CN101856743B - Round steel cutter - Google Patents
Round steel cutter Download PDFInfo
- Publication number
- CN101856743B CN101856743B CN2010101519489A CN201010151948A CN101856743B CN 101856743 B CN101856743 B CN 101856743B CN 2010101519489 A CN2010101519489 A CN 2010101519489A CN 201010151948 A CN201010151948 A CN 201010151948A CN 101856743 B CN101856743 B CN 101856743B
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- Prior art keywords
- round steel
- piston rod
- cutting machine
- overarm
- cylinder
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- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 62
- 239000010959 steel Substances 0.000 title claims abstract description 62
- 238000010008 shearing Methods 0.000 claims abstract description 22
- 238000003825 pressing Methods 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims description 40
- 239000000463 material Substances 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 11
- 239000011230 binding agent Substances 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The invention discloses a round steel cutter, which comprises a fixed cutter, a movable cutter and a main oil cylinder, wherein the fixed cutter is fixed at a shearing port of the cutter body; the movable cutter is arranged on a movable cutter seat; the movable cutter seat is connected with a piston rod of the main oil cylinder; and a pressing device and a supporting device for clamping round steels during shearing are arranged at a feeding hole and a discharge hole of the cutter body. Because hydraulic pressure is used as shearing power, the shearing force is large, the motion is stable, the noise is low, the shearing process does not produce metal scraps and sparks, and the processing safety is improved. Moreover, the round steel cutter effectively solves the shock produced during shearing the round steels, improves the flatness of round steel sections, improves the processing efficiency, and provides convenience for subsequent processing.
Description
Technical field
The present invention relates to the round steel cutting machine, particularly a kind ofly shear, and round steel produces the round steel cutting machine of vibrations can effectively prevent to shear the time applicable to the major diameter round steel.
Background technology
At the metal manufacture field, carry out the blanking of metal bar material such as round steel through regular meeting, cutting mode commonly used is to adopt the round steel cutting machine to carry out shearing blanking; The diameter of round steel is also different, shears large diameter round steel requirement than higher, and very big shearing force arranged; But also the stability of round steel when need to guarantee shearing, because round steel can produce vibrations when shearing, vibrations then can cause the section gradient big; Circularity is relatively poor, brings difficulty to following process; Mostly existing round steel cutting machine is to adopt the driven by motor rotation, i.e. driven by motor big belt pulley rotation, the rotation of big belt pulley driven gear axle; The rotation of gear shaft driven gear, the rotation of gear driven eccentric shaft, eccentric shaft drives seated and does motion repeatedly; Shear-blade is equipped with in the motion of seated drivening rod on the connecting rod, move repeatedly with this and carry out the round steel shearing; The power that this cutting machine produced is less, only is applicable to the shearing of minor diameter round steel, shears large diameter round steel and not only can't reach satisfied shear effect; Also can make the cutting machine serious wear, the life-span reduces.
Summary of the invention
The present invention has overcome the deficiency that exists in the above-mentioned prior art, and a kind of shearing great efforts are provided, and can effectively control the vibrations that round steel is produced when shearing, and improves the round steel cutting machine of round steel section flatness.
Technical scheme of the present invention is achieved in that
A kind of round steel cutting machine; Comprise stationary knife, moving knife, master cylinder; Stationary knife is fixed on the material mouth of cutting of cutting machine body and locates; Moving knife is installed on the moving knife seat, and the moving knife seat links to each other with the piston rod of master cylinder, is provided with material pressing device and material-supporting device in order to clamping round steel when shearing respectively at the charging aperture and the discharging opening place of body.
As preferably, described material pressing device comprises fixed block and the cylinder body that is arranged on the charging aperture both sides, in cylinder body, laterally is equipped with main shaft; In cylinder body, vertically move, crosswise fixed has pressure block, the pressure block upper end is connected with cylinder, the front end of pressure block has an inclined-plane a; On main shaft, offer groove, the front end of groove be one with pressure block on the inclined-plane b that matches of inclined-plane a, pressure block is plugged in the groove; The front end of main shaft is provided with binder block, and the rear end of main shaft is provided with resetting means.
As preferably, on main shaft, offer symmetrical two grooves, described pressure block is fork-shaped, has symmetrical two pushing blocks, and the front end of pushing block has inclined-plane a, and described pushing block is plugged in the groove.Pressure block has two fork-shaped pushing blocks of symmetry, promotes main shaft when pushing block moves down and travels forward, and makes the main shaft stress equalization.
As preferably, described resetting means comprises spring a, pull bar; End cap, described end cap links to each other with cylinder body, and an end of pull bar passes end cap and connects rear-end of spindle; The other end of pull bar is provided with baffle plate, and spring a is set on the pull bar, and the two ends of spring a offset with end cap, baffle plate respectively.Main shaft travels forward and carries out binder, the compression spring, and when binder finishes, when carrying out binder operation next time again, main shaft needs return, at this moment, moves on the cylinder piston rod, and spring a discharges elastic force resets main shaft.
As preferably, described material-supporting device comprises the hydraulic jack that is installed in cutting machine discharging opening place, on the piston rod of hydraulic jack, is equiped with the retainer seat, on the retainer seat, retainer plate is installed.Hydraulic jack drives the retainer plate motion, and retainer plate withstands on body with round steel and cuts on the medial surface of material mouth, thereby at the discharging opening place round steel is clamped, and prevents that it from producing vibrations.
Be the sheared length of control round steel, guarantee that sheared length each time is identical, as preferably; Discharging opening peripheral hardware at body has the Lifting Device of cutting off length in order to the control round steel, and it comprises support, overarm, and it is rack-mount to hang oneself from a beam; In overarm, the liftout cylinder is installed, be provided with in the end of the piston rod of liftout cylinder one link to each other with liftout cylinder control magnetic valve near switch, be arranged with a backgauge cover in the end of piston rod; In the backgauge cover, be provided with axis hole; In axis hole, be equipped with a feeler lever, the head of feeler lever is exposed to outside the backgauge cover, the afterbody of feeler lever with described near switch relative and and near leaving the gap between the switch; On feeler lever, contracting behind the sheathed promising feeler lever pressurized provides the spring b of screen resilience when magnetic contacts near switch, in overarm, be provided with the flexible control device of control piston bar.
As preferably; Both sides at support are provided with guide rail; Overarm upper end hangs on the guide rail, in support, is provided with one and drives the screw rod that overarm is slided on guide rail, described screw rod and support axial restraint, circumferentially is rotationally connected; And on screw rod, be arranged with a nut, described nut is fixedly connected with overarm.
As preferably; Described control device comprise the screw that is arranged on the liftout cylinder piston rod outer wall and in order to the piston rod of responding to said screw near switch; Described piston rod is installed on the support bar near switch; Described support bar is along the setting of piston rod length direction, and an end of support bar is fixedly connected with overarm, and described piston rod connects liftout cylinder control magnetic valve near switch.
As preferably; Be respectively equipped with first step, second step before and after in the axis hole of backgauge cover, and the front portion of feeler lever is provided with shaft shoulder a in axis hole, shaft shoulder a one side and first step offset; The end of shaft shoulder a opposite side and spring b offsets, and the other end and the second step of spring b offset.
Adopted the invention has the beneficial effects as follows of technique scheme:
(1), adopt hydraulic pressure as shearing power, shearing force is big, and the stable action noise is little, and shear history can not produce metal fragment, spark, has improved processing safety.
(2), efficiently solve the vibrations that produced when round steel is sheared, improved the flatness of round steel section, improved working (machining) efficiency, for following process is provided convenience.
Description of drawings
Fig. 1 is the structural representation of cutting machine of the present invention;
Fig. 2 is the structure sketch map of Fig. 1;
Fig. 3 is the side structure sketch map of Fig. 1;
Fig. 4 is the mounting structure sketch map of material pressing device;
Fig. 5 is the internal structure sketch map of material pressing device;
Fig. 6 is the working state schematic representation of material pressing device;
Fig. 7 is the structural representation of pressure block in the material pressing device;
Fig. 8 is that the A of Fig. 7 is to view;
Fig. 9 is the structural representation of main shaft in the material pressing device;
Figure 10 is that the A of Fig. 9 is to view;
Figure 11 is the structural representation of material-supporting device;
Figure 12 is that the A of Figure 11 is to view;
Figure 13 is the working state schematic representation of material-supporting device;
Figure 14 is the structural representation of Lifting Device;
Figure 15 is the B portion enlarged diagram among Figure 14;
Figure 16 is that the A of Figure 14 is to view.
The specific embodiment
The specific embodiment of the present invention is following:
Embodiment: a kind of round steel cutting machine; Shown in Fig. 1-3, comprise stationary knife 51, moving knife 52, master cylinder 53, stationary knife 51 is fixed on the material mouth of cutting of cutting machine body 54 and locates; Moving knife 52 is installed on the moving knife seat 55; Moving knife seat 55 links to each other with the piston rod of master cylinder 53, is provided with material pressing device and material-supporting device in order to clamping round steel when shearing respectively at the charging aperture and the discharging opening place of body 54, all offers the semicircle hole slot of ccontaining round steel on moving knife 52 and the stationary knife 51; And moving knife 52 and stationary knife 51 setting of staggering; Round steel is sent in the semicircle hole slot of stationary knife 51 through feed appliance after, material pressing device and material-supporting device effect clamp round steel, moving knife 51 under the effect of master cylinder 53 on body 54 slippage carry out blank.
Like Fig. 4, Fig. 5, shown in Figure 6, described material pressing device comprises the fixed block 49 and cylinder body 31 that is arranged on the charging aperture both sides, in cylinder body 31, laterally is equipped with main shaft 32; In cylinder body 31, vertically move, crosswise fixed has pressure block 33; Be with lubricated copper sheathing 46 in main shaft 32 and cylinder body 31 junctions, so that slide in main shaft 32 front and back, pressure block 33 upper ends are connected with cylinder 38; Cylinder 38 is through being bolted to cylinder body 31 upper ends; The piston rod 39 of cylinder 38 links to each other with pressure block 33 upper ends, promptly offers T-slot 40 in the upper end of pressure block 33, and piston rod 39 is fastened in the T-slot 40; Thus, piston rod 39 can drive pressure block 33 and move up and down, and the front end of main shaft 32 is provided with binder block 37, and the rear end of main shaft 32 is provided with resetting means; Binder block 37 can be tight with feed collet with fixed block 49 actings in conjunction.
Like Fig. 7, shown in Figure 8, described pressure block 33 is fork-shaped, has symmetrical two pushing blocks 41; The front end of pushing block 41 has inclined-plane a34, and described pushing block 41 is plugged in the groove 35, like Fig. 9, shown in Figure 10; On main shaft 32, offer symmetrical two grooves 35, the front end of groove 35 be one with pressure block 33 on the inclined-plane b36 that matches of inclined-plane a34, pushing block 41 is plugged in the groove 35; Inclined-plane a34 pastes with inclined-plane b36 mutually, and the inclination angle on two inclined-planes is 7 °～9 °.
Described resetting means comprises spring a42, pull bar 43, end cap 44; Described end cap 44 links to each other with cylinder body 31; One end of pull bar 43 passes end cap 44 and connects main shaft 32 rear ends, and the other end of pull bar 44 is provided with baffle plate 45, and baffle plate 45 is spacing through the nut 47 that is set on pull bar 44 other ends; Spring a42 is set on the pull bar 43, and the two ends of spring a42 offset with end cap 44, baffle plate 45 respectively.
During work, as shown in Figure 6, pressure block 33 moves down under the effect of cylinder 38; Inclined-plane a34 extruding inclined-plane b36 promotes main shaft to be moved ahead it to carry out material folding, when binder block 37 touches round steel 48 and round steel 48 is pressed on the fixed block 49 of charging aperture opposite side, round steel 48 is clamped; Cutting machine is sheared round steel then, and after having sheared, cylinder 38 drives on the pressure block 33 and moves; Spring 42 discharges elastic force resets main shaft 32, so that carry out operation next time.
Like Figure 11, shown in Figure 12; Described material-supporting device comprises the hydraulic jack 71 that is installed in cutting machine discharging opening place, and hydraulic jack 71 is installed on the cutting machine body 54 through bolt c79; On the piston rod 72 of hydraulic jack 71, be equiped with retainer seat 73; Described retainer seat 73 is to be installed on the piston rod 72 through bolt b78, and along continuous straight runs offers a T-slot 75 on retainer seat 73, in described T-slot 75, is arranged with retainer plate 74; Retainer plate 74 is arranged on the middle of retainer seat 73, and the height of retainer plate 74 is less than the height of retainer seat 73.On retainer seat 73, vertically be provided with screw 76, in screw 76, be provided with bolt a77, the lower end of bolt a77 pushes against retainer plate 74.
Shown in figure 13; During work, round steel 48 enters in the sheared edge, and hydraulic jack 71 promotes piston rod 72 and outwards moves; Drive retainer plate 74 and prop up round steel 48 left sides; Round steel 48 right sides contact with the garden cambered surface 88 of discharging opening place body, and retainer plate 74 pushes against round steel 48 on the garden of body cambered surface 12, and then carry out next step shearing operation.
Like Figure 14, shown in Figure 16, at the discharging opening peripheral hardware of body 54 Lifting Device of cutting off length in order to the control round steel is arranged, it comprises support 1, overarm 2; Support 1 crosswise fixed is on cutting machine body 54, and overarm 2 is installed on the support 1, is provided with guide rail 3 in the bilateral symmetry of support 1; 2 upper ends of hanging oneself from a beam hang on the guide rail 3 through pressing plate 16; Pressing plate 16 links to each other with overarm 2 through bolt d21, in support 1, is provided with a cavity 22, in cavity 22, is equipped with one and drives the screw rod 4 that overarm 2 is slided on guide rail 3; Described screw rod 4 is with support 1 axial restraint, circumferentially be rotationally connected; Be that cavity 22 interior screw rods 4 are provided with shaft shoulder b18, on the screw rod 4 between shaft shoulder b18 and the support 1, be with bearing a19, bearing a19 both sides offset with shaft shoulder b18, support 1 respectively; Equally, be with bearing b23 on the screw rod 4 outside cavity, outside bearing b23, be provided with locking nut 20; Bearing b23 both sides offset with support 1 and locking nut 20 respectively; Thus, screw rod 4 is restricted in the horizontal direction, can not move axially; On screw rod 4, be arranged with a square nut 11, described nut 11 is fixedly connected through bolt e24 with overarm 2.In screw rod 4 ends handwheel can be set, rotating screw bolt 4 can make nut 11 take place circumferentially to rotate, move axially, and then driving overarm 2 moves forward and backward.
Described control device comprise the screw that is arranged on liftout cylinder piston rod 6 outer walls 12 and in order to the piston rod of responding to said screw 12 near switch 13; Described piston rod is installed on the support bar 14 near switch 13; Described support bar 14 is along piston rod 6 length direction settings; One end of support bar 14 is fixedly connected with overarm 2, and described piston rod connects liftout cylinder control magnetic valve near switch 13.
The course of work of Lifting Device is: the cutting machine feed appliance is sent round steel into cutting of cutting machine and is expected mouth, and continues to move ahead, and when round steel touched feeler lever, the feeler lever retraction touched near switch; Near switch liftout cylinder control magnetic valve is sent control signal, control liftout cylinder intake, the liftout cylinder piston rod outwards advances capable pusher towards cutting a material mouthful direction, and round steel is pushed back; When screw passed through piston rod near switch, piston rod arrived screw near inductive switching, and sent control signal and give liftout cylinder control magnetic valve; Control liftout cylinder stops air inlet, and controls the liftout cylinder and carry out exhaust, and piston rod retracts to initial position; Cutting machine cuts off operation, and the distance between round steel end face and the moving knife is the round steel shearing length at this moment, after the cut-out; Feed appliance continues feeding, repeats above-mentioned action, goes round and begins again; Distance between adjustment screw and the liftout cylinder piston rod can be adjusted the sheared length of round steel, and in addition, the adjusting of shearing length can also be carried out faster and more convenient operation through rotating screw bolt.
Claims (8)
1. round steel cutting machine; It is characterized in that: comprise stationary knife (51), moving knife (52), master cylinder (53); Stationary knife (51) is fixed on the material mouth of cutting of cutting machine body (54) and locates; Moving knife (52) is installed on the moving knife seat (55), and moving knife seat (55) links to each other with the piston rod of master cylinder (53), is provided with material pressing device and material-supporting device in order to clamping round steel when shearing respectively at the charging aperture and the discharging opening place of body (54); Discharging opening peripheral hardware at body (54) has the Lifting Device of cutting off length in order to the control round steel; It comprises support (1), overarm (2), and overarm (2) is installed on the support (1), in overarm (2), liftout cylinder (5) is installed; Be provided with in the end of the piston rod (6) of liftout cylinder (5) one link to each other with liftout cylinder control magnetic valve near switch (7); Be arranged with a backgauge cover (8) in the end of piston rod (6), in backgauge cover (8), be provided with axis hole, in axis hole, be equipped with a feeler lever (9); The head of feeler lever (9) is exposed to outside the backgauge cover (8); The afterbody of feeler lever (9) and described near switch (7) relatively and and near leaving the gap between the switch (7), after feeler lever (9) is gone up sheathed promising feeler lever (9) pressurized, contracting provides the spring b (10) of screen resilience when touching near switch (7), in overarm (2), be provided with the flexible control device of control piston bar (6).
2. round steel cutting machine according to claim 1; It is characterized in that: described material pressing device comprises the fixed block (49) and cylinder body (31) that is arranged on the charging aperture both sides; In cylinder body (31), laterally be equipped with main shaft (32), in cylinder body (31), vertically move, crosswise fixed has pressure block (33), pressure block (33) upper end is connected with cylinder (38); The front end of pressure block (33) has an inclined-plane a (34); On main shaft (32), offer groove (35), the front end of groove (35) be one with pressure block (33) on the inclined-plane b (36) that matches of inclined-plane a (34), pressure block (33) is plugged in the groove (35); The front end of main shaft (32) is provided with binder block (37), and the rear end of main shaft (32) is provided with resetting means.
3. round steel cutting machine according to claim 2; It is characterized in that: on main shaft (32), offer symmetrical two grooves (35); Described pressure block (33) is fork-shaped; Have symmetrical two pushing blocks (41), the front end of pushing block (41) has inclined-plane a (34), and described pushing block (41) is plugged in the groove (35).
4. round steel cutting machine according to claim 2 is characterized in that: described resetting means comprises spring a (42), pull bar (43); End cap (44); Described end cap (44) links to each other with cylinder body (31), and an end of pull bar (43) passes end cap (44) and connects main shaft (32) rear end, and the other end of pull bar (44) is provided with baffle plate (45); Spring a (42) is set on the pull bar (43), and the two ends of spring a (42) offset with end cap (44), baffle plate (45) respectively.
5. round steel cutting machine according to claim 1; It is characterized in that: described material-supporting device comprises the hydraulic jack (71) that is installed in cutting machine discharging opening place; On the piston rod (72) of hydraulic jack (71), be equiped with retainer seat (73), retainer plate (74) is installed on retainer seat (73).
6. round steel cutting machine according to claim 1; It is characterized in that: be provided with guide rail (3) in the both sides of support (1); Overarm (2) upper end hangs on the guide rail (3), in support (1), is provided with one and drives overarm (2) and go up the screw rod (4) that slides at guide rail (3), and described screw rod (4) is with support (1) axial restraint, circumferentially be rotationally connected; And on screw rod (4), be arranged with a nut (11), described nut (11) is fixedly connected with overarm (2).
7. round steel cutting machine according to claim 1; It is characterized in that: described control device comprise the screw (12) that is arranged on liftout cylinder piston rod (6) outer wall and in order to the piston rod of responding to said screw (12) near switch (13); Described piston rod is installed on the support bar (14) near switch (13); Described support bar (14) is along piston rod (6) length direction setting; One end of support bar (14) is fixedly connected with overarm (2), and described piston rod connects liftout cylinder control magnetic valve near switch (13).
8. round steel cutting machine according to claim 1; It is characterized in that: be respectively equipped with first step, second step before and after in the axis hole of backgauge cover (8); And the front portion of feeler lever (9) is provided with shaft shoulder a (15) in axis hole; Shaft shoulder a (15) one sides and first step offset, and the end of shaft shoulder a (15) opposite side and spring b (10) offsets, and the other end and the second step of spring b (10) offset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101519489A CN101856743B (en) | 2010-04-20 | 2010-04-20 | Round steel cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101519489A CN101856743B (en) | 2010-04-20 | 2010-04-20 | Round steel cutter |
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| Publication Number | Publication Date |
|---|---|
| CN101856743A CN101856743A (en) | 2010-10-13 |
| CN101856743B true CN101856743B (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101519489A Expired - Fee Related CN101856743B (en) | 2010-04-20 | 2010-04-20 | Round steel cutter |
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| Country | Link |
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| CN (1) | CN101856743B (en) |
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| CN109352066B (en) * | 2018-11-16 | 2024-02-02 | 浙江卓逸铝业有限公司 | Aluminum profile cutting and transferring mechanism |
| CN109759494B (en) * | 2019-03-12 | 2020-03-24 | 台州市良曜成套设备有限公司 | Metal bar cutting device and bar cutting control method using same |
| CN111958033B (en) * | 2020-08-14 | 2023-06-13 | 郑州机械研究所有限公司 | Bar shearing machine |
| CN114378115A (en) * | 2022-02-24 | 2022-04-22 | 中冶赛迪工程技术股份有限公司 | Continuous casting and rolling pendulum shear |
| CN114850567B (en) * | 2022-06-16 | 2023-06-27 | 宁波祥路中天新材料科技股份有限公司 | Tracking cut-off machine |
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|---|---|---|---|---|
| CN2233806Y (en) * | 1995-07-06 | 1996-08-28 | 荣成第二锻压机床厂 | Positioning device for bar cutting machine |
| CN2271942Y (en) * | 1996-07-22 | 1998-01-07 | 朱力 | Precision shearing and cutting machine for bar stock |
| CN201168818Y (en) * | 2008-03-27 | 2008-12-24 | 天津市建科机械制造有限公司 | Hydraulic reinforced bar shears |
| CN201720515U (en) * | 2010-04-20 | 2011-01-26 | 张龙弟 | Round steel cut-off machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0929534A (en) * | 1995-07-14 | 1997-02-04 | Nisshin Koki Kk | Device and method for cutting cast steel slab and discharging method |
| JP4369304B2 (en) * | 2004-06-03 | 2009-11-18 | 住友重機械テクノフォート株式会社 | Billet cutting device |
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2010
- 2010-04-20 CN CN2010101519489A patent/CN101856743B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233806Y (en) * | 1995-07-06 | 1996-08-28 | 荣成第二锻压机床厂 | Positioning device for bar cutting machine |
| CN2271942Y (en) * | 1996-07-22 | 1998-01-07 | 朱力 | Precision shearing and cutting machine for bar stock |
| CN201168818Y (en) * | 2008-03-27 | 2008-12-24 | 天津市建科机械制造有限公司 | Hydraulic reinforced bar shears |
| CN201720515U (en) * | 2010-04-20 | 2011-01-26 | 张龙弟 | Round steel cut-off machine |
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| Title |
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| JP特開2005-342852A 2005.12.15 |
| JP特開9-29534A 1997.02.04 |
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Denomination of invention: Round steel cutter Effective date of registration: 20130910 Granted publication date: 20120104 Pledgee: Zhejiang Deqing rural commercial bank Limited by Share Ltd. Pledgor: ZHEJIANG LONGLI MACHINERY Co.,Ltd. Registration number: 2013990000669 |
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