CN111804979A - Cutting device for hardware product manufacturing - Google Patents
Cutting device for hardware product manufacturing Download PDFInfo
- Publication number
- CN111804979A CN111804979A CN202010527408.XA CN202010527408A CN111804979A CN 111804979 A CN111804979 A CN 111804979A CN 202010527408 A CN202010527408 A CN 202010527408A CN 111804979 A CN111804979 A CN 111804979A
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- Prior art keywords
- fixedly connected
- cutting device
- plate
- arc
- clamping plate
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- 238000005520 cutting process Methods 0.000 title claims abstract description 65
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 244000309464 bull Species 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 14
- 239000002184 metal Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 8
- 150000002739 metals Chemical class 0.000 abstract description 8
- 238000001125 extrusion Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 9
- 238000003825 pressing Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- XBWAZCLHZCFCGK-UHFFFAOYSA-N 7-chloro-1-methyl-5-phenyl-3,4-dihydro-2h-1,4-benzodiazepin-1-ium;chloride Chemical compound [Cl-].C12=CC(Cl)=CC=C2[NH+](C)CCN=C1C1=CC=CC=C1 XBWAZCLHZCFCGK-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/127—Means for tracking lines during arc welding or cutting
- B23K9/1272—Geometry oriented, e.g. beam optical trading
- B23K9/1274—Using non-contact, optical means, e.g. laser means
-
- 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
- B23D21/00—Machines or devices for shearing or cutting tubes
-
- 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
- B23D33/00—Accessories for shearing machines or shearing devices
- B23D33/02—Arrangements for holding, guiding, and/or feeding work during the operation
-
- 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
- B23D35/00—Tools for shearing machines or shearing devices; Holders or chucks for shearing tools
- B23D35/005—Adjusting the position of the cutting members
- B23D35/007—Adjusting the position of the cutting members for circular cutting members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Plasma & Fusion (AREA)
- Shearing Machines (AREA)
Abstract
The invention relates to the technical field of hardware pipe cutting, and discloses a cutting device for manufacturing hardware products, which comprises a control box, a top plate and a cutting device, wherein a threaded rod is arranged in the control box, a threaded sleeve rod is connected to the surface of the threaded rod in a threaded manner, one end of the threaded sleeve rod is movably connected with the top plate through a first bearing seat, one side of the upper surface of the top plate is fixedly connected with a first arc-shaped plate, one side of the surface of the first arc-shaped plate is connected with a fastening bolt in a threaded manner, through the arrangement of a first clamping plate, a second clamping plate and a pressure spring, a hardware pipe is inserted into the first clamping plate and the second clamping plate when the cutting device is used, the fastening bolt is further rotated, the first clamping plate is enabled to move to be attached to the hardware pipe, an extrusion force is applied to the second clamping plate, then the pressure spring applies an acting force to the second, thereby the effect of fixed five metals pipe has been reached.
Description
Technical Field
The invention relates to the technical field of hardware pipe fitting cutting, in particular to a cutting device for hardware product manufacturing.
Background
The traditional hardware parts are also called small hardware and hardware fittings. It refers to various metal appliances made of metals such as iron, steel, and aluminum by physical processing such as forging, rolling, and cutting. The hardware parts comprise mould hardware parts, mechanical hardware parts, daily hardware parts, show window hardware parts, ship hardware parts, building hardware parts, aerospace hardware parts, security articles and the like.
The traditional hardware pipe cutting device is mostly carried out by adopting a single cutting knife, not only is the efficiency low and the energy consumption large, but also the hardware pipe is not easy to fix during cutting, so that the hardware pipe is easy to roll during cutting, and therefore the invention provides the cutting device for manufacturing hardware products.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a cutting device for manufacturing hardware products.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the cutting device comprises a control box, a top plate and a cutting device, wherein a threaded rod is arranged in the control box, a threaded sleeve rod is in threaded connection with the surface of the threaded rod, one end of the threaded sleeve rod is movably connected with the top plate through a first bearing seat, a first arc-shaped plate is fixedly connected with one side of the upper surface of the top plate, a fastening bolt is in threaded connection with one side of the surface of the first arc-shaped plate, one end of the fastening bolt is movably connected with a first clamping plate through a second bearing seat, a second arc-shaped plate is fixedly connected with one side of the first arc-shaped plate, the inner side wall of the second arc-shaped plate is fixedly connected with a second clamping plate through a pressure spring, a bearing block is fixedly connected with the other side of the upper surface of the top plate, arc-shaped supporting plates are fixedly connected with the two sides of the upper surface, the bottom fixedly connected with bottom plate of control box one side, the upper surface of bottom plate is through first bracing piece fixedly connected with cutting device.
Preferably, cutting device includes box, motor and cutting blade, mount fixedly connected with motor is passed through to one side of box, the output swing joint of motor has the bull stick, the fixed surface of bull stick is connected with cutting blade, the one end swing joint of bull stick has third bearing frame.
Preferably, the upper surface of the connecting block is fixedly connected with a fixing rod, one end of the fixing rod is fixedly connected with a bearing strip, one side of the bearing strip is fixedly connected with a handle, and a handle sleeve is sleeved on the surface of the handle.
Preferably, the right bottom of the control box is provided with a hand lever, one side of the hand lever is movably connected with a transmission rod, one end of the transmission rod is movably connected with a transmission wheel, one side of the transmission wheel is meshed with a gear, and the bottom of the gear is movably connected with a fourth bearing seat through a second support rod.
Preferably, the four corners of the bottom of the top plate are fixedly connected with auxiliary limiting rods, and one end of each auxiliary limiting rod is inserted into a main limiting rod.
Preferably, the middle part of the upper surface of the bearing block is fixedly connected with a support rod, one end of the support rod is fixedly connected with an access board, and the upper surface of the access board is provided with anti-skid patterns.
Preferably, the four corners of the bottom of the control box are fixedly connected with foot rests, and the bottom of each foot rest is fixedly connected with a rubber bottom block.
Preferably, the inner side walls of the first clamping plate and the second clamping plate are fixedly connected with rubber anti-slip pads, and the thickness of each rubber anti-slip pad is five millimeters.
Preferably, the surface of the transmission rod is movably connected with a rotating shaft, and the bottom of the rotating shaft is movably connected with a third supporting rod.
(III) advantageous effects
Compared with the prior art, the invention provides a cutting device for manufacturing hardware products, which has the following beneficial effects:
1. this cutting device that hardware products made, through first splint, second splint and compression spring's setting, insert the hardware pipe in first splint and the second splint during use, and then rotatory fastening bolt, make first splint remove laminating hardware pipe, and apply the extrusion force to the second splint, then make compression spring exert the effort to the second splint, make the tight hardware pipe of clamp of first splint and second splint firmly, thereby the effect of fixed hardware pipe has been reached, through the arc layer board, the setting of connecting block and attachment strap, the hardware pipe inserts in first splint and the second splint during use, make the one end overlap joint of hardware pipe on the attachment strap, and then push down the handle, make the connecting block drive the clamp plate and push down, and the one end of fixed hardware pipe, thereby made things convenient for the staff to cut the hardware pipe.
2. This cutting device that hardware products made, through the threaded rod, screw thread loop bar and cutting device's collocation setting, with motor external power supply during the use, make the bull stick drive cutting blade and rotate, and then rotate the hand rocker, make the transfer line drive the drive wheel and rotate, the rotation of drive wheel, make the gear drive the threaded rod rotate, make the screw thread loop bar drive the roof decline then, the roof is at the in-process that descends, make five metals pipe and cutting blade contact, thereby the effect of cutting five metals pipe has been reached.
Drawings
FIG. 1 is a perspective view of a cutting device for manufacturing hardware products according to the present invention;
FIG. 2 is a structural exploded view of a cutting device for hardware manufacturing according to the present invention;
FIG. 3 is a schematic cross-sectional view of a control box of a cutting device for manufacturing hardware products according to the present invention;
FIG. 4 is a schematic cross-sectional view of a cutting device for manufacturing hardware products according to the present invention;
fig. 5 is a schematic structural diagram of a first clamping plate of a cutting device for manufacturing hardware products according to the present invention.
In the figure: 1. a console box; 2. a top plate; 3. a cutting device; 301. a box body; 302. a motor; 303. a cutting blade; 304. a fixed mount; 305. a rotating rod; 4. a threaded rod; 5. a threaded rod; 6. a first arc-shaped plate; 7. fastening a bolt; 8. a first splint; 9. a second arc-shaped plate; 10. a pressure spring; 11. a second splint; 12. a bearing block; 13. an arc-shaped supporting plate; 14. connecting blocks; 15. pressing a plate; 16. a base plate; 17. a first support bar; 18. carrying out strip bearing; 19. a handle; 20. a hand lever; 21. a transmission rod; 22. a driving wheel; 23. a gear; 24. a second support bar; 25. a limiting auxiliary rod; 26. a main limiting rod; 27. a butt strap; 28. a foot rest; 29. a rubber bottom block; 30. a rubber non-slip mat; 31. a rotating shaft; 32. and a third support bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a cutting device for manufacturing hardware products comprises a control box 1, a top plate 2 and a cutting device 3, wherein a threaded rod 4 is arranged inside the control box 1, a threaded sleeve rod 5 is connected to the surface of the threaded rod 4 in a threaded manner, one end of the threaded sleeve rod 5 is movably connected with the top plate 2 through a first bearing seat, one side of the upper surface of the top plate 2 is fixedly connected with a first arc-shaped plate 6, one side of the surface of the first arc-shaped plate 6 is connected with a fastening bolt 7 in a threaded manner, one end of the fastening bolt 7 is movably connected with a first clamping plate 8 through a second bearing seat, one side of the first arc-shaped plate 6 is fixedly connected with a second arc-shaped plate 9, the inner side wall of the second arc-shaped plate 9 is fixedly connected with a second clamping plate 11 through a pressure spring 10, the other side of the upper surface of the top plate, one end of the arc-shaped supporting plate 13 is movably connected with a connecting block 14 through a hinge, the bottom of the connecting block 14 is fixedly connected with a pressing plate 15, the bottom of one side of the control box 1 is fixedly connected with a bottom plate 16, the upper surface of the bottom plate 16 is fixedly connected with a cutting device 3 through a first supporting rod 17, the cutting device 3 comprises a box body 301, a motor 302 and a cutting blade 303, one side of the box body 301 is fixedly connected with the motor 302 through a fixing frame 304, the output end of the motor 302 is movably connected with a rotating rod 305, the surface of the rotating rod 305 is fixedly connected with the cutting blade 303, one end of the rotating rod 305 is movably connected with a third bearing seat, the upper surface of the connecting block 14 is fixedly connected with a fixing rod, one end of the fixing rod is fixedly connected with a bearing strip 18, one side of the bearing strip 18 is fixedly connected with a handle 19, the, one end swing joint of transfer line 21 has drive wheel 22, the meshing of one side of drive wheel 22 has gear 23, there is the fourth bearing seat bottom of gear 23 through second bracing piece 24 swing joint, equal fixedly connected with spacing sublance 25 in four corners department of roof 2 bottom, the one end of spacing sublance 25 is pegged graft and is had spacing mobile jib 26, the middle part fixedly connected with die-pin of bearer block 12 upper surface, the one end fixedly connected with attachment strap 27 of die-pin, anti-skidding decorative pattern has been seted up to the upper surface of attachment strap 27, the equal fixedly connected with foot rest 28 in four corners department of control box 1 bottom, the bottom fixedly connected with rubber bottom block 29 of foot rest 28, the equal fixedly connected with rubber slipmat 30 of inside wall of first splint 8 and second splint 11, the thickness of rubber slipmat 30 is five millimeters, the surface swing joint of transfer line 21 has pivot 31, the bottom swing joint of pivot 31 has third bracing piece.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
In the invention, the working steps of the device are as follows:
1. the first clamping plate 8, the second clamping plate 11 and the pressure spring 10 work, when a worker uses the device, a hardware pipe is inserted into the first clamping plate 8 and the second clamping plate 11, the fastening bolt 7 is further rotated, the first clamping plate 8 is moved to be attached to the hardware pipe, extrusion force is applied to the second clamping plate 11, then the pressure spring 10 applies acting force to the second clamping plate 11, the hardware pipe is firmly clamped by the first clamping plate 8 and the second clamping plate 11, and therefore the effect of fixing the hardware pipe is achieved;
2. when the metal pipe cutting device is used, a metal pipe is inserted into the first clamping plate 8 and the second clamping plate 11, one end of the metal pipe is lapped on the butt strap 27, the handle 19 is pressed downwards, the connecting block 14 drives the pressing plate 15 to press downwards, and one end of the metal pipe is fixed, so that a worker can conveniently cut the metal pipe;
3. threaded rod 4, screw loop bar 5 and cutting device 3's collocation work, during the use with motor 302 external power supply, make bull stick 305 drive cutting blade 303 and rotate, and then rotate hand rocker 20, make transfer line 21 drive wheel 22 and rotate, the rotation of drive wheel 22, make gear 23 drive threaded rod 4 and rotate, then make screw loop bar 5 drive roof 2 decline, roof 2 is at the in-process that descends, make five metals pipe and cutting blade 303 contact, thereby the effect of cutting five metals pipe has been reached.
In conclusion, according to the cutting device for manufacturing the hardware product, through the arrangement of the first clamping plate 8, the second clamping plate 11 and the pressure spring 10, when in use, the hardware pipe is inserted into the first clamping plate 8 and the second clamping plate 11, and then the fastening bolt 7 is rotated, so that the first clamping plate 8 is moved to be attached to the hardware pipe, and an extrusion force is applied to the second clamping plate 11, and then the pressure spring 10 applies an acting force to the second clamping plate 11, so that the hardware pipe is firmly clamped by the first clamping plate 8 and the second clamping plate 11, and the effect of fixing the hardware pipe is achieved, through the arrangement of the arc-shaped supporting plate 13, the connecting block 14 and the butt plate 27, the hardware pipe is inserted into the first clamping plate 8 and the second clamping plate 11 when in use, so that one end of the hardware pipe is lapped on the butt plate 27, and then the handle 19 is pressed downwards, so that the connecting block 14 drives the pressing plate 15 to be pressed downwards, and one end of the hardware pipe is, through threaded rod 4, screw loop bar 5 and cutting device 3's collocation setting, with motor 302 external power supply during the use, make bull stick 305 drive cutting blade 303 and rotate, and then rotate hand rocker 20, make transfer line 21 drive wheel 22 and rotate, the rotation of drive wheel 22, make gear 23 drive threaded rod 4 and rotate, then make screw loop bar 5 drive roof 2 decline, roof 2 is at the in-process that descends, make five metals pipe and cutting blade 303 contact, thereby the effect of cutting five metals pipe has been reached.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a cutting device that hardware products made, includes control box (1), roof (2) and cutting device (3), its characterized in that: the inner part of the control box (1) is provided with a threaded rod (4), the surface of the threaded rod (4) is in threaded connection with a threaded sleeve rod (5), one end of the threaded sleeve rod (5) is movably connected with a top plate (2) through a first bearing seat, one side of the upper surface of the top plate (2) is fixedly connected with a first arc-shaped plate (6), one side of the surface of the first arc-shaped plate (6) is in threaded connection with a fastening bolt (7), one end of the fastening bolt (7) is movably connected with a first clamping plate (8) through a second bearing seat, one side of the first arc-shaped plate (6) is fixedly connected with a second arc-shaped plate (9), the inner side wall of the second arc-shaped plate (9) is fixedly connected with a second clamping plate (11) through a pressure spring (10), the other side of the upper surface of the top plate (2) is fixedly connected with a bearing block (12), and arc-shaped supporting, the one end of arc layer board (13) has connecting block (14) through hinge swing joint, the bottom fixedly connected with clamp plate (15) of connecting block (14), bottom fixedly connected with bottom plate (16) of control box (1) one side, the upper surface of bottom plate (16) is through first bracing piece (17) fixedly connected with cutting device (3).
2. The cutting device for hardware products manufacturing of claim 1, characterized in that: cutting device (3) include box (301), motor (302) and cutting blade (303), one side of box (301) is through mount (304) fixedly connected with motor (302), the output swing joint of motor (302) has bull stick (305), the fixed surface of bull stick (305) is connected with cutting blade (303), the one end swing joint of bull stick (305) has third bearing frame.
3. The cutting device for hardware products manufacturing of claim 1, characterized in that: the upper surface fixed connection of connecting block (14) has the dead lever, strip (18) is accepted to the one end fixed connection of dead lever, accept one side fixed connection of strip (18) and have handle (19), the handle cover has been cup jointed on the surface of handle (19).
4. The cutting device for hardware products manufacturing of claim 1, characterized in that: the positive bottom of control box (1) is provided with hand rocker (20), one side swing joint of hand rocker (20) has transfer line (21), the one end swing joint of transfer line (21) has drive wheel (22), one side meshing of drive wheel (22) has gear (23), there is the fourth bearing seat bottom of gear (23) through second bracing piece (24) swing joint.
5. The cutting device for hardware products manufacturing of claim 1, characterized in that: the four corners of the bottom of the top plate (2) are fixedly connected with auxiliary limiting rods (25), and one end of each auxiliary limiting rod (25) is inserted into a main limiting rod (26).
6. The cutting device for hardware products manufacturing of claim 1, characterized in that: the middle part of the upper surface of the bearing block (12) is fixedly connected with a supporting rod, one end of the supporting rod is fixedly connected with an access board (27), and anti-skid patterns are arranged on the upper surface of the access board (27).
7. The cutting device for hardware products manufacturing of claim 1, characterized in that: all fixedly connected with foot rest (28) in the four corners department of control box (1) bottom, the bottom fixedly connected with rubber bottom block (29) of foot rest (28).
8. The cutting device for hardware products manufacturing of claim 1, characterized in that: the inner side walls of the first clamping plate (8) and the second clamping plate (11) are fixedly connected with rubber anti-slip pads (30), and the thickness of each rubber anti-slip pad (30) is five millimeters.
9. The cutting device for hardware products manufacturing of claim 1, characterized in that: the surface of the transmission rod (21) is movably connected with a rotating shaft (31), and the bottom of the rotating shaft (31) is movably connected with a third supporting rod (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010527408.XA CN111804979A (en) | 2020-06-11 | 2020-06-11 | Cutting device for hardware product manufacturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010527408.XA CN111804979A (en) | 2020-06-11 | 2020-06-11 | Cutting device for hardware product manufacturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111804979A true CN111804979A (en) | 2020-10-23 |
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ID=72846083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010527408.XA Pending CN111804979A (en) | 2020-06-11 | 2020-06-11 | Cutting device for hardware product manufacturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111804979A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112518368A (en) * | 2020-11-27 | 2021-03-19 | 湖南昌泰金属设备制造有限公司 | Fixing device for cutting metal pipe of hardware product |
-
2020
- 2020-06-11 CN CN202010527408.XA patent/CN111804979A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112518368A (en) * | 2020-11-27 | 2021-03-19 | 湖南昌泰金属设备制造有限公司 | Fixing device for cutting metal pipe of hardware product |
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Application publication date: 20201023 |