CN102909854A - Bending unit for plastic tubes - Google Patents

Bending unit for plastic tubes Download PDF

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Publication number
CN102909854A
CN102909854A CN2012104290659A CN201210429065A CN102909854A CN 102909854 A CN102909854 A CN 102909854A CN 2012104290659 A CN2012104290659 A CN 2012104290659A CN 201210429065 A CN201210429065 A CN 201210429065A CN 102909854 A CN102909854 A CN 102909854A
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CN
China
Prior art keywords
plastic tube
pressing mold
bending
top pressing
long
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Granted
Application number
CN2012104290659A
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Chinese (zh)
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CN102909854B (en
Inventor
郑合根
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG YONGYUAN PLASTIC CO., LTD.
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郑合根
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Priority to CN201210429065.9A priority Critical patent/CN102909854B/en
Publication of CN102909854A publication Critical patent/CN102909854A/en
Application granted granted Critical
Publication of CN102909854B publication Critical patent/CN102909854B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention provides a bending unit for plastic tubes. The bending device for plastic tubes comprises a preheating device and a bending device. The bending device comprises a bending bench. A plurality of pressure dies in a group arrayed in arc form are arranged on the bending bench. The arc shape formed by the arrayed pressure dies matches with a bent plastic tube. Ejector dies are arranged on two sides of the front of the corresponding group of pressure dies. The sides of the pressure dies, corresponding to the ejector dies, are respectively provided with arc faces matching with the bent plastic tube. A pull rod is arranged on the pressure dies. A driving device capable of driving the ejector dies to move to and fro in the bending direction of the pressure dies is arranged on the pull rod. The bending unit for plastic tubes can be used for batch bending of plastic tubes which are large and long, and is high in production efficiency, effective and highly worthy of popularization.

Description

A kind of plastic tube angle pipe equipment
Technical field
The present invention relates to a kind of swan neck system, belong to shape material manufacture field.
Background technology
In various workers' usefulness, civil building and electric equipment, be widely used plastic pipe, especially the PVC plastic tube of various diameters, be used for upper and lower conduit and blast pipe, cable penetration pipe etc.According to route of pipe line trend, tube bending must be become suitable angle.Chinese utility model patent ZL200620114554.5 and ZL201120411763.7 disclose a kind of tube bender of plastic tube of my invention, and it is applicable to the short and diameter of Length Ratio less than the plastic tube bend pipe of 200mm, its successful.Above-mentioned technology is not suitable for length more than 2 meters and the above plastic tube bend pipe of 200mm is made.In the engineering project such as bridge, tunnel, the bending wiring of long plastic tube and large specification plastic tube can appear in cable distribution.At present all be to adopt direct elbow to connect to realize the bending wiring of long plastic tube.In the prior art, the long tube of PVC plastic tube carries out the batch machining equipment of bend pipe also not to be succeeded in developing, and does not find in the industry report.According to the inventor's investigation, the bend pipe of large specification, plastic tube that length is large is used and will be obtained using in a lot of occasions.
Summary of the invention
The object of the present invention is to provide a kind of plastic tube angle pipe equipment, it is applicable to the bend pipe processing of large, the high length plastic tube of specification, and its production efficiency is high, convenient batch production.
The technical scheme that the technical problem that the present invention solves adopts is:
A kind of plastic tube angle pipe equipment; comprise preheating device and swan neck system; it is characterized in that swan neck system comprises bending platform; bending platform is provided with one group of pressured mould of some curved arrangements; the pressured mould arcuate shape of arranging is the shape of the plastic tube that bends; the front part sides of corresponding one group of pressured mould is provided with the top pressing mold; the corresponding side surface of pressured mould and top pressing mold is respectively equipped with the cambered surface that is complementary with the plastic tube that bends; the top pressing mold is provided with pull bar, and pull bar is provided with removable top pressing mold to the curved pressure direction of pressured mould drive unit back and forth.Preheating device discloses often in the prior art, has to adopt to carry out preheating in being provided with the preheating cabinet of electrothermal tube.During use; at first the long plastic tube workpiece that is provided with the fillers such as sandstone is placed on preheating in the preheating device; after preheating is finished; long plastic tube workpiece is placed on the bending platform between pressured mould and the top pressing mold; start drive unit; drive unit drives the top pressing mold workpiece is moved to pressured mould direction; the top pressing mold is positioned at the two ends of workpiece; the workpiece middle part is positioned on one group of pressured mould of curved arrangement; under the effect of drive unit, workpiece bends to the shape of pressured mould arc, bends to predetermined angle; workpiece is realized forming elbow after the cooling, and filler usually can Reusability.The bend pipe surfaces externally and internally that processes is smooth, attractive and durable, and knee caliber and straight tube place are basic identical.
During implementation, preheating device comprises the long preheating cabinet that is provided with loam cake, and the preheating cabinet bottom is provided with electro-heat equipment, and long preheating cabinet is provided with two rotating long rollers, the gap of two rotating long rollers is provided with power set and can drives the wherein rotation of a long roller less than the diameter of bending plastic tube.During use, the long plastic tube workpiece that is provided with the fillers such as sandstone is placed between two long rollers, loam cake is shut, electro-heat equipment work, power set drive wherein long roller rotation, owing to be provided with the Heavy Weight of filler workpiece, an other long roller also rotates simultaneously, workpiece rotates in long preheating cabinet, realizes the even preheating of workpiece.
During implementation, the two ends of two long rollers are provided with bearing block, and power set comprise motor, gearbox, but motor is respectively equipped with pitch wheel by belt pulley and belt transfer gear box on the output shaft of gearbox and the long roller wherein.During use, motor operation drives the gearbox transmission, the gear of the long roller of gear driven of output shaft of gear-box, and long roller rotates.
During implementation, electro-heat equipment is some heat-generating pipes that are arranged in the preheating cabinet bottom, is arranged with respectively independently loam cake on every heat-generating pipe, and is pivotally connected between loam cake and preheating cabinet.Adopt this structure, can adopt the heating of part heat-generating pipe according to the workpiece of different length, to reduce energy waste, the loam cake of heating part is closed, and has reduced heat and has distributed, and has improved the thermal efficiency.
During implementation, drive unit on the pull bar comprises drive chassis and is located at bearing block and the nut seat of frame, be provided with bearing in the bearing block, interference fit has transmission nut in the bearing, be provided with transmission nut in the nut seat, be provided with in the transmission nut with its adaptive drive lead screw and cooperate, transmission nut in the bearing block is provided with belt pulley, pull bar and drive lead screw front end are provided with transiting rod, the movable connection between pull bar and transiting rod, be rotatably connected between drive lead screw and transiting rod, be provided with connecting rod between the transiting rod of both sides, drive chassis is provided with motor and gearbox, but motor by belt pulley and belt transfer gear box, the output shaft of gearbox can drive transmission nut by belt pulley and belt and rotate.The present invention adopts the screw rod transmission principle, and machine operation drives transmission nut by driving belt and rotates, and the removable top of screw mandrel pressing mold to the curved pressure direction of pressured mould back and forth.The movable connection between pull bar and transiting rod, when on the bending platform that long plastic tube workpiece will be placed between pressured mould and the top pressing mold, can open pull bar, workpiece is easy to be placed on the bending platform, then put down pull bar, the top pressing mold is positioned on the bending platform, then enters next procedure.
During implementation, the bending platform between pressured mould and the top pressing mold has the heat retaining and exothermal device.The effect of heat retaining and exothermal device is, when the long plastic tube workpiece after preheating is finished is placed on the bending platform between pressured mould and the top pressing mold, further workpiece is incubated, and descends to avoid workpiece temperature, affects the effect of bend pipe.Especially when winter temperature was relatively lower, the heat retaining and exothermal device must be worked.
Adjustable structure can be adopted in the gap of two long rollers on the preheating cabinet of the present invention, carries out preheating with the workpiece that adapts to different size.The mould of pressured mould and the replaceable different cambered surfaces of top pressing mold is to adapt to the workpiece bend pipe of different size.Pressured mould position on the bending platform can be regulated, to adapt to the workpiece bend pipe of different arc angles.The connecting rod that connects between transiting rod can be regulated usually, and drive chassis can move, and the top pressing mold spacing of both sides can adjustable range, with the use for the plastic tube of different length.
Adopt structure of the present invention to the bend pipe processing of diameter 75mm, length 2000mm and above plastic tube, its effect is more obvious.
The invention has the beneficial effects as follows: adopt structure of the present invention, can carry out the batch production of bend pipe processing to the plastic tube of large specification, length length, its production efficiency is high, and is effective, has larger promotional value.
Description of drawings
Below in conjunction with drawings and Examples invention is further specified.
Fig. 1 is the structural representation of embodiment of the invention angle pipe equipment.
Fig. 2 is the structural representation of the power set of embodiment of the invention preheating device.
Fig. 3 is the transmission mechanism structural representation of embodiment of the invention drive unit.
Fig. 4 is embodiment of the invention top stamper architecture schematic diagram.
Among the figure: 1, preheating device 2, swan neck system 3, drive unit 11, preheating cabinet 12, long roller 13, heat-generating pipe 14, loam cake 15, bearing block 1, motor 17, belt 18, gearbox 19, gear 21, bending platform 22, top pressing mold 23, pull bar 24, transiting rod 25, pressured mould 26, connecting rod 27, heat retaining and exothermal pipe 28, arc-shaped concave 31, bearing block 2 32, driving pulley 33, nut seat 34, drive lead screw 35, drive chassis 36, motor 37, driving belt 38, reduction box
The specific embodiment
In Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of plastic tube angle pipe equipment, comprise preheating device 1 and swan neck system 2, swan neck system 2 comprises bending platform 21, bending platform 21 is provided with one group of pressured mould 25 of some curved arrangements, and the front part sides of corresponding one group of pressured mould 25 is provided with top pressing mold 22, and pressured mould 25 is respectively equipped with the arc-shaped concave 28 that is complementary with the plastic tube that bends with the side of top pressing mold 21, pressured mould 25 is basic identical with the structure of top pressing mold 21, as shown in Figure 4.Bending platform 21 between pressured mould 25 and the top pressing mold 22 has heat retaining and exothermal pipe 27, top pressing mold 21 is provided with pull bar 23, pull bar 23 is provided with removable top pressing mold 22 to pressured mould 25 curved pressure directions drive unit 3 back and forth, drive unit 3 on the pull bar 23 comprises drive chassis 35 and is located at bearing block 2 31 and the nut seat 33 of drive chassis 35, be provided with bearing in the bearing block 2 31, interference fit has transmission nut in the bearing, be provided with transmission nut in the nut seat 33, be provided with in the transmission nut with its adaptive drive lead screw 34 and cooperate, transmission nut in the bearing block 2 31 is provided with driving pulley 32, pull bar 23 is provided with transiting rod 24 with drive lead screw 34 front ends, 24 movable connections of pull bar 23 and transiting rod, 24 of drive lead screw 34 and transiting rods are rotatably connected, 24 of the transiting rods of both sides are provided with connecting rod 26, in conjunction with Fig. 3, drive chassis 35 is provided with motor 36 and reduction box 38, but motor 36 is by belt pulley and driving belt 37 transmission reduction boxes 38, and the output shaft of reduction box 38 can drive transmission nut by belt pulley and belt and rotate.Preheating device 1 comprises the long preheating cabinet 11 that is provided with loam cake 14, preheating cabinet 11 bottoms are provided with some heat-generating pipes 13, be arranged with respectively independently loam cake 14 on every heat-generating pipe 13,11 of loam cake 14 and preheating cabinets are pivotally connected, long preheating cabinet 11 is provided with two rotating long rollers 12, the gap of two rotating long rollers 12 is less than the diameter of bending plastic tube, be provided with power set and can drive the wherein rotation of a long roller 11, the two ends of two long rollers 11 are provided with bearing block 1, in conjunction with Fig. 2, power set comprise motor 16, gearbox 18, but motor 16 is respectively equipped with pitch wheel 19 by belt pulley and belt 17 transfer gear box 18 on the output shaft of gearbox 18 and the long roller 11 wherein.
During use, at first the long plastic tube workpiece that is provided with the fillers such as sandstone is placed on preheating device 1 interior preheating, the long plastic tube workpiece that is provided with the fillers such as sandstone is placed between two long rollers 12, loam cake 14 is shut, motor 16 work drive gearbox 18 transmissions, the gear of the long roller of gear driven of gearbox 18 output shafts, long roller 12 rotates.Power set drive wherein long roller 12 rotations, owing to be provided with the Heavy Weight of filler workpiece, an other long roller 12 also rotates simultaneously, and workpiece is realized the even preheating of workpiece in long preheating cabinet 11 interior rotations.After preheating is finished, long plastic tube workpiece is placed on the bending platform 21 between pressured mould 25 and the top pressing mold 22, the present invention adopts the screw rod transmission principle, motor 36 work, driving transmission nut by driving belt 37 rotates, drive lead screw 34 removable top pressing molds 22 to pressured mould 25 curved pressure directions back and forth, 24 movable connections of pull bar 23 and transiting rod, when on the bending platform 21 that will be placed on long plastic tube workpiece between pressured mould 25 and the top pressing mold 22, can open pull bar 23, workpiece is easy to be placed on the bending platform 21, then puts down pull bar 23, and top pressing mold 22 is positioned on the bending platform 21, starter motor 36, motor 36 drives top pressing mold 22 by drive lead screw 34 workpiece is moved to pressured mould 25 directions, and top pressing mold 21 is positioned at the two ends of workpiece, and the workpiece middle part is positioned on one group of pressured mould 25 of curved arrangement, under the effect of motor 36, workpiece bends to the shape of pressured mould 25 arcs, and after the cooling, workpiece is at the arc-shaped concave 28 interior realization forming elbows of pressured mould 25 and top pressing mold 22.The effect of heat retaining and exothermal pipe 27 is, when the long plastic tube workpiece after preheating is finished is placed on the bending platform 21 between pressured mould 25 and the top pressing mold 22, further workpiece is incubated, and descends to avoid workpiece temperature, affects the effect of bend pipe.
Adjustable structure can be adopted in the gap of two long rollers 12 on the preheating cabinet 11 of the embodiment of the invention, carries out preheating with the workpiece that adapts to different size.The mould of pressured mould 25 and top pressing mold 22 replaceable different arc-shaped concaves 28 is to adapt to the workpiece bend pipe of different size.Pressured mould 25 positions on the bending platform 12 can be regulated, to adapt to the workpiece bend pipe of different arc angles.Preheating cabinet 11 can adopt 13 heatings of part heat-generating pipe according to the workpiece of different length, and to reduce energy waste, the loam cake 14 of heating part is closed, and has reduced heat and has distributed, and has improved the thermal efficiency.
At last, it is also to be noted that what more than enumerate only is specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from disclosed content of the present invention all should be thought protection scope of the present invention.

Claims (6)

1. plastic tube angle pipe equipment; comprise preheating device and swan neck system; it is characterized in that swan neck system comprises bending platform; swan neck system comprises bending platform; bending platform is provided with one group of pressured mould of some curved arrangements; the pressured mould arcuate shape of arranging is the shape of the plastic tube that bends; the front part sides of corresponding one group of pressured mould is provided with the top pressing mold; the corresponding side surface of pressured mould and top pressing mold is respectively equipped with the cambered surface that is complementary with the plastic tube that bends; the top pressing mold is provided with pull bar, and pull bar is provided with removable top pressing mold to the curved pressure direction of pressured mould drive unit back and forth.
2. a kind of plastic tube angle pipe equipment according to claim 1, it is characterized in that preheating device comprises the long preheating cabinet that is provided with loam cake, the preheating cabinet bottom is provided with electro-heat equipment, long preheating cabinet is provided with two rotating long rollers, the gap of two rotating long rollers is provided with power set and can drives the wherein rotation of a long roller less than the diameter of bending plastic tube.
3. a kind of plastic tube angle pipe equipment according to claim 2, the two ends that it is characterized in that two long rollers are provided with bearing block, power set comprise motor, gearbox, but motor is respectively equipped with pitch wheel by belt pulley and belt transfer gear box on the output shaft of gearbox and the long roller wherein.
4. according to claim 1,2 or 3 described a kind of plastic tube angle pipe equipments, it is characterized in that the drive unit on the pull bar comprises drive chassis and the bearing block and the nut seat that are located at frame, be provided with bearing in the bearing block, interference fit has transmission nut in the bearing, be provided with transmission nut in the nut seat, be provided with in the transmission nut with its adaptive drive lead screw and cooperate, transmission nut in the bearing block is provided with belt pulley, pull bar and drive lead screw front end are provided with transiting rod, the movable connection between pull bar and transiting rod, be rotatably connected between drive lead screw and transiting rod, be provided with connecting rod between the transiting rod of both sides, drive chassis is provided with motor and gearbox, but motor by belt pulley and belt transfer gear box, the output shaft of gearbox can drive transmission nut by belt pulley and belt and rotate.
5. according to claim 1,2 or 3 described a kind of plastic tube angle pipe equipments, it is characterized in that the bending platform between pressured mould and the top pressing mold has the heat retaining and exothermal device.
6. a kind of plastic tube angle pipe equipment according to claim 4 is characterized in that the bending platform between pressured mould and the top pressing mold has the heat retaining and exothermal device.
CN201210429065.9A 2012-10-24 2012-10-24 Bending unit for plastic tubes Expired - Fee Related CN102909854B (en)

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Application Number Priority Date Filing Date Title
CN201210429065.9A CN102909854B (en) 2012-10-24 2012-10-24 Bending unit for plastic tubes

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Application Number Priority Date Filing Date Title
CN201210429065.9A CN102909854B (en) 2012-10-24 2012-10-24 Bending unit for plastic tubes

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CN102909854B CN102909854B (en) 2015-04-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105269801A (en) * 2015-11-25 2016-01-27 天津金鹏管业有限公司 Full-automatic power pipe bending machine
CN110239067A (en) * 2019-07-15 2019-09-17 浙江甬源塑业有限公司 A kind of vertical plastic pipe angle pipe equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2080019U (en) * 1990-12-18 1991-07-03 抚顺市塑料工业技术开发公司 Steel tube composite polythene tube shaping machine
EP0486237A1 (en) * 1990-11-13 1992-05-20 McKECHNIE PLASTICS LIMITED Improved method and apparatus for shaping thermoplastic tubes
CN2534017Y (en) * 2002-04-04 2003-02-05 陆寿明 Gas combustion steel tube bending steel plastic conversion parts
WO2006005942A1 (en) * 2004-07-09 2006-01-19 Radius Engineering Limited Bending apparatus
CN202878673U (en) * 2012-10-24 2013-04-17 郑合根 Elbow device of plastic pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0486237A1 (en) * 1990-11-13 1992-05-20 McKECHNIE PLASTICS LIMITED Improved method and apparatus for shaping thermoplastic tubes
CN2080019U (en) * 1990-12-18 1991-07-03 抚顺市塑料工业技术开发公司 Steel tube composite polythene tube shaping machine
CN2534017Y (en) * 2002-04-04 2003-02-05 陆寿明 Gas combustion steel tube bending steel plastic conversion parts
WO2006005942A1 (en) * 2004-07-09 2006-01-19 Radius Engineering Limited Bending apparatus
CN202878673U (en) * 2012-10-24 2013-04-17 郑合根 Elbow device of plastic pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105269801A (en) * 2015-11-25 2016-01-27 天津金鹏管业有限公司 Full-automatic power pipe bending machine
CN110239067A (en) * 2019-07-15 2019-09-17 浙江甬源塑业有限公司 A kind of vertical plastic pipe angle pipe equipment

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Owner name: ZHEJIANG YONGYUAN PLASTIC CO., LTD.

Free format text: FORMER OWNER: ZHENG HEGEN

Effective date: 20140225

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Effective date of registration: 20140225

Address after: 324104 Zhejiang province Jiangshan City Qing town, Longfei Road No. 23

Applicant after: ZHEJIANG YONGYUAN PLASTIC CO., LTD.

Address before: Qing Cai Town, village 324109 Zhejiang province Jiangshan City Caijiaying bridge head No. 24

Applicant before: Zheng Hegen

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Granted publication date: 20150422

Termination date: 20151024

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