Cable outer insulation layer machine

Abstract

The utility model relates to cable processing technical field, concretely relates to a cable outer insulation layer machine, including hot melt box and blanking machine, blanking machine fixed mounting is in the rear end of hot melt box, the inside fixed connection of hot melt box has the material conveying pipeline, the position fixed connection of hot melt box front side surface is located material conveying pipeline front end, the rear end of material conveying pipeline is fixed in the inside of blanking machine, the inside of blanking machine is provided with screening subassembly, and screening subassembly includes first material collecting hopper, second material collecting hopper, pulverizer, feed pipe, protective cover, second motor, transmission shaft, driving gear, screening cylinder, screening net and transmission gear ring, second motor drives screening cylinder to rotate, and the screening of plastic particles is carried out, and the secondary crushing of larger plastic particles is carried out through the pulverizer, effectively improve the uniformity of plastic particles, improve the melting effect, and then make internal pressure keep stable, improve the uniformity of plastic solution extrusion, and then effectively improve the production quality of cable.

Description

Technical Field

[0001] This utility model relates to the field of cable processing technology, specifically to a cable outer insulation layer machine. Background Technology

[0002] Cables generally consist of three parts: a conductor, an insulation layer, and a protective layer. There are typically two types: power cables and control cables. Power cables are mainly used for the transmission and distribution of electrical energy; control cables are mainly used for measurement, protection, and control circuits. During the cable manufacturing process, an insulation layer needs to be coated onto the surface of the metal wire. In current cable processing technology, the plastic granule supply device is a key piece of equipment to ensure a stable supply of plastic raw materials to the extruder. During the feeding process, plastic granules are often directly added into the inside of the feed hopper, and then the heating module melts the plastic granules in the conduit into a liquid state. The liquid is then extruded outwards by spiral blades to coat the surface of the metal wire.

[0003] However, in actual use, plastic granules may vary in size. If the granules are too large, the subsequent heating speed will be slower, resulting in unstable extrusion pressure of the extruder. This can cause uneven thickness of the cable insulation layer or sheath, affecting the processing quality of subsequent products.

[0004] Therefore, it is necessary to invent a cable outer insulation layer machine to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a cable outer insulation layer machine to solve the problem that the plastic particles are of different sizes, which leads to a slower heating rate of the particles and unstable extrusion pressure in the extruder, resulting in uneven thickness of the cable insulation layer or sheath, and affecting the processing quality of subsequent products.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cable outer insulation layer machine, comprising a hot melt box and a feeding machine, wherein the feeding machine is fixedly installed at the rear end of the hot melt box, a conveying pipe is fixedly connected inside the hot melt box, a covering die head is fixedly connected to the front surface of the hot melt box at the front end of the conveying pipe, the rear end of the conveying pipe is fixed inside the feeding machine, and a screening assembly is provided inside the feeding machine, the screening assembly comprising a first collecting hopper, a second collecting hopper, a crusher, a feed pipe, a protective cover, a second motor, a drive shaft, a drive gear, a screening cylinder, a screening screen, and a transmission gear ring.

[0007] By adopting the above technical solution, the feeding machine is used to guide plastic granules into the inside of the conveying pipe. The conveying pipe transports the plastic granules forward, while the hot melt box melts the plastic granules at the front end of the conveying pipe. Then, the molten plastic is extruded into the inside of the coating die, and the molten plastic is coated on the surface of the metal wire to form an insulating layer. At the same time, the plastic granules inside the feeding machine are screened by the screening component, and the plastic granules that do not meet the standards are screened out and subjected to secondary crushing. Then, they are discharged into the inside of the conveying pipe.

[0008] Optionally, the feeder is internally fixedly connected to a partition, and the two ends of the screening cylinder are rotatably connected to the partition and the right wall of the feeder, respectively. Multiple sets of screening screens are fixedly connected to the surface of the screening cylinder.

[0009] By adopting the above technical solution, the screening cylinder and screening screen work together to screen plastic particles.

[0010] Optionally, a fixed frame is fixedly connected to the right side surface of the feeding machine, the feeding pipe is fixedly connected to the middle of the fixed frame, and the left end of the feeding pipe is rotatably connected to the right end of the screening cylinder.

[0011] By adopting the above technical solution, the feed pipe is used to guide plastic particles into the interior of the screening cylinder.

[0012] Optionally, multiple sets of support rods are fixedly connected between the inner wall of the right side of the feeding machine and the partition plate. Positioning rollers are fixedly connected to both ends of the support rods. Positioning rings are fixedly connected to both sides of the screening cylinder. The positioning rings are tangent to the positioning rollers.

[0013] By adopting the above technical solution, multiple sets of support rods and positioning rollers cooperate to support the screening cylinder. Optionally, the protective cover is fixed to the upper end of the feeding machine, the drive shaft is rotatably connected to the inner walls of the left and right sides of the protective cover, the second motor is fixedly installed at the right end of the protective cover, the right end of the drive shaft is fixedly connected to the output end of the second motor through a coupling, the drive gear is fixedly connected to the right side of the drive shaft, the transmission gear ring is fixedly connected to the right side of the screening cylinder, the drive gear meshes with the transmission gear ring, and multiple sets of striking elements are fixedly connected to the surface of the drive shaft.

[0014] By adopting the above technical solution, the second motor drives the drive gear to rotate through the transmission shaft. The drive gear and the transmission gear ring cooperate to drive the screening cylinder to rotate. During the rotation of the screening cylinder, the plastic particles are broken up and discharged from the screening screen by centrifugal force. The transmission shaft drives the striking parts to rotate and strike the surface of the screening screen to prevent the plastic particles from getting stuck in the mesh and being unable to be discharged.

[0015] Optionally, the first collecting hopper is fixedly connected to the inner wall of the feeder at the position below the screening cylinder, the second collecting hopper is fixedly connected to the left side surface of the partition at the position at the left end of the screening cylinder, and the crusher is fixedly connected to the lower end of the second collecting hopper.

[0016] By adopting the above technical solution, the first hopper is used to collect plastic granules that meet the standards, and the second hopper is used to collect larger plastic granules, which are then crushed again by a crusher.

[0017] Optionally, two sets of feed boxes are fixedly connected to the rear end of the conveying pipe, and the two sets of feed boxes are respectively fixedly connected to the lower end of the first collecting hopper and the crusher.

[0018] By adopting the above technical solution, the feed box is used to guide plastic granules into the interior of the conveying pipe.

[0019] Optionally, a spiral blade is rotatably connected inside the conveying pipe, and a first motor is fixedly installed at the right end of the conveying pipe, with the output end of the first motor fixedly connected to the right end of the spiral blade.

[0020] By adopting the above technical solution, the output end of the first motor drives the spiral blades to rotate, conveying the plastic granules to the front.

[0021] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0022] 1. This utility model utilizes a second motor, a drive gear, and a transmission gear ring to drive the screening cylinder to rotate, thereby screening the introduced plastic granules. Qualified granules are directly collected into the conveying pipe, while larger plastic granules are crushed a second time by a crusher before being discharged into the conveying pipe. This effectively improves the uniformity of the plastic granules, enhances the melting effect, stabilizes the internal pressure, improves the uniformity of the plastic solution extrusion, and thus effectively improves the production quality of cables.

[0023] 2. This utility model installs a drive shaft on the upper side of the feeding machine and uses a second motor to drive the drive shaft to rotate. The drive shaft drives multiple sets of striking parts on its surface to strike the surface of the screening screen, thereby clearing the mesh holes of the screening screen, effectively preventing mesh blockage and improving screening efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the external structure of the material conveying pipe of this utility model;

[0027] Figure 4 This is a schematic diagram of the internal structure of the material conveying pipe of this utility model;

[0028] Figure 5 This is a schematic diagram of the sieving cylinder structure of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Hot melt box; 11. Coating die head; 12. Conveying pipe; 13. Feed box; 14. Spiral blade; 15. First motor; 2. Feeder; 21. Partition plate; 22. First hopper; 23. Second hopper; 24. Crusher; 25. Support rod; 26. Positioning roller; 27. Fixing frame; 28. Feed pipe; 3. Protective cover; 31. Second motor; 32. Drive shaft; 33. Striking component; 34. Drive gear; 4. Screening cylinder; 41. Screening screen; 42. Positioning ring; 43. Transmission gear ring. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0032] This utility model provides, for example Figures 1 to 4The cable insulation layer machine shown includes a hot melt box 1 and a feeding machine 2. The feeding machine 2 is fixedly installed at the rear end of the hot melt box 1. A conveying pipe 12 is fixedly connected inside the hot melt box 1. A covering die head 11 is fixedly connected to the front surface of the hot melt box 1 at the front end of the conveying pipe 12. The rear end of the conveying pipe 12 is fixed inside the feeding machine 2. A spiral blade 14 is rotatably connected inside the conveying pipe 12. A first motor 15 is fixedly installed at the right end of the conveying pipe 12. The output end of the first motor 15 is fixedly connected to the right end of the spiral blade 14. A screening assembly is provided inside the feeding machine 2. The screening assembly includes a first collecting hopper 22, a second collecting hopper 23, a crusher 24, a feed pipe 28, a protective cover 3, a second motor 31, a drive shaft 32, a drive gear 34, a screening cylinder 4, a screening screen 41, and a transmission gear ring 43. During the process of coating the cable insulation layer, the metal wire is passed through the inside of the coating die head 11. After the equipment is started, the feeder 2 introduces the plastic granules into the inside of the conveying pipe 12. The output end of the conveying pipe 12 drives the spiral blade 14 to rotate, conveying the plastic granules forward. When the plastic granules pass through the hot melt box 1, the hot melt box 1 melts the plastic granules inside the conveying pipe 12, making the plastic granules liquid. At this time, as the conveying pipe 12 continues to convey the material forward, the molten plastic is squeezed into the inside of the coating die head 11, so that the molten plastic coats the surface of the metal wire, completing the coating of the insulation layer on the surface of the metal wire. At the same time, during the feeding process, the screening component inside the feeder 2 screens the plastic granules to improve the uniformity of the plastic granules.

[0033] See Figure 2 and Figure 5 The feeder 2 is fixedly connected to a partition 21. The two ends of the screening cylinder 4 are rotatably connected to the partition 21 and the right wall of the feeder 2, respectively. Multiple screening screens 41 are fixedly connected to the surface of the screening cylinder 4. A fixed frame 27 is fixedly connected to the right side surface of the feeder 2. The feed pipe 28 is fixedly connected to the middle of the fixed frame 27. The left end of the feed pipe 28 is rotatably connected to the right end of the screening cylinder 4. The first collection hopper 22 is fixedly connected to the inner wall of the feeder 2 at the lower side of the screening cylinder 4. The second collection hopper 23 is fixedly connected to the left side surface of the partition 21 at the left end of the screening cylinder 4. The crusher 24 is fixedly connected to the lower end of the second collection hopper 23. Two sets of feed boxes 13 are fixedly connected to the rear end of the conveying pipe 12. The two sets of feed boxes 13 are fixedly connected to the lower ends of the first collection hopper 22 and the crusher 24, respectively.

[0034] In addition, the screening cylinder 4 is set at an angle. During the feeding process, the material is introduced into the interior of the screening cylinder 4 through the feed pipe 28. The screening cylinder 4 screens the plastic particles during rotation, so that qualified plastic particles fall directly through the mesh on the surface of the screening screen 41 into the interior of the first collection hopper 22. The first collection hopper 22 feeds the plastic particles into the interior of the conveying pipe 12. Larger plastic particles will remain inside the screening cylinder 4 and be discharged into the interior of the second collection hopper 23 as the screening cylinder 4 rotates. The second collection hopper 23 sends the larger plastic particles into the interior of the crusher 24 for crushing. The crushed plastic particles are then discharged into the interior of the conveying pipe 12.

[0035] See Figure 2 and Figure 5 Multiple sets of support rods 25 are fixedly connected between the inner wall of the right side of the feeding machine 2 and the partition plate 21. Positioning rollers 26 are fixedly connected to both ends of the support rods 25. Positioning rings 42 are fixedly connected to both sides of the screening cylinder 4. The positioning rings 42 are tangent to the positioning rollers 26. The protective cover 3 is fixed to the upper end of the feeding machine 2. The transmission shaft 32 is rotatably connected to the inner walls of the left and right sides of the protective cover 3. The second motor 31 is fixedly installed at the right end of the protective cover 3. The right end of the transmission shaft 32 is fixedly connected to the output end of the second motor 31 through a coupling. The drive gear 34 is fixedly connected to the right side of the transmission shaft 32. The transmission gear ring 43 is fixedly connected to the right side of the screening cylinder 4. The drive gear 34 and the transmission gear ring 43 are meshed. Multiple sets of striking parts 33 are fixedly connected to the surface of the transmission shaft 32.

[0036] Specifically, multiple sets of support rods 25 and positioning rollers 26 work together to support the screening cylinder 4, and the screening cylinder 4 rotates through the positioning ring 42 and the positioning rollers 26.

[0037] During the screening process, the output end of the second motor 31 drives the transmission shaft 32 to rotate, which in turn drives the drive gear 34 and the striking element 33 to rotate. The drive gear 34 drives the transmission gear ring 43 to rotate, which in turn drives the screening cylinder 4 to rotate, thus breaking up and screening the plastic particles. At the same time, multiple sets of striking elements 33 continuously strike the surface of the screening screen 41 during the rotation process, preventing plastic particles from getting stuck in the mesh of the screening screen 41 and improving screening efficiency.

[0038] The working principle of this utility model is as follows: By using the second motor 31, the drive gear 34, and the transmission gear ring 43 to drive the screen cylinder 4 to rotate, the introduced plastic particles are screened. Qualified particles are directly collected into the conveying pipe 12. Larger plastic particles are crushed a second time by the crusher 24 before being discharged into the conveying pipe 12, which effectively improves the uniformity of the plastic particles, improves the melting effect, and thus keeps the internal pressure stable, improves the uniformity of the plastic solution extrusion, and thus effectively improves the production quality of cables. At the same time, by installing the drive shaft 32 on the upper side of the feeder 2 and using the second motor 31 to drive the drive shaft 32 to rotate, the drive shaft 32 drives multiple sets of striking parts 33 on its surface to strike the surface of the screen 41, clearing the mesh of the screen 41, effectively avoiding mesh blockage and improving screening efficiency.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A cable outer insulation layer machine, comprising a hot melt box (1) and a feeding machine (2), characterized in that: The feeding machine (2) is fixedly installed at the rear end of the hot melt box (1). The hot melt box (1) is fixedly connected to the inside of the hot melt box (1). The front surface of the hot melt box (1) is fixedly connected to the front end of the hot melt box (1) with a covering die head (11). The rear end of the hot melt box (12) is fixed inside the feeding machine (2). The feeding machine (2) is equipped with a screening component. The screening component includes a first collection hopper (22), a second collection hopper (23), a crusher (24), a feed pipe (28), a protective cover (3), a second motor (31), a drive shaft (32), a drive gear (34), a screening cylinder (4), a screening screen (41), and a transmission gear ring (43).

2. The cable outer insulation layer machine according to claim 1, characterized in that: The feeder (2) is internally fixedly connected to a partition (21), and the two ends of the screening cylinder (4) are rotatably connected to the partition (21) and the right wall of the feeder (2), respectively. Multiple sets of screening screens (41) are fixedly connected to the surface of the screening cylinder (4).

3. The cable outer insulation layer machine according to claim 1, characterized in that: A fixed frame (27) is fixedly connected to the right side surface of the feeding machine (2), the feeding pipe (28) is fixedly connected to the middle part of the fixed frame (27), and the left end of the feeding pipe (28) is rotatably connected to the right end of the screening cylinder (4).

4. A cable outer insulation layer machine according to claim 2, characterized in that: Multiple sets of support rods (25) are fixedly connected between the inner wall of the right side of the feeding machine (2) and the partition plate (21). Positioning rollers (26) are fixedly connected to both ends of the support rods (25). Positioning rings (42) are fixedly connected to both sides of the screening cylinder (4). The positioning rings (42) are tangent to the positioning rollers (26).

5. A cable outer insulation layer machine according to claim 1, characterized in that: The protective cover (3) is fixed at the upper end of the feeder (2). The transmission shaft (32) is rotatably connected to the inner walls of the left and right sides of the protective cover (3). The second motor (31) is fixedly installed at the right end of the protective cover (3). The right end of the transmission shaft (32) is fixedly connected to the output end of the second motor (31) through a coupling. The drive gear (34) is fixedly connected to the right side of the transmission shaft (32). The transmission gear ring (43) is fixedly connected to the right side of the screening cylinder (4). The drive gear (34) meshes with the transmission gear ring (43). Multiple sets of striking parts (33) are fixedly connected to the surface of the transmission shaft (32).

6. A cable outer insulation layer machine according to claim 2, characterized in that: The first hopper (22) is fixedly connected to the inner wall of the feeder (2) at the position below the screening cylinder (4), the second hopper (23) is fixedly connected to the left side surface of the partition (21) at the position at the left end of the screening cylinder (4), and the crusher (24) is fixedly connected to the lower end of the second hopper (23).

7. A cable outer insulation layer machine according to claim 6, characterized in that: Two sets of feed boxes (13) are fixedly connected to the rear end of the conveying pipe (12), and the two sets of feed boxes (13) are fixedly connected to the lower end of the first collection hopper (22) and the crusher (24), respectively.

8. A cable outer insulation layer machine according to claim 1, characterized in that: The material conveying pipe (12) is internally connected to a spiral blade (14), and a first motor (15) is fixedly installed at the right end of the material conveying pipe (12). The output end of the first motor (15) is fixedly connected to the right end of the spiral blade (14).

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