Core wire coating device for electric wire and cable
By designing the core wire covering device of wire and cable, using the combination of preheating and glue extraction devices, the tight combination of core wire and insulating layer is achieved, solving the problem of insufficient bonding strength between core wire and cladding layer, and improving the production quality of wire and cable.
Patent Information
- Application Number
- CN202521498469.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-17
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2035-07-17
AI Technical Summary
In the production of wire and cables, the interface bonding strength between the core wire and the cladding layer is insufficient, resulting in easy separation of the core wire and the insulating layer.
A core wire covering device of wire and cable is adopted, including a preheating device, a glue discharge device and a cooling device. The preheating barrel is driven to rotate through the thrust component, and the fixing plate and the T-plate rotate, achieving uniform preheating of the core wire and tight fit of the insulating layer. Combined with pushing out the rubber and the core wire, the heater is easily replaced by the shielding component.
The bonding strength between the core wire and the cladding layer is improved, preventing the core wire and the insulating layer from being separated, and ensuring the close bond between the cladding layer and the core wire.
Smart Images
Figure CN223284786U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of production of electric wires and cables, in particular to a core wire covering device of electric wires and cables. Background Art
[0002] As the core carrier of power transmission, wires and cables are typically constructed from three precise layers: a conductive metal core, an insulating layer for electrical isolation, and an outer sheath for mechanical protection. The core wire, the current-carrying medium, is typically made from high-purity copper or aluminum through a drawing and stranding process. Its surface finish directly impacts the quality of the subsequent sheathing process. The insulation layer, formed into a continuous, sealed structure through an extrusion and sheathing process, acts as an electrical barrier to prevent leakage and also acts as a thermal stress buffer. The outer sheath, constructed from high-strength polymer or metal armor, provides the ultimate defense against environmental erosion and mechanical damage.
[0003] When producing extruded coated wires, the core wire temperature is too low during coating molding. When the extruded molten material is bonded to the wire core, it is cooled and rapidly solidifies and cools. The bonding is not tight enough, resulting in a decrease in the interface bonding strength between the core wire and the coating, making the core wire and the coating easy to separate.
[0004] Therefore, in view of the above situation, there is an urgent need to develop a core wire covering device for wires and cables to overcome the shortcomings in current practical applications. Utility Model Content
[0005] The purpose of the embodiments of the present utility model is to provide a core wire covering device for electric wires and cables, aiming to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above objectives, the present invention provides the following technical solutions:
[0007] A core wire covering device for electric wires and cables comprises a base plate, a cooling device, an orienting device and a glue discharging device, wherein the orienting devices are fixedly installed on both sides of the upper end of the base plate, and a preheating device, a glue discharging device and a cooling device are fixedly installed on the base plate in sequence, the preheating device comprises a placement rack, a preheating cylinder is rotatably connected to the placement rack, a thrust assembly is provided on the outer wall of the preheating cylinder, the thrust assembly is used to drive the preheating cylinder to rotate, a plurality of evenly distributed fixed plates are fixedly connected to the inner wall of the preheating cylinder, a T-slot is provided on each of the fixed plates, a T-plate is slidably connected to the inner wall of the T-slot, a heater is fixedly connected to the T-plate, and a shielding assembly is also provided on the inner wall of the preheating cylinder, and the shielding assembly is used to control the opening and closing of one end of the T-slot.
[0008] According to a further technical solution, the thrust assembly includes a first gear, a second gear and a motor; the first gear is fixedly sleeved on the outer wall of the preheating cylinder, the motor is fixedly connected to the placement rack, the driving end of the motor is fixedly connected to the second gear, and the second gear is meshed with the first gear.
[0009] A further technical solution is that the shielding assembly includes a fixed ring, a slip ring and an abutment block; two fixed rings are fixedly connected to the inner wall of the preheating cylinder, and a slip ring is also rotatably connected inside the preheating cylinder. The slip ring is located between the two fixed rings, and both sides of the slip ring abut against the fixed rings respectively. A plurality of evenly distributed abutment blocks are fixedly connected to the slip ring, and the abutment blocks correspond one-to-one to the T-slots, and one side of the abutment block abuts against one end of the fixed plate.
[0010] According to a further technical solution, the inner radius of the slip ring is smaller than the inner radius of the fixed ring.
[0011] According to a further technical solution, the fixed ring and the slip ring are provided with communicating matching holes, and the matching holes are matched with fasteners.
[0012] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art:
[0013] After the core wire is preheated by the preheating device, it passes through the glue dispensing device to form an insulation layer on the surface of the core wire. It is then cooled by the cooling device. The thrust assembly drives the preheating cylinder to rotate. The preheating cylinder drives the T-plate to rotate around the axis of the preheating cylinder through the fixed plate. Then the T-plate drives the heater to rotate around the axis of the preheating cylinder, thereby uniformly preheating the core wire. As a result, the molten material extruded by the glue dispensing device is closely attached to the core wire, thereby improving the bonding strength between the core wire and the coating layer and effectively preventing the core wire from separating from the insulating coating layer.
[0014] Remove the fasteners from the matching holes, then push the slip ring to rotate between the two fixed rings, and then the slip ring drives the abutment block to rotate around the axis of the slip ring. Then the abutment block slides relative to the end of the fixed plate, thereby disengaging from the fixed plate and exposing the T-slot. Then, pull the T-plate outward, thereby pulling out the T-plate and the heater together, so that multiple heaters can be quickly replaced and repaired.
[0015] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0017] Figure 2 For this utility model Figure 1 Schematic diagram of the cross-sectional three-dimensional structure;
[0018] Figure 3 This is a schematic diagram of the three-dimensional structure inside the preheating cylinder of the utility model;
[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixed plate part of the utility model.
[0020] In the figure: 1. Base plate; 2. Cooling device; 3. Orienting device; 4. Glue discharging device; 5. Placement rack; 6. Preheating cylinder; 7. Thrust assembly; 71. First gear; 72. Second gear; 73. Motor; 8. Fixing plate; 9. T-slot; 10. T-plate; 11. Heater; 12. Shielding assembly; 121. Fixing ring; 122. Slip ring; 123. Abutment block; 124. Fastener; 125. Matching hole. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0022] The specific implementation of the present invention is described in detail below with reference to specific embodiments.
[0023] like Figures 1-4 As shown, the embodiment of the present invention provides a core wire covering device for electric wires and cables, comprising a bottom plate 1, a cooling device 2, an orientation device 3 and a glue discharging device 4. Orientation devices 3 are fixedly installed on both sides of the upper end of the bottom plate 1, and the two orientation devices 3 are used to keep the core wire from deviating. A preheating device, a glue discharging device 4 and a cooling device 2 are also fixedly installed on the bottom plate 1 in sequence. The core wire entering the glue discharging device 4 is preheated by the preheating device. The preheating device includes a placement rack 5, and the placement rack 5 is rotated. It is dynamically connected to a preheating cylinder 6, and a thrust assembly 7 is provided on the outer wall of the preheating cylinder 6. The thrust assembly 7 is used to drive the preheating cylinder 6 to rotate. A plurality of evenly distributed fixed plates 8 are fixedly connected to the inner wall of the preheating cylinder 6. Each of the fixed plates 8 is provided with a T-slot 9. A T-plate 10 is slidably connected to the inner wall of the T-slot 9. A heater 11 is fixedly connected to the T-plate 10. A shielding assembly 12 is also provided on the inner wall of the preheating cylinder 6. The shielding assembly 12 is used to control the opening and closing of one end of the T-slot 9.
[0024] It can be understood that the cooling device 2, the orienting device 3 and the glue discharging device 4 are all existing technologies. The glue discharging device 4 is used to form an insulating layer on the surface of the core wire, and the cooling device 2 is used to cool the core wire wrapped with the insulating layer.
[0025] like Figure 1 and Figure 2 As shown, the thrust assembly 7 includes a first gear 71, a second gear 72 and a motor 73; the first gear 71 is fixedly sleeved on the outer wall of the preheating cylinder 6, and the placement rack 5 is fixedly connected to the motor 73. The driving end of the motor 73 is fixedly connected to the second gear 72, and the second gear 72 is meshed with the first gear 71.
[0026] During specific application, the control motor 73 is started, and then the motor 73 drives the second gear 72 to rotate, and then the second gear 72 drives the first gear 71 to rotate, and then the first gear 71 drives the preheating cylinder 6 to rotate.
[0027] like Figure 2 and Figure 3 As shown, the shielding assembly 12 includes a fixed ring 121, a slip ring 122 and an abutment block 123; two fixed rings 121 are fixedly connected to the inner wall of the preheating cylinder 6, and a slip ring 122 is also rotatably connected inside the preheating cylinder 6, the slip ring 122 is located between the two fixed rings 121, and both sides of the slip ring 122 abut against the fixed ring 121 respectively, and a plurality of evenly distributed abutment blocks 123 are fixedly connected to the slip ring 122, and the abutment blocks 123 correspond one-to-one to the T-slot 9, and one side of the abutment block 123 abuts against one end of the fixed plate 8.
[0028] Furthermore, the inner radius of the sliding ring 122 is smaller than the inner radius of the fixing ring 121 , thereby preventing the fixing ring 121 from interfering with the abutment block 123 and hindering the movement of the abutment block 123 .
[0029] Furthermore, a connecting mating hole 125 is provided on the fixing ring 121 and the slip ring 122, and the mating hole 125 is provided with a fastener 124. The fixing ring 121 and the slip ring 122 are fixed together by the fastener 124 and the mating hole 125, thereby limiting the rotation of the slip ring 122, so that the abutment block 123 can always close one end of the T-slot 9.
[0030] During specific application, the fastener 124 is removed from the matching hole 125, and then the slip ring 122 is pushed to rotate between the two fixed rings 121, and then the slip ring 122 drives the abutment block 123 to rotate around the axis of the slip ring 122, and then the abutment block 123 slides relative to the end of the fixed plate 8, thereby disengaging from the fixed plate 8 and exposing the T-slot 9, and then the T-plate 10 is pulled outward, thereby pulling out the T-plate 10 and the heater 11 together, and then the heater 11 can be replaced and repaired, and then the replaced and repaired T-plate 10 and heater 11 are pushed into the T-slot 9, and then the slip ring 122 is controlled to reset, and the slip ring 122 drives the abutment block 123 to reset, thereby abutting the end of the fixed plate 8, thereby abutting the T-plate 10, thereby closing one end of the T-slot 9, and then limiting the T-plate 10 from sliding along the inner wall of the T-slot 9.
[0031] In the embodiment of the present invention, after the core wire is preheated by the preheating device, it then passes through the glue discharging device 4 to form an insulating layer on the surface of the core wire, and then passes through the cooling device 2 to cool down. The thrust assembly 7 drives the preheating cylinder 6 to rotate, and the preheating cylinder 6 drives the T-shaped plate 10 to rotate around the axis of the preheating cylinder 6 through the fixing plate 8. Then the T-shaped plate 10 drives the heater 11 to rotate around the axis of the preheating cylinder 6, thereby uniformly preheating the core wire, so that the molten material extruded by the glue discharging device 4 is closely attached to the core wire, thereby improving the bonding between the core wire and the coating layer. strength, effectively preventing the core wire from separating from the insulating coating; remove the fastener 124 from the matching hole 125, and then push the slip ring 122 to rotate between the two fixed rings 121, and then the slip ring 122 drives the abutment block 123 to rotate around the axis of the slip ring 122, and then the abutment block 123 slides relative to the end of the fixed plate 8, thereby disengaging from the fixed plate 8, exposing the T-slot 9, and then pulling the T-plate 10 outward, thereby pulling out the T-plate 10 and the heater 11 together, so that multiple heaters 11 can be quickly replaced and repaired.
[0032] The working principle of the present invention is as follows: the core wire passes through the preheating cylinder 6, which is driven to rotate by the thrust assembly 7. The preheating cylinder 6 drives the T-plate 10 to rotate around the axis of the preheating cylinder 6 through the fixing plate 8. The T-plate 10 then drives the heater 11 to rotate around the axis of the preheating cylinder 6, thereby uniformly preheating the core wire. Then, an insulating layer is formed on the surface of the core wire through the glue discharge device 4, and then it is cooled by the cooling device 2. In addition, the shielding assembly 12 allows for quick and convenient replacement and maintenance of the heater 11. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A core wire covering device for electric wires and cables, comprising a base plate (1), a cooling device (2), an orientation device (3) and a glue discharging device (4), wherein the orientation devices (3) are fixedly mounted on both sides of the upper end of the base plate (1), and a preheating device, a glue discharging device (4) and a cooling device (2) are fixedly mounted on the base plate (1) in sequence, characterized in that: The preheating device comprises a placement rack (5), a preheating cylinder (6) is rotatably connected to the placement rack (5), a thrust assembly (7) is provided on the outer wall of the preheating cylinder (6), a plurality of evenly distributed fixing plates (8) are fixedly connected to the inner wall of the preheating cylinder (6), each fixing plate (8) is provided with a T-slot (9), a T-plate (10) is slidably connected to the inner wall of the T-slot (9), a heater (11) is fixedly connected to the T-plate (10), and a shielding assembly (12) is provided on the inner wall of the preheating cylinder (6), and the shielding assembly (12) is used to control the opening and closing of one end of the T-slot (9).
2. The core wire covering device of the electric wire and cable according to claim 1, characterized in that: The thrust assembly (7) includes a first gear (71), a second gear (72) and a motor (73); A first gear (71) is fixedly sleeved on the outer wall of the preheating cylinder (6), a motor (73) is fixedly connected to the placement rack (5), a driving end of the motor (73) is fixedly connected to a second gear (72), and the second gear (72) is meshed with the first gear (71).
3. The core wire covering device of the electric wire and cable according to claim 1, characterized in that: The shielding assembly (12) comprises a fixing ring (121), a sliding ring (122) and an abutment block (123); Two fixed rings (121) are fixedly connected to the inner wall of the preheating cylinder (6), and a slip ring (122) is rotatably connected inside the preheating cylinder (6). The slip ring (122) is located between the two fixed rings (121), and both sides of the slip ring (122) are respectively in contact with the fixed rings (121). A plurality of evenly distributed abutting blocks (123) are fixedly connected to the slip ring (122), and the abutting blocks (123) correspond one-to-one to the T-slots (9). One side of the abutting block (123) is in contact with one end of the fixed plate (8).
4. The core wire covering device of the electric wire and cable according to claim 3, characterized in that: The inner radius of the slip ring (122) is smaller than the inner radius of the fixed ring (121).
5. The core wire covering device of electric wire and cable according to claim 4, characterized in that: The fixing ring (121) and the sliding ring (122) are provided with communicating matching holes (125), and the matching holes (125) are matched with fasteners (124).