A guide device for a pipe winding machine

Abstract

The utility model relates to the field of pipe production, more particularly, a kind of guiding device of pipe winding machine, including fixed base, upper fixed plate, lower fixed plate and two guide wheels, both ends in guide wheel axial direction are provided with wheel shaft, wheel shaft is rotatably connected with guide wheel, the wheel shaft of the both ends of guide wheel is connected with upper fixed plate and lower fixed plate respectively, lower fixed plate is rotatably connected with fixed base, the axis of two guide wheels is perpendicular to horizontal plane, and the guide material mouth for pipe is enclosed between two guide wheels. Lower fixed plate and fixed base are rotatably connected, so the guide material direction of guide material mouth also changes along with the arrangement direction of pipe, so that pipe can be regularly laid, effectively avoids the common irregular motion phenomenon of pipe in traditional winding process, significantly reduces the appearance of pipe folding phenomenon, reduces the scrap rate, reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of pipe manufacturing, and more specifically, to a guiding device for a pipe winding machine. Background Technology

[0002] PP-R pipes are often processed into coils during production, a form that offers significant transportation advantages compared to traditional straight pipes. Firstly, in terms of loading efficiency, the spiral coil structure fully utilizes the space within the transport vehicle. Actual calculations show that under the same load conditions, coiled pipes can carry approximately 30-40% more cargo than straight pipes. This not only increases the amount of goods transported per trip but also significantly reduces the logistics cost per unit.

[0003] Secondly, in terms of transportation safety, the coiled structure exhibits superior pressure resistance. Its curved geometry effectively disperses external pressure, especially during long-distance transportation, where this structural characteristic better resists the effects of vibration, impact, and other external forces. In contrast, straight pipes are prone to collisions during transportation due to insecure fixing or external impacts, resulting in scratches or deformation of the pipe surface. The flexible structure of the coil allows it to undergo a certain degree of elastic deformation when subjected to external forces, thereby reducing the risk of permanent damage.

[0004] During the production of PP-R coils, when changing coils, the coiled coils are removed and new coils are installed at the workstation. During this process, the extruder continues to discharge material, and excess pipes accumulate on the ground, resulting in pipe stacking. Due to the high extrusion speed, the pipes exhibit irregular movement during stacking, swinging erratically from side to side. They cannot be laid flat between layers, and they cross and entangle with each other. After changing coils, the accumulated pipes are re-coiled and wound up. Because of the irregular arrangement of the pipes, knot-like situations occur, with the pipes obstructing each other. Under tensile stress, this can lead to pipe breakage. Due to the high flexural modulus of polypropylene (PP-R), pipe breakage results in scrap, significantly increasing production costs. Utility Model Content

[0005] The purpose of this invention is to overcome the problem of easy pipe kinking during the reel changing process of existing pipe winding machines, and to provide a guiding device for pipe winding machines that reduces pipe kinking and lowers the scrap rate.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A guiding device for a pipe winding machine is provided, comprising a fixed base, an upper fixed plate, a lower fixed plate, and two guide wheels. Each guide wheel has an axle at both ends along its axial direction, and the axle is rotatably connected to the guide wheel. The axles at both ends of the guide wheel are respectively connected to the upper fixed plate and the lower fixed plate. The lower fixed plate is rotatably connected to the fixed base. The axes of the two guide wheels are perpendicular to the horizontal plane, and the two guide wheels form a guide port for the pipe to pass through.

[0008] This utility model discloses a guiding device for a pipe winding machine. In actual production, after the pipe is extruded from the extruder, it first passes through a guide port composed of two guide rollers. Under external traction, the pipe feeds forward, causing the two guide rollers to rotate synchronously. The two guide rollers provide stable guidance for the pipe, ensuring it smoothly enters the winding machine for winding. During reel changing operations, when a wound reel is removed and a new empty reel is not yet installed, the extruder continues to operate, and the pipe will stack. Upon contact with the ground, the pipe will tilt to one side and lay flat on the ground. At this time, the pipe will tilt and exert a pushing force on one of the guide rollers, causing the lower fixed plate to rotate relative to the fixed base, and the guide port will... The guide port angle constantly changes with the angle of the pipe's laying, tilting towards the side where the pipe is tilted. When the guide port tilts to its limit angle, the pipe's laying direction changes, tilting to the other side, and the guide port also turns to the other side, its trajectory approximating an S-shape. When the pipe reaches its limit forward, it returns to the S-shape, repeating this process layer by layer. The overall arrangement of the pipes approximates a figure-eight shape, making the arrangement more orderly. This dynamic adjustment mechanism allows the pipes to be arranged in an orderly manner according to the preset S-shaped trajectory, achieving layer-by-layer laying. This effectively avoids the irregular movement of the pipes commonly seen in traditional winding processes, significantly reduces the occurrence of pipe folding, lowers the scrap rate, reduces production costs, and has high economic benefits.

[0009] Furthermore, both the upper and lower fixed plates are provided with sliding grooves, and the wheel axle is slidably connected to the sliding grooves and fixed by a locking member. The distance between the two guide wheels can be changed by sliding the wheel axle, so that the guide port can adapt to pipes of different diameters. The locking member can lock the position of the wheel axle to prevent slippage.

[0010] Furthermore, both the upper and lower fixing plates have two sliding grooves arranged side by side. This arrangement, with one groove corresponding to each wheel axle, facilitates adjustment and positioning, preventing displacement of the material guide opening.

[0011] Furthermore, the locking element is threadedly connected to the wheel axle. Because the locking element is threadedly connected to the wheel axle, loosening the locking element allows the guide wheel to move, while tightening it locks it in place. This operation is convenient and allows for quick adjustment.

[0012] Furthermore, the outer periphery of the guide wheel is provided with an inwardly recessed guide wheel groove. Since the pipe is cylindrical, the guide wheel groove provides more support points compared to a cylindrical guide wheel, making the pipe more stable in the axial direction and reducing axial offset.

[0013] Furthermore, the guide wheel groove is an arc-shaped groove recessed towards the center of the guide wheel axis. The arc-shaped groove fits the outer surface of the pipe better, and the transition of the arc-shaped groove is smooth without obvious sharp edges, which can protect the outer surface of the pipe from scratches.

[0014] Furthermore, the fixed base includes a connector, two parallel horizontal support plates, and a support plate fixed to the top of the two horizontal support plates. One axial end of the connector is rotatably connected to the support plate, and the other end is rotatably connected to the lower fixed plate. The horizontal support plates are used to fix the device to the frame, ensuring stability. The two axial ends of the connector are rotatably connected to the support plate and the lower fixed plate, respectively. When the lower fixed plate rotates, the connector is simultaneously driven to rotate, improving rotational sensitivity.

[0015] Furthermore, the connector is connected to the fixed plate via a bearing at one end, and to the support plate via a bearing at the other end. The distance between the connector and the fixed plate is not less than 1 mm, and the distance between the connector and the support plate is not less than 1 mm. Bearings are provided at both ends of the connector in the axial direction for higher sensitivity. A certain distance is maintained between the connector and the support plate and the lower fixed plate to prevent the connector from jamming.

[0016] Furthermore, a vertical support plate is provided at the bottom of the horizontal support plate near the other horizontal support plate. The vertical support plate is perpendicular to the horizontal support plate, and the two vertical support plates are parallel to each other. The vertical support plate provides multi-directional fixation, making the guiding device more stable.

[0017] Furthermore, the guide wheel is made of nylon. Nylon is a soft and elastic material that is less likely to scratch the surface of the tubing when in contact with it, ensuring a smooth finished product appearance and reducing the defect rate.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The lower fixed plate and the fixed base are rotatably connected, so the guiding direction of the guide port will also change with the arrangement direction of the pipe, so that the pipe can be laid flat in a regular manner, effectively avoiding the irregular movement of the pipe that is common in the traditional winding process, significantly reducing the occurrence of pipe bending, reducing the scrap rate, and reducing production costs.

[0020] 2. The chute is designed so that the distance between the two guide wheels can be changed by sliding the wheel shaft, allowing the guide port to adapt to pipe fittings of different diameters. The locking component can lock the position of the wheel shaft to prevent slippage.

[0021] 3. The outer circumference of the guide wheel is provided with an inwardly recessed guide wheel groove, and the guide wheel groove is an arc-shaped groove; the design of the guide wheel groove provides more support points compared to the cylindrical guide wheel, making the pipe more stable in the axial direction and reducing axial offset. The arc-shaped groove fits the outer surface of the pipe better, and the arc-shaped groove has a smooth transition without obvious sharp corners, which can protect the outer surface of the pipe from scratches.

[0022] 4. The vertical support plate provides multi-directional fixation, making the guide device more stable. Attached Figure Description

[0023] Figure 1 A first-view structural schematic diagram of a guide device for a pipe winding machine;

[0024] Figure 2 This is a second-view structural schematic diagram of a guide device for a pipe winding machine;

[0025] Figure 3 This is a third-view structural schematic diagram of a guide device for a pipe winding machine.

[0026] In the attached diagram: 100, fixed base; 110, connector; 120, horizontal support plate; 130, support plate; 140, vertical support plate; 200, upper fixed plate; 210, slide groove; 300, lower fixed plate; 400, guide wheel; 410, wheel axle; 420, guide wheel groove; 500, guide port; 600, locking component. Detailed Implementation

[0027] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0028] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] Example 1

[0030] A guiding device for a pipe winding machine, such as Figure 1 and Figure 2 As shown, the system includes a fixed base 100, an upper fixed plate 200, a lower fixed plate 300, and two guide wheels 400. Each guide wheel 400 has an axle 410 at both ends in the axial direction. The axle 410 is connected to the guide wheel 400 via bearings. Both the upper fixed plate 200 and the lower fixed plate 300 have two parallel sliding grooves 210. The axle 410 is slidably connected to the sliding groove 210 and fixed by a locking member 600. In this embodiment, the locking member 600 is a nut, and it is threadedly connected to the axle 410. Alternatively, the locking member 600 can be a screw, bolt, etc. The lower fixed plate 300 is rotatably connected to the fixed base 100. The axes of the two guide wheels 400 are perpendicular to the horizontal plane, and the two guide wheels 400 together form a guide port 500 for the pipe to pass through.

[0031] The working principle of this embodiment is as follows:

[0032] This utility model discloses a guiding device for a pipe winding machine. In actual production, after the pipe is extruded from the extruder, it first passes through a guide port 500 composed of two guide rollers 400. The two guide rollers 400 rotate synchronously under power drive, providing stable traction for the pipe and ensuring its smooth entry into the winding machine for winding. During the reel changing operation, when the wound reel is removed and a new empty reel is not yet installed, the extruder continues to operate, and the pipe will be stacked. After touching the ground, the pipe will tilt to one side and lay flat on the ground. At this time, the pipe will tilt and exert a pushing force on one of the guide rollers 400, causing the lower fixed plate 300 to rotate relative to the fixed base 100, and the guide port 500 to deflect towards... On the side where the pipe is tilted, the angle of the guide port 500 constantly changes with the angle of the pipe being laid flat. When the guide port 500 tilts to the limit angle on that side, the laying direction of the pipe will change, tilting to the other side. The direction of the guide port 500 will also turn to the other side, and its trajectory is approximately S-shaped. When the pipe reaches its limit forward, it will return to the S-shaped motion. This process is repeated layer by layer, and the overall arrangement of the pipe is approximately figure-eight, making the arrangement more orderly. This dynamic adjustment mechanism allows the pipe to be arranged in an orderly manner according to the preset S-shaped trajectory, achieving layer by layer laying. This effectively avoids the irregular movement of the pipe that is common in traditional winding processes, significantly reduces the occurrence of pipe folding, lowers the scrap rate, reduces production costs, and has high economic benefits.

[0033] The beneficial effects of this embodiment are as follows:

[0034] The lower fixed plate 300 and the fixed base 100 are rotatably connected, so the guiding direction of the guide port 500 will also change with the arrangement direction of the pipes, so that the pipes can be laid flat in a regular manner, avoiding irregular movement of the pipes, reducing pipe bending, reducing the scrap rate and production cost. The distance between the two guide wheels 400 can be changed by the sliding wheel shaft 410, so that the guide port 500 can adapt to pipes of different diameters. The locking part 600 can lock the position of the wheel shaft 410 to prevent slippage. The setting of two sliding grooves 210, with each wheel shaft 410 corresponding to one sliding groove 210, makes it easier to adjust and position, and prevents the position of the guide port 500 from shifting.

[0035] In addition, the upper fixed plate 200 and the lower fixed plate 300 can each be provided with only one slide groove 210, and the two wheel axles 410 can be slidably connected to one slide groove 210 at the same time. However, this setting makes it inconvenient to adjust the position of the guide port 500.

[0036] Example 2

[0037] This embodiment is a second embodiment of a guiding device for a pipe winding machine. This embodiment is similar to the first embodiment, except that, as Figure 1 and Figure 2 As shown, the outer periphery of the guide wheel 400 is provided with an inwardly recessed guide wheel groove 420. The guide wheel groove 420 is an arc-shaped groove recessed at the center of the axis of the guide wheel 400. In addition, the guide wheel groove 420 can also be a square groove, a V-shaped groove, etc. The material of the guide wheel 400 is nylon.

[0038] The working principle of this embodiment is as follows:

[0039] Because the pipe is cylindrical, the 400 groove design of the guide wheel provides more support points compared to a cylindrical guide wheel, making the pipe more stable axially and reducing axial offset. The arc groove fits the outer surface of the pipe better, and the transition of the arc groove is smooth without obvious sharp edges, which can protect the outer surface of the pipe from scratches. The nylon material is soft and elastic, and it is not easy to scratch the surface when in contact with the pipe, ensuring a smooth appearance of the finished product and reducing the defect rate.

[0040] The remaining working principles of this embodiment are the same as those of Embodiment 1.

[0041] Example 3

[0042] This embodiment is a third embodiment of a guiding device for a pipe winding machine. This embodiment is similar to embodiment two, except that, as Figure 1 and Figure 3 As shown, the fixed base 100 includes a connector 110, two parallel horizontal support plates 120, two parallel vertical support plates 140, and a support plate 130 fixed to the top of the two horizontal support plates 120. The support plate 130 and the horizontal support plates 120 are connected by bolts. One end of the connector 110 is connected to the support plate 130 via a bearing, and the other end is connected to the lower fixed plate 300 via a bearing. The distance between the connector 110 and the fixed plate is 1mm, and the distance between the connector 110 and the support plate 130 is 1mm. The vertical support plate 140 is located at the bottom of the horizontal support plate 120 near the other horizontal support plate 120. The vertical support plate 140 and the horizontal support plate 120 are integrally formed, and the vertical support plate 140 is perpendicular to the horizontal support plate 120.

[0043] The working principle of this embodiment is as follows:

[0044] The horizontal support plate 120 is used to fix it on the frame, so that the guide device can maintain stability. The two ends of the connector 110 in the axial direction are respectively rotatably connected to the support plate 130 and the lower fixed plate 300. When the lower fixed plate 300 rotates, the connector 110 can be driven to rotate at the same time, which improves the rotation sensitivity. Both ends of the connector 110 in the axial direction are equipped with bearings, which further enhances the sensitivity. A 1mm distance is left between the connector 110 and the support plate 130 and the lower fixed plate 300 to prevent the connector 110 from getting stuck. The vertical support plate 140 can provide multi-directional fixation, making the guide device more stable.

[0045] The remaining working principles of this embodiment are the same as those of Embodiment 2.

[0046] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A guiding device for a pipe winding machine, characterized in that, The device includes a fixed base (100), an upper fixed plate (200), a lower fixed plate (300), and two guide wheels (400). Each guide wheel (400) has an axle (410) at both ends in the axial direction. The axle (410) is rotatably connected to the guide wheel (400). The axles (410) at both ends of the guide wheel (400) are respectively connected to the upper fixed plate (200) and the lower fixed plate (300). The lower fixed plate (300) is rotatably connected to the fixed base (100). The axes of the two guide wheels (400) are perpendicular to the horizontal plane. The two guide wheels (400) form a guide port (500) for the pipe to pass through.

2. The guiding device for a pipe winding machine according to claim 1, characterized in that, Both the upper fixing plate (200) and the lower fixing plate (300) are provided with sliding grooves (210), and the wheel axle (410) is slidably connected to the sliding grooves (210) and fixed by locking members (600).

3. The guiding device for a pipe winding machine according to claim 2, characterized in that, Both the upper fixing plate (200) and the lower fixing plate (300) have two sliding grooves (210), and the two sliding grooves (210) are arranged side by side.

4. The guiding device for a pipe winding machine according to claim 2, characterized in that, The locking element (600) is threadedly connected to the axle (410).

5. The guiding device for a pipe winding machine according to claim 1, characterized in that, The outer periphery of the guide wheel (400) is provided with an inwardly recessed guide wheel groove (420).

6. The guiding device for a pipe winding machine according to claim 5, characterized in that, The guide wheel groove (420) is an arc-shaped groove recessed towards the center of the axis of the guide wheel (400).

7. The guiding device for a pipe winding machine according to claim 1, characterized in that, The fixed base (100) includes a connector (110), two parallel horizontal support plates (120) and a support plate (130) fixed to the top of the two horizontal support plates (120). One end of the connector (110) is rotatably connected to the support plate (130) in the axial direction, and the other end is rotatably connected to the lower fixed plate (300).

8. The guiding device for a pipe winding machine according to claim 7, characterized in that, The connector (110) is connected to the lower fixing plate (300) by a bearing, and the other end is connected to the support plate (130) by a bearing. The distance between the connector (110) and the lower fixing plate (300) is not less than 1 mm, and the distance between the connector (110) and the support plate (130) is not less than 1 mm.

9. The guiding device for a pipe winding machine according to claim 7, characterized in that, A vertical support plate (140) is provided on the bottom side of the horizontal support plate (120) near the other horizontal support plate (120). The vertical support plate (140) is perpendicular to the horizontal support plate (120), and the two vertical support plates (140) are parallel to each other.

10. A guiding device for a pipe winding machine according to any one of claims 1-9, characterized in that, The guide wheel (400) is made of nylon.

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