Plastic-lined pipe head cutting device

Abstract

The invention provides a plastic-lined pipe head cutting device which comprises a pipeline steering transmission assembly, a pipeline conveying assembly, a pipe end detection assembly and plastic-lined pipe rotary cutting assemblies, the pipeline steering transmission assembly is located at one end of the pipeline conveying assembly, and the two sides of the pipeline conveying assembly are each provided with one plastic-lined pipe rotary cutting assembly; and each plastic-lined pipe rotary cutting assembly is provided with one pipe end detection assembly. According to the head cutting device for the plastic-lined pipe, the advancing direction of the plastic-lined pipe is steered through the pipeline steering transmission assembly, the plastic-lined pipe is unloaded to the pipeline conveying assembly, the plastic-lined pipe is positioned and conveyed to the plastic-lined pipe rotary cutting assembly through the pipeline conveying assembly, and the pipe end position of the plastic-lined pipe is detected through the pipe end detection assembly; according to the plastic-lined pipe rotary cutting device, the redundant part of the pipe end of the plastic-lined pipe can be automatically positioned and cut off, the working efficiency and the quality are stable, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The present invention belongs to the field of production of plastic-lined pipes, and particularly relates to a cutting device for the heads of plastic-lined pipes. Background Art

[0002] The plastic-lined pipe is based on a common carbon steel pipe and lined with a thermoplastic plastic with excellent chemical properties. It is formed by cold drawing composite or rotational molding. It has both the mechanical properties of a steel pipe and the corrosion resistance of a plastic pipe, with the characteristics of slow scale formation and not easily growing microorganisms. It is an ideal pipe for transporting media such as acids, alkalis, salts, and corrosive gases. As Figure 14 shown, in the prior art, a production form of a plastic-lined pipe is to place the plastic inner lining 61 inside the steel pipe 62, and then through blowing and high-temperature treatment, the inner lining 61 is made to fit the inner wall of the steel pipe 62. And for the convenience of processing, the length of the inner lining 61 is greater than the length of the steel pipe 62. After processing, both ends of the inner lining 61 will protrude from the ends of the steel pipe 62. And at this time, the steel pipe 62 still has the remaining temperature of the thermoplastic, and it needs to be placed for cooling before manual cutting, which has low cutting efficiency and high labor intensity. Summary of the Invention

[0003] In view of this, the present invention aims to provide a cutting device for the heads of plastic-lined pipes to solve the problems in the prior art that when producing plastic-lined pipes, the plastic material at the pipe ends needs to be manually cut, with low working efficiency, uncontrollable production quality, and high working intensity.

[0004] To achieve the above object, the technical solution of the present invention is realized as follows: A cutting device for the heads of plastic-lined pipes includes a pipeline steering and transmission assembly, a pipeline conveying assembly, a pipe end detection assembly, and a plastic-lined pipe rotary cutting assembly. The pipeline steering and transmission assembly is located at one end of the pipeline conveying assembly, and a plastic-lined pipe rotary cutting assembly is arranged on each side of the pipeline conveying assembly. Each plastic-lined pipe rotary cutting assembly is equipped with a pipe end detection assembly. The pipe end detection assembly is used to detect the pipe ends of the plastic-lined pipes to be cut, and the pipe ends are cut by the plastic-lined pipe rotary cutting assembly. And a pipeline lifting assembly is arranged between the two plastic-lined pipe rotary cutting assemblies. The pipeline lifting assembly is used to position the relative positions of the plastic-lined pipes to be cut.

[0005] Further, the pipeline steering and transmission assembly includes a first bracket, transmission rollers, and steering plates. A plurality of transmission rollers are axially installed on the first bracket. The plastic-lined pipes to be cut that slide linearly can slide on the transmission rollers. A plurality of steering plates are arranged below the first bracket. The plurality of steering plates are arranged in parallel with each other, and each steering plate is perpendicular to the transmission rollers. Each steering plate is located between two adjacent transmission rollers. The lower end of each steering plate is fixedly installed on the first support plate, and the lower end of the first support plate is fixedly installed on the moving end of the first linear module. The first linear module is fixedly installed on the base.

[0006] Further, an adaptor ring groove is provided in the middle of each driving roller, and a guiding landslide is provided at the upper end of each steering plate.

[0007] Further, a plurality of blocking plates are provided on one side of the first bracket, and the plurality of blocking plates are arranged in parallel. The cross-section of each blocking plate is an L-shaped structure. The steering plate is used to guide the plastic-lined pipe to be cut from the driving roller into the blocking plate, and a first sensor is installed on the first bracket or the blocking plate. The first sensor is used to detect the position of the plastic-lined pipe to be cut on the blocking plate.

[0008] Further, the pipe conveying assembly includes two sets of conveying line bodies, and the two sets of conveying line bodies are arranged in parallel. The two sets of conveying line bodies are synchronously driven by a driving shaft. Each conveying line body includes a first sprocket, a second sprocket, a first chain and a supporting block. The first sprocket is located on one side of the blocking plate. The periphery of the first chain does not contact the periphery of the plastic-lined pipe to be cut. The periphery of the first sprocket is synchronously driven with the second sprocket through the first chain. The inner ring of the first sprocket is fixedly sleeved on the periphery of the driving shaft, and the inner ring of the second sprocket is fixedly sleeved on the periphery of the driven shaft. The driving shaft and the driven shaft are respectively rotatably sleeved on the base. A plurality of supporting blocks are installed along the circumference of the first chain. The supporting blocks are used to lift and support the periphery of the plastic-lined pipe to be cut.

[0009] Further, a V-shaped groove is provided at the upper end of the supporting block. The periphery of the plastic-lined pipe to be cut abuts against the V-shaped groove. The lower end of the supporting block is fixedly installed on the chain through a supporting shaft.

[0010] Further, the pipe lifting assembly includes a supporting base. Two supporting rollers are rotatably arranged in the supporting base, and the two supporting rollers are arranged in parallel. A second sensor is provided on the supporting base, and a second linear module is installed at the lower end of the supporting base.

[0011] Further, a plurality of first support rods are installed at the lower end of the supporting base. The movable end of the second linear module is installed with a second support plate. A plurality of sliding sleeves are installed on the second support plate. A first support rod is slidably arranged in the inner ring of each sliding sleeve. A first spring is provided at the lower end of the first support rod. The first spring is located in the sliding sleeve, and the lower end of the first spring is fixedly connected to the second support plate.

[0012] Further, the plastic-lined pipe rotary cutting assembly includes a driving base, a cutting assembly and a clamping assembly. The cutting assembly and the clamping assembly are respectively fixedly installed on the driving base, and the driving base can drive the cutting assembly and the clamping assembly to slide in two directions. The inner ring of the clamping assembly can clamp the periphery of the plastic-lined pipe to be cut, and a power unit is provided on one side of the clamping assembly. The power unit can drive the plastic-lined pipe to be cut to rotate relative to the cutting assembly. The execution end of the cutting assembly can cut the pipe end of the plastic-lined pipe.

[0013] Further, the clamping assembly includes a first base fixedly mounted on the transmission base. A support ring is sleeved inside the first base, and a plugging ring is fixedly arranged inside the support ring. A third linear module is fixedly arranged on the periphery of the plugging ring. A hoop is arranged inside the plugging ring. A first sliding hole and a second sliding hole are respectively arranged on the side wall of the plugging ring. The movable end of the third linear module passes through the first sliding hole and is fixedly mounted on the periphery of the hoop. A guide rod is arranged on the periphery of the hoop, and the periphery of the guide rod is slidably connected to the second sliding hole; Further, two hoops are symmetrically arranged inside the plugging ring, and the inner circles of the two hoops can respectively abut against the periphery of the plastic-lined pipe. Each hoop is provided with a third linear module.

[0014] Further, a fixing ring is fixedly arranged on the first base. Outer baffles are respectively arranged at both ends of the fixing ring. A support ring is arranged inside the fixing ring. Limiting ring grooves are respectively arranged at both ends of the support ring. Each limiting ring groove corresponds to an outer baffle. A plurality of support columns are arranged along the axial direction at one end of the outer baffle. A ball is installed at one end of each support column, and the periphery of the ball is rollingly connected to the limiting ring groove. Sawteeth are evenly distributed inside the support ring, and the transmission gear of the power unit meshes with the sawteeth.

[0015] Further, the power unit includes a power motor fixedly mounted on the transmission base, and a transmission gear is arranged on the transmission shaft of the power motor.

[0016] Further, the cutting assembly includes a tool holder, and a tool body is detachably mounted on the tool holder. One end of the tool holder is fixedly connected to the movable end of the sixth linear module. A limiting rod is arranged on one side of the tool holder. The sixth linear module is fixedly mounted on the third support plate, and a limiting sleeve is arranged on the third support plate. The periphery of the limiting rod is slidably connected to the limiting sleeve. The third support plate is fixedly mounted on the transmission base through a vertical rod.

[0017] Further, one side of the tool holder is rotatably connected to one side of the fourth support plate through a pin shaft. The fourth support plate is fixedly mounted on the movable end of the sixth linear module. A limiting rod is arranged on the fourth support plate. A second spring is installed at one end of the tool holder. An abutting plate is arranged on the fourth support plate. One end of the second spring abuts against the abutting plate, and a tool body is detachably mounted at the other end of the tool holder.

[0018] Further, the transmission base includes a fifth support plate and a sixth support plate. The cutting assembly and the clamping assembly are respectively fixedly mounted on the fifth support plate. The lower end of the fifth support plate is slidably connected to the lower end of the sixth support plate. A fourth linear module is installed on the sixth support plate, and the movable end of the fourth linear module is connected to the fifth support plate. The lower end of the sixth support plate is slidably connected to the seventh support plate. A fifth linear module is installed on the seventh support plate, and the movable end of the fifth linear module is connected to the sixth support plate. The fifth linear module can drive the sixth support plate to slide along the X axis, and the fourth linear module can drive the fifth support plate to slide along the Y axis.

[0019] Further, the pipe end detection component includes a second support rod, and the second support rod is fixedly installed at the movable end of the seventh linear module. A rotary motor is arranged on the second support rod, the rotating end of the rotary motor is installed at one end of an eighth support plate, and a CCD camera is arranged at the other end of the eighth support plate.

[0020] Compared with the prior art, the plastic-lined pipe end cutting device of the present invention has the following beneficial effects: (1) For the plastic-lined pipe end cutting device of the present invention, the external conveying device can convey the plastic-lined pipe to be cut to the pipe turning transmission component. The pipe turning transmission component turns the advancing direction of the plastic-lined pipe and unloads it to the pipe conveying component. The pipe conveying component positions and transports the plastic-lined pipe to the plastic-lined pipe rotary cutting component. And the pipe end position of the plastic-lined pipe is detected by the pipe end detection component. Then, the pipe end of the plastic-lined pipe is rotary cut by the plastic-lined pipe rotary cutting component. This device can automatically position and cut the redundant part of the pipe end of the plastic-lined pipe, with stable working efficiency and quality, and reduces the labor intensity of the staff.

[0021] (2) For the plastic-lined pipe end cutting device of the present invention, the adapter ring groove can match plastic-lined pipes of various specifications to slide on the transmission rollers. The sliding of the plastic-lined pipe is carried out by external power. When the plastic-lined pipe slides on the first support to a preset position, the movable end of the first linear module drives a plurality of turning plates to move upward through the first support plate. Each turning plate protrudes from between two transmission rollers. The plastic-lined pipe is jacked up by the guiding landslide at the upper end of the turning plate, and through the guiding of the guiding landslide, the plastic-lined pipe rolls to the next process, so as to realize the change of the advancing direction of the plastic-lined pipe and realize the processing of each plastic-lined pipe in the next process.

[0022] (3) For the plastic-lined pipe end cutting device of the present invention, the long side of the support block can push the plastic-lined pipe, so that the plastic-lined pipe falls into the V-shaped groove. Then, the support block rotates relative to the first sprocket, and the support block gradually lifts the plastic-lined pipe relative to the blocking plate, so that the plastic-lined pipe is disengaged from the limit of the blocking plate and moves synchronously with the support block, so as to achieve the purpose of moving each plastic-lined pipe to the plastic-lined pipe rotary cutting component.

[0023] (4) For the plastic-lined pipe end cutting device of the present invention, the second sensor is used to detect the presence of the plastic-lined pipe above the two support rollers. When the plastic-lined pipe linearly displaces with the support block to above the two support rollers, the second linear module pushes the support base and the two support rollers through the second support plate. Due to the action of gravity, the plastic-lined pipe will abut between the two support rollers, and the plastic-lined pipe moves upward with the support base and the support rollers. The plastic-lined pipe can be pushed to a set height by the second linear module, and this height is the working height of the plastic-lined pipe rotary cutting component, so as to realize the processing of the pipe end by the plastic-lined pipe rotary cutting component.

[0024] (5) For the plastic-lined pipe cutting head device of the present invention, the movable end of the third linear module can push the clamp to linearly slide, and the sliding track of the clamp is defined by the guide rod. The two sliding clamps can realize the clamping and releasing of the periphery of the plastic-lined pipe, so as to fix the relative positions of the plastic-lined pipe, the insertion ring and the support ring. The power motor can drive the support ring to rotate through the transmission gear, and the insertion ring and the plastic-lined pipe rotate relatively. The fixed ring, the first base and the cutting assembly are fixed in relative positions, so as to realize the rotary cutting of the pipe end.

[0025] (6) For the plastic-lined pipe cutting head device of the present invention, the sixth linear module can drive the tool body to approach or move away from the pipe end, so as to move the tool body to the working position. When the tool body contacts the pipe end to be contacted, the movable end of the sixth linear module does not stop until the second spring is compressed, so that the tool body always has a downward cutting pressure, so that when the plastic-lined pipe rotates, the tool body cuts the pipe end.

[0026] (7) For the plastic-lined pipe cutting head device of the present invention, the cutting assembly and the clamping assembly are respectively installed on the fifth support plate, and the fifth support plate is slidably arranged on the sixth support plate. The fifth linear module can drive the sixth support plate to slide relative to the seventh support plate. When the seventh support plate slides, the plastic-lined pipe can be inserted into the insertion ring, and at the same time, the tool body can be moved to the working position of the pipe end, so that after the pipe lifting assembly lifts the plastic-lined pipe in place, the relative position of the plastic-lined pipe can be fixed. The fourth linear module drives the fifth support plate to slide on the sixth support plate, which is an adjustment structure for pre-work preparation and can realize the adjustment of the working position of the insertion ring relative to the pipe lifting assembly, so as to ensure the relative concentricity of the insertion ring and the plastic-lined pipe.

[0027] (8) For the plastic-lined pipe cutting head device of the present invention, there are deviations in the roundness of the plastic-lined pipe itself, and there will also be deviations in the concentricity between the plastic-lined pipe and the support ring when the two clamps clamp the plastic-lined pipe. When the support ring drives the plastic-lined pipe to rotate synchronously, there will be relative position jumps of the periphery of the plastic-lined pipe relative to the two support rollers. The purpose of setting the first spring is to enable the support rollers to float relative to the plastic-lined pipe, so as to prevent the problem that the support rollers squeeze the plastic-lined pipe when the plastic-lined pipe rotates eccentrically. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 is a schematic structural diagram of a plastic-lined pipe cutting head device according to an embodiment of the present invention; Figure 2 is a schematic structural diagram of a pipeline steering transmission assembly according to an embodiment of the present invention; Figure 3 Front view schematic diagram of the pipeline steering transmission component described in the embodiment of the present invention; Figure 4 Schematic structural diagram of the cooperation between the pipeline conveying component and the pipeline lifting component described in the embodiment of the present invention; Figure 5 Schematic structural diagram of the pipeline lifting component described in the embodiment of the present invention; Figure 6 Schematic structural diagram of the plastic-lined pipe cutting component described in the embodiment of the present invention; Figure 7 Side view schematic diagram of the plastic-lined pipe cutting component described in the embodiment of the present invention; Figure 8 Schematic structural diagram of the cooperation between the support ring and the outer baffle described in the embodiment of the present invention; Figure 9 Schematic structural diagram of the support ring described in the embodiment of the present invention; Figure 10 Schematic structural diagram of the support column arranged on the outer baffle described in the embodiment of the present invention; Figure 11 Front view schematic diagram of the cutting component described in the embodiment of the present invention; Figure 12 Schematic structural diagram of the cutting component described in the embodiment of the present invention; Figure 13 Schematic structural diagram of the pipe end detection component described in the embodiment of the present invention; Figure 14 Schematic structural diagram of the plastic-lined pipe to be cut described in the embodiment of the present invention.

[0029] Explanation of reference numerals: 1 - Pipe turning drive assembly; 11 - First bracket; 12 - Driving roller; 13 - Turning plate; 14 - First support plate; 15 - First linear module; 16 - Blocking plate; 17 - First sensor; 2 - Pipe conveying assembly; 21 - First sprocket; 22 - Second sprocket; 23 - First chain; 24 - Support block; 3 - Pipe end detection assembly; 31 - Second support rod; 32 - Rotary motor; 33 - Eighth support plate; 4 - Plastic-lined pipe cutting assembly; 41 - Driving base; 411 - Fifth support plate; 412 - Sixth support plate; 413 - Seventh support plate; 414 - Fourth linear module; 415 - Fifth linear module; 42 - Cutting assembly; 421 - Tool holder; 422 - Tool body; 423 - Sixth linear module; 424 - Limiting rod; 425 - Third support plate; 426 - Second spring; 43 - Clamping assembly; 431 - First base; 432 - Support ring; 433 - Insertion ring; 434 - Third linear module; 435 - Hoop; 436 - Guide rod; 437 - Fixed ring; 438 - Outer baffle; 439 - Support column; 4310 - Ball; 4311 - Limiting ring groove; 44 - Power unit; 441 - Driving gear; 5 - Pipe lifting assembly; 51 - Support base; 52 - Support roller; 53 - Second linear module; 54 - First support rod; 55 - Second support plate; 56 - Sliding sleeve; 6 - Plastic-lined pipe to be cut; 61 - Inner lining; 62 - Steel pipe. Detailed implementation mode

[0030] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0033] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0034] As Figures 1-13 shown, a plastic-lined pipe end cutting device includes a pipe turning and driving assembly 1, a pipe conveying assembly 2, a pipe end detection assembly 3, and a plastic-lined pipe rotary cutting assembly 4. The pipe turning and driving assembly 1 is located at one end of the pipe conveying assembly 2, and a plastic-lined pipe rotary cutting assembly 4 is provided on each side of the pipe conveying assembly 2. Each plastic-lined pipe rotary cutting assembly 4 is equipped with a pipe end detection assembly 3. The pipe end detection assembly 3 is used to detect the pipe end of the plastic-lined pipe 6 to be cut. The pipe end is cut by the plastic-lined pipe rotary cutting assembly 4. A pipe lifting assembly 5 is provided between the two plastic-lined pipe rotary cutting assemblies 4. The pipe lifting assembly 5 is used to position the relative position of the plastic-lined pipe 6 to be cut. During implementation, an external conveying device can convey the plastic-lined pipe 6 to be cut to the pipe turning and driving assembly 1. The pipe turning and driving assembly 1 turns the advancing direction of the plastic-lined pipe and unloads it to the pipe conveying assembly 2. The pipe conveying assembly 2 positions and conveys the plastic-lined pipe to the plastic-lined pipe rotary cutting assembly 4. The pipe end position of the plastic-lined pipe is detected by the pipe end detection assembly 3, and then the pipe end of the plastic-lined pipe is rotary cut by the plastic-lined pipe rotary cutting assembly 4. This device can automatically position and cut off the redundant part of the pipe end of the plastic-lined pipe, with stable working efficiency and quality, and reduces the labor intensity of the staff.

[0035] The pipe turning and driving assembly 1 includes a first bracket 11, driving rollers 12, and turning plates 13. A plurality of driving rollers 12 are axially installed on the first bracket 11. The plastic-lined pipe 6 to be cut that slides linearly can slide on the driving rollers 12. A plurality of turning plates 13 are provided below the first bracket 11. The plurality of turning plates 13 are arranged parallel to each other, and each turning plate 13 is perpendicular to the driving rollers 12. Each turning plate 13 is located between two adjacent driving rollers 12. The lower end of each turning plate 13 is fixedly installed on the first support plate 14. The lower end of the first support plate 14 is fixedly installed on the moving end of the first linear module 15. The first linear module 15 is fixedly installed on the base. As Figure 2As shown in the figure, an adapter ring groove is provided in the middle of each drive roller 12, and a guiding landslide is provided at the upper end of each steering plate 13. Through the adapter ring groove, plastic-lined pipes of various specifications can be matched to slide on the drive roller 12. And the drive roller 12 in this embodiment is not equipped with power, and the sliding of the plastic-lined pipe is carried out by an external power. When the plastic-lined pipe slides on the first bracket 11 to a preset position, the movable end of the first linear module 15 drives a plurality of steering plates 13 to move upward through the first support plate 14. Each steering plate 13 projects out from between two drive rollers 12, jacks up the plastic-lined pipe through the guiding landslide at the upper end of the steering plate 13, and through the guiding of the guiding landslide, the plastic-lined pipe rolls to the next process, so as to change the advancing direction of the plastic-lined pipe and realize the processing of each plastic-lined pipe in the next process.

[0036] The first linear module 15 in this embodiment and the following second linear module 53, third linear module 434, fourth linear module 414, fifth linear module 415, and sixth linear module 423 are all linear motors of the prior art, and their control methods and motion methods will not be elaborated here.

[0037] A plurality of blocking plates 16 are arranged on one side of the first bracket 11, and the plurality of blocking plates 16 are arranged in parallel. The cross section of each blocking plate 16 is an L-shaped structure. The steering plate 13 is used to guide the plastic-lined pipe 6 to be cut from the drive roller 12 into the blocking plate 16, and a first sensor 17 is installed on the first bracket 11 or the blocking plate 16. The first sensor 17 is used to detect the position of the plastic-lined pipe 6 to be cut on the blocking plate 16. The plastic-lined pipe can be guided from the first bracket 11 to the blocking plate 16 through the guiding plate. The L-shaped structure of the blocking plate 16 is the positioning structure of the plastic-lined pipe. The plurality of blocking plates 16 can position and block the periphery of the plastic-lined pipe at one end of the pipeline conveying assembly 2, so that the pipeline conveying assembly 2 can lift and convey the plastic-lined pipe.

[0038] The pipeline conveying assembly 2 includes two groups of conveying line bodies, and the two groups of conveying line bodies are arranged in parallel. The two groups of conveying line bodies are synchronously driven by a driving shaft. Each conveying line body includes a first sprocket 21, a second sprocket 22, a first chain 23 and a support block 24. The first sprocket 21 is located on one side of the blocking plate 16. The periphery of the first chain 23 does not contact the periphery of the plastic-lined pipe 6 to be cut. The periphery of the first sprocket 21 is synchronously driven with the second sprocket 22 through the first chain 23. The inner ring of the first sprocket 21 is fixedly sleeved on the periphery of the driving shaft, and the inner ring of the second sprocket 22 is fixedly sleeved on the periphery of the driven shaft. The driving shaft and the driven shaft are respectively rotatably sleeved on the base. A plurality of support blocks 24 are installed along the circumference on the first chain 23. The support blocks 24 are used to support the periphery of the plastic-lined pipe 6 to be cut. The driving shaft is fixedly installed on the output shaft of an external power motor. The power motor can drive the first sprocket 21 to rotate synchronously. The first sprocket 21 drives the second sprocket 22 to rotate synchronously through the first chain, so as to realize the linear movement of a plurality of support blocks 24 installed on the first chain 23. In this embodiment, a V-shaped groove is provided at the upper end of the support block 24. The periphery of the plastic-lined pipe 6 to be cut abuts against the V-shaped groove. The lower end of the support block 24 is fixedly installed on the chain through a support shaft. The two side edges at the upper end of the support block 24 are of unequal length. The edge that first moves to the bottom of the plastic-lined pipe is shorter, and the edge that then moves to the bottom of the plastic-lined pipe is longer. The longer edge can interfere with the periphery of the plastic-lined pipe. The blocking plate 16 with an L-shaped structure has an angle relative to the horizontal. The long edge of the support block 24 can dial the plastic-lined pipe, so that the plastic-lined pipe falls into the V-shaped groove. Then the support block 24 rotates relative to the first sprocket 21, and the support block 24 gradually lifts the plastic-lined pipe relative to the blocking plate 16, so that the plastic-lined pipe is disengaged from the limit of the blocking plate 16 and moves synchronously with the support block 24, so as to achieve the purpose of moving the plastic-lined pipes to the plastic-lined pipe rotary cutting assembly 4 one by one.

[0039] The first sensor 17 in this embodiment and the following second sensor are both photoelectric sensors of the prior art, and have been used to detect the presence of the plastic-lined pipe in the relative position. Their control and detection are not described in detail here as they are far from this place.

[0040] The pipe lifting assembly 5 includes a support base 51. Two support rollers 52 are rotatably arranged in the support base 51, and the two support rollers 52 are arranged in parallel. A second sensor is arranged on the support base 51, and a second linear module 53 is installed at the lower end of the support base 51. A plurality of first support rods 54 are installed at the lower end of the support base 51. The movable end of the second linear module 53 is installed with a second support plate 55. A plurality of sliding sleeves 56 are installed on the second support plate 55. A first support rod 54 is slidably arranged in the inner ring of each sliding sleeve 56. A first spring is arranged at the lower end of the first support rod 54. The first spring is located in the sliding sleeve 56, and the lower end of the first spring is fixedly connected to the second support plate 55. The second sensor is used to detect the presence of the plastic-lined pipe above the two support rollers 52. When the plastic-lined pipe linearly displaces with the support block 24 to above the two support rollers 52, the second linear module 53 pushes the support base 51 and the two support rollers 52 through the second support plate 55. Due to the gravity, the plastic-lined pipe will abut between the two support rollers 52, and the plastic-lined pipe moves upward with the support base 51 and the support rollers 52. The plastic-lined pipe can be pushed to a set height by the second linear module 53, and this height is the working height of the plastic-lined pipe cutting assembly 4, so as to realize the processing of the pipe end by the plastic-lined pipe cutting assembly 4.

[0041] The plastic-lined pipe cutting assembly 4 includes a transmission base 41, a cutting assembly 42 and a clamping assembly 43. The cutting assembly 42 and the clamping assembly 43 are respectively fixedly installed on the transmission base 41, and the transmission base 41 can drive the cutting assembly 42 and the clamping assembly 43 to slide in two directions. The inner ring of the clamping assembly 43 can clamp the periphery of the plastic-lined pipe 6 to be cut. A power unit 44 is arranged on one side of the clamping assembly 43. The power unit 44 can drive the plastic-lined pipe 6 to be cut to rotate relative to the cutting assembly 42. The execution end of the cutting assembly 42 can cut the pipe end of the plastic-lined pipe.

[0042] The clamping assembly 43 includes a first base 431 which is fixedly mounted on the transmission base 41. A support ring 432 is sleeved inside the first base 431, and a plugging ring 433 is fixedly arranged inside the support ring 432. A third linear module 434 is fixedly arranged on the periphery of the plugging ring 433. A hoop 435 is arranged inside the plugging ring 433. A first sliding hole and a second sliding hole are respectively arranged on the side wall of the plugging ring 433. The movable end of the third linear module 434 passes through the first sliding hole and is fixedly mounted on the periphery of the hoop 435. A guide rod 436 is arranged on the periphery of the hoop 435, and the guide rod 436 is slidably connected to the second sliding hole. Two hoops 435 are symmetrically arranged inside the plugging ring 433, and the inner circles of the two hoops 435 can respectively abut against the periphery of the plastic-lined pipe. Each hoop 435 is provided with a third linear module 434. The movable end of the third linear module 434 can push the hoop 435 to linearly slide, and the sliding track of the hoop 435 is defined by the guide rod 436. The two sliding hoops 435 can realize the clamping and releasing of the periphery of the plastic-lined pipe, so as to fix the relative positions of the plastic-lined pipe, the plugging ring 433 and the support ring 432.

[0043] A fixing ring 437 is fixedly arranged on the first base 431. Outer baffles 438 are respectively arranged at both ends of the fixing ring 437. A support ring 432 is arranged inside the fixing ring 437. Limiting ring grooves 4311 are respectively arranged at both ends of the support ring 432. Each limiting ring groove 4311 corresponds to an outer baffle 438. A plurality of support columns 439 are axially arranged at one end of the outer baffle 438. A ball 4310 is mounted at one end of each support column 439, and the periphery of the ball 4310 is rollingly connected to the limiting ring groove 4311. Sawteeth are evenly distributed inside the support ring 432. The transmission gear 441 of the power unit 44 meshes with the sawteeth. The relative positions of the fixing ring 437 and the first base 431 are fixed. The fixing ring 437 and the support ring 432 can relatively rotate through the support of the balls 4310. In this embodiment, the power unit 44 includes a power motor which is fixedly mounted on the transmission base 41. A transmission gear 441 is arranged on the transmission shaft of the power motor. The power motor can drive the support ring 432 to rotate, and the plugging ring 433 and the plastic-lined pipe to relatively rotate through the transmission gear 441. The relative positions of the fixing ring 437, the first base 431 and the cutting assembly 42 remain unchanged, so as to realize the rotary cutting of the pipe end.

[0044] The cutting assembly 42 includes a tool holder 421. A tool body 422 is detachably mounted on the tool holder 421. One end of the tool holder 421 is fixedly connected to the movable end of a sixth linear module 423. A limiting rod 424 is arranged on one side of the tool holder 421. The sixth linear module 423 is fixedly mounted on a third support plate 425. A limiting sleeve is arranged on the third support plate 425, and the limiting rod 424 is slidably connected to the limiting sleeve. The third support plate 425 is fixedly mounted on the transmission base 41 through a vertical rod. One side of the tool holder 421 is rotatably connected to one side of the fourth support plate through a pin shaft. The fourth support plate is fixedly installed on the movable end of the sixth linear module 423. A limiting rod 424 is provided on the fourth support plate. A second spring 426 is installed at one end of the tool holder 421. An abutting plate is provided on the fourth support plate. One end of the second spring 426 abuts against the abutting plate. The other end of the tool holder 421 is detachably installed with a tool body 422. The sixth linear module 423 can drive the tool body 422 to approach or move away from the pipe end, that is, the sixth linear module 423 drives the tool body 422 to slide along the Z direction. During the process, the displacement trajectory of the tool body 422 is limited by the limiting rod 424, so as to achieve the purpose of moving the tool body 422 to the working position. When the tool body 422 contacts the pipe end to be contacted, the movable end of the sixth linear module 423 does not stop until the second spring 426 is compressed, so that the tool body 422 always has a downward cutting pressure, so that when the plastic-lined pipe rotates, the tool body 422 cuts the pipe end. In this embodiment, the downward displacement distance of the sixth linear module 423 is a preset value set by the staff in advance.

[0045] The transmission base 41 includes a fifth support plate 411 and a sixth support plate 412. The cutting assembly 42 and the clamping assembly 43 are respectively fixedly installed on the fifth support plate 411. The lower end of the fifth support plate 411 is slidably connected to the lower end of the sixth support plate 412. A fourth linear module 414 is installed on the sixth support plate 412. The movable end of the fourth linear module 414 is connected to the fifth support plate 411. The lower end of the sixth support plate 412 is slidably connected to the seventh support plate 413. A fifth linear module 415 is installed on the seventh support plate 413. The movable end of the fifth linear module 415 is connected to the sixth support plate 412. The fifth linear module 415 can drive the sixth support plate 412 to slide along the X axis. The fourth linear module 414 can drive the fifth support plate 411 to slide along the Y axis. The cutting assembly 42 and the clamping assembly 43 are respectively installed on the fifth support plate 411, and the fifth support plate 411 is slidably arranged on the sixth support plate 412. The fifth linear module 415 can drive the sixth support plate 412 to slide relative to the seventh support plate 413. When the seventh support plate 413 slides, the plastic-lined pipe can be inserted into the insertion ring 433, and at the same time, the tool body 422 can be moved to the working position of the pipe end, so that after the pipe lifting assembly 5 lifts the plastic-lined pipe in place, the relative position of the plastic-lined pipe can be fixed. The fourth linear module 414 drives the fifth support plate 411 to slide on the sixth support plate 412, which is an adjustment structure for pre-work preparation and can realize the adjustment of the working position of the insertion ring 433 relative to the pipe lifting assembly 5, so as to ensure the relative concentricity between the insertion ring 433 and the plastic-lined pipe.

[0046] During production, there are deviations in the roundness of the plastic-lined pipe itself, and the concentricity between the plastic-lined pipe and the support ring 432 will also be deviated when the two clamps 435 clamp the plastic-lined pipe. When the support ring 432 drives the plastic-lined pipe to rotate synchronously, there will be relative position jumps of the outer periphery of the plastic-lined pipe relative to the two support rollers 52. The purpose of setting the first spring is to enable the support roller 52 to float relative to the plastic-lined pipe, so as to prevent the problem that the support roller 52 squeezes the plastic-lined pipe when the plastic-lined pipe rotates eccentrically. And in this embodiment, the two plastic-lined pipe cutting assemblies 4 cut the pipe ends respectively instead of cutting simultaneously. During production, the two clamping assemblies 43 do not clamp the outer periphery of the plastic-lined pipe at the same time.

[0047] The pipe end detection assembly 3 includes a second support rod 31, and the second support rod 31 is fixedly installed at the movable end of the seventh linear module. A rotary motor 32 is arranged on the second support rod 31. The rotating end of the rotary motor 32 is installed at one end of the eighth support plate 33. A CCD camera is arranged at the other end of the eighth support plate 33. The rotary motor 32 is used to drive the eighth support plate 33 to rotate. When the eighth support plate 33 is perpendicular to the second support rod 31, the CCD camera is in the working position. When the eighth support plate 33 is parallel to the second support rod 31, the CCD camera can avoid the pipe end to prevent the pipe end from rubbing against the CCD camera. The CCD camera is a prior art. The CCD camera is used to take pictures of the pipe end to realize the acquisition of steel pipe end information. The acquired information is used to judge the distance that the fifth linear module 415 drives the sixth support plate 412 to travel. And the control mode of this embodiment is controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The provision of power also belongs to the common knowledge in the art. And this article is mainly used to protect mechanical devices. The control mode and circuit connection are not explained in detail in this article.

[0048] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A plastic-lined pipe cutting head device, characterized in that: It includes a pipeline steering drive assembly (1), a pipeline conveying assembly (2), a pipe end detection assembly (3), and a plastic-lined pipe cutting assembly (4). The pipeline steering drive assembly (1) is located at one end of the pipeline conveying assembly (2), and a plastic-lined pipe cutting assembly (4) is provided on each side of the pipeline conveying assembly (2). Each plastic-lined pipe cutting assembly (4) is equipped with a pipe end detection assembly (3). The pipe end detection assembly (3) is used to detect the pipe end of the plastic-lined pipe (6) to be cut. The plastic-lined pipe cutting assembly (4) cuts the pipe end. A pipeline lifting assembly (5) is provided between the two plastic-lined pipe cutting assemblies (4), and the pipeline lifting assembly (5) is used to position the relative position of the plastic-lined pipe (6) to be cut.

2. The cutting head device for a plastic-lined pipe according to claim 1, wherein: The pipeline steering drive assembly (1) includes a first bracket (11), a drive roller (12), and a steering plate (13). A plurality of drive rollers (12) are axially installed on the first bracket (11). The plastic-lined pipe (6) to be cut that slides linearly can slide on the drive rollers (12). A plurality of steering plates (13) are provided below the first bracket (11). The plurality of steering plates (13) are arranged parallel to each other, and each steering plate (13) is arranged perpendicular to the drive roller (12). Each steering plate (13) is located between two adjacent drive rollers (12). The lower end of each steering plate (13) is fixedly installed on the first support plate (14), and the lower end of the first support plate (14) is fixedly installed on the moving end of the first linear module (15). The first linear module (15) is fixedly installed on the base; An adaptor ring groove is provided in the middle of each drive roller (12), and a guiding landslide is provided at the upper end of each steering plate (13).

3. The cutting head device for a plastic-lined pipe according to claim 2, wherein: A plurality of blocking plates (16) are provided on one side of the first bracket (11), and the plurality of blocking plates (16) are arranged parallel to each other. The cross-section of each blocking plate (16) is an L-shaped structure. The steering plate (13) is used to guide the plastic-lined pipe (6) from the drive roller (12) into the blocking plate (16). A first sensor (17) is installed on the first bracket (11) or the blocking plate (16). The first sensor (17) is used to detect the position of the plastic-lined pipe (6) on the blocking plate (16).

4. A plastic-lined pipe cutting head device according to claim 1, characterized in that: The pipeline conveying assembly (2) includes two groups of conveying line bodies, and the two groups of conveying line bodies are arranged parallel to each other. The two groups of conveying line bodies are synchronously driven by a driving shaft. Each conveying line body includes a first sprocket (21), a second sprocket (22), a first chain (23), and a support block (24). The first sprocket (21) is located on one side of the blocking plate (16). The outer periphery of the first chain (23) does not contact the outer periphery of the plastic-lined pipe (6) to be cut. The outer periphery of the first sprocket (21) is synchronously driven with the second sprocket (22) through the first chain (23). The inner ring of the first sprocket (21) is fixedly sleeved on the outer periphery of the driving shaft, and the inner ring of the second sprocket (22) is fixedly sleeved on the outer periphery of the driven shaft. The driving shaft and the driven shaft are respectively rotatably sleeved on the base. A plurality of support blocks (24) are circumferentially installed on the first chain (23), and the support blocks (24) are used to lift and support the outer periphery of the plastic-lined pipe (6) to be cut; The upper end of the support block (24) is provided with a V-shaped groove, the periphery of the plastic-lined pipe (6) to be cut is abutted against the V-shaped groove, and the lower end of the support block (24) is fixedly installed on the chain through a support shaft.

5. The plastic-lined pipe cutting head device according to claim 1, characterized in that: The pipe lifting assembly (5) includes a support base (51), two support rollers (52) are rotatably arranged in the support base (51), and the two support rollers (52) are arranged in parallel. A second sensor is arranged on the support base (51), and a second linear module (53) is installed at the lower end of the support base (51); A plurality of first support rods (54) are installed at the lower end of the support base (51), a second support plate (55) is installed at the movable end of the second linear module (53), a plurality of sliding sleeves (56) are installed on the second support plate (55), and a first support rod (54) is slidably arranged in the inner ring of each sliding sleeve (56). A first spring is arranged at the lower end of the first support rod (54), the first spring is located in the sliding sleeve (56), and the lower end of the first spring is fixedly connected to the second support plate (55).

6. The cutting device for the plastic-lined pipe according to claim 1, characterized in that: The plastic-lined pipe rotary cutting assembly (4) includes a transmission base (41), a cutting assembly (42) and a clamping assembly (43). The cutting assembly (42) and the clamping assembly (43) are respectively fixedly installed on the transmission base (41), and the transmission base (41) can drive the cutting assembly (42) and the clamping assembly (43) to slide in two directions. The inner ring of the clamping assembly (43) can clamp the periphery of the plastic-lined pipe (6) to be cut, and a power unit (44) is arranged on one side of the clamping assembly (43). The power unit (44) can drive the plastic-lined pipe (6) to be cut to rotate relative to the cutting assembly (42), and the execution end of the cutting assembly (42) can cut the pipe end of the plastic-lined pipe (6).

7. A plastic-lined pipe cutting head device according to claim 6, characterized in that: The clamping assembly (43) includes a first base (431), the first base (431) is fixedly installed on the transmission base (41), a support ring (432) is sleeved inside the first base (431), and a plugging ring (433) is fixedly arranged inside the support ring (432). A third linear module (434) is fixedly arranged on the periphery of the plugging ring (433). A hoop (435) is arranged inside the plugging ring (433). The side wall of the plugging ring (433) is respectively provided with a first sliding hole and a second sliding hole. The movable end of the third linear module (434) passes through the first sliding hole and is fixedly installed on the periphery of the hoop (435). A guide rod (436) is arranged on the periphery of the hoop (435), and the guide rod (436) is slidably connected to the second sliding hole; And two hoops (435) are symmetrically arranged inside the plugging ring (433), and the inner rings of the two hoops (435) can respectively abut against the periphery of the plastic-lined pipe (6). Each hoop (435) is provided with a third linear module (434); A fixed ring (437) is fixedly arranged on the first base (431). Outer baffles (438) are arranged at both ends of the fixed ring (437). A support ring (432) is arranged on the inner circle of the fixed ring (437). Limiting ring grooves (4311) are arranged at both ends of the support ring (432). Each limiting ring groove (4311) corresponds to an outer baffle (438). A plurality of support columns (439) are arranged axially at one end of the outer baffle (438). A ball (4310) is installed at one end of each support column (439). The outer periphery of the ball (4310) is in rolling connection with the limiting ring groove (4311). Sawteeth are evenly distributed on the inner circle of the support ring (432). The transmission gear (441) of the power unit (44) is engaged with the sawteeth.

8. The cutting head device for a plastic-lined pipe according to claim 6, characterized in that: The cutting assembly (42) includes a tool holder (421). A tool body (422) is detachably installed on the tool holder (421). One end of the tool holder (421) is fixedly connected to the movable end of the sixth linear module (423). A limiting rod (424) is arranged on one side of the tool holder (421). The sixth linear module (423) is fixedly installed on the third support plate (425). A limiting sleeve is arranged on the third support plate (425). The outer periphery of the limiting rod (424) is in sliding connection with the limiting sleeve. The third support plate (425) is fixedly installed on the transmission base (41) through a vertical rod; One side of the tool holder (421) is rotationally connected to one side of the fourth support plate through a pin shaft. The fourth support plate is fixedly installed on the movable end of the sixth linear module (423). A limiting rod (424) is arranged on the fourth support plate. A second spring (426) is installed at one end of the tool holder (421). An abutting plate is arranged on the fourth support plate. One end of the second spring (426) abuts against the abutting plate. The other end of the tool holder (421) detachably installs the tool body (422).

9. A plastic-lined pipe cutting head device according to claim 6, characterized in that: The transmission base (41) includes a fifth support plate (411) and a sixth support plate (412). The cutting assembly (42) and the clamping assembly (43) are respectively fixedly installed on the fifth support plate (411). The lower end of the fifth support plate (411) is in sliding connection with the lower end of the sixth support plate (412). A fourth linear module (414) is installed on the sixth support plate (412). The movable end of the fourth linear module (414) is connected to the fifth support plate (411). The lower end of the sixth support plate (412) is in sliding connection with the seventh support plate (413). A fifth linear module (415) is installed on the seventh support plate (413). The movable end of the fifth linear module (415) is connected to the sixth support plate (412). The fifth linear module (415) can drive the sixth support plate (412) to slide along the X-axis. The fourth linear module (414) can drive the fifth support plate (411) to slide along the Y-axis.

10. A plastic-lined pipe cutting head device according to claim 1, characterized in that: The pipe end detection assembly (3) includes a second support rod (31). The second support rod (31) is fixedly installed on the movable end of the seventh linear module. A rotary motor (32) is arranged on the second support rod (31). The rotating end of the rotary motor (32) is installed at one end of the eighth support plate (33). A CCD camera is arranged at the other end of the eighth support plate (33).

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