CN112123082A - A polishing saw limit device that is used for panel for fire hose box production line - Google Patents
A polishing saw limit device that is used for panel for fire hose box production line Download PDFInfo
- Publication number
- CN112123082A CN112123082A CN202011035408.4A CN202011035408A CN112123082A CN 112123082 A CN112123082 A CN 112123082A CN 202011035408 A CN202011035408 A CN 202011035408A CN 112123082 A CN112123082 A CN 112123082A
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- Prior art keywords
- polishing
- plate
- base
- production line
- fire
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Classifications
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- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
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- 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
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
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- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/047—Grinding heads for working on plane surfaces
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- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- 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
- B24B47/00—Drives or gearings; Equipment therefor
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- 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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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- 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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a polishing and trimming device for a plate for a fire-fighting box body production line, which comprises a base, a positioning plate, a clamping piece, a sliding seat, a translation piece, a polishing motor, a self-adjusting piece and a polishing grinding wheel, wherein the self-adjusting piece comprises an adjusting seat, a telescopic rod, a clamping block, a clamping groove and a compression spring. The invention has the following beneficial effects: set up from regulating part, elasticity through compression spring to the fixture block is supported, make the terminal surface of burnishing wheel can remove pasting the panel tip, thereby realized that the burnishing wheel can adapt to the uneven panel of tip and polish, and the work efficiency is improved, it comprises pivot to set up the clamping piece, the nut seat, the connecting rod, the mounting, the rotor arm, support tight post, through the rotation of pivot, make two connecting rods stimulate two rotor arms respectively and rotate, make two support tight post synchronous clamping panel, avoid the panel to press from both sides tight in-process, because the both sides atress is asynchronous and produce the phenomenon of upwarping.
Description
Technical Field
The invention relates to the field of polishing equipment, in particular to a polishing and edge sawing device for a plate for a fire-fighting box body production line.
Background
The fire-fighting box is a box for storing fire hydrants, is used for extinguishing fire when a fire breaks out, is matched with a water hose, a water gun and the like, and has various installation modes of open installation, concealed installation and semi-concealed installation.
The fire-fighting box body is generally a sheet metal part, when the sheet metal part is processed, the cut edge is generally cut and sawed, then the sawed edge is polished, and then bending and the like are performed, the cut edge part is generally burr and rough edge are large, and polishing is needed, at present, a worker mainly holds a polisher which is used for polishing and polishing along the cut edge part, the labor intensity of workers is increased, the safety factor is low, and safety accidents are easy to occur, therefore, in the prior art, polishing equipment replacing manpower is provided, the polishing equipment does not need to be operated manually basically by workers, the labor intensity is greatly reduced, and the potential safety hazards are reduced, but in the prior art, the polishing equipment generally drives a polishing grinding wheel to rotate by a polishing motor, then the polishing motor moves (or plates move horizontally), the distance between the polishing grinding wheel and the edge of the plate is fixed, so that when the end of the plate is cut, large deviation is generated, the end is not neat, the position of the polishing grinding wheel is fixed, partial area is possibly not polished or some areas are protruded when the end of the plate is polished, the abrasion loss of the polishing grinding wheel is large, and the plate can be polished only by manual operation of workers, so that the problem of low working efficiency is caused.
In order to solve the problems, the polishing and edge sawing device for the plate for the fire-fighting box body production line is provided.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide a polishing and trimming device for a plate for a fire-fighting box body production line, and in order to solve the technical problem, the invention provides the following technical scheme:
the invention provides a polishing edge sawing device for a plate for a fire-fighting box body production line, which comprises a base arranged on a bracket, wherein the base is provided with a positioning plate for the edge sawing end of the plate to be polished to lie flat, the base is also provided with a clamping piece for clamping and mounting the edge to be polished of the plate on the positioning plate, the base is provided with a sliding seat sliding along the length direction of the positioning plate, the sliding seat is driven by a translation piece to move horizontally, a polishing motor is horizontally arranged on the sliding seat, the polishing motor is connected with a self-adjusting piece in a driving way, a polishing grinding wheel for polishing the edge sawing of the plate is arranged on the self-adjusting piece, the self-adjusting piece is used for enabling the polishing grinding wheel to have a moving stroke floating along the axial direction of the polishing grinding wheel, the end face of the polishing grinding wheel can abut against the edge sawing of the plate, the polishing device is characterized in that a telescopic rod which is in sliding fit with the adjusting seat and penetrates out of the adjusting seat is coaxially arranged on the adjusting seat, the polishing grinding wheel is coaxially and fixedly connected to one end, penetrating out of the adjusting seat, of the telescopic rod, a clamping block with a rectangular cross section is arranged at the other end of the telescopic rod, correspondingly, a clamping groove which is used for clamping the clamping block and can freely slide along the axial direction of the adjusting seat is arranged in the adjusting seat, a compression spring is horizontally arranged in the clamping groove, and two ends of the compression spring in the elastic direction respectively abut against the.
Preferably, one side of the base, which is far away from the polishing grinding wheel, is provided with a supporting plate which is inclined, bent upwards and then bent horizontally, the top surface of the supporting plate is flush with the top surface of the positioning plate, the supporting plate is provided with two limiting plates which correspond to the two ends of the positioning plate in the length direction respectively, and the transverse distance between the two limiting plates is matched with the size of the plate.
Preferably, the bottom of the sliding seat is provided with a convex block, and correspondingly, the base is provided with a locking groove for clamping the convex block and capable of freely sliding along the length direction of the positioning plate.
Preferably, the translation piece comprises a ball screw horizontally and rotatably connected to the base, a screw nut is embedded in the sliding seat, the screw nut is sleeved on the ball screw in a threaded manner, and the ball screw is driven to rotate by a servo motor installed on the base.
Preferably, the clamping piece comprises a rotating shaft which is horizontally and rotatably connected to the positioning plate and two ends of which penetrate out of the positioning plate, the two ends of the rotating shaft in the length direction are respectively provided with a first screw rod part and a second screw rod part with opposite screw thread turning directions, the first screw rod part and the second screw rod part are respectively sleeved with a nut seat in a threaded manner, two opposite ends of the base are respectively and vertically provided with a fixing part, the upper end parts of the two fixing parts are respectively hinged with a rotating arm, the two rotating arms are respectively hinged with a connecting rod, the two connecting rods are respectively correspondingly hinged with the two nut seats, one end of the rotating arm, which is far away from the fixed part, is provided with a tightly supporting column for tightly supporting the top surface of the plate, when the rotating shaft rotates, the two nut seats are driven to be relatively far away, so that the two connecting rods respectively pull the two rotating arms to rotate downwards, and the lower end faces of the two abutting columns abut against the surface of a plate.
Preferably, the rotating shaft is driven to rotate by a speed reduction motor mounted on one of the fixing members.
Preferably, a plurality of ratchets are arranged on the bottom surface of the abutting column.
Compared with the prior art, the invention has the following beneficial effects: set up from regulating part, elasticity through compression spring to the fixture block is supported, make the terminal surface of burnishing wheel can remove pasting the panel tip, thereby realized that the burnishing wheel can adapt to the uneven panel of tip and polish, and the work efficiency is improved, it comprises pivot to set up the clamping piece, the nut seat, the connecting rod, the mounting, the rotor arm, support tight post, through the rotation of pivot, make two connecting rods stimulate two rotor arms respectively and rotate, make two support tight post synchronous clamping panel, avoid the panel to press from both sides tight in-process, because the both sides atress is asynchronous and produce the phenomenon of upwarping.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic perspective view of the final assembly of a polishing and trimming device for panels used in a fire-fighting box production line according to the present invention;
FIG. 2 is a side view angle schematic of the three-dimensional structure of FIG. 1;
FIG. 3 is a schematic bottom view of the three-dimensional structure of FIG. 1;
FIG. 4 is a partially cut-away, schematic perspective view of the self-adjusting part of the present invention;
in the figure: 1-base, 2-locking groove, 3-lug, 4-ball screw, 5-sliding seat, 6-servo motor, 7-polishing motor, 8-adjusting seat, 9-polishing grinding wheel, 10-tightening column, 11-positioning plate, 12-speed reducing motor, 13-fixing piece, 14-rotating arm, 15-supporting plate, 16-limiting plate, 17-connecting rod, 18-nut seat, 19-first screw rod part, 20-telescopic rod, 21-clamping block, 22-clamping groove, 23-compression spring and 24-second screw rod part.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Examples
As shown in fig. 1-4, a polishing edge-sawing device for panels used in fire-fighting box production line comprises a base 1 mounted on a support, a positioning plate 11 for placing the edge-sawing end of the panel to be polished flat is arranged on the base 1, a clamping member for clamping and mounting the end to be polished of the panel on the positioning plate 11 is further arranged on the base 1, a sliding seat 5 sliding along the length direction of the positioning plate 11 is arranged on the base 1, the sliding seat 5 is driven by a translation member to move horizontally, a polishing motor 7 is horizontally arranged on the sliding seat 5, a self-adjusting member is connected to the polishing motor 7 in a driving manner, a polishing grinding wheel 9 for polishing the edge of the panel is arranged on the self-adjusting member, the self-adjusting member is used for enabling the polishing grinding wheel 9 to have a moving stroke floating along the axial direction thereof, so that the end face of the polishing grinding wheel 9 can abut, the self-adjusting part comprises an adjusting seat 8 which is connected to the polishing motor 7 in a driving mode, a telescopic rod 20 which penetrates out of the adjusting seat 8 in a sliding mode is coaxially arranged on the adjusting seat 8, the polishing grinding wheel 9 is coaxially and fixedly connected to one end, penetrating out of the adjusting seat 8, of the telescopic rod 20, a clamping block 21 with a rectangular cross section is arranged at the other end of the telescopic rod 20, correspondingly, a clamping groove 22 which is used for clamping the clamping block 21 and can freely slide along the axial direction of the adjusting seat 8 is formed in the adjusting seat 8, a compression spring 23 is horizontally arranged in the clamping groove 22, and two ends of the elastic force direction of the compression spring 23 respectively abut against the inner side walls of.
In this embodiment, as preferably, one side that burnishing wheel 9 was kept away from to base 1 is equipped with the layer board 15 that earlier slope upwards bent back level and bend, layer board 15 top surface flushes with 11 top surfaces of locating plate, be equipped with two limiting plate 16 that correspond 11 length direction both ends of locating plate respectively on the layer board 15, two the horizontal interval and the panel size phase-match of limiting plate 16 carry on spacingly to panel through two limiting plate 16, avoid the in-process of polishing, panel produces horizontal drunkenness, influences the tip quality of polishing.
In this embodiment, preferably, the bottom of the sliding seat 5 is provided with a protrusion 3, and correspondingly, the base 1 is provided with a locking groove 2 for the protrusion 3 to engage with and freely slide along the length direction of the positioning plate 11, and the protrusion 3 slides in the locking groove 2, so that the sliding seat 5 is slidably connected to the base 1.
In the present embodiment, the translation member preferably includes a ball screw 4 horizontally and rotatably connected to the base 1, a screw nut (not shown) is embedded in the sliding seat 5, the screw nut is threadedly sleeved on the ball screw 4, and the ball screw 4 is driven to rotate by a servo motor 6 mounted on the base 1.
In this embodiment, preferably, the clamping member includes a rotating shaft horizontally and rotatably connected to the positioning plate 11, and two ends of the rotating shaft penetrate through the positioning plate 11, two ends of the rotating shaft in the length direction are respectively provided with a first screw rod part 19 and a second screw rod part 24 with opposite screw thread turning directions, the first screw rod part 19 and the second screw rod part 24 are respectively and threadedly sleeved with a nut seat 18, two opposite ends of the base 1 are respectively and vertically provided with a fixing part 13, upper end parts of the two fixing parts 13 are respectively hinged with a rotating arm 14, the two rotating arms 14 are respectively hinged with a connecting rod 17, the two connecting rods 17 are respectively and correspondingly hinged with the two nut seats 18, one end of the rotating arm 14, which is far away from the fixing part 13, is provided with a tightening post 10 for tightening the top surface of the plate, when the rotating shaft rotates, the two nut seats 18 are driven to be relatively far away, so that the two connecting, and the lower end faces of the two abutting columns 10 abut against the surface of the plate.
In the present embodiment, it is preferable that the rotation shaft is rotated by a reduction motor 12 mounted on one of the fixing members 13, and the rotation shaft is rotated by the reduction motor 12, so that it is not necessary to rotate the rotation shaft by manpower, thereby reducing labor intensity.
In this embodiment, preferably, the bottom surface of the tightening column 10 is provided with a plurality of ratchets, and the ratchets are arranged, so that the tightening force between the tightening column 10 and the surface of the plate can be increased, and the pressing effect of the plate can be improved.
The working principle of the invention when in use is as follows: one end of a cut plate is laid on a positioning plate 11, an external power supply is switched on, a speed reducing motor 12 is started, the speed reducing motor 12 drives a rotating shaft to rotate, two nut seats 18 are screwed on a first screw rod part 19 and a second screw rod part 24 respectively, and then the two nut seats 18 are driven to be relatively far away, two connecting rods 17 respectively drive two rotating arms 14 to rotate downwards, so that two abutting columns 10 abut against the surface of the plate, the plate is in a clamping state at the moment, the other end of the plate is supported by a supporting plate 15, the saw edge of the plate is in the working range of a polishing grinding wheel 9, then a polishing motor 7 and a servo motor 6 are started, the servo motor 6 and the polishing motor 7 respectively drive a ball screw rod 4 and an adjusting seat 8 to rotate, so that the adjusting seat 8 moves transversely and rotates simultaneously, and the polishing grinding wheel 9 polishes the end part of the plate, in the process of polishing, if the panel tip is uneven, the tip drives compression spring to the effort of burnishing wheel 9 this moment, and then makes burnishing wheel 9 have the space that floats, makes the 9 terminal surfaces of burnishing wheel can paste the tip edge of tight panel all the time simultaneously, makes like this even the panel tip produces certain range crooked, and burnishing wheel 9 can polish the panel tip better all the time.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a polishing saw limit device that is used for panel for fire hose box production line which characterized in that: the polishing device comprises a base (1) arranged on a support, wherein a positioning plate (11) for enabling a sawn edge end of a plate to be polished to lie is arranged on the base (1), a clamping piece for clamping and installing the end of the plate to be polished on the positioning plate (11) is further arranged on the base (1), a sliding seat (5) sliding along the length direction of the positioning plate (11) is arranged on the base (1), the sliding seat (5) is driven by a translation piece to move horizontally, a polishing motor (7) is horizontally arranged on the sliding seat, a self-adjusting piece is connected to the polishing motor (7) in a driving mode, a polishing grinding wheel (9) used for polishing a sawn edge of the plate is arranged on the self-adjusting piece, the self-adjusting piece is used for enabling the polishing grinding wheel (9) to have a moving stroke floating along the axial direction of the polishing grinding wheel (9), the end face of the polishing grinding wheel (9) can abut against the sawn edge of the, adjust seat (8) and go up coaxial being equipped with smooth telescopic link (20) of wearing out it that matches, the coaxial rigid coupling of burnishing wheel (9) is on one end of adjusting seat (8) is worn out in telescopic link (20), telescopic link (20) other end is equipped with fixture block (21) that the cross-section becomes the rectangle, and is corresponding, be equipped with in adjusting seat (8) and supply fixture block (21) block, and can follow and adjust seat (8) axial free gliding draw-in groove (22), horizontal installation is equipped with compression spring (23) in draw-in groove (22), compression spring (23) elasticity direction both ends support the inside wall of fixture block (21) and draw-in groove (22) respectively.
2. The polishing and trimming device for the plate for the fire-fighting box body production line as recited in claim 1, wherein: one side of the base (1) far away from the polishing grinding wheel (9) is provided with a supporting plate (15) which is inclined firstly and bent upwards and then bent horizontally, the top surface of the supporting plate (15) is flushed with the top surface of the positioning plate (11), two limiting plates (16) which correspond to the two ends of the positioning plate (11) in the length direction are arranged on the supporting plate (15), and the transverse distance between the two limiting plates (16) is matched with the size of the plate.
3. The polishing and trimming device for the plate for the fire-fighting box body production line as recited in claim 1, wherein: the bottom of the sliding seat (5) is provided with a convex block (3), correspondingly, the base (1) is provided with a locking groove (2) which is used for clamping the convex block (3) and can freely slide along the length direction of the positioning plate (11).
4. The polishing and trimming device for the plate for the fire-fighting box body production line as recited in claim 1, wherein: the translation piece comprises a ball screw (4) which is horizontally and rotatably connected to the base (1), a screw nut is embedded in the sliding seat (5), the screw nut is sleeved on the ball screw (4) in a threaded mode, and the ball screw (4) is driven to rotate by a servo motor (6) installed on the base (1).
5. The polishing and trimming device for the plate for the fire-fighting box body production line as recited in claim 1, wherein: the clamping piece comprises a rotating shaft which is horizontally and rotatably connected to the positioning plate (11) and two ends of which penetrate out of the positioning plate (11), wherein two ends of the length direction of the rotating shaft are respectively provided with a first screw rod part (19) and a second screw rod part (24) with opposite screw thread turning directions, the first screw rod part (19) and the second screw rod part (24) are respectively sleeved with a nut seat (18) in a threaded manner, two opposite ends of the base (1) are respectively and vertically provided with a fixing part (13), the upper end parts of the two fixing parts (13) are respectively hinged with a rotating arm (14), the two rotating arms (14) are respectively hinged with a connecting rod (17), the two connecting rods (17) are respectively and correspondingly hinged with the two nut seats (18), one end of the rotating arm (14) far away from the fixing part (13) is provided with a tightening column (10) for tightening the top surface of the plate, and when the rotating shaft rotates, the two connecting rods (17) respectively pull the two rotating arms (14) to rotate downwards, and the lower end faces of the two abutting columns (10) abut against the surface of a plate.
6. The polishing and trimming device for the plate for the fire-fighting box body production line as recited in claim 5, wherein: the rotating shaft is driven to rotate by a speed reducing motor (12) arranged on one of the fixing pieces (13).
7. The polishing and trimming device for the plate for the fire-fighting box body production line as recited in claim 5, wherein: the bottom surface of the tightening column (10) is provided with a plurality of ratchets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011035408.4A CN112123082A (en) | 2020-09-27 | 2020-09-27 | A polishing saw limit device that is used for panel for fire hose box production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011035408.4A CN112123082A (en) | 2020-09-27 | 2020-09-27 | A polishing saw limit device that is used for panel for fire hose box production line |
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| Publication Number | Publication Date |
|---|---|
| CN112123082A true CN112123082A (en) | 2020-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011035408.4A Pending CN112123082A (en) | 2020-09-27 | 2020-09-27 | A polishing saw limit device that is used for panel for fire hose box production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112123082A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113426907A (en) * | 2021-06-22 | 2021-09-24 | 佛山市阿玛达机械科技有限公司 | Automatic production line for flanging of fire extinguisher case shell |
| CN113523985A (en) * | 2021-07-20 | 2021-10-22 | 山东国泰民安玻璃科技有限公司 | Quick maintenance device for large cam of bottle making machine |
| CN113752152A (en) * | 2021-08-31 | 2021-12-07 | 成都南骄科技有限公司 | Waveguide antenna panel burnishing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113426907A (en) * | 2021-06-22 | 2021-09-24 | 佛山市阿玛达机械科技有限公司 | Automatic production line for flanging of fire extinguisher case shell |
| CN113523985A (en) * | 2021-07-20 | 2021-10-22 | 山东国泰民安玻璃科技有限公司 | Quick maintenance device for large cam of bottle making machine |
| CN113752152A (en) * | 2021-08-31 | 2021-12-07 | 成都南骄科技有限公司 | Waveguide antenna panel burnishing device |
| CN113752152B (en) * | 2021-08-31 | 2022-07-15 | 成都南骄科技有限公司 | Waveguide antenna panel burnishing device |
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Application publication date: 20201225 |
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| RJ01 | Rejection of invention patent application after publication |