CN221090204U - Quick-change roller device and printing equipment using same - Google Patents

Abstract

The utility model discloses a quick-change roller device and printing equipment applying the same, and relates to the technical field of roller switching, wherein the quick-change roller device comprises two upright plates which are oppositely arranged, and at least 2 first working rollers are arranged between the two upright plates; the two ends of any one first working roller are respectively connected with the vertical plate in a rotating way through a rotary table, a first driving component for driving the first working roller to rotate is arranged on the rotary table, and a fourth driving component for driving the rotary table to rotate is arranged on the rotary table or the vertical plate so as to realize the switching of different first working rollers; according to the utility model, the first driving component drives the turntable to rotate, so that the first working roller can be quickly replaced under the condition that the first working roller is not dismounted, and all the first driving components are integrated on the turntable, so that the working space occupied by the first working roller is reduced, the quick-change roller device is more compact, and the occupied space of the quick-change roller device is reduced.

Description

Quick-change roller device and printing equipment using same

Technical Field

The utility model relates to the technical field of roller switching, in particular to a quick-change roller device and printing equipment using the same.

Background

When the work rolls such as the plate roll, the ink roll and the water roll in the printing operation are worn, aged, deformed and the like, operators often need to detach the old work roll from the device, install the new work roll on the device, and can finish the replacement of the work roll, and the whole process is complicated and time-consuming. In the prior art, although the device capable of replacing the working roller is not detached, the occupied space of the device is large, so that the technical problem that a person skilled in the art needs to solve is solved by reducing the occupied space of the quick-change roller device while ensuring the quick-change of the working roller.

Disclosure of utility model

The utility model aims to provide a quick-change roller device and printing equipment using the same, so as to solve the problems in the prior art, and reduce the occupied space of the quick-change roller device while ensuring that the work roller can be quickly replaced without disassembling the work roller.

In order to achieve the above object, the present utility model provides the following solutions:

The utility model provides a quick-change roller device, which comprises two upright plates which are oppositely arranged, wherein at least 2 first working rollers are arranged between the two upright plates; any one the both ends of first work roller all pass through the carousel respectively with the riser rotates to be connected, be equipped with on the carousel and be used for driving first work roller pivoted first drive assembly, carousel or be equipped with on the riser be used for driving the carousel rotates, in order to realize the difference first work roller switches over fourth drive assembly.

Preferably, the fourth driving assembly comprises a transmission unit connected with one end of at least one turntable, and a fourth driving unit for driving the transmission unit to rotate so as to realize the rotation of the turntable.

Preferably, the turntable is embedded in the vertical plate.

Preferably, the outside of carousel for the riser outwards protrudes and forms the portion of exposing, be equipped with on the riser and be used for the bearing the seat of rotating of portion of exposing, rotate the seat along the circumference setting of carousel, the portion of exposing is equipped with the transmission unit, and be used for with rotate seat normal running fit's rotation groove, the rotation groove with the transmission unit is followed the axial dislocation set of carousel, in order to prevent rotate the seat with the transmission unit takes place to interfere.

Preferably, the transmission unit comprises a gear ring arranged on the turntable, a driving gear meshed with the gear ring, the gear ring is fixedly arranged on the turntable, and the driving gear is connected with the output end of the fourth driving unit.

Preferably, a intermediate wheel for transmitting power to change the rotating speed and torque of the turntable is further arranged between the driving gear and the gear ring.

Preferably, the two rotary tables are provided with the gear rings, the driving gears comprise two gears and are respectively meshed with the gear rings on the two rotary tables, a first transmission rod is arranged between the two driving gears, and two ends of the first transmission rod are respectively connected with the two driving gears so as to realize synchronous rotation of the two driving gears; the fourth driving unit is arranged on any one of the vertical plates.

Preferably, a partition plate matched with the number of the first working rollers is arranged between the two turntables and used for separating the adjacent first working rollers, the partition plate and the first working rollers are distributed at intervals along the circumference of the turntables, and the partition plate extends along the radial direction of the turntables and does not interfere with the work of the first working rollers.

Preferably, when the fourth driving assembly is disposed on the turntable, the fourth driving assembly includes a fourth driving unit disposed on any one of the turntable, the transmission unit includes a first gear connected to an output end of the fourth driving unit, and a first gear ring disposed on the vertical plate, and the first gear ring is meshed with the first gear.

The utility model also provides printing equipment applying the quick-change roller device, the printing equipment comprises an embossing box matched with the first working roller, the embossing box is positioned between two vertical plates and below the first working roller in a working state, the embossing box comprises a box body and a plurality of rows of embossing rollers arranged in the box body along the conveying direction of materials, and a plurality of embossing sleeves protruding from the top of the box body are sleeved on the embossing rollers; the printing equipment further comprises a second working roller arranged between the two vertical plates, and the second working roller is abutted against the first working roller; the two ends of the second working roller are respectively arranged on the second support, the second support is arranged on the vertical plate, and a third driving assembly for driving the second support to be far away from the second working roller is arranged on the vertical plate.

Compared with the prior art, the utility model has the following technical effects:

When the first working roller in the working state needs to be replaced, the turntable can be driven to rotate by starting the first driving assembly, so that the replacement of the first working roller is realized under the condition that the first working roller is not dismounted, obviously, compared with the condition that all the first driving assemblies are integrated on the turntable, the working space occupied by the first working roller is reduced, the quick-change roller device is more compact, and the occupied space of the quick-change roller device is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an overall schematic of a quick change roll apparatus;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a schematic illustration of a quick change roll apparatus with the embossing box and second work roll omitted;

FIG. 4 is an enlarged schematic view at B in FIG. 3;

FIG. 5 is a schematic view of a construction of a quick change roll apparatus from another perspective;

FIG. 6 is an enlarged schematic view of FIG. 5 at C;

FIG. 7 is a schematic diagram of a third drive assembly;

FIG. 8 is an enlarged schematic view of FIG. 7 at D;

FIG. 9 is a schematic structural view of the imprint tank;

FIG. 10 is a schematic view of the structure of the stamping box with the cover plate removed;

Wherein, 1, a vertical plate; 2. a first work roll; 3. a second work roll; 4. a first drive assembly; 5. a second drive assembly; 6. a third drive assembly; 7. a fourth drive assembly; 8. a turntable; 9. a second support; 10. a transmission unit; 11. a rotating seat; 12. a rotating groove; 13. a gear ring; 14. a drive gear; 15. a first transmission rod; 16. intermediate wheel; 17. a first support; 18. an embossing box; 19. an embossing roller; 20. an embossing sleeve; 21. a chute; 22. a sliding block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

As shown in fig. 1-10, the utility model discloses a quick-change roller device, which comprises two upright plates 1 which are oppositely arranged, wherein at least 2 first working rollers 2 are arranged between the two upright plates 1; the two ends of any first working roll 2 are respectively connected with the vertical plate 1 in a rotating way through a rotary table 8, a first driving component 4 for driving the first working roll 2 to rotate is arranged on the rotary table 8, and a fourth driving component 7 for driving the rotary table 8 to rotate is arranged on the rotary table 8 or the vertical plate 1 so as to realize the switching of different first working rolls 2.

When the first working roller 2 is worn, damaged, ink residue or deformed, or the like, or the first working roller 2 is in other conditions that the first working roller 2 cannot continue to work and needs to be replaced, the first driving assembly 4 is stopped, the fourth driving assembly 7 is started, the turntable 8 is driven to rotate by the fourth driving assembly 7, so that synchronous rotation of a plurality of working rollers is driven, the first working roller 2 which cannot continue to work is rotated to an area far away from the working position, the first working roller 2 which is standby on the turntable 8 is rotated to the working position, and then the fourth driving assembly 7 is closed, and the first driving assembly 4 is started, so that the first working roller 2 continues to work. Therefore, the utility model realizes the replacement of the first working roller 2 without disassembling the first working roller 2, obviously, compared with the mode of manually disassembling the old working roller and installing the new working roller in the prior art, the utility model greatly shortens the time required for replacing the first working roller 2 and improves the production efficiency; meanwhile, the plurality of first working rolls 2 are integrated on the turntable 8, so that the quick-change roll device is compact, and the occupied space of the quick-change roll device is reduced.

In this case, the first driving component 4 and the fourth driving component 7 in the present utility model may be only rotation driving devices, such as rotation driving motors, capable of driving the first working roller 2 or the second working roller 3 to rotate, the output end of the rotation driving device is directly connected to one end of the turntable 8 or the first working roller 2, and the first driving component 4 and the fourth driving component 7 may also include rotation driving devices and a transmission unit 10, where the rotation driving devices are connected to the turntable 8 or the first working roller 2 through the transmission unit 10, the transmission unit 10 may be a gear transmission mechanism, a belt transmission mechanism or a chain transmission mechanism, and other devices capable of being used for transmission between the rotation driving devices and the turntable 8 or the first working roller 2 may also be adopted. In the utility model, the turntable 8 can be provided with a plurality of first working rolls 2 of the same type, and the turntable 8 can be provided with a plurality of working rolls of different types according to production requirements.

At least two first working rolls 2 are arranged between the two vertical plates 1, so that when one first working roll 2 is in a working state, the first working roll 2 with standby can be replaced at any time, when 2 first working rolls 2 are arranged between the two vertical plates 1, after the first working rolls 2 are replaced, operators can detach the replaced first working rolls 2 for cleaning or replacement when the standby first working rolls 2 work, and the manufacturing cost of the quick-change roll device is lower. The two ends of any first working roll 2 are respectively connected with the vertical plate 1 in a rotating way through a rotary disc 8, namely, the two ends of each first working roll 2 are respectively connected with the vertical plate 1 in a rotating way through a rotary disc 8. In the utility model, the turntable 8 can be arranged in the vertical plate 1 and is in rotary connection with the vertical plate 1, and the turntable 8 can be arranged outside the vertical plate 1 and is in rotary connection with the vertical plate 1 through a bearing, a coupling and other devices. When the turntable 8 is arranged in the vertical plate 1, the occupied space of the quick-change roller device is small, and when the turntable 8 fails, the damage to surrounding operators is less likely to occur because of the failure in the vertical plate 1; when carousel 8 locates outside riser 1, when carousel 8 breaks down, the operating personnel can more convenient maintain carousel 8. The fourth drive assembly 7 may be provided on the turntable 8 or on the riser 1, in a specific manner as described in more detail below. The fourth driving assembly 7 comprises a transmission unit 10 connected with one end of at least one turntable 8, and a fourth driving unit for driving the transmission unit 10 to rotate so as to realize the rotation of the turntable 8.

The fourth driving assembly 7 includes a transmission unit 10 connected to one end of at least one turntable 8, and a fourth driving unit for driving the transmission unit 10 to rotate to achieve rotation of the turntable 8. The transmission unit 10 is driven by the fourth driving unit to drive the turntable 8 to rotate, so that the first working roller 2 is replaced; by arranging the transmission unit 10, the power of the fourth driving unit can be effectively transmitted to the turntable 8, the transmission unit 10 also plays a role in transmitting torque, and the rotating speed and steering adjustment of the turntable 8 are more convenient. The transmission unit 10 enables the rotating speed, torque, rotating direction and flexible transmission of the turntable 8 to be more accurately adjusted according to different working condition requirements, and the transmission unit 10 avoids direct contact between the fourth driving unit and the turntable 8, reduces vibration and impact between the fourth driving unit and the turntable 8, and ensures the stability and durability of rotation of the turntable 8. The transmission unit 10 may specifically be a gear transmission mechanism, a belt transmission mechanism, a chain transmission mechanism, or the like. The fourth driving assembly 7 includes a transmission unit 10 connected to one end of at least one turntable 8 to effect rotation of the turntable 8; in this connection, it means that one end of at least one turntable 8 is connected to a transmission unit 10, at most one end of each turntable 8 can be connected to one transmission unit 10, a fourth drive unit is provided, and the fourth drive unit is connected to one of the transmission units 10.

As shown in fig. 1-3 and 7, in the present utility model, the first driving components 4 are disposed on the turntable 8 through the first support 17, and the plurality of first driving components 4 may be disposed on the same first support 17, or may be disposed on the turntable 8 through one first support 17.

When the turntable 8 is embedded in the vertical plate 1, the turntable 8 can be rotationally connected with the vertical plate 1 through devices such as a bearing; and at this time, because the turntable 8 is embedded in the vertical plate 1, when the turntable 8 breaks down, the fault only occurs in the vertical plate 1 and can not reach surrounding operators, thereby reducing the probability of safety accidents.

As shown in fig. 1-2, fig. 4 and fig. 7, further, the outer side of the turntable 8 protrudes outwards relative to the vertical plate 1 to form an exposed part, the vertical plate 1 is provided with a rotating seat 11 for supporting the exposed part, the rotating seat 11 is arranged along the circumferential direction of the turntable 8, the exposed part is provided with a transmission unit 10, and a rotating groove 12 for being in rotating fit with the rotating seat 11, and the rotating groove 12 and the transmission unit 10 are arranged in a staggered manner along the axial direction of the turntable 8 so as to prevent the rotating seat 11 from interfering with the transmission unit 10.

At this time, as shown in fig. 1-2, 4 and 7, the outside of the turntable 8, i.e., one end of the turntable 8, protrudes outward from the vertical plate 1, and the protruding exposed portions are supported by a plurality of rotation seats 11 provided along the circumferential direction of the turntable 8; it should be noted that the exposed portion is a portion of the turntable 8 protruding out of the riser 1, that is, an end of the turntable 8 protruding out of the riser 1. The transmission unit 10 may be a gear transmission, a chain transmission or a belt transmission. The fact that the exposed portion is provided with the transmission unit 10 means that a part of the transmission unit 10 is connected with the exposed portion, for example, when the transmission unit 10 is a gear transmission mechanism, a gear or a gear ring 13 is arranged on the exposed portion, and when the transmission unit 10 is a belt transmission mechanism, a belt pulley and a belt are sleeved on the exposed portion. The rotating groove 12 is an annular groove formed in the exposed part, and the rotating groove 12 is rotationally connected with the rotating seat 11, so that when the turntable 8 is rotated by the fourth driving assembly 7 through the transmission unit 10, no large friction is generated between the turntable 8 and the rotating seat 11, and the turntable can smoothly rotate. The axial dislocation arrangement of the rotating groove 12 and the transmission unit 10 along the turntable 8 specifically means that the positions of the rotating groove 12 and the transmission unit 10 connected with the exposed part are in dislocation arrangement along the axial direction of the exposed part, for example, the rotating groove 12 may be located at one side of the connecting part of the transmission unit 10 and the exposed part away from the riser 1, or the rotating groove 12 may also be located at one side of the connecting part of the transmission unit 10 and the exposed part close to the riser 1, so that the two functions of transmission of the transmission unit 10 and rotation of the rotating seat 11 can be smoothly realized, and mutual interference and interference do not occur.

As shown in fig. 1-2, when the transmission unit 10 in the present utility model is a gear transmission mechanism, one specific arrangement of the transmission unit 10 is as follows: the transmission unit 10 comprises a gear ring 13 arranged on the turntable 8, a driving gear 14 meshed with the gear ring 13, the gear ring 13 is fixedly arranged on the turntable 8, and the driving gear 14 is connected with the output end of the fourth driving unit. In this case, the ring gear 13 may be provided on both the rotary tables 8, and the driving gear 14 engaged with the ring gear 13 may be provided, or the ring gear 13 may be provided on only one rotary table 8, and the driving gear 14 engaged with the ring gear 13 may be provided (the driving gear 14 is provided on the riser 1); the gear ring 13 is fixedly arranged on the rotary table 8, and the output end of the fourth driving unit, namely the rotary driving device, is connected with the gear ring 13 through the driving gear 14, so that when the fourth driving unit is started, the gear ring 13 is driven to rotate through the driving gear 14, the rotary table 8 can be driven to rotate, and at least two first working rolls 2 are arranged between the two rotary tables 8, so that when the rotary table 8 provided with the driving unit rotates, power can be transmitted to the other rotary table 8 without the driving unit through the first working rolls 2, and the other rotary table 8 is driven to rotate, namely synchronous rotation of the two rotary tables 8 is realized, and the first working rolls 2 are replaced; simultaneously, the synchronous rotation of the two turntables 8 can be realized by arranging a transmission rod between the two turntables 8 or the two driving gears 14, and the torsional deformation and damage of the power of the first working roller 2 for transmitting the fourth driving unit are relieved and even avoided.

Further, as shown in fig. 2, 4 and 6-7, the present utility model further provides a intermediate wheel 16 for transmitting power between the driving gear 14 and the ring gear 13 to change the rotational speed and torque of the turntable 8. The intermediate wheel 16 can also be an idler wheel, and better adjustment of the rotating speed and torque of the rotary table 8 can be realized through the intermediate wheel 16 or the idler wheel, so that the rotating speed of the rotary table 8 is adjusted according to working conditions, and the replacement rate of the first working roller 2 is controlled.

As shown in fig. 1-2, 4 and 6-7, in the utility model, gear rings 13 are arranged on two turntables 8, driving gears 14 comprise two driving gears and are respectively meshed with the gear rings 13 on the two turntables 8, a first transmission rod 15 is arranged between the two driving gears 14, and two ends of the first transmission rod 15 are respectively connected with the two driving gears 14 so as to realize synchronous rotation of the two driving gears 14; the fourth driving unit is provided on any one of the risers 1. At this time, when the fourth driving unit is started, the fourth driving unit drives the driving gear 14 connected with the fourth driving unit to rotate, the driving gear 14 drives the turntable 8 to rotate through the gear ring 13, the turntable 8 drives the other turntable 8 to rotate through the first working roller 2, and when the driving gear 14 rotates, the driving gear 14 transmits power to the driving gear 14 which is not connected with the fourth driving unit through the first transmission rod 15, so that the turntable 8 which is not provided with one side of the fourth driving unit rotates, and synchronous rotation of the two turntables 8 and switching of the first working roller 2 are realized. And at this time, the power of the output of the fourth driving unit is not required to be transmitted to the other rotary table 8 from one rotary table 8 through the first working roller 2, so that the problem that the first working roller 2 is easy to twist and damage when the first working roller 2 transmits the power of the fourth driving unit is avoided, the service life of the first working roller 2 is prolonged, and the maintenance cost of the quick-change roller device is reduced.

The first transmission rod 15 and the driving gear 14 can be connected together through a key connection, a pin connection, or a clamping connection.

In addition, the utility model is provided with the partition plates which are matched with the number of the first working rolls 2 and are used for separating the adjacent first working rolls 2 between the two turntables 8, the partition plates and the first working rolls 2 are distributed at intervals along the circumferential direction of the turntables 8, and the partition plates are arranged along the radial extension of the turntables 8 and do not interfere with the work of the first working rolls 2. The adjacent first working rolls 2 are separated by the separating plates, so that dirt on the stained first working rolls 2 cannot drop onto the first working rolls 2 in a working state or clean before the stained first working rolls 2 are detached and taken down by operators, the cleanliness of the standby first working rolls 2 is guaranteed, the replacement frequency of the first working rolls 2 is reduced, and the working efficiency of the quick-change roll device is improved. And the radially extending length of the separator is set based on the condition that the normal operation of the first common working roller is not disturbed.

Furthermore, when the fourth driving assembly 7 is disposed on the turntable 8 in the present utility model, the fourth driving assembly 7 includes a fourth driving unit disposed on any turntable 8, and the transmission unit 10 includes a first gear connected to an output end of the fourth driving unit, and a first gear ring 13 disposed on the riser 1, where the first gear ring 13 is meshed with the first gear. At this time, when the fourth driving unit is started, the first gear rotates in the ring gear 13, thereby driving the dial 8 to rotate. The first toothing 13 may alternatively be a toothing 13 of suitable thickness or may be provided on the riser 1 by means of a corresponding bracket or seat for engagement with a first gear wheel projecting from the turntable 8.

As shown in fig. 1 and fig. 7-10, the present utility model further provides a printing apparatus using the quick-change roller device, where the printing apparatus includes an embossing box 18 matched with the first working roller 2, the embossing box 18 is located between two vertical plates 1 and below the first working roller 2 in a working state, the embossing box 18 includes a box body, and multiple rows of embossing rollers 19 disposed in the box body along a conveying direction of materials, and a plurality of embossing sleeves 20 protruding from the top of the box body are sleeved on the embossing rollers 19; the printing equipment further comprises a second working roller 3 arranged between the two vertical plates 1, and the second working roller 3 is abutted against the first working roller 2; both ends of the second working roll 3 are respectively arranged on the second support 9, the second support 9 is arranged on the vertical plate 1, and the vertical plate 1 is provided with a third driving component 6 for driving the second support 9 to be far away from the second working roll 3. The second support 9 is slidably connected with the vertical plate 1, and the concrete arrangement mode is that a chute 21 is arranged on the second support 9, and a sliding block 22 is arranged on the vertical plate; or a sliding block 22 is arranged on the second support, and a sliding groove 21 is arranged on the vertical plate.

The first working roll 2 may be in particular a plate roll and the second working roll 3 may be in particular an anilox roll, the material to be printed passing between the first working roll 2 and the impression box 18, thereby completing the printing. The second support 9 may be provided with a second driving component 5 for driving the second working roller 3 to rotate, where the second driving component 5 is specifically a rotary driving device, such as a rotary driving motor, and when the second driving component 5 is provided, it should be noted that the rotation rates of the second working roller 3 and the first working roller 2 need to be controlled to be the same (the specific control may be implemented by a controller disposed between the first driving component 4 and the second driving component 5, or may be implemented by setting the rotation rates of the first driving component 4 and the second driving component 5 by an operator), so as to achieve good transfer of ink; or if the working condition allows, the second driving component 5 is not arranged, and the second working roller 3 is driven to rotate by the rotation of the first working roller 2. The third driving unit is a linear driving device, such as an air cylinder, a hydraulic cylinder or an electric push rod, which can drive the second support 9 to do linear motion.

The first working roller 2 and the second working roller 3 in the present utility model may be specifically various types of working rollers, for example, when the first working roller 2 and the second working roller 3 are used in a print job, the first working roller 2 and the second working roller 3 may be working rollers such as an ink roller, a plate roller, a water roller, an anilox roller, and the like. The material to be printed can be paper, wood, glass, metal, ceramic or cloth and other materials of different types.

The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.

Claims (10)

1. The quick-change roller device is characterized by comprising two upright plates which are oppositely arranged, wherein at least 2 first working rollers are arranged between the two upright plates; any one the both ends of first work roller all pass through the carousel respectively with the riser rotates to be connected, be equipped with on the carousel and be used for driving first work roller pivoted first drive assembly, carousel or be equipped with on the riser be used for driving the carousel rotates, in order to realize the difference first work roller switches over fourth drive assembly.

2. The quick-change roll device of claim 1, wherein the fourth drive assembly comprises a transmission unit connected to one end of at least one of the turntables, and a fourth drive unit for rotating the transmission unit to effect rotation of the turntables.

3. The quick change roll device of claim 2, wherein the turntable is embedded within the riser.

4. A quick-change roll device according to claim 3, wherein the outer side of the turntable protrudes outwards relative to the vertical plate and forms an exposed part, the vertical plate is provided with a rotating seat for supporting the exposed part, the rotating seat is arranged along the circumferential direction of the turntable, the exposed part is provided with the transmission unit and a rotating groove for being in rotating fit with the rotating seat, and the rotating groove and the transmission unit are arranged in a dislocation manner along the axial direction of the turntable so as to prevent the rotating seat from interfering with the transmission unit.

5. The quick-change roll device according to claim 2, wherein the transmission unit comprises a gear ring arranged on the turntable, and a driving gear meshed with the gear ring, wherein the gear ring is fixedly arranged on the turntable, and the driving gear is connected with the output end of the fourth driving unit.

6. The quick-change roll device according to claim 5, wherein a back wheel for transmitting power to change the rotational speed and torque of the turntable is further provided between the driving gear and the ring gear.

7. The quick-change roll device according to claim 5, wherein the gear rings are arranged on the two turntables, the driving gears comprise two driving gears which are respectively meshed with the gear rings on the two turntables, a first transmission rod is arranged between the two driving gears, and two ends of the first transmission rod are respectively connected with the two driving gears so as to realize synchronous rotation of the two driving gears; the fourth driving unit is arranged on any one of the vertical plates.

8. The quick-change roll device according to claim 1, wherein a partition plate which is adapted to the number of the first work rolls and separates adjacent first work rolls is arranged between the two turntables, the partition plate and the first work rolls are distributed at intervals along the circumferential direction of the turntables, and the partition plate is arranged along the radial extension of the turntables and does not interfere with the work of the first work rolls.

9. The quick-change roll device of claim 2, wherein when the fourth drive assembly is disposed on the turntable, the fourth drive assembly includes the fourth drive unit disposed on any one of the turntable, the transmission unit includes a first gear connected to an output end of the fourth drive unit, and a first ring gear disposed on the riser, the first ring gear being meshed with the first gear.

10. A printing apparatus employing a quick change roll device as claimed in any one of claims 1 to 9, wherein the printing apparatus comprises an embossing box which is matched with the first working roll, the embossing box is positioned between two vertical plates and below the first working roll in an operating state, the embossing box comprises a box body, a plurality of rows of embossing rolls arranged in the box body along the conveying direction of materials, and a plurality of embossing sleeves protruding from the top of the box body are sleeved on the embossing rolls; the printing equipment further comprises a second working roller arranged between the two vertical plates, and the second working roller is abutted against the first working roller; the two ends of the second working roller are respectively arranged on the second support, the second support is arranged on the vertical plate, and a third driving assembly for driving the second support to be far away from the second working roller is arranged on the vertical plate.