calendering mechanism of a calender
By combining the front, middle, and rear calendering roll structure with the shifting guide rail, the problems of insufficient sheet thickness control and operational stability of the calendering machine are solved, realizing flexible control of sheet thickness and improved operational stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RUIAN ZHUORUI MASCH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-05-29
AI Technical Summary
Existing calenders are inadequate in controlling sheet thickness and improving operational stability, which can easily lead to indentations on the sheet surface and unstable operation.
The structure employs a front, middle, and rear calendering roll configuration. Through the front and rear shifting guide rails and their support bases, combined with a shifting transmission device and a limit adjustment device, the relative positions of the front and rear calendering rolls can be adjusted to regulate the roll gap and calendering pressure, ensuring the sheet thickness and stability.
It enables flexible control of sheet thickness, improves the operational stability of the calender, avoids indentations on the sheet surface, and meets the molding needs of different plastic products.
Smart Images
Figure CN224296376U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the calendering mechanism of a plastic sheet calendering machine. Background Technology
[0002] Calenders are the main equipment for producing plastic sheets. They can be used to produce continuous rolls of plastic sheets as materials and can be used in production lines for molding disposable plastic cups, plastic boxes and other plastic products (including plastic thermoforming machines).
[0003] As a material, continuously rolled plastic sheets are extruded from a sheet extruder and then enter a calender. The calender's calendering rollers clamp the material and roll it together to calender the sheet. A corresponding winding device can be configured to wind it up. The structure and layout of the calendering rollers are crucial. It is necessary to control the pressure between the calendering rollers to regulate the thickness of the calendered sheet to meet the molding requirements of different plastic products. In addition, it is necessary to improve the stability of the calender during operation to avoid shaking and causing indentations on the smooth surface of the material, which would affect the quality of the sheet. Utility Model Content
[0004] In view of the technical problems existing in the background art, the present invention aims to provide a calendering mechanism of a calendering machine with a reasonable structural layout that facilitates the control of the thickness of the calendered sheet.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A calendering mechanism for a calendering mill includes a front roll assembly, a middle roll assembly, and a rear roll assembly. The front roll assembly includes a front calendering roll, a front support seat, and a front roll drive component. The front calendering roll is mounted on the front support seat, and the front roll drive component is connected to the front support seat. The front calendering roll is drive-connected to the front roll drive component. The middle roll assembly includes a middle calendering roll, a middle support seat, and a middle roll drive component. The middle calendering roll is mounted on the middle support seat, and the middle roll drive component is connected to the middle support seat. The middle calendering roll is drive-connected to the middle roll drive component. The rear roll assembly includes a rear calendering roll, a rear support seat, and a rear... The roll drive component has the rear calendering roll mounted on the rear support seat, and the rear roll drive component connected to the rear support seat. The rear calendering roll is driven by the rear roll drive component. The middle support seat is mounted on the frame, and the frame also has a front shift guide rail and a rear shift guide rail. The front support seat is mounted on the front shift guide rail, and the rear support seat is mounted on the rear shift guide rail. The front support seat and the rear support seat are located in front of and behind the middle support seat, respectively. The middle calendering roll is positioned between the front calendering roll and the rear calendering roll. The frame also has a front seat shift transmission device and a rear seat shift transmission device. The front seat shift transmission device is driven by the front support seat, and the rear seat shift transmission device is driven by the rear support seat.
[0006] The following optimizations or supplementary explanations can be made to the above technical solutions.
[0007] For example, the forward and backward guide rails are linear guide rails, and the forward and backward guide rails are respectively located at the front and rear of the central support.
[0008] Further optimization involves setting the front and rear calendering rolls with the front roll lower than the rear roll; the front shifting guide rail is arranged horizontally longitudinally, while the rear shifting guide rail is arranged with varying heights. The middle support is fixedly mounted on the frame archway; the line connecting the center of the front calendering roll and the center of the middle calendering roll is parallel to the front shifting guide rail, and the line connecting the center of the middle calendering roll and the center of the rear calendering roll is parallel to the rear shifting guide rail.
[0009] Furthermore, the forward and backward shifting guide rails are mounted on the upper edge of the frame archway, and the middle support base is mounted on the upper edge of the frame archway.
[0010] In addition, the front seat shifting transmission device includes a front seat shifting drive component, which is connected and installed on the frame archway. The front seat shifting drive component is connected to the front part of the front support seat, and a front seat rearward movement and approach limit adjustment device is provided between the rear part of the front support seat and the frame archway or the middle support seat. The rear seat shifting transmission device includes a rear seat shifting drive component, which is connected and installed on the frame archway. The rear seat shifting drive component is connected to the rear part of the rear support seat, and a rear seat forward movement and approach limit adjustment device is provided between the front part of the rear support seat and the frame archway or the middle support seat.
[0011] For example, the front seat shifting drive unit uses a pneumatic or hydraulic cylinder and is connected to the frame bracket via a front drive mounting base. The rear seat shifting drive unit also uses a pneumatic or hydraulic cylinder and is connected to the frame bracket via a rear drive mounting base. A front connecting seat is located on the front side of the front support base, and the front seat shifting drive unit connects to the front connecting seat. A rear connecting seat is located on the rear side of the rear support base, and the rear seat shifting drive unit connects to the rear connecting seat.
[0012] The front seat rearward movement and the rear seat forward movement and the adjustment device can each be a ramp adjustment device. The ramp adjustment device includes a shift adjustment block with an inclined surface and a pressing component facing the inclined surface; the pressing component is a pressing block, and corresponding pressing components are respectively set at the rear of the front support and the front of the rear support. Shift adjustment blocks are respectively set at the front of the frame arch on the front side of the rear support and the front of the middle support. The shift adjustment blocks are connected to the lifting and shifting drive component.
[0013] For example, the front seat rearward movement and approach limit adjustment device includes a first displacement adjustment block and a first pressing component. The first displacement adjustment block is disposed on the frame arch or the middle support, and the first pressing component is disposed at the rear of the front support. The first displacement adjustment block is disposed behind the first pressing component, and the first pressing component faces the inclined surface of the first displacement adjustment block. The rear seat forward movement and approach limit adjustment device includes a second displacement adjustment block and a second pressing component. The second displacement adjustment block is disposed on the frame arch or the middle support, and the second pressing component is disposed at the front of the rear support. The second displacement adjustment block is disposed in front of the second pressing component, and the second displacement adjustment block faces the inclined surface of the second pressing component.
[0014] In addition, a first slide rail and a second slide rail are distributed on the frame archway and / or the middle support base. A first displacement adjusting block is configured on the first slide rail, and a second displacement adjusting block is configured on the second slide rail. The first displacement adjusting block is configured for lifting and shifting adjustment, and the second displacement adjusting block is configured for lifting and shifting adjustment. The first slide rail is orthogonal to the front displacement guide rail, and the second slide rail is orthogonal to the rear displacement guide rail. The first displacement adjusting block is drivenly connected to the first lifting and shifting adjustment device, and the second displacement adjusting block is drivenly connected to the second lifting and shifting adjustment device. The first lifting and shifting adjustment device and the second lifting and shifting adjustment device are respectively selected as worm gear screw jacks.
[0015] Additional optimizations include: a first bearing is installed between the front support and the front calendering roll; the front roll drive component includes a first motor, a first reducer, and a front connecting flange plate; the first motor is driven and mounted on the first reducer; the front connecting flange plate has a first flange ring; the output port of the first reducer is correspondingly connected to the first flange ring; the front connecting flange plate is connected to the front support; the front connecting flange plate also has a first lower extension located below the first flange ring; the first lower extension is connected to the housing of the first reducer by a first connecting rod; the first motor is located outside the first connecting rod; a second bearing is installed between the middle support and the middle calendering roll; the middle roll drive component includes a second motor and a second reducer; the second motor is driven and mounted on the second reducer; the output of the second reducer... The input port of the machine frame is connected to the input port of the middle support. A second connecting rod is also connected between the frame arch and the housing of the second reducer. The second connecting rod is located below the middle support, and the second motor is located outside the second connecting rod. A third bearing is provided between the rear support and the rear calendering roll. The rear roll drive component includes a third motor, a third reducer, and a rear connecting flange plate. The third motor is driven and installed on the third reducer. The rear connecting flange plate has a second flange ring. The output port of the third reducer is connected to the second flange ring. The rear connecting flange plate is connected to the rear support. The rear connecting flange plate also has a second lower extension. The second lower extension is located below the second flange ring. The second lower extension is connected to the housing of the third reducer by the third connecting rod. The third motor is located outside the third connecting rod.
[0016] The beneficial effects of this utility model are as follows: the calendering mechanism of the calendering machine is equipped with a front, middle and rear three-roll calendering structure on the frame, which has a reasonable structural layout, facilitates the feeding and arrangement of continuously rolled plastic sheets, and can also be used to adjust the thickness of the calendered sheet; the gap between the front calendering roll and the middle calendering roll is used for the first calendering, and the gap between the middle calendering roll and the rear calendering roll is used for the second calendering; wherein, the front calendering roll and the rear calendering roll can be moved forward and backward respectively, which not only separates them from the middle calendering roll to facilitate the feeding and arrangement of the sheet, but also allows for adjustment of the gap between them, thereby adjusting the calendering pressure (between the rolls) to adjust the thickness of the calendered sheet, which can meet the requirements of different sheet thicknesses when making cups from plastic products. Attached Figure Description
[0017] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model.
[0019] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure.
[0020] Figure 3 for Figure 1 Rear view.
[0021] Figure 4 This is a three-dimensional structural diagram of the middle roller drive component and the middle support base in this utility model.
[0022] Figure 5 This is a three-dimensional schematic diagram of the cooperation structure between the front roller drive component and the front support seat or the rear roller drive component and the rear support seat in this utility model.
[0023] Figure 6 for Figure 5 Another exploded view of the structure.
[0024] Figure 7 for Figure 6 Another structural diagram from a different angle.
[0025] In the picture:
[0026] 1. Front roll assembly; 10. Front calendering roll; 11. Front support seat; 12. Front roll drive assembly; 13. First motor; 14. First reducer; 15. Front connecting flange plate; 16. First flange ring; 17. First lower extension; 18. First connecting rod;
[0027] 2. Intermediate roll assembly; 20. Intermediate calendering roll; 21. Intermediate support base; 22. Intermediate roll drive unit; 23. Second motor; 24. Second reducer; 28. Second connecting rod;
[0028] 3. Rear roll assembly; 30. Rear calendering roll; 31. Rear support seat; 32. Rear roll drive assembly; 33. Third motor; 34. Third reducer; 35. Rear connecting flange plate; 36. Second flange ring; 37. Second lower extension; 38. Third connecting rod;
[0029] 4. Frame archway; 41. Front shift guide rail; 42. Rear shift guide rail;
[0030] 5. Front seat shifting transmission device; 50. Front seat shifting drive component; 51. Front drive mounting base; 52. Front connecting base; 53. Front seat rearward movement and approach limit adjustment device; 55. First shifting adjustment block; 56. First pressing component; 57. Inclined surface; 58. First slide groove; 59. First lifting and shifting adjustment device;
[0031] 6. Rear seat shifting transmission device; 60. Rear seat shifting drive component; 61. Rear drive mounting base; 62. Rear connecting base; 63. Rear seat forward movement and approach limit adjustment device; 65. Second shifting adjustment block; 66. Second pressing component; 67. Inclined surface; 68. Second slide groove; 69. Second lifting and shifting adjustment device. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0033] Referring to the accompanying drawings, the calendering mechanism of the calender in this embodiment includes a front roll assembly 1, a middle roll assembly 2, and a rear roll assembly 3.
[0034] The front roller assembly 1 includes a front calendering roller 10, a front support seat 11, and a front roller drive component 12. The front calendering roller 10 is disposed on the front support seat 11 and is supported by the front support seat 11 to rotate. The front roller drive component 12 is connected to the front support seat 11 and is connected to the front roller drive component 12 for transmission. The front roller drive component 12 is used to drive the front calendering roller 10 on the front support seat 11 to rotate.
[0035] The intermediate roll device 2 includes an intermediate calendering roll 20, an intermediate support base 21, and an intermediate roll drive component 22. The intermediate calendering roll 20 is disposed on the intermediate support base 21, and the intermediate support base 21 supports the intermediate calendering roll 20 to roll and rotate. The intermediate roll drive component 22 is connected to the intermediate support base 21, and the intermediate calendering roll 20 is connected to the intermediate roll drive component 22 for transmission. The intermediate roll drive component 22 is used to drive the intermediate calendering roll 20 on the intermediate support base 21 to roll and rotate.
[0036] The rear roll assembly 3 includes a rear calendering roll 30, a rear support seat 31, and a rear roll drive component 32. The rear calendering roll 30 is disposed on the rear support seat 31 and is supported by the rear support seat 31 to roll and rotate. The rear roll drive component 32 is connected to the rear support seat 31 and is connected to the rear roll drive component 32 for transmission. The rear roll drive component 32 is used to drive the rear calendering roll 30 on the rear support seat 31 to roll and rotate.
[0037] The middle support seat 21 is set on the frame arch 4 (i.e., the frame support upright plate). The frame arch 4 is also equipped with a front shift guide rail 41 and a rear shift guide rail 42. The front support seat 11 is arranged on the front shift guide rail 41, which is used to support the front support seat 11 to move and adjust its position on the frame arch 4. The rear support seat 31 is arranged on the rear shift guide rail 42, which is used to support the rear support seat 31 to move and adjust its position on the frame arch 4. The front support seat 11 and the rear support seat 31 are respectively arranged in front of and behind the middle support seat 21. The middle calendering roll 20 is arranged between the front calendering roll 10 and the rear calendering roll 30, forming a front, middle and rear three-roll calendering structure.
[0038] The frame archway 4 is also equipped with a front seat shifting transmission device 5 and a rear seat shifting transmission device 6. The front seat shifting transmission device 5 is connected to the front support seat 11 configured on the front shifting guide rail 41 so as to drive the front support seat 11 to move and adjust its position on the front shifting guide rail 41. The front calendering roller 10 on the front support seat 11 moves and adjusts its position along the front shifting guide rail 41 (back and forth). The rear seat shifting transmission device 6 is connected to the rear support seat 31 configured on the rear shifting guide rail 42 so as to drive the rear support seat 31 to move and adjust its position on the rear shifting guide rail 42. The rear calendering roller 30 on the rear support seat 31 moves and adjusts its position along the rear shifting guide rail 42 (back and forth).
[0039] The working principle is as follows: the material of the continuously rolled plastic sheet (such as output from a sheet extruder) is fed through the gap between the front calender roll 10 and the middle calender roll 20 for the first calendering. After the first calendering, the material is arranged around the roll surface of the middle calender roll 20, and then passes through the gap between the middle calender roll 20 and the rear calender roll 30 for the second calendering. After that, it can be output along the roll surface of the rear calender roll 30. During the calendering process, the gap between the front calender roll 10 and the middle calender roll 20 is used for the first calendering, and the gap between the middle calender roll 20 and the rear calender roll 30 is used for the second calendering. The front calender roll 10 and the rear calender roll 30 can be moved forward and backward respectively, which not only separates them from the middle calender roll 20 to facilitate the arrangement and feeding of the sheet, but also allows for relatively convenient adjustment of the gap size between them and the centrally located middle calender roll 20, thereby adjusting the calendering pressure (between the rolls) to control the thickness of the calendered sheet.
[0040] The calendering mechanism of this calendering machine has a three-roll calendering structure with front, middle and rear rollers on the frame arch 4. The structure is reasonably laid out, which facilitates the feeding and arrangement of continuously rolled plastic sheets and can also be used to control the thickness of the calendered sheets, making it relatively practical.
[0041] Based on the above embodiments, the following optimizations or further explanations can be made.
[0042] For example, the forward shift guide rail 41 and the backward shift guide rail 42 are both linear guide rails, and the forward shift guide rail 41 and the backward shift guide rail 42 are respectively located at the front and rear of the middle support 21.
[0043] Further optimization involves arranging the front calendering roll 10 and the rear calendering roll 30 with the front roll lower than the rear roll. This three-roll calendering structure not only facilitates the vertical drop (hanging) of the extruded sheet into the gap between the front and middle calendering rolls (from above into the gap), making it easier to observe its operating status, but also allows for easier connection of the calendered sheet to the subsequent forming machine due to the higher rear roll. Furthermore, the longer length of the sheet around the surface of the middle calendering roll helps with initial shaping and flattening. Correspondingly, the front shifting guide rail 41 is arranged horizontally longitudinally, while the rear shifting guide rail 42 is arranged with varying heights. The middle support 21 can be fixedly mounted on the frame archway 4. Cooling water can be circulated within each calendering roll to accelerate cooling and facilitate calendering and shaping, or air cooling can also be used.
[0044] The design can be further optimized. The line connecting the center of the front calendering roll 10 and the center of the intermediate calendering roll 20 is parallel to the front shift guide rail 41. This means that during the movement and position adjustment of the front calendering roll 10 along the front shift guide rail 41 on the front support 11, the center of the front calendering roll 10 and the center of the intermediate calendering roll 20 always remain corresponding. Similarly, the line connecting the center of the intermediate calendering roll 20 and the center of the rear calendering roll 30 is parallel to the rear shift guide rail 42. This means that during the movement and position adjustment of the rear calendering roll 30 along the rear shift guide rail 42 on the rear support 31, the center of the rear calendering roll 30 and the center of the intermediate calendering roll 20 always remain corresponding. In this optimized structure, the relative positions of the front calendering roll 10 and the rear calendering roll 30 in cooperation with the intermediate calendering roll 20 are more uniform, resulting in more stable adjustment of the calendering pressure (between the rolls) and avoiding the influence of positional changes.
[0045] It can be further optimized. The front shift guide rail 41 and the rear shift guide rail 42 are mounted on the upper edge of the frame archway 4 (i.e., the frame support plate), and the middle support seat 21 is mounted on the upper edge of the frame archway 4. By making full use of the position of the upper edge of the frame archway 4 for installation, the frame archway 4 provides better support for them.
[0046] For example, the front seat shifting transmission device 5 includes a front seat shifting drive component 50, which is connected and installed on the frame arch 4. The front seat shifting drive component 50 is connected to the front part of the front support seat 11, that is, the front seat shifting drive component acts on the front part of the front support seat 11, and the front seat shifting drive component 50 cooperates to drive the front support seat 11 to move back and forth along the front shifting guide rail 41 on the frame arch 4; a front seat rearward movement and approach limit adjustment device 5 is provided between the rear part of the front support seat 11 and the frame arch 4 or the middle support seat 21. 3. The front seat moves backward and approaches to limit the position of the stop point (i.e., the final position) when the front support seat 11 moves backward and approaches. It can also adjust the relative front and back of the stop point position, so as to realize the limit of the stop point position when the front calendering roller 10 moves backward and approaches with the front support seat 11, and adjust the relative front and back of the stop point position. This is so as to cooperate with the front seat shift transmission device 5 to conveniently and stably control the gap between the front calendering roller 10 and the middle calendering roller 20 when they approach each other, so as to achieve the purpose of adjusting the calendering pressure and the thickness of the sheet.
[0047] Similarly, the rear seat shifting transmission device 6 includes a rear seat shifting drive component 60, which is connected and installed on the frame arch 4. The rear seat shifting drive component 60 is connected to the rear part of the rear support seat 31, that is, the rear seat shifting drive component acts on the rear part of the rear support seat 31, and the rear seat shifting drive component 60 cooperates to drive the rear support seat 31 to move back and forth along the rear shifting guide rail 42 on the frame arch 4; a rear seat forward movement and approach limit adjustment device 6 is provided between the front part of the rear support seat 31 and the frame arch 4 or the middle support seat 21. 3. The rear seat forward movement and approach limit adjustment device 63, in conjunction with the rear support seat 31, limits the stop position (i.e., the final position) when it moves forward and approaches. It can also adjust the relative front and back of the stop position, so as to limit the stop position when the rear calendering roller 30 moves forward and approaches the support seat 31, and adjust the relative front and back of the stop position. This is so as to cooperate with the rear seat shift transmission device 6 to conveniently and stably control the gap between the rear calendering roller 30 and the intermediate calendering roller 20 when they approach each other, thereby achieving the purpose of adjusting the calendering pressure and the thickness of the sheet.
[0048] There are various configurations for the front seat shift drive component 50 and the rear seat shift drive component 60, which can use motors or other power sources. For example, the front seat shift drive component 50 can be a pneumatic or hydraulic cylinder, connected to the frame bracket 4 via a front drive mounting base 51. Similarly, the rear seat shift drive component 60 can be a pneumatic or hydraulic cylinder, connected to the frame bracket 4 via a rear drive mounting base 61. A front connecting base 52 is provided on the front side of the front support base 11, and the piston rod of the front seat shift drive component 50 (such as a pneumatic or hydraulic cylinder) is connected to the front connecting base 52. A rear connecting base 62 is provided on the rear side of the rear support base 31, and the piston rod of the rear seat shift drive component 60 (such as a pneumatic or hydraulic cylinder) is connected to the rear connecting base 62. This structure maintains the structural integrity of the front support base 11 and the rear support base 31, facilitating maintenance and assembly.
[0049] For example, the front seat rearward movement and proximity limit adjustment device 53 and the rear seat forward movement and proximity limit adjustment device 63 respectively adopt inclined block adjustment devices.
[0050] The inclined block adjustment device includes a displacement adjustment block and a pressing component. The displacement adjustment block has an inclined surface, meaning it moves with the displacement adjustment block to adjust its relative position. The pressing component faces this inclined surface, and when they come together, the pressing component presses against the inclined surface of the displacement adjustment block for limiting. The displacement adjustment block can also be pre-moved to adjust its relative position, thereby adjusting the relative position of the inclined surface. The point where the pressing component presses against the inclined surface will be adjusted to regulate the relative front-to-back position of the stop point. For example, the pressing component can be a pressing block. In the structural distribution, the rear of the front support 11 and the front of the rear support 31 are respectively equipped with corresponding pressing components, and the frame arch 4 on the front side of the rear support 31 and the front of the middle support 21 are respectively equipped with displacement adjustment blocks. Furthermore, the displacement adjustment block is connected to a lifting and shifting drive component, which drives the displacement adjustment block to move up and down to adjust its relative position. The lifting and shifting drive component can be a worm gear screw jack, etc.
[0051] Specifically, the front seat rearward movement and approach limit adjustment device 53 includes a first displacement adjustment block 55 and a first pressing component 56. The first displacement adjustment block 55 is disposed on the frame archway 4 or the middle support seat 21. The first pressing component 56 is disposed at the rear of the front support seat 11. The first displacement adjustment block 55 is disposed behind the first pressing component 56, and the first pressing component 56 faces the inclined surface 57 of the first displacement adjustment block 55. The rear seat forward movement and approach limit adjustment device 63 includes a second displacement adjustment block 65 and a second pressing component 66. The second displacement adjustment block 65 is disposed on the frame archway 4 or the middle support seat 21. The second pressing component 66 is disposed at the front of the rear support seat 31. The second displacement adjustment block 65 is disposed in front of the second pressing component 66, and the second displacement adjustment block 65 faces the inclined surface 67 of the second pressing component 66. The frame archway 4 and / or the middle support base 21 are provided with a first slide groove 58 and a second slide groove 68. A first displacement adjustment block 55 is disposed on the first slide groove 58, and a second displacement adjustment block 65 is disposed on the second slide groove 68. The first displacement adjustment block 55 and the second displacement adjustment block 65 are configured for lifting and shifting. The lifting and shifting can be vertical or oblique. The first slide groove 58 is orthogonal to the front displacement guide rail 41, and the second slide groove 68 is orthogonal to the rear displacement guide rail 42. The first displacement adjustment block 55 is driven by a first lifting and shifting adjustment device 59. The first lifting and shifting adjustment device 59 works in conjunction with the first displacement adjustment block 55 to adjust its relative position by lifting and shifting. The second displacement adjustment block 65 is driven by a second lifting and shifting adjustment device 69. The second lifting and shifting adjustment device 69 works in conjunction with the second displacement adjustment block 65 to adjust its relative position by lifting and shifting. The first lifting and shifting adjustment device 59 and the second lifting and shifting adjustment device 69 are respectively selected from worm gear screw jacks (as corresponding lifting and shifting drive components). The first and second shifting adjustment blocks can also be pre-moved and adjusted to adjust their relative positions, thereby adjusting the relative positions of the inclined surfaces 57 and 67. The points where the first and second pressing components press on the inclined surfaces 57 and 67 will be adjusted so as to adjust the relative front and rear positions of the stop points, thereby achieving the purpose of adjusting the calendering pressure and adjusting the sheet thickness.
[0052] The connection methods between each support base and the corresponding calendering roll and drive component are relatively mature. This invention will further optimize its structure. For example, a first bearing is provided between the front support base 11 and the front calendering roll 10 to allow the front calendering roll 10 to roll smoothly on the front support base 11. The front roll drive component 12 includes a first motor 13, a first reducer 14, and a front connecting flange plate 15. The front connecting flange plate 15 has a first flange ring 16. The transmission connection of the first motor 13 to the first reducer 14 is a mature technology (usually the first reducer 14 is directly connected to the front support base 11). In this embodiment, a front connecting flange plate 15 is added between them for a mating connection. The (power) output port of the first reducer 14 is correspondingly connected to the first flange ring 16 on the front connecting flange plate 15. Fasteners such as screws can be used to fix the first reducer 14 to the first flange ring 16 on the front connecting flange plate 15. The power transmission part can pass through the first flange ring 16 for corresponding connections (e.g., the output shaft of the first reducer 14 is connected to the front calendering roll 10). (Connected to the spindle drive), in addition, the front connecting flange plate 15 also has a first lower extension 17, which is located below the first flange ring 16, that is, the first lower extension 17 is located on the lower side of the first flange ring 16 of the front connecting flange plate 15. The first lower extension 17 is connected to the housing of the first reducer 14 by the first connecting rod 18. The first motor 13 is located outside the first connecting rod 18, which can additionally connect the first reducer 14 to the front connecting flange plate 15. In the front support seat 11 running on the front shift guide rail 41 of the frame arch 4, the front connecting flange plate 15 and the first connecting rod 18 are added to cooperate in the connection between the front support seat 11 and the first reducer 14, which reduces the impact caused by the shaking during the shifting operation of the front support seat 11 and the operation of the front calendering roller 10. It can also play the role of fixing the first reducer 14 and preventing it from shifting during the rolling rotation of the front calendering roller 10. The first connecting rod 18 can adopt a screw, nut or other structure for connection and installation.
[0053] In this embodiment, a second bearing is provided between the intermediate support 21 and the intermediate calendering roll 20 to facilitate the smooth rolling and rotation of the intermediate calendering roll 20 on the intermediate support 21. The intermediate roll drive component 22 includes a second motor 23 and a second reducer 24. The transmission connection of the second motor 23 to the second reducer 24 is a mature technology. The (power) output port of the second reducer 24 is connected to the input port of the intermediate support 21. Fasteners such as screws can be used to fix the second reducer 24 to the intermediate support 21. A second connecting rod 28 is also connected between the frame arch 4 and the housing of the second reducer 24. The second connecting rod 28 is located below the intermediate support 21, and the second motor 23 is located outside the second connecting rod 28. This reduces the impact of shaking during the operation of the intermediate calendering roll 20 and also serves to fix the second reducer 24 and prevent it from shifting during the rolling and rotation of the intermediate calendering roll 20. The second connecting rod 28 can be a screw, nut, or other structure for easy connection and fixing.
[0054] For example, a third bearing is provided between the rear support 31 and the rear calendering roll 30 to facilitate the smooth rolling and rotation of the rear calendering roll 30 on the rear support 31. The rear roll drive component 32 includes a third motor 33, a third reducer 34, and a rear connecting flange plate 35. The transmission connection of the third motor 33 to the third reducer 34 is a mature technology (usually the third reducer 34 is directly connected to the rear support 31). In this embodiment, a rear connecting flange plate 35 is added between them for mating connection. The rear connecting flange plate 35 has a second flange ring 36. The (power) output port of the third reducer 34 is correspondingly connected to the second flange ring 36 on the rear connecting flange plate 35. Fasteners such as screws can be used to fix the third reducer 34 to the second flange ring 36 on the rear connecting flange plate 35. The power transmission part can pass through the second flange ring 36 for corresponding connection (e.g., the output shaft of the third reducer 34 is connected to the spindle of the rear calendering roll 30). In addition, the rear connecting flange plate 35 also has a second lower extension 37, which is located below the second flange ring 36. That is, the second lower extension 37 is located below the second flange ring 36 of the rear connecting flange plate 35. The second lower extension 37 is connected to the housing of the third reducer 34 by the third connecting rod 38. The third motor 33 is located outside the third connecting rod 38, which can connect the third reducer 34 to the rear connecting flange plate 35. In the rear support seat 31 running on the rear shift guide rail 42 of the frame arch 4, the rear connecting flange plate 35 and the third connecting rod 38 are added to cooperate in the connection between the rear support seat 31 and the third reducer 34, reducing the impact of the rear support seat 31 shifting and the shaking caused by the rear calendering roll 30 during operation. It can also play a role in fixing the third reducer 34 and preventing it from shifting during the rolling and rotating process of the rear calendering roll 30. The third connecting rod 38 can adopt a screw, nut or other structure for connection and installation.
Claims
1. A calendering mechanism for a calendering mill, comprising a front roll assembly (1), a middle roll assembly (2), and a rear roll assembly (3), characterized in that: The front roll assembly (1) includes a front calendering roll (10), a front support seat (11), and a front roll drive unit (12). The front calendering roll (10) is mounted on the front support (11), and the front roll drive unit (12) is connected to the front support (11). The front calendering roll (10) and the front roll drive unit (12) are connected in a transmission manner. The intermediate roll assembly (2) includes an intermediate calendering roll (20), an intermediate support seat (21), and an intermediate roll drive component (22). The intermediate calendering roll (20) is mounted on the intermediate support base (21), and the intermediate roll drive component (22) is connected to the intermediate support base (21). The intermediate calendering roll (20) and the intermediate roll drive component (22) are connected in a transmission manner. The rear roll assembly (3) includes a rear calendering roll (30), a rear support (31), and a rear roll drive assembly (32). The rear calendering roll (30) is mounted on the rear support (31), and the rear roll drive unit (32) is connected to the rear support (31). The rear calendering roll (30) is connected to the rear roll drive unit (32) in a transmission connection. The middle support base (21) is set on the frame archway (4), and the frame archway (4) is also equipped with a front shift guide rail (41) and a rear shift guide rail (42). The front support (11) is mounted on the front shift guide (41), and the rear support (31) is mounted on the rear shift guide (42). The front support (11) and the rear support (31) are respectively located at the front and rear of the middle support (21), and the middle calendering roll (20) is arranged between the front calendering roll (10) and the rear calendering roll (30). The frame archway (4) is also equipped with a front seat shift transmission device (5) and a rear seat shift transmission device (6). The front seat shifting transmission device (5) is connected to the front support seat (11) in a transmission connection. The rear seat shift transmission device (6) is connected to the rear support seat (31) in a transmission connection.
2. The calendering mechanism of the calender of claim 1, wherein: The front shift guide (41) and the rear shift guide (42) are linear guides respectively, and the front shift guide (41) and the rear shift guide (42) are respectively located at the front and rear of the middle support (21).
3. The calendering mechanism of the calendering machine as described in claim 1, characterized in that: The front calendering roll (10) and the rear calendering roll (30) are arranged with the front lower and the rear higher relative to each other; the front shifting guide rail (41) is arranged horizontally longitudinally front and back, and the rear shifting guide rail (42) is arranged with the front and rear higher and lower inclined. The middle support (21) is fixedly installed on the frame archway (4); The line connecting the center of the front calendering roll (10) and the center of the middle calendering roll (20) is parallel to the front shift guide rail (41). The line connecting the center of the intermediate calendering roll (20) and the center of the rear calendering roll (30) is set parallel to the rear shift guide rail (42).
4. The calendering mechanism of the calendering machine as described in claim 1, characterized in that: The front shift guide rail (41) and the rear shift guide rail (42) are mounted on the upper edge of the frame archway (4), and the middle support base (21) is mounted on the upper edge of the frame archway (4).
5. The calendering mechanism of the calendering mill as described in claim 1, characterized in that: The front seat shifting transmission device (5) includes a front seat shifting drive component (50), which is connected and installed on the frame arch (4). The front seat shift drive component (50) is connected to the front part of the front support (11). A front seat rearward movement and approach limit adjustment device (53) is provided between the rear of the front support seat (11) and the frame archway (4) or the middle support seat (21). The rear seat shifting transmission device (6) includes a rear seat shifting drive component (60), which is connected and installed on the frame arch (4). The rear seat shift drive component (60) is connected to the rear of the rear support (31). A rear seat forward movement and approach limit adjustment device (63) is provided between the front of the rear support seat (31) and the frame archway (4) or the middle support seat (21).
6. The calendering mechanism of the calendering machine as described in claim 5, characterized in that: The front seat shift drive unit (50) is a pneumatic or hydraulic cylinder, and the front seat shift drive unit (50) is connected to the frame arch (4) via the front drive mounting base (51). The rear seat shift drive unit (60) is a pneumatic or hydraulic cylinder, and the rear seat shift drive unit (60) is connected to the frame arch (4) via the rear drive mounting base (61). A front connecting seat (52) is provided on the front side of the front support seat (11), and the front seat shifting drive component (50) is connected to the front connecting seat (52). A rear connecting seat (62) is provided on the rear side of the rear support seat (31), and the rear seat shifting drive component (60) is connected to the rear connecting seat (62).
7. The calendering mechanism of the calendering mill as described in claim 5, characterized in that: The front seat rearward movement and proximity limit adjustment device (53) and the rear seat forward movement and proximity limit adjustment device (63) respectively adopt inclined block adjustment devices. The inclined block adjustment device includes a displacement adjustment block with an inclined surface and a pressing component facing the inclined surface; The pressing component adopts a pressing block, and the rear part of the front support (11) and the front part of the rear support (31) are respectively provided with corresponding pressing components. The frame archway (4) on the front side of the rear support (31) and the front side of the middle support (21) are respectively provided with displacement adjustment blocks, which are connected to the lifting and shifting drive components.
8. The calendering mechanism of the calendering machine as described in claim 5, characterized in that: The front seat rearward movement and proximity limiting adjustment device (53) includes a first displacement adjustment block (55) and a first pressing component (56). The first shift adjustment block (55) is mounted on the frame arch (4) or the middle support (21). The first pressing component (56) is located at the rear of the front support (11). The first shift adjustment block (55) is positioned behind the first pressing component (56), with the first pressing component (56) facing the inclined surface of the first shift adjustment block (55). The rear seat forward movement and proximity limiting adjustment device (63) includes a second displacement adjustment block (65) and a second pressing component (66). The second shift adjustment block (65) is mounted on the frame arch (4) or the middle support (21). The second pressing component (66) is located at the front of the rear support (31). The second shift adjustment block (65) is positioned in front of the second pressing component (66), with the second shift adjustment block (65) facing the inclined surface of the second pressing component (66).
9. The calendering mechanism of the calendering machine as described in claim 8, characterized in that: The frame archway (4) and / or the middle support base (21) are provided with a first slide groove (58) and a second slide groove (68). The first shift adjustment block (55) is disposed on the first slide groove (58). The second shift adjustment block (65) is disposed on the second slide (68). The first displacement adjustment block (55) has a lifting and shifting adjustment setting. The second displacement adjustment block (65) is configured for lifting and lowering displacement adjustment. The first slide (58) is orthogonally arranged to the forward shift guide rail (41). The second slide (68) is orthogonally arranged to the rear shift guide rail (42). The first shift adjustment block (55) is connected to the first lifting and shift adjustment device (59) via a transmission connection. The second shift adjustment block (65) is connected to the second lifting shift adjustment device (69) in a transmission connection; The first lifting and shifting adjustment device (59) and the second lifting and shifting adjustment device (69) are respectively selected as worm gear screw jacks.
10. The calendering mechanism of the calendering mill as described in claim 1, characterized in that: A first bearing is provided between the front support seat (11) and the front calendering roll (10). The front roller drive component (12) includes a first motor (13), a first reducer (14) and a front connecting flange plate (15). The first motor (13) is driven and mounted on the first reducer (14), and the front connecting flange plate (15) has a first flange ring (16). The output port of the first reducer (14) is connected to the first flange ring (16). The front connecting flange plate (15) is connected to the front support base (11). The front connecting flange plate (15) also has a first lower extension (17), which is located below the first flange ring (16). The first lower extension (17) is connected to the housing of the first reducer (14) by a first connecting rod (18), and the first motor (13) is located outside the first connecting rod (18). A second bearing is provided between the intermediate support (21) and the intermediate calendering roll (20). The intermediate roller drive component (22) includes a second motor (23) and a second reducer (24), with the second motor (23) being driven and mounted on the second reducer (24). The output port of the second reducer (24) is connected to the input port of the middle support (21). A second connecting rod (28) is also connected between the housing of the frame archway (4) and the second reducer (24). The second connecting rod (28) is located below the middle support seat (21), and the second motor (23) is located outside the second connecting rod (28). A third bearing is provided between the rear support (31) and the rear calendering roll (30). The rear roller drive component (32) includes a third motor (33), a third reducer (34) and a rear connecting flange plate (35). The third motor (33) is driven and mounted on the third reducer (34), and the rear connecting flange plate (35) has a second flange ring (36). The output port of the third reducer (34) is connected to the second flange ring (36). The rear connecting flange plate (35) is connected to the rear support base (31). The rear connecting flange plate (35) also has a second lower extension (37), which is located below the second flange ring (36). The second lower extension (37) is connected to the housing of the third reducer (34) by a third connecting rod (38), and the third motor (33) is located outside the third connecting rod (38).