A calender roll with a spiral flow channel temperature control system

Abstract

The present invention discloses a technology in the field of PVC film production, specifically a calender roll with a spiral flow channel temperature control system, which includes an inner cylinder. An outer cylinder is installed on the outer side of the inner cylinder, a spiral heat exchanger is installed inside the inner cylinder, cover plates are installed on the front and rear sides of the inner cylinder, and conductive slip rings are installed on the surfaces of the cover plates. The head and tail ends of the spiral heat exchanger are connected to the conductive slip rings through wires. A key cylinder is fixedly connected to the surface of the cover plate, a key rod is key-connected inside the key cylinder, a rotating ring is rotatably installed on the outer side of the key cylinder, a connecting plate is fixedly connected to the outer side of the rotating ring, an adapter plate is fixedly arranged on the surface of the connecting plate, a connecting rod is fixedly connected between the connecting plate and the adjacent connecting plate, and a cutting plate is arranged on the outer side of the connecting rod. This calender roll can not only achieve the heating function, but also adjust the heating range according to the width required by the calendered material, and can also adjust the width of the calendered material and automatically cut off the redundant positions.

Description

Technical Field

[0001] The present invention relates to the technical field of PVC film production, and specifically to a calender roll with a spiral flow channel temperature control system. Background Art

[0002] The main component of the PVC film is polyvinyl chloride. The PVC film has good heat resistance and ductility and can be used as a decorative film and a protective film, and is widely used in industries such as building materials and packaging. During the production of the PVC film, a calendering device is required. The calendering device as a whole consists of a driving device and a calender roll. The calender roll is used to extrude and extend the film material to make it formed. However, there are still some defects in the existing calender roll during use.

[0003] For example, the Chinese invention patent (publication number CN109203335A) discloses a calender roll. The two ends of the roll body are respectively a first end and a second end. The opening of the first cavity is located on the end face of the first end, and the opening of the second cavity is located on the end face of the second end; a heat medium inlet communicating with the first cavity is installed on the end face of the first end, and a heat medium outlet communicating with the second cavity is installed on the end face of the second end; both ends of the heating hole are respectively connected to the first cavity and the second cavity. This roll can effectively improve the temperature uniformity on the surface of the roll; although the above design can achieve the function of improving the surface temperature uniformity, during the actual use process, the heating position cannot be adjusted, the heating range cannot be adjusted according to the width required by the calendered material, nor can the width of the calendered material be adjusted according to the width required by the calendered material and the redundant position be automatically cut off.

[0004] The existing calender roll only has the functions of extrusion and extension and cannot adjust the heating area. Summary of the Invention

[0005] In view of the problems existing in the existing calender roll, the present invention is proposed.

[0006] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A calender roll with a spiral flow channel temperature control system, including an inner cylinder, an outer cylinder is installed on the outside of the inner cylinder, a spiral heat exchanger is installed inside the inner cylinder, cover plates are installed on the front and rear sides of the inner cylinder, a conductive slip ring is installed on the surface of the cover plate, the head and tail ends of the spiral heat exchanger are connected to the conductive slip ring through wires, a key cylinder is fixedly connected to the surface of the cover plate, a key rod is key-connected inside the key cylinder, a rotating ring is rotatably installed outside the key cylinder, a connecting plate is fixedly connected to the outside of the rotating ring, an adapter plate is fixedly arranged on the surface of the connecting plate, a connecting rod is fixedly connected between the connecting plate and the adjacent connecting plate, a cut-off plate is arranged outside the connecting rod, an adjusting component is arranged at the front end of the cut-off plate, installation grooves are opened on the front and rear sides of the inner cylinder and the outer cylinder, a heat insulation filling block is installed inside the installation groove, and the inner cylinder is connected to the outer cylinder through a docking component.

[0007] As a preferred solution of a calender roll with a spiral flow channel temperature control system according to the present invention, wherein: The structures on the front and rear sides of the inner cylinder are the same and face in opposite directions, the central axes of the inner cylinder, the outer cylinder, the cover plate, the conductive slip ring, the key cylinder, the key rod and the rotating ring are collinear, and the rotating ring, the connecting plate, the adapter plate and the cut-off plate are symmetrically distributed on the front and rear sides of the inner cylinder and the connecting rod.

[0008] As a preferred solution of a calender roll with a spiral flow channel temperature control system according to the present invention, wherein: Grooves are opened on the outside of the inner cylinder, the positions of the grooves correspond to the positions of the installation grooves, the grooves are evenly distributed in the installation grooves inside the inner cylinder, the installation grooves are equally angularly distributed on the inner cylinder and the outer cylinder, a docking block is fitted inside the groove, and the docking block and the heat insulation filling block are fixedly connected.

[0009] As a preferred solution of a calender roll with a spiral flow channel temperature control system according to the present invention, wherein: The adjusting component includes a limiting rod fixedly installed on the surface of the adapter plate, a fixing plate is fixedly connected below the adapter plate, a fixing block is fixedly arranged in the middle of the fixing plate, a telescopic cylinder is fixedly arranged inside the fixing block, traction steel ropes are fixedly connected to the left and right sides of the front end of the telescopic cylinder, the traction steel ropes are guided by guide wheels and connected to an outer bushing, the guide wheels are rotatably installed on the left and right sides of the top of the fixing block, the outer bushing is slidably installed outside the limiting rod, and an extension plate is fixedly arranged on the surface of the outer bushing.

[0010] As a preferred solution of a calender roll with a spiral flow channel temperature control system according to the present invention, wherein: A lapping block is fixedly arranged on the side surface of the extension plate, springs are sleeved outside the front and rear ends of the connecting rod, the head and tail ends of the springs are respectively connected to a sliding sleeve and the connecting plate, the sliding sleeve and the cut-off plate are rotatably connected, and the sliding sleeve and the connecting rod are slidably connected.

[0011] As a preferred embodiment of the calender roll with a spiral flow channel temperature control system according to the present invention, wherein: a ball is rotatably installed on one side of the lap block close to the cut-off plate, the balls are evenly distributed on the surface of the lap block, and the balls form a rotating structure through the cut-off plate and the lap block, and the cut-off plate forms a telescopic structure with the adjacent cut-off plate through a telescopic cylinder, a traction steel rope and the lap block.

[0012] As a preferred embodiment of the calender roll with a spiral flow channel temperature control system according to the present invention, wherein: the docking assembly includes a folding rod fixedly installed on the surface of the cover plate, a top block is fixedly arranged at the top of the folding rod, a first damping block is fixedly connected to the front end of the folding rod, and a second damping block is fixedly connected to the front end of the first damping block. A docking groove is formed between the inner cylinder and the outer cylinder, and a top groove is formed on the outer cylinder at the top of the docking groove.

[0013] As a preferred embodiment of the calender roll with a spiral flow channel temperature control system according to the present invention, wherein: the first damping block, the second damping block and the docking block are all made of heat-resistant rubber material. The first damping block and the docking groove are in interference fit, and the second damping block is in a frustum of a pyramid structure.

[0014] As a preferred embodiment of the calender roll with a spiral flow channel temperature control system according to the present invention, wherein: the shape of the docking block is spherical crown-shaped, the material of the heat-insulating filling block is aerogel material, the outer wall of the heat-insulating filling block fits with the inner walls of the installation grooves on the inner cylinder and the outer cylinder, and the heat-insulating filling block forms a clamping structure with the inner cylinder and the outer cylinder through the groove and the docking block.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. By providing the inner cylinder, the outer cylinder and the docking assembly, the device can adjust the relative positions of the inner cylinder and the outer cylinder before use, so as to adjust the number of heat-insulating filling blocks installed between the inner cylinder and the outer cylinder, and further realize the function of adjusting the heating range. The device can not only realize the heating function, but also adjust the heating area by increasing or decreasing the heat-insulating filling blocks made of aerogel material, solving the defect that the existing calender roll cannot adjust the heating range according to the width required by the calendered material during use. The device has the advantages of wider application range and higher adjustable degree.

[0017] 2. Through the telescopic cylinder and traction steel rope on the device, the device can adjust the distance between two adjacent cutting plates by extending or shortening the telescopic cylinder during use, enabling the two adjacent cutting plates to move towards or away from each other. Furthermore, the device can automatically cut off the excess material during the calendering process. The cutting plates of this calender roll can also be used as baffles to switch the feeding direction and discharging direction, so that the device can block the left and right sides of the calendered material during feeding, achieving the function of adjusting the initial width of the calendered material, and solving the defects that the existing calender rolls cannot adjust the width of the calendered material according to the required width of the calendered material and cannot automatically cut off the excess positions during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the drawings and specific embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0019] Figure 1 is the overall structural schematic diagram of a calender roll with a spiral flow channel temperature control system according to the present invention;

[0020] Figure 2 is Figure 1 the structural schematic diagram of part A in

[0021] Figure 3 is the structural schematic diagram of the connection between the outer bushing and the extension plate according to the present invention;

[0022] Figure 4 is the structural schematic diagram of the disassembly of the inner cylinder and the outer cylinder according to the present invention;

[0023] Figure 5 is the structural schematic diagram of the disassembly of the outer cylinder and the heat insulation filling block according to the present invention;

[0024] Figure 6 is Figure 5 the structural schematic diagram of part B in

[0025] Figure 7 is the structural schematic diagram of the disassembly of the inner cylinder and the cover plate according to the present invention;

[0026] Figure 8 is Figure 7 the structural schematic diagram of part C in

[0027] Numbers in the figure: 1, inner cylinder; 2, outer cylinder; 3, cover plate; 4, conductive slip ring; 5, key cylinder; 6, key rod; 7, swivel; 8, connecting plate; 9, connecting plate; 10, connecting rod; 11, adjustment assembly; 1101, limit rod; 1102, fixing plate; 1103, fixing block; 1104, guide wheel; 1105, telescopic cylinder; 1106, traction rope; 1107, outer bushing; 1108, extension plate ; 1109, overlap block; 1110, ball bearing; 1111, spring; 1112, sleeve; 12, cut-off plate; 13, groove; 14, mounting groove; 15, docking assembly; 1501, folding rod; 1502, top block; 1503, first damping block; 1504, second damping block; 1505, docking groove; 1506, top groove; 16, docking block; 17, insulation filling block; 18, spiral heat exchanger. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0031] Example

[0032] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] like Figures 1-8As shown in the figure, a calender roll with a spiral channel temperature control system includes an inner cylinder 1. An outer cylinder 2 is installed on the outer side of the inner cylinder 1. A spiral heat exchanger 18 is installed inside the inner cylinder 1. Cover plates 3 are installed on the front and rear sides of the inner cylinder 1. A conductive slip ring 4 is installed on the surface of the cover plate 3. The head and tail ends of the spiral heat exchanger 18 are connected to the conductive slip ring 4 through wires. By connecting to electricity through the conductive slip ring 4, the calender roll can make the spiral heat exchanger 18 work normally during rotation, realizing the heating function. A key cylinder 5 is fixedly connected to the surface of the cover plate 3. A key rod 6 is key-connected inside the key cylinder 5. A rotating ring 7 is rotatably installed on the outer side of the key cylinder 5. A connecting plate 8 is fixedly connected to the outer side of the rotating ring 7. An adapter plate 9 is fixedly arranged on the surface of the connecting plate 8. Connecting rods 10 are fixedly connected between the connecting plate 8 and the adjacent connecting plate 8. A cutting plate 12 is arranged on the outer side of the connecting rod 10. When the device is in use, the excess part of the calendered material can be cut off by the cutting plate 12. An adjusting assembly 11 is arranged at the front end of the cutting plate 12. The position of the cutting plate 12 can also be adjusted through the adjusting assembly 11, thereby realizing the function of adjusting the stage position of the calendered material. At the same time, the device can also adjust the direction of the feed port and the discharge port, and adjust the position of the feed port to one side of the cutting plate 12, so that the device can use the cutting plate 12 as a baffle to adjust the initial width of the calendered material during feeding. The cutting plate 12 realizes the functions of adjusting the cutting width and adjusting the output width of the calendered material during feeding. Installation grooves 14 are opened on the front and rear sides of the inner cylinder 1 and the outer cylinder 2. Heat insulation filling blocks 17 are installed inside the installation grooves 14. By increasing or decreasing the number of installed heat insulation filling blocks 17, the device can adjust the position of the heating area to adapt to heating work for calendered materials of different widths. The inner cylinder 1 is connected to the outer cylinder 2 through a docking assembly 15.

[0034] In this example, the structures on the front and rear sides of the inner cylinder 1 are the same but in opposite directions. The central axes of the inner cylinder 1, the outer cylinder 2, the cover plate 3, the conductive slip ring 4, the key cylinder 5, the key rod 6, and the rotating ring 7 are collinear to ensure the stability during calendering. The rotating ring 7, the connecting plate 8, the adapter plate 9, and the cutting plate 12 are symmetrically distributed on the front and rear sides of the inner cylinder 1 and the connecting rod 10. The symmetrically distributed cutting plates 12 enable the device to cut off the front and rear sides of the calendered material at the same time, or limit the front and rear sides of the calendered material at the same time.

[0035] In this example, a groove 13 is formed on the outer side of the inner cylinder 1. The position of the groove 13 corresponds to that of the installation groove 14. The grooves 13 are evenly distributed in the installation grooves 14 inside the inner cylinder 1, and the installation grooves 14 are evenly angularly distributed on the inner cylinder 1 and the outer cylinder 2. A docking block 16 is fixedly arranged inside the groove 13, and the docking block 16 and the heat insulation filling block 17 are fixedly connected. Subsequently, by adjusting the number of heat insulation filling blocks 17 installed, the functions of adjusting the heating effect and the heating range can be realized. The evenly distributed grooves 13 correspond to the installation positions of the docking blocks 16 on the heat insulation filling block 17, so that the heat insulation filling block 17 can remain stable after installation.

[0036] In this example, the adjusting assembly 11 includes a limiting rod 1101 fixedly installed on the surface of the connecting plate 9. A fixing plate 1102 is fixedly connected below the connecting plate 9. A fixing block 1103 is fixedly arranged in the middle of the fixing plate 1102. A telescopic cylinder 1105 is fixedly arranged inside the fixing block 1103. Traction steel cables 1106 are fixedly connected to the left and right sides of the front end of the telescopic cylinder 1105. The traction steel cables 1106 are guided by guide wheels 1104 and connected to the outer bushing 1107. The guide wheels 1104 are rotatably installed on the left and right sides of the top of the fixing block 1103. The outer bushing 1107 is slidably installed on the outside of the limiting rod 1101. An extension plate 1108 is fixedly arranged on the surface of the outer bushing 1107. By extending the telescopic cylinder 1105, the telescopic cylinder 1105 pulls the traction steel cables 1106 on the guide wheels 1104, and the end of the traction steel cable 1106 pulls the outer bushing 1107 and the extension plate 1108 to move. The extension plate 1108 facilitates the subsequent adjustment of the width of the calendered material to be cut.

[0037] In this example, a lapping block 1109 is fixedly arranged on the side of the extension plate 1108. Springs 1111 are sleeved on the outer sides of the front and rear ends of the connecting rod 10. The head and tail ends of the springs 1111 are respectively connected to the sliding sleeve 1112 and the connecting plate 8. The sliding sleeve 1112 and the cutting plate 12 are rotatably connected, and the sliding sleeve 1112 and the connecting rod 10 are slidably connected. The springs 1111 facilitate the subsequent automatic reset after the cutting plate 12 and the adjacent cutting plate 12 move towards each other, so as to realize the function of increasing the cutting width of the calendered material. The sliding sleeve 1112 on the connecting rod 10 ensures that the cutting plate 12 can move straight, and at the same time, the cutting plate 12 will not affect the sliding sleeve 1112 and the springs 1111 during the rotation process, ensuring the stable use of the device.

[0038] In this example, balls 1110 are rotatably installed on one side of the lapping block 1109 close to the cutting plate 12. The balls 1110 are evenly distributed on the surface of the lapping block 1109. The balls 1110 form a rotating structure between the cutting plate 12 and the lapping block 1109. The cutting plate 12 forms a telescopic structure with the adjacent cutting plate 12 through the telescopic cylinder 1105, the traction steel rope 1106 and the lapping block 1109. The telescopic structure on the device realizes the function of adjusting the positions of the adjacent two cutting plates 12. The balls 1110 enable the device to reduce the friction between the cutting plate 12 and the lapping block 1109, reduce the loss of the device during adjustment and operation, and ensure the durability of the device.

[0039] In this example, the docking assembly 15 includes a folding rod 1501 fixedly installed on the surface of the cover plate 3. A top block 1502 is fixedly arranged at the top of the folding rod 1501. The front end of the folding rod 1501 is fixedly connected with a first damping block 1503. The front end of the first damping block 1503 is fixedly connected with a second damping block 1504. A docking groove 1505 is formed between the inner cylinder 1 and the outer cylinder 2. A top groove 1506 is formed on the outer cylinder 2 at the top of the docking groove 1505. The second damping block 1504 and the first damping block 1503 on the folding rod 1501 are docked with the docking groove 1505, so that the inner cylinder 1 and the outer cylinder 2 can be kept stable and there will be no angular difference after installation.

[0040] In this example, the materials of the first damping block 1503, the second damping block 1504 and the docking block 16 are all heat-resistant rubber materials. The first damping block 1503 and the docking groove 1505 are in interference fit. The second damping block 1504 is in the shape of a frustum of a pyramid. The first damping block 1503 and the second damping block 1504 are used to dock with the docking groove 1505, so that the first damping block 1503 tightly supports the docking groove 1505 and ensures the stability during docking.

[0041] In this example, the shape of the docking block 16 is spherical crown-shaped. The material of the heat-insulating filling block 17 is aerogel material. The outer wall of the heat-insulating filling block 17 is mutually attached to the inner walls of the installation grooves 14 on the inner cylinder 1 and the outer cylinder 2. The heat-insulating filling block 17 forms a clamping structure with the inner cylinder 1 and the outer cylinder 2 through the groove 13 and the docking block 16. The clamping structure on the device enables the heat-insulating filling block 17 to be kept in a clamped state after installation, and prevents the heat-insulating filling block 17 from shifting in the installation groove 14.

[0042] It should be noted that the present invention is a calender roll with a spiral flow channel temperature control system. First, as Figure 1 、 Figure 2 and Figures 4-8 shown, when the device is in use, a key cylinder 5 and a connecting rod 10 with a longer length can be used (in combination with Figure 1The key cylinder 5) in the upper half, enabling the outer cylinder 2 to be adjusted within a large range on the inner cylinder 1 to achieve the installation and removal of different numbers of heat-insulating filling blocks 17. The device can directly use the cutting plate 12 to cut the calendered material on the outer cylinder 2, or switch the position of the feed inlet to one side of the cutting plate 12, enabling the device to use the cutting plate 12 as a baffle, thereby realizing the function of adjusting the width of the calendered material during feeding. The device can not only adjust the width during discharging, but also switch to adjust the initial width of the calendered material during feeding. During the adjustment process of the device, combined with Figures 1-3 As shown, by extending or shortening the telescopic cylinder 1105 on the fixed block 1103, the telescopic cylinder 1105 pulls the traction steel rope 1106. Under the guiding action of the guiding wheel 1104, the traction steel rope 1106 pulls the outer bushing 1107, and the outer bushing 1107 drives the extension plate 1108 and the overlapping block 1109 to move. The extension plate 1108 and the overlapping block 1109 drive the cutting plate 12 rotatably installed on the outside of the sliding sleeve 1112 to move. The spring 1111 facilitates the subsequent reset of the cutting plate 12. At this time, the positions of two adjacent cutting plates 12 change, and then the position of the material cutting can be adjusted to the initial width of the calendered material. The limiting rod 1101 passing through the inside of the outer bushing 1107 ensures that the cutting plate 12 can move straight. During the rotation of the cutting plate 12, the ball 1110 on the overlapping block 1109 can reduce the friction between the overlapping block 1109 and the cutting plate 12. The key rod 6, the rotating ring 7, the connecting plate 8, and the connecting plate 9 are used to stably support the connecting rod 10 and the limiting rod 1101 on the adjusting assembly 11;

[0043] As Figures 4-8 shown, the device realizes the work of adjusting the installation position of the docking block 16 through the docking block 16 and the grooves 13 and installation grooves 14 corresponding to the position of the docking block 16. After the spiral heat exchanger 18 connected to the conductive slip ring 4 is energized, the function of locally heating is realized. The heat-insulating filling block 17 made of aerogel material realizes the function of heat insulation at a specific position between the inner cylinder 1 and the outer cylinder 2. After the device adjusts the installation quantity and installation position of the docking block 16, by pushing the cover plate 3, the first damping block 1503 and the second damping block 1504 are clamped on the outer wall of the docking groove 1505, enabling the inner cylinder 1 and the outer cylinder 2 to complete the stable clamping work of the inner cylinder 1 and the outer cylinder 2 by using the friction force when the first damping block 1503 and the second damping block 1504 contact the docking groove 1505. The top block 1502 and the top groove 1506 can ensure the stability of the docking of the inner cylinder 1 and the outer cylinder 2.

[0044] Although the present invention has been described above with reference to the embodiments, various modifications can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in the present invention can be combined with each other in any way, and the exhaustive description of these combinations is not given in this specification only for the consideration of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A calender roll with a spiral flow channel temperature control system, comprising an inner cylinder (1), characterized in that: An outer cylinder (2) is installed on the outer side of the inner cylinder (1), a spiral heat exchanger (18) is installed inside the inner cylinder (1), cover plates (3) are installed on the front and rear sides of the inner cylinder (1), a conductive slip ring (4) is installed on the surface of the cover plate (3), the head and tail ends of the spiral heat exchanger (18) are connected to the conductive slip ring (4) through wires, a key cylinder (5) is fixedly connected to the surface of the cover plate (3), a key rod (6) is key-connected inside the key cylinder (5), a rotating ring (7) is rotatably installed on the outer side of the key cylinder (5), a connecting plate (8) is fixedly connected to the outer side of the rotating ring (7), a connecting plate (9) is fixedly arranged on the surface of the connecting plate (8), a connecting rod (10) is fixedly connected between the connecting plate (8) and the adjacent connecting plate (8), a cut-off plate (12) is arranged on the outer side of the connecting rod (10), and an adjusting component (11) is arranged at the front end of the cut-off plate (12). Installation grooves (14) are opened on the front and rear sides of the inner cylinder (1) and the outer cylinder (2), and heat insulation filling blocks (17) are installed inside the installation grooves (14). The inner cylinder (1) is connected to the outer cylinder (2) through a docking component (15); A groove (13) is opened on the outer side of the inner cylinder (1), and the position of the groove (13) corresponds to the position of the installation groove (14). The grooves (13) are evenly distributed in the installation grooves (14) inside the inner cylinder (1). The installation grooves (14) are equally angularly distributed on the inner cylinder (1) and the outer cylinder (2). A docking block (16) is fitted inside the groove (13), and the docking block (16) is fixedly connected to the heat insulation filling block (17); A ball (1110) is rotatably installed on one side of the overlapping block (1109) close to the cut-off plate (12). The balls (1110) are evenly distributed on the surface of the overlapping block (1109). The ball (1110) forms a rotating structure with the overlapping block (1109) through the cut-off plate (12). The cut-off plate (12) forms a telescopic structure with the adjacent cut-off plate (12) through a telescopic cylinder (1105), a traction steel rope (1106) and the overlapping block (1109).

2. A calender roll with a spiral flow channel temperature control system according to claim 1, characterized in that: The structures on the front and rear sides of the inner cylinder (1) are the same and face in opposite directions. The central axes of the inner cylinder (1), the outer cylinder (2), the cover plate (3), the conductive slip ring (4), the key cylinder (5), the key rod (6) and the rotating ring (7) are collinear. The rotating ring (7), the connecting plate (8), the connecting plate (9) and the cut-off plate (12) are symmetrically distributed on the front and rear sides of the inner cylinder (1) and the connecting rod (10).

3. A calender roll with a spiral flow channel temperature control system according to claim 2, characterized in that: The adjusting assembly (11) includes a limiting rod (1101) fixedly installed on the surface of the connecting plate (9). A fixing plate (1102) is fixedly connected below the connecting plate (9). A fixing block (1103) is fixedly arranged in the middle of the fixing plate (1102). A telescopic cylinder (1105) is fixedly arranged inside the fixing block (1103). Traction steel ropes (1106) are fixedly connected to the left and right sides of the front end of the telescopic cylinder (1105). The traction steel ropes (1106) are connected to the outer bushing (1107) through the guiding of the guide wheels (1104). The guide wheels (1104) are rotatably installed on the left and right sides of the top of the fixing block (1103). The outer bushing (1107) is slidably installed on the outside of the limiting rod (1101). An extension plate (1108) is fixedly arranged on the surface of the outer bushing (1107).

4. The calender roll with a spiral flow channel temperature control system according to claim 3, characterized in that: A lapping block (1109) is fixedly arranged on the side surface of the extension plate (1108). Springs (1111) are sleeved on the outer sides of the front and rear ends of the connecting rod (10). The head and tail ends of the springs (1111) are respectively connected to the sliding sleeve (1112) and the connecting plate (8). The sliding sleeve (1112) and the cutting-off plate (12) are rotatably connected. The sliding sleeve (1112) and the connecting rod (10) are slidably connected.

5. The calender roll with a spiral flow channel temperature control system according to claim 1, characterized in that: The docking assembly (15) includes a folding rod (1501) fixedly installed on the surface of the cover plate (3). A top block (1502) is fixedly arranged on the top of the folding rod (1501). A first damping block (1503) is fixedly connected to the front end of the folding rod (1501). A second damping block (1504) is fixedly connected to the front end of the first damping block (1503). A docking groove (1505) is formed between the inner cylinder (1) and the outer cylinder (2). A top groove (1506) is formed on the outer cylinder (2) at the top of the docking groove (1505).

6. The calender roll with a spiral flow channel temperature control system according to claim 5, characterized in that: The first damping block (1503), the second damping block (1504) and the docking block (16) are all made of heat-resistant rubber material. The first damping block (1503) and the docking groove (1505) are in interference fit. The second damping block (1504) is in a frustum of a pyramid structure.

7. The calender roll with a spiral flow channel temperature control system according to claim 6, characterized in that: The shape of the docking block (16) is spherical crown-shaped. The material of the heat-insulating filling block (17) is aerogel material. The outer wall of the heat-insulating filling block (17) fits with the inner walls of the installation grooves (14) on the inner cylinder (1) and the outer cylinder (2). The heat-insulating filling block (17) and the inner cylinder (1) and the outer cylinder (2) form a clamping structure through the groove (13) and the docking block (16).

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