Rolling device and electrode production equipment

Abstract

The utility model discloses a rolling device and electrode production equipment. The rolling device comprises a plurality of rollers which are arranged at intervals. Each first driving assembly is in transmission connection with one end of the corresponding roller, and the first driving assemblies are suitable for driving the rollers to rotate; each electric slip ring is connected to the end, away from the first driving assembly, of the corresponding roller; in the arrangement direction of the multiple rollers, the first driving assemblies and the electric slip rings are arranged at the same ends of the multiple rollers in a staggered mode, and therefore the space can be reasonably utilized, and the installation size is saved.

Description

Technical Field

[0001] This utility model relates to the field of electrode production equipment technology, and more specifically, to a roller pressing device and electrode production equipment. Background Technology

[0002] In related technologies, during the fabrication of dry electrodes, dry powder is typically rolled into a thin film using a rolling device, and then laminated with aluminum foil. However, current rolling devices are quite large and cannot be placed inside a glove box, making it difficult to meet the anhydrous and oxygen-free working environment requirements for sulfide electrolyte film formation experiments.

[0003] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0004] One objective of this invention is to provide a new technical solution for a roller pressing device.

[0005] According to a first aspect of the present invention, a roller pressing device is provided. The roller pressing device includes:

[0006] Multiple rolling mill rolls, wherein the multiple rolling mill rolls are spaced apart;

[0007] Multiple first drive components, each of which is drivenly connected to one end of one of the rolls, and the first drive components are adapted to drive the rolls to rotate;

[0008] Multiple electric slip rings, each of the electric slip rings being connected to one end of the roll away from the first drive assembly;

[0009] Along the arrangement direction of the plurality of rolls, at the same end of the plurality of rolls, the first drive assembly and the electric slip ring are alternately arranged.

[0010] Optionally, the first drive component includes a frameless motor.

[0011] Optionally, the first drive assembly further includes a harmonic reducer, through which the frameless motor is connected to the roll.

[0012] Optionally, the rolling device further includes a flat key, through which the output end of the first drive assembly is connected to the roll.

[0013] Optionally, the diameter of the roll is 150mm-250mm, and / or the width of the roll is 250mm-500mm.

[0014] Optionally, the rolling device further includes a second drive assembly, with a roll gap between every two adjacent rolls, the second drive assembly being capable of driving the rolls to move to adjust the width of each roll gap.

[0015] Optionally, the rolling device further includes multiple bearing seats, each of the rolls is mounted on the bearing seat, two adjacent bearing seats are movably connected relative to each other, and the second drive assembly is drivenly connected to the bearing seat located at one end.

[0016] Optionally, the second drive assembly includes a drive member, which is connected to the bearing housing via a floating joint.

[0017] Optionally, the second drive assembly further includes a connecting plate, one end of which is connected to the bearing housing and the other end of which is connected to the floating joint.

[0018] Optionally, the connecting plate is provided with a connecting groove, and the floating joint is connected to the connecting plate through the connecting groove.

[0019] Optionally, the roller pressing device further includes a sliding member with a groove, one of the two adjacent bearing seats being slidably connected to the groove and the sliding member being able to drive the bearing seat to slide, and the other being fixedly connected to the sliding member.

[0020] Optionally, the bearing housing is provided with a limiting block, which is slidably disposed within the groove.

[0021] According to a second aspect of the present invention, an electrode production apparatus is provided. This electrode production apparatus includes the rolling device described in the above embodiments.

[0022] One technical advantage of this application is that multiple rolls are spaced apart, with one end of each roll connected to a first drive assembly and the other end connected to an electric slip ring. Along the arrangement direction of the multiple rolls, the first drive assembly and the electric slip ring are staggered at the same end of the multiple rolls, thereby making reasonable use of space and saving installation volume.

[0023] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0025] Figure 1 This is a partial structural schematic diagram of a roller pressing device according to an embodiment of the present invention.

[0026] Figure 2 This is a partial structural side view of a roller pressing device according to an embodiment of the present invention.

[0027] Figure 3 This is a partial structural side view of the roller pressing device according to another embodiment of the present invention.

[0028] Figure label:

[0029] 1. Roll; 2. First drive assembly; 21. Frameless motor; 22. Mounting base; 31. Drive component; 32. Floating joint; 33. Connecting plate; 4. Bearing housing; 41. Limiting block; 5. Sliding component; 51. Slide groove; 6. Slide rail; 7. Electric slip ring; 8. Frame. Detailed Implementation

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0032] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0033] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0035] According to one embodiment of this application, a roller pressing device is provided. Figures 1 to 3 As shown, the rolling device includes multiple rolls 1, multiple first drive components 31, and multiple slip rings 7. The multiple rolls 1 are spaced apart. Each first drive component 2 is tractively connected to one end of one of the rolls 1, and is adapted to drive the roll 1 to rotate. Each slip ring 7 is connected to the end of one of the rolls 1 away from the first drive component 2. Along the arrangement direction of the multiple rolls 1, the first drive components 2 and the slip rings 7 are staggered at the same end of the multiple rolls 1.

[0036] like Figure 1 As shown, in this example, multiple rolls 1 are spaced apart, and the axes of each roll 1 can be parallel to each other. There is a roll gap between two adjacent rolls 1, which can press the film. One end of the roll 1 is connected to a first drive assembly 2, and the other end is connected to an electric slip ring 7. Along the arrangement direction of the multiple rolls 1, the first drive assembly 2 and the electric slip ring 7 are staggered at the same end of the multiple rolls 1, so as to make reasonable use of space and save installation volume.

[0037] The roller 1 has an electric slip ring 7 and a first drive assembly 2 at both ends along its axial direction. The first drive assembly 2 is used to drive the roller 1 to rotate. The electric slip ring 7 is connected to the roller 1 and is used to provide power and transmit signals to electronic devices such as heating rods and temperature sensors inside the roller 1. The electric slip ring 7 has a small diameter, while the first drive assembly 2 has a large diameter. Therefore, the electric slip ring 7 and the first drive assembly 31 are respectively set at both ends of the roller 1, and the electric slip ring 7 and the first drive assembly 31 on multiple rollers 1 are staggered. This helps to make reasonable use of space, reduce the overall installation volume of the roller pressing device, and allow the roller pressing device to be placed inside the glove box, so as to meet the requirements of the anhydrous and oxygen-free working environment for sulfide electrolyte film formation experiments.

[0038] In this example, multiple rolls 1 are spaced apart; for example, five rolls 1 can be arranged in parallel. There is a roll gap between every two adjacent rolls 1, thus forming four roll gaps, from one end to the other, namely the first roll gap, the second roll gap, the third roll gap, and the fourth roll gap. The first roll gap can correspond to the feeding mechanism, that is, the feeding mechanism can feed the powder into the first roll gap. The powder can be pressed into a film through the first roll gap. The film can be thinned to a preset thickness under the extrusion of the second and third roll gaps. Then, the film is laminated with aluminum foil in the fourth roll gap.

[0039] Of course, the number of rolls 1 can also be set to other quantities, for example, three, four, six or seven rolls 1 can be set, etc. Those skilled in the art can decide according to the actual situation, and no specific limitation is made here.

[0040] In one example, the first drive assembly 2 includes a frameless motor 21. The frameless motor 21 is drively connected to one end of the roll 1 and can drive the roll 1 to rotate. The frameless motor 21 has a simplified structure, which can reduce the overall space occupied. Furthermore, the frameless motor 21 can achieve high torque density and provide greater torque output.

[0041] For example, the frameless motor 21 can be a frameless torque motor, etc. Those skilled in the art can determine the appropriate method based on the actual situation, and no specific limitations are made here.

[0042] In one example, the first drive assembly 2 further includes a harmonic reducer, through which the frameless motor 21 is connected to the roll 1.

[0043] In this example, the rotor of the frameless motor 21 is connected to the input shaft of the harmonic reducer, and the output end of the harmonic reducer is driven to one end of the roll 1. The frameless motor 21 can drive the roll 1 to rotate through the harmonic reducer. The harmonic reducer has a compact structure and uses relatively little material, so its size and weight are relatively small, which helps to reduce the overall installation volume of the rolling device.

[0044] In this example, the harmonic reducer has a speed ratio of 160, a backlash of less than 0.01 degrees, a maximum output torque of 800 Nm, and a repeatability of ±10 arcseconds for the frameless torque motor.

[0045] In one example, the rolling device also includes a flat key, through which the output end of the first drive assembly 2 is connected to the roll 1.

[0046] In this example, the first drive assembly 2 includes a hollow frameless motor 21, meaning the roll 1 can be inserted into the frameless motor 21. The outer surface of the roll 1 has a keyway, and after insertion, the roll 1 can be driven by the frameless motor 21 via a key. Alternatively, the output end of the first drive assembly 2 can be the output end of a harmonic reducer, and the output end of the harmonic reducer can be connected to the roll 1 via a key. This key allows for a drive connection between the output end of the first drive assembly 2 and the roll 1, eliminating the need for a coupling and significantly reducing the overall axial dimension of the first drive assembly 2 and the roll 1.

[0047] In this example, multiple flat keys can be provided to improve the stability and reliability of torque transmission from the output end to roll 1. For example, two, three, or four flat keys can be provided, as can be determined by those skilled in the art based on the actual situation, and no specific limitation is made here.

[0048] In one example, the diameter of the roll 1 is 150mm-250mm, and / or the width of the roll 1 is 250mm-500mm.

[0049] In this example, the diameter of roller 1 can be set to 150mm-250mm. If the diameter of roller 1 is too large, the corresponding film-forming pressure and the working torque of the first drive component 2 driving the roller 1 to rotate will also be large, which can easily lead to a large overall size of the roller pressing device. If the diameter of roller 1 is too small, it will result in insufficient rigidity of roller 1, large deformation, and difficulty in controlling the size of the roller gap. Therefore, in this invention, the diameter of roller 1 is 150mm to 250mm, which can ensure the rigidity of roller 1 and avoid excessive working torque of the first drive component 2. The diameter of roller 1 can be 150mm, 170mm, 190mm, 200mm, 220mm or 250mm, etc., which can be determined by those skilled in the art according to the actual situation, and is not specifically limited here.

[0050] In this example, the width of roller 1 can be set to 250mm-500mm. The width of roller 1 refers to the width of the film that roller 1 can press into shape. The width of roller 1 can be designed according to the required film width; for example, the width of roller 1 can be 250mm, 280mm, 300mm, 350mm, 400mm, 450mm, or 500mm, etc. Those skilled in the art can determine this according to the actual situation, and no specific limitation is made here.

[0051] In one example, the rolling device further includes a second drive assembly with a roll gap between every two adjacent rolls 1, the second drive assembly being capable of driving the rolls 1 to move to adjust the width of each roll gap.

[0052] In this example, the second drive assembly can move the roller 1 radially to adjust the width of the roll gap. For example, the second drive assembly can move multiple rollers 1 relatively away, thereby increasing the width of the roll gap to facilitate cleaning and maintenance of the inside of the roll gap, and also to facilitate the disassembly or installation of the rollers 1. The second drive assembly can also move multiple rollers 1 relatively close together for pressing, thereby reducing the width of the roll gap to facilitate the extrusion of the diaphragm.

[0053] In one example, such as Figures 1 to 3 As shown, the rolling device also includes multiple bearing seats 4, each of the rolls 1 is respectively mounted on the bearing seat 4, two adjacent bearing seats 4 are movably connected relative to each other, and the second drive assembly is drivenly connected to the bearing seat 4 located at one end.

[0054] like Figures 1 to 3As shown in this example, each roll 1 has a bearing housing 4 on both sides along the axial direction. The roll 1 is rotatably connected to the bearing housing 4. The bearing housing 4 can slide radially along the roll 1 on the frame 8, thereby driving the roll 1 to move. Adjacent bearing housings 4 can be movably connected relative to each other. The second drive assembly is driven by one end of the bearing housing 4, and the second drive assembly can drive the bearing housing 4 at one end to slide, thereby driving multiple bearing housings 4 to move simultaneously. That is, multiple rolls 1 can be driven to move simultaneously by one set of second drive assemblies, thereby reducing the number of second drive assemblies and saving the overall installation volume of the rolling device.

[0055] like Figure 2 and Figure 3 As shown, in this example, the roller pressing device also includes a sliding member 5, which has a groove 51. One of the two adjacent bearing seats 4 is slidably connected to the groove 51, and the sliding member 5 can drive the bearing seat 4 to slide. The other is fixedly connected to the sliding member 5.

[0056] It should be noted that two adjacent bearing seats 4 can be connected by a sliding member 5. The second drive assembly is connected to one end of the bearing seat 4, while the bearing seat 4 at the end furthest from the second drive assembly can be fixed to the frame 8. For example, if five rolls 1 are spaced apart, the second drive assembly is connected to the bearing seat 4 on the first roll 1 and can drive the first, second, third, and fourth rolls 1 to move respectively, while the bearing seat 4 of the fifth roll 1 can be fixed to the frame 8.

[0057] In this example, the bearing housing 4 is provided with a limiting block 41, which is slidably disposed within the groove 51. That is, the sliding member 5 is provided with a groove 51, and the bearing housing 4 is provided with a limiting block 41 that cooperates with the groove 51. The limiting block 41 can be slidably disposed within the groove 51 so that the corresponding bearing housing 4 can slide along the groove 51. The sliding direction of the limiting block 41 is the width direction of the roll gap. One of every two adjacent bearing housings 4 is fixedly connected to the sliding member 5, and the other bearing housing 4 can be slidably disposed along the groove 51.

[0058] like Figure 2As shown, when the second drive assembly moves the bearing seat 4 at one end, for example, when the second drive assembly moves the bearing seat 4 to the left, the sliding member 5 connected to the first bearing seat 4 can slide relative to the second bearing seat 4 first. When the limiting block 41 abuts against the right side wall of the slide groove 51, it can move the second bearing seat 4 to the left, and so on, thereby sequentially moving multiple bearing seats 4 to the left, which can increase the width of the roll gap and make the width of each roll gap consistent, so as to facilitate cleaning and maintenance of the inside of multiple roll gaps. The second drive assembly drives the bearing seat 4 to move to the right, that is, towards the fifth roll 1, so as to reduce the width of the roll gap between each roll 1, thereby pressing the film.

[0059] like Figure 3 As shown, in this example, the frame 8 is provided with a slide rail 6. For example, the slide rail 6 can be a sliding plate structure, and the sliding member 5 can be slidably disposed on the slide rail 6. Sliding plates can be provided on both opposite sides of the frame 8 to improve the sliding stability of the bearing seat 4.

[0060] like Figure 1 As shown, in this example, the first drive assembly 2 also includes a mounting base 22, which can be mounted on the bearing housing 4, and the frameless motor 21 can be mounted on the mounting base 22. During assembly, the mounting base 22 can be fixed to the bearing housing 4 first, then the shaft end of the roll 1 can be connected to the first drive assembly 2, and finally the screws connecting the mounting base 22 and the frameless motor 21 can be tightened.

[0061] In this example, the rotating part of the electric slip ring 7 can be connected to the roll 1, and the stationary part of the slip ring can be mounted on the corresponding bearing seat 4. Of course, the connection method of the specific structure of the electric slip ring 7 can be determined by those skilled in the art according to the actual situation, and no specific limitation is made here.

[0062] In one example, the second drive assembly includes a drive element 31, which is connected to the bearing housing 4 via a floating joint 32.

[0063] In this example, the drive element 31 can be a linear actuator, such as a cylinder, hydraulic cylinder, or linear motor. Those skilled in the art can determine the appropriate type based on the specific circumstances, and no specific limitations are made here. The drive element 31 is connected to the bearing housing 4 at one end via a floating joint 32, thereby reducing the eccentricity of the drive element 31. Within the allowable eccentricity range, the drive element 31 can stably drive the bearing housing 4 to move, while also solving the problem of insufficient balance accuracy and maintaining smooth operation of the drive element 31.

[0064] In one example, such as Figure 1 and Figure 3As shown, the second drive assembly also includes a connecting plate 33, one end of which is connected to the bearing seat 4 and the other end is connected to the floating joint 32.

[0065] In this example, the floating joint 32 can be connected to the bearing housing 4 via the connecting plate 33. One end of the connecting plate 33 can be fixedly connected to the bearing housing 4 by means of fasteners or welding. The end of the connecting plate 33 facing away from the bearing 4 is suitable for mounting the floating joint 32.

[0066] The connecting plate 33 is provided with a connecting groove, and the floating joint 32 is connected to the connecting plate 33 through the connecting groove. For example, the end of the connecting plate 33 away from the bearing seat 4 is provided with a dovetail groove, and one end of the floating joint 32 can be engaged in the dovetail groove of the connecting plate 33. Of course, the specific shape of the connecting groove can be determined by those skilled in the art according to the actual situation, and is not specifically limited here.

[0067] like Figure 1 and Figure 3 As shown, in this example, bearing seats 4 are respectively provided on both sides of the roll 1 along the axial direction. The two bearing seats 4 on one end of the roll 1 can be connected by a connecting plate 33. One end of the floating joint 32 is connected to the connecting plate 33, and the other end is connected to the output end of the drive component 31. The floating joint 32 is connected to the bearing seats 4 through the connecting plate 33, so that the floating joint 32 can be positioned between the two bearing seats 4, thereby improving the stability of the second drive component driving the roll 1 to move.

[0068] According to another embodiment of the present invention, an electrode production apparatus is provided. This electrode production apparatus includes the roller pressing device described in the above embodiment. Figures 1 to 3 As shown, the rolling device includes multiple rolls 1, multiple first drive components 31, and multiple electric slip rings 7. The multiple rolls 1 are spaced apart. Each first drive component 2 is tractively connected to one end of one of the rolls 1, and is adapted to drive the roll 1 to rotate. Each electric slip ring 7 is connected to the end of one of the rolls 1 away from the first drive component 2. Along the arrangement direction of the multiple rolls 1, at the same end of the multiple rolls 1, the first drive components 2 and the electric slip rings 7 are staggered, thereby making efficient use of space and saving installation volume.

[0069] In this example, the electrode production equipment of this application can be used to prepare dry electrodes. The electrode production equipment also includes a feeding mechanism, with multiple rollers 1 spaced apart, and a roller gap between each two adjacent rollers 1. The roller gap at one end can correspond to the feeding mechanism, which can feed powder into the roller gap at the end. The powder can be pressed into a film through the roller gap at the end, and then the film can be thinned to a preset thickness under the extrusion of multiple roller gaps in sequence. Finally, the film is laminated with aluminum foil in the last roller gap.

[0070] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0071] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A roller press device, characterized by, The roll pressing device comprises: a plurality of rollers, the plurality of rollers being arranged at intervals; a plurality of first driving assemblies, each of the first driving assemblies being drivingly connected to one end of one of the rollers, the first driving assemblies being adapted to drive the rollers to rotate; a plurality of electric slip rings, each of the electric slip rings being connected to one end of one of the rollers away from the first driving assembly; wherein, along the arrangement direction of the plurality of rollers, the first driving assemblies and the electric slip rings are arranged at the same end of the plurality of rollers in an interlaced manner.

2. The roller press device of claim 1, wherein, The first driving assembly comprises a frameless motor.

3. The roller press apparatus of claim 2, wherein, The first driving assembly further comprises a harmonic reducer, the frameless motor being drivingly connected to the roller through the harmonic reducer.

4. The roller press apparatus of claim 1, wherein The first driving assembly further comprises a flat key, the output end of the first driving assembly being connected to the roller through the flat key.

5. The roller press apparatus of claim 1, wherein The diameter of the roller is 150mm-250mm, and / or the width of the roller is 250mm-500mm.

6. The roller press apparatus of claim 1, wherein The roll pressing device further comprises a second driving assembly, each two adjacent rollers having a roll gap therebetween, the second driving assembly being capable of driving the rollers to move so as to adjust the width of each of the roll gaps.

7. The roller press apparatus of claim 6, wherein, The roll pressing device further comprises a plurality of bearing seats, each of the rollers being mounted to one of the bearing seats, two adjacent bearing seats being movably connected to each other, the second driving assembly being drivingly connected to the bearing seat at one end.

8. The roller press apparatus of claim 7, wherein, The second driving assembly comprises a driving member, the driving member being drivingly connected to the bearing seat through a floating joint.

9. The roller press apparatus of claim 8, wherein, The second driving assembly further comprises a connecting plate, one end of the connecting plate being connected to the bearing seat, and the other end of the connecting plate being connected to the floating joint.

10. The roller press apparatus of claim 9, wherein, The connecting plate is provided with a connecting groove, the floating joint being connected to the connecting plate through the connecting groove.

11. The roller press apparatus of claim 7, wherein, The roll pressing device further comprises a sliding member, the sliding member being provided with a sliding groove, one of the two adjacent bearing seats being slidingly connected to the sliding groove, the sliding member being capable of driving the bearing seat to slide, and the other bearing seat being fixedly connected to the sliding member.

12. The roller press apparatus of claim 11, wherein, The bearing seat is provided with a limiting block, the limiting block being slidingly arranged in the sliding groove.

13. An electrode production apparatus characterized by comprising: The roll pressing device comprises any one of claims 1-12.

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