Guiding connection for a traction tube

Abstract

This utility model discloses a guiding and connecting device for a traction pipe, including a connecting assembly for connecting a wire rope to the traction pipe. The connecting assembly includes a lead screw, a rope connecting part, a first seat, a second seat, multiple spreading rods, supporting connecting rods corresponding to the spreading rods, and locking blocks corresponding to the spreading rods. One of the first seat and the second seat is threadedly connected to the lead screw, and the other of the first seat and the second seat is rotatably connected to the lead screw. The spreading rods and the supporting connecting rods are distributed circumferentially around the lead screw. One end of each spreading rod is hinged to the first seat, and the corresponding locking block is rotatably connected to the other end of the spreading rod. This utility model enables the wire rope to be connected to the traction pipe, preventing the wire rope from protruding from the outer cylindrical wall of the traction pipe, thereby preventing the wire rope from scraping and colliding with the equipment, which could cause damage.

Description

Technical Field

[0001] This utility model relates to a guiding connection device for a traction pipe. Background Technology

[0002] Currently, in the initial stage of pipe extrusion production lines, the finished pipe is guided into a traction machine using a traction tube. Specifically, the freshly extruded pipe is semi-molten and viscous. It is adhered to one end of the traction tube and pinched tightly. The other end of the traction tube extends into the traction machine, which then guides the pipe into the machine by pulling the traction tube. The pipe has already cooled and hardened upon entering the traction machine, allowing it to move directly. However, in some pipe extrusion production lines, the distance between the die and the traction machine is long, making the traction tube too short for the required length. One existing solution is to extend the traction tube. For example, Chinese patents CN214662705U and CN201979684U both use a method of splicing multiple traction tubes together to extend the tube's length. However, when producing some large finished pipes, the distance from the mold to the traction machine can be as long as 50m. If the traction pipe is spliced ​​and extended to more than 50m, the traction pipe will be huge in size and heavy in weight. On the one hand, this will make the production operation very difficult, and on the other hand, it will lead to huge procurement costs for the traction pipe.

[0003] Therefore, when producing large finished pipes, the industry often chooses an alternative solution involving a winch and traction pipe. This involves attaching the freshly extruded pipe to the traction pipe, connecting the wire rope in the winch to the traction pipe, and using the winch to wind up the wire rope to move the traction pipe, thus guiding the finished pipe into the traction machine. This solution requires only a few meters of traction pipe, significantly reducing its length. However, connecting the wire rope to the traction pipe is a problematic issue. Existing methods involve machining a rope-passing hole in the traction pipe wall, through which the wire rope passes and is secured. However, this causes the wire rope to protrude from the outer cylindrical wall of the traction pipe, making it susceptible to scratching and bumping against equipment in the pipe extrusion production line, potentially damaging the equipment. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a guiding connection device for a traction pipe. It can connect the wire rope to the traction pipe and prevent the wire rope from protruding from the outer cylindrical wall of the traction pipe, thereby preventing the wire rope from scratching and bumping against the equipment and causing damage to the equipment.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a guiding connection device for a traction pipe, including a connecting component for connecting a wire rope to a traction pipe, the connecting component including a lead screw, a rope connecting part, a first seat, a second seat, a plurality of spreading rods, a support connecting rod corresponding to the spreading rod, and a locking block corresponding to the spreading rod;

[0006] One of the first seat body and the second seat body is threadedly connected to the lead screw.

[0007] The other of the first and second seats is rotatably connected to the lead screw;

[0008] The spreading rod and the supporting connecting rod are distributed sequentially around the lead screw along the circumference;

[0009] One end of the spreading rod is hinged to the first base body, and the other end of the spreading rod is rotatably connected to the corresponding locking block;

[0010] One end of the support link is hinged to the second base body, and the other end of the support link is hinged to the corresponding expansion rod;

[0011] The lead screw is used to rotate to drive the second seat body to move toward the first seat body, thereby driving the spreading rod to spread outward through the support connecting rod, thereby driving the locking block to open outward and move to press against the inner wall of the traction tube. The locking block is used to lock the inner wall of the traction tube with fasteners after pressing against the inner wall of the traction tube.

[0012] The rope connector is attached to one end of the lead screw and is used to connect to the wire rope.

[0013] Furthermore, the first seat is threadedly connected to the lead screw, and the second seat is rotatably connected to the lead screw.

[0014] Furthermore, the connecting assembly also includes an anti-reverse nut, which is threaded onto the lead screw and used to be screwed to abut against the end face of the first seat facing away from the second seat.

[0015] Furthermore, the fastener is a fastening bolt, and the locking block is provided with a connecting through hole. The fastening bolt is used to pass through the connecting through hole and be threaded onto the traction tube to lock the locking block onto the inner wall of the traction tube. The length of the fastening bolt is sufficient to ensure that the fastening bolt does not protrude from the outer cylindrical tube wall of the traction tube.

[0016] Furthermore, a rotating handle is connected to the lead screw.

[0017] Furthermore, the rotary handle includes a central seat connected to the lead screw and a plurality of handles connected to the outer periphery of the central seat and distributed sequentially along the circumference.

[0018] Furthermore, the rope connection part is a pull ring.

[0019] Furthermore, the guiding connection device for the traction tube also includes a guiding component for connecting to the end of the traction tube and guiding the movement of the traction tube, wherein the outer wall of the guiding component is a tapered ramp surface that converges towards the center along the movement direction of the traction tube.

[0020] Furthermore, the guide component has an arc-shaped structure and is used to connect to the lower half of the end of the traction tube.

[0021] Furthermore, a specific structure of the guiding component is provided, the guiding component including a mounting plate, a guiding plate and a plurality of ribs;

[0022] Both the mounting plate and the guide plate are arc-shaped structures;

[0023] The mounting plate is provided with multiple bolt holes, and the mounting plate is used to be connected to the lower half of the end of the traction tube by mounting bolts;

[0024] One end of the guide plate is connected to the outer edge of the mounting plate, and the tapered ramp surface is provided on the outer surface of the guide plate;

[0025] The rib is located between the mounting plate and the guide plate, and the rib is connected to both the mounting plate and the guide plate.

[0026] The above technical solution involves placing the connecting assembly inside the traction tube. Rotating the lead screw moves the second seat towards the first seat, which in turn drives the supporting rod to expand outwards. This causes the locking block to open outwards and move until it presses against the inner wall of the traction tube. Fasteners then secure the locking block to the inner wall of the traction tube. The wire rope in the winch is then connected to the rope connection. When the winch winds up the wire rope, it pulls the connecting assembly, thus moving the traction tube. Therefore, the connecting assembly allows for quick and easy connection between the wire rope and the traction tube, preventing the wire rope from protruding from the outer cylindrical wall of the traction tube and thus avoiding damage caused by scraping or bumping the equipment. The locking block is rotatably connected to the expanding rod to ensure it fits snugly against the inner wall of the traction tube. Fasteners secure the locking block to the inner wall of the traction tube to prevent the connecting assembly from slipping off the traction tube midway. Attached Figure Description

[0027] Figure 1This is a left sectional view of the connecting component and guiding component of this utility model connected to the traction tube;

[0028] Figure 2 This is a front view of the connecting component and guiding component of this utility model connected to the traction tube;

[0029] Figure 3 This is a schematic diagram of the structure of the connecting component of this utility model;

[0030] Figure 4 This is a cross-sectional view of the connecting component of this utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the guide component of this utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the winch of this utility model when it drives the traction pipe to move;

[0033] Figure 7 This is a schematic diagram of a winch in a pipe extrusion production line that pulls and moves the traction pipe to the die.

[0034] Figure 8 This is a schematic diagram of the structure of a pipe extrusion production line where a winch drives the traction pipe and the finished pipe to move.

[0035] In the diagram: 1. Wire rope; 2. Traction pipe; 3. Connecting assembly; 4. Lead screw; 5. Rope connection part; 6. First seat; 7. Second seat; 8. Spreading rod; 9. Supporting connecting rod; 10. Locking block; 11. Anti-reverse nut; 12. Connecting through hole; 13. Rotating handle; 14. Center seat; 15. Handle; 16. Guide component; 17. Conical ramp; 18. Mounting plate; 19. Guide plate; 20. Rib plate; 21. Mold; 22. Winch; 23. Bracket; 24. Fixed pulley. Detailed Implementation

[0036] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0037] like Figures 1-6 As shown, a guiding connection device for a traction pipe includes a connecting assembly 3 for connecting a wire rope 1 to a traction pipe 2. The connecting assembly 3 includes a lead screw 4, a rope connecting part 5, a first seat 6, a second seat 7, a plurality of spreading rods 8, a support connecting rod 9 corresponding to the spreading rods 8, and a locking block 10 corresponding to the spreading rods 8.

[0038] One of the first seat 6 and the second seat 7 is threadedly connected to the lead screw 4;

[0039] The other of the first seat 6 and the second seat 7 is rotatably connected to the lead screw 4;

[0040] The spreading rod 8 and the supporting connecting rod 9 are distributed sequentially around the lead screw 4 in the circumferential direction;

[0041] One end of the spreading rod 8 is hinged to the first base 6, and the other end of the spreading rod 8 is rotatably connected to the corresponding locking block 10;

[0042] One end of the support rod 9 is hinged to the second base 7, and the other end of the support rod 9 is hinged to the corresponding spreading rod 8;

[0043] The lead screw 4 is used to rotate to drive the second seat 7 to move toward the first seat 6, thereby driving the spreading rod 8 to spread outward through the support connecting rod 9, thereby driving the locking block 10 to open outward and move to abut against the inner wall of the traction tube 2. The locking block 10 is used to lock the inner wall of the traction tube 2 with fasteners after abutting against the inner wall of the traction tube 2.

[0044] The rope connection part 5 is connected to one end of the lead screw 4 and is used to connect to the wire rope 1.

[0045] Specifically, the connecting component 3 is placed inside the traction tube 2. Then, the screw 4 is rotated, causing the second seat 7 to move towards the first seat 6. This, in turn, drives the supporting connecting rod 9 to push the spreading rod 8 outward, causing the locking block 10 to open outward and move to press against the inner wall of the traction tube 2. The locking block 10 is then locked to the inner wall of the traction tube 2 using fasteners. The wire rope 1 in the winch 22 is then connected to the rope connection part 5. When the winch 22 winds up the wire rope 1, it can pull the connecting component 3 to move, thereby moving the traction tube 2. Therefore, the connecting component 3 allows for quick and convenient connection between the wire rope 1 and the traction tube 2, preventing the wire rope 1 from protruding from the outer cylindrical wall of the traction tube 2, and thus preventing the wire rope 1 from scraping or colliding with the equipment, which could cause damage. The locking block 10 is rotatably connected to the spreading rod 8 to ensure that it fits against the inner wall of the traction tube 2. Fasteners are used to secure the locking block 10 to the inner wall of the traction tube 2 to prevent the connecting assembly 3 from slipping off the traction tube 2 midway. In this embodiment, the supporting rod 9 and the locking block 10 correspond one-to-one with the spreading rod 8, and there are three of each of the supporting rod 9, locking block 10, and spreading rod 8.

[0046] like Figure 1 , 3As shown in Figure 4, the first seat 6 is threadedly connected to the lead screw 4, and the second seat 7 is rotatably connected to the lead screw 4; wherein, the second seat 7 is rotatably connected to the lead screw 4 through a thrust bearing.

[0047] like Figure 1 , 3 As shown in Figure 4, the connecting assembly 3 may further include an anti-retraction nut 11, which is threaded onto the lead screw 4 and used to be screwed to abut against the end face of the first seat 6 facing away from the second seat 7. Specifically, when the lead screw 4 is rotated, it can drive the second seat 7 to move toward the first seat 6, thereby driving the spreading rod 8 to spread outward through the support connecting rod 9, and thus driving the locking block 10 to open outward and move to abut against the inner wall of the traction tube 2. After the locking block 10 abuts against the inner wall of the traction tube 2, the anti-retraction nut 11 is screwed to abut against the end face of the first seat 6 facing away from the second seat 7, thereby preventing the first seat 6 and the second seat 7 from moving away from each other and preventing the spreading rod 8 from closing inward, so as to ensure that the locking block 10 remains abut against the inner wall of the traction tube 2.

[0048] like Figure 1 , 3 As shown in Figure 4, the fastener can be a fastening bolt. The locking block 10 is provided with a connecting through hole 12. The fastening bolt is used to pass through the connecting through hole 12 and be threaded onto the traction pipe 2 to lock the locking block 10 onto the inner wall of the traction pipe 2. The length of the fastening bolt is sufficient to ensure that the fastening bolt does not protrude from the outer cylindrical wall of the traction pipe 2.

[0049] like Figure 1 , 3 As shown in Figure 4, a rotating handle 13 is connected to the lead screw 4. The rotating handle 13 may include a central seat 14 connected to the lead screw 4 and a plurality of handles 15 connected to the outer periphery of the central seat 14 and distributed in sequence along the circumference.

[0050] In this embodiment, the rope connection part 5 can be a pull ring.

[0051] like Figure 1 , 2As shown in Figures 5 and 6, the guiding connection device for the traction tube may further include a guiding component 16 for connecting to the end of the traction tube 2 and guiding the movement of the traction tube 2. The outer wall of the guiding component 16 is a tapered ramp surface 17 that converges towards the center along the movement direction of the traction tube 2. Specifically, since the end of the traction tube 2 is flat, the traction tube 2 often gets stuck in the tube extrusion production line when the wire rope 1 pulls the traction tube 2. In this embodiment, the tapered ramp surface 17 on the guiding component 16 can prevent the traction tube 2 from getting stuck when it moves, and the traction tube 2 can be pulled and moved smoothly.

[0052] like Figure 1 , 2 As shown in Figures 5 and 6, the guide component 16 has an arc-shaped structure and is used to connect to the lower half of the end of the traction tube 2. The guide component 16 may include a mounting plate 18, a guide plate 19, and a plurality of ribs 20.

[0053] Both the mounting plate 18 and the guide plate 19 are arc-shaped structures;

[0054] The mounting plate 18 is provided with a plurality of bolt holes, and the mounting plate 18 is used to be connected to the lower half of the end of the traction tube 2 by mounting bolts;

[0055] One end of the guide plate 19 is connected to the outer edge of the mounting plate 18, and the tapered ramp surface 17 is provided on the outer surface of the guide plate 19;

[0056] The rib plate 20 is located between the mounting plate 18 and the guide plate 19, and the rib plate 20 is connected to the mounting plate 18 and the guide plate 19 respectively.

[0057] In actual production, due to the large size and heavy weight of the traction pipe 2, it cannot be placed directly in front of the mold 21. Instead, a winch 22 and wire rope 1 are needed to pull the traction pipe 2 to the front of the mold 21. Figure 7 As shown, first place the traction tube 2 in Figure 7 On the rightmost bracket 23 of the pipe extrusion production line, the connecting assembly 3 is placed into the left end of the traction pipe 2 and fixed. The guide component 16 is installed on the left end of the traction pipe 2. Then, the wire rope 1 in the winch 22 is wound around the fixed pulley 24 on the mold 21, and the wire rope 1 is connected to the pull ring in the connecting assembly 3 at the left end of the traction pipe 2. Then, the winch 22 is started to wind up the wire rope 1, thereby pulling the traction pipe 2 to the left and moving it to the mold 21. Then, as follows... Figure 8As shown, after removing the connecting component 3 from the left end of the traction pipe 2, install it into the right end of the traction pipe 2 and fix it in place. Remove the guide component 16 from the left end of the traction pipe 2 and install it onto the right end of the traction pipe 2. After removing the wire rope 1 from the fixed pulley 24, connect the wire rope 1 to the pull ring in the connecting component 3 at the right end of the traction pipe 2. Then, stick the finished pipe material extruded from the mold 21 onto the left end of the traction pipe 2. Then, start the winch 22 to wind up the wire rope 1 and pull the traction pipe 2 to the right, thereby pulling the finished pipe material to the right.

[0058] In summary, the connecting assembly 3 is placed inside the traction tube 2. Then, rotating the lead screw 4 moves the second seat 7 towards the first seat 6, which in turn drives the supporting connecting rod 9 to extend the spreading rod 8 outwards. This causes the locking block 10 to open outwards and move until it presses against the inner wall of the traction tube 2. The locking block 10 is then locked to the inner wall of the traction tube 2 using fasteners. Finally, the wire rope 1 in the winch 22 is connected to the rope connection part 5. When the winch 22 winds up the wire rope 1, it can pull the connecting assembly 3 to move, thereby moving the traction tube 2. Therefore, the connecting assembly 3 allows for quick and convenient connection between the wire rope 1 and the traction tube 2, preventing the wire rope 1 from protruding from the outer cylindrical wall of the traction tube 2, and thus preventing the wire rope 1 from scraping or colliding with the equipment, which could cause damage. The locking block 10 is rotatably connected to the spreading rod 8 so that the locking block 10 can fit against the inner wall of the traction tube 2. The locking block 10 is locked to the inner wall of the traction tube 2 by fasteners to ensure that the connecting assembly 3 will not slip off the traction tube 2 midway.

[0059] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A guiding and connecting device for a traction pipe, characterized in that, It includes a connecting assembly (3) for connecting the wire rope (1) to the traction tube (2), the connecting assembly (3) including a lead screw (4), a rope connection part (5), a first seat (6), a second seat (7), a plurality of spreading rods (8), a support connecting rod (9) corresponding to the spreading rods (8), and a locking block (10) corresponding to the spreading rods (8). One of the first seat (6) and the second seat (7) is threadedly connected to the lead screw (4); The other of the first seat (6) and the second seat (7) is rotatably connected to the lead screw (4); The spreading rod (8) and the supporting connecting rod (9) are distributed sequentially along the circumference with the lead screw (4) as the center; One end of the spreading rod (8) is hinged to the first base (6), and the other end of the spreading rod (8) is rotatably connected to the corresponding locking block (10). One end of the support link (9) is hinged to the second seat (7), and the other end of the support link (9) is hinged to the corresponding expansion rod (8); The lead screw (4) is used to rotate to drive the second seat (7) to move toward the first seat (6), thereby driving the spreading rod (8) to spread outward through the support link (9), thereby driving the locking block (10) to open outward and move to abut against the inner wall of the traction tube (2). The locking block (10) is used to lock the inner wall of the traction tube (2) with fasteners after abutting against the inner wall of the traction tube (2). The rope connector (5) is connected to one end of the screw (4) and is used to connect to the wire rope (1).

2. The guiding and connecting device for a traction pipe according to claim 1, characterized in that, The first seat (6) is threadedly connected to the lead screw (4), and the second seat (7) is rotatably connected to the lead screw (4).

3. The guiding and connecting device for a traction pipe according to claim 2, characterized in that, The connecting assembly (3) also includes an anti-reverse nut (11), which is threaded onto the lead screw (4) and used to be screwed to abut against the end face of the first seat (6) facing away from the second seat (7).

4. The guiding and connecting device for a traction pipe according to claim 1, characterized in that, The fastener is a fastening bolt. The locking block (10) is provided with a connecting through hole (12). The fastening bolt is used to pass through the connecting through hole (12) and be threaded onto the traction pipe (2) to lock the locking block (10) onto the inner wall of the traction pipe (2). The length of the fastening bolt is such that the fastening bolt does not protrude from the outer cylindrical wall of the traction pipe (2).

5. The guiding and connecting device for a traction pipe according to claim 1, characterized in that, A rotating handle (13) is connected to the lead screw (4).

6. The guiding and connecting device for a traction pipe according to claim 5, characterized in that, The rotary handle (13) includes a central seat (14) connected to the lead screw (4) and a plurality of handles (15) connected to the outer periphery of the central seat (14) and distributed in sequence along the circumference.

7. The guiding connection device for a traction pipe according to claim 1, characterized in that, The rope connection part (5) is a pull ring.

8. The guiding connection device for a traction pipe according to claim 1, characterized in that, It also includes a guide member (16) for connecting to the end of the traction tube (2) and guiding the movement of the traction tube (2), the outer wall of the guide member (16) being a conical ramp surface (17) that converges towards the center along the movement direction of the traction tube (2).

9. The guiding and connecting device for a traction pipe according to claim 8, characterized in that, The guide component (16) has an arc-shaped structure and is used to connect to the lower half of the end of the traction tube (2).

10. The guiding connection device for a traction pipe according to claim 9, characterized in that, The guide component (16) includes a mounting plate (18), a guide plate (19), and a plurality of ribs (20). Both the mounting plate (18) and the guide plate (19) are arc-shaped structures; The mounting plate (18) is provided with a plurality of bolt holes, and the mounting plate (18) is used to be connected to the lower half of the end of the traction tube (2) by mounting bolts; One end of the guide plate (19) is connected to the outer edge of the mounting plate (18), and the tapered ramp surface (17) is provided on the outer surface of the guide plate (19); The rib (20) is located between the mounting plate (18) and the guide plate (19), and the rib (20) is connected to the mounting plate (18) and the guide plate (19) respectively.

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