A calendering apparatus
By introducing a direct pressing mechanism and a clamping method with a pressure bar into the calendering equipment, the problem of vibration of the calendering roll due to reaction force was solved, achieving stable and uniform pressure on the calendering roll and improving the calendering effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANQI LITHIUM NEW ENERGY TECH RES (MEISHAN) CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-19
Smart Images
Figure CN224372409U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of calendering technology, and more specifically, to a calendering device. Background Technology
[0002] Calendering equipment is equipped with fixed rollers and calendering rollers arranged in parallel. It uses the shearing force between the two rollers to squeeze and stretch the material, so that the material is formed into thin sheet products, such as the calendering lithium coating equipment used in the lithium battery industry.
[0003] In actual operation, the fixed roller usually remains stable, while the calendering roller is prone to vibration due to the reaction force on the extruded material. Furthermore, because the magnitude of the force on different areas in the axial direction is different, differential deformation is very likely to occur, affecting the calendering effect and causing problems such as poor uniformity of product thickness and failure to meet the elongation width standards. Utility Model Content
[0004] The purpose of this invention is to provide a calendering device that has the advantage of better calendering effect.
[0005] The embodiments of this utility model provide a technical solution:
[0006] A calendering apparatus includes an apparatus body, and a fixed roller, a calendering roller, and a direct pressing mechanism disposed on the apparatus body, wherein the fixed roller and the calendering roller are arranged side by side in a first direction;
[0007] The direct pressing mechanism has at least two pressure bars arranged in parallel, each pressure bar being parallel to the calendering roll. The direct pressing mechanism is configured to drive each pressure bar to press the calendering roll together on the side away from the fixed roll in the first direction.
[0008] In an alternative embodiment, at least two of the pressure bars are arranged symmetrically about the plane defined by the axes of the fixed roll and the calendering roll.
[0009] In an optional embodiment, the direct pressing mechanism includes a motion component and a driving component, wherein the fixed roller, the calendering roller, the motion component and the driving component are arranged sequentially in the first direction;
[0010] The motion component is slidably disposed on the main body of the equipment, and each of the pressure rods is rotatably disposed on the side of the motion component near the calendering roll; the driving member is disposed on the main body of the equipment and is used to drive the motion component to slide closer to or further away from the calendering roll in the first direction.
[0011] In an optional embodiment, there are multiple driving members arranged sequentially in a direction parallel to the calendering roll, and at least one driving member is located between the two ends of the calendering roll.
[0012] In an optional embodiment, at least two bearing groups are arranged side by side on the motion component, each bearing group including a plurality of bearings arranged sequentially in a direction parallel to the pressure rod, the rotation center line of each bearing being parallel to the pressure rod, and any pressure rod on the side away from the calendering roll in the first direction being supported by at least one of the bearing groups.
[0013] In an optional embodiment, the number of pressure rods is two, and each pressure rod is supported by two of the bearing assemblies;
[0014] The plane defined by the axes of the two bearing assemblies abutting one of the pressure rods forms an angle of 90°-140° toward the calendering roll with the plane defined by the axes of the two bearing assemblies abutting the other pressure rod.
[0015] In an optional embodiment, the motion component includes a mounting base slidably disposed on the main body of the device, and a plurality of bearing seats slidably disposed on the mounting base. The plurality of bearing seats are arranged sequentially in a direction parallel to the pressure rod. At least two bearings are arranged side by side on any bearing seat, and different bearings on any bearing seat participate in forming different bearing groups.
[0016] In an optional embodiment, the motion component further includes a plurality of fine-tuning elements, each of which is disposed on the mounting base and respectively cooperates with a plurality of bearing seats. Any one of the fine-tuning elements is used to drive the corresponding bearing seat to move relative to the other bearing seats in the first direction under force.
[0017] In an optional embodiment, a spacing adjustment mechanism is further included. The spacing adjustment mechanism is disposed on the main body of the equipment and cooperates with the fixed roller and / or the calendering roller to adjust the spacing between the fixed roller and the calendering roller in the first direction.
[0018] In an optional embodiment, a fixed motor and a calendering motor are further included. The fixed motor is drivenly connected to the fixed roller and is used to drive the fixed roller to rotate. The calendering motor is drivenly connected to the calendering roller and is used to drive the calendering roller to rotate.
[0019] Compared to existing technologies, the calendering equipment provided by this invention features a direct pressing mechanism with at least two parallel pressure bars. In practical applications, the direct pressing mechanism drives each pressure bar to jointly press the calendering roll on the side opposite to the fixed roll in the first direction. This applies uniform pressure to different areas along the axial direction of the calendering roll, counteracting the reaction force exerted by the calendering roll on the material and preventing localized deformation of the calendering roll. Furthermore, because the calendering roll surface is arc-shaped, the at least two pressure bars clamp the calendering roll, maintaining its stability. Therefore, the calendering equipment provided by this invention ensures stable and uniform extrusion pressure on different areas of the material, guaranteeing uniform product thickness and achieving the required elongation width. Thus, the beneficial effects of the calendering equipment provided by this invention include improved calendering performance. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and therefore should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without any creative effort.
[0021] Figure 1 A schematic diagram of the calendering equipment provided in an embodiment of the present invention from one perspective;
[0022] Figure 2 A schematic diagram of the calendering equipment provided in an embodiment of this utility model from another perspective;
[0023] Figure 3 for Figure 2 Sectional view of AA;
[0024] Figure 4 for Figure 3 Enlarged view of region B in the middle;
[0025] Figure 5 This is a schematic diagram showing the relative positions of the fixed roll, the calendering roll, and the two pressure bars.
[0026] Figure 6 This is a schematic diagram of the direct pressure mechanism;
[0027] Figure 7 This is a cross-sectional schematic diagram of the direct pressure mechanism.
[0028] Icons: 100-Caulking equipment; 110-Equipment body; 120-Fixed roll; 130-Caulking roll; 140-Direct pressing mechanism; 141-Pressure rod; 142-Drive component; 143-Mounting base; 144-Bearing housing; 1441-Through hole; 145-Fine adjustment component; 146-Bearing; 150-Gap adjustment mechanism; 160-Fixed motor; 170-Caulking motor; 180-Matching component. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0031] 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 further defined and explained in subsequent figures.
[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0035] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0036] Example
[0037] Please refer to the following: Figure 1 and Figure 2 , Figure 1 The diagram shown is a structural schematic of the calendering equipment 100 provided in this embodiment from one perspective. Figure 2 The diagram shown is a structural schematic of the calendering equipment 100 from another perspective.
[0038] The calendering equipment 100 provided in this embodiment is used for calendering lithium coating, that is, calendering lithium strip onto a substrate. Specifically, it includes an equipment body 110, a fixed roller 120, a calendering roller 130, a direct pressing mechanism 140, a spacing adjustment mechanism 150, a fixed motor 160, and a calendering motor 170. The fixed roller 120, calendering roller 130, direct pressing mechanism 140, spacing adjustment mechanism 150, fixed motor 160, and calendering motor 170 are all mounted on the equipment body 110.
[0039] The fixed roller 120 and the calendering roller 130 are arranged side by side in the first direction, forming a gap between them for material to pass through. The fixed motor 160 is driven by the fixed roller 120 and is used to drive the fixed roller 120 to rotate. The calendering motor 170 is driven by the calendering roller 130 and is used to drive the calendering roller 130 to rotate. The direct pressing mechanism 140 is used to hold the calendering roller 130 to prevent the calendering roller 130 from deforming or vibrating due to the reaction force of the squeezed material. The spacing adjustment mechanism 150 is used to adjust the spacing between the fixed roller 120 and the calendering roller 130 to adapt to different calendering requirements.
[0040] In practical applications, before calendering begins, the distance between the calendering roll 130 and the fixed roll 120 is adjusted by the adjusting mechanism 150 to facilitate material passage. After the material passes through, the distance between the calendering roll 130 and the fixed roll 120 is adjusted again to meet the required calendering thickness. Then, the direct pressing mechanism 140 applies pressure to the calendering roll 130 to ensure it remains stable during subsequent calendering processes, thereby applying a uniform and stable extrusion force to different areas of the material. Afterward, the fixed motor 160 and the calendering motor 170 operate, driving the fixed roll 120 and the calendering roll 130 to rotate, thus achieving the calendering process of the material.
[0041] Please refer to the following: Figure 3 and Figure 4 , Figure 3 As shown Figure 2 Sectional view of AA, Figure 4 As shown Figure 3 Enlarged schematic diagram of region B in the middle.
[0042] Figure 3 The direction indicated by the X arrow is the first direction. In order to improve the calendering effect, in this embodiment, the direct pressing mechanism 140 has two pressure bars 141 arranged in parallel. Both pressure bars 141 are parallel to the calendering roll 130. The direct pressing mechanism 140 is configured to drive the two pressure bars 141 to jointly press the calendering roll 130 on the side away from the fixed roll 120 in the first direction.
[0043] In this embodiment, the direct pressure mechanism 140 can drive two pressure rods 141 to move closer to or further away from the side of the calender roll 130 away from the fixed roll 120 in a first direction, so as to apply a holding effect to the calender roll 130 or remove the holding effect on the calender roll 130. In another embodiment, the number of pressure rods 141 can be greater than two, such as three, four or five.
[0044] Understandably, in order to avoid obstructing the rotation of the calender roll 130, the pressure rod 141 in this embodiment is rotatably mounted on the direct pressure mechanism 140. During the rotation of the calender roll 130, the pressure rod 141 is driven to rotate synchronously in the opposite direction.
[0045] In order to adapt to different calendering width requirements, in this embodiment, the length of the pressure bar 141 is not less than the length of the calendering roll 130. In other words, the two ends of the pressure bar 141 are flush with or protrude from the two ends of the calendering roll 130, respectively.
[0046] Please refer to the following: Figure 5 , Figure 5 The diagram shows the relative positions of the fixed roller 120, the calendering roller 130, and the two pressure bars 141.
[0047] The point where the distance between the calendering roll 130 and the fixed roll 120 is minimized is defined as the extrusion point. In order to ensure that the pressure applied by the two pressure rods 141 to the calendering roll 130 can be uniformly transmitted to the extrusion point to obtain a stable and reliable pressing effect, in this embodiment, the two pressure rods 141 are symmetrically arranged about the plane P determined by the axis of the fixed roll 120 and the calendering roll 130.
[0048] The two pressure bars 141 clamp the calendering roll 130, and the pressure applied by the two pressure bars 141 to the calendering roll 130 can be evenly transmitted to the extrusion point, so that the calendering roll 130 can maintain a stable state, ensuring that the extrusion pressure on different areas of the material is stable and uniform, and ensuring that the thickness of the product is uniform and the elongation width meets the standard, thus obtaining a better calendering effect.
[0049] In another embodiment, if the number of pressure rods 141 is an odd number of two or more, then one pressure rod 141 is arranged in plane P; if the number of pressure rods 141 is an even number of two or more, then multiple pressure rods 141 can be symmetrically distributed about plane P.
[0050] Please refer to the following: Figure 6 and Figure 7 , Figure 6 The diagram shown is a structural schematic of the direct pressure mechanism 140. Figure 7 The diagram shown is a cross-sectional view of the direct pressure mechanism 140.
[0051] In this embodiment, the direct pressing mechanism 140 includes a motion component and a drive component 142. A fixed roller 120, a calendering roller 130, the motion component, and the drive component 142 are arranged sequentially in a first direction. The motion component is slidably mounted on the equipment body 110, and each pressure rod 141 is rotatably mounted on the side of the motion component near the calendering roller 130. The drive component 142 is mounted on the equipment body 110 and is used to drive the motion component to slide closer to or further away from the calendering roller 130 in the first direction.
[0052] After the material passes between the fixed roller 120 and the calendering roller 130, the drive unit 142 pushes the motion assembly to move closer to the calendering roller 130 along the first direction, thereby driving the two pressure rods 141 to move to press the calendering roller 130. Preferably, in this embodiment, the drive unit 142 is a servo hydraulic cylinder, whose hydraulic rod moves telescopically in the first direction. The servo hydraulic cylinder can control the magnitude of the pressing force applied to the calendering roller 130 to meet different calendering requirements.
[0053] While the calendering roller 130 is being held, the drive unit 142 applies a thrust in the first direction to the motion component, realizing the linear transmission of the thrust in the first direction. This allows for precise control of the magnitude of the holding force, resulting in a better holding effect and further improving the stability of the overall structure.
[0054] Considering that in practical applications, the magnitude of the force received by the driving member 142 at different axial positions of the pressure rod 141 may vary, resulting in differences in the holding force experienced by different areas of the calender roll 130, this embodiment addresses this issue by using multiple driving members 142 arranged sequentially in a direction parallel to the calender roll 130, with at least one driving member 142 positioned between the two ends of the calender roll 130.
[0055] Preferably, multiple drive members 142 are arranged sequentially in plane P along a straight line parallel to the pressure rod 141, thereby forming a linearly distributed pressure output. When multiple drive members 142 work simultaneously, the thrust force on different positions in the axial direction of the pressure rod 141 is uniform, thereby ensuring that the holding force on different areas in the axial direction of the calender roll 130 is uniform.
[0056] On the other hand, in practical applications, the thrust output of different drive components 142 can be adjusted to adapt to the different calendering requirements of different regions of the material. Furthermore, this design removes the restriction that the material can only be located at the center of the gap between the fixed roller 120 and the calendering roller 130. That is, the material can be biased towards any end of the calendering roller 130 along its axial direction. In this case, only one or more drive components 142 at the end corresponding to the material need to be operated, while the drive component 142 at the other end can remain stationary, thus saving energy.
[0057] To further improve the uniformity of the pressing force, in this embodiment, four bearing groups are arranged in parallel on the motion component. Each bearing group includes multiple bearings 146 arranged in sequence in a direction parallel to the pressure rod 141. The rotation center line of each bearing 146 is parallel to the pressure rod 141. Any pressure rod 141 on the side away from the calendering roller 130 in the first direction is supported by two bearing groups.
[0058] It is understandable that the pressure rod 141 is supported by the bearing assembly, which is actually supported by the wheel surfaces of the multiple bearings 146 that make up the bearing 146. During the rotation of the pressure rod 141 driven by the calendering roll 130, the pressure rod 141 drives the corresponding multiple bearings 146 to rotate synchronously. In the calendering equipment 100 provided in this embodiment, the pressure rod 141 transmits pressure between the bearings 146 and the calendering roll 130. On the one hand, this prevents the bearings 146 from directly abutting against the calendering roll 130 and causing damage to the surface of the calendering roll 130; on the other hand, it can also evenly transmit the pressure to different parts of the calendering roll 130, thereby obtaining a better calendering effect.
[0059] Since multiple bearings 146 forming the same bearing assembly abut against different regions of the pressure rod 141 in the axial direction, the uniformity of the force transmitted from the drive member 142 to different positions on the pressure rod 141 is further improved, and the uniformity of the holding force on different positions of the calender roll 130 is further improved. Furthermore, since any pressure rod 141 is supported by both bearing assemblies, it is equivalent to the two bearing assemblies clamping the pressure rod 141, ensuring that the pressure rod 141 can maintain a stable state, further improving the stability of the calender roll 130 during the calendering process and achieving a better calendering effect.
[0060] In another embodiment, the number of bearing assemblies can be adjusted according to the actual application conditions. For example, each pressure rod 141 may be supported by only one bearing assembly, or each pressure rod 141 may be supported by three or more bearing assemblies.
[0061] like Figure 4 As shown, in this embodiment, the plane defined by the axes of the two bearing assemblies supporting one of the pressure rods 141 forms an angle α with the plane defined by the axes of the two bearing assemblies supporting the other pressure rod 141, facing the calender roll 130. To obtain the optimal and most stable clamping effect, it is preferable that the angle α is between 90° and 140°, for example, the angle α can be 90°, 100°, 110°, 120°, 130°, or 140°, etc.
[0062] In this embodiment, the motion component includes a mounting base 143 slidably disposed on the device body 110, and a plurality of bearing seats 144 slidably disposed on the mounting base 143. The plurality of bearing seats 144 are arranged sequentially in a direction parallel to the pressure rod 141, and four bearings 146 are arranged side by side on any bearing seat 144. The four bearings 146 on any bearing seat 144 respectively participate in forming four bearing groups, and both pressure rods 141 pass through the plurality of bearing seats 144 in sequence.
[0063] In other words, the four bearings 146 on the multiple bearing housings 144 correspond one-to-one, forming four bearing groups. The number of bearings 146 on any bearing housing 144 corresponds to the number of bearing groups. For example, if the number of bearing groups is two in another embodiment, then two bearings 146 are provided on any bearing housing 144.
[0064] The motion assembly also includes multiple fine-tuning elements 145, which are all mounted on the mounting base 143 and cooperate with multiple bearing seats 144 respectively. Any fine-tuning element 145 is used to drive the corresponding bearing seat 144 to move relative to the other bearing seats 144 in a first direction when subjected to force.
[0065] Each bearing housing 144 can slide relative to the mounting base 143 by a certain stroke in the first direction, making the four bearings 146 on the corresponding bearing housing 144 more protruding than the four bearings 146 on the other bearing housings 144. This prevents the four bearings 146 on the other bearing housings 144 from contacting the two pressure rods 141, thereby changing the force distribution on the two pressure rods 141. In practical applications, the force on the two pressure rods 141 can be flexibly adjusted using multiple fine-tuning parts 145, thereby adjusting the magnitude of the holding force on different areas of the calender roll 130 in the axial direction to meet personalized calendering requirements.
[0066] For example, if the material has a calendering area and a non-calendering area, the fine-tuning component 145 that cooperates with the bearing seat 144 corresponding to the calendering area can be adjusted so that one or more bearing seats 144 corresponding to the calendering area protrude to a certain extent compared to the bearing seats 144 corresponding to the non-calendering area. This causes only the parts of the two pressure rods 141 corresponding to the calendering area to be supported by the bearings 146, thereby causing the parts of the calendering roller 130 corresponding to the calendering area to be subjected to pressure, thus obtaining a more ideal calendering effect.
[0067] Preferably, in this embodiment, the fine-tuning component 145 is a bolt. The bolt extends in the first direction, and its threaded shaft is threaded into the main body 110 of the device. The end away from the head abuts against the corresponding bearing seat 144. In order to limit the position of the bearing seat 144 and ensure that the bearing seat 144 can be reset with the bolt, that is, can move away from the pressure rod 141 under the action of the bolt, the bolt in this embodiment is a hollow structure. A through hole 1441 is provided on the bearing seat 144 at the position corresponding to the bolt. Each bearing seat 144 is also equipped with a hanging component (not shown in the figure) that passes through the through hole 1441 and hangs on the head of the bolt.
[0068] In addition, in this embodiment, two mating parts 180 are provided on two bearing seats 144 located at both ends of the multiple bearing seats 144 arrangement. Two pressure rods 141 are straddling the two mating parts 180, and both ends of any pressure rod 141 are circumferentially clearance-fitted with the two mating parts 180, so that the two pressure rods 141 can rotate under the drive of the calendering roller 130.
[0069] The calendering equipment 100 provided in this embodiment has lower strength requirements for the calendering rolls 130 compared to existing technologies, and can use calendering rolls 130 with a diameter of less than 300mm. Furthermore, the calendering width and insertion position of the material are no longer restricted, making it applicable to a wider range of scenarios. In lithium-coated calendering applications, it can extrude lithium strips to 2μm-5μm and coat them onto the substrate, meeting the requirements for ultra-thin calendering with a width of over 300mm.
[0070] In summary, the calendering equipment 100 provided in this embodiment has better calendering effect and can meet the needs of localized differentiated calendering, making it applicable to a wider range of scenarios. It can also control energy consumption according to calendering requirements and features a more compact structure and lower cost.
[0071] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A calendering apparatus characterized by, It includes a main body (110), and a fixed roller (120), a calendering roller (130) and a direct pressing mechanism (140) disposed on the main body (110), wherein the fixed roller (120) and the calendering roller (130) are arranged side by side in a first direction; The direct pressing mechanism (140) has at least two parallel pressure bars (141), each of which is parallel to the calendering roll (130). The direct pressing mechanism (140) is configured to drive each of the pressure bars (141) to press the calendering roll (130) on the side away from the fixed roll (120) in the first direction.
2. The calendering apparatus of claim 1, wherein At least two of the pressure bars (141) are arranged in a plane symmetrical about the axis of the fixed roller (120) and the calendering roller (130).
3. The calendering apparatus of claim 1, wherein, The direct pressing mechanism (140) includes a motion component and a drive component (142), and the fixed roller (120), the calendering roller (130), the motion component and the drive component (142) are arranged sequentially in the first direction; The motion component is slidably disposed on the equipment body (110), and each pressure rod (141) is rotatably disposed on the side of the motion component near the calendering roller (130); the driving member (142) is disposed on the equipment body (110) and is used to drive the motion component to slide closer to or further away from the calendering roller (130) in the first direction.
4. The calendering apparatus of claim 3, wherein The number of driving elements (142) is multiple, and the multiple driving elements (142) are arranged sequentially in a direction parallel to the calendering roll (130), and at least one driving element (142) is located between the two ends of the calendering roll (130).
5. The calendering apparatus of claim 3, wherein At least two bearing groups are arranged side by side on the motion component. Each bearing group includes a plurality of bearings (146) arranged in sequence in a direction parallel to the pressure rod (141). The rotation center line of each bearing (146) is parallel to the pressure rod (141). Any pressure rod (141) on the side away from the calendering roll (130) in the first direction is supported by at least one of the bearing groups.
6. The calendering apparatus of claim 5, wherein, The number of pressure rods (141) is two, and each pressure rod (141) is supported by two bearing assemblies; The plane defined by the axes of the two bearing assemblies that abut against one of the pressure rods (141) forms an angle of 90°-140° toward the calender roll (130) with the plane defined by the axes of the two bearing assemblies that abut against the other pressure rod (141).
7. The calendering apparatus of claim 5, wherein The motion component includes a mounting base (143) slidably disposed on the device body (110) and a plurality of bearing seats (144) slidably disposed on the mounting base (143). The plurality of bearing seats (144) are arranged sequentially in a direction parallel to the pressure rod (141). At least two bearings (146) are arranged side by side on any bearing seat (144), and different bearings (146) on any bearing seat (144) participate in forming different bearing groups.
8. The calendering apparatus of claim 7, wherein, The motion component also includes a plurality of fine-tuning elements (145), each of which is disposed on the mounting base (143) and cooperates with the plurality of bearing seats (144) respectively. Any fine-tuning element (145) is used to drive the corresponding bearing seat (144) to move relative to the other bearing seats (144) in the first direction under force.
9. The calendering apparatus of claim 1, wherein, It also includes a spacing adjustment mechanism (150), which is disposed on the main body of the equipment (110) and cooperates with the fixed roller (120) and / or the calendering roller (130) to adjust the spacing between the fixed roller (120) and the calendering roller (130) in the first direction.
10. The calendering apparatus of claim 1, wherein, It also includes a fixed motor (160) and a calendering motor (170). The fixed motor (160) is connected to the fixed roller (120) for driving the fixed roller (120) to rotate. The calendering motor (170) is connected to the calendering roller (130) for driving the calendering roller (130) to rotate.