CN203886965U - Forming mold of helical welding pipe with stainless steel structure - Google Patents
Forming mold of helical welding pipe with stainless steel structure Download PDFInfo
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- CN203886965U CN203886965U CN201420268407.8U CN201420268407U CN203886965U CN 203886965 U CN203886965 U CN 203886965U CN 201420268407 U CN201420268407 U CN 201420268407U CN 203886965 U CN203886965 U CN 203886965U
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Abstract
The utility model discloses a forming mold of a helical welding pipe with a stainless steel structure. A helical welding pipe body with the stainless steel structure is formed by one stainless steel band through continuously spirally twisting and abut-jointing; a spiral reinforcing rib is arranged outside the pipe body, one flanging of the reinforcing rib is welded with the outer walls of the pipe body at two sides of the joint, the other flanging of the reinforcing rib is welded with the outer wall of the pipe body at one side of the joint, a forming mold body of the forming mold is of a flange plate structure, a demising groove is formed at the front side of the large-diameter section of the mold body, a welding gun demising groove is formed at the lower part of the small-diameter section of the mold body, bearings are arranged at the outer edge of the small-diameter section of the right part of the mold body circumferentially and axially, a rotating shaft of each bearing is clamped in the groove of the outer wall of the mold body, and the same inclination angle is formed between the axial lead of each bearing and the axial lead of the mold body. The forming mold is arranged on a forming machine of the helical welding pipe with the stainless steel structure and enables the stainless steel band to be continuously and spirally twisted on the mold body to form the helical welding pipe body through automatic abut-jointing.
Description
Technical field
The utility model belongs to mining pipeline production field, specifically, relates to a kind of mould of stainless steel structure spiral welded pipe.
Background technology
Spiral welded pipe is a kind of important mining pipeline, and it is mainly used at mine down-hole suction gas, and the important technology of spiral welded pipe to require be that ring stiffness is high and completely can be fire-retardant.Existing spiral welded pipe is straight tube, and by being welded after sheet material distortion.Existing spiral welded pipe is made up of carbon steel, in order to ensure enough ring stiffness, the thickness of this carbon steel spiral welded pipe does thicklyer, be generally 10mm left and right, so just cause its weight heavier, not only manufacturing cost is high, and transport, install very inconvenient, particularly in the mine laneway of narrow space.
Another kind of made by the high plastics of fire-retardant coefficient, because plastics are very light, so just can under guarantee enough encircles the prerequisite of stiffness, alleviate the weight of pipeline, thereby greatly facilitate transport and the installation of pipeline; But plastics have very high fire-retardant coefficient and do not represent that it can not burn completely, some in particular cases plastics still can burn, so just bring serious potential safety hazard.
Chinese patent ZL201320079613.X discloses a kind of carbon steel on July 31st, 2013 and has strengthened stainless steel structure spiral welded pipe, this spiral welded pipe comprises rectilinear body, this body is made up of one group of coaxial pipeline section, and on body, form a spiral weld after the relative position welding of adjacent two pipeline sections, the center line of this spiral weld overlaps with the center line of body, it is characterized in that: described body is made up of stainless steel, on the outer wall of body, be provided with a spirality convex rib, the center line of this spirality convex rib overlaps with the center line of body.The relative position of adjacent two pipeline sections is connected by overlap joint welding resistance, and on the inwall of body, forms a spiral weld after welding; Spirality convex rib is positioned at spiral weld the right, the cross section of spirality convex rib is circular arc, the left end of this circular arc is structure as a whole with the lap segment of corresponding pipeline section right part, and the right-hand member of circular arc is provided with in-flanges, and this in-flanges is close to a pipeline section outer wall with the welding of corresponding pipeline section right part.Body is provided with a spirality reinforcement outward, and the center line of this spirality reinforcement overlaps with the center line of body; Spirality reinforcement is located in spirality convex rib simultaneously, and the cross section of spirality reinforcement is circular arc, the outer wall of this circular arc and the inwall of spirality convex rib are close to, and one end of circular arc and the outer wall of body be close to, and the in-flanges of its other end and spirality convex rib is close to.
Strengthen in the process of stainless steel structure spiral welded pipe at the above-mentioned carbon steel of production, we find by being bent to form after spirality convex rib, and the bending place of body can deform, and so not only can affect structural strength, prior being not easy to manufactured, and is badly in need of solving above-mentioned technical barrier for this reason.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of mould of stainless steel structure spiral welded pipe, and when use, this mould is contained on forming machine, and produces novel stainless steel structure spiral welded pipe by shaping mechanism.
The technical solution of the utility model is as follows: a kind of mould of stainless steel structure spiral welded pipe, the body (1) of this stainless steel structure spiral welded pipe is docked after by the continuous distortion of spirality and is formed by a stainless steel band, and the seam (1a) that docking forms twist, described body (1) outside is provided with a spiral reinforcement (2), its axial line overlaps with the axial line of body (1), and the position of reinforcement (2) is corresponding with described seam (1a), the two helix length equates, described reinforcement (2) cross section is " Ω " font, its both sides are flanging (2a), wherein a flanging (2a) welds with body (1) outer wall of seam (1a) both sides simultaneously, the tube wall welding of another flanging and seam (1a) side, and these two flangings (2a) adopt electric resistance welding to be welded and fixed with body (1) simultaneously, it is characterized in that: the die ontology (3) of this mould is horizontally disposed flange plate structure, and formed by the large footpath section of left part and the path section of right part, wherein large footpath section is construction section, the front side of the large footpath of described die ontology (3) section has the slot to make way (3a) connecting inside and outside, this slot to make way is opened to the path section of die ontology (3) right part, and the bottom of die ontology (3) path section has the welding wheel slot to make way (3b) connecting inside and outside, corresponding described slot to make way (3a) right part of the axial location of this welding wheel slot to make way, the path section outer circumferential and axial of described die ontology (3) right part are equipped with bearing (6), the rotating shaft of each bearing is stuck in the groove on die ontology (3) outer wall, between the axial line of each bearing (6) and die ontology (3) axial line, there is an identical inclination angle (α), this inclination angle (α)=arc tan (girth of width/stainless steel structure spiral welded pipe of stainless steel band).
When installation, the large footpath section of described die ontology (3) left part is arranged on frame (5) right-hand member by die holder (4) level, and locate to arrange driving wheels (Q) at described slot to make way (3a), and front lower place and the back lower place of die ontology (3) right part are respectively provided with a reinforcement detent mechanism (JD), these two reinforcement detent mechanisms (JD) are " eight " font and arrange; Simultaneously, under described welding wheel slot to make way (3b), be arranged side by side left welding wheel (20) and backhand welding wheel (21), and an interior welding wheel (26) is set in die ontology (3), the position of this interior welding wheel (26) is just to welding wheel slot to make way (3b).When production, stainless steel band is around die ontology (3) outside, and contact with described bearing (6), stainless steel band under the drive that drives wheels (Q) along the circumferential rotation of die ontology (3), and bearing (6) makes stainless steel band moving axially along die ontology (3) simultaneously, thereby allow stainless steel band be wrapped on die ontology (3) by the continuous distortion of spirality, and the body (1) of automatic butt formation spiral welded pipe, so that follow-up welding reinforcement (2).
Adopt above technical scheme, the utility model is arranged on the forming machine of stainless steel structure spiral welded pipe, and match with the driving wheels (Q) of forming machine, stainless steel band is wrapped on die ontology (3) by the continuous distortion of spirality, and automatic butt forms the body (1) of spiral welded pipe, so that follow-up welding reinforcement (2), finally obtain the stainless steel structure spiral welded pipe of required size parameter, the production of this spiral welded pipe is simple, convenient, and this mould is simple in structure, easy to implement.
In this case, described slot to make way (3a) right low left high, and slot to make way (3a) is bar-shaped trough, between the axial line of its length direction and described body (3) axial line, also there is an inclination angle (α), this inclination angle (α)=arc tan (girth of width/stainless steel structure spiral welded pipe of stainless steel band).
As optimal design, the path section of described die ontology (3) left part vertically has a breach, and this breach is positioned at path pars infrasegmentalis, and runs through the inner and outer wall of die ontology (3).In said structure, the bottom of above-mentioned die ontology 3 large footpath sections vertically has a breach, this breach runs through the inner and outer wall of die ontology 3, and the effect of this breach is to avoid at cutting magnetic line direction inductor electric current, thus the consumption of electric energy while effectively reducing welding.
Beneficial effect: the utility model is arranged on the forming machine of stainless steel structure spiral welded pipe, and match with the driving wheels (Q) of forming machine, stainless steel band is wrapped on die ontology (3) by the continuous distortion of spirality, and automatic butt forms the body (1) of spiral welded pipe, so that follow-up welding reinforcement (2), finally obtain the stainless steel structure spiral welded pipe of required size parameter, the production of this spiral welded pipe is simple, convenient, and this mould is simple in structure, easy to implement.
Brief description of the drawings
Fig. 1 is the structural representation of stainless steel structure spiral welded pipe;
Fig. 2 is the cross section view of Fig. 1;
Fig. 3 is the partial enlarged drawing of A part in Fig. 2;
Fig. 4 is structural representation of the present utility model;
The B that Fig. 5 is Fig. 4 is to view;
Fig. 6 is the expanded view of Fig. 4;
Fig. 7 is the partial enlarged drawing of C part in Fig. 6;
Fig. 8 is that the utility model is contained in the front view on forming machine;
Fig. 9 is the right view of Fig. 8;
Figure 10 drives wheels Q to remove the structural representation after motor 13 in Fig. 8;
Figure 11 is that the D of Figure 10 is to view;
Figure 12 is the structural representation of reinforcement detent mechanism JD in Fig. 8;
Figure 13 is that the E of Figure 12 is to view;
Figure 14 is the structural representation of steel band guiding mechanism GD in Fig. 8;
Figure 15 is that the F of Figure 14 is to view;
Figure 16 is the structural representation of height adjustment mechanism GT in Fig. 8;
Figure 17 is that the H of Figure 16 is to view.
In this case, the label of all parts correspondence in above-mentioned accompanying drawing is as follows:
Body-1, reinforcement-2, die ontology-3, die holder-4, bearing-6, frame-5, driving shaft-7, driven shaft-8, holder-9, driving gear-10, driven gear-11, driven sprocket-12, motor-13, forward drive wheel-14, reverse drive wheel-15,
Supporting seat-16, support arm-17, locating wheel-18, turning cylinder-19, left welding wheel-20, backhand welding wheel-21, silver-colored bearing shell-22, mount pad-23, cylinder-24, air cylinder support-25, interior welding wheel-26, Connection Block-27, movable block-28, guide rail-29, vertically bar-30, positioning seat-31, thrust ball bearing-32, double nut-33, directive wheel-34, installation shaft-35,
U-shaped part-36, connect journal stirrup-37, location bearing-38, installing plate-39, installing frame-40,
Bracing frame-41 and lock-screw-42
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Fig. 1,2 and 3, a kind of stainless steel structure spiral welded pipe, the body 1 of this stainless steel structure spiral welded pipe is docked after by the continuous distortion of spirality and is formed by a stainless steel band, and twist, and the axial line of seam 1a overlaps with the axial line of body 1 the seam 1a that docking forms.Described body 1 outside is provided with a stainless reinforcement 2, and the axial line of this reinforcement 2 overlaps with the axial line of body 1.Above-mentioned reinforcement 2 is helical structure, and the position of this reinforcement 2 is corresponding with described seam 1a, and the two helix length equates.Described reinforcement 2 cross sections are " Ω " font, its both sides are flanging 2a, wherein a flanging 2a welds with body 1 outer wall of seam 1a both sides simultaneously, the tube wall welding of another flanging and seam 1a mono-side, and these two flanging 2a adopt electric resistance welding to be welded and fixed with body 1 simultaneously.
As shown in Fig. 4 to 7, the die ontology 3 of this mould is horizontally disposed flange plate structure, and is made up of the large footpath section of left part and the path section of right part, and wherein large footpath section is construction section.The front side of described die ontology 3 large footpath sections has the slot to make way 3a connecting inside and outside, and this slot to make way 3a opens to the path section of die ontology 3 right parts.The front side of described die ontology 3 large footpath sections has a slot to make way 3a, and this slot to make way 3a connects the inner and outer wall of slot to make way 3a, and slot to make way 3a is bar-shaped trough, and opens to the path section of die ontology 3 right parts.The size of above-mentioned slot to make way 3a and angle is set has no special requirements, as long as can meet the requirement that driving wheel is stepped down.In this case, above-mentioned slot to make way 3a is obliquely installed, and right low left high, between the axial line of this slot to make way 3a length direction and the axial line of described die ontology 3, has an inclined angle alpha.
The bottom of described die ontology 3 path sections has a welding wheel slot to make way 3b, and this welding wheel slot to make way 3b runs through the inner and outer wall of die ontology 3, and the corresponding described slot to make way 3a right part of the axial location of welding wheel slot to make way 3b.The size of above-mentioned welding wheel slot to make way 3b and angle is set has no special requirements, as long as can meet the requirement that welding wheel is stepped down.The path section outer circumferential and axial of described die ontology 3 right parts are equipped with bearing 6, and each bearing 6 is sleeved in a rotating shaft, and the two ends of this rotating shaft are stuck in groove corresponding on die ontology 3 outer walls, and half part of bearing 6 is also contained in this groove.Described in each, between the axial line of bearing 6 and die ontology 3 axial lines, there is an identical inclined angle alpha.As preferably, in this case, to be positioned at helical pitch be that on 80mm, the pitch bifilar helix that is 40mm, these bearings 6 also can be only on a helix certainly to all described bearings 6.
Also can find out from Fig. 4 to 7, the left end of above-mentioned die ontology 3 path sections is along being circumferentially with location bearing 38, and each location bearing 38 is sleeved in a bearing shaft, and this bearing shaft is inserted in the installing hole on described die ontology 3 outer walls simultaneously.Described location bearing 38 is for stainless steel band is positioned, and all location bearings 38 are on a helix, and this helix overlaps with the helix of described body 1.In addition, the bottom of above-mentioned die ontology 3 large footpath sections vertically has a breach, and this breach runs through the inner and outer wall of die ontology 3, and the effect of this breach is to avoid at cutting magnetic line direction inductor electric current, thus the consumption of electric energy while effectively reducing welding.And above-mentioned breach setting position, without specific requirement, is arranged on the section place, large footpath of die ontology 3 just in order to ensure the structural strength of die ontology 3.
Can find out from Fig. 4 to 17, as the production special plane of above-mentioned stainless steel structure spiral welded pipe, this forming machine is mainly made up of above-mentioned mould, driving wheels Q, reinforcement detent mechanism JD, steel band guiding mechanism GD, left welding wheel 20 and interior welding wheel 26 etc.Wherein, the die ontology 3 large footpath sections of described mould are bolted on die holder 4, and die holder 4 is also fixed by the right-hand member of bolt and frame 5, so just mould is horizontally fixed in frame 5.The structure of above-mentioned frame 5 does not have special requirement, as long as meet structural strength and installation requirement.
As shown in Fig. 8,9,14 and 15, the upper front of described die ontology 3 is provided with a steel band guiding mechanism GD, and this steel band guiding mechanism GD is mainly by directive wheel 34, installation shaft 35, U-shaped part 36 be connected journal stirrup 37 and form.Wherein, the number of described directive wheel 34 is three, the axial line of this directive wheel 34 and die ontology 3 axis parallels, and these three directive wheels, 34 layouts are " product " font.Each described directive wheel 34 is contained in outside an installation shaft 35 by bearing holder (housing, cover), and insert respectively in installing hole corresponding on 36 two sides of U-shaped part at these three installation shaft 35 two ends, and be locked on U-shaped part 36 by the lock-screw 42 that is connected to every installation shaft 35 two ends.And in addition, the described directive wheel 34 on both sides is highly non-adjustable, and a middle directive wheel 34 is highly adjustable, and on 36 two sides of U-shaped part, the installing hole of corresponding this directive wheel 34 is the bar hole of vertically offering.When use, after middle directive wheel 34 height adjustment put in place, then the lock-screw 42 at described installation shaft 35 two ends is locked.
Described U-shaped part 36 is fixed by screws in and connects on journal stirrup 37, and connection journal stirrup 37 is fixed on the top of described frame 5.The effect of described steel band guiding mechanism GD is that the stainless steel band to pulling out on material roller leads, and carry out smooth processing, when use, the lower surface of stainless steel band contacts with the top of both sides directive wheel 34, and the upper surface of stainless steel band contacts with the bottom of a middle directive wheel 34.
As shown in Fig. 8,9,10 and 11, described driving wheels Q is mainly made up of driving shaft 7, driven shaft 8, holder 9, driving gear 10, driven gear 11, driven sprocket 12, motor 13, forward drive wheel 14 and reverse drive wheel 15.Wherein, described driving shaft 7 and driven shaft 8 front and back are arranged side by side, and these two axle right low left highs have an identical inclined angle alpha between these two axle axial lines and described die ontology 3 axial lines.And, the middle part of described driving shaft 7 and driven shaft 8 respectively by bearings in a corresponding holder 9, holder 9 outsides of driving shaft 7 correspondences are provided with an installing plate 39, and the holder 9 of driven shaft 8 correspondences is fixed with an installing frame 40.Above-mentioned installing plate 39 is arranged on installing frame 40 by screw, and this installing frame 40 is fixedly mounted on the top of described frame 5.The left end of described driving shaft 7 is installed with a driving gear 10, and this driving gear 10 engages with the driven gear 11 that described driven shaft 8 left ends overlap admittedly.Simultaneously, the driven sprocket 12 of above-mentioned driving shaft 7 left ends is connected with the drive sprocket on motor 13 output shafts by chain (not shown in FIG.), this motor 13 is installed in frame 5 tops, so just can drive driving shaft 7 and driven shaft 8 to rotate by motor 13, and the direction of rotation of these two axles be contrary.Certainly, described driving shaft 7 also can adopt the transmission component of other versions to be connected with motor 13, as gear mechanism, belt transmission etc., is not limited to the chain drive described in the present embodiment.
The right-hand member of described driving shaft 7 is installed with forward drive wheel 14, and this forward drive wheel 14 is positioned at described die ontology 3 front sides, and the reverse drive that driven shaft 8 right-hand members overlap admittedly wheel 15 is arranged in described slot to make way 3a, and the outer wall of close die ontology 3.When production, stainless steel band is stuck between described forward drive wheel 14 and reverse drive wheel 15, and is positively driven frictional force that wheel 14 and reverse drive wheel 15 produce and is carrying secretly at the circumferencial direction of described die ontology 3 and move.
As shown in Fig. 8,9,12 and 13, the number of described reinforcement detent mechanism JD is two, and these two detent mechanism JD are located at respectively front lower place and the back lower place of described die ontology 3 right parts, and is arranged as " eight " font.Each described reinforcement detent mechanism JD is mainly made up of supporting seat 16, support arm 17, locating wheel 18 and turning cylinder 19.Wherein, described supporting seat 16 is fixedly mounted on support arm 17, and support arm 17 is fixing with bracing frame 41, and support arm 17 is adjustable with the relative position of bracing frame 41, and bracing frame 41 is fixed in frame 5.In this case, described support arm 17 is positioned on bracing frame 41 by three bolts, wherein screw rod contacts with the side of support arm 17, and nut is fixed on bracing frame 41, with time can adjust by adjusting the connecting length of three screw rods the relative position of support arm 17 and bracing frame 41.Described supporting seat 16 is arcuate structure, and there are two sides, between two sides of this supporting seat 16, be provided with side by side two locating wheels 18, these two locating wheels 18 are contained on a corresponding described turning cylinder 19 by bearing holder (housing, cover) respectively, the two ends of this turning cylinder 19 are located in installing hole corresponding on supporting seat 16 dual-sides, thereby two locating wheels 18 are arranged on supporting seat 16.
Described locating wheel 18 middle parts have an annular detent, and this detent, for blocking the curved portions in the middle of described reinforcement 2, has an identical inclined angle alpha between the axial line of each locating wheel 18 and described die ontology 3 axial lines.And all locating wheels 18 in two described reinforcement detent mechanism JD are positioned on same helix, this helix overlaps with the helix at described reinforcement 2 places, and described body 1 outside is located and be pressed on to reinforcement 2 by these four locating wheels 18.
As shown in Fig. 8,9,16 and 17, described left welding wheel 20 and backhand welding wheel 21 are arranged side by side, and be positioned under described welding wheel slot to make way 3b, the periphery of these two welding wheels is the face of cylinder, and between the axial line of these two welding wheels and the axial line of die ontology 3, has an identical inclined angle alpha.Described left welding wheel 20 and backhand welding wheel 21 are solidly set on respectively in the rotating shaft of a silver-colored bearing shell 22, and these two silver-colored bearing shells 22 are fixed by screws in respectively on a corresponding mount pad 23, and insulation between silver-colored bearing shell 22 and this mount pad 23.Two described mount pads 23 are separately fixed at a corresponding cylinder 24 piston rod upper ends, and cylinder 24 is fixedly mounted on respectively on a corresponding air cylinder support 25, and two air cylinder supports 25 fix on the ground, or are fixedly connected with described frame 5.
The number of described interior welding wheel 26 is one, and this interior welding wheel 26 is located in the centre bore of die ontology 3, and interior welding wheel 26 is just to described welding wheel slot to make way 3b, has an inclined angle alpha between the axial line of this interior welding wheel 26 and mould axial line.Described interior welding wheel 26 is solidly set in the rotating shaft of a silver-colored bearing shell 22, and this silver-colored bearing shell 22 is fixed on a Connection Block 27, insulation between this silver bearing shell 22 and Connection Block 27, and Connection Block 27 is fixed in described frame 5 by a height adjustment mechanism GT.
It is to be noted, the welding procedure that this forming machine is manufactured the employing of stainless steel structure spiral welded pipe is conventional electric resistance welding, the equipment of implementing electric resistance welding is described left welding wheel 20, backhand welding wheel 21, interior welding wheel 26, corresponding silver-colored bearing shell 22 etc., these welding equipments are outsourcing device, and its operation principle, syndeton are known by welding field technical staff.In addition, described left welding wheel 20, backhand welding wheel 21 and interior welding wheel 26 can just be rotated with random movement method, also can under corresponding drive motors drives, rotate.
Described height adjustment mechanism GT is mainly made up of movable block 28, guide rail 29, vertical bar 30, Connection Block 31, thrust ball bearing 32 and double nut 33.Wherein, one end of described movable block 28 and described Connection Block 27 are fixing, thereby described interior welding wheel 26 is linked together with movable block 28.Guide rail 29 fixing in the other end of described movable block 28 and frame 5 is slidably matched, and the fit system adopting in this case is dovetail groove and dovetail guide, so just makes movable block 28 move up and down.Described vertical bar 30 bottoms are connected with the screwed hole on movable block 28 tops, and the outside card on this vertical bar top 30 has a positioning seat 31, and this positioning seat 31 is fixed with described guide rail 29 upper ends simultaneously.Described thrust ball bearing 32 adopts double-direction thrust ball bearing, its number is two, these two thrust ball bearings 32 are sleeved on the vertical bar 30 of Connection Block 31 above and belows, and these two thrust ball bearings 32 are clamped between the annular stop boss and double nut 33 on vertical bar 30, and double nut 33 is threaded with vertical bar 30.Adopt said structure, just can regulate by adjusting the axial location of double nut 33 on vertical bar 30 height of described interior welding wheel 26, thus the wearing and tearing of welding wheel 26 in compensation.
As shown in Fig. 4, the accompanying drawings such as 6 and 7, all described inclined angle alpha numerical value all equates, the helical angle of this inclined angle alpha=stainless steel structure spiral welded pipe, and the girth of width/stainless steel structure spiral welded pipe of this helical angle=arc tan stainless steel band.In above-mentioned formula, girth=π * D of above-mentioned stainless steel structure spiral welded pipe, the diameter that D is spiral welded pipe.In this case, the width of described stainless steel band is 80mm, and girth=π * 500mm of spiral welded pipe, is 2.916 ° by calculating the numerical value of described inclined angle alpha.It should be noted that, the numerical value of described inclined angle alpha is necessary=girth of width/stainless steel structure spiral welded pipe of arc tan stainless steel band, if occur, error just can not obtain the spiral welded pipe of required size parameter.
Meanwhile, a material roller (not shown in FIG.) that is tied with stainless steel band is set in this forming machine left front, the left back of this forming machine is provided with a reinforcement feed mechanism (not shown in FIG.).When production, the stainless steel band pulling out on material roller first leads by three directive wheels 34 in described steel band guiding mechanism GD and is smooth, be wrapped in again described die ontology 3 outsides, and contact with described bearing 6, and located on die ontology 3 by described location bearing 38; Described forward drive wheel 14 and the rotation of reverse drive wheel 15 under the drive of motor 13, the switched in opposite of these two driving wheels, and stainless steel band is clamped in described forward drive wheel 14 and reverse drive wheel 15, so just drive stainless steel band to rotate along the circumferencial direction of die ontology 3 by these two driving wheels, and stainless steel band moves right simultaneously under the effect of each bearing 6, so just make stainless steel band according to the continuous distortion of helix, be wrapped on die ontology 3, thereby automatic butt forms described body 1, the seam 1a that docking forms is also spirality.
The reinforcement that described reinforcement feed mechanism is brought is positioned at body 1 outside, the arc sections at reinforcement 2 middle parts is stuck in the detent at four locating wheel 18 middle parts, thereby by four locating wheels 18, body 1 outside is located, is pressed on to reinforcement 2, this reinforcement 2 is relative with the seam 1a position of body 1.A side 2a of described reinforcement 2 is the body 1 outer wall welding with seam 1a both sides by described left welding wheel 20 and interior welding wheel 26, and another flanging 2a of reinforcement 2 simultaneously by backhand welding take turns 21 and interior welding wheel 26 weld with the tube wall of described seam 1a mono-side.
The foregoing is only preferred embodiment of the present utility model; not taking the utility model as restriction; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a mould for stainless steel structure spiral welded pipe, the body (1) of this stainless steel structure spiral welded pipe is docked after by the continuous distortion of spirality and is formed by a stainless steel band, and the seam (1a) that docking forms is twist, described body (1) outside is provided with a spiral reinforcement (2), its axial line overlaps with the axial line of body (1), and the position of reinforcement (2) is corresponding with described seam (1a), the two helix length equates, described reinforcement (2) cross section is " Ω " font, its both sides are flanging (2a), wherein a flanging (2a) welds with body (1) outer wall of seam (1a) both sides simultaneously, the tube wall welding of another flanging and seam (1a) side, and these two flangings (2a) adopt electric resistance welding to be welded and fixed with body (1) simultaneously, it is characterized in that: the die ontology (3) of this mould is horizontally disposed flange plate structure, and formed by the large footpath section of left part and the path section of right part, wherein large footpath section is construction section, the front side of the large footpath of described die ontology (3) section has the slot to make way (3a) connecting inside and outside, this slot to make way is opened to the path section of die ontology (3) right part, and the bottom of die ontology (3) path section has the welding wheel slot to make way (3b) connecting inside and outside, corresponding described slot to make way (3a) right part of the axial location of this welding wheel slot to make way, the path section outer circumferential and axial of described die ontology (3) right part are equipped with bearing (6), the rotating shaft of each bearing is stuck in the groove on die ontology (3) outer wall, between the axial line of each bearing (6) and die ontology (3) axial line, there is an identical inclination angle (α), this inclination angle (α)=arc tan (girth of width/stainless steel structure spiral welded pipe of stainless steel band).
2. the mould of stainless steel structure spiral welded pipe according to claim 1, it is characterized in that: described slot to make way (3a) right low left high, and slot to make way (3a) is bar-shaped trough, between the axial line of its length direction and described body (3) axial line, also there is an inclination angle (α), this inclination angle (α)=arc tan (girth of width/stainless steel structure spiral welded pipe of stainless steel band).
3. according to the mould of stainless steel structure spiral welded pipe described in claim 1 or 2, it is characterized in that: the path section of described die ontology (3) left part vertically has a breach, this breach is positioned at path pars infrasegmentalis, and runs through the inner and outer wall of die ontology (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420268407.8U CN203886965U (en) | 2014-05-23 | 2014-05-23 | Forming mold of helical welding pipe with stainless steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420268407.8U CN203886965U (en) | 2014-05-23 | 2014-05-23 | Forming mold of helical welding pipe with stainless steel structure |
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| Publication Number | Publication Date |
|---|---|
| CN203886965U true CN203886965U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420268407.8U Expired - Fee Related CN203886965U (en) | 2014-05-23 | 2014-05-23 | Forming mold of helical welding pipe with stainless steel structure |
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| CN (1) | CN203886965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110893427A (en) * | 2019-12-23 | 2020-03-20 | 江苏金鑫电器有限公司 | Bending tool for spiral welded pipe |
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2014
- 2014-05-23 CN CN201420268407.8U patent/CN203886965U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110893427A (en) * | 2019-12-23 | 2020-03-20 | 江苏金鑫电器有限公司 | Bending tool for spiral welded pipe |
| CN110893427B (en) * | 2019-12-23 | 2024-04-26 | 江苏金鑫电器有限公司 | Bending tool for spiral welded pipe |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chongqing Qingyang holding (Group) Co., Ltd. Assignor: Li Changcheng Contract record no.: 2016500000018 Denomination of utility model: Forming mold of helical welding pipe with stainless steel structure Granted publication date: 20141022 License type: Exclusive License Record date: 20160805 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20190523 |