Traction device for extrusion molding of plastic pipeline

Abstract

The traction device for extrusion molding of the plastic pipeline comprises a rack, a traction mechanism and a rubber roller driving mechanism, the traction mechanism comprises a left inclined plate and a right inclined plate which are oppositely supported, and first rubber rollers are rotationally connected to the opposite sides of the left inclined plate and the right inclined plate at intervals; the bottoms of the front sides and the rear sides of the left inclined plate and the right inclined plate are rotationally connected with the rack, driving devices are arranged on the back faces of the left inclined plate and the right inclined plate, the number of the driving devices is two, and the driving devices are located on the front sides and the rear sides of the back faces of the left inclined plate and the right inclined plate. Comprising a first fixing base, a connecting rod, a second fixing base, a sliding base, an I-shaped sliding groove and a first electric push rod. A first electric push rod drives a sliding base to move in an I-shaped sliding groove and drives a connecting rod to rotate, then the inclination angle of a left inclined plate and a right inclined plate is adjusted, the distance between first rubber rollers is adjustable, traction can be conducted according to plastic pipelines with different diameters, and the application range of the device is widened.

Description

Technical Field

[0001] This utility model relates to the field of traction devices, and in particular to a traction device made by extruding plastic pipes. Background Technology

[0002] In the production of plastic pipes, an extruder is typically used for extrusion molding, followed by cooling and shaping using a cooler. After cooling, the rear end of the plastic pipe needs to be pulled backward by a traction device. While existing traction devices can pull the plastic pipe, they also have shortcomings. For example, a traction device for extruding plastic pipes (patent number: CN213198713U) includes: a frame with four upward-protruding columns at its upper corners; a plastic pipe extending forward and backward, located on the left and right center lines of the frame and rotatably supported on a rolling support device; and two left... The track traction mechanism on the right includes a drive wheel, a driven wheel, and multiple clamping wheels that are axially vertically and rotatably mounted on a support plate. The support plate extends forward and backward and is inclined to the horizontal plane. The drive wheel and the driven wheel face each other forward and backward. The multiple clamping wheels are evenly spaced forward and backward and located on the side of the line connecting the drive wheel and the driven wheel that is biased towards the plastic tube. The track is stretched on the drive wheel, the driven wheel, and the multiple clamping wheels. A connecting seat is fixed at each of the front and rear ends of the side of the support plate away from the track. The upper end of the connecting seat is hinged to the upper end of the corresponding column through a first connecting rod, and the lower end of the connecting seat is hinged to the proximal end of the upper end of the corresponding column through a second connecting rod.

[0003] The traction device cannot pull plastic pipes of different diameters, resulting in a limited range of applications.

[0004] In addition, the traction device uses tracks and rubber rollers to pull the plastic pipe backward, which can easily cause the plastic pipe to deform and affect its subsequent use.

[0005] Therefore, there is room for improvement. Utility Model Content

[0006] The purpose of this invention is to provide a traction device for extruding plastic pipes to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A traction device for extruding plastic pipes includes a frame, a traction mechanism, and a rubber roller drive mechanism. The traction mechanism includes a left inclined plate and a right inclined plate that support each other. A first rubber roller is rotatably connected to the opposite side of the left and right inclined plates. The bottom of the front and rear sides of the left and right inclined plates are rotatably connected to the frame. A drive device is provided on the back of the left and right inclined plates. There are two drive devices located on the front and rear sides of the back of the left and right inclined plates, including a first fixed seat, a connecting rod, a second fixed seat, a slide, an I-shaped slide groove, and a first electric push rod.

[0009] The first fixed seat is fixedly connected to the back of the left and right inclined plates. The first fixed seat is rotatably connected to one end of the connecting rod, which is inclined. The other end of the connecting rod is rotatably connected to the second fixed seat. The second fixed seat is fixedly connected to the slide block. The slide block is adapted to the I-shaped slide groove fixedly on the frame below. The slide block has integrally formed ears on both sides. There are two first electric push rods, which are fixedly connected to the frame. Their telescopic ends are respectively fixedly connected to the ears on both sides of the slide block.

[0010] The rubber roller drive mechanism comprises multiple components, spaced apart and positioned directly above the midpoint between the left and right inclined plates. It includes a second electric push rod, a first guide rod, a second guide rod, a moving plate, a U-shaped plate, and a second rubber roller. The second electric push rod is fixedly connected to the lower top of the frame, and its telescopic end is fixedly connected to the moving plate. Two first guide rods are fixedly connected to the upper sides of the moving plate, with their upper ends movably passing through the top of the frame. The U-shaped plate is located below the moving plate. Two second guide rods are fixedly connected to the upper sides of the U-shaped plate, with their upper ends movably passing through the moving plate.

[0011] A compression spring is sleeved on the second guide rod. The lower end of the compression spring is fixed to the upper end face of the U-shaped plate, and its upper end is fixed to the lower end face of the moving plate.

[0012] The second rubber roller is rotatably connected inside the U-shaped plate, with one end connected to the bearing of the U-shaped plate and the other end fixedly connected to the output end of the drive motor through a coupling.

[0013] The number of the rubber roller drive structures can be set according to the actual needs.

[0014] The beneficial effects of this utility model are:

[0015] Wide range of applications: The first electric push rod drives the slide block to move in the I-shaped slide groove, which drives the connecting rod to rotate, thereby adjusting the tilt angle of the left and right tilt plates. This makes the spacing of the first rubber roller adjustable, which can be used to pull plastic pipes of different diameters, thus expanding the practical range of the device.

[0016] Reduce pipe deformation: A second rubber roller works in conjunction with the first rubber roller to pull the plastic pipe. The second rubber roller moves up and down and provides elastic buffering through a structure including a second electric push rod, a first guide rod, a second guide rod, and a compression spring, avoiding excessive compression of the plastic pipe, reducing the risk of deformation during the pulling process, and ensuring the quality of subsequent use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is the right view of the present invention.

[0019] Figure 3 For the present utility model Figure 1 An enlarged diagram of A in the diagram.

[0020] Among them, 1-frame; 2-traction mechanism; 3-rubber roller drive mechanism; 4-left inclined plate; 5-right inclined plate; 6-first rubber roller; 7-drive device; 8-first fixed seat; 9-connecting rod; 10-second fixed seat; 11-slide seat; 12-I-shaped slide groove; 13-first electric push rod; 14-ear; 15-second electric push rod; 16-first guide rod; 17-second guide rod; 18-moving plate; 19-U-shaped plate; 20-second rubber roller; 21-compression spring; 22-drive motor. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0022] A traction device for extruding plastic pipes includes a frame 1, a traction mechanism 2, and a rubber roller drive mechanism 3. The traction mechanism 2 includes a left inclined plate 4 and a right inclined plate 5 that support each other. A first rubber roller 6 is rotatably connected to the opposite side of the left inclined plate 4 and the right inclined plate 5. The bottom of the front and rear sides of the left inclined plate 4 and the right inclined plate 5 are rotatably connected to the frame 1. A drive device 7 is provided on the back of the left inclined plate 4 and the right inclined plate 5. There are two drive devices 7, located on the front and rear sides of the back of the left inclined plate 4 and the right inclined plate 5. The drive devices 7 include a first fixed seat 8, a connecting rod 9, a second fixed seat 10, a slide 11, an I-shaped slide 12, and a first electric push rod 13.

[0023] The first fixed seat 8 is fixedly connected to the back of the left inclined plate 4 and the right inclined plate 5. The first fixed seat 8 is rotatably connected to one end of the connecting rod 9, which is inclined. The other end of the connecting rod 9 is rotatably connected to the second fixed seat 10. The second fixed seat 10 is fixedly connected to the slide 11. The slide 11 is adapted to the I-shaped slide groove 12 fixedly connected to the frame 1 below. The slide 11 has integrally formed ears 14 on both sides. The first electric push rod 13 has two parts, which are fixedly connected to the frame 1. Its telescopic ends are fixedly connected to the ears 14 on both sides of the slide 11 respectively.

[0024] Multiple rubber roller drive mechanisms 3 are provided, spaced apart at the front and rear positions directly above the midpoint of the left inclined plate 4 and the right inclined plate 5. These mechanisms include a second electric push rod 15, a first guide rod 16, a second guide rod 17, a moving plate 18, a U-shaped plate 19, and a second rubber roller 20. The second electric push rod 15 is fixedly connected to the lower top of the frame 1, and its telescopic end is fixedly connected to the moving plate 18. Two first guide rods 16 are provided, fixedly connected to the upper sides of the moving plate 18, with their upper ends movably passing through the top of the frame 1. The U-shaped plate 19 is located below the moving plate 18. Two second guide rods 17 are provided, fixedly connected to the upper sides of the U-shaped plate 19, with their upper ends movably passing through the moving plate 18.

[0025] A compression spring 21 is sleeved on the second guide rod 17. The lower end of the compression spring 21 is fixed to the upper end face of the U-shaped plate 19, and its upper end is fixed to the lower end face of the moving plate 18.

[0026] The second rubber roller 20 is rotatably connected inside the U-shaped plate 19. One end of it is connected to the bearing of the U-shaped plate 19, and the other end is fixedly connected to the output end of the drive motor 22 through a coupling.

[0027] The number of rubber roller drive structures 3 can be set according to the actual needs.

[0028] The embodiment of this utility model: In the traction device, the left inclined plate 4 and the right inclined plate 5 are rotatably connected to the frame 1, and a driving device 7 is provided on their back sides. The driving device 7 includes a first fixed seat 8, a connecting rod 9, a second fixed seat 10, a slide 11, an I-shaped slide groove 12, and a first electric push rod 13. The first fixed seat 8 is fixed to the back sides of the left inclined plate 4 and the right inclined plate 5, and is rotatably connected to one end of the connecting rod 9. The other end of the connecting rod 9 is rotatably connected to the second fixed seat 10. The second fixed seat 10 is fixedly connected to the slide 11, and the slide 11 is adapted to the I-shaped slide groove 12. The telescopic end of the first electric push rod 13 is fixedly connected to the ears 14 on both sides of the slide 11. When the first electric push rod 13 telescopically extends or retracts, it drives the slide 11 to move within the I-shaped slide groove 12, thereby causing the connecting rod 9 to tilt and change the tilt angle of the left inclined plate 4 and the right inclined plate 5, so as to realize the adjustable spacing of the first rubber roller 6 to adapt to the traction of plastic pipes of different diameters and expand the application range of the device.

[0029] The rubber roller drive mechanism 3 includes a second electric push rod 15, a first guide rod 16, a second guide rod 17, a moving plate 18, a U-shaped plate 19, and a second rubber roller 20. The second electric push rod 15 is fixedly connected to the lower top of the frame 1, with its telescopic end fixedly connected to the moving plate 18. The first guide rod 16 is fixedly connected to both sides above the moving plate 18, with its upper end movably passing through the top of the frame 1. The U-shaped plate 19 is located below the moving plate 18. The second guide rod 17 is fixedly connected to both sides above the U-shaped plate 19, with its upper end movably passing through the moving plate 18. A compression spring 21 is sleeved on the second guide rod 17, with its upper and lower ends fixedly connected to the upper surface of the U-shaped plate 19 and the lower surface of the moving plate 18, respectively. The second rubber roller 20 is rotatably connected inside the U-shaped plate 19, with one end connected to a bearing on the U-shaped plate 19 and the other end fixedly connected to the output end of the drive motor 22 via a coupling. When the second electric push rod 15 pushes the moving plate 18 to move, the U-shaped plate 19 moves up and down and is elastically buffered by the compression spring 21, so as to avoid the second rubber roller 20 from excessively squeezing the plastic pipe 23, reduce the risk of pipe deformation, and ensure the quality of subsequent use.

[0030] When the traction device for extruding the plastic pipe 23 is in operation, firstly, based on the diameter of the plastic pipe, the tilt angles of the left tilting plate 4 and the right tilting plate 5 are adjusted by the first electric push rod 13 to make the spacing of the first rubber roller 6 match the pipe and limit the plastic pipe 23. Then, the second electric push rod 15 pushes the moving plate 18, causing the second rubber roller 20 on the U-shaped plate 19 to move closer to the pipe, and the compression spring 21 provides elastic cushioning. The drive motor 22 drives the second rubber roller 20 to rotate, cooperating with the first rubber roller 6 to traction the plastic pipe. At the same time, the number of rubber roller drive mechanisms 3 can be set according to actual needs to meet different production requirements and ensure efficient and stable operation of the device.

[0031] 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A traction device for extruding plastic pipes, characterized in that, The device includes a frame, a traction mechanism, and a rubber roller drive mechanism. The traction mechanism includes a left inclined plate and a right inclined plate that support each other. A first rubber roller is rotatably connected to the opposite side of the left and right inclined plates. The bottom of the front and rear sides of the left and right inclined plates are rotatably connected to the frame. A drive device is provided on the back of the left and right inclined plates. There are two drive devices located on the front and rear sides of the back of the left and right inclined plates, including a first fixed seat, a connecting rod, a second fixed seat, a slide, an I-shaped slide groove, and a first electric push rod.

2. The traction device for extruding plastic pipes according to claim 1, characterized in that, The first fixed seat is fixedly connected to the back of the left and right inclined plates. The first fixed seat is rotatably connected to one end of the connecting rod, which is inclined. The other end of the connecting rod is rotatably connected to the second fixed seat. The second fixed seat is fixedly connected to the slide block. The slide block is adapted to the I-shaped slide groove fixedly on the frame below. The slide block has integrally formed ears on both sides. There are two first electric push rods, which are fixedly connected to the frame. Their telescopic ends are respectively fixedly connected to the ears on both sides of the slide block.

3. The traction device for extruding plastic pipes according to claim 1, characterized in that, The rubber roller drive mechanism comprises multiple components, spaced apart and positioned directly above the midpoint between the left and right inclined plates. It includes a second electric push rod, a first guide rod, a second guide rod, a moving plate, a U-shaped plate, and a second rubber roller. The second electric push rod is fixedly connected to the lower top of the frame, and its telescopic end is fixedly connected to the moving plate. Two first guide rods are fixedly connected to the upper sides of the moving plate, with their upper ends movably passing through the top of the frame. The U-shaped plate is located below the moving plate. Two second guide rods are fixedly connected to the upper sides of the U-shaped plate, with their upper ends movably passing through the moving plate.

4. The traction device for extruding plastic pipes according to claim 3, characterized in that, A compression spring is sleeved on the second guide rod. The lower end of the compression spring is fixed to the upper end face of the U-shaped plate, and its upper end is fixed to the lower end face of the moving plate.

5. The traction device for extruding plastic pipes according to claim 3, characterized in that, The second rubber roller is rotatably connected inside the U-shaped plate, with one end connected to the bearing of the U-shaped plate and the other end fixedly connected to the output end of the drive motor through a coupling.

6. The traction device for extruding plastic pipes according to claim 1, characterized in that, The number of the rubber roller drive structures can be set according to the actual needs.

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