CN105290921A - Construction steel bar grinding device with safety warning - Google Patents
Construction steel bar grinding device with safety warning Download PDFInfo
- Publication number
- CN105290921A CN105290921A CN201510852073.8A CN201510852073A CN105290921A CN 105290921 A CN105290921 A CN 105290921A CN 201510852073 A CN201510852073 A CN 201510852073A CN 105290921 A CN105290921 A CN 105290921A
- Authority
- CN
- China
- Prior art keywords
- chip removal
- radome
- hole
- slide block
- sleeve member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/04—Protective covers for the grinding wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Aerials (AREA)
Abstract
The invention relates to a construction steel bar grinding device with safety warning. The construction steel bar grinding device comprises a rack (3) and a grinding wheel (31), wherein the grinding wheel (31) is rotationally mounted on a side plate of the rack (3) and coaxially connected with a big gear (9); the part, exposed out of an upper horizontal panel (30) of the rack (3), of the grinding wheel (31) is used for contacting with a construction steel bar (1) so as to execute grinding; the big gear (9) is meshed with a small gear (81) fixedly connected to a motor driving shaft (8) so as to be driven, the small gear (81) is also meshed with a right-side gear part (10) on a sleeve piece (7) with a rack so as to drive the sleeve piece (7) with the rack to slide up and down along a vertical guide rod (5).
Description
Technical field
The present invention relates to building machinery field, especially a kind of building iron sanding apparatus with security warning.
Background technology
In building field, often need to polish to reinforcing bar, such as, the rib of head or rusty stain are polished off, thus carry out additional strain sheet or be convenient to carry out the operations such as reinforcing bar knotting.
In the operating process that this reinforcing bar is polished, the flying chip produced due to the quick operation of grinding wheel easily produces danger to operator.And some current security mask measures are carried out often through manual operation.This mode is forgotten handling safety radome falls when operator and is easily caused potential safety hazard.Arrange special power-driven mechanism to detect and perform falling of this security mask cover, the increase of cost and the inconvenience of maintenance can be caused.
Summary of the invention
The object of the present invention is to provide a kind of building iron sanding apparatus with security warning, it can overcome defect of the prior art.
According to a kind of building iron sanding apparatus with security warning of the present invention, the grinding wheel be coaxially connected on the side plate comprising frame and be installed in rotation on described frame and with gear wheel, described grinding wheel is exposed to the part of the upper horizontal plane plate of described frame for contacting to perform polishing with building iron, described gear wheel engages with the pinion be connected on motor driving shaft thus is driven, described pinion also engages to drive the sleeve member of described band tooth bar to slide up and down along vertical direction guide rod with the right side tooth-strip part on the sleeve member of band tooth bar, the left side of the sleeve member of described band tooth bar is fixedly installed horizontal nose bar clicking section to be inserted in the horizontal poke hole in the vertical plate portion of barricade shield cover component slidably, described vertical plate portion is connected with the radome of vertical direction by level connection joint portion, thus described radome can be made to move downward and make lower end be inserted into inserting in the hole in described upper horizontal plane plate will perform the building iron shielding of polishing thus, the left side in described vertical plate portion is fixedly connected with guiding casting lug thereon in order to be slidably matched leading to described moving up and down of barricade shield cover component with the vertical rail groove in the left wallboard of described frame, the upper side of described guiding casting lug thereon is connected upwards stretched by described barricade shield cover component with the top plate of described frame by extension spring, the lower end of described vertical direction guide rod with can the roller slide block of horizontal slip in the base plate guide groove of described frame be fixedly connected with, upper end is fixedly connected with the bottom side of conehead slide block, the left side head of described conehead slide block is the taper with lower inclined plane and ramp, in order to coordinate with the trapezoidal groove of the correspondingly-shaped in the right flank being arranged on described vertical plate portion, described conehead slide block can horizontally slip being fixedly installed in the sliding chamber in the holder on described upper horizontal plane plate, and make head top, described left side be pressed on the right flank in described vertical plate portion by the Compress Spring in described sliding chamber, vertical lead is also fixedly installed in order to pass described level connection joint portion thus to lead to described moving up and down of barricade shield cover component between described top plate and described holder, described patchhole comprises the counterbore of upper end and is arranged on the chip removal through hole of the positive lower end of counterbore, described counterbore is communicated with to facilitate chip removal with chip removal through hole, described counterbore is in order to contact with the end of described radome, thus raising seal, the width of described chip removal through hole is less than the thickness of described radome, thus do not affect sealing when the end contact of described radome and counterbore, and after described radome moves up, the chip removal of described chip removal through hole can be utilized, frame below described chip removal through hole is installed with filings collecting chamber, being provided with in described filings collecting chamber can the crumb loading drawer of pull, described filings collecting chamber upper end is provided with crumb loading blower fan, described crumb loading fan inlet place is provided with dust lead pipeline, in order to the scrap of described chip removal through hole is focused in described filings collecting chamber, and utilize and can the crumb loading drawer of pull topple over, in described trapezoidal groove, contact-making switch is installed, described top plate is provided with warning lamp, be electrically connected by the telescopic wire that is connected between described contact-making switch with described warning lamp, described conehead slide block to slip in described trapezoidal groove and after contacting with described contact-making switch, described warning lamp has brightened, and prompting building iron is just in conductively-closed and in polishing.
Wherein, when original state be described barricade shield cover component be in upper position the exposed portion of described grinding wheel is opened wide time, the described building iron be polished is placed near the described exposed portion of described grinding wheel, and now, head top, described left side is pressed on described right flank; After motor powers on, described pinion drives the sleeve member of described band tooth bar to move downward, thus drive described barricade shield cover component to overcome the elastic force of described extension spring by described horizontal nose bar clicking section and move downward, when described left side head slips into after in described trapezoidal groove, described conehead slide block drives the sleeve member of described band tooth bar to depart to left movement and the engaging of described pinion under the effect of described Compress Spring; When needs stop polishing work, by will the left side of described guiding casting lug thereon be fixedly installed on and stretch out in the operation shank upward sliding of described left wallboard and make described motor power-off and and then described trapezoidal groove departed from the cooperation of described left side head and again makes to be with the described right side tooth-strip part of the sleeve member of tooth bar and engaging of described pinion.
Pass through such scheme, can engage and the rack sleeve parts that can depart from driven wheel owing to being provided with, its starting stage that can power at motor and automatically drive security mask cover to fall, and to automatically disengage afterwards with driven wheel engage thus the continuation not affecting driving pinion runs.And, when being lifted by radome by motor auto-breaking, thus potential safety hazard can be avoided by setting operation handle.Thus, can be convenient to reinforcing bar loading or unloading when safety guard is opened, machining area can be shielded in process, thus improve the security performance of equipment and do not increase the link such as power drive and detection when the function that synchronous execution safety guard falls, thus reduce equipment cost and be convenient to plant maintenance.Whole device can significantly improve the security performance of operation and stable and reliable operation.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of building iron sanding apparatus with security warning of the present invention.
Detailed description of the invention
Below in conjunction with Fig. 1, the present invention is described in detail.
According to a kind of building iron sanding apparatus with security warning of embodiment, on the side plate comprising frame 3 and be installed in rotation on described frame 3 and the grinding wheel 31 that be connected coaxial with gear wheel 9, described grinding wheel 31 is exposed to the part of the upper horizontal plane plate 30 of described frame 3 for contacting to perform polishing with building iron 1, described gear wheel 9 engages with the pinion 81 be connected on motor driving shaft 8 thus is driven, described pinion 81 also engages to drive the sleeve member 7 of described band tooth bar to slide up and down along vertical direction guide rod 5 with the right side tooth-strip part 10 on the sleeve member 7 of band tooth bar, the left side of the sleeve member 7 of described band tooth bar is fixedly installed horizontal nose bar clicking section 6 to be inserted in the horizontal poke hole 11 in the vertical plate portion 14 of barricade shield cover component 33 slidably, described vertical plate portion 14 is connected with the radome 20 of vertical direction by level connection joint portion 16, thus described radome 20 can be made to move downward and thus the building iron 1 performing polishing is shielded in the patchhole 19 making lower end be inserted in described upper horizontal plane plate 30, the left side in described vertical plate portion 14 is fixedly connected with guiding casting lug thereon 23 in order to be slidably matched leading to described moving up and down of barricade shield cover component 33 with the vertical rail groove 340 in the left wallboard 34 of described frame 3, the upper side of described guiding casting lug thereon 23 is connected upwards stretched by described barricade shield cover component 33 by extension spring 21 with the top plate 35 of described frame 3, the lower end of described vertical direction guide rod 5 with can the roller slide block 4 of horizontal slip in the base plate guide groove 38 of described frame 3 be fixedly connected with, upper end is fixedly connected with the bottom side of conehead slide block 13, the left side head 12 of described conehead slide block 13 is for having the taper of lower inclined plane and ramp, in order to coordinate with the trapezoidal groove 15 of the correspondingly-shaped in the right flank being arranged on described vertical plate portion 14, described conehead slide block 13 can horizontally slip being fixedly installed in the sliding chamber 170 in the holder 17 on described upper horizontal plane plate 30, and make head top, described left side be pressed on the right flank in described vertical plate portion 14 by the Compress Spring 18 in described sliding chamber 170, vertical lead 171 is also fixedly installed in order to pass described level connection joint portion 16 thus to lead to described moving up and down of barricade shield cover component 33 between described top plate 35 and described holder 17, described patchhole 19 comprises the counterbore 190 of upper end and is arranged on the chip removal through hole 191 of the positive lower end of counterbore 301, described counterbore 301 is communicated with to facilitate chip removal with chip removal through hole 191, described counterbore 190 is in order to contact with the end of described radome 20, thus raising seal, the width of described chip removal through hole 191 is less than the thickness of described radome 20, thus do not affect sealing when the end contact of described radome 20 with counterbore 190, and after described radome 20 moves up, the chip removal of described chip removal through hole 191 can be utilized, frame 3 below described chip removal through hole 191 is installed with filings collecting chamber 60, being provided with in described filings collecting chamber 60 can the crumb loading drawer 61 of pull, described filings collecting chamber 60 upper end is provided with crumb loading blower fan 62, described crumb loading blower fan 62 import department is provided with dust lead pipeline 63, in order to the scrap at described chip removal through hole 191 place is focused in described filings collecting chamber 60, and utilize and can the crumb loading drawer 61 of pull topple over, in described trapezoidal groove 15, contact-making switch 150 is installed, described top plate 35 is provided with warning lamp 151, be electrically connected by the telescopic wire that is connected between described contact-making switch 150 with described warning lamp 151, described conehead slide block 13 to slip in described trapezoidal groove 15 and after contacting with described contact-making switch 150, described warning lamp 151 has brightened, and prompting building iron 1 is just in conductively-closed and in polishing.
Wherein, valuably, when original state be described barricade shield cover component 33 be in upper position the exposed portion of described grinding wheel 31 is opened wide time, the described building iron 1 be polished is placed near the described exposed portion of described grinding wheel 31, now, head 12 top in described left side is pressed on described right flank; After motor powers on, described pinion 81 drives the sleeve member 7 of described band tooth bar to move downward, thus drive described barricade shield cover component 33 to overcome the elastic force of described extension spring 21 by described horizontal nose bar clicking section 6 and move downward, when described left side head 12 slips into after in described trapezoidal groove 15, described conehead slide block 13 drives the sleeve member 7 of described band tooth bar to depart to left movement and the engaging of described pinion 81 under the effect of described Compress Spring 18; When needs stop polishing work, by will the left side of described guiding casting lug thereon 23 be fixedly installed on and stretch out in operation shank 22 upward sliding of described left wallboard 34 and make described motor power-off and and then described trapezoidal groove 15 departed from the cooperation of described left side head 12 and again make to be with the described right side tooth-strip part 10 of the sleeve member 7 of tooth bar and engaging of described pinion 81.
Alternatively, the cut-off switch of described motor can link with described operation shank 22, and its mode can adopt various means well known in the art, such as linked switch or trigger-type contact switch etc.
Can engage and the rack sleeve parts that can depart from driven wheel owing to being provided with, its starting stage that can power at motor and automatically drive security mask cover to fall, and to automatically disengage afterwards with driven wheel engage thus the continuation not affecting driving pinion runs.And, when being lifted by radome by motor auto-breaking, thus potential safety hazard can be avoided by setting operation handle.Thus, can be convenient to reinforcing bar loading or unloading when safety guard is opened, machining area can be shielded in process, thus improve the security performance of equipment and do not increase the link such as power drive and detection when the function that synchronous execution safety guard falls, thus reduce equipment cost and be convenient to plant maintenance.
By with upper type, those skilled in the art can make various change according to mode of operation within the scope of the invention.
Claims (2)
1. the building iron sanding apparatus with security warning, on the side plate comprising frame (3) and be installed in rotation on described frame (3) and the grinding wheel (31) that be connected coaxial with gear wheel (9), the part that described grinding wheel (31) is exposed to the upper horizontal plane plate (30) of described frame (3) is used for contacting to perform polishing with building iron (1), described gear wheel (9) engages with the pinion (81) be connected on motor driving shaft (8) thus is driven, described pinion (81) also engages to drive the sleeve member (7) of described band tooth bar to slide up and down along vertical direction guide rod (5) with the right side tooth-strip part (10) on the sleeve member (7) of band tooth bar, the left side of the sleeve member (7) of described band tooth bar is fixedly installed horizontal nose bar clicking section (6) to be inserted in the horizontal poke hole (11) in the vertical plate portion (14) of barricade shield cover component (33) slidably, described vertical plate portion (14) is connected with the radome (20) of vertical direction by level connection joint portion (16), thus described radome (20) can be made to move downward and in the patchhole (19) making lower end be inserted in described upper horizontal plane plate (30), will perform building iron (1) shielding of polishing thus, the left side of described vertical plate portion (14) is fixedly connected with guiding casting lug thereon (23) in order to be slidably matched leading to described moving up and down of barricade shield cover component (33) with the vertical rail groove (340) in the left wallboard (34) of described frame (3), the upper side of described guiding casting lug thereon (23) is connected described barricade shield cover component (33) upwards to be stretched by extension spring (21) with the top plate (35) of described frame (3), the lower end of described vertical direction guide rod (5) with can be fixedly connected with at the roller slide block (4) of horizontal slip in the base plate guide groove (38) of described frame (3), upper end is fixedly connected with the bottom side of conehead slide block (13), the left side head (12) of described conehead slide block (13) is for having the taper of lower inclined plane and ramp, in order to coordinate with the trapezoidal groove (15) of the correspondingly-shaped in the right flank being arranged on described vertical plate portion (14), described conehead slide block (13) can horizontally slip being fixedly installed in the sliding chamber (170) in the holder (17) on described upper horizontal plane plate (30), and make head top, described left side be pressed on the right flank of described vertical plate portion (14) by the Compress Spring (18) in described sliding chamber (170), vertical lead (171) is also fixedly installed in order to pass described level connection joint portion (16) thus to lead to described moving up and down of barricade shield cover component (33) between described top plate (35) and described holder (17), described patchhole (19) comprises the counterbore (190) of upper end and is arranged on the chip removal through hole (191) of the positive lower end of counterbore (301), described counterbore (301) is communicated with to facilitate chip removal with chip removal through hole (191), described counterbore (190) is in order to contact with the end of described radome (20), thus raising seal, the width of described chip removal through hole (191) is less than the thickness of described radome (20), thus do not affect sealing when the end contact of described radome (20) and counterbore (190), and after described radome (20) moves up, the chip removal of described chip removal through hole (191) can be utilized, the frame (3) of described chip removal through hole (191) below is installed with filings collecting chamber (60), being provided with in described filings collecting chamber (60) can the crumb loading drawer (61) of pull, described filings collecting chamber (60) upper end is provided with crumb loading blower fan (62), described crumb loading blower fan (62) import department is provided with dust lead pipeline (63), in order to the scrap at described chip removal through hole (191) place is focused in described filings collecting chamber (60), and utilize and can the crumb loading drawer (61) of pull topple over, contact-making switch (150) is installed in described trapezoidal groove (15), described top plate (35) is provided with warning lamp (151), be electrically connected by the telescopic wire that is connected between described contact-making switch (150) with described warning lamp (151), described conehead slide block (13) to be slipped in described trapezoidal groove (15) and after contacting with described contact-making switch (150), described warning lamp (151) has brightened, and prompting building iron (1) is just in conductively-closed and in polishing.
2. a kind of building iron sanding apparatus with security warning as claimed in claim 1, wherein, when original state be described barricade shield cover component (33) be in upper position the exposed portion of described grinding wheel (31) is opened wide time, the described building iron (1) be polished is placed near the described exposed portion of described grinding wheel (31), now, described left side head (12) top is pressed on described right flank; After motor powers on, described pinion (81) drives the sleeve member (7) of described band tooth bar to move downward, thus drive described barricade shield cover component (33) to overcome the elastic force of described extension spring (21) by described horizontal nose bar clicking section (6) and move downward, when described left side head (12) is slipped into after in described trapezoidal groove (15), described conehead slide block (13) drives the sleeve member (7) of described band tooth bar to depart to left movement and the engaging of described pinion (81) under the effect of described Compress Spring (18); When needs stop polishing work, by will the left side of described guiding casting lug thereon (23) be fixedly installed on and stretch out in operation shank (22) upward sliding of described left wallboard (34) and make described motor power-off and and then described trapezoidal groove (15) departed from the cooperation in described left side head (12) and again makes to be with described right side tooth-strip part (10) of the sleeve member of tooth bar (7) and engaging of described pinion (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510852073.8A CN105290921A (en) | 2015-11-30 | 2015-11-30 | Construction steel bar grinding device with safety warning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510852073.8A CN105290921A (en) | 2015-11-30 | 2015-11-30 | Construction steel bar grinding device with safety warning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105290921A true CN105290921A (en) | 2016-02-03 |
Family
ID=55189093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510852073.8A Pending CN105290921A (en) | 2015-11-30 | 2015-11-30 | Construction steel bar grinding device with safety warning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105290921A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107081639A (en) * | 2017-06-08 | 2017-08-22 | 重庆帅能机床制造有限公司 | A kind of lathe feed screw means for correcting |
| CN112388490A (en) * | 2020-11-25 | 2021-02-23 | 德清泰鑫金属制品有限公司 | Iron and steel surface rust removal device for waste iron and steel treatment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1753590A (en) * | 1927-12-27 | 1930-04-08 | Covel Hanchett Co | Workholder for bar-grinding machines |
| CN2524010Y (en) * | 2002-01-19 | 2002-12-04 | 姚亮 | Lever-type stepless variable-speed devices |
| CN1946515A (en) * | 2004-04-21 | 2007-04-11 | 罗伯特·博世有限公司 | Dust collecting container for a hand-held machine tool |
| CN201110330Y (en) * | 2007-10-18 | 2008-09-03 | 王凤军 | Tubular electric machine totally-enclosed clutch |
| CN202028993U (en) * | 2011-03-03 | 2011-11-09 | 浙江翊蓝铝业有限公司 | Grinding device for aluminum pipe of automotive air conditioner |
| CN202726742U (en) * | 2012-08-16 | 2013-02-13 | 湖南海捷精密工业有限公司 | Adjustable grinding wheel protective cover |
| US20140174215A1 (en) * | 2012-04-17 | 2014-06-26 | Ian J. Dow | Apparatus and method for providing a manual override to shift by wire actuator |
| CN203918663U (en) * | 2014-03-12 | 2014-11-05 | 四川西林石油物资装备有限公司 | Annular workpieces sanding apparatus |
-
2015
- 2015-11-30 CN CN201510852073.8A patent/CN105290921A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1753590A (en) * | 1927-12-27 | 1930-04-08 | Covel Hanchett Co | Workholder for bar-grinding machines |
| CN2524010Y (en) * | 2002-01-19 | 2002-12-04 | 姚亮 | Lever-type stepless variable-speed devices |
| CN1946515A (en) * | 2004-04-21 | 2007-04-11 | 罗伯特·博世有限公司 | Dust collecting container for a hand-held machine tool |
| CN201110330Y (en) * | 2007-10-18 | 2008-09-03 | 王凤军 | Tubular electric machine totally-enclosed clutch |
| CN202028993U (en) * | 2011-03-03 | 2011-11-09 | 浙江翊蓝铝业有限公司 | Grinding device for aluminum pipe of automotive air conditioner |
| US20140174215A1 (en) * | 2012-04-17 | 2014-06-26 | Ian J. Dow | Apparatus and method for providing a manual override to shift by wire actuator |
| CN202726742U (en) * | 2012-08-16 | 2013-02-13 | 湖南海捷精密工业有限公司 | Adjustable grinding wheel protective cover |
| CN203918663U (en) * | 2014-03-12 | 2014-11-05 | 四川西林石油物资装备有限公司 | Annular workpieces sanding apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107081639A (en) * | 2017-06-08 | 2017-08-22 | 重庆帅能机床制造有限公司 | A kind of lathe feed screw means for correcting |
| CN112388490A (en) * | 2020-11-25 | 2021-02-23 | 德清泰鑫金属制品有限公司 | Iron and steel surface rust removal device for waste iron and steel treatment |
| CN112388490B (en) * | 2020-11-25 | 2022-09-30 | 德清泰鑫金属制品有限公司 | Iron and steel surface rust removal device for waste iron and steel treatment |
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Application publication date: 20160203 |
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| RJ01 | Rejection of invention patent application after publication |