CN111391290B - Calender - Google Patents

Abstract

The invention provides a calender with simple structure, good heating effect, convenient adjustment and good vamp pressing effect, which comprises a frame, wherein an upper loop wire and a lower loop wire are arranged on the frame, the lower loop wire is positioned below the upper loop wire, a heating device for heating vamp materials is arranged between the upper loop wire and the lower loop wire on the frame, a pressure regulating device for regulating vamp materials to press is arranged on the frame, a first driving device for driving the upper loop wire and the lower loop wire to move is arranged on the frame, the heating device comprises a heating plate, a U-shaped heat conducting plate and a heat insulating plate, the heat insulating plate is positioned below the U-shaped heat conducting plate, the heating plate is arranged between the heat insulating plate and the U-shaped heat conducting plate, the heating plate resists against the heat insulating plate, the U-shaped heat conducting plate is connected with a fixing plate, and the heat insulating plate is fixedly connected with the frame.

Description

Calender

Technical Field

The invention relates to the technical field of shoe machinery, in particular to a calender.

Background

At present, in the shoe making industry, the fly-knitted vamp can be said to be a popular wind direction of the shoe industry, whether the shoe is Adidas, naoks, anzuo or 361 degrees, and the shoe style mainly pushed in the years is the vamp. Fly-knitted vamp shoes of many footwear brands are also being pushed out successively. The flat woven fly vamp is firstly formed from abroad, then has been popular for a period of time abroad, people feel surprised to see the real object at first, surprisingly, products are good, and then 3D fly vamp is a popular trend in the future, and particularly, some high-end jogging shoes and casual shoes are suitable for the vamp. And domestic manufacturers have also begun to use 3D vamp thermal fuses and are continually developing.

In the manufacture of 3D fly-knitted uppers, calenders are an indispensable production instrument. The 3D vamp thermal fuse inside the 3D fly-knitted vamp can be melted and pressed with the external vamp, so that the vamp can form a vamp with elasticity, stability, ventilation and toughness. The calender is therefore important in the production of 3D fly-knitted uppers and in the production thereof. In vamp lamination, the vamp is adhered to the vamp through the pressure of upper and lower high temperature annular belts (namely upper and lower belts) and the temperature of upper and lower heating plates of a calender. While conventional calenders are capable of satisfying the press work of shoe uppers, the following drawbacks still exist:

1. The upper press roller and the upper and lower cloth guide rollers of the calender are fixed, and the tightening or loosening of the whole high-temperature annular belt is regulated by the movement of the lower press roller, but the vamp is always a fixed space at the inlet of the high-temperature annular belt and the middle part, so that the vamp is not really extruded in the whole bonding process, and the vamp bonding effect is poor.

2. The heating effect of the heating plate is poor, so that the bonding effect of the vamp is poor. And the heating plate is heated and is easy to deform and damage, so that the working efficiency is influenced, and the maintenance cost is increased.

Disclosure of Invention

Therefore, aiming at the problems, the invention provides the calender which has the advantages of simple structure, good heating effect, convenient adjustment and good vamp pressing effect.

In order to achieve the technical problems, the solution adopted by the invention is a calender, which comprises a frame, wherein an upper loop wire and a lower loop wire are arranged on the frame, the lower loop wire is positioned below the upper loop wire, a heating device for heating vamp materials is arranged between the upper loop wire and the lower loop wire on the frame, a pressure regulating device for regulating vamp materials to press is arranged on the frame, a first driving device for driving the upper loop wire and the lower loop wire to move is arranged on the frame, the heating device comprises a heating plate, a U-shaped heat conducting plate and a heat insulating plate, the heat insulating plate is positioned below the U-shaped heat conducting plate, the heating plate is arranged between the heat insulating plate and the U-shaped heat conducting plate, the heating plate resists against the U-shaped heat conducting plate, the U-shaped heat conducting plate is connected with a heat insulating plate fixing plate, and the heat insulating plate is fixedly connected with the frame.

The U-shaped heat conducting plate is further improved in that a plurality of notches for preventing the U-shaped heat conducting plate from deforming are formed in the U-shaped heat conducting plate.

The heat insulation board is a plurality of U-shaped heat insulation boards, and each U-shaped heat insulation board is fixedly arranged in the U-shaped heat conduction board.

The heat insulation plate is further improved by further comprising a support rod, wherein the support rod is fixedly arranged on the frame, the support rod is positioned below the heat insulation plate, a plurality of adjusting bolts are arranged on the support rod, and the adjusting bolts are resisted with the heat insulation plate.

The upper loop wire comprises an upper press roller, an upper cloth guide roller and an upper carrier roller which are rotatably arranged on the frame, an upper high-temperature annular belt is wound on the upper press roller, the upper cloth guide roller and the upper carrier roller, the lower loop wire comprises a lower press roller, a lower cloth guide roller and a lower carrier roller which are rotatably arranged on the frame, and a lower high-temperature annular belt is wound on the lower press roller, the lower cloth guide roller and the lower carrier roller.

The pressure regulating device comprises a plurality of first movable plates and a plurality of second movable plates, wherein the first movable plates are hinged on the frame and are respectively positioned at two ends of the frame, a lower pressing roller on a lower loop is rotatably arranged on the first movable plates, the second movable plates are hinged on the frame and are respectively positioned at two ends of the frame, a lower cloth guide roller is arranged on the second movable plates, the other ends of the second movable plates are hinged with connecting plates, the other ends of the connecting plates are hinged on the first movable plates, and the first movable plates are connected with a movable device for driving the first movable plates to move.

The movable device comprises a driving rod, the driving rod is fixedly arranged between the first movable plates, a rotating shaft is rotatably arranged on the frame, a rotating plate is fixedly arranged on the rotating shaft, a connecting pin is fixedly arranged on the rotating plate, a connecting rod is hinged between the driving rod and the connecting pin, and a second driving device for driving the rotating plate to rotate is arranged on the frame.

The device is further improved in that an upper first tensioning roller, an upper second tensioning roller, a lower first tensioning roller and a lower second tensioning roller which are used for tensioning the upper high-temperature annular belt and the lower high-temperature annular belt are respectively arranged at the left end and the right end of the frame, a first adjusting device used for adjusting the tensioning degree of the upper high-temperature annular belt and the lower high-temperature annular belt is arranged on the upper first tensioning roller and the lower first tensioning roller, and a second adjusting device used for adjusting the tensioning degree of the upper high-temperature annular belt and the lower high-temperature annular belt is arranged on the upper second tensioning roller and the lower second tensioning roller.

The first adjusting device comprises a sliding block, the upper first tensioning roller and the lower first tensioning roller are fixedly arranged on the sliding block, a sliding groove is formed in the frame, the sliding block can be slidably arranged in the sliding groove, a screw rod is rotatably arranged on the frame, a thread block is connected onto the screw rod in a threaded mode, and the sliding block is fixedly connected with the thread block.

The second adjusting device comprises a plurality of reset springs, a plurality of adjusting grooves are formed in the frame, the extending shafts of the upper first tensioning roller and the lower first tensioning roller are arranged in the adjusting grooves, the reset springs are arranged in the adjusting grooves, one ends of the reset springs are resisted with the extending shafts of the upper first tensioning roller and the lower first tensioning roller, and the other ends of the reset springs are resisted with the inner wall of the adjusting grooves.

By adopting the technical scheme, the invention has the beneficial effects that:

1. The heating plate is arranged between the U-shaped heat conducting plate and the U-shaped heat insulating plate, so that the heating effect can be improved, the heat loss of the heating plate is prevented, the energy is saved, and the working efficiency of the heating plate is improved.

2. The U-shaped heat insulation plate is provided with a plurality of heat insulation plates and is locked at the bottom of the U-shaped heat conduction plate through screws, so that heat dissipation of the heating plate can be further prevented, the working efficiency of the heating plate is improved, and the U-shaped heat insulation plate and the U-shaped heat conduction plate can be conveniently installed and maintained. At the same time, the method comprises the steps of, can also prevent the heat insulation board from being long-term and is deformed by heat expansion and cold contraction.

3. The notch on the U-shaped heat conducting plate can prevent the U-shaped heat conducting plate from being deformed due to stress during expansion and contraction, so that the U-shaped heat conducting plate is heated unevenly after being heated, the heating effect of the heat conducting plate is affected, and the heating effect of vamp materials is indirectly affected. Meanwhile, the service life of the U-shaped heat conducting plate can be prolonged, and the maintenance cost is reduced.

4. The adjusting bolts on the supporting rods support the components such as the U-shaped heat insulation plate, the heating plate and the U-shaped heat conduction plate, so that the stability of the U-shaped heat conduction plate can be improved, the U-shaped heat conduction plate is further prevented from being pressed and being deformed easily during heating operation, and the U-shaped heat conduction plate cannot be deformed due to overlarge pressure during operation. And the distance between the U-shaped heat conducting plate and the high-temperature annular belt can be adjusted by the adjusting bolts, so that the heating effect of the heat conducting plate can be extremely good.

5. The interval adjustment can be carried out on the lower compression roller and the lower cloth guide roller, so that the vamp pressing effect of pressing the adjusted upper and lower compression rollers and the upper and lower cloth guide rollers is better, and the bonding effect is also better.

6. Simple structure and regulation convenience, the actuating lever can adjust with lower cloth guide roller down the compression roller simultaneously.

7. During adjustment, the two ends of the lower pressing roller and the two ends of the lower cloth guide roller are synchronously adjusted, so that the distance between the upper pressing roller and the lower pressing roller and the vamp can be adjusted, the phenomenon that the local area of the vamp is uneven in pressing and poor in pressing effect can not occur, and the phenomenon that the upper high-temperature belt is not in running is further prevented from being off tracking by adjustment.

8. The first adjusting device not only can facilitate the installation of the high-temperature annular belt, but also can adjust the tightness of the belt, can also adjust the deviation of the high-temperature annular belt, and is beneficial to the stable operation of the machine. Meanwhile, the efficiency and the pressing effect of the vamp pressing can be improved.

9. The mounting hole can be directly taken out from the mounting hole after the first tensioning roller and the lower first tensioning roller are damaged, and then the mounting hole is filled, so that the whole machine is prevented from being detached for maintenance and replacement, the mounting and maintenance are facilitated, and the efficiency is greatly improved.

10. The reset spring in the second adjusting device can compress the reset spring to give off space when the high-temperature endless belt is installed. Not only can be further convenient the installation of high temperature clitellum, practice thrift the use of high temperature clitellum, the cost of saving that makes it can be more, can be with high temperature clitellum tensioning when reset spring drives first tensioning roller and lower first tensioning roller return moreover, make its better operation, better carry out the vamp pressfitting. In addition, in the running process of the high-temperature endless belt, the stretching function of the reset spring can buffer the tension force of the running of the high-temperature endless belt, so that the friction of the belt is reduced, and the service life of the belt is prolonged.

Drawings

Fig. 1 is a schematic view showing a sectional structure of a calender according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic view of a voltage regulator according to an embodiment of the invention.

FIG. 3 is a schematic sectional view of a heating device according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a heating device according to an embodiment of the invention.

Fig. 5 is a schematic structural diagram of a second adjusting device according to an embodiment of the invention.

Fig. 6 is a schematic structural diagram of a first adjusting device according to an embodiment of the invention.

Fig. 7 is a schematic partial structure of a first driving device according to an embodiment of the invention.

Fig. 8 is a schematic view of a calender structure according to an embodiment of the invention.

Fig. 9 is a schematic structural diagram of a second adjusting device according to an embodiment of the present invention.

Detailed Description

The invention will now be further described with reference to the drawings and specific examples.

Example 1

The embodiment of the invention discloses a calender, which comprises a frame 1, wherein an upper press roll 2, an upper cloth guide roll 4 and an upper carrier roll 7 are rotatably arranged on the frame 1 through bearings, an upper high-temperature annular belt 8 is wound on the upper press roll 2, the upper cloth guide roll 4 and the upper carrier roll 7, a lower press roll 3, a lower cloth guide roll 5 and a lower carrier roll 6 are rotatably arranged below the upper high-temperature annular belt 8 on the frame 1 through bearings, a lower high-temperature annular belt 9 is wound on the lower press roll 3, the lower cloth guide roll 5 and the lower carrier roll 6, a first sprocket 114 is fixedly arranged on an output shaft of the upper press roll 2, a second sprocket 113 is fixedly arranged on an output shaft 31 of the lower press roll 3, a first driving motor (not shown in the figure) is arranged on the frame 1, a driving chain wheel 116 is fixedly arranged on the shaft of the first driving motor, a chain 115 is wound between the first chain wheel 114 and the driving chain wheel 116, the second chain wheel 113 is meshed with the chain 115, and the second chain wheel 113 is positioned outside the chain 115, wherein the first driving motor drives the driving chain wheel 116 to rotate, and the driving chain wheel 116 drives the first chain wheel 114 and the second chain wheel 113 to rotate under the action of the chain 115, so that the upper press roller 2 and the lower press roller 3 are driven to rotate, and the upper high-temperature annular belt 8 and the lower high-temperature annular belt 9 reciprocate in the frame 1 under the transmission of the upper press roller 2 and the lower press roller 3;

The heating device 10 for heating vamp materials is arranged between the upper high-temperature annular belt 8 and the lower high-temperature annular belt 9 on the rack 1, the heating device 10 comprises a heating plate 102, U-shaped heat conducting plates 101 and heat insulating plates 103, the heat insulating plates 103 are arranged below the U-shaped heat conducting plates 101, the heating plate 102 is arranged between the heat insulating plates 103 and the U-shaped heat conducting plates 101, the heating plate 102 resists against the heat insulating plates 103, the heat insulating plates 103 are a plurality of U-shaped heat insulating plates, the U-shaped heat insulating plates are arranged below the U-shaped heat conducting plates 101 and are locked in the U-shaped heat conducting plates 101 through screws, the heating plate 102 is arranged between the U-shaped heat insulating plates and the U-shaped heat conducting plates 101, the heating plate 102 resists against the U-shaped heat conducting plates 101, a plurality of notches 106 for preventing the U-shaped heat conducting plates 101 from deforming are formed in the U-shaped heat conducting plates 101, a support rod 1 is further arranged on the rack 1, a plurality of support rods 104 are arranged below the U-shaped heat insulating plates 104, and a plurality of support rods 105 are arranged on the U-shaped heat insulating plates, and the support rods are arranged on the rack 104. Wherein the heating plate 102 is arranged between the U-shaped heat conducting plate 101 and the U-shaped heat insulating plate, so that the heating effect can be improved, the heat loss of the heating plate 102 is prevented, the energy is saved, and the working efficiency of the heating plate 102 is improved. The U-shaped heat insulation plate is provided with a plurality of heat insulation plates and is locked at the bottom of the U-shaped heat conduction plate 101 through screws, so that heat dissipation of the heating plate 102 can be further prevented, the heating working efficiency is improved, and the U-shaped heat insulation plate and the U-shaped heat conduction plate 101 can be conveniently installed and maintained. Meanwhile, the heat insulation plate 103 can be prevented from being heated for a long time to expand with heat and contract with cold, the notch 106 on the U-shaped heat insulation plate 101 can prevent the U-shaped heat insulation plate 101 from being deformed under force when expanding with heat and contracting with cold, and the heat conduction effect of the heat insulation plate is affected after the U-shaped heat insulation plate 101 is heated, so that the heating effect of vamp materials is indirectly affected. Meanwhile, the service life of the U-shaped heat conducting plate 101 can be prolonged, the maintenance cost is reduced, the U-shaped heat insulating plate, the heating plate 102, the U-shaped heat conducting plate 101 and other components are supported by the adjusting bolts 105 on the supporting rods 104, the stability of the U-shaped heat conducting plate 101 on the frame 1 is improved, and the heating device 10 cannot be deformed due to overlarge pressure of the high-temperature annular belt when the heating device works. The distance between the U-shaped heat conducting plate 101 and the high-temperature annular belt can be adjusted by the adjusting bolts 105, so that the heat conducting effect of the heat conducting plate can achieve the best effect;

The frame 1 is equipped with the pressure regulating device that is used for adjusting compression roller 3 and lower cloth guide roller 5 messenger vamp better pressfitting down, the pressure regulating device includes two first fly boards 15 and two second fly boards 16, first fly boards 15 through the round pin axle articulated in frame 1 is last and be located respectively frame 1 both ends, compression roller 3 locates down on the first fly boards 15, second fly boards 16 through the round pin axle articulated in frame 1 is located respectively frame 1 both ends, lower cloth guide roller 5 locates on the second fly boards 16, the other end of second fly boards 16 through the round pin axle articulated have connecting plate 17, the other end of connecting plate 17 through the round pin axle articulated in on the first fly boards 15, fixedly connected with actuating lever 22 between two first fly boards 15, be equipped with axis of rotation 20 through the bearing is rotatable on the frame 1, fixedly on the rotating plate 21 be equipped with connecting pin 19, actuating lever 22 with the worm wheel is articulated between the connecting pin 19 be equipped with the axis of rotation 18 respectively in frame 1, it is not equipped with the worm (in the graph) to show that the driving shaft is not equipped with in the graph 1) the second output shaft is not shown in the graph (the graph is not showing the graph). Wherein, the actuating lever 22 can drive simultaneously down the regulation of compression roller 3 and lower fabric guide roller 5, and the vamp effect of the upper and lower compression roller 3 and upper and lower fabric guide roller 5 pressfitting after the messenger's regulation is better, and the bonding effect is also better. And when adjusting, the two ends of the lower press roller 3 and the lower cloth guide roller 5 are synchronously adjusted, so that the phenomenon of uneven lamination and poor lamination effect of local areas of the vamp can not occur, and the phenomenon of deviation of a high-temperature annular belt wound on the upper surface of the lower press roller is not caused. The working principle is as follows:

when the lower press roller and the lower cloth guide roller are regulated, the second driving motor drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the rotating shaft 20 to rotate, the rotating plate 21 on the rotating shaft 20 rotates along with the rotation, the connecting pin 19 rotates, when the connecting pin 19 rotates clockwise downwards, the connecting rod 18 is pulled to move downwards, the driving rod 22 is further driven to move downwards, under the action of the driving rod 22, one ends of the first movable plate 15 and the second movable plate 16 move downwards, the other ends of the first movable plate 15 and the second movable plate 16 move upwards, the lower press roller and the lower cloth guide 5 at the other ends of the first movable plate 15 and the second movable plate 16 move upwards along with the upward movement, the upward press roller and the upward cloth guide roller are close, and meanwhile, the distance between the two press rollers and the cloth guide roller is regulated, namely the pressure of the two press rollers and the cloth guide roller on the vamp is regulated.

In order to enable better operation and maintenance of the machine and improve the working efficiency of the machine, the left and right ends of the frame 1 are respectively provided with an upper first tensioning roller 13, an upper second tensioning roller 11, a lower first tensioning roller 14 and a lower second tensioning roller 12 for tensioning the upper high-temperature annular belt 8 and the lower high-temperature annular belt 9, the upper first tensioning roller 13 and the lower first tensioning roller 14 are respectively provided with a first adjusting device for adjusting the tightness of the upper high-temperature annular belt 8 and the lower high-temperature annular belt 9, the first adjusting device comprises a sliding block 132, the frame 1 is provided with two sliding grooves 131, the sliding blocks 132 are slidably arranged in the sliding grooves 131, the shafts of the upper first tensioning roller 13 and the lower first tensioning roller 14 are respectively locked on the sliding blocks 132 through screws, the frame 1 is rotatably provided with a screw 134 through bearings, the screw 134 is in threaded connection with a threaded block 133, the sliding block 132 is locked on the threaded block 133, the threaded block 133 can be driven to slide by rotating the screw 134, and the sliding block 132 is driven to slide, so as to regulate the tightness and the deviation of the annular belt, the upper second tensioning roller 11 and the lower second tensioning roller 12 are provided with second regulating devices for regulating the tightness of the upper high temperature annular belt 8 and the lower high temperature annular belt 9, the second regulating devices comprise four return springs 112, the frame 1 is provided with four regulating grooves 111, the extending shafts of the upper first tensioning roller 13 and the lower first tensioning roller 14 are respectively arranged in the regulating grooves 111, the return springs 112 are arranged in the regulating grooves 111, one end of each return spring 112 is resisted with the extending shafts of the upper first tensioning roller 13 and the lower first tensioning roller 14, and the other end of each return spring 112 is resisted with the inner wall of the regulating groove 111, wherein, the first adjusting device can be convenient for installing the high-temperature annular belt, can also adjust the deviation of the high-temperature annular belt, is favorable for the stable operation of a machine, increases the efficiency and the pressing effect of vamp pressing, and the reset spring 112 in the second adjusting device can compress the reset spring 112 to give up space when installing the high-temperature annular belt. Not only can be further convenient the installation of high temperature clitellum, practice thrift the use of high temperature clitellum, the cost that makes it can be more practice thrift, can be with high temperature clitellum tensioning when reset spring 112 drives first tensioning roller 13 and lower first tensioning roller 14 return moreover, make its better operation, better carry out the vamp pressfitting. And in the operation process of the high-temperature endless belt, the stretching function of the return spring 112 can reduce the friction of the belt and prolong the service life of the belt for buffering the tension force of the operation of the high-temperature endless belt.

In order to prevent heat loss, improve the working efficiency of the machine and save energy, the upper cover of the frame 1 is provided with a heat-insulating cover 25. The heat-insulating cover 25 can not tightly reduce the temperature loss in the machine, can also seal the machine, and improves the safety of the machine in operation.

In order to improve the operation efficiency, the front section of the frame 1 is provided with a feeding platform 24, and the rear end of the frame 1 is provided with a discharging platform 23. Feeding platform 24 is capable of facilitating placement of upper material and stabilizing delivery of upper material. The discharging platform 23 can conveniently store the pressed vamp materials. The feeding platform 24 and the discharging platform 23 can also be beneficial to keeping the vamp material clean and improving the processing quality of the vamp material.

Example two

According to fig. 9, based on the above scheme, the second adjusting device in the present invention may further include an adjusting screw 3', an adjusting slot 2' is formed on the frame 1', an installation hole 4' connected with the adjusting slot 2 'and convenient for installing the tensioning roller is further formed on the frame 1', a first fixing block 7 'is fixedly disposed at one end of the adjusting screw 3', the first fixing block 7 'is respectively locked on the upper first tensioning roller 11' and the lower first tensioning roller (not illustrated in the drawing) through a screw 8', a second fixing block 5' is fixedly disposed on the frame 1', the other end of the adjusting screw 3' penetrates through the second fixing block 5 'and penetrates out of the second fixing block 5', a nut 6 'is sleeved on the adjusting screw 3', and the nut 6 'resists against the second fixing block 5'. When the belt tension and deviation are adjusted, the adjusting screw 3 'slides in the adjusting groove 2' with the upper first tensioning roller 11 'and the lower first tensioning roller only by rotating the nut 6'. The tightness of the belt can be adjusted through the adjusting screw 3', winding and installation of the belt are facilitated, belt deviation can be further adjusted through the adjusting screw 3', the belt can be stably rotated, and accordingly the vamp has a good lamination effect. Meanwhile, the adjusting screw 3' can be adjusted to adjust the belt to reach the optimal tension, so that the running efficiency of the machine is improved. The mounting hole 4 'connected with the adjusting groove 2' can be directly taken out from the mounting hole after the first tensioning roller and the lower first tensioning roller are damaged and then is assembled, so that the whole machine is prevented from being disassembled for maintenance and replacement, the installation and maintenance are facilitated, and the efficiency is greatly improved.

While the basic principles and main features of the present invention and advantages thereof have been shown and described, it will be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are described merely by way of illustration of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a calender, includes the frame, be equipped with loop and lower loop in the frame, lower loop is located go up the loop below, be equipped with the heating device who is used for heating vamp material between loop and the lower loop in the frame, be equipped with the pressure regulating device who is used for adjusting vamp material pressfitting in the frame, be equipped with the drive in the frame go up loop and lower loop motion's first drive arrangement, its characterized in that: the heating device comprises a heating plate, U-shaped heat conducting plates and heat insulating plates, wherein the heat insulating plates are positioned below the U-shaped heat conducting plates, the heating plate is arranged between the heat insulating plates and the U-shaped heat conducting plates, the heating plate resists against the heat insulating plates, the U-shaped heat conducting plates are connected with heat insulating plate fixing plates, the heat insulating plates are fixedly connected with the machine frame, the heat insulating plates are a plurality of U-shaped heat insulating plates, each U-shaped heat insulating plate is fixedly arranged in the U-shaped heat conducting plates, an upper loop comprises an upper press roller, an upper cloth guide roller and an upper carrier roller which are rotatably arranged on the machine frame, an upper high-temperature annular belt is wound on the upper press roller, a lower cloth guide roller and a lower carrier roller which are rotatably arranged on the machine frame, the lower loop comprises a lower high-temperature annular belt which is wound on the lower cloth guide roller and the lower carrier roller, the pressure regulating device comprises a plurality of first movable plates and a plurality of second movable plates, the first movable plates are hinged on the machine frame and the second movable plates are respectively arranged on the two ends of the machine frame, the upper loop and the second movable plates are respectively hinged on the two ends of the movable plates are arranged on the movable frame, the other end of the second movable plate is hinged with a connecting plate, the other end of the connecting plate is hinged to the first movable plate, a movable device used for driving the first movable plate to move is connected to the first movable plate, the movable device comprises a driving rod, the driving rod is fixedly arranged between the first movable plates, a rotating shaft is rotatably arranged on the frame, a rotating plate is fixedly arranged on the rotating shaft, a connecting pin is fixedly arranged on the rotating plate, a connecting rod is hinged between the driving rod and the connecting pin, and a second driving device used for driving the rotating plate to rotate is arranged on the frame.

2. The calender of claim 1 wherein the U-shaped heat transfer plate is provided with notches to prevent deformation of the U-shaped heat transfer plate.

3. The calender of claim 1 further comprising a support bar fixedly disposed on the frame, the support bar being disposed below the heat shield, the support bar having a plurality of adjustment bolts thereon, the adjustment bolts being disposed to resist the heat shield.

4. A calender according to claim 1, wherein an upper first tensioning roller, an upper second tensioning roller, a lower first tensioning roller and a lower second tensioning roller for tensioning the upper high-temperature annular belt and the lower high-temperature annular belt are respectively arranged at the left end and the right end of the frame, a first adjusting device for adjusting the tensioning degree of the upper high-temperature annular belt and the lower high-temperature annular belt is arranged on the upper first tensioning roller and the lower first tensioning roller, and a second adjusting device for adjusting the tensioning degree of the upper high-temperature annular belt and the lower high-temperature annular belt is arranged on the upper second tensioning roller and the lower second tensioning roller.

5. The calender of claim 4 wherein the first adjustment means comprises a slider, the upper first tension roller and the lower first tension roller are fixedly disposed on the slider, a chute is formed in the frame, the slider is slidably disposed in the chute, a screw is rotatably disposed on the frame, a threaded block is screwed on the screw, and the slider is fixedly connected with the threaded block.

6. The calender of claim 5 wherein said second adjustment means comprises a plurality of return springs, said housing having a plurality of adjustment grooves, said upper and lower first tensioning rollers having their respective extension shafts disposed within said adjustment grooves, said return springs having one ends thereof abutting said upper and lower first tensioning rollers and having their respective other ends abutting said inner walls of said adjustment grooves.