Extrusion molding device for charging pile cable
By using a multi-stage extrusion molding, circulating water cooling, and air drying combination device, the problems of uneven sheathing and water stains in the production of charging pile cables have been solved, achieving stable cable processing and drying effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZHITONG CABLE&WIRE CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-12
AI Technical Summary
During the production process of existing charging pile cables, the cable processing parts are unstable, the sheath is uneven, the water cooling effect is poor and water stains remain, which affects the cable storage and use.
A multi-stage extrusion molding, circulating water cooling, wiping drying and air drying combination device is adopted. The cable is treated in multiple stages through extruder, cooling components and air drying device to ensure that the sheath is uniformly formed and thoroughly dried.
It achieves uniform forming and thorough drying of cable sheaths, improves cable processing stability and storage convenience, and avoids water stains and dust contamination.
Smart Images
Figure CN224224472U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable extrusion technology, and more specifically, to an extrusion device for charging pile cables. Background Technology
[0002] Charging pile cables are specialized cables designed specifically for electric vehicle charging equipment. They must meet the requirements of high voltage and high current transmission, while also possessing properties such as wear resistance, oil resistance, high temperature resistance, and aging resistance to ensure charging safety and stability. Their structure typically includes a conductor (such as a copper core), an insulation layer, a shielding layer, and a sheath. The materials for each layer must be precisely selected according to the usage environment. Sheathing the cable is a crucial step in the cable production process. Currently, cable manufacturers generally use an extruder to sheath the cable. The cable passes through the center of the extruder die, and the extruder heats and melts the sheath material, extruding it through a ring of exits in the die, precisely covering the outer layer of the cable. After cooling and other subsequent processing, a sheathed cable is formed.
[0003] Currently, due to the large amount of conductive metal inside the cable, the cable between the pay-off reel and the winding reel is subjected to a certain downward tension, which cannot guarantee the stability of the cable processing parts. This can easily lead to unevenness in the rubber layer added to the outside of the cable. In addition, some extrusion devices directly immerse the cable in water for cooling after processing. However, after long-term use, the water temperature will gradually rise, reducing the cooling effect. At the same time, water stains will remain on the surface of the cable after cooling with water. If the water stains are not cleaned, the cable will slip during storage and may even attract dust, which is not conducive to storage. Utility Model Content
[0004] The main purpose of this utility model is to provide an extrusion device for charging pile cables, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] An extrusion device for charging pile cables includes an extruder body, a feed hopper is fixedly connected to one end of the top of the extruder body, a forming device is fixedly installed on the side of the extruder body, a cooling component is fixedly connected to the right end of the forming device, and a drying device is fixedly installed on the right side of the cooling component.
[0007] The molding device includes a fixed box. A coarse molding tube is fixedly installed at the left end inside the fixed box and is connected to the extruder body. A conical ring is fixedly installed at the right end of the coarse molding tube and a fine molding tube is fixedly installed at the right end of the conical ring. The diameter of the fine molding tube is smaller than that of the coarse molding tube. A heating element is fixedly connected inside the fixed box and is located on the outer surface of the conical ring. Molding cables are movably connected inside the coarse molding tube and the fine molding tube.
[0008] Preferably, the cooling assembly includes a support frame, a cooling water tank is fixedly installed on the top of the support frame, a water collection tank is fixedly installed on the left side of the cooling water tank, a return pipe is fixedly connected to the bottom of the water collection tank, a circulating water tank is fixedly installed at the lower end inside the support frame, the bottom of the return pipe is fixedly connected to the left end of the circulating water tank, a circulating water pump is fixedly installed at the right end of the circulating water tank, an inlet pipe is fixedly installed on the top of the circulating water pump, and the top of the inlet pipe is fixedly connected to the right end of the cooling water tank.
[0009] Preferably, a drying box is fixedly connected to the right end of the cooling water tank, a collection pipe is fixedly connected to the bottom of the drying box, the collection pipe is fixedly installed at the right end of the circulating water tank, a sliding groove is provided on the top of the drying box, a push cylinder is fixedly installed on the right side of the top of the drying box, a moving block is fixedly installed at the output end of the push cylinder, the moving block is slidably installed inside the sliding groove, a first fixing frame is fixedly installed at the right end inside the drying box, a first wiping cotton is fixedly installed inside the first fixing frame, and the first wiping cotton is movably sleeved on the outer surface of the formed cable.
[0010] Preferably, a second fixing frame is fixedly installed on the left side of the upper end of the drying box, a second wiping cotton is fixedly installed on the right side of the second fixing frame, a squeezing sleeve is fixedly installed on the bottom of the moving block, the squeezing sleeve is movably sleeved on the outer surface of the second wiping cotton, the second fixing frame and the second wiping cotton are movably sleeved on the outer surface of the formed cable, and a water leakage hole is opened inside the squeezing sleeve.
[0011] Preferably, the drying device includes a drying box, an air outlet is fixedly installed on the top of the drying box, air inlets are opened at both ends of the bottom of the drying box, a fan assembly is fixedly installed at the lower end of the interior of the drying box, an air supply pipe is fixedly installed on the top of the fan assembly, an air outlet ring pipe is fixedly installed on the top of the air supply pipe, multiple air blowing ports are opened on the inner wall of the air outlet ring pipe, the air outlet ring pipe is movably sleeved on the outer surface of the formed cable, and the air outlet ring pipe is fixedly installed at the upper end of the interior of the drying box.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. Through multi-stage extrusion, air bubbles inside the cable sheath are gradually expelled, making the cable sheath more uniform and improving the forming effect of the cable. The heating plate heats the conical ring, which facilitates the scraping of the cable sheath and makes the forming of the cable sheath more uniform and smooth.
[0014] 2. Cold water enters the cooling water tank through the water inlet pipe, filling the cooling water tank with water. The clean water flows into the water collection tank through the through hole on the left side of the cooling water tank, and then flows back into the circulating water tank through the water collection tank and the return pipe, realizing water circulation, facilitating water heat dissipation, and improving the cooling effect on the formed cable.
[0015] 3. Wipe the outer surface of the formed cable with the second wiping cotton, so that water is absorbed into the interior of the second wiping cotton. Then, by moving the squeezing sleeve on the outer surface of the second wiping cotton, the wet second wiping cotton is squeezed, so that the water drips down through the water leakage hole of the squeezing sleeve and is wiped dry again by the first wiping cotton, which facilitates the drying of the air drying device.
[0016] 4. The fan assembly delivers air through the air supply pipe, allowing the air outlet to dry the water stains on the formed cable, thus improving the drying effect of the formed cable. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the molding device structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the cooling component structure of this utility model;
[0020] Figure 4 For the present utility model Figure 3 Schematic diagram of the structure at point A in the middle;
[0021] Figure 5 This is a schematic diagram of the air-drying device of this utility model.
[0022] The attached figures are labeled as follows: 1. Extruder body; 2. Feed hopper; 3. Forming device; 4. Cooling assembly; 5. Drying device; 6. Forming cable; 31. Fixing box; 32. Coarse forming tube; 33. Conical ring; 34. Fine forming tube; 35. Heating plate; 41. Support frame; 42. Cooling water tank; 43. Water collection tank; 44. Return pipe; 45. Circulating water tank; 46. Circulating water pump; 48. Water supply pipe; 49. Collection pipe; 410. Drying box; 411. First fixing frame; 412. First wiping cotton; 413. Sliding groove; 414. Push cylinder; 415. Moving block; 416. Second fixing frame; 417. Second wiping cotton; 418. Extrusion sleeve; 51. Drying box; 52. Air outlet; 53. Air inlet; 54. Fan assembly; 55. Air supply pipe; 56. Air outlet ring pipe; 57. Air blowing port. Detailed Implementation
[0023] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.
[0024] As attached Figure 1 To be continued Figure 2 As shown, an embodiment of this utility model provides an extrusion device for charging pile cables, including an extruder body 1, a molding device 3, a cooling component 4 and a drying device 5. A feed hopper 2 is fixedly connected to one end of the top of the extruder body 1, the side of the extruder body 1 is fixedly installed with the molding device 3, the right end of the molding device 3 is fixedly connected with the cooling component 4, and the right side of the cooling component 4 is fixedly installed with the drying device 5.
[0025] like Figure 2 The molding device 3 includes a fixed box 31, a coarse molding tube 32, a conical ring 33, and a fine molding tube 34. The left end of the fixed box 31 is fixedly installed with the coarse molding tube 32, which is connected to the extruder body 1. The right end of the coarse molding tube 32 is fixedly installed with the conical ring 33, and the right end of the conical ring 33 is fixedly installed with the fine molding tube 34. The diameter of the fine molding tube 34 is smaller than that of the coarse molding tube 32. A heating element 35 is fixedly connected inside the fixed box 31 and is located on the outer surface of the conical ring 33. Molding cables 6 are movably connected inside the coarse molding tube 32 and the fine molding tube 34.
[0026] The cable sheath is initially extruded through the extruder body 1. Then, it enters the conical ring 33 through the coarse forming tube 32 and is extruded again through the conical ring 33 and the fine forming tube 34. Through multi-stage extrusion, air bubbles inside the cable sheath are gradually expelled, making the cable sheath more uniform and improving the forming effect of the cable. The conical ring 33 is heated by the heating plate 35, which facilitates the scraping of the cable sheath and makes the forming of the cable sheath more uniform and smooth.
[0027] like Figure 3 As shown, the cooling assembly 4 includes a support frame 41, a cooling water tank 42, and a circulating water tank 45. The top of the support frame 41 is fixedly installed with the cooling water tank 42. A water collection tank 43 is fixedly installed on the left side of the cooling water tank 42. A return pipe 44 is fixedly connected to the bottom of the water collection tank 43. The lower end of the support frame 41 is fixedly installed with the circulating water tank 45. The bottom of the return pipe 44 is fixedly connected to the left end of the circulating water tank 45. A circulating water pump 46 is fixedly installed on the right end of the circulating water tank 45. A water inlet pipe 48 is fixedly installed on the top of the circulating water pump 46. The top of the water inlet pipe 48 is fixedly connected to the right end of the cooling water tank 42.
[0028] Using the action of the circulating water pump 46, cold water enters the interior of the cooling water tank 42 through the water inlet pipe 48, filling the interior of the cooling water tank 42 with water. The clean water flows into the interior of the water collection tank 43 through the through hole on the left side of the cooling water tank 42, and then flows back into the interior of the circulating water tank 45 through the water collection tank 43 and the return pipe 44, realizing water circulation, facilitating water heat dissipation, and improving the cooling effect on the molded cable 6.
[0029] like Figure 5 As shown, a drying chamber 410 is fixedly connected to the right end of the cooling water tank 42. A collection pipe 49 is fixedly connected to the bottom of the drying chamber 410. The collection pipe 49 is fixedly installed at the right end of the circulating water tank 45. A sliding groove 413 is provided on the top of the drying chamber 410. A push cylinder 414 is fixedly installed on the right side of the top of the drying chamber 410. A moving block 415 is fixedly installed at the output end of the push cylinder 414. The moving block 415 is slidably installed inside the sliding groove 413. A first fixing frame 411 is fixedly installed at the right end inside the drying chamber 410. A first wiping cotton 412 is fixedly installed inside the first fixing frame 411. The first wiping cotton 412 is movably sleeved on the outer surface of the molded cable 6.
[0030] The drying oven 410 has a second fixed frame 416 fixedly installed on the left side of the upper end, a second wiping cotton 417 fixedly installed on the right side of the second fixed frame 416, a squeezing sleeve 418 fixedly installed at the bottom of the moving block 415, the squeezing sleeve 418 is movably sleeved on the outer surface of the second wiping cotton 417, the second fixed frame 416 and the second wiping cotton 417 are movably sleeved on the outer surface of the formed cable 6, and a water leakage hole is opened inside the squeezing sleeve 418.
[0031] The outer surface of the molded cable 6 is wiped with the second wiping cotton 417, allowing water to be absorbed inside the second wiping cotton 417. The squeezing sleeve 418 moves on the outer surface of the second wiping cotton 417, squeezing the wet second wiping cotton 417, causing water to drip through the drain hole of the squeezing sleeve 418 and flow back into the circulating water tank 45 through the collection pipe 49. The molded cable 6 is then wiped dry again by the first wiping cotton 412, which facilitates the drying of the air drying device 5.
[0032] like Figure 5 As shown, the air drying device 5 includes an air drying box 51. An air outlet 52 is fixedly installed on the top of the air drying box 51. Air inlets 53 are opened at both ends of the bottom of the air drying box 51. A fan assembly 54 is fixedly installed at the lower end inside the air drying box 51. An air supply pipe 55 is fixedly installed on the top of the fan assembly 54. An air outlet ring pipe 56 is fixedly installed on the top of the air supply pipe 55. Multiple air blowing ports 57 are opened on the inner wall of the air outlet ring pipe 56. The air outlet ring pipe 56 is movably sleeved on the outer surface of the molded cable 6. The air outlet ring pipe 56 is fixedly installed at the upper end inside the air drying box 51.
[0033] The working process of this utility model is as follows:
[0034] In use, the formed cable 6 is extruded and formed by the extruder body 1 and enters the interior of the coarse forming tube 32. As the extruder body 1 is conveyed, it enters the conical ring 33 through the coarse forming tube 32 and then the sheath is extruded again through the conical ring 33 and the fine forming tube 34. The conical ring 33 is heated by the operation of the heating plate 35, which facilitates the secondary extrusion and forming of the formed cable 6.
[0035] The formed cable 6 enters the cooling water tank 42 through the water collection tank 43. At this time, the circulating water pump 46 works, so that the cold water in the circulating water tank 45 enters the cooling water tank 42 through the water inlet pipe 48, filling the cooling water tank 42 with water. The clean water flows into the water collection tank 43 through the through hole on the left side of the cooling water tank 42, and then flows back into the circulating water tank 45 through the water collection tank 43 and the return pipe 44. The flowing water facilitates the cooling of the formed cable 6. At the same time, the water in the circulating water tank 45 prevents the water from heating up quickly, thereby improving the cooling effect on the formed cable 6.
[0036] The cooled molded cable 6 enters the interior of the second wiping cotton 417. The second wiping cotton 417 wipes the outer surface of the molded cable 6, allowing water to be absorbed inside the second wiping cotton 417. The cylinder 414 pushes the moving block 415 to move inside the sliding groove 413. The squeezing sleeve 418 moves on the outer surface of the second wiping cotton 417, squeezing the wet second wiping cotton 417. Water drips through the drain hole of the squeezing sleeve 418 and flows back to the interior of the circulating water tank 45 through the collection pipe 49. The molded cable 6 is then wiped dry again by the first wiping cotton 412.
[0037] Subsequently, the formed cable 6 enters the interior of the air outlet ring pipe 56, and the fan assembly 54 delivers air through the air supply pipe 55, so that the air outlet 57 dries the water stains on the formed cable 6, thereby improving the drying effect of the formed cable 6.
[0038] Finally, it should be noted that: the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0039] The above description is only a preferred embodiment of the present utility model and is not intended 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 within the protection scope of the present utility model.
Claims
1. An extrusion device for charging pile cables, comprising an extruder body (1), wherein a feed hopper (2) is fixedly connected to one end of the top of the extruder body (1), characterized in that: A molding device (3) is fixedly installed on the side of the extruder body (1), and a cooling component (4) is fixedly connected to the right end of the molding device (3). A drying device (5) is fixedly installed on the right side of the cooling component (4). The molding device (3) includes a fixed box (31). A coarse molding tube (32) is fixedly installed at the left end of the fixed box (31). The coarse molding tube (32) is connected to the extruder body (1). A conical ring (33) is fixedly installed at the right end of the coarse molding tube (32). A fine molding tube (34) is fixedly installed at the right end of the conical ring (33). The diameter of the fine molding tube (34) is smaller than the diameter of the coarse molding tube (32). A heating element (35) is fixedly connected inside the fixed box (31). The heating element (35) is located on the outer surface of the conical ring (33). A molding cable (6) is movably sleeved inside the coarse molding tube (32) and the fine molding tube (34).
2. The extrusion device for charging pile cables according to claim 1, characterized in that: The cooling assembly (4) includes a support frame (41), a cooling water tank (42) is fixedly installed on the top of the support frame (41), a water collection tank (43) is fixedly installed on the left side of the cooling water tank (42), a return pipe (44) is fixedly connected to the bottom of the water collection tank (43), a circulating water tank (45) is fixedly installed at the lower end inside the support frame (41), the bottom of the return pipe (44) is fixedly connected to the left end of the circulating water tank (45), a circulating water pump (46) is fixedly installed at the right end of the circulating water tank (45), a water inlet pipe (48) is fixedly installed on the top of the circulating water pump (46), and the top of the water inlet pipe (48) is fixedly connected to the right end of the cooling water tank (42).
3. The extrusion device for charging pile cables according to claim 2, characterized in that: A drying box (410) is fixedly connected to the right end of the cooling water tank (42). A collection pipe (49) is fixedly connected to the bottom of the drying box (410). The collection pipe (49) is fixedly installed at the right end of the circulating water tank (45). A sliding groove (413) is opened on the top of the drying box (410). A push cylinder (414) is fixedly installed on the right side of the top of the drying box (410). A moving block (415) is fixedly installed at the output end of the push cylinder (414). The moving block (415) is slidably installed inside the sliding groove (413). A first fixing frame (411) is fixedly installed at the right end inside the drying box (410). A first wiping cotton (412) is fixedly installed inside the first fixing frame (411). The first wiping cotton (412) is movably sleeved on the outer surface of the forming cable (6).
4. The extrusion device for charging pile cables according to claim 3, characterized in that: A second fixing frame (416) is fixedly installed on the left side of the upper end of the drying box (410), and a second wiping cotton (417) is fixedly installed on the right side of the second fixing frame (416). A squeezing sleeve (418) is fixedly installed at the bottom of the moving block (415). The squeezing sleeve (418) is movably sleeved on the outer surface of the second wiping cotton (417). The second fixing frame (416) and the second wiping cotton (417) are movably sleeved on the outer surface of the molded cable (6). A water leakage hole is opened inside the squeezing sleeve (418).
5. The extrusion device for charging pile cables according to claim 1, characterized in that: The air drying device (5) includes an air drying box (51), an air outlet (52) is fixedly installed on the top of the air drying box (51), and air inlets (53) are opened at both ends of the bottom of the air drying box (51). A fan assembly (54) is fixedly installed at the lower end inside the air drying box (51). An air supply pipe (55) is fixedly installed on the top of the fan assembly (54). An air outlet ring pipe (56) is fixedly installed on the top of the air supply pipe (55). Multiple air blowing ports (57) are opened on the inner wall of the air outlet ring pipe (56). The air outlet ring pipe (56) is movably sleeved on the outer surface of the molded cable (6). The air outlet ring pipe (56) is fixedly installed at the upper end inside the air drying box (51).