CN208680947U - It is a kind of for producing the unit of thin-walled spiral welded pipe - Google Patents

Abstract

The utility model discloses a kind of for producing the unit of thin-walled spiral welded pipe, including uncoiler, roller station, the first aligning vertical roll, delivery machine, guide plate roller group, molding machine and the rear axle set gradually, uncoiler, roller station, the first aligning vertical roll, delivery machine and guide plate roller group are arranged on preceding bridge；Preceding bridge and molding machine base are hinged, and the lower part of preceding bridge is equipped with idler wheel, and idler wheel can roll in orbit.The unit of the utility model is able to produce thin-walled spiral welded pipe, and is readily transported, and produces nearby.

Description

It is a kind of for producing the unit of thin-walled spiral welded pipe

Technical field

The utility model relates to spiral welded pipe processing appliance technical fields, more particularly to one kind for producing thin-walled spiral The unit of welded tube.

Background technique

The production technology of spiral welded pipe are as follows: raw material steel coil strip-uncoiling-roller station support-aligning vertical roll centering-delivering Online ultrasonic examination-cutting-the rear axle of the interior welding-of machine delivering-guide plate guiding-molding machine bending forming-exports steel Pipe-repair welding-finished product inspection-collection.

While plate enters molding machine, and plate is rolled into steel pipe by molding machine, the external control roller of molding machine plays stabilized steel The effect of pipe.However, existing molding machine cannot produce the stainless steel spiral welded tube that wall thickness is 0.5~1.5mm, thin-wall boards exist Wave, bending from when will appear steel plate operation in production process, misalignment when steel pipe forming, completed state is unstable, easily collapses Defect.To find out its cause, mainly there is the following: 1, molding machine external control roller quantity is few and every external control roller length is short, cannot reach Stablize the effect of steel pipe；2, every external control roller of molding machine is positioned using pressing plate, since pressing plate positioning accuracy is low, so that every outer Control roller can not achieve the accurate positioning on three-dimensional；3, edges of boards are positioned by edger roll, are easy to bend edges of boards.

In addition, traditional unit there is problems: 1, the thin-wall steel tube after molding welding is by rear axle When rollgang, since thin-wall steel tube bottom only has two groups of rollgangs, so thin-wall steel tube can be collapsed because of self weight, so that steel Plate misalignment influences the stability for forming welding process；2, not readily transportable due to thin-walled spiral welded pipe poor rigidity, it needs to produce Unit is readily transported, and is produced nearby, but traditional line configuration is complicated, and at high cost, land occupation is big, is moved constant.

Utility model content

The purpose of the utility model is to provide a kind of for producing the unit of thin-walled spiral welded pipe, to solve above-mentioned existing skill Art there are the problem of, so that unit is able to produce thin-walled spiral welded pipe, and be readily transported, nearby produce.

To achieve the above object, the utility model provides following scheme:

The utility model provide it is a kind of for producing the unit of thin-walled spiral welded pipe, including set gradually uncoiler, Roller station, the first aligning vertical roll, delivery machine, guide plate roller group, molding machine and rear axle, the uncoiler, the roller station, described One aligning vertical roll, the delivery machine and the guide plate roller group are arranged on preceding bridge；The lower part of the preceding bridge is equipped with idler wheel, the rolling Wheel can roll in orbit；

The molding machine includes molding machine base, and the preceding bridge and the molding machine base are hinged, the molding machine base It is equipped with the second aligning vertical roll, the second roller group support and external control roller bearing,

The second roller group support is hinged with a lever, and one end of the lever is equipped with the second roller group, the lever it is another One end is connected with elevating mechanism, and the elevating mechanism can drive second roller group to turn relative to the hinge joint of the lever It is dynamic；

The front side of second roller group is equipped with the first roller group, and the front side of first roller group is equipped with second pair of neutrality Roller；The rear side of second roller group is equipped with third roller group, and first roller group and the third roller group are arranged at the molding On machine base, first roller group, second roller group and the third roller group constitute three bending shaping mechanisms；

The lower end of the external control roller bearing slidably connects the 4th roller group, and the external control roller bearing passes through the first feed screw nut Mechanism slips are connected with one end of the first external control roller support, and the other end of the first external control roller support slidably connects outside second One end of roller support is controlled, the other end of the second external control roller support is connected with one end of third external control roller support；

The first external control roller support slidably connects the 5th roller group, and the other end of the first external control roller support is equipped with the Six roller groups, the other end of the second external control roller support are equipped with the 7th roller group, and the other end of the third external control roller support slides It is connected with the 8th roller group；4th roller group, the 5th roller group, the 6th roller group, the 7th roller group and the described 8th Roller group constitutes external control roller mechanism；

It is first roller group, second roller group, the third roller group, the 4th roller group, the 5th roller group, described 6th roller group, the 7th roller group and the 8th roller group are in spiral distribution, first roller group, second roller group, described Third roller group, the 4th roller group, the 5th roller group, the 6th roller group, the 7th roller group and the 8th roller group are equal Including hold-down support and mobile support saddle, the mobile support saddle is slidably connected by dovetail groove and the hold-down support, the movement Support is equipped with length and arranges not less than the roller of steel pipe screw pitch.

Preferably, the uncoiler includes uncoiling machine base, conehead bracket, carrying roller, handwheel and worm and gear elevator, institute It states uncoiling machine base to be fixed on the preceding bridge, the conehead bracket slide is arranged on the uncoiling machine base, described Conehead is equipped on the inside of conehead bracket, the worm and gear elevator is arranged on the uncoiling machine base, the worm and gear liter The output shaft of drop machine can drive conehead bracket mobile, and the handwheel is arranged on the input shaft of the worm and gear elevator, The conehead, the worm and gear elevator, the conehead bracket and the handwheel are symmetrical set at the uncoiler bottom Seat two sides, the carrying roller are two and are rotatably arranged on the uncoiling machine base that two carrying rollers are relative to the cone Head is symmetrical arranged.

Preferably, the delivery machine include delivering rack, pressure counter weight device, delivering motor reducer, top pinch roll, under Pinch roller and synchromesh gear device, the delivery machine frame are arranged on the preceding bridge, the top pinch roll and the bottom pinch roll It is rotatablely connected with the delivering rack, the both ends of the top pinch roll connect the pressure counter weight device, the top pinch roll It can be slided up and down in the pressure sliding slot of the delivering rack, one end of the bottom pinch roll connects the delivering decelerating through motor The other end of machine, the bottom pinch roll can be connect by the synchromesh gear device with the top pinch roll.

Preferably, the rear axle includes rear axle rack and reduction lever apparatus, and it is one group that the reduction lever apparatus, which is seven, institute It states and is axially arranged with reduction lever apparatus described in several groups along steel pipe in rear axle rack；The reduction lever apparatus include Universal support wheel, Reduction head, small round nut, reduction axis, tight fixed bolt and axle sleeve, the axle sleeve are installed in the rear axle rack, the reduction axis One end be interspersed in the axle sleeve, the axle sleeve is equipped with the tight fixed bolt for limiting the reduction axis, the liter The other end of contracting axis is connect with the threaded one end of the reduction head, and the reduction head is equipped with the roundlet spiral shell for fastening Mother, the other end of the reduction head are fixedly connected with the Universal support wheel, and the Universal support wheel is circumferentially under supporting steel pipe Half part.

Preferably, the guide plate roller group includes several upper deflector rolls and lower guide roll for being arranged, and the upper deflector roll is located at On the upside of steel plate, the lower guide roll is located on the downside of steel plate, the guide plate of the upper deflector roll and the lower guide roll with the guide plate roller group Holder pivots connection, the guide plate bracket are fixed on the preceding bridge, and guide plate roller group two sides are equipped with third to neutrality Roller.

Preferably, first roller group include the first roller group pedestal, the first roller group pedestal be fixed at it is described at On type machine base, sliding support is fixed on the first roller group pedestal, the sliding support slidably connects sliding seat, institute The hold-down support for stating the first roller group is arranged on the sliding seat, and there are two roller groups to go up and down for the downside connection of the sliding seat The output shaft of machine, the input shafts of two roller group elevators is by the first synchronous axis connection, and the one of the first roller group pedestal End is equipped with bonding pad roll, and the bonding pad roll is located at the downside of second roller group, and the molding machine base is equipped with independent rollers.

Preferably, the third roller group includes third roller group pedestal, the third roller group pedestal be fixed at it is described at On type machine base, the third roller group pedestal slidably connects Mobile base, and there are two roller groups to move for one end connection of the Mobile base The output shaft of motivation, the other end of the Mobile base are connected with the hold-down support of third roller group, and two roller groups are mobile The input shaft of machine passes through the second synchronous axis connection.

Preferably, described hold-down support one end is connected with adjustable plate, and internal screw thread, the movement are offered on the adjustable plate Support is rotatably connected to the one end for adjusting screw rod close to one end of the adjustable plate, and the adjusting screw rod passes through with the adjustable plate The internal screw thread connection, the adjusting screw rod rotation can drive the mobile support saddle to slide relative to the hold-down support.

Preferably, the roller is arranged is made of several roller assemblies, and the roller assembly includes roller seat, the roller seat upper end Equipped with the retainer ring for being clamped with the mobile support saddle, the lower end of the roller seat is rotatably connected to roller, the roller by roll shaft Axis is fixedly connected by pressing plate with the roller seat, and cage ring, the roll shaft are equipped between the two sides of the roller and the roller seat One end be equipped with pump nozzle, the pump nozzle is connected with the oil leab in the roll shaft, and the side of all roller seats is equal It is hinged with an angular adjustment bar, one end of the mobile support saddle is connected with an adjusting screw rod, the adjusting screw rod and the angle Adjusting rod is hinged, and the adjusting screw rod is equipped with locking nut, and the adjusting screw rod rotation can pass through the angular adjustment bar Adjust deflection angle of the roll shaft relative to the mobile support saddle；Positioned at the roller of the roller assembly of inlet pipe side Circumferential middle part is equipped with positioning step.

Preferably, the other end of the first external control roller support is connected by one end of sliding slot and the second external control roller support It connects, sliding nut, the second external control roller support rotation is fixed on the end face of the other end of the first external control roller support It is connected with a lead screw, the lead screw is connected through a screw thread with the sliding nut, and the lead screw rotation can drive described second External control roller support is slided relative to the first external control roller support；The first external control roller support is rotatably connected to roller group lead screw, It is connected with the roller group sliding nut that the roller group lead screw is mutually equipped with the hold-down support of the 5th roller group.

The utility model achieves following technical effect compared with the existing technology:

First roller group, the second roller group and third roller group three bending shaping mechanisms of composition of the utility model, the 4th roller group, 5th roller group, the 6th roller group, the 7th roller group and the 8th roller group constitute external control roller mechanism；The roller group quantity of the application is more and long, And all roller groups are in spiral distribution, realize the full envelope by steel pipe on a screw pitch direction, can reach stable steel pipe Effect.And roller group can be realized the accurate positioning on three-dimensional, positioned at the circumferential direction of the roller of the roller assembly of inlet pipe side Middle part is equipped with positioning step, and steel pipe can be prevented along axial float, edges of boards are protected, so that steel pipe is not easy to become because of self weight Shape collapses.

In the utility model rear axle use multi-point support with guarantee molding welding after thin-wall steel tube do not collapsed because of self weight, Steel plate misalignment is avoided, steel plate misalignment is avoided to provide stable state for the molding welding process of upper one of work.

The unit production chains of the utility model are high, are able to produce the thin-wall steel tube of different helical angles, and unit weight Gently, it takes up little area, disassembly is easy to assembly, is readily transported, can satisfy the requirement produced nearby.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this A little attached drawings obtain other attached drawings.

Fig. 1 is the schematic view of the front view for the unit that the utility model is used to produce thin-walled spiral welded pipe；

Fig. 2 is the schematic cross-sectional view in Fig. 1 at B-B；

Fig. 3 is the partial enlarged view in Fig. 2 at C；

Fig. 4 the utility model is used to produce the attached view structural schematic diagram of the unit of thin-walled spiral welded pipe；

Fig. 5 is the schematic view of the front view of molding machine in the utility model；

Fig. 6 is the left view structural representation of molding machine in the utility model；

Fig. 7 is the overlooking structure diagram of molding machine in the utility model；

Fig. 8 is the schematic view of the front view of roller group in the utility model；

Fig. 9 is the left view structural representation of roller group in the utility model；

Figure 10 is the overlooking structure diagram of roller group in the utility model；

Figure 11 is the structural schematic diagram of roller assembly in the utility model；

Figure 12 is the structural schematic diagram of the second aligning vertical roll in the utility model；

Figure 13 is the schematic view of the front view of the first roller group in the utility model；

Figure 14 is the left view structural representation of the first roller group in the utility model；

Figure 15 is the overlooking structure diagram of the first roller group in the utility model；

Figure 16 is the schematic view of the front view of third roller group in the utility model；

Figure 17 is the left view structural representation of third roller group in the utility model；

Figure 18 is the overlooking structure diagram of third roller group in the utility model；

Wherein: 100- uncoiler, 101- conehead bracket, 102- carrying roller, 103- handwheel, 104- worm and gear elevator, 105 Uncoiling machine base；

200- roller station；

The first aligning vertical roll of 300-；

400- delivery machine, 401- deliver rack, and 402- depresses counter weight device, and 403- delivers motor reducer, presss from both sides on 404- Send roller, 405- bottom pinch roll；

500- guide plate roller group, 501- third aligning vertical roll；

600- molding machine, 601- form machine base, 602- aligning vertical roll, 603- the second roller group support, 604- external control roller branch Seat, the second roller group of 605-, the first roller group of 606-, 607- third roller group, the 4th roller group of 608-, the first leadscrew-nut mechanism of 609-, 610- the first external control roller support, 611- the second external control roller support, 612- third external control roller support, the 5th roller group of 613-, 614- Six roller groups, the 7th roller group of 615-, the 8th roller group of 616-, 617- centering pedestal, the second leadscrew-nut mechanism of 618-, 619- centering branch Frame, 620- centring roll, 621- bonding pad roll, 622- lever, 623- independent rollers, 624- sliding nut, 625- lead screw, the fixed branch of 626- Seat, 627- mobile support saddle, 628- adjustable plate, 629- adjusting screw rod, 630- roller seat, 631- retainer ring, 632- roll shaft, 633- roller, 634- pressing plate, 635- cage ring, 636- pump nozzle, 637- angular adjustment bar, 638- adjusting screw rod, 639- locking nut, 640- Positioning step, 641- roller group lead screw, 642- the first roller group pedestal, 643- sliding support, 644- sliding seat, the lifting of 645- roller group Machine, the first synchronizing shaft of 646-, 647- third roller group pedestal, 648- Mobile base, 649- roller group moving machine, the second synchronizing shaft of 650-；

700- rear axle, 701- rear axle rack, 702- Universal support wheel, 703- reduction head, the small round nut of 704-, 705- reduction Axis, 706- tight fixed bolt, 707- axle sleeve；

Bridge before 800-, 801- idler wheel, 802- track.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise not made the creative labor Under every other embodiment obtained, fall within the protection scope of the utility model.

The purpose of the utility model is to provide a kind of for producing the unit of thin-walled spiral welded pipe, to solve above-mentioned existing skill Art there are the problem of, so that unit is able to produce thin-walled spiral welded pipe, and be readily transported, nearby produce.

To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have Body embodiment is described in further detail the utility model.

Present embodiments provide as shown in Figure 1: it is a kind of for producing the unit of thin-walled spiral welded pipe, including what is set gradually Uncoiler 100, roller station 200, the first aligning vertical roll 300, delivery machine 400, guide plate roller group 500, molding machine 600 and rear axle 700, An also settable pipe cutting machine between molding machine 600 and rear axle 700, when the output of rear axle 700 reaches scale, by cut-to-length control system It signals, control pipe cutting machine carries out steel pipe cutting operation.Uncoiler 100, roller station 200, the first aligning vertical roll 300, delivery machine 400 and guide plate roller group 500 be arranged on preceding bridge 800；The lower part of preceding bridge 800 is equipped with idler wheel 801, and idler wheel 801 can be in track 802 Upper rolling, the center line of preceding bridge 800 and the angle of steel pipe center line are adjustable in the range of 40 ° -80 °, which is to produce The helical angle of steel pipe out.

Specifically, uncoiler 100 includes uncoiling machine base 105, conehead bracket 101, carrying roller 102, handwheel 103 and worm gear snail Bar elevator 104, before uncoiling machine base 105 is fixed on bridge 800, conehead bracket 101 is arranged in uncoiling machine base 105 On, and conehead bracket 101 can slide in the direction of the width relative to uncoiling machine base 105, the setting of worm and gear elevator 104 exists On uncoiling machine base 105, conehead is equipped on the inside of conehead bracket 101, the output shaft of worm and gear elevator 104 can drive conehead Bracket 101 is mobile, and handwheel 103 is arranged on the input shaft of worm and gear elevator 104, conehead, worm and gear elevator 104, Conehead bracket 101 and handwheel 103 are symmetrical set in 105 two sides of uncoiling machine base, and carrying roller 102 is two and rotation setting On uncoiling machine base 105, two carrying rollers 102 are symmetrical arranged relative to before and after conehead.When coil of strip is placed on uncoiler 100 by crane Bipyramid head between after, with handwheel 103 and worm and gear elevator 104 is driven to make conehead bracket 101 is mobile to clamp coil of strip, can be with Guarantee the arbitrary distance of run that conehead is retreated, after making coil of strip center centering unit centre, steel taping head is sent into delivery machine 400 manually.

Delivery machine 400 is the active force of unit, is used for molding gross thrust.Delivery machine 400 includes delivering rack 401, pressure Lower counter weight device 402, delivering motor reducer 403, top pinch roll 404, bottom pinch roll 405 and synchromesh gear device, delivery machine Frame 401 is arranged on preceding bridge 800, and top pinch roll 404 and bottom pinch roll 405 are rotatablely connected with delivering rack 401, top pinch roll 404 both ends connection pressure counter weight device 402, top pinch roll 404 upper in the pressure sliding slot of delivering rack 401 can glide It is dynamic, it is ensured that the both ends depressing force of top pinch roll 404 is identical, makes steel plate will not sideslip and production cost in delivery process It is low, it is easy to maintenance.One end connection delivering motor reducer 403 of bottom pinch roll 405, the other end of bottom pinch roll 405 can lead to It crosses synchromesh gear device to connect with top pinch roll 404, has skidded phenomenon in delivery process to avoid steel plate, passing steel plate During sending will not sideslip, delivery rate is optional in 0.5-2.6m/min.

Guide plate roller group 500 includes several upper deflector rolls and lower guide roll for being arranged, and upper deflector roll is located at steel plate upside, under lead Roller is located on the downside of steel plate, and upper deflector roll and lower guide roll are connect with the guide plate holder pivots of guide plate roller group 500, and the fixation of guide plate bracket is set It sets on preceding bridge 800,500 two sides of guide plate roller group are equipped with third aligning vertical roll 501.

Molding machine 600 includes molding machine base 601, and molding machine base 601 is equipped with the second aligning vertical roll 602, the second roller Group support 603 and external control roller bearing 604, the second roller group support 603 are hinged with a lever 622, and one end of lever 622 is equipped with second Roller group 605, the other end of lever are connected with elevating mechanism, and elevating mechanism can drive the second roller group 605 relative to the lever Hinge joint rotation, the second roller group 605 keeps horizontal when normal work, and elevating mechanism can be manual lifting mechanism, hydraulic liter Any one of descending mechanism, electric threaded shaft, and it is preferably provided with graduated scale or range sensor, so that the pressure of the second roller group 605 Amount can be shown.

The front side (direction of steel plate supplied materials) of second roller group 605 is equipped with the first roller group 606, and the front side of the first roller group 606 is set There is the second aligning vertical roll 602；Specifically, the second aligning vertical roll 602 includes centering pedestal 617, and the setting of centering pedestal 617 is forming On machine base 601, centering pedestal 617 slidably connects a centering bracket by two the second leadscrew-nut mechanisms 618 respectively 619, the second leadscrew-nut mechanism 618, which can be used, to be manually adjusted or the form of electric drive, and two the second leadscrew-nut mechanisms 618 is non-interference and do not link, and each centering bracket 619 is rotatably connected to one with reeded centring roll 620, centring roll 620 are located at the both ends (left and right sides of steel plate) of the first roller group 606, and two specific positions of centring roll 620 are to meet steel Subject to the helical angle of plate.The rear side (direction that steel plate is advanced) of second roller group 605 is equipped with third roller group 607,606 He of the first roller group Third roller group 607 is arranged on molding machine base 601.Specifically, the first roller group 606 include the first roller group pedestal 642, first Roller group pedestal 642 is fixed on molding machine base 601, and sliding support 643 is fixed on the first roller group pedestal 642, sliding Dynamic support 643 slidably connects sliding seat 644, and the hold-down support 626 of the first roller group 606 is arranged on sliding seat 644, sliding seat There are two the output shaft of roller group elevator 645, the input shaft of two roller group elevators 645 is same by first for 644 downside connection It walks axis 646 to connect, roller group elevator 645 can drive the first roller group 606 to move in the height direction, the first roller group pedestal 642 One end be equipped with bonding pad roll 621, in order to automatic submerged-arc welding steel plate adjacent edges of boards, speed of welding is in 0.5-2.0m/min Interior adjustable, bonding pad roll 621 is located at the downside of the second roller group 605, forms and is additionally provided with independent rollers 623, independent rollers on machine base 601 623 are used for independent Auxiliary support steel pipe.Third roller group 607 includes third roller group pedestal 647, and the fixation of third roller group pedestal 647 is set It sets on molding machine base 601, third roller group pedestal 647 slidably connects Mobile base 648, and one end of Mobile base 648 is connected with The output shaft of two roller group moving machines 649, the other end of Mobile base 648 are connected with the hold-down support 626 of third roller group 607, and two The input shaft of a roller group moving machine 649 is connected by the second synchronizing shaft 650, and roller group moving machine 649 can drive third roller group 607 Along moving radially for steel pipe.First roller group 606, the second roller group 605 and third roller group 607 constitute three bending shaping mechanisms.

The lower end of external control roller bearing 604 slidably connects the 4th roller group 608, and the 4th roller group 608 is located at steel pipe at work Lower left side, the 4th roller group 608, which passes through the sliding slot that is obliquely installed, can adjust its position relative to steel pipe in height and radially It sets, to adapt to the steel pipe of production different-diameter.

External control roller bearing 604 slidably connects the one of the first external control roller support 610 by the first leadscrew-nut mechanism 609 End, the first leadscrew-nut mechanism 609 are preferably driven using motor via reducer, and the other end of the first external control roller support 610 is sliding Dynamic one end for being connected with the second external control roller support 611, the other end of the second external control roller support 611 are connected with third external control roller support The form being slidably connected can also be used in 612 one end, third external control roller support 612 and the second external control roller support 611.Specifically, The other end of first external control roller support 610 is connect by sliding slot with one end of the second external control roller support 611, the first external control roller support Sliding nut 624 is fixed on the end face of 610 other end, the second external control roller support 611 is rotatably connected to a lead screw 625, Lead screw 625 is connected through a screw thread with sliding nut 624, and the rotation of lead screw 625 can drive the second external control roller support 611 relative to the The sliding of one external control roller support 610.

The downside of first external control roller support 610 slidably connects the 5th roller group 613, and the 5th roller group 613 is located at work The upper left side of steel pipe, specifically, the first external control roller support 610 are rotatably connected to roller group lead screw 641, match with roller group lead screw 641 The roller group sliding nut of dress is connected with the hold-down support 626 of the 5th roller group 613, and the 5th roller group 613 is by adjusting the first external control The height of roller support 610 and its position in the first external control roller support 610 adjust it relative to steel pipe in height and diameter Upward position.The other end of first external control roller support 610 is equipped with the 6th roller group 614, and the 6th roller group 614 is located at steel at work The positive upside of pipe, the 6th roller group 614 adjust it with steel pipe in the height direction by adjusting the height of the first external control roller support 610 Relative position, the other end of the second external control roller support 611 is equipped with the 7th roller group 615, and the 7th roller group 615 is located at steel at work The upper right side of pipe, 611 phase of height and the second external control roller support that the 7th roller group 615 passes through the first external control roller support 610 of adjusting Its position relative to steel pipe in height and radially, and the 7th roller group are adjusted for the position of the first external control roller support 610 615 can also be inconsistent in short transverse with the 5th roller group 613, be specifically subject to roller 633 can reliable and stable ground supporting steel pipe, 7th roller group 615 is preferably able to the sliding in the radial direction relative to the second external control roller support 611 in steel pipe.Third external control roller branch The other end of frame 612 slidably connects the 8th roller group 616, and the 8th roller group 616 can be relative to third by leadscrew-nut mechanism External control roller support 612 is radially slided along steel pipe, and the 8th roller group 616 is located at the directly to the right of steel pipe, the 8th roller group 616 at work It can be by adjusting the height of the first external control roller support 610, the second external control roller support 611 relative to the first external control roller support 610 Position and the 8th roller group 616 adjust it relative to the position (short transverse and steel pipe are radial) of third external control roller support 612 Relative to the position of steel pipe in height and radially.4th roller group 608, the 5th roller group 613, the 6th roller group 614, the 7th roller group 615 and the 8th roller group 616 constitute external control roller mechanism.

First roller group 606, the second roller group 605, third roller group 607, the 4th roller group 608, the 5th roller group 613, the 6th roller group 614, the 7th roller group 615 and the 8th roller group 616 are in spiral distribution on steel pipe axial direction.First roller group 606, the second roller group 605, third roller group 607, the 4th roller group 608, the 5th roller group 613, the 6th roller group 614, the 7th roller group 615 and the 8th roller group 616 It include hold-down support 626 and mobile support saddle 627, mobile support saddle 627 is slidably connected by dovetail groove with hold-down support 626, is led to The position for overregulating mobile support saddle 627 can adjust the position of each roller group in the axial direction relative to steel pipe, so that each roller group Position can be adjusted on three-dimensional relative to steel pipe, with abundant supporting steel pipe.

Specifically, each 626 one end of hold-down support is connected with adjustable plate 628, and internal screw thread is offered on adjustable plate 628, moves Dynamic support 627 is rotatably connected to the one end for adjusting screw rod 629 close to one end of adjustable plate 628, adjusts screw rod 629 and adjustable plate 628 are connected by internal screw thread, and adjusting the rotation of screw rod 629 can drive mobile support saddle 627 to slide relative to hold-down support 626.It moves Dynamic support 627 is equipped with length and arranges not less than the roller of steel pipe screw pitch, it is preferable that the length of roller column is greater than a screw pitch, to reach Stablize the effect of steel pipe, roller is arranged to be made of several roller assemblies, and roller assembly includes roller seat 630, and 630 upper end of roller seat, which is equipped with, to be used Roller 633, roll shaft are rotatably connected to by roll shaft 632 in the lower end of the retainer ring 631 being clamped with mobile support saddle 627, roller seat 630 632 are fixedly connected by pressing plate 634 with roller seat 630, and cage ring 635, roll shaft are equipped between the two sides and roller seat 630 of roller 633 632 one end is equipped with pump nozzle 636, and pump nozzle 636 is connected with the oil leab in roll shaft 632, in order to lubricate roller 633 Reduce friction.Also, the circumferential middle part for being located at the roller 633 of the roller assembly of inlet pipe side is equipped with positioning step 640, prevents steel pipe Axial float protects edges of boards.The side of all roller seats 630 is hinged with an angular adjustment bar 637, one end of mobile support saddle 627 It is connected with an adjusting screw rod 638, adjusting screw rod 638 and angular adjustment bar 637 are hinged, and adjusting screw rod 638 is equipped with locking nut 639, the rotation of adjusting screw rod 638 can adjust deflection angle of the roll shaft 632 relative to mobile support saddle 627 by angular adjustment bar 637 Degree.It can also be not provided with adjusting screw rod 638 in first roller group 606 and the second roller group 605, by angular adjustment bar 637 and movement One end of support 627 is respectively articulated with a screw rod, and using a casing with positive and negative internal screw thread be separately connected the two screw rods with Achieve the purpose that adjust 632 deflection angle of roll shaft.

The first roller group 606, the second roller group 605 and the third roller group 607 of molding machine 600 constitute three bending shaping mechanisms, 4th roller group 608, the 5th roller group 613, the 6th roller group 614, the 7th roller group 615 and the 8th roller group 616 constitute external control roller mechanism.At The roller group quantity of type machine 600 is more and long, and all roller groups are in spiral distribution, realize steel pipe in a screw pitch direction On full envelope, can have the function that stable steel pipe.So that the present embodiment thin-walled spiral welded pipe molding machine is able to produce wall thickness is 0.5~1.5mm, diameter are the thin-walled spiral welded pipe of φ 219- φ 1220mm.

Rear axle 700 includes rear axle rack 701 and reduction lever apparatus, and it is one group that reduction lever apparatus, which is seven, rear axle rack 701 On along steel pipe be axially arranged with several groups reduction lever apparatus；Reduction lever apparatus includes Universal support wheel 702, reduction head 703, roundlet spiral shell Mother 704, reduction axis 705, tight fixed bolt 706 and axle sleeve 707, axle sleeve 707 are installed in rear axle rack 701, and the one of reduction axis 705 End is interspersed in axle sleeve 707, and axle sleeve 707 is equipped with tight fixed bolt 706 for limiting reduction axis 705, reduction axis 705 it is another End is connect with the threaded one end of reduction head 703, and reduction head 703 is equipped with the small round nut 704 for fastening, reduction head 703 The other end is fixedly connected with Universal support wheel 702, the lower half portion of the circumferentially supporting steel pipe of Universal support wheel 702.Reduction axis 705 is pacified It among the axle sleeve 707 of rack, after being manually adjusted to certain position, is fixed by tight fixed bolt 706, reduction head 703 and liter Contracting axis 705 is threadedly coupled, and fine tuning stroke is adjusted by screw thread, after being manually adjusted to certain position, is consolidated by small round nut 704 It is fixed；Universal support wheel 702 is fixed on reduction head 703, the adjustment angle that can be servo-actuated with the rotation of steel pipe.Every group of telescopic rod Device is seven, is arranged in below steel pipe radius；Multi-point support is to guarantee the thin-wall steel tube after molding welding not due to self weight It collapses, avoids steel plate misalignment, the molding welding process for upper one of work provides stable state.

The application method of the unit of the present embodiment are as follows: after coil of strip is placed between the bipyramid head of uncoiler 100 by crane, use hand Wheel 103 simultaneously drives worm and gear elevator 104 to make conehead bracket 101 is mobile to clamp coil of strip, makes coil of strip center centering unit centre, Coil of strip is clamped, draws band steel toe manually, by roller station 200 and to feeding delivery machine 400 after the first aligning vertical roll 300.Delivering Machine 400 is unit total output, and strip is re-fed into guide plate roller group 500 by delivery machine 400, then enters through guide plate roller group 500 and forms Three bending of machine is shaped to steel pipe, while weld in automatic submerged-arc in molding biting point.Then steel pipe is molded, passes through rear axle It when 700 outputs reach scale, is signaled by cut-to-length control system, control pipe cutting machine carries out steel pipe cutting operation.

It applies specific case in this specification to be expounded the principles of the present invention and embodiment, the above reality The explanation for applying example is merely used to help understand the method and its core concept of the utility model；Meanwhile for the general of this field Technical staff, based on the idea of the present invention, there will be changes in the specific implementation manner and application range.To sum up institute It states, the content of the present specification should not be construed as a limitation of the present invention.

Claims (10)

1. a kind of for producing the unit of thin-walled spiral welded pipe, it is characterised in that: including set gradually uncoiler, roller station, First aligning vertical roll, delivery machine, guide plate roller group, molding machine and rear axle, the uncoiler, the roller station, first centering Edger roll, the delivery machine and the guide plate roller group are arranged on preceding bridge；The lower part of the preceding bridge is equipped with idler wheel, and the idler wheel can It rolls in orbit；

The molding machine includes molding machine base, and the preceding bridge and the molding machine base are hinged, set on the molding machine base There are the second aligning vertical roll, the second roller group support and external control roller bearing,

The second roller group support is hinged with a lever, and one end of the lever is equipped with the second roller group, the other end of the lever It is connected with elevating mechanism, the elevating mechanism can drive second roller group to rotate relative to the hinge joint of the lever；

The front side of second roller group is equipped with the first roller group, and the front side of first roller group is equipped with second aligning vertical roll；Institute The rear side for stating the second roller group is equipped with third roller group, and first roller group and the third roller group are arranged at the molding machine base On, first roller group, second roller group and the third roller group constitute three bending shaping mechanisms；

The lower end of the external control roller bearing slidably connects the 4th roller group, and the external control roller bearing passes through the first leadscrew-nut mechanism One end of the first external control roller support is slidably connected, the other end of the first external control roller support slidably connects the second external control roller The other end of one end of bracket, the second external control roller support is connected with one end of third external control roller support；

The first external control roller support slidably connects the 5th roller group, and the other end of the first external control roller support is equipped with the 6th roller The other end of group, the second external control roller support is equipped with the 7th roller group, and the other end of the third external control roller support is slidably connected There is the 8th roller group；4th roller group, the 5th roller group, the 6th roller group, the 7th roller group and the 8th roller group Constitute external control roller mechanism；

First roller group, second roller group, the third roller group, the 4th roller group, the 5th roller group, the described 6th Roller group, the 7th roller group and the 8th roller group are in spiral distribution, first roller group, second roller group, the third Roller group, the 4th roller group, the 5th roller group, the 6th roller group, the 7th roller group and the 8th roller group include Hold-down support and mobile support saddle, the mobile support saddle are slidably connected by dovetail groove and the hold-down support, the mobile support saddle The roller that length is equipped with not less than steel pipe screw pitch arranges.

2. according to claim 1 for producing the unit of thin-walled spiral welded pipe, it is characterised in that: the uncoiler includes Uncoiling machine base, conehead bracket, carrying roller, handwheel and worm and gear elevator, the uncoiling machine base be fixed at it is described before On bridge, the conehead bracket slide is arranged on the uncoiling machine base, and conehead, the worm gear are equipped on the inside of the conehead bracket Worm screw elevator is arranged on the uncoiling machine base, and the output shaft of the worm and gear elevator can drive conehead bracket to move Dynamic, the handwheel is arranged on the input shaft of the worm and gear elevator, the conehead, the worm and gear elevator, institute It states conehead bracket and the handwheel is symmetrical set in uncoiling machine base two sides, the carrying roller is two and rotation is set It sets on the uncoiling machine base, two carrying rollers are symmetrical arranged relative to the conehead.

3. according to claim 1 for producing the unit of thin-walled spiral welded pipe, it is characterised in that: the delivery machine includes Deliver rack, pressure counter weight device, delivering motor reducer, top pinch roll, bottom pinch roll and synchromesh gear device, the delivering Rack is arranged on the preceding bridge, and the top pinch roll and the bottom pinch roll are rotatablely connected with the delivering rack, described The both ends of top pinch roll connect the pressure counter weight device, and the top pinch roll can be in the pressure sliding slot of the delivering rack It slides up and down, one end of the bottom pinch roll connects the delivering motor reducer, and the other end of the bottom pinch roll can lead to The synchromesh gear device is crossed to connect with the top pinch roll.

4. according to claim 1 for producing the unit of thin-walled spiral welded pipe, it is characterised in that: after the rear axle includes Bridge rack and reduction lever apparatus, it is one group that the reduction lever apparatus, which is seven, if being axially arranged in the rear axle rack along steel pipe The dry group reduction lever apparatus；The reduction lever apparatus includes Universal support wheel, reduction head, small round nut, reduction axis, clamp screw Bolt and axle sleeve, the axle sleeve are installed in the rear axle rack, and one end of the reduction axis is interspersed in the axle sleeve, the axis Put on the tight fixed bolt being equipped with for limiting the reduction axis, one end of the other end of the reduction axis and the reduction head It is threadedly coupled, the reduction head is equipped with the small round nut for fastening, and the other end of the reduction head is fixedly connected with institute State Universal support wheel, the lower half portion of the Universal support wheel circumferentially supporting steel pipe.

5. according to claim 1 for producing the unit of thin-walled spiral welded pipe, it is characterised in that: the guide plate roller group packet The upper deflector roll and lower guide roll that several are arranged are included, the upper deflector roll is located on the upside of steel plate, and the lower guide roll is located under steel plate Side, the upper deflector roll and the lower guide roll are connect with the guide plate holder pivots of the guide plate roller group, and the guide plate bracket is fixed It is arranged on the preceding bridge, guide plate roller group two sides are equipped with third aligning vertical roll.

6. according to claim 1 for producing the unit of thin-walled spiral welded pipe, it is characterised in that: the first roller group packet The first roller group pedestal is included, the first roller group pedestal is fixed on the molding machine base, on the first roller group pedestal It is fixed with sliding support, the sliding support slidably connects sliding seat, the hold-down support setting of first roller group On the sliding seat, there are two the output shaft of roller group elevator, two roller group liftings for the downside connection of the sliding seat The input shaft of machine is equipped with bonding pad roll by the first synchronous axis connection, one end of the first roller group pedestal, and the bonding pad roll is located at The downside of second roller group, the molding machine base are equipped with independent rollers.

7. according to claim 1 for producing the unit of thin-walled spiral welded pipe, it is characterised in that: the third roller group packet Third roller group pedestal is included, the third roller group pedestal is fixed on the molding machine base, and the third roller group pedestal is sliding It is dynamic to be connected with Mobile base, one end connection of the Mobile base there are two the output shaft of roller group moving machine, the Mobile base it is another End is connected with the hold-down support of third roller group, and the input shaft of two roller group moving machines passes through the second synchronous axis connection.

8. according to claim 1 for producing the unit of thin-walled spiral welded pipe, it is characterised in that: the hold-down support one End is connected with adjustable plate, and internal screw thread is offered on the adjustable plate, and the mobile support saddle is rotated close to one end of the adjustable plate It is connected with the one end for adjusting screw rod, the adjusting screw rod is connect with the adjustable plate by the internal screw thread, the adjusting screw rod Rotation can drive the mobile support saddle to slide relative to the hold-down support.

9. according to claim 1 for producing the unit of thin-walled spiral welded pipe, it is characterised in that: the roller is arranged by several A roller assembly is constituted, and the roller assembly includes roller seat, and the roller seat upper end is equipped with for being clamped with the mobile support saddle The lower end of retainer ring, the roller seat is rotatably connected to roller by roll shaft, and the roll shaft is fixedly connected by pressing plate with the roller seat, Be equipped with cage ring between the two sides of the roller and the roller seat, one end of the roll shaft is equipped with pump nozzle, the pump nozzle with Oil leab in the roll shaft is connected, and the side of all roller seats is hinged with an angular adjustment bar, the mobile branch One end of seat is connected with an adjusting screw rod, and the adjusting screw rod and the angular adjustment bar are hinged, and the adjusting screw rod is equipped with Locking nut, the adjusting screw rod rotation can adjust the roll shaft relative to the mobile support saddle by the angular adjustment bar Deflection angle；Circumferential middle part positioned at the roller of the roller assembly of inlet pipe side is equipped with positioning step.

10. according to claim 1 for producing the unit of thin-walled spiral welded pipe, it is characterised in that: first external control The other end of roller support is connect by sliding slot with one end of the second external control roller support, the first external control roller support it is another Be fixed with sliding nut on the end face at end, the second external control roller support is rotatably connected to a lead screw, the lead screw with it is described Sliding nut is connected through a screw thread, and the lead screw rotation can drive the second external control roller support relative to first external control Roller support sliding；The first external control roller support is rotatably connected to roller group lead screw, and the roller group being mutually equipped with the roller group lead screw is sliding Dynamic nut is connected with the hold-down support of the 5th roller group.