the first active lead rollers (321) one by one, and one end of the lead belts (31) is engaged with the corresponding first active lead gears (322); there are at least two second active lead gears (332) and are spaced apart along the axial direction of the second active lead roller (331); the lead belts (31) correspond to the second active lead rollers (331) one by one, and the other end of the lead belts (31) is engaged with the corresponding second active lead gears (332); and the entraining assembly (40) is connected to all the lead belts (31).

4. The drying device according to claim 3, characterized in that: The first active guide roller (321) includes a first active guide roller portion (3211) and first active guide shaft portions (3212) arranged at opposite ends of the first active guide roller portion (3211); the first active guide gear (322) corresponds to the first active guide shaft portion (3212) in a one-to-one manner, and the first active guide gear (322) is sleeved on and fixed to the corresponding first active guide shaft portion (3212); the outer diameter of the first active guide roller portion (3211) is the same as the outer diameter of the first active guide gear (322), and the axial length of the first active guide roller portion (3211) is greater than the axial length of the first active guide shaft portion (3212); The second active guide roller (331) includes a second active guide roller portion (3311) and a second active guide shaft portion (3312) arranged at two opposite ends of the second active guide roller portion (3311); the second active guide gear (332) corresponds to the second active guide shaft portion (3312) one by one, and the second active guide gear (332) is sleeved and fixed on the corresponding second active guide shaft portion (3312); the outer diameter of the second active guide roller portion (3311) is the same as the outer diameter of the second active guide gear (332), and the axial length of the second active guide roller portion (3311) is greater than the axial length of the second active guide shaft portion (3312).

5. The drying device according to claim 2, characterized in that: There are at least two first driving lead gears (322) and they are spaced apart along the axial direction of the first driving lead roller (321), and one end of the lead belt (31) is meshed with all the first driving lead gears (322); there are at least two second driving lead gears (332) and they are spaced apart along the axial direction of the second driving lead roller (331), and the other end of the lead belt (31) is meshed with all the second driving lead gears (332).

6. The drying device according to claim 1, characterized in that: The leader unit (30) further comprises a plurality of groups of driven leader assemblies (80), all of which are arranged on the bottom side of the leader (31) along its thickness direction and are spaced apart along the extension direction of the leader (31), and all groups of the driven leader assemblies (80) cooperate and are used to guide the transmission of the leader (31).

7. The drying device according to any one of claims 1 to 6, characterized in that: The entrainment assembly (40) comprises an entrainment motor, a mounting seat (41), a first clamping plate (42) and a second clamping plate (43), wherein the first clamping plate (42) and the second clamping plate (43) are mounted on the mounting seat (41), and the entrainment motor is in transmission connection with the first clamping plate (42) and / or the second clamping plate (43) and is used to drive the first clamping plate (42) and the second clamping plate (43) to clamp or release the broken belt.

8. The drying device according to any one of claims 1 to 6, characterized in that: The guide belt (31) is any one of a chain and a synchronous belt.

9. The drying device according to any one of claims 1 to 6, characterized in that: The drying device further comprises a plurality of air nozzles (50) located in the drying channel (11) and arranged on at least one side of the material belt (200) along the thickness direction of the material belt (200); all the air nozzles (50) located on the same side of the material belt (200) are arranged at intervals along the preset direction (X) and are used to blow hot air flow toward the material belt (200).

10. A pole piece manufacturing production line, characterized in that: It comprises the drying device according to any one of claims 1 to 9.

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