Cooling and shaping equipment for manufacturing communication cable insulating sheath

Abstract

The invention discloses communication cable insulation sheath manufacturing, cooling and shaping equipment which comprises a spraying mechanism, the spraying mechanism comprises an outer annular hollow cylinder, an inner annular hollow cylinder and a water injection element, and the inner annular hollow cylinder is rotatably mounted in the outer annular hollow cylinder; the outer annular hollow cylinder is arranged in the inner annular hollow cylinder, the outer annular hollow cylinder is communicated with an inner cavity of the inner annular hollow cylinder, the water injection element is fixedly installed on the outer wall of the outer annular hollow cylinder, the water injection element pushes the inner annular hollow cylinder to rotate when injecting water into the outer annular hollow cylinder, and a plurality of spray heads are fixedly installed on the inner wall of the inner annular hollow cylinder; the spray head sprays water in a rotary water spraying mode, the water can uniformly fall on the outer wall of the cable insulation protection sleeve, compared with the spraying mode, the cooling speed is more uniform, meanwhile, the inner annular hollow cylinder is driven to rotate through the power of water flow, driving equipment does not need to be used for driving, and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of communication cables, in particular to a cooling and shaping device for manufacturing an insulation sheath of a communication cable. Background Art

[0002] The cable insulation sheath is made of rubber material through high-temperature molding. It has excellent electrical properties, is resistant to aging, and is resistant to high and low temperatures. It can be used under a variety of working conditions and can effectively prevent power outages caused by human contact, electricity theft, contact with small animals or debris, and chemical gas corrosion, thereby avoiding the huge economic losses caused by this. After high-temperature molding, the insulation sheath needs to be cooled, and people usually put it in a cooling room for cooling.

[0003] The existing communication cable insulation sheath manufacturing cooling and shaping equipment may encounter the following problems during use:

[0004] 1. Existing cooling and shaping equipment for manufacturing insulation sheaths of communication cables usually adopts water tanks or spraying methods for cooling. When cooling by water tanks, the water in the water tank absorbs heat and heats up, resulting in a decrease in its cooling rate. When cooling by spraying, the sprayed water contacts the cable insulation sheath at points, resulting in uneven cooling at each position and poor cooling effect.

[0005] 2. When existing cooling and shaping equipment for manufacturing insulation sheaths of communication cables adopts a spraying method for cooling, the cooling speed can usually only be adjusted by adjusting the water pressure, and the adjustment range of the cooling speed is relatively small.

[0006] Through patent search, the following prior art solutions are known:

[0007] Patent 1:

[0008] Application number: 202010735557.5, application date: 2020.07.28, application publication date: 2020.10.16. The invention discloses a cooling and shaping device for manufacturing an insulating sheath of a communication cable, including an external auxiliary device, wherein the external auxiliary device is a hollow cylinder, and an internal cooling device is tightly sheathed inside the external auxiliary device, and water pumps are fixedly connected on both sides of the outer wall of the external auxiliary device. The present invention changes the traditional water trough cooling method and adopts a comprehensive spraying method to quickly cool the extruded soft insulating sheath. Because it is a spraying method, the speed of the sprayed cooling water is very fast, so that the cooling water can quickly take away the heat on the insulating sheath when it contacts the insulating sheath, and then separate from the insulating sheath. This not only improves the heat exchange efficiency between the insulating sheath and the sprayed cooling water, but also avoids the problem of the water temperature rising too fast at one end of the traditional water trough type, and the cooling efficiency of this cooling method is very stable, thereby ensuring that the insulating sheath extruded by the extruder can be well initially cooled at the starting end.

[0009] Patent 2:

[0010] Application number: 201922376377.8, application date: 2019.12.25, authorization announcement date: 2020.08.21, the utility model discloses a PVC drainage pipe blank cooling and molding mechanism, which can improve the cooling uniformity of the blank, and can reduce the adhesion of impurities on the surface of the blank, avoiding the impact on the quality of the blank; it includes a base, a support rod, a support ring, a rotating tube, a turntable, multiple groups of nozzles, a processing box, a fan, a filter, a motor, a reducer, a transmission shaft, a first bevel gear and a second bevel gear, a ball bearing is provided between the rotating tube and the inner wall of the support ring, the bottom of the left wall and the upper half of the right wall of the processing box are respectively provided with an input hole and an output hole, a mechanical seal is provided between the rotating tube and the inner wall of the output hole, the motor is installed at the input end of the reducer, and the two ends of the transmission shaft are respectively connected to the first bevel gear and the output end of the reducer, a fixing hole is provided on the second bevel gear, the second bevel gear is fixed to the rotating tube, and the first bevel gear is meshed with the second bevel gear.

[0011] Through the above search, it is found that the above technical solutions cannot affect the novelty of the present invention; and the mutual combination of the above patent documents cannot destroy the creativity of the present invention. Summary of the Invention

[0012] First, the technical problem to be solved

[0013] The purpose of the present invention is to provide a cooling and shaping device for manufacturing insulation sheaths of communication cables, so as to solve the problem that the existing cooling and shaping device for manufacturing insulation sheaths of communication cables in the above-mentioned background technology usually adopts a water tank or spraying method for cooling. When cooling by a water tank, the water in the water tank will heat up after absorbing heat, resulting in a decrease in its cooling rate. When cooling by spraying, the sprayed water is in point contact with the cable insulation protective sheath, resulting in uneven cooling at various positions and poor cooling effect. In addition, the cooling rate can usually only be adjusted by adjusting the water pressure, and the adjustment range of the cooling rate is small.

[0014] Second technical solution

[0015] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a communication cable insulation sheath manufacturing cooling and shaping device, comprising a spray mechanism, wherein the spray mechanism comprises an outer annular hollow cylinder, an inner annular hollow cylinder and a water injection element, the inner annular hollow cylinder is rotatably installed inside the outer annular hollow cylinder, and the outer annular hollow cylinder is communicated with the inner cavity of the inner annular hollow cylinder, the water injection element is fixedly installed on the outer wall of the outer annular hollow cylinder, and the water injection element pushes the inner annular hollow cylinder to rotate when injecting water into the outer annular hollow cylinder, and a plurality of nozzles are fixedly installed on the inner wall of the inner annular hollow cylinder.

[0016] During specific operation, water is injected into the outer annular hollow cylinder through the water injection element. The water injected by the water injection element drives the inner annular hollow cylinder to rotate. When the inner annular hollow cylinder rotates, it drives the nozzle on its inner wall to rotate synchronously, so that the water sprayed by the nozzle can fall evenly on the outer wall of the cable insulation protective sleeve, thereby cooling the cable insulation protective sleeve. By spraying water in a rotating water spraying manner, the water can fall evenly on the outer wall of the cable insulation protective sleeve. Compared with the spraying method, the cooling speed is more uniform, avoiding surface defects such as cracks and wrinkles on the cable insulation protective sleeve caused by uneven temperature at various positions. At the same time, the inner annular hollow cylinder is driven to rotate by the power of the water flow, and there is no need to use a driving device for driving, which saves costs.

[0017] As a further solution of the present invention, a plurality of push plates are fixedly installed in the inner cavity of the inner annular hollow cylinder, and the push plates are distributed in a circular array with the axis of the inner annular hollow cylinder as the array center. The angle between the water injection direction of the water injection element and the inner wall of the outer annular hollow cylinder where it is located is less than 90°, and the water injection element pushes the push plate to move when injecting water.

[0018] During specific operation, the angle between the water injection element and the inner wall of the outer annular hollow cylinder in which it is located is less than 90°, so that the water flow injected by the water injection element can impact the push plate, causing the push plate to rotate under force, thereby driving the inner annular hollow cylinder to rotate, thereby realizing that the water flow injected by the water injection element drives the inner annular hollow cylinder to rotate.

[0019] As a further solution of the present invention, the water supply mechanism includes a water injection box and a water injection pipe, the right end of the water injection pipe is fixedly connected to the outer wall of the water injection box, and the water injection box is communicated with the inner cavity of the water injection pipe, the bottom end of the water injection pipe is provided with a water outlet interface, and the top end of the water injection element is provided with a water injection interface, and the water injection interface is fixedly connected to the water outlet interface.

[0020] During specific operation, water is injected into the water injection pipe through the water injection tank, and the water injection pipe injects water into the water injection element through the water outlet interface and the water injection interface. At the same time, multiple water outlet interfaces are set at the bottom end of the water injection pipe to realize water injection into multiple spraying mechanisms through one water injection pipe.

[0021] As a further solution of the present invention, multiple support frames are fixedly installed on the top of the base, a conveying shaft is rotatably installed on the support frame, a conveying roller is fixedly installed on the conveying shaft, an annular groove is provided on the outer wall of the conveying roller, and adjacent conveying shafts are connected by pulleys and belt transmission.

[0022] During specific operation, the annular grooves opened on the surface of the conveying roller can better transport the insulation protective sleeves of the communication cables and prevent the surface of the insulation protective sleeves of the communication cables from being deformed due to pressure during transportation. The adjacent conveying shafts are connected by pulleys and belts, so that multiple conveying rollers can rotate synchronously, making the conveying process of the cable insulation protective sleeves smoother.

[0023] As a further solution of the present invention, a transmission mechanism is provided at the bottom end of the water filling tank, and the transmission mechanism includes an impeller, a driving shaft, an driving bevel gear, a driven bevel gear, a driven shaft, a pulley and a belt. The impeller is rotatably installed in the inner cavity of the water filling tank, and the bottom end of the impeller is fixedly connected to the driving shaft, and the bottom end of the driving shaft extends to the bottom of the water filling tank and is fixedly connected to the driving bevel gear. The driving bevel gear is meshed with the driven bevel gear, and one end of the driven bevel gear is fixedly connected to the driven shaft, and the driven shaft is connected to the conveying shaft through a pulley and a belt.

[0024] During specific use, when water in the water filling tank flows, the impeller rotates under the action of the water flow, and the rotating impeller drives the active shaft to rotate. The active shaft drives the driven shaft to rotate through the meshing active bevel gear and the driven bevel gear. The driven shaft drives the conveyor shaft to rotate through the belt and pulley, thereby driving the conveyor roller to rotate. The transmission mechanism drives multiple conveyor rollers to rotate through the power of the water flow, and does not require a drive device, thereby reducing costs.

[0025] As a further solution of the present invention, the spray mechanism is provided with multiple groups, and the bottom end of the water injection pipe is provided with multiple water outlet interfaces. The water injection pipe supplies water to the spray mechanism through the multiple water outlet interfaces. The left end of the water injection pipe is provided with a spray control mechanism, and the spray control mechanism includes a screw rod, a screw rod nut, a piston, a connecting shaft and a control handwheel. The screw rod is rotatably installed in the inner cavity of the water injection pipe, and a piston is threadedly installed on the screw rod. The piston is slidably installed on the inner end of the water injection pipe. The connecting shaft is rotatably installed on the left end of the water injection pipe through a bearing. The right end of the connecting shaft extends to the inner cavity of the water injection pipe and is fixedly connected to the left end of the screw rod. The left end of the connecting shaft is fixedly installed with a control handwheel.

[0026] During specific use, by setting up multiple groups of spray mechanisms, the cooling section length of the cooling production line can be adjusted, thereby adjusting the cooling speed to adapt to different batches of cable insulation protective sleeves. During adjustment, the control handwheel is rotated, and the control handwheel drives the screw to rotate through the connecting shaft. When the screw rotates, it drives the screw nut to slide in the water injection pipe, thereby driving the piston to slide. The closer the piston is to the right end, the more water outlet interfaces are blocked, and the fewer spray mechanisms are used to spray water, thereby achieving control of the cooling speed.

[0027] As a further solution of the present invention, a threaded groove is provided at the left end of the water injection pipe, and a locking ring is threadedly installed in the threaded groove. The locking ring cannot be separated from the threaded groove, and the connecting shaft passes through the locking ring. When the locking ring moves to the left, it is threadedly connected to the connecting shaft, and a locking handwheel is fixedly installed on the locking ring.

[0028] During specific use, after the position of the piston is adjusted, the connecting shaft can be locked in one direction through the locking ring. When locking, rotate the locking ring to move it to the left. After moving to the left, the locking ring is threadedly connected to the connecting shaft. When the locking ring moves to the left to the extreme position, the connecting shaft can only rotate in one direction. This rotation direction can only make the piston move toward the right end, so that the water pressure in the water injection pipe cannot push the piston to move to the left.

[0029] As a further solution of the present invention, the angle between the water spraying direction of the nozzle and the inner wall of the inner annular hollow cylinder where it is located is less than 90°, and a sliding sealing ring is provided at the connection between the outer annular hollow cylinder and the inner annular hollow cylinder.

[0030] During specific use, because the angle between the water spraying direction of the nozzle and the inner wall of the inner annular hollow cylinder in which it is located is less than 90°, the water sprayed from the nozzle can exert a reverse force on the nozzle when it falls on the insulating protective sleeve of the communication cable. This reverse force can push the inner annular hollow cylinder, thereby providing assistance for the rotation of the inner annular hollow cylinder. The sliding sealing ring can improve the sealing of the connection between the outer annular hollow cylinder and the inner annular hollow cylinder.

[0031] As a further solution of the present invention, the water supply mechanism also includes a booster pump, which is fixedly installed on the top of the water injection tank, and the water outlet end of the booster pump is fixedly connected to the top of the water injection tank, and the cross-section of the water injection element is set to an inverted triangle.

[0032] During specific operation, water is injected into the water inlet of the booster pump to provide water source for the entire device, and the water flow is pressurized by the booster pump so that the water pressure can meet the use requirements. By setting the cross section of the water injection element to an inverted triangle, the water injection element can have a pressurizing function, so that the water pressure sprayed by the water injection element is higher, thereby being able to push the push plate to rotate faster, making the rotation speed of the inner annular hollow cylinder faster and the water spray more uniform.

[0033] Working principle: During operation, water is injected into the water inlet of the booster pump, and the water flow is pressurized by the booster pump. The water flows through the water injection tank into the water injection pipe, and the water injection pipe injects water into the water injection element through the water outlet interface and the water injection interface. After the water is pressurized, the water is sprayed out by the water injection element and impacts the push plate, causing the push plate to rotate under force, thereby driving the inner annular hollow cylinder to rotate, so that the nozzle rotates and sprays water. The angle between the water spraying direction of the nozzle and the inner wall of the inner annular hollow cylinder where it is located is less than 90°, so that the water sprayed by the nozzle can give the nozzle a reverse force when it falls on the insulating protective cover of the communication cable. This reverse force can push the inner annular hollow cylinder, thereby providing assistance to the rotation of the inner annular hollow cylinder. When the water in the water injection tank flows, the impeller rotates under the action of the water flow, and the rotating impeller drives the active shaft to rotate, and the active shaft is meshed with active bevel gears. The wheel and the driven bevel gear drive the driven rotating shaft to rotate, and the driven rotating shaft drives the conveying shaft to rotate through the belt and pulley, thereby driving the conveying roller to rotate. The adjacent conveying shafts are connected by pulleys and belts, so that multiple conveying rollers can rotate synchronously. The transmission mechanism drives multiple conveying rollers to rotate through the power of water flow. No driving device is required, which reduces the cost. When the length of the cooling section needs to be adjusted, the control handwheel is rotated, and the control handwheel drives the screw to rotate through the connecting shaft. When the screw rotates, it drives the screw nut to slide in the water injection pipe, thereby driving the piston to slide. The closer the piston is to the right end, the more water outlet interfaces are blocked, and the fewer the number of spraying mechanisms for spraying water, thereby realizing the control of the cooling speed. After the position of the piston is adjusted, the connecting shaft can be one-way locked by the locking ring. After one-way locking, the piston cannot move to the left.

[0034] Three beneficial effects

[0035] 1. The present invention discloses a cooling and shaping device for manufacturing an insulating sheath of a communication cable. The water flow injected by the water injection element drives the inner annular hollow cylinder to rotate. When the inner annular hollow cylinder rotates, the nozzle on the inner wall thereof is driven to rotate synchronously, so that the water sprayed by the nozzle can fall evenly on the outer wall of the cable insulating protective sheath. The water can fall evenly on the outer wall of the cable insulating protective sheath by rotating the water spraying method. Compared with the spraying method, the cooling speed is more uniform, and surface defects such as cracks and wrinkles on the cable insulating protective sheath caused by uneven temperature at different positions are avoided. At the same time, the inner annular hollow cylinder is driven to rotate by the power of the water flow, and no driving device is required for driving, thereby reducing costs.

[0036] 2. The present invention provides a cooling and shaping device for manufacturing insulation sheaths of communication cables. By providing multiple spraying mechanisms, the length of the cooling section of the cooling production line can be adjusted, thereby adjusting the cooling speed to accommodate different batches of cable insulation sheaths. The cooling speed can be adjusted by the spraying control mechanism.

[0037] 3. The present invention relates to a cooling and shaping device for manufacturing insulating sheaths of communication cables. The present invention can transmit the water flow power in the water filling tank to multiple conveying rollers through a transmission mechanism. It does not need to be equipped with a driving device, which reduces costs and avoids the problem that the electrical components inside the driving device are prone to malfunction in a humid environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention will be further described below with reference to the accompanying drawings and examples.

[0039] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0040] Figure 2 It is a schematic diagram of the main structure of the present invention;

[0041] Figure 3 This invention Figure 2 A schematic diagram of the enlarged structure at point A;

[0042] Figure 4 It is a right side structural schematic diagram of the present invention;

[0043] Figure 5 It is a structural schematic diagram of the spray mechanism of the present invention;

[0044] Figure 6 It is a schematic diagram of the main cross-sectional structure of the spray mechanism of the present invention;

[0045] Figure 7 It is a schematic side cross-sectional structural diagram of the spray mechanism of the present invention;

[0046] Figure 8 This invention Figure 1 A schematic diagram of the enlarged structure at point B;

[0047] Figure 9 This invention Figure 1 Schematic diagram of the enlarged structure at C;

[0048] Figure 10 This invention Figure 6 The enlarged structural diagram at D is shown.

[0049] In the figure: 1. Spray mechanism; 2. Water supply mechanism; 3. Base; 4. Support frame; 5. Conveyor shaft; 6. Conveyor roller; 7. Transmission mechanism; 8. Spray control mechanism; 9. Locking ring; 11. Outer annular hollow cylinder; 12. Inner annular hollow cylinder; 13. Spray head; 14. Water injection element; 141. Water injection interface; 15. Push plate; 16. Sliding sealing ring; 21. Water injection tank; 22. Water injection pipe; 221. Water outlet interface; 23. Booster pump; 71. Impeller; 72. Active rotating shaft; 73. Active bevel gear; 74. Driven bevel gear; 75. Driven rotating shaft; 76. Pulley; 77. Belt; 81. Screw; 82. Screw nut; 83. Piston; 84. Connecting shaft; 85. Control handwheel; 86. Bearing; 91. Locking handwheel DETAILED DESCRIPTION

[0050] The embodiments of the present invention are described below with reference to the accompanying drawings. In the process, to ensure clarity and convenience of the description, we may exaggerate the width of the lines or the size of the components in the drawings.

[0051] In addition, the following terms are defined based on the functions of the present invention and may vary depending on the intentions or practices of the user or operator. Therefore, these terms are defined based on the entire content of this specification.

[0052] like Figures 1 to 7 As shown, a communication cable insulation sheath manufacturing cooling and shaping equipment includes a spray mechanism 1, the spray mechanism 1 includes an outer annular hollow cylinder 11, an inner annular hollow cylinder 12 and a water injection element 14, the inner annular hollow cylinder 12 is rotatably installed inside the outer annular hollow cylinder 11, and the outer annular hollow cylinder 11 is communicated with the inner cavity of the inner annular hollow cylinder 12, the water injection element 14 is fixedly installed on the outer wall of the outer annular hollow cylinder 11, and the water injection element 14 pushes the inner annular hollow cylinder 12 to rotate when injecting water into the outer annular hollow cylinder 11, and a plurality of nozzles 13 are fixedly installed on the inner wall of the inner annular hollow cylinder 12.

[0053] During specific operation, water is injected into the outer annular hollow cylinder 11 through the water injection element 14. The water injected by the water injection element 14 drives the inner annular hollow cylinder 12 to rotate. When the inner annular hollow cylinder 12 rotates, it drives the nozzle 13 on its inner wall to rotate synchronously, so that the water sprayed by the nozzle 13 can fall evenly on the outer wall of the cable insulation protective sleeve, thereby cooling the cable insulation protective sleeve. By spraying water in a rotating water spraying manner, the water can fall evenly on the outer wall of the cable insulation protective sleeve. Compared with the spraying method, the cooling speed is more uniform, avoiding surface defects such as cracks and wrinkles on the cable insulation protective sleeve caused by uneven temperature at different positions. During the study, we found that when using a motor to drive the inner annular hollow cylinder 12 to rotate, due to the large amount of water vapor when the equipment is running, the motor is easily damaged. Therefore, a structure that drives the inner annular hollow cylinder 12 to rotate by water flow is designed. The inner annular hollow cylinder 12 is driven to rotate by the power of the water flow, and there is no need to use a driving device to drive it, which saves costs.

[0054] As a further solution of the present invention, a plurality of push plates 15 are fixedly installed in the inner cavity of the inner annular hollow cylinder 12, and the plurality of push plates 15 are distributed in a circular array with the axis of the inner annular hollow cylinder 12 as the center of the array. The water injection direction of the water injection element 14 and the angle between the water injection direction and the inner wall of the outer annular hollow cylinder 11 where it is located are less than 90°. When the water injection element 14 injects water, it pushes the push plate 15 to move.

[0055] During specific operation, the angle between the water injection element 14 and the inner wall of the outer annular hollow cylinder 11 in which it is located is less than 90°, and the preferred angle is 60°. This angle allows the water flow injected by the water injection element 14 to impact the push plate 15, causing the push plate 15 to rotate under force, thereby driving the inner annular hollow cylinder 12 to rotate, thereby realizing that the water flow injected by the water injection element 14 drives the inner annular hollow cylinder 12 to rotate.

[0056] As a further solution of the present invention, the water supply mechanism 2 includes a water injection box 21 and a water injection pipe 22, the right end of the water injection pipe 22 is fixedly connected to the outer wall of the water injection box 21, and the water injection box 21 is communicated with the inner cavity of the water injection pipe 22, the bottom end of the water injection pipe 22 is provided with a water outlet interface 221, and the top end of the water injection element 14 is provided with a water injection interface 141, and the water injection interface 141 is fixedly connected to the water outlet interface 221.

[0057] During specific operation, water is injected into the water injection pipe 22 through the water injection box 21, and the water injection pipe 22 injects water into the water injection element 14 through the water outlet interface 221 and the water injection interface 141. At the same time, multiple water outlet interfaces 221 are set at the bottom end of the water injection pipe 22 to realize water injection into multiple spray mechanisms 1 through one water injection pipe 22. Setting multiple spray mechanisms 1 can better control the cooling speed.

[0058] As a further solution of the present invention, multiple support frames 4 are fixedly installed on the top of the base 3, and a conveying shaft 5 is rotatably installed on the support frame 4. A conveying roller 6 is fixedly installed on the conveying shaft 5, and an annular groove is provided on the outer wall of the conveying roller 6. The adjacent conveying shafts 5 are connected by a pulley 76 and a belt 77.

[0059] During the specific work, we found that since the outer wall of the newly produced communication cable insulation protective cover is relatively soft, the common straight-cylinder conveying roller 6 will squeeze the bottom of the cable insulation protective cover during transportation, causing its bottom to deform. The annular groove opened on the surface of the conveying roller 6 can better transport the communication cable insulation protective cover and prevent the surface of the communication cable insulation protective cover from being deformed due to pressure during transportation. The adjacent conveying shafts 5 are connected by pulleys 76 and belts 77, so that multiple conveying rollers 6 can rotate synchronously, making the conveying process of the cable insulation protective cover smoother.

[0060] As a further solution of the present invention, a transmission mechanism 7 is provided at the bottom end of the water filling box 21, and the transmission mechanism 7 includes an impeller 71, a driving shaft 72, an driving bevel gear 73, a driven bevel gear 74, a driven shaft 75, a pulley 76 and a belt 77. The impeller 71 is rotatably installed in the inner cavity of the water filling box 21, and the bottom end of the impeller 71 is fixedly connected to the driving shaft 72. The bottom end of the driving shaft 72 extends to the bottom of the water filling box 21 and is fixedly connected to the driving bevel gear 73. The driving bevel gear 73 is meshed with the driven bevel gear 74. One end of the driven bevel gear 74 is fixedly connected to the driven shaft 75, and the driven shaft 75 is transmission-connected to the conveying shaft 5 through a pulley 76 and a belt 77.

[0061] During specific use, when the water in the water filling tank 21 flows, the impeller 71 rotates under the action of the water flow, and the rotating impeller 71 drives the active shaft 72 to rotate. The active shaft 72 drives the driven shaft 75 to rotate through the meshing active bevel gear 73 and the driven bevel gear 74. The driven shaft 75 drives the conveying shaft 5 to rotate through the belt 77 and the pulley 76, thereby driving the conveying roller 6 to rotate. The transmission mechanism 7 drives multiple conveying rollers 6 to rotate through the power of the water flow. There is no need to be equipped with a driving device, which reduces the cost. When in use, the transmission mechanism 7 is placed in a well-sealed protective box to prevent rust.

[0062] As a further solution of the present invention, the spray mechanism 1 is provided with multiple groups, and the bottom end of the water injection pipe 22 is provided with multiple water outlet interfaces 221. The water injection pipe 22 supplies water to the spray mechanism 1 through the multiple water outlet interfaces 221. The left end of the water injection pipe 22 is provided with a spray control mechanism 8, and the spray control mechanism 8 includes a screw rod 81, a screw rod nut 82, a piston 83, a connecting shaft 84 and a control handwheel 85. The screw rod 81 is rotatably installed in the inner cavity of the water injection pipe 22, and the piston 83 is threadedly installed on the screw rod 81. The piston 83 is slidably installed on the inner end of the water injection pipe 22. The connecting shaft 84 is rotatably installed on the left end of the water injection pipe 22 through a bearing 86. The right end of the connecting shaft 84 extends to the inner cavity of the water injection pipe 22 and is fixedly connected to the left end of the screw rod 81. The left end of the connecting shaft 84 is fixedly installed with a control handwheel 85.

[0063] During specific use, we found that due to the different raw material compositions of different batches of cable insulation protective sleeves, the cooling time required is different. If the temperature after cooling is low, the cable insulation protective sleeve will be too hard after forming, making it difficult to bend when winding. If the temperature after cooling is high, the forming is incomplete, and pits are easily generated after the surface is compressed during winding. By setting up multiple groups of spray mechanisms 1, the cooling section length of the cooling production line can be adjusted, thereby adjusting the cooling speed to adapt to different batches of cable insulation protective sleeves. During adjustment, the control handwheel 85 is rotated, and the control handwheel 85 drives the screw rod 81 to rotate through the connecting shaft 84. When the screw rod 81 rotates, it drives the screw nut 82 to slide in the water injection pipe 22, thereby driving the piston 83 to slide. The closer the piston 83 is to the right end, the more water outlet interfaces 221 are blocked, and the fewer the number of spray mechanisms 1 that spray water, thereby achieving control of the cooling speed.

[0064] As a further solution of the present invention, a threaded groove is provided at the left end of the water injection pipe 22, and a locking ring 9 is threadedly installed in the threaded groove. The locking ring 9 cannot be separated from the threaded groove. The connecting shaft 84 passes through the locking ring 9. When the locking ring 9 moves to the left, it is threadedly connected to the connecting shaft 84. A locking handwheel 91 is fixedly installed on the locking ring 9. Turning the locking handwheel 91 can drive the locking ring 9 to rotate.

[0065] During actual use, we found that the piston 83 would be deflected to the left by the water pressure, so a locking ring 9 was designed to lock the connecting shaft 84. After the position of the piston 83 was adjusted, the connecting shaft 84 could be locked by the locking ring 9 so that it could not rotate. When locking, the locking ring 9 was rotated to move the locking ring 9 to the left. After moving to the left, the locking ring 9 was threadedly connected to the connecting shaft 84. When the locking ring 9 moved to the left to the extreme position, the connecting shaft 84 could only rotate in one direction. This rotation direction can only move the piston 83 toward the right end, so that the water pressure in the water injection pipe 22 cannot push the piston 83 to move to the left.

[0066] As a further solution of the present invention, the angle between the water spraying direction of the nozzle 13 and the inner wall of the inner annular hollow cylinder 12 is less than 90°, and a sliding sealing ring 16 is provided at the connection between the outer annular hollow cylinder 11 and the inner annular hollow cylinder 12.

[0067] During specific use, because the angle between the water spraying direction of the nozzle 13 and the inner wall of the inner annular hollow cylinder 12 is less than 90°, the water sprayed by the nozzle 13 can give the nozzle 13 a reverse force when it falls on the insulating protective sleeve of the communication cable. This reverse force can push the inner annular hollow cylinder 12, thereby providing assistance to the rotation of the inner annular hollow cylinder 12. The sliding sealing ring 16 is a sealing ring that can still maintain sealing when rotating. The sliding sealing ring 16 can improve the sealing of the connection between the outer annular hollow cylinder 11 and the inner annular hollow cylinder 12.

[0068] As a further solution of the present invention, the water supply mechanism 2 also includes a booster pump 23, which is fixedly installed on the top of the water injection tank 21, and the water outlet end of the booster pump 23 is fixedly connected to the top of the water injection tank 21, and the cross-section of the water injection element 14 is set to an inverted triangle.

[0069] During specific operation, water is injected into the water inlet of the booster pump 23 to provide a water source for the entire device. When the water pressure of the water source is low, the water flow is pressurized by the booster pump 23 so that the water pressure can meet the use requirements. By setting the cross-section of the water injection element 14 to an inverted triangle, the water injection element 14 can have a pressurizing function, so that the water pressure sprayed by the water injection element 14 is higher, thereby being able to push the push plate 15 to rotate faster, so that the rotation speed of the inner annular hollow cylinder 12 is faster and the water spray is more uniform.

[0070] Working principle: When working, water is injected into the water inlet of the booster pump 23, and the water flow is pressurized by the booster pump 23 so that the water pressure can meet the use requirements. The water flows through the water injection tank 21 and enters the water injection pipe 22. The water injection pipe 22 injects water into the water injection element 14 through the water outlet interface 221 and the water injection interface 141. At the same time, multiple water outlet interfaces 221 are set at the bottom end of the water injection pipe 22 to realize water injection into multiple spray mechanisms 1 through one water injection pipe 22. After the water is pressurized, the water flow is sprayed and impacts the push plate 15, so that the push plate 15 is forced to rotate, thereby driving the inner annular hollow cylinder 12 to rotate. , so that the nozzle 13 rotates and sprays water, and the angle between the spray direction of the nozzle 13 and the inner wall of the inner annular hollow cylinder 12 where it is located is less than 90 degrees, so that when the water sprayed by the nozzle 13 falls on the insulation protective sleeve of the communication cable, it can give the nozzle 13 a reverse force, and this reverse force can push the inner annular hollow cylinder 12, thereby providing assistance to the rotation of the inner annular hollow cylinder 12. When the water in the water filling tank 21 flows, the impeller 71 rotates under the action of the water flow, and the rotating impeller 71 drives the active shaft 72 to rotate, and the active shaft 72 drives the driven shaft 7 through the meshing active bevel gear 73 and the driven bevel gear 74. 5 rotates, and the driven rotating shaft 75 drives the conveying shaft 5 to rotate through the belt 77 and the pulley 76, thereby driving the conveying roller 6 to rotate. The adjacent conveying shafts 5 are connected by the pulley 76 and the belt 77, so that multiple conveying rollers 6 can rotate synchronously. The transmission mechanism 7 drives multiple conveying rollers 6 to rotate by the power of the water flow, and no driving device is required, which reduces the cost. When the length of the cooling section needs to be adjusted, the adjusting handwheel 85 is rotated. The adjusting handwheel 85 drives the screw 81 to rotate through the connecting shaft 84. When the screw 81 rotates, it drives the screw nut 82 to slide in the water injection pipe 22, thereby driving the piston 83 When sliding, the closer the piston 83 is to the right end, the more water outlet interfaces 221 are blocked, and the fewer the spraying mechanisms 1 that spray water, thereby realizing the regulation of the cooling speed. After the position of the piston 83 is adjusted, the connecting shaft 84 can be locked in one direction through the locking ring 9. When locking, the locking ring 9 is rotated to move the locking ring 9 to the left. After the locking ring 9 moves to the left, it is threadedly connected to the connecting shaft 84. When the locking ring 9 moves to the left to the extreme position, the connecting shaft 84 can only rotate in one direction. This rotation direction can only move the piston 83 toward the right end, so that the water pressure in the water injection pipe 22 cannot push the piston 83 to move to the left.

[0071] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A cooling and shaping device for manufacturing an insulating sheath of a communication cable, comprising a spraying mechanism (1), characterized in that: The spray mechanism (1) comprises an outer annular hollow cylinder (11), an inner annular hollow cylinder (12) and a water injection element (14); the inner annular hollow cylinder (12) is rotatably mounted inside the outer annular hollow cylinder (11), and the outer annular hollow cylinder (11) is communicated with the inner cavity of the inner annular hollow cylinder (12); the water injection element (14) is fixedly mounted on the outer wall of the outer annular hollow cylinder (11); when the water injection element (14) injects water into the outer annular hollow cylinder (11), it pushes the inner annular hollow cylinder (12) to rotate; and a plurality of spray heads (13) are fixedly mounted on the inner wall of the inner annular hollow cylinder (12).

2. The cooling and shaping equipment for manufacturing insulation sheaths of communication cables according to claim 1, characterized in that: A plurality of push plates (15) are fixedly installed in the inner cavity of the inner annular hollow cylinder (12), and the plurality of push plates (15) are distributed in an annular array with the axis of the inner annular hollow cylinder (12) as the array center. The angle between the water injection direction of the water injection element (14) and the inner wall of the outer annular hollow cylinder (11) where it is located is less than 90 degrees. When the water injection element (14) injects water, it pushes the push plates (15) to move.

3. The cooling and shaping equipment for manufacturing insulation sheaths of communication cables according to claim 1, further comprising a water supply mechanism (2), characterized in that: The water supply mechanism (2) comprises a water injection box (21) and a water injection pipe (22); the right end of the water injection pipe (22) is fixedly connected to the outer wall of the water injection box (21), and the water injection box (21) is communicated with the inner cavity of the water injection pipe (22); the bottom end of the water injection pipe (22) is provided with a water outlet interface (221); the top end of the water injection element (14) is provided with a water injection interface (141); the water injection interface (141) is fixedly connected to the water outlet interface (221).

4. The device for manufacturing and cooling the insulation sheath of a communication cable according to claim 3, further comprising a base (3), characterized in that: A plurality of support frames (4) are fixedly mounted on the top of the base (3), a conveying shaft (5) is rotatably mounted on the support frame (4), a conveying roller (6) is fixedly mounted on the conveying shaft (5), an annular groove is formed on the outer wall of the conveying roller (6), and adjacent conveying shafts (5) are connected by a pulley (76) and a belt (77).

5. The cooling and shaping equipment for manufacturing insulation sheaths of communication cables according to claim 4, characterized in that: A transmission mechanism (7) is provided at the bottom end of the water injection box (21), and the transmission mechanism (7) includes an impeller (71), a driving shaft (72), a driving bevel gear (73), a driven bevel gear (74), a driven shaft (75), a pulley (76) and a belt (77). The impeller (71) is rotatably mounted in the inner cavity of the water injection box (21). The bottom end of the impeller (71) is fixedly connected to the driving shaft (72). The bottom end of the driving shaft (72) extends to the bottom of the water injection box (21) and is fixedly connected to the driving bevel gear (73). The driving bevel gear (73) is meshed with the driven bevel gear (74). One end of the driven bevel gear (74) is fixedly connected to the driven shaft (75). The driven shaft (75) is transmission-connected to the conveying shaft (5) via the pulley (76) and the belt (77).

6. The cooling and shaping equipment for manufacturing insulation sheaths of communication cables according to claim 3, characterized in that: The spray mechanism (1) is provided with multiple groups, the bottom end of the water injection pipe (22) is provided with multiple water outlet interfaces (221), the water injection pipe (22) supplies water to the spray mechanism (1) through the multiple water outlet interfaces (221), the left end of the water injection pipe (22) is provided with a spray control mechanism (8), the spray control mechanism (8) comprises a screw rod (81), a screw rod nut (82), a piston (83), a connecting shaft (84) and a control hand wheel (85), the screw rod (81) The screw rod (81) is rotatably mounted in the inner cavity of the water injection pipe (22), and a piston (83) is threadedly mounted on the screw rod (81). The piston (83) is slidably mounted on the inner end of the water injection pipe (22). The connecting shaft (84) is rotatably mounted on the left end of the water injection pipe (22) through a bearing (86). The right end of the connecting shaft (84) extends to the inner cavity of the water injection pipe (22) and is fixedly connected to the left end of the screw rod (81). The left end of the connecting shaft (84) is fixedly mounted with a regulating hand wheel (85).

7. The cooling and shaping equipment for manufacturing insulation sheaths of communication cables according to claim 6, characterized in that: A threaded groove is formed at the left end of the water injection pipe (22), and a locking ring (9) is threadedly installed in the threaded groove. The locking ring (9) cannot be separated from the threaded groove. The connecting shaft (84) passes through the locking ring (9). When the locking ring (9) moves to the left, it is threadedly connected to the connecting shaft (84). A locking handwheel (91) is fixedly installed on the locking ring (9).

8. The cooling and shaping equipment for manufacturing insulation sheaths of communication cables according to claim 1, characterized in that: The angle between the water spraying direction of the nozzle (13) and the inner wall of the inner annular hollow cylinder (12) where the nozzle (13) is located is less than 90°, and a sliding sealing ring (16) is provided at the connection between the outer annular hollow cylinder (11) and the inner annular hollow cylinder (12).

9. The cooling and shaping equipment for manufacturing insulation sheaths of communication cables according to claim 3, characterized in that: The water supply mechanism (2) further comprises a booster pump (23), the booster pump (23) being fixedly mounted on the top of the water injection tank (21), and the water outlet end of the booster pump (23) being fixedly connected to the top of the water injection tank (21), and the cross section of the water injection element (14) being arranged in the shape of an inverted triangle.

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