CN218963709U - Forming machine for spiral welded pipe forming and automatic adjusting system - Google Patents
Forming machine for spiral welded pipe forming and automatic adjusting system Download PDFInfo
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- CN218963709U CN218963709U CN202222958973.9U CN202222958973U CN218963709U CN 218963709 U CN218963709 U CN 218963709U CN 202222958973 U CN202222958973 U CN 202222958973U CN 218963709 U CN218963709 U CN 218963709U
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Abstract
The utility model provides a forming machine for forming a spiral welded pipe and an automatic forming system thereof. The PLC calculates the position of each roller according to the pipe diameter, calculates the displacement of each roller according to the feedback quantity of the encoder and the displacement sensor, and then gives instructions to the motors of the motor driving units. The forming machine and the automatic forming system facilitate the adjustment of operators, improve the efficiency and quality of spiral welded pipe forming and ensure the safety of the operators.
Description
Technical Field
The utility model belongs to the technical field of equipment manufacturing, and particularly relates to a forming machine for forming a spiral welded pipe and an automatic profile adjusting system thereof.
Background
The spiral welded pipe is produced by rolling low carbon structural steel or low alloy structural steel strip into pipe blank according to certain spiral angle, and then welding the pipe seam. With the high-speed development of the economy in China in this century, spiral welded pipes are increasingly used in engineering capital construction in large scale.
In the production process of the spiral welded pipe, the equipment of the forming machine is required to be adjusted during production due to different calibers of the required welded pipe, different plate widths are often involved in producing steel pipes with different calibers, the calculation of trigonometric functions is involved, the equipment is required to be adjusted by manual adjustment or manual control buttons due to complex and changeable requirements, operators are required to have higher cultural level and strong manual capability, the process generally needs 3-5 hours, the time is longer, the requirements on the operators are high, errors are easy to occur, once the errors occur, the loss of raw materials is caused, the safety risk is easily brought to the operators, and therefore, the forming machine and an automatic adjusting system thereof are required to be designed, the adjustment of the operators is facilitated, the forming efficiency and quality of the spiral welded pipe are improved, and the safety of the operators is ensured.
Disclosure of Invention
The embodiment of the utility model provides a forming machine for forming a spiral welded pipe and an automatic forming system thereof, which are convenient for operators to adjust, improve the efficiency and quality of the spiral welded pipe forming and ensure the safety of the operators.
An embodiment of a first aspect of the present utility model provides a forming machine for forming a spiral welded pipe, including: forming a base; the front vertical roll is arranged on the forming base, is arranged at the inlet of the steel plate and is used for stabilizing the conveying of the steel plate and controlling the plate feeding position of the steel plate; a first roller and a third roller which are respectively and rotatably arranged on the respective arc-shaped seats, the first roller and the third roller are arranged on the forming base, the first roller and the third roller act on the outer surface of the spiral welded pipe to be formed, and the first roller and the third roller are used for helping the spiral welded pipe to be formed; the upright post is arranged on the forming base and is arranged on one side of the forming base; a second roller suspended from the upright, the second roller disposed between the first roller and the third roller, the second roller acting on an inner surface of the spiral welded pipe to be formed to assist in forming the spiral welded pipe to be formed; one or more cantilevers disposed above the molded base; and a plurality of external control rollers respectively arranged on the one or more cantilevers, wherein the external control rollers act on the outer surface of the spiral welded pipe to be formed to help the spiral welded pipe to be formed.
According to the forming machine for forming the spiral welded pipe, the front vertical roller is used for stabilizing the conveying of the steel plate and controlling the plate feeding position of the steel plate, the second roller acts on the inner surface of the spiral welded pipe, the first roller, the third roller and the outer control roller act on the outer surface of the spiral welded pipe, and the first roller, the third roller and the outer control roller act on the steel plate from multiple directions, so that the adjustment of operators is facilitated, the efficiency and the quality of the spiral welded pipe forming are improved, the adjustment amount is reduced, and the safety of the operators is guaranteed.
According to some embodiments of the utility model, the first roller, the second roller, the third roller, and the plurality of outer control rollers are disposed around a spiral weld pipe to be formed.
According to some embodiments of the utility model, the plurality of external control rollers includes a fourth roller, a fifth roller, and a sixth roller, the fourth roller and the sixth roller being disposed on both sides of the fifth roller, the fifth roller being disposed between the fourth roller and the sixth roller.
According to some embodiments of the utility model, the fifth roller is disposed at the highest point of the spiral welded pipe to be formed.
According to some embodiments of the utility model, an encoder is provided on each of the front vertical roller, the first roller, the second roller, the third roller, and the plurality of external control rollers for recording positional information of each of the front vertical roller, the first roller, the second roller, the third roller, and the plurality of external control rollers in real time and controlling movement of each of the front vertical roller, the first roller, the second roller, the third roller, and the plurality of external control rollers.
According to some embodiments of the utility model, a displacement sensor is arranged on the upright post, the displacement sensor is arranged at a position of a suspension screw rod, and the displacement sensor is used for recording and controlling the rolling-down amount and the nodding amount of the second roller.
According to some embodiments of the utility model, an electronic control system is further included for controlling motors, encoders and displacement sensors in drive units on each of the front vertical roller, the first roller, the second roller, the third roller and the plurality of external control rollers to form a closed loop control system such that each of the front vertical roller, the first roller, the second roller, the third roller and the plurality of external control rollers accurately reaches a respective self-adjusting position.
According to some embodiments of the utility model, the spiral weld tube is formed by a first roller, a second roller, and a third roller.
An embodiment of a second aspect of the present utility model provides an automatic profile control system for a spiral welded pipe forming machine, comprising a forming machine for spiral welded pipe forming according to any of the embodiments of the first aspect; and an encoder is provided on each of the front vertical roller, the first roller, the second roller, the third roller, and the plurality of external control rollers for recording positional information of each of the front vertical roller, the first roller, the second roller, the third roller, and the plurality of external control rollers in real time and controlling movement of each of the front vertical roller, the first roller, the second roller, the third roller, and the plurality of external control rollers.
According to some embodiments of the utility model, the automatic profiling system of a forming machine for spiral welded pipe forming further comprises: the stand column is provided with a displacement sensor, the displacement sensor is arranged at the position of the suspension screw rod, and the displacement sensor is used for recording and controlling the rolling-down amount and the nodding amount of the second roller.
According to some embodiments of the utility model, the automatic profiling system of a forming machine for spiral welded pipe forming further comprises: an electronic control system for controlling motors, encoders and displacement sensors in drive units on each of the front vertical roller, the first roller, the second roller, the third roller and the plurality of external control rollers to form a closed loop control system such that each of the front vertical roller, the first roller, the second roller, the third roller and the plurality of external control rollers accurately reaches respective self-adjusting positions.
According to some embodiments of the utility model, the automatic profiling system of a forming machine for spiral welded pipe forming further comprises: the PLC controller is positioned at the motor driving unit part of each of the first roller, the third roller and the external control roller, records the movement amount of each roller and feeds back the movement amount to the PLC controller; the displacement sensor is positioned at the moving part of the second roller, records the rolling-down amount and nodding amount of the second roller and feeds back the rolling-down amount and nodding amount to the PLC; the PLC calculates the position of each roller according to the pipe diameter, calculates the displacement of each roller according to the feedback quantity of the encoder and the displacement sensor, and then gives instructions to the motors of the motor driving units.
According to some embodiments of the utility model, the automatic shape adjusting system of the forming machine for spiral welded pipe forming converts a trigonometric function formula required by forming into four arithmetic operations by adding the control of the PLC controller, and writes the four arithmetic operations into a program, an operator only needs to input pipe diameters into a man-machine picture, the program can automatically calculate what position each roller should be, and the PLC controller can drive a motor of each motor driving unit to move each roller to a required position.
In the production of spiral steel pipes, forming machine equipment is required to be adjusted when steel pipes with different calibers are produced; the steel pipes with different calibers are produced by different widths, wherein the calculation of trigonometric functions is involved, and the equipment is adjusted by manual adjustment or manual control buttons, so that operators are required to have higher cultural level and strong manual capability; the above process generally takes 3-5 hours; through the automatic electric control system, the shape adjusting time can be controlled within 1.5 hours through field use, the technical level of operators is reduced, and when in field debugging, the operators only need to input the formed pipe diameter at a human-computer interface, and all parts in the forming machine can reach the designated positions under the driving of all control units. Through the automatic type adjusting system, the requirements on the technical level of operators can be effectively reduced, the labor intensity of the crew is lightened, the type changing time of the crew is saved, the production efficiency is improved, the number of operators is reduced, and the production cost is reduced. Through the transformation of each roller system driving part of the forming machine and the design of an electric control system, the requirements of the forming machine on the technical level of operators in the spiral pipe welding equipment can be effectively reduced, the time for the operators of the spiral pipe welding equipment forming machine to use when exchanging different steel pipe specifications is effectively reduced, the labor intensity of the operators of the spiral pipe welding equipment forming machine when exchanging different steel pipe specifications is effectively reduced, the production cost is reduced, and the competitiveness of the equipment is increased.
Drawings
FIG. 1 is a schematic view of a forming machine for spiral welded pipe forming in accordance with an embodiment of the present utility model;
FIG. 2 is a schematic view of a measured distance setting of a first roller and a third roller according to an embodiment of the present utility model; and
fig. 3 is a schematic view of the measurement distance setting of the fourth, fifth and sixth rollers according to an embodiment of the present utility model.
Reference numerals:
100: a molding machine;
1: a first roller; 2: a second roller; 3: a third roller; 4: a fourth roller; 5: a fifth roller; 6: a sixth roller; 7: a pad roller; 8: a column; 9: a front vertical roller; 10: forming a base; 11: a cantilever; 12: an encoder; 13: a displacement sensor; 14: spiral welded pipe to be formed.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, the technical solutions of the present utility model will be described in detail using specific embodiments with reference to the accompanying drawings.
The embodiment of the utility model provides a forming machine for forming a spiral welded pipe, which is convenient for operators to adjust, improves the efficiency and quality of the spiral welded pipe forming and ensures the safety of the operators.
Referring to fig. 1, the present utility model provides a forming machine 100 for spiral welded pipe forming, comprising: forming a base 10; the front vertical roll 9 is arranged on the forming base 10, the front vertical roll 9 is arranged at the inlet of the steel plate, and the front vertical roll 9 is used for stabilizing the conveying of the steel plate and controlling the plate feeding position and the plate feeding deviation of the steel plate; a first roller 1 and a third roller 3, the first roller 1 and the third roller 3 are respectively rotatably arranged on respective arc-shaped seats, the first roller 1 and the third roller 3 are arranged on a forming base 10, the first roller 1 and the third roller 3 act on the outer surface of a spiral welding pipe 14 to be formed, and the first roller 1 and the third roller 3 are used for helping the spiral welding pipe 14 to be formed; the upright post 8 is arranged on the molding base 10, and the upright post 8 is arranged on one side of the molding base 10; a second roller 2, the second roller 2 is hung on the upright post 8, the second roller 2 is arranged between the first roller 1 and the third roller 3, and the second roller 2 acts on the inner surface of the spiral welded pipe 14 to be formed to help the spiral welded pipe 14 to be formed; one or more cantilevers 11, the one or more cantilevers 11 being disposed above the molded base 10; and a plurality of external control rollers respectively arranged on the one or more cantilevers, wherein the external control rollers act on the outer surface of the spiral welded pipe 14 to be formed to help the spiral welded pipe to be formed.
According to the forming machine for forming the spiral welded pipe, the front vertical roller is used for stabilizing the conveying of the steel plate and controlling the plate feeding position of the steel plate, the second roller acts on the inner surface of the spiral welded pipe, the first roller, the third roller and the outer control roller act on the outer surface of the spiral welded pipe, and the first roller, the third roller and the outer control roller act on the steel plate from multiple directions, so that the adjustment of operators is facilitated, the efficiency and the quality of the spiral welded pipe forming are improved, the adjustment amount is reduced, and the safety of the operators is guaranteed.
Referring to fig. 1, according to some embodiments of the present utility model, a first roller 1, a second roller 2, a third roller 3, and a plurality of external control rollers (e.g., a fourth roller 4, a fifth roller 5, a fifth roller 6 are disposed around a spiral welded pipe to be formed, so that pressure is applied to the spiral welded pipe to be formed from a plurality of directions, thereby ensuring high quality forming.
Referring to fig. 1, according to some embodiments of the present utility model, the plurality of external control rollers may include a fourth roller 4, a fifth roller 5, and a sixth roller 6, the fourth roller 4 and the sixth roller 6 being disposed at both sides of the fifth roller 5, the fifth roller 5 being disposed between the fourth roller 4 and the sixth roller 6. Further, as shown in fig. 1, the fifth roller 5 is provided at the highest point of the spiral welded pipe to be formed, thereby stabilizing the formation of the spiral welded pipe from the top and avoiding the swing of the steel plate at the time of formation. Further, as shown in fig. 1, the radius line of the spiral welded pipe to be formed where the fourth roller 4 and the sixth roller 6 are located is at an angle of 30-90 degrees relative to the radius line of the spiral welded pipe to be formed where the fifth roller 5 is located, so that the steel plate can be pressed from a plurality of positions, and high-quality forming is ensured. Preferably, the radius line of the spiral welded pipe to be formed where the fourth roller 4 and the sixth roller 6 are located is at an angle of 30-75 degrees relative to the radius line of the spiral welded pipe to be formed where the fifth roller 5 is located, so that the fourth roller 4 and the sixth roller 6 are separated by a large enough distance and distributed uniformly enough to ensure uniform forming of the spiral welded pipe, and further, the radius line of the spiral welded pipe to be formed where the fourth roller 4 and the sixth roller 6 are located is at an angle of 45-75 degrees relative to the radius line of the spiral welded pipe to be formed where the fifth roller 5 is located, so that uniform forming of the spiral welded pipe is further ensured.
According to some embodiments of the present utility model, an encoder 12 is provided on each of the front vertical roller 9, the first roller 1, the second roller 2, the third roller 3, and the plurality of external control rollers (e.g., the fourth roller 4, the fifth roller 5, the sixth roller 6), the encoder 12 being configured to record positional information of each of the front vertical roller 9, the first roller 1, the second roller 2, the third roller 3, and the plurality of external control rollers in real time and to control movement of each of the front vertical roller 9, the first roller 1, the second roller 2, the third roller 3, and the plurality of external control rollers.
According to some embodiments of the utility model, the column 8 is provided with a displacement sensor 13, the displacement sensor 13 is arranged at the position of the suspension screw, and the displacement sensor 13 is used for recording and controlling the depression and nodding amount of the second roller 2.
According to some embodiments of the present utility model, the forming machine 100 further comprises an electronic control system for controlling the motors, encoders 12 and displacement sensors 13 in the drive units on each of the front vertical roller 9, the first roller 1, the second roller 2, the third roller 3 and the plurality of external control rollers to form a closed loop control system such that each of the front vertical roller 9, the first roller 1, the second roller 2, the third roller 3 and the plurality of external control rollers accurately reach the respective self-adjusting positions.
For example, the molding machine 100 may include a PLC controller. The encoder 12 may be located at the motor driving unit parts of the first roller 1, the third roller 3, and the external control rollers (for example, the fourth roller 4, the fifth roller 5, and the sixth roller 6), record the movement amounts of the respective rollers, and feed back to the PLC controller; the displacement sensor 13 is positioned at the moving part of the second roller 2, records the rolling-down amount and nodding amount of the second roller 2 and feeds back to the PLC; the PLC can calculate the position of each roller according to the inputted pipe diameter, calculate the displacement of each roller according to the feedback quantity of the encoder 12 and the displacement sensor 13, and then send instructions to the motors of the motor driving units. By adding the control of the PLC controller, a trigonometric function formula required by molding is converted into four mathematical operations and written into a program, an operator only needs to input the pipe diameter into a man-machine picture, the program can automatically calculate the position of each roller, and the PLC controller can drive the motor of each motor driving unit to move each roller to the required position.
In the production of spiral steel pipes, forming machine equipment is required to be adjusted when steel pipes with different calibers are produced; the steel pipes with different calibers are produced by different widths, wherein the calculation of trigonometric functions is involved, and the equipment is adjusted by manual adjustment or manual control buttons, so that operators are required to have higher cultural level and strong manual capability; the above process generally takes 3-5 hours; through the automatic electric control system, the shape adjusting time can be controlled within 1.5 hours through field use, the technical level of operators is reduced, and when in field debugging, the operators only need to input the formed pipe diameter at a human-computer interface, and all parts in the forming machine can reach the designated positions under the driving of all control units. Through the automatic electric control system, the requirements on the technical level of operators can be effectively reduced, the labor intensity of the crew is lightened, the mold changing time of the crew is saved, the production efficiency is improved, the number of operators is reduced, and the production cost is reduced. Through the transformation of each roller system driving part of the forming machine and the design of an electric control system, the requirements of the forming machine on the technical level of operators in the spiral pipe welding equipment can be effectively reduced, the time for the operators of the spiral pipe welding equipment forming machine to use when exchanging different steel pipe specifications is effectively reduced, the labor intensity of the operators of the spiral pipe welding equipment forming machine when exchanging different steel pipe specifications is effectively reduced, the production cost is reduced, and the competitiveness of the equipment is increased.
According to some embodiments of the present utility model, the forming machine 100 further comprises a bonding pad roller 7, the bonding pad roller 7 being disposed between the first roller 1 and the third roller 3, the bonding pad roller 7 being for supporting the spiral welding tube 14 to be formed.
As shown in fig. 1, a second aspect of the present utility model provides an automatic profiling system for a spiral welded pipe forming machine, comprising: a forming machine 100 for spiral welded pipe forming according to any of the foregoing first aspect embodiments; and an encoder 12 is provided on each of the front vertical roller 9, the first roller 1, the second roller 2, the third roller 3, and the plurality of external control rollers, the encoder 9 being configured to record positional information of each of the front vertical roller 9, the first roller 1, the second roller 2, the third roller 3, and the plurality of external control rollers (e.g., the fourth roller 4, the fifth roller 5, the sixth roller 6) in real time and control movement of each of the front vertical roller 9, the first roller 1, the second roller 2, the third roller 3, and the plurality of external control rollers.
According to some embodiments of the utility model, the automatic profiling system of a forming machine for spiral welded pipe forming further comprises: the upright post 8 is provided with a displacement sensor 13, the displacement sensor 13 is arranged at the position of the suspension screw, and the displacement sensor 13 is used for recording and controlling the rolling-down amount and the nodding amount of the second roller 2.
According to some embodiments of the utility model, the automatic profiling system of a forming machine for spiral welded pipe forming further comprises: an electronic control system for controlling the motors, encoders 12 and displacement sensors 13 in the drive units on the front vertical roller 9, the first roller 1, the second roller 2, the third roller 3 and each of the plurality of external control rollers to form a closed loop control system such that the front vertical roller 9, the first roller 1, the second roller 2, the third roller 3 and each of the plurality of external control rollers accurately reach respective self-adjusting positions.
According to some embodiments of the utility model, the automatic profiling system of a forming machine for spiral welded pipe forming further comprises: a PLC controller, wherein an encoder 12 is located at a motor driving unit portion of each of the first roller 1, the third roller 3, and the external control rollers (for example, the fourth roller 4, the fifth roller 5, and the sixth roller 6), records a movement amount of each roller, and feeds back to the PLC controller; the displacement sensor 13 is positioned at the moving part of the second roller 2, records the rolling-down amount and nodding amount of the second roller 2 and feeds back to the PLC; the PLC calculates the position of each roller according to the pipe diameter, calculates the displacement of each roller according to the feedback quantity of the encoder and the displacement sensor, and then gives instructions to the motors of the motor driving units. By adding the control of the PLC, a trigonometric function formula required by forming is converted into four mathematical operations and written into a program, an operator only needs to input the pipe diameter into a man-machine picture, the program can automatically calculate the position of each roller, and the PLC can drive the motor of each motor driving unit to move each roller to the required position.
In the production of spiral steel pipes, forming machine equipment is required to be adjusted when steel pipes with different calibers are produced; the steel pipes with different calibers are produced by different widths, wherein the calculation of trigonometric functions is involved, and the equipment is adjusted by manual adjustment or manual control buttons, so that operators are required to have higher cultural level and strong manual capability; the above process generally takes 3-5 hours; through the automatic electric control system, the shape adjusting time can be controlled within 1.5 hours through field use, the technical level of operators is reduced, and when in field debugging, the operators only need to input the formed pipe diameter at a human-computer interface, and all parts in the forming machine can reach the designated positions under the driving of all control units. Through the automatic type adjusting system, the requirements on the technical level of operators can be effectively reduced, the labor intensity of the crew is lightened, the type changing time of the crew is saved, the production efficiency is improved, the number of operators is reduced, and the production cost is reduced. Through the transformation of each roller system driving part of the forming machine and the design of an electric control system, the requirements of the forming machine on the technical level of operators in the spiral pipe welding equipment can be effectively reduced, the time for the operators of the spiral pipe welding equipment forming machine to use when exchanging different steel pipe specifications is effectively reduced, the labor intensity of the operators of the spiral pipe welding equipment forming machine when exchanging different steel pipe specifications is effectively reduced, the production cost is reduced, and the competitiveness of the equipment is increased.
Referring to fig. 1, 2 and 3, fig. 2 is a schematic view of a measured distance setting of a first roller and a third roller according to an embodiment of the present utility model; and FIG. 3 is a schematic view of the measured distance settings of the fourth, fifth and sixth rollers according to an embodiment of the present utility model. The measurement distance of the first roller is L1, the measurement distance of the third roller is L3, the measurement distance of the fourth roller is L4, the measurement distance of the fifth roller is L5, and the measurement distance of the sixth roller is L6. The measurement distance is an adjustable distance or a movable distance of the respective rollers.
As shown in fig. 2 and 3, the automatic mold adjusting system of the molding machine comprises a molding base 10, a front vertical roller 9, a first roller 1, a second roller 2, a third roller 3, an external control roller (a fourth roller 4, a fifth roller 5 and a sixth roller 6) and an electric control system. The automatic profile adjusting system controls the movement of the first roller 1 and the third roller 3 by adding encoders at the lateral movement motors of the first roller 1 and the third roller 3; the second roller 2 of the automatic profile adjusting system is hung on the upright post, and a displacement sensor is added at the position of a hanging screw rod, so that the moving pressing-down amount of the second roller 2 and the nodding amount of the front and rear of the second roller 2 are controlled. Referring to fig. 3, the following is the molding data of the new development device XD14910.00 molding machine of my company.
The position of the first roller 1
(D represents pipe diameter)
The position l2=δ of the second roller 2 (δ represents the plate thickness)
The position of the third roller 3
(D represents pipe diameter)
The outer control roller in the automatic profile control system comprises a fourth roller 4, a fifth roller 5 and a sixth roller 6, and the movement of each roller is controlled by adding encoders in each driving unit of the fourth roller 4, the fifth roller 5 and the sixth roller 6. Fig. 3 shows the positions of the fourth, fifth and sixth externally controlled rolls 4, 5 and 6 during molding.
Distance of fourth roller 4
(D represents pipe diameter)
Distance l5=d-30 of fifth roller 5 (D represents pipe diameter)
Distance of sixth roller 6
(D represents pipe diameter)
By adding the control of the PLC in the electric control system, a trigonometric function formula required by forming is converted into four arithmetic operations and written into a program, an operator only needs to input the pipe diameter into a man-machine picture, the program can automatically calculate the position of each roller, and the PLC can drive a motor of a motion unit to move each roller to the required position.
Through setting up encoder, displacement sensor and PLC controller to each roller, constitute closed loop control system, the effectual requirement of forming machine to operating personnel's technical level in the spiral welded pipe equipment that has reduced, effectively reduced the intensity of labour of the regional operating personnel of shaping in the spiral welded pipe equipment, the effectual time of changing the type of forming machine in the spiral welded pipe equipment that has saved has improved the market competition ability of equipment.
The automatic profile adjusting system greatly reduces the requirements of equipment on the technical level of operators, the operators are required to master more complex trigonometric function calculation in the original profile adjusting process, after improvement, the operators only need to input the pipe diameter to be molded in a human-computer interface, and the PLC program can automatically calculate the positions of the rollers. The automatic shaping system of the shaping machine greatly reduces the labor intensity of operators, saves shaping time, and needs to sequentially adjust each roller after the operators calculate the positions of each roller in the original shaping process, and also needs to measure the real-time positions of each roller for many times during adjustment; after the automatic profile adjusting system is used, an operator only needs to input the forming pipe diameter in a human-computer interface, and the PLC program calculates the positions of the rollers, so that the motors of the moving units can be driven simultaneously to enable the rollers to reach the required positions. The modification time which is originally 3-5 hours after the modification is finished can be finished within 1.5 hours, and the production cost is greatly reduced.
The above examples are provided to illustrate specific embodiments of the utility model and are described in more detail, but are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (7)
1. A forming machine for forming a spiral welded pipe, comprising:
forming a base;
the front vertical roll is arranged on the forming base, is arranged at the inlet of the steel plate and is used for stabilizing the conveying of the steel plate and controlling the plate feeding position of the steel plate;
a first roller and a third roller which are respectively and rotatably arranged on the respective arc-shaped seats, the first roller and the third roller are arranged on the forming base, the first roller and the third roller act on the outer surface of the spiral welded pipe to be formed, and the first roller and the third roller are used for helping the spiral welded pipe to be formed;
the upright post is arranged on the forming base and is arranged on one side of the forming base;
a second roller suspended from the upright, the second roller disposed between the first roller and the third roller, the second roller acting on an inner surface of the spiral welded pipe to be formed to assist in forming the spiral welded pipe to be formed;
one or more cantilevers disposed above the molded base; and
the outer control rollers are respectively arranged on the one or more cantilevers and act on the outer surface of the spiral welded pipe to be formed to assist the spiral welded pipe to be formed.
2. An automatic profiling system for a spiral welded pipe forming machine, comprising:
a forming machine for spiral welded pipe forming according to claim 1; and
an encoder is provided on each of the front vertical roller, the first roller, the second roller, the third roller, and the plurality of external control rollers, for recording positional information of each of the front vertical roller, the first roller, the second roller, the third roller, and the plurality of external control rollers in real time and controlling movement of each of the front vertical roller, the first roller, the second roller, the third roller, and the plurality of external control rollers.
3. The automatic profiling system for a spiral welded pipe forming machine of claim 2 further comprising:
the stand column is provided with a displacement sensor, the displacement sensor is arranged at the position of the suspension screw rod, and the displacement sensor is used for recording and controlling the rolling-down amount and the nodding amount of the second roller.
4. The automatic profiling system of a molding machine for spiral welded pipe molding of claim 3 further comprising: an electronic control system for controlling motors, encoders and displacement sensors in drive units on each of the front vertical roller, the first roller, the second roller, the third roller and the plurality of external control rollers to form a closed loop control system such that each of the front vertical roller, the first roller, the second roller, the third roller and the plurality of external control rollers accurately reaches respective self-adjusting positions.
5. The automatic profiling system for a spiral welded pipe forming machine of claim 4 further comprising: the PLC controller is positioned at the motor driving unit part of each of the first roller, the third roller and the external control roller, records the movement amount of each roller and feeds back the movement amount to the PLC controller; the displacement sensor is positioned at the moving part of the second roller, records the rolling-down amount and nodding amount of the second roller and feeds back the rolling-down amount and nodding amount to the PLC; the PLC calculates the position of each roller according to the pipe diameter, calculates the displacement of each roller according to the feedback quantity of the encoder and the displacement sensor, and then gives instructions to the motors of the motor driving units.
6. The automatic profiling system for a spiral welded pipe forming machine of claim 5, wherein: by adding the control of the PLC, a trigonometric function formula required by forming is converted into four mathematical operations and written into a program, an operator only needs to input the pipe diameter into a man-machine picture, the program can automatically calculate the position of each roller, and the PLC can drive the motor of each motor driving unit to move each roller to the required position.
7. The automatic profiling system of a forming machine for spiral welded pipe forming according to claim 6, wherein the outer control roller comprises a fourth roller, a fifth roller and a sixth roller, and the basis for the position adjustment of each roller during profiling is as follows:
distance of measurement of first roller
D represents the pipe diameter;
the measured distance l2=δ of the second roller, δ representing the plate thickness;
distance of measurement of third roller
D represents the pipe diameter;
distance of measurement of fourth roller
D represents the pipe diameter;
the measurement distance l5=d-30 of the fifth roller, D representing the pipe diameter;
distance of measurement of the sixth roller
D represents the pipe diameter. />
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222958973.9U CN218963709U (en) | 2022-11-08 | 2022-11-08 | Forming machine for spiral welded pipe forming and automatic adjusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222958973.9U CN218963709U (en) | 2022-11-08 | 2022-11-08 | Forming machine for spiral welded pipe forming and automatic adjusting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218963709U true CN218963709U (en) | 2023-05-05 |
Family
ID=86161393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222958973.9U Active CN218963709U (en) | 2022-11-08 | 2022-11-08 | Forming machine for spiral welded pipe forming and automatic adjusting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218963709U (en) |
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2022
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