CN104858277A - Corrugated duct forming method and equipment - Google Patents
Corrugated duct forming method and equipment Download PDFInfo
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- CN104858277A CN104858277A CN201510259499.2A CN201510259499A CN104858277A CN 104858277 A CN104858277 A CN 104858277A CN 201510259499 A CN201510259499 A CN 201510259499A CN 104858277 A CN104858277 A CN 104858277A
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Abstract
The invention aims at providing a corrugated duct forming machine which comprises a base, a rack and a motor and a speed reducer which are installed on the rack, an upper roller, a lower roller and a side roller are asymmetrically installed on the rack, the axis vertical line of the upper roller is located between the lower roller and the side roller, the axis vertical lines of the upper roller and the lower roller deviate from 20 mm to 40 mm, and the direction of motion of the side roller and the axis vertical line of the upper roller form an angle ranging from 20 degrees to 35 degrees. The problems that the forming accuracy of an existing corrugated duct is low, and the production efficiency is low are solved. According to the corrugated duct forming method and equipment, under the condition of integral one-forming of the corrugated duct, on one hand, the cylindricity and the end face roundness of a corrugated duct body can be guaranteed; on the other hand, manufacture of corrugated ducts with different corrugation distances, diameters and corrugation depths can be achieved, and the flexible degree of the manufacture is greatly improved.
Description
Technical field
The present invention relates to metal forming machinery field, especially a kind of cold forming or hot forming ripple bile duct manufacturing process, and utilize the equipment of the method.
Background technology
Boiler is as the conversion equipment of energy, and be widely used in the middle of industry and daily life, ripple bile duct is the core component of boiler, mainly contain following effect: 1, strengthen flue gas disturbance, promote the burning of fuel in burner hearth, increase furnace heating surface and amass, improve flue temperature; 2, flue diameter is reduced to reduce overall volume; Reduce flue, the temperature stress produced because of thermal expansion, has stronger retractility simultaneously; 3, absorbing thermal expansion, improves flexible, reduces thermal stress, the prolonged boiler life-span.It is the core component of boiler, has been widely used among boiler furnace.
At present, the making of ripple bile duct mainly contains two classes:
One, single ripple makes, by rolled reel, by pitch of waves heating, and rolling forming one by one, this technique, efficiency is low, low precision, is far not suitable with the demand of current boiler industry;
Two, monolithic molding, by rolled reel, overall time rolling forming, mainly there are the following problems to use the equipment of integral processing, and 1, the cylindricity of bellows and end face circularity is all difficult to ensure, the circularity of each ripple is also poor.2, roller is difficult to heat treatment, and wearability is poor.3, produce the bellows of the different pitch of waves, need change different rollers, flexibility is poor, cost is high.
Summary of the invention
The object of the present invention is to provide a kind of ripple bile duct manufacturing process, solve existing ripple bile duct forming machine forming accuracy low, the problem that production efficiency is low, this method and equipment are under the condition realizing ripple bile duct integral one-step molding, both cylindricity and the end face circularity of ripple bile duct cylindrical shell can have been ensured, the making of the different pitch of waves, different-diameter, different depth of convolution ripple bile duct can be realized again, the flexibility degree of making is improved greatly.
Another object of the present invention is to provide a kind of equipment utilizing the inventive method.
Technical scheme of the present invention is: a kind of ripple bile duct forming method, comprises the steps,
1), top roll, side roller, lower roll are arranged in frame, described top roll, side roller, lower roll are corrugation rolls, the axle center vertical line of described top roll is between lower roll and side roller, and the axle center vertical line of upper and lower roll offsets 20 ~ 40 millimeters, and the direction of motion of side roller becomes 20 ~ 35 degree with the axle center vertical line of top roll;
2), drum sheath is contained on top roll;
3), move up lower roll, until lower roll touches reel;
4), by reel by aligning materials device;
5), move up side roller, until side roller touches reel;
6), start top roll band movable reel to rotate;
6), make side roller, lower roll moves up, obtained ripple bile duct.
The inventive method only adopts three corrugation rolls, high-quality ripple bile duct can be made, cost of manufacture is cheap, the Product Precision produced is high, quality is good, and reel starts to rotate under the driving of roller friction torque, then progressively adjusts lower roll and moves up, adjust side roller simultaneously and tilt upward movement, ripple bile duct can be produced.Lower roll rises can be rolled into certain bellows-shaped by cylindrical shell, and the displacement that the degree of depth of ripple is risen by lower roll controls; Side roller rises mobile, has the retainer to cylindrical shell and positioning action; The roll forming of corrugation rolls decides the shaping of bellows.Upper and lower, three, side roller works simultaneously, cylindrical shell can be rolled into certain bellows-shaped on request, can ensure again cylindricity and the end face circularity of shaping rear ripple cylindrical shell, and when pending data requires consistent with the depth of convolution, a plate reel is configured as ripple bile duct.
The equipment of the inventive method is utilized to adopt following technical scheme: a kind of ripple bile duct forming machine, comprise base, frame, rack-mounted motor, reductor, asymmetric in frame top roll, lower roll, side roller are installed, top roll, lower roll, side roller are corrugation rolls, the axle center vertical line of described top roll is between lower roll and side roller, and the axle center vertical line skew 20 ~ 40 millimeters of upper and lower roll, the direction of motion of side roller becomes 20 ~ 35 degree with the axle center vertical line of top roll.Described top roll is main drive roll, and one end is provided with the transmission mechanism for driving top roll to rotate, and lower roll and side roller are driven by hydraulic jack respectively.
In order to ensure the location of initial reel coiling process, guarantee the axial dimension precision of bellows, this Equipments Setting has axially can accurate adjustment auxiliary to materials device.Describedly auxiliary materials device is arranged on the slideway that be arranged in parallel with roller, by material platform with to hinged forming material roller on material platform, described material platform is arranged on slideway.
Load and unload material for convenience, be also configured with and tilt balance roll feeding device and tilting device of touching the pillow.Tilt balance roll feeding device and be fixedly mounted on frame rear end, the top of top roll, described tilting balance roll feeding device is provided with pin-and-hole, for after tilting device of touching the pillow puts down, fixes top roll with steady pin.Described tilting device of touching the pillow is provided with roller bearing, and reversing device is driven by hydraulic jack.
Described transmission mechanism, is made up of motor and speed reducer, and motor and speed reducer belt connects, and is arranged symmetrically with up and down.
Described top roll, lower roll, side roller are the plain roller with keyway, rollers outer surface are provided with roller die and spacer, and for the formation of different waveforms, roller die and spacer are made up of two half molds.
Described top roll, lower roll, side roller are alloy steel material, and roller die is ductile iron material.
This equipment adopts three rollers of asymmetric arrangement, changes two traditional rollers or four roll structures, on cost-saving basis, improves operating efficiency.
Apparatus of the present invention except adopt ready-made corrugation rolls carry out shaping except, Combined corrugated roller can also be adopted, the roller die be made up of roller, half mold and spacer form, the different pitch of waves and waveform can be adjusted flexibly, wherein spacer is for adjusting the pitch of waves, roller die, for adjusting waveform, can effectively save production cost like this, and a roller just can realize the production of the bellows of plurality of specifications.For ensureing enough intensity, wearability, stablize size during mould hot-working, roller die selects ductile iron material.
Present device processing sheet thickness increases 55% ~ 60% than legacy equipment, and the scope of application is large; Adopt the combination of roller die and spacer, achieve the making of many specifications ripple bile duct.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the side view of the embodiment of the present invention 1;
Fig. 3 is the roller die of the embodiment of the present invention 1, spacer and roller assembly drawing;
Fig. 4 is the auxiliary to materials device schematic diagram of the embodiment of the present invention 1;
Fig. 5 is the tilting balance of the embodiment of the present invention 1 and handling materials device schematic diagram of touching the pillow.
specific implementation method:
Embodiment 1
As shown in Figure 1,2,3, 4, a kind of ripple bile duct forming machine, comprise base 1, frame 2, rack-mounted motor 3, reductor 4, asymmetric installation top roll 11, lower roll 12, side roller 13 in frame 2, the axle center vertical line of top roll 11 is between lower roll 12 and side roller 13, and the axle center vertical line skew 20 ~ 40 millimeters of upper and lower roll, the direction of motion of side roller becomes 20 ~ 35 degree with the axle center vertical line of top roll.
Top roll, lower roll, side roller are plain roller, be provided with roller die 21 and spacer 22, for the formation of different waveforms, top roll is main drive roll, one end is provided with the transmission mechanism for driving top roll to rotate, and transmission mechanism is made up of motor and speed reducer, and motor and speed reducer belt connects, be arranged symmetrically with up and down, lower roll and side roller are driven by hydraulic jack 8 respectively.
Also comprise on tilting device 5 of touching the pillow and be provided with roller bearing, be hinged on frame front end, reversing device is driven by hydraulic jack.
Also comprise a pair auxiliary to materials device, describedly auxiliaryly materials device is installed on the slideway 71 that be arranged in parallel with combination roller, auxiliary materials device to be formed by material platform 72 with to hinged location running roller 73 on material platform, slideway is arranged on to material platform, slideway moves.
Also comprise one and tilt balance roll feeding device 6, tilt balance roll feeding device and be fixedly mounted on frame rear end, the top of top roll, for after reversing device puts down, fix top roll with steady pin.
Top roll, lower roll, side roller are that steel alloy is made, and spacer and roller die are made up of, for ductile iron material is made two half molds.
During use, roller die and spacer are arranged on three rollers by demand.Then, adjustment tilts bascule, puts down and touch the pillow, and rolled barrel jacket on top roll, be placed between three rollers, rise of touching the pillow, bascule automatically terminates stress.Then, adjustment lower roll moves vertically upward, waiting contact reel after stop, using and auxiliary materials device to be adjusted, keeps two pairs of material rollers to take turns spacing identical with reel length.Adjustment side roller tilts upward movement, waiting contact reel after stop, starting top roll main transmission, equipment is started working, and reel starts to rotate under the driving of roller friction torque, then progressively adjusts lower roll and moves up, adjust side roller simultaneously and tilt upward movement.Lower roll rises, cylindrical shell can be rolled into certain bellows-shaped, the displacement that the degree of depth of ripple is risen by lower roll controls, side roller rises mobile, there is the retainer to cylindrical shell and positioning action, roller die, to ensureing that the circularity of each ripple of bellows has shaping effect, the strength size of shaping, is controlled by the displacement of lower roll according to situation about being shaped.Upper and lower, three, side roller works simultaneously, cylindrical shell can be rolled into certain bellows-shaped on request, can ensure again cylindricity and the end face circularity of shaping rear ripple cylindrical shell.When pending data requires consistent with the depth of convolution, a plate reel is just configured as ripple bile duct.Then will touch the pillow and put down, and tilt bascule, automatically stressed, safety unloads the ripple bile duct processed.
Embodiment 2
When bellows wall thickness is greater than more than 12 millimeters, be if desired shaped, just need in heating furnace, rolled bellows is heated to 700 DEG C ~ 750 DEG C, operate by embodiment 1 mode, do not complete forming requirements if once heat, heating for multiple times roll extrusion can be carried out depending on actual condition and complete.
Claims (8)
1. a ripple bile duct forming method, is characterized in that: comprise the steps,
1), top roll, side roller, lower roll are arranged in frame, described top roll, side roller, lower roll are corrugation rolls, the axle center vertical line of described top roll is between lower roll and side roller, and the axle center vertical line of upper and lower roll offsets 20 ~ 40 millimeters, and the direction of motion of side roller becomes 20 ~ 35 degree with the axle center vertical line of top roll;
2), drum sheath is contained on top roll;
3), move up lower roll, until lower roll touches reel;
4), by reel by aligning materials device;
5), move up side roller, until side roller touches reel;
6), start top roll band movable reel to rotate;
6), make side roller, lower roll moves up, obtained ripple bile duct.
2. a ripple bile duct forming machine, comprise base, frame, rack-mounted motor, reductor, it is characterized in that: asymmetric in frame top roll, lower roll, side roller are installed, top roll, lower roll, side roller are corrugation rolls, the axle center vertical line of described top roll is between lower roll and side roller, the axle center vertical line skew 20 ~ 40 millimeters of upper and lower roll, the direction of motion of side roller becomes 20 ~ 35 degree with the axle center vertical line of top roll, and described top roll is main drive roll, one end is provided with the transmission mechanism for driving top roll to rotate, and lower roll and side roller are driven by hydraulic jack respectively.
3. ripple bile duct forming machine according to claim 2, it is characterized in that: also comprise auxiliary to materials device, described auxiliary on the slideway that materials device is installed and roller be arranged in parallel, by material platform with to hinged forming material roller on material platform, described to expecting that platform is arranged on slideway.
4. ripple bile duct forming machine according to claim 2, it is characterized in that: also comprise and tilt balance roll feeding device, tilt balance roll feeding device and be fixedly mounted on frame rear end, the top of top roll, described tilting balance roll feeding device is provided with pin-and-hole, for after reversing device puts down, fix top roll with steady pin.
5. ripple bile duct forming machine according to claim 2, is characterized in that: also comprise tilting device of touching the pillow, and described tilting device of touching the pillow is provided with roller bearing, and reversing device is driven by hydraulic jack.
6. ripple bile duct forming machine according to claim 2, is characterized in that: described transmission mechanism, is made up of motor and speed reducer, and motor and speed reducer belt connects, and is arranged symmetrically with up and down.
7. ripple bile duct forming machine according to claim 2, it is characterized in that: described top roll, lower roll, side roller are the plain roller with keyway, rollers outer surface is provided with roller die and spacer, for the formation of different waveforms, roller die and spacer are made up of two half molds.
8. ripple bile duct forming machine according to claim 2, it is characterized in that: described top roll, lower roll, side roller are alloy steel material, roller die is ductile iron material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259499.2A CN104858277B (en) | 2015-05-21 | 2015-05-21 | Corrugated duct forming method and equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259499.2A CN104858277B (en) | 2015-05-21 | 2015-05-21 | Corrugated duct forming method and equipment |
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| CN104858277A true CN104858277A (en) | 2015-08-26 |
| CN104858277B CN104858277B (en) | 2017-02-01 |
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| CN201510259499.2A Active CN104858277B (en) | 2015-05-21 | 2015-05-21 | Corrugated duct forming method and equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111922116A (en) * | 2020-06-30 | 2020-11-13 | 江苏信泰化工装备有限公司 | Thick-wall corrugated pipe roll forming process |
| CN118023366A (en) * | 2024-04-11 | 2024-05-14 | 浙江博美特能源设备有限公司 | Metal bellows continuous forming device |
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| CN1160611A (en) * | 1996-03-25 | 1997-10-01 | 湖北重型机器集团有限公司 | Corrugated pipe rolling method and equipment |
| CN2593930Y (en) * | 2003-01-15 | 2003-12-24 | 衡水益通金属制品有限责任公司 | Corrugated shaper |
| JP2004066284A (en) * | 2002-08-05 | 2004-03-04 | Bridgestone Corp | Method and device for manufacturing metal core used for run flat tire |
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| CN201768783U (en) * | 2010-08-18 | 2011-03-23 | 铜陵市弘润机电有限责任公司 | Three-roller plate bending machine |
| US20110073208A1 (en) * | 2004-11-09 | 2011-03-31 | Denso Corporation | Double-wall pipe, method of manufacturing the same and refrigerant cycle device provided with the same |
| CN203578481U (en) * | 2013-11-08 | 2014-05-07 | 天津市瀚洋金属设备有限公司 | Forming machine for corrugations of shell |
| CN204657212U (en) * | 2015-05-21 | 2015-09-23 | 长治市锐帆机械制造有限公司 | A kind of ripple bile duct forming machine |
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2015
- 2015-05-21 CN CN201510259499.2A patent/CN104858277B/en active Active
Patent Citations (9)
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| US5593535A (en) * | 1992-11-13 | 1997-01-14 | Toyo Chemical Co., Ltd. | Apparatus for producing corrugated tube |
| CN1160611A (en) * | 1996-03-25 | 1997-10-01 | 湖北重型机器集团有限公司 | Corrugated pipe rolling method and equipment |
| JP2004066284A (en) * | 2002-08-05 | 2004-03-04 | Bridgestone Corp | Method and device for manufacturing metal core used for run flat tire |
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| US20110073208A1 (en) * | 2004-11-09 | 2011-03-31 | Denso Corporation | Double-wall pipe, method of manufacturing the same and refrigerant cycle device provided with the same |
| CN201500706U (en) * | 2009-08-27 | 2010-06-09 | 衡水益通金属制品有限责任公司 | Metal pipe corrugation forming machine |
| CN201768783U (en) * | 2010-08-18 | 2011-03-23 | 铜陵市弘润机电有限责任公司 | Three-roller plate bending machine |
| CN203578481U (en) * | 2013-11-08 | 2014-05-07 | 天津市瀚洋金属设备有限公司 | Forming machine for corrugations of shell |
| CN204657212U (en) * | 2015-05-21 | 2015-09-23 | 长治市锐帆机械制造有限公司 | A kind of ripple bile duct forming machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111922116A (en) * | 2020-06-30 | 2020-11-13 | 江苏信泰化工装备有限公司 | Thick-wall corrugated pipe roll forming process |
| CN118023366A (en) * | 2024-04-11 | 2024-05-14 | 浙江博美特能源设备有限公司 | Metal bellows continuous forming device |
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| Publication number | Publication date |
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| CN104858277B (en) | 2017-02-01 |
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