Conductor preheating device for extruding wires and cables

Abstract

The invention relates to the technical field of conductor preheating devices, and discloses a conductor preheating device for wire and cable extrusion, the conductor preheating device comprises a fixing frame and a conductor, the top of the fixing frame is fixedly connected with a baffle and a lower heating shell, and the top of the lower heating shell is rotatably connected with an upper heating shell; heating wires are fixedly connected to the middle of the lower heating shell and the middle of the upper heating shell, a hasp is fixedly connected to the top of the upper heating shell, an air blowing assembly is arranged at the top of the upper heating shell and used for blowing and heating a conductor, and a replacement assembly is arranged on one side of the fixing frame and used for replacing the conductor. Through mutual cooperation of main structures such as a double-head motor, a fan, a small gear, a large gear, a sliding rod, a sliding block and a brush, external air can be conveniently drawn to be blown into an upper heating shell and a lower heating shell, so that the blown-in air can be heated under the action of a heating wire, a conductor is preheated more uniformly, and the heating efficiency of the conductor is improved. And the working efficiency is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of conductor preheating devices, in particular to a conductor preheating device for extruding wires and cables. Background Art

[0002] The wire and cable extrusion process is the core link in the manufacturing process of wires and cables. Its main purpose is to evenly extrude the insulating material (such as polyvinyl chloride, polyethylene, etc.) to cover the outer surface of the conductor (such as copper wire or aluminum wire), thereby forming a finished cable with electrical and mechanical protection performance. The process usually includes five steps: first, the preparation of the conductor, making copper or aluminum into a conductor wire that meets the specifications; second, preheating the conductor to remove moisture from the surface of the conductor and improve the adhesion between the conductor and the insulating material; then, the molten insulating material is evenly covered on the conductor through an extruder; then, the extruded product is solidified and shaped through a cooling tank; finally, the cable covered with the insulating layer is rolled up for use. In the entire extrusion process, the conductor preheating process is particularly critical, which affects the quality and adhesion of the insulating layer, as well as the mechanical strength and electrical properties of the final product.

[0003] As a key device in the extrusion process, the conductor preheating device is mainly used to heat the conductor to ensure the extrusion effect of the subsequent insulating material. The preheating device removes moisture from the surface of the conductor by heating it to avoid bubbles in the insulation layer, while improving the adhesion between the insulating material and the conductor, significantly improving the mechanical strength of the cable.

[0004] In the prior art, a baking type preheating device is usually used. Specifically, a baking type preheating device uses a heating tube at the top and bottom. The conductor is baked and heated by two heating tubes. Although this structure can achieve the basic heating function, due to the limited distribution of the heating source, it is easy to cause uneven temperature of the conductor during the heating process, resulting in insufficient or overheating of the local conductor, which directly affects the uniform coverage and adhesion of the insulating material. In addition, the heating efficiency of a single heating tube is low, and it is difficult to meet the needs of modern production lines when high-temperature preheating or high-speed production is required. This leads to reduced production quality of the cable and affects the mechanical and electrical properties of the final product. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a conductor preheating device for wire and cable extrusion, which solves the problems of uneven heating and low heating efficiency in the prior art baking-type preheating devices.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a conductor preheating device for wire and cable extrusion, comprising a fixing frame and a conductor, the top of the fixing frame is fixedly connected with a baffle and a lower heating shell, the top of the lower heating shell is rotatably connected with an upper heating shell, the middle parts of the lower heating shell and the upper heating shell are fixedly connected with heating wires, the top of the upper heating shell is fixedly connected with a buckle, the top of the upper heating shell is provided with a blowing assembly, which is used to blow and heat the conductor, and one side of the fixing frame is provided with a replacement assembly, which is used to replace the conductor; The blowing assembly includes a fixed shell, which is fixedly connected to the top of the upper heating shell, a fixed block and a filter plate are fixedly connected to the middle of the fixed shell, a double-headed motor is fixedly connected to the middle of the fixed block, one of the output ends of the double-headed motor is fixedly connected to a fan, and the other output end of the double-headed motor is fixedly connected to a small gear, a rotating rod is rotatably connected to the top of the fixed block, a large gear and a limiting ring are fixedly connected to the outer periphery of the rotating rod, the large gear and the small gear are meshed with each other, a disc is fixedly connected to the top of the rotating rod, a sliding rod is fixedly connected to the top of the disc, a sliding block is slidably connected to the outer periphery of the sliding rod, and a cleaning assembly is provided on one side of the sliding block, which is used to clean the surface of the filter plate.

[0007] Furthermore, the upper heating shell can conveniently support the fixed shell, and the fixed shell can conveniently support and fix the fixed block and the filter plate, the filter plate can conveniently filter dust in the air, and the fixed block can conveniently support and fix the double-headed motor, so that the double-headed motor can work better. When the double-headed motor is working, it can conveniently drive the fan and the small gear to rotate at the same time. When the fan rotates, it will draw external air to blow to the interior of the upper heating shell and the lower heating shell, so as to facilitate more uniform and effective heating of the conductor.

[0008] Preferably, the cleaning assembly comprises a connecting plate, one end of the connecting plate is fixedly connected to one side of the slider, one end of the connecting plate away from the slider is fixedly connected to a cleaning plate, and a plurality of brushes are fixedly connected to the bottom of the cleaning plate.

[0009] Furthermore, when the slider translates, the connecting plate will be driven to move at the same time, and when the connecting plate moves, the cleaning plate will be driven to move. When the cleaning plate moves, it can easily drive multiple brushes to move, thereby facilitating the cleaning of the surface of the filter plate.

[0010] Preferably, the replacement component includes a support plate, the support plate is fixedly connected to one side of the fixing frame, the top of the support plate is fixedly connected to a fixing plate, a movable rod is arranged on the top of the fixing plate, the conductor sleeve is arranged on the outer circumference of the movable rod, and the fixing plate is provided with two, one of which is fixedly connected to a tension spring on one side of the fixing plate, the tension spring is fixedly connected to a stop block away from one end of the fixing plate, and the other side of the fixing plate is fixedly connected to the support frame, the middle of the support frame is slidably connected to a limiting block, one side of the limiting block is fixedly connected to motor 1, the output end of motor 1 is fixedly connected to a connecting block, a slot is provided on a side of the connecting block away from motor 1, a blocking block is fixedly connected to the outer wall of the movable rod, the blocking block is clamped with the blocking slot, and a connecting component is provided on the side of the limiting block away from motor 1, which is used to drive the limiting block to move.

[0011] Furthermore, the support plate can conveniently support and fix the fixed plate, and the fixed plate can conveniently support the movable rod, thereby facilitating the rotation of the movable rod, the tension spring can pull the stop block to move, and the stop block can conveniently squeeze the movable rod, thereby conveniently limiting the movable rod, and when the motor is working, it can conveniently drive the connecting block to rotate, and when the connecting block rotates, it will drive the movable rod to rotate at the same time through the card block and the card slot.

[0012] Preferably, the connecting assembly includes a pull rod, which is fixedly connected to one side of the limit block, and the pull rod is slidably connected to the middle of the support frame. A spring is fixedly connected to the middle of the support frame, and one end of the spring away from the support frame is fixedly connected to one side of the limit block.

[0013] Furthermore, the pull rod can conveniently pull the limit block to move, and when the limit block moves, the spring will be squeezed, and under the action of the spring, the limit block can be conveniently ejected and reset.

[0014] Preferably, the fixed plate is fixedly connected to a dustproof shell on a side away from the support frame, and motor 2 is fixedly connected to one side of the dustproof shell. A connecting rod is fixedly connected to the output end of motor 2, and a circular gear is fixedly connected to the outer periphery of the connecting rod. Rack plate 2 and rack plate 1 are slidably connected inside the dustproof shell, and rack plate 2 and rack plate 1 are both meshed with the circular gear. An adjustment component is provided on the side of rack plate 1 away from rack plate 2, which is used to adjust the tension of the conductor.

[0015] Furthermore, the dustproof shell can conveniently support and fix the motor 2, so that the motor 2 can work better. When the motor 2 is working, it can conveniently drive the connecting rod to rotate, and when the connecting rod rotates, it can conveniently drive the circular gear to rotate at the same time.

[0016] Preferably, the adjustment assembly includes a moving block 1, the moving block 1 is fixedly connected to one side of the rack plate 1, the side of the rack plate 2 away from the rack plate 1 is fixedly connected to the moving block 2, and one side of the moving block 1 and the moving block 2 are both fixedly connected to an adjustment rod.

[0017] Furthermore, when the moving block 1 and the moving block 2 move at the same time, the two adjusting rods can be easily driven to move, thereby facilitating the adjustment of the tension of the conductor.

[0018] Preferably, a limiting groove is provided on a side of the dustproof shell away from the second motor, the first moving block is slidably connected to the middle of the limiting groove, and the limiting groove is used to limit the first moving block and the second moving block.

[0019] Furthermore, the limiting groove can conveniently limit the moving block 1 and the moving block 2, thereby preventing the moving block 1 and the moving block 2 from being offset when moving.

[0020] Preferably, a placement box and a control box are fixedly connected to the middle of the fixing frame, the placement box is used to place tools used for maintenance, and the control box is used for the operator to control the overall operation of the device.

[0021] Furthermore, the placement box and the control box can make it more convenient for operators to work.

[0022] Preferably, a handle is fixedly connected to the top of the upper heating shell, a control panel is fixedly connected to one side of the baffle, and a transparent panel is fixedly connected to the middle of the baffle.

[0023] Furthermore, the handle can facilitate the operator to move the heating shell, and the transparent panel can facilitate the operator to observe the heating conditions inside the upper heating shell and the lower heating shell.

[0024] The present invention provides a conductor preheating device for wire and cable extrusion, which has the following beneficial effects: 1. The present invention drives the fan and the small gear to rotate simultaneously through a double-headed motor, and when the fan rotates, it is convenient to draw external air to blow to the interior of the upper heating shell and the lower heating shell, so that the blown air can be heated by the action of the heating wire, so that the conductor is preheated more evenly, thereby improving the working efficiency. When the small gear rotates, it drives the large gear to mesh and rotate at the same time, and when the large gear rotates, it drives the disc to rotate through the rotating rod, and when the disc rotates, it drives the slide bar to perform circular motion, and when the slide bar performs circular motion, it drives the slider to translate, and when the slider translates, it can conveniently drive the cleaning plate to translate in the same flower through the connecting plate, and when the cleaning plate moves, it can conveniently drive multiple brushes to clean the surface of the filter plate, and at the same time, under the action of the filter plate, the drawn air can be conveniently filtered, thereby preventing dust in the air from affecting the conductor.

[0025] 2. The present invention can conveniently drive the limit block to move by pulling the pull rod, and the limit block will squeeze the spring when it moves. When the limit block squeezes the spring, it will drive the motor to move. When the motor moves, it will drive the connecting block to move at the same time, so that the slot and the block are disengaged, and then the movable rod can be easily replaced. At the same time, the movable rod can facilitate the winding or releasing of the conductor.

[0026] 3. The present invention drives the connecting rod to rotate through the second motor, and when the connecting rod rotates, it can conveniently drive the circular gear to rotate at the same time. When the circular gear rotates, it will drive the rack plate two and the rack plate one to mesh and move. When the rack plate two and the rack plate one move, it can conveniently drive the moving block one and the moving block two to move at the same time. When the moving block one and the moving block two move, they will drive the two adjusting rods to adjust and move, so that the tension of the conductor can be adjusted conveniently, and then the adjusting rod can be heated more effectively, while improving work efficiency and reducing the labor intensity of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A perspective view of the present invention; Figure 2 is a schematic diagram of a handle of the present invention; Figure 3 is a schematic diagram of a heating wire of the present invention; Figure 4 It is a schematic diagram of the double-headed motor of the present invention; Figure 5 is a schematic diagram of a transparent panel of the present invention; Figure 6 is a schematic diagram of a pull rod of the present invention; Figure 7 It is a schematic diagram of the card block of the present invention; Figure 8is a schematic diagram of a dustproof shell of the present invention; Fig. 9 Schematic diagram of the circular gear of the present invention.

[0028] Among them, 1. fixing frame; 2. control box; 3. placement box; 4. baffle; 5. transparent panel; 6. buckle; 7. fixing shell; 8. upper heating shell; 9. lower heating shell; 10. support plate; 11. handle; 12. control panel; 13. fixing plate; 14. conductor; 15. heating wire; 16. fixing block; 17. double-headed motor; 18. fan; 19. small gear; 20. rotating rod; 21. limiting ring; 22. large gear; 23. disc; 24. sliding rod; 25. slider; 26. connecting rod Connecting plate; 27, cleaning plate; 28, brush; 29, dust cover; 30, support frame; 31, pull rod; 32, spring; 33, limit block; 34, motor one; 35, connecting block; 36, slot; 37, block; 38, movable rod; 39, tension spring; 40, stopper; 41, motor two; 42, moving block one; 43, limit slot; 44, adjusting rod; 45, connecting rod; 46, circular gear; 47, rack plate one; 48, rack plate two; 49, moving block two; 50, filter plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the specification 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.

[0030] Please see attached Figure 1 -Attached Figure 3 The embodiment of the present invention provides a conductor preheating device for wire and cable extrusion, including a fixing frame 1 and a conductor 14, a baffle 4 and a lower heating shell 9 are fixedly connected to the top of the fixing frame 1, an upper heating shell 8 is rotatably connected to the top of the lower heating shell 9, a heating wire 15 is fixedly connected to the middle of the lower heating shell 9 and the upper heating shell 8, a buckle 6 is fixedly connected to the top of the upper heating shell 8, a blowing assembly is provided on the top of the upper heating shell 8, which is used to blow and heat the conductor 14, and a replacement assembly is provided on one side of the fixing frame 1, which is used to replace the conductor 14.

[0031] The fixing frame 1 can conveniently support and fix the baffle 4, and the two heating wires 15 can more conveniently heat the conductor 14, so that the conductor 14 is heated more evenly, and the buckle 6 can conveniently connect and limit the upper heating shell 8 and the baffle 4.

[0032] Please see attached Figure 2 -Attached Figure 4The blowing assembly includes a fixed shell 7, which is fixedly connected to the top of the upper heating shell 8. A fixed block 16 and a filter plate 50 are fixedly connected to the middle of the fixed shell 7. A double-headed motor 17 is fixedly connected to the middle of the fixed block 16. One output end of the double-headed motor 17 is fixedly connected to a fan 18, and the other output end of the double-headed motor 17 is fixedly connected to a pinion 19. A rotating rod 20 is rotatably connected to the top of the fixed block 16. A large gear 22 and a limiting ring 21 are fixedly connected to the outer periphery of the rotating rod 20. The large gear 22 and the pinion 19 are meshed with each other. A disc 23 is fixedly connected to the top of the rotating rod 20. A sliding rod 24 is fixedly connected to the top of the disc 23. A sliding block 25 is slidably connected to the outer periphery of the sliding rod 24. A cleaning assembly is provided on one side of the sliding block 25, which is used to clean the surface of the filter plate 50.

[0033] The fixed shell 7 can conveniently support and fix the fixed block 16 and the filter plate 50, and the filter plate 50 can conveniently filter the dust in the air. The fixed block 16 can conveniently support and fix the double-headed motor 17, so that the double-headed motor 17 can work better. When the double-headed motor 17 is working, it can conveniently drive the fan 18 and the small gear 19 to rotate at the same time. When the fan 18 rotates, it will draw the external air to blow to the interior of the upper heating shell 8 and the lower heating shell 9, so that the blown air can be heated by the action of the heating wire 15, so that the conductor 14 is preheated more evenly, thereby improving the work efficiency; when the small gear 19 rotates, it will drive the large gear 22 to mesh and rotate, and when the large gear 22 rotates, it will drive the disc 23 to rotate at the same time through the rotating rod 20, and when the disc 23 rotates, it can conveniently drive the slide bar 24 to perform a circular motion, and when the slide bar 24 performs a circular motion, it will drive the slider 25 to translate.

[0034] Please see attached Figure 4 The cleaning assembly includes a connecting plate 26, one end of the connecting plate 26 is fixedly connected to one side of the slider 25, and the end of the connecting plate 26 away from the slider 25 is fixedly connected to a cleaning plate 27, and a plurality of brushes 28 are fixedly connected to the bottom of the cleaning plate 27.

[0035] When the slider 25 translates, it will drive the connecting plate 26 to move, and when the connecting plate 26 moves, it can easily drive the cleaning plate 27 to move at the same time, and when the cleaning plate 27 moves, it will drive multiple brushes 28 to move at the same time, so that the top of the filter plate 50 can be easily cleaned, preventing the filter plate 50 from being blocked when working for a long time.

[0036] Please see attached Figure 5 -Attached Figure 7The replacement component includes a support plate 10, which is fixedly connected to one side of the fixed frame 1, a fixed plate 13 is fixedly connected to the top of the support plate 10, a movable rod 38 is arranged on the top of the fixed plate 13, and the conductor 14 is sleeved on the outer periphery of the movable rod 38. Two fixed plates 13 are provided, one side of which is fixedly connected to a tension spring 39, and the tension spring 39 is fixedly connected to a stopper 40 at one end away from the fixed plate 13, and one side of the other fixed plate 13 is fixedly connected to a support frame 30, and a limiting block 33 is slidably connected to the middle part of the support frame 30, and a motor 1 34 is fixedly connected to one side of the limiting block 33, and a connecting block 35 is fixedly connected to the output end of the motor 1 34, and a slot 36 is provided on the side of the connecting block 35 away from the motor 1 34, and a block 37 is fixedly connected to the outer wall of the movable rod 38, and the block 37 is snap-fitted with the slot 36, and a connecting component is provided on the side of the limiting block 33 away from the motor 1 34, which is used to drive the limiting block 33 to move.

[0037] The support plate 10 can conveniently support the fixed plate 13, and the fixed plate 13 can conveniently support and limit the movable rod 38, so that the movable rod 38 can be conveniently rotated, and the conductor 14 can be conveniently transported when the movable rod 38 rotates; the tension spring 39 can conveniently pull the stopper 40 to squeeze and limit the movable rod 38, so as to prevent the movable rod 38 from deflecting when it rotates, and when the limit block 33 moves, it can conveniently drive the motor 134 to move, and when the motor 134 moves, it will drive the connecting block 35 to move at the same time, and when the connecting block 35 moves, it will drive the slot 36 to disengage from the block 37, and when the slot 36 disengages from the block 37, the movable rod 38 can be conveniently replaced, and at the same time, the movable rod 38 can be conveniently driven to rotate under the action of the block 37 and the slot 36, and when the motor 134 is working, it can conveniently drive the connecting block 35 to rotate.

[0038] Please see attached Figure 7 The connecting assembly includes a pull rod 31, which is fixedly connected to one side of the limit block 33. The pull rod 31 is slidably connected to the middle of the support frame 30. A spring 32 is fixedly connected to the middle of the support frame 30. The end of the spring 32 away from the support frame 30 is fixedly connected to one side of the limit block 33.

[0039] The pull rod 31 can facilitate the operator to pull the limit block 33 to move. When the limit block 33 moves, the spring 32 is squeezed, and the spring 32 can conveniently push the limit block 33 out and reset.

[0040] Please see attached Figure 6 , Attachment Figure 8 and attached Fig. 9A dust cover 29 is fixedly connected to the side of the fixed plate 13 away from the support frame 30, and a motor 2 41 is fixedly connected to one side of the dust cover 29. A connecting rod 45 is fixedly connected to the output end of the motor 2 41, and a circular gear 46 is fixedly connected to the outer periphery of the connecting rod 45. A rack plate 2 48 and a rack plate 1 47 are slidably connected inside the dust cover 29. The rack plate 28 and the rack plate 1 47 are meshed with the circular gear 46. An adjustment component is provided on the side of the rack plate 1 47 away from the rack plate 2 48, which is used to adjust the tension of the conductor 14.

[0041] The dustproof shell 29 can conveniently support and limit the motor 2 41, so that the motor 2 41 can work more stably. When the motor 2 41 is working, it can conveniently drive the connecting rod 45 to rotate. When the connecting rod 45 rotates, it will drive the circular gear 46 to rotate at the same time. When the circular gear 46 rotates, it can conveniently drive the rack plate 1 47 and the rack plate 2 48 to translate.

[0042] Please see attached Fig. 9 The adjustment component includes a moving block 42, which is fixedly connected to one side of a rack plate 47, and a moving block 49 is fixedly connected to the side of a rack plate 48 away from the rack plate 47, and one side of the moving block 42 and the moving block 49 are both fixedly connected to an adjustment rod 44.

[0043] When rack plate 1 47 and rack plate 2 48 move simultaneously, moving block 1 42 and moving block 2 49 will be driven to move simultaneously. When moving block 2 49 and moving block 1 42 move, two adjusting rods 44 can be driven to move conveniently. When two adjusting rods 44 move, the tension of conductor 14 can be conveniently adjusted.

[0044] Please see attached Figure 8 and attached Fig. 9 A limiting groove 43 is provided on one side of the dustproof shell 29 away from the motor 2 41 , and the moving block 1 42 is slidably connected to the middle of the limiting groove 43 , and the limiting groove 43 is used to limit the moving block 1 42 and the moving block 2 49 .

[0045] The limiting groove 43 can conveniently limit the moving block 1 42 and the moving block 2 49, thereby preventing the moving block 1 42 and the moving block 2 49 from being offset during movement, thereby improving stability.

[0046] Please see attached Figure 1 and attached Figure 2 A placement box 3 and a control box 2 are fixedly connected to the middle of the fixing frame 1. The placement box 3 is used to place tools used for maintenance. The control box 2 is used for the operator to control the overall operation of the device. A handle 11 is fixedly connected to the top of the upper heating shell 8, a control panel 12 is fixedly connected to one side of the baffle 4, and a transparent panel 5 is fixedly connected to the middle of the baffle 4.

[0047] The handle 11 allows the operator to move the upper heating shell 8, while the transparent panel 5 allows the operator to observe the heating conditions inside the upper heating shell 8 and the lower heating shell 9 at any time; the control panel 12 allows the operator to control the overall operation of the device.

[0048] Working principle: When the conductor 14 is preheated, the two heating wires 15 will perform heating work. When the heating wires 15 are heating, the double-headed motor 17 will work. When the double-headed motor 17 is working, it will drive the fan 18 and the small gear 19 to rotate. When the fan 18 rotates, it will draw external air to the surface of the heating wire 15, so that the air is heated, and the heated air will blow to the surface of the conductor 14, so that the conductor 14 can be heated. When the small gear 19 rotates, it will drive the large gear 22 to mesh at the same time. When the large gear 22 rotates, it drives the rotating rod 20 to rotate, and when the rotating rod 20 rotates, it drives the disc 23 to rotate at the same time. When the disc 23 rotates, it drives the slide bar 24 to perform circular motion, and when the slide bar 24 performs circular motion, it drives the slider 25 to translate. When the slider 25 translates, it drives the cleaning plate 27 to move through the connecting plate 26. When the cleaning plate 27 moves, it drives multiple brushes 28 to move at the same time. When multiple brushes 28 move, the top of the filter plate 50 can be cleaned.

[0049] When the conductor 14 after winding is released, the motor 34 is started. When the motor 34 is working, the connecting block 35 is driven to rotate, and when the connecting block 35 is rotated, the block 37 is driven to move through the slot 36. The movement of the block 37 drives the movable rod 38 to rotate, so that the conductor 14 can be released. When the conductor 14 is fully released, the movable rod 38 is replaced, and the pull rod 31 is manually pulled to move. When the pull rod 31 moves, the limit block 33 is pulled to move at the same time. When the limit block 33 moves, the spring 32 is squeezed. When the limit block 33 squeezes the spring 32, the motor 34 is driven to move at the same time. When the motor 34 moves, the connecting block 35 is driven to move at the same time. When the connecting block 35 moves, the slot 36 and the block 37 are driven to disengage. When the slot 36 and the block 37 are disengaged, the movable rod 38 can be replaced.

[0050] When the tension of the conductor 14 is adjusted, the motor 2 41 is started. When the motor 2 41 works, it drives the connecting rod 45 to rotate. When the connecting rod 45 rotates, it drives the circular gear 46 to rotate at the same time. When the circular gear 46 rotates, it drives the rack plate 1 47 and the rack plate 2 48 to mesh and move. When the rack plate 1 47 and the rack plate 2 48 move at the same time, they drive the moving block 2 49 and the moving block 1 42 to move. When the moving block 2 49 and the moving block 1 42 move, they drive the two adjusting rods 44 to move in opposite directions, so that the tension of the conductor 14 can be adjusted.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conductor preheating device for wire and cable extrusion, comprising a fixing frame (1) and a conductor (14), characterized in that: The top of the fixing frame (1) is fixedly connected with a baffle (4) and a lower heating shell (9); the top of the lower heating shell (9) is rotatably connected with an upper heating shell (8); the middle parts of the lower heating shell (9) and the upper heating shell (8) are fixedly connected with a heating wire (15); the top of the upper heating shell (8) is fixedly connected with a buckle (6); the top of the upper heating shell (8) is provided with a blowing assembly for blowing air to heat the conductor (14); one side of the fixing frame (1) is provided with a replacement assembly for replacing the conductor (14); The blowing assembly comprises a fixed shell (7), the fixed shell (7) being fixedly connected to the top of the upper heating shell (8), a fixed block (16) and a filter plate (50) being fixedly connected to the middle of the fixed shell (7), a double-headed motor (17) being fixedly connected to the middle of the fixed block (16), one output end of the double-headed motor (17) being fixedly connected to a fan (18), the other output end of the double-headed motor (17) being fixedly connected to a pinion (19), and the top of the fixed block (16) being fixedly connected to a fan (18). The rotating rod (20) is movably connected to the rotating rod (20), the outer periphery of which is fixedly connected to a large gear (22) and a limiting ring (21), the large gear (22) and the small gear (19) mesh with each other, the top of the rotating rod (20) is fixedly connected to a disk (23), the top of the disk (23) is fixedly connected to a sliding rod (24), the outer periphery of the sliding rod (24) is slidably connected to a sliding block (25), and one side of the sliding block (25) is provided with a cleaning component for cleaning the surface of the filter plate (50).

2. The conductor preheating device for wire and cable extrusion according to claim 1, characterized in that: The cleaning assembly comprises a connecting plate (26), one end of the connecting plate (26) being fixedly connected to one side of the slider (25), one end of the connecting plate (26) away from the slider (25) being fixedly connected to a cleaning plate (27), and a plurality of brushes (28) being fixedly connected to the bottom of the cleaning plate (27).

3. The conductor preheating device for wire and cable extrusion according to claim 1, characterized in that: The replacement assembly comprises a support plate (10), wherein the support plate (10) is fixedly connected to one side of the fixing frame (1), a fixing plate (13) is fixedly connected to the top of the support plate (10), a movable rod (38) is arranged on the top of the fixing plate (13), the conductor (14) is sleeved on the outer periphery of the movable rod (38), two fixing plates (13) are arranged, one side of one of the fixing plates (13) is fixedly connected to a tension spring (39), one end of the tension spring (39) away from the fixing plate (13) is fixedly connected to a stopper (40), and one side of the other fixing plate (13) is fixedly connected to a support plate (13). A support frame (30), wherein a limit block (33) is slidably connected to a middle portion of the support frame (30), a motor (34) is fixedly connected to one side of the limit block (33), a connecting block (35) is fixedly connected to an output end of the motor (34), a slot (36) is provided on a side of the connecting block (35) away from the motor (34), a block (37) is fixedly connected to an outer wall of the movable rod (38), the block (37) and the slot (36) are engaged with each other, and a connecting component is provided on a side of the limit block (33) away from the motor (34) for driving the limit block (33) to move.

4. The conductor preheating device for wire and cable extrusion according to claim 3, characterized in that: The connecting assembly comprises a pull rod (31), the pull rod (31) being fixedly connected to one side of the limit block (33), the pull rod (31) being slidably connected to the middle of the support frame (30), a spring (32) being fixedly connected to the middle of the support frame (30), and one end of the spring (32) away from the support frame (30) being fixedly connected to one side of the limit block (33).

5. The conductor preheating device for wire and cable extrusion according to claim 3, characterized in that: A dust cover (29) is fixedly connected to the side of the fixed plate (13) away from the support frame (30), and a second motor (41) is fixedly connected to the side of the dust cover (29). A connecting rod (45) is fixedly connected to the output end of the second motor (41), and a circular gear (46) is fixedly connected to the outer periphery of the connecting rod (45). A rack plate 2 (48) and a rack plate 1 (47) are slidably connected inside the dust cover (29), and the rack plate 2 (48) and the rack plate 1 (47) are both meshed with the circular gear (46). An adjustment component is provided on the side of the rack plate 1 (47) away from the second rack plate (48), which is used to adjust the tension of the conductor (14).

6. The conductor preheating device for wire and cable extrusion according to claim 5, characterized in that: The adjustment assembly comprises a moving block 1 (42), wherein the moving block 1 (42) is fixedly connected to one side of the rack plate 1 (47), and a moving block 2 (49) is fixedly connected to a side of the rack plate 2 (48) away from the rack plate 1 (47), and one side of each of the moving block 1 (42) and the moving block 2 (49) is fixedly connected to an adjustment rod (44).

7. The conductor preheating device for wire and cable extrusion according to claim 6, characterized in that: A limiting groove (43) is provided on a side of the dustproof shell (29) away from the second motor (41); the first moving block (42) is slidably connected to the middle of the limiting groove (43); and the limiting groove (43) is used to limit the first moving block (42) and the second moving block (49).

8. The conductor preheating device for wire and cable extrusion according to claim 1, characterized in that: A placement box (3) and a control box (2) are fixedly connected to the middle of the fixing frame (1); the placement box (3) is used to place tools used for maintenance, and the control box (2) is used by an operator to control the entire device to operate.

9. The conductor preheating device for wire and cable extrusion according to claim 1, characterized in that: A handle (11) is fixedly connected to the top of the upper heating shell (8), a control panel (12) is fixedly connected to one side of the baffle (4), and a transparent panel (5) is fixedly connected to the middle of the baffle (4).

Images