CN112496970A - Hardware polisher - Google Patents
Hardware polisher Download PDFInfo
- Publication number
- CN112496970A CN112496970A CN202011453463.5A CN202011453463A CN112496970A CN 112496970 A CN112496970 A CN 112496970A CN 202011453463 A CN202011453463 A CN 202011453463A CN 112496970 A CN112496970 A CN 112496970A
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- CN
- China
- Prior art keywords
- side wall
- fixedly connected
- driven
- collecting
- hardware
- 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
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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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
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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
- 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
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
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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
- 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
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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
- 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
- B24B55/12—Devices for exhausting mist of oil or coolant; Devices for collecting or recovering materials resulting from grinding or polishing, e.g. of precious metals, precious stones, diamonds or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a hardware grinding machine which comprises a base, wherein a supporting table is fixedly connected to the side wall of the top end of the base, a driving motor is fixedly connected to the side wall of the top end of the supporting table, a rotating shaft is fixedly connected to the output end of the driving motor, and a grinding disc is fixedly connected to the other end of the rotating shaft. The invention relates to the technical field of hardware part polishing equipment, wherein a push rod motor is started through a push rod motor, a push rod motor upwards withdraws the push rod, water in a driven box returns to a driving box through a connecting pipe, a space of a collecting area is formed by a driven push plate and the side wall of the bottom end of a collecting disc, suction force to air on the side wall of the upper end of the collecting disc is generated, waste scraps on the collecting disc are sucked into the collecting area through a through hole, the waste scraps slide into a discharging pipe along the inclined surface by utilizing the inclined surface of the driven push plate, and the waste scraps enter the collecting box again, so that the polishing interference of the waste scraps on hardware parts is reduced.
Description
Technical Field
The invention relates to the technical field of hardware part polishing equipment, in particular to a hardware part polishing machine.
Background
Hardware: traditional hardware is also called small hardware. It refers to five metals of gold, silver, copper, iron and tin. Can be made into artworks such as knives and swords or metal devices through manual processing. The hardware in modern society is more extensive, for example hardware and tools, hardware spare part, daily hardware, building hardware and security articles for use etc..
When polishing small-size hardware component, especially the top lateral wall and the bottom lateral wall of screw of polishing, the sweeps that produce can pile up in the place of fixed screw, can interfere the production of polishing of next screw, makes the size error that next screw was polished to if the manual work is got rid of, then every screw of polishing, the desktop of just need clearing up once has increased staff's intensity of labour.
To this end, we propose a hardware sander to solve the above problems.
Disclosure of Invention
The invention aims to provide a hardware grinding machine to solve the problem that scraps generated in hardware grinding in the current market are not easy to remove in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hardware grinding machine comprises a base, wherein a supporting table is fixedly connected to the side wall of the top end of the base, a driving motor is fixedly connected to the side wall of the top end of the supporting table, a rotating shaft is fixedly connected to the output end of the driving motor, a grinding disc is fixedly connected to the other end of the rotating shaft, a supporting frame is fixedly connected to the side wall of the top end of the base, a push rod motor is fixedly connected to the side wall of the top end of the supporting frame, and a push rod is fixedly connected to the output;
the top end side wall of the base is embedded and connected with a collecting disc, the top end side wall of the collecting disc is fixedly connected with a blocking ring, the top end side wall of the collecting disc is provided with a plurality of through holes, the top end side wall of the collecting disc is fixedly connected with a fixing ring, the fixing ring is positioned at the right lower end of the grinding disc, the side wall of the fixing ring is in threaded connection with four screws in array distribution, the top end side wall of the collecting disc is provided with two symmetrically distributed placing grooves, the side wall of each placing groove is fixedly connected with a plurality of springs in array distribution, the other end of each spring is fixedly connected with a round ball, the bottom end side wall of each placing groove is inserted with a water outlet pipe, the bottom end side wall of each water outlet pipe is fixedly connected with a one-way valve, the top end side wall of each water outlet pipe is rotatably connected, the inner side wall of the rotating pipe is fixedly connected with three connecting rods distributed in an array manner, the other end of each connecting rod is fixedly connected with a round rod, the side wall of each round rod is fixedly connected with three spiral fan blades distributed in an array manner, and the side wall of the rotating pipe is fixedly connected with three extrusion blocks distributed in an array manner;
the utility model discloses a solar collector, including base, drive case, driven case, collecting tray, driven case, outlet pipe, the bottom lateral wall fixedly connected with drive case of bottom of base, the lateral wall of drive push pedal and the inside wall sliding connection of drive case, the lateral wall of drive case is inserted and is equipped with even pipe, the other end of even pipe runs through the driven case, the top lateral wall of driven case and the bottom lateral wall fixed connection of base, the quad slit has all been seted up to the top lateral wall of drive case and driven case, the driven case is located the collection tray under, the inside wall sliding connection of driven case has driven push pedal, the.
Preferably, the top side wall of the driven push plate is provided with a first inclined plane, and the bottom side wall of the driven push plate is fixedly connected with a baffle.
Preferably, the bottom side wall of the collecting tray is provided with a second inclined surface, and the bottom side wall of the second inclined surface abuts against the top side wall of the first inclined surface.
Preferably, the inner side wall of the driven box is coated with a hydrophobic material, and the model of the hydrophobic material is AD 8085.
Preferably, the collecting area is formed among the top side wall of the driven push plate, the inner side wall of the driven box and the bottom side wall of the collecting disc.
Preferably, the side wall of outlet pipe and the lateral wall cover of driven push pedal are equipped with the sealing washer.
Compared with the prior art, the invention has the beneficial effects that:
1. the push rod motor is started through the push rod motor and the push rod, the push rod motor withdraws the push rod upwards, water in the driven box returns to the driving box through the connecting pipe, the driven push plate accelerates the flow of the water from the driven box to the driving box by utilizing gravity, the space of a collecting area is formed by the driven push plate and the side wall of the bottom end of the collecting tray, suction force on air on the side wall of the upper end of the collecting tray is generated, waste scraps on the collecting tray are sucked into the collecting area through the through hole, the waste scraps slide into the discharging pipe along the inclined plane by utilizing the inclined plane of the driven push plate, the waste scraps enter the collecting box again, and the grinding interference of the waste scraps on hardware parts is reduced;
2. the driving motor is started through the driving motor, the grinding disc and the like, the driving motor drives the grinding disc to rotate through the rotating shaft, the grinding disc grinds the hardware parts, and part of heat generated by grinding can be absorbed by water in the storage cylinder, so that the environmental temperature of workers is reduced, and the hardware parts are prevented from being damaged by high temperature;
3. through storage cylinder and outlet pipe etc, the water of storage cylinder and outlet pipe enters into from the driven box through the check valve, this moment water can promote helical fan blade and rotate, helical fan blade passes through the connecting rod and drives the rotary pipe rotation, the rotary pipe drives the stripper block and rotates, the stripper block can extrude the ball, the ball can extrude the spring, the spring takes place the bending, make the ball collide the lateral wall of standing groove, thereby vibrations collecting tray, make the sweeps on the collecting tray can not the stagnation on the collecting tray, guarantee that the sweeps can fall into in the collecting area.
Drawings
Fig. 1 is a schematic perspective view of a hardware polisher according to the present invention;
FIG. 2 is a schematic cross-sectional view of a driven box of a hardware grinding machine according to the present invention;
FIG. 3 is a schematic cross-sectional view of a storage cylinder of a hardware polisher according to the present invention;
fig. 4 is an enlarged schematic view of a portion a in fig. 3.
In the figure: 1. a base; 2. a support table; 3. a drive motor; 4. a grinding disc; 5. a support frame; 6. a push rod motor; 7. a push rod; 8. a drive box; 9. connecting pipes; 10. a driven box; 11. a circular tube; 12. a shield ring; 13. a storage cylinder; 14. a driven push plate; 15. a discharge pipe; 16. a collection box; 17. a water outlet pipe; 18. a one-way valve; 19. a collection tray; 20. a through hole; 21. a fixing ring; 22. a screw; 23. a placement groove; 24. a spring; 25. a ball; 26. extruding the block; 27. pipe rotation; 28. a connecting rod; 29. a helical fan blade; 30. a round bar; 31. the push plate is driven.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-4, a hardware grinding machine comprises a base 1, wherein a supporting table 2 is fixedly connected to the top side wall of the base 1, a driving motor 3 is fixedly connected to the top side wall of the supporting table 2, a rotating shaft is fixedly connected to the output end of the driving motor 3, a grinding disc 4 is fixedly connected to the other end of the rotating shaft, a supporting frame 5 is fixedly connected to the top side wall of the base 1, a push rod motor 6 is fixedly connected to the top side wall of the supporting frame 5, and a push rod 7 is fixedly connected to the output end of the;
the top end side wall of the base 1 is embedded and connected with a collecting tray 19, the bottom end side wall of the collecting tray 19 is provided with a second inclined surface, the bottom end side wall of the second inclined surface is abutted against the top end side wall of the first inclined surface, so that scraps can conveniently slide down, the top end side wall of the collecting tray 19 is fixedly connected with a blocking ring 12, the top end side wall of the collecting tray 19 is provided with a plurality of through holes 20, the top end side wall of the collecting tray 19 is fixedly connected with a fixing ring 21, the fixing ring 21 is positioned at the right lower end of the grinding disc 4, the side wall of the fixing ring 21 is in threaded connection with four screws 22 distributed in an array manner, the top end side wall of the collecting tray 19 is provided with two symmetrically distributed placing grooves 23, the side wall of the placing groove 23 is fixedly connected with a plurality of springs 24 distributed in an array manner, the other end of each spring 24 is fixedly connected with a round ball 25, the bottom, the storage cylinder 13 is inserted into the top end side wall of the rotating pipe 27, the round pipe 11 is inserted into the top end side wall of the storage cylinder 13, three connecting rods 28 distributed in an array are fixedly connected to the inner side wall of the rotating pipe 27, a round rod 30 is fixedly connected to the other end of each connecting rod 28, three spiral fan blades 29 distributed in an array are fixedly connected to the side wall of each round rod 30, and three extrusion blocks 26 distributed in an array are fixedly connected to the side wall of the rotating pipe 27;
the bottom end side wall of the push rod 7 is fixedly connected with a driving push plate 31, the bottom end side wall of the base 1 is inserted and connected with a driving box 8, the side wall of the driving push plate 31 is in sliding connection with the inner side wall of the driving box 8, the side wall of the driving box 8 is inserted and connected with a connecting pipe 9, the other end of the connecting pipe 9 penetrates through a driven box 10, the inner side wall of the driven box 10 is coated with a hydrophobic material, the model of the hydrophobic material is AD8085, the situation that water adsorbs scraps is avoided, the scraps cannot fall into the collecting box 16 is avoided, the top end side wall of the driven box 10 is fixedly connected with the bottom end side wall of the base 1, square holes are formed in the top end side walls of the driving box 8 and the driven box 10, the driven box 10 is located at the right lower end of the collecting disc 19, the inner side wall of the driven push plate 10 is in sliding connection with a driven push plate 14, a collecting area is formed between the top, a discharge pipe 15 is inserted into a side wall of the driven box 10, and a collection box 16 is fixedly inserted into the other end of the discharge pipe 15.
In the invention, more water is put into a driving box 8, so that the water in the driving box 8 is more than that in a driven box 10, hardware parts are put into a fixed ring 21, a screw 22 is screwed inwards, the hardware parts are fixed by the screw 22, a push rod motor 6 is started, the push rod motor 6 pushes a push rod 7 to move downwards, the push rod 7 pushes a driving push plate 31 downwards, the driving push plate 31 extrudes the water downwards, the water passes through a connecting pipe 9 and enters the driven box 10, then the driven push plate 14 is extruded to move upwards, so that the top end side wall of the driven push plate 14 is tightly attached to the bottom end side wall of a collecting disc 19, meanwhile, the water in the driven box 10 enters a storage cylinder 13 through a circular pipe 11, the water in the storage cylinder 13 enters a water outlet pipe 17, a sealing ring is sleeved on the side wall of the water outlet pipe 17 and the side wall of the driven push plate 14 to prevent the water from entering a collecting area, and the water, the water in the water outlet pipe 17 can not flow into the driven box 10 at this time;
at the moment, the driving motor 3 is started, the driving motor 3 drives the grinding disc 4 to rotate through the rotating shaft, the grinding disc 4 polishes the hardware, part of heat generated by polishing can be absorbed by water in the storage cylinder 13, the environment temperature of workers is reduced, damage to the hardware due to high temperature is avoided, and after the hardware is polished, the screw 22 is loosened, and the hardware is taken out;
at the moment, the push rod motor 6 is turned on, the push rod 7 is withdrawn upwards by the push rod motor 6, water in the driven box 10 returns to the driving box 8 through the connecting pipe 9, the driven push plate 14 accelerates the flow of the water from the driven box 10 to the driving box 8 by utilizing gravity, the driven push plate 14 and the bottom end side wall of the collection disc 19 form a space of a collection area, suction force to air on the upper end side wall of the collection disc 19 is generated, waste scraps on the collection disc 19 are sucked into the collection area through the through hole 20, the waste scraps slide into the discharge pipe 15 along the inclined surface by utilizing the inclined surface arrangement of the driven push plate 14, the waste scraps enter the collection box 16 again, and the grinding interference of the waste scraps on hardware parts is reduced.
Meanwhile, the water of the storage cylinder 13 and the water outlet pipe 17 enters the driven box 10 through the one-way valve 18, at the moment, the water can push the spiral fan blades 29 to rotate, the spiral fan blades 29 drive the rotary pipe 27 to rotate through the connecting rod 28, the rotary pipe 27 drives the extrusion block 26 to rotate, the extrusion block 26 can extrude the round ball 25, the round ball 25 can extrude the spring 24, the spring 24 bends, the round ball 25 collides with the side wall of the placing groove 23, thereby the collecting tray 19 is vibrated, the waste scraps on the collecting tray 19 can not be stopped on the collecting tray 19, and the waste scraps can be ensured to fall into the collecting area.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The hardware grinding machine comprises a base (1) and is characterized in that a supporting table (2) is fixedly connected to the top side wall of the base (1), a driving motor (3) is fixedly connected to the top side wall of the supporting table (2), a rotating shaft is fixedly connected to the output end of the driving motor (3), a grinding disc (4) is fixedly connected to the other end of the rotating shaft, a supporting frame (5) is fixedly connected to the top side wall of the base (1), a push rod motor (6) is fixedly connected to the top side wall of the supporting frame (5), and a push rod (7) is fixedly connected to the output end of the push rod motor (6);
the top end side wall of the base (1) is embedded with a collecting disc (19), the top end side wall of the collecting disc (19) is fixedly connected with a shielding ring (12), the top end side wall of the collecting disc (19) is provided with a plurality of through holes (20), the top end side wall of the collecting disc (19) is fixedly connected with a fixing ring (21), the fixing ring (21) is positioned at the lower end of the grinding disc (4), the side wall of the fixing ring (21) is in threaded connection with four screws (22) distributed in an array manner, the top end side wall of the collecting disc (19) is provided with two symmetrically distributed placing grooves (23), the side wall of each placing groove (23) is fixedly connected with a plurality of springs (24) distributed in an array manner, the other end of each spring (24) is fixedly connected with a round ball (25), the bottom end side wall of each placing groove (23) is inserted with a water outlet pipe (17), and the bottom end side, the water outlet pipe is characterized in that a rotating pipe (27) is rotatably connected to the side wall of the top end of the water outlet pipe (17), a storage cylinder (13) is inserted into the side wall of the top end of the rotating pipe (27), a round pipe (11) is inserted into the side wall of the top end of the storage cylinder (13), three connecting rods (28) distributed in an array are fixedly connected to the inner side wall of the rotating pipe (27), a round rod (30) is fixedly connected to the other end of each connecting rod (28), three spiral fan blades (29) distributed in an array are fixedly connected to the side wall of the round rod (30), and three extrusion blocks (26) distributed in an array are fixedly connected to the side wall;
the bottom side wall fixedly connected with drive push pedal (31) of push rod (7), the bottom side wall of base (1) is inserted and is established and be connected with drive case (8), the lateral wall of drive push pedal (31) and the inside wall sliding connection of drive case (8), the lateral wall of drive case (8) is inserted and is equipped with even pipe (9), the other end of even pipe (9) runs through driven case (10), the top side wall of driven case (10) and the bottom side wall fixed connection of base (1), the quad slit has all been seted up to the top lateral wall of drive case (8) and driven case (10), driven case (10) are located the positive lower extreme of collecting tray (19), the inside wall sliding connection of driven case (10) has driven push pedal (14), the lateral wall of driven push pedal (14) is run through to the one end of outlet pipe (17), the lateral wall of driven case (10) is inserted and is equipped with row of material pipe (15), and a collecting box (16) is fixedly inserted at the other end of the discharging pipe (15).
2. A hardware grinding machine according to claim 1, characterized in that the top side wall of the driven push plate (14) is provided with a first inclined surface, and the bottom side wall of the driven push plate (14) is fixedly connected with a baffle plate.
3. A hardware grinding machine according to claim 2, characterized in that the bottom side wall of the collecting tray (19) is provided with a second bevel, the bottom side wall of which abuts the top side wall of the first bevel.
4. A hardware sander as set forth in claim 1, characterized in that the inside wall of said driven box (10) is coated with a hydrophobic material, said hydrophobic material being of type AD 8085.
5. A hardware sander as set forth in claim 1, wherein the gap formed by the top side wall of the driven push plate (14), the inner side wall of the driven box (10) and the bottom side wall of the collection pan (19) is a collection area.
6. A hardware grinding machine according to claim 1, characterized in that the side walls of the outlet pipe (17) and the driven push plate (14) are sleeved with sealing rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011453463.5A CN112496970A (en) | 2020-12-12 | 2020-12-12 | Hardware polisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011453463.5A CN112496970A (en) | 2020-12-12 | 2020-12-12 | Hardware polisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112496970A true CN112496970A (en) | 2021-03-16 |
Family
ID=74973329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011453463.5A Pending CN112496970A (en) | 2020-12-12 | 2020-12-12 | Hardware polisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112496970A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113843703A (en) * | 2021-10-09 | 2021-12-28 | 深圳市嘉业精密五金有限公司 | Polishing device for precise hardware |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001326205A (en) * | 2000-05-16 | 2001-11-22 | Disco Abrasive Syst Ltd | Method and device for cleaning chuck table of grinding device |
| CN205552299U (en) * | 2016-04-22 | 2016-09-07 | 象山杰尔德智能科技有限公司 | Polisher for hardware processing |
| CN109202727A (en) * | 2018-08-15 | 2019-01-15 | 宁波鑫邦粉末冶金有限公司 | A kind of powder metallurgy guide device processing waste material recovery device of grinding apparatus |
| CN209062746U (en) * | 2018-10-26 | 2019-07-05 | 江苏鼎辉家居股份有限公司 | Grinding device is used in a kind of production of hardware |
| CN209062744U (en) * | 2018-10-24 | 2019-07-05 | 泗阳德福来五金制品有限公司 | Grinding device is used in a kind of processing of Hardware fitting |
| CN209902987U (en) * | 2019-05-22 | 2020-01-07 | 烟台圣森自动化科技有限公司 | Polishing and deburring device with dust removal function |
| CN211708887U (en) * | 2020-01-15 | 2020-10-20 | 上海锐佰驰实业有限公司 | Grinding device is used in hardware fitting processing |
-
2020
- 2020-12-12 CN CN202011453463.5A patent/CN112496970A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001326205A (en) * | 2000-05-16 | 2001-11-22 | Disco Abrasive Syst Ltd | Method and device for cleaning chuck table of grinding device |
| CN205552299U (en) * | 2016-04-22 | 2016-09-07 | 象山杰尔德智能科技有限公司 | Polisher for hardware processing |
| CN109202727A (en) * | 2018-08-15 | 2019-01-15 | 宁波鑫邦粉末冶金有限公司 | A kind of powder metallurgy guide device processing waste material recovery device of grinding apparatus |
| CN209062744U (en) * | 2018-10-24 | 2019-07-05 | 泗阳德福来五金制品有限公司 | Grinding device is used in a kind of processing of Hardware fitting |
| CN209062746U (en) * | 2018-10-26 | 2019-07-05 | 江苏鼎辉家居股份有限公司 | Grinding device is used in a kind of production of hardware |
| CN209902987U (en) * | 2019-05-22 | 2020-01-07 | 烟台圣森自动化科技有限公司 | Polishing and deburring device with dust removal function |
| CN211708887U (en) * | 2020-01-15 | 2020-10-20 | 上海锐佰驰实业有限公司 | Grinding device is used in hardware fitting processing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113843703A (en) * | 2021-10-09 | 2021-12-28 | 深圳市嘉业精密五金有限公司 | Polishing device for precise hardware |
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Application publication date: 20210316 |