CN104308257A - Bar shearing device - Google Patents
Bar shearing device Download PDFInfo
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- CN104308257A CN104308257A CN201410566515.8A CN201410566515A CN104308257A CN 104308257 A CN104308257 A CN 104308257A CN 201410566515 A CN201410566515 A CN 201410566515A CN 104308257 A CN104308257 A CN 104308257A
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- bar
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- shearing
- holder
- push rod
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Abstract
The invention discloses a bar shearing device. The bar shearing device comprises a fixed seat, a pressing mechanism, a shearing mechanism and a supporting mechanism. The pressing mechanism is used for pressing to-be-sheared bars onto the fixed seat, the shearing mechanism is used for shearing the bars, and the supporting mechanism is used for supporting the bars. The pressing mechanism is positioned on a bar feeding port side, the shearing mechanism comprises a shearing arm rotatably arranged on the fixed seat, an upper blade is arranged at one end of the shearing arm, a lower blade matched with the upper blade is arranged on the fixed seat, the supporting mechanism comprises a supporting part, and the supporting part is rotatably arranged on the shearing arm and used for supporting the to-be-sheared bars. During shearing of the bars, the unsheared sides of the bars can be fixedly pressed by the pressing mechanism, and to-be-sheared portions of the bars can be supported by the supporting mechanism, so that higher stability of the bars during shearing is achieved, smoothness in shearing is guaranteed, high flatness of sections at sheared positions is achieved, and materials are well saved.
Description
Technical field
the present invention relates to a kind of shear of bar.
Background technology
the existing shear for shearing bar, in shear history, the shearing of upper and lower cutter can cause larger deformation to the place of cutting off, comparatively waste raw material, meanwhile, bar, can because the gravity of self ruptures from shearing when being sheared certain degree, not only can cause the unsmooth of shearing place, may blade be damaged in addition simultaneously.
Summary of the invention
the object of this invention is to provide a kind of shear of bar, in shear history, being sheared bar can be held by stable compression, makes shearing more convenient, makes to cut off place's deformability less, saves material preferably.
for achieving the above object, the technical solution used in the present invention is:
a kind of shear of bar, for the shearing to bar, described shear comprises holder, for described bar to be sheared being pressed on the hold-down mechanism on described holder, for carrying out the cutting mechanism of shearing to described bar, the feeding port side of described bar is located at by described hold-down mechanism, described cutting mechanism comprises the rotating shear arm be located on described holder, one end of described shear arm is provided with cutter, described holder is provided with the bottom knife coordinated with described cutter for shearing described bar, described cutting mechanism also comprises the first drive unit be located at and realized for driving described shear arm to rotate between described holder and described shear arm shearing, for the material carrying mechanism of bar described in support when described shear is also included in described cutting mechanism shearing, described material carrying mechanism comprises the retainer part be located at for bar described in support on described shear arm of rotation, be located at the second drive unit for driving described retainer part to rotate between described shear arm and described retainer part.
preferably, described shear arm is provided with the first connector, and what described retainer part rotated is connected on described first connector, and described retainer part comprises for one end of bar described in support, the other end be rotatably connected on described second drive unit.
preferably, described first drive unit is the first hydraulic cylinder, described first hydraulic cylinder comprise the first cylinder body be fixed on described holder, can flexible vertically the first push rod of relatively described first cylinder body, the external part of described first push rod is rotatably connected on described shear arm.
preferably, described second drive unit is the second hydraulic cylinder, described second hydraulic cylinder comprise the second cylinder body be fixed on described shear arm, can flexible vertically the second push rod of relatively described second cylinder body, being rotatably connected on described second push rod of described retainer part.
preferably, described bottom knife has the blade face of indent, the bottom in described blade face is arc surface, described bottom knife has front surface and rear surface along on the direction of its thickness, described rear surface is positioned at perpendicular, described front surface formation crossing with described arc surface one section of circular arc line, described front surface is divided into upper surface and lower surface by the tangent line at described circular arc line minimum point place, described upper surface is positioned at perpendicular, described lower surface rotates to described rear surface around described tangent line and forms 1 degree of angle with perpendicular, described bottom knife revolves turnback around described tangent line and is described cutter.
preferably, described hold-down mechanism is located on described holder, described hold-down mechanism comprise fixing be located on described holder for hold described bar compression supporting piece, can slide up and down and be located on described holder and the 3rd drive unit that described bar can be pressed on compression upper cover in described compression supporting piece, drive described compression upper cover to slide up and down.
more preferably, described hold-down mechanism also comprises the compression base be located at guide post on described holder, be fixedly arranged on described guide post lower end of slip, described compression upper cover is fixedly arranged on the upper end of described guide post, described 3rd drive unit is the 3rd hydraulic cylinder, described 3rd hydraulic cylinder comprise the 3rd cylinder body be fixed on described holder, can flexible vertically the 3rd push rod of relatively described 3rd cylinder body, the external part of described 3rd push rod is located on described compression base.
preferably, described shear also comprises is cut the scalling-off detecting mechanism of length for limiting described bar, described scalling-off detecting mechanism and described hold-down mechanism are positioned at the different both sides of described shear arm, described scalling-off detecting mechanism comprises the screw mandrel be located on described shear arm rotated around Pivot Point Center line direction, be located at the nut on described screw mandrel, the length bearing of trend of described screw mandrel is parallel to the length bearing of trend of described bar, what described nut can coordinate moves along the length bearing of trend of described screw mandrel along with described screw mandrel while Pivot Point Center line direction is rotated, described scalling-off detecting mechanism also comprises and being connected on described nut for stopping the retention device that described bar stretches out, be fixedly connected on the rule on described shear arm, the setting that described rule and described screw mandrel are parallel to each other.
more preferably, described retention device is the 4th hydraulic cylinder, described 4th hydraulic cylinder comprise the 4th cylinder body be located on described nut, can the flexible vertically setting for stopping the 4th push rod that described bar stretches out, described 4th push rod and described bar coaxial inner conductor of relatively described 4th cylinder body.
due to the utilization of technique scheme, the present invention compared with prior art has following advantages: the present invention by adopt in the shear of bar bar can be pressed on hold-down mechanism on holder, can by the material carrying mechanism that cutting out section is held for the treatment of of bar, make bar more stable in shear history, ensure that carrying out smoothly of shearing, make the section flatness of cutting off place good, well save material.
Accompanying drawing explanation
accompanying drawing 1 is structural representation of the present invention;
accompanying drawing 2 is material carrying mechanism schematic diagram of the present invention;
accompanying drawing 3 is scalling-off detecting structural scheme of mechanism of the present invention;
accompanying drawing 4 is hold-down mechanism state one schematic diagram;
accompanying drawing 5 is hold-down mechanism state two schematic diagram;
accompanying drawing 6 is cutter schematic diagram;
accompanying drawing 7 is bottom knife schematic diagram.
wherein: 1, cutting mechanism; 11, shear arm; 12, cutter; 13, bottom knife; 14, the first drive unit; 141, the first cylinder body; 142, the first push rod; 2; Material carrying mechanism; 21, retainer part; 22, the second drive unit; 221, the second cylinder body; 222, the second push rod; 23, the first connector; 3, hold-down mechanism; 31, supporting piece is compressed; 32, upper cover is compressed; 33, base is compressed; 34, the 3rd drive unit; 341, the 3rd cylinder body; 342, the 3rd push rod; 35, guide post; 4, scalling-off detecting mechanism; 41, screw mandrel; 42, nut; 43, retention device; 431, the 4th cylinder body; 432, the 4th push rod; 44, rule.
Detailed description of the invention
below in conjunction with accompanying drawing, technical scheme of the present invention is further elaborated.
shown in Fig. 1, Fig. 2, the above-mentioned shear for shearing bar, this shear comprises holder, for bar to be sheared being pressed on hold-down mechanism 3 on this holder, being used for carrying out bar the cutting mechanism 1 of shearing, be used for the material carrying mechanism 2 of support bar when cutting mechanism 1 shearing, hold-down mechanism 3 is positioned at the feeding port side of bar.
this cutting mechanism 1 is located on holder, cutting mechanism 1 comprises the shear arm 11 be located at rotationally in frame, one end of shear arm 11 is provided with cutter 12, frame is provided with the bottom knife 13 matched with cutter 12, bottom knife 13 has the blade face of indent, the bottom in this blade face is arc surface, bottom knife 13 has front surface and rear surface along on the direction of its thickness, rear surface is positioned at perpendicular, front surface formation crossing with arc surface one section of circular arc line, front surface is divided into upper surface and lower surface by the tangent line at circular arc line minimum point place, upper surface is positioned at perpendicular, lower surface is around tangent line surface pivots and form 1 degree of angle with perpendicular backward, bottom knife 13 revolves turnback around this tangent line and is cutter 12.When cutting bar, the face at cutter 12 and bottom knife 13 place is all perpendicular to horizontal plane, cutter 12 and bottom knife 13 in the vertical direction stagger mutually, after staggering, the front surface of cutter 12 and the front surface in the vertical direction of bottom knife 13 are in same plane, by this setting, the chip of generation significantly can be reduced when cutting bar, cost-saving preferably.By making as above optimal design-aside to the structure of cutter 12 and bottom knife 13, the generation of chip significantly can be reduced when cutting bar, cost-saving preferably.
as shown in Figure 1, cutting mechanism 1 also comprises for driving shear arm 11 to rotate the first drive unit 14 realizing shearing, first drive unit 14 is located on holder, first drive unit 14 is the first hydraulic cylinder, first hydraulic cylinder comprises the first cylinder body 141 be fixed on holder, can flexible vertically the first push rod 142 of relative first cylinder body 141, the external part of the first push rod 142 is rotatably connected on described shear arm 11, during shearing, shear arm 11 is driven to rotate around holder by the motion of the first push rod 142, thus cutter 12 pairs of bottom knife 13 have an action rotated, realize the object sheared.
shown in Figure 2, shear also comprises to be located on shear arm 11 for holding the material carrying mechanism 2 of bar, this material carrying mechanism 2 comprises the retainer part 21 of one end for support bar, shear arm 11 is provided with the first connector 23, what retainer part 21 rotated is located on the first connector 23, and material carrying mechanism 2 also comprises the second drive unit 22 be located at for driving retainer part 21 to rotate relative to the first connector 23 between shear arm 11 with retainer part 21.
this retainer drive unit 22 is the second hydraulic cylinder, second hydraulic cylinder comprise the second cylinder body 221 be fixed on shear arm 11, can flexible vertically the second push rod 222 of relative second cylinder body 221, the other end of retainer part 21 is rotatably connected on the external part of the second push rod 222.When bar sheared by needs, second push rod 222 stretches out, retainer part 21 turns to around the pin joint with the first connector 23 position can holding bar, in shear history, this retainer part 21 and shear arm 11 geo-stationary, when sheared blank is complete, the second push rod 222 is retracted, and retainer part 21 turns to around the pin joint with the first connector 23 and leaves the position that it holds bar.By the setting of this material carrying mechanism 2, bar can being prevented when being sheared certain degree, because the gravity of self is from shearing fracture, not only can causes the unsmooth of shearing place, may blade be damaged in addition simultaneously.
see Fig. 4, shown in Fig. 5, shear also comprises the hold-down mechanism 3 for being pressed on by bar on holder, hold-down mechanism 3 is located on holder, hold-down mechanism 3 comprises fixing being located on holder for holding the compression supporting piece 31 of bar, the guide post 35 be located on holder slided up and down, be fixedly arranged on the compression base 33 of guide post 35 lower end, be fixedly arranged on guide post 35 upper end for bar being pressed on the compression upper cover 32 compressed in supporting piece 31, drive the 3rd drive unit 34 compressing base 33 and move up and down, this compression supporting piece 31 can be provided with the semi-circular shape cushion block of different-diameter, come corresponding hold different-diameter wait shear bar.
3rd drive unit 34 is the 3rd hydraulic cylinder, 3rd hydraulic cylinder comprise the 3rd cylinder body 341 be fixed on holder, can flexible vertically the 3rd push rod 342 of relative 3rd cylinder body 341, the external part of the 3rd push rod 342 is located at and is compressed on base 33, compression upper cover 32 can be driven to slide up and down by the motion of the 3rd push rod 342 thus be pressed on by bar compresses in supporting piece 31, certainly, 3rd cylinder body also 341 can be arranged on compression base 33, and the 3rd push rod 342 is arranged on holder simultaneously.
shown in Figure 3, shear also comprises is cut the scalling-off detecting mechanism 4 of length for limiting bar, scalling-off detecting mechanism 4 is positioned at the discharging opening side of bar, scalling-off detecting mechanism 4 comprises the screw mandrel 41 be located on shear arm 11 side rotated around Pivot Point Center line direction, be located at the nut 42 on screw mandrel 41, the length bearing of trend of this screw mandrel 41 is parallel to the length bearing of trend of bar, what this nut 42 can coordinate moves along the length bearing of trend of screw mandrel 41 along with screw mandrel 41 while Pivot Point Center line direction is rotated, this scalling-off detecting mechanism 4 also comprises the retention device 43 be connected on nut 42, be fixedly connected on the rule 44 on shear arm 11, the setting that this rule 44 is parallel to each other with screw mandrel 41, retention device 43 is the 4th hydraulic cylinder, 4th hydraulic cylinder comprises the 4th cylinder body 431 be located on nut 42, can the 4th cylinder body 431 be flexible for stopping the 4th push rod 432 that bar stretches out vertically relatively, the setting of the 4th push rod 432 and bar coaxial inner conductor.
by the setting of the 4th hydraulic cylinder, when shearing bar, bar can because extruding force be pressed on the 4th push rod 432, the bar be sheared could take off by the external force that general needs are larger, here driving the 4th push rod 432 is only needed to retract in the 4th cylinder body 431, the bar be sheared can come off by nature, comparatively laborsaving.
above-mentioned 4th push rod 432 also can be provided with sensor, when driving mechanism drive wait shear the front end of bar conflict the 4th push rod 432 time, make driving mechanism stop action by sensor.Due to the setting that axial line and the axial line of bar, the axial line of rule 44 of screw mandrel 41 are parallel to each other, as long as the scale read from rule 44 to be deducted the scale that the 4th push rod 432 exceeds nut 42, can obtain the distance that bar stretches out shear arm 11, namely bar is by the length of cutting.
the concrete course of work setting forth lower the present embodiment below: when needs are sheared bar, first this bar is put into cutting mechanism 1, then the location of reading of length rotary screw rod 41 adjusting nut 42 on rule 44 (needing to add that the 4th push rod 432 exceeds the distance of nut 42) be sheared is needed here according to bar, bar reach afterwards, when bar front end is against on the 4th push rod 432, sensor sends signal, bar stops mobile, now, 3rd drive unit 34 drives the 3rd push rod 342 to move, compression upper cover 32 moves down and is pressed in compression supporting piece 31 by bar, second drive unit 22 drives the second push rod 222 to move, second push rod 222 drives retainer part 21 when the pin joint with the first connector 23 turns to certain position, hold the lower end of this bar, then the first drive unit 14 drives the first push rod 142 to move, first push rod 142 drives shear arm 11 to rotate around holder, what shear arm 11 rotarily drove that cutter 12 matches with bottom knife 13 rotatably shears bar, after shearing completes, shear arm 11 resets, bar under second push rod 222 works and makes retainer plate 212 and be sheared departs from mutually, 3rd push rod 342 is packed up and is made the compression of compression upper cover 32 rising release to bar, so just, complete a shearing manipulation.
repeat above step, just can carry out continuous print shearing to bar.
above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (9)
1. the shear of a bar, for the shearing to bar, it is characterized in that: described shear comprises holder, for described bar to be sheared being pressed on the hold-down mechanism on described holder, for carrying out the cutting mechanism of shearing to described bar, the feeding port side of described bar is located at by described hold-down mechanism, described cutting mechanism comprises the rotating shear arm be located on described holder, one end of described shear arm is provided with cutter, described holder is provided with the bottom knife coordinated with described cutter for shearing described bar, described cutting mechanism also comprises the first drive unit be located at and realized for driving described shear arm to rotate between described holder and described shear arm shearing, for the material carrying mechanism of bar described in support when described shear is also included in described cutting mechanism shearing, described material carrying mechanism comprises the retainer part be located at for bar described in support on described shear arm of rotation, be located at the second drive unit for driving described retainer part to rotate between described shear arm and described retainer part.
2. the shear of a kind of bar according to claim 1, it is characterized in that: described shear arm is provided with the first connector, what described retainer part rotated is connected on described first connector, and described retainer part comprises for one end of bar described in support, the other end be rotatably connected on described second drive unit.
3. the shear of a kind of bar according to claim 1, it is characterized in that: described first drive unit is the first hydraulic cylinder, described first hydraulic cylinder comprise the first cylinder body be fixed on described holder, can flexible vertically the first push rod of relatively described first cylinder body, the external part of described first push rod is rotatably connected on described shear arm.
4. the shear of a kind of bar according to claim 1, it is characterized in that: described second drive unit is the second hydraulic cylinder, described second hydraulic cylinder comprise the second cylinder body be fixed on described shear arm, can flexible vertically the second push rod of relatively described second cylinder body, being rotatably connected on described second push rod of described retainer part.
5. the shear of a kind of bar according to claim 1, it is characterized in that: described bottom knife has the blade face of indent, the bottom in described blade face is arc surface, described bottom knife has front surface and rear surface along on the direction of its thickness, described rear surface is positioned at perpendicular, described front surface formation crossing with described arc surface one section of circular arc line, described front surface is divided into upper surface and lower surface by the tangent line at described circular arc line minimum point place, described upper surface is positioned at perpendicular, described lower surface rotates to described rear surface around described tangent line and forms 1 degree of angle with perpendicular, described bottom knife revolves turnback around described tangent line and is described cutter.
6. the shear of a kind of bar according to claim 1, it is characterized in that: described hold-down mechanism is located on described holder, described hold-down mechanism comprise fixing be located on described holder for hold described bar compression supporting piece, can slide up and down and be located on described holder and the 3rd drive unit that described bar can be pressed on compression upper cover in described compression supporting piece, drive described compression upper cover to slide up and down.
7. the shear of a kind of bar according to claim 6, it is characterized in that: described hold-down mechanism also comprises the compression base be located at guide post on described holder, be fixedly arranged on described guide post lower end of slip, described compression upper cover is fixedly arranged on the upper end of described guide post, described 3rd drive unit is the 3rd hydraulic cylinder, described 3rd hydraulic cylinder comprise the 3rd cylinder body be fixed on described holder, can flexible vertically the 3rd push rod of relatively described 3rd cylinder body, the external part of described 3rd push rod is located on described compression base.
8. the shear of a kind of bar according to claim 1, it is characterized in that: described shear also comprises is cut the scalling-off detecting mechanism of length for limiting described bar, described scalling-off detecting mechanism and described hold-down mechanism are positioned at the different both sides of described shear arm, described scalling-off detecting mechanism comprises the screw mandrel be located on described shear arm rotated around Pivot Point Center line direction, be located at the nut on described screw mandrel, the length bearing of trend of described screw mandrel is parallel to the length bearing of trend of described bar, what described nut can coordinate moves along the length bearing of trend of described screw mandrel along with described screw mandrel while Pivot Point Center line direction is rotated, described scalling-off detecting mechanism also comprises and being connected on described nut for stopping the retention device that described bar stretches out, be fixedly connected on the rule on described shear arm, the setting that described rule and described screw mandrel are parallel to each other.
9. the shear of a kind of bar according to claim 8, it is characterized in that: described retention device is the 4th hydraulic cylinder, described 4th hydraulic cylinder comprise the 4th cylinder body be located on described nut, can the flexible vertically setting for stopping the 4th push rod that described bar stretches out, described 4th push rod and described bar coaxial inner conductor of relatively described 4th cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410566515.8A CN104308257B (en) | 2014-10-22 | A kind of shear of bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410566515.8A CN104308257B (en) | 2014-10-22 | A kind of shear of bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104308257A true CN104308257A (en) | 2015-01-28 |
| CN104308257B CN104308257B (en) | 2017-01-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392178A (en) * | 2016-06-30 | 2017-02-15 | 无锡前洲兴华机械有限公司 | Steel tube cutting machine with automatic clamping function |
| CN107199367A (en) * | 2017-05-26 | 2017-09-26 | 清远初曲智能科技有限公司 | It is a kind of to accelerate to smelt the secondary metal resource shearing machine for melting down speed |
| CN109291121A (en) * | 2018-09-20 | 2019-02-01 | 安徽荣明新材料科技有限公司 | A kind of cutter device for the processing of PCT shell |
| CN112453282A (en) * | 2020-11-23 | 2021-03-09 | 建科机械（天津）股份有限公司 | Shearing mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576380A (en) * | 1984-04-12 | 1986-03-18 | Shields D Leet | Cast metal breaker apparatus |
| CN2675312Y (en) * | 2003-12-06 | 2005-02-02 | 汪大汪 | Waste metal hydraulic shearing machine |
| CN1799741A (en) * | 2005-11-01 | 2006-07-12 | 广东海阳物资回收有限公司 | Metal shearing machine |
| CN2815568Y (en) * | 2005-08-31 | 2006-09-13 | 江苏国力锻压机床有限公司 | Pneumatic support device for plate shearing machine |
| CN101157151A (en) * | 2007-10-29 | 2008-04-09 | 张家港市优希宏达机电厂 | Cold shearing machine |
| CN204135451U (en) * | 2014-10-22 | 2015-02-04 | 施士清 | A kind of shear of bar |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576380A (en) * | 1984-04-12 | 1986-03-18 | Shields D Leet | Cast metal breaker apparatus |
| CN2675312Y (en) * | 2003-12-06 | 2005-02-02 | 汪大汪 | Waste metal hydraulic shearing machine |
| CN2815568Y (en) * | 2005-08-31 | 2006-09-13 | 江苏国力锻压机床有限公司 | Pneumatic support device for plate shearing machine |
| CN1799741A (en) * | 2005-11-01 | 2006-07-12 | 广东海阳物资回收有限公司 | Metal shearing machine |
| CN101157151A (en) * | 2007-10-29 | 2008-04-09 | 张家港市优希宏达机电厂 | Cold shearing machine |
| CN204135451U (en) * | 2014-10-22 | 2015-02-04 | 施士清 | A kind of shear of bar |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392178A (en) * | 2016-06-30 | 2017-02-15 | 无锡前洲兴华机械有限公司 | Steel tube cutting machine with automatic clamping function |
| CN107199367A (en) * | 2017-05-26 | 2017-09-26 | 清远初曲智能科技有限公司 | It is a kind of to accelerate to smelt the secondary metal resource shearing machine for melting down speed |
| CN109291121A (en) * | 2018-09-20 | 2019-02-01 | 安徽荣明新材料科技有限公司 | A kind of cutter device for the processing of PCT shell |
| CN112453282A (en) * | 2020-11-23 | 2021-03-09 | 建科机械（天津）股份有限公司 | Shearing mechanism |
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Inventor after: Gao Chao Inventor after: Shi Shiqing Inventor before: Shi Shiqing |
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Effective date of registration: 20170828 Address after: Suzhou City, Jiangsu province 215632 Jin Gang Zhen Chang Shan Cun Zhangjiagang Chaoyang first group No. 20 Co-patentee after: Shi Shiqing Patentee after: Gao Chao Address before: Suzhou City, Jiangsu province 215632 Jin Gang Zhen Chang Shan Cun Zhangjiagang Chaoyang first group No. 20 Patentee before: Shi Shiqing |
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