EP2995393A1 - Cintreuse - Google Patents

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Info

Publication number: EP2995393A1
Authority: EP; European Patent Office
Prior art keywords: hydraulic cylinder; bending machine; anchoring; axis; pipe bending
Prior art date: 2014-09-11
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP14382340.9A

Other languages

German (de)

English (en)

Other versions

EP2995393B1 (fr

Inventor

Gonzalo San Vicente Munoz

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.)

Melchor Gabilondo SA

Original Assignee

Melchor Gabilondo SA

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2014-09-11

Filing date

2014-09-11

Publication date

2016-03-16

2014-09-11 Application filed by Melchor Gabilondo SA filed Critical Melchor Gabilondo SA

2014-09-11 Priority to EP14382340.9A priority Critical patent/EP2995393B1/fr

2014-09-11 Priority to ES14382340T priority patent/ES2781593T3/es

2016-03-16 Publication of EP2995393A1 publication Critical patent/EP2995393A1/fr

2020-01-01 Application granted granted Critical

2020-01-01 Publication of EP2995393B1 publication Critical patent/EP2995393B1/fr

Status Active legal-status Critical Current

2034-09-11 Anticipated expiration legal-status Critical

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Classifications

- 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
- B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies

Definitions

the present invention relates to a bending machine which has application in the industry of pipe forming machines and allows changing the position of the guide rollers quickly and easily, which at the same time assures a parallel position between the plates and with respect to the axis of movement of the hydraulic cylinder, all this as a result of the anchoring elements for anchoring the plates to said cylinder.
the machine also provides improvements from the viewpoint of making machine manipulation easier for a user who often has to hold the pipe which is being bent at the same time, allowing the rotation of the drive lever without having to move the machine or its axis of movement.
Bending machines used for bending metal pipes as defined in the preamble of Claim 1 are known today. These bending machines can be differentiated primarily between fixed bending machines or installations, such as that described in patent EP2181780 , which discloses a machine that can be anchored to the floor in which, by means of a series of gears wheels, power is transmitted to a die producing the bending; and manual machines and devices or machines and devices which can be transported by a user to the place in which they will be used, such can those described in utility models CN2406744U and CN203678956U .
the present invention relates to a pipe bending machine as defined in Claim 1 which allows making its handling easier and significantly reducing operation times.
the machine proposed by the invention comprises a base body integral with a hydraulic cylinder and to which there are anchored an upper plate and a lower plate between which there are arranged two guide rollers which can be positioned in a plurality of positions between said two plates as a result of a plurality of holes arranged at specific distances in both plates.
Said hydraulic cylinder has associated therewith at the end of the rod a bending die which is interchangeable depending on the diameter of pipe to be bent, having a curved convex surface intended for contacting the pipe to be bent, such that the chosen die produces the desired bent on the pipe. Therefore, when the hydraulic cylinder moves the bending die against the pipe which is supported on the guide rollers, a section of the pipe located between the guide rollers is formed, pushing against said guide rollers and giving it a bent shape.
the lower plate is fixed to the base body integral with the hydraulic cylinder by means of lower anchoring elements consisting of L-shaped flat bars, each of which has two anchoring points keeping the lower plate in a plane parallel to the axis of movement.
Both L-shaped flat bars have an open groove which will be associated with two positioning notches arranged in the lower plate, in order to assure that the attachment between them maintains the orthogonal position thereof. Said attachment is secured by means of applying weld beads.
the upper plate is fixed to the base body of the hydraulic cylinder by means of upper anchoring elements consisting of clamps, each of which has an anchoring point keeping said upper plate parallel to the lower plate as a result of it being fixed to the hydraulic cylinder and supported on the guide rollers which are in turn supported on the lower plate.
Both clamps have an open groove which will be associated with two positioning notches arranged in the upper plate, in order to assure that the attachment between them keeps the orthogonal position thereof. Said attachment is secured by means of applying weld beads.
each upper anchoring element coinciding with one of the anchoring points of each lower anchoring element, preferably with the upper anchoring element, is contemplated, such that by coinciding said anchoring the alignment between the plates and the hydraulic cylinder is further assured, in addition to making the disassembly of the lower plate, if necessary, faster.
the bending machine comprising a drive lever located in the hydraulic cylinder at an end opposite the base body is also contemplated.
Said drive lever can actuate the hydraulic cylinder by means of rotating the lever with respect to a drive axis contained in a plane parallel to the plates, i.e., by a user moving the drive lever up or down with respect to a horizontal axis.
the drive lever can also rotate with respect to an axis of rotation which is perpendicular both to the axis of movement and to the drive axis, i.e., a vertical axis, without this modifying the position of the axis of movement itself.
the machine therefore provides improvements from the viewpoint of machine manipulation, given that a user who is on one side of the machine can rotate the lever to make its actuation easier without having to stretch his/her arm to that end since this is already in a fixed position.
the machine comprising an element for supporting the machine on a surface where it is placed
said support element comprises an upper projection which can be housed in a hole located in the lower plate. Therefore, the support element is embedded in the body of the machine, being kept fixed by the actual weight of machine, which enables the support element to be easily separated from the body when an operator lifts the machine by manually picking it up.
Said support element can consist of a tripod comprising three collapsible legs, for example.
the present invention comprising a collapsible handle which is linked to the anchoring bolt fixing the upper plate is contemplated.
the plates comprising handles for manipulation and manual transport by a user, where said handles are located on the front edge of the upper plate and lower plate, is also contemplated.
Providing wheels in the lower part of the end of the hydraulic cylinder opposite the base body is also contemplated to enable moving the machine, once separated from the support element, by pulling on one of the manipulation handles of the plates while said wheels remain in contact with the floor, therefore freeing the user from having to carry the machine in order to move it.
the bending machine proposed by the invention comprises a base body (12) integral with a hydraulic cylinder (4) and to which there are anchored an upper plate (1) and a lower plate (2) between which there are arranged two guide rollers (3) which can be positioned in a plurality of positions between said two plates (1, 2) as a result of a plurality of holes arranged at specific distances in both plates.
Said hydraulic cylinder (4) which can actuate according to an axis of movement (4') has associated therewith at the end of the rod an interchangeable bending die (5), having a curved convex surface intended for contacting the pipe to be bent, such that the chosen bending die (5) produces the desired bent on the pipe.
an interchangeable bending die (5) having a curved convex surface intended for contacting the pipe to be bent, such that the chosen bending die (5) produces the desired bent on the pipe.
the lower plate (2) is fixed to the base body (12) integral with the hydraulic cylinder (4) by means of lower anchoring elements (6) consisting of L-shaped flat bars, each of which has two anchoring points, keeping the lower plate (2) in a plane parallel to the axis of movement (4').
the upper plate (1) is fixed to the base body (12) by means of upper anchoring elements (7) consisting of clamps, each of which has an anchoring point, keeping the upper plate (1) parallel to the lower plate (2) as a result of it being fixed to the base body (12) and supported on the guide rollers (3) which are in turn supported on the lower plate (2).
both the L-shaped flat bars (6) and the clamps (7) have open grooves (6', 7') which are associated with two positioning notches (1", 2") arranged both in the upper plate (1) and in the lower plate (2), in order to assure that the attachment between them maintains the orthogonal position thereof.
the attachment between the clamps (7) and the base body (12) by means of a bolt (19) allows pivoting the upper plate (1) on the upper anchoring elements (7), allowing access to the guide rollers (3) and the bending die (5) to adapt the operation to different pipe sizes.
each upper anchoring element (7) coincides with one of the anchoring points of each lower anchoring element (6), specifically with the upper anchoring element, such that by coinciding said anchoring the alignment between the plates and the hydraulic cylinder is further assured.
the bending machine comprises a drive lever (8) located in the hydraulic cylinder at an end opposite the base body (12).
Said drive lever (8) can actuate the hydraulic cylinder (4) by means of rotating the lever with respect to a drive axis (9) contained in a plane parallel to the plates (1, 2).
the drive lever (8) can also rotate with respect to an axis of rotation (10) which is perpendicular both to the axis of movement (4') and to the drive axis (9), i.e., a vertical axis, without this modifying the position of the axis of movement (4') itself.
This rotation is allowed by means of a bushing (11) made by stamping, as seen in Figure 8 , arranged on the hydraulic cylinder (4).
the rotation of the drive lever (8) with respect to the axis of rotation (10) is limited between two limit positions defined by the contact between two lugs (13) of the bushing (11), which is arranged on a recess, and two stop areas located in the hydraulic cylinder (4).
the machine comprises a support element (14) for supporting the machine on a surface, for which said support element (14) comprises an upper projection (15) which can be housed in a hole located in the lower plate (2).
the support element (14) consists of a tripod comprising three collapsible legs (16) which can be deployed towards a central position to make transport easier.
the machine comprises a collapsible handle (17) associated with the anchoring bolt (19) fixing the upper plate.
the plates (1, 2) comprising handles (1', 2') for manipulation and manual transport by a user is also contemplated.
the handles (1', 2') of the plates (1, 2) can be covered by a plastic material for a better grip and comfort.
the main purpose of the handle (1') of the upper plate (1) together with the pivoting handle (17) is to enable lifting/lowering the body from/onto the support element (14) easily.
both handles (1', 2') of the plates (1, 2) can be used to enable, in relation to the wheels (18) arranged in the lower part of the end of the hydraulic cylinder (4) opposite the base body (12), comfortably moving the body of the bending machine.

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Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Bending Of Plates, Rods, And Pipes (AREA)

EP14382340.9A 2014-09-11 2014-09-11 Cintreuse Active EP2995393B1 (fr)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
EP14382340.9A EP2995393B1 (fr)	2014-09-11	2014-09-11	Cintreuse
ES14382340T ES2781593T3 (es)	2014-09-11	2014-09-11	Máquina curvadora

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP14382340.9A EP2995393B1 (fr)	2014-09-11	2014-09-11	Cintreuse

Publications (2)

Publication Number	Publication Date
EP2995393A1 true EP2995393A1 (fr)	2016-03-16
EP2995393B1 EP2995393B1 (fr)	2020-01-01

Family

ID=51868158

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP14382340.9A Active EP2995393B1 (fr)	2014-09-11	2014-09-11	Cintreuse

Country Status (2)

Country	Link
EP (1)	EP2995393B1 (fr)
ES (1)	ES2781593T3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN109226382A (zh) *	2018-10-25	2019-01-18	海盐新星机电有限公司	一种可调节弯曲角度的手动式液压弯管机
CN110153247A (zh) *	2019-07-08	2019-08-23	中国地震局工程力学研究所	一种简易钢管弯管机
CN110238252A (zh) *	2019-06-17	2019-09-17	国家能源投资集团有限责任公司	弧形扁钢制作装置以及扁钢角接处的连接方法
CN110918711A (zh) *	2018-09-20	2020-03-27	张家港百舸光电科技有限公司	一种稳定性高的多功能弯管机
CN110918706A (zh) *	2018-09-20	2020-03-27	张家港百舸光电科技有限公司	一种新型防震弯管机
CN112191714A (zh) *	2020-10-28	2021-01-08	上海市地质勘查技术研究院	一种方便钢管取出的岩土工程用弯管机
CN113231505A (zh) *	2021-04-28	2021-08-10	嘉兴市双圆机械制造股份有限公司	一种高效的自动弯管机

Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1026157B (de) *	1957-02-01	1958-03-13	Paul Schmidt	Biegevorrichtung
US2867261A (en) *	1955-02-23	1959-01-06	Blackhawk Mfg Co	Pipe bender with bend indicator means on pivotal reaction blocks
US2871908A (en) *	1956-11-30	1959-02-03	Blackhawk Mfg Co	Art of bending and ejecting bent pipes
DE1918949A1 (de) *	1969-04-15	1970-10-22	Fritz Fischer	Rohrbiegevorrichtung
CN2406744Y (zh)	2000-01-28	2000-11-22	庄宗超	一种便携式手动弯管机
EP2181780A1 (fr)	2008-10-28	2010-05-05	CML International S.P.A.	Cintreuse à cintrer les tubes avec une transmission du mouvement à l'outil de cintrage améliorée
DE102011118654A1 (de) *	2011-11-12	2013-05-16	REMS-WERK Christian Föll und Söhne GmbH	Abdrückvorrichtung zum Herausdrücken von gebogenen Rohren aus Biegesegmenten von Biegeeinrichtungen
CN203678956U (zh)	2013-12-30	2014-07-02	神旺工业有限公司	弯管器

2014
- 2014-09-11 ES ES14382340T patent/ES2781593T3/es active Active
- 2014-09-11 EP EP14382340.9A patent/EP2995393B1/fr active Active

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2867261A (en) *	1955-02-23	1959-01-06	Blackhawk Mfg Co	Pipe bender with bend indicator means on pivotal reaction blocks
US2871908A (en) *	1956-11-30	1959-02-03	Blackhawk Mfg Co	Art of bending and ejecting bent pipes
DE1026157B (de) *	1957-02-01	1958-03-13	Paul Schmidt	Biegevorrichtung
DE1918949A1 (de) *	1969-04-15	1970-10-22	Fritz Fischer	Rohrbiegevorrichtung
CN2406744Y (zh)	2000-01-28	2000-11-22	庄宗超	一种便携式手动弯管机
EP2181780A1 (fr)	2008-10-28	2010-05-05	CML International S.P.A.	Cintreuse à cintrer les tubes avec une transmission du mouvement à l'outil de cintrage améliorée
DE102011118654A1 (de) *	2011-11-12	2013-05-16	REMS-WERK Christian Föll und Söhne GmbH	Abdrückvorrichtung zum Herausdrücken von gebogenen Rohren aus Biegesegmenten von Biegeeinrichtungen
CN203678956U (zh)	2013-12-30	2014-07-02	神旺工业有限公司	弯管器

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN110918711A (zh) *	2018-09-20	2020-03-27	张家港百舸光电科技有限公司	一种稳定性高的多功能弯管机
CN110918706A (zh) *	2018-09-20	2020-03-27	张家港百舸光电科技有限公司	一种新型防震弯管机
CN109226382A (zh) *	2018-10-25	2019-01-18	海盐新星机电有限公司	一种可调节弯曲角度的手动式液压弯管机
CN110238252A (zh) *	2019-06-17	2019-09-17	国家能源投资集团有限责任公司	弧形扁钢制作装置以及扁钢角接处的连接方法
CN110153247A (zh) *	2019-07-08	2019-08-23	中国地震局工程力学研究所	一种简易钢管弯管机
CN110153247B (zh) *	2019-07-08	2024-02-02	中国地震局工程力学研究所	一种简易钢管弯管机
CN112191714A (zh) *	2020-10-28	2021-01-08	上海市地质勘查技术研究院	一种方便钢管取出的岩土工程用弯管机
CN112191714B (zh) *	2020-10-28	2022-08-30	上海市地质勘查技术研究院	一种方便钢管取出的岩土工程用弯管机
CN113231505A (zh) *	2021-04-28	2021-08-10	嘉兴市双圆机械制造股份有限公司	一种高效的自动弯管机
CN113231505B (zh) *	2021-04-28	2023-01-24	嘉兴市双圆机械制造股份有限公司	一种高效的自动弯管机

Also Published As

Publication number	Publication date
ES2781593T3 (es)	2020-09-03
EP2995393B1 (fr)	2020-01-01

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