CN105689794A - Device for fixed-length sawing - Google Patents
Device for fixed-length sawing Download PDFInfo
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- CN105689794A CN105689794A CN201610307080.4A CN201610307080A CN105689794A CN 105689794 A CN105689794 A CN 105689794A CN 201610307080 A CN201610307080 A CN 201610307080A CN 105689794 A CN105689794 A CN 105689794A
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- cylinder
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- piston cylinder
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- sawing device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
- B23D47/04—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for feeding, positioning, clamping, or rotating work
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- Sawing (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to a device for fixed-length sawing. The device comprises a transmission roller, a fixed-length baffle, a saw blade, a fixed-length framework and a pressing device, wherein the pressing device is arranged on the fixed-length framework; the transmission roller is arranged at the bottom of the fixed-length framework; the fixed-length baffle is arranged at one end of the transmission roller, and the saw blade is arranged outside the transmission roller; the pressing device consists of a pressing beam component, a supporting frame part and a double-air cylinder part. The device provided by the invention is novel in structure, convenient to use and high in yield, thereby having wide application prospect.
Description
Technical field
The present invention relates to light-alloy (aluminum, magnesium etc.) section bar or tubing length saw incision technology field, especially a kind of scale sawing device。
Background technology
Through the fast development in track traffic and aircraft industry of China's last decade, aluminum and magnesium alloy extrusion section bar and tubing because of its light weight, inherent characteristics that Performance Strength is high, it is widely used。But compared with abroad, in extruded threads production process, the extrudate yield rate that China generates is relatively low, causes that its cost increases, competitiveness reduces。And retraining the many factors that yield rate improves, one of which is exactly length and the sectional dimension precision of finished product。As shown in Figure 1, domestic this form binder sawing commonly used at present, the tubing 4 squeezed out in figure is through a series of burning optimization on line of front and continued, traction, interrupt, after the operation such as stretching, it is placed on the conveyor roller 1 in accompanying drawing 2, then accurately adjust fixed ruler baffle 3 according to finished product 5 length dimension that user is customized and arrive the distance of L between saw blade 10, adjusting rear conveyor roller 1 longitudinally carries to the right tubing 4(in order to improve production efficiency, the tubing 4 of institute's sawing is generally batch sawing, tubing 4 is according to sectional dimension, quantity generally answers > 2, now figure illustrates by 3 tubing 4) to scale roller-way 2, and fitted with the left side of fixed ruler baffle 3 in the right side of tubing 4, then the two pieces cylinder 8(in accompanying drawing 1 is led by 4 guide posts 7) drive material-pressing rack 9(to include material-pressing rack one 9-1 respectively, material-pressing rack two 9-2) decline compacting tubing 4 simultaneously, the horizontal sawing of last saw blade 10, terminate backed off after random, thus forming the finished product 5 (see accompanying drawing 2) that length is L。From above-mentioned series of process flow process describe and accompanying drawing 1,2 it can be seen that 1. material-pressing rack one 9-1 compacting be two pieces tubing 4, and material-pressing rack two 9-2 compacting is a tubing 4, this results in the difference of pressure-plate-force, what can produce institute's sawing goods when saw blade 10 sawing cuts gradient difference, even in sawing process, tubing 4 produces transverse shifting, thus causing finished product 5 length dimension and cutting slope deviation increase, percent defective increases；2. two pieces cylinder 8 is it cannot be guaranteed that synchronize binder, thus causing that when two pieces material-pressing rack 9 contacts tubing 4 respectively, tubing 4 is inconsistent at longitudinal leap, thus causing finished product 5 length dimension inconsistent, percent defective increases。If being designed as single cylinder, the sawing of batch section bar can cause that pressure-plate-force is not enough, thus percent defective increases；3. the material-pressing rack 9 difference according to goods, it is different that cylinder 8 is applied to the power on material-pressing rack 9, its rigidity can only be designed by maximum, force when design, and material-pressing rack 9 can not be interfered with saw blade 10 when suppressing sawing, thus it is relatively big to cause that material-pressing rack 9 is conducted oneself with dignity, and the rod chamber 8-1 of two pieces cylinder 8 there is no back pressure (see accompanying drawing 3), do not overcome the deadweight of material-pressing rack 9, so when suppressing light-wall pipe, often causing press power excessive and cause the deformation of goods 5 tail end, thus increasing percent defective；4. adopting two pieces material-pressing rack 9, the gap location between two pieces can not carry out binder, and goods 5 stress raisers otherwise can be caused to deform, thus adding percent defective, bulk when simultaneously result also in pressing special-shaped material is restricted, thus reducing production efficiency；5. in order to adapt to the variety classes section bar compacting sawing that highly difference is bigger, the stroke design of cylinder 8 is relatively big, can cause cylinder cylinder rod less stable, and such cylinder is easily damaged, and can cause a series of equipment downtime of front and continued after damage。
Summary of the invention
In order to solve, existing scale sawing device percent defective is of a relatively high and production efficiency is relatively low, thus causing the problem that cost increases, and the scale sawing device that the present invention provides a kind of novel structure, easy to use, production efficiency is high。
A kind of scale sawing device is the technical scheme is that for solving above-mentioned technical problem, it is characterized in that: include transmission roller channel, fixed ruler baffle, saw blade, scale framework, material pressing device, described scale framework is provided with material pressing device, scale base of frame is provided with transmission roller channel, described transmission roller channel one end is provided with fixed ruler baffle, outside is provided with saw blade, and described material pressing device is made up of binder beam parts, support frame component, double; two cylinder part。
The upper end of described scale framework is provided with air cylinder support, and lower end is provided with leg。
Described binder beam parts are made up of binder beam, hollow axle, bearing block, bearing, band key gear, and described hollow axle tail end is fixed in bearing block, and both sides are connected with band key gear, are provided with bearing in described bearing block, and described hollow axle outer cover is connected to binder beam。
Support frame as described above parts are made up of guide post, tooth bar, bracing frame, and described guide post is arranged on inside bracing frame, and described guide post both sides are provided with tooth bar。
The described pair of cylinder part by dual piston cylinder, be hinged with the single-piston cylinder of counterbalance valve, cylinder connecting plate is constituted, the forward flange end of described dual piston cylinder and the single-piston cylinder that has been hinged with counterbalance valve is fixed on cylinder connecting plate。
The head at above-mentioned dual piston cylinder top is connected with air cylinder support, and the head of bottom is connected with bearing block, and support frame as described above is fixed on inside leg, and described band key gear is connected in tooth bar。
Described transmission roller channel is made up of conveyor roller and scale roller-way, and described scale roller-way one end is provided with fixed ruler baffle, and other end arranged outside has saw blade。
Described saw blade both sides are each provided with a set of material pressing device respectively。
Described dual piston cylinder is made up of upper single-piston cylinder and the piston-cylinder that places an order。
Described binder beam is arranged below soft rubber。
The process that described material pressing device adopts is: be respectively mounted a dual piston cylinder and a single-piston cylinder being hinged with counterbalance valve due to described material pressing device two ends, it may be achieved synchronize to drive decline binder。The described scale sawing device cylinder stroke scope according to dual piston cylinder, the diameter dimension of its tubing that can process is also corresponding to an interval range with it, is described as follows:
(1) when the rod chamber air inlet respectively of the upper cylinder of described dual piston cylinder with lower cylinder, the aerofluxus respectively of the plunger shaft of the upper cylinder of described dual piston cylinder and lower cylinder, namely dual piston cylinder is in contraction state, stroke is when being 0, and the tubing that described scale sawing device can be processed is in greatest diametrical dimension state；(2) when the rod chamber air inlet of the upper cylinder of described dual piston cylinder, plunger shaft aerofluxus, the plunger shaft air inlet of the lower cylinder of described dual piston cylinder, rod chamber aerofluxus, namely the upper cylinder of dual piston cylinder is in contraction, lower cylinder is in the state of stretching out, stroke equal to the shift motion of lower cylinder piston time, the tubing that described scale sawing device can be processed mediates diameter dimension state；(3) when the plunger shaft air inlet respectively of the upper cylinder of described dual piston cylinder with lower cylinder, the aerofluxus respectively of the rod chamber of the upper cylinder of described dual piston cylinder and lower cylinder, namely, when the upper cylinder of dual piston cylinder, lower cylinder are all in the state of stretching out, stroke equal to the shift motion sum of upper cylinder cylinder body and lower cylinder piston, the tubing that described scale sawing device can be processed is in minimum diameter dimensional state。Described scale sawing device processing tubing greatest diametrical dimension, mid diameter size and minimum diameter size respectively Φ D1、ΦD2、ΦD3。
When pipe diameter dimension D satisfies condition D2≤D≤D1Time, the lower cylinder piston decline D of dual piston cylinder1The stroke of-D, when pipe diameter is of a size of D2Time, maximum decline H1Stroke, i.e. H1=D1-D2, it has been hinged with single-piston cylinder rod chamber aerofluxus under certain back pressure (this back pressure is for offsetting the deadweight of binder beam) of counterbalance valve, thus realizing compacting action simultaneously；When pipe diameter dimension D satisfies condition D3≤ D < D2Time, the upper cylinder cylinder body decline D of dual piston cylinder2The stroke of-D (note: the now lower section single-piston cylinder rod chamber aerofluxus of dual piston cylinder, plunger shaft not aerofluxus, thus ensure that lower section cylinder rod can decline binder simultaneously), when pipe diameter is of a size of D3Time, maximum decline H2Stroke, i.e. H2=D2-D3, the single-piston cylinder rod chamber being simultaneously hinged with counterbalance valve is further continued for keeping certain back pressure, thus realizing compacting action。
The present invention has the following advantages and beneficial effect compared with the prior art:
1) present invention employs dual piston cylinder, both added the stroke of cylinder, in turn ensure that the stability of cylinder cylinder rod, it is to avoid because the damage of cylinder causes front and continued equipment downtime, reduce production efficiency；
2) during dual piston cylinder binder of the present invention, adopting lazy-tongs to realize the synchronization of binder, it is to avoid the press power that batch pipe is subject to is uneven, thus improve batch pipe longitudinally and cut the precision of gradient, adding yield rate；
3) binder beam of the present invention adopts unjointed beam, because of see Fig. 1 without gap, interval m(), it is to avoid stress concentration, as long as so batch pipe 4 overall width is less than the width of unjointed beam, it is possible to sawing in batches, improve production efficiency；
4) dual piston cylinder of the present invention drives binder beam when binder, adopt and be hinged with the single-piston cylinder of counterbalance valve for offsetting the deadweight of binder beam, it is to avoid Leading Edge Deformation problem occurs during compacting thin-wall material, improves yield rate。
Accompanying drawing explanation
Fig. 1 is the structural representation of existing scale sawing material pressing device；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the schematic diagram of gas circuit of existing scale sawing material pressing device；
Fig. 4 is the structural representation of the scale sawing material pressing device of the present invention；
Fig. 5 is the side view of Fig. 4；
Fig. 6 is the top view of Fig. 5；
Fig. 7 is the partial enlarged drawing of Fig. 6；
Fig. 8 is the binder process chart of material pressing device of the present invention。
Specific embodiment
Below in conjunction with accompanying drawing 4～8 and detailed description of the invention, the present invention is further detailed explanation:
A kind of scale sawing device, including transmission roller channel, fixed ruler baffle, saw blade, scale framework, material pressing device, described scale framework is provided with material pressing device, scale base of frame is provided with transmission roller channel, described transmission roller channel one end is provided with fixed ruler baffle, outside is provided with saw blade, and described material pressing device is made up of binder beam parts, support frame component, double; two cylinder part。Being fixed with four air cylinder supports 22 on the corner, upper end of described scale framework 6, lower end is provided with four legs 23；Described binder beam parts are made up of binder beam 13, hollow axle 15, bearing block 20, bearing 19, band key gear 16, described hollow axle 15 tail end is fixed in bearing block 20, both sides are connected with band key gear 16, being fixed with bearing 19 in described bearing block 20, described hollow axle 15 outer cover is connected to binder beam 13；Support frame as described above parts are made up of guide post 17, tooth bar 18, bracing frame 14, and described guide post 17 is fixed on inside bracing frame 14, and described guide post 17 both sides are fixed with tooth bar 18；The described pair of cylinder part by dual piston cylinder 11, be hinged with the single-piston cylinder 12 of counterbalance valve 24, cylinder connecting plate 21 is constituted, the forward flange end of described dual piston cylinder 11 and the single-piston cylinder 12 that has been hinged with counterbalance valve 24 is fixed on cylinder connecting plate 21；The head at described dual piston cylinder 11 top is connected with air cylinder support 22 respectively, the head of bottom is connected with bearing block 20 respectively, support frame as described above 14 is fixed on inside leg 23, and described band key gear 16 is connected in tooth bar 18, and described binder beam 13 is arranged below soft rubber。
Described transmission roller channel is made up of conveyor roller 1 and scale roller-way 2, and described scale roller-way 2 one end is provided with fixed ruler baffle 3, and other end arranged outside has saw blade 10, and described binder beam parts are arranged on the both sides of saw blade 10。
The using method of the present invention is as follows:
The first step: first hollow axle 15 is penetrated binder beam 13, by bolt, packing ring, the two ends of binder beam 13 are respectively mounted in bearing block 20, bearing 19 is loaded again in bearing block 20, and fix bearing 19 with axle sleeve and hole back-up ring, then tape load key gear 16 is pacified again at the two ends of hollow axle 15, and fixed by axle end baffle plate, screw, packing ring, material is thus formed the binder beam parts with gear；
Second step: installing guide post 17 by bolt, washer pins, tooth bar 18 is on bracing frame 14, thus forming the support frame component of a guide 17 and tooth bar 18；
3rd step: by bolt, packing ring, cylinder connecting plate 21, self-control dual piston cylinder 11 is connected as one with the single-piston cylinder 12 forward flange end being hinged with counterbalance valve 24 with counterbalance valve, form a double; two cylinder part；
4th step: after completing above three step, by bolt, packing ring order, the double; two cylinder part of four air cylinder supports 22, four is installed and is symmetrically arranged on scale framework 6 top, then pass through the bracing frame 14 of bolt, packing ring, pin four guides 17 of installation and tooth bar 18 on four legs 23 of scale framework 6, finally the lifting two pieces binder beam parts with gear are inserted in from the lower section of guide post 17 respectively, and adopt bearing pin and split pin to make the cylinder rod of bearing block 20 and dual piston cylinder 11 and the single-piston cylinder 12 that has been hinged with counterbalance valve 24 hinged；
5th step: described binder beam 13 bottom is provided with conveyor roller 1 and scale roller-way 2, and described scale roller-way 2 one end is fixed with fixed ruler baffle 3, and other end arranged outside has saw blade 10；
6th step: accurately adjust fixed ruler baffle 3 according to finished product 5 length dimension that user is customized and arrive the distance of L between saw blade 10, adjusting rear conveyor roller 1 longitudinally carries to the right tubing 4(in order to improve production efficiency, the tubing 4 of institute's sawing is generally batch sawing, tubing 4 is according to sectional dimension, quantity generally answers > 2, ) to scale roller-way 2, and fitted with the left side of fixed ruler baffle 3 in the right side of tubing 4, the single-piston cylinder 12 then passing through dual piston cylinder 11 and be hinged with counterbalance valve 24 drives binder beam 13 to decline and suppresses tubing 4, the horizontal sawing of last saw blade 10, terminate backed off after random, thus forming the finished product 5 that length is L。
The employing process technological process principle of described material pressing device is as follows:
Seeing in Fig. 8, figure that 4-1 is greatest diametrical dimension is the tubing of Φ D1, and 4-2 is the tubing that mid diameter is of a size of Φ D2, and 4-3 is the tubing that minimum diameter is of a size of Φ D3。As section bar 4 depth of sections >=D2, the piston-cylinder 11-2 plunger shaft air inlet that places an order of dual piston cylinder 11, rod chamber aerofluxus, its cylinder rod declines。Because the cylinder rod head of the binder beam parts with gear and dual piston cylinder 11 and the single-piston cylinder 12 that has been hinged with counterbalance valve 24 is simultaneously hinged, so the cylinder rod of the lower cylinder cylinder rod of dual piston cylinder 11 and the single-piston cylinder 12 that has been hinged with counterbalance valve 24 drives the binder beam parts with gear to engage with tooth bar simultaneously, and decline with guide post 17 for guiding and suppress section bar 4 and goods 5 respectively, binder (note: be at this moment hinged with the rod chamber aerofluxus of the single-piston cylinder 12 of counterbalance valve 24) can be realized。
As section bar 4 depth of sections >=D3 during < D2, the air inlet simultaneously of the plunger shaft of upper single-piston cylinder 11-1 and the piston-cylinder 11-2 that places an order of dual piston cylinder 11, going up single-piston cylinder 11-1 and the aerofluxus respectively of the rod chamber of the piston-cylinder 11-2 that places an order, the cylinder rod of its dual piston cylinder 11 one-piece cylinder and the piston-cylinder 11-2 that places an order declines simultaneously。Because dual piston cylinder 11 and the single-piston cylinder 12 forward flange end being hinged with counterbalance valve 24 are connected as one by cylinder connecting plate 21, and the cylinder rod head of the binder beam parts with gear and dual piston cylinder 11 and the single-piston cylinder 12 that has been hinged with counterbalance valve 24 is simultaneously hinged, so the cylinder body of the one-piece cylinder of dual piston cylinder 11 and the place an order cylinder rod of piston-cylinder 11-2 and the single-piston cylinder 12 that has been hinged with counterbalance valve 24 drives the binder beam parts with gear to engage with tooth bar with cylinder rod simultaneously, and continue to decline with guide post 17 for guiding and suppress section bar 4 and goods 5 respectively, binder (note: the rod chamber of the single-piston cylinder 12 being at this moment hinged with counterbalance valve 24 continues aerofluxus) can be realized。
After compacting sawing completes, the air inlet simultaneously of the rod chamber of upper single-piston cylinder 11-1 and the piston-cylinder 11-2 that places an order of dual piston cylinder 11, plunger shaft aerofluxus, the cylinder rod so achieving that dual piston cylinder 11, the cylinder rod of single-piston cylinder 12 being hinged with counterbalance valve 24 and the binder beam parts with gear return to the position of original contraction, thus completing a binder sawing working cycle。
The above, be only the present invention preferably detailed description of the invention, but scope be not limited thereto, and is equal to replacement according to technical scheme and inventive concept thereof or changes, all should be encompassed within protection scope of the present invention。
Claims (10)
1. a scale sawing device, it is characterized in that: include transmission roller channel, fixed ruler baffle, saw blade, scale framework, material pressing device, described scale framework is provided with material pressing device, scale base of frame is provided with transmission roller channel, described transmission roller channel one end is provided with fixed ruler baffle, outside is provided with saw blade, and described material pressing device is made up of binder beam parts, support frame component, double; two cylinder part。
2. scale sawing device according to claim 1, it is characterised in that: the upper end of described scale framework (6) is provided with air cylinder support (22), and lower end is provided with leg (23)。
3. scale sawing device according to claim 1, it is characterized in that: described binder beam parts are made up of binder beam (13), hollow axle (15), bearing block (20), bearing (19), band key gear (16), described hollow axle (15) tail end is fixed in bearing block (20), both sides are connected with band key gear (16), being provided with bearing (19) in described bearing block (20), described hollow axle (15) outer cover is connected to binder beam (13)。
4. scale sawing device according to claim 1, it is characterized in that: support frame as described above parts are made up of guide post (17), tooth bar (18), bracing frame (14), described guide post (17) is arranged on bracing frame (14) inner side, and described guide post (17) both sides are provided with tooth bar (18)。
5. scale sawing device according to claim 1, it is characterized in that: the described pair of cylinder part by dual piston cylinder (11), be hinged with the single-piston cylinder (12) of counterbalance valve (24), cylinder connecting plate (21) is constituted, the forward flange end of described dual piston cylinder (11) and the single-piston cylinder (12) that has been hinged with counterbalance valve (24) is fixed on cylinder connecting plate (21)。
6. according to the arbitrary described scale sawing device of Claims 1 to 5, it is characterized in that: the head at described dual piston cylinder (11) top is connected with air cylinder support (22), the head of bottom is connected with bearing block (20), support frame as described above (14) is fixed on leg (23) inner side, and described band key gear (16) is connected in tooth bar (18)。
7. scale sawing device according to claim 1, described transmission roller channel is made up of conveyor roller (1) and scale roller-way (2), and described scale roller-way (2) one end is provided with fixed ruler baffle (3), and other end arranged outside has saw blade (10)。
8. scale sawing device according to claim 7, described saw blade (10) both sides are each provided with a set of material pressing device respectively。
9. scale sawing device according to claim 5, described dual piston cylinder (11) is made up of upper single-piston cylinder (11-1) and the piston-cylinder that places an order (11-2)。
10. scale sawing device according to claim 1, described binder beam (13) is arranged below soft rubber。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610307080.4A CN105689794B (en) | 2016-05-11 | 2016-05-11 | A kind of scale sawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610307080.4A CN105689794B (en) | 2016-05-11 | 2016-05-11 | A kind of scale sawing device |
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| Publication Number | Publication Date |
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| CN105689794A true CN105689794A (en) | 2016-06-22 |
| CN105689794B CN105689794B (en) | 2018-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610307080.4A Expired - Fee Related CN105689794B (en) | 2016-05-11 | 2016-05-11 | A kind of scale sawing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107297538A (en) * | 2017-08-24 | 2017-10-27 | 中北大学 | A kind of sizing mechanism of reinforcing for sheet shearing |
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| JPH01127218A (en) * | 1987-11-10 | 1989-05-19 | Amada Co Ltd | Material feeder for cutting machine |
| CN201960208U (en) * | 2010-12-28 | 2011-09-07 | 中南大学 | Perpendicular auxiliary clamping device of gang saw machine |
| CN202291621U (en) * | 2011-08-15 | 2012-07-04 | 江门市威特铝业科技有限公司 | Device for reducing tailings for automatic sawing machine |
| CN102554343A (en) * | 2012-01-17 | 2012-07-11 | 太仓威格玛机械设备有限公司 | Full-automatic corner connector cutting device |
| CN204934723U (en) * | 2015-07-31 | 2016-01-06 | 天津银宝山新科技有限公司 | Monolateral cutting type tubing cutting machine |
| CN205183938U (en) * | 2015-11-26 | 2016-04-27 | 南昌市雄一铝业有限公司 | Semi -automatic aluminium cutting -off grinder |
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2016
- 2016-05-11 CN CN201610307080.4A patent/CN105689794B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01127218A (en) * | 1987-11-10 | 1989-05-19 | Amada Co Ltd | Material feeder for cutting machine |
| CN201960208U (en) * | 2010-12-28 | 2011-09-07 | 中南大学 | Perpendicular auxiliary clamping device of gang saw machine |
| CN202291621U (en) * | 2011-08-15 | 2012-07-04 | 江门市威特铝业科技有限公司 | Device for reducing tailings for automatic sawing machine |
| CN102554343A (en) * | 2012-01-17 | 2012-07-11 | 太仓威格玛机械设备有限公司 | Full-automatic corner connector cutting device |
| CN204934723U (en) * | 2015-07-31 | 2016-01-06 | 天津银宝山新科技有限公司 | Monolateral cutting type tubing cutting machine |
| CN205183938U (en) * | 2015-11-26 | 2016-04-27 | 南昌市雄一铝业有限公司 | Semi -automatic aluminium cutting -off grinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107297538A (en) * | 2017-08-24 | 2017-10-27 | 中北大学 | A kind of sizing mechanism of reinforcing for sheet shearing |
| CN107297538B (en) * | 2017-08-24 | 2018-11-27 | 中北大学 | A kind of sizing mechanism of reinforcing for sheet shearing |
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| CN105689794B (en) | 2018-06-26 |
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