Engineering plastic production guiding and positioning system and positioning method

Abstract

The invention relates to the technical field of plastic production, in particular to a guiding and positioning system and method for engineering plastic production. The engineering plastic production guiding and positioning system comprises a fixing frame, an electric driving piece, a pressure distribution ring pipe and a pressure feeding pump are fixedly installed on the surface of the fixing frame, an air outlet end opening of the pressure feeding pump is fixedly communicated with the pressure distribution ring pipe, and the inner wall of the fixing frame is rotationally connected with an outer rotating ring and an inner rotating ring; the outer rotating ring and the inner rotating ring are both driven by an electric driving piece, and a pre-cleaning mechanism is installed on the surface of the outer rotating ring. The plastic pipe drilling device has the beneficial effects that through the arrangement of the positioning guide mechanism, the detection mechanism and other structures, the device can finish positioning guide operation during plastic pipe drilling machining in a high-suction mode, and on the basis that the positioning guide function is achieved, the detection mechanism, the pre-cleaning mechanism and the detection mechanism are additionally arranged, so that the machining efficiency is improved. Pre-cleaning, friction degree detection and roundness detection before pipe machining are achieved.

Description

Technical Field

[0001] This invention relates to the field of plastic production technology, specifically to a guiding and positioning system and method for engineering plastic production. Background Technology

[0002] Plastic pipes are generally made from synthetic resin, namely polyester, with the addition of stabilizers, lubricants, plasticizers, etc., through extrusion processing in a pipe-making machine using a "plastic" method. During the production process, the plastic pipes need to be drilled. When the plastic pipes enter the drilling platform, a positioning and guiding device is required to ensure precise feeding. Various types of positioning and guiding devices for plastic pipe production have emerged in the prior art. For example, patent document CN113306115B discloses a guiding and positioning device for engineering plastic pipe production. This device, through the setting of the guiding structure, can accurately guide and position the engineering plastic pipes to enter the cooling box, preventing collisions and compression at the cooling box's inlet that could affect the pipe quality. However, the above-mentioned device can only achieve the positioning and guiding function of the pipes but cannot perform pre-cleaning, friction detection, and roundness detection of the pipes before drilling. Based on this, the present invention provides an engineering plastic production guiding and positioning system and method to solve the problems mentioned in the background art. Summary of the Invention

[0003] This invention addresses the technical problems existing in the prior art by providing an engineering plastics production guiding and positioning system and method to solve the problem that existing plastics production positioning and guiding devices can only realize the positioning and guiding function of pipes, but cannot perform pre-cleaning, friction detection and roundness detection of plastic pipes before drilling and processing.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: An engineering plastic production guiding and positioning system includes a fixed frame. An electric drive unit, a pressure ring tube, and a pressure pump are fixedly installed on the surface of the fixed frame. The air outlet of the pressure pump is fixedly connected to the pressure ring tube. An outer rotating ring and an inner rotating ring are rotatably connected to the inner wall of the fixed frame. Both the outer rotating ring and the inner rotating ring are driven by the electric drive unit. A pre-cleaning mechanism is installed on the surface of the outer rotating ring. A set of positioning and guiding mechanisms arranged in a circular array are fixedly connected to the inner wall of the pressure ring tube. The plastic tube to be processed is conveyed through the set of positioning and guiding mechanisms on the inner wall of the fixed frame. A set of detection mechanisms arranged in a circular array are installed on the surface of the inner rotating ring.

[0005] The beneficial effects of this invention are:

[0006] By incorporating positioning and guiding mechanisms and detection mechanisms, this device can perform positioning and guiding operations during the drilling of plastic pipes. In addition to positioning and guiding functions, the device also enables pre-cleaning, friction detection, and roundness detection of pipes before processing through the addition of detection mechanisms and pre-cleaning structures. The realization of these detection functions effectively enhances the multifunctionality of this device.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the electric drive component includes a servo motor, and a drive shaft is fixedly mounted on the output shaft end of the servo motor. The peripheral side of the drive shaft is rotatably connected to the fixed frame. Two drive gears are fixedly mounted on the peripheral side of the drive shaft. The two drive gears have different specifications. A driven gear ring is fixedly mounted on the peripheral side of both the outer and inner spiral rings. The peripheral side of the two drive gears is respectively connected to the two driven gear rings for transmission.

[0009] The beneficial effect of adopting the above-mentioned further solution is that when the plastic tube to be processed is fed at a constant speed, the servo motor outputs a speed in a set state, and then drives the outer and inner rotating rings to rotate respectively.

[0010] Furthermore, the positioning and guiding mechanism includes a clamping sleeve, the inside of which is fixedly provided with a pressurizing chamber. The top end of the pressurizing chamber is fixedly connected to a pressure-covering ring tube. A solenoid valve and a pressure probe are sequentially arranged at the connection between the pressurizing chamber and the pressure-covering ring tube. A piston pressure seat is slidably connected to the inner wall of the clamping sleeve. A clamping rod is fixedly installed on the bottom surface of the piston pressure seat. A conveying clamping platform is fixedly connected below the clamping rod. A return spring is sleeved on the circumferential side of the clamping rod and at a position corresponding to the inside of the clamping sleeve. A set of conveying guide wheels arranged in a linear array are rotatably connected to the inner wall of the conveying clamping platform. A friction detection component is installed on the side of the conveying clamping platform. The rotation axis of the conveying guide wheels is perpendicular to the rotation axis of the plastic tube to be processed.

[0011] The beneficial effect of adopting the above-mentioned further solution is that, during use, a microcontroller is installed on the surface of the fixing frame, and the air pressure probe feeds back the monitored real-time signal to the microcontroller. The microcontroller monitors the clamping strength of the conveying guide wheel on the plastic tube to be processed based on the data feedback from the air pressure probe. When the air pressure inside the clamping sleeve does not reach the set value, the solenoid valve opens. Conversely, when the air pressure probe detects that the air pressure data inside the pressurization chamber reaches the set value, the solenoid valve automatically closes. The peripheral side of the conveying guide wheel is wrapped with a silicone gasket, thereby avoiding damage to the surface of the plastic tube to be processed when the conveying guide wheel performs clamping operations.

[0012] Furthermore, the friction detection component includes a positioning plate mounted on the surface of the conveying clamp. A set of guide rods is fixedly installed on the inner wall of the positioning plate. The axis of the guide rods is parallel to the axis of the plastic tube to be processed. A friction table is slidably connected to the inner wall of the positioning plate through the set of guide rods. A friction wheel block is fixedly installed on the inner wall of the friction table. The bottom edge of the friction wheel block is on the same straight line as the bottom edge of the conveying guide wheel. Friction patterns are fixedly provided on the surface of the friction wheel block. A pressure sensor is fixedly installed on one surface of the positioning plate opposite to the friction table.

[0013] The beneficial effect of adopting the above-mentioned further solution is that when it is necessary to detect the friction coefficient of the surface of the plastic tube to be processed, firstly, the friction coefficient of the four friction wheels should be consistent. Then, the pressure sensor is zeroed. When the plastic tube to be processed moves at a steady speed under the action of external equipment, the surface of the friction wheel blocks is clamped with the surface of the plastic tube to be processed by a set pressure. By monitoring the numerical feedback and numerical difference of the four pressure sensors, it is possible to monitor whether the surface friction coefficient of the plastic tube to be processed is uniform, thereby assisting in monitoring the surface quality of the plastic tube to be processed.

[0014] Furthermore, the pre-cleaning mechanism includes a negative pressure vacuum cleaner, two connecting plates, and a negative pressure stationary tube. The surfaces of both the negative pressure vacuum cleaner and the negative pressure stationary tube are fixedly connected to a fixed frame. The suction port of the negative pressure vacuum cleaner is fixedly connected to the negative pressure stationary tube. A negative pressure spiral tube is rotatably connected to the inner wall of the negative pressure stationary tube. A set of vents arranged in a circular array are provided inside the negative pressure spiral tube. The tail ends of both connecting plates are fixedly connected to an outer spiral ring. T-shaped pressure columns are slidably connected to the inner walls of both connecting plates. Pressure platforms are fixedly installed at the bottom ends of both T-shaped pressure columns. Each of the two T-shaped pressure columns is fitted with a first anti-compression spring on its circumferential side and at the position between the pressure platform and the connecting plate. The inner walls of the two pressure platforms are rotatably connected to a negative pressure cylinder. The inside of the negative pressure cylinder is provided with several sets of negative pressure suction holes arranged in a circumferential array. The end of the negative pressure cylinder is rotatably connected to a ventilation hose. The other end of the ventilation hose is fixedly connected to a negative pressure spiral tube. The tail end of the negative pressure cylinder is fixedly installed with a transmission wheel that cooperates with the plastic tube to be processed. A forward spiral brush and a reverse spiral brush are fixedly installed on the circumferential side of the two negative pressure cylinders, respectively.

[0015] The beneficial effect of adopting the above-mentioned further solution is that when the plastic tube to be processed is conveyed at a steady speed, the negative pressure vacuum cleaner performs negative pressure vacuuming operation at a set pressure. When the plastic tube to be processed enters between the four positioning guide mechanisms, the circumferential side of the transmission wheel remains in contact with the plastic tube to be processed. When the transmission wheel is driven by the outer rotating ring in a revolution-type manner, due to the contact setting between the transmission wheel and the plastic tube to be processed, the transmission wheel is then rotated. After the transmission wheel is driven, it drives the two negative pressure cylinders to rotate. After the two negative pressure cylinders rotate, they then drive the forward spiral brush and the reverse spiral brush respectively to perform cleaning operations on the surface of the plastic tube to be processed, thereby improving the detection accuracy of the detection mechanism and the processing effect of the plastic tube to be processed.

[0016] Furthermore, the forward spiral brush and the reverse spiral brush have opposite spiral directions, and both the forward spiral brush and the reverse spiral brush include an inner spiral metal skeleton, the outer edge of which is wrapped with bristles.

[0017] Furthermore, the detection mechanism includes a support plate fixed to the circumferential side of the inner rotating ring, a guide sleeve fixed to the inner wall of the inner rotating ring, a feedback toothed plate slidably connected to the support plate, a ranging sensor installed on the inner wall of the support plate, and a coupling rotatably connected to the inner wall of the support plate. A detection rod is slidably connected to the inner wall of the guide sleeve. A universal ball is embedded at the bottom end of the detection rod. A second anti-compression spring is sleeved on the circumferential side of the detection rod. A guide toothed plate is fixedly installed at the top end of the detection rod. A driven gear and a differential gear are fixedly installed on the circumferential side of the coupling. The circumferential side of the driven gear meshes with the guide toothed plate, and the circumferential side of the differential gear meshes with the feedback toothed plate. The port of the ranging sensor faces the feedback toothed plate.

[0018] The beneficial effect of adopting the above-mentioned further solution is that the detection rod, through its cooperation with the universal ball bearing, detects the surface runout value of the plastic tube to be processed, thereby assisting in the detection of whether the plastic tube to be processed is perfectly round. When the distance sensor is working, it feeds back the monitored real-time signal to the microcontroller. The function of the distance sensor is to monitor the displacement of the detection rod.

[0019] Furthermore, the ports of the guide sleeve and the ranging sensor are both perpendicular to the axis of the plastic tube to be processed, and the radius of the differential gear is 10 to 20 times the radius of the driven gear.

[0020] The beneficial effect of adopting the above-mentioned further scheme is that by setting the specification difference between the driven gear and the differential gear, the data feedback sensitivity of the monitoring agency during detection is improved.

[0021] A positioning method for an engineering plastics production guidance and positioning system includes the following steps;

[0022] SS001, Preset: Before operation, the fixing frame is installed on the drilling platform of the plastic tube to be processed. The conveying direction of the plastic tube to be processed is facing the drilling mechanism on the drilling platform. With manual assistance, the end of the plastic tube to be processed is pre-entered between the four positioning guide mechanisms. After the plastic tube to be processed enters the four positioning guide mechanisms, under the action of the first anti-compression spring, the bottom surfaces of the forward spiral brush, the reverse spiral brush and the transmission wheel are fully in contact with the plastic tube to be processed.

[0023] SS002, Positioning and Guiding: During positioning and guiding operations, the air pressure probe, the first pressure sensor, and the pressure sensor are pre-calibrated to zero. The high-pressure pump synchronously inflates the four pressurization chambers until the monitoring values ​​of the air pressure probes at the four conveyor clamps reach the set threshold. After the conveyor clamps are adjusted, external equipment provides displacement power to the plastic tube to be processed. When the plastic tube to be processed moves, the servo motor drives the outer and inner rotating rings to rotate at a set speed. After the outer rotating ring moves, it then cyclically changes the position of the transmission wheel. During the change of the transmission wheel position, it then drives the forward and reverse spiral brushes to clean the surface of the plastic tube to be processed. When the servo motor outputs its speed, the negative pressure vacuum cleaner generates a negative pressure suction source at a set power. During the movement of the plastic tube to be processed, the surface of the plastic tube acts on the friction table. By comparing the values ​​of the four pressure sensors, it is possible to monitor whether the friction coefficient of the surface of the plastic tube to be processed is the same. After the inner rotating ring rotates, it drives the detection rod to detect the runout value of the outer circumference of the plastic tube to be processed, thereby providing feedback on whether the plastic tube to be processed is perfectly round. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an engineering plastics production guidance and positioning system according to the present invention;

[0025] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the local structure at point A;

[0026] Figure 3 This is a schematic diagram of the structure of the pressure pump and negative pressure vacuum cleaner of the present invention;

[0027] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the local structure at point B;

[0028] Figure 5 For the present invention Figure 3 A schematic diagram of the cross-sectional structure;

[0029] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point C in the middle;

[0030] Figure 7 For the present invention Figure 5 A magnified schematic diagram of the local structure at point D;

[0031] Figure 8 For the present invention Figure 5 A magnified schematic diagram of the local structure at point E;

[0032] Figure 9 This is a schematic diagram of the driven gear ring and the conveying clamp of the present invention.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 1. Fixing frame; 2. Pressure ring tube; 3. Pressure pump; 4. Outer rotating ring; 5. Inner rotating ring; 6. Plastic tube to be processed; 7. Detection mechanism; 8. Servo motor; 9. Drive shaft; 10. Drive gear; 11. Driven gear ring; 12. Clamping sleeve; 13. Pressurization chamber; 14. Solenoid valve; 15. Air pressure probe; 16. Clamping rod; 17. Conveying platform; 18. Return spring; 19. Conveying guide wheel; 20. Positioning plate; 21. Guide rod; 22. Friction table; 23. Friction wheel 24. Pressure sensor; 25. Negative pressure vacuum cleaner; 26. Connecting plate; 27. Negative pressure stationary tube; 28. Negative pressure spiral tube; 29. ​​T-shaped pressure column; 30. Pressure table; 31. Negative pressure shaft cylinder; 32. Negative pressure suction hole; 33. Ventilation hose; 34. Drive wheel; 35. Forward spiral brush; 36. Reverse spiral brush; 37. Support plate; 38. Feedback toothed plate; 39. Distance sensor; 40. Detection rod; 41. Universal ball bearing; 42. Second anti-compression spring; 43. First anti-compression spring. Detailed Implementation

[0035] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0036] The present invention provides the following preferred embodiments.

[0037] like Figure 1-9 As shown, an engineering plastic production guiding and positioning system includes a fixed frame 1. An electric drive unit, a pressure ring tube 2, and a pressure pump 3 are fixedly installed on the surface of the fixed frame 1. The air outlet of the pressure pump 3 is fixedly connected to the pressure ring tube 2. An outer rotating ring 4 and an inner rotating ring 5 are rotatably connected to the inner wall of the fixed frame 1. Both the outer rotating ring 4 and the inner rotating ring 5 are driven by the electric drive unit.

[0038] The electric drive includes a servo motor 8. A transmission shaft 9 is fixedly mounted on the output shaft end of the servo motor 8. The circumferential side of the transmission shaft 9 is rotatably connected to the fixed frame 1. Two transmission gears 10 are fixedly mounted on the circumferential side of the transmission shaft 9. The two transmission gears 10 have different specifications. Driven gear rings 11 are fixedly mounted on the circumferential side of both the outer rotating ring 4 and the inner rotating ring 5. The circumferential side of the two transmission gears 10 is respectively connected to the two driven gear rings 11. When the plastic tube 6 to be processed is fed at a constant speed, the servo motor 8 outputs a speed in a set state, and then drives the outer rotating ring 4 and the inner rotating ring 5 to rotate respectively.

[0039] A pre-cleaning mechanism is installed on the surface of the outer rotating ring 4;

[0040] The pre-cleaning mechanism includes a negative pressure vacuum cleaner 25, two connecting plates 26 and a negative pressure stationary tube 27. The surfaces of the negative pressure vacuum cleaner 25 and the negative pressure stationary tube 27 are fixedly connected to the fixed frame 1. The vacuum port of the negative pressure vacuum cleaner 25 is fixedly connected to the negative pressure stationary tube 27. The inner wall of the negative pressure stationary tube 27 is rotatably connected to a negative pressure spiral tube 28. The inside of the negative pressure spiral tube 28 is provided with a set of vent holes arranged in a circumferential array.

[0041] The tail ends of both connecting plates 26 are fixedly connected to the outer rotating ring 4. T-shaped pressure columns 29 are slidably connected to the inner walls of both connecting plates 26. Pressure platforms 30 are fixedly installed at the bottom ends of both T-shaped pressure columns 29. First anti-compression springs 43 are sleeved on the circumferential sides of both T-shaped pressure columns 29 and at positions corresponding to the pressure platforms 30 and connecting plates 26. Negative pressure cylinders 31 are rotatably connected to the inner walls of both pressure platforms 30. Six sets of negative pressure suction holes 32 arranged in a circular array are opened inside the negative pressure cylinders 31. A ventilation hose 33 is rotatably connected to the end of the negative pressure cylinders 31. The other end of the ventilation hose 33 is fixedly connected to the negative pressure spiral tube 28. A transmission wheel 34 that cooperates with the plastic tube 6 to be processed is fixedly installed at the tail end of the negative pressure cylinders 31. A forward spiral brush 35 and a reverse spiral brush 36 are fixedly installed on the circumferential sides of the two negative pressure cylinders 31, respectively.

[0042] The forward spiral brush 35 and the reverse spiral brush 36 have opposite spiral directions. Both the forward spiral brush 35 and the reverse spiral brush 36 include an inner spiral metal skeleton, and the outer edge of the inner spiral metal skeleton is wrapped with bristles.

[0043] When the plastic tube 6 to be processed is conveyed at a steady speed, the negative pressure vacuum cleaner 25 performs negative pressure vacuuming operation at a set pressure. When the plastic tube 6 to be processed enters between the four positioning guide mechanisms, the peripheral side of the transmission wheel 34 keeps in contact with the plastic tube 6 to be processed. When the transmission wheel 34 is driven by the outer rotating ring 4 in a revolution, due to the contact setting between the transmission wheel 34 and the plastic tube 6 to be processed, the transmission wheel 34 is then rotated. After the transmission wheel 34 is driven, it drives the two negative pressure cylinders 31 to rotate. After the two negative pressure cylinders 31 rotate, they then drive the forward spiral brush 35 and the reverse spiral brush 36 respectively to perform cleaning operations on the surface of the plastic tube 6 to be processed, so as to improve the detection accuracy of the detection mechanism 7 and the processing effect of the plastic tube 6 to be processed.

[0044] The inner wall of the pressure ring tube 2 is fixedly connected to a set of positioning and guiding mechanisms arranged in a circular array. The inner wall of the fixed frame 1 is conveyed with the plastic tube 6 to be processed through a set of positioning and guiding mechanisms. A set of detection mechanisms 7 arranged in a circular array is installed on the surface of the inner rotating ring 5.

[0045] The positioning and guiding mechanism includes a clamping sleeve 12, with a pressurizing chamber 13 fixedly opened inside the clamping sleeve 12. The top end of the pressurizing chamber 13 is fixedly connected to the pressure ring tube 2. A solenoid valve 14 and a pressure probe 15 are sequentially arranged at the connection between the pressurizing chamber 13 and the pressure ring tube 2. A piston pressure seat is slidably connected to the inner wall of the clamping sleeve 12. A clamping rod 16 is fixedly installed on the bottom surface of the piston pressure seat. A conveying clamping platform 17 is fixedly connected below the clamping rod 16. A return spring 18 is sleeved on the circumferential side of the clamping rod 16 and at the position corresponding to the inside of the clamping sleeve 12. A set of conveying guide wheels 19 arranged in a linear array are rotatably connected to the inner wall of the conveying clamping platform 17. A friction detection component is installed on the side of the conveying clamping platform 17. The rotation axis of the conveying guide wheels 19 is perpendicular to the rotation axis of the plastic tube 6 to be processed.

[0046] In use, a microcontroller is mounted on the surface of the mounting bracket 1. The air pressure probe 15 feeds back the monitored real-time signal to the microcontroller. The microcontroller monitors the clamping strength of the conveying guide wheel 19 on the plastic tube 6 to be processed based on the data feedback from the air pressure probe 15. When the air pressure inside the clamping sleeve 12 does not reach the set value, the solenoid valve 14 opens. Conversely, when the air pressure probe 15 detects that the air pressure inside the pressurization chamber 13 has reached the set value, the solenoid valve 14 automatically closes. The peripheral side of the conveying guide wheel 19 is wrapped with a silicone gasket to avoid damage to the surface of the plastic tube 6 to be processed when the conveying guide wheel 19 performs clamping operations.

[0047] The microcontroller is an STM8S005K6T6C, and the air pressure probe 15 is a QMP6988.

[0048] The friction detection assembly includes a positioning plate 20 mounted on the surface of the conveying clamp 17. A set of guide rods 21 are fixedly mounted on the inner wall of the positioning plate 20. The axis of the guide rods 21 is parallel to the axis of the plastic tube 6 to be processed. A friction table 22 is slidably connected to the inner wall of the positioning plate 20 through the set of guide rods 21. A friction wheel block 23 is fixedly mounted on the inner wall of the friction table 22. The bottom edge of the friction wheel block 23 is on the same straight line as the bottom edge of the conveying guide wheel 19. Friction patterns are fixedly provided on the surface of the friction wheel block 23. A pressure sensor 24 is fixedly mounted on one surface of the positioning plate 20 opposite to the friction table 22.

[0049] When it is necessary to test the friction coefficient of the surface of the plastic tube 6 to be processed, firstly, the friction coefficient of the four friction wheels 23 should be consistent. Then, the pressure sensor 24 should be zeroed. When the plastic tube 6 to be processed moves at a steady speed under the action of external equipment, the surface of the friction wheel 23 and the surface of the plastic tube 6 to be processed are clamped with a set pressure. By monitoring the numerical feedback and numerical difference of the four pressure sensors 24, it is possible to monitor whether the surface friction coefficient of the plastic tube 6 to be processed is uniform, thereby assisting in monitoring the surface quality of the plastic tube 6 to be processed.

[0050] The detection mechanism 7 includes a support plate 37 fixed to the circumferential side of the inner rotating ring 5, a guide sleeve fixed to the inner wall of the inner rotating ring 5, a feedback toothed plate 38 slidably connected to the support plate 37, a distance sensor 39 installed on the inner wall of the support plate 37, and a coupling rotatably connected to the inner wall of the support plate 37. A detection rod 40 is slidably connected to the inner wall of the guide sleeve. A universal ball bearing 41 is embedded at the bottom end of the detection rod 40. A second anti-compression spring 42 is sleeved on the circumferential side of the detection rod 40. A guide toothed plate is fixedly installed at the top end of the detection rod 40. A driven gear and a differential gear are fixedly installed on the circumferential side of the coupling. The circumferential side of the driven gear meshes with the guide toothed plate, and the circumferential side of the differential gear meshes with the feedback toothed plate 38. The port of the distance sensor 39 faces the feedback toothed plate 38.

[0051] The model number of the ranging sensor 39 is T / R40-10OB01;

[0052] The detection rod 40, in cooperation with the universal ball bearing 41, detects the surface runout value of the plastic tube 6 to be processed, thereby assisting in the detection of whether the plastic tube 6 to be processed is perfectly round. When the distance sensor 39 is working, it feeds back the monitored real-time signal to the microcontroller. The function of the distance sensor 39 is to monitor the displacement of the detection rod 40.

[0053] The ports of the guide sleeve and the distance sensor 39 are both perpendicular to the axis of the plastic tube 6 to be processed, and the radius of the differential gear is 10 times the radius of the driven gear.

[0054] By setting the specification difference between the driven gear and the differential gear, the data feedback sensitivity of the monitoring agency during detection is improved.

[0055] A positioning method for an engineering plastics production guidance and positioning system includes the following steps;

[0056] SS001, Preset: Before operation, the fixing frame 1 is installed on the drilling platform of the plastic tube 6 to be processed. The conveying direction of the plastic tube 6 to be processed is directly opposite the drilling mechanism on the drilling platform. With manual assistance, the end of the plastic tube 6 to be processed is pre-entered between the four positioning guide mechanisms. After the plastic tube 6 to be processed enters the four positioning guide mechanisms, under the action of the first anti-compression spring 43, the bottom surfaces of the forward spiral brush 35, the reverse spiral brush 36 and the outgoing transmission wheel 34 are fully in contact with the plastic tube 6 to be processed.

[0057] SS002, Positioning and Guiding: During positioning and guiding operations, the air pressure probe 15, the first pressure sensor 24, and the pressure sensor 24 are pre-calibrated to zero. The high-pressure pump synchronously pressurizes the four pressurization chambers 13 until the monitoring values ​​of the air pressure probes 15 at the four conveying clamps 17 all reach the set threshold. After the conveying clamps 17 are adjusted, the external equipment provides displacement power to the plastic tube 6 to be processed. When the plastic tube 6 to be processed moves, the servo motor 8 drives the outer rotating ring 4 and the inner rotating ring 5 to rotate at a set speed. After the outer rotating ring 4 moves, it then cyclically changes the position of the transmission wheel 34. During the process, the forward spiral brush 35 and the reverse spiral brush 36 are driven to clean the surface of the plastic tube 6 to be processed. When the servo motor 8 outputs a speed, the negative pressure vacuum cleaner 25 generates a negative pressure suction source at a set power. During the movement of the plastic tube 6 to be processed, the surface of the plastic tube 6 to be processed acts on the friction table 22. By comparing the values ​​of the four pressure sensors 24, it is possible to monitor whether the friction coefficient of the surface of the plastic tube 6 to be processed is the same. After the inner rotating ring 5 rotates, the detection rod 40 is driven to detect the runout value of the outer circumference of the plastic tube 6 to be processed, and then feedback is given on whether the plastic tube 6 to be processed is a perfect circle.

[0058] In summary, the beneficial effects of this invention are specifically reflected in the following aspects:

[0059] By incorporating positioning and guiding mechanisms and detection mechanisms, this device can perform positioning and guiding operations during the drilling of plastic pipes. In addition to positioning and guiding functions, the device also enables pre-cleaning, friction detection, and roundness detection of pipes before processing through the addition of detection mechanisms and pre-cleaning structures. The realization of these detection functions effectively enhances the multifunctionality of this device.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A guiding and positioning system for engineering plastic production, comprising a fixing frame (1), characterized in that, The surface of the fixed frame (1) is fixedly mounted with an electric drive unit, a pressure ring tube (2) and a pressure pump (3). The outlet port of the pressure pump (3) is fixedly connected to the pressure ring tube (2). The inner wall of the fixed frame (1) is rotatably connected with an outer rotating ring (4) and an inner rotating ring (5). The outer rotating ring (4) and the inner rotating ring (5) are both driven by the electric drive unit. The surface of the outer rotating ring (4) is equipped with a pre-cleaning mechanism. The inner wall of the pressure ring tube (2) is fixedly connected with a set of positioning and guiding mechanisms arranged in a circular array. The inner wall of the fixed frame (1) conveys the plastic tube (6) to be processed through a set of positioning and guiding mechanisms. The surface of the inner rotating ring (5) is equipped with a set of detection mechanisms arranged in a circular array (7).

2. The engineering plastics production guidance and positioning system according to claim 1, characterized in that, The electric drive unit includes a servo motor (8), and a transmission shaft (9) is fixedly installed on the output shaft end of the servo motor (8).

3. The engineering plastics production guiding and positioning system according to claim 2, characterized in that, The circumferential side of the drive shaft (9) is rotatably connected to the fixed frame (1). Two drive gears (10) are fixedly installed on the circumferential side of the drive shaft (9). The two drive gears (10) have different specifications. Driven gear rings (11) are fixedly installed on the circumferential side of both the outer spiral ring (4) and the inner spiral ring (5). The circumferential side of the two drive gears (10) are respectively connected to the two driven gear rings (11).

4. The engineering plastics production guiding and positioning system according to claim 3, characterized in that, The positioning and guiding mechanism includes a clamping sleeve (12), and a pressurizing chamber (13) is fixedly opened inside the clamping sleeve (12). The top end of the pressurizing chamber (13) is fixedly connected to the pressure distribution ring pipe (2). A solenoid valve (14) and a pressure probe (15) are sequentially arranged at the connection between the pressurizing chamber (13) and the pressure distribution ring pipe (2). A piston pressure seat is slidably connected to the inner wall of the clamping sleeve (12), and a clamping rod (16) is fixedly installed on the bottom surface of the piston pressure seat. A conveying clamping platform (17) is fixedly connected to the lower part of the clamping rod (16). A return spring (18) is sleeved on the circumferential side of the clamping rod (16) and at the position corresponding to the inside of the clamping sleeve (12). A set of conveying guide wheels (19) arranged in a linear array are rotatably connected to the inner wall of the conveying clamping platform (17). A friction detection component is installed on the side of the conveying clamping platform (17). The rotation axis of the conveying guide wheels (19) is perpendicular to the rotation axis of the plastic tube (6) to be processed. The friction detection assembly includes a positioning plate (20) mounted on the surface of the conveying clamp (17). A set of guide rods (21) are fixedly installed on the inner wall of the positioning plate (20). The axis of the guide rods (21) is parallel to the axis of the plastic tube (6) to be processed. A friction table (22) is slidably connected to the inner wall of the positioning plate (20) through a set of guide rods (21). A friction wheel block (23) is fixedly installed on the inner wall of the friction table (22). The bottom edge of the friction wheel block (23) is on the same straight line as the bottom edge of the conveying guide wheel (19). Friction patterns are fixedly provided on the surface of the friction wheel block (23). A pressure sensor (24) is fixedly installed on one surface of the positioning plate (20) opposite to the friction table (22). The pre-cleaning mechanism includes a negative pressure vacuum cleaner (25), two connecting plates (26), and a negative pressure stationary pipe (27). The surfaces of the negative pressure vacuum cleaner (25) and the negative pressure stationary pipe (27) are fixedly connected to the fixing frame (1). The vacuum port of the negative pressure vacuum cleaner (25) is fixedly connected to the negative pressure stationary pipe (27). A negative pressure spiral pipe (28) is rotatably connected to the inner wall of the negative pressure stationary pipe (27). A set of vent holes arranged in a circular array are opened inside the negative pressure spiral pipe (28). The tail ends of the two connecting plates (26) are fixedly connected to the outer spiral ring (4). T-shaped pressure columns (29) are slidably connected to the inner walls of the two connecting plates (26). A pressure table (30) is fixedly installed at the bottom end of the two T-shaped pressure columns (29). A first anti-compression spring (43) is fitted on the circumferential side of the T-shaped pressure column (29) and at the position between the pressure platform (30) and the connecting plate (26). A negative pressure cylinder (31) is rotatably connected to the inner wall of the two pressure platforms (30). Several sets of negative pressure suction holes (32) arranged in a circular array are opened inside the negative pressure cylinder (31). A ventilation hose (33) is rotatably connected to the end of the negative pressure cylinder (31). The other end of the ventilation hose (33) is fixedly connected to the negative pressure spiral tube (28). A transmission wheel (34) that cooperates with the plastic tube (6) to be processed is fixedly installed at the tail end of the negative pressure cylinder (31). A forward spiral brush (35) and a reverse spiral brush (36) are fixedly installed on the circumferential side of the two negative pressure cylinders (31).

5. The engineering plastics production guiding and positioning system according to claim 4, characterized in that, The forward spiral brush (35) and the reverse spiral brush (36) have opposite spiral directions, and both the forward spiral brush (35) and the reverse spiral brush (36) include an inner spiral metal skeleton.

6. The engineering plastics production guiding and positioning system according to claim 5, characterized in that, The outer edge of the inner spiral metal skeleton is wrapped with bristles.

7. The engineering plastics production guiding and positioning system according to claim 1, characterized in that, The detection mechanism (7) includes a support plate (37) fixed to the circumferential side of the inner rotating ring (5), a guide sleeve fixed to the inner wall of the inner rotating ring (5), a feedback toothed plate (38) slidably connected to the support plate (37), a distance sensor (39) installed on the inner wall of the support plate (37), and a coupling rotatably connected to the inner wall of the support plate (37). A detection rod (40) is slidably connected to the inner wall of the guide sleeve. A universal ball (41) is embedded at the bottom end of the detection rod (40). A second anti-compression spring (42) is sleeved on the circumferential side of the detection rod (40). A guide toothed plate is fixedly installed at the top end of the detection rod (40). A driven gear and a differential gear are fixedly installed on the circumferential side of the coupling. The circumferential side of the driven gear meshes with the guide toothed plate. The circumferential side of the differential gear meshes with the feedback toothed plate (38). The port of the distance sensor (39) faces the feedback toothed plate (38).

8. The engineering plastics production guiding and positioning system according to claim 7, characterized in that, The ports of the guide sleeve and the distance sensor (39) are perpendicular to the axis of the plastic tube (6) to be processed, and the radius of the differential gear is 10 to 20 times the radius of the driven gear.

9. A positioning method for an engineering plastics production guiding and positioning system according to any one of claims 1-8, characterized in that, Includes the following steps; SS001, Preset, Before work, the fixing frame (1) is installed on the drilling platform of the plastic tube (6) to be processed. The conveying direction of the plastic tube (6) to be processed is facing the drilling mechanism on the drilling platform. With manual assistance, the end of the plastic tube (6) to be processed is pre-entered between the four positioning guide mechanisms. After the plastic tube (6) to be processed enters the four positioning guide mechanisms, under the action of the first anti-compression spring (43), the bottom surfaces of the forward spiral brush (35), the reverse spiral brush (36) and the outgoing transmission wheel (34) are fully in contact with the plastic tube (6) to be processed. SS002, Positioning and Guiding: During positioning and guiding operations, the air pressure probe (15), the first pressure sensor (24), and the pressure sensor (24) are pre-calibrated to zero. The high-pressure pump synchronously pressurizes the interior of the four pressurizing chambers (13) until the monitoring values ​​of the air pressure probes (15) at the four conveying clamps (17) all reach the set threshold. After the conveying clamps (17) are adjusted, the external equipment provides displacement power to the plastic tube (6) to be processed. When the plastic tube (6) to be processed moves, the servo motor (8) drives the outer rotating ring (4) and the inner rotating ring (5) to rotate at a set speed. After the outer rotating ring (4) moves, it then cyclically changes the position of the transmission wheel (34). During the process of change, the forward spiral brush (35) and the reverse spiral brush (36) are driven to clean the surface of the plastic tube (6) to be processed. When the servo motor (8) outputs a speed, the negative pressure vacuum cleaner (25) generates a negative pressure suction source with a set power. During the movement of the plastic tube (6) to be processed, the surface of the plastic tube (6) to be processed acts on the friction table (22). By comparing the values ​​of the four pressure sensors (24), it is possible to monitor whether the friction coefficient of the surface of the plastic tube (6) to be processed is the same. After the inner rotating ring (5) rotates, the detection rod (40) is driven to detect the runout value of the outer circumference of the plastic tube (6) to be processed, and then feedback whether the plastic tube (6) to be processed is a perfect circle.

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