CN202239116U - Arc-rolling tool for angle steel and channel steel - Google Patents
Arc-rolling tool for angle steel and channel steel Download PDFInfo
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- CN202239116U CN202239116U CN2011203694891U CN201120369489U CN202239116U CN 202239116 U CN202239116 U CN 202239116U CN 2011203694891 U CN2011203694891 U CN 2011203694891U CN 201120369489 U CN201120369489 U CN 201120369489U CN 202239116 U CN202239116 U CN 202239116U
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- angle steel
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- hexagon socket
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 142
- 239000010959 steel Substances 0.000 title claims abstract description 142
- 238000005096 rolling process Methods 0.000 title abstract description 23
- 238000010276 construction Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 230000000712 assembly Effects 0.000 description 7
- 238000000429 assembly Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- HCOLPNRPCMFHOH-UHFFFAOYSA-N Prodigiosin Natural products CCCCCC1C=C(C=C/2N=C(C=C2OC)c3ccc[nH]3)N=C1C HCOLPNRPCMFHOH-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- TWFGRJUTAULJPZ-USZBIXTISA-N prodigiosin Chemical compound N1=C(C)C(CCCCC)=C\C1=C/C1=NC(C=2[N]C=CC=2)=C[C]1OC TWFGRJUTAULJPZ-USZBIXTISA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to an arc-rolling tool for angle steel and channel steel, comprising a first assembly and a second assembly, wherein the first assembly comprises two semi-circle cylinders which are oppositely arranged to form a whole circle, sleeved and fixed on a lower roller or an upper roller of a plate roller; upper and lower ends of the two semi-circle cylinders are fixedly connected by utilizing one or two hexagon socket screws respectively; the second assembly is of a same structure as the first assembly; the second assembly and the first assembly are paratactic and spaced for a gap distance; the gap distance is used for the insertion of the to-be-processed angle steel or channel steel and adjusted according to the actual thickness of the to-be-processed angle steel or channel steel; and during the arc rolling, according to the different directions of the angle steel or channel steel, the tool is fixed on the upper roller or an lower roller of the conventional plate roller to ensure that the angle steel and the channel steel with different sizes can be rolled to take required shapes of round or arc. By means of the tool, the angle steel and the channel steel can be rolled and formed with no need for a roller machine, therefore, the cost is reduced and the work period is shortened.
Description
Technical field
The utility model relates to field of machining, is specifically related to angle steel, channel-section steel rolls arc, the round as a ball specific purpose tool of using.
Background technology
The machinery three that prior art has rolling plate to use rolls plate roller, roll under having on the plate roller two, on roll one, mainly be to be rolled into bobbin to steel plate.
Aspect machining, simmer into different circles or arc to angle steel, channel-section steel, prior art mainly contains following three kinds of modes: 1 welding, weld conglobate angle steel to the two boards bar; 2 cold stewing or fire bendings promptly directly are simmered into shape to angle steel on frock; 3 usefulness special uses are rolled a rolling and are formed.Above-mentioned three kinds of mode complex process, consuming time longer, cost is higher, can not satisfy the actual needs that angle steel or channel-section steel with various different sizes are processed into multiple radian flexibly.
The utility model content
Based on the existing in prior technology problem, the utility model proposes a kind of angle steel, channel-section steel rolls the arc specific purpose tool, and this specific purpose tool comprises the 1st assembly and the 2nd assembly.
The 1st assembly is made up of two semicircular ring tubes; Two semicircular ring tubes of the 1st assembly are put relatively be combined into a full circle; Suit is fixed on plate roller following roll or on roll, the two ends up and down of two semicircular ring tubes of the 1st assembly respectively with one perhaps two hexagon socket head cap screws be fixedly connected.
Wherein, the two ends up and down of each semicircular cylinder of the 1st assembly have two parallel and radially run through screwed holes respectively.
Wherein, The structure of each screwed hole is: the structure of two that part of parallel screwed holes in the right semi-circle tube is identical; That is: all be the uniformly thin tubular of a diameter, screw thread is arranged on the barrel, the diameter of thread that screw thread one end is arranged of its diameter and hexagon socket head cap screw matches.
The structure in two that part of concentric holes in the left semicircle tube is identical; That is: two sections tubulars that diameter is different that connect together about all being; The tubular diameter that the left side is one section is big slightly; And the diameter than no screw thread one end of hexagon socket head cap screw is big 2 millimeters, does not have screw thread on the tubular inwall that this left side is a section; The tubular diameter that the right side is one section is slightly little, but bigger 2 millimeters than the diameter of thread that screw thread one end is arranged of hexagon socket head cap screw, does not also have screw thread on the tubular inwall that this right side is a section, and the length on one section on this right side is about 1/3 of hexagon socket head cap screw total length.
With a hexagon socket head cap screw; Insert in the hole in the left semicircle tube; After the right-hand member of this hexagon socket head cap screw is inserted out the left semicircle tube, then insert the left end of the screwed hole of right semi-circle tube, begin to screw in the screwed hole in the right semi-circle tube; Be stuck in the left side major diameter destination county partly in the left semicircle tube until the left end nut bottom of this hexagon socket head cap screw, so that each semicircular cylinder of the 1st assembly is fixedly connected.Threaded portion screws in the screwed hole of right semi-circle tube fully, so that each semicircular cylinder of the 1st assembly is fixedly connected.
The 2nd assembly is identical with the 1st modular construction; The 2nd assembly and the 1st assembly are arranged side by side, and leave at a distance of an intersegmental stand-off distance, and this clearance distance is to be used to insert angle steel to be processed or channel-section steel, and adjust according to the actual (real) thickness of angle steel to be processed or channel-section steel.
Wherein, the 1st assembly comprises: the 1st assembly right semi-circle tube (111); The 1st assembly left semicircle tube (112); The 1st assembly the 1st hexagon socket head cap screw (121); The 1st assembly the 2nd hexagon socket head cap screw (122); The 1st assembly the 3rd hexagon socket head cap screw (123); The 1st assembly the 4th hexagon socket head cap screw (124); The 1st screwed hole (131) of the 1st assembly right semi-circle tube; The 2nd screwed hole (132) of the 1st assembly right semi-circle tube; The 3rd screwed hole (133) of the 1st assembly right semi-circle tube; The 4th screwed hole (134) of the 1st assembly right semi-circle tube; The 1st screwed hole (135) of the 1st assembly left semicircle tube; The 2nd screwed hole (136) of the 1st assembly left semicircle tube; The 3rd screwed hole (137) of the 1st assembly left semicircle tube; The 4th screwed hole (138) of the 1st assembly left semicircle tube.
The 2nd assembly comprises: the 2nd assembly right semi-circle tube (211); The 2nd assembly left semicircle tube (212); The 2nd assembly the 1st hexagon socket head cap screw (221); The 2nd assembly the 2nd hexagon socket head cap screw (222); The 2nd assembly the 3rd hexagon socket head cap screw (223); The 2nd assembly the 4th hexagon socket head cap screw (224); The 1st screwed hole (231) of the 2nd assembly right semi-circle tube; The 2nd screwed hole (232) of the 2nd assembly right semi-circle tube; The 3rd screwed hole (233) of the 2nd assembly right semi-circle tube; The 4th screwed hole (234) of the 2nd assembly right semi-circle tube; The 1st screwed hole (235) of the 2nd assembly left semicircle tube; The 2nd screwed hole (236) of the 2nd assembly left semicircle tube; The 3rd screwed hole (237) of the 2nd assembly left semicircle tube; The 4th screwed hole (238) of the 2nd assembly left semicircle tube.
A kind of angle steel of the utility model, channel-section steel roll the arc specific purpose tool and have simple in structurely, use flexibly, can be rolled into desired circle or arc to the angle steel of different size, channel-section steel, meet the needs of production; Not only reduce cost, also can produce and the special-purpose product of the equipment equal in quality of angle steel, channel-section steel that rolls.This special tool prodigiosin is significantly simplified angle steel, channel-section steel processing technology, saves man-hour, processing cost.The specific purpose tool of the utility model can special use roll bed, and angle steel and channel-section steel can be shaped in rolling, and reduce cost greatly, shorten the construction period.
This tool making need not special use roll bed after accomplishing, and angle steel and channel-section steel can be shaped in rolling; The angle steel specification less than 125 mm, channel-section steel specification smaller or equal to ［ 14 all can be shaped in rollings; The angle steel moulding minimum diameter 400mm of ∠ 25, and can reduce cost greatly, like cooperation processing; Single processing charges are so that ［ 14 diameters 1500 are that example is about 700 yuan, and 150 yuan of the processing charges of controlling oneself are enough; Shortened the duration in addition, own processing can be carried out as required at any time.
Description of drawings
Fig. 1 is that angle steel, channel-section steel roll arc specific purpose tool front view.
Fig. 2 is that angle steel, channel-section steel roll arc specific purpose tool rearview.
Fig. 3 is that angle steel, channel-section steel roll arc specific purpose tool right view.
Fig. 4 is that angle steel, channel-section steel roll arc specific purpose tool left view.
Fig. 5 is that angle steel, channel-section steel roll arc specific purpose tool working state figure (that is: angle steel, channel-section steel roll the arc direction and be back of the body when curved, only need to roll under two of plate roller three to roll " angle steel, channel-section steel roll the arc specific purpose tool " that the utility model is installed respectively).
Fig. 6 is that angle steel, channel-section steel roll arc specific purpose tool scheme of installation (that is: angle steel, channel-section steel roll the arc direction and be back of the body when curved, only need to roll under two of plate roller three to roll " angle steel, channel-section steel roll the arc specific purpose tool " that the utility model is installed respectively).
Fig. 7 is that angle steel, channel-section steel roll arc specific purpose tool scheme of installation (that is: angle steel, channel-section steel roll the arc direction and be back of the body when curved, only need to roll under two of plate roller three to roll " angle steel, channel-section steel roll the arc specific purpose tool " that the utility model is installed respectively).
Fig. 8 is that angle steel, channel-section steel roll arc specific purpose tool working state figure (that is: to roll the arc direction be face when curved for angle steel, channel-section steel, needs to roll on of plate roller three to roll " angle steel, channel-section steel roll the arc specific purpose tool " that the utility model is installed).
Fig. 9 is a hexagon socket head cap screw structure enlarged drawing.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Referring to Fig. 1-4; A kind of angle steel, channel-section steel that the utility model provides roll the arc specific purpose tool; This specific purpose tool utilizes existing plate roller; Roll the angle steel of arc or the difference of channel-section steel direction (face rolls and the back of the body rolls) as required, roll on the plate roller or under roll, install and fix two identical assemblies of the specific purpose tool of the utility model respectively.
Wherein, The 1st assembly is made up of two semicircular ring tubes; Two semicircular ring tubes of the 1st assembly are put relatively be combined into a full circle; Suit is fixed on following the rolling (rolling perhaps) of plate roller, and the two ends up and down of two semicircular ring tubes of the 1st assembly are fixedly connected with one or two hexagon socket head cap screws respectively.
Wherein, the two ends up and down of each semicircular cylinder of the 1st assembly have two parallel and radially run through screwed holes respectively.
Wherein, The structure of each screwed hole is: the structure of two that part of parallel screwed holes in the right semi-circle tube is identical; That is: all be the uniformly thin tubular of a diameter, screw thread is arranged on the barrel, the diameter of thread that screw thread one end is arranged of its diameter and hexagon socket head cap screw matches.
The structure in two that part of concentric holes in the left semicircle tube is identical; That is: two sections tubulars that diameter is different that connect together about all being; The tubular diameter that the left side is one section is big slightly; And the diameter than no screw thread one end of hexagon socket head cap screw is big 2 millimeters, does not have screw thread on the tubular inwall that this left side is a section; The tubular diameter that the right side is one section is slightly little, but bigger 2 millimeters than the diameter of thread that screw thread one end is arranged of hexagon socket head cap screw, does not also have screw thread on the tubular inwall that this right side is a section, and the length on one section on this right side is about 1/3 of hexagon socket head cap screw total length.
With a hexagon socket head cap screw; Insert in the hole in the left semicircle tube; After the right-hand member of this hexagon socket head cap screw is inserted out the left semicircle tube, then insert the left end of the screwed hole of right semi-circle tube, begin to screw in the screwed hole in the right semi-circle tube; Be stuck in the left side major diameter destination county partly in the left semicircle tube until the left end nut bottom of this hexagon socket head cap screw, so that each semicircular cylinder of the 1st assembly is fixedly connected.Threaded portion screws in the screwed hole of right semi-circle tube fully, so that each semicircular cylinder of the 1st assembly is fixedly connected.
Wherein, The 2nd assembly is identical with the 1st modular construction; Two semicircular ring tubes of the 2nd assembly also are to put relatively to be combined into a full circle; Suit is fixed on following the rolling (rolling perhaps) of plate roller, and the two ends up and down of two semicircular ring tubes of the 2nd assembly are fixedly connected with one or two hexagon socket head cap screws respectively.
The 2nd assembly and the 1st assembly are arranged side by side, and leave at a distance of an intersegmental stand-off distance, and this clearance distance is to be used to insert angle steel to be processed or channel-section steel, therefore need be according to the clearance distance between two assemblies of actual (real) thickness adjustment of angle steel to be processed or channel-section steel.
The concrete structure of the 1st assembly and the 2nd assembly is following.
1---the 1st assembly; 111---the 1st assembly right semi-circle tube; 112---the 1st assembly left semicircle tube; 121---the 1st assembly the 1st hexagon socket head cap screw; 122---the 1st assembly the 2nd hexagon socket head cap screw; 123---the 1st assembly the 3rd hexagon socket head cap screw; 124---the 1st assembly the 4th hexagon socket head cap screw; 131---the 1st screwed hole of the 1st assembly right semi-circle tube; 132---the 2nd screwed hole of the 1st assembly right semi-circle tube; 133---the 3rd screwed hole of the 1st assembly right semi-circle tube; 134---the 4th screwed hole of the 1st assembly right semi-circle tube; 135---the 1st screwed hole of the 1st assembly left semicircle tube; 136---the 2nd screwed hole of the 1st assembly left semicircle tube; 137---the 3rd screwed hole of the 1st assembly left semicircle tube; 138---the 4th screwed hole of the 1st assembly left semicircle tube.
2---the 2nd assembly; 211---the 2nd assembly right semi-circle tube; 212---the 2nd assembly left semicircle tube; 221---the 2nd assembly the 1st hexagon socket head cap screw; 222---the 2nd assembly the 2nd hexagon socket head cap screw; 223---the 2nd assembly the 3rd hexagon socket head cap screw; 224---the 2nd assembly the 4th hexagon socket head cap screw; 231---the 1st screwed hole of the 2nd assembly right semi-circle tube; 232---the 2nd screwed hole of the 2nd assembly right semi-circle tube; 233---the 3rd screwed hole of the 2nd assembly right semi-circle tube; 234---the 4th screwed hole of the 2nd assembly right semi-circle tube; 235---the 1st screwed hole of the 2nd assembly left semicircle tube; 236---the 2nd screwed hole of the 2nd assembly left semicircle tube; 237---the 3rd screwed hole of the 2nd assembly left semicircle tube; 238---the 4th screwed hole of the 2nd assembly left semicircle tube.
3---three roll plate roller the bottom right roll.
4---three roll under the left side of plate roller and roll.
5---three roll plate roller on roll.
6---just at processed " angle steel ".
7---the screw thread on the hexagon socket head cap screw.
The angle steel channel-section steel rolls the arc specific purpose tool, the complete structure of complete " the angle steel channel-section steel rolls a arc specific purpose tool " product; Should comprise two identical assemblies at least, 1 assembly is made up of two semicircular cylinders, connects with four hexagon socket head cap screws, and what 1 assembly can not be accomplished angle steel or channel-section steel rolls the arc processing tasks.
A complete product is made up of two assemblies, needs 8 hexagon socket head cap screws, each assembly to need 4 hexagon socket head cap screws (each 2 of top and bottom) altogether, and totally two assemblies are formed a product.Each product does not have nut with 8 hexagon socket head cap screws in this product, because the hole in each semicircular cylinder is threaded.
After specific purpose tool is installed on the plate roller, be placed on angle steel or channel-section steel in the gap of specific purpose tool, the operation plate roller, pressurization and rolling are rolled to drive angle steel, make angle steel arc occur, roll back and forth, and constantly pressurize, and obtain desired arc.
Hexagon socket head cap screw sinks in the semicircular cylinder, can not exceed the outer surface of semicircular cylinder.Hexagon socket head cap screw is seen accompanying drawing 9.
Among Fig. 8, when angle steel or channel-section steel face are bent, only get final product (containing two assemblies), roll and to install down at last 1 product of installation that rolls.
The machinery three that prior art has rolling plate to use rolls plate roller, roll under having on the plate roller two, on roll one, mainly be to be rolled into bobbin to steel plate.When rolling angle steel and channel-section steel, on roller, add specific purpose tool, can be rolled into arc or circle to angle steel or channel-section steel.This specific purpose tool mainly contains two assemblies and forms; Each assembly by two semicircular ring tubes relatively put through the hexagon socket head cap screw suit be fixed on roll trigger on roll or roll down (when rolling arc according to the difference of angle steel or channel-section steel direction be fixed on specific purpose tool roll or under roll), carry out rolling.
1. according to the difference of angle steel, channel-section steel rolling direction (face is curved or the back of the body is curved), at the top roll (the rolling direction is that face is curved) or lower roll (the rolling direction is curved for the back of the body) erecting tools of mechanical three rollers.
2. be example to carry on the back curved, only need during rolling rolling the specific purpose tool that the utility model is installed respectively under two that this instrument is made up of two semicircular ring tubes, is fixed by bolts to (as shown in the figure) on the roller to the semicircular ring tube.
3. insert one side of angle steel in the gap of two cylinders during rolling, another side is close on the cylindrical of specific purpose tool cylinder, and the operation plate roller can roll out the arc of different-diameter.
4. if channel-section steel then needs three groups of specific purpose tools are installed respectively on two lower rolls, principle is the same.
5. then need on top roll, install specific purpose tool additional if face is curved, installation method and operation are curved with the back of the body.
Fig. 5 is that angle steel, channel-section steel roll arc specific purpose tool working state figure, that is: angle steel, channel-section steel roll the arc direction and be back of the body when curved, only needs to roll under two of plate roller three to roll " angle steel, channel-section steel roll the arc specific purpose tool " that the utility model is installed respectively.
Fig. 6 is that angle steel, channel-section steel roll arc specific purpose tool scheme of installation, that is: angle steel, channel-section steel roll the arc direction and be back of the body when curved, only needs to roll under two of plate roller three to roll " angle steel, channel-section steel roll the arc specific purpose tool " that the utility model is installed respectively.
Fig. 7 is that angle steel, channel-section steel roll arc specific purpose tool scheme of installation, that is: angle steel, channel-section steel roll the arc direction and be back of the body when curved, only needs to roll under two of plate roller three to roll " angle steel, channel-section steel roll the arc specific purpose tool " that the utility model is installed respectively.
Fig. 8 is that angle steel, channel-section steel roll arc specific purpose tool working state figure, that is: to roll the arc direction be face when curved for angle steel, channel-section steel, needs to roll on of plate roller three to roll " angle steel, channel-section steel roll the arc specific purpose tool " that the utility model is installed.
Fig. 9 is a hexagon socket head cap screw structure enlarged drawing.
The above only is a preferred embodiments of the present invention, and the interest field that the present invention advocated is not limited thereto.The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those skilled in the art work as can make various corresponding changes and distortion according to the present invention, but these changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (2)
1. an angle steel, channel-section steel roll the arc specific purpose tool, it is characterized in that: this specific purpose tool comprises the 1st assembly and the 2nd assembly;
The 1st assembly is made up of two semicircular ring tubes; Two semicircular ring tubes of the 1st assembly are put relatively be combined into a full circle; Suit is fixed on plate roller following roll or on roll, the two ends up and down of two semicircular ring tubes of the 1st assembly respectively with one perhaps two hexagon socket head cap screws be fixedly connected; The 2nd assembly is identical with the 1st modular construction; The 2nd assembly and the 1st assembly are arranged side by side, and leave at a distance of an intersegmental stand-off distance, and this clearance distance is to be used to insert angle steel to be processed or channel-section steel, and adjust according to the actual (real) thickness of angle steel to be processed or channel-section steel;
Wherein the 1st assembly comprises: the 1st assembly right semi-circle tube (111); The 1st assembly left semicircle tube (112); The 1st assembly the 1st hexagon socket head cap screw (121); The 1st assembly the 2nd hexagon socket head cap screw (122); The 1st assembly the 3rd hexagon socket head cap screw (123); The 1st assembly the 4th hexagon socket head cap screw (124); The 1st screwed hole (131) of the 1st assembly right semi-circle tube; The 2nd screwed hole (132) of the 1st assembly right semi-circle tube; The 3rd screwed hole (133) of the 1st assembly right semi-circle tube; The 4th screwed hole (134) of the 1st assembly right semi-circle tube; The 1st screwed hole (135) of the 1st assembly left semicircle tube; The 2nd screwed hole (136) of the 1st assembly left semicircle tube; The 3rd screwed hole (137) of the 1st assembly left semicircle tube; The 4th screwed hole (138) of the 1st assembly left semicircle tube;
The 2nd assembly comprises: the 2nd assembly right semi-circle tube (211); The 2nd assembly left semicircle tube (212); The 2nd assembly the 1st hexagon socket head cap screw (221); The 2nd assembly the 2nd hexagon socket head cap screw (222); The 2nd assembly the 3rd hexagon socket head cap screw (223); The 2nd assembly the 4th hexagon socket head cap screw (224); The 1st screwed hole (231) of the 2nd assembly right semi-circle tube; The 2nd screwed hole (232) of the 2nd assembly right semi-circle tube; The 3rd screwed hole (233) of the 2nd assembly right semi-circle tube; The 4th screwed hole (234) of the 2nd assembly right semi-circle tube; The 1st screwed hole (235) of the 2nd assembly left semicircle tube; The 2nd screwed hole (236) of the 2nd assembly left semicircle tube; The 3rd screwed hole (237) of the 2nd assembly left semicircle tube; The 4th screwed hole (238) of the 2nd assembly left semicircle tube.
2. angle steel according to claim 1, channel-section steel roll the arc specific purpose tool, and wherein, the two ends up and down of each semicircular cylinder of the 1st assembly have two parallel and radially run through screwed holes respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203694891U CN202239116U (en) | 2011-09-30 | 2011-09-30 | Arc-rolling tool for angle steel and channel steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203694891U CN202239116U (en) | 2011-09-30 | 2011-09-30 | Arc-rolling tool for angle steel and channel steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202239116U true CN202239116U (en) | 2012-05-30 |
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ID=46100419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203694891U Expired - Lifetime CN202239116U (en) | 2011-09-30 | 2011-09-30 | Arc-rolling tool for angle steel and channel steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202239116U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190764A (en) * | 2014-07-28 | 2014-12-10 | 济南重工股份有限公司 | Quick bending device for steel angles |
-
2011
- 2011-09-30 CN CN2011203694891U patent/CN202239116U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190764A (en) * | 2014-07-28 | 2014-12-10 | 济南重工股份有限公司 | Quick bending device for steel angles |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |