CN219899638U

CN219899638U - Calendering device

Info

Publication number: CN219899638U
Application number: CN202320846370.1U
Authority: CN
Inventors: 刘嘉兵
Original assignee: Dongguan Songshanhu Jiatuo Intelligent Equipment Co ltd
Current assignee: Dongguan Songshanhu Jiatuo Intelligent Equipment Co ltd
Priority date: 2023-04-14
Filing date: 2023-04-14
Publication date: 2023-10-27
Anticipated expiration: 2033-04-14

Abstract

The utility model discloses a calendaring device, which comprises a calendaring mechanism, wherein the calendaring mechanism comprises a first calendaring roller and a second calendaring roller positioned below the first calendaring roller, two ends of the first calendaring roller are respectively and rotatably arranged in two driven supports, two ends of the first calendaring roller respectively extend out of the two driven supports, two ends of the second calendaring roller are respectively and rotatably arranged in two driving supports, two driven supports are respectively and fixedly arranged in two supports, the two driving supports are respectively and movably arranged in the two supports and respectively positioned below the two driven supports, a second calendaring roller is arranged on the driving support, the calendaring device further comprises a roll changing tool, the roll changing tool comprises a tool frame and a second calendaring roller sliding rail arranged on the tool frame, and the second calendaring roller sliding rail is used for being inserted into the two supports and matched with the second calendaring roller. The utility model has the advantages of convenient roll changing or maintenance, time saving and labor saving.

Description

Calendering device

Technical Field

The utility model relates to the technical field of lithium battery production, in particular to a calendaring device.

Background

The existing lithium metal pole piece is manufactured or supplemented with lithium by adopting a rolling method. The current roll-in device is usually including the first calender roll that is used for carrying out the calendering to the substrate and the second calender roll that is located first calender roll below, the both ends of first calender roll rotationally set up respectively in two driven support and the both ends of first calender roll stretch out outside two driven support respectively, the both ends of second calender roll rotationally set up respectively in two initiative supports and the both ends of second calender roll stretch out outside two initiative supports respectively, two initiative supports are fixed to be set up respectively in two supports, two initiative supports are movable set up respectively in two supports and are located the below of two initiative supports respectively, in order to guarantee not to warp at the in-process of calendering in reality, the weight of this second calender roll tends to be heavier. When the second calendaring roller needs to be replaced or maintained, auxiliary tools such as a forklift and a crane are usually needed to pull the second calendaring roller out of the two supports together with the two driving supports, so that time and labor are wasted, and roller replacement or maintenance is difficult.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides the calendaring device which is convenient to change rolls or maintain, and saves time and labor.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a calendering device, includes calendering roller mechanism, calendering roller mechanism includes first calendering roller and is located the second calendering roller of first calendering roller below, have the clearance between the roll surface of first calendering roller and the roll surface of second calendering roller, the both ends of first calendering roller rotationally set up respectively in two driven supports and the both ends of first calendering roller stretch out respectively outside two driven supports, the both ends of second calendering roller rotationally set up respectively in two initiative supports and the both ends of second calendering roller stretch out respectively outside two initiative supports, two driven supports are fixed respectively to be set up in two supports, two initiative supports are movable set up respectively in two supports and be located respectively the below of two driven supports, be equipped with second calendering roller gyro wheel on the initiative support, still include roll changing frock, roll changing frock includes work frame and sets up second calendering roller slide rail on the work frame, second calendering roller slide rail is arranged in inserting two initiative supports and is used for inserting in two the second calendering roller slide rail and two supports are close to each other with the second calendering roller is in the second calendering roller slide rail is in the second support and is in the second calendering roller slide rail is in the cooperation with the second calendering roller.

The beneficial effects of the utility model are as follows: according to the utility model, through the second calendaring roller and the roller changing tool, the second calendaring roller and the two driving supports are conveniently pulled out of the two supports, so that time and labor are saved, and roller changing or maintenance is convenient.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of the front side of a calendaring apparatus according to an embodiment of the utility model;

FIG. 2 is a schematic view of the calender apparatus of FIG. 1 with the roll changing tooling removed;

FIG. 3 is a schematic view of the calender apparatus of FIG. 1 with the roll changing tooling removed and the right active backing roll support;

FIG. 4 is a right side view of the calender apparatus of FIG. 1 with the roll change tooling removed;

FIG. 5 is a schematic cross-sectional view of the calender apparatus of FIG. 1 with the roll change tooling removed;

fig. 6 is a schematic structural view of a roll changing tool of the rolling device shown in fig. 1;

fig. 7 is a schematic structural view of the roll changing fixture with the active back roll slide rail inserted into two active back roll mounting positions and the second calender roll slide rail inserted into the right sides of two brackets;

fig. 8 is a schematic structural view of the left side of the active back roller slide rail inserted into the two active back roller mounting positions and the second calender roller slide rail inserted into the two brackets of the roller changing tool;

fig. 9 is a schematic view of a first slide, a wedge slide, and a second slide in an alternative to the calendaring apparatus shown in fig. 1.

Detailed Description

The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The technical features in the utility model can be interactively combined on the premise of no contradiction and conflict.

Referring to fig. 1 to 5, a calendaring apparatus according to an embodiment of the utility model includes a calendaring roller mechanism, a jacking system and a roller changing tool 70.

The calender roll mechanism includes a driven back roll 22, a driving back roll 23, a first calender roll 24, and a second calender roll 25. The driven back roller 22, the driving back roller 23, the first calendaring roller 24 and the second calendaring roller 25 are arranged in sequence from top to bottom. The first calender roll 24 is a driven calender roll, and the second calender roll 25 is a driving calender roll. The roller surfaces of the driven back roller 22, the driving back roller 23 and the first rolling roller 24 are sequentially contacted, and a gap is reserved between the roller surface of the first rolling roller 24 and the roller surface of the second rolling roller 25. The two driven supports 222 are fixedly disposed within the two brackets 12, respectively. Two brackets 12 are fixedly arranged on the base. The driven support 222 is provided with a driven back roller mounting position and a driving back roller mounting position 2222 penetrating through the inner side (the inner side, i.e., the side of the two driven supports 222 close to each other), the outer side (the outer side, i.e., the side of the two driven supports 222 away from each other), the inner side of the driven support 222 is provided with a first calender roller mounting position 2224a (see fig. 5), the first calender roller mounting position 2224a is communicated with the driving back roller mounting position 2222, and the first calender roller mounting position 2224a extends to the bottom end of the corresponding driven support 222. The bottom of initiative backing roll installation position 2222 is equipped with the recess, can dismantle in the recess and be provided with installation piece 2223, is equipped with the through-hole with first calender roll installation position 2224a intercommunication between the bottom of installation piece 2223 and recess. The left and right ends of the driven back roller 22 are rotatably provided in the driven back roller mounting positions of the two driven holders 222, respectively, by means of bearings or the like, for example, and the left and right ends of the driven back roller 22 extend out of the two driven back roller mounting positions, respectively, and are located outside the two brackets 12, respectively. The left and right ends of the driving back roller 23 are rotatably disposed in two driving back roller supports 232 (the driving back roller support 232 is a bearing seat), the two driving back roller supports 232 are movably disposed in driving back roller mounting positions 2222 of the two driven supports 222, and the left and right ends of the driving back roller 23 extend out of the two driving back roller supports 232 and are located outside the two brackets 12. The two first calender roll supports 242 are movably disposed in the first calender roll mounting positions 2224a of the two driven supports 222, the first calender roll supports 242 partially protrude from the bottom ends of the corresponding driven supports 222, two concave positions are respectively disposed on two sides (i.e., front side and rear side) of the first calender roll supports 242, two stop blocks 2224b (see fig. 5) are respectively disposed on two sides of the corresponding first calender roll supports 242 at the bottom ends of the driven supports 222, one ends of the two stop blocks 2224b close to each other are respectively matched with the two concave positions, and the two stop blocks 2224b can limit the corresponding first calender roll supports 242 to prevent the corresponding first calender roll supports 242 from moving downwards. The left and right ends of the first calender roll 24 are rotatably disposed in two first calender roll holders 242 (the first calender roll holders 242 are bearing seats), and the left and right ends of the first calender roll 24 extend out of the two first calender roll holders 242 respectively and pass through corresponding through holes respectively and are located outside the two brackets 12 respectively. The two driving supports 252 are movably disposed in the two brackets 12 respectively and located below the two driven supports 222 respectively, and a gap is formed between the two driving supports and the two driven supports 222 respectively. The active support 252 is provided with a second calender roll mounting site extending through the inside and outside thereof. The left and right ends of the second calender roll 25 are rotatably disposed in the second calender roll mounting positions of the two active supports 252 by bearings or the like, respectively, and the left and right ends of the second calender roll 25 extend out of the two second calender roll mounting positions, respectively, and are located outside the two brackets 12, respectively.

The radius of the first calendaring roll 24 is smaller than the radius of the driving back roll 23 and the second calendaring roll 25, the radius of the driving back roll 23 is smaller than the radius of the second calendaring roll 25, and the radius of the driven back roll 22 is preferably equal to the radius of the second calendaring roll 25. The left end of the driving back roller 23 is connected with a driving back roller driving unit through a coupler, the driving back roller driving unit is arranged on the outer side of a driven support 222 positioned at the left side, and the driving back roller driving unit is used for driving the driving back roller 23 to rotate. The left end of the second calender roll 25 is connected with a second calender roll driving unit through a coupling, the second calender roll driving unit is arranged on the outer side of the driving support 252 positioned at the left side, and the second calender roll driving unit is used for driving the second calender roll 25 to rotate. The driving back roller 23 and the second rolling roller 25 are driving rollers, the driven back roller 22 and the first rolling roller 24 are driven rollers, the driving back roller 23 can rotate the first rolling roller 24 and the driven back roller 22 synchronously along opposite directions, namely, the rotation direction of the driving back roller 23 is opposite to the rotation direction of the first rolling roller 24 and the driven back roller 22, and the rotation direction of the driving back roller 23 is identical to the rotation direction of the second rolling roller 25, namely, the rotation direction of the first rolling roller 24 and the driven back roller 22 is opposite to the rotation direction of the second rolling roller 25. For example, the driving back roller 23 and the second calender roller 25 rotate in the clockwise direction, and the first calender roller 24 and the driven back roller 22 rotate in the counterclockwise direction. The two driving supports 252 can move up and down relative to the two brackets 12 respectively, and the up and down movement of the two driving supports 252 can drive the second calendaring rollers 25 to move together. The jacking system is located below the second calendaring roller 25 and is used for driving the two driving supports 252 to move up and down relative to the two supports 12, so that the second calendaring roller 25 can be driven to move up and down, and the second calendaring roller 25 is driven to move up, so that pressure can be exerted upwards through the second calendaring roller 25, and calendaring pressure can be provided.

In practical application, the first substrate, the second substrate and the third substrate can respectively enter into the gap between the roller surfaces of the first calendaring roller 24 and the second calendaring roller 25, the first substrate and the second substrate comprise a traction film and a lithium foil attached to the traction film, the third substrate is a transfer film, the driving back roller 23 is driven to rotate by the driving back roller driving unit, the second calendaring roller driving unit drives the second calendaring roller 25 to rotate, and accordingly the first calendaring roller 24 and the driven back roller 22 can be driven to synchronously rotate in opposite directions, and accordingly the first substrate, the second substrate and the third substrate entering into the gap between the roller surfaces of the first calendaring roller 24 and the second calendaring roller 25 can be calendared, and accordingly lithium foils of the first substrate and the second substrate can be continuously and uniformly quantitatively transfer-printed on two sides of the transfer film, and a composite lithium metal pole piece can be formed. In the utility model, the first rolling roller 24 is arranged between the driving back roller 23 and the second rolling roller 25, and the radius of the first rolling roller 24 is smaller than that of the second rolling roller 25, so that a speed difference is generated between the first rolling roller 24 and the second rolling roller 25, and stronger rolling force can be formed under the combined action of the shearing force generated by the speed difference and the rolling pressure provided by the jacking system driving the second rolling roller 25 to move upwards, thereby realizing the production of a wider-range pole piece and reducing the cost. The driven back roller 22 plays a role in strengthening, and the deformation of the driving back roller 23 and the first calendaring roller 24 under the pressing action of the second calendaring roller 25 is avoided.

In this embodiment, the driving back roller driving unit includes a driving back roller motor 2332 and a driving back roller speed reducer 2333, the driving back roller motor 2332 is disposed on the driving back roller speed reducer 2333, and the driving back roller speed reducer 2333 is disposed on the outer side of the driven support 222 located in the left direction through a fastener such as a screw, so as to facilitate disassembly and assembly. The left end of the driving back roller 23 is connected with a driving back roller speed reducer 2333 through a coupler, the disassembly and assembly of the coupler are convenient, and the driving back roller motor 2332 drives the driving back roller 23 to rotate through the driving back roller speed reducer 2333. The second calender roll driving unit includes an active calender roll motor 2532 and an active calender roll speed reducer 2533, the active calender roll motor 2532 is disposed on the active calender roll speed reducer 2533, and the active calender roll speed reducer 2533 is disposed on the outer side of the active support 252 located in the left through fasteners such as screws, and is convenient to disassemble and assemble. The left end of second calender roll 25 is connected with initiative calender roll speed reducer 2533 through the shaft coupling, and through the shaft coupling easy dismounting who sets up, initiative calender roll motor 2532 passes through initiative calender roll speed reducer 2533 and drives second calender roll 25 and rotate.

The right end of the driving back roller 23 is provided with a first rotary joint 26a, and a first oil path channel is arranged in the driving back roller 23 and is communicated with the first rotary joint 26 a. The driving back roller 23 is kept constant by introducing temperature control oil into the first oil path inside the driving back roller 23 through the first rotary joint 26a, so that the temperature of the roller surface of the driving back roller 23 is kept constant, and the calendaring quality is ensured.

The structure of the oil passage of the second calender roll 25 is the same as that of the active back roll 23, and will not be described here again.

Two second rotary joints 26b are respectively arranged at the left end and the right end of the first calendaring roll 24, a second oil path channel is arranged in the first calendaring roll 24, and the second oil path channel is respectively communicated with the two second rotary joints 26 b. The first calendaring roll 24 can maintain constant temperature by introducing temperature control oil into the second oil path inside the first calendaring roll through the second rotary joint 26b, so that the temperature of the roll surface of the first calendaring roll 24 is kept constant, and the calendaring quality is ensured.

The jacking system comprises two jacking driving units, wherein the jacking driving units are hydraulic cylinders 32, and the two hydraulic cylinders 32 are respectively arranged at the bottoms of the two brackets 12. In this embodiment, specifically, the output ends of the two hydraulic cylinders 32 are respectively provided with first mounting holes, the bottom ends of the two hydraulic cylinders 32 are provided with second mounting holes, fasteners such as bolts and the like are installed in the first mounting holes and the corresponding second mounting holes, so that the output ends of the two hydraulic cylinders 32 are respectively connected with the two active supports 252 through the fasteners such as bolts and the like, and the output ends of the hydraulic cylinders 32 and the corresponding active supports 252 can be detached through detaching the bolts. Two pressure sensors 33 are respectively arranged between the output ends of the two hydraulic cylinders 32 and the two active supports 252, and the two pressure sensors 33 are respectively arranged at the bottom ends of the two active supports 252. The two hydraulic cylinders 32 are respectively used for driving the two driving supports 252 to move up and down relative to the two brackets 12, so that the second calendaring roller 25 and the first rotary joint 26a of the second calendaring roller 25 can be driven to move up and down. The pressure sensor 33 is for detecting the pressure of the upward pressing of the second reduction roller 25.

Further, the two driving backing roller supports 232 can move left and right relative to the two driven supports 222, respectively, and the movement of the two driving backing roller supports 232 can drive the driving backing roller 23 and the first rotary joint 26a of the driving backing roller 23 to move together. The two driving supports 252 can move left and right relative to the two brackets 12 respectively, and the left and right movement of the two driving supports 252 can drive the second calendaring roller 25 and the first rotary joint 26a of the second calendaring roller 25 to move together. As shown in fig. 6, the roll changing tool 70 includes a tool frame 72, a driving back roll slide rail 73 and a second calender roll slide rail 74, which are disposed on the tool frame 72. In this embodiment, the tool frame 72 includes an upper half portion and a lower half portion, the second calender roll sliding rail 74 is disposed at the top end of the lower half portion, the second calender roll sliding rail 74 partially protrudes from the left side of the tool frame 72, the upper half portion is disposed at the top end of the second calender roll sliding rail 74, the active back roll sliding rail 73 is disposed at the top end of the upper half portion, and the active back roll sliding rail 73 partially protrudes from the left side of the tool frame 72. The active back roller support 232 is provided with an active back roller 2322, the active support 252 is provided with a second calendaring roller 2522, the active back roller rail 73 is configured to be inserted into the two active back roller mounting positions 2222 and configured to cooperate with the active back roller 2322 of the two active back roller supports 232, the active back roller 2322 is slidable along the active back roller rail 73, the second calendaring roller rail 74 is configured to be inserted into the two brackets 12 and configured to cooperate with the second calendaring roller 2522 of the active support 252, and the second calendaring roller 2522 is configured to be slidable along the second calendaring roller rail 74. When the active back roller rail 73 is inserted into the two active back roller mounting positions 2222 and is matched with the active back roller rollers 2322 of the two active back roller supports 232, the active back roller 23, the two active back roller supports 232 and the first rotary joint 26a of the active back roller 23 can be pulled out of the two brackets 12 along the active back roller rail 73 by pulling the right end of the active back roller 23 towards the direction approaching the tool frame 72 under the action of the active back roller rollers 2322. When the second calender roll slide rail 74 is inserted into the two brackets 12 and is engaged with the second calender roll roller 2522 of the active support 252, the second calender roll 25, the two active supports 252, and the first rotary joint 26a of the second calender roll 25 can be pulled out of the two brackets 12 along the second calender roll slide rail 74 by pulling one end of the second calender roll 25 in a direction approaching the tool frame 72 under the action of the second calender roll roller 2522. In this embodiment, two driving back roller sliding rails 73 are provided, two driving back roller sliding rails 73 are arranged side by side in front and back, two second calendaring roller sliding rails 74 are provided, and two second calendaring roller sliding rails 74 are arranged side by side in front and back. The number of active back roller rollers 2322 of each active back roller support 232 corresponds to the number of active back roller sliding rails 73, and the number of second calendaring roller rollers 2522 of each active support 252 corresponds to the number of second calendaring roller sliding rails 74, and is also two, and it is understood that the number of active back roller sliding rails 73, active back roller rollers 2322, second calendaring roller sliding rails 74, and second calendaring roller rollers 2522 can be set according to practical situations.

In this embodiment, two notches are respectively disposed on the front side and the rear side of the active back roller support 232, and two active back roller rollers 2322 are respectively disposed at the bottoms of the two notches. Two second calender roll rollers 2522 are respectively disposed at bottom ends of the corresponding active supports 252.

In this embodiment, the groove that initiative backing roll mount position 2222 bottom set up is the T form, the shape of installation piece 2223 and the shape looks adaptation of groove, also be the T form, the installation piece 2223 is equipped with first mounting hole, the bottom of recess is equipped with the second mounting hole, install fastener such as bolt etc. in first mounting hole and the second mounting hole and establish, can dismantle installation piece 2223 from the recess through dismantling the bolt, because the weight of first calender roll 24 is lighter, in practical application, after the installation piece 2223 is dismantled, can pull out first calender roll 24 through artificial mode, two first calender roll supports 242, the second rotary joint 26b of first calender roll 24 to the outside of two supports 12. The bottom of installation piece 2223 is equipped with first semicircle orifice, and the bottom of recess is equipped with the second semicircle orifice, and first semicircle orifice and second semicircle orifice form foretell through-hole.

The outer sides of the driven supports 222 are respectively provided with two first support baffles 2224 at positions corresponding to the front side and the rear side of the driving back roller support 232, and the two first support baffles 2224 respectively abut against the front side and the rear side of the corresponding driving back roller support 232, so that the left-right movement of the two driving back roller supports 232 can be limited through the two first support baffles 2224. The first support baffle 2224 is detachable, and specifically, the first support baffle 2224 is provided with a first support waist hole 22242, and the length direction of the first support waist hole 22242 is perpendicular to the axial direction of the active back roller 23. The outside of the driven support 222 is provided with a first support mounting hole corresponding to the first support waist hole 22242, and first support fasteners such as bolts and the like are mounted in the first support waist hole 22242 and the corresponding first support mounting hole, and the number of the first support waist hole 22242 and the first support round holes can be set according to practical situations. By installing the first support fasteners at different positions in the first support waist holes 22242, the first support baffle 2224 can be moved in a direction away from the active back roller support 232, so that the first support baffle 2224 can not limit the active back roller support 232, and when the right end of the active back roller 23 is detached from the active back roller speed reducer 2333, the two active back roller supports 232, the active back roller 23 and the first rotary joint 26a of the active back roller 23 can be pulled out of the two brackets 12, thereby realizing the operation of replacing the active back roller 23 or maintaining the active back roller 23. It will be appreciated that by removing the first mount fasteners, the corresponding first mount baffle 2224 can be removed from the corresponding driven mount 222, as well as the replacement of the active back roller 23 or maintenance of the active back roller 23.

The outer ends of the brackets 12 are respectively provided with two second support baffles 122 at positions corresponding to the front side and the rear side of the active support 252. The two second support baffles 122 respectively abut against the front side and the rear side of the corresponding active support 252, so that the two active supports 252 can be limited in left-right movement by the two second support baffles 122. The second support baffle 122 is detachable, and specifically, the second support baffle 122 is provided with a second support waist hole 1222, and the length direction of the second support waist hole 1222 is perpendicular to the axial direction of the second calender roll 25. The outer end of the bracket 12 is provided with a second support circular hole corresponding to the second support waist hole 1222, and second support fasteners such as bolts and the like are installed in the second support waist hole 1222 and the corresponding second support circular hole. The number of the second support waist holes 1222 and the second support round holes may be set according to actual conditions. By installing the second support fasteners at different positions in the second support waist holes 1222, the second support baffle 122 can be moved in a direction away from the active support 252, so that the second support baffle 122 will not limit the active support 252, and when the right end of the second calender roll 25 is detached from the active calender roll speed reducer 2533, the two active supports 252, the second calender roll 25 and the first rotary joint 26a of the second calender roll 25 can be pulled out of the two brackets 12, thereby realizing the operations of replacing the second calender roll 25 or maintaining the second calender roll 25. It will be appreciated that by removing the second mount fasteners, the corresponding second mount baffle 122 may also be removed from the corresponding bracket 12, again allowing for replacement of the second calender roll 25 or maintenance of the second calender roll 25.

The outside of the driven support 222 is provided with a connector 2225 at a position below the driving back roller mounting position 2222, the connector 2225 is provided with a connector mounting hole, the driving back roller sliding rail 73 is provided with a driving back roller sliding rail mounting hole 732 corresponding to the connector mounting hole, when the driving back roller sliding rail 73 is inserted into the two driving back roller mounting positions 2222, an upper layer connecting fastener such as a bolt or the like can be installed in the driving back roller sliding rail mounting hole 732 and the corresponding connector mounting hole, and thus the driving back roller sliding rail 73 and the connector 2225 can be installed together through the upper layer connecting fastener. The bottom in the brackets 12 is provided with bracket mounting holes, the second calender roll slide rail 74 is provided with calender roll slide rail mounting holes 742 corresponding to the bracket mounting holes, and when the second calender roll slide rail 74 is inserted into the two brackets 12, lower-layer connecting fasteners such as bolts or the like can be mounted in the bracket mounting holes and the calender roll slide rail mounting holes 742, so that the second calender roll slide rail 74 and the bottom in the two brackets 12 can be mounted together by the lower-layer connecting fasteners such as bolts. The number of the connecting members 2225 corresponds to the number of the active back roller sliding rails 73, and two support mounting holes of each support 12 are provided. The number of the connecting piece mounting holes, the driving back roller sliding rail mounting holes 732, the calendaring roller sliding rail mounting holes 742 and the bracket mounting holes can be set according to practical situations.

The front side and the rear side of the active support 252 are respectively provided with two first sliding plates 2523, the two first sliding plates 2523 are respectively in sliding fit with two second sliding plates 123, and the two second sliding plates 123 are respectively arranged on the front side inner wall and the rear side inner wall of the corresponding bracket 12. In this embodiment, the first slide plate 2523 and the second slide plate 123 are rectangular slide plates, and the surfaces of the first slide plate 2523 and the second slide plate 123 in sliding fit are rectangular surfaces. It will be appreciated that in other embodiments, the first slide 2523 and the second slide 123 are wedge-shaped slides, wherein a first inclined surface is provided on a side of the first slide 2523 adjacent to the second slide 123, and a second inclined surface is provided on a side of the second slide 123 adjacent to the first slide 2523, and the first inclined surface and the second inclined surface are slidably engaged.

With the above-described structure, when the active back roller 23 and the second calender roller 25 need to be replaced or maintained, the active back roller driving unit and the second calender roller driving unit are detached. The roll changing tooling 70 is then moved to a position to the right of the base with the active back roll rail 73 inserted into the two active back roll mounting locations 2222 and the second calender roll rail 74 inserted into the two brackets 12 with the active back roll rollers 2322 resting on the corresponding active back roll rail 73 and the second calender roll rollers 2522 resting on the corresponding second calender roll rail 74, as shown in fig. 7 and 8. The connectors 2225 of the two driven brackets 222 are then respectively mounted with the driving back roller rail 73 to secure the driving back roller rail 73, and the second calender roller rail 74 is mounted with the bottoms of the two brackets 12 to secure the second calender roller rail 74. The output ends of the two hydraulic cylinders 32 and the two active mounts 252 are then disassembled, the first mount fasteners and the second mount fasteners are simultaneously unscrewed, the first mount stop 2224 and the second mount stop 122 are then moved to a position where they cannot withstand the active backing roll mounts 232 and 252, and the first mount fasteners and the second mount fasteners are then tightened. Then, the right end of the active back roller 23 and the right end of the second calendaring roller 25 are pulled manually, so that the active back roller 23, the two active back roller supports 232 and the first rotary joints 26a of the active back roller 23 can be pulled out of the two brackets 12 along the active back roller sliding rail 73, and the second calendaring roller 25, the two active supports 252 and the first rotary joints 26a of the second calendaring roller 25 can be pulled out of the two brackets 12 along the second calendaring roller sliding rail 74, and then the active back roller 23 and the second calendaring roller 25 can be replaced or maintained, and then the mounting blocks 2223 are detached from the grooves, and then the first calendaring roller 24, the two first calendaring roller supports 242 and the second rotary joints 26b of the first calendaring roller 24 can be pulled out of the two brackets 12 from the active back roller mounting positions 2222 manually, so that the first calendaring roller 24 can be replaced or maintained. The driving back roller 2322, the second calendaring roller 2522 and the roller replacing tool 70 are arranged, so that the driving back roller 23 and the two driving back roller supports 232 are conveniently pulled out of the two brackets 12, the second calendaring roller 25 and the two driving supports 252 are conveniently pulled out of the two brackets 12, time and labor are saved, and replacement operation or maintenance operation of the driving back roller 23 and the second calendaring roller 25 is conveniently carried out; the first calendaring roller 24 and the two first calendaring roller supports 242 are conveniently pulled out of the two brackets 12 through the arranged mounting blocks 2223 and grooves, so that the first calendaring roller 24 is conveniently subjected to replacement operation or maintenance operation; the second calender roll 25 and the two active supports 252 are facilitated to move along the second calender roll slide 74 and to move up and down by the first slide 2523 being in sliding engagement with the corresponding second slide 123.

In an alternative, as shown in fig. 9, a wedge sled 1232 is provided between a first sled 2523 and a corresponding second sled 123, one side of the second sled 123 adjacent to the wedge sled 1232 has a first sled ramp, one side of the wedge sled 1232 is disposed on the first sled 2523, and the other side has a second sled ramp in sliding engagement with the first sled ramp. Preferably, the first slide plate inclined surface is inclined upward in a direction approaching the second calender roll 25, and the second slide plate inclined surface is inclined downward in a direction departing from the second calender roll 25. By means of the wedge-shaped sliding plate 1232, gaps between the active support 252 and the front side inner wall and the rear side inner wall of the bracket 12 can be adjusted, integral installation of the second calendaring roller 25 is facilitated, and meanwhile, active supports 252 with different width sizes can be adapted.

While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and the equivalent modifications or substitutions are included in the scope of the present utility model as defined in the appended claims.

Claims

1. The rolling device comprises a rolling roller mechanism, wherein the rolling roller mechanism comprises a first rolling roller and a second rolling roller positioned below the first rolling roller, a gap is reserved between the roller surface of the first rolling roller and the roller surface of the second rolling roller, two ends of the first rolling roller are respectively and rotatably arranged in two driven supports, two ends of the first rolling roller respectively extend out of the two driven supports, two ends of the second rolling roller are respectively and rotatably arranged in two driving supports, two ends of the second rolling roller respectively extend out of the two driving supports, the two driven supports are respectively and fixedly arranged in two supports, the two driving supports are respectively and movably arranged in the two supports and respectively positioned below the two driven supports,

the driving support is provided with a second rolling roller, the driving support is further provided with a roller changing tool, the roller changing tool comprises a tool frame and a second rolling roller sliding rail arranged on the tool frame, the second rolling roller sliding rail is used for being inserted into the two supports and matched with the second rolling roller, the second rolling roller can slide along the second rolling roller sliding rail, when the second rolling roller sliding rail is inserted into the two supports and matched with the second rolling roller, one end of the second rolling roller is pulled in the direction close to the tool frame, and the second rolling roller and the two driving supports can be pulled out of the two supports along the second rolling roller sliding rail under the action of the second rolling roller.

2. The calendaring apparatus of claim 1, wherein the first calendaring roller is a driven calendaring roller and the second calendaring roller is a driving calendaring roller; the calendaring roller mechanism further comprises an active back roller located above the first calendaring roller, the roller surface of the active back roller is in contact with the roller surface of the first calendaring roller, two ends of the active back roller are respectively rotatably arranged in two active back roller supports, two ends of the active back roller respectively extend out of the two active back roller supports, the two active back roller supports are respectively movably arranged in active back roller installation positions of the two driven supports, active back roller rollers are arranged on the active back roller supports, the roller changing tool further comprises active back roller sliding rails arranged on the tool frame, the active back roller sliding rails are used for being inserted into active back roller installation positions of the two driven supports and matched with the active back roller rollers, the active back roller sliding rails can slide along the active back roller sliding rails, when the active back roller sliding rails are inserted into the two active back roller installation positions and matched with the active back roller rollers, the active back roller sliding rails can pull the active back roller supporting rails to the two active back roller supports along the outer sides of the active back roller supporting rails by pulling the active back roller supporting rails towards the direction close to one ends of the tool frame.

3. The calendaring apparatus according to claim 2, wherein a connecting piece is provided on the outer side of the driven support at a position below the driving back roller mounting position, when the driving back roller slide rail is inserted into the driving back roller mounting positions of the two driven supports, the driving back roller slide rail and the connecting piece are mounted together by an upper layer connecting fastener, and when the driving calendaring roller slide rail is inserted into the two brackets, the driving calendaring roller slide rail and the bottoms in the two brackets are mounted together by a lower layer connecting fastener.

4. The calendaring device according to claim 2, wherein two first support baffles are respectively arranged on the outer sides of the driven support at positions corresponding to two sides of the driving back roller support, the two first support baffles are respectively propped against two sides of the corresponding driving back roller support, the first support baffles are detachable, two second support baffles are respectively arranged on the outer ends of the support at positions corresponding to two sides of the driving support, the two second support baffles are respectively propped against two sides of the corresponding driving support, and the second support baffles are detachable.

5. The calendaring device according to claim 1, wherein two first sliding plates are respectively arranged on two sides of the active support, two second sliding plates are respectively arranged on two inner walls of the two sides of the support, and the two first sliding plates are respectively in sliding fit with the two second sliding plates of the corresponding support.

6. The calendaring apparatus of claim 5, wherein a wedge shaped slide is provided between the first slide and a corresponding second slide, a side of the second slide adjacent to the wedge shaped slide having a first slide ramp, one side of the wedge shaped slide being disposed on the first slide and the other side having a second slide ramp in sliding engagement with the first slide ramp.

7. The calendaring apparatus of claim 2, wherein the radius of the first calendaring roller is less than the radius of the second calendaring roller.

8. The calendaring device according to claim 2, wherein one end of the active back roller and one end of the second calendaring roller are respectively connected with an active back roller driving unit and a second calendaring roller driving unit through a coupling, the active back roller driving unit is used for driving the active back roller to rotate, and the second calendaring roller driving unit is used for driving the second calendaring roller to rotate.

9. The calendaring apparatus according to claim 2, further comprising a jacking system under the second calendaring roller, wherein the jacking system comprises two jacking driving units, the two jacking driving units are respectively arranged at the bottoms of the two brackets, the two jacking driving units are respectively detachably connected with the two driving supports, and the two jacking driving units are respectively used for driving the two driving supports to respectively move up and down relative to the two brackets, so that the second calendaring roller can be driven to move up and down; two pressure sensors are respectively arranged between the two jacking driving units and the two driving supports.

10. The calendaring device according to claim 2, wherein a first calendaring roller mounting position is arranged on the inner side of the driven support, the first calendaring roller mounting position is located below the driving back roller mounting position and is communicated with the driving back roller mounting position, a groove communicated with the first calendaring roller mounting position is formed in the bottom of the driving back roller mounting position, a mounting block is detachably arranged in the groove, a through hole communicated with the first calendaring roller mounting position is formed between the bottom of the groove and the mounting block, two first calendaring roller supports are movably arranged in the first calendaring roller mounting positions of the two driven supports respectively, two ends of the first calendaring roller are respectively rotatably arranged in the two first calendaring roller supports, and two ends of the first calendaring roller respectively penetrate through the corresponding through holes and respectively extend out of the two driven supports.