CN104096734B - Bellows roller head machine - Google Patents

Bellows roller head machine Download PDF

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Publication number
CN104096734B
CN104096734B CN201410382221.XA CN201410382221A CN104096734B CN 104096734 B CN104096734 B CN 104096734B CN 201410382221 A CN201410382221 A CN 201410382221A CN 104096734 B CN104096734 B CN 104096734B
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school
mould
type
contained
main shaft
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CN104096734A (en
Inventor
李水章
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BEIJING XINGDA CORRUGATED PIPE Co Ltd
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BEIJING XINGDA CORRUGATED PIPE Co Ltd
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Abstract

Bellows roller head machine belongs to bellows making apparatus field, solves the making problem of making major diameter flexible pipe bellows, by complementing one another, interrelated main shaft mould (1) together, mould (14) and school mould (18) three part compositions, main shaft mould (1) entirety processes and is connected in main shaft (30), mould (14) and school mould (18) complement one another Coordinative assembling together by plate, moulding oil cylinder (15) drives on mould (14) by forming slide (13), lower limit has been moved the moulding of ripple, school type oil cylinder (19) drives on school mould (18) by school type slide block (11), lower limit has been moved the school type of ripple, the convenient and swift making major diameter of energy, especially flexible pipe bellows more than 600mm, has filled up domestic blank, stable, easy care, easy to operate.

Description

Bellows roller head machine
Technical field
The invention belongs to bellows making apparatus field, relate to bellows roller head machine.
Background technology
In prior art, flexible pipe is widely used with bellows, and all adopts the type method that rises to make, but the type method that rises is difficult to make major diameter (especially more than 600mm) flexible pipe bellows, causes flexible pipe bellows to apply and be affected because of its diameter restriction.
Summary of the invention
The technical problem solving:
Bellows roller head machine is provided, solves the making problem of major diameter flexible pipe bellows, can fill the domestic gaps, and expand the application of flexible pipe bellows.
The technical scheme adopting:
Bellows roller head machine, has frame, power drive system, Hydraulic Power Transmission System, mechanical system and corresponding mould, it is characterized in that: mould by complementing one another, interrelated main shaft mould, mould and school mould three parts together form; The main shaft mould that entirety processes is axially equally distributed in main body and 4~5 masters of homotype are involved the end wave component that is positioned at main body right-hand member by continuous, the two ends of main shaft mould are fixed in respectively on the right side of left and right section, left port of main shaft, the external diameter of right section of main shaft equals the crest diameter of main ripple, the detachable property of right-hand member bearing-type of described right section is contained on the 2# bearing block on the 2# support that can overturn to the right, the external diameter of left section of main shaft equals the trough diameter of main ripple, and the left end of described left section is connected with power drive system by shaft coupling; Also there is the bracing frame of main shaft;
Mould and school mould complement one another Coordinative assembling together by plate aggregate, concrete structure is, detachable property is contained on 3# support and has the outside of the substrate of horizontal leading screw to have horizontal dovetail groove, laterally in dovetail groove, supporting positioning sliding block is housed, described positioning sliding block can horizontally slip under the effect of horizontal leading screw in dovetail groove, the outside of positioning sliding block has vertical dovetail groove, in vertical dovetail groove, the school type slide block that can slide up and down is housed, the right side of described school type slide block has vertical dovetail groove, in vertical dovetail groove, the forming slide that can slide up and down is housed,
About mould, horizontally slipping of positioning sliding block can drive school type slide block left and right displacement and make its location, left and right, can synchronously drive the displacement of forming slide left and right and location, left and right by school type slide block again simultaneously, moulding oil cylinder is equipped with at the top of school type slide block, moulding oil cylinder can drive forming slide to slide up and down in vertical dovetail groove, and make its upper and lower location, thereby make the mould that is contained in forming slide bottom realize left and right and locate up and down; Mould bearing-type is contained on the little axle of 1#, and the little axle of 1# is packed on the vertical plate of bottom of forming slide; Also there is the guiding mechanism that is adjusted to mould moulding prima wave height size;
About school mould, horizontally slipping of positioning sliding block can drive school type slide block left and right displacement and make its location, left and right, school type oil cylinder is equipped with at the top of positioning sliding block, school type oil cylinder can drive school type slide block to slide up and down and make it to locate up and down in vertical dovetail groove, thereby makes the school mould that is contained in school type slider bottom realize left and right and locate up and down; School mould bearing-type is contained on the little axle of 2#, and the little axle of 2# is packed on the riser of bottom of school type slide block; Also there is the guiding mechanism of adjusting mould school, school type bellows wave height size; Also there is the pressing wheel mechanism that can retrain pipe and be beneficial to mould school, school type.
Beneficial effect:
Bellows roller head machine, can make major diameter, and especially the flexible pipe bellows of diameter >=600mm, has filled up domestic blank; Compact integral structure, is convenient to manufacture, stable, is easy to safeguard, convenient to operation, product quality is guaranteed; Overcome flexible pipe bellows and be limited in the impact being subject in application because of its diameter, thereby expanded the application of flexible pipe bellows.
Brief description of the drawings
Fig. 1, main assembly structural representation;
Fig. 2, cut open figure by the A-A shown in Fig. 1; ,
Fig. 3, the plate aggregate Coordinative assembling plan structure schematic diagram together that complements one another;
Fig. 4, cut open figure by the B-B shown in Fig. 1.
Detailed description of the invention
Further explanation in detail by reference to the accompanying drawings;
As shown in Fig. 1~4, mould by complementing one another, interrelated main shaft mould 1, mould 14 and school mould 18 3 parts together form; The main shaft mould 1 that entirety processes is axially equally distributed in main body 2 and 4~5 main ripples 3 of homotype and the end ripple 4 that is positioned at main body 2 right-hand members form by continuous, the two ends of main shaft mould 1 are fixed in respectively on the right side of left and right section, left port of main shaft 30, the external diameter of right section of main shaft 30 equals the crest diameter of main ripple 3, the detachable property of right-hand member bearing-type of described right section is contained on the 2# bearing block 35 on the 2# support 31 that can overturn to the right, the external diameter of left section of main shaft 30 equals the trough diameter of main ripple 3, and the left end of described left section is connected with power drive system by shaft coupling 29; Also there is the bracing frame 32 of main shaft 30;
Mould 14 and school mould 18 complement one another Coordinative assembling together by plate aggregate, concrete structure is, detachable property is contained on 3# support 5 and has the outside of the substrate 6 of horizontal leading screw 7 to have horizontal dovetail groove 8, laterally in dovetail groove 8, supporting positioning sliding block 9 is housed, described positioning sliding block 9 can horizontally slip under the effect of horizontal leading screw 7 in dovetail groove 8, the outside of positioning sliding block 9 has vertical dovetail groove 10, in vertical dovetail groove 10, the school type slide block 11 that can slide up and down is housed, the right side of described school type slide block 11 has vertical dovetail groove 12, in vertical dovetail groove 12, the forming slide 13 that can slide up and down is housed,
About mould 14, horizontally slipping of positioning sliding block 9 can drive the 11 left and right displacements of school type slide block and make its location, left and right, simultaneously again can be by synchronous forming slide 13 left and right displacements and the location, left and right of driving of school type slide block 11, moulding oil cylinder 15 is equipped with at the top of school type slide block 11, moulding oil cylinder 15 can drive forming slide 13 to slide up and down in vertical dovetail groove 12, and make its upper and lower location, thereby make the mould 14 that is contained in forming slide 13 bottoms realize left and right and locate up and down; Mould 14 bearing-types are contained on the little axle 16 of 1#, and the little axle 16 of 1# is packed on the vertical plate 17 of bottom of forming slide 13; Also there is the guiding mechanism that is adjusted to mould 14 moulding prima wave height sizes;
About school mould 18, horizontally slipping of positioning sliding block 9 can drive the 11 left and right displacements of school type slide block and make its location, left and right, school type oil cylinder 19 is equipped with at the top of positioning sliding block 9, school type oil cylinder 19 can drive school type slide block 11 to slide up and down and make it to locate up and down in vertical dovetail groove 10, thereby makes the school mould 18 that is contained in type slide block 11 bottoms, school realize left and right and locate up and down; Mould 18 bearing-types in school are contained on the little axle 20 of 2#, and the little axle 20 of 2# is packed on the riser 21 of bottom of school type slide block 11; Also there is the guiding mechanism of adjusting school mould 18 school type bellows wave height sizes; Also there is the pressing wheel mechanism that can retrain pipe 62 and be beneficial to school mould 18 school types.
The structure of described power drive system is, the motor 22 being contained in frame 63 drives driving gear 26 to rotate through gearbox 23, power output gear 24 and chain 25, driving gear 26 is contained on the left end of minor axis 27, minor axis 27 bearing-types are packed on the 1# bearing block 28 on 1# support 37, and the right-hand member of minor axis 27 links together by shaft coupling 29 and main shaft 30; The structure of described 2# support 31 is, there is column 33, its lower end by rotating shaft 34 to the right upset property be contained in frame 63, the detachable property in its upper end 2# bearing block 35 is housed, the articulated overturning oil cylinder 36 in right side of column 33, the seat end of overturning oil cylinder 36 is hinged in frame 63, the effect of 2# support 31, the one, the rotation of supporting spindle 30, the one, for packing pipe 64 into and unloading processed complete goods; The structure of support frame as described above 32 is, there is cartridge type pillar 38, on it, there is jack 39, dibit two-wheel functional compartment is housed on jack 39, on the casing 40 of functional compartment, two little axles 41 of parallel 3# contour and interval S are housed, the every little axle 41 upper bearing (metal) formulas of 3# are equipped with the moving runner 42 of two same sizes, the effect of bracing frame 32 is, can under main shaft 30, move left and right according to axial O-O ' easily, for supporting the main shaft 30 that span is larger, in support, moving runner 42 can rotate jointly with main shaft 30, is beneficial to the normal operation of main shaft 30.
The structure of described mould 14 is that mould 14 is processed by moulding matrix 43 and junctor 44 entirety, is contained on the little axle 16 of 1# by junctor 44 bearing-types; The structure of the guiding mechanism of described prima wave height size is, framework 45 is equipped with at right outside side angle corresponding site place at school type slide block 11, the 1# upper and lower limit level sensor 47,48 corresponding with 1# limited block 46 on forming slide 13, respectively by being contained on framework 45 and the upper and lower rotation adjusting screw(rod) 49,50 of locking nut drags and can slide up and down according to framework 45, thereby regulate its upper and lower position.
The structure of described school mould 18 is, school mould 18 has 3~4 homotype school pattern sheets 51, and each school pattern sheet 51 equidistantly and respectively turnable positioning sleeve is contained on sleeve 52, and sleeve 52 bearing-types are contained on the little axle 20 of 2#; The structure of the guiding mechanism of described school type bellows wave height size is, in the left side of positioning sliding block 9, vertical rod 53 is equipped with at corresponding site place, the 2# upper and lower limit level sensor 55,56 corresponding with 2# limited block 54 on school type slide block 11, all can be contained in vertical rod 53 by upper and lower slidingtype, thereby regulate its upper and lower position, and can be fixed by holding out against screw respectively.
The structure of described pressing wheel mechanism is, top right side (seeing Fig. 1,3) in school type slide block 11 is welded with the suspension bracket 62 with vertical frid 57, upper and lower two clamping screws 58 are welding respectively in the central authorities of vertical frid 57, separately have with central cylindrical void 60 supporting with vertical frid 57 and clamping screw 58Type pinch roller frame plate 59,On two forks of the bottom of type pinch roller frame plate 59, be equipped with respectively one group have enough tool L at regular intervals between 61, two rubber runners 61 of flexible rubber runner,Type pinch roller frame plate 59 is perpendicular to the axes O-O ' of main shaft 30, and clamping screw 58, through central cylindrical void 60, is adjustedThe upper-lower position of type pinch roller frame plate 59 is tightened fixing with locknut; The effect of pressing wheel mechanism is, in the time that school mould 18 is worked, rubber runner 61 can adjusted in concert to contacting with pipe 64, thereby can retrain pipe 64, be beneficial to school type.
Each support is being contained in frame 63 of detachable property all.
Operation principle:
1, tubulature base 64, dismantle the 2# bearing block 35 on 2# support 31, discharge the right-hand member of main shaft 30, start overturning oil cylinder 36, pull column 33 outwards upset put in place, afterwards pipe 64 is sleeved on right section of main shaft 30, then 2# support 31 resets, and shift onto left position be enclosed within on main shaft mould 1, need fully cross the first die cavity, can meet the moulding of first ripple.
2, location, rotates horizontal leading screw 7, regulates positioning sliding block 9 to drive school type slide block 11 to horizontally slip together with forming slide 13 simultaneously, presets position until mould 14 reaches.
3, prima moulding, first starter motor 22 drives main shaft 30 to rotate together with main shaft mould 1, start afterwards moulding oil cylinder 15, promote forming slide 13 and drive mould 14 to continue descending, the pipe 64 that extruded sleeve also rotates on main shaft 30 thereupon together, mold a ripple, to setting after wave height size, 1# limited block 46 touches 1# lower limit sensor 48, moulding oil cylinder 15 inverted runnings, and mould 14 is upwards mentioned, and can under the effect of 1# upper limit sensor 47, stop up, and remain on this position, so far, complete the moulding of a ripple.
4, school type, when completing after the moulding of a ripple, precalculated position after school type oil cylinder 19 has remained on and moved up under the effect of 2# upper limit sensor 55, a ripple of firm moulding is manually moved to the left after a die cavity, start school type oil cylinder 19, promote school type slide block 11 and drive school mould 18 to continue descending, corresponding school pattern sheet 51 is entered in the trough of firm moulding, it is carried out to school type, until 2# limited block 54 touches 2# lower limit sensor 56, school type oil cylinder 19 inverted runnings, school mould 18 is upwards mentioned, and can under the effect of 2# upper limit sensor 55, stop up, and remain on this position, so far, complete the school type of a ripple.
5,, as above-mentioned 3,4 repeat, until after the whole moulding of whole pipe 64, stop motor 22 and turn round, and mould 14 and school mould 18 are all moved to upper limit position, can unload goods by 2# support 31. So rerun.
In the course of work, the incipient stage, the position of bracing frame 32 moves right as far as possible, and during pipe 64 is moved to the left according to main shaft gradually, bracing frame 32 also should move right at any time.
One group of the main shaft mould 1 complementing one another, mould 14 and school mould 18 are suitable for the pipe 64 of certain diameter scope.

Claims (9)

1. bellows roller head machine, has frame, power drive system, Hydraulic Power Transmission System, mechanical system and phaseAnswer mould, it is characterized in that: mould by complementing one another, interrelated main shaft mould, mould and school type togetherMould three part compositions; The main shaft mould that entirety processes is axially equally distributed in main body and homotype by continuous4~5 masters are involved the end wave component that is positioned at main body right-hand member, and the two ends of main shaft mould are fixed in respectively left and right section of main shaftIn the right side, left port, the external diameter of right section of main shaft equals the crest diameter of main ripple, the detachable property of right-hand member bearing-type of described right sectionBe contained on the 2# bearing block on the 2# support that can overturn to the right, the external diameter of left section of main shaft equals the trough diameter of main ripple,The left end of described left section is connected with power drive system by shaft coupling; Also there is the bracing frame of main shaft;
Mould and school mould complement one another Coordinative assembling together by plate aggregate, and concrete structure is, detachableProperty is contained on 3# support and has the outside of the substrate of horizontal leading screw to have horizontal dovetail groove, laterally in dovetail groove, is equipped with supportingPositioning sliding block, described positioning sliding block can horizontally slip under the effect of horizontal leading screw in dovetail groove, the outside of positioning sliding blockHave vertical dovetail groove, in vertical dovetail groove, the school type slide block that can slide up and down is housed, the right side of described school type slide block hasVertical dovetail groove, is equipped with the forming slide that can slide up and down in vertical dovetail groove;
About mould, horizontally slipping of positioning sliding block can drive school type slide block left and right displacement and make its location, left and right, withTime can synchronously drive the displacement of forming slide left and right and left and right location by school type slide block again, moulding is equipped with at the top of school type slide blockOil cylinder, moulding oil cylinder can drive forming slide to slide up and down in vertical dovetail groove, and makes its upper and lower location, thereby makesThe mould that is contained in forming slide bottom is realized left and right and locates up and down; Mould bearing-type is contained on the little axle of 1#, 1Little axle is packed on the vertical plate of bottom of forming slide; Also there is the reconditioner that is adjusted to mould moulding prima wave height sizeStructure;
About school mould, horizontally slipping of positioning sliding block can drive school type slide block left and right displacement and make its location, left and right, fixedSchool type oil cylinder is equipped with at the top of position slide block, and school type oil cylinder can drive school type slide block slide up and down and make it in vertical dovetail grooveLocation up and down, thus make the school mould that is contained in school type slider bottom realize left and right and locate up and down; School mould bearing-typeBe contained on the little axle of 2#, the little axle of 2# is packed on the riser of bottom of school type slide block; Also there is the mould school, school of adjustment type rippleThe guiding mechanism of the high size of tube wave; Also there is the pressing wheel mechanism that can retrain pipe and be beneficial to mould school, school type.
2. bellows roller head machine according to claim 1, is characterized in that: described power drive systemStructure is, is contained in motor (22) in frame through gearbox (23), power output gear (24) and chain (25)Drive driving gear (26) to rotate, driving gear (26) is contained on the left end of minor axis (27), minor axis (27) bearingFormula is packed on the 1# bearing block (28) on 1# support (37), and the right-hand member of minor axis (27) is by shaft coupling (29)Link together with main shaft (30); The structure of described 2# support (31) is, has column (33), and its lower end is passed throughRotating shaft (34) to the right upset property to be contained in frame (63) upper, the detachable property in its upper end 2# bearing block (35) is housed, verticalThe articulated overturning oil cylinder in right side (36) of post (33), the seat end of overturning oil cylinder (36) is hinged in frame (63);The structure of support frame as described above (32) is, has cartridge type pillar (38), has jack (39), jack (39) on itOn dibit two-wheel functional compartment is housed, the casing (40) of functional compartment is upper, two parallel 3# contour and interval S is housed littleAxle (41), the every little axle of 3# (41) upper bearing (metal) formula is equipped with the moving runner (42) of two same sizes.
3. bellows roller head machine according to claim 1 and 2, is characterized in that: described mould (14)Structure be that mould (14) is processed by moulding matrix (43) and junctor (44) entirety, by junctor (44)Bearing-type is contained on the little axle of 1# (16); The structure of the guiding mechanism of described prima wave height size is, at school type slide block (11)Right outside side angle corresponding site place framework (45) is housed, corresponding with the 1# limited block (46) on forming slide (13)1# upper and lower limit level sensor (47,48), respectively by being contained in the upper also upper and lower rotation of locking nut of framework (45)Adjusting screw(rod) (49,50) drags and can slide up and down according to framework (45), thereby regulates its upper and lower position.
4. bellows roller head machine according to claim 1 and 2, is characterized in that: described school mould (18)Structure be, school mould (18) has 3~4 homotype school pattern sheets (51), each school pattern sheet (51) is equidistantAnd turnable positioning sleeve is contained in sleeve (52) above respectively, sleeve (52) bearing-type is contained on the little axle of 2# (20); InstituteThe structure of stating the guiding mechanism of school type bellows wave height size is to be equipped with at the corresponding site place, left side of positioning sliding block (9)Vertical rod (53), the 2# upper and lower limit level sensor corresponding with 2# limited block (54) on school type slide block (11) (55,56), all can be contained in vertical rod (53) above by upper and lower slidingtype, thereby regulate its upper and lower position, and can be respectively by topTight screw is fixed.
5. bellows roller head machine according to claim 3, is characterized in that: described school mould (18)Structure be, school mould (18) has 3~4 homotype school pattern sheets (51), each school pattern sheet (51) is equidistantAnd turnable positioning sleeve is contained in sleeve (52) above respectively, sleeve (52) bearing-type is contained on the little axle of 2# (20); InstituteThe structure of stating the guiding mechanism of school type bellows wave height size is to be equipped with at the corresponding site place, left side of positioning sliding block (9)Vertical rod (53), the 2# upper and lower limit level sensor corresponding with 2# limited block (54) on school type slide block (11) (55,56), all can be contained in vertical rod (53) above by upper and lower slidingtype, thereby regulate its upper and lower position, and can be respectively by topTight screw is fixed.
6. bellows roller head machine according to claim 1 and 2, is characterized in that: described pressing wheel mechanismStructure is to be welded with the suspension bracket (62) with vertical frid (57), vertical channel in the top right side of school type slide block (11)Upper and lower two clamping screws (58) are welding respectively in the central authorities of plate (57), be separately with central cylindrical void (60) and with hang downStraight trough plate (57) and clamping screw (58) are supportingType pinch roller frame plate (59),The end of type pinch roller frame plate (59)On two forks of portion, be equipped with respectively one group and there is enough flexible rubber runners (61), two rubber runners (61) itBetween tool L at regular intervals,Type pinch roller frame plate (59) is perpendicular to the axes O-O ' of main shaft (30), clamping screw (58)Through central cylindrical void (60), adjustThe upper-lower position of type pinch roller frame plate (59) is tightened fixing with locknut.
7. bellows roller head machine according to claim 3, is characterized in that: the structure of described pressing wheel mechanismFor, be welded with the suspension bracket (62) with vertical frid (57) in the top right side of school type slide block (11), vertical frid (57)Central authorities welding respectively upper and lower two clamping screws (58), be separately with central cylindrical void (60) and with vertical frid (57)And clamping screw (58) is supportingType pinch roller frame plate (59),Two forks of the bottom of type pinch roller frame plate (59)Above be equipped with respectively one group and there is enough flexible rubber runners (61), between two rubber runners (61), have certain betweenApart from L,Type pinch roller frame plate (59) is perpendicular to the axes O-O ' of main shaft (30), and clamping screw (58) is through central authoritiesCylindrical void (60), adjustsThe upper-lower position of type pinch roller frame plate (59) is tightened fixing with locknut.
8. bellows roller head machine according to claim 4, is characterized in that: the structure of described pressing wheel mechanismFor, be welded with the suspension bracket (62) with vertical frid (57) in the top right side of school type slide block (11), vertical frid (57)Central authorities welding respectively upper and lower two clamping screws (58), be separately with central cylindrical void (60) and with vertical frid (57)And clamping screw (58) is supportingType pinch roller frame plate (59),Two forks of the bottom of type pinch roller frame plate (59)Above be equipped with respectively one group and there is enough flexible rubber runners (61), between two rubber runners (61), have certain betweenApart from L,Type pinch roller frame plate (59) is perpendicular to the axes O-O ' of main shaft (30), and clamping screw (58) is through central authoritiesCylindrical void (60), adjustsThe upper-lower position of type pinch roller frame plate (59) is tightened fixing with locknut.
9. bellows roller head machine according to claim 5, is characterized in that: the structure of described pressing wheel mechanismFor, be welded with the suspension bracket (62) with vertical frid (57) in the top right side of school type slide block (11), vertical frid (57)Central authorities welding respectively upper and lower two clamping screws (58), be separately with central cylindrical void (60) and with vertical frid (57)And clamping screw (58) is supportingType pinch roller frame plate (59),Two forks of the bottom of type pinch roller frame plate (59)On end, be equipped with respectively one group and there is enough flexible rubber runners (61), between two rubber runners (61), have certainSpacing L,Type pinch roller frame plate (59) is perpendicular to the axes O-O ' of main shaft (30), during clamping screw (58) passesCentre cylindrical void (60), adjustsThe upper-lower position of type pinch roller frame plate (59) is tightened fixing with locknut.
CN201410382221.XA 2014-08-06 2014-08-06 Bellows roller head machine Active CN104096734B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publication number Priority date Publication date Assignee Title
CN106180328A (en) * 2016-07-20 2016-12-07 江苏龙胜机床制造有限公司 A kind of ring metal bellows molding machine
CN110666000B (en) * 2019-10-10 2021-01-05 山东科技大学 Automatic shaping device for metal corrugated pipe
CN112355108B (en) * 2020-10-23 2022-06-17 南京德邦金属装备工程股份有限公司 Forming method of large-caliber corrugated pipe expansion joint
CN112570557A (en) * 2020-10-29 2021-03-30 无锡华利达金属制品有限公司 Cold press mechanism of exhaust hose telescopic joint

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Publication number Priority date Publication date Assignee Title
US2061501A (en) * 1932-07-29 1936-11-17 Fulton Sylphon Co Method and apparatus for rolling bellows
US4018072A (en) * 1975-10-22 1977-04-19 Pacific Roller Die Co., Inc. End recorrugator
US5950472A (en) * 1998-08-13 1999-09-14 Atlanta Grothes Machine Company Bead-formation in metal drum manufacture
CN201613293U (en) * 2010-03-26 2010-10-27 浙江佳鑫铜业有限公司 Bellows machine
CN203316549U (en) * 2013-06-14 2013-12-04 营口北方制桶设备科技有限公司 Ripple and W-rib rolling machine

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Denomination of invention: Bellows rolling forming machine

Effective date of registration: 20210325

Granted publication date: 20160518

Pledgee: Beijing finance Company limited by guarantee

Pledgor: BEIJING XINGDA BELLOWS Co.,Ltd.

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Date of cancellation: 20220420

Granted publication date: 20160518

Pledgee: Beijing finance Company limited by guarantee

Pledgor: Beijing Xingda Bellows Co.,Ltd.

Registration number: Y2021990000267