Papermaking calender

Abstract

The utility model relates to the technical field of calenders, in particular to a papermaking calender, which adjusts the height of a calendering steel rod through an adjusting device so as to change the pressure on paper in the processing process to adapt to the paper with different thicknesses and calendering requirements, monitors the flat state of the paper in the conveying process through a detection device, and improves the calendering quality of the paper. Ink attached to the surface of the heating roller is erased through the ink erasing device, and the practicability of the device is improved; comprising a rack, heating rollers, calendaring steel rollers and a driving motor, the upper portion and the lower portion in the rack are each provided with a set of calendaring steel rollers and a set of heating rollers, and the heating rollers and the calendaring steel rollers are driven by power provided by the driving motor; comprising an adjusting device, a detecting device and an ink wiping device, the adjusting device is installed on a rack, the detecting device is installed on the rack, and the ink wiping device is installed on the rack.

Description

Technical Field

[0001] The utility model relates to the technical field of calenders, in particular to a paper calender. Background Art

[0002] A calender is a device used to improve the gloss of paper surface, which is a kind of calendering and glazing process. After the surface of a printed matter is coated and the glazing layer is dried, if it is necessary to further improve the smoothness and gloss of the glazing coating, it can be calendered by a calender; the working mode of the calender is usually continuous rolling. The printed matter is conveyed from the paper feeding table to the calender belt between the hot pressing roller and the pressing roller. Under the action of temperature and pressure, the coating adheres to the surface of the calender belt and is calendered. The calendered glazing layer gradually cools to form a bright surface layer. The calender belt is a specially treated stainless steel ring-shaped steel belt. Multiple groups of far-infrared heating sources are installed inside the hot pressing roller to provide the heat required during calendering. The pressure of the pressing roller mostly adopts an electro-hydraulic pressure regulating system, which can accurately meet the requirements for the pressure during calendering. The calendering speed can be adjusted and controlled by a speed-regulating drive motor or a slip motor.

[0003] In the prior art, the Chinese utility model patent with the application number CN202021962355.6 relates to an adjustable and zone-controllable paper calender, including a support, a pressure regulating mechanism, an installation table, a pressure regulating screw rod, a servo motor, a cleaning mechanism, a drive motor, etc., which can be more rapid, accurate and stable, and is conducive to popularization and use.

[0004] However, in actual use, the above device has an unclear cleaning effect on the ink adhered to the surface of the pressing roller. During continuous operation, the ink adhered to the pressing roller will be pressed on the paper surface again, causing pollution to the paper surface. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides a paper calender that adjusts the height of the calender steel roll through an adjusting device, thereby changing the pressure on the paper during the processing process to adapt to papers with different thicknesses and calendering requirements. The flat state of the paper during the conveying process is monitored by a detection device, and the ink adhered to the surface of the heating roller is erased by an ink wiping device, improving the practicability of the device.

[0006] A calender for papermaking of the utility model comprises a frame, a heating roller, a calender roll and a driving motor. A group of calender rolls and heating rollers are respectively installed above and below in the frame. The heating roller and the calender roll are both driven by the driving motor to provide power; it includes an adjusting device, a detecting device and an ink wiping device. The adjusting device is installed on the frame, the detecting device is installed on the frame, and the ink wiping device is installed on the frame; the height of the calender roll is adjusted by the adjusting device, so as to change the pressure on the paper during the processing, adapt to papers with different thicknesses and calendering requirements. The flat state of the paper during the conveying process is monitored by the detecting device, and the ink adhered to the surface of the heating roller is wiped by the ink wiping device, improving the practicability of the device.

[0007] Preferably, the adjusting device includes a lifting block, a lead screw, a bearing and a nut. A group of rectangular holes are respectively arranged on the upper parts of the front and rear end faces of the frame. Two groups of lifting blocks are respectively installed in the two groups of rectangular holes. A group of lead screws are vertically installed on the left and right of the upper end face of the frame through a group of nuts respectively. The lower part of the lead screw passes through the upper end face of the frame and extends into the rectangular hole on its corresponding side and is connected with the upper end face of the lifting block through a bearing. The calender roll is installed on the two groups of lifting blocks; by rotating the lead screw to drive the lead screw to move up and down in cooperation with the nut, the calender roll is driven to move up and down to adjust the working height of the calender roll, and the levelness of the calender roll is adjusted by rotating the unilateral lead screw, improving the practicability of the device.

[0008] Preferably, it further includes a limiting optical rod and a limiting groove. Limiting grooves are respectively arranged on the front and rear end faces of the rectangular holes on the left and right end faces of the frame. Sliding limiting blocks are arranged on the front and rear end faces of the lifting block corresponding to the positions of the two groups of limiting grooves, and a group of limiting optical rods are vertically arranged in the front and rear of the rectangular hole respectively. The two groups of limiting optical rods both pass through the main body of the lifting block; the lifting process of the lifting block is limited by the limiting optical rod and the limiting groove in the rectangular hole, reducing the vibration amplitude of the lifting block during the lifting process, improving the stability and practicability of the device.

[0009] Preferably, the detecting device includes a strip hole, a reciprocating lead screw, a transverse moving platform, a laser sensor and a reduction motor. A group of strip holes are respectively arranged on the right part of the upper end face of the frame in the front and rear. The reciprocating lead screw is horizontally installed in the strip hole. A group of reduction motors are respectively installed on the upper parts of the front and rear end faces of the frame. The output ends of the two groups of reduction motors are respectively connected with the two groups of reciprocating lead screws. The transverse moving platform is connected with the reciprocating lead screw through a nut. The laser sensor is installed on the lower end face of the reciprocating lead screw; the reduction motor is started to transmit the power to the reciprocating lead screw to drive the reciprocating lead screw to rotate. The transverse moving platform is driven to move horizontally by the rotating reciprocating lead screw in cooperation with the nut on the transverse moving platform. The edge position of the paper is monitored by the laser sensor on the transverse moving platform, and the situation of paper bending can be found in time, improving the practicability of the device.

[0010] Preferably, the ink wiping device includes a speed reducer, a motor, a conveying roller, a conveyor belt, and an ink wiping sponge sheet. Two groups of conveying rollers are horizontally installed in the right part of the frame. The conveyor belt is sleeved on the two groups of conveying rollers. A speed reducer is installed on the front end face of the frame, and a motor is installed on the speed reducer. The output end of the speed reducer is connected to the left conveying roller. Multiple groups of ink wiping sponge sheets are connected to the surface of the conveyor belt. When the motor is started, the power is transmitted to the conveying roller through the speed reducer to drive the conveying roller to rotate. Through the cooperation of the two groups of conveying rollers and the conveyor belt rotation, different ink wiping sponge sheets on the conveyor belt are closely contacted with the side surface of the lower heating roller. The ink on the surface of the heating roller is wiped and cleaned by the ink wiping sponge sheet to prevent the ink from contaminating the paper surface again. By rotating the conveyor belt to drive different ink wiping sponge sheets to wipe the heating roller, the cleaning effect of the surface of the heating roller is ensured, and the practicability of the device is improved.

[0011] Preferably, it further includes a hook-and-loop fastener surface and a hook-and-loop fastener mother surface. The hook-and-loop fastener surface is arranged on the lower end surface of the ink wiping sponge sheet, and multiple groups of hook-and-loop fastener mother surfaces are arranged on the side surface of the limit optical rod. It is convenient for the operator to quickly replace and clean the ink wiping sponge sheet on the conveyor belt through the hook-and-loop fastener surface and the hook-and-loop fastener mother surface, reducing the labor intensity of the operator.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: By adjusting the device to adjust the height of the calender roll, thereby changing the pressure on the paper during the processing, adapting to papers with different thicknesses and calendering requirements. By the detection device to monitor the flat state of the paper during the conveying process, and by the ink wiping device to wipe the ink adhered to the surface of the heating roller, improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the axonometric structure schematic diagram of the present utility model;

[0014] Figure 2 is the first cross-sectional structure schematic diagram of the present utility model;

[0015] Figure 3 is the second cross-sectional structure schematic diagram of the present utility model;

[0016] Figure 4 is the first partial enlarged structure schematic diagram of the present utility model;

[0017] Figure 5 is the second partial enlarged structure schematic diagram of the present utility model;

[0018] Labels in the attached drawings: 1, frame; 2, heating roller; 3, calender steel roller; 4, drive motor; 5, lifting block; 6, lead screw; 7, bearing; 8, nut; 9, limit optical rod; 10, limit groove; 11, strip hole; 12, reciprocating lead screw; 13, transverse movement platform; 14, laser sensor; 15, reduction motor; 16, reducer; 17, motor; 18, conveying roller; 19, conveyor belt; 20, ink wiping sponge sheet; 21, hook side of magic tape; 22, loop side of magic tape. Specific embodiments

[0019] For ease of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant attached drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0020] Embodiment

[0021] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, the adjusting device is installed on the frame 1, the detecting device is installed on the frame 1, and the ink wiping device is installed on the frame 1;

[0022] First, rotate the lead screw 6 to drive the lead screw 6 to move up and down in cooperation with the nut 8, thereby driving the calender steel roller 3 to move up and down to adjust the working height of the calender steel roller 3. After that, turn on the drive motor 4 to drive the calender steel roller 3 and the heating roller 2 to rotate to perform a calendering operation on the paper. Then, turn on the reduction motor 15 to transmit the power to the reciprocating lead screw 12 to drive the reciprocating lead screw 12 to rotate. The transverse movement platform 13 is driven to move horizontally by the rotating reciprocating lead screw 12 in cooperation with the nut on the transverse movement platform 13. The edge position of the paper is monitored by the laser sensor 14 on the transverse movement platform 13. At the same time, regularly turn on the motor 17 to transmit the power through the reducer 16 to drive the conveying roller 18 to rotate. The two conveying rollers 18 cooperate with the conveyor belt 19 to rotate, and different ink wiping sponge sheets 20 on the conveyor belt 19 are closely contacted with the side surface of the lower heating roller 2, and the ink on the surface of the heating roller 2 can be wiped and cleaned by the ink wiping sponge sheet 20;

[0023] The adjusting device includes a lifting block 5, a lead screw 6, a bearing 7 and a nut 8. A set of rectangular holes are respectively arranged on the upper parts of the front and rear end faces of the frame 1. Two lifting blocks 5 are respectively installed in the two rectangular holes. A set of lead screws 6 are vertically installed on the left and right of the upper end face of the frame 1 through a set of nuts 8. The lower part of the lead screw 6 passes through the upper end face of the frame 1 and extends into the rectangular hole on its corresponding side and is connected to the upper end face of the lifting block 5 through a bearing 7. The calender steel roller 3 is installed on the two lifting blocks 5;

[0024] It further includes a limit optical rod 9 and a limit groove 10. Limit grooves 10 are respectively arranged on the front and rear end faces of the rectangular holes at the left and right end faces of the frame 1. Sliding limit blocks are arranged on the front and rear end faces of the lifting block 5 at positions corresponding to the two groups of limit grooves 10. A group of limit optical rods 9 are vertically arranged in the front and rear of the rectangular hole respectively, and both groups of limit optical rods 9 pass through the main body of the lifting block 5;

[0025] The detection device includes a strip hole 11, a reciprocating lead screw 12, a transverse movement platform 13, a laser sensor 14 and a reduction motor 15. A group of strip holes 11 are respectively arranged in the front and rear of the right part of the upper end face of the frame 1. The reciprocating lead screw 12 is horizontally installed in the strip hole 11. A group of reduction motors 15 are respectively installed on the upper parts of the front and rear end faces of the frame 1. The output ends of the two groups of reduction motors 15 are respectively connected to the two groups of reciprocating lead screws 12. The transverse movement platform 13 is connected to the reciprocating lead screw 12 through a nut. The laser sensor 14 is installed on the lower end face of the reciprocating lead screw 12;

[0026] The ink wiping device includes a reducer 16, a motor 17, a conveying roller 18, a conveyor belt 19 and an ink wiping sponge sheet 20. Two groups of conveying rollers 18 are horizontally installed in the right part of the frame 1. The conveyor belt 19 is sleeved on the two groups of conveying rollers 18. The reducer 16 is installed on the front end face of the frame 1. The motor 17 is installed on the reducer 16. The output end of the reducer 16 is connected to the left conveying roller 18. Multiple groups of ink wiping sponge sheets 20 are connected to the surface of the conveyor belt 19;

[0027] It further includes a hook-and-loop fastener surface 21 and a hook-and-loop fastener mother surface 22. The hook-and-loop fastener surface 21 is arranged on the lower end face of the ink wiping sponge sheet 20, and multiple groups of hook-and-loop fastener mother surfaces 22 are arranged on the side surface of the limit optical rod 9;

[0028] The height of the calendering steel roller 3 is adjusted through the adjusting device, thereby changing the pressure on the paper during the processing to adapt to papers with different thicknesses and calendering requirements. The flat state of the paper during the conveying process is monitored through the detection device, and the ink adhered to the surface of the heating roller 2 is wiped through the ink wiping device, improving the practicability of the device.

[0029] Such as Figures 1 to 5As shown in the figure, for a paper calender of the present utility model, during operation, first rotate the lead screw 6 to drive the lead screw 6 to move up and down in cooperation with the nut 8, thereby driving the calender roll 3 to move up and down to adjust the working height of the calender roll 3. Then, start the drive motor 4 to drive the calender roll 3 and the heating roll 2 to rotate for calendering the paper. Then, start the reduction motor 15 to transmit the power to the reciprocating lead screw 12 to drive the reciprocating lead screw 12 to rotate. By the rotating reciprocating lead screw 12 cooperating with the nut on the transverse movement platform 13, the transverse movement platform 13 is driven to move horizontally. The edge position of the paper is monitored by the laser sensor 14 on the transverse movement platform 13. At the same time, regularly start the motor 17 to transmit the power through the reducer 16 to drive the conveyor roll 18 to rotate. Through the cooperation of the two groups of conveyor rolls 18 and the conveyor belt 19 to rotate, different ink wiping sponge sheets 20 on the conveyor belt 19 are closely contacted with the side surface of the lower heating roll 2, and the ink on the surface of the heating roll 2 can be wiped and cleaned by the ink wiping sponge sheets 20.

[0030] The reduction motor 15, the reducer 16 and the motor 17 of a paper calender of the present utility model are purchased on the market. Those skilled in the art only need to install and operate according to the attached operation manual, and there is no need for those skilled in the art to make creative efforts.

[0031] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A paper calender, comprising a frame (1), a heating roller (2), a calender steel roller (3) and a driving motor (4). A group of calender steel rollers (3) and heating rollers (2) are respectively installed above and below in the frame (1). The heating roller (2) and the calender steel roller (3) are both driven by the driving motor (4) to provide power; characterized in that, It includes an adjusting device, a detecting device and an ink wiping device. The adjusting device is installed on the frame (1), the detecting device is installed on the frame (1), and the ink wiping device is installed on the frame (1).

2. The papermaking calender according to claim 1, wherein, The adjusting device includes a lifting block (5), a lead screw (6), a bearing (7) and a nut (8). A set of rectangular holes are respectively arranged on the upper parts of the front and rear end faces of the frame (1). Two sets of lifting blocks (5) are respectively installed in the two sets of rectangular holes. A set of lead screws (6) are vertically installed on the left and right of the upper end face of the frame (1) through a set of nuts (8). The lower part of the lead screw (6) passes through the upper end face of the frame (1) and extends into the rectangular hole on its corresponding side and is connected to the upper end face of the lifting block (5) through a bearing (7). The calender roll (3) is installed on the two sets of lifting blocks (5).

3. A papermaking calender according to claim 2, characterized in that, It also includes a limiting optical rod (9) and a limiting groove (10). A limiting groove (10) is respectively arranged on the front and rear end faces inside the rectangular holes on the left and right end faces of the frame (1). Sliding limiting blocks are arranged on the front and rear end faces of the lifting block (5) at the positions corresponding to the two sets of limiting grooves (10). A set of limiting optical rods (9) are vertically arranged in the front and rear inside the rectangular hole. Both sets of limiting optical rods (9) pass through the main body of the lifting block (5).

4. A papermaking calender as claimed in claim 1, wherein, The detecting device includes a strip hole (11), a reciprocating lead screw (12), a transverse moving platform (13), a laser sensor (14) and a reduction motor (15). A set of strip holes (11) are respectively arranged on the front and rear of the right part of the upper end face of the frame (1). The reciprocating lead screw (12) is horizontally installed in the strip hole (11). A set of reduction motors (15) are respectively installed on the upper parts of the front and rear end faces of the frame (1). The output ends of the two sets of reduction motors (15) are respectively connected to the two sets of reciprocating lead screws (12). The transverse moving platform (13) is connected to the reciprocating lead screw (12) through a nut. The laser sensor (14) is installed on the lower end face of the reciprocating lead screw (12).

5. A papermaking calender according to claim 1, characterized in that, The ink wiping device includes a reducer (16), a motor (17), a conveying roller (18), a conveyor belt (19) and an ink wiping sponge sheet (20). Two sets of conveying rollers (18) are horizontally installed in the right part inside the frame (1). The conveyor belt (19) is sleeved on the two sets of conveying rollers (18). The reducer (16) is installed on the front end face of the frame (1). The motor (17) is installed on the reducer (16). The output end of the reducer (16) is connected to the left conveying roller (18). Multiple groups of ink wiping sponge sheets (20) are connected to the surface of the conveyor belt (19).

6. A papermaking calender according to claim 5, characterized in that, It also includes a hook-and-loop fastener male surface (21) and a hook-and-loop fastener female surface (22). The hook-and-loop fastener male surface (21) is arranged on the lower end face of the ink wiping sponge sheet (20). Multiple groups of hook-and-loop fastener female surfaces (22) are arranged on the side surface of the limiting optical rod (9).

Images