Interval-adjustable calender with thermal composite forming function

Abstract

The invention relates to a distance-adjustable calender with a thermal composite forming function, and belongs to the technical field of calenders, the distance-adjustable calender comprises a rack main body, and a first limiting cover, a second limiting cover, a conversion rod, a first electric heating wire, a second electric heating wire and an injection pipe are matched for use; when the calender roll assists the calender in calendaring a product, the first limiting cover and the second limiting cover are connected to the surface of the calender roll in a sleeving mode, materials with different widths are conveyed in a centering and limiting mode, heat diffusing on the surface of the calender roll is purified and recycled through the arrangement of the suction holes, and the heat of the calender roll is recycled through the inclined arrangement of the injection pipe. The purified heat acts on the overturning face of the calendering roller, the unused surface of the calendering roller is preheated, the situation that the temperature difference between materials and the surface of the calendering roller is large, and the calendering quality is affected is reduced, the lengths of different electric heating wires are switched and adjusted through a switching rod, the electric heating wires are made to adapt to the materials with different widths, and the resource utilization rate of the heat is increased.

Description

Technical Field

[0001] This invention relates to the intelligent manufacturing equipment industry, and more specifically to the field of calendering technology. In particular, it relates to a calender with adjustable spacing and a thermal composite forming function. Background Technology

[0002] Calenders belong to the intelligent manufacturing equipment industry. A calender consists of two or more rollers arranged according to the heating method. They can be divided into cold calenders and hot calenders. Cold calenders are suitable for materials that do not require heating, such as graphite films, graphite sheets, microwave absorbing materials, shielding materials, magnetic materials, and non-ferrous metals. Hot calenders are further divided into water heating, electric heating, oil heating, and electromagnetic heating. All of these methods involve pressing and stretching materials such as rubber, silicone rubber, silicone rubber, phase change materials, PTFE, or plastics into sheets of a certain thickness and surface shape at a specific temperature. They can also be used to coat fiberglass or steel wire fabrics with adhesive.

[0003] In the prior art, a calender with publication number CN117183189B relates to the field of molecular material processing technology. This calender includes an operating table, a connecting column fixedly connected to the side of the operating table, a mounting frame fixedly connected to the side of the connecting column, and a fixing mechanism fixedly connected to the top of the mounting frame. Through the setting of a first fixing mechanism and a second fixing mechanism, the calender rotates clamping jaws one and two. Clamping jaws one and two can cooperate with fixed jaws one and two to lock the adjusting mechanism, preventing positional deviations caused by instability due to internal threaded connections after prolonged use. This avoids a decrease in the calendering accuracy of the calender. The two clamping jaws can fix the adjusting mechanism at different positions, preventing inaccurate positioning. Two rotating rods are provided, forming a triangle with the roller, preventing roller deflection after long-term use and thus avoiding a deterioration in the calendering effect.

[0004] In the prior art, a calendering machine with publication number CN119458736B includes a worktable, two supports, and two rollers; two baffles made of hard aluminum strips are set on the worktable; a spacing adjustment component is set between the two supports to adjust the spacing between the two baffles; a support frame is set on the worktable, and a flattening block is vertically slidably connected to the support frame. The support frame is provided with a control component for vertically sliding the flattening block. Flattening wheels that can match the top surface of the support plate are connected to both ends of the flattening block. The protruding part in the middle of the flattening block is slidably inserted between the two baffles. A horizontally placed support plate is connected to the baffle, and a spreading plate that matches the rollers is set on the support plate. This invention can reduce the overflow and waste of raw materials during calendering and improve the flatness of the sheet edges.

[0005] However, while existing calenders can effectively calender materials, the heating wires inside the calender rolls have a fixed length. Since calenders often process materials of varying widths, the fixed length of the heating wires leads to wasted heat. Furthermore, attempts to reduce heat waste suffer from poor synchronous positioning of materials of different widths, reducing the stability of material transport on the calender rolls and affecting calendering quality. Additionally, the heat recovery from the calender roll surface is poor when positioning materials on both sides, and the recovery of heat is not effectively applied back to the calender roll surface, reducing preheating and resulting in high calender roll surface temperatures that negatively impact the quality of calendering and fail to meet user needs. Therefore, we propose a calender with adjustable spacing and a thermal composite forming function. Summary of the Invention

[0006] To address the problems mentioned in the background, this invention provides a calender with adjustable spacing and a thermal composite forming function. This solves the problems mentioned in the background art, such as the fixed length of the electric heating wire causing waste of heat generated in other parts, poor synchronous positioning of materials of different widths when reducing heat waste, and poor heat purification and recovery of heat diffused on the surface of the calender roll when positioning the material on both sides.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows: A calender with adjustable spacing and thermal composite forming function includes a frame body. A lower calendering roller is rotatably connected to the outer wall of the frame body. A first electric push rod is provided on the top of the frame body. A lifting block is slidably connected to one end of the first electric push rod and the outer wall of the frame body. An upper calendering roller located above the lower calendering roller is rotatably connected to the outer wall of the lifting block. A PLC operation screen is provided on the side wall of the frame body. The outer wall of the frame body is slidably connected to a sliding frame. The outer wall of the sliding frame is provided with a limiting mechanism. The limiting mechanism includes a sliding rod, a fixed connecting frame, and a first limiting cover. The outer wall of the sliding frame is slidably connected to the sliding rod. The outer wall of the sliding rod is fixedly connected to the fixed connecting frame. The outer wall of the fixed connecting frame is rotatably connected to the first limiting cover. The outer wall of the sliding rod is slidably connected to a sliding block. The outer wall of the sliding block is fixedly connected to an adjusting connecting frame. The outer wall of the adjusting connecting frame is rotatably connected to a second limiting cover. The inner wall of the first limiting cover is provided with a suction hole, and the outer wall of the first limiting cover is fixedly connected to a recovery hose via a connecting pump. One end of the recovery hose is fixedly connected to an air supply pipe, and one end of the air supply pipe is provided with an electrostatic dust removal box. The outer wall of the electrostatic dust removal box is fixedly connected to an air supply pipe via a connecting pump, and one end of the air supply pipe is fixedly connected to a spray pipe. The outer wall of the fixed connecting frame is equipped with an adjustment mechanism. Through the coordinated use of the first limiting cover, the second limiting cover, the conversion rod, the first electric heating wire, the second electric heating wire, and the spray pipe, when the product is calendered by the calender roll assisted calender, the first and second limiting covers are sleeved on the surface of the calender roll to center and limit the conveying of materials of different widths. The heat diffused on the surface of the calender roll is purified and recovered by the setting of the suction hole. With the inclination setting of the spray pipe, the purified heat is applied to the flipping surface of the calender roll to preheat the unused surface of the calender roll, reducing the large temperature difference between the material and the surface of the calender roll, which affects the calendering quality. Furthermore, the conversion rod can switch and adjust the length of different electric heating wires to adapt the heating wires to materials of different widths, improving the utilization rate of heat resources.

[0008] Preferably, a lifting groove is provided at the connection between the outer wall of the frame body and the lifting block, and a conveying gap is provided in the middle of the upper and lower calendering rollers.

[0009] Preferably, the outer wall of the sliding frame is provided with a first servo motor, the output end of the first servo motor is fixedly connected to a first threaded rod that is threadedly connected to the outer wall of the sliding rod, the outer wall of the sliding rod is slidably connected to a first limiting rod that is fixedly connected to the outer wall of the sliding frame, and a sliding groove is provided at the connection between the outer wall of the sliding rod and the sliding block. Through the cooperation of the first threaded rod, the sliding rod and the sliding frame, when the calender roll is used daily, the sliding frame is driven to slide, so that the limiting cover is fitted onto the surface of the calender roll. By driving the first threaded rod, the sliding rod slides along the outer wall of the first limiting rod to adjust the spacing between the limiting covers, and the materials of different widths are limited and centered for conveying and processing.

[0010] Preferably, there are two sets of the first threaded rods, and the rotation directions of the two sets of the first threaded rods are opposite. There are also two sets of the first and second limiting covers, and the rotation directions of the two sets of the first and second limiting covers are opposite. The outer walls of the first and second limiting covers are equipped with a visual monitoring module that is electrofused to the PLC operation screen.

[0011] Preferably, the injection tubes are inclined toward the side of the downward calendering roll, and there are two sets of injection tubes, which are staggered with each other.

[0012] Preferably, a third servo motor is provided at the end of the lower calender roll, and a first gear is fixedly connected to the output end of the third servo motor. A second gear is meshed with the outer wall of the first gear and rotatably connected to the inner wall of the lower calender roll. A conversion rod is fixedly connected to the rotation center of the second gear through a rotating shaft. A first electric heating wire is installed on the outer wall of the conversion rod, and a second electric heating wire is installed on the outer wall of the conversion rod.

[0013] Preferably, the first and second electric heating wires are set at different lengths on the conversion rod, and the third servo motor is electrofused to the PLC operation panel.

[0014] Preferably, the adjusting mechanism includes a threaded slide rod and a swing rod. A second servo motor is provided on the outer wall of the fixed connecting frame. A second threaded rod is fixedly connected to the output end of the second servo motor. A threaded slide rod that is slidably connected to the outer wall of the fixed connecting frame is threaded to the outer wall of the second threaded rod. A swing rod that is rotatably connected to the outer wall of the fixed connecting frame is slidably connected to the outer wall of the threaded slide rod. Through the cooperative use of the threaded slide rod, the swing rod, and the first limiting cover, when the limiting cover needs to be fitted onto the outer wall of the calender roll, it drives the second threaded rod to rotate. The sliding of the threaded slide rod drives the swing rod to rotate. The rotation of the swing rod drives the limiting cover to rotate relative to each other. Under the continuous sliding of the sliding frame, the calender roll is completely fitted onto the outer wall of the limiting cover, achieving the effects of heat purification and recovery on the surface of the calender roll and centering and limiting the conveying of materials of different widths.

[0015] Preferably, a limiting groove is provided at the connection between the outer wall of the swing rod and the threaded slide rod, and a fixing groove is provided at the connection between the outer wall of the fixed connecting frame and the threaded slide rod. The rotation center of the swing rod is fixedly connected to the rotation center of the first limiting cover through a rotating shaft.

[0016] Preferably, the outer wall of the frame body is fixedly connected to a second electric push rod that is fixedly connected to the outer wall of the sliding frame, and the outer wall of the sliding frame is slidably connected to a second limiting rod that is fixedly connected to the outer wall of the frame body.

[0017] Compared with the prior art, the beneficial effects of this invention are as follows: 1. This invention, through the combined use of a first limiting cover, a second limiting cover, a switching rod, a first electric heating wire, a second electric heating wire, and an injection pipe, enables the calendering of products using a calendering roller-assisted calendering machine. The first and second limiting covers, fitted onto the surface of the calendering roller, allow for centered and limited transport of materials of different widths. The suction holes purify and recover heat diffused on the surface of the calendering roller. The inclined injection pipe allows the purified heat to act on the rotating surface of the calendering roller, preheating the unused surface and reducing the impact of large temperature differences between the material and the calendering roller surface on calendering quality. Furthermore, the switching rod allows for the adjustment of different electric heating wire lengths, enabling the heating wires to adapt to materials of varying widths and improving the utilization rate of heat resources. 2. The present invention uses the cooperation of the first threaded rod, the sliding rod and the sliding frame to drive the sliding frame to slide during the daily use of the calender roll, so that the limiting cover is fitted onto the surface of the calender roll. By driving the first threaded rod, the sliding rod slides along the outer wall of the first limiting rod to adjust the spacing between the limiting covers and to limit and center the conveying and processing of materials of different widths. 3. This invention utilizes the combined use of a threaded slide bar, a swing rod, and a first limiting cover. When the limiting cover needs to be fitted onto the outer wall of the calender roll, it drives the second threaded rod to rotate. The sliding of the threaded slide bar drives the swing rod to rotate, and the rotation of the swing rod causes the limiting cover to rotate relative to the other side. With the continuous sliding of the sliding frame, the calender roll is completely fitted onto the outer wall of the limiting cover, achieving the effects of heat purification and recovery on the surface of the calender roll and centering and limiting the transport of materials of different widths. Attached Figure Description

[0018] Figure 1 This is a 3D physical image of a calender with adjustable spacing and thermal composite forming function according to the present invention. Figure 2 This is a schematic diagram of the overall front view of the present invention; Figure 3 This is a schematic diagram of the overall rear view structure of the present invention; Figure 4 This is a schematic diagram of the overall side view structure of the present invention; Figure 5 This is a schematic diagram of the position distribution structure of the conversion rod according to the present invention; Figure 6 This is a schematic diagram of the connection structure between the first threaded rod and the sliding rod of the present invention; Figure 7 This is a schematic diagram of the suction hole location distribution structure of the present invention; Figure 8 This is a schematic diagram of the positional distribution of the air supply pipe and the injection pipe of the present invention; Figure 9This is a schematic diagram of the connection structure between the sliding block and the sliding rod of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point A in the diagram; Figure 11 This is a schematic diagram of the relative position distribution structure of the injection pipes of the present invention.

[0019] The labels in the attached diagram are: 1. Main frame; 2. Lower calendering roller; 3. First electric push rod; 4. Lifting block; 5. Lifting groove; 6. PLC operation panel; 7. Upper calendering roller; 8. Sliding frame; 9. Limiting mechanism; 901. First servo motor; 902. First threaded rod; 903. Sliding rod; 904. First limiting rod; 905. Fixed connecting frame; 906. First limiting cover; 907. Suction hole; 908. Adjusting connecting frame; 909. Sliding block; 910. Slide groove; 911. Second limiting cover; 912. Recycling hose ; 913, Air supply pipe; 914, Electrostatic dust removal box; 915, Air supply pipe; 916, Injection pipe; 10, Adjustment mechanism; 1001, Second servo motor; 1002, Second threaded rod; 1003, Threaded slide bar; 1004, Fixed groove; 1005, Swing rod; 1006, Limiting groove; 11, Second electric push rod; 12, Second limiting rod; 13, Third servo motor; 14, First gear; 15, Second gear; 16, Conversion rod; 17, First electric heating wire; 18, Second electric heating wire. Detailed Implementation

[0020] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0021] Example 1: Please refer to Figures 1 to 11 The present invention relates to the intelligent manufacturing equipment industry, providing a calender with adjustable spacing and thermal composite forming function, including a frame body 1, a lower calendering roller 2 rotatably connected to the outer wall of the frame body 1, a first electric push rod 3 provided on the top of the frame body 1, a lifting block 4 slidably connected to one end of the first electric push rod 3, an upper calendering roller 7 located above the lower calendering roller 2 rotatably connected to the outer wall of the lifting block 4, a PLC operation screen 6 provided on the side wall of the frame body 1, a lifting groove 5 provided at the connection between the outer wall of the frame body 1 and the lifting block 4, and a conveying gap provided in the middle of the upper calendering roller 7 and the lower calendering roller 2; A sliding frame 8 is slidably connected to the outer wall of the main frame 1. A limiting mechanism 9 is provided on the outer wall of the sliding frame 8. The limiting mechanism 9 includes a sliding rod 903, a fixed connecting frame 905, and a first limiting cover 906. The sliding rod 903 is slidably connected to the outer wall of the sliding frame 8. The fixed connecting frame 905 is fixedly connected to the outer wall of the sliding rod 903. The first limiting cover 906 is rotatably connected to the outer wall of the fixed connecting frame 905. A sliding block 909 is slidably connected to the outer wall of the sliding rod 903. An adjusting connecting frame 908 is fixedly connected to the outer wall of the sliding block 909. A second limiting cover 911 is rotatably connected to the outer wall of the adjusting connecting frame 908. A first servo motor 901 is provided on the outer wall of the sliding frame 8. The output end of 01 is fixedly connected to a first threaded rod 902 that is threaded to the outer wall of the sliding rod 903. The outer wall of the sliding rod 903 is slidably connected to a first limiting rod 904 that is fixedly connected to the outer wall of the sliding frame 8. A groove 910 is provided at the connection between the outer wall of the sliding rod 903 and the sliding block 909. Two sets of first threaded rods 902 are provided, and the rotation directions of the two sets of first threaded rods 902 are opposite. Two sets of first limiting covers 906 and second limiting covers 911 are provided, and the rotation directions of the two sets of first limiting covers 906 and second limiting covers 911 are opposite. The outer walls of the first limiting covers 906 and second limiting covers 911 are provided with a visual monitoring module that is electrofused to the PLC operation screen 6. The inner wall of the first limiting cover 906 has a suction hole 907. The outer wall of the first limiting cover 906 is fixedly connected to a recovery hose 912 via a connecting pump. One end of the recovery hose 912 is fixedly connected to an air supply pipe 913. One end of the air supply pipe 913 is equipped with an electrostatic dust collector 914. The outer wall of the electrostatic dust collector 914 is fixedly connected to an air supply pipe 915 via a connecting pump. One end of the air supply pipe 915 is fixedly connected to a spray pipe 916. The spray pipe 916 is inclined towards the side of the downward calendering roller 2. There are two sets of spray pipes 916, which are staggered. The outer wall of the fixed connecting frame 905 is equipped with an adjustment mechanism 10. The adjustment mechanism 10 is connected to the first limiting cover 906, the second limiting cover 911, the conversion rod 16, and the first electric heating wire 17. The combined use of the second electric heating wire 18 and the jet tube 916 enables the centering and limiting of materials of different widths during the calendering process of the product assisted by the calendering roll. The first limiting cover 906 and the second limiting cover 911 are sleeved on the surface of the calendering roll to purify and recover the heat diffused on the surface of the calendering roll through the suction hole 907. With the inclined setting of the jet tube 916, the purified heat is applied to the flipping surface of the calendering roll to preheat the unused surface of the calendering roll, reducing the large temperature difference between the material and the surface of the calendering roll, which affects the calendering quality. Furthermore, the switching and adjustment of different electric heating wire lengths through the conversion rod 16 allows the electric heating wire to be adapted to materials of different widths, improving the utilization rate of heat resources.

[0022] like Figure 5As shown, a third servo motor 13 is provided at the end of the lower calender roll 2. A first gear 14 is fixedly connected to the output end of the third servo motor 13. A second gear 15, which is rotatably connected to the inner wall of the lower calender roll 2, meshes with the outer wall of the first gear 14. A conversion rod 16 is fixedly connected to the rotation center of the second gear 15 through a rotating shaft. A first electric heating wire 17 and a second electric heating wire 18 are installed on the outer wall of the conversion rod 16. The first electric heating wire 17 and the second electric heating wire 18 are set at different lengths on the conversion rod 16. The third servo motor 13 is electrofused to the PLC operation screen 6. When the vision monitoring module detects that materials of different widths are being conveyed in the middle of the calender roll, the operation of the third servo motor 13 drives the rotation of the first gear 14, which in turn drives the second gear 15 to rotate. Under the rotation of the conversion rod 16, the electric heating wires of different lengths are switched to rotate, so that the electric heating wires can be adapted to heat materials of different widths, thereby reducing the heat loss rate.

[0023] like Figure 9 and Figure 10 As shown, the adjustment mechanism 10 includes a threaded slide rod 1003 and a swing rod 1005. A second servo motor 1001 is provided on the outer wall of the fixed connecting frame 905. A second threaded rod 1002 is fixedly connected to the output end of the second servo motor 1001. The outer wall of the second threaded rod 1002 is threadedly connected to the threaded slide rod 1003, which is slidably connected to the outer wall of the fixed connecting frame 905. The outer wall of the threaded slide rod 1003 is slidably connected to the swing rod 1005, which is rotatably connected to the outer wall of the fixed connecting frame 905. A limit groove 1006 is provided at the connection between the outer wall of the swing rod 1005 and the threaded slide rod 1003. A fixed groove 1004 is provided at the position. The rotation center of the swing rod 1005 is fixedly connected to the rotation center of the first limiting cover 906 through a rotating shaft. Through the cooperation of the threaded slide rod 1003, the swing rod 1005 and the first limiting cover 906, when the limiting cover needs to be fitted onto the outer wall of the calender roll, the second threaded rod 1002 is driven to rotate. The sliding of the threaded slide rod 1003 drives the swing rod 1005 to rotate. The rotation of the swing rod 1005 causes the limiting cover to rotate relative to each other. Under the continuous sliding of the sliding frame 8, the calender roll is completely fitted onto the outer wall of the limiting cover, which has the effect of purifying and recovering heat on the surface of the calender roll and centering and limiting the conveying of materials of different widths.

[0024] like Figure 6 and Figure 7 As shown, a second electric push rod 11 is fixedly connected to the outer wall of the frame body 1 and to the outer wall of the sliding frame 8. A second limiting rod 12 is slidably connected to the outer wall of the sliding frame 8 and to the outer wall of the frame body 1. This facilitates the horizontal adjustment of the position of the limiting cover by the setting of the sliding frame 8 and the second electric push rod 11.

[0025] Working principle: like Figure 1-11 As shown, when the calender is in use, according to the thickness of the material to be processed, the first electric push rod 3 is opened to drive the lifting block 4 to slide along the inner wall of the lifting groove 5, so that the relative distance between the lower calender roller 2 and the upper calender roller 7 is adjusted, and the material conveying gap of different thicknesses is prepared for adjustment. According to the needs of conveying and processing materials of different widths on the calendering roll, the third servo motor 13 is turned on, and the rotation of the first gear 14 drives the second gear 15 to rotate. The rotation of the second gear 15, through the rotation of the conversion rod 16, drives the use position of the first electric heating wire 17 and the second electric heating wire 18 of different lengths to switch, so that the electric heating wires of different lengths can be adapted to materials of different widths, thereby reducing the heat loss rate. When processing materials of different widths to adapt electric heating wires of different lengths, the second electric push rod 11 is turned on, which drives the sliding frame 8 to slide along the outer wall of the second limiting rod 12, and the limiting cover is pre-fitted onto the outer wall of the calendering roll. The second servo motor 1001 is turned on, and the rotation of the second threaded rod 1002 drives the threaded slide rod 1003 to slide along the outer wall of the fixed groove 1004 and the limiting groove 1006, so that the swing rod 1005 rotates along the outer wall of the connecting frame, and drives the limiting cover to rotate relative to each other, so that the limiting cover completely fits the calendering roll. Then, depending on the material width, the first servo motor 901 is turned on, and the rotation of the first threaded rod 902 drives the sliding rod 903 to slide along the outer wall of the first limiting rod 904, so that the sliding rod 903 slides relative to each other, adjusting the spacing of the limiting cover, and limiting the use of materials of different widths to improve the stability of the material conveying on the calender roll. The connecting pump on the recovery hose 912 is turned on, so that the heat diffused on the surface of the calender roll is recovered into the electrostatic dust collector 914 through the suction hole 907. With the negative electrode roller, positive electrode plate and filter screen set inside the electrostatic dust collector 914, the impurities carried in the recovered hot air are purified, and the purified hot air is delivered to the injection pipe 916 through the air supply pipe 915, so that the purified heat acts on the turning part of the calender roll, preheating the surface of the calender roll, and preventing the surface of the calender roll from having a large temperature difference, which would affect the efficiency of the material processing on the calender. At the same time, when the upper calendering roller 7 is driven to rise, the sliding block 909 is driven to slide along the inner wall of the groove 910, so that the limiting cover on the lower calendering roller 2 and the upper calendering roller 7 can be adjusted relative to each other, reducing the interference of the upper calendering roller 7 with the limiting cover when it is raised or lowered.

[0026] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A calender with adjustable spacing and a thermocomposite forming function, comprising a frame body (1), characterized in that: The outer wall of the frame body (1) is rotatably connected to a lower calendering roller (2), and the top of the frame body (1) is provided with a first electric push rod (3). One end of the first electric push rod (3) is fixedly connected to a lifting block (4) that is slidably connected to the outer wall of the frame body (1). The outer wall of the lifting block (4) is rotatably connected to an upper calendering roller (7) located above the lower calendering roller (2). The side wall of the frame body (1) is provided with a PLC operation screen (6). The outer wall of the frame body (1) is slidably connected to a sliding frame (8). The outer wall of the sliding frame (8) is provided with a limiting mechanism (9). The limiting mechanism (9) includes a sliding rod (903), a fixed connecting frame (905), and a first limiting cover (906). The outer wall of the sliding frame (8) is slidably connected to the sliding rod (903). The outer wall of the sliding rod (903) is fixedly connected to the fixed connecting frame (905). The outer wall of the fixed connecting frame (905) is rotatably connected to the first limiting cover (906). The outer wall of the sliding rod (903) is slidably connected to a sliding block (909). The outer wall of the sliding block (909) is fixedly connected to an adjusting connecting frame (908). The outer wall of the adjusting connecting frame (908) is rotatably connected to a second limiting cover (911). The inner wall of the first limiting cover (906) is provided with a suction hole (907). The outer wall of the first limiting cover (906) is fixedly connected to a recovery hose (912) via a connecting pump. One end of the recovery hose (912) is fixedly connected to an air supply pipe (913). One end of the air supply pipe (913) is provided with an electrostatic dust removal box (914). The outer wall of the electrostatic dust removal box (914) is fixedly connected to an air supply pipe (915) via a connecting pump. One end of the air supply pipe (915) is fixedly connected to a spray pipe (916). The outer wall of the fixed connecting frame (905) is provided with an adjustment mechanism (10).

2. A calender with adjustable spacing and thermal composite forming function according to claim 1, characterized in that: The outer wall of the frame body (1) and the connection between the lifting block (4) are provided with a lifting groove (5), and a conveying gap is provided in the middle of the upper calendering roller (7) and the lower calendering roller (2).

3. A calender with adjustable spacing and thermocomposite forming function according to claim 1, characterized in that: The outer wall of the sliding frame (8) is provided with a first servo motor (901). The output end of the first servo motor (901) is fixedly connected to a first threaded rod (902) that is threaded to the outer wall of the sliding rod (903). The outer wall of the sliding rod (903) is slidably connected to a first limiting rod (904) that is fixedly connected to the outer wall of the sliding frame (8). The connection between the outer wall of the sliding rod (903) and the sliding block (909) is provided with a groove (910).

4. A calender with adjustable spacing and thermocomposite forming function according to claim 3, characterized in that: The first threaded rod (902) is provided in two sets, and the rotation directions of the two sets of the first threaded rod (902) are opposite. The first limit cover (906) and the second limit cover (911) are both provided in two sets, and the rotation directions of the two sets of the first limit cover (906) and the second limit cover (911) are both set in opposite directions. The outer walls of the first limit cover (906) and the second limit cover (911) are provided with a visual monitoring module that is electrofused to the PLC operation screen (6).

5. A calender with adjustable spacing and thermocomposite forming function according to claim 1, characterized in that: The injection tube (916) is inclined to the side of the lower calendering roll (2), and there are two sets of injection tubes (916), which are staggered with each other.

6. A calender with adjustable spacing and thermocomposite forming function according to claim 1, characterized in that: The end of the lower calendering roller (2) is provided with a third servo motor (13). The output end of the third servo motor (13) is fixedly connected to a first gear (14). The outer wall of the first gear (14) is meshed with a second gear (15) that is rotatably connected to the inner wall of the lower calendering roller (2). The rotation center of the second gear (15) is fixedly connected to a conversion rod (16) through a rotating shaft. The outer wall of the conversion rod (16) is equipped with a first electric heating wire (17) and a second electric heating wire (18).

7. A calender with adjustable spacing and thermocomposite forming function according to claim 6, characterized in that: The first electric heating wire (17) and the second electric heating wire (18) are set at different lengths on the conversion rod (16), and the third servo motor (13) is electrofused to the PLC operation panel (6).

8. A calender with adjustable spacing and thermocomposite forming function according to claim 1, characterized in that: The adjustment mechanism (10) includes a threaded slide rod (1003) and a swing rod (1005). The outer wall of the fixed connecting frame (905) is provided with a second servo motor (1001). The output end of the second servo motor (1001) is fixedly connected to a second threaded rod (1002). The outer wall of the second threaded rod (1002) is threadedly connected to the threaded slide rod (1003) which is slidably connected to the outer wall of the fixed connecting frame (905). The outer wall of the threaded slide rod (1003) is slidably connected to the swing rod (1005) which is rotatably connected to the outer wall of the fixed connecting frame (905).

9. A calender with adjustable spacing and thermocomposite forming function according to claim 8, characterized in that: A limiting groove (1006) is provided at the connection between the outer wall of the swing rod (1005) and the threaded slide rod (1003). A fixing groove (1004) is provided at the connection between the outer wall of the fixed connecting frame (905) and the threaded slide rod (1003). The rotation center of the swing rod (1005) is fixedly connected to the rotation center of the first limiting cover (906) through a rotating shaft.

10. A calender with adjustable spacing and thermocomposite forming function according to claim 1, characterized in that: The outer wall of the frame body (1) is fixedly connected to a second electric push rod (11) which is fixedly connected to the outer wall of the sliding frame (8), and the outer wall of the sliding frame (8) is slidably connected to a second limiting rod (12) which is fixedly connected to the outer wall of the frame body (1).

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