A cable protection pipe manufacturing device

Abstract

This invention discloses a cable protection tube manufacturing device, belonging to the field of cable protection tube manufacturing technology. It includes an extruder, with a cooling assembly at the extrusion end. The cooling assembly includes a cooling tank, and a sizing sleeve rotated by a drive mechanism is located in the middle of the cooling tank. An extension tube is connected to one side of the sizing sleeve, and an annular water tank mounted on the sizing sleeve is located on the outer side of the extension tube. The sizing sleeve is equipped with a cooling mechanism and a negative pressure mechanism. The cooling mechanism includes several cooling channels located on the sizing sleeve and extending one end into the inner side of the annular water tank. By setting up the sizing sleeve, this invention allows the extruded protection tube to be adsorbed onto the inner wall of the sizing sleeve by the negative pressure mechanism during use, and then cooled by the cooling mechanism. This enables the protection tube to quickly stiffen, preventing collapse and ensuring roundness. The rotating sizing sleeve ensures separation of the protection tube from the sizing sleeve, and the sizing sleeve and extension tube can rotate synchronously, thereby improving cooling efficiency.

Description

Technical Field

[0001] This invention relates to a cable protection tube preparation device, belonging to the field of cable protection tube preparation technology. Background Technology

[0002] Cable protection pipes, also known as cable conduits, power cable conduits, cement cable conduits, power ducts, and power cable protection pipes, are characterized by high strength and low frictional resistance. They can be used for laying cables on roads of various grades. The low frictional resistance between the inner wall and the cable is the most prominent advantage of cable protection pipes.

[0003] Existing easy-insertion cable protection pipes are manufactured by extruding them using an extruder and then cooling them with a cooling device. Currently, the sizing sleeves of existing devices on the market are all fixed, resulting in low cooling efficiency during use, and the protection pipe is prone to sticking to the sizing sleeve.

[0004] Therefore, the present invention proposes a new solution. Summary of the Invention

[0005] The main objective of this invention is to address the shortcomings of existing technologies by providing a cable protection pipe preparation device.

[0006] The objective of this invention can be achieved by adopting the following technical solution:

[0007] A cable protection pipe manufacturing apparatus includes an extruder. The extruder's discharge end is equipped with a cooling assembly, which includes a cooling tank. A sizing sleeve, driven to rotate by a drive mechanism, is located in the center of the cooling tank. An extension tube is connected to one side of the sizing sleeve, and an annular water tank mounted on the sizing sleeve is located outside the extension tube. The sizing sleeve is equipped with a cooling mechanism and a negative pressure mechanism. The cooling mechanism includes several cooling channels located on the sizing sleeve and extending one end into the inner side of the annular water tank. The outer wall of the sizing sleeve is provided with cooling channels connected to the cooling sleeve. The cooling channel is connected to the water inlet pipe. The annular water tank has a drain hole at the end away from the sizing sleeve. An annular water pipe located outside the water inlet pipe and rotatably connected to the outer wall of the sizing sleeve is fixedly connected to the cooling tank. The negative pressure mechanism includes several air passages located on the sizing sleeve and extending to the inner side of the sizing sleeve at one end. An air intake pipe connected to several air passages is provided on the outer wall of the sizing sleeve. An annular air pipe located outside the air intake pipe and rotatably connected to the outer wall of the sizing sleeve is fixedly connected to the cooling tank.

[0008] Preferably, the cooling mechanism further includes a water pump installed outside the cooling tank, and the output end of the water pump is connected to a water outlet pipe that is interconnected with the annular water pipe.

[0009] Preferably, the negative pressure mechanism further includes a negative pressure pump installed outside the cooling box, and the air inlet of the negative pressure pump is connected to an air extraction pipe that is interconnected with the annular air pipe.

[0010] Preferably, the drive mechanism includes a motor, the output end of which is connected to a drive wheel, a driven wheel is fixedly connected to the outer wall of the sizing sleeve, and a transmission belt is installed between the drive wheel and the driven wheel.

[0011] Preferably, the bottom of the cooling box is provided with a support frame, the bottom of the legs of the support frame is equipped with casters, and the bottom of the support frame is provided with a guide rail.

[0012] Preferably, a plurality of partitions located on the outer wall of the annular water tank and rotatably connected to the middle of the cooling box are fixedly connected, an exhaust pipe located at the top of the cooling box is provided between two adjacent partitions, an air inlet pipe located at the bottom of the cooling box is provided between two adjacent partitions, and a fan connected to the air inlet pipe is provided at the bottom of the cooling box.

[0013] Preferably, a water cavity is formed between the partition located on the farthest side of the extruder and the cooling box, a drain pipe is connected to the outside of the water cavity, and one end of the annular water tank is located inside the water cavity.

[0014] Preferably, the end of the sizing sleeve near the extension tube is provided with a screw hole, and the end of the extension tube near the sizing sleeve is provided with an external thread that mates with the screw hole.

[0015] Preferably, the outer wall of the extension tube is provided with several sets of grooves evenly distributed.

[0016] Preferably, the sizing sleeve has a first flange at one end near the annular water tank, and the annular water tank has a second flange at one end near the sizing sleeve. The first flange and the second flange are connected by bolts, and the annular water tank is a transparent water tank.

[0017] The beneficial technical effects of the present invention are as follows: According to the cable protection tube preparation device of the present invention, by setting a sizing sleeve, during use, the protective tube extruded by the extruder is adsorbed onto the inner wall of the sizing sleeve by a negative pressure mechanism and cooled by a cooling mechanism, thereby enabling the protective tube to quickly stiffen and prevent the protective tube from collapsing to ensure roundness; by setting a rotating sizing sleeve, the protective tube can be separated from the sizing sleeve, and the sizing sleeve and the extension tube can rotate synchronously, thereby improving the cooling efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure according to a preferred embodiment of the present invention;

[0019] Figure 2This is a cross-sectional view of the overall structure according to a preferred embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of a cooling mechanism according to a preferred embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of a sizing sleeve structure according to a preferred embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of a cooling box structure according to a preferred embodiment of the present invention;

[0023] Figure 6 This is a cross-sectional view of a cooling box structure according to a preferred embodiment of the present invention.

[0024] In the diagram: 1. Extruder; 2. Cooling box; 3. Sizing sleeve; 4. Extension pipe; 5. Annular water tank; 6. Cooling channel; 7. Water inlet pipe; 8. Drain hole; 9. Annular water pipe; 10. Air passage; 11. Suction pipe; 12. Annular air pipe; 13. Water pump; 14. Water outlet pipe; 15. Negative pressure pump; 16. Suction pipe; 17. Motor; 18. Drive wheel; 19. Driven wheel; 20. Transmission belt; 21. Support frame; 22. Rotary wheel; 23. Guide rail; 24. Partition plate; 25. Exhaust pipe; 26. Air inlet pipe; 27. Fan; 28. Water chamber; 29. ​​Drain pipe; 30. Screw hole; 31. External thread; 32. Groove; 33. First flange; 34. Second flange. Detailed Implementation

[0025] To enable those skilled in the art to understand the technical solution of the present invention more clearly, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0026] like Figures 1-6As shown, the cable protection pipe manufacturing apparatus provided in this embodiment includes an extruder 1. The discharge end of the extruder 1 is equipped with a cooling assembly, which includes a cooling tank 2. A sizing sleeve 3, driven to rotate by a driving mechanism, is located in the middle of the cooling tank 2. An extension pipe 4 is connected to one side of the sizing sleeve 3. An annular water tank 5, mounted on the sizing sleeve 3, is located outside the extension pipe 4. The sizing sleeve 3 is equipped with a cooling mechanism and a negative pressure mechanism. The cooling mechanism includes several cooling channels 6 located on the sizing sleeve 3 and extending one end into the inner side of the annular water tank 5. The outer wall of the sizing sleeve 3 is provided with several cooling channels 6. A water inlet pipe 7 is connected to a cooling channel 6. A drain hole 8 is provided at the end of the annular water tank 5 away from the sizing sleeve 3. An annular water pipe 9 is fixedly connected to the cooling tank 2, located outside the water inlet pipe 7 and rotatably connected to the outer wall of the sizing sleeve 3. The negative pressure mechanism includes several air passages 10 located on the sizing sleeve 3 and extending to the inner side of the sizing sleeve 3 at one end. An air intake pipe 11 connected to the several air passages 10 is provided on the outer wall of the sizing sleeve 3. An annular air pipe 12 is fixedly connected to the cooling tank 2, located outside the air intake pipe 11 and rotatably connected to the outer wall of the sizing sleeve 3. By setting the sizing sleeve 3, during use, the protective tube extruded by the extruder 1 is adsorbed onto the inner wall of the sizing sleeve 3 by the negative pressure mechanism and cooled by the cooling mechanism, thereby enabling the protective tube to quickly stiffen and prevent the protective tube from collapsing to ensure roundness. By setting the rotating sizing sleeve 3, it is possible to ensure that the protective tube is separated from the sizing sleeve 3, and the sizing sleeve 3 and the extension pipe 4 can rotate synchronously, thereby improving the cooling efficiency.

[0027] In an optional embodiment, the cooling mechanism further includes a water pump 13 installed outside the cooling tank 2, with the output end of the water pump 13 connected to an outlet pipe 14 that is interconnected with the annular water pipe 9. The negative pressure mechanism further includes a negative pressure pump 15 installed outside the cooling tank 2, with the air inlet end of the negative pressure pump 15 connected to an exhaust pipe 16 that is interconnected with the annular air pipe 12. By setting up the water pump 13 and the outlet pipe 14, cooling water can be input for cooling; by setting up the negative pressure pump 15 and the exhaust pipe 16, negative pressure can be formed inside the sizing sleeve 3 by exhausting air, thereby preventing the protective pipe from collapsing.

[0028] In an optional embodiment, the drive mechanism includes a motor 17, the output end of which is connected to a drive wheel 18, and a driven wheel 19 is fixedly connected to the outer wall of the sizing sleeve 3. A transmission belt 20 is installed between the drive wheel 18 and the driven wheel 19. By configuring the motor 17, drive wheel 18, driven wheel 19, and transmission belt 20, the sizing sleeve 3 can be driven to rotate.

[0029] In an optional embodiment, the bottom of the cooling box 2 is provided with a support frame 21, the bottom of the legs of the support frame 21 is equipped with a rotating wheel 22, and a guide rail 23 is provided below the support frame 21. By setting the rotating wheel 22 and the guide rail 23, it is easy to push the entire cooling box 2, thereby facilitating the introduction of the extruded protective tube into the sizing sleeve 3.

[0030] In an optional embodiment, a plurality of partitions 24 are fixedly connected to the middle of the cooling box 2, located on the outer wall of the annular water tank 5 and rotatably connected to the annular water tank 5. An exhaust pipe 25 located at the top of the cooling box 2 is provided between two adjacent partitions 24, and an air inlet pipe 26 located at the bottom of the cooling box 2 is provided between two adjacent partitions 24. A fan 27 connected to the air inlet pipe 26 is provided at the bottom of the cooling box 2. By setting up the partitions 24, exhaust pipes 25, air inlet pipes 26 and fan 27, the whole unit can be air-cooled, thereby further improving the cooling efficiency.

[0031] In an optional embodiment, a water cavity 28 is formed between the partition 24 located on the farthest side of the extruder 1 and the cooling tank 2. A drain pipe 29 is connected to the outside of the water cavity 28, and one end of the annular water tank 5 is located inside the water cavity 28. The water cavity 28 and the drain pipe 29 are provided to collect and discharge cooling water that has absorbed superheat.

[0032] In an optional embodiment, the sizing sleeve 3 has a screw hole 30 at one end near the extension tube 4, and the extension tube 4 has an external thread 31 that mates with the screw hole 30 at one end near the sizing sleeve 3. Several sets of grooves 32 are evenly distributed on the outer wall of the extension tube 4. The screw hole 30 and external thread 31 facilitate installation and removal, and the grooves 32 allow cooling water to enter the extension tube 4, forming a water film on the surface of the protective tube, further improving cooling efficiency.

[0033] In an optional embodiment, a first flange 33 is provided at one end of the sizing sleeve 3 near the annular water tank 5, and a second flange 34 is provided at one end of the annular water tank 5 near the sizing sleeve 3. The first flange 33 and the second flange 34 are connected by bolts, and the annular water tank 5 is a transparent water tank. By providing the first flange 33 and the second flange 34 and connecting them by bolts, it is easy to install and remove the equipment. The annular water tank 5 is transparent, making it easy to observe the contents.

[0034] In this embodiment, as Figures 1-6 As shown, the working process of the cable protection pipe preparation device provided in this embodiment is as follows:

[0035] Step 1: Place the formed protective tube inside the sizing sleeve 3 and the extension tube 4, so that one end of it extends out of the sizing sleeve 3. Attach one end of the protective tube extruded by the extruder 1 to the protective tube. Pull out the formed protective tube through the external traction mechanism, and then drive the extruded protective tube into the sizing sleeve 3.

[0036] Step 2: Start the motor 17 to drive the sizing sleeve 3 to rotate via the transmission belt 20. The negative pressure pump 15 and the air extraction pipe 16 draw air to form a negative pressure inside the sizing sleeve 3, thereby preventing the protective tube from collapsing. Cooling water is introduced through the water pump 13 and the water outlet pipe 14 to cool the sizing sleeve 3, thereby initially cooling the protective tube. Then, the cooling water enters the annular water tank 5 to cool the extension pipe 4, thereby further cooling the protective tube.

[0037] Step 3: Then, the cooling water enters the water chamber 28 through the drain hole 8 and is discharged through the drain pipe 29.

[0038] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cable protection pipe manufacturing apparatus, comprising an extruder (1), characterized in that, The extruder (1) has a cooling assembly at its discharge end, which includes a cooling box (2). A sizing sleeve (3) driven to rotate by a drive mechanism is located in the middle of the cooling box (2). An extension pipe (4) is connected to one side of the sizing sleeve (3). An annular water tank (5) mounted on the sizing sleeve (3) is located on the outer side of the extension pipe (4). The sizing sleeve (3) has a cooling mechanism and a negative pressure mechanism. The cooling mechanism includes several cooling channels (6) located on the sizing sleeve (3) and extending one end to the inner side of the annular water tank (5). A water inlet pipe (7) communicating with several cooling channels (6) is located on the outer wall of the sizing sleeve (3). The annular water tank (5) has a drain hole (8) at one end away from the sizing sleeve (3). The cooling tank (2) is fixedly connected to an annular water pipe (9) located outside the water inlet pipe (7) and rotatably connected to the outer wall of the sizing sleeve (3). The negative pressure mechanism includes several air passages (10) located on the sizing sleeve (3) and extending to the inner side of the sizing sleeve (3) at one end. The outer wall of the sizing sleeve (3) is provided with an air intake pipe (11) communicating with several air passages (10). The cooling tank (2) is fixedly connected to an annular air pipe (12) located outside the air intake pipe (11) and rotatably connected to the outer wall of the sizing sleeve (3).

2. The cable protection pipe preparation device according to claim 1, characterized in that, The cooling mechanism also includes a water pump (13) installed outside the cooling box (2), and the output end of the water pump (13) is connected to a water outlet pipe (14) that is connected to the annular water pipe (9).

3. The cable protection pipe preparation device according to claim 1, characterized in that, The negative pressure mechanism also includes a negative pressure pump (15) installed outside the cooling box (2), and the air inlet of the negative pressure pump (15) is connected to an air extraction pipe (16) that is connected to the annular air pipe (12).

4. The cable protection pipe preparation device according to claim 1, characterized in that, The drive mechanism includes a motor (17), the output end of which is connected to a drive wheel (18), a driven wheel (19) is fixedly connected to the outer wall of the sizing sleeve (3), and a transmission belt (20) is installed between the drive wheel (18) and the driven wheel (19).

5. The cable protection pipe preparation apparatus according to claim 1, characterized in that, The bottom of the cooling box (2) is provided with a support frame (21), the bottom of the legs of the support frame (21) is equipped with a rotating wheel (22), and a guide rail (23) is provided below the support frame (21).

6. The cable protection pipe preparation apparatus according to claim 1, characterized in that, The cooling box (2) is fixedly connected to a number of partitions (24) located on the outer wall of the annular water tank (5) and rotatably connected to the annular water tank (5). An exhaust pipe (25) located at the top of the cooling box (2) is provided between two adjacent partitions (24), and an air inlet pipe (26) located at the bottom of the cooling box (2) is provided between two adjacent partitions (24). A fan (27) connected to the air inlet pipe (26) is provided below the cooling box (2).

7. The cable protection pipe preparation apparatus according to claim 6, characterized in that, A water cavity (28) is formed between the partition (24) located on the farthest side of the extruder (1) and the cooling box (2). A drain pipe (29) is connected to the outside of the water cavity (28). One end of the annular water tank (5) is located inside the water cavity (28).

8. The cable protection pipe preparation apparatus according to claim 1, characterized in that, The sizing sleeve (3) has a screw hole (30) at one end near the extension tube (4), and the extension tube (4) has an external thread (31) that mates with the screw hole (30) at one end near the sizing sleeve (3).

9. The cable protection pipe preparation device according to claim 1, characterized in that, Several sets of grooves (32) are evenly opened on the outer wall of the extension tube (4).

10. The cable protection pipe preparation apparatus according to claim 1, characterized in that, The sizing sleeve (3) has a first flange (33) at one end near the annular water tank (5), and the annular water tank (5) has a second flange (34) at one end near the sizing sleeve (3). The first flange (33) and the second flange (34) are connected by bolts. The annular water tank (5) is a transparent water tank.

Images