Papermaking calender press roll with uniform surface temperature

Abstract

The utility model relates to a papermaking calender press roll with uniform surface temperature, which comprises a rack, an adjusting structure is arranged in the rack, the adjusting structure comprises a telescopic rod, the telescopic rod is fixedly mounted at the top of the rack, a lifting plate is fixedly mounted at the bottom of the telescopic rod, and the lifting plate is fixedly mounted on the rack. And a first motor is fixedly mounted in the lifting plate, a bevel gear rod is rotationally connected into the lifting plate, and a sleeve is fixedly mounted at the bottom of the lifting plate. According to the papermaking calender press roller with the uniform surface temperature, the distance between the heating press roller and the soft press roller is adjusted by arranging the adjusting structure, so that the pressure between the soft press roller and the heating press roller is adjusted, the qualified rate of products is improved, meanwhile, through the arrangement of the adjusting structure, the single soft press roller can be independently adjusted, and the production efficiency is improved. And therefore, an operator can conveniently carry out fine adjustment according to actual conditions, and the aim of conveniently adjusting the distance between the pressing rollers is achieved.

Description

Technical Field

[0001] This utility model relates to the field of paper calendering technology, specifically to a paper calendering roller with uniform surface temperature. Background Technology

[0002] Paper calenders are important pieces of equipment in the papermaking process. They improve the smoothness and gloss of paper by continuously rolling the paper with pressure rollers. As a key component, pressure rollers come in various types, such as coated rollers and stone rollers. The type of roller is selected according to the papermaking speed and product requirements. Through hot pressing and pressure treatment, they ensure the paper dewatering efficiency and uniform moisture content across the web, which is crucial for improving paper quality.

[0003] However, existing pressure rollers do not have an adjustment structure to adjust the distance between the pressure rollers, which greatly reduces their practicality in actual use. At the same time, the surface temperature of existing pressure rollers is not uniform enough, resulting in poor matte effect. Therefore, a paper calender pressure roller with uniform surface temperature is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a paper calender pressure roll with uniform surface temperature, which has the advantages of adjusting the distance between pressure rolls while ensuring uniform surface temperature, thus solving the problem that the structure of existing devices needs to be optimized.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a paper calender roller with uniform surface temperature, comprising a frame, a heated roller and a soft roller disposed inside the frame, an adjustment structure disposed inside the frame, and a heating device disposed on the back of the frame;

[0006] The adjustment structure includes a telescopic rod, which is fixedly installed on the top of the frame. A lifting plate is fixedly installed on the bottom of the telescopic rod. A first motor is fixedly installed inside the lifting plate. A bevel gear is rotatably connected inside the lifting plate. A sleeve is fixedly installed at the bottom of the lifting plate. A threaded tapered rod is rotatably connected inside the sleeve. A lifting rod is threaded onto the outer surface of the threaded tapered rod. A U-shaped block is fixedly installed at the bottom of the lifting rod.

[0007] Furthermore, the heating device includes a rotating rod, which is rotatably connected inside the frame. A nozzle is fixedly installed on the outer surface of the rotating rod, and a gear is provided on the outer surface of the rotating rod. A second motor is fixedly installed on the back of the frame, a pulley is fixedly installed on the outer surface of the rotating rod, a pipe rotary joint is fixedly installed on the back of the rotating rod, an equipment box is fixedly installed on the back of the frame, an electric heating rod is fixedly installed inside the equipment box, and a fan is fixedly installed on the inner bottom wall of the equipment box.

[0008] Furthermore, a control panel is provided on the front of the frame, the bottom of the telescopic rod passes through the top of the frame and is fixedly connected to the top of the lifting plate, there are two bevel gears, and the opposite sides of the two bevel gears are respectively fixedly connected to the left and right sides of the first motor, and two limit rods are fixedly installed on the top of the lifting plate.

[0009] Furthermore, there are two sleeves and two threaded cone rods. The tops of the two threaded cone rods respectively engage with the outer surfaces of the two bevel rods. Each threaded cone rod has a lifting rod threadedly connected to its outer surface. Each lifting rod has a U-shaped block fixedly installed at its bottom. There are two soft pressure rollers, which are rotatably connected to the interior of the two U-shaped blocks respectively.

[0010] Furthermore, there are two heating rollers and two rotating rods. The outer surfaces of the two rotating rods are fixedly connected to the interior of the two heating rollers, and the back sides of the two rotating rods penetrate the inner rear wall of the frame. There are two gears, one of which is located on the outer surface of one of the rotating rods, and the other is located at the output end of the second motor. The two gears mesh with each other. A pulley is fixedly installed on the outer surface of each rotating rod, and the two pulleys are connected by belt drive.

[0011] Furthermore, a pipe rotary joint is fixedly installed on the back of each of the rotating rods, an exhaust pipe is fixedly installed on the back of the fan, and the right side of the fan is fixedly connected to the back of the two pipe rotary joints through a Y-shaped pipe.

[0012] Beneficial effects

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The paper calender pressure roller with uniform surface temperature has an adjustable structure that allows for adjustment of the distance between the heated pressure roller and the soft pressure roller, thereby regulating the pressure between the soft pressure roller and the heated pressure roller and improving the product qualification rate. At the same time, the adjustable structure also allows for individual adjustment of a single soft pressure roller, making it easy for operators to make fine adjustments according to the actual situation, thus achieving the purpose of easily adjusting the distance between the pressure rollers.

[0015] 2. The paper calender roller with uniform surface temperature generates hot air through a heating device. The hot air is then delivered to the interior of the two rotating rods by a fan and sprayed out through nozzles to heat the internal chambers of the two heated rollers. The temperature is then transferred to the outer surface of the heated rollers through heat transfer, resulting in a uniform temperature on the outer wall of the heated rollers. The rollers are then driven to rotate by a second motor, thereby ensuring a uniform surface temperature of the rollers. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a front sectional view of the present invention.

[0018] Figure 3 This is a partial side sectional view of the present invention.

[0019] Figure 4 This is a schematic cross-sectional view of the rear of the equipment box of this utility model;

[0020] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Frame; 2. Heating roller; 3. Soft roller; 4. Adjustment structure; 401. Telescopic rod; 402. Lifting plate; 403. First motor; 404. Bevel gear rod; 405. Sleeve; 406. Threaded tapered rod; 407. Lifting rod; 408. U-block; 5. Heating device; 501. Rotating rod; 502. Air nozzle; 503. Gear; 504. Second motor; 505. Pulley; 506. Pipe rotary joint; 507. Equipment box; 508. Heating rod; 509. Fan. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 A paper calender pressure roller with uniform surface temperature includes a frame 1, a heated pressure roller 2 inside the frame 1, a soft pressure roller 3 inside the frame 1, an adjustment structure 4 inside the frame 1, and a heating device 5 on the back of the frame 1.

[0024] The adjustment structure 4 includes a telescopic rod 401. The telescopic rod 401 is fixedly installed on the top of the frame 1. A lifting plate 402 is fixedly installed on the bottom of the telescopic rod 401. A first motor 403 is fixedly installed inside the lifting plate 402. A bevel gear rod 404 is rotatably connected inside the lifting plate 402. A sleeve 405 is fixedly installed on the bottom of the lifting plate 402. A threaded tapered rod 406 is rotatably connected inside the sleeve 405. A lifting rod 407 is threadedly connected to the outer surface of the threaded tapered rod 406. A U-shaped block 408 is fixedly installed on the bottom of the lifting rod 407.

[0025] Furthermore, the heating device 5 includes a rotating rod 501, which is rotatably connected inside the frame 1. A nozzle 502 is fixedly installed on the outer surface of the rotating rod 501, and a gear 503 is provided on the outer surface of the rotating rod 501. A second motor 504 is fixedly installed on the back of the frame 1. A pulley 505 is fixedly installed on the outer surface of the rotating rod 501. A pipe rotary joint 506 is fixedly installed on the back of the rotating rod 501. An equipment box 507 is fixedly installed on the back of the frame 1. An electric heating rod 508 is fixedly installed inside the equipment box 507. A fan 509 is fixedly installed on the inner bottom wall of the equipment box 507.

[0026] Specifically, such as Figure 2 As shown, opening the telescopic rod 401 will move the lifting plate 402, thereby initially adjusting the distance between the soft pressure roller 3 and the heating pressure roller 2. At the same time, opening the first motor 403 will individually control the corresponding bevel rod 404 to rotate, which will drive the corresponding threaded cone rod 406 to rotate. The rotation of the threaded cone rod 406 will cause the lifting rod 407 to move along the sleeve 405, driving the U-shaped block 408 and the soft pressure roller 3 to move, thereby adjusting the soft pressure roller 3 and thus facilitating the adjustment of the distance between the soft pressure roller 3 and the heating pressure roller 2, thereby adjusting the pressure.

[0027] Specifically, such as Figure 3 As shown, turning on the second motor 504 will drive one of the rotating rods 501 to rotate via the gear 503. The rotation of one of the rotating rods 501, in conjunction with the pulley 505 and the belt, will drive the other rotating rod 501 to rotate, thereby simultaneously driving the two heating rollers 2 to rotate. Then, turning on the heating rod 508 will generate hot air inside the equipment box 507. The hot air will be extracted by the fan 509 and sent into the interior of the two rotating rods 501 through the Y-shaped tube and the two pipe rotary joints 506 respectively. The hot air will then be sprayed out through the nozzles 502, thereby raising the temperature of the heating rollers 2 and achieving the purpose of uniform temperature on the outer surface of the heating rollers 2.

[0028] Specifically, such as Figure 1As shown, the control panel is electrically connected to all the electrical equipment within the device. The control panel sends control commands to each component via control signal lines. These signal lines can be analog signal lines, such as 4-20mA current signals, digital signal lines, such as RS485 communication interfaces, or simple switch signal lines. The control signals sent by the control panel are transmitted to the control units of each component via the signal lines. The start and stop operations of each component can be realized through the buttons or touch screen interface on the control panel. After receiving a start command, the controller will send corresponding control signals to each component to start them. When a stop command is received, a stop signal is sent to stop each component from working. The operating parameters of each component can be set on the control panel interface. These parameter settings will be converted into corresponding control signals and sent to the control units of each component, thereby realizing precise adjustment of the operating status of the components. The control panel has the function of monitoring the operating status of each component and can display the operating parameters and status information of each component in real time.

[0029] Specifically, such as Figure 2 As shown, the telescopic rod 401 mainly consists of a motor, a reducer, a telescopic rod body, a control system, guide components, and limit switches. When the motor is powered on, it generates driving torque, which converts high-speed rotation into low-speed, high-torque rotational motion through the reducer. The output shaft of the reducer is connected to the inner or outer tube of the telescopic rod 401. When the output shaft of the reducer rotates, the rotational motion is converted into linear motion of the telescopic rod 401 through a screw pair or other transmission mechanism. The control system adjusts the speed and direction of the motor according to preset parameters, thereby controlling the speed and direction of the telescopic rod 401. When the telescopic rod 401 reaches the preset position, the limit switch sends a signal, and the control system stops the motor, thereby achieving precise positioning of the telescopic rod 401.

[0030] Specifically, such as Figure 2 As shown, the first motor 403 is a dual-output motor, also known as a dual-output shaft motor or dual-shaft motor. It is a type of motor with two output shafts. This type of motor usually consists of two independent output shafts, a drive shaft, and a control unit. Each output shaft can work independently or in concert to adapt to different mechanical and power requirements.

[0031] Specifically, such as Figure 3 As shown, the second motor 504 is an AC asynchronous motor. The AC asynchronous motor is mainly composed of a stator, rotor, bearings, housing, cooling system and terminals. Its working principle is based on the phenomenon of electromagnetic induction. When the AC current passes through the stator winding, a rotating magnetic field is generated between the stator and the rotor, which in turn induces a current in the rotor. This induced current interacts with the rotating magnetic field to generate electromagnetic force, which drives the rotor to rotate, thereby realizing the conversion of mechanical energy.

[0032] Specifically, such as Figure 3As shown, the heating rod 508 is an electric heating element, usually made of resistance wire wound on an insulating material. When current passes through the resistance wire, the resistance wire generates heat, causing the temperature of the heating rod 508 to rise. At the same time, the heating rod 508 also transfers this heat to the surrounding air, causing the temperature of the surrounding air to rise.

[0033] When implementing this procedure, please follow these steps:

[0034] 1) First, the two soft pressure rollers 3 are moved simultaneously by the telescopic rod 401, thereby adjusting the distance between them and the heating pressure roller 2;

[0035] 2) Then, the first motor 403 drives the corresponding bevel gear 404 and threaded bevel gear 406 to rotate, thereby driving the corresponding soft pressure roller 3 to make fine adjustments;

[0036] 3) The second motor 504, in conjunction with gear 503, pulley 505 and belt, drives the two rotating rods 501 and the heating roller 2 to rotate.

[0037] 4) Finally, hot air is generated by the electric heating rod 508 and sent into the interior of the heating roller 2 in conjunction with the fan 509 and the pipe rotary joint 506.

[0038] In summary, this paper calender roller with uniform surface temperature, by setting the adjustment structure 4 to adjust the distance between the heated roller 2 and the soft roller 3, adjusts the pressure between the soft roller 3 and the heated roller 2, thereby improving the product qualification rate. At the same time, by setting the adjustment structure 4, a single soft roller 3 can also be adjusted individually, which makes it convenient for operators to make fine adjustments according to the actual situation, thus achieving the purpose of adjusting the distance between the rollers. By setting the heating device 5, hot air is generated and sent to the interior of the two rotating rods 501 by the fan 509, and then sprayed out through the air nozzles 502 to heat the internal chambers of the two heated rollers 2. The temperature is then transferred to the outer surface of the heated rollers 2 through heat transfer, so that the temperature of the outer wall of the heated rollers 2 is uniform. The second motor 504 drives the rotation, thereby ensuring the uniform surface temperature of the roller.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paper calender roll with uniform surface temperature, comprising a frame (1), characterized in that: The frame (1) is provided with a heating roller (2) inside, a soft roller (3) inside, an adjustment structure (4) inside, and a heating device (5) on the back of the frame (1). The adjustment structure (4) includes a telescopic rod (401). The telescopic rod (401) is fixedly installed on the top of the frame (1). A lifting plate (402) is fixedly installed on the bottom of the telescopic rod (401). A first motor (403) is fixedly installed inside the lifting plate (402). A bevel gear rod (404) is rotatably connected inside the lifting plate (402). A sleeve (405) is fixedly installed on the bottom of the lifting plate (402). A threaded tapered rod (406) is rotatably connected inside the sleeve (405). A lifting rod (407) is threadedly connected to the outer surface of the threaded tapered rod (406). A U-shaped block (408) is fixedly installed on the bottom of the lifting rod (407).

2. The paper calender roll with uniform surface temperature according to claim 1, characterized in that: The heating device (5) includes a rotating rod (501), which is rotatably connected inside the frame (1). A nozzle (502) is fixedly installed on the outer surface of the rotating rod (501). A gear (503) is provided on the outer surface of the rotating rod (501). A second motor (504) is fixedly installed on the back of the frame (1). A pulley (505) is fixedly installed on the outer surface of the rotating rod (501). A pipe rotary joint (506) is fixedly installed on the back of the rotating rod (501). An equipment box (507) is fixedly installed on the back of the frame (1). An electric heating rod (508) is fixedly installed inside the equipment box (507). A fan (509) is fixedly installed on the inner bottom wall of the equipment box (507).

3. The paper calender roll with uniform surface temperature according to claim 1, characterized in that: The front of the frame (1) is provided with a control panel. The bottom of the telescopic rod (401) passes through the top of the frame (1) and is fixedly connected to the top of the lifting plate (402). There are two bevel gear rods (404). The opposite sides of the two bevel gear rods (404) are fixedly connected to the left and right sides of the first motor (403) respectively. Two limit rods are fixedly installed on the top of the lifting plate (402).

4. The paper calender roll with uniform surface temperature according to claim 1, characterized in that: There are two sleeves (405) and two threaded cone rods (406). The tops of the two threaded cone rods (406) are respectively engaged with the outer surfaces of the two bevel rods (404). Each threaded cone rod (406) has a lifting rod (407) threadedly connected to its outer surface. Each lifting rod (407) has a U-shaped block (408) fixedly installed at its bottom. There are two soft pressure rollers (3). The two soft pressure rollers (3) are respectively rotatably connected to the inside of the two U-shaped blocks (408).

5. A paper calender roll with uniform surface temperature according to claim 2, characterized in that: The number of heating rollers (2) and rotating rods (501) are two. The outer surfaces of the two rotating rods (501) are fixedly connected to the interior of the two heating rollers (2). The back of the two rotating rods (501) penetrates the inner rear wall of the frame (1). The number of gears (503) is two. One gear (503) is located on the outer surface of one of the rotating rods (501), and the other gear (503) is located at the output end of the second motor (504). The two gears (503) mesh with each other. A pulley (505) is fixedly installed on the outer surface of each rotating rod (501). The two pulleys (505) are connected by belt drive.

6. A paper calender roll with uniform surface temperature according to claim 2, characterized in that: Each of the rotating rods (501) has a pipe rotary joint (506) fixedly installed on its back, and the fan (509) has an exhaust pipe fixedly installed on its back. The right side of the fan (509) is fixedly connected to the back of the two pipe rotary joints (506) through a Y-shaped pipe.

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