A cable production enameling machine

Abstract

The present application relates to the field of enameled machine, disclose a kind of enameled machine for cable production, including by left to right sequentially arranged pay-off roll, annealing furnace and dip chamber, the right side of dip chamber is fixedly connected with fixed frame, and the left side of fixed frame is located above dip chamber by sequentially fixedly connected with drying furnace and winding roller from bottom to top, first wire rack is equipped between pay-off roll and annealing furnace and between drying furnace and winding roller, and first wire rack is movably connected with first wire roller, and wire recovery assembly for being wound and recovered to broken wire is equipped in dip chamber and on the left side of first fixed frame of annealing furnace;It can make the wire material that stays in annealing furnace or drying furnace inside when breaking can be quickly extracted, avoid wire material in annealing furnace or drying furnace rapidly carbonization and form "old glue", adhere to furnace wall or tuyere, lead to subsequent product surface appear particle, orange peel or pinhole defect, ensure that the quality of subsequent enameled operation is not affected.

Description

Technical Field

[0001] This invention relates to the field of enameling machine technology, and more specifically, to an enameling machine for cable production. Background Technology

[0002] A cable is a device for transmitting electrical energy or signals, typically composed of several or groups of conductors. Types of cables include power cables, control cables, compensating cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, and many more.

[0003] Enameling machines are specialized equipment for producing enameled wires, which involves coating the surface of copper or aluminum wires with polyester insulating varnish and then curing it.

[0004] During the cable enameling process, problems such as uncontrolled tension, material defects, equipment failure, or improper operation can lead to wire breakage. After the wire breaks, not only will the remaining wire become tangled due to tension imbalance, but the broken wire will also carbonize rapidly if it remains in the oven without being pulled out in time, forming "old glue" that adheres to the oven wall or tuyeres. This results in particle, orange peel, or pinhole defects on the surface of subsequent products. Cleaning is time-consuming and affects the uniformity of the heat field. Therefore, how to remove the wire from the oven and annealing furnace in a timely manner when it breaks is an urgent problem to be solved. Summary of the Invention

[0005] This invention provides an enameling machine for cable production, which solves the technical problem in related technologies where broken cables cannot be promptly removed from the baking furnace and annealing furnace during the enameling process, resulting in carbonization of the wires and adhesion to the furnace wall, causing defects in subsequent products.

[0006] This invention provides an enameling machine for cable production, comprising a wire feeding roller, an annealing furnace, and an impregnation chamber arranged sequentially from left to right. A fixed frame is fixedly connected to the right side of the impregnation chamber, and a drying furnace and a winding roller are fixedly connected sequentially from bottom to top on the left side of the fixed frame above the impregnation chamber. A first wire guide frame is provided between the wire feeding roller and the annealing furnace, and between the drying furnace and the winding roller, and a first wire guide roller is movably connected between the first wire guide frames. Broken wire recovery components for winding and recovering broken wires are provided inside the impregnation chamber and on the first fixed frame on the left side of the annealing furnace.

[0007] The broken wire recycling assembly includes a first wire frame and a connecting frame inside the impregnation chamber. A fixed shaft is fixedly connected to the bottom of the connecting frame, and a movable shaft is movably connected between adjacent fixed shafts. A first wire wheel is movably connected to the outside of the movable shaft through a damping bearing. Both ends of the movable shaft pass through the inside of the fixed shaft and are fixedly connected to a rotating shaft. A coil spring is fixedly connected between the rotating shaft and the inside of the fixed shaft.

[0008] As a further optimization of the present invention, the first guide wheel is provided with an integrally formed elastic part, and a deformation cavity is provided between the elastic part and the first guide wheel. The elastic force of the coil spring is greater than the resistance encountered when the movable shaft rotates and less than the damping force of the damping bearing.

[0009] As a further optimization of the present invention, the interior of the impregnation chamber is provided with a stirring assembly, the stirring assembly including a rotating roller rotatably connected to the interior of the impregnation chamber, and a second guide wheel with the same structure as the first guide wheel rotatably connected to the exterior of the rotating roller, the surface of the second guide wheel being fixedly connected to a limiting seat, and a stirring rod being movably connected inside the limiting seat.

[0010] As a further optimization of the present invention, the stirring rod is a hollow structure, and the interior of the stirring rod is filled with counterweight balls, and the inner wall of the limiting seat is movably fitted with ball bearings.

[0011] As a further optimization of the present invention, both ends of the stirring rod are fixedly connected to a lever plate, and the lever plate has an arc-shaped structure. A brush is fixedly connected to the side of the lever plate that is close to each other.

[0012] As a further optimization of the present invention, a paint recovery assembly is provided at the upper end of the paint immersion chamber. The paint recovery assembly includes a support frame fixedly connected to the top of the paint immersion chamber, and a paint scraper is fixedly connected to the surface of the support frame. A paint baffle is fixedly connected to the bottom of the paint scraper.

[0013] As a further optimization of the present invention, a motor is fixedly connected to the top of the paint baffle, and the output shaft of the motor passes through to the bottom of the paint baffle and is fixedly connected to a turntable. The paint baffle is wrapped with a paint guide cylinder, and the inner side of the paint guide cylinder is a frustum-shaped channel that is narrow at the top and wide at the bottom.

[0014] As a further optimization of the present invention, a second guide frame is fixedly connected to the top of the impregnation chamber, and a second guide roller is movably connected to the surface of the second guide frame.

[0015] As a further optimization of the present invention, the surface of the first guide frame is provided with a tension stabilizing component. The tension stabilizing component includes a groove formed inside the first guide frame, and a slider is slidably connected inside the groove. A third guide roller is movably connected between the sliders, and a spring is fixedly connected between the slider and the groove.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. The enameling machine for cable production described in this invention uses a coil spring to reset and loosen, which drives the rotating shaft to rotate. The rotation of the rotating shaft drives the movable shaft to rotate synchronously, which in turn drives the first guide wheel on the surface of the movable shaft to rotate and wind the wire around its surface. This allows the wire that remains inside the annealing furnace or drying furnace when it breaks to be quickly extracted, preventing the wire from rapidly carbonizing in the annealing furnace or drying furnace to form "old glue" that adheres to the furnace wall or tuyeres, causing particle, orange peel, or pinhole defects on the surface of subsequent products. This ensures that the quality of subsequent enameling operations is not affected, while reducing cleaning time and not affecting the uniformity of the heat field.

[0018] 2. The enameling machine for cable production described in this invention uses a rotating stirring rod to agitate the varnish inside the impregnation chamber, thereby preventing varnish separation and ensuring uniform enameling. During rotation, the internal counterweight balls move from bottom to top and then slide back down, altering the weight distribution at both ends of the stirring rod. This causes the stirring rod to slide downwards along the limiting seat using ball bearings, resulting in a shorter section of the stirring rod above the second guide wheel than the lower section. This prevents the stirring rod from being exposed to the outside of the varnish during agitation due to a drop in the varnish level, which could introduce air bubbles into the varnish coating on the wire. Simultaneously, the up-and-down sliding of the stirring rod also moves an arc-shaped agitator to agitate the varnish, improving agitation uniformity. Furthermore, the brush bristles on the agitator clean the wire surface during agitation, breaking up air bubbles and increasing the uniformity and density of the varnish adhesion, thus improving the quality of the wire enameling.

[0019] 3. The enameling machine for cable production described in this invention uses a baffle plate to shield the scraped enamel liquid, preventing excessive accumulation and its ascent over the scraper cylinder along with the wire. Additionally, a guide cylinder is fitted outside the scraper cylinder, and a motor drives a turntable to rotate. The turntable's rotation transfers the enamel liquid located in the center of the baffle plate to the edge. During this transfer, as the turntable retracts, the enamel liquid inside the guide cylinder is blocked by the inner wall of the guide cylinder, causing it to be intercepted. The guide cylinder's narrow-at-the-top, wide-at-the-bottom structure allows the enamel liquid to flow along its inner wall into the impregnation chamber, ensuring that the scraped enamel liquid is smoothly recovered regardless of the wire's movement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the impregnation chamber of the present invention;

[0022] Figure 3 This is a view combining the fixed axis and the movable axis of the present invention;

[0023] Figure 4 This is a partial structural diagram of the wire breakage recovery component of the present invention;

[0024] Figure 5 This is a schematic cross-sectional view of the first guide wheel of the present invention;

[0025] Figure 6 This is a partial structural diagram of the mixing component of the present invention;

[0026] Figure 7 This is a cross-sectional view of the stirring rod and the limiting seat of the present invention;

[0027] Figure 8 This is the present invention. Figure 7 Enlarged view of point A in the middle;

[0028] Figure 9 This is a partial structural diagram of the paint recovery component of the present invention;

[0029] Figure 10 This invention Figure 1 Enlarged view of point A in the middle.

[0030] In the picture:

[0031] 10. Pay-off roller; 11. First guide frame; 12. First guide roller; 13. Annealing furnace; 14. Impregnation chamber; 15. Fixing frame; 16. Drying oven; 17. Take-up roller; 18. Second guide frame; 19. Second guide roller;

[0032] 20. Broken wire recovery assembly; 21. Connecting frame; 22. Fixed shaft; 23. Movable shaft; 24. First guide wheel; 25. Rotating shaft; 26. Coil spring; 27. Elastic part; 28. Deformation cavity; 29. ​​Damping bearing;

[0033] 30. Mixing assembly; 31. Rotating roller; 32. Second guide wheel; 33. Limiting seat; 34. Stirring rod; 35. Counterweight ball; 36. Ball bearing; 37. Paddle plate; 38. Brush;

[0034] 40. Paint recovery assembly; 41. Support frame; 42. Paint scraper; 43. Paint baffle; 44. Turntable; 45. Paint guide tube; 46. Motor;

[0035] 50. Tension stabilizing component; 51. Third guide roller; 52. Slider; 53. Slide groove; 54. Spring. Detailed Implementation

[0036] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0037] like Figure 1 , Figure 2 and Figure 10 As shown in the embodiment of the present invention, a cable production enameling machine includes a wire feeding roller 10, an annealing furnace 13, and an impregnation chamber 14 arranged sequentially from left to right. A fixing frame 15 is fixedly connected to the right side of the impregnation chamber 14, and a drying furnace 16 and a winding roller 17 are fixedly connected sequentially from bottom to top on the left side of the fixing frame 15 above the impregnation chamber 14. First conductor frames 11 are provided between the wire feeding roller 10 and the annealing furnace 13, and between the drying furnace 16 and the winding roller 17, and the first conductor frames 11 are movably connected to each other. The first guide roller 12, the top of the impregnation chamber 14 is fixedly connected to the second guide frame 18, and the surface of the second guide frame 18 is movably connected to the second guide roller 19. The surface of the first guide frame 11 is provided with a tension stabilizing component 50. The tension stabilizing component 50 includes a groove 53 opened on the inner side of the first guide frame 11, and a slider 52 is slidably connected inside the groove 53. A third guide roller 51 is movably connected between the sliders 52, and a spring 54 is fixedly connected between the sliders 52 and the groove 53.

[0038] It should be noted that, firstly, the wire wound on the unwinding roller 10 is annealed in the annealing furnace 13, and then the annealed wire is immersed in the varnish in the varnish chamber 14 for varnishing. After varnishing, the wire enters the drying furnace 16 for drying. Finally, the wire is wound on the take-up roller 17 to complete the enameling operation. In addition, during the entire enameling operation, the wire is conveyed by the first guide roller 12 on the first guide frame 11 and the second guide roller 19 on the second guide frame 18. At the same time, tension stabilizing components 50 are set on both first guide frames 11. In the initial state, the wire wound by the take-up roller 17 in one rotation is shorter than the wire released by the unwinding roller 10 in one rotation. Therefore, initially... The slider 52 is located at the top of the groove 53. In this way, as the enameling operation continues, the wire on the surface of the pay-off roller 10 decreases in diameter, while the wire on the surface of the take-up roller 17 increases in diameter. This increases the length of wire wound by the take-up roller 17 in one rotation, while decreasing the length of wire released by the pay-off roller 10 in one rotation. Therefore, in order to control the tension stability, the wire will exert downward pressure on the third guide roller 51 when it passes through the third guide roller 51. This causes the slider 52 to slide inside the groove 53, driving the third guide roller 51 to move downward, thereby achieving torque adjustment, maintaining the tension stability during wire conveying, and reducing the risk of wire breakage due to tension changes.

[0039] like Figures 2 to 5 As shown, the inside of the impregnation chamber 14 and the first fixed frame 15 on the left side of the annealing furnace 13 are both provided with a broken wire recycling assembly 20 for winding and recycling broken wires; the broken wire recycling assembly 20 includes a first wire frame 11 and a connecting frame 21 inside the impregnation chamber 14, and a fixed shaft 22 is fixedly connected to the bottom of the connecting frame 21. A movable shaft 23 is movably connected between adjacent fixed shafts 22, and a first wire wheel 24 is movably connected to the outside of the movable shaft 23 through a damping bearing 29. The two ends of the movable shaft 23 pass through the inside of the fixed shaft 22 and are fixedly connected to a rotating shaft 25, and a coil spring 26 is fixedly connected between the rotating shaft 25 and the inside of the fixed shaft 22.

[0040] The first guide wheel 24 has an integrally formed elastic part 27 inside, and a deformation cavity 28 is opened between the elastic part 27 and the first guide wheel 24. The elastic force of the coil spring 26 is greater than the resistance encountered when the movable shaft 23 rotates and less than the damping force of the damping bearing 29.

[0041] It should be noted that during the wire coating process, the wire passes through the first guide roller 24. After passing through the first guide roller 24, the wire is squeezed into the deformation cavity 28 by the elastic part 27, causing deformation. At the same time, the elastic part 27 applies a reaction force to the wire, clamping it. During wire transport, the friction generated by clamping drives the first guide roller 24 to rotate. When the first guide roller 24 rotates, it first drives the movable shaft 23 to rotate, which in turn drives the rotating shaft 25 to rotate. The rotating shaft 25 then winds the coil spring 26 until it is completely wound around the rotating shaft 25. The taut coil spring 26 then restricts the rotation of the rotating shaft 25. At this point, the first guide roller 24 is connected to the movable shaft 24 via the damping bearing 29. The relative rotation of shaft 23 ensures normal wire feeding. When the wire breaks during feeding, the coil spring 26 returns to its original position and rotates, causing the rotating shaft 25 to rotate. The rotation of the rotating shaft 25 causes the movable shaft 23 to rotate synchronously, which in turn causes the first guide wheel 24 on the surface of the movable shaft 23 to rotate and wind the wire around its surface. This allows the wire that broke and remained inside the annealing furnace 13 or drying furnace 16 to be quickly extracted, preventing the wire from rapidly carbonizing in the annealing furnace 13 or drying furnace 16 to form "old glue" that adheres to the furnace wall or tuyeres, causing particle, orange peel, or pinhole defects on the surface of subsequent products. This ensures that the quality of subsequent enameling operations is not affected, while reducing cleaning time and not affecting the uniformity of the heat field.

[0042] like Figure 2 and Figures 6 to 8 As shown, the impregnation chamber 14 is equipped with a stirring assembly 30. The stirring assembly 30 includes a rotating roller 31 rotatably connected inside the impregnation chamber 14, and a second guide wheel 32 with the same structure as the first guide wheel 24 is rotatably connected to the outside of the rotating roller 31. A limiting seat 33 is fixedly connected to the surface of the second guide wheel 32, and a stirring rod 34 is movably connected inside the limiting seat 33. The stirring rod 34 is a hollow structure, and a counterweight ball 35 is filled inside the stirring rod 34. A ball bearing 36 is movably embedded in the inner wall of the limiting seat 33. A lever 37 is fixedly connected to both ends of the stirring rod 34, and the lever 37 is an arc-shaped structure. A brush 38 is fixedly connected to the side of the lever 37 that is close to each other.

[0043] It should be noted that during the enameling process, as time increases, the enamel liquid inside the immersion chamber 14 will settle and separate, resulting in uneven enameling on the surface of the wire and affecting product quality.

[0044] Based on this, when the wire passes through the second guide wheel 32, it causes the second guide wheel 32 to rotate. The rotation of the second guide wheel 32 causes the limiting seat 33 to rotate synchronously. The rotation of the limiting seat 33 causes the stirring rod 34 to rotate, stirring the paint liquid inside the impregnation chamber 14, thereby preventing paint separation and ensuring uniform coating. Furthermore, during rotation, as the stirring rod 34 rotates, the counterweight ball 35 inside moves from the bottom to the top and then slides down from the top to the bottom. During this sliding process, the gravity at both ends of the stirring rod 34 changes, causing the stirring rod 34 to slide downwards along the inside of the limiting seat 33 using the ball bearings 36, thus further agitating the paint. The portion of rod 34 above the second guide wheel 32 is shorter than the portion below it. This is to prevent the stirring rod 34 from being exposed to the outside of the paint during the stirring process due to the drop in the liquid level of the immersion chamber 14. This would prevent external air from being introduced into the paint during stirring, causing air bubbles to form on the surface of the wire. At the same time, as the stirring rod 34 slides up and down, it can also drive the arc-shaped baffle 37 to move the paint, improving the uniformity of stirring. Furthermore, during the stirring process, the bristles on the baffle 37 will clean the surface of the wire, thereby breaking the air bubbles attached to the surface of the wire, increasing the uniformity and density of paint adhesion, and improving the quality of wire coating.

[0045] like Figure 2 and Figure 9 As shown, the upper end of the paint immersion chamber 14 is provided with a paint recovery assembly 40. The paint recovery assembly 40 includes a support frame 41 fixedly connected to the top of the paint immersion chamber 14, and a paint scraper 42 is fixedly connected to the surface of the support frame 41. A paint baffle 43 is fixedly connected to the bottom of the paint scraper 42. A motor 46 is fixedly connected to the top of the paint baffle 43, and the output shaft of the motor 46 passes through to the bottom of the paint baffle 43 and is fixedly connected to a turntable 44. The paint baffle 43 is wrapped with a paint guide tube 45, and the inner side of the paint guide tube 45 is a frustum-shaped channel that is narrow at the top and wide at the bottom.

[0046] It should be noted that, due to the viscosity of the paint, a large amount of paint will adhere to the surface of the wire after it comes out of the immersion chamber 14. Excessive paint does not meet the requirements of the enameling process and also prevents the drying oven 16 from drying it quickly.

[0047] Based on this, after the wire comes out of the varnish-impregnation chamber 14, it passes through the varnish-scraping cylinder 42, causing the wire to be conveyed upward along the center of the dry varnish-scraping cylinder 42. During the conveying process, the varnish-scraping cylinder 42 scrapes off the excess varnish from the surface of the wire. At the same time, the varnish-blocking plate 43 blocks the scraped varnish, preventing the varnish from accumulating too much and rising with the wire over the varnish-scraping cylinder 42. In addition, a varnish-guided cylinder 45 is fitted outside the varnish-scraping cylinder 42, and a motor 46 drives a turntable 44 to rotate. The rotation of the turntable 44 transfers the varnish located in the middle of the varnish-blocking plate 43 to the edge. During the transfer, the varnish on the area inside the varnish-guided cylinder 45 is blocked by the inner wall of the varnish-guided cylinder 45, so that the varnish is intercepted on the inner wall of the varnish-guided cylinder 45. The structure of the inner wall of the varnish-guided cylinder 45, which is narrow at the top and wide at the bottom, allows the varnish to flow down the inner wall of the varnish-guided cylinder 45 into the varnish-impregnation chamber 14, so that the scraped varnish can be smoothly recovered without being affected by the movement of the wire.

[0048] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A cable coating machine, comprising a wire feeding roller (10), an annealing furnace (13), and an impregnation chamber (14) arranged sequentially from left to right, wherein a fixing frame (15) is fixedly connected to the right side of the impregnation chamber (14), and a drying furnace (16) and a winding roller (17) are fixedly connected sequentially from bottom to top above the impregnation chamber (14) on the left side of the fixing frame (15), wherein a first conductor frame (11) is provided between the wire feeding roller (10) and the annealing furnace (13) and between the drying furnace (16) and the winding roller (17), and a first conductor roller (12) is movably connected between the first conductor frames (11), characterized in that: The impregnation chamber (14) and the first fixed frame (15) on the left side of the annealing furnace (13) are both equipped with a broken wire recycling assembly (20) for winding and recycling broken wires. The broken wire recovery assembly (20) includes a first wire frame (11) and a connecting frame (21) inside the impregnation chamber (14). A fixed shaft (22) is fixedly connected to the bottom of the connecting frame (21). A movable shaft (23) is movably connected between adjacent fixed shafts (22). A first wire wheel (24) is movably connected to the outside of the movable shaft (23) through a damping bearing (29). Both ends of the movable shaft (23) pass through the inside of the fixed shaft (22) and are fixedly connected to a rotating shaft (25). A coil spring (26) is fixedly connected between the rotating shaft (25) and the inside of the fixed shaft (22).

2. The enameling machine for cable production according to claim 1, characterized in that: The first guide wheel (24) has an integrally formed elastic part (27) inside, and a deformation cavity (28) is opened between the elastic part (27) and the first guide wheel (24). The elastic force of the coil spring (26) is greater than the resistance encountered when the movable shaft (23) rotates and less than the damping force of the damping bearing (29).

3. The enameling machine for cable production according to claim 2, characterized in that: The interior of the immersion chamber (14) is provided with a stirring assembly (30). The stirring assembly (30) includes a rotating roller (31) rotatably connected inside the immersion chamber (14), and a second guide wheel (32) with the same structure as the first guide wheel (24) is rotatably connected to the outside of the rotating roller (31). A limiting seat (33) is fixedly connected to the surface of the second guide wheel (32), and a stirring rod (34) is movably connected inside the limiting seat (33).

4. The enameling machine for cable production according to claim 3, characterized in that: The stirring rod (34) is a hollow structure, and the interior of the stirring rod (34) is filled with counterweight balls (35), and the inner wall of the limiting seat (33) is movably fitted with balls (36).

5. The enameling machine for cable production according to claim 4, characterized in that: Both ends of the stirring rod (34) are fixedly connected to a lever (37), and the lever (37) has an arc-shaped structure. A brush (38) is fixedly connected to the side of the lever (37) that is close to each other.

6. The enameling machine for cable production according to claim 5, characterized in that: The upper end of the immersion chamber (14) is provided with a paint recovery assembly (40). The paint recovery assembly (40) includes a support frame (41) fixedly connected to the top of the immersion chamber (14), and a paint scraper (42) is fixedly connected to the surface of the support frame (41). A paint baffle (43) is fixedly connected to the bottom of the paint scraper (42).

7. The enameling machine for cable production according to claim 6, characterized in that: A motor (46) is fixedly connected to the top of the paint baffle (43), and the output shaft of the motor (46) passes through to the bottom of the paint baffle (43) and is fixedly connected to a turntable (44). The paint baffle (43) is wrapped with a paint guide cylinder (45), and the inner side of the paint guide cylinder (45) is a frustum-shaped channel that is narrow at the top and wide at the bottom.

8. The enameling machine for cable production according to claim 7, characterized in that: The top of the impregnation chamber (14) is fixedly connected to a second guide frame (18), and the surface of the second guide frame (18) is movably connected to a second guide roller (19).

9. The enameling machine for cable production according to claim 8, characterized in that: The surface of the first guide frame (11) is provided with a tension stabilizing component (50). The tension stabilizing component (50) includes a groove (53) opened on the inner side of the first guide frame (11), and a slider (52) is slidably connected inside the groove (53). A third guide roller (51) is movably connected between the sliders (52), and a spring (54) is fixedly connected between the sliders (52) and the groove (53).

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