CN110977776A - Dust cover of anti-sticking material - Google Patents
Dust cover of anti-sticking material Download PDFInfo
- Publication number
- CN110977776A CN110977776A CN201911160284.XA CN201911160284A CN110977776A CN 110977776 A CN110977776 A CN 110977776A CN 201911160284 A CN201911160284 A CN 201911160284A CN 110977776 A CN110977776 A CN 110977776A
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- China
- Prior art keywords
- cover
- fixed
- gear
- fixedly connected
- rotating
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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
- 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
- B24B55/05—Protective covers for the grinding wheel specially designed for portable grinding machines
- B24B55/052—Protective covers for the grinding wheel specially designed for portable grinding machines with rotating tools
Abstract
The invention belongs to the technical field of machine manufacturing, and particularly relates to a dust cover for preventing materials from being blocked, which comprises a grinder body and a grinding wheel fixed at the output end of the grinder body, wherein a fixed cover and a rotating cover are sleeved on the outer side of the grinding wheel, the fixed cover is hinged with the rotating cover, the fixed cover is fixedly connected with the grinder body, and the opening end of the rotating cover is fixedly connected with a connecting rod; if the smooth work piece of personnel hand takes place to drop, the work piece drops in to rotating the cover, at first with contact roller contact, at this moment, the rotor arm can drive the gear and carry out anticlockwise rotation, because fixture block and gear joint, the fixture block can promote the slider and slide to the outside, the magnetism suction disc on the dead lever breaks away from the contact with the slider, the dead lever does not have any traction force, at this moment, the rotation cover can be under the effect of gravity, the rotation is opened downwards, prevent to drop to the work piece and the emery wheel contact friction in rotating the cover, uncontrollable beating takes place, cause to rotate the cover and damage, the security of the device is improved.
Description
Technical Field
The invention belongs to the technical field of machine manufacturing, and particularly relates to a dust cover capable of preventing materials from being clamped.
Background
Grinders are common devices used to sharpen various knives and tools. The grinder mainly comprises a base, a grinding wheel, a water feeder and a power source, wherein the grinding wheel is arranged on the top surface of the base, a space for accommodating the power source is arranged in the base, the power source drives a speed reducer, the speed reducer is provided with a transmission shaft penetrating through the top surface of the base for fixedly connecting the grinding wheel, a sunken water collecting area is arranged at the position, corresponding to the bottom of the grinding wheel, of the base, a flow channel extends outwards from the water collecting area, the water feeder is arranged above one side of the grinding wheel, a space for containing water liquid is arranged in the water feeder, and a water outlet is formed in one side of the water feeder. The grinding machine has the effects of simplifying and perfecting the whole transmission mechanism, enabling the grinding process to be more convenient and smoother and improving the grinding efficiency of the whole grinder.
The dust cover structure of the existing grinding machine is fixed, and is directly fixed on the grinding machine, when a workpiece with a small grinding volume is ground, if a worker slips, the workpiece easily drops into the dust cover, uncontrollable jumping occurs, the dust cover is damaged, and the operator is injured seriously.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a dust cover for preventing material from being blocked, which has the characteristic of high safety.
In order to achieve the purpose, the invention provides the following technical scheme: a dust cover for preventing material from being blocked comprises a grinder body and a grinding wheel fixed at the output end of the grinder body, wherein a fixed cover and a rotating cover are sleeved on the outer side of the grinding wheel, the fixed cover is hinged to the rotating cover, the fixed cover is fixedly connected with the grinder body, a connecting rod is fixedly connected to the open end of the rotating cover, a fixed rod is hinged to one end, away from the rotating cover, of the connecting rod, a magnetic suction plate is embedded in the outer side wall of the fixed rod, a transmission mechanism corresponding to the grinding wheel is further fixedly connected to the grinder body, the transmission mechanism comprises a fixed arm and a gear rotatably connected to one end of the fixed arm, the fixed arm is fixedly connected with the grinder body, a rotating arm is coaxially fixed to the gear, one end, away from the gear, of the rotating arm is rotatably connected with a contact roller, the contact roller is in contact with the grinding wheel, and one end, connected, the pull rod is far away from one end fixedly connected with second spring of gear, the other end of second spring with fixed arm fixed connection, the second spring is located the top of pull rod, install coupling mechanism on the fixed arm, coupling mechanism with gear drive is connected, the dead lever with coupling mechanism can dismantle the connection.
Preferably, coupling mechanism includes support arm and slip case, the support arm with fixed arm fixed connection, the inner wall sliding connection of slip case has the slider, the second spout has been seted up to the top surface of slider, sliding connection has the fixture block in the second spout, the first spring of bottom fixedly connected with of fixture block, the fixture block with the gear joint, the material of slider is iron.
Preferably, the magnetic attraction plate on the fixing rod is magnetically attracted with the sliding block.
Preferably, first chutes are formed in two symmetrical inner side walls of the sliding box.
Preferably, two symmetrical outer side walls of the sliding block are fixedly connected with guide blocks corresponding to the first sliding grooves, and the guide blocks slide in the first sliding grooves.
Preferably, the axial length of the contact roller is greater than the thickness of the grinding wheel.
Preferably, the support arm and the sliding box are made of plastics.
Preferably, the second spring is an extension spring.
Preferably, the first spring is a compression spring.
Compared with the prior art, the invention has the beneficial effects that:
when polishing the work piece, the contact of work piece and the lateral wall of emery wheel, if the smooth work piece of personnel hand takes place to drop, the work piece drops in to rotating the cover, at first with contact roller contact, at this moment, the rotor arm can drive the gear and carry out anticlockwise rotation, because fixture block and gear joint, the fixture block can promote the slider and slide to the outside, magnetism suction disc and slider on the dead lever break away from the contact, the dead lever does not have any traction force, at this moment, it can be under the effect of gravity to rotate the cover, the rotation is opened downwards, prevent to drop to rotating the work piece and the emery wheel contact friction in the cover, take place uncontrollable and beat, cause to rotate the cover and damage.
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 structural view of the present invention;
FIG. 2 is a schematic view of the transmission mechanism of the present invention;
FIG. 3 is a schematic view of the linkage of the transmission mechanism of the present invention;
FIG. 4 is an enlarged view of the point A in FIG. 2;
FIG. 5 is an enlarged view of the point B in FIG. 3;
fig. 6 is a schematic view showing an opened state of the rotating cover in the present invention.
In the figure: 10. a grinder body; 20. a grinding wheel; 1. a fixed cover; 2. a rotating cover; 21. a connecting rod; 22. fixing the rod; 221. a magnetic attraction plate; 3. a transmission mechanism; 31. a fixed arm; 32. a gear; 321. a pull rod; 33. a rotating arm; 34. a contact roller; 4. a connecting mechanism; 41. a support arm; 42. a slide box; 421. a first chute; 43. a slider; 431. a second chute; 44. a clamping block; 45. a first spring; 46. a guide block; 5. a second spring.
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. 1-6, the present invention provides the following technical solutions: a dust cover for preventing material from being blocked comprises a grinder body 10 and a grinding wheel 20 fixed at the output end of the grinder body, wherein a fixed cover 1 and a rotating cover 2 are sleeved outside the grinding wheel 20, the fixed cover 1 is hinged with the rotating cover 2, the fixed cover 1 is fixedly connected with the grinder body 10, the opening end of the rotating cover 2 is fixedly connected with a connecting rod 21, one end, far away from the rotating cover 2, of the connecting rod 21 is hinged with a fixed rod 22, the outer side wall of the fixed rod 22 is embedded with a magnetic suction plate 221, the grinder body 10 is also fixedly connected with a transmission mechanism 3 corresponding to the grinding wheel 20, the transmission mechanism 3 comprises a fixed arm 31 and a gear 32 rotatably connected at one end of the fixed arm 31, the fixed arm 31 is fixedly connected with the grinder body 10, a rotating arm 33 is coaxially fixed on the gear 32, one end, far away from the gear 32, of the rotating arm 33 is rotatably connected with a contact roller 34, the, one end of the pull rod 321, which is far away from the gear 32, is fixedly connected with a second spring 5, the other end of the second spring 5 is fixedly connected with the fixed arm 31, the second spring 5 is located above the pull rod 321, the fixed arm 31 is provided with a connecting mechanism 4, the connecting mechanism 4 is in transmission connection with the gear 32, and the fixed rod 22 is detachably connected with the connecting mechanism 4.
In this embodiment: when the grinding wheel 20 is normally worn, the pull rod 321 is pulled by the second spring 5, the rotating arm 33 on the gear 32 continuously has a tendency of rotating upwards, so that the contact roller 34 is always in contact with the grinding wheel 20, the fixture block 44 slides downwards under the action of the gear 32 and is always clamped with the gear 32 under the action of the first spring 45, when a workpiece is ground, the workpiece is in contact with the side wall of the grinding wheel 20, if the workpiece slides by hands, falls into the rotating cover 2 and is firstly in contact with the contact roller 34, at this time, the rotating arm 33 drives the gear 32 to rotate anticlockwise, because the fixture block 44 is clamped with the gear 32, the fixture block 44 can push the slider 43 to slide outwards, the magnetic suction plate 221 on the fixing rod 22 is separated from the slider 43, the fixing rod 22 has no traction force, at this time, the rotating cover 2 can rotate downwards and open under the action of gravity, so as to prevent the workpiece falling into the rotating cover 2 from being in contact with and rubbing, uncontrollable jumping occurs to cause damage to the rotating cover 2, and the safety of the device is improved.
In fig. 1-3: the grinding wheel machine comprises a grinding wheel machine body 10 and a grinding wheel 20 fixed at the output end of the grinding wheel machine body, wherein a fixed cover 1 and a rotating cover 2 are sleeved on the outer side of the grinding wheel 20, the fixed cover 1 is hinged with the rotating cover 2, the fixed cover 1 is fixedly connected with the grinding wheel machine body 10, a connecting rod 21 is fixedly connected with the opening end of the rotating cover 2, one end, away from the rotating cover 2, of the connecting rod 21 is hinged with a fixed rod 22, a magnetic suction plate 221 is embedded in the outer side wall of the fixed rod 22, a transmission mechanism 3 corresponding to the grinding wheel 20 is fixedly connected onto the grinding wheel machine body 10, the transmission mechanism 3 comprises a fixed arm 31 and a gear 32 rotatably connected onto one end of the fixed arm 31, the fixed arm 31 is fixedly connected with the grinding wheel machine body 10, a rotating arm 33 is coaxially fixed onto the gear 32, one end, away from the gear 32, of, one end of the pull rod 321, which is far away from the gear 32, is fixedly connected with a second spring 5, the other end of the second spring 5 is fixedly connected with the fixed arm 31, the second spring 5 is located above the pull rod 321, the fixed arm 31 is provided with the connecting mechanism 4, the connecting mechanism 4 is in transmission connection with the gear 32, the fixed rod 22 is detachably connected with the connecting mechanism 4, when the grinding wheel 20 is normally worn, the second spring 5 pulls the pull rod 321, the rotating arm 33 on the gear 32 continuously tends to rotate upwards, so that the contact roller 34 is always in contact with the grinding wheel 20, the fixture block 44 slides downwards under the action of the gear 32 and is always clamped with the gear 32 under the action of the first spring 45, when the workpiece is ground, the workpiece is in contact with the side wall of the grinding wheel 20, if the workpiece is dropped by a person, the workpiece drops into the rotating cover 2, and is firstly in contact with the contact roller 34, at this time, the rotating arm 33, because the fixture block 44 is clamped with the gear 32, the fixture block 44 can push the sliding block 43 to slide outwards, the magnetic suction plate 221 on the fixing rod 22 is separated from the sliding block 43, the fixing rod 22 has no traction force, at the moment, the rotating cover 2 can rotate downwards and is opened under the action of gravity, the workpiece falling into the rotating cover 2 is prevented from contacting and rubbing with the grinding wheel 20, uncontrollable jumping is caused, the rotating cover 2 is damaged, the safety of the device is improved, the axial length of the contact roller 34 is greater than the thickness of the grinding wheel 20, and the contact roller 34 can be contacted when the workpiece falling is ensured.
In fig. 4, the connection mechanism 4 includes a support arm 41 and a sliding box 42, the support arm 41 is fixedly connected to the fixed arm 31, a sliding block 43 is slidably connected to an inner wall of the sliding box 42, a second sliding groove 431 is formed in a top surface of the sliding block 43, a fixture block 44 is slidably connected to the second sliding groove 431, a first spring 45 is fixedly connected to a bottom end of the fixture block 44, the fixture block 44 is in clamping connection with the gear 32, the material of the sliding block 43 is iron, if a person slides a workpiece by hand and drops the workpiece into the rotating cover 2, and first contacts with the contact roller 34, at this time, the rotating arm 33 drives the gear 32 to rotate counterclockwise, because the fixture block 44 is in clamping connection with the gear 32, the fixture block 44 can push the sliding block 43 to slide outward, the magnetic suction plate 221 on the fixed rod 22 is separated from the sliding block 43, and the fixed rod 22 has no traction force, at this, the cover is opened by rotating downwards, the magnetic attraction plate 221 on the fixed rod 22 is connected with the sliding block 43 in a magnetic attraction manner, when the sliding block 43 is pushed by the fixture block 44 to slide outwards, the magnetic attraction plate 221 on the fixed rod 22 is separated from the sliding block 43 in a contact manner, the fixed rod 22 has no traction force, at the moment, the rotating cover 2 can rotate downwards and open under the action of gravity, the first sliding groove 421 is formed in each of the two symmetrical inner side walls of the sliding box 42, the guide blocks 46 corresponding to the first sliding grooves 421 are fixedly connected to each of the two symmetrical outer side walls of the sliding block 43, the guide blocks 46 slide in the first sliding grooves 421, when the sliding block 43 slides in the sliding box 42, the guide blocks 46 can slide in the first sliding grooves 421 to limit and guide the sliding of the sliding block 43, the support arm 41 and the sliding box 42 are made of plastic, and when the magnetic attraction, the magnetic attraction plate 221 on the fixing rod 22 is not magnetically connected to the support arm 41 or the sliding box 42, so as to ensure the smooth opening of the rotating cover 2, and the first spring 45 is a compression spring, and can apply an upward force to the latch 44, so that the latch 44 is always engaged with the gear 32.
In fig. 5: one end fixedly connected with pull rod 321 that gear 32 is connected with fixed arm 31, the one end fixedly connected with second spring 5 that gear 32 was kept away from to pull rod 321, the other end and the fixed arm 31 fixed connection of second spring 5, second spring 5 is located the top of pull rod 321, second spring 5 is extension spring, can upwards stimulate pull rod 321 all the time, and rotor arm 33 on the gear 32 lasts upward pivoted trend for contact roller 34 contacts with emery wheel 20 all the time.
In fig. 6: the magnetic attraction plate 221 on the fixed rod 22 is separated from the slide block 43, the fixed rod 22 has no traction force, at the moment, the rotating cover 2 can rotate downwards to be opened under the action of gravity, the workpiece falling into the rotating cover 2 is prevented from being in contact friction with the grinding wheel 20, uncontrollable jumping is prevented, the rotating cover 2 is damaged, and the safety of the device is improved.
The working principle and the using process of the invention are as follows: when the grinding wheel 20 is normally worn, the pull rod 321 is pulled by the second spring 5, the rotating arm 33 on the gear 32 continuously has a tendency of rotating upwards, so that the contact roller 34 is always in contact with the grinding wheel 20, the fixture block 44 slides downwards under the action of the gear 32 and is always clamped with the gear 32 under the action of the first spring 45, when a workpiece is ground, the workpiece is in contact with the side wall of the grinding wheel 20, if the workpiece slides by hands, falls into the rotating cover 2 and is firstly in contact with the contact roller 34, at this time, the rotating arm 33 drives the gear 32 to rotate anticlockwise, because the fixture block 44 is clamped with the gear 32, the fixture block 44 can push the slider 43 to slide outwards, the magnetic suction plate 221 on the fixing rod 22 is separated from the slider 43, the fixing rod 22 has no traction force, at this time, the rotating cover 2 can rotate downwards and open under the action of gravity, so as to prevent the workpiece falling into the rotating cover 2 from being in contact with and rubbing, uncontrollable jumping occurs to cause damage to the rotating cover 2, and the safety of the device is improved.
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 (9)
1. The utility model provides a dust cover of anti-sticking material, includes abrasive machine body (10) and fixes emery wheel (20) at its output, its characterized in that: the outer side of the grinding wheel (20) is sleeved with a fixed cover (1) and a rotating cover (2), the fixed cover (1) is hinged with the rotating cover (2), the fixed cover (1) is fixedly connected with the grinding wheel body (10), the opening end of the rotating cover (2) is fixedly connected with a connecting rod (21), one end, far away from the rotating cover (2), of the connecting rod (21) is hinged with a fixed rod (22), a magnetic suction plate (221) is embedded in the outer side wall of the fixed rod (22), a transmission mechanism (3) corresponding to the grinding wheel (20) is fixedly connected onto the grinding wheel body (10), the transmission mechanism (3) comprises a fixed arm (31) and a gear (32) which is rotatably connected to one end of the fixed arm (31), the fixed arm (31) is fixedly connected with the grinding wheel body (10), and a rotating arm (33) is coaxially fixed onto the gear (32), keep away from rotor arm (33) the one end of gear (32) is rotated and is connected with contact roller (34), contact roller (34) with emery wheel (20) contact, gear (32) with one end fixedly connected with pull rod (321) that fixed arm (31) are connected, keep away from pull rod (321) the one end fixedly connected with second spring (5) of gear (32), the other end of second spring (5) with fixed arm (31) fixed connection, second spring (5) are located the top of pull rod (321), install coupling mechanism (4) on fixed arm (31), coupling mechanism (4) with gear (32) transmission is connected, dead lever (22) with coupling mechanism (4) can be dismantled and be connected.
2. The dust cover of claim 1, wherein: coupling mechanism (4) include support arm (41) and slip case (42), support arm (41) with fixed arm (31) fixed connection, the inner wall sliding connection of slip case (42) has slider (43), second spout (431) have been seted up to the top surface of slider (43), sliding connection has fixture block (44) in second spout (431), the first spring (45) of bottom fixedly connected with of fixture block (44), fixture block (44) with gear (32) joint, the material of slider (43) is iron.
3. The dust cover of claim 2, wherein: the magnetic attraction plate (221) on the fixed rod (22) is magnetically connected with the sliding block (43).
4. The dust cover of claim 2, wherein: first chutes (421) are formed in two symmetrical inner side walls of the sliding box (42).
5. The dust cover of claim 4, wherein: two symmetrical outer side walls of the sliding block (43) are fixedly connected with guide blocks (46) corresponding to the first sliding grooves (421), and the guide blocks (46) slide in the first sliding grooves (421).
6. The dust cover of claim 1, wherein: the axial length of the contact roller (34) is greater than the thickness of the grinding wheel (20).
7. The dust cover of claim 2, wherein: the support arm (41) and the sliding box (42) are made of plastics.
8. The dust cover of claim 1, wherein: the second spring (5) is an extension spring.
9. The dust cover of claim 2, wherein: the first spring (45) is a compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911160284.XA CN110977776B (en) | 2019-11-23 | 2019-11-23 | Dust cover of anti-sticking material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911160284.XA CN110977776B (en) | 2019-11-23 | 2019-11-23 | Dust cover of anti-sticking material |
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| Publication Number | Publication Date |
|---|---|
| CN110977776A true CN110977776A (en) | 2020-04-10 |
| CN110977776B CN110977776B (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911160284.XA Active CN110977776B (en) | 2019-11-23 | 2019-11-23 | Dust cover of anti-sticking material |
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| Country | Link |
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| CN (1) | CN110977776B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115502823A (en) * | 2022-07-14 | 2022-12-23 | 南通金通茂电子有限公司 | Metal grinding device with attached magnetic suction scrap removing mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04164572A (en) * | 1990-10-26 | 1992-06-10 | Nagase Iron Works Co Ltd | Cover for grinding wheel |
| CN205057803U (en) * | 2015-07-14 | 2016-03-02 | 宿州学院 | Abrasive machine protection casing with adjustable |
| CN205685197U (en) * | 2016-06-23 | 2016-11-16 | 绍兴上虞中塘电器五金厂 | A kind of abrasive machine |
| CN206795584U (en) * | 2017-05-12 | 2017-12-26 | 诸暨市固特安机械有限公司 | A kind of abrasive machine |
| CN107803749A (en) * | 2017-10-25 | 2018-03-16 | 成都五七零二科技有限公司 | A kind of abrasive machine of high safety performance |
| CN208391823U (en) * | 2018-06-14 | 2019-01-18 | 厦门禧源达机械有限公司 | A kind of efficient abrasive machine |
| CN208663374U (en) * | 2018-06-27 | 2019-03-29 | 江苏加康磁业科技有限公司 | Abrasive machine is used in a kind of processing of magnetic material magnechuck |
-
2019
- 2019-11-23 CN CN201911160284.XA patent/CN110977776B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04164572A (en) * | 1990-10-26 | 1992-06-10 | Nagase Iron Works Co Ltd | Cover for grinding wheel |
| CN205057803U (en) * | 2015-07-14 | 2016-03-02 | 宿州学院 | Abrasive machine protection casing with adjustable |
| CN205685197U (en) * | 2016-06-23 | 2016-11-16 | 绍兴上虞中塘电器五金厂 | A kind of abrasive machine |
| CN206795584U (en) * | 2017-05-12 | 2017-12-26 | 诸暨市固特安机械有限公司 | A kind of abrasive machine |
| CN107803749A (en) * | 2017-10-25 | 2018-03-16 | 成都五七零二科技有限公司 | A kind of abrasive machine of high safety performance |
| CN208391823U (en) * | 2018-06-14 | 2019-01-18 | 厦门禧源达机械有限公司 | A kind of efficient abrasive machine |
| CN208663374U (en) * | 2018-06-27 | 2019-03-29 | 江苏加康磁业科技有限公司 | Abrasive machine is used in a kind of processing of magnetic material magnechuck |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115502823A (en) * | 2022-07-14 | 2022-12-23 | 南通金通茂电子有限公司 | Metal grinding device with attached magnetic suction scrap removing mechanism |
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| CN110977776B (en) | 2021-04-09 |
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Effective date of registration: 20210506 Address after: 314100 Building 2, No.8 Huimin Road, Taozhuang Town, Jiashan County, Jiaxing City, Zhejiang Province Patentee after: Jiaxing Yuanben Precision Machinery Co.,Ltd. Address before: 314100 building 3, No.8 Huimin Road, Taozhuang Town, Jiashan County, Jiaxing City, Zhejiang Province Patentee before: TS INVESTMENT CASTING Co. |
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