CN104384266B - Cold roll forming technology for escalator handrail bracket - Google Patents
Cold roll forming technology for escalator handrail bracket Download PDFInfo
- Publication number
- CN104384266B CN104384266B CN201410603581.8A CN201410603581A CN104384266B CN 104384266 B CN104384266 B CN 104384266B CN 201410603581 A CN201410603581 A CN 201410603581A CN 104384266 B CN104384266 B CN 104384266B
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- Prior art keywords
- roller
- section bar
- way
- bending
- escalator handrail
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die
- B21D7/085—Bending rods, profiles, or tubes by passing between rollers or through a curved die by passing through a curved die
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/14—Bending rods, profiles, or tubes combined with measuring of bends or lengths
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
The invention discloses a cold roll forming technology for an escalator handrail bracket. The cold roll forming technology is operated according to the following steps: 26-28 roller beds are arranged in a stretching bending die, wherein each roller bed comprises bending die assemblies and straightening roller assemblies; the convex-concave degree of a roller sheet in each bending die assembly and a gap between two vertically arranged rolling heads are regulated to control a pressing bending deformation amount to a section bar by each roller bed to be 8-12 degrees; then, the section bar is caused to slowly enter the last roller bed from the first roller bed; each straightening roller assembly arranged between every two bending die assemblies is used for protecting the driving direction of the section bar. The section bar processed by the technology is free from surface damage, the product quality and the attractiveness degree of the formed section bar are improved, surface processing is omitted in a later stage, the working efficiency of escalator handrail bracket processing is integrally improved, and meanwhile, the cost is saved on the whole.
Description
Technical field
The present invention relates to the processing and forming technology of section bar, specifically for the cold-bending molding technology of escalator handrail support.
Background technology
Now, slender type escalator is seen everywhere in each big mini-marts, and its advantage is that structure is simple, visual appearance
Fineness, moderate product price simultaneously, and it is practically applicable to very much the occasion of the few underload of the stream of people.However, wherein with our directly contacts
Staircase handrail it is simply that by armrest support system support run.For domestic and international middle-end customers, this armrest support
Class market can not be ignored, and market potential value-added space is very big.
Under the pressure of market competition, each rival participates, and the dimensional requirement of product is typically adjusted and can reach
To the requirement of client, but require to do essence and run business into particular one to be difficult in equivalent technology aspect.Because do essence and running business into particular one and will certainly look forward to itself
Industry brings the increasing of cost of manufacture, and efficiency reduces, and does not finally reach the effect of doulbe-sides' victory.Therefore to changed from manufacture craft
Enter, reduce subsequently loaded down with trivial details operation, improve current production efficiency, worth thinking deeply about.
The traditional handicraft making escalator handrail support is to complete cold drawn for section bar, the cold draw equipment of employing is to be provided with
20 road roller-ways, it is therefore desirable to per pass roller-way reaches 15 ° to the deflection of section bar, have the portion of damage during cold drawn to section bar
Position is processed again, hair of polishing, but this traditional technique frequently can lead to damage location hairline and had with script hairline
Significantly aberration, hairline linking has offset, hair influential effect overall appearance, and the qualification rate of product is low.And numerous and diverse is follow-up
Operation can increase the manufacturing cost of enterprise simultaneously, and production efficiency reduces, from the point of view of enterprise, in traditional cold drawing molding
On the basis of research, the particularity of combination product, and the demand of client sets out, and improves cold drawing molding technique imperative.
Not damaged cold-bending molding technology is the multi-pass molding roller by being arranged in order, and coiled material, band must not be damaged
The position of wound is protected, and makes the minimum friction forces that it is subject in deformation process.By constantly carrying out transverse cold bending,
To make the section bar of specific section.Not damaged cold-bending molding technology is a kind of section material, energy-conservation, the efficient sheet metal new work of shaping
Skill, new technology.Using this technique, not only can produce high-quality shape product, and can improve outside product
Appearance quality, improve production efficiency, thus improve the market competitiveness of enterprise.
So, escalator handrail support reply cost of manufacture will reduce, and sales volume is lifted, the high requirement of production efficiency, for
The not damaged cold-bending molding technology of escalator handrail support becomes one of urgent hot research topic.
Therefore, the problems referred to above are should to be examined in escalator handrail support using the operating process of cold-bending molding technology
The problem considered and solve.
Content of the invention
For above-mentioned problem, the present invention provides escalator handrail support cold-bending molding technology.
The technical solution of the present invention is：Escalator handrail support cold-bending molding technology, operates in accordance with the following steps：
A. stretch bending mold is fixed on stretch bending support, and described stretch bending mold includes straightway die main body and 26 ~ 28 road rollers
Road, described straightway die main body penetrates roller-way setting described in per pass, and roller-way described in per pass all includes press-bending membrane module and rectifys
Positive roll assembly, described rectification roll assembly is arranged on the rear end of described press-bending membrane module, and described press-bending membrane module includes presenting sagging
Two cylindrical milled heads of straight setting, left cut to circular arc mould and right cut to circular arc mould, milled head horizontally set and two described in two
End is installed in described left cut to circular arc mould and described right cut on circular arc mould, and described straightway die main body passes through dismountable
Mode is fastenedly connected to circular arc mould to circular arc mould and described right cut with described left cut respectively；
Described milled head is the roller piece being provided with concavo-convex quoit form on cylindrical roller, by regulating roller piece
The clearance control per pass roller-way of camber and the vertically disposed milled head of two-phase is 8 ° ~ 12 ° to the compacting bending deformation quantity of section bar,
I.e. with from first roller-way to last one roller-way in order per pass roller-way increase the compacting bending deformation quantity to section bar for 8 ° ~
12 ° of form setting.
B. each described rectification roll assembly includes two correct rollers and bottom mounting bracket, and two described correct rollers are in laterally
It is set in parallel in described mounting bracket；
Section bar enters first roller-way, section bar top is passed through between two correct rollers, then by the pars intermedia on section bar top
It is partially pressed in first roller-way to be placed on straightway die main body and be located at and fix between two milled heads.
C. section bar runs to last one roller-way from first roller-way on straight line section die, and per pass roller-way passes through milled head
Giving the certain pressure on top surface of section bar in the outside of section bar makes the interlude of section bar and straightway die main body be fully contacted；And type
Material, when through per pass roller-way, gives section bar certain orientation stretching by two adjacent bending die assemblies between two roller-ways, makes type
Material is fully surrendered.
D. section bar is through last one roller-way, and the section bar reaching length-specific cuts off from stretch bending mold and is folded down, and resilience is cut
Shaping armrest support required for can get after cutting surplus.
Preferably, each described roller-way is controlled by a gearbox, and by a motor to all described gearboxes
Power is provided.
Preferably, the section bar raw material being adopted is the sheet material with double shielding layer.
Preferably, in step c, give section bar orientation stretching by adjacent press-bending membrane module, adjusting tensile force makes section bar
Yield strength control in 290MPa ~ 350MPa.
Escalator handrail support cold-bending molding technology of the present invention, to the wedge angle of roller piece using repair a die, polish or rounding place
Reason mode, to ensure the smooth of roller piece surface, does not result in damage to section bar.Section bar enters from first roller-way, and often adjacent two
It is provided with rectification roll assembly between individual press-bending membrane module it is ensured that the orientation of section bar, fix section bar in press-bending membrane module
Position.According to the effect after being bent required for section bar, the diverse location on cylindrical roller sets roller piece, and
And according to the press-bending size needed for section bar and press-bending angle, the fine setting bending deformation quantity to section bar for the per pass roller-way, from first
Road roller-way is in that the mode being incremented by is bent to section bar to last one roller-way, so that the type out from last one roller-way
Material can reach required effect.
The invention has the beneficial effects as follows：The present invention cuts skill using the new technology roller in not damaged cold drawing molding technique
Art, is processed to escalator handrail support, is set by the analysis during escalator handrail rack forming, have studied roller and cutting roll
The key parameter of meter and its influence factor, thus propose the methods of rational Design on Plane.Base in the analysis of theoretical sum value
On plinth, further determined that the parameter in cold roll forming by analysis and research.Determine the quantity of roller-way and per pass roller-way to type
The bending deformation quantity to determine armrest support for the adjustment angle of material processing so that the frictional force that is subject in deformation process of section bar
Littleization, is easy to reduce shaping resistance under tensile force effect for the section bar, reduces the hard defects that extruding causes.Section bar is through multiple tracks roller
Both can guarantee that the minimum of process time behind road, be also avoided that section bar sustained damage, improve armrest support product quality and
Aesthetic measure, plays a protective role to section bar.
Due to the section bar not damaged being made using this technique, the section bar after being therefore molded, without carrying out hairline process again, saves
Gone the later stage to the surface treatment process of section bar hence it is evident that decrease product rework process and size later stage because polishing etc. factor lead
The deformation causing, is integrally improved the operating efficiency to the processing of escalator handrail support.And, volume drops in the manufacturing cost using this technique
Much larger than the purchase cost volume controlling, therefore, the not damaged for escalator handrail support is cold drawn, and there is absolute production in reply market
Advantage.
Specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the present invention is described in further detail, this enforcement
Example is only used for explaining the present invention, protection scope of the present invention is not constituted and limits.
The present embodiment provides escalator handrail support cold-bending molding technology, operates in accordance with the following steps：
A. stretch bending mold is fixed on stretch bending support, and described stretch bending mold includes straightway die main body and 26 ~ 28 road rollers
Road, preferably 28 roads, main body penetrates roller-way setting described in per pass, and described in per pass, roller-way all includes press-bending membrane module and correct roller
Assembly, described rectification roll assembly is arranged on the rear end of described press-bending membrane module, and described press-bending membrane module includes presenting and lower vertically sets
The two cylindrical milled heads put, left cut to circular arc mould and right cut to circular arc mould, milled head horizontally set described in two and two ends are equal
It is arranged on described left cut to circular arc mould and described right cut on circular arc mould, described straightway die main body is by dismountable mode
It is fastenedly connected to circular arc mould to circular arc mould and described right cut with described left cut respectively；Described milled head is on cylindrical roller
It is provided with the roller piece of concavo-convex quoit form, by the camber of regulating roller piece and the gap control of the vertically disposed milled head of two-phase
Per pass roller-way processed is 8 ° ~ 12 ° to the compacting bending deformation quantity of section bar, and preferably 8 °, roller-way is every in order to last one roller-way
Road roller-way increases the form that the compacting bending deformation quantity to section bar is 8 ° ~ 12 ° and arranges, preferably 8 °.
B. each described rectification roll assembly includes two correct rollers and bottom mounting bracket, and two described correct rollers are in laterally
It is set in parallel in described mounting bracket；Section bar enters first roller-way, and section bar top is passed through between two correct rollers, then will
The mid portion on section bar top is pressed in first roller-way to be placed on straightway die main body and be located at and fixes between two milled heads.
C. section bar runs to last one roller-way from first roller-way on straight line section die, and per pass roller-way passes through milled head
Giving the certain pressure on top surface of section bar in the outside of section bar makes the interlude of section bar and straightway die main body be fully contacted；And type
Material, when through per pass roller-way, gives section bar certain orientation stretching by two adjacent bending die assemblies between two roller-ways, makes type
Material is fully surrendered.
D. section bar is through last one roller-way, and the section bar reaching length-specific cuts off from stretch bending mold and is folded down, and resilience is cut
Shaping armrest support required for can get after cutting surplus.
Each described roller-way is controlled by a gearbox, and by a motor, all described gearboxes is provided dynamic
Power.The section bar raw material being adopted is the sheet material with double shielding layer.In step c, give type by adjacent press-bending membrane module
Material orientation stretching, adjusting tensile force makes the yield strength of section bar control in 290MPa ~ 350MPa, preferably 300MPa.
The present embodiment escalator handrail support cold-bending molding technology, to the wedge angle of roller piece using repairing a die, polish or rounding
Processing mode, to ensure the smooth of roller piece surface, does not result in damage to section bar.Section bar enters from first roller-way, often adjacent
It is provided with rectification roll assembly between two press-bending membrane modules it is ensured that the orientation of section bar, fix section bar in press-bending membrane module
Position.According to the effect after being bent required for section bar, the diverse location on cylindrical roller sets roller piece,
And according to the press-bending size needed for section bar and press-bending angle, the fine setting bending deformation quantity to section bar for the per pass roller-way, from the
One roller-way be in that the mode being incremented by is bent to section bar to last one roller-way, so that from last one roller-way out
Section bar can reach required effect.
The beneficial effect of the present embodiment is：The present invention cuts skill using the new technology roller in not damaged cold drawing molding technique
Art, is processed to escalator handrail support, is set by the analysis during escalator handrail rack forming, have studied roller and cutting roll
The key parameter of meter and its influence factor, thus propose the methods of rational Design on Plane.Base in the analysis of theoretical sum value
On plinth, further determined that the parameter in cold roll forming by analysis and research.Determine the quantity of roller-way and per pass roller-way to type
The bending deformation quantity to determine armrest support for the adjustment angle of material processing so that the frictional force that is subject in deformation process of section bar
Littleization, is easy to reduce shaping resistance under tensile force effect for the section bar, reduces the hard defects that extruding causes.Section bar is through multiple tracks roller
Both can guarantee that the minimum of process time behind road, be also avoided that section bar sustained damage, improve armrest support product quality and
Aesthetic measure, plays a protective role to section bar.
Due to the section bar not damaged being made using this technique, the section bar after being therefore molded, without carrying out hairline process again, saves
Gone the later stage to the surface treatment process of section bar hence it is evident that decrease product rework process and size later stage because polishing etc. factor lead
The deformation causing, is integrally improved the operating efficiency to the processing of escalator handrail support.And, volume drops in the manufacturing cost using this technique
Much larger than the purchase cost volume controlling, therefore, the not damaged for escalator handrail support is cold drawn, and there is absolute production in reply market
Advantage.
Claims (4)
1. escalator handrail support cold-bending molding technology it is characterised in that：Operate in accordance with the following steps：
A. stretch bending mold is fixed on stretch bending support, and described stretch bending mold includes straightway die main body and 26 ~ 28 road roller-ways,
Described straightway die main body penetrates roller-way setting described in per pass, and described in per pass, roller-way all includes press-bending membrane module and correct roller
Assembly, described rectification roll assembly is arranged on the rear end of described press-bending membrane module, and described press-bending membrane module includes setting up and down two
Cylindrical milled head, left cut to circular arc mould and right cut to circular arc mould, milled head horizontally set described in two and two ends are installed in
Described left cut to circular arc mould and described right cut on circular arc mould, described straightway die main body by dismountable mode respectively with
Described left cut is fastenedly connected to circular arc mould and described right cut to circular arc mould；Described milled head is to be provided with cylindrical roller
The roller piece of concavo-convex quoit form, by the camber of regulating roller piece and the clearance control per pass of the vertically disposed milled head of two-phase
Roller-way is 8 ° ~ 12 ° to the compacting bending deformation quantity of section bar, that is, with from first roller-way to last one roller-way per pass roller in order
Road increases the form setting that the compacting bending deformation quantity to section bar is 8 ° ~ 12 °；
B. each described rectification roll assembly includes two correct rollers and bottom mounting bracket, and two described correct rollers are in horizontally-parallel
It is arranged in described mounting bracket；Section bar enters first roller-way, section bar top is passed through between two correct rollers, then by section bar
The mid portion on top is pressed in first roller-way to be placed on straightway die main body and be located at and fixes between two milled heads；
C. section bar runs to last one roller-way from first roller-way on straight line section die, and per pass roller-way passes through milled head in type
The outside of material gives the certain pressure on top surface of section bar makes the interlude of section bar and straightway die main body be fully contacted；And section bar exists
When per pass roller-way, give section bar certain orientation stretching by two adjacent bending die assemblies between two roller-ways, so that section bar is filled
Divide surrender；
D. section bar is through last one roller-way, and the section bar reaching length-specific cuts off from stretch bending mold and is folded down, and resilience shearing is remaining
Shaping armrest support required for can get after amount.
2. escalator handrail support cold-bending molding technology according to claim 1 it is characterised in that：Each described roller-way by
One gearbox controls, and provides power by a motor to all described gearboxes.
3. escalator handrail support cold-bending molding technology according to claim 1 it is characterised in that：The section bar raw material being adopted
It is the sheet material with double shielding layer.
4. escalator handrail support cold-bending molding technology according to claim 1 it is characterised in that：In step c, by phase
Adjacent press-bending membrane module gives section bar orientation stretching, and adjusting tensile force makes the yield strength of section bar control in 290MPa ~ 350MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603581.8A CN104384266B (en) | 2014-11-03 | 2014-11-03 | Cold roll forming technology for escalator handrail bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603581.8A CN104384266B (en) | 2014-11-03 | 2014-11-03 | Cold roll forming technology for escalator handrail bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104384266A CN104384266A (en) | 2015-03-04 |
| CN104384266B true CN104384266B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410603581.8A Active CN104384266B (en) | 2014-11-03 | 2014-11-03 | Cold roll forming technology for escalator handrail bracket |
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| CN (1) | CN104384266B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107720511B (en) * | 2017-09-20 | 2020-05-12 | 江苏同力日升机械股份有限公司 | Heightened armrests without ears and bending forming method thereof |
| CN108655227B (en) * | 2018-05-03 | 2019-12-13 | 南京溧航仿生产业研究院有限公司 | Vertical numerical control flange machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD223647A1 (en) * | 1984-04-26 | 1985-06-19 | Univ Magdeburg Tech | DEVICE FOR PRODUCING CROPPED PROFILES |
| CN101905249B (en) * | 2010-07-30 | 2012-01-04 | 长沙仲腾金属材料科技有限公司 | Method and device for machining curved profiles in combination with online quenching temperature control in short flow |
| CN102218461A (en) * | 2011-03-02 | 2011-10-19 | 北京北方车辆集团有限公司 | Stretch-bending formation method of lower enclosing rib of rectangular hollow section gun turret |
| CN102218477B (en) * | 2011-04-26 | 2013-06-12 | 江苏同力机械有限公司 | Cold roll forming die for curved beam of passenger vehicle body |
| CN102151728B (en) * | 2011-05-09 | 2012-07-25 | 江苏同力机械有限公司 | Cold bending forming process for camber beam of car body of passenger car |
| CN102240706B (en) * | 2011-05-09 | 2013-02-27 | 江苏同力机械有限公司 | Cold-bending forming process of F-shaped cover plate |
| KR20120126454A (en) * | 2011-05-11 | 2012-11-21 | 주식회사 성우하이텍 | Ejecting device for stretch bender |
| KR101279357B1 (en) * | 2011-06-10 | 2013-07-04 | 주식회사 성우하이텍 | Welding device for stretch bender |
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2014
- 2014-11-03 CN CN201410603581.8A patent/CN104384266B/en active Active
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| CN104384266A (en) | 2015-03-04 |
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Address after: 212300 Liuwei Road, Danyang Economic Development Zone, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Tongli Risheng Machinery Co., Ltd. Address before: 212300 Liuwei Road, Danyang Economic Development Zone, Zhenjiang City, Jiangsu Province Patentee before: Jiangsu Tongli Machinery Co.,Ltd. |