Calendering equipment

Abstract

The invention discloses calendering equipment, and relates to the technical field of calendering. The calendering equipment comprises an equipment main body, and a fixed roller, a calendering roller and a direct pressing mechanism which are arranged on the equipment main body, and the fixed roller and the calendering roller are arranged in parallel in a first direction; the direct pressing mechanism is provided with at least two pressure rods arranged side by side, each pressure rod is parallel to the calendering roller, and the direct pressing mechanism is configured to drive the pressure rods to jointly press the side, away from the fixed roller, of the calendering roller in the first direction. The calendering equipment provided by the invention has a better calendering effect.

Description

Technical Field

[0001] The invention relates to the technical field of calendering, and in particular to a calendering device. Background Art

[0002] The calendering equipment is equipped with fixed rollers and calendering rollers arranged in parallel. The shear force between the two rollers is used to extrude and stretch the material so that the material is formed into a thin sheet product, such as the calendering lithium coating equipment used in the lithium battery industry.

[0003] In actual working process, the fixed roller usually maintains a stable state, while the calendering roller is prone to vibrate due to the reaction force of the extruded material. In addition, due to the different magnitudes of the forces acting on different areas in the axial direction, differential deformation is very likely to occur, which affects the calendering effect and causes problems such as poor uniformity of product thickness and substandard extension width. Summary of the invention

[0004] The object of the present invention is to provide a calendering device which has the characteristic of better calendering effect.

[0005] The embodiment of the present invention provides a technical solution:

[0006] A calendering device comprises a device body, and a fixed roller, a calendering roller and a direct pressing mechanism arranged on the device body, wherein the fixed roller and the calendering roller are arranged in parallel in a first direction;

[0007] The direct pressing mechanism has at least two pressure rods arranged in parallel, each of which is parallel to the calendering roller. The direct pressing mechanism is configured to drive each of the pressure rods to jointly press the calendering roller on the side away from the fixed roller in the first direction.

[0008] In an optional embodiment, at least two of the pressure bars are symmetrically arranged with respect to a plane defined by the axes of the fixed roller and the calendering roller.

[0009] In an optional embodiment, the direct pressing mechanism includes a moving component and a driving member, and the fixed roller, the calendering roller, the moving component and the driving member are arranged in sequence in the first direction;

[0010] The moving component is slidably arranged on the equipment body, and each pressure rod is rotatably arranged on a side of the moving component close to the calendering roller; the driving member is arranged on the equipment body, and is used to drive the moving component to slide close to or away from the calendering roller in the first direction.

[0011] In an optional embodiment, there are multiple driving members, and the multiple driving members are arranged in sequence in a direction parallel to the calendering roller, and at least one driving member is located between the two ends of the calendering roller.

[0012] In an alternative embodiment, at least two bearing groups are arranged in parallel on the moving assembly. Each bearing group includes a plurality of bearings arranged in sequence in a direction parallel to the pressure rod. The rotation center lines of the bearings are parallel to the pressure rod, and any one of the pressure rods is abutted by at least one of the bearing groups on the side facing away from the calender roll in the first direction.

[0013] In an alternative embodiment, the number of the pressure rods is two, and any one of the pressure rods is abutted by two of the bearing groups;

[0014] The plane determined by the axes of the two bearing groups abutting one of the pressure rods forms an angle of 90°-140° towards the calender roll with the plane determined by the axes of the two bearing groups abutting the other pressure rod.

[0015] In an alternative embodiment, the moving assembly includes a mounting seat slidably arranged on the equipment main body, and a plurality of bearing seats slidably arranged on the mounting seat. The plurality of bearing seats are arranged in sequence in a direction parallel to the pressure rod. At least two of the bearings are arranged in parallel on any one of the bearing seats, and different bearings on any one of the bearing seats participate in forming different bearing groups.

[0016] In an alternative embodiment, the moving assembly further includes a plurality of fine-tuning members. The plurality of fine-tuning members are all arranged on the mounting seat and respectively cooperate with the plurality of bearing seats. Any one of the fine-tuning members 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 alternative embodiment, a distance adjusting mechanism is further included. The distance adjusting mechanism is arranged on the equipment main body and cooperates with the fixed roll and / or the calender roll, and is used to adjust the distance between the fixed roll and the calender roll in the first direction.

[0018] In an alternative embodiment, a fixed motor and a calender motor are further included. The fixed motor is in transmission connection with the fixed roll and is used to drive the fixed roll to rotate; the calender motor is in transmission connection with the calender roll and is used to drive the calender roll to rotate.

[0019] Compared with the prior art, the calendering equipment provided by the present invention has a direct pressing mechanism with at least two pressure rods arranged in parallel. In actual application, the direct pressing mechanism drives each pressure rod to jointly press the side of the calendering roller away from the fixed roller in the first direction. On the one hand, uniform pressure is applied to different areas on the axis of the calendering roller to offset the reaction force exerted on the material extruded by the calendering roller, so that the calendering roller does not undergo local deformation; on the other hand, since the roller surface of the calendering roller is in an arc shape, at least two pressure rods can clamp the calendering roller, so that the calendering roller can maintain a stable state. It can be seen that the calendering equipment provided by the present invention can ensure that the extrusion force exerted on different areas of the material is stable and uniform, and can ensure that the uniformity of the thickness of the product and the extension width meet the standards. Therefore, the beneficial effects of the calendering equipment provided by the present invention include: having a better calendering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic structural diagram of a calendering device provided in an embodiment of the present invention at a viewing angle;

[0022] Figure 2 A schematic structural diagram of a calendering device provided in an embodiment of the present invention from another perspective;

[0023] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0024] Figure 4 for Figure 3 A magnified schematic diagram of the middle B area;

[0025] Figure 5 It is a schematic diagram of the relative positions of the fixed roller, the calendering roller and the two pressure rods;

[0026] Figure 6 It is a structural schematic diagram of the direct pressure mechanism;

[0027] Figure 7 It is a cross-sectional schematic diagram of the direct pressure mechanism.

[0028] Icons: 100 - Calendering equipment; 110 - Equipment main body; 120 - Fixed roller; 130 - Calendering roller; 140 - Direct pressure mechanism; 141 - Pressure rod; 142 - Driving part; 143 - Mounting seat; 144 - Bearing seat; 1441 - Through hole; 145 - Fine adjustment part; 146 - Bearing; 150 - Spacing adjustment mechanism; 160 - Fixed motor; 170 - Calendering motor; 180 - Fitting part. Detailed implementation mode

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention usually described and illustrated in the accompanying drawings here can 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 present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0031] It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the invention is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0033] In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. 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, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.

[0036] Example

[0037] Please refer to Figure 1 and Figure 2 , Figure 1 FIG. 1 is a schematic structural diagram of the calendering device 100 provided in this embodiment at a viewing angle. Figure 2 Shown is a schematic structural diagram of the calendering device 100 from another viewing angle.

[0038] The calendering device 100 provided in this embodiment is used for calendering lithium coating, that is, calendering a lithium strip onto a substrate, and specifically comprises a device body 110, a fixed roller 120, a calendering roller 130, a direct pressing mechanism 140, a distance adjusting mechanism 150, a fixed motor 160 and a calendering motor 170, wherein the fixed roller 120, the calendering roller 130, the direct pressing mechanism 140, the distance adjusting mechanism 150, the fixed motor 160 and the calendering motor 170 are all arranged on the device body 110.

[0039] The fixed roller 120 and the calendering roller 130 are arranged side by side in the first direction, and a gap is formed between the two for the material to pass through. 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; the direct pressing mechanism 140 is used to press the calendering roller 130 to prevent the calendering roller 130 from being deformed or vibrated by the reaction force of the extruded material; the distance adjustment mechanism 150 is used to adjust the distance between the fixed roller 120 and the calendering roller 130 to meet different calendering requirements.

[0040] In actual application, before calendering begins, the distance between the calendering roller 130 and the fixed roller 120 is adjusted by the distance adjustment mechanism 150 to facilitate the passage of the material. After the material passes through, the distance between the calendering roller 130 and the fixed roller 120 is adjusted again to meet the thickness requirement of calendering. Afterwards, the direct pressing mechanism 140 applies a pressing and holding action to the calendering roller 130 to ensure that the calendering roller 130 can maintain a stable state during the subsequent calendering process, thereby applying a uniform and stable extrusion force to different areas of the material. Afterwards, the fixed motor 160 and the calendering motor 170 are operated to drive the fixed roller 120 and the calendering roller 130 to rotate, thereby achieving calendering of the material.

[0041] Please refer to Figure 3 and Figure 4 , Figure 3 Shown Figure 2 The cross-sectional view of AA in the figure, Figure 4 Shown Figure 3 A magnified schematic diagram of area B.

[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 rods 141 arranged in parallel, and the two pressure rods 141 are parallel to the calendering roller 130. The direct pressing mechanism 140 is configured to drive the two pressure rods 141 to jointly press the calendering roller 130 on the side away from the fixed roller 120 in the first direction.

[0043] In fact, in this embodiment, the direct pressing mechanism 140 can drive the two pressure rods 141 to move in the first direction toward or away from the side of the calendering roller 130 away from the fixed roller 120, so as to apply a pressing effect to the calendering roller 130 or cancel the pressing effect on the calendering roller 130. In other embodiments, the number of the pressure rods 141 can also be greater than two, such as three, four or five.

[0044] It is understandable that in order to avoid obstruction to the rotation of the calendering roller 130, the pressure rod 141 in this embodiment is rotatably arranged on the direct pressing mechanism 140. During the rotation of the calendering roller 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 rod 141 is not less than the length of the calendering roller 130. In other words, the two ends of the pressure rod 141 are flush or protruding relative to the two ends of the calendering roller 130.

[0046] Please refer to Figure 5 , Figure 5 It is a schematic diagram showing the relative positions of the fixed roller 120 , the calendering roller 130 and the two pressure rods 141 .

[0047] Define the position where the distance between the calender roll 130 and the fixed roll 120 is the smallest as the extrusion point. In order to ensure that the pressure exerted by the two pressure rods 141 on the calender roll 130 can be evenly transmitted to the extrusion point to obtain a stable and reliable holding effect, in this embodiment, the two pressure rods 141 are symmetrically arranged with respect to the plane P determined by the axes of the fixed roll 120 and the calender roll 130.

[0048] The two pressure rods 141 hold the calender roll 130 in a clamping manner. The pressure exerted by the two pressure rods 141 on the calender roll 130 can be evenly transmitted to the extrusion point, so that the calender roll 130 can maintain a stable state, ensuring that the extrusion forces received by different regions of the material are stable and uniform, and ensuring the uniformity of the product thickness and the compliance of the extension width, thus obtaining a better calendering effect.

[0049] In another embodiment, if the number of the pressure rods 141 is an odd number greater than two, one pressure rod 141 is arranged in the plane P; if the number of the pressure rods 141 is an even number greater than two, the multiple pressure rods 141 are symmetrically distributed with respect to the plane P.

[0050] Please refer to Figure 6 and Figure 7 , Figure 6 as shown in the schematic structural diagram of the direct pressure mechanism 140, Figure 7 and the schematic cross-sectional view of the direct pressure mechanism 140.

[0051] In this embodiment, the direct pressure mechanism 140 includes a moving component and a driving member 142. The fixed roll 120, the calender roll 130, the moving component and the driving member 142 are arranged in sequence in the first direction. The moving component is slidably arranged on the equipment main body 110, and each pressure rod 141 is rotatably arranged on the side of the moving component close to the calender roll 130. The driving member 142 is arranged on the equipment main body 110 and is used to drive the moving component to slide close to or away from the calender roll 130 in the first direction.

[0052] After the material passes between the fixed roll 120 and the calender roll 130, the driving member 142 pushes the moving component to move close to the calender roll 130 in the first direction, thereby driving the two pressure rods 141 to move to hold the calender roll 130. Preferably, the driving member 142 in this embodiment is a servo hydraulic cylinder, and its hydraulic rod moves telescopically in the first direction. The size of the holding force applied to the calender roll 130 can be controlled by the servo hydraulic cylinder to meet different calendering requirements.

[0053] In the state of holding the calender roll 130, the driving member 142 exerts a thrust in the first direction on the moving component, realizing the linear conduction of the thrust in the first direction, enabling precise control of the size of the holding force, thereby obtaining a better holding effect and further improving the stability of the overall structure.

[0054] Considering that in practical applications, the magnitudes of the acting forces received by the pressure rod 141 at different axial positions may be different, which may lead to differences in the magnitudes of the holding forces received by different regions of the calender roll 130. To solve this problem, in this embodiment, the number of driving members 142 is multiple, and the multiple driving members 142 are arranged in sequence in a direction parallel to the calender roll 130, and at least one driving member 142 is located between the two ends of the calender roll 130.

[0055] Preferably, the multiple driving members 142 are arranged in sequence in a straight line direction parallel to the pressure rod 141 in the plane P, so as to form a linearly distributed pressure output. When the multiple driving members 142 work simultaneously, the thrust forces received by different positions on the axial direction of the pressure rod 141 can be made uniform, thereby ensuring that the holding forces received by different regions on the axial direction of the calender roll 130 are uniform.

[0056] On the other hand, in practical applications, the calendering requirements with different pressing degrees of different regions of the material can also be adapted by adjusting the magnitudes of the thrust forces output by different driving members 142. Moreover, this design can also relieve the limitation that the material can only be at the center of the gap between the fixed roll 120 and the calender roll 130, that is, the material can be biased towards any one end on the axial direction of the calender roll 130. In this case, only one or more driving members 142 corresponding to the end where the material is located need to be operated, and the driving members 142 at the other end can remain stopped, achieving the purpose of energy saving.

[0057] To further improve the uniformity of the holding force, in this embodiment, four bearing groups are arranged in parallel on the moving assembly. Each bearing group includes a plurality of bearings 146 arranged in sequence in a direction parallel to the pressure rod 141. The rotation center lines of the respective bearings 146 are parallel to the pressure rod 141, and one side of any pressure rod 141 facing away from the calender roll 130 in the first direction is abutted by two bearing groups.

[0058] It can be understood that the pressure rod 141 being abutted by the bearing group is actually being abutted by the rolling surfaces of the plurality of bearings 146 that make up the bearing 146. During the rotation of the calender roll 130 driving the pressure rod 141, the pressure rod 141 drives the corresponding plurality of bearings 146 that are abutted to rotate synchronously. For the calendering device 100 provided in this embodiment, the pressure rod 141 conducts the pressure action between the bearing 146 and the calender roll 130. On the one hand, it can prevent the bearing 146 from directly abutting against the calender roll 130 and causing damage to the surface of the calender roll 130. On the other hand, it can also uniformly transfer the pressure action to different parts of the calender roll 130, thereby obtaining a better calendering effect.

[0059] Since multiple bearings 146 that make up the same bearing group respectively abut against different regions of the pressure rod 141 in the axial direction, the uniformity of the acting forces transmitted from the driving member 142 to different positions on the pressure rod 141 is further improved, and the uniformity of the holding forces applied to different positions of the calender roll 130 is further improved. Moreover, since any pressure rod 141 is jointly abutted by two bearing groups, it is equivalent to the two bearing groups 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 obtaining a better calendering effect.

[0060] In another embodiment, the number of bearing groups can be adjusted according to actual application conditions. For example, each pressure rod 141 can be abutted by only one bearing group, or each pressure rod 141 can be abutted by three or more bearing groups.

[0061] As Figure 4 shown, in this embodiment, the plane determined by the axes of the two bearing groups that abut one of the pressure rods 141 forms an angle α facing the calender roll 130 with the plane determined by the axes of the two bearing groups that abut the other pressure rod 141. In order to obtain the best and most stable clamping effect, preferably, 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 moving assembly includes a mounting seat 143 slidably disposed on the equipment main body 110, and a plurality of bearing seats 144 slidably disposed on the mounting seat 143. The plurality of bearing seats 144 are arranged in sequence in a direction parallel to the pressure rod 141. Four bearings 146 are arranged in parallel 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 plurality of bearing seats 144 correspond one by one to form four bearing groups. The number of bearings 146 on any bearing seat 144 corresponds to the number of bearing groups. For example, if the number of bearing groups in another embodiment is two, then two bearings 146 are provided on any bearing seat 144.

[0064] The moving assembly further includes a plurality of fine-tuning members 145. The plurality of fine-tuning members 145 are all disposed on the mounting seat 143 and cooperate with the plurality of bearing seats 144 respectively. Any fine-tuning member 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.

[0065] Any bearing block 144 can slide relative to the mounting block 143 in the first direction by a certain stroke, so that the four bearings 146 on the corresponding bearing block 144 protrude more than the four bearings 146 on the remaining bearing blocks 144, so that the four bearings 146 on the remaining bearing blocks 144 do not contact the two pressure rods 141, thereby changing the force distribution of the two pressure rods 141. In practical applications, the force conditions of the two pressure rods 141 can be flexibly adjusted through a plurality of fine-tuning members 145, so as to adjust the magnitude of the holding force applied to different regions in the axial direction of the calender roll 130 to meet personalized calendering requirements.

[0066] For example, if the material has a calendering area and a non-calendering area, the fine-tuning member 145 cooperating with the bearing block 144 corresponding to the calendering area can be adjusted, so that one or more bearing blocks 144 corresponding to the calendering area protrude to a certain extent compared with the bearing blocks 144 corresponding to the non-calendering area, so that only the parts of the two pressure rods 141 corresponding to the calendering area are abutted by the bearings 146, and then the parts of the calender roll 130 corresponding to the calendering area are subjected to a holding action, so as to obtain a more ideal calendering effect.

[0067] Preferably, the fine-tuning member 145 in this embodiment is a bolt. The bolt extends in the first direction, and its screw rod is in threaded cooperation with the equipment main body 110, and the end far from the head abuts against the corresponding bearing block 144. In order to limit the bearing block 144 and ensure that the bearing block 144 can reset with the bolt, that is, can move away from the pressure rod 141 under the drive of the bolt, the bolt in this embodiment is of a hollow structure, and a through hole 1441 is provided through the position of the bearing block 144 corresponding to the bolt. Each bearing block 144 is also provided with a hanging member (not shown in the figure) that passes through the through hole 1441 and the bolt and hangs on the bolt head.

[0068] In addition, in this embodiment, two fitting members 180 are further provided on the two bearing blocks 144 at both ends of the arrangement queue of the plurality of bearing blocks 144. The two pressure rods 141 both straddle between the two fitting members 180, and both ends of any pressure rod 141 are in circumferential clearance fit with the two fitting members 180, so that the two pressure rods 141 can rotate under the drive of the calender roll 130.

[0069] The calendering equipment 100 provided in this embodiment has lower requirements for the strength of the calender roll 130 compared with the prior art, can use a calender roll 130 with a roll diameter less than 300 mm, and the calendering width and threading position of the material are no longer limited, and the applicable scenarios are more extensive. In the application scenario of calendering lithium after lithium coating, the lithium strip can be extruded to 2 μm - 5 μm and coated on the substrate, and can meet the wide-width ultra-thin calendering requirements of more than 300 mm.

[0070] In summary, the calendering device 100 provided in this embodiment has a better calendering effect, can meet the requirements of local differential calendering, and has a wider range of applicable scenarios. It can also control energy consumption according to calendering requirements, and has the characteristics of a more compact structure and lower cost.

[0071] The foregoing are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A calendering device, characterized in that, The device comprises an equipment body (110), and a fixed roller (120), a calendering roller (130) and a direct pressing mechanism (140) arranged on the equipment body (110), wherein the fixed roller (120) and the calendering roller (130) are arranged in parallel in a first direction; The direct pressing mechanism (140) has at least two pressure rods (141) arranged in parallel, each of the pressure rods (141) is parallel to the calendering roller (130), and the direct pressing mechanism (140) is configured to drive each of the pressure rods (141) to jointly press the calendering roller (130) on the side away from the fixed roller (120) in the first direction.

2. The calendering device according to claim 1, characterized in that, At least two of the pressure rods (141) are symmetrically arranged about a plane defined by the axes of the fixed roller (120) and the calendering roller (130).

3. The calendering device according to claim 1, characterized in that, The direct pressing mechanism (140) comprises a moving component and a driving component (142), and the fixed roller (120), the calendering roller (130), the moving component and the driving component (142) are arranged in sequence in the first direction; The moving component is slidably arranged on the equipment body (110), and each pressure rod (141) is rotatably arranged on a side of the moving component close to the calendering roller (130); the driving member (142) is arranged on the equipment body (110) and is used to drive the moving component to slide close to or away from the calendering roller (130) in the first direction.

4. The calendering device according to claim 3, characterized in that, There are multiple driving members (142), and the multiple driving members (142) are arranged in sequence in a direction parallel to the calendering roller (130), and at least one driving member (142) is located between the two ends of the calendering roller (130).

5. The calendering device according to claim 3, characterized in that, At least two bearing groups are arranged in parallel on the motion component, each of the bearing groups 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), and the side of any pressure rod (141) facing away from the calendering roller (130) in the first direction is supported by at least one of the bearing groups.

6. The calendering device according to claim 5, characterized in that, The number of the pressure rods (141) is two, and any of the pressure rods (141) is supported by two of the bearing groups; A plane defined by the axes of the two bearing groups that abut against one of the pressure rods (141) and a plane defined by the axes of the two bearing groups that abut against the other pressure rod (141) form an angle of 90°-140° toward the calendering roller (130).

7. The calendering device according to claim 5, characterized in that The moving component includes a mounting seat (143) slidably disposed on the device body (110), and a plurality of bearing seats (144) slidably disposed on the mounting seat (143). The plurality of bearing seats (144) are arranged in sequence in a direction parallel to the pressure rod (141). At least two of the bearings (146) are arranged in parallel on any of the bearing seats (144), and different ones of the bearings (146) on any of the bearing seats (144) participate in forming different bearing groups.

8. The calendering device according to claim 7, wherein, The moving component further includes a plurality of fine-tuning members (145). The plurality of fine-tuning members (145) are all disposed on the mounting seat (143) and respectively cooperate with the plurality of bearing seats (144). Any of the fine-tuning members (145) is used to drive the corresponding bearing seat (144) to move in the first direction relative to the remaining bearing seats (144) under force.

9. The calendering device according to claim 1, characterized in that, It further includes a distance adjusting mechanism (150). The distance adjusting mechanism (150) is disposed on the device body (110) and cooperates with the fixed roller (120) and / or the calender roller (130) to adjust the distance between the fixed roller (120) and the calender roller (130) in the first direction.

10. The calendering device according to claim 1, characterized in that, It further includes a fixed motor (160) and a calender motor (170). The fixed motor (160) is in transmission connection with the fixed roller (120) to drive the fixed roller (120) to rotate; the calender motor (170) is in transmission connection with the calender roller (130) to drive the calender roller (130) to rotate.

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