Tensioning device for integrated heat tracing pipe cable production

Abstract

The invention relates to the technical field of cable tensioning devices, and discloses an integrated heat tracing pipe cable production tensioning device which comprises tensioning equipment, the tensioning equipment comprises a bottom plate, the side wall of the bottom plate is provided with a conveying belt and a fixing plate, the bottom of the fixing plate is fixedly connected with an electric push rod, and the output end of the electric push rod is fixedly connected with a mounting plate. Rotating equipment is arranged at the bottom of the mounting plate and comprises pressing plates arranged below the mounting plate, the pressing plates comprise pressure plates and rotating blocks, the pressure plates and the rotating blocks are fixedly connected, rotating grooves are formed in the rotating blocks, the multiple sets of pressing plates are connected through rotating shafts, and the rotating shafts are inserted into the rotating grooves; the scheme has the beneficial effects that the inclination angle of the extrusion plate is adjusted according to the diameter of the heat tracing pipe cable so as to ensure that the heat tracing pipe cable has a certain buffer space when being extruded, and the problem that the heat tracing pipe cable is possibly deformed when being extruded by adopting a plane plate is solved.

Description

Technical Field

[0001] The invention relates to the technical field of cable tensioning devices, in particular to a tensioning device for producing integrated heating pipe cables. Background Art

[0002] Heating pipe cable, commonly known as heating cable, is a specially designed cable used to heat pipes, water pipes, floors, etc. to prevent ice formation or maintain a specific temperature. Its core part contains a heating conductor and an insulation layer. The heating conductor achieves its function through resistance heating, so the resistivity of its conductor material needs to be precisely controlled. Heating cables usually have higher heat resistance, and their insulation materials and heating conductors need to be able to withstand working conditions in high temperature environments.

[0003] Heating cables are mainly used for heating and heat preservation, while ordinary cables are mainly used for power transmission or signal transmission. Heating cables achieve heating functions through their built-in heating conductors. They can maintain the temperature of facilities such as pipelines and water pipes in low-temperature environments to prevent freezing or maintain a specific temperature. The insulation materials and heating conductors of heating cables can withstand higher temperatures to meet the needs of their heating functions. In contrast, the insulation materials and conductors of ordinary cables usually only need to meet the requirements of general working environments. Heating cables are widely used in situations where a specific temperature needs to be maintained, such as pipeline heating in the fields of petroleum, petrochemicals, electric power, and marine engineering. Ordinary cables are more widely used in ordinary occasions such as household appliances and industrial equipment. During the production or installation of heating pipes and cables, crawler tractors are usually used to tighten them to ensure that they fit tightly on the heated pipes or equipment, thereby improving heating efficiency and insulation effects. In addition, tightening the heating pipes and cables can also reduce safety hazards caused by looseness or displacement. However, when the crawler tractor pressurizes the heating pipes and cables, it usually uses a flat plate to squeeze the heating pipes and cables. If the squeezing force is too large, the heating pipes and cables that have just cooled down may be deformed. If the squeezing force is too small, the squeezing may be ineffective. Therefore, it does not meet the existing needs. For this reason, we have proposed an integrated tensioning device for the production of heating pipes and cables. Summary of the invention

[0004] The present invention provides an integrated tensioning device for producing heating pipes and cables, which has the beneficial effect of adjusting the inclination angle of the extrusion plate according to the diameter of the heating pipe and cable to ensure that the heating pipe and cable have a certain buffer space when being extruded, thereby solving the problem mentioned in the above background technology that the heating pipe and cable may be deformed when being extruded by a flat plate.

[0005] The present invention provides the following technical solution: a tensioning device for the production of an integrated heating pipe cable, comprising a tensioning device, wherein the tensioning device comprises a bottom plate, a side wall of the bottom plate is provided with a conveyor belt and a fixed plate, an electric push rod is fixedly connected to the bottom of the fixed plate, an output end of the electric push rod is fixedly connected to a mounting plate, and a rotating device is provided at the bottom of the mounting plate.

[0006] The rotating device includes a pressure plate arranged below the mounting plate, the pressure plate includes a pressure plate and a rotating block, the pressure plate and the rotating block are fixedly connected, a rotating groove is provided in the rotating block, the pressure plates are provided in multiple groups, the multiple groups of pressure plates are connected by a rotating shaft, and the rotating shaft is inserted into the rotating groove.

[0007] As an optional solution for the tensioning device for the production of integrated heating pipe cables described in the present invention, a drive shaft is installed on the side wall of the base plate, and the drive shaft is provided in multiple groups. The side wall of the drive shaft is provided with the conveyor belt, and the fixed plate is fixedly connected to the side wall of the base plate, and the fixed plate is located between the conveyor belts.

[0008] As an optional solution for the tensioning device for the production of integrated heating pipe cables described in the present invention, the rotating device includes a telescopic outer shell fixedly connected to the bottom of the mounting plate, a telescopic inner rod is inserted in the telescopic outer shell, a rotating ball is fixedly connected to the bottom of the telescopic inner rod, the rotating ball is rotatably connected in a rotating ball groove, the rotating ball groove is provided in the pressure plate, the outer side wall of the telescopic inner rod is fixedly connected to a limiting plate, the upper end of the limiting plate is fixedly connected to a telescopic spring, the other end of the telescopic spring is fixedly connected to the bottom of the telescopic outer shell, and the limiting plate is arranged in a ring shape.

[0009] As an optional solution for the tensioning device for the production of integrated heating pipes and cables described in the present invention, the side wall of the bottom plate is provided with a measuring device, and the measuring device is symmetrically arranged in two groups, and the measuring device includes a mounting groove opened in the bottom plate, a measuring shaft is rotatably connected in the mounting groove, a measuring pressure plate is fixedly connected to the side wall of the measuring shaft, the measuring shaft and the mounting groove are connected by a torsion spring, and the bottom surface of the measuring pressure plate is an arc plate.

[0010] As an optional solution for the tensioning device for the production of integrated heating pipe cables described in the present invention, a placement groove is opened on the side wall of the measuring shaft, a cable is installed in the placement groove, a pressure regulating device is provided at the other end of the cable, the cable bypasses the transmission shaft, the transmission shaft is installed on one side of the bottom plate, and the transmission shaft is located obliquely above the measuring shaft.

[0011] As an optional solution for the tensioning device for the production of integrated heating pipe cables described in the present invention, the pressure regulating device includes a fixed rod fixedly connected to the bottom of the mounting plate, a sliding groove is opened in the fixed rod, the rotating shaft is arranged in the sliding groove, and the outer side walls at both ends of the rotating shaft are rotatably connected with a lifting gear rod, one end of the lifting gear rod is meshedly connected with a gear, the gear is meshedly connected with a No. 2 gear rod, the other end of the No. 2 gear rod is fixedly connected with the cable, the gear is arranged in a movable groove, and the movable groove is opened in the mounting plate.

[0012] As an optional solution for the tensioning device for the production of integrated heating pipes and cables described in the present invention, a pressure balancing device is arranged in the mounting plate, and the pressure balancing device includes a pressure groove opened in the mounting plate, a pressure plate is slidably connected in the pressure groove, a pressure rod is fixedly connected to the bottom of the pressure plate, and the other end of the pressure rod is fixedly connected to the top of the telescopic inner rod.

[0013] As an optional solution of the tensioning device for the production of integrated heating pipe cables described in the present invention, a pressure spring is fixedly connected to the top of the pressure plate, and the other end of the pressure spring is fixedly connected to the pressure groove.

[0014] As an optional solution for the tensioning device for the production of integrated heating pipes and cables described in the present invention, a cooling device is arranged between the pressure plate and the rotating shaft, the cooling device includes a water trough and a conveying channel opened in the rotating shaft, the conveying channels are distributed in multiple groups around the circumference, a water storage channel is opened in the rotating block, an infusion channel and a water outlet channel are opened in the pressure plate, the water outlet channels are arranged in multiple groups, the water storage channels, the infusion channels and the water outlet channels are connected to each other, and a water inlet trough is opened at one end of the rotating shaft.

[0015] As an optional solution of the tensioning device for integrated heating pipe and cable production described in the present invention, the bottom of the pressure plate is provided with a trapezoidal groove, and the trapezoidal groove is provided in multiple groups.

[0016] The present invention has the following beneficial effects: 1. The integrated heating pipe and cable production tensioning device, through the rotation design of the pressure plate and the rotating shaft, allows the mounting plate to slide downward synchronously with the pressure plate when driven by the electric push rod. When the pressure plate hits the heating pipe and cable, the center of the pressure plate is subjected to an upward force, and the pressure plate and the mounting plate are connected by a telescopic outer shell and a telescopic inner rod arranged on both sides. Therefore, the pressure plate will bend around the rotating shaft, making the pressure plate appear umbrella-shaped. Through this design, the heating pipe and cable have a certain buffer space after being squeezed, which can effectively prevent the heating pipe and cable from being deformed due to excessive squeezing force, or from being ineffective due to too small squeezing force.

[0017] 2. The tensioning device for the production of the integrated heating pipe and cable, the pressure regulating device is used to adjust the pressure distance of the pressure plate on the heating pipe and cable. Since the heating pipe and cable need to pass through the hot melt extruder and cooling equipment during the production process, during the cooling process, due to various external factors, the diameter of each part of the heating pipe and cable may have a certain deviation. Therefore, different pressures need to be applied to the heating pipe and cable at different parts. Therefore, through the design of the pressure regulating device, different pressures can be effectively adjusted according to the changes in the diameter of the heating pipe and cable. After the measuring plate rotates, the cable will pull the second gear rod upward, and through the transmission of the gear, the lifting gear rod slides downward. Since the bottom of the lifting gear rod is provided with a rotating shaft, the rotating shaft slides downward synchronously. Through this design, the crawler tractor can adjust the pressure of the pressure plate on the conveyor belt according to the different diameters of the heating pipe and cable, effectively ensuring the quality of the heating pipe and cable after production.

[0018] 3. The tensioning device for the production of integrated heating pipes and cables can be connected to external water supply equipment through the water inlet trough during the use of the crawler tractor, and can spray water on the contact parts of the conveyor belt and the pressure plate through the connection of the water trough, the conveying channel, the water storage channel, the infusion channel, and the water outlet channel. Through this design, the heat generated by the friction between the conveyor belt and the pressure plate can be effectively reduced, and the conveyor belt can be effectively prevented from transferring heat to the heating pipes and cables, thereby causing heat extraction of the heating pipes and cables, thereby ensuring the product quality of the heating pipes and cables. The multi-group design of the conveying channel ensures that no matter how the angle between the rotating shaft and the rotating block changes, the connection between the water trough and the water storage channel can be guaranteed, thereby ensuring the supply of water for cooling the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of the present invention viewed from above.

[0021] Figure 3 For the present invention Figure 2 Schematic diagram of the cross-section structure of section 1-1.

[0022] Figure 4 For the present invention Figure 2 Schematic diagram of the cross-section structure of section 2-2.

[0023] Figure 5 For the present invention Figure 1 Enlarged structural diagram at A in the middle.

[0024] Figure 6 It is a schematic diagram of the installation slot structure of the present invention.

[0025] Figure 7 For the present invention Figure 1 Enlarged structural diagram at B in the middle.

[0026] Figure 8 For the present invention Figure 3 Enlarged structural diagram at point C in the middle.

[0027] Fig. 9 For the present invention Figure 4 Enlarged structural diagram at point D in the middle.

[0028] Fig.10 For the present invention Fig. 9 Enlarged structural diagram at E in the middle.

[0029] Fig.11 For the present invention Fig. 9 Enlarged structural diagram at F in the middle.

[0030] In the figure: 1. tensioning device; 11. bottom plate; 12. drive shaft; 13. conveyor belt; 14. fixing plate; 15. electric push rod; 16. mounting plate; 2. rotating device; 21. telescopic housing; 22. telescopic inner rod; 23. rotating ball; 24. pressure plate; 241. pressure plate; 242. rotating block; 243. rotating groove; 25. rotating ball groove; 26. limit plate; 27. rotating shaft; 28. telescopic spring; 3. measuring device; 31. mounting groove; 32. measuring shaft; 33. measuring pressure plate; 34 , torsion spring; 35, placement slot; 36, cable; 37, transmission shaft; 4, pressure regulating device; 41, fixed rod; 42, sliding slot; 43, pulling gear rod; 44, movable slot; 45, gear; 46, second gear rod; 5, pressure balancing device; 51, pressure groove; 52, pressure plate; 53, pressure rod; 54, pressure spring; 6, cooling equipment; 61, water trough; 62, conveying channel; 63, water storage channel; 64, infusion channel; 65, water outlet channel; 66, trapezoidal groove; 67, water inlet groove. DETAILED DESCRIPTION

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

[0032] Example 1: This example is intended to help solve the problem that the heating pipe cable may be deformed when it is squeezed by a flat plate. Figures 1 to 11The tensioning device for the production of integrated heating pipes and cables comprises a tensioning device 1, which comprises a bottom plate 11. The side wall of the bottom plate 11 is provided with a conveyor belt 13 and a fixed plate 14. The bottom of the fixed plate 14 is fixedly connected with an electric push rod 15. The output end of the electric push rod 15 is fixedly connected with a mounting plate 16. The bottom of the mounting plate 16 is provided with a rotating device 2.

[0033] The side wall of the bottom plate 11 is installed with a driving shaft 12 , and the driving shaft 12 is provided with multiple groups. The side wall of the driving shaft 12 is provided with a conveyor belt 13 . The fixing plate 14 is fixedly connected to the side wall of the bottom plate 11 , and the fixing plate 14 is located between the conveyor belts 13 .

[0034] The structure of the tensioning device 1 ensures the normal use of the basic functions of the crawler tractor. As a prior art, the design of multiple sets of drive shafts 12 ensures that there is enough space in the middle of the conveyor belt 13 to install the rotating device 2 and subsequent devices. The drive of the electric push rod 15 ensures that the crawler tractor has sufficient pressure to squeeze the heating cable (the structure involved in the tensioning device 1 is a prior art and is not described in detail in this solution).

[0035] The rotating device 2 includes a pressure plate 24 arranged under the mounting plate 16, and the pressure plate 24 includes a pressure plate 241 and a rotating block 242. The pressure plate 241 and the rotating block 242 are fixedly connected, and a rotating groove 243 is opened in the rotating block 242. There are multiple groups of pressure plates 24, and the multiple groups of pressure plates 24 are connected by a rotating shaft 27. The rotating shaft 27 is inserted into the rotating groove 243.

[0036] The rotating device 2 includes a telescopic outer shell 21 fixedly connected to the bottom of the mounting plate 16, a telescopic inner rod 22 is inserted in the telescopic outer shell 21, a rotating ball 23 is fixedly connected to the bottom of the telescopic inner rod 22, the rotating ball 23 is rotatably connected in a rotating ball groove 25, the rotating ball groove 25 is provided in the pressure plate 24, the outer wall of the telescopic inner rod 22 is fixedly connected to a limiting plate 26, the upper end of the limiting plate 26 is fixedly connected to a telescopic spring 28, and the other end of the telescopic spring 28 is fixedly connected to the bottom of the telescopic outer shell 21.

[0037] Through the rotation design of the pressure plate 24 and the rotating shaft 27, the mounting plate 16 is driven by the electric push rod 15 to slide downward synchronously with the pressure plate 24. When the pressure plate 24 contacts the heating pipe and cable, the center of the pressure plate 24 is subjected to an upward force, and the pressure plate 24 and the mounting plate 16 are connected by the telescopic outer shell 21 and the telescopic inner rod 22 arranged on both sides. Therefore, the pressure plate 24 will bend around the rotating shaft 27, so that the pressure plate 24 is bent into an umbrella shape according to the shape of the heating pipe and cable. Through this design, the heating pipe and cable have a certain buffer space after being squeezed, which can effectively prevent the heating pipe and cable from being deformed due to excessive squeezing force, or from being ineffective due to insufficient squeezing force.

[0038] Example 2: This example is an explanation based on Example 1. For details, please refer to Figures 1 to 11 A measuring device 3 is provided on the side wall of the base plate 11. Two groups of measuring devices 3 are symmetrically provided. The measuring device 3 includes a mounting groove 31 opened in the base plate 11. A measuring shaft 32 is rotatably connected in the mounting groove 31. A measuring pressure plate 33 is fixedly connected to the side wall of the measuring shaft 32. The measuring shaft 32 is connected to the mounting groove 31 through a torsion spring 34.

[0039] A placement groove 35 is opened on the side wall of the measuring shaft 32, and a cable 36 is installed in the placement groove 35. A pressure regulating device 4 is set at the other end of the cable 36. The cable 36 bypasses the transmission shaft 37, and the transmission shaft 37 is installed on one side of the base plate 11. The transmission shaft 37 is located obliquely above the measuring shaft 32.

[0040] The measuring device 3 is designed to measure the diameter of the heating cable and adjust the pressure distance of the pressure plate 24 on the heating cable according to the different diameters of the heating cable.

[0041] When the heating pipe and cable pass through the measuring device 3, the side wall of the heating pipe and cable will contact the bottom of the measuring pressure plate 33, causing the measuring shaft 32 to rotate one end distance. Through the rotation of the measuring shaft 32, the cable 36 tied to the side wall of the measuring shaft 32 can pull up the No. 2 gear rod 46, and then the pressure regulating device 4 adjusts the pressure distance of the pressure plate 24 on the heating pipe and cable. The placement groove 35 is used to install the cable 36. The design of the torsion spring 34 ensures that the measuring pressure plate 33 can always resist the heating pipe and cable, thereby ensuring the stability of the cable 36 pulling up the No. 2 gear rod 46. The design of the transmission shaft 37 is higher than the measuring shaft 32, so that the cable 36 can simultaneously pull up the No. 2 gear rod 46 on both sides, ensuring the sliding stability of the rotating shaft 27.

[0042] The pressure regulating device 4 includes a fixed rod 41 fixedly connected to the bottom of the mounting plate 16, a sliding groove 42 is opened in the fixed rod 41, a rotating shaft 27 is arranged in the sliding groove 42, and a lifting gear rod 43 is rotatably connected to the outer side walls at both ends of the rotating shaft 27, one end of the lifting gear rod 43 is meshedly connected to a gear 45, the gear 45 is meshedly connected to a second gear rod 46, the other end of the second gear rod 46 is fixedly connected to a cable 36, the gear 45 is arranged in a movable groove 44, and the movable groove 44 is opened in the mounting plate 16.

[0043] The pressure regulating device 4 is used to adjust the pressure distance of the pressure plate 24 on the heating cable. Since the heating cable needs to pass through a hot melt extruder and cooling equipment during the production process, during the cooling process, due to various external factors, the diameter of each part of the heating cable may have a certain deviation. Therefore, different pressures need to be applied to different parts of the heating cable. Therefore, through the design of the pressure regulating device 4, different pressure intensities can be effectively adjusted according to the changes in the diameter of the heating cable.

[0044] After the measuring pressure plate 33 rotates, the cable 36 pulls up the second gear rod 46 to slide upward, and the lifting gear rod 43 slides downward through the transmission of the gear 45. Since a rotating shaft 27 is provided at the bottom of the lifting gear rod 43, the rotating shaft 27 slides downward synchronously. Through this design, the crawler tractor can adjust the pressure of the pressure plate 24 on the conveyor belt 13 according to the different diameters of the heating pipe and cable, effectively ensuring the quality of the heating pipe and cable after production. The design of the fixed rod 41 and the sliding groove 42 limits the sliding direction of the rotating shaft 27.

[0045] A pressure balancing device 5 is provided in the mounting plate 16 , and the pressure balancing device 5 includes a pressure groove 51 opened in the mounting plate 16 , a pressure plate 52 is slidably connected in the pressure groove 51 , a pressure rod 53 is fixedly connected to the bottom of the pressure plate 52 , and the other end of the pressure rod 53 is fixedly connected to the top of the telescopic inner rod 22 .

[0046] A pressure spring 54 is fixedly connected to the top of the pressure plate 52 , and the other end of the pressure spring 54 is fixedly connected to the pressure groove 51 .

[0047] Since the pressure regulating device 4 is arranged at the center of the pressure plate 24, when the pressure of the pressure plate 24 on the heating cable is adjusted according to the diameter of the heating cable, only the pressure at the center of the pressure plate 24 can be adjusted. At this time, the two ends of the pressure plate 24 will be lifted up. Therefore, this phenomenon can be balanced by the design of the pressure balancing device 5. When pressure is applied downward at the center of the pressure plate 24 and it slides slightly, the telescopic inner rods 22 on both sides of the pressure plate 24 will slide upward, and the other end of the telescopic inner rod 22 is provided with a pressure spring 54 through the pressure rod 53 and the pressure plate 52. Due to the design of the pressure spring 54, the telescopic inner rod 22 is subjected to the reverse force of the pressure spring 54 while sliding upward, so that the telescopic inner rod 22 cannot slide upward. The design of the pressure spring 54 effectively avoids the situation that the pressure plate 24 slides downward at the center of the pressure plate 24 and lifts up. Through this design, it is effectively ensured that when the middle part of the heating cable is subjected to pressure, the side wall of the heating cable cannot be subjected to the same pressure, resulting in insufficient extrusion.

[0048] Example 3: This example is an explanation based on Example 2. For details, please refer to Figures 1 to 11 A cooling device 6 is arranged between the pressure plate 24 and the rotating shaft 27. The cooling device 6 includes a water trough 61 and a conveying channel 62 opened in the rotating shaft 27. The conveying channel 62 has multiple groups distributed around the circumference. A water storage channel 63 is opened in the rotating block 242. An infusion channel 64 and a water outlet channel 65 are opened in the pressure plate 241. The water outlet channel 65 has multiple groups. The water storage channel 63, the infusion channel 64 and the water outlet channel 65 are interconnected. A water inlet trough 67 is opened at one end of the rotating shaft 27.

[0049] During the use of the crawler tractor, it can be connected to the external water supply equipment through the water inlet trough 67, and water can be sprayed on the contact part between the conveyor belt 13 and the pressure plate 24 through the connection of the water trough 61, the conveying channel 62, the water storage channel 63, the infusion channel 64, and the water outlet channel 65. Through this design, the heat generated by the friction between the conveyor belt 13 and the pressure plate 24 can be effectively reduced, and the conveyor belt 13 can be effectively prevented from transferring heat to the heating pipe and cable, thereby causing the heating pipe and cable to have heat extraction, thereby ensuring the product quality of the heating pipe and cable. The multiple groups of design of the conveying channel 62 ensure that no matter how the angle between the rotating shaft 27 and the rotating block 242 changes, the connection between the water trough 61 and the water storage channel 63 can be guaranteed, thereby ensuring the supply of water for cooling the conveyor belt 13.

[0050] The bottom of the pressure plate 241 is provided with a trapezoidal groove 66 , and a plurality of groups of the trapezoidal grooves 66 are provided.

[0051] The trapezoidal groove 66 reduces the contact area between the pressure plate 24 and the conveyor belt 13, thereby reducing the friction between the pressure plate 24 and the conveyor belt 13, and further reducing the heat generated by the friction between the two. At the same time, the trapezoidal design of the pressure plate 24 allows water to be sprayed through the narrower water outlet channel 65 to the larger trapezoidal groove 66, thereby improving the cooling effect.

[0052] 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.

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A tensioning device for integrated heating pipe and cable production, comprising a tensioning device (1), characterized in that: The tensioning device (1) comprises a bottom plate (11), a side wall of the bottom plate (11) is provided with a conveyor belt (13) and a fixed plate (14), the bottom of the fixed plate (14) is fixedly connected to an electric push rod (15), the output end of the electric push rod (15) is fixedly connected to a mounting plate (16), and the bottom of the mounting plate (16) is provided with a rotating device (2); The rotating device (2) comprises a pressure plate (24) arranged below the mounting plate (16), the pressure plate (24) comprising a pressure plate (241) and a rotating block (242), the pressure plate (241) and the rotating block (242) being fixedly connected, a rotating groove (243) being provided in the rotating block (242), a plurality of groups of the pressure plates (24) being provided, the plurality of groups of the pressure plates (24) being connected via a rotating shaft (27), and the rotating shaft (27) being inserted into the rotating groove (243).

2. The tensioning device for integrated heating pipe and cable production according to claim 1 is characterized in that: A drive shaft (12) is installed on the side wall of the bottom plate (11), and a plurality of drive shafts (12) are provided. The conveyor belt (13) is provided on the side wall of the drive shaft (12). The fixed plate (14) is fixedly connected to the side wall of the bottom plate (11), and the fixed plate (14) is located between the conveyor belts (13).

3. The tensioning device for integrated heating pipe and cable production according to claim 1 is characterized in that: The rotating device (2) comprises a telescopic outer shell (21) fixedly connected to the bottom of the mounting plate (16), a telescopic inner rod (22) inserted in the telescopic outer shell (21), a rotating ball (23) fixedly connected to the bottom of the telescopic inner rod (22), the rotating ball (23) rotatably connected in a rotating ball groove (25), the rotating ball groove (25) being arranged in the pressure plate (24), the outer side wall of the telescopic inner rod (22) fixedly connected to a limiting plate (26), the upper end of the limiting plate (26) fixedly connected to a telescopic spring (28), the other end of the telescopic spring (28) fixedly connected to the bottom of the telescopic outer shell (21).

4. The tensioning device for integrated heating pipe and cable production according to claim 3 is characterized in that: The side wall of the base plate (11) is provided with a measuring device (3), and the measuring device (3) is symmetrically provided in two groups. The measuring device (3) comprises a mounting groove (31) provided in the base plate (11), a measuring shaft (32) rotatably connected in the mounting groove (31), a measuring pressure plate (33) fixedly connected to the side wall of the measuring shaft (32), and the measuring shaft (32) and the mounting groove (31) are connected via a torsion spring (34).

5. The tensioning device for integrated heating pipe and cable production according to claim 4 is characterized in that: A placement groove (35) is provided on the side wall of the measuring shaft (32), a cable (36) is installed in the placement groove (35), a pressure regulating device (4) is provided at the other end of the cable (36), the cable (36) passes around a transmission shaft (37), the transmission shaft (37) is installed on one side of the bottom plate (11), and the transmission shaft (37) is located obliquely above the measuring shaft (32).

6. The tensioning device for integrated heating pipe and cable production according to claim 5 is characterized in that: The pressure regulating device (4) comprises a fixed rod (41) fixedly connected to the bottom of the mounting plate (16), a sliding groove (42) being provided in the fixed rod (41), the rotating shaft (27) being provided in the sliding groove (42), the outer walls at both ends of the rotating shaft (27) being rotatably connected to a lifting gear rod (43), one end of the lifting gear rod (43) being meshingly connected to a gear (45), the gear (45) being meshingly connected to a second gear rod (46), the other end of the second gear rod (46) being fixedly connected to the cable (36), the gear (45) being provided in a movable groove (44), and the movable groove (44) being provided in the mounting plate (16).

7. The tensioning device for integrated heating pipe and cable production according to claim 3 is characterized in that: A pressure balancing device (5) is provided in the mounting plate (16), and the pressure balancing device (5) comprises a pressure groove (51) provided in the mounting plate (16), a pressure plate (52) being slidably connected in the pressure groove (51), a pressure rod (53) being fixedly connected to the bottom of the pressure plate (52), and the other end of the pressure rod (53) being fixedly connected to the top of the telescopic inner rod (22).

8. The tensioning device for integrated heating pipe and cable production according to claim 7 is characterized in that: A pressure spring (54) is fixedly connected to the top of the pressure plate (52), and the other end of the pressure spring (54) is fixedly connected to the pressure groove (51).

9. The tensioning device for integrated heating pipe and cable production according to claim 1 is characterized in that: A cooling device (6) is provided between the pressure plate (24) and the rotating shaft (27). The cooling device (6) comprises a water trough (61) and a conveying channel (62) provided in the rotating shaft (27). The conveying channels (62) are provided in a plurality of groups distributed around the circumference. A water storage channel (63) is provided in the rotating block (242). An injection channel (64) and a water outlet channel (65) are provided in the pressure plate (241). The water outlet channels (65) are provided in a plurality of groups. The water storage channels (63), the injection channels (64) and the water outlet channels (65) are interconnected. A water inlet trough (67) is provided at one end of the rotating shaft (27).

10. The tensioning device for integrated heating pipe and cable production according to claim 9, characterized in that: The bottom of the pressure plate (241) is provided with a trapezoidal groove (66), and a plurality of groups of the trapezoidal grooves (66) are provided.

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