CN111823016B - Production line for manufacturing stainless steel welded pipe - Google Patents
Production line for manufacturing stainless steel welded pipe Download PDFInfo
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- CN111823016B CN111823016B CN202010586077.7A CN202010586077A CN111823016B CN 111823016 B CN111823016 B CN 111823016B CN 202010586077 A CN202010586077 A CN 202010586077A CN 111823016 B CN111823016 B CN 111823016B
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- bevel gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
Abstract
The invention relates to the technical field of welded pipe production, and discloses a production line for manufacturing stainless steel welded pipes, which comprises a rack and a leveling unit arranged on the rack, wherein the leveling unit comprises two groups of extrusion rollers which are arranged on the rack and used for extruding and leveling welding seams, the two groups of extrusion rollers are sequentially arranged along the feeding direction of a stainless steel pipe, the extrusion rollers are rotationally connected with the rack, the axes of the extrusion rollers are inclined, the two groups of extrusion rollers are vertically arranged, and the inclination angles of the two groups of extrusion rollers are complementary. The invention has the effects of good pertinence of welding seam leveling processing, high quality of extrusion leveling and high quality of finished welded pipes.
Description
Technical Field
The invention relates to the technical field of welded pipe production, in particular to a production line for manufacturing stainless steel welded pipes.
Background
Welded steel pipes, also known as welded pipes, are steel pipes formed by crimping steel plates or strip steel and then welding the steel pipes.
The prior patent document with the application publication number of CN109877537A discloses a production process of a stainless steel pipe, which comprises the following steps: conveying the uncoiled stainless steel plate to a forming machine, and processing the stainless steel plate into a stainless steel pipe with a to-be-welded opening at a bus through the forming machine; welding the to-be-welded opening, and cooling by using protective gas during welding; leveling the welded stainless steel pipe by using a leveling machine to level the welding line; carrying out solid solution cooling on the stainless steel pipe after the welding seam is leveled; sizing and straightening the stainless steel pipe after the solid solution cooling so as to enable the stainless steel pipe to meet the production standard; and (3) carrying out online flaw detection on the straightened stainless steel pipe by using an eddy current flaw detector, sawing the stainless steel pipe with the composite quality after flaw detection, cutting the stainless steel pipe into a finished product, and conveying the cut finished product into a finished product rack.
The above prior art solutions have the following drawbacks: the existing leveling machine extrudes a workpiece through an upper roller and a lower roller with horizontal axes, so that the leveling effect is realized. At the moment, the cross section of the stainless steel pipe is circular, the welding line is arc-shaped, the bending direction of the welding line faces to the axis of the stainless steel pipe, the leveling effect of the vertical extrusion welding line is poor, and the quality of the finished stainless steel pipe is directly influenced.
Disclosure of Invention
In view of the defects of the prior art, one of the purposes of the invention is to provide a production line for manufacturing stainless steel welded pipes, which has the effect of high weld leveling quality.
The above object of the present invention is achieved by the following technical solutions: the utility model provides a make production line of stainless steel welded tube, includes the frame, still including setting up the flattening unit in the frame, the flattening unit is including setting up the squeeze roll that is used for extrudeing the flattening welding seam in the frame, the quantity of squeeze roll is two sets of and sets up along stainless steel pipe feed direction order, squeeze roll and frame swivelling joint and axis slope, every group the quantity of squeeze roll is two and vertical range setting, and is two sets of the inclination of squeeze roll is complementary.
Through adopting above-mentioned technical scheme, when the nonrust steel pipe passes from between the squeeze roll, the squeeze roll is rotatory along with the feeding of nonrust steel pipe, and the protruding both ends of butt weld are extrudeed the flattening respectively to the squeeze roll of two sets of slopes, and the pertinence of extrusion flattening is strong, and the flattening quality is high.
The present invention in a preferred example may be further configured to: the frame is also provided with an uncoiling unit, a forming unit, a welding unit, a reprocessing unit and a cutting unit, wherein the uncoiling unit, the forming unit, the welding unit, the leveling unit, the reprocessing unit and the cutting unit are sequentially arranged along the feeding direction of the stainless steel pipe.
Through adopting above-mentioned technical scheme, the user expandes the corrosion resistant plate of lapping through opening a book the unit, is the corrosion resistant plate processing through the shaping unit and exists the nonrust steel pipe of waiting to weld the mouth in top generating line department, welds the nonrust steel pipe through the welding unit and seals to waiting to weld the mouth, through flattening unit flattening welding seam, through reprocessing processing before the processing unit cools off, cutting such as alignment to the nonrust steel pipe again, through cutting unit cutting nonrust steel pipe to realize the production of nonrust steel welded pipe.
The present invention in a preferred example may be further configured to: the flattening unit is still including setting up the subassembly of polishing that is used for polishing the flattening welding seam in the frame, the quantity of the subassembly of polishing is three and sets up between squeeze roll and reprocessing unit in proper order, the subassembly of polishing includes the grinding roller and the backing roll that vertical range set up, grinding roller and backing roll all with frame swivelling joint, are close to the equal slope of the grinding roller of two sets of subassemblies of polishing of squeeze roll sets up and the inclination is complementary, is close to the axis level of reprocessing unit's the roller of polishing.
Through adopting above-mentioned technical scheme, when nonrust steel pipe passed the clearance between grinding roller and the backing roll, nonrust steel pipe is difficult to skew feeding path because of the support of backing roll, and the flattening of polishing is ground to the prominent both ends of welding seam respectively to the grinding roller of two slopes, and the horizontal grinding roller is further refined the welding seam, and the pertinence of the flattening of polishing is strong, and the area of contact of polishing is sufficient, extrudees the flattening and the flattening combined action of polishing, and the effect of welding seam flattening further improves.
The present invention in a preferred example may be further configured to: and a polishing sleeve made of frosted sponge is sleeved on the polishing roller close to the reprocessing unit, and the bending degree of a bus of the polishing sleeve is matched with the bending degree of the periphery of the stainless steel pipe.
Through adopting above-mentioned technical scheme, the cover of polishing makes the area of contact increase when polishing the finish for the last time, and the flexibility of dull polish sponge makes the phenomenon of transition polishing difficult to take place, and the effect of polishing is better in the weld truing, and the damage probability of nonrust steel pipe reduces.
The present invention in a preferred example may be further configured to: the grinding machine is characterized in that an interval frame is arranged on the machine frame corresponding to the grinding assembly, the interval frame is connected with the machine frame in a sliding mode along the connecting line direction of a grinding roller and a supporting roller of the corresponding grinding assembly, the grinding roller is connected onto the interval frame in a rotating mode, a grinding motor used for driving the grinding roller to rotate is arranged on the interval frame, and an interval mechanism used for controlling the interval frame to slide is arranged on the interval frame.
By adopting the technical scheme, a user drives the grinding roller to rotate in a state opposite to the feeding direction of the stainless steel pipe through the grinding motor, and the distance between the grinding roller and the supporting roller is adjusted through the distance mechanism, so that the pressing force between the grinding roller and the stainless steel pipe is adjusted.
The present invention in a preferred example may be further configured to: the spacing mechanism comprises a spacing screw rod which is rotationally connected with the spacing frame, the axis of the spacing screw rod is parallel to the sliding direction of the spacing frame, the spacing frame is in threaded connection with the frame, a transmission worm is coaxially connected on a rotating shaft of the spacing screw rod, a transmission worm wheel meshed with the transmission worm is rotatably connected on the spacing frame, a switching seat is connected on the spacing frame in a sliding way along the direction parallel to the axial direction of the grinding roller, the polishing motor is fixed on the switching seat, the axial direction of the output end of the polishing motor is parallel to the axial direction of the spacing screw rod, an output bevel gear is fixedly arranged on the output end of the polishing motor, a high-speed bevel gear is fixedly arranged on the rotating shaft of the polishing roller corresponding to the output bevel gear, the rotating shaft of the transmission worm is fixedly provided with a low-speed bevel gear corresponding to the output bevel gear, and the spacing frame is provided with a switching component for fixing the position of the switching seat when the switching seat slides to the position where the output bevel gear is meshed with the low-speed bevel gear or the high-speed bevel gear.
Through adopting above-mentioned technical scheme, under the normality, high-speed bevel gear and output bevel gear meshing, the slip position of interval frame is fixed because of screw thread auto-lock nature and worm gear meshed auto-lock nature, user's accessible grinding motor drives the grinding roller rotatory, when needing to change the interval between grinding roller and the backing roll, the displacement switches the seat and meshes to output bevel gear and low-speed bevel gear, it is rotatory to drive low-speed bevel gear and drive worm wheel when output bevel gear is rotatory, and then it is rotatory to drive transmission worm and interval screw rod, it slides to drive interval frame, grinding motor is as the power supply that interval frame slided and grinding roller rotated simultaneously, grinding motor's high-usage, the running cost of this production line reduces.
The present invention in a preferred example may be further configured to: the outer diameters of the high-speed bevel gear, the output bevel gear and the low-speed bevel gear are sequentially increased in an increasing mode.
Through adopting above-mentioned technical scheme, grinding motor can satisfy the drive demand of the high-speed rotation of roller of polishing and interval screw rod low-speed rotation simultaneously, and grinding motor need not to choose for use variable speed motor, and use cost and control cost reduce, and it is more convenient to use.
The present invention in a preferred example may be further configured to: the switching assembly comprises a locking bolt which is in threaded connection with the switching seat, the locking bolt penetrates through the switching seat along the axial direction, and a stroke hole for inserting the locking bolt is formed in the spacing frame.
Through adopting above-mentioned technical scheme, manual displacement switches the seat and spacing the slip control that can realize switching the seat through the gomphosis in locking bolt and stroke hole, easy operation and control are effectual.
The present invention in a preferred example may be further configured to: the spacing frame is fixedly provided with a guide rod which is in sliding connection with the rack, a spacing scale groove is axially arranged on the guide rod, the rack is fixedly provided with a reference ring, and the reference ring is sleeved on the guide rod.
Through adopting above-mentioned technical scheme, user's accessible reference ring carries out the reading to interval scale groove with the coincidence situation in interval scale groove, and then can acquire the interval change volume between backing roll and the roller of polishing, and it is more convenient to adjust the interval between backing roll and the roller of polishing.
The present invention in a preferred example may be further configured to: and a blower for cooling the stainless steel pipe and blowing away dust is arranged beside the grinding assembly.
Through adopting above-mentioned technical scheme, the hair-dryer can carry out the forced air cooling to the point of polishing, blows away the abrasive dust simultaneously, and the quality of polishing is difficult for reducing because of the interference of abrasive dust and the point of polishing high temperature.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the two groups of inclined extrusion rollers respectively perform extrusion leveling on two ends of the weld joint protrusion, so that the pertinence of the extrusion leveling is strong, and the leveling quality is high;
2. the extrusion leveling of the extrusion roller and the polishing of the polishing component have combined action, the dual-way composite leveling effect is good, and the leveling quality is high;
3. the grinding motor is simultaneously used as a driving source for adjusting the distance between the grinding roller and the supporting roller, the utilization rate of the grinding motor is high, and the use cost of the production line is low.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment.
Fig. 2 is a schematic structural diagram of a flattening unit according to an embodiment.
Figure 3 is a schematic diagram of a sanding assembly according to an exemplary embodiment.
FIG. 4 is a schematic diagram of a spacing mechanism according to an embodiment.
Fig. 5 is a schematic structural view of a guide rod according to an embodiment.
In the figure, 1, a frame; 11. an uncoiling unit; 12. a molding unit, 13 and a welding unit; 14. a reprocessing unit; 15. a cutting unit; 2. a leveling unit; 21. a squeeze roll; 22. polishing the assembly; 221. grinding a roller; 222. a support roller; 23. a blower; 231. a blowing nozzle; 3. polishing the sleeve; 4. a spacing frame; 41. a guide bar; 411. a spacing scale groove; 412. a reference ring; 5. a spacing mechanism; 51. a spacing screw; 52. a drive worm; 53. a drive worm gear; 54. a low speed bevel gear; 6. a switching seat; 61. polishing the motor; 611. an output bevel gear; 7. a high-speed bevel gear; 8. a switching component; 81. locking the bolt; 82. and a travel hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the production line for manufacturing stainless steel welded pipes disclosed by the invention comprises a frame 1, and further comprises an uncoiling unit 11, a forming unit 12, a welding unit 13, a leveling unit 2, a reprocessing unit 14 and a cutting unit 15 which are sequentially arranged on the frame 1 along the feeding direction of a stainless steel pipe, wherein the stainless steel pipe is fed on the frame 1 in a state that a bus is horizontal. The unwinding unit 11 is used to unwind the coiled stainless steel sheet and convey it to the forming unit 12. The forming unit 12 is used for forming and processing a stainless steel plate, so that the stainless steel plate is bent into a stainless steel pipe with a to-be-welded opening at the top bus. The welding unit 13 is used for welding and sealing the to-be-welded opening, the welding mode is argon arc welding, and inert gas is used for shielding during welding. The reprocessing unit 14 is used for solution cooling the stainless steel tube, and in another embodiment, the reprocessing unit 14 is further used for performing secondary forming processing and straightening processing on the stainless steel tube, and the cross section of the finished stainless steel tube is square.
Referring to fig. 2, the flattening unit 2 is used to flatten a bead, and the flattening unit 2 includes a pressing roller 21 for pressing the flattened bead and a grinding assembly 22 for grinding the flattened bead. The number of the extrusion rollers 21 is two, the number of the grinding assemblies 22 is three, and the two extrusion rollers 21 and the three grinding assemblies 22 are sequentially arranged on the machine frame 1 along the feeding direction of the stainless steel pipe. The blower 23 is arranged beside the grinding component 22, the frame 1 is fixedly provided with air blowing nozzles 231 corresponding to the grinding component 22, and the three air blowing nozzles 231 are simultaneously connected with the output end of the blower 23 through a pipeline.
Through the structure, the welding seam can be firstly flattened by extrusion and then polished, and the welding seam is processed in multiple ways, so that the flattening quality of the welding seam is high, and the finished product quality of the stainless steel pipe is high. When the grinding assembly 22 grinds the welding seam, the air flow generated by the blower 23 flows out of the air blowing nozzle 231 and is in contact with the grinding point, so that the temperature of the grinding point is effectively reduced, and meanwhile, the abrasive dust is blown away. The grinding dust is not easy to influence the grinding quality, and the temperature of a grinding point is not easy to be high so as to influence the grinding quality.
Referring to fig. 2, the number of each set of the pressing rolls 21 is two, the two pressing rolls 21 of the same set are arranged vertically, and the stainless steel pipe passes through a gap between the two pressing rolls 21 of the same set. The squeezing rollers 21 are rotatably connected with the frame 1, the rotating center lines of the squeezing rollers 21 are overlapped with the axial lines of the squeezing rollers 21, and the axial lines of two squeezing rollers 21 in the same group are parallel to each other. The two groups of squeeze rollers 21 are all obliquely arranged, the inclination angles of the squeeze rollers 21 are matched with the positions of welding seams, and the inclination angles of the two groups of squeeze rollers 21 are complementary. When the stainless steel pipe passes through the space between the extrusion rollers 21, the extrusion rollers 21 rotate along with the feeding of the stainless steel pipe, and simultaneously extrude the welding seam, so that the extrusion leveling is realized. The two groups of inclined extrusion rollers 21 respectively extrude and level the two ends of the weld joint protrusion, the pertinence of extrusion leveling is strong, and the leveling quality is high.
Referring to fig. 3, the sanding assembly 22 includes a sanding roller 221 and a support roller 222 disposed on the frame 1, the sanding roller 221 and the support roller 222 are disposed in a vertical arrangement and are axially parallel, and a stainless steel pipe is passed through a gap between the sanding roller 221 and the support roller 222. The two grinding assemblies 22 which are firstly contacted with the stainless steel pipe are respectively arranged corresponding to the two groups of extrusion rollers 21, the axes of the grinding rollers 221 of the two groups of grinding assemblies 22 are inclined, and the inclination angles are respectively consistent with the inclination angles of the corresponding extrusion rollers 21. The axis of the grinding roller 221 of the grinding assembly 22, which is far away from the squeezing roller 21 and contacts the stainless steel pipe at the back, is horizontal, and the annular grinding sleeve 3 is sleeved on the grinding roller 221. The polishing sleeve 3 is made of frosted sponge, and a bus of the polishing sleeve 3 is arranged in an arc shape matched with the periphery of the stainless steel pipe.
When the stainless steel pipe passes through between the grinding roller 221 and the support roller 222, the grinding roller 221 rotates in a state opposite to the feeding direction of the stainless steel pipe, and the ratio of the linear speed of rotation of the grinding roller 221 to the feeding speed of the stainless steel pipe is 100: 1. the support roller 222 prevents the stainless steel pipe from deviating from the feeding path by supporting the stainless steel pipe, and the polishing roller 221 performs polishing leveling by friction with the welding seam. The two inclined grinding rollers 221 respectively grind and level the two ends of the weld joint protrusion, the horizontal grinding rollers 221 further refine the weld joint, the grinding and leveling pertinence is strong, and the grinding contact area is sufficient. The cover 3 of polishing makes the area of contact increase when polishing the flattening at last time, and the flexibility of dull polish sponge makes the phenomenon of transition polishing difficult to take place, and the quality of the flattening of polishing further improves.
Referring to fig. 4, a spacing frame 4 is provided on the frame 1 corresponding to the grinding roller 221, and the grinding roller 221 is rotatably connected to the spacing frame 4. The spacing frame 4 is connected with the frame 1 in a sliding mode, and the sliding direction of the spacing frame 4 is parallel to the connecting line direction of the grinding roller 221 and the supporting roller 222 arranged opposite to the grinding roller 221. The spacing frame 4 is provided with a spacing mechanism 5 for a user to control the sliding of the spacing frame 4, so that the spacing between the grinding roller 221 and the support roller 222 is changed. The spacing mechanism 5 comprises a spacing screw 51 rotatably connected to the spacing frame 4, the axis of the spacing screw 51 is parallel to the sliding direction of the spacing frame 4, and the bottom end of the spacing screw 51 is in threaded connection with the frame 1.
A transmission worm 52 is rotatably connected on the spacing frame 4, the axis of the transmission worm 52 is overlapped with the axis of the spacing screw 51, and the transmission worm 52 is connected with the rotating shaft of the spacing screw 51. A transmission worm wheel 53 meshed with the transmission worm 52 is rotatably connected on the spacing frame 4, and a low-speed bevel gear 54 is fixedly arranged on the rotating shaft of the transmission worm wheel 53. A switching seat 6 is connected to the spacing frame 4 in a sliding manner, and the sliding direction of the switching seat 6 is parallel to the axial direction of the grinding roller 221. A grinding motor 61 is fixed on the switching seat 6, and the axis of the output end of the grinding motor 61 is parallel to the axis of the transmission worm 52. The output end of the grinding motor 61 is connected with an output bevel gear 611 through a key. A high-speed bevel gear 7 is fixedly arranged on the rotating shaft of the grinding roller 221 corresponding to the output bevel gear 611, and when the switching seat 6 moves to one end of the sliding path of the switching seat 6, the output bevel gear 611 is meshed with the low-speed bevel gear 54; when the switching base 6 is displaced to the other end of the sliding path of the switching base 6, the output bevel gear 611 meshes with the high-speed bevel gear 7.
When the output bevel gear 611 is engaged with the high-speed bevel gear 7, the grinding motor 61 drives the grinding roller 221 to rotate. When the output bevel gear 611 is engaged with the low-speed bevel gear 54, the grinding motor 61 drives the transmission worm wheel 53 to rotate, and further drives the transmission worm 52 to rotate, and drives the pitch screw 51 to rotate, thereby driving the pitch frame 4 to slide. The sliding structure of the switching seat 6 enables the meshing object of the output bevel gear 611 to be changeable, so that the grinding motor 61 is used as a power source for rotating the grinding roller 221 and lifting the spacing frame 4 at the same time, the precision of adjusting the spacing between the grinding roller 221 and the supporting roller 222 is high, and a user can adjust the grinding pressing force conveniently and accurately. And effectively saves the usage amount of the motor, and is environment-friendly and efficient.
Referring to fig. 4, the outer diameters of the high-speed bevel gear 7, the output bevel gear 611, and the low-speed bevel gear 54 sequentially increase, and the gear ratio between the output bevel gear 611 and the high-speed bevel gear 7 is 1: 5, the transmission ratio between the output bevel gear 611 and the low-speed bevel gear 54 is 2: 1. above-mentioned transmission makes grinding motor 61 can satisfy grinding roller 221 high-speed rotation and interval screw 51 low-speed rotatory drive demand simultaneously, and grinding motor 61 need not to choose for use variable speed motor, and use cost and control cost reduce, and it is more convenient to use.
Referring to fig. 5, a guide rod 41 slidably connected to the frame 1 is fixed to the distance frame 4, and a distance scale slot 411 is axially formed in the guide rod 41. A reference ring 412 is fixedly arranged on the frame 1, the reference ring 412 is sleeved on the guide rod 41, and the inner peripheral line of the reference ring 412 is flush with one scale value of the interval scale groove 411. When the spacing frame 4 slides, the inner circumference of the reference ring 412 changes with the level of the scale value of the spacing scale groove 411, so that a user can read the level, and further obtain the variation of the spacing between the grinding roller 221 and the support roller 222, and the adjustment is more convenient.
Referring to fig. 5, the distance frame 4 is provided with a switching assembly 8 for a user to fix a sliding position of the switching seat 6, and the switching assembly 8 includes a locking bolt 81 screwed on the switching seat 6. Two stroke holes 82 are arranged on the distance frame 4 corresponding to the locking bolts 81, and the two stroke holes 82 are respectively arranged at two ends of the sliding path of the switching seat 6. The axis of the locking bolt 81 is parallel to the axis of the output end of the sanding motor 61, and the end of the bolt body of the locking bolt 81 penetrates through the switching seat 6 and then is embedded in the corresponding stroke hole 82.
The user manually displaces the switching base 6, inserts the locking bolt 81 on the switching base 6, rotates the locking bolt 81 until the locking bolt 81 is fitted into the corresponding stroke hole 82, and fixes the position of the switching base 6 by fitting and limiting. The position of the switching seat 6 can be adjusted through the operation, the operation is simple, and the control effect is good.
The implementation principle of the embodiment is as follows: through squeeze roll 21 extrusion flattening welding seam, and then polish the flattening welding seam through grinding roller 221, squeeze roll 21 and the slope setting of grinding roller 221 make the protruding both ends of welding seam all by the pertinence flattening, the grinding roller 221 that the level set up with polish set 3 and further polish the polishing welding seam, the welding seam grinds the high quality of flat processing, the finished product quality of nonrust steel pipe is high.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. The utility model provides a production line of manufacturing stainless steel welded tube, includes frame (1), still includes flattening unit (2) of setting in frame (1), its characterized in that: the leveling unit (2) comprises two groups of squeeze rollers (21) which are arranged on the rack (1) and used for squeezing and leveling welding seams, the two groups of squeeze rollers (21) are sequentially arranged along the feeding direction of the stainless steel tube, the squeeze rollers (21) are rotationally connected with the rack (1) and have inclined axes, the two groups of squeeze rollers (21) are vertically arranged, and the inclined angles of the two groups of squeeze rollers (21) are complementary; the machine frame (1) is also provided with an uncoiling unit (11), a forming unit (12), a welding unit (13), a reprocessing unit (14) and a cutting unit (15), wherein the uncoiling unit (11), the forming unit (12), the welding unit (13), the leveling unit (2), the reprocessing unit (14) and the cutting unit (15) are sequentially arranged along the feeding direction of the stainless steel pipe; the leveling unit (2) further comprises three polishing assemblies (22) arranged on the rack (1) and used for polishing and leveling welding seams, the three polishing assemblies (22) are sequentially arranged between the extrusion roller (21) and the reprocessing unit (14), each polishing assembly (22) comprises a polishing roller (221) and a supporting roller (222) which are vertically arranged, the polishing rollers (221) and the supporting rollers (222) are rotatably connected with the rack (1), the polishing rollers (221) of the two groups of polishing assemblies (22) close to the extrusion roller (21) are obliquely arranged and have complementary inclination angles, and the axis of the polishing roller (221) close to the reprocessing unit (14) is horizontal; the polishing roller (221) close to the reprocessing unit (14) is sleeved with a polishing sleeve (3) made of a frosted sponge, and the generatrix of the polishing sleeve (3) is bent and the bending degree of the generatrix of the polishing sleeve is matched with the bending degree of the periphery of the stainless steel pipe.
2. A production line for manufacturing stainless steel welded tubes according to claim 1, characterized in that: the grinding machine is characterized in that an interval frame (4) is arranged on the rack (1) corresponding to the grinding assembly (22), the interval frame (4) is connected with the rack (1) in a sliding mode along a connecting line direction of a grinding roller (221) and a supporting roller (222) corresponding to the grinding assembly (22), the grinding roller (221) is connected onto the interval frame (4) in a rotating mode, a grinding motor (61) used for driving the grinding roller (221) to rotate is arranged on the interval frame (4), and an interval mechanism (5) used for controlling the interval frame (4) to slide is arranged on the interval frame (4).
3. A production line for manufacturing stainless steel welded tubes according to claim 2, characterized in that: the spacing mechanism (5) comprises a spacing screw rod (51) rotationally connected to a spacing frame (4), the axis of the spacing screw rod (51) is parallel to the sliding direction of the spacing frame (4), the spacing frame (4) is in threaded connection with the rack (1), a transmission worm (52) is coaxially connected to the rotating shaft of the spacing screw rod (51), a transmission worm wheel (53) meshed with the transmission worm (52) is rotationally connected to the spacing frame (4), a switching seat (6) is slidably connected to the spacing frame (4) along the direction parallel to the axial direction of the polishing roller (221), the polishing motor (61) is fixed on the switching seat (6), the axial direction of the output end of the polishing motor (61) is parallel to the axial direction of the spacing screw rod (51), an output bevel gear (611) is fixedly arranged at the output end of the polishing motor (61), and a high-speed bevel gear (7) is fixedly arranged on the rotating shaft of the polishing roller (221) corresponding to the output bevel gear (611), a low-speed bevel gear (54) is fixedly arranged on a rotating shaft of the transmission worm (52) corresponding to the output bevel gear (611), and a switching component (8) for fixing the position of the switching seat (6) when the switching seat (6) slides to the output bevel gear (611) to be meshed with the low-speed bevel gear (54) or the high-speed bevel gear (7) is arranged on the spacing frame (4).
4. A production line for manufacturing stainless steel welded tubes according to claim 3, characterized in that: the outer diameters of the high-speed bevel gear (7), the output bevel gear (611) and the low-speed bevel gear (54) are sequentially increased.
5. A production line for manufacturing stainless steel welded tubes according to claim 3, characterized in that: switch subassembly (8) including locking bolt (81) of threaded connection on switching seat (6), locking bolt (81) are followed the axial and are run through switching seat (6), be provided with on interval frame (4) and supply locking bolt (81) male stroke hole (82).
6. A production line for manufacturing stainless steel welded tubes according to claim 3, characterized in that: be fixed with guide bar (41) with frame (1) sliding connection on interval frame (4), be provided with interval scale groove (411) along the axial on guide bar (41), frame (1) is last to set firmly reference ring (412), guide bar (41) is established to reference ring (412) cover.
7. A production line for manufacturing stainless steel welded tubes according to claim 1, characterized in that: and a blower (23) for cooling the stainless steel pipe and blowing away dust is arranged beside the grinding assembly (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010586077.7A CN111823016B (en) | 2020-06-24 | 2020-06-24 | Production line for manufacturing stainless steel welded pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010586077.7A CN111823016B (en) | 2020-06-24 | 2020-06-24 | Production line for manufacturing stainless steel welded pipe |
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| CN111823016A CN111823016A (en) | 2020-10-27 |
| CN111823016B true CN111823016B (en) | 2021-10-12 |
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| CN113198870A (en) * | 2021-03-24 | 2021-08-03 | 宁波永享不锈钢管道有限公司 | Nonrust steel pipe forming device and production line thereof |
| CN116673354A (en) * | 2023-05-26 | 2023-09-01 | 安徽安钢金属制品有限公司 | Steel pipe blanking forming device and application method thereof |
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| CN88102675A (en) * | 1987-05-08 | 1988-11-16 | 艾尔·帕托尼克股份公司 | The shaping appliance of the longitudinal seam bonding machine of circle tube tank body |
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| CN111823016A (en) | 2020-10-27 |
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