阅读说明：本技术 一种带有位置调节结构的轧机用设备 (Equipment for rolling mill with position adjusting structure ) 是由 许路坤 叶寿喜 谢舍东 童秋明 田超 石付宗 金伟建 舒智广 张杰新 李祥 陶宇 于 2020-12-30 设计创作，主要内容包括：本发明公开了一种带有位置调节结构的轧机用设备,包括第一调度装置、第二调度装置、芯棒、毛坯管、进毛坯管流水线、芯棒循环流水线、流水线芯棒锁定装置、芯棒左右限位滚动装置、轧机、出轧机流水线、进轧机流水线、成品管,第一调度装置、第二调度装置和轧机均设置在地面上,且第一调度装置和第二调度装置相向设置；本发明提供了一种带有位置调节结构的轧机用设备,能有效解决轧机用的芯棒的自动上芯棒、自动毛坯管、自动涨紧、自动轧制、自动解锁、自动下成品管和自动芯棒循环的过程,减轻了劳动强度,降低了人工成本,提升自动化程度。(The invention discloses equipment for a rolling mill with a position adjusting structure, which comprises a first scheduling device, a second scheduling device, a mandrel, a blank pipe feeding assembly line, a mandrel circulating assembly line, an assembly line mandrel locking device, a mandrel left and right limiting rolling device, a rolling mill discharging assembly line, a rolling mill feeding assembly line and a finished product pipe, wherein the first scheduling device, the second scheduling device and the rolling mill are all arranged on the ground, and the first scheduling device and the second scheduling device are arranged in opposite directions; the invention provides equipment for a rolling mill with a position adjusting structure, which can effectively solve the circulating processes of automatic core rod feeding, automatic blank tube feeding, automatic tensioning, automatic rolling, automatic unlocking, automatic finished tube feeding and automatic core rod feeding of a core rod for the rolling mill, reduce the labor intensity, reduce the labor cost and improve the automation degree.)

1. The equipment for the rolling mill with the position adjusting structure comprises a mandrel (3), a mandrel circulating production line (6) and a mandrel left and right limiting and rolling device (8), wherein the mandrel left and right limiting and rolling devices (8) are arranged on a left side frame and a right side frame of the mandrel circulating production line (6) on the left and right sides;

the mandrel left and right limiting rolling device (8) comprises a left and right limiting base (81), a gear power shaft (82), a roller device (83), a transition device (84), a first guide shaft (85), a second guide shaft (87), a fourth compression spring (86), a roller device base (89) and a fifth compression spring (88), wherein the left and right limiting base (81) comprises a right gear shaft support frame (811), a left gear shaft support frame (812), a left guide shaft fixing plate (813) and a right guide shaft fixing plate (814), the gear power shaft (82) comprises a first belt pulley (821), a gear rotating shaft (822), a gear shaft (823), a second belt pulley (824), a first belt (825) and a production line roller (826), the first belt pulley (821) is arranged at the left end of the gear rotating shaft (822), the gear shaft (823) is arranged at the middle position of the gear rotating shaft (822), a gear rotating shaft (822) on a gear power shaft (82) is rotatably arranged on a left gear shaft support frame (812) and a right gear shaft support frame (811), two ends of a first guide shaft (85) and a second guide shaft (87) are respectively arranged on a left guide shaft fixing plate (813) and a right guide shaft fixing plate (814), a transition device (84) comprises a transition flat gear (841), a transition flat gear shaft (842) and a first bevel gear (843), a roller device base (89) comprises a first guide hole (891), a second guide hole (892), a roller device connecting plate (893), a left connecting plate (894) and a top connecting plate (895), the transition flat gear shaft (842) is rotatably arranged on the left connecting plate (894), a roller device (83) comprises a limiting roller (831), a limiting roller shaft (832) and a second bevel gear (833), and a limiting roller shaft (832) on the roller device (83) is rotatably arranged on an upper top connecting plate of the roller device base (89) 895) On, second bevel gear (833) and first bevel gear (843) meshing, first guiding hole (891) and second guiding hole (892) on roller device base (89) slide respectively on first guiding axle (85) and second guiding axle (87), and excessive gear axle (842) on excessive device (84) and gear axle (823) on gear power axle (82) meshing, the both ends voltage-sharing of fourth compression spring (86) and fifth compression spring (88) touches on left guiding axle fixed plate (813) right side and roller device base (89) left side, and slide respectively and set up on first guiding axle (85) and second guiding axle (87).

2. The apparatus for a rolling mill with a position adjusting structure according to claim 1, characterized in that: the assembly line roller (826) is a roller which is carried by all the assembly lines and is provided with power, the second belt pulley (824) is arranged on one side of the assembly line roller (826) and is positioned on the same plane with the first belt pulley (821) on the outer side of the assembly line frame, and the first belt pulley (821) is connected with the second belt pulley (824) through the first belt (825).

3. The apparatus for a rolling mill with a position adjusting structure according to claim 1, characterized in that: the whole outer ring of the gear shaft (823) is provided with external teeth, the middle of the gear shaft is fixedly arranged on the gear rotating shaft (822), and the surface degree is high.

4. The apparatus for a rolling mill with a position adjusting structure according to claim 1, characterized in that: the surface of the limiting roller wheel (831) is made of a material with large friction coefficient, wear resistance and high temperature resistance.

5. The apparatus for a rolling mill with a position adjusting structure according to claim 1, characterized in that: the first guide shaft (85) and the second guide shaft (87) have high surface smoothness, and the inner holes of the first guide hole (891) and the second guide hole (892) have high smoothness.

Technical Field

The invention relates to the technical field of rolling mills, in particular to equipment for a rolling mill with a position adjusting structure.

Background

At present, a rolling mill is an essential production device in the production of steel pipes, but a mandrel mill faces a great problem in production, particularly, a mandrel is difficult to extract after rolling, and the turnover time of the mandrel is long, so that the rolling efficiency of the mandrel mill is low, the energy consumption loss is large, and the production cost is high.

Disclosure of Invention

The invention provides equipment for a rolling mill with a position adjusting structure, aiming at the defects in the prior art.

In order to solve the technical problems, the invention is solved by the following technical scheme: the utility model provides an equipment for rolling mill with position control structure, includes that spacing rolling device about plug, plug circulation assembly line and plug all are provided with spacing rolling device about the plug on the left side of plug circulation assembly line and the right side frame.

The left and right limiting rolling device comprises a left and right limiting base, a gear power shaft, a roller device, a transition device, a first guide shaft, a second guide shaft, a fourth compression spring, a roller device base and a fifth compression spring, wherein the left and right limiting base comprises a right gear shaft support frame, a left guide shaft fixing plate and a right guide shaft fixing plate, the gear power shaft comprises a first belt pulley, a gear rotating shaft, a gear shaft, a second belt pulley, a first belt and a production line roller, the first belt pulley is arranged at the left end of the gear rotating shaft, the gear shaft is arranged at the middle position of the gear rotating shaft, the gear rotating shaft on the gear power shaft is rotatably arranged on the left gear shaft support frame and the right gear shaft support frame, two ends of the first guide shaft and the second guide shaft are respectively arranged on the left guide shaft fixing plate and the right guide shaft fixing plate, the transition device comprises a transition flat, The roller device comprises a roller device base and a transition flat gear shaft, wherein the roller device base comprises a first guide hole, a second guide hole, a roller device connecting plate, a left connecting plate and a top connecting plate, the transition flat gear shaft is rotatably arranged on the left connecting plate, the roller device comprises a limiting roller, a limiting roller shaft and a second bevel gear, the limiting roller shaft on the roller device is rotatably arranged on the upper top connecting plate of the roller device base, the second bevel gear is meshed with the first bevel gear, the first guide hole and the second guide hole on the roller device base are respectively arranged on the first guide shaft and the second guide shaft in a sliding manner, and the transition flat gear shaft on the transition device is meshed with the gear shaft on the gear power shaft, and the two ends of the fourth compression spring and the fifth compression spring are in pressure-equalizing contact with the right side of the left guide shaft fixing plate and the left side of the roller device base and are respectively arranged on the first guide shaft and the second guide shaft in a sliding manner.

The mandrel left and right limiting rolling device has the advantages that the mandrel left and right limiting rolling devices are arranged on the left and right sides of the assembly line, so that the mandrel or the pipe can be drawn close to the central line under the action of the compression springs through the limiting rolling wheels on the two sides when the mandrel or the pipe is not on the central line.

Among the above-mentioned technical scheme, preferred, the assembly line gyro wheel is all assembly lines from the gyro wheel of taking, and self has power, and the second belt pulley setting is in one side of assembly line gyro wheel, and is in the coplanar with first belt pulley in the outside of assembly line frame, and first belt pulley is connected through first belt with the second belt pulley.

Its beneficial effect is that power on the assembly line gyro wheel can transmit through the first belt between first belt pulley and the second belt pulley to make gear power shaft have power, transmit power for first bevel gear through the meshing of gear shaft and excessive spur gear, through the meshing of first bevel gear and second bevel gear, finally transmit power for spacing gyro wheel, make spacing gyro wheel also have power, thereby when making the assembly line gyro wheel skid, spacing gyro wheel also can provide power for transporting the piece.

In the above technical solution, preferably, the entire outer ring of the gear shaft is externally toothed, and the middle of the gear shaft is fixedly arranged on the gear rotating shaft, and the gear shaft has a high surface smoothness.

The gear device has the beneficial effects that when the roller device base slides back and forth on the first guide shaft and the second guide shaft, the gear shaft on the gear power shaft can be always meshed with the transition flat gear, so that power is always provided for the limiting roller.

Among the above-mentioned technical scheme, preferred, spacing gyro wheel surface is that coefficient of friction is big, wear-resisting, high temperature resistant material.

In the above technical solution, preferably, the first guide shaft and the second guide shaft have high surface finish, and the first guide hole and the second guide hole have high inner hole finish.

The roller device has the beneficial effects that the roller device base can slide back and forth on the first guide shaft and the second guide shaft without obstacles.

The invention has the beneficial effects that: the invention provides equipment for a rolling mill with a position adjusting structure, which can effectively solve the circulating processes of automatic core rod feeding, automatic blank tube feeding, automatic tensioning, automatic rolling, automatic unlocking, automatic finished tube feeding and automatic core rod feeding of a core rod for the rolling mill, reduce the labor intensity, reduce the labor cost and improve the automation degree.

Drawings

FIG. 1 is a schematic view of the present invention.

FIG. 2 is a top view of the present invention.

FIG. 3 is a schematic view of the present invention.

FIG. 4 is a schematic view of a mandrel cycle line according to the present invention.

FIG. 5 is a partial schematic view of the present invention.

FIG. 6 is a schematic view of a rolling line according to the present invention.

Fig. 7 is a cross-sectional view of a mandrel of the present invention.

Fig. 8 is a longitudinal cross-sectional view of a mandrel of the present invention.

FIG. 9 is a schematic view of a mandrel shaft according to the present invention.

FIG. 10 is a schematic view of a mandrel collar of the present invention.

FIG. 11 is a partial schematic view of the outer ring of the mandrel of the present invention.

Fig. 12 is a longitudinal cross-sectional view of a mandrel of the present invention.

FIG. 13 is a diagram of a scheduling apparatus according to the present invention.

FIG. 14 is a cross-sectional view of a dispatching device of the present invention.

FIG. 15 is a transverse sectional view of the dispatching device of the invention.

FIG. 16 is a partial schematic view of a scheduling apparatus according to the present invention.

Fig. 17 is a schematic view of a scheduling limiting device according to the present invention.

Fig. 18 is a sectional view of the scheduling stop device of the present invention.

FIG. 19 is a schematic view of the core rod locking apparatus of the assembly line of the present invention.

FIG. 20 is a schematic view of an assembly line mandrel locking chassis of the present invention.

FIG. 21 is a schematic view of a mandrel lock buckle of the present invention.

FIG. 22 is a cross-sectional view of the in-line mandrel locking device of the present invention.

FIG. 23 is a schematic view of a mandrel bar left and right rolling stopper device according to the present invention.

FIG. 24 is a partial schematic view of a mandrel bar left and right rolling device according to the present invention.

FIG. 25 is a schematic view of a part of a mandrel bar left and right rolling stopper device according to the present invention.

FIG. 26 is a schematic view showing the installation of the rolling device for limiting the mandrel bar left and right according to the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings and the detailed description

Example 1: referring to fig. 4 and fig. 23-26, the equipment for the rolling mill with the position adjusting structure comprises a mandrel 3, a mandrel circulating assembly line 6 and a left and right mandrel limiting and rolling device 8, wherein the left and right mandrel limiting and rolling devices 8 are arranged on a left rack and a right rack of the mandrel circulating assembly line 6.

The mandrel left-right limiting rolling device 8 comprises a left-right limiting base 81, a gear power shaft 82, a roller device 83, a transition device 84, a first guide shaft 85, a second guide shaft 87, a fourth compression spring 86, a roller device base 89 and a fifth compression spring 88, wherein the gear power shaft 82 comprises a first belt pulley 821, a gear rotating shaft 822, a gear shaft 823, a second belt pulley 824, a first belt 825 and a production line roller 826, the left-right limiting base 81 comprises a left gear shaft support frame 812, a right gear shaft support frame 811, a left guide shaft fixing plate 813 and a right guide shaft fixing plate 814, the gear rotating shaft 822 on the gear power shaft 82 is rotatably arranged on the left gear shaft support frame 812 and the right gear shaft support frame 811, the first belt pulley 821 is arranged at the left end of the gear rotating shaft 822, the gear shaft 823 is arranged at the middle position of the gear rotating shaft 822 and is arranged between the left gear shaft support frame 812 and the gear shaft support frame 811, the assembly line roller 826 is used for self-powering the rollers of all the assembly lines, the second belt pulley 824 is arranged on one side of the assembly line roller 826 and is positioned on the same plane with the first belt pulley 821 on the outer side of the assembly line frame, the first belt pulley 821 is connected with the second belt pulley 824 through the first belt 825, two ends of the first guide shaft 85 and the second guide shaft 87 are respectively arranged on the left guide shaft fixing plate 813 and the right guide shaft fixing plate 814, the roller device base 89 comprises a first guide hole 891, a second guide hole 892, a roller device connecting plate 893, a left connecting plate 894 and a top connecting plate 895, the transition device 84 comprises a transition flat gear 841, a transition flat gear shaft 842 and a first bevel gear 843, the transition flat gear shaft 842 is rotatably arranged on the left connecting plate 894, the transition flat gear 841 is arranged at the left end of the transition flat gear shaft 842, the first bevel gear 843 is arranged at the right end of the transition flat gear shaft 842, and to the right of the left side web 894, the roller device 83 includes a spacing roller 831, a spacing roller shaft 832 and a second bevel gear 833, the spacing roller shaft 832 of the roller device 83 is rotatably disposed on the upper top web 895 of the roller device base 89, the spacing roller 831 is disposed on the upper end of the spacing roller shaft 832, the second bevel gear 833 is disposed on the lower end of the spacing roller shaft 832, and is engaged with the first bevel gear 843 below the top connection plate 895, the first guide hole 891 and the second guide hole 892 of the roller device base 89 are slidably provided on the first guide shaft 85 and the second guide shaft 87, respectively, and the transition pinion shaft 842 of the transition device 84 is engaged with the pinion shaft 823 of the gear power shaft 82, the fourth compression spring 86 and the fifth compression spring 88 are respectively slidably provided on the first guide shaft 85 and the second guide shaft 87, and both ends are contacted on the right side of the left guide shaft fixing plate 813 and the left side of the roller device base 89.

Wherein can make roller device 83 can be about on spacing base 81 horizontal slip like this, and can also fall the power transmission on the assembly line and give roller device 83, make spacing gyro wheel 831 also have the rotation power, can drive plug or pipe back-and-forth movement, spacing rolling device 8 about this plug is all set up in the assembly line left and right sides, can make plug or pipe when not on the central line, spacing gyro wheel 831 through both sides draws close to the central line under compression spring's effect, can also provide power for plug or pipe, when preventing to skid at the bottom gyro wheel, continue the motion with the help of the power on spacing gyro wheel 831.

The working principle or the using method is as follows:

the left side and the right side of the assembly line are provided with the left and the right limiting rolling devices of the core rod, so that the core rod or the pipe can be drawn close to the central line under the action of the compression spring through the limiting idler wheels on the two sides when the core rod or the pipe is not on the central line.

The power on the assembly line gyro wheel can transmit through the first belt between first belt pulley and the second belt pulley to make gear power shaft have power, transmit power for first bevel gear through the meshing of gear shaft and excessive spur gear, through the meshing of first bevel gear and second bevel gear, finally transmit power for spacing gyro wheel, make spacing gyro wheel also have power, thereby when making the assembly line gyro wheel skid, spacing gyro wheel also can provide power for transporting the piece.

Example 2:

referring to fig. 1-26, the equipment for the rolling mill with the position adjusting structure comprises a first scheduling device 1, a second scheduling device 2, a mandrel 3, a blank pipe 4, a blank pipe feeding assembly line 5, a mandrel circulating assembly line 6, an assembly line mandrel locking device 7, a mandrel left and right limiting rolling device 8, a rolling mill 9, a rolling mill discharging assembly line 10, a rolling mill feeding assembly line 11 and a finished pipe 12.

The first scheduling device 1 and the second scheduling device 2 are oppositely arranged on the ground, the mandrel circulating assembly line 6 is arranged between the first scheduling device 1 and the second scheduling device 2, the center line of the mandrel circulating assembly line 6 is aligned with the right track center lines of the first scheduling device 1 and the second scheduling device 2, the position of the mandrel circulating assembly line 6 is higher than the bottom track center lines of the first scheduling device 1 and the second scheduling device 2, an assembly line mandrel locking device 7 is arranged on the left side of the mandrel circulating assembly line 6, left and right mandrel left and right limiting rolling devices 8 are arranged on a left rack and a right rack, a neutral gear with the length larger than a finished product pipe 12 and smaller than a mandrel 3 is arranged in the middle of the right side, and the neutral gear is an outflow port of the finished product pipe 12.

When the core rod 3 is pressed against the assembly line core rod locking device 7, and the assembly line core rod locking device 7 locks the right groove of the core rod 3, the left groove on the core rod 3 is aligned with the left guide projection 233 and the right guide projection 234 on the scheduling limiting device 23 on the first scheduling device 1, so that the scheduling limiting device 23 can accurately lock the core rod 3 when moving upwards, and the core rod 3 is driven to move upwards by the scheduling limiting device.

The blank pipe feeding assembly line 5 is positioned right above the mandrel circulating assembly line 6, the height position of the blank pipe feeding assembly line is lower than the upper track of the first dispatching device, the distance between the leftmost roller of the blank pipe feeding assembly line 5 and the first dispatching device 1 is larger than the length of the mandrel 3, and a left and right mandrel limiting rolling device 8 is arranged on the left rack.

Wherein, the left side of the blank pipe feeding assembly line 5 is provided with an inductive switch, when the core rod 3 moves upwards to the pipe feeding position, the assembly line is started, and the blank pipe 4 on the assembly line is sleeved on the core rod 3.

The rolling mill 9, the rolling mill outlet assembly line 10 and the rolling mill inlet assembly line 11 are positioned on the same central line and are positioned between the first scheduling device 1 and the second scheduling device 2, the rolling mill 9 is positioned in the middle, the rolling mill outlet assembly line 10 is positioned at the right side of the rolling mill 9 and is matched with the second scheduling device 2, the rolling mill inlet assembly line 11 is positioned at the left side of the rolling mill 9 and is matched with the first scheduling device 1, and the central lines of the rolling mill 9, the rolling mill outlet assembly line 10 and the rolling mill inlet assembly line 11 are aligned with the central lines of the left side rails of the first dispatching device 1 and the second dispatching device 2, the height positions of the rolling mill outlet assembly line 10 and the rolling mill inlet assembly line 11 are the same, and in the middle of the upper and lower guide rails of the first dispatching device 1, the rolling center line of the rolling mill 9 is aligned with the center lines of the mandrels 3 transported by the rolling mill outlet assembly line 10 and the rolling mill inlet assembly line 11, and the right side of the rolling mill outlet assembly line 10 is provided with an assembly line mandrel locking device 7 and a mandrel left and right limiting rolling device 8.

When the core rod 3 is pressed against the assembly line core rod locking device 7, and the assembly line core rod locking device 7 locks the left groove of the core rod 3, the right groove on the core rod 3 is aligned with the left guide projection 233 and the right guide projection 234 on the scheduling limiting device 23 on the second scheduling device 2, so that the scheduling limiting device 23 can accurately lock the core rod 3 when moving upwards, and the core rod 3 is driven to move upwards by the scheduling limiting device.

The core rod 3 comprises a core rod rotating shaft 31, a core rod sleeve 32, a first dividing outer ring 33, a second dividing outer ring 34, a third dividing outer ring 35, a fourth dividing outer ring 36, a fifth dividing outer ring 37, a sixth dividing outer ring 38 and a tension spring 39, the first dividing outer ring 33, the second dividing outer ring 34, the third dividing outer ring 35, the fourth dividing outer ring 36, the fifth dividing outer ring 37 and the sixth dividing outer ring 38 respectively comprise an outer ring guide post 331, an outer ring limit ring 332, an outer ring top ball 333 and a first tension spring ring 334, the core rod rotating shaft 31 comprises a first flat gear 311, a right limit spherical groove 312, a rotating shaft 313, a middle groove 314, a middle spherical groove 315, a second flat gear 316 and a left limit spherical groove 317, the core rod sleeve 32 comprises a right shaft sleeve 321, a right side groove 322, a sleeve 323, an outer ring guide post hole 324, a second tension spring ring 325, a left shaft sleeve 326, a left side groove 329, a first core rod locking hole 327 and a second core rod locking hole 328, a rotating shaft 313 on the mandrel rotating shaft 31 is rotatably arranged in a central hole of the mandrel sleeve 32, 6 right limiting spherical grooves 312, a middle spherical groove 315 and a left limiting spherical groove 317 on the mandrel rotating shaft 31 are uniformly arranged on the diameter of the same height, 6 outer ring guide holes 324, a second tension spring ring 325, a first mandrel locking hole 327 and a second mandrel locking hole 328 on the mandrel sleeve 32 are uniformly arranged on the diameter of the same height, an outer ring guide hole 331 on a first divided outer ring 33, a second divided outer ring 34, a third divided outer ring 35, a fourth divided outer ring 36, a fifth divided outer ring 37 and a sixth divided outer ring 38 is slidably connected on the outer ring guide hole 324 on the mandrel sleeve 32, the diameter of the outer ring guide hole 324 is slightly larger than that of the outer ring guide post 331, an outer ring top ball 333 is pressed against the middle groove 314, two ends of a tension spring 39 are respectively connected on the second tension spring ring 325 and a tension spring ring 334, the cross-sectional shape of the outer ring part of the first split outer ring 33 is small outside and large inside, and is in a convex shape, the right side surface of the second split outer ring 34 is in contact with the left side surface of the first split outer ring 33, the cross-sectional shape is large outside and small inside, the left side surface of the third split outer ring 35 is in contact with the right side surface of the first split outer ring 33, the cross-sectional shape is large outside and small inside, the rest of the fourth split outer ring 36, the fifth split outer ring 37 and the sixth split outer ring 38 are divided uniformly, the right side of the fourth split outer ring 36 is in contact with the left side of the second split outer ring 34, the right side of the fifth split outer ring 37 is in contact with the left side of the fourth split outer ring 36, the sixth split outer ring 38 is in contact with the left side of the fifth split outer ring 37.

When the outer ring jacking ball 333 is jacked on the middle groove 314, the outer ring limiting ring 332 is jacked on the inner wall of the mandrel sleeve 32, the first split outer ring 33, the second split outer ring 34, the third split outer ring 35, the fourth split outer ring 36, the fifth split outer ring 37 and the sixth split outer ring 38 are mutually jacked, at the moment, the whole mandrel 3 is in a tensioning state, and when the outer diameter is maximum, the mandrel rotating shaft 31 is rotated, so that the outer ring jacking ball 333 is jacked on the middle spherical groove 315 under the action of the tension spring 39, at the moment, the first split outer ring 33 slides downwards, so that the outer ring has a mouth, because the diameter of the outer ring guide post hole 324 is slightly larger than that of the outer ring guide post 331, and because all the split outer rings are connected with the tension spring 29, the second split outer ring 34, the third split outer ring 35, the fourth split outer ring 36, the fifth split outer ring 37 and the sixth split outer ring 38 incline towards the first split outer ring 33, the outer diameter of the entire mandrel 3 becomes small, so that the mandrel can be easily taken out after the steel pipe is rolled.

The right shaft sleeve 321 and the left shaft sleeve 326 of the core rod sleeve 32 include a first spring hole 3211, a first compression spring 3212 and a first ball 3213 therein, two ends of the first compression spring 3212 are respectively pressed at the bottom of the first spring hole 3211 and the surface of the first ball 3213, the first ball 3213 is pressed at the surface of the rotating shaft 313 of the core rod rotating shaft 31, the relative position of the first spring hole 3211 and the outer ring guide post hole 324 form an included angle of 30 degrees, and the relative positions of the right limit spherical groove 312, the middle spherical groove 315 and the left limit spherical groove 317 on the core rod rotating shaft 31 are on the same axis.

Therefore, the core rod 3 can be in a tensioning state and can have a locking point, so that the core rod cannot be unlocked and tensioned randomly.

First scheduling device 1 includes annular guide rail 21, the chain 22, rack plate 24, dispatch stop device 23, sprocket 25, motor 26 and dispatch base 27, sprocket 25 sets up on motor 26, motor 26 and annular guide rail 21 set up on dispatch base 27, sprocket 25 is connected with the cooperation of chain 22, annular guide rail 21 is including U style of calligraphy annular track 212 and annular shrouding 213, chain 22 slides and sets up in U style of calligraphy annular track 212 of annular guide rail 21, chain 22 includes extension shaft 221, annular shrouding 213 sets up on the opening of U style of calligraphy annular track 212, be provided with the slide track groove of extension shaft 221 on annular shrouding 213, rack plate 24 sets up the position under the upper portion of annular guide rail 21, dispatch stop device 23 rotates and connects on the extension shaft 221 of chain 22 package.

The scheduling limiting device 23 includes a first rotating hole 231, a first notch 232, a left guiding protrusion 233, a right guiding protrusion 234, a second compression spring 235 and a second marble 236, wherein the middle positions of the left guiding protrusion 233 and the right guiding protrusion 234 are respectively provided with a second spring hole 237, two ends of the second compression spring 235 are respectively pressed and contacted with the bottom of the second spring hole 237 and the surface of the second marble 236, the size of the first notch 232 is consistent with that of a right shaft sleeve 321 and a left shaft sleeve 326 on the core rod 3, and the left guiding protrusion 233 and the right guiding protrusion 234 can be connected with a right groove 322 and a left groove 329 on the core rod 3 in a matching manner.

When the right shaft sleeve 321 or the left shaft sleeve 326 on the mandrel 3 is matched and connected in the first notch 232 on the scheduling limiting device 23, the left guide bump 233 and the right guide bump 234 on the scheduling limiting device 23 clamp the right groove 322 or the left groove 329 on the mandrel 3, the second marble 236 on the scheduling limiting device 23 is abutted against the first mandrel locking hole 327 or the second mandrel locking hole 328 on the mandrel 3, so that the mandrel 3 is locked on the scheduling limiting device 23, the mandrel 3 is statically locked at the left side of the mandrel circulating water line 6, the scheduling limiting device 23 on the first scheduling device 1 rotates along with the chain, clockwise moves around the annular guide rail 21, the mandrel 3 is clamped upwards, the mandrel 3 is locked, the mandrel 3 clockwise moves around the annular guide rail 21 along with the scheduling limiting device 23, when the position height of the blank tube feeding water line 5 is reached, triggering the inductive switch, starting the piping assembly line 5, sleeving the blank tube 4 on the assembly line on the mandrel 3, triggering the detection switch after sleeving the blank tube 4 on the mandrel 3, driving the mandrel 3 and the blank tube 4 to move clockwise along the annular guide rail 21 by the scheduling limiting device 23, when the blank tube 4 moves above the annular track, engaging the first pinion 311 on the mandrel 3 with the rack plate 24 on the first scheduling device 1, because the mandrel moves clockwise along the annular guide rail 21 at the moment, the rack plate 24 is fixedly arranged on the annular guide rail 21, so that the two move relatively, and the first pinion 311 rotates, thereby realizing the relative rotation of the mandrel rotating shaft 31 and the mandrel sleeve 32 of the mandrel 3, and when the outer ring jacking ball 333 on the mandrel 3 is jacked on the middle groove 314, the outer ring limiting ring 332 is jacked on the inner wall of the mandrel sleeve 32, and the outer ring 33 of the first split outer ring 33, The second outer dividing ring 34, the third outer dividing ring 35, the fourth outer dividing ring 36, the fifth outer dividing ring 37 and the sixth outer dividing ring 38 are mutually butted, and the whole core rod 3 is in a tensioning state.

The production line mandrel locking device 7 comprises a left fixing plate 71, a right fixing plate 72, a locking device roller 73, a locking bridge 74, a third compression spring 75 and a square shaft locking frame 76, wherein the locking device roller 73 is rotatably arranged at the right end of the locking bridge 74, the square shaft locking frame 76 comprises an annular buckle 761, a square shaft 762 and a square shaft limiting plate 762, the locking bridge 74 comprises a left bridge plate 741, a right bridge plate 742, a bridge plate connecting plate 743, a square guide hole 744 and a bridge rotating rod 745, the square shaft 762 of the square shaft locking frame 76 is slidably arranged in the square guide hole 744 of the locking bridge 74, the third compression spring 75 is slidably arranged on the square shaft 762, the two ends of the square shaft locking bracket 76 respectively contact the upper surface of the bridge plate connecting plate 743 and the lower surface of the annular buckle 761, the upper surface of the square shaft limiting plate 762 on the square shaft locking bracket 76 contacts the lower surface of the bridge plate connecting plate 743, and the left fixing plate 71 and the right fixing plate 72 are respectively rotatably arranged on the left side and the right side of the bridge frame rotating rod 745.

When the mandrel 3 is pressed against the locking device roller 73, the other end of the locking bridge 74 tilts upwards under the action of the lever, the square shaft locking frame 76 abuts against the mandrel 3, the square shaft locking frame 76 is compressed downwards under the action of the third compression spring 75, when the mandrel 3 moves to the locking position, the square shaft locking frame 76 is aligned with the left groove 329 or the right groove 322 on the mandrel 3, and at the moment, under the action of the third compression spring 75, the annular buckle 761 on the square shaft locking frame 76 slides into the left groove 329 or the right groove 322 on the mandrel 3, so that the mandrel 3 cannot move continuously, and the effect of locking the mandrel 3 is achieved.

The mandrel left-right limiting rolling device 8 comprises a left-right limiting base 81, a gear power shaft 82, a roller device 83, a transition device 84, a first guide shaft 85, a second guide shaft 87, a fourth compression spring 86, a roller device base 89 and a fifth compression spring 88, wherein the gear power shaft 82 comprises a first belt pulley 821, a gear rotating shaft 822, a gear shaft 823, a second belt pulley 824, a first belt 825 and a production line roller 826, the left-right limiting base 81 comprises a left gear shaft support frame 812, a right gear shaft support frame 811, a left guide shaft fixing plate 813 and a right guide shaft fixing plate 814, the gear rotating shaft 822 on the gear power shaft 82 is rotatably arranged on the left gear shaft support frame 812 and the right gear shaft support frame 811, the first belt pulley 821 is arranged at the left end of the gear rotating shaft 822, the gear shaft 823 is arranged at the middle position of the gear rotating shaft 822 and is arranged between the left gear shaft support frame 812 and the gear shaft support frame 811, the assembly line roller 826 is used for self-powering the rollers of all the assembly lines, the second belt pulley 824 is arranged on one side of the assembly line roller 826 and is positioned on the same plane with the first belt pulley 821 on the outer side of the assembly line frame, the first belt pulley 821 is connected with the second belt pulley 824 through the first belt 825, two ends of the first guide shaft 85 and the second guide shaft 87 are respectively arranged on the left guide shaft fixing plate 813 and the right guide shaft fixing plate 814, the roller device base 89 comprises a first guide hole 891, a second guide hole 892, a roller device connecting plate 893, a left connecting plate 894 and a top connecting plate 895, the transition device 84 comprises a transition flat gear 841, a transition flat gear shaft 842 and a first bevel gear 843, the transition flat gear shaft 842 is rotatably arranged on the left connecting plate 894, the transition flat gear 841 is arranged at the left end of the transition flat gear shaft 842, the first bevel gear 843 is arranged at the right end of the transition flat gear shaft 842, and to the right of the left side web 894, the roller device 83 includes a spacing roller 831, a spacing roller shaft 832 and a second bevel gear 833, the spacing roller shaft 832 of the roller device 83 is rotatably disposed on the upper top web 895 of the roller device base 89, the spacing roller 831 is disposed on the upper end of the spacing roller shaft 832, the second bevel gear 833 is disposed on the lower end of the spacing roller shaft 832, and is engaged with the first bevel gear 843 below the top connection plate 895, the first guide hole 891 and the second guide hole 892 of the roller device base 89 are slidably provided on the first guide shaft 85 and the second guide shaft 87, respectively, and the transition pinion shaft 842 of the transition device 84 is engaged with the pinion shaft 823 of the gear power shaft 82, the fourth compression spring 86 and the fifth compression spring 88 are respectively slidably provided on the first guide shaft 85 and the second guide shaft 87, and both ends are contacted on the right side of the left guide shaft fixing plate 813 and the left side of the roller device base 89.

Wherein can make roller device 83 can be about on spacing base 81 horizontal slip like this, and can also fall the power transmission on the assembly line and give roller device 83, make spacing gyro wheel 831 also have the rotation power, can drive plug or pipe back-and-forth movement, spacing rolling device 8 about this plug is all set up in the assembly line left and right sides, can make plug or pipe when not on the central line, spacing gyro wheel 831 through both sides draws close to the central line under compression spring's effect, can also provide power for plug or pipe, when preventing to skid at the bottom gyro wheel, continue the motion with the help of the power on spacing gyro wheel 831.

The difference is that the device also comprises a first dispatching device 1, a second dispatching device 2, a mandrel 3, a blank pipe 4, a blank pipe feeding assembly line 5, an assembly line mandrel locking device 7, a rolling mill 9, a rolling mill discharging assembly line 10, a rolling mill feeding assembly line 11 and a finished pipe 12.

The working principle or the using method is as follows:

firstly, when the mandrel 3 is in an unlocked state, the mandrel 3 is horizontally laid on the mandrel circulating assembly line 6 and moves towards the first dispatching device 1 on the mandrel circulating assembly line 6, firstly, the mandrel 3 is adjusted to a central position through the left and right mandrel limiting rolling devices 8 arranged on the left and right sides of the mandrel circulating assembly line 6, then the mandrel 3 is pressed and contacted with the locking device roller 73 on the mandrel locking device 7 of the assembly line, under the action of a lever, the other end of the locking bridge 74 is tilted upwards, the square shaft locking frame 76 is propped against the outer ring of the mandrel 3, the square shaft locking frame 76 is compressed downwards by the third compression spring 75, at the moment, the mandrel 3 continues to move, when the mandrel 3 moves to a locking position, at the moment, the square shaft locking frame 76 is aligned with the right groove 322 on the mandrel 3, at the moment, under the action of the third compression spring 75, the annular buckle 761 on the square shaft locking frame 76 slides into the, so that the mandrel 3 cannot move continuously, at this time, the left side groove 329 on the mandrel 3 is aligned with the left guide bump 233 and the right guide bump 234 on the scheduling limiting device 23 on the first scheduling device 1, at this time, the sensor on the first scheduling device 1 receives a signal, the motor 26 is turned on, the chain starts to rotate, the scheduling limiting device 23 rotates along with the chain, the mandrel 3 moves clockwise around the annular guide rail 21, the mandrel 3 enters the locking position from the upper end opening of the scheduling limiting device 23, the mandrel 3 is clamped, the mandrel 3 is locked, the mandrel 3 moves clockwise around the annular guide rail 21 along with the scheduling limiting device 23, when the position of the blank tube feeding assembly line 5 is reached, the induction switch is triggered, the tubing assembly line 5 is started, the blank tube 4 on the assembly line is sleeved on the mandrel 3, and when the blank tube 4 is completely sleeved on the mandrel 3, the detection switch is triggered, the dispatching and limiting device 23 drives the mandrel 3 and the blank tube 4 to move clockwise along the annular guide rail 21, when the mandrel is moved above the annular track, the second flat gear 316 on the mandrel 3 is meshed with the rack plate 24 on the first dispatching device 1, because the mandrel is moving clockwise along the annular guide rail 21 at this time, the rack plate 24 is fixedly arranged on the annular guide rail 21, and the two move relatively, so that the second flat gear 316 rotates, the mandrel rotating shaft 31 of the mandrel 3 and the mandrel sleeve 32 rotate relatively, the outer ring jacking ball 333 on the mandrel 3 is propped against the middle groove 314, the outer ring limiting ring 332 is propped against the inner wall of the mandrel sleeve 32, the first outer dividing ring 33, the second outer dividing ring 34, the third outer dividing ring 35, the fourth outer dividing ring 36, the fifth outer dividing ring 37 and the sixth outer dividing ring 38 are mutually propped against each other, and the whole mandrel 3 is in a tensioned state, the core rod is in a locked state at this time.

And then the mandrel 3 continues to move clockwise around the annular guide rail 21 along with the dispatching limiting device 23, when the mandrel 3 contacts the rolling mill feeding assembly line 11, the dispatching limiting device 23 continues to move clockwise, and the mandrel 3 is pressed on the rolling mill feeding assembly line 11, so that the mandrel 3 leaves from the upper end opening of the dispatching limiting device 23, the mandrel 3 is unlocked, and the mandrel 3 can move in the rolling mill feeding assembly line 11.

Then the mandrel 3 drives the blank tube 4 to move in the rolling mill assembly line 11, firstly the mandrel 3 is adjusted to the central position through a mandrel left and right limiting rolling device 8 arranged on the left and right of the rolling mill assembly line 11, then the mandrel 3 drives the blank tube 4 to enter the rolling mill 9 to perform the rolling work of the pipeline, the mandrel 3 flows out of the rolling mill assembly line 10 together after the rolling is finished, firstly the mandrel 3 is adjusted to the central position through the mandrel left and right limiting rolling device 8 arranged on the left and right of the rolling mill assembly line 10, then the mandrel 3 is pressed and contacted with a locking device roller 73 on the mandrel locking device 7 of the assembly line, under the action of a lever, the other end of the locking bridge 74 tilts upwards, a square shaft locking frame 76 is pressed against the outer ring of the mandrel 3, the square shaft locking frame 76 is compressed downwards by a third compression spring 75, at the moment, the mandrel 3 continues to move, at the moment, when the mandrel 3 moves to the locking position, the, at this time, under the action of the third compression spring 75, the annular buckle 761 on the square shaft locking bracket 76 slides into the left side groove 329 on the mandrel 3, so that the mandrel 3 cannot move any further, at this time, the 3 right side groove 322 on the mandrel is aligned with the left guide projection 233 and the right guide projection 234 on the scheduling stop device 23 on the second scheduling device 2, at this time, the sensor on the second scheduling device 2 receives a signal, the motor is turned on, the chain starts to rotate, the scheduling stop device 23 rotates along with the chain, clockwise moves around the annular rail 21, the mandrel 3 enters a locking position from the upper end opening of the scheduling stop device 23, and is clamped with the mandrel 3, so that the mandrel 3 is locked, so that the mandrel 3 follows the scheduling stop device 23 to move clockwise around the annular rail 21, when moving above the annular rail, the first flat gear 311 on the mandrel 3 is engaged with the rack plate 24 on the second scheduling device 2, since the mandrel is now moving clockwise along the ring rail 21, the rack plate 24 is fixedly arranged on the ring rail 21, so that the two move relatively to each other, and the first flat gear 311 rotates, so that the mandrel rotating shaft 31 of the mandrel 3 and the mandrel sleeve 32 rotate relatively to each other, the outer ring pushing ball 333 is pushed against the middle spherical groove 315 by the tension spring 39, at this time, the first outer ring 33 slides downwards, so that the outer ring forms a notch, because the diameter of the outer ring guide post hole 324 is slightly larger than that of the outer ring guide post 331, and because all the divided outer rings are connected with the tension springs 29, therefore, the second split outer ring 34, the third split outer ring 35, the fourth split outer ring 36, the fifth split outer ring 37, and the sixth split outer ring 38 are all inclined toward the first split outer ring 33, so that the outer diameter of the entire mandrel 3 becomes small, and the mandrel 3 is in the unlocked state.

Then the core rod 3 carries the finished product pipe 12 to continue to move clockwise around the annular guide rail 21 along with the dispatching limiting device 23, when the core rod 3 and the finished product pipe 12 contact the core rod circulating assembly line 6, the induction switch is pressed to enable the second dispatching device 2 to stop running, at the moment, the core rod circulating assembly line 6 is started, because the core rod 3 is in an unlocking state at the moment, the outer diameter of the core rod 3 is reduced, the finished product pipe 12 can be easily separated from the core rod 3, at the moment, the core rod 3 is also locked on the dispatching limiting device 23, the finished product pipe 12 contacts a rotating roller on the core rod circulating assembly line 6, under the action of the rotating roller and a core rod left and right limiting rolling device 8, the finished product pipe 12 is separated from the core rod 3, because a hollow block with the length larger than the length of the finished product pipe 12 and smaller than the core rod 3 is arranged in the middle of the right side of the core rod, when the finished product pipe 12 passes through the neutral gear, the finished product pipe slides downwards to achieve the purpose of automatic discharging, the inductive switch is triggered in the sliding process, so that the second scheduling device 2 continues to operate, the scheduling limiting device 23 continues to move clockwise, and the core rod 3 is pressed on the core rod circulating assembly line 6, so that the core rod 3 leaves from an upper end opening of the scheduling limiting device 23, the core rod 3 is unlocked, the core rod 3 can move on the core rod circulating assembly line 6, the core rod 3 automatically returns to an initial state, and an automatic cycle is achieved.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.