A thermal equilibrium electrode roll press

Abstract

The present invention relates to the technical field of battery manufacturing equipment, and provides a thermal equilibrium electrode roll press, which includes a bearing seat; a pressing roller is rotatably arranged on the bearing seat, and a plurality of pressing rollers are arranged adjacent to each other, and a rolling space is formed between two adjacent pressing rollers for rolling an electrode sheet; a main heating element is arranged inside the pressing roller; a heating ring is arranged on the bearing seat. Through the above technical solution, the problems in the prior art are solved that when the electrode pressing roller is heated at a constant temperature, the bearing seat takes away the heat of the pressing roller, resulting in slow heating; when shutting down for maintenance, the heat feedback of the bearing seat causes the pressing roller to dissipate heat slowly, affecting the surface accuracy of the pressing roller and the finished product quality of the electrode sheet.

Description

Technical Field

[0001] The present invention relates to the technical field of battery manufacturing equipment, and in particular, to a thermal balance electrode roller press. Background Art

[0002] In the production process of electrode materials, the roller press is a key piece of equipment. During the pressing operation, due to the mutual friction between the roller pressing components and the electrode materials, and the influence of the external environmental temperature, it is extremely easy to cause uneven temperature distribution of the roller press. This will not only affect the pressing effect, resulting in instability of the density and performance of the electrode materials, but also may shorten the service life of the equipment due to local overheating. When starting the equipment to carry out constant-temperature heating of the pressure roller, the bearing seat supporting the pressure roller will take away part of the heat of the pressure roller, making the heating rate of the pressure roller slower than that of simply heating the pressure roller. When the work is finished and shutdown maintenance is carried out, due to the heat feedback of the bearing seat, the heat dissipation of the pressure roller will also become slow. The pressure roller keeps the working temperature for a long time in the non-working state, which is likely to damage the surface accuracy of the pressure roller, thereby affecting the quality of the pressed electrode sheet products. Summary of the Invention

[0003] The present invention provides a thermal balance electrode roller press, which solves the problems in the related art that when carrying out constant-temperature heating of the electrode pressure roller, the bearing seat takes away the heat of the pressure roller, resulting in slow heating; during shutdown maintenance, the heat feedback of the bearing seat makes the heat dissipation of the pressure roller slow, affecting the surface accuracy of the pressure roller and the quality of the electrode sheet products.

[0004] The technical solution of the present invention is as follows:

[0005] A thermal balance electrode roller press for rolling an electrode sheet, comprising:

[0006] A bearing seat;

[0007] A pressure roller, the pressure roller is rotatably arranged on the bearing seat, the pressure rollers are arranged adjacent to each other, and a rolling space is formed between two adjacent pressure rollers for rolling the electrode sheet;

[0008] A main heating element, the main heating element is arranged inside the pressure roller;

[0009] A heating ring, the heating ring is arranged on the bearing seat.

[0010] As a further technical solution, the pressure roller has a receiving cavity, the main heating element is arranged in the receiving cavity, and the main heating element is close to the inner wall of the receiving cavity.

[0011] As a further technical solution, there are a plurality of the bearing seats, and the plurality of bearing seats are arranged adjacent to each other. Further comprising:

[0012] A housing, which is arranged on the bearing seat. The housing has an air flow chamber, and the heating ring is located in the air flow chamber. Both the bearing seat and the housing are provided in pairs and are located on both sides of the pressure roller.

[0013] As a further technical solution, it further includes:

[0014] A blowing housing, both ends of which are respectively arranged on the housings on both sides of the pressure roller. The blowing housing has an inner cavity, both ends of the inner cavity communicate with the air flow chamber, and several of the air flow chambers and the inner cavity together form a first air flow channel. The inner cavity also has an outlet, and the outlet leads to the surface of the pressure roller.

[0015] As a further technical solution, the blowing housing also has a blowing channel for communicating the first air flow channel and the outlet, and it further includes:

[0016] A first blocking member, which is arranged in the inner cavity in a lifting and sliding manner. The first blocking member has a blocking portion, and after the first blocking member slides, the blocking portion gradually blocks or cancels blocking the blowing channel.

[0017] As a further technical solution, it further includes:

[0018] A first elastic member, one end of which is arranged on the first blocking member and the other end is arranged on the inner wall of the inner cavity, providing a force for the first blocking member to slide upward.

[0019] As a further technical solution, it further includes:

[0020] A second blocking member, which is arranged at the outlet in a transverse sliding manner. After sliding, it enlarges or reduces the outlet, and after the outlet is reduced, it faces the tangent direction of the surface of the pressure roller.

[0021] As a further technical solution, it further includes:

[0022] A slider, which is slidably arranged on the inner wall on one side of the outlet;

[0023] A first connecting rod, one end of which is hinged to the second blocking member and the other end is hinged to the slider;

[0024] A second connecting rod, one end of which is hinged to the first blocking member and the other end is hinged to the slider. After the first blocking member slides up and down, it drives the second connecting rod to slide horizontally. The first connecting rod has a scraping portion. After the slider slides down and drives the first connecting rod to swing, the scraping portion extends out of the outlet and slidably abuts against the outer wall of the pressure roller.

[0025] As a further technical solution, the housing also has a filter air inlet, and it further includes:

[0026] Filter element, the filter element is arranged in the first air flow channel, on one side of the filtering air outlet, and the air blown out from the outlet sequentially passes through the surface of the pressure roller, the filter element and the filtering air outlet.

[0027] As a further technical solution, two adjacent blowing shells are arranged in a vertical offset relative to the pressure roller, and further include:

[0028] Air pump, the air pump is communicated with the air flow cavity. After the output air flow of the air pump increases, the pressure in the first air flow channel increases, driving the first stopper to slide down.

[0029] The working principle and beneficial effects of the present invention are as follows:

[0030] In the present invention, the thermal balance electrode roller press mainly consists of a bearing seat, a pressure roller, a main heating element and a heating ring. The pressure roller is made of high-quality alloy steel and there are three adjacent ones. Both ends of each pressure roller are rotatably installed on the corresponding bearing seat through high-precision rolling bearings. The distance between two adjacent pressure rollers is precisely designed to form a suitable rolling space to ensure that the electrode sheet can be evenly and effectively rolled therein. The main heating element uses electric heating rods, which are evenly distributed inside the pressure roller. These electric heating rods are fixed by high-temperature resistant insulating materials and are connected to an external power supply and control system, and can quickly and evenly heat the pressure roller. The heating ring is arranged around the bearing seat, on the outer periphery of the rotating shaft of the pressure roller, and the heating ring keeps heating continuously in both the working state and the non-working state.

[0031] After actual night production stops, the device is shut down. After a night of shutdown, the temperature of the pressure roller usually drops to about 30 °C. When processing starts the next day, the pressure roller needs to be reheated to the standard processing temperature of about 130 °C. During the reheating process, since the pressure roller is rotatably arranged on the bearing seat, heat transfer will occur, and part of the heat will be transferred to the bearing seat until the heat transfer reaches equilibrium. At this time, the temperature of the bearing seat is about 70 - 80 °C. In summary, during the reheating process, due to the heat transfer between the bearing seat and the pressure roller, the heating balance time is greatly extended, usually more than 1 h. The heating ring can continuously keep the temperature of the bearing seat during the night shutdown state, so that the temperature of the bearing seat always remains at 70 - 80 °C, which can not only keep the temperature of the bearing seat, but also slightly increase the temperature of the roller. Therefore, when restarting the machine the next day, since the bearing seat has maintained the balanced heat temperature, the time to heat the roller to the standard processing temperature is greatly accelerated, about 30 min faster, greatly improving the processing efficiency. Description of the Drawings

[0032] The above characteristics, technical features, advantages and implementation manners of the present invention will be further described below in a clear and understandable manner in conjunction with the accompanying drawings.

[0033] Figure 1 Schematic diagram of the bearing seat and the pressing roller structure in the present invention;

[0034] Figure 2 Schematic diagram of the structure of the present invention;

[0035] Figure 3 Schematic diagram of the internal structure of the present invention;

[0036] Figure 4 Schematic diagram of the internal structure of the blowing shell from the first perspective in the present invention;

[0037] Figure 5 Schematic diagram of the internal structure of the blowing shell from another perspective in the present invention;

[0038] Figure 6 is Figure 5 Enlarged structure diagram of part A in.

[0039] In the figure: bearing seat - 1, pressing roller - 2, rolling space - 201, accommodation cavity - 202, main heating element - 3, heating ring - 4, housing - 5, air flow cavity - 501, first air flow channel - 502, filter air outlet - 503, blowing shell - 6, inner cavity - 601, outlet - 602, blowing channel - 603, first stopper - 7, blocking part - 701, first elastic member - 8, second stopper - 9, slider - 10, first connecting rod - 11, scraping part - 1101, second connecting rod - 12, filter screen member - 13. Specific embodiments

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, and other embodiments can be obtained.

[0041] To make the drawings concise, only the parts related to the invention are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0042] In this text, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In addition, in the description of the present application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0044] Referring to Figures 1 to 6 , an embodiment of the present invention provides a thermal balance electrode roll press for rolling electrode sheets, which includes a bearing housing 1; a pressing roller 2 is rotatably arranged on the bearing housing 1, and a plurality of pressing rollers 2 are arranged adjacent to each other. A rolling space 201 is formed between two adjacent pressing rollers 2 for rolling electrode sheets; a main heating element 3 is arranged inside the pressing roller 2; a heating ring 4 is arranged on the bearing housing 1.

[0045] In this embodiment, the thermal balance electrode roll press mainly consists of a bearing housing 1, a pressing roller 2, a main heating element 3, and a heating ring 4. The pressing roller 2 is made of high-quality alloy steel and three are arranged adjacent to each other. Both ends of each pressing roller 2 are rotatably installed on the corresponding bearing housing 1 through high-precision rolling bearings. The distance between two adjacent pressing rollers 2 is precisely designed to form a suitable rolling space 201 to ensure that the electrode sheets can be uniformly and effectively rolled therein. The main heating element 3 uses electric heating rods, which are uniformly distributed inside the pressing roller 2. These electric heating rods are fixed by high-temperature resistant insulating materials and are connected to an external power supply and control system, capable of quickly and uniformly heating the pressing roller 2. The heating ring 4 is arranged around the bearing housing 1, located on the outer circumference of the rotation axis of the pressing roller 2, and the heating ring 4 remains in a continuously heated state both in the working state and the non-working state.

[0046] After the actual night production stops, the device is shut down. After a night of shutdown, the temperature of the pressure roller 2 usually drops to about 30°C. When processing starts the next day, the pressure roller 2 needs to be reheated to the standard processing temperature of about 130°C. During the reheating process, since the pressure roller 2 is rotationally arranged on the bearing block 1, heat transfer will occur, and part of the heat will be transferred to the bearing block 1 until the heat transfer reaches equilibrium. At this time, the temperature of the bearing block 1 is about 70 - 80°C. In summary, during the reheating process, due to the heat transfer between the bearing block 1 and the roller, the heating equilibrium time is greatly extended, usually taking more than 1 hour. The heating ring 4 can continuously maintain the temperature of the bearing block 1 in the night shutdown state, so that the temperature of the bearing block 1 is always maintained at 70 - 80°C, which can not only maintain the temperature of the bearing block 1, but also slightly increase the temperature of the roller. As a result, when restarting the machine the next day, since the bearing block 1 has maintained the balanced heat temperature, the time to heat the roller to the standard processing temperature is greatly accelerated, about 30 minutes faster, greatly improving the processing efficiency.

[0047] Furthermore, the pressure roller 2 has a receiving cavity 202, and the main heating element 3 is arranged in the receiving cavity 202 and is close to the inner wall of the receiving cavity 202.

[0048] In this embodiment, a dedicated receiving cavity 202 is provided inside the pressure roller 2. The receiving cavity 202 is cylindrical and runs through the pressure roller 2 along the axial direction. The main heating element 3 is an electric heating wire distributed in a spiral shape and is closely arranged near the inner wall of the receiving cavity 202. The electric heating wire is connected to the inner wall of the receiving cavity 202 through a special fixing bracket to ensure its stable position. The inner wall of the receiving cavity 202 is made of a metal material with good heat conduction performance, such as copper or aluminum alloy, to achieve rapid heat transfer. This structural design enables the main heating element 3 to be fully close to the inner wall of the receiving cavity 202, thereby minimizing the loss during the heat transfer process to the greatest extent. When the main heating element 3 works, the generated heat can quickly be transferred to the whole of the pressure roller 2 through the inner wall of the receiving cavity 202, realizing rapid and uniform heating of the pressure roller 2. Due to the short and efficient heat transfer path, it can effectively reduce the heating time and energy consumption, improving the heating efficiency. At the same time, the rapid and uniform heating of the pressure roller 2 helps to ensure the quality stability and consistency of the electrode sheet during the roller pressing process.

[0049] Furthermore, there are several bearing blocks 1, and several bearing blocks 1 are arranged adjacent to each other. There is also a housing 5 arranged on the bearing blocks 1. The housing 5 has an air flow cavity 501, and the heating ring 4 is located in the air flow cavity 501. The bearing blocks 1 and the housing 5 are both arranged in pairs and are located on both sides of the pressure roller 2.

[0050] In this embodiment, two bearing seats 1 and one pressure roller 2 form a group, and multiple such groups are arranged adjacent to each other. Each bearing seat 1 is made of a high-strength alloy material to ensure stable support for the pressure roller 2. An air flow chamber 501 is formed inside the housing 5, and the heating ring 4 is an efficient electromagnetic induction heating ring 4, which is fixed at the central position of the air flow chamber 501 through a special ceramic clamp. Multiple groups of bearing seats 1 and the housing 5 are distributed in pairs on both sides of the pressure roller 2. The setting of multiple groups enables the progressive rolling of the electrode sheet in a process flow. By adjusting the distance between the pressure rollers 2, the electrode sheet is gradually pressed to the required size, improving the pressing accuracy and to a certain extent prolonging the accuracy and service life of the pressure roller 2. The heating ring 4 is located inside the air flow chamber 501, which can generate heat concentratedly, reduce heat dissipation, effectively transfer heat to the bearing seat 1, reduce the heat loss of the heating ring 4 and the bearing seat 1, and further reduce the heat loss from the pressure roller 2 to the bearing seat 1, thereby maintaining the uniformity and stability of the temperature of the pressure roller 2, helping to reduce energy consumption and prolong the service life of the equipment.

[0051] Furthermore, there is also a blowing housing 6, with both ends thereof respectively arranged on the housing 5 on both sides of the pressure roller 2. The blowing housing 6 has an inner cavity 601, and both ends of the inner cavity 601 communicate with the air flow chamber 501. A number of air flow chambers 501 and the inner cavity 601 together form a first air flow channel 502. The inner cavity 601 also has an outlet 602, and the outlet 602 leads to the surface of the pressure roller 2.

[0052] In this embodiment, a blowing housing 6 is further provided on the housing 5. The blowing housing 6 is made of a high-temperature resistant plastic material, and its two ends are respectively tightly connected to the housing 5 on both sides of the pressing roller 2. The blowing housing 6 has an inner cavity 601 inside, and the two ends of the inner cavity 601 are seamlessly communicated with the air flow cavities 501 on both sides of the housing 5 respectively, so as to connect a plurality of air flow cavities 501 into a continuous first air flow channel 502. A plurality of uniformly distributed outlets 602 are provided on one side of the inner cavity 601 close to the pressing roller 2, and these outlets 602 directly face the surface of the pressing roller 2. In the heating stage, under the action of the wind driving device, the hot air flow generated by the heating ring 4 enters the inner cavity 601 of the blowing housing 6 through the air flow cavity 501, and then blows out from the outlet 602, directly blowing on the surface of the pressing roller 2, so as to quickly increase the temperature of the pressing roller 2. In the cooling stage, cold air is introduced through an external cooling device. The cold air passes through the air flow cavity 501 and the inner cavity 601 of the blowing housing 6, and blows out from the outlet 602 to the surface of the pressing roller 2, accelerating the cooling of the pressing roller 2. This structural design effectively utilizes the air flow channel, directly guides the heated or cooled air to the surface of the pressing roller 2, and significantly improves the heating and cooling speeds. During heating, the pressing roller 2 can quickly reach the working temperature, reducing the preheating time and improving the production efficiency. During cooling, the temperature of the pressing roller 2 can be quickly reduced, facilitating equipment maintenance and reducing the adverse effects caused by excessive temperature on the pressing roller 2. This helps to maintain the stable performance of the pressing roller 2, extend its service life, and further improve the rolling quality of the electrode sheet and the production continuity.

[0053] Furthermore, the blowing housing 6 further has a blowing channel 603 for communicating the first air flow channel 502 and the outlet 602. A first blocking member 7 is slidably arranged in the inner cavity 601 in a lifting manner. The first blocking member 7 has a blocking portion 701. After the first blocking member 7 slides, the blocking portion 701 gradually blocks or cancels blocking the blowing channel 603.

[0054] In this embodiment, a dedicated blowing channel 603 is provided inside the blowing housing 6 for connecting the air flow channel and the outlet 602. The first stopper 7 is slidably mounted in the inner cavity 601 of the blowing housing 6 in a liftable manner. The first stopper 7 has a blocking portion 701, and the shape and size of the blocking portion 701 match those of the blowing channel 603. When the first stopper 7 slides downward, the blocking portion 701 gradually expands the blowing channel 603, increasing the air flow rate passing through. Conversely, when the first stopper 7 slides upward, the blocking portion 701 gradually blocks the blowing channel 603, reducing the air flow rate passing through the blowing channel 603. In addition, during the operation of the equipment, when it is necessary to clean the impurities or attachments on the surface of the pressure roller 2, the speed and flow rate of the air flow passing through the blowing channel 603 can be further increased, and the roller surface of the pressure roller 2 can be cleaned by warm air flow. When cleaning the surface of the pressure roller 2, the strong air flow can effectively remove impurities such as dust and debris on the surface of the pressure roller 2, keep the surface of the pressure roller 2 clean, and reduce the influence of impurity attachment on the rolling quality of the electrode sheet. This new effect further improves the overall performance and working efficiency of the equipment, and ensures the quality stability of the electrode sheet production.

[0055] Furthermore, one end of a first elastic member 8 is disposed on the first stopper 7, and the other end is disposed on the inner wall of the inner cavity 601, providing a force for the first stopper 7 to slide upward.

[0056] In this embodiment, when the first elastic member 8 is in its natural state, the first stopper 7 completely blocks the blowing channel 603. During the adjustment process, an external control device, such as an electric push rod or a pneumatic structure, is used to apply a force opposite to the elastic force of the first elastic member 8 to control the lifting position of the first stopper 7, thereby realizing the adjustment of the size of the blowing channel 603. This adjustable-size adjustment method and the synergistic effect of the first elastic member 8 make the air volume blown out from each outlet 602 tend to be close. In actual work, regardless of whether the equipment is in the state of heating up, cooling down or cleaning the surface of the pressure roller 2, there will be no situation where the wind force of a certain outlet 602 is too large or too small. This effect ensures the uniformity of heating or cooling of the surface of the pressure roller 2, and improves the accuracy and stability of temperature control. When cleaning the surface of the pressure roller 2, the uniform wind force can comprehensively and effectively remove impurities, avoiding the problem of incomplete local cleaning. Thereby, the performance of the thermal balance electrode roller press is further optimized, the high-quality rolling production of the electrode sheet is ensured, the defective rate of the product is reduced, and the production efficiency and the reliability of the equipment are improved.

[0057] Furthermore, a second stopper 9 is horizontally slidably disposed at the outlet 602. After sliding, the outlet 602 is enlarged or reduced, and after the outlet 602 is reduced, it faces the tangential direction of the surface of the pressure roller 2.

[0058] In this embodiment, a second baffle 9 is added and is horizontally slidably installed at the outlet 602. During the temperature control stage, the second baffle 9 slides to one side to increase the opening. As the opening increases, the opening direction gradually and evenly deviates towards the radial direction of the pressure roller 2. Such a design enables the blown air flow to more evenly cover the surface of the pressure roller 2, which helps to achieve more accurate temperature control and also enables the heat of the heating ring 4 to be transferred without using a large air flow. When cleaning work needs to be carried out, the second baffle 9 slides to the other side to reduce the outlet 602. At this time, the direction of the reduced outlet 602 faces the tangential direction of the surface of the pressure roller 2, making the air flow concentrated and having a stronger impact force, which can effectively remove impurities and attachments on the surface of the pressure roller 2. On the other hand, due to the special air flow direction, reducing the outlet 602 and blowing the air flow tangentially avoids the direct cooling of the pressure roller 2 by the low-temperature air flow, maintains the temperature of the pressure roller 2 during the cleaning process, ensures the performance of the pressure roller 2 and the subsequent working effect, and thus comprehensively improves the rolling quality and production efficiency of the electrode sheet.

[0059] Furthermore, it further includes a slider 10 slidably arranged on the inner wall of one side of the outlet 602; one end of a first connecting rod 11 is hinged to the second baffle 9, and the other end is hinged to the slider 10; one end of a second connecting rod 12 is hinged to the first baffle 7, and the other end is hinged to the slider 10. After the first baffle 7 slides up and down, it drives the second connecting rod 12 to slide horizontally. The first connecting rod 11 has a scraping portion 1101. After the slider 10 slides down and drives the first connecting rod 11 to swing, the scraping portion 1101 extends out of the outlet 602 and slidably abuts against the outer wall of the pressure roller 2.

[0060] In this embodiment, a slide rail is provided on the inner wall of one side of the outlet 602, and the slider 10 can slide smoothly on the slide rail. When the first baffle 7 slides up and down, it will drive the second connecting rod 12 to slide horizontally, thereby indirectly affecting the actions of the first connecting rod 11 and the second baffle 9 through the slider 10. The first connecting rod 11 is provided with a special scraping portion 1101. When the slider 10 slides down along the inner wall, it will drive the first connecting rod 11 to swing, so that the scraping portion 1101 extends out of the outlet 602 and abuts against the roller surface of the pressure roller 2. During the cleaning process, that is, after introducing a large flow of air, the scraping portion 1101 extending out of the outlet 602 can directly contact the surface of the pressure roller 2, enhancing the cleaning effect on stubborn attachments, and the air flow flowing through one side can also timely clean the scraped impurities. At the same time, through the linkage of each component, the integrated control of the size of the outlet 602, the air flow direction, and the actions of the cleaning components is realized, improving the automation degree and working efficiency of the equipment.

[0061] Furthermore, the housing 5 also has a filter air outlet 503, and it further includes a filter element 13 arranged in the first air flow channel 502, on one side of the filter air outlet 503. The air blown out from the outlet 602 passes through the surface of the pressure roller 2, the filter element 13, and the filter air outlet 503 in sequence.

[0062] In this embodiment, a filter air vent 503 is specifically provided on the housing 5. The filter element 13 is made of a fine metal filter screen and is installed in the first air flow channel 502 and is located on one side of the filter air vent 503. When the device is operating, the air blown out from the outlet 602 first blows over the surface of the pressure roller 2, then carries the possible impurities and dust through the filter element 13, and finally is discharged through the filter air vent 503. By providing the filter element 13 and the filter air vent 503, the impurities and dust blown up from the surface of the pressure roller 2 can be effectively filtered out. This not only helps to keep the inside of the first air flow channel 502 clean, preventing impurities from accumulating in the channel and affecting the smooth flow of the air current, but also can avoid the blown impurities from polluting the working environment again and the electrode sheet during the pressing process.

[0063] Furthermore, two adjacent blowing housings 6 are arranged in a vertical offset relative to the pressure roller 2. A gas pump is further included, and the gas pump is communicated with the air flow cavity 501. After the output air flow of the gas pump increases, the pressure in the first air flow channel 502 increases, driving the first stop member 7 to slide downward.

[0064] In this embodiment, two adjacent blowing housings 6 are arranged in a vertical offset in the vertical direction of the pressure roller 2. This offset arrangement is considered because the electrode sheet is conveyed in an S shape on several pressure rollers 2, and the position of the blowing housing 6 needs to avoid the conveying path of the electrode sheet, so as to ensure the smooth progress of the production process. The gas pump is closely communicated with the air flow cavity 501 through a pipeline. When the gas pump works and the output air flow changes, different effects will be brought. When the air flow rate increases, the pressure in the air flow cavity 501 rises rapidly, making the pressure in the first air flow channel 502 increase significantly, and the first stop member 7 slides downward against the elastic force of the first elastic member 8. At this time, the blowing channel 603 and the outlet 602 are in a relatively large open state. When the air flow rate decreases, the elastic force of the first elastic member 8 makes the first stop member 7 slide upward, and the blowing channel 603 and the outlet 602 become smaller. Under the temperature control state, a moderate air flow rate passes through the blowing channel 603 and the outlet 602 of appropriate sizes to evenly blow over the surface of the pressure roller 2 to achieve precise temperature control. Under the cleaning state, a larger air flow rate fully opens the blowing channel 603 and the outlet 602, and the powerful air flow can effectively remove the impurities and attachments on the surface of the pressure roller 2. The change of the output air flow of the gas pump automatically adjusts the position of the first stop member 7, thereby switching the states of the blowing channel 603 and the outlet 602 to adapt to the two different requirements of temperature control and cleaning. This design enables the thermal balance electrode roller press to accurately control the temperature, efficiently clean the roller surface, improve the pressing quality and production efficiency of the electrode sheet, and enhance the adaptability and reliability of the device.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A thermal equilibrium electrode roller press for rolling electrode sheets, characterized in that, Comprising: Bearing housing (1); Pressing rollers (2), the pressing rollers (2) are rotatably arranged on the bearing housing (1), the pressing rollers (2) are arranged adjacent to each other in several numbers, and a rolling space (201) is formed between two adjacent pressing rollers (2) for rolling the electrode sheet; Main heating element (3), the main heating element (3) is arranged inside the pressing roller (2); Heating ring (4), the heating ring (4) is arranged on the bearing housing (1); The pressing roller (2) has a receiving cavity (202), the main heating element (3) is arranged in the receiving cavity (202), and the main heating element (3) is close to the inner wall of the receiving cavity (202); The bearing housings (1) are several in number, and several bearing housings (1) are arranged adjacent to each other; Housing (5), the housing (5) is arranged on the bearing housing (1), the housing (5) has an air flow cavity (501), the heating ring (4) is located in the air flow cavity (501), and the bearing housing (1) and the housing (5) are both arranged in pairs and are located on both sides of the pressing roller (2); Blowing housing (6), both ends of the blowing housing (6) are respectively arranged on the housings (5) on both sides of the pressing roller (2), the blowing housing (6) has an inner cavity (601), both ends of the inner cavity (601) are communicated with the air flow cavity (501), and several air flow cavities (501) and the inner cavity (601) together form a first air flow channel (502), the inner cavity (601) also has an outlet (602), and the outlet (602) leads to the surface of the pressing roller (2); The blowing housing (6) also has a blowing channel (603), and the blowing channel (603) is used to communicate the first air flow channel (502) and the outlet (602); First blocking member (7), the first blocking member (7) is arranged to slide up and down in the inner cavity (601), the first blocking member (7) has a blocking portion (701), and after the first blocking member (7) slides, the blocking portion (701) gradually blocks or cancels blocking the blowing channel (603).

2. The hot balance electrode roll press according to claim 1, wherein Further comprising: First elastic member (8), one end of the first elastic member (8) is arranged on the first blocking member (7), and the other end is arranged on the inner wall of the inner cavity (601) to provide a force for the first blocking member (7) to slide upward.

3. The hot balance electrode roll press according to claim 1, characterized in that, Further comprising: Second blocking member (9), the second blocking member (9) is arranged to slide horizontally at the outlet (602), and after sliding, the outlet (602) is enlarged or reduced, and after the outlet (602) is reduced, it faces the tangent direction of the surface of the pressing roller (2).

4. The hot balance electrode roll press according to claim 3, characterized in that, Further comprising: Slider (10), the slider (10) is arranged to slide on the inner wall on one side of the outlet (602); First connecting rod (11), one end of the first connecting rod (11) is hinged to the second blocking member (9), and the other end is hinged to the slider (10); The second connecting rod (12), one end of the second connecting rod (12) is hinged to the first stopper (7), and the other end is hinged to the slider (10). After the first stopper (7) moves up and down and slides, it drives the second connecting rod (12) to slide horizontally. The first connecting rod (11) has a scraping portion (1101). After the slider (10) slides down and drives the first connecting rod (11) to swing, the scraping portion (1101) extends out of the outlet (602) and slidably abuts against the outer wall of the pressure roller (2).

5. A thermal equilibrium electrode roll press according to claim 1, characterized in that, The housing (5) further has a filter air outlet (503), and further includes: A filter element (13), the filter element (13) is disposed in the first air flow channel (502), on one side of the filter air outlet (503), and the air blown out from the outlet (602) sequentially passes through the surface of the pressure roller (2), the filter element (13) and the filter air outlet (503).

6. The hot balance electrode roll press according to claim 1, characterized in that, Two adjacent blowing housings (6) are arranged up and down in a staggered manner with respect to the pressure roller (2), and further include: An air pump, the air pump is communicated with the air flow cavity (501). After the output air flow of the air pump increases, the pressure in the first air flow channel (502) increases, driving the first stopper (7) to slide down.

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