High-speed production double-plastic-extruding-machine serial extrusion device for special photovoltaic cable

Abstract

The utility model relates to the technical field of cable processing equipment, and discloses a photovoltaic special cable high-speed production double-plastic-extruding-machine serial extrusion device which comprises a bottom plate, and the upper surface of the bottom plate is provided with a stirring mechanism, a first plastic extruding machine, a forming mechanism, a cooling mechanism and a second plastic extruding machine. According to the utility model, the forming mechanism is arranged between the first plastic extruding machine and the second plastic extruding machine, the driving motor can be utilized to drive the two driving screw rods to rotate simultaneously, then the propelling sleeve is driven to move towards the inside of the forming box, and then the propelling sleeve drives the two arc-shaped extruding plates to extrude plastic on the surface of a cable, so that the plastic extruding efficiency is improved. According to the invention, the effect of molding and reinforcing the plastic on the surface of the cable is achieved, the plastic sheath and the cable are tighter and are filled as a whole, the outer diameters of the plastic sheath and the cable can be kept consistent in the production process, the practicability and the aesthetic property of the cable are improved, the production speed is increased, and the surface quality of the cable is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable processing equipment, and more specifically to a double extruder serial extrusion device for high-speed production of photovoltaic special cables. Background Art

[0002] Photovoltaic cables are an indispensable part of solar photovoltaic power generation systems. In addition to the huge demand for urban industrial electricity, photovoltaic power generation also provides great help for remote and developing areas. Extruder is an important plastic machinery. Most of the production and manufacturing of plastic products can be achieved by extrusion molding. When producing cables, the cable plastic and wire core need to be added into the extruder together, and then the cable is extruded through the extruder.

[0003] For example, a cable extruder with announcement number CN219988391U includes an extrusion tube, a feed tube and a breaking bin, one end of the extrusion tube is equipped with a first motor, and the output end of the first motor is equipped with a first rotating shaft extending to the inside of the extrusion tube, the end of the first rotating shaft away from the first motor is equipped with an extrusion rod, and the top of the extrusion tube near the first motor is equipped with a feed tube. The utility model is equipped with a second motor, a guide tube, a feed tube and a spiral feed shaft. When feeding, the second motor drives the spiral feed shaft to rotate at a constant speed, and the raw materials can be fed into the extrusion tube at a constant speed, which can not only avoid the accumulation of raw materials causing blockage inside the extrusion tube, but also make the raw materials uniform.

[0004] When the cable extruder proposed in the above patent document is in use, the cable cannot be formed and cooled in time after the first layer of extrusion processing, which leads to poor surface tightness and insufficient overall roundness of the cable during the second layer of extrusion, thus affecting the quality of the cable. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a dual extruder serial extrusion device for high-speed production of photovoltaic special cables, which has the advantages of ensuring high roundness of the product and ensuring the surface quality of the wire core, so as to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solution: a high-speed production double extruder serial extrusion device for photovoltaic special cables, comprising a bottom plate, the upper surface of which is respectively provided with a stirring mechanism, a first extruder, a molding mechanism, a cooling mechanism, and a second extruder, the first extruder is used to extrude a first layer of plastic for the cable, and the second extruder is used to extrude a second layer of plastic for the cable;

[0007] The stirring mechanism is used to stir and discharge the cable plastic, and a plastic conveying pipe is fixedly connected between the first extruder and the stirring mechanism;

[0008] The molding mechanism and the cooling mechanism are located between the first extruder and the second extruder, and the molding mechanism and the cooling mechanism are interconnected. The molding mechanism is used to reinforce and mold the cable extruded by the first extruder, and the cooling mechanism is used to cool the surface of the first layer of extruded cable;

[0009] The forming mechanism includes a forming box, the upper surface and both sides of the forming box are fixedly connected with a transmission box, the inner wall of the transmission box is rotatably connected with a transmission rod, the transmission rod is transversely arranged inside the transmission box, and the left and right ends of the transmission rod are fixedly connected with a first transmission gear, the inner wall of the transmission box is rotatably provided with two longitudinally distributed linkage rods, the top end of the linkage rod is fixedly connected with a second transmission gear, and the bottom end of the linkage rod is fixedly connected with a worm gear, both sides of the forming box are rotatably provided with a driving screw, one end of the driving screw extends to the interior of the forming box, and the surface of the driving screw is threadedly connected with a propulsion sleeve, and the opposite ends of the two propulsion sleeves are fixedly connected with arc extrusion plates.

[0010] Furthermore, the other end of the driving screw rod away from the propulsion sleeve extends to the interior of the transmission box and is fixedly connected with a worm wheel, the position of the worm wheel corresponds to the worm, and the worm is meshed with the worm wheel.

[0011] Furthermore, the first transmission gear is meshed with the second transmission gear, a driven gear is fixedly connected to the middle part of the transmission rod, a driving motor is fixedly installed on the surface of the transmission box, an output shaft of the driving motor extends to the interior of the transmission box and is fixed with a driving gear, and the driving gear is meshed with the driven gear.

[0012] Furthermore, the inner wall of the forming box is fixedly connected to a limiting slide rod, the lower surface of the propulsion sleeve is fixedly connected to a limiting guide plate, the surface of the limiting guide plate is provided with a guide through hole matching the limiting slide rod, and the limiting guide plate is slidably connected to the surface of the limiting slide rod via the guide through hole.

[0013] Furthermore, the cooling mechanism includes a cooling box, a cooling air pump is fixedly installed on the upper surface of the cooling box, the output end of the cooling air pump is fixedly connected to an air supply pipe, the inner top wall of the cooling box is fixedly connected to an air guide square tube, the output end of the air supply pipe extends to the interior of the air guide square tube, and arc-shaped cooling shells are fixedly provided on both sides of the air guide square tube, and a plurality of strip-shaped air outlet holes are provided on the opposite surfaces of the two arc-shaped cooling shells.

[0014] Furthermore, an air handling box is fixedly connected to the upper surface of the cooling box, a dust filter is installed on the inner wall of the air handling box, and a plurality of air inlet holes are opened on the surface of the air handling box, the input end of the cooling air pump extends to the interior of the air handling box, the dust filter is located between the air inlet hole and the cooling air pump, and an exhaust hole is opened on the upper surface of the cooling box.

[0015] Furthermore, the stirring mechanism includes a stirring barrel, a stirring motor is fixedly installed on the upper surface of the stirring barrel, the output shaft of the stirring motor extends into the interior of the stirring barrel and is fixedly connected to a stirring rod, a stirring frame is fixedly connected to the surface of the stirring rod, and an electric heater is fixedly provided on the inner wall of the stirring barrel.

[0016] Furthermore, a wire core feed pipe is fixedly embedded in the upper surface of the first extruder, and a guide pulley is rotatably provided at the top end of the wire core feed pipe, and the guide pulley is used to transport and guide the cable wire core.

[0017] Technical effects and advantages of the utility model:

[0018] 1. The utility model is provided with a molding mechanism between the first extruder and the second extruder, and can utilize a driving motor to drive two driving screws to rotate simultaneously, thereby driving a propulsion sleeve to move toward the inside of a molding box, and then driving two arc-shaped extrusion plates to extrude the plastic on the surface of the cable through the propulsion sleeve, thereby achieving the effect of molding and reinforcing the plastic on the surface of the cable, making the plastic sheath and the cable tighter and filling as a whole, and maintaining consistency in the outer diameter during the production process, which is beneficial to improving the practicability and aesthetics of the cable, while increasing the production speed and greatly improving the surface quality of the cable.

[0019] 2. The utility model provides a cooling mechanism, and before the cable enters the second extruder for extruding the second layer of plastic, the cooling air pump on the surface of the cooling box can be used to transport cooling air to the inside of the two arc-shaped cooling shells, so that the cable can be blown and cooled in all directions by a plurality of air outlets on the surface of the arc-shaped cooling shell, thereby improving the cooling and molding speed of the plastic on the cable surface, and improving the molding hardness of the first layer of plastic on the cable surface, which is conducive to the subsequent extrusion of the second layer of plastic on the cable surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0021] Figure 2 This is a rear view structural diagram of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the cooling box of the utility model;

[0023] Figure 4This is a schematic diagram of the side section structure of the molding box of the utility model;

[0024] Figure 5 This is a schematic diagram of the front cross-section structure of the air handling box of the utility model;

[0025] Figure 6 This is a schematic diagram of the front section structure of the mixing barrel of the utility model.

[0026] The reference numerals are: 1, stirring mechanism; 2, first extruder; 3, molding mechanism; 4, cooling mechanism; 5, second extruder; 6, plastic conveying pipe; 7, wire core feeding pipe; 8, guide pulley;

[0027] 101. stirring barrel; 102. stirring motor; 103. stirring frame; 104. electric heater;

[0028] 301, forming box; 302, transmission box; 303, transmission rod; 304, first transmission gear; 305, linkage rod; 306, second transmission gear; 307, worm; 308, driving screw; 309, pushing sleeve; 310, arc extrusion plate; 311, worm gear; 312, driven gear; 313, driving motor; 314, driving gear; 315, limit slide rod; 316, limit guide plate;

[0029] 401. Cooling box; 402. Cooling air pump; 403. Air supply duct; 404. Square air guide tube; 405. Curved cooling shell; 406. Air outlet; 407. Air handling box; 408. Dust filter; 409. Air inlet; 410. Exhaust hole. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The utility model is involved in a high-speed production twin-extruder serial extrusion device for photovoltaic special cables and is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0031] Reference Figure 1-6 The utility model provides a dual extruder serial extrusion device for high-speed production of photovoltaic special cables, including a bottom plate, and the upper surface of the bottom plate is respectively provided with a stirring mechanism 1, a first extruder 2, a molding mechanism 3, a cooling mechanism 4 and a second extruder 5. The first extruder 2 is used for extruding the first layer of plastic for the cable, and the second extruder 5 is used for extruding the second layer of plastic for the cable.

[0032] The stirring mechanism 1 is used for stirring and discharging the cable plastic. A plastic conveying pipe 6 is fixedly connected between the first extruder 2 and the stirring mechanism 1. A core feed pipe 7 is fixedly embedded in the upper surface of the first extruder 2. A guide pulley 8 is rotatably provided at the top of the core feed pipe 7. The guide pulley 8 is used for conveying and guiding the cable core.

[0033] Through the above technical solution, the guide pulley 8 can be used to guide the cable core entering the core feeding tube 7, thereby improving the smoothness of the core feeding process.

[0034] The stirring mechanism 1 includes a stirring barrel 101, on the upper surface of which a stirring motor 102 is fixedly mounted, the output shaft of the stirring motor 102 extends into the interior of the stirring barrel 101 and is fixedly connected to a stirring rod, on the surface of the stirring rod a stirring frame 103 is fixedly connected, and on the inner wall of the stirring barrel 101 an electric heater 104 is fixedly provided.

[0035] Through the above technical scheme, the stirring motor 102 can be used to drive the stirring frame 103 to stir the plastic in the stirring barrel 101, and the electric heater 104 can be used to heat the plastic to keep the plastic in a flowing state and avoid pipeline blockage, thereby facilitating the transportation of the plastic to the inside of the extruder.

[0036] The molding mechanism 3 and the cooling mechanism 4 are located between the first extruder 2 and the second extruder 5, and are interconnected. The molding mechanism 3 is used to reinforce and mold the cable extruded by the first extruder 2, and the cooling mechanism 4 is used to cool the surface of the first layer of extruded cable.

[0037] The molding mechanism 3 includes a molding box 301, the upper surface and both sides of the molding box 301 are fixedly connected with a transmission box 302, the inner wall of the transmission box 302 is rotatably connected with a transmission rod 303, the transmission rod 303 is transversely arranged inside the transmission box 302, and the left and right ends of the transmission rod 303 are fixedly connected with a first transmission gear 304, the first transmission gear 304 is meshed with the second transmission gear 306, the middle part of the transmission rod 303 is fixedly connected with a driven gear 312, and a driving motor 313 is fixedly installed on the surface of the transmission box 302, the output shaft of the driving motor 313 extends to the inside of the transmission box 302, and is fixed with a driving gear 314, and the driving gear 314 is meshed with the driven gear 312.

[0038] The inner wall of the transmission box 302 is rotatably provided with two longitudinally distributed linkage rods 305 , the top end of the linkage rod 305 is fixedly connected to the second transmission gear 306 , and the bottom end of the linkage rod 305 is fixedly connected to the worm 307 .

[0039] The other end of the driving screw 308 away from the propulsion sleeve 309 extends to the inside of the transmission box 302 and is fixedly connected with a worm wheel 311 . The position of the worm wheel 311 corresponds to the worm 307 , and the worm 307 is meshed with the worm wheel 311 .

[0040] A driving screw 308 is rotatably provided on both sides of the molding box 301, one end of the driving screw 308 extends to the interior of the molding box 301, and a propulsion sleeve 309 is threadedly connected to the surface of the driving screw 308, and the opposite ends of the two propulsion sleeves 309 are fixedly connected with an arc-shaped extrusion plate 310. The two arc-shaped extrusion plates 310 can be combined into a circular ring shape, and the size of the circular ring matches the cable, so that the surface of the cable can be wrapped and extruded.

[0041] It is worth mentioning that, by arranging a molding mechanism 3 between the first extruder 2 and the second extruder 5, after the first layer of extrusion processing is performed on the cable, the cable is directly input into the molding box 301, and then the driving motor 313 is used to drive the transmission rod 303 to rotate, and drive the two linkage rods 305 to rotate at the same time. The linkage rod 305 drives the two driving screws 308 to rotate at the same time through the worm 307 and the worm wheel 311, and then drives the propulsion sleeve 309 to move into the molding box 301. The two arc-shaped extrusion plates 310 are driven by the propulsion sleeve 309 to extrude the plastic on the surface of the cable, so as to achieve the effect of reinforcing the plastic molding on the surface of the cable, so that the plastic sheath and the cable are more tightly filled and filled as a whole, and the outer diameter can be kept consistent during the production process, which is beneficial to improving the practicality and aesthetics of the cable, while increasing the production speed and greatly improving the surface quality of the cable.

[0042] The inner wall of the forming box 301 is fixedly connected with a limiting slide bar 315, and the lower surface of the pushing sleeve 309 is fixedly connected with a limiting guide plate 316. The surface of the limiting guide plate 316 is provided with a guide through hole matching the limiting slide bar 315, and the limiting guide plate 316 is slidably connected with the surface of the limiting slide bar 315 through the guide through hole.

[0043] The cooling mechanism 4 includes a cooling box 401, a cooling air pump 402 is fixedly installed on the upper surface of the cooling box 401, the output end of the cooling air pump 402 is fixedly connected to the air supply pipe 403, the inner top wall of the cooling box 401 is fixedly connected to the air guide square tube 404, the output end of the air supply pipe 403 extends to the interior of the air guide square tube 404, and arc-shaped cooling shells 405 are fixedly provided on both sides of the air guide square tube 404, and a plurality of strip-shaped air outlet holes 406 are provided on the opposite surfaces of the two arc-shaped cooling shells 405.

[0044] An air handling box 407 is fixedly connected to the upper surface of the cooling box 401, a dust filter 408 is installed on the inner wall of the air handling box 407, and a plurality of air inlet holes 409 are opened on the surface of the air handling box 407. The input end of the cooling air pump 402 extends to the interior of the air handling box 407, the dust filter 408 is located between the air inlet hole 409 and the cooling air pump 402, and an exhaust hole 410 is opened on the upper surface of the cooling box 401.

[0045] Through the above technical scheme, after the cable passes through the molding box 301, it enters the cooling box 401, and the cooling air pump 402 can be used to transport air to the air guide square tube 404, and the air guide square tube 404 transports the cold air to the inside of the two arc-shaped cooling shells 405, so that the cable can be blown and cooled in all directions by a plurality of air outlet holes 406 on the surface of the arc-shaped cooling shell 405, thereby improving the cooling and molding speed of the plastic on the cable surface, and improving the molding hardness of the first layer of plastic on the cable surface, which is conducive to the subsequent extrusion of the second layer of plastic on the cable surface.

[0046] Finally, it should be noted that the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model. The above description is only a preferred embodiment of the present utility model and is not used to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A high-speed production double extruder extrusion device for photovoltaic special cables, including a bottom plate, characterized in that: The upper surface of the bottom plate is respectively provided with a stirring mechanism (1), a first extruder (2), a molding mechanism (3), a cooling mechanism (4) and a second extruder (5); the first extruder (2) is used for extruding a first layer of plastic for the cable, and the second extruder (5) is used for extruding a second layer of plastic for the cable; The stirring mechanism (1) is used to stir and discharge the cable plastic, and a plastic conveying pipe (6) is fixedly connected between the first extruder (2) and the stirring mechanism (1); The molding mechanism (3) and the cooling mechanism (4) are located between the first extruder (2) and the second extruder (5), and the molding mechanism (3) and the cooling mechanism (4) are interconnected. The molding mechanism (3) is used to reinforce and mold the cable extruded by the first extruder (2), and the cooling mechanism (4) is used to cool the surface of the first layer of extruded cable. The molding mechanism (3) comprises a molding box (301), the upper surface and both sides of the molding box (301) are fixedly connected to a transmission box (302), the inner wall of the transmission box (302) is rotatably connected to a transmission rod (303), the transmission rod (303) is transversely arranged inside the transmission box (302), and the left and right ends of the transmission rod (303) are fixedly connected to a first transmission gear (304), and the inner wall of the transmission box (302) is rotatably provided with two longitudinally distributed linkage rods (305), The top end of the linkage rod (305) is fixedly connected to a second transmission gear (306), and the bottom end of the linkage rod (305) is fixedly connected to a worm (307). Drive screws (308) are rotatably provided on both sides of the molding box (301). One end of the drive screw (308) extends into the interior of the molding box (301), and a propulsion sleeve (309) is threadedly connected to the surface of the drive screw (308). The opposite ends of the two propulsion sleeves (309) are fixedly connected to arc-shaped extrusion plates (310).

2. According to claim 1, a photovoltaic special cable high-speed production double extruder serial extrusion device is characterized by: The other end of the driving screw (308) away from the propulsion sleeve (309) extends to the interior of the transmission box (302) and is fixedly connected to a worm wheel (311). The position of the worm wheel (311) corresponds to the worm (307), and the worm (307) is meshed with the worm wheel (311).

3. The high-speed production double extruder serial extrusion device for photovoltaic special cables according to claim 1 is characterized by: The first transmission gear (304) is meshed with the second transmission gear (306); a driven gear (312) is fixedly connected to the middle of the transmission rod (303); a driving motor (313) is fixedly mounted on the surface of the transmission box (302); an output shaft of the driving motor (313) extends into the interior of the transmission box (302) and is fixed with a driving gear (314); and the driving gear (314) is meshed with the driven gear (312).

4. The high-speed production double extruder serial extrusion device for photovoltaic special cables according to claim 1 is characterized by: The inner wall of the molding box (301) is fixedly connected to a limiting slide bar (315), the lower surface of the propulsion sleeve (309) is fixedly connected to a limiting guide plate (316), the surface of the limiting guide plate (316) is provided with a guide through hole matching the limiting slide bar (315), and the limiting guide plate (316) is slidably connected to the surface of the limiting slide bar (315) through the guide through hole.

5. The high-speed production double extruder serial extrusion device for photovoltaic special cables according to claim 1 is characterized by: The cooling mechanism (4) comprises a cooling box (401), a cooling air pump (402) is fixedly installed on the upper surface of the cooling box (401), an output end of the cooling air pump (402) is fixedly connected to an air supply pipe (403), an inner top wall of the cooling box (401) is fixedly connected to an air guide square tube (404), the output end of the air supply pipe (403) extends to the interior of the air guide square tube (404), arc-shaped cooling shells (405) are fixedly arranged on both sides of the air guide square tube (404), and a plurality of strip-shaped air outlet holes (406) are provided on the opposite surfaces of the two arc-shaped cooling shells (405).

6. A photovoltaic special cable high-speed production double extruder serial extrusion device according to claim 5, characterized in that: An air handling box (407) is fixedly connected to the upper surface of the cooling box (401), a dust filter (408) is installed on the inner wall of the air handling box (407), and a plurality of air inlet holes (409) are provided on the surface of the air handling box (407). The input end of the cooling air pump (402) extends to the interior of the air handling box (407), the dust filter (408) is located between the air inlet hole (409) and the cooling air pump (402), and an exhaust hole (410) is provided on the upper surface of the cooling box (401).

7. The high-speed production double extruder serial extrusion device for photovoltaic special cables according to claim 1 is characterized by: The stirring mechanism (1) comprises a stirring barrel (101), a stirring motor (102) is fixedly mounted on the upper surface of the stirring barrel (101), an output shaft of the stirring motor (102) extends into the interior of the stirring barrel (101) and is fixedly connected to a stirring rod, a stirring frame (103) is fixedly connected to the surface of the stirring rod, and an electric heater (104) is fixedly arranged on the inner wall of the stirring barrel (101).

8. The high-speed production double extruder serial extrusion device for photovoltaic special cables according to claim 1 is characterized by: A wire core feed pipe (7) is fixedly embedded in the upper surface of the first extruder (2), and a guide pulley (8) is rotatably provided at the top end of the wire core feed pipe (7), and the guide pulley (8) is used to transport and guide the cable wire core.

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