阅读说明：本技术 钢管精成型装置 (Steel pipe precision forming device ) 是由 史纪忠 周德恒 何叶磊 于 2021-08-20 设计创作，主要内容包括：本发明提供了一种钢管精成型装置,属于钢管成型技术领域,包括机架、上辊组件、下辊组件和侧辊组件；上辊组件以第一路径为轴心转动设于机架,第一路径垂直于输送方向,也垂直于上下方向,上辊组件具有沿第一路径移动的定位机构,定位机构与管坯上开口的两侧缘抵接；下辊组件以第二路径为轴心设于机架,下辊组件还与机架沿上下方向滑动配合；侧辊组件具有两个侧辊,两个侧辊均以第三路径为轴心转动设于机架,两个侧辊以输送路径为对称轴对称设置。本发明提供的钢管精成型装置,旨在实现各个部件之间的距离可以调节,满足生产不同尺寸的钢管,降低生产成本。(The invention provides a steel pipe fine forming device, which belongs to the technical field of steel pipe forming and comprises a rack, an upper roller assembly, a lower roller assembly and a side roller assembly; the upper roll component is rotationally arranged on the frame by taking a first path as an axis, the first path is vertical to the conveying direction and vertical to the up-and-down direction, the upper roll component is provided with a positioning mechanism moving along the first path, and the positioning mechanism is abutted against two side edges of an upper opening of the tube blank; the lower roll component is arranged on the machine frame by taking the second path as an axis, and is in sliding fit with the machine frame along the up-down direction; the side roller assembly is provided with two side rollers, the two side rollers are arranged on the rack in a rotating mode by taking the third path as an axis, and the two side rollers are symmetrically arranged by taking the conveying path as a symmetry axis. The invention provides a steel pipe fine forming device, which aims to realize that the distance between each part can be adjusted, meet the requirements of producing steel pipes with different sizes and reduce the production cost.)

1. Steel pipe finish forming device, its characterized in that includes:

a frame;

the upper roll assembly is arranged on the rack by taking a first path as a rotating shaft center, the first path is perpendicular to the conveying direction and is also perpendicular to the vertical direction, the upper roll assembly is provided with a positioning mechanism moving along the first path, and the positioning mechanism is abutted against two side edges of an upper opening of the tube blank;

the lower roll assembly is arranged on the machine frame by taking a second path as a rotating shaft center and is positioned below the upper roll assembly, the second path is parallel to the first path, the lower roll assembly is in sliding fit with the machine frame along the vertical direction, and the lower roll assembly is used for providing supporting force for the bottom of the tube blank; and

the side roller subassembly has two side rollers, two the side roller all uses the third route to rotate as the axle center and locates the frame, the third route is on a parallel with upper and lower direction, two the side roller uses conveying path to set up as symmetry axis symmetry, two the side roller still with the frame is on a parallel with sliding fit in the direction on first route, two the side roller is used for applying the extrusion force to the both sides face of pipe.

2. The steel pipe finishing apparatus of claim 1, wherein the lower roller assembly comprises:

the two connecting seats are arranged oppositely and are arranged on the rack in a sliding manner along the vertical direction respectively;

the lower roll shaft is arranged by taking the second path as an axis, and two ends of the lower roll shaft are respectively in rotating connection with the two connecting seats; and

the two first drivers are arranged on the rack and are respectively connected with the two connecting seats and used for respectively driving the two connecting seats to move up and down.

3. The steel pipe finish forming apparatus of claim 1, wherein the side roller assembly further comprises:

the two mounting frames are arranged oppositely, the two mounting frames are arranged on the rack in a sliding mode along a first path in parallel, and the two side rollers are connected to the two mounting frames in a rotating mode respectively; and

and the two fourth drivers are respectively arranged on the rack, and the two fourth drivers are respectively connected with the two mounting frames and are used for respectively driving the two mounting frames to move along the direction parallel to the first path.

4. The steel pipe fine forming device according to claim 1, further comprising an inclined insertion assembly, wherein the inclined insertion assembly comprises two inclined insertion rollers, the two inclined insertion rollers are respectively rotatably arranged on the frame, the two inclined insertion rollers are arranged on the frame in a mirror symmetry manner along the conveying direction, the two inclined insertion rollers are arranged at an included angle, and the two inclined insertion rollers are used for respectively supporting two opposite sides of the outer peripheral surface of the pipe blank.

5. The steel pipe fine forming device according to claim 4, wherein the machine frame comprises a workbench and two support frames which are oppositely arranged on the workbench, the two support frames are arranged in a sliding manner along a direction perpendicular to the conveying direction, and the two inclined insertion rollers are respectively and rotatably arranged on the two support frames.

6. The steel pipe fine forming device according to claim 5, wherein the supporting frame comprises a supporting seat and a mounting seat, the supporting seat is slidably arranged on the frame along a direction perpendicular to the conveying direction and used for adjusting the opening and closing distance between the two supporting seats; the mounting seat is arranged on the supporting seat in a sliding mode in the vertical direction and used for adjusting the height of the mounting seat, and the oblique inserting roller is rotatably connected with the mounting seat.

7. The steel pipe finish forming device of claim 6, wherein the inclined insertion assembly further comprises a second driver arranged on the supporting seat, and the second driver is connected with the mounting seat and used for driving the mounting seat to slide in the up-and-down direction.

8. The steel pipe finish forming apparatus of claim 1, wherein said upper roller assembly comprises:

the upper roll shaft is rotatably arranged on the frame by taking the first path as an axis, external threads with opposite rotation directions are respectively arranged at two ends of the upper roll shaft, and the two positioning mechanisms are respectively in threaded connection with two ends of the upper roll shaft;

the two guide mechanisms are respectively connected to the rack and are used for limiting the positioning mechanism to move in the axial direction of the upper roller shaft; and

and the third driver is connected with the end part of the upper roll shaft and is used for driving the upper roll shaft to rotate by taking the first path as an axis.

9. The steel pipe finish forming device of claim 8, wherein the guiding mechanism comprises a positioning base connected with a housing of the third driver, the positioning base is provided with a guiding sheet extending along the axial direction of the upper roller shaft, the positioning mechanism is provided with a guiding groove matched with the guiding sheet, and the guiding sheet is in sliding fit with the guiding groove.

10. The steel pipe fine forming device according to claim 9, wherein the positioning mechanism comprises a limiting cylinder which is rotatably sleeved outside the upper roller shaft, the outer peripheral surface of the limiting cylinder is provided with an annular abdicating groove, the abdicating groove divides the limiting cylinder into a positioning cylinder and positioning pieces, the positioning pieces in the two positioning mechanisms are both positioned between the positioning cylinders in the two positioning mechanisms, the outer peripheral surface of the positioning cylinder is provided with the guide groove, and the positioning pieces are used for being abutted against the two side edges of the opening of the pipe blank.

Technical Field

The invention belongs to the technical field of steel pipe forming, and particularly relates to a steel pipe fine forming device.

Background

The steel tube production process clamps two sides of a steel strip through the roll shafts, the steel strip sequentially passes through a plurality of groups of roll shafts with different shapes and angles in the conveying process, so that the flat steel strip is gradually bent until an annular steel tube blank is formed, and finally, the gap of the steel tube blank is fixedly connected through high-frequency welding to form a finished steel tube. In the fine forming stage, the steel pipe blank needs to be precisely formed so as to ensure that the finished product meets the standard. However, when different steel pipe products are produced, the distance between each part in the fine forming stage needs to be adjusted to ensure the size requirement of the finished steel pipe, most of the existing equipment can not adjust the size between the parts, and the cost of the whole replacement part product is high.

Disclosure of Invention

The invention aims to provide a steel pipe fine forming device, which aims to realize that the distance between each part can be adjusted, meet the requirements of producing steel pipes with different sizes and reduce the production cost.

In order to achieve the purpose, the invention adopts the technical scheme that: provided is a steel pipe finish forming device, including:

a frame;

the upper roll assembly is arranged on the rack by taking a first path as a rotating shaft center, the first path is perpendicular to the conveying direction and is also perpendicular to the vertical direction, the upper roll assembly is provided with a positioning mechanism moving along the first path, and the positioning mechanism is abutted against two side edges of an upper opening of the tube blank;

the lower roll assembly is arranged on the machine frame by taking a second path as a rotating shaft center and is positioned below the upper roll assembly, the second path is parallel to the first path, the lower roll assembly is in sliding fit with the machine frame along the vertical direction, and the lower roll assembly is used for providing supporting force for the bottom of the tube blank; and

the side roller subassembly has two side rollers, two the side roller all uses the third route to rotate as the axle center and locates the frame, the third route is on a parallel with upper and lower direction, two the side roller uses conveying path to set up as symmetry axis symmetry, two the side roller still with the frame is on a parallel with sliding fit in the direction on first route, two the side roller is used for applying the extrusion force to the both sides face of pipe.

In one possible implementation, the lower roller assembly includes:

the two connecting seats are arranged oppositely and are arranged on the rack in a sliding manner along the vertical direction respectively;

the lower roll shaft is arranged by taking the second path as an axis, and two ends of the lower roll shaft are respectively in rotating connection with the two connecting seats; and

the two first drivers are arranged on the rack and are respectively connected with the two connecting seats and used for respectively driving the two connecting seats to move up and down.

In one possible implementation, the side roller assembly further includes:

the two mounting frames are arranged oppositely, the two mounting frames are arranged on the rack in a sliding mode along a first path in parallel, and the two side rollers are connected to the two mounting frames in a rotating mode respectively; and

and the two fourth drivers are respectively arranged on the rack, and the two fourth drivers are respectively connected with the two mounting frames and are used for respectively driving the two mounting frames to move along the direction parallel to the first path.

In a possible implementation mode, the steel pipe forming device further comprises an inclined insertion assembly, the inclined insertion assembly comprises two inclined insertion rollers, the two inclined insertion rollers are respectively rotatably arranged on the frame and the two inclined insertion rollers are arranged on the frame in a mirror symmetry mode along the conveying direction, the inclined insertion rollers are arranged at included angles, and the inclined insertion rollers are used for respectively supporting two opposite sides of the outer peripheral surface of the pipe blank.

In a possible implementation manner, the rack comprises a workbench and two opposite support frames arranged on the workbench, the two support frames are arranged in a sliding manner along a direction perpendicular to the conveying direction, and the two inclined insertion rollers are respectively rotatably arranged on the two support frames.

In a possible implementation manner, the supporting frame comprises a supporting seat and a mounting seat, wherein the supporting seat is arranged on the rack in a sliding manner along a direction perpendicular to the conveying direction and is used for adjusting the opening and closing distance between the two supporting seats; the mounting seat is arranged on the supporting seat in a sliding mode in the vertical direction and used for adjusting the height of the mounting seat, and the oblique inserting roller is rotatably connected with the mounting seat.

In a possible implementation manner, the inclined insertion assembly further includes a second driver disposed on the support seat, and the second driver is connected to the mounting seat and used for driving the mounting seat to slide in the up-down direction.

In one possible implementation, the upper roller assembly includes:

the upper roll shaft is rotatably arranged on the frame by taking the first path as an axis, external threads with opposite rotation directions are respectively arranged at two ends of the upper roll shaft, and the two positioning mechanisms are respectively in threaded connection with two ends of the upper roll shaft;

the two positioning mechanisms are sleeved at two ends of the upper roll shaft and are respectively in threaded connection with two ends of the upper roll shaft, and the two positioning mechanisms are used for abutting against the opening of the tube blank;

the two guide mechanisms are respectively connected to the rack and are used for limiting the movement of the positioning mechanism in the axial direction of the upper roller; and

and the third driver is connected with the end part of the upper roll shaft and is used for driving the upper roll shaft to rotate by taking the first path as an axis.

In a possible implementation manner, the guide mechanism includes a positioning base connected to the housing of the third driver, the positioning base has a guide piece extending along the axial direction of the upper roller shaft, the positioning mechanism is provided with a guide groove adapted to the guide piece, and the guide piece is in sliding fit with the guide groove.

In a possible implementation mode, positioning mechanism locates including rotating the cover go up the outer spacing section of thick bamboo of roller, annular groove of stepping down has been seted up to spacing section of thick bamboo periphery, the groove of stepping down will spacing section of thick bamboo divide into a location section of thick bamboo and spacer, two among the positioning mechanism the spacer all is located two positioning mechanism between the location section of thick bamboo, seted up on the outer peripheral face of a location section of thick bamboo the guide way, the spacer is used for with the marginal butt in pipe open-ended both sides.

The steel pipe fine forming device provided by the invention has the beneficial effects that: compared with the prior art, the positioning mechanism of the upper roller assembly of the steel pipe fine forming device can adjust the opening and closing distance according to the size of the opening required by the pipe blank, and the opening of the pipe blank is gradually gathered in the forming process until the opening is abutted against the positioning mechanism, so that the size of the opening of the pipe blank after forming meets the requirement. The bottom that lower roll subassembly can be to the pipe supports, and lower roll subassembly can reciprocate according to the size of processing pipe simultaneously to with last roll assembly cooperation processing formation unidimensional pipe. The two side rollers respectively clamp the two sides of the tube blank so that arc surfaces are formed on the two sides of the tube blank, and the distance between the two side rollers is adjusted according to the size requirement of the tube blank to be processed so as to meet the size requirement of different tube blanks. This device can adjust the interval between roller assembly and the lower roller assembly according to the production requirement, also can adjust the interval between two side rollers simultaneously, makes the outer peripheral face of pipe form smooth mellow and graceful arcwall face, and positioning mechanism can require along self endwise slip according to the opening of pipe to be applicable to different openings. The upper roll assembly, the lower roll assembly and the two side rolls can rotate, so that the friction force applied to the tube blank in the conveying process is reduced, and the tube blank is prevented from being abraded. The invention can produce pipe blanks with different sizes without replacing each part, thereby reducing the production cost and meeting various production requirements.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a steel pipe precision forming device provided in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a wedge assembly according to an embodiment of the present invention;

FIG. 3 is a schematic front view of a slanted insertion assembly according to an embodiment of the present invention;

FIG. 4 is a partial enlarged view of portion A of FIG. 2;

FIG. 5 is a schematic view of the upper roll assembly and tube blank configuration employed in the present invention;

figure 6 is a front elevational view of the upper roller assembly employed in the present invention.

In the figure: 1. a third driver; 2. a positioning mechanism; 201. a positioning cylinder; 2011. a guide groove; 202. a yielding groove; 203. positioning plates; 3. positioning a base; 301. a guide piece; 4. an upper roll shaft; 5. a mounting frame; 6. a side roller; 8. a fourth driver; 9. a lower roll shaft; 901. a roller sleeve; 10. a connecting seat; 11. a first driver; 12. oblique inserting rollers; 13. a support frame; 1301. a second mount; 1301-1, mounting blocks; 1301-2, fixing blocks; 1302. a first mounting member; 1303. a supporting seat; 1304. an arc-shaped chute; 1305. a strip-shaped opening; 1306. a slide bar; 14. a work table; 15. a second driver; 1501. a drive motor; 1502. a worm; 1503. a limiting seat; 16. a sixth driver; 17. a guide roller; 18. a frame; 19. and (5) tube blanks.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and 5, a steel pipe finishing apparatus according to the present invention will now be described. The steel pipe fine forming device comprises a rack 18, an upper roller assembly, a lower roller assembly and a side roller assembly; the upper roll component is arranged on the frame 18 by taking a first path as a rotating axis, the first path is vertical to the conveying direction and vertical to the up-and-down direction, the upper roll component is provided with a positioning mechanism 2 moving along the first path, and the positioning mechanism 2 is abutted against two side edges of an upper opening of the tube blank 19; the lower roller assembly is arranged on the machine frame 18 by taking a second path as an axis and is positioned below the upper roller assembly, the second path is parallel to the first path, the lower roller assembly is also in sliding fit with the machine frame 18 along the up-down direction, and the lower roller assembly is used for providing supporting force for the bottom of the tube blank 19; the side roller assembly is provided with two side rollers 6, the two side rollers 6 are arranged on the frame 18 by taking a third path as a rotating axis, the third path is parallel to the vertical direction, the two side rollers 6 are symmetrically arranged by taking the conveying path as a symmetry axis, the two side rollers 6 are also in sliding fit with the frame 18 in the direction parallel to the first path, and the two side rollers 6 are used for applying extrusion force to two side surfaces of the tube blank 19.

Compared with the prior art, the steel pipe fine forming device provided by the invention has the advantages that the opening and closing distance of the positioning mechanism 2 of the upper roller assembly of the steel pipe fine forming device can be adjusted according to the size of the opening needed by the pipe blank 19, and the opening of the pipe blank 19 is gradually gathered in the forming process until the opening is abutted against the positioning mechanism 2, so that the size of the opening of the pipe blank 19 after being formed meets the requirement. The lower roller assembly can support the bottom of the tube blank 19 while the lower roller assembly can move up and down according to the size of the processed tube blank 19 to cooperate with the upper roller assembly to process the tube blank 19 into different sizes. The two side rollers 6 respectively clamp the two sides of the tube blank 19 so that the two sides of the tube blank 19 form arc surfaces, and the distance between the two side rollers 6 is adjusted according to the size requirement of the tube blank 19 to be processed so as to be suitable for different size requirements of the tube blank 19. This device can adjust the interval between roller assembly and the lower roller assembly according to the production requirement, also can adjust the interval between two side rollers 6 simultaneously, makes the outer peripheral face of pipe 19 form smooth mellow and full arcwall face, and positioning mechanism 2 can require along self endwise slip according to the opening of pipe 19 to be applicable to different openings. The upper roller assembly, the lower roller assembly and the two side rollers 6 can rotate, so that the friction force borne by the tube blank 19 in the conveying process is reduced, and the tube blank 19 is prevented from being abraded. The invention can produce the tube blanks 19 with different sizes without replacing each part, thereby reducing the production cost and meeting various production requirements.

It should be noted that "axis of rotation" refers to the axis of rotation of the roller shaft and does not mean that the entire assembly is rotationally coupled to the frame 18.

Specifically, the upper roller assembly, the lower roller assembly and the side roller assembly are located on the same plane, which is perpendicular to the conveying path.

Optionally, the upper roller assembly is slidably connected to the frame 18 and can slide in an up-down direction to adjust the distance between the upper roller assembly and the lower roller assembly.

In some embodiments, referring to fig. 1, the lower roll assembly includes two opposite connecting seats 10, a lower roll shaft 9 and two first drivers 11, wherein the two connecting seats 10 are respectively slidably disposed on the machine frame 18 in the up-down direction; the lower roll shaft 9 is arranged by taking the second path as an axis, and two ends of the lower roll shaft are respectively in rotating connection with the two connecting seats 10; two first drivers 11 are all located frame 18, and two first drivers 11 are connected with two connecting seats 10 respectively for drive connecting seat 10 respectively and reciprocate.

In the embodiment, the first driver 11 can drive the lower roll shaft 9 to move in the up-and-down direction, so that the connecting seat 10 can slide up and down along the frame 18, and the distance between the lower roll shaft 9 and the upper roll assembly can be adjusted to adapt to pipe blanks 19 with different sizes.

Optionally, the first driver 11 is a cylinder, or a motor and a lead screw, and a nut on the lead screw is connected with the lower roller shaft 9.

Optionally, a roller sleeve 901 is sleeved outside the lower roller shaft 9, and the roller sleeve 901 has an arc-shaped forming surface for forming an arc-shaped surface at the bottom of the tube blank 19.

In some embodiments, referring to fig. 1, the side roller assembly further includes two opposite mounting frames 5 and two fourth drivers 8, the two mounting frames 5 are respectively slidably disposed on the frame 18 along a path parallel to the first path, and the two side rollers 6 are respectively rotatably connected to the two mounting frames 5; the two fourth drivers 8 are respectively arranged on the frame 18, and the two fourth drivers 8 are respectively connected with the two mounting frames 5 and are used for respectively driving the two mounting frames 5 to move along a direction parallel to the first path.

The two fourth drivers 8 respectively drive the two mounting frames 5 to move in the direction perpendicular to the conveying direction, so that the distance between the two mounting frames 5 is adjusted, the two side rollers 6, the upper roller assembly and the lower roller assembly are matched to apply extrusion force to the outer peripheral surface of the tube blank 19, and the tube blank 19 is formed into an arc-shaped peripheral surface. Through the removal of fourth driver 8 control mounting bracket 5, need not artifical the regulation, simplified the operation, improved work efficiency.

Alternatively, the fourth driver 8 may be a cylinder.

Optionally, the fourth driver 8 includes a motor and a screw rod, the screw rod of the screw rod is connected to the output end of the motor, the nut is connected to the mounting frame 5, and the motor drives the screw rod to rotate, so that the nut moves along the screw rod, and the adjusting mounting frame 5 moves.

Optionally, the mounting frame 5 has a mounting opening capable of mounting the side roller 6, and both ends of the side roller 6 are respectively rotatably connected with the mounting opening.

In some embodiments, referring to fig. 1 to 4, the steel tube forming apparatus further includes an oblique insertion assembly, the oblique insertion assembly includes two oblique insertion rollers 12, the two oblique insertion rollers 12 are respectively rotatably disposed on the frame 18, the two oblique insertion rollers 12 are disposed on the frame 18 along the conveying direction in a mirror symmetry manner, the two oblique insertion rollers 12 are disposed at an included angle, and the two oblique insertion rollers 12 are configured to respectively support two opposite sides of the outer peripheral surface of the tube blank 19.

The two oblique inserting rollers 12 provide supporting force for the outer peripheral surface of the tube blank 19 at the contact blind point of the die and the tube blank 19, and the defects that the supporting blind point area of the tube blank 19 is sunken or raised due to extrusion forming in the forming process are avoided. The two oblique inserting rollers 12 respectively support two opposite sides of the tube blank 19, so that the surface stress of the tube blank 19 is uniform, and the ovality of the formed tube blank 19 is prevented from failing to reach the standard. The oblique inserting rollers 12 can rotate along with the conveying of the tube blank 19 so as to reduce the friction force with the outer surface of the tube blank 19 and avoid abrasion of the tube blank 19. The device can ensure that the surface of the formed tube blank 19 is smooth and mellow, and the product quality is improved.

Optionally, the steel pipe precision forming device further comprises a guide assembly, the guide assembly comprises two guide rollers 17 rotatably arranged on the frame 18, the two guide rollers 17 are respectively arranged on the upstream of the side roller assembly and the downstream of the inclined insertion assembly along the conveying direction, and the two guide rollers 17 are symmetrically arranged along the conveying direction.

Alternatively, the two guide rollers 17 are parallel to each other with the axis perpendicular to the conveying direction.

In some embodiments, referring to fig. 1 to 4, the frame 18 includes a worktable 14 and two supporting frames 13 oppositely disposed on the worktable 14, the two supporting frames 13 are slidably disposed along a direction perpendicular to the conveying direction, and the two oblique rollers 12 are respectively rotatably disposed on the two supporting frames 13.

In the embodiment, the two support frames 13 slide along the direction perpendicular to the conveying direction, and the distance between the two support frames 13 can be adjusted, so that the tube blanks 19 with different diameters can be supported, when the diameter of the tube blank 19 to be processed is changed, the whole device does not need to be replaced, and the production cost is saved.

Optionally, a fifth driver is arranged on the workbench 14, and the fifth driver is connected with the support frame 13 and can drive the support frame 13 to slide.

Alternatively, the fifth driver may be an air cylinder.

In some embodiments, referring to fig. 1 to 4, the supporting frame 13 includes a supporting base 1303 and a mounting base, the supporting base 1303 is slidably disposed on the frame 18 along a direction perpendicular to the conveying direction for adjusting an opening and closing distance between the two supporting bases 1303; the mounting seat is arranged on the supporting seat 1303 in a sliding manner along the up-down direction, the height of the mounting seat is adjusted, and the oblique inserting roller 12 is rotatably connected with the mounting seat.

The supporting seat 1303 can slide along the direction perpendicular to the conveying direction to adjust the opening and closing distance between the two supporting seats 1303, the height of the mounting seat can be adjusted, and when the size of the tube blank 19 changes, the supporting seat 1303 and the mounting seat are respectively adjusted to enable the oblique inserting rollers 12 to provide supporting force for the tube blank 19, so that the adjusting range is expanded, and the device is suitable for tube blanks 19 with more sizes. The oblique inserting rollers 12 are rotatably connected with the mounting seats, in the process of forming the tube blank 19, the formed tube blank 19 is continuously conveyed to the next station, meanwhile, the tube blank 19 at the previous station is conveyed, and the rotary connection can reduce the friction force between the oblique inserting rollers 12 and the tube blank 19 and avoid abrasion on the outer surface of the tube blank 19.

Optionally, corresponding mounting holes are respectively formed in the mounting seat and the supporting seat 1303, and after the mounting seat is adjusted to a specified position, the corresponding mounting holes can be fixedly connected through threaded connectors, so that the mounting seat is positioned.

In some embodiments, referring to fig. 1 to 4, the inclined insertion assembly further includes a second driver 15 disposed on the supporting base 1303, and the second driver 15 is connected to the mounting base and is used for driving the mounting base to slide in the up-down direction.

Through the 15 drive mount pads of second driver slip, can realize the automatically regulated mount pad, need not artifical the regulation, improve regulation efficiency, can increase the precision of adjusting simultaneously, reduce staff's intensity of labour.

In some embodiments, referring to fig. 2 to 3, the second driver 15 includes a driving motor 1501, a worm wheel, a worm gear 1502, and a position-limiting seat 1503, wherein the driving motor 1501 is disposed on the supporting seat 1303; the turbine is connected with the output end of the driving motor 1501; the worm 1502 meshes with the worm gear; the limiting seat 1503 is fixed on the mounting seat, and a spiral groove matched with the spiral teeth of the worm 1502 is formed in the inner annular surface of the limiting seat 1503.

The driving end of the driving motor 1501 rotates the worm gear, the worm gear 1502 meshed with the worm gear rotates, the limiting seat 1503 moves in the up-and-down direction, and therefore the mounting seat is driven to move. The worm 1502 is connected with the mounting seat through the limiting seat 1503, so that the mounting seat does not rotate along with the worm 1502 in the moving process, and the stability of the mounting seat is ensured.

In some embodiments, referring to fig. 1 to 4, the mounting base includes a first mounting member 1302 slidably connected to the support base 1303 and a second mounting member 1301 rotatably connected to the first mounting member 1302, the second mounting member 1301 being capable of rotating about an axis parallel to the conveying path, and the oblique-insertion roller 12 being rotatably connected to the second mounting member 1301.

The second installation part 1301 can rotate in a plane perpendicular to a conveying plane, different molds can be adopted usually when steel pipes of different sizes are produced, contact blind points of the molds and the contact blind points can be changed, the inclined insertion rollers 12 can be suitable for different blind point areas by the aid of the rotating second installation part 1301, and application range of the device is enlarged.

In some embodiments, referring to fig. 2 to fig. 4, an arc-shaped sliding slot 1304 is formed on the first mounting member 1302, and an arc surface adapted to the arc-shaped sliding slot 1304 is formed on the second mounting member 1301, so as to guide the rotation of the second mounting member 1301.

The cambered surface of second installed part 1301 can slide in arc spout 1304, has realized that second installed part 1301 rotates around the axis that is on a parallel with the conveying path, can provide the direction to the rotation of second installed part 1301 simultaneously, avoids its skew to predetermine the route. The angle adjusting mechanism is simple in structure, simplifies the connecting structure and the connecting part, is convenient to adjust, and improves the angle adjusting efficiency.

In some embodiments, referring to fig. 1 to fig. 4, the arc chute 1304 is provided with a strip opening 1305 along the rotation direction of the second mounting member 1301, the second mounting member 1301 is provided with a slide bar 1306 capable of being slidably inserted into the strip opening 1305, the support base 1303 is further provided with a sixth driver 16, and a driving end of the sixth driver 16 is connected to the slide bar 1306 for driving the slide bar 1306 to slide along the strip opening 1305.

The sliding strip 1306 can slide along the arc-shaped sliding groove 1304 in the strip opening 1305, the sliding strip 1306 is driven to slide through the sixth driver 16, the second installation part 1301 is rotated around an axis parallel to the conveying path, the angle between the two second installation parts 1301 is adjusted, and therefore the two inclined insertion rollers 12 can support steel pipes of different sizes.

Optionally, the sixth actuator 16 is a cylinder, and the driving end of the cylinder is hinged to the slide bar 1306, and the slide bar 1306 can slide along the strip opening 1305 when the driving end is extended or retracted.

In some embodiments, not shown, the slide bar 1306 has a latch thereon, and the drive end of the sixth driver 16 is connected to a gear capable of engaging with the latch.

The sixth driver 16 drives the gear to rotate so that the slide bar 1306 engaged therewith rotates to effect sliding of the slide bar 1306 along the arcuate slide channel 1304. The slide bar 1306 is driven to rotate in a gear engagement mode, the position of the slide bar 1306 can be accurately adjusted, the slide bar 1306 is positioned at a designated position and is more stable and less prone to moving, and the situation that the oblique inserting rollers 12 support the tube blank 19 due to movement of the slide bar 1306 in work is avoided.

In some embodiments, referring to fig. 2 to 4, the second mounting member 1301 includes a fixing block 1301-2 and two mounting blocks 1301-1 oppositely disposed on the fixing block 1301-2, a mounting space for mounting the oblique insertion roller 12 is formed between the two mounting blocks 1301-1, the fixing block 1301-2 is connected to the supporting base 1303, and two ends of the oblique insertion roller 12 are rotatably connected to the two mounting blocks 1301-1, respectively.

The oblique insertion roller 12 is arranged in the installation space, the fixed blocks 1301-2 cannot be affected when the oblique insertion roller 12 rotates, and when the fixed blocks 1301-2 slide along the sliding grooves, the oblique insertion roller 12 can also slide along the fixed blocks 1301-2, so that the angle of the oblique insertion roller 12 is adjusted. The device adopts a simple structure to realize the adjustment of the angle of the oblique inserting roller 12, and simultaneously, the connection relation between the oblique inserting roller and the mounting block 1301-1 is not influenced.

Optionally, bearings are respectively arranged at two ends of the oblique insertion roller 12, and the mounting blocks 1301-1 are connected with the bearings through bearing seats, so that the mounting blocks 1301-1 are not affected while the oblique insertion roller 12 rotates.

In some embodiments, referring to fig. 1 and 6, the upper roller assembly includes an upper roller shaft 4, two positioning mechanisms 2, two guiding mechanisms and a third driver 1, the upper roller shaft 4 is rotatably disposed on the frame 18 with the first path as an axis, two ends of the upper roller shaft 4 are respectively provided with external threads with opposite rotation directions, the two positioning mechanisms 2 are respectively in threaded connection with two ends of the upper roller shaft 4 for being inserted into and positioned in the openings of the tube blanks 19; the two guide mechanisms are respectively connected to the frame 18 and are used for limiting the movement of the positioning mechanism 2 in the axial direction of the upper roll shaft 4; the third driver 1 is connected with the end part of the upper roll shaft 4, and the third driver 1 is used for driving the upper roll shaft 4 to rotate by taking the first path as an axis.

The two sides of the opening of the tube blank 19 are respectively abutted against the two positioning mechanisms 2 so as to ensure the opening size of the formed tube blank 19. The guide mechanism guides the positioning mechanism 2 when the positioning mechanism 2 moves along the first path, avoiding rotation thereof. This structure is according to production requirement through the rotation of roller 4 in the drive of two third drivers 1, makes two positioning mechanism 2 with 4 threaded connection of last roller move along the radial opposite direction of first way to adjust the interval between two positioning mechanism 2, with the opening size who is applicable to different pipe, need not to change and go up the roller assembly, practiced thrift operating time, reduced manufacturing cost.

In particular, the rotational speed and the steering of the two third drives 1 are identical.

Specifically, the positioning mechanism 2 is a bearing member.

Optionally, two third drivers 1 are provided, and are respectively connected with two ends of the upper roller shaft 4.

In some embodiments, referring to fig. 1 and fig. 6, the guiding mechanism includes a positioning base 3 connected to the housing of the third driver 1, the guiding mechanism is connected to the frame 18 through the third driver 1, the positioning base 3 has a guiding plate 301 extending along the axial direction of the upper roller shaft 4, a guiding groove 2011 adapted to the guiding plate 301 is disposed on the positioning mechanism 2, and the guiding plate 301 is slidably engaged with the guiding groove 2011.

When the positioning mechanism 2 moves along the axial direction of the upper roller shaft 4, the guide groove 2011 moves along the guide piece 301, the guide groove 2011 is spliced with the guide piece 301 to guide the movement of the positioning mechanism 2, so that the deviation of the positioning mechanism 2 in the moving process is avoided, and the distance between the two positioning mechanisms 2 can be stably adjusted.

In some embodiments, referring to fig. 1 and 5, the positioning mechanism 2 includes a limiting cylinder rotatably sleeved outside the upper roller shaft 4, an annular yielding groove 202 is formed on an outer circumferential surface of the limiting cylinder, the limiting cylinder is divided into a positioning cylinder 201 and positioning pieces 203 by the yielding groove 202, the positioning pieces 203 of the two positioning mechanisms 2 are located between the positioning cylinders 201 of the two positioning mechanisms 2, a guide groove 2011 is formed on an outer circumferential surface of the positioning cylinder 201, and the positioning pieces 203 are used for abutting against two side edges of an opening of the tube blank 19.

The opening of the tube blank 19 gradually gathers to the positioning pieces 203 in the forming process until the two ends of the opening of the tube blank 19 are respectively abutted against the two positioning pieces 203, so that the opening size of the tube blank 19 is ensured, and the tube blank 19 can smoothly enter the next station for further processing. The relief groove 202 can open and relieve the blank tube 19, and can be positioned in contact with the positioning piece 203.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.