A controllable middle and high roller magnetic suspension compensation device and calender

Abstract

A controllable middle-height roller magnetic suspension compensation device and a calender, the magnetic suspension compensation device comprises a mounting shaft, a magnet fixedly mounted on the mounting shaft, a compensation rod, and a supporting arc rod fixedly mounted on the compensation rod; after the magnet is energized, a magnetic force is generated to drive the compensation rod to move and support the compensation rod; the calender comprises a magnetic suspension compensation device, a calender body and a lubricant coating device; the calender body comprises a mounting frame, a hot roller rotatably mounted on the mounting frame, a lifting frame, and a controllable middle-height roller arranged on the lifting frame; the magnetic suspension compensation device of the invention can control the position of the compensation rod by controlling the magnetic force of different groups of magnets, so that the middle-height of the roller shell is controllable and deflection compensation is completed; the lubricant coating device can regularly coat the hot roller and the roller shell with lubricant to reduce friction, reduce wear, extend service life, and maintain a good operating state of the calender.

Description

Technical Field

[0001] The invention relates to the technical field of calenders, and in particular to a controllable middle and high roller magnetic suspension compensation device and a calender. Background Art

[0002] The calender is a device used to improve the glossiness of paper surface. It is mainly composed of hot rollers and controllable middle and high rollers. The hot rollers are cast or forged from alloy steel to provide the heat required for calendering. The controllable middle and high rollers are composed of a roller shell and a support beam, in which the roller shell rotates and the support beam is fixed. The calendering roller will inevitably bend and deform to a certain extent under the action of its own weight and additional pressure. The magnitude of this deformation is called deflection. In order to keep the printed matter flat after calendering, it is necessary to obtain a uniform horizontal line pressure on the calendering roller, so the middle and high of the calendering roller must be controlled to compensate for the deflection deformation. Although the structure adopted by the existing controllable middle and high rollers can compensate for the deflection deformation by changing the middle and high of the calendering roller according to a certain rule, it cannot control the deflection of the pressure zone in sections and cannot flexibly respond to various production conditions.

[0003] On the other hand, during the use of the calender, in order to reduce friction, reduce wear and improve work efficiency, it is necessary to apply lubricant to the calender roller. Currently, the work of applying lubricant to the calender still needs to be done manually, which is not only inefficient but also wastes manpower. Summary of the invention

[0004] In view of the above problems, the present invention proposes a controllable middle and high roller magnetic suspension compensation device and a calender, and the technical solution used is:

[0005] A controllable medium-high roller magnetic suspension compensation device is characterized in that it includes a mounting shaft, a magnet arranged in a circular array along the axial direction and fixedly mounted on the mounting shaft, a compensation rod corresponding to the magnet and slidably mounted along a ray with the mounting shaft as the center, and a supporting arc rod fixedly mounted on the compensation rod; when the magnet is energized, a magnetic force is generated to drive the compensation rod to move and support the compensation rod.

[0006] A calender, comprising a controllable middle-height roller magnetic suspension compensation device as described above, a calender body and a lubricant application device; the calender body comprises a mounting frame, a hot roller rotatably mounted on the mounting frame, a lifting frame, and a controllable middle-height roller arranged on the lifting frame; the controllable middle-height roller comprises a roller shell rotatably mounted on the lifting frame, and a support beam rotatably mounted inside the roller shell and fixedly mounted on the lifting frame;

[0007] The installation shaft is coaxially fixedly installed inside the support beam, and the compensation rod is radially slidably installed on the support beam;

[0008] The lubricant coating device includes a support frame, an upper coating plate and a lower coating plate corresponding to the hot roller and the roller shell respectively and both slidably mounted on the support frame, a movable frame slidably mounted on the support frame, a spray head mounted on the movable frame, a movable mechanism for driving the movable frame to move, and a linkage mechanism for linking the upper coating plate, the lower coating plate and the movable frame.

[0009] Furthermore, the calender body also includes a bidirectional lead screw and a fixed block driven to move by the bidirectional lead screw; the fixed blocks on both sides of the lifting frame intermittently clamp the lifting frame.

[0010] Furthermore, the lifting frame is driven to rise and fall by a lifting cylinder.

[0011] Furthermore, the heat roller is driven to rotate by a motor 3 fixedly mounted on the mounting frame; and the roller shell is driven to rotate by a motor 4 fixedly mounted on the lifting frame.

[0012] Furthermore, the moving mechanism includes a servo motor fixedly mounted on a support frame, a cam whose base circle center is synchronously connected to the output end of the servo motor, a rack 1 that is slidably and elastically mounted on the support frame, a gear 1 that is rotatably mounted on the support frame and meshes with the rack 1, and a connecting rod 1 that is fixedly mounted on the gear 1 and slidably connected to the moving frame.

[0013] Furthermore, the linkage mechanism includes a linkage block fixedly mounted on the mobile frame, racks 2 and 3 that cooperate with the linkage block, slide and are elastically mounted on the support frame, gear 2 that is rotatably mounted on the support frame and meshes with rack 2, connecting rod 2 that is fixedly mounted on gear 2 and slidingly connected to the lower applicator plate, rack 4 that is slidably mounted on the support frame and synchronously transmission connected to rack 3 and fixedly connected to the upper applicator plate.

[0014] Furthermore, the linkage mechanism also includes a gear three rotatably mounted on the support frame and meshing with the rack three, and a gear four rotatably mounted on the support frame and synchronously connected to the gear three and meshing with the rack four.

[0015] Furthermore, the calender main body also includes a groove wheel mechanism, which includes a motor fixedly mounted on a mounting frame, an active dial coaxially fixedly connected to an output end of the motor, and a driven groove wheel cooperating with the active dial and coaxially fixedly mounted on the hot roller.

[0016] Furthermore, the calender main body also includes a second groove wheel mechanism, which includes a second motor fixedly mounted on a lifting frame, a second active dial coaxially fixedly connected to the output end of the second motor, and a second driven groove wheel cooperating with the second active dial and coaxially fixedly mounted on the roller shell.

[0017] Since the present invention adopts the above technical solution, the present invention has the following advantages:

[0018] 1. The supporting arc rod of the magnetic suspension compensation device can prop up the middle part of the roller shell under the magnetic force of the magnet to compensate for the bending deformation that is bound to occur under the action of its own weight and additional pressure. The magnetic suspension compensation device can control the position of the compensation rod by changing the magnetic force of different groups of magnets, so that the middle and high sections of the roller shell are controllable, and the supporting diameter of the supporting arc rod decreases from the middle to both sides to achieve the purpose of deflection compensation.

[0019] 2. The calender of the present invention is not only equipped with a magnetic suspension compensation device to compensate for the bending deformation of the roller shell and ensure the calendering quality, but also has a lubricant application device that can regularly apply lubricant to the hot roller and the roller shell to reduce friction, reduce wear, extend service life, and maintain the calender in good operating condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the assembly structure of the magnetic suspension compensation device of the present invention.

[0021] Figure 2-Figure 3 It is a schematic diagram of the overall structure of the magnetic suspension compensation device of the present invention.

[0022] Figure 4-Figure 5 It is a partial structural schematic diagram of the magnetic suspension compensation device of the present invention.

[0023] Figure 6-Figure 8 It is a schematic diagram of the overall structure of the calender of the present invention.

[0024] Figure 9-10 It is a structural schematic diagram of the calender body of the present invention.

[0025] Fig.11 It is a schematic diagram of the assembly structure of the lifting frame, lifting cylinder, fixing block and bidirectional lead screw in the calender body of the present invention.

[0026] Fig.12 It is a schematic diagram of the internal structure of the controllable middle and high rollers in the calender body of the present invention.

[0027] Fig.13 It is a schematic diagram of the assembly structure of the lifting frame, lifting cylinder, roller shell and grooved wheel mechanism 2 in the calender body of the present invention.

[0028] Fig.14 For the present invention Fig.13 Schematic diagram of the local enlarged structure at point A in the middle.

[0029] Fig.15 It is a schematic diagram of the assembly structure of the mounting frame, the hot roller and the grooved wheel mechanism 1 of the present invention.

[0030] Fig.16 For the present invention Fig.15 Schematic diagram of the local enlarged structure at point B in the middle.

[0031] Figure 17-Figure 18 It is a structural schematic diagram of the lubricant coating device of the present invention.

[0032] Figure 19-20 It is a partial structural schematic diagram of the lubricant coating device of the present invention.

[0033] Fig.21 It is a schematic diagram of the structure of the moving mechanism in the lubricant coating device of the present invention.

[0034] Figure 22-Figure 23 It is a schematic diagram of the assembly structure of the upper smear plate, the lower smear plate and the linkage mechanism of the present invention.

[0035] Fig.24 For the present invention Fig.23 Schematic diagram of the local enlarged structure at point C in the middle.

[0036] Fig.25 For the present invention Fig.23 Schematic diagram of the local enlarged structure at point D in the middle.

[0037] Fig.26 It is a connection diagram of the control terminal and the electrical components of the present invention.

[0038] Figure Number:

[0039] 1-Magnetic suspension compensation device;

[0040] 101-installation shaft (1011-connection block); 102-magnet; 103-compensation rod; 104-support arc rod;

[0041] 2-calender body;

[0042] 201-hot roller; 202-controllable middle and high roller (2021-roller shell; 2022-support beam); 203-mounting frame; 204-groove mechanism 1 (2041-motor 1; 2042-active dial 1; 2043-driven groove wheel 1); 205-groove mechanism 2 (2051-motor 2; 2052-active dial 2; 2053-driven groove wheel 2); 206-lifting frame; 207-lifting cylinder; 208-fixed block; 209-bidirectional screw; 210-motor 3; 211-motor 4;

[0043] 3- Lubricant application device;

[0044] 301-upper smear plate; 302-lower smear plate; 303-moving frame; 304-spray head; 305-support frame; 306-moving mechanism (3061-servo motor; 3062-cam; 3063-rack one; 3064-gear one; 3065-connecting rod one); 307-linkage mechanism [3071-linkage block; 3072-rack two (3072a-upper linkage ramp plate); 3073-gear two; 3074-connecting rod two; 3075-rack three (3075a-lower linkage ramp plate); 3076-gear three; 3077-gear four; 3078-rack four];

[0045] 4-Control terminal. DETAILED DESCRIPTION

[0046] The technical solution of the present invention is further specifically described below by way of embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0047] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "in", "out", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Embodiment 1:

[0048] This embodiment discloses a magnetic suspension compensation device for a controllable middle and high roller of a calender. Figure 1-Figure 5 As shown, it includes an installation shaft 101, a magnet 102, a compensation rod 103 and a supporting arc rod 104; six connecting blocks 1011 are evenly distributed and fixedly installed on the installation shaft 101 along the axial direction; the connecting block 1011 is in the shape of a regular pentagonal prism, and a magnet 102 is fixedly installed on each side of the connecting block 1011; in this embodiment, the magnet 102 is an electromagnet; each magnet 102 corresponds to a compensation rod 103 made of ferromagnetic material, and the magnet 102 can drive the corresponding compensation rod 103 to move after being energized; a supporting arc rod 104 is fixedly installed on the radial outermost end of each compensation rod 103; the center of the five supporting arc rods 104 corresponding to the same connecting block 1011 coincides. Embodiment 2:

[0049] This embodiment discloses a calender using the magnetic suspension compensation device in the first embodiment. Figure 1 , Figure 6-Figure 8 and Fig.26 As shown, it includes a magnetic suspension compensation device 1, a calender body 2, a lubricant coating device 3 and a control end 4; the calender body 2 is provided with a hot roller 201 and a controllable middle and high roller 202, and the magnetic suspension compensation device 1 is arranged in the controllable middle and high roller 202 of the calender body 2; the lubricant coating device 3 is arranged on one side of the calender body 2, and is used to regularly apply lubricant to the hot roller 201 and the controllable middle and high roller 202.

[0050] like Figure 1 and Figure 9-Figure 16 As shown, the calender body 2 includes a hot roller 201, a controllable middle and high roller 202, a mounting frame 203, a grooved wheel mechanism 1 204, a grooved wheel mechanism 2 205, a lifting frame 206, a lifting cylinder 207, a fixing block 208, a bidirectional lead screw 209, a motor 3 210 and a motor 4 211;

[0051] The heat roller 201 is rotatably mounted on the mounting frame 203 along the horizontal axis, and the motor 3 210 is fixedly mounted on the mounting frame 203, and the output end is coaxially fixedly connected with one end of the heat roller 201; the groove wheel mechanism 1 204 comprises a motor 1 2041, an active dial 1 2042 and a driven groove wheel 1 2043; the motor 1 2041 is fixedly mounted on the mounting frame 203, and the output end thereof is coaxially fixedly connected with the active dial 1 2042; the driven groove wheel 1 2043 is coaxially fixedly mounted on the other end of the heat roller 201; the active dial 1 2042 and the driven groove wheel 1 2043 cooperate with each other, and the driven groove wheel 1 2043 rotates 90° for every rotation of the active dial 1 2042;

[0052] The controllable middle and high roller 202 is located directly below the hot roller 201, and includes a roller shell 2021 and a support beam 2022; the roller shell 2021 is made of flexible material, and the roller shell 2021 is rotatably mounted on the lifting frame 206 along the horizontal axis; the support beam 2022 is cylindrical, and the support beam 2022 is coaxially rotatably mounted inside the roller shell 2021 and horizontally fixedly mounted on the lifting frame 206; the motor 211 is fixedly mounted on the lifting frame 206, and its output end is coaxially fixedly connected to one end of the roller shell 2021 The second groove wheel mechanism 205 includes a second motor 2051, a second active dial 2052 and a second driven groove wheel 2053; the second motor 2051 is fixedly mounted on the lifting frame 206, and its output end is coaxially fixedly connected with the second active dial 2052; the second driven groove wheel 2053 is coaxially fixedly mounted on the other end of the roller shell 2021; the second active dial 2052 and the second driven groove wheel 2053 cooperate with each other, and the second driven groove wheel 2053 rotates 90° for every rotation of the second active dial 2052;

[0053] There are three lifting cylinders 207, which are evenly arranged below the lifting frame 206. The telescopic end of the lifting cylinder 207 is fixedly connected to the lifting cylinder 207 to drive the lifting cylinder 207 to move. The bidirectional lead screw 209 is horizontally arranged on one side of the lifting frame 206. Two fixed blocks 208 are symmetrically installed on the bidirectional lead screw 209, and the bidirectional lead screw 209 can drive the two fixed blocks 208 to move toward each other. The two fixed blocks 208 intermittently clamp the lifting frame 206 from both sides, so as to fix the lifting frame 206. The corresponding surfaces of the fixed blocks 208 and the lifting frame 206 are provided with protrusions to increase the friction between the fixed blocks 208 and the lifting frame 206, so as to better fix the lifting frame 206.

[0054] The magnetic suspension compensation device 1 is arranged on the support beam 2022; the installation shaft 101 is coaxially fixedly installed inside the support beam 2022, and the compensation rod 103 is radially slidably installed on the support beam 2022 along the support beam 2022.

[0055] like Figure 17-Figure 25 As shown, the lubricant smearing device 3 includes an upper smearing plate 301, a lower smearing plate 302, a movable frame 303, a nozzle 304, a support frame 305, a movable mechanism 306 and a linkage mechanism 307; the upper smearing plate 301 is arranged on one side of the hot roller 201, the lower smearing plate 302 is arranged on one side of the roller shell 2021, and the lower smearing plate 302 is arranged below the upper smearing plate 301; the upper smearing plate 301 and the lower smearing plate 302 are both horizontally slidably mounted on the support frame 305; the movable frame 303 is vertically slidably mounted on the support frame 305, and seven nozzles 304 are evenly distributed horizontally thereon, and the nozzles 304 are connected to the lubricant barrel;

[0056] The moving mechanism 306 includes a servo motor 3061 and two groups of moving components respectively arranged on both sides of the moving frame 303, the moving components including a cam 3062, a rack 3063, a gear 3064 and a connecting rod 3065; the base circle center of the cam 3062 is rotatably mounted on the support frame 305; the rack 3063 slides vertically and is elastically mounted on the support frame 305 through a compression spring, and the top of the rack 3063 is always in contact with the side of the cam 3062; the gear 3064 is rotatably mounted on the support frame 305 and meshes with the rack 3063; the outer end of the connecting rod 3065 is fixedly mounted on the gear 3064, and a limiting slide groove 1 is provided on the inner side; a limiting shaft 1 is fixedly provided on the end side of the moving frame 303, and the limiting shaft 1 is slidably mounted in the limiting slide groove 1; the servo motor 3061 is fixedly mounted on the support frame 305, and its output end is synchronously driven and connected with the base circle centers of the two cams 3062 through a transmission wheel and a transmission belt;

[0057] Specifically, the servo motor 3061 drives the cam 3062 to rotate, and the rotation of the cam 3062 pushes the rack 1 3063 to move in the vertical direction, the rack 1 3063 drives the gear 1 3064 to rotate, the gear 1 3064 drives the connecting rod 1 3065 to rotate, and the limit shaft 1 slides in the limit slide groove 1, so that the moving frame 303 slides in the vertical direction; when the compression spring on the rack 1 3063 is in a relaxed state, the gear 1 3064 meshes with the bottom end of the rack 1 3063 and the moving frame 303 is at the bottom, the cam 3062 pushes the rack 1 3063 to move downward, and the compression spring is The gear 3064 is compressed until the middle part of the rack 3063 is meshed with the gear 1 3064, and the gear 1 3064 drives the connecting rod 3065 to rotate to a horizontal state. At this time, the movable frame 303 moves upward to be flush with the roller shell 2021, and the cam 3062 continues to push the rack 1 3063 to move downward. When the gear 1 3064 is meshed with the top of the rack 1 3063, the movable frame 303 moves upward to be flush with the hot roller 201; conversely, the servo motor 3061 drives the cam 3062 to rotate in the opposite direction, and the rack 1 3063 moves upward under the reset action of the compression spring, thereby driving the movable frame 303 to move from top to bottom;

[0058] The linkage mechanism 307 is provided with two groups, which are respectively arranged on both sides of the hot roller 201 and the roller shell 2021, each group includes a linkage block 3071, a rack 2 3072, a gear 2 3073, a connecting rod 2 3074, a rack 3 3075, a gear 3 3076, a gear 4 3077 and a rack 4 3078; the linkage block 3071 is fixedly installed on the side of the moving frame 303; the rack 2 3072 and the rack 3 3075 are both horizontally slidable and elastically installed on the support frame 305 through a tension spring, an upper linkage ramp plate 3072a is fixedly installed on the rack 2 3072, and a lower linkage ramp plate 3075a is fixedly installed on the rack 3 3075; the upper linkage ramp plate 3072a is located above the linkage block 3071, and the upper end surface of the linkage block 3071 is inclined corresponding to the upper linkage ramp plate 3072a; the lower linkage ramp plate 30 75a is located below the linkage block 3071, and the lower end surface of the linkage block 3071 is inclined corresponding to the lower linkage ramp plate 3075a; gear two 3073 is rotatably mounted on the support frame 305 and meshes with the rack two 3072; the upper end of the connecting rod two 3074 is fixedly mounted on the gear two 3073, and a limiting slide groove two is provided on the lower side, and a limiting shaft two is fixedly provided on the end side of the lower smearing plate 302, and the limiting shaft two is slidably mounted in the limiting slide groove two; gear three 3076 is rotatably mounted on the support frame 305 and meshes with the rack three 3075; gear four 3077 is rotatably mounted on the support frame 305 and is synchronously driven and connected with the gear three 3076 through a transmission wheel and a transmission belt; rack four 3078 is horizontally slidably mounted on the support frame 305 and meshes with the gear four 3077, and the rack four 3078 is fixedly connected to the upper smearing plate 301;

[0059] Specifically, the linkage block 3071 moves up and down with the moving frame 303; when the linkage block 3071 moves upward, the upper end surface of the linkage block 3071 contacts the upper linkage ramp plate 3072a, and pushes the upper linkage ramp plate 3072a to move, and the rack 2 3072 moves accordingly and drives the gear 2 3073 to rotate, and the gear 2 3073 drives the connecting rod 2 3074 to rotate, and the limit shaft 2 slides in the limit slide groove 2, driving the lower smear plate 302 to move; when the linkage block 3071 moves downward, the lower end surface of the linkage block 3071 contacts the lower linkage ramp plate 3075a, and pushes the lower linkage ramp plate 3075a to move, and the rack 3 3075 moves accordingly and drives the gear 3 3076 to rotate, and the gear 3 3076 drives the gear 4 3077 to rotate, and the gear 4 3077 drives the rack 4 3078 to move, and the rack 4 3078 drives the upper smear plate 301 to move.

[0060] like Fig.26 As shown, the control end 4 includes a main controller, an interactive switch, an information transmission module, a storage module and a power module, and the main controller is electrically connected to the interactive switch, the information transmission module, the storage module, the power module, the magnet 102, the motor 1 2041, the motor 2 2051, the lifting cylinder 207, the bidirectional screw 209, the motor 3 210, the motor 4 211, and the servo motor 3061; the main controller is used to control the operation of the entire calender; the interactive switch is used to control the opening and closing of each electrical component; the information transmission module is used for information transmission between the main controller and each electrical component; the power module is used to provide a stable power supply for the control end 4; the storage module is used to store the operation information data of the entire calender.

[0061] The working principle of calendering in this embodiment is as follows:

[0062] When calendering is performed, the lifting cylinder 207 pushes the lifting frame 206 upward, the bidirectional screw 209 drives the two fixed blocks 208 to approach each other and clamp the lifting frame 206, the motor 1 2041 and the motor 2 2051 are turned off, and their output ends remain free, the motor 3 210 drives the hot roller 201 to rotate, the motor 4 211 drives the roller shell 2021 to rotate, and the printed matter is transported between the hot roller 201 and the roller shell 2021 by the printed matter conveying table.

[0063] Working principle of magnetic suspension compensation device 1:

[0064] After the magnet 102 is energized, the compensation rod 103 moves outward under the influence of electromagnetic force, and the supporting arc rod 104 props up the middle part of the roller shell 2021 to compensate for the deformation of the roller shell 2021 that is inevitably caused by its own weight and additional pressure, so that the roller shell 2021 can ensure the uniform thickness of the paper product during the rolling operation; the position of the compensation rod 103 is controlled by controlling the magnetic force of different groups of magnets 102, so that the middle and high of the roller shell 2021 can be controlled to achieve deflection compensation and realize magnetic suspension compensation, and the magnitude of the input current of the magnet 102 can be controlled according to the gap between the roller and the paper or between the rollers.

[0065] The working principle of applying lubricant in this embodiment:

[0066] The hot roller 201 and the roller shell 2021 stop working, the motor three 210 and the motor four 211 are turned off, and their output ends remain in a free state; in the initial state, the gear one 3064 is meshed with the middle part of the rack one 3063, and the movable frame 303 is flush with the roller shell 2021;

[0067] First, the nozzle 304 sprays lubricant onto the roller shell 2021, the servo motor 3061 drives the cam 3062 to rotate, the cam 3062 pushes the rack 1 3063 downward, the connecting rod 1 3065 drives the moving frame 303 to move upward, the moving frame 303 moves to be flush with the hot roller 201, the linkage block 3071 drives the rack 2 3072 to move, the gear 2 3073 rotates, the connecting rod 2 3074 drives the lower smear plate 302 to move, the lower smear plate 302 is close to the roller shell 2021, the motor 2 2051 is started, the roller shell 2021 rotates 90°, and the lower smear plate 302 evenly applies the lubricant;

[0068] Then, the nozzle 304 sprays lubricant onto the hot roller 201, the servo motor 3061 drives the cam 3062 to rotate in the opposite direction, the rack 1 3063 moves upward, the gear 1 3064 meshes with the bottom end of the rack 1 3063, the moving frame 303 moves to the bottom, the linkage block 3071 drives the rack 3 3075 to move, the gear 3 3076 drives the gear 4 3077 to rotate, the rack 4 3078 drives the upper smear plate 301 to move, the upper smear plate 301 is close to the hot roller 201, the motor 1 2041 is started, the hot roller 201 rotates 90 degrees, and the upper smear plate 301 evenly applies the lubricant;

[0069] Finally, the servo motor 3061 drives the cam 3062 to rotate again, and the cam 3062 pushes the rack 1 3063 downward, and the connecting rod 1 3065 drives the moving frame 303 to move upward until it is flush with the roller shell 2021;

[0070] Repeat the above operation four times to complete the lubricant application work on the hot roller 201 and the roller shell 2021.

Claims

1. A controllable medium and high roller magnetic suspension compensation device, characterized in that: It includes a mounting shaft, a magnet arranged in a circumferential array along the axial direction and fixedly mounted on the mounting shaft, a compensation rod corresponding to the magnet and slidably mounted along a ray with the mounting shaft as the center, and a supporting arc rod fixedly mounted on the compensation rod for compensating for the deflection deformation of the roller shell; After the magnet is energized, the compensation rod moves under the electromagnetic effect and drives the arc rod to move. The movement of the arc rod pushes the corresponding part of the roller shell to compensate for the deflection deformation that is inevitably caused by the roller shell's own weight and additional pressure, so that the roller shell can ensure the uniform thickness of the paper product during the rolling operation. The position of the compensation rod is controlled by controlling the magnetic force of different groups of magnets, so that the middle and high of the roller shell can be controlled, thereby realizing magnetic suspension compensation.

2. A calender, characterized in that: It comprises a controllable middle-height roller magnetic suspension compensation device as claimed in claim 1, a calender body and a lubricant applying device; the calender body comprises a mounting frame, a hot roller rotatably mounted on the mounting frame, a lifting frame, and a controllable middle-height roller arranged on the lifting frame; the controllable middle-height roller comprises a roller shell rotatably mounted on the lifting frame, and a support beam rotatably mounted inside the roller shell and fixedly mounted on the lifting frame; The installation shaft is coaxially fixedly installed inside the support beam, and the compensation rod is radially slidably installed on the support beam; The lubricant coating device includes a support frame, an upper coating plate and a lower coating plate corresponding to the hot roller and the roller shell respectively and both slidably mounted on the support frame, a movable frame slidably mounted on the support frame, a spray head mounted on the movable frame, a movable mechanism for driving the movable frame to move, and a linkage mechanism for linking the upper coating plate, the lower coating plate and the movable frame.

3. A calender according to claim 2, characterized in that: The calender main body also includes a bidirectional lead screw and a fixed block driven to move by the bidirectional lead screw; the fixed blocks on both sides of the lifting frame intermittently clamp the lifting frame.

4. A calender according to claim 2, characterized in that: The lifting frame is driven to move up and down by a lifting cylinder.

5. A calender according to claim 2, characterized in that: The heat roller is driven to rotate by a motor 3 fixedly installed on the mounting frame; the roller shell is driven to rotate by a motor 4 fixedly installed on the lifting frame.

6. A calender according to claim 2, characterized in that: The moving mechanism includes a servo motor fixedly mounted on a support frame, a cam whose base circle center is synchronously connected to the output end of the servo motor, a rack 1 which is slidably and elastically mounted on the support frame, a gear 1 which is rotatably mounted on the support frame and meshes with the rack 1, and a connecting rod 1 which is fixedly mounted on the gear 1 and slidably connected to the moving frame.

7. A calender according to claim 2, characterized in that: The linkage mechanism includes a linkage block fixedly installed on the mobile frame, racks 2 and 3 that cooperate with the linkage block, slide and are elastically installed on the support frame, gear 2 that is rotatably installed on the support frame and meshes with rack 2, connecting rod 2 that is fixedly installed on gear 2 and slidingly connected to the lower smear plate, and rack 4 that is slidably installed on the support frame and synchronously transmitted connected to rack 3 and fixedly connected to the upper smear plate.

8. A calender according to claim 7, characterized in that: The linkage mechanism also includes a gear three rotatably mounted on the support frame and meshing with the rack three, and a gear four rotatably mounted on the support frame and synchronously connected to the gear three and meshing with the rack four.

9. A calender according to claim 7, characterized in that: The calender body also includes a groove wheel mechanism, which includes a motor fixedly mounted on a mounting frame, an active dial coaxially fixedly connected to the output end of the motor, and a driven groove wheel cooperating with the active dial and coaxially fixedly mounted on the hot roller.

10. A calender according to claim 7, characterized in that: The calender body also includes a second groove wheel mechanism, which includes a second motor fixedly mounted on a lifting frame, a second active dial coaxially fixedly connected to the output end of the second motor, and a second driven groove wheel cooperating with the second active dial and coaxially fixedly mounted on the roller shell.

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