CN114309130B - Production process of welded pipe finish rolling pipe - Google Patents
Production process of welded pipe finish rolling pipe Download PDFInfo
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- CN114309130B CN114309130B CN202111664731.2A CN202111664731A CN114309130B CN 114309130 B CN114309130 B CN 114309130B CN 202111664731 A CN202111664731 A CN 202111664731A CN 114309130 B CN114309130 B CN 114309130B
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- 238000005096 rolling process Methods 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000005520 cutting process Methods 0.000 claims description 51
- 239000000463 material Substances 0.000 claims description 39
- 238000003756 stirring Methods 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 24
- 238000003466 welding Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims 1
- 238000012545 processing Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005097 cold rolling Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010622 cold drawing Methods 0.000 description 1
- 238000000641 cold extrusion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The application relates to a welded pipe finish rolling pipe production process and equipment, belonging to the field of steel pipe production.
Description
Technical Field
The application relates to the field of steel pipe production, in particular to a production process of a welded pipe finish rolling pipe.
Background
The steel material having a hollow section, the length of which is much greater than the diameter or circumference, is classified into circular, square, rectangular and profiled steel pipes according to the sectional shape, with circular steel pipes being most widely used.
The steel pipes can be divided into two main types according to the production method: the seamless steel pipe and the welded steel pipe are called welded pipes for short, the edges of the steel belt are welded into a pipe shape through welding after the steel belt is rolled, and the welded pipes can be divided into straight welded pipes and spiral welded pipes according to different welding modes; the seamless steel pipe is formed by perforating a whole round steel, and the surface of the seamless steel pipe is free of welding seams, and the production modes comprise hot rolling, cold drawing, extrusion and the like.
In the rolling production process of seamless pipes, in order to reduce damage to the pipe structure, the caliber change of the pipe rolled for a single time is not too large, but in order to enable the workpiece to reach the target size, each pipe is usually required to pass through a plurality of rolling procedures so as to enable the caliber of the pipe to be continuously close to a required value, and therefore more energy sources, equipment resources and time cost are consumed.
Disclosure of Invention
In order to solve the problems, the application provides a production process of a welded pipe finish rolling pipe.
The application provides a welded pipe finish rolling pipe production process and equipment, which adopt the following technical scheme:
a production process of a welded pipe finish rolling pipe sequentially comprises the following steps:
s1: manufacturing a blank pipe from a steel belt through a pipe welding process;
s2: cutting the blank pipe to a fixed length;
s3: rolling the cut blank pipe, and forming a finished pipe.
By adopting the technical scheme, before production, the steel strip with the corresponding size is selected according to the size of the final finished product pipe, so that the caliber of the blank pipe is close to and slightly larger than that of the final finished product pipe, and therefore, the finished product pipe meeting the requirements can be obtained by only carrying out cold rolling necking on the blank pipe once.
The welded pipe finish rolling pipe production equipment is applied to a welded pipe process and fixed-length cutting in the production process, and comprises a frame, wherein a straight seam welder is arranged on the frame, the straight seam welder comprises a feeding roller, the feeding roller is connected with the frame in a sliding manner, and the peripheral surface of the feeding roller is abutted against the side wall of a blank pipe; the cutting machine comprises a frame, a straight seam welder, a cutting table, a saw blade, a driving source, a cutting table and a cutting knife, wherein the cutting table is arranged on the frame and is positioned at the discharge end of the straight seam welder; the automatic feeding device is characterized in that a receiving groove body used for placing a blank pipe is arranged on the frame and located on one side of the cutter, which is away from the straight seam welder, and the axis of the blank pipe when located on the receiving groove body coincides with the axis of the blank pipe when in contact with the feeding roller.
By adopting the technical scheme, when the saw blade cuts the blank pipe, the cutting table moves along with the blank pipe until the blank pipe is completely broken, and the advancing process of the blank pipe is not affected; meanwhile, after the blank pipe leaves the feeding roller and before the blank pipe is completely cut, the blank passing through the cutter is supported by the receiving groove body, so that the down-warping deformation of the blank pipe due to self gravity is reduced.
Preferably, the material receiving groove body is provided with a plurality of abutting rollers, the abutting rollers rotate relative to the material receiving groove body, the abutting rollers are arranged along the advancing direction of the blank pipe, and the outer side walls of the abutting rollers are in contact with the side walls of the blank pipe and roll relatively.
Through adopting above-mentioned technical scheme, the blank pipe is at the internal in-process of advancing of receiving the silo, butt cylinder and blank pipe direct contact in order to support it, because the two relative rollings, the frictional damage that then blank pipe received is less.
Preferably, a middle rotating frame is arranged on the frame and positioned on one side of the receiving groove body, and a material shifting mechanism for pushing the blank pipe in the receiving groove body into the middle rotating frame is arranged on the frame.
Preferably, the material stirring mechanism comprises a middle shaft rod and a material stirring rod, the middle shaft rod is rotationally connected with the frame, the length direction of the middle shaft rod is consistent with the length direction of the material receiving groove body, the material stirring rod is fixedly connected to the side wall of the middle shaft rod, the material stirring rods are arranged in a plurality of positions and along the circumference of the middle shaft rod, the material receiving groove body is formed by two adjacent material stirring rods, and the material stirring mechanism further comprises a control assembly for controlling the rotation of the middle shaft rod.
By adopting the technical scheme, when the stirring rod rotates under the drive of the middle shaft rod, the stirring rod positioned on one side of the blank rod forms a lateral thrust to the blank rod, and the blocking effect of the stirring rod on the other side on the blank pipe is lost, so that the blank pipe is pushed away from the receiving tank body and enters the middle rotating frame.
Preferably, the control assembly comprises a control roller and a control guide piece, the control roller is rotationally connected with the frame, a spiral guide groove is formed in the wall of the control roller, the control guide piece is connected with the cutting table, the control guide piece is located in the spiral guide groove and slides, and the control roller is used for transmitting torque to the middle shaft rod.
By adopting the technical scheme, the cutting belt slides in the spiral guide groove in the process of moving along with the cutting table, and generates a transverse thrust action on the groove wall of the spiral guide groove and the control roller to drive the control roller to rotate, so that torque for the rotation of the central shaft rod is generated.
Preferably, a return groove is formed in the side wall of the control roller, the return groove is communicated with the spiral guide groove, and the length direction of the control roller, the length direction of the return groove and the moving direction of the cutting table are all parallel.
By adopting the technical scheme, the length direction of the return groove is consistent with the length direction of the control roller and the moving direction of the control guide piece, so that the control guide piece cannot cause the rotation of the control roller in the process of moving in the return groove.
Preferably, a one-way valve is arranged on the control roller and positioned at the communication part of the return groove and the spiral guide groove, the one-way valve comprises a first gate valve and a second gate valve, when the control guide piece moves away from the straight seam welder, the first gate valve is used for preventing the control guide piece from entering the return groove, and when the control guide piece moves close to the straight seam welder, the second gate valve is used for preventing the control guide piece from entering the spiral guide groove.
By adopting the technical scheme, the one-way valve determines the sliding direction of the control guide piece in the spiral guide groove and the return groove, so that the control guide piece slides in the spiral guide groove when moving away from the straight seam welder, the control roller rotates, the control guide piece slides in the return groove when moving close to the straight seam welder, and the control roller keeps static.
Preferably, the control guide member is a guide roller, the guide roller rotates relative to the cutting table, and the peripheral surface of the guide roller contacts with the groove wall of the spiral guide groove and rolls relatively.
By adopting the technical scheme, the sliding smoothness of the control guide piece in the sliding process can be improved by adopting a relatively rolling contact mode, and the structural damage of each part is reduced.
Preferably, the frame is fixedly connected with an anti-slip pad, and the anti-slip pad is abutted with the control roller.
By adopting the technical scheme, larger friction force needs to be overcome when the control roller rotates, so that the middle shaft lever is not easy to automatically rotate, and the state stability of the middle shaft lever and the stirring rod is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. Through the arrangement of rolling processing after the welded pipe is formed, the production process of the welded pipe is combined with the production process of the seamless pipe, when the welded pipe is processed, proper steel strip raw materials are selected according to the target size, so that the radial size of the formed blank pipe is close to the target size of the finished pipe, then the blank pipe is rolled, the finished pipe can be formed by single rolling, the rolling times are reduced, the period of rolling processing is shortened, the structural quality of the pipe is good due to fewer plastic deformation times, and the original weld trace on the surface of the finished pipe is desalted after rolling, so that the finished pipe has higher appearance quality compared with the welded pipe;
2. through the arrangement of the material receiving groove body, the material receiving groove body supports the blank passing through the cutter after the blank pipe leaves the feeding roller and before the blank pipe is completely cut, so that the down-warping deformation of the blank pipe due to the gravity of the blank pipe is reduced;
3. Through setting up of the stirring mechanism, the stirring mechanism pushes the blank pipe subjected to fixed-length cutting into the middle rotating frame in time, so that the receiving trough body can continuously carry out subsequent blank pipe receiving work.
Drawings
FIG. 1 is a process flow diagram for embodying a welded pipe finish rolling pipe production process in an embodiment of the present application.
FIG. 2 is a schematic view of an apparatus for embodying a fixed length cutting process in a process for producing a welded pipe finish rolling pipe according to an embodiment of the present application.
Fig. 3 is a schematic diagram of a shaft used to embody the drive of the control assembly in an embodiment of the present application.
Fig. 4 is a schematic view of a structure for embodying a control drum in an embodiment of the present application.
Reference numerals illustrate: 1. a frame; 11. a straight seam welder; 12. a feed roller; 13. a cutter; 131. a cutting table; 132. sawing; 14. a receiving trough body; 15. a middle rotating frame; 151. a landslide frame; 152. a placing rack; 16. an anti-slip pad; 2. a stirring mechanism; 21. a middle shaft lever; 22. a stirring rod; 221. abutting the roller; 3. a control assembly; 31. controlling the roller; 311. a spiral guide groove; 312. a return channel; 313. a transmission part; 32. a control guide; 321. a guide roller; 33. a one-way valve; 331. a first gate valve; 332. a second gate valve; 4. and (5) a blank pipe.
Detailed Description
The application is described in further detail below with reference to fig. 1-4.
In a first aspect, an embodiment of the present application discloses a process for producing a welded pipe finish rolling pipe, as shown in fig. 1, which sequentially includes the following steps:
s1: carrying out rolling, welding and weld treatment processing on the steel belt by using a pipe welding process, and forming the steel belt into a blank pipe which is a circular pipe;
s2: cutting the blank pipe to a fixed length;
S3: performing heat treatment on the cut blank pipe, improving the plasticity of the blank pipe, straightening the heat-treated blank pipe for the first time, and performing water pressure or nondestructive detection;
s4: cold rolling, and forming a blank pipe into a finished pipe;
s5: carrying out heat treatment on the finished pipe again and carrying out secondary straightening;
S6: carrying out acid washing/passivation treatment on the finished pipe;
s7: and (5) checking and testing finished products.
The implementation principle of the production process of the finish-rolled welded pipe provided by the embodiment of the application is as follows:
The steel strip processed by the pipe welding process is selected according to the size of the finished pipe to be formed, so that the caliber of the blank pipe is close to and slightly larger than that of the final finished pipe, and the finished pipe meeting the requirements can be obtained by only carrying out cold rolling necking on the blank pipe once. Compared with the manufacturing process of the seamless pipe with a plurality of rolling steps, the process reduces the rolling times, shortens the period of rolling processing, and ensures that the structural quality of the pipe is good due to fewer plastic deformation times; compared with the welded pipe production process, the process reduces the original weld trace on the surface of the final finished pipe because the welded pipe is subjected to necking rolling, and has higher appearance forming quality.
In a second aspect, an embodiment of the present application discloses an apparatus for producing a welded pipe finish rolling pipe, the apparatus is applied to a welded pipe process and fixed length cutting in the production process, as shown in fig. 2, and includes a frame 1, a straight seam welder 11 (only a part is shown in the drawing) is sequentially disposed on the frame 1 along a direction of workpiece travel, a cutter 13 and a receiving tank 14, a steel strip is formed into a blank pipe 4 after being rolled, welded and welded by the straight seam welder 11, a plurality of feed rolls 12 are rotationally connected to a position where the straight seam weld approaches a cutting table 131, the plurality of feed rolls 12 are arranged along the direction of travel of the blank pipe 4, a peripheral surface of each feed roll 12 abuts against a side wall of the blank roll, a motor for driving one of the feed rolls 12 to rotate is disposed in the frame 1, and the feed rolls 12 are driven to move forward by friction force applied to the blank pipe 4 when rotating.
As shown in fig. 2, the cutter 13 includes a cutting table 131 and a saw blade 132, the cutting table 131 is slidably connected with the frame 1, a driving source for controlling the sliding of the cutting table 131 is provided on the frame 1, in this embodiment, the driving source is an electric sliding table, and a straight line where the sliding direction of the cutting table 131 is located is parallel to the travelling direction of the blank tube 4. The saw blade 132 is mounted on the cutting table 131, and the saw blade 132 in this embodiment is an electric saw for cutting the blank pipe 4 at fixed intervals; when the blank pipe 4 advances, the cutting table 131 is located at the initial position, and when the point to be cut on the blank pipe 4 advances below the cutting edge of the saw blade 132, the cutting table 131 moves together with the blank pipe 4, and the saw blade 132 starts to operate until the blank pipe 4 is relatively stationary during the completion of the cutting. After the material is cut, the cutting table 131 is reversely moved to the initial position to wait for the arrival of the next point to be cut.
As shown in fig. 2 and 3, a material stirring mechanism 2 is arranged on the frame 1 and positioned on one side of the cutter 13 far away from the straight seam welder 11, the material stirring mechanism 2 comprises a middle shaft rod 21 and a material stirring rod 22, the middle shaft rod 21 is rotationally connected with the frame 1, the length direction of the middle shaft rod 21 is consistent with the advancing direction of the blank pipe 4, and the rotating axis is the axis of the middle shaft rod 21. The material stirring rods 22 are arranged in a plurality of groups along the length direction of the middle shaft rod 21, each group of material stirring rods 22 is provided with four material stirring rods 22, the four material stirring rods 22 are annularly arrayed by taking the axis of the middle shaft rod 21 as the center, and the length direction of each material stirring rod 22 is the radial direction of the middle shaft rod 21. In the projection along the length direction of the middle shaft rod 21, each stirring rod 22 in each group of stirring rods 22 is uniformly and correspondingly overlapped, an included angle of 90 degrees is formed between every two adjacent stirring rods 22 in each group, and then all stirring rods 22 on the whole middle shaft rod 21 form four groove bodies around the middle shaft rod 21, and the groove bodies are the material receiving groove bodies 14; the blank tubes 4 pass through the cutting station 131 and then enter the receiving channel 14, where a single channel can be provided for one blank tube 4 at a time along its length.
As shown in fig. 3, each material shifting rod 22 is coaxially sleeved with an abutting roller 221, the abutting rollers 221 can freely rotate around the material shifting rods 22, when the blank pipe 4 enters the material receiving groove body 14, the outer wall of the blank pipe 4 is in direct contact with the outer wall of the abutting rollers 221 and rolls relatively, and the axis when the blank pipe 4 is positioned in the material receiving groove body 14 is coincident with the axis when the blank pipe is positioned in contact with the material feeding roller 12.
As shown in fig. 2, a middle rotating frame 15 is fixedly arranged on the frame 1 and positioned on one side of the middle shaft rod 21, and the middle rotating frame 15 is used for placing the blank pipe 4 subjected to fixed-length cutting; the middle rotating frame 15 comprises a placing frame 152 and a landslide frame 151, the top of the landslide frame 151 is located beside the middle shaft rod 21, and the placing frame 152 is located at the bottom of the landslide frame 151.
As shown in fig. 3 and 4, the material stirring mechanism 2 further comprises a control assembly 3 for controlling the rotation of the middle shaft rod 21, the control assembly 3 comprises a control roller 31 and a control guide piece 32, the control roller 31 is rotationally connected with the frame 1, and the length direction and the rotation plane of the control roller 31 are consistent with those of the middle shaft rod 21. Four spiral guide grooves 311 and four return grooves 312 are formed in the outer side wall of the control roller 31, the four spiral guide grooves 311 and the four return grooves 312 are all distributed in an annular array along the axis of the control roller 31, and the circumferential span of each spiral guide groove 311 on the control roller 31 is 90 degrees.
As shown in fig. 2,3 and 4, the control guide 32 is connected to the cutting table 131 and moves synchronously with the cutting table, and when the cutter just completes the cutting action on the blank pipe 4, the cutting table 131 still moves a certain distance along with the blank pipe 4, and during this period, the control guide 32 moves into the spiral guide slot 311. The control roller 31 is coaxially and fixedly connected with a transmission part 313, the radial dimension of the rotation part is consistent with that of the middle shaft lever 21, and the transmission part 313 and the middle shaft lever 21 are wound with the same conveyor belt. The control guide 32 will abut against the groove wall of the spiral guide groove 311, so that a lateral thrust force pushing the control drum 31 to rotate is applied to the control drum 31, and when the control drum 31 rotates, torque is transmitted to the center shaft lever 21 through a belt transmission, thereby realizing rotation control of the center shaft lever 21, and each time the control guide 32 draws one spiral guide groove 311, the rotation angle of the center shaft lever 21 is 90 °.
As shown in fig. 3 and 4, the length direction of the return groove 312 coincides with the length direction of the control drum 31, a single return groove 312 is located between two adjacent spiral guide grooves 311, one end of the return groove 312 communicates with one end of one of the spiral guide grooves 311 away from the seam welder 11, the other end communicates with one end of the other spiral guide groove 311 close to the seam welder 11, and the return groove 312 is used for sliding the control guide 32 when the cutter returns to the initial position. The control roller 31 is provided with a one-way valve 33 at the communication position between the return groove 312 and the spiral guide groove 311, the one-way valve 33 comprises a first gate valve 331 and a second gate valve 332, the first gate valve 331 is positioned at the position where the return groove 312 is close to the straight seam welder 11, the second gate valve 332 is positioned at the position where the spiral guide groove 311 is far away from the straight seam welder 11, the first gate valve 331 is hinged with the groove wall of the return groove 312 through a torsion spring, and the second gate valve 332 is also hinged with the groove wall of the spiral guide groove 311 through a torsion spring. In a natural state, the first gate valve 331 and the second gate valve 332 both seal the return channel 312 and the spiral channel 311, and the first gate valve 331 can only rotate into the spiral channel 311 but cannot rotate into the return channel 312, and the second gate valve 332 can only rotate into the return channel 312 but cannot rotate into the spiral channel 311.
As shown in fig. 3 and 4, the control guide 32 does not move into the return groove 312 when moving to the notch of the spiral guide groove 311 along the travelling direction of the blank pipe 4, but only moves in the spiral guide groove 311, so that the middle shaft rod 21 is driven to rotate, and the second gate valve 332 can be jacked up and enter the return groove 312 when reaching the end of the spiral guide groove 311 far from the straight seam welder 11; when the cutting table 131 moves back, the second gate valve 332 has closed the spiral guide slot 311, and the control guide 32 can only move along the back slot 312, eventually pushing the first gate valve 331 open and away from the control cylinder 31. In this embodiment, the control guide 32 is a guide roller 321, the guide roller 321 is rotatably connected with the cutting table 131, and the peripheral surface of the guide roller 321 is in direct contact with the groove wall of the spiral guide groove 311, the groove wall of the return groove 312, or the first gate valve 331 and the second gate valve 332 and rolls relatively, so as to improve the smoothness of the sliding process of the control guide 32 and reduce the structural damage of each component.
As shown in fig. 3, the frame 1 is fixedly attached with a rubber anti-slip pad 16, and the anti-slip pad 16 is always tightly abutted against the side wall of the control roller 31, so that a larger friction force needs to be overcome when the control roller 31 rotates, the middle shaft lever 21 is not easy to automatically rotate, and the state stability of the material receiving groove 14 is improved.
The embodiment of the application provides a welded pipe finish rolling pipe production device, which has the implementation principle that:
The straight seam welder 11 carries out welded pipe processing on the steel belt, the blank pipe 4 is molded and fixed-length segmentation is completed under the cutting action of the cutter 13; the working mechanism of the cutting machine and the material shifting mechanism 2 can continuously convey the blank pipe 4 processed by the straight welded pipe without interruption, and each time the cutting of one section of blank pipe 4 is finished on the material receiving groove body 14, the material shifting mechanism 2 pushes the section of blank pipe 4 into the middle rotating frame 15 in time and waits for the arrival of the next section of blank pipe 4; the operator can package and arrange the multi-section blank pipe 4 on the placing frame 152 of the transfer frame 15 and convey the multi-section blank pipe to the next process for subsequent processing.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (4)
1. A production process of a welded pipe finish rolling pipe is characterized by comprising the following steps of: the method sequentially comprises the following steps:
s1: manufacturing a blank pipe from a steel belt through a pipe welding process;
s2: cutting the blank pipe to a fixed length;
S3: rolling the cut blank pipe, and forming a finished pipe;
The welding pipe process and the fixed-length cutting adopt welding pipe finish rolling pipe production equipment, the welding pipe finish rolling pipe production equipment comprises a frame (1), a straight seam welder (11) is arranged on the frame (1), the straight seam welder (11) comprises a feeding roller (12), the feeding roller (12) is in sliding connection with the frame (1), and the peripheral surface of the feeding roller (12) is in butt joint with the side wall of a blank pipe (4);
The cutting machine is characterized in that a cutter (13) is arranged on the frame (1) and positioned at the discharge end of the straight seam welder (11), the cutter (13) comprises a cutting table (131) and a saw blade (132), the saw blade (132) is arranged on the cutting table (131), the cutting table (131) is connected with the frame (1) in a sliding mode, the sliding direction is parallel to the moving direction of the blank pipe (4), and a driving source for driving the cutting table (131) to slide is further arranged on the frame (1);
A receiving groove body (14) for placing the blank pipe (4) is arranged on the frame (1) and positioned on one side of the cutter (13) away from the straight seam welder (11), and the axis of the blank pipe (4) when positioned on the receiving groove body (14) coincides with the axis of the blank pipe when contacted with the feeding roller (12);
A middle rotating frame (15) is arranged on the frame (1) and positioned at one side of the receiving trough body (14), and a material shifting mechanism (2) for pushing the blank pipe (4) in the receiving trough body (14) into the middle rotating frame (15) is arranged on the frame (1);
The stirring mechanism (2) comprises a middle shaft rod (21) and stirring rods (22), the middle shaft rod (21) is rotationally connected with the frame (1), the length direction of the middle shaft rod (21) is consistent with the length direction of the material receiving groove body (14), the stirring rods (22) are fixedly connected to the side wall of the middle shaft rod (21), the stirring rods (22) are distributed in a plurality of circumferential directions along the middle shaft rod (21), the material receiving groove body (14) is formed by two adjacent stirring rods (22), and the stirring mechanism (2) further comprises a control component (3) for controlling the middle shaft rod (21) to rotate;
The control assembly (3) comprises a control roller (31) and a control guide piece (32), the control roller (31) is rotationally connected with the frame (1), a spiral guide groove (311) is formed in the wall of the control roller (31), the control guide piece (32) is connected with the cutting table (131), the control guide piece (32) is located in the spiral guide groove (311) to slide, and the control roller (31) is used for transmitting torque to the center shaft (21);
a return groove (312) is formed in the side wall of the control roller (31), the return groove (312) is communicated with the spiral guide groove (311), and the length direction of the control roller (31), the length direction of the return groove (312) and the moving direction of the cutting table (131) are all parallel;
The control roller (31) is provided with a one-way valve (33) at the communicating position of the return groove (312) and the spiral guide groove (311), the one-way valve (33) comprises a first gate valve (331) and a second gate valve (332), when the control guide piece (32) moves away from the straight seam welder (11), the first gate valve (331) is used for preventing the control guide piece (32) from entering the return groove (312), and when the control guide piece (32) moves close to the straight seam welder (11), the second gate valve (332) is used for preventing the control guide piece (32) from entering the spiral guide groove (311).
2. A process for producing a welded pipe finish rolling pipe according to claim 1, wherein: the material receiving groove body (14) is provided with a plurality of abutting rollers (221), the abutting rollers (221) rotate relative to the material receiving groove body (14), the abutting rollers (221) are arranged along the advancing direction of the blank pipe (4), and the outer side wall of the abutting rollers (221) and the side wall of the blank pipe (4) are in contact and roll relatively.
3. A process for producing a welded pipe finish rolling pipe according to claim 1, wherein: the control guide piece (32) is a guide roller (321), the guide roller (321) and the cutting table (131) rotate relatively, and the peripheral surface of the guide roller (321) is contacted with the groove wall of the spiral guide groove (311) and rolls relatively.
4. A process for producing a welded pipe finish rolling pipe according to claim 1, wherein: the anti-slip pad (16) is fixedly connected to the frame (1), and the anti-slip pad (16) is abutted to the control roller (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111664731.2A CN114309130B (en) | 2021-12-30 | 2021-12-30 | Production process of welded pipe finish rolling pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111664731.2A CN114309130B (en) | 2021-12-30 | 2021-12-30 | Production process of welded pipe finish rolling pipe |
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| Publication Number | Publication Date |
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| CN114309130A CN114309130A (en) | 2022-04-12 |
| CN114309130B true CN114309130B (en) | 2024-05-03 |
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| CN202111664731.2A Active CN114309130B (en) | 2021-12-30 | 2021-12-30 | Production process of welded pipe finish rolling pipe |
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| CN213497250U (en) * | 2021-05-24 | 2021-06-22 | 潍坊文和气动工具有限公司 | Laser cutting equipment for producing coil nails |
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| CN113458739A (en) * | 2021-08-17 | 2021-10-01 | 福建得乾集团有限责任公司 | Manufacturing method of high-pressure-resistant stainless steel water pipe |
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| CN113084459A (en) * | 2021-04-13 | 2021-07-09 | 中钢不锈钢管业科技山西有限公司 | Continuous intelligent forming process for stainless steel straight welded pipe |
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| CN113458739A (en) * | 2021-08-17 | 2021-10-01 | 福建得乾集团有限责任公司 | Manufacturing method of high-pressure-resistant stainless steel water pipe |
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| CN114309130A (en) | 2022-04-12 |
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