Automatic turning machine for double threads of plastic pipe

Abstract

The utility model relates to an automatic turning machine for double threads of a plastic pipe, which comprises a machine frame with a working platform, a casing string is arranged in the working platform, a driving device for driving the casing string to rotate is arranged on the machine frame, the casing string is of a hollow structure, and the working platform is provided with a turning device. An expansion device capable of expanding towards the outer wall of the casing string and expanding a pipe fitting arranged on the casing string in a sleeving manner is arranged in the casing string; a pipe supporting plate is further arranged at the bottom of the casing string, the casing string is movably sleeved with the pipe supporting plate, and an air cylinder used for lifting the pipe supporting plate is arranged on the working platform; the working platform is further provided with an upper cutter used for cutting the upper end of the pipe fitting and a lower cutter used for cutting the lower end of the pipe fitting, and the working platform is provided with an upper moving assembly used for adjusting the position of the upper cutter and a lower moving assembly used for adjusting the position of the lower cutter. The whole working process is controlled in a full-automatic mode, operation is easy and convenient, precision is high, consumed time is short, and production efficiency and product quality are improved.

Description

Technical field

[0001] The utility model relates to the technical field of production equipment for plastic pipe fittings, in particular to an automatic turning machine for double-start threads of plastic pipes. [Background Technology]

[0002] A plastic pipe is made up of multiple plastic pipe monomers connected together. One end of a plastic pipe monomer is a spigot section, and the other end is a socket section. The spigot section of a plastic pipe monomer is inserted into the socket section of another plastic pipe monomer, and so on to connect several plastic pipe monomers into a plastic pipe.

[0003] The two ends of existing plastic pipes are mostly processed by traditional lathes. Due to the influence of fixed length and different structures at both ends, when using traditional lathes for processing, the plastic pipe is generally hoisted onto the lathe, clamped, the end is first flattened and the thread is processed, and then one end is removed after completion. The pipe is turned and pulled again, and then the thread of the other end is processed. The production efficiency is low. When processing plastic pipes of different lengths and diameters, it takes a lot of time to repeatedly clamp and adjust the position, which also affects production efficiency and makes adjustment more difficult. [Utility Model Content]

[0004] In order to solve the above problems, the purpose of the utility model is to provide a plastic pipe double-start thread automatic turning machine which can simultaneously process the socket section and the spigot section at both ends of the plastic pipe.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a double-start thread automatic turning machine for plastic pipes, comprising a frame with a working platform, a casing string is provided in the working platform, a driving device for driving the casing string to rotate is provided on the frame, the casing string is a hollow structure, and a tightening device is provided therein, which can expand toward the outer wall of the casing string and tighten the pipe fittings sleeved on the casing string; a hosting plate is also provided at the bottom of the casing string, the hosting plate can be movably sleeved on the casing string, and a cylinder for lifting the hosting plate is provided on the working platform; an upper cutter for cutting the upper end of the pipe fitting and a lower cutter for cutting the lower end of the pipe fitting are also provided on the working platform, and an upper movable component for adjusting the position of the upper cutter and a lower movable component for adjusting the position of the lower cutter are provided on the working platform.

[0006] The plastic pipe double-head thread automatic turning machine in the present invention is further configured as follows: the expansion device includes a lifting and contracting rod arranged inside the casing column, and a lifting and contracting cylinder for driving the lifting and contracting rod to move up and down is provided on the frame, and a plurality of expansion components are arranged from top to bottom on the outer wall of the casing column, each group of expansion components includes a plurality of small expansion parts, and the plurality of small expansion parts are evenly distributed along the circumferential direction of the casing column, and each small expansion part includes a slide and a slider arranged in the slide, the inner end face of the slider is an inclined surface that gradually inclines inward from bottom to top, and the outer end of the slider is an arc-shaped surface that matches the inner wall of the pipe fitting, and a cone is respectively provided on the lifting and contracting rod corresponding to the position of each group of expansion components, and the inclined surface of the slider fits with the surface of the cone.

[0007] The plastic pipe double-head thread automatic turning machine in the present invention is further configured as follows: the structures of the upper moving component and the lower moving component are consistent, including a bracket arranged on the working platform, a vertical slide is arranged on the bracket, a vertical slider is arranged on the vertical slide, a vertical motor is arranged on the bracket for driving the vertical slider to move along the vertical slide through a screw structure, a horizontal slide is arranged on the vertical slider, a horizontal slider is arranged on the horizontal slide, and a horizontal motor is arranged on the horizontal slider for determining the movement of the horizontal slider along the horizontal slide through a screw structure, and the upper cutter is arranged at the front end of the horizontal slider.

[0008] The automatic turning machine for double-start thread cutting of plastic pipes in the utility model is further configured as follows: the driving device comprises a motor arranged on a frame, and the output shaft of the motor is connected to the lower end of the casing column through a belt linkage structure.

[0009] Compared with the existing technology, the utility model has the following beneficial effects: the above-mentioned plastic pipe double-head thread automatic turning machine realizes the expansion and fixation of the pipe fittings through the casing column, and then cuts the socket section and the spigot section of the upper and lower ends of the pipe fittings through the upper cutter and the lower cutter. The entire working process is fully automatically controlled, which is not only easy to operate, but also has high precision and short time consumption, thereby improving production efficiency and product quality.

Brief Description of the Drawings

[0010] Figure 1 It is a structural diagram of the present utility model.

[0011] Figure 2 It is a side structural schematic diagram of the utility model.

[0012] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0013] Figure 4 It is a structural schematic diagram of the casing string in the utility model.

[0014] Figure 5 It is a schematic diagram of the top view of the casing string in the utility model.

[0015] In the figure: 1. working platform, 2. frame, 3. casing column, 4. motor, 5. hosting plate, 6. cylinder, 7. pipe fitting, 8. upper cutter, 9. lower cutter, 10. lifting and retracting rod, 11. lifting and retracting cylinder, 12. slide, 13. slider, 14. cone, 15. bracket, 16. vertical slide, 17. vertical slider, 18. vertical motor, 19. horizontal slide, 20. horizontal slider, 21. horizontal motor. [Specific implementation method]

[0016] The following is a further detailed description of the automatic turning machine for double-start threads of plastic pipes according to the present invention through specific embodiments.

[0017] like Figures 1 to 5 As shown, the automatic turning machine for double-start threading of plastic pipes comprises a frame 2 with a work platform 1. A casing string 3 is mounted on the work platform 1. A drive mechanism for rotating the casing string 3 is provided on the frame 2. The drive mechanism includes a motor 4 mounted on the frame 2, the output shaft of the motor 4 being connected to the lower end of the casing string 3 via a belt linkage. The casing string 3 is a hollow structure, within which is located an expansion device capable of expanding toward the outer wall of the casing string 3 and tightening the pipe fittings mounted thereon. A supporting plate 5 is also provided at the bottom of the casing string 3, which is movably mounted on the casing string 3. A cylinder 6 is provided on the work platform 1 for raising the supporting plate 5. The work platform 1 also comprises an upper cutter 8 for cutting the upper end of the pipe fitting 7 and a lower cutter 9 for cutting the lower end of the pipe fitting 7. The work platform 1 also comprises an upper movable assembly for adjusting the position of the upper cutter 8 and a lower movable assembly for adjusting the position of the lower cutter 9.

[0018] As a preferred embodiment, the expansion device includes a lifting and contracting rod 10 arranged inside the casing column 3, and a lifting and contracting cylinder 11 is provided on the frame 2 for driving the lifting and contracting rod 10 to move up and down. On the outer wall of the casing column 3, multiple groups of expansion components are arranged from top to bottom, and each group of expansion components includes multiple expansion small parts. The multiple expansion small parts are evenly distributed along the circumferential direction of the casing column 3. Each expansion small part includes a slide 12 and a slider 13 arranged in the slide 12. The inner end face of the slider 13 is an inclined surface that gradually inclines inward from bottom to top, and the outer end of the slider 13 is an arc-shaped surface that matches the inner wall of the pipe fitting 7. The position of each group of expansion components on the lifting and contracting rod 10 is respectively provided with a cone 14, and the inclined surface of the slider 13 fits the surface of the cone 14.

[0019] As a preferred solution, the structures of the upper moving component and the lower moving component are consistent, including a bracket 15 arranged on the working platform 1, a vertical slide 16 is arranged on the bracket 15, a vertical slider 17 is arranged on the vertical slide 16, a vertical motor 18 is arranged on the bracket 15 for driving the vertical slider 17 to move along the vertical slide 16 through a screw structure, a horizontal slide 19 is arranged on the vertical slider 17, a horizontal slider 20 is arranged on the horizontal slide 19, and a horizontal motor 21 is provided on the horizontal slider 20 for determining the movement of the horizontal slider 20 along the horizontal slide 19 through a screw structure, and the upper cutter 8 is arranged at the front end of the horizontal slider 20.

[0020] The working principle of this utility model is as follows: During operation, the pipe fitting 7 is inserted into the casing string 3. At this point, the lower end of the pipe fitting 7 is located on the supporting plate 5. Then, the cylinder 6 is activated, causing the supporting plate 5 to rise a certain distance, thereby lifting the pipe fitting 7 to the desired position. The expansion device in the casing string 3 then begins to operate. The operation process is as follows: the lifting and contraction cylinder 11 drives the lifting and contraction rod 10 upward. The tapered body 14 on the lifting and contraction rod 10 cooperates with the inclined surface of the slider 13, driving the slider 13 in each expansion component to gradually slide outward along the slide 12 until it contacts the inner wall of the pipe fitting 7, thereby tightening the pipe fitting 7 to the casing string 3. The supporting plate 5 then moves downward to the bottom under the action of the cylinder 6. Next, the upper and lower moving assemblies move the upper and lower cutters 8 and 9 to their proper cutting positions for the pipe 7. As the motor 4 drives the casing string 3 and pipe 7 to rotate at high speed, the upper and lower cutters 8 and 9 complete the cutting of the socket and spigot sections at both ends of the pipe 7. The entire process is fully automated, offering ease of operation, high precision, and minimal processing time, improving production efficiency and product quality.

[0021] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some embodiments of its application, and are not intended to limit the present invention. It should be noted that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A double-threaded automatic turning machine for plastic pipes, comprising a frame with a working platform, characterized in that: A casing string is provided in the working platform, and a driving device for driving the casing string to rotate is provided on the frame. The casing string is a hollow structure, and an expansion device is provided therein, which can expand toward the outer wall of the casing string and tighten the pipe fittings sleeved on the casing string; a hosting plate is also provided at the bottom of the casing string, and the hosting plate can be movably sleeved on the casing string, and a cylinder for lifting the hosting plate is provided on the working platform; an upper cutter for cutting the upper end of the pipe fitting and a lower cutter for cutting the lower end of the pipe fitting are also provided on the working platform, and an upper moving component for adjusting the position of the upper cutter and a lower moving component for adjusting the position of the lower cutter are provided on the working platform.

2. The automatic turning machine for double-start thread cutting of plastic pipes according to claim 1, characterized in that: The expansion device includes a lifting and contracting rod arranged inside the casing column, and a lifting and contracting cylinder for driving the lifting and contracting rod to move up and down is provided on the frame. On the outer wall of the casing column, multiple groups of expansion components are arranged from top to bottom, and each group of expansion components includes multiple small expansion parts. The multiple small expansion parts are evenly distributed along the circumferential direction of the casing column. Each small expansion part includes a slide and a slider arranged in the slide. The inner end face of the slider is an inclined surface that gradually inclines inward from bottom to top, and the outer end of the slider is an arc-shaped surface that matches the inner wall of the pipe fitting. The position of each group of expansion components on the lifting and contracting rod is respectively provided with a cone, and the inclined surface of the slider fits with the surface of the cone.

3. The automatic turning machine for double-start thread cutting of plastic pipes according to claim 1 or 2, characterized in that: The structures of the upper moving assembly and the lower moving assembly are consistent, including a bracket arranged on the working platform, a vertical slide arranged on the bracket, a vertical slider arranged on the vertical slide, a vertical motor arranged on the bracket for driving the vertical slider to move along the vertical slide through a screw structure, a horizontal slide arranged on the vertical slider, a horizontal slider arranged on the horizontal slide, and a horizontal motor arranged on the horizontal slider for determining the movement of the horizontal slider along the horizontal slide through a screw structure, and the upper cutter is arranged at the front end of the horizontal slider.

4. The automatic turning machine for double-start thread cutting of plastic pipes according to claim 1 or 2, characterized in that: The driving device comprises a motor arranged on a frame, and an output shaft of the motor is connected to the lower end of the casing string through a belt linkage structure.

Images