Thermal cycle type calender

Abstract

The utility model relates to the technical field of calenders, and particularly discloses a thermal circulation type calender which comprises a support, a hydraulic rod is fixedly connected to the surface of the support, a pressurizing table is fixedly connected to the output end of the hydraulic rod, a pressurizing hollow roller is installed on the surface of the pressurizing table, and a heating box is fixedly connected to the surface of the support. The water inlet end of the heating box is fixed and communicated with a water inlet pipe, the surface of the support is fixedly connected with a motor, the output end of the motor is provided with a belt assembly, the surface of the support is rotationally connected with a heating roller, and the heating roller is fixedly connected with the belt assembly. The problems that a metal plate is conveyed through slow rotation of a heating pipe, the metal plate is likely to deviate when conveyed, the moving direction of the metal plate needs to be corrected in time by workers, the metal plate is prevented from deviating and being separated from a pressing interval of a heating roller and a pressing empty roller, and operation by the workers is inconvenient are solved.

Description

Technical Field

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

[0002] Calender is a kind of equipment used for surface treatment of metal materials. It presses and stretches the metal materials through a series of rollers and pressure to achieve the effect of flattening and smoothing the surface. Calender is widely used in metal processing industry, including surface treatment and processing of metal materials such as steel, aluminum alloy, copper, etc. It can improve the surface quality of metal materials, increase gloss and flatness, and make them more suitable for manufacturing various products.

[0003] Prior art includes a utility model with publication number CN218404738U, which discloses a heat circulation calender, which relates to the field of textile technology and includes a base, a hollow roller and a soft roller. Two symmetrically arranged support plates are fixedly connected to the upper surface of the base, and a connecting plate is fixedly connected between the two support plates. A water pump 1 is arranged on the upper surface of the connecting plate, and water pipe 1 and water pipe 2 are fixedly connected to the surface of the water pump 1. The end of the water pipe 1 extends into the interior of the heating water tank, which can complete the heat circulation in the calender to ensure the temperature of the hollow roller when calendering the fabric, thereby ensuring the continuous use of the device, and can reheat and reuse the waste water in the hollow roller, thereby reducing the production of waste water, realizing the recovery and utilization of waste heat in the waste water, and at the same time reducing the discharge of waste water in the production process, reducing the pollution of the production environment by waste water, and making the overall production process cleaner and more environmentally friendly.

[0004] The above-mentioned and existing related technologies often have the following defects: when using a calender to process metal sheets, the metal sheets are placed between the heating roller and the pressurized empty roller, and the hydraulic cylinder pushes the pressurizing table to move. The pressurized empty roller on the pressurizing table will squeeze the metal sheets to press the surface of the metal sheets to make the metal surface smooth and flat. Since the metal sheets are transported by slowly rotating the heating tube, the metal sheets are prone to deviation during transportation, and the staff is required to correct the moving direction of the metal sheets in time to prevent the metal sheets from deviating from the pressing area between the heating roller and the pressurized empty roller, which is inconvenient for the staff to operate.

[0005] For this purpose, we propose a thermal cycle calender. Utility Model Content

[0006] The purpose of the utility model is to provide a thermal cycle calender to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat cycle calender, comprising a bracket, a hydraulic rod is fixedly connected to the surface of the bracket, an output end of the hydraulic rod is fixedly connected to a pressurizing platform, a pressurizing empty roller is installed on the surface of the pressurizing platform, a heating box is fixedly connected to the surface of the bracket, a water inlet end of the heating box is fixed and connected to a water inlet pipe, a motor is fixedly connected to the surface of the bracket, a belt assembly is installed on the output end of the motor, a heating roller is rotatably connected to the surface of the bracket, the heating roller is fixedly connected to the belt assembly, a connecting pipe is installed on the surface of the heating roller, and the bracket The surface of the bracket is fixedly connected with a first water pump, the surface of the bracket is fixedly connected with a second water pump, the first water pump and the second water pump are fixed and communicated with a connecting pipe, and the connecting pipe is fixed and communicated with a heating box; a limit device is provided on the surface of the pressurizing platform, and the limit device includes a slide groove, the slide groove is opened on the surface of the pressurizing platform, the inner wall of the slide groove is slidably connected with a sliding frame, the inner wall of the sliding frame is threadedly connected with a screw rod, one end of the screw rod is against the inner wall of the slide groove, the surface of the sliding frame is fixedly connected with the limiting frame, the inner wall of the limiting frame is threadedly connected with a screw, and one end of the screw is rotatably connected to the limiting plate.

[0008] The effect achieved by the above components is: when using the calender to press the metal sheet, the staff slides the sliding frame in the slide slot according to the width of the metal sheet, and then rotates the screw rod through the second handle to push the screw rod against the slide slot, so that the position of the sliding frame and the limit frame is fixed, and then the screw rod is rotated by the first handle, and the screw rod drives the limit plate to move while rotating, and the limit plate is adjusted to a suitable position, and the spacing between the limit plate and the limit frame can pass through and move the metal sheet, and then the metal sheet is passed between the limit frame and the limit plate, inserted between the heating roller and the pressurizing empty roller, the hydraulic cylinder pushes the pressurizing platform, so that the pressurizing empty roller and the heating roller squeeze the metal sheet, the start motor drives the belt assembly to drive the heating roller to rotate, and the rotation of the heating roller drives the metal sheet to move, and the first water pump and the second water pump are started, the first water pump sucks water in the heating roller, and transports it to the heating box through the connecting pipe, the heating pipe in the heating box heats the water, and then the second water pump sucks the heated water in the heating box through the connecting pipe and sends it to the heating roller to realize heat circulation.

[0009] Preferably, a round rod is fixedly connected to the surface of the limiting plate, and the round rod is slidably connected to the limiting frame.

[0010] The effect achieved by the above components is that when the limit plate moves, the round rod will limit the limit plate to prevent the limit plate from rotating with the screw rod, so that when the staff adjusts the position of the limit plate, the limit plate will move smoothly.

[0011] Preferably, a first rotating column is rotatably connected to the surface of the limiting frame, a second rotating column is rotatably connected to the surface of the limiting frame, and a third rotating column is rotatably connected to the surface of the limiting plate.

[0012] The effect achieved by the above components is that when the metal plate moves in the limit frame, the first rotating column, the second rotating column and the third rotating column will all rotate, so that when the metal plate moves in the limit frame, the resistance of the metal plate to movement is reduced, making the movement of the metal plate more stable.

[0013] Preferably, one end of the screw rod is fixedly connected to a first handle, and one end of the lead screw rod is fixedly connected to a second handle.

[0014] The effect achieved by the above components is that the staff can operate the first handle and the second handle to facilitate the staff to rotate the lead screw and the screw.

[0015] Preferably, a protective device is provided on the surface of the water inlet pipe, and the protective device includes a protective cover, and the protective cover covers the upper surface of the water inlet pipe. A fixing hole is opened on the surface of the protective cover, and an L rod is slidably connected to the inner wall of the water inlet pipe. A fixing pin is fixedly connected to the surface of the L rod, and the size of the fixing pin is adapted to the size of the fixing hole. One end of the L rod is fixedly connected to a pressure plate, and the surface of the pressure plate is fixedly connected to a spring, and the other end of the spring is fixedly connected to the water inlet pipe.

[0016] The effect achieved by the above components is: when replacing the circulating water in the heating box, the staff presses the pressure plate to push the L rod to move. At this time, the spring is in a contracted state, the fixing pin is disengaged from the fixing hole, the protective cover is removed, and new water is added to the heating box. After the water is added, the pressure plate is pressed again. After the protective cover is covered on the water inlet pipe, the pressure plate is released, and the spring extends the fixing pin and inserts it into the fixing hole to fix the protective cover in a limited position.

[0017] Preferably, a rectangular groove is formed on the inner wall of the protective cover, and a guide block is fixedly connected to the surface of the water inlet pipe, and the size of the guide block is matched with the size of the rectangular groove.

[0018] The effect achieved by the above components is: the rectangular groove on the protective cover is covered on the water inlet pipe along the guide block, so that when the protective cover is covered on the water inlet pipe, the fixing hole is opposite to the fixing pin, which is convenient for fixing the protective cover.

[0019] Preferably, a sealing ring is fixedly connected to the inner wall of the protective cover.

[0020] The effect achieved by the above components is: the sealing ring in the protective cover improves the sealing performance of the protective cover on the water inlet pipe when the protective cover is covered on the water inlet pipe.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] 1. The utility model, by setting a limit device, when using a calender to perform surface pressing treatment on a metal sheet, by rotating the screw rod to push the limit plate, the metal sheet is located between the limit frame and the limit plate, the movable metal sheet can be limited, labor is liberated, and operation is convenient for the staff. The adjustable limit plate can also limit the metal sheets of different thicknesses. The staff slides the sliding frame and rotates the screw rod to fix the position of the sliding frame, so that the limit frame can limit the metal sheets of different widths.

[0023] 2. The utility model provides a protective device. After adding hot water into the heating box, the staff squeezes the pressure plate and covers the protective cover on the top of the water inlet pipe, so that foreign objects are not easily dropped into the water inlet of the water inlet pipe. The hot circulating water in the heating box can be protected to avoid the hot circulating water in the heating box from being contaminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 For the utility model Figure 1 Another perspective structural diagram of;

[0026] Figure 3 For the utility model Figure 2 A magnified image of point A;

[0027] Figure 4 It is a structural schematic diagram of the limiting device in the utility model;

[0028] Figure 5 For the utility model Figure 4 Schematic diagram of the local structure;

[0029] Figure 6 It is a schematic diagram of the disassembled structure of the water inlet pipe in the utility model.

[0030] In the figure: 1. bracket; 2. hydraulic rod; 3. pressurizing table; 4. pressurizing empty roller; 5. first water pump; 6. second water pump; 7. limiting device; 701. slide groove; 702. sliding frame; 703. screw rod; 704. limiting frame; 705. screw rod; 706. limiting plate; 707. round rod; 708. first rotating column; 709. second rotating column; 710. third rotating column; 711. first handle; 712. second handle; 8. protective device; 81. protective cover; 82. pressure plate; 83. L rod; 84. spring; 85. fixing pin; 86. guide block; 87. rectangular groove; 88. fixing hole; 89. sealing ring; 9. heating roller; 10. connecting pipe; 11. motor; 12. belt assembly; 13. heating box; 14. water inlet pipe. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-Figure 2 The utility model provides a technical solution: a heat circulation calender, comprising a bracket 1, a hydraulic rod 2 is fixedly connected to the surface of the bracket 1, a pressure platform 3 is fixedly connected to the output end of the hydraulic rod 2, a pressure empty roller 4 is installed on the surface of the pressure platform 3, a heating box 13 is fixedly connected to the surface of the bracket 1, a water inlet end of the heating box 13 is fixed and connected with a water inlet pipe 14, a motor 11 is fixedly connected to the surface of the bracket 1, a belt assembly 12 is installed at the output end of the motor 11, a heating roller 9 is rotatably connected to the surface of the bracket 1, the heating roller 9 is fixedly connected to the belt assembly 12, a connecting pipe 10 is installed on the surface of the heating roller 9, a first water pump 5 is fixedly connected to the surface of the bracket 1, a second water pump 6 is fixedly connected to the surface of the bracket 1, the first water pump 5 and the second water pump 6 are fixed and connected to the connecting pipe 10, the connecting pipe 10 is fixed and connected to the heating box 13, a limiting device 7 is provided on the surface of the pressure platform 3, and a protective device 8 is provided on the surface of the water inlet pipe 14.

[0033] The specific arrangement and function of the limit device 7 and the protective device 8 will be described in detail below.

[0034] like Figure 3 and Figure 4 as well as Figure 5As shown, the limiting device 7 includes a slide groove 701, which is opened on the surface of the pressurizing platform 3, and the inner wall of the slide groove 701 is slidably connected to a sliding frame 702, and the inner wall of the sliding frame 702 is threadedly connected to a screw rod 703, one end of the screw rod 703 is against the inner wall of the slide groove 701, and the surface of the sliding frame 702 is fixedly connected to a limiting frame 704, and the inner wall of the limiting frame 704 is threadedly connected to a screw rod 705, and one end of the screw rod 705 is rotatably connected to a limiting plate 706. When the calender is used to press the metal sheet, the staff slides the sliding frame 702 in the slide groove 701 according to the width of the metal sheet, and then rotates the screw rod 703 through the second handle 712 to press the screw rod 703 against the slide groove 7 01, so that the position of the sliding frame 702 and the limiting frame 704 is fixed, and then the screw rod 705 is rotated by the first handle 711, and the screw rod 705 drives the limiting plate 706 to move while rotating, and the limiting plate 706 is adjusted to a suitable position, and the distance between the limiting plate 706 and the limiting frame 704 can pass through and move the metal sheet, and then the metal sheet is passed between the limiting frame 704 and the limiting plate 706, and inserted between the heating roller 9 and the pressurizing empty roller 4, and the hydraulic cylinder pushes the pressurizing platform 3, so that the pressurizing empty roller 4 and the heating roller 9 squeeze the metal sheet, and the motor 11 is started to drive the belt assembly 12 to drive the heating roller 9 to rotate, and the heating roller 9 rotates to drive the metal sheet to move, and the first water pump 5 is started and The second water pump 6 and the first water pump 5 suck water from the heating roller 9 and transport it to the heating box 13 through the connecting pipe 10. The heating pipe in the heating box 13 heats the water, and then the second water pump 6 sucks the heated water from the heating box 13 through the connecting pipe 10 and transports it to the heating roller 9 to realize heat circulation. The surface of the limit plate 706 is fixedly connected with a round rod 707, and the round rod 707 is slidably connected with the limit frame 704. When the limit plate 706 moves, the round rod 707 will limit the limit plate 706 to prevent the limit plate 706 from rotating with the screw 705, so that when the staff adjusts the position of the limit plate 706, the limit plate 706 will move smoothly. The surface of the limit frame 704 is rotatably connected with the first rotating rod 705. The movable column 708 and the surface of the limit frame 704 are rotatably connected to the second rotating column 709, and the surface of the limit plate 706 is rotatably connected to the third rotating column 710. When the metal plate moves in the limit frame 704, the first rotating column 708, the second rotating column 709 and the third rotating column 710 will all rotate, so that when the metal plate moves in the limit frame 704, the resistance to the movement of the metal plate is reduced, and the movement of the metal plate is more stable. One end of the screw rod 705 is fixedly connected to the first handle 711, and one end of the screw rod 703 is fixedly connected to the second handle 712. The staff can operate the first handle 711 and the second handle 712 to facilitate the staff to rotate the screw rod 703 and the screw 705.

[0035] like Figure 6As shown, the protective device 8 includes a protective cover 81, which covers the upper surface of the water inlet pipe 14. A fixing hole 88 is opened on the surface of the protective cover 81. An L rod 83 is slidably connected to the inner wall of the water inlet pipe 14. A fixing pin 85 is fixedly connected to the surface of the L rod 83. The size of the fixing pin 85 matches the size of the fixing hole 88. A pressing plate 82 is fixedly connected to one end of the L rod 83. A spring 84 is fixedly connected to the surface of the pressing plate 82. The other end of the spring 84 is fixedly connected to the water inlet pipe 14. When replacing the circulating water in the heating box 13, the staff presses the pressing plate 82 to push the L rod 83 to move. At this time, the spring 84 is in a contracted state, and the fixing pin 85 is detached from the fixing hole 88. The protective cover 81 is removed, and new water is added to the heating box 13. After the water is added, press again. After the pressure plate 82 and the protective cover 81 are covered on the water inlet pipe 14, the pressure plate 82 is released, and the spring 84 extends the fixing pin 85 to be inserted into the fixing hole 88 to fix the protective cover 81. A rectangular groove 87 is provided on the inner wall of the protective cover 81, and a guide block 86 is fixedly connected to the surface of the water inlet pipe 14. The size of the guide block 86 is matched with the size of the rectangular groove 87. The rectangular groove 87 on the protective cover 81 is covered on the water inlet pipe 14 along the guide block 86, so that when the protective cover 81 is covered on the water inlet pipe 14, the fixing hole 88 is opposite to the fixing pin 85, which is convenient for fixing the protective cover 81. A sealing ring 89 is fixedly connected to the inner wall of the protective cover 81. The sealing ring 89 in the protective cover 81 improves the sealing performance of the protective cover 81 on the water inlet pipe 14 when the protective cover 81 is covered on the water inlet pipe 14.

[0036] Working principle: When using the calender to press the metal sheet, the staff slides the sliding frame 702 in the slide groove 701 according to the width of the metal sheet, and then rotates the screw rod 703 through the second handle 712 to push the screw rod 703 into the slide groove 701, so that the positions of the sliding frame 702 and the limiting frame 704 are fixed, and then rotates the screw rod 705 through the first handle 711. The staff can operate the first handle 711 and the second handle 712 to facilitate the staff to rotate the screw rod 703 and the screw 705. The screw 705 drives the limiting plate 706 to move while rotating. When the limiting plate 706 moves, The round rod 707 will limit the limit plate 706 to prevent the limit plate 706 from rotating with the screw 705, so that when the staff adjusts the position of the limit plate 706, the limit plate 706 will move smoothly, and the limit plate 706 will be adjusted to a suitable position. The distance between the limit plate 706 and the limit frame 704 can pass through and move the metal sheet, and then the metal sheet is passed between the limit frame 704 and the limit plate 706, and inserted between the heating roller 9 and the pressure empty roller 4. The hydraulic cylinder pushes the pressure platform 3, so that the pressure empty roller 4 and the heating roller 9 squeeze the metal sheet, and the motor 11 is started to drive the belt assembly 12 to drive the heating roller 9 to rotate The heating roller 9 rotates to drive the metal sheet to move. When the metal sheet moves in the limiting frame 704, the first rotating column 708, the second rotating column 709 and the third rotating column 710 all rotate, so that when the metal sheet moves in the limiting frame 704, the resistance of the metal sheet to movement is reduced, so that the movement of the metal sheet is more stable. The first water pump 5 and the second water pump 6 are started. The first water pump 5 sucks water from the heating roller 9 and delivers it to the heating box 13 through the connecting pipe 10. The heating pipe (not shown) in the heating box 13 heats the water, and then the second water pump 6 sucks the heated water in the heating box 13 through the connecting pipe 10 and delivers it to the heating box 13. The metal sheet is put into the heating roller 9 to realize heat circulation. By setting the limiting device 7, when the calender is used to perform surface pressing treatment on the metal sheet, the limiting plate 706 is pushed by rotating the screw 705, so that the metal sheet is located between the limiting frame 704 and the limiting plate 706. The moving metal sheet can be limited, which frees up labor and facilitates the operation of the staff. The adjustable limiting plate 706 can also limit the metal sheets of different thicknesses. The staff slides the sliding frame 702 and rotates the screw 703 to fix the position of the sliding frame 702, so that the limiting frame 704 can limit the metal sheets of different widths.

[0037] When replacing the circulating water in the heating box 13, the staff presses the pressure plate 82 to push the L rod 83 to move. At this time, the spring 84 is in a contracted state, the fixing pin 85 is disengaged from the fixing hole 88, the protective cover 81 is removed, and new water is added to the heating box 13. After the water is added, the pressure plate 82 is pressed again to cover the rectangular groove 87 on the protective cover 81 on the water inlet pipe 14 along the guide block 86, so that when the protective cover 81 is covered on the water inlet pipe 14, the fixing hole 88 is opposite to the fixing pin 85, which is convenient for fixing the protective cover 81. After the protective cover 81 is covered on the water inlet pipe 14, the pressure plate is released. 82, the spring 84 extends the fixing pin 85 and inserts it into the fixing hole 88 to fix the protective cover 81 in position, and the sealing ring 89 in the protective cover 81 improves the sealing performance of the protective cover 81 on the water inlet pipe 14 when the protective cover 81 is covered on the water inlet pipe 14. By setting the protective device 8, after adding hot water to the heating box 13, the staff squeezes the pressing plate 82 to cover the protective cover 81 on the top of the water inlet pipe 14, so that the water inlet of the water inlet pipe 14 is not easy to fall into foreign objects, and the hot circulating water in the heating box 13 can be protected to prevent the hot circulating water in the heating box 13 from being contaminated.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal cycle calender, comprising a support (1), a hydraulic rod (2) fixedly connected to the surface of the support (1), an output end of the hydraulic rod (2) fixedly connected to a pressurizing platform (3), a pressurizing empty roller (4) installed on the surface of the pressurizing platform (3), a heating box (13) fixedly connected to the surface of the support (1), a water inlet end of the heating box (13) fixedly connected and connected to a water inlet pipe (14), a motor (11) fixedly connected to the surface of the support (1), a belt assembly (12) installed on the output end of the motor (11), and the support ( 1) is rotatably connected to the surface of a heating roller (9), the heating roller (9) is fixedly connected to a belt assembly (12), a connecting pipe (10) is installed on the surface of the heating roller (9), a first water pump (5) is fixedly connected to the surface of the bracket (1), a second water pump (6) is fixedly connected to the surface of the bracket (1), the first water pump (5) and the second water pump (6) are fixedly connected to and communicated with the connecting pipe (10), the connecting pipe (10) is fixedly connected to and communicated with a heating box (13), a limiting device (7) is provided on the surface of the pressurizing platform (3), and the characteristics are as follows: The limiting device (7) comprises a slide groove (701), wherein the slide groove (701) is provided on the surface of the pressurizing platform (3), the inner wall of the slide groove (701) is slidably connected to a sliding frame (702), the inner wall of the sliding frame (702) is threadedly connected to a screw rod (703), one end of the screw rod (703) abuts against the inner wall of the slide groove (701), the surface of the sliding frame (702) is fixedly connected to a limiting frame (704), the inner wall of the limiting frame (704) is threadedly connected to a screw rod (705), and one end of the screw rod (705) is rotatably connected to a limiting plate (706).

2. The thermal cycle calender according to claim 1, characterized in that: A round rod (707) is fixedly connected to the surface of the limiting plate (706), and the round rod (707) is slidably connected to the limiting frame (704).

3. The thermal cycle calender according to claim 1, characterized in that: The surface of the limiting frame (704) is rotatably connected to a first rotating column (708), the surface of the limiting frame (704) is rotatably connected to a second rotating column (709), and the surface of the limiting plate (706) is rotatably connected to a third rotating column (710).

4. The thermal cycle calender according to claim 1, characterized in that: One end of the screw rod (705) is fixedly connected to a first handle (711), and one end of the screw rod (703) is fixedly connected to a second handle (712).

5. The thermal cycle calender according to claim 1, characterized in that: The surface of the water inlet pipe (14) is provided with a protective device (8), the protective device (8) comprising a protective cover (81), the protective cover (81) covering the upper surface of the water inlet pipe (14), the surface of the protective cover (81) being provided with a fixing hole (88), the inner wall of the water inlet pipe (14) being slidably connected with an L-rod (83), the surface of the L-rod (83) being fixedly connected with a fixing pin (85), the size of the fixing pin (85) being matched with the size of the fixing hole (88), one end of the L-rod (83) being fixedly connected with a pressing plate (82), the surface of the pressing plate (82) being fixedly connected with a spring (84), the other end of the spring (84) being fixedly connected with the water inlet pipe (14).

6. The thermal cycle calender according to claim 5, characterized in that: A rectangular groove (87) is provided on the inner wall of the protective cover (81), and a guide block (86) is fixedly connected to the surface of the water inlet pipe (14), wherein the size of the guide block (86) is matched with the size of the rectangular groove (87).

7. The thermal cycle calender according to claim 5, characterized in that: A sealing ring (89) is fixedly connected to the inner wall of the protective cover (81).

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