CA2029414A1 - Rod-bender plant with device for setting the size of rods - Google Patents
Rod-bender plant with device for setting the size of rodsInfo
- Publication number
- CA2029414A1 CA2029414A1 CA002029414A CA2029414A CA2029414A1 CA 2029414 A1 CA2029414 A1 CA 2029414A1 CA 002029414 A CA002029414 A CA 002029414A CA 2029414 A CA2029414 A CA 2029414A CA 2029414 A1 CA2029414 A1 CA 2029414A1
- Authority
- CA
- Canada
- Prior art keywords
- bending
- rods
- plant
- rod
- unit
- Prior art date
- 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.)
- Abandoned
Links
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
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/022—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment over a stationary forming member only
-
- 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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
- B21D11/12—Bending specially adapted to produce specific articles, e.g. leaf springs the articles being reinforcements for concrete
-
- 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
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
Abstract
ABSTRACT
Rod-bender plant with a device (21) for setting the size of the rods, which comprises a first bending unit (11) and a second bending unit (11) able to be positioned in relation to each other, a unit (19) to clamp rods being located in an intermediate position, each of the bending units (11) including a substantially, but hot necessarily, horizontal work platform (13), which plant can bend one or more rods at the same time so as to obtain shaped and bent rods for building work, means for the initial positioning of the rods to be bent being included in a position to contact the bending axis (23) of the rod and in cooperation with the work platform (13) of one bending unit (11), the initial positioning means being embodied with a device (21) to set the size of the rod, the device (21) being in a stationary and constant position in relation to the relative bending unit (11).
Rod-bender plant with a device (21) for setting the size of the rods, which comprises a first bending unit (11) and a second bending unit (11) able to be positioned in relation to each other, a unit (19) to clamp rods being located in an intermediate position, each of the bending units (11) including a substantially, but hot necessarily, horizontal work platform (13), which plant can bend one or more rods at the same time so as to obtain shaped and bent rods for building work, means for the initial positioning of the rods to be bent being included in a position to contact the bending axis (23) of the rod and in cooperation with the work platform (13) of one bending unit (11), the initial positioning means being embodied with a device (21) to set the size of the rod, the device (21) being in a stationary and constant position in relation to the relative bending unit (11).
Description
2~294~
"ROD-BENDER PIANT WITH DEVICE FOR SETTING T~E SIZE OF
2 RODS"
"ROD-BENDER PIANT WITH DEVICE FOR SETTING T~E SIZE OF
2 RODS"
3* * * * * * *
4This invention concerns a rod-bender plant with a device for initial setting of the size of the rods, the device 6 being of the type described in the pre-characterizing part 7 of the main claim.
8 To be more exact, the invention concerns a rod-bender 9 plant or double bending machine for rods for building work, together with a device for the initial setting of the size 11 of the rods to be bent and shaped.
12 This double bending machine comprises two bending units 13 having substantially horizontal work platforms.
14 The work platforms normally include a bending assembly supporting a shaping roll and a planetary roll.
16 Moreover, the double bending machine comprises guides for 17 reciprocal positioning, at least control and traversing 18 means and at least one motor; means to clamp the rods are 19 included advantageously between the two bending units.
Such double bending machine is served advantageously by a 21 bench for storage and delivery of rods to be bent; this 22 bench arranges for the proper handling of the rods.
23 Machines for the bending of round rods or shaped rods to 24 obtain metallic reinforcement rods for building work are known.
26 These machines comprise a bending device with a 27 horizontal, rotary, powered disk equipped with a central 28 contrast shaping roll, an eccentric, planetary bending roll 29 and a stationary abutment element; the machine also includes first and second bending units which can be positioned along 31 a runaway in relation to each other and to the intermediate 32 rod-clamping unit.
33 The bending units include powered means able to displace 1 one or both bendlng units and the lntermediate unit which 2 clamps the rod or rods to be bent at their ends.
3 Machines of this type are also known which have a 4 central data-processing and control unit associated with the powered means and able to coordinate the movement of one or 6 both bending units and the rotation o the bending 7 assemblies according to a pre-set programme of bendlng the 8 rods.
9 One problem to be tackled in these machines, whether they are of the type with intermediate clamping means or not, is 11 the correct positioning of the rods at the beginning of the 12 bending cycle.
13 At the present time this positioning is carried out by 14 approximation and the results are not constant, even though they may be a few millimetres too long or too short.
16 DE-A-3301061 is known and provides a stationary abutment 17 with a positioner element able to move thereon. The 18 stationary abutment is anchored to the ground and is 19 independent of both bending units; this means that the movable positioner element has to be re-positioned whenever 21 the bending unit is displaced. Besides the problem of the 22 continual re-positioning, this embodiment entails also the 23 drawback of contact between the stationary abutment or 24 support and the corresponding bending unit and also involves the shortcoming of limitation of extension of the stationary 26 support owing to problems of overall size or of interference 27 or of stability of measurement.
28 The present applicant has considered this problem and has 29 brought about this invention so as to be able to have a constant, fixed, initial positioning whatever reciprocal or 31 relative position the two bending units may take up.
32 This constant, fixed, initial positioning or setting the 33 size or length is carried out by control and actuation means 20294~4 1 for any position of the bending units and, if necessary, of 2 the intermediate clamping unit too when the latter can be 3 moved.
4 The rod-bender plant with a device for setting the size of the rods, which comprises first and second units for the 6 double bending of rods for building purposes according to 7 the invention, is set forth and characterized in the main 8 claim, while the dependent claims describe variants of the 9 idea of the embodiment.
A first advantage of the invention is that it enables the 11 setting of the size of the rods to be bent, namely the 12 setting of the position of the beginning of the cycle, to be 13 always carried out identically and speedily.
14 A further advantage is that the device for setting the size can be removed momentarily so as to have the bending 16 platforms free of interference.
17 According to the invention the device for setting the size 18 can be located at the side of the bending platform of one 19 bending unit.
According to a variant the device for setting the size is 21 located on the bending platform of one bending unit, 22 advantageously on the outside of the bending assembly.
23 In any event, according to the invention the device for 24 setting the size is located at a stationary constant position in relation to the bending assembly of the bending 26 unit with which it cooperates.
27 According to the invention the device for setting the size 28 is a vertically movable blade able to take up a first 29 working position and a second retracted position. This blade is positioned with its surface against which the 31 leading end of the rod abuts, at a right angle to the axis 32 of the rod and to the bending or work platform.
33 When in its first working position for setting the size or 2029~14 _ 9 _ 1 length of the rod, this blade is positioned so as to 2 intersect the bending axis passing through the two bending 3 units.
4 According to a variant the device for setting the size is a plate located on the end of a lever.
6 The attached figure, which is given as a non-restrictive 7 example, shows a three-dimensional diagram of a bending 8 machine with two bending units and with an intermediate rod-9 clamping unit, equipped according to the invention.
In the figure a bending machine 10 comprises two bending 11 units 11, which can be moved in guides 12 by actuation and 12 traversing means, which are not shown here, or else only one 13 bending unit can be moved.
14 In the example shown each bending unit 11 comprises a substantially horizontal work platform 13.
16 A bending assembly 14 is located on the work platform 13 17 and in this example is a bending disk, but could be a rotary 18 crank, and bears a planetary roll 15.
19 A shaping roll 16, or contrast cam having the same purposes, is included on the axis of the bending disk or on 21 the axis of rotation of the crank.
22 The bending axis runs at a tangent to the two shaping 23 rolls 16 or on the axis of the contrast cam.
24 Bending is carried out by clockwise or anticlockwise rotation, according to requirements, of the planetary roll 26 15 about the shaping roll 16.
27 Delivery arms 17 are included in this instance in 28 momentary cooperation with the upper part of the work 29 platform 13 and take a rod or bundle of rods to be bent from a storage and delivery bench 18.
31 In their position to deliver rods to be bent the delivery 32 arms 17 are positioned above the work platform 13 and in 33 their terminal delivery position cooperate with the position 1 for insertion of rods to be bent ln a clamping unit 19, that 2 is, with the bending axis 23.
3 The bending units 11 can move in a coordinated manner, one 4 staying still while the other is moved, or can move independently of each other in a dlfferentiated manner.
4This invention concerns a rod-bender plant with a device for initial setting of the size of the rods, the device 6 being of the type described in the pre-characterizing part 7 of the main claim.
8 To be more exact, the invention concerns a rod-bender 9 plant or double bending machine for rods for building work, together with a device for the initial setting of the size 11 of the rods to be bent and shaped.
12 This double bending machine comprises two bending units 13 having substantially horizontal work platforms.
14 The work platforms normally include a bending assembly supporting a shaping roll and a planetary roll.
16 Moreover, the double bending machine comprises guides for 17 reciprocal positioning, at least control and traversing 18 means and at least one motor; means to clamp the rods are 19 included advantageously between the two bending units.
Such double bending machine is served advantageously by a 21 bench for storage and delivery of rods to be bent; this 22 bench arranges for the proper handling of the rods.
23 Machines for the bending of round rods or shaped rods to 24 obtain metallic reinforcement rods for building work are known.
26 These machines comprise a bending device with a 27 horizontal, rotary, powered disk equipped with a central 28 contrast shaping roll, an eccentric, planetary bending roll 29 and a stationary abutment element; the machine also includes first and second bending units which can be positioned along 31 a runaway in relation to each other and to the intermediate 32 rod-clamping unit.
33 The bending units include powered means able to displace 1 one or both bendlng units and the lntermediate unit which 2 clamps the rod or rods to be bent at their ends.
3 Machines of this type are also known which have a 4 central data-processing and control unit associated with the powered means and able to coordinate the movement of one or 6 both bending units and the rotation o the bending 7 assemblies according to a pre-set programme of bendlng the 8 rods.
9 One problem to be tackled in these machines, whether they are of the type with intermediate clamping means or not, is 11 the correct positioning of the rods at the beginning of the 12 bending cycle.
13 At the present time this positioning is carried out by 14 approximation and the results are not constant, even though they may be a few millimetres too long or too short.
16 DE-A-3301061 is known and provides a stationary abutment 17 with a positioner element able to move thereon. The 18 stationary abutment is anchored to the ground and is 19 independent of both bending units; this means that the movable positioner element has to be re-positioned whenever 21 the bending unit is displaced. Besides the problem of the 22 continual re-positioning, this embodiment entails also the 23 drawback of contact between the stationary abutment or 24 support and the corresponding bending unit and also involves the shortcoming of limitation of extension of the stationary 26 support owing to problems of overall size or of interference 27 or of stability of measurement.
28 The present applicant has considered this problem and has 29 brought about this invention so as to be able to have a constant, fixed, initial positioning whatever reciprocal or 31 relative position the two bending units may take up.
32 This constant, fixed, initial positioning or setting the 33 size or length is carried out by control and actuation means 20294~4 1 for any position of the bending units and, if necessary, of 2 the intermediate clamping unit too when the latter can be 3 moved.
4 The rod-bender plant with a device for setting the size of the rods, which comprises first and second units for the 6 double bending of rods for building purposes according to 7 the invention, is set forth and characterized in the main 8 claim, while the dependent claims describe variants of the 9 idea of the embodiment.
A first advantage of the invention is that it enables the 11 setting of the size of the rods to be bent, namely the 12 setting of the position of the beginning of the cycle, to be 13 always carried out identically and speedily.
14 A further advantage is that the device for setting the size can be removed momentarily so as to have the bending 16 platforms free of interference.
17 According to the invention the device for setting the size 18 can be located at the side of the bending platform of one 19 bending unit.
According to a variant the device for setting the size is 21 located on the bending platform of one bending unit, 22 advantageously on the outside of the bending assembly.
23 In any event, according to the invention the device for 24 setting the size is located at a stationary constant position in relation to the bending assembly of the bending 26 unit with which it cooperates.
27 According to the invention the device for setting the size 28 is a vertically movable blade able to take up a first 29 working position and a second retracted position. This blade is positioned with its surface against which the 31 leading end of the rod abuts, at a right angle to the axis 32 of the rod and to the bending or work platform.
33 When in its first working position for setting the size or 2029~14 _ 9 _ 1 length of the rod, this blade is positioned so as to 2 intersect the bending axis passing through the two bending 3 units.
4 According to a variant the device for setting the size is a plate located on the end of a lever.
6 The attached figure, which is given as a non-restrictive 7 example, shows a three-dimensional diagram of a bending 8 machine with two bending units and with an intermediate rod-9 clamping unit, equipped according to the invention.
In the figure a bending machine 10 comprises two bending 11 units 11, which can be moved in guides 12 by actuation and 12 traversing means, which are not shown here, or else only one 13 bending unit can be moved.
14 In the example shown each bending unit 11 comprises a substantially horizontal work platform 13.
16 A bending assembly 14 is located on the work platform 13 17 and in this example is a bending disk, but could be a rotary 18 crank, and bears a planetary roll 15.
19 A shaping roll 16, or contrast cam having the same purposes, is included on the axis of the bending disk or on 21 the axis of rotation of the crank.
22 The bending axis runs at a tangent to the two shaping 23 rolls 16 or on the axis of the contrast cam.
24 Bending is carried out by clockwise or anticlockwise rotation, according to requirements, of the planetary roll 26 15 about the shaping roll 16.
27 Delivery arms 17 are included in this instance in 28 momentary cooperation with the upper part of the work 29 platform 13 and take a rod or bundle of rods to be bent from a storage and delivery bench 18.
31 In their position to deliver rods to be bent the delivery 32 arms 17 are positioned above the work platform 13 and in 33 their terminal delivery position cooperate with the position 1 for insertion of rods to be bent ln a clamping unit 19, that 2 is, with the bending axis 23.
3 The bending units 11 can move in a coordinated manner, one 4 staying still while the other is moved, or can move independently of each other in a dlfferentiated manner.
6 The clamping unit 19 is positioned between the bending 7 units 11 and according to the invention can be stationary or 8 can move along the guides 12.
9 If the clamping unit 19 can move, its movement is coordinated with the requirements of the bending cycle and 11 with the value of the setting of the size of the rods, that 12 is to say, with the first common and constant positioning of 13 the setting which forms the starting point of the subsequent 14 automatic movements.
A device 21 for setting the size is included in 16 cooperation with a work platform 13 and is shown in its 17 first working position. It can also take up a second 18 retracted position free of contact with the rods and thus 19 frees the work platform 13 of any interference.
In its first position the device 21 stands with its 21 abutment surface 22 in a position to intersect the bending 22 axis 23 on which the rods lie. The abutment surface 22 is 23 positioned normal to the bending axis 23 and to the work 24 platform 13.
In the example shown suitable guides 24 are comprised and 26 guide the abutment surface 22.
27 The positioning of the device 21 in its first or second 28 position is carried out by a cylinder/piston actuator or 29 jack 25 in this case.
The control and actuation of the system can be achieved 31 with an external control panel or with a control panel 20 32 situated on one bending unit 11.
33 When the rod (or pluralty of rods together) is processed, 2~2~
1 it is positioned ln the clamping unit 19 along the bending 2 axis 23 and is thrust forward until it rests against the 3 abutment surface 22 of the device 21.
4 When the rod is thus positioned, the clamping unit 19 clamps it axially and the abutment surface 22 is then 6 retracted, that is to say, the device 21 takes up its second 7 position and the work platform 13 is freed of interference.
8 The bending cycle can begin in this manner from this 9 stationary starting position.
The device 21 can also be located outside the area between 11 the two bending assemblies 14 or within that area.
A device 21 for setting the size is included in 16 cooperation with a work platform 13 and is shown in its 17 first working position. It can also take up a second 18 retracted position free of contact with the rods and thus 19 frees the work platform 13 of any interference.
In its first position the device 21 stands with its 21 abutment surface 22 in a position to intersect the bending 22 axis 23 on which the rods lie. The abutment surface 22 is 23 positioned normal to the bending axis 23 and to the work 24 platform 13.
In the example shown suitable guides 24 are comprised and 26 guide the abutment surface 22.
27 The positioning of the device 21 in its first or second 28 position is carried out by a cylinder/piston actuator or 29 jack 25 in this case.
The control and actuation of the system can be achieved 31 with an external control panel or with a control panel 20 32 situated on one bending unit 11.
33 When the rod (or pluralty of rods together) is processed, 2~2~
1 it is positioned ln the clamping unit 19 along the bending 2 axis 23 and is thrust forward until it rests against the 3 abutment surface 22 of the device 21.
4 When the rod is thus positioned, the clamping unit 19 clamps it axially and the abutment surface 22 is then 6 retracted, that is to say, the device 21 takes up its second 7 position and the work platform 13 is freed of interference.
8 The bending cycle can begin in this manner from this 9 stationary starting position.
The device 21 can also be located outside the area between 11 the two bending assemblies 14 or within that area.
Claims (7)
1 - Rod-bender plant with a device (21) for setting the size of the rods, which comprises a first bending unit (11) and a second bending unit (11) able to be positioned in relation to each other, a unit (19) to clamp rods being located in an intermediate position, each of the bending units (11) including a substantially, but not necessarily, horizontal work platform (13), which plant can bend one or more rods at the same time so as to obtain shaped and bent rods for building work, the plant being characterized in that means for the initial positioning of the rods to be bent are included in a position to contact the bending axis (23) of the rod and in cooperation with the work platform (13) of one bending unit (11), the initial positioning means being embodied with a device (21) to set the size of the rod, the device (21) being in a stationary and constant position in relation to the relative bending unit (11).
2 - Plant as claimed in Claim 1, in which the setting device (21) has a first working position and a second non-contact position and has an abutment surface (22) substantially normal to the work platform (13) and to the bending axis (25) of the rods.
3 - Plant as claimed in Claim 1 or 2, in which the setting device (21) is located externally to the two bending assemblies (14) but is anchored to the relative assembly (14).
4 - Plant as claimed in Claim 1 or 2, in which the setting device (21) is located in an intermediate position between the two bending assemblies (14).
5 - Plant as claimed in any claim hereinbefore, in which the setting device (21) is located away from the work platforms (13) but is anchored thereto.
6 - Plant as claimed in any of Claims 1 to 4 inclusive, in which the setting device (21) is located on one work platform (13).
7 - Plant as claimed in any claim hereinbefore, in which the clamping unit (19) can be moved along the axis (23) on which the rods are positioned for bending.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT01591189A IT1236119B (en) | 1989-11-09 | 1989-11-09 | IRON BENDING SYSTEM WITH MEASUREMENT DEVICE |
| IT15911A/89 | 1989-11-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2029414A1 true CA2029414A1 (en) | 1991-05-10 |
Family
ID=11148366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002029414A Abandoned CA2029414A1 (en) | 1989-11-09 | 1990-11-06 | Rod-bender plant with device for setting the size of rods |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0427038A1 (en) |
| JP (1) | JPH03165933A (en) |
| CA (1) | CA2029414A1 (en) |
| IT (1) | IT1236119B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUB20153259A1 (en) * | 2015-08-27 | 2017-02-27 | M E P Macch Elettroniche Piegatrici Spa | MACHINE COMBINED TO WORK VERGELLE AND ITS PROCESS OF PROCESSING |
| IT201900001631A1 (en) * | 2019-02-05 | 2020-08-05 | A C M S R L Automatismi Costruzioni Mecc | BAR WORKING MACHINE AND RELATED WORKING METHOD |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2430899A (en) * | 1945-08-02 | 1947-11-18 | Wallace Everett | Pivoted bender with adjustable stops |
| US3580023A (en) * | 1968-12-09 | 1971-05-25 | Bethlehem Steel Corp | Automated stops for bar bending machine |
| IT976700B (en) * | 1973-02-16 | 1974-09-10 | Del Fabro M | COMPLEX BENDING AND OR SHAPING MACHINE FOR METAL BARS EQUIPPED WITH OPERATING UNITS AND MOBILE BENDING UNITS |
| DE3301061A1 (en) * | 1983-01-14 | 1984-04-05 | Daimler-Benz Ag, 7000 Stuttgart | Bending machine |
| US4681210A (en) * | 1984-08-23 | 1987-07-21 | Kabushiki Kaisha Komatsu Seisakusho | Apparatus for feeding bars through a bending or like processing station |
| US4662204A (en) * | 1985-01-17 | 1987-05-05 | Usui Kokusai Sangyo Kabushiki Kaisha | Apparatus for automatically bending metallic tubes |
| FR2602160B1 (en) * | 1986-08-04 | 1990-07-20 | Latour Fils | MODULAR METHOD AND MACHINE FOR BENDING METAL WIRES |
-
1989
- 1989-11-09 IT IT01591189A patent/IT1236119B/en active IP Right Grant
-
1990
- 1990-10-20 EP EP90120191A patent/EP0427038A1/en not_active Withdrawn
- 1990-11-06 CA CA002029414A patent/CA2029414A1/en not_active Abandoned
- 1990-11-08 JP JP2301217A patent/JPH03165933A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03165933A (en) | 1991-07-17 |
| IT1236119B (en) | 1993-01-08 |
| EP0427038A1 (en) | 1991-05-15 |
| IT8915911A1 (en) | 1991-05-09 |
| IT8915911A0 (en) | 1989-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |