CN111958327A - Feeding process for grinding production of ceramic cups - Google Patents
Feeding process for grinding production of ceramic cups Download PDFInfo
- Publication number
- CN111958327A CN111958327A CN202010699726.4A CN202010699726A CN111958327A CN 111958327 A CN111958327 A CN 111958327A CN 202010699726 A CN202010699726 A CN 202010699726A CN 111958327 A CN111958327 A CN 111958327A
- Authority
- CN
- China
- Prior art keywords
- ceramic cup
- push rod
- moving
- rod
- ceramic
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- 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
-
- 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
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention relates to the technical field of ceramic cup production, in particular to a feeding process for polishing production of a ceramic cup; the cup mouth of the ceramic cup is placed on the moving track downwards for feeding; the moving rod is provided with at least two groups of rotating push rods, and the push rod heads of the push rods are movably exposed out of the surface of the moving track; the feeding process at least comprises a ceramic cup pushing process and a moving rod resetting action; a ceramic cup pushing procedure: the moving rod moves forwards along the moving track, and the inner wall in front of the ceramic cup is pushed by the push rod head exposed out of the moving track to move the ceramic cup; resetting the movable rod: the moving rod moves backwards along the moving track to reset, the push rod head touches the inner wall behind the ceramic cup, the push rod head rotates to bypass the inner wall of the ceramic cup and is positioned outside the ceramic cup, and the push rod resets; the inner wall of the ceramic cup is pushed by the push rod to achieve moving feeding, the push rod rotates to bypass the ceramic cup when the moving rod resets, feeding is waited, after polishing is completed, the moving rod pushes the ceramic cup out while moving feeding, automatic production can be achieved integrally, and production efficiency is high.
Description
Technical Field
The invention relates to the technical field of ceramic cup production, in particular to a feeding process for polishing production of a ceramic cup.
Background
The bottom of the ceramic cup needs to be polished in the existing ceramic cup production, at present, the ceramic cup is only polished through manual operation, no automatic polishing equipment exists, and particularly, the existing automatic feeding device cannot be directly applied to polishing production of the ceramic cup, so that automatic feeding, polishing and discharging of the ceramic cup cannot be realized in the prior art, and the production efficiency is low.
Therefore, based on the above-mentioned defects of the existing ceramic cup production equipment and process, the existing ceramic cup production process needs to be improved.
Disclosure of Invention
The invention aims to provide a ceramic cup polishing production feeding process aiming at the defects of the prior art, and the ceramic cup polishing production feeding process solves the problems of the prior ceramic cup production equipment that: the automatic production can not be realized, the production efficiency is low, and the like.
In order to realize the purpose, the invention is realized by the following technical scheme: a feeding process for polishing production of ceramic cups, wherein the mouth of each ceramic cup is downwards placed on a moving track for feeding; the moving rod is provided with at least two groups of rotating push rods, and the push rod heads of the push rods are movably exposed out of the surface of the moving track; the feeding process at least comprises a ceramic cup pushing process and a moving rod resetting action;
a ceramic cup pushing procedure: the moving rod moves forwards along the moving track, and the inner wall in front of the ceramic cup is pushed by the push rod head exposed out of the moving track to move the ceramic cup;
resetting the movable rod: the moving rod moves backwards along the moving track to reset, the push rod head touches the inner wall of the rear part of the ceramic cup, the push rod head rotates to bypass the inner wall of the ceramic cup and is positioned outside the ceramic cup, and the push rod resets.
When the moving rod resets, the push rod head touches the outer wall in front of the ceramic cup, the push rod head rotates to bypass the outer wall of the ceramic cup and is positioned in the ceramic cup, and the push rod resets.
The movable rod moves horizontally and linearly.
The push rods are provided with three groups.
The invention has the beneficial effects that: through the removal of carriage release lever, make the push rod can drive the ceramic cup and polish to the head below of polishing, the push rod produces the rotation and bypasses the ceramic cup when the carriage release lever resets, and the carriage release lever removes to the feed position and carries out the ceramic cup and transfer, polishes and accomplishes the back, and the carriage release lever removes and releases the ceramic cup, wholly can realize automated production, and production efficiency is high.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is another schematic view of the present invention.
FIG. 3 is a schematic view of the travel bar assembly of the present invention.
Fig. 4 is a partially enlarged schematic view of fig. 3.
Fig. 5 is a schematic view of the push rod of the present invention.
Fig. 6 is a schematic diagram of the moving track of the present invention.
Fig. 7 is a schematic view of the cup clamping device of the present invention.
Fig. 8 is a schematic view of a sharpening head of the present invention.
FIG. 9 is a schematic flow chart of the present invention.
The invention has the following label names: the device comprises a bottom plate 1, a moving rod 2, a push rod 3, a polishing motor 4, a polishing head 5, a ceramic cup conveying belt 6, a product conveying seat 7, a cup clamping cylinder 8, a soft cushion 9, a moving cylinder 10, a push plate 11, a push plate moving groove 12, a moving track 13, a push rod moving groove 14, a conveying motor 15, a moving interval 16, a bottom mounting plate 17, a lower mounting plate 18, an upper mounting plate 19, a top mounting plate 20, a lifting cylinder 21, a limiting rod 22, a soft cushion seat 23, a cup clamping seat 24, a connecting shaft 25, a spring 26, a vertical shaft 27, a convex edge 28, a push rod limiting groove 29, a sliding groove 30, a push rod pivot 31, a blocking shaft 32, a pivot hole 33, a lower convex part 34, a first push rod 35, a second push rod 36, a third push rod.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Referring to fig. 1-9, the feeding process for grinding production of ceramic cups according to the present invention comprises placing the ceramic cups on a moving rail 13 with the mouth facing downward for feeding; the specific flow is shown in fig. 9A, B, C, D. As shown in fig. 9A, the second push rod 36 and the third push rod 37 on the moving rod 2 are buckled with ceramic cups, so that the second push rod 36 and the third push rod 37 are located in the ceramic cups; when the moving rod 2 moves forwards, the second push rod 36 and the third push rod 37 push the front inner wall of the ceramic cup, so that the ceramic cup moves below the polishing head to be polished; as shown in fig. 9B, the moving rod moves backward to be reset, when the second push rod 36 and the third push rod 37 touch the rear inner wall of the ceramic cup, the second push rod 36 and the third push rod 37 rotate, until the second push rod 36 and the third push rod 37 bypass the inner wall of the ceramic cup and are located outside the ceramic cup, the second push rod 36 and the third push rod 37 reset to the vertical state, as shown in fig. 9C, the first push rod 35 and the second push rod 36 touch the front outer wall of the ceramic cup to rotate, until the first push rod 35 and the second push rod 36 enter the ceramic cup, the first push rod 35 resets to the vertical state, and the ceramic cup is fastened on the third push rod 37; as shown in fig. 9D, the moving rod moves forward, the first pushing rod 35, the second pushing rod 36 and the third pushing rod 37 push the front inner wall of the ceramic cup, the first pushing rod 35 moves between the two ceramic cup conveyer belts 6, and the ceramic cup buckled on the first pushing rod 35 moves to the conveyer belts 6 for discharging.
The invention adopts two groups of polishing heads 5 to polish two ceramic cups simultaneously, and adopts three groups of push rods 3 including a first push rod 35, a second push rod 36 and a third push rod 37 to transfer the ceramic cups, and also can adopt two groups of push rods 3 to transfer the ceramic cups. The feeding and discharging of the ceramic cup can be butted with other automatic equipment, and are not described herein.
The push rod heads 38 of the three groups of push rods 3 limit the clockwise rotation angle, but the push rod heads 38 are exposed out of the moving track when the push rods 3 push the ceramic cup to move, so that the push rod heads 38 can push the ceramic cup; preferably, the front end that keeps the push rod head is vertical form, and can not rotate clockwise when vertical state, can only anticlockwise rotate, so three group push rods 3 can only push away ceramic cup and remove the pay-off to left side the place ahead, and the push rod head 38 of three group push rods 3 can only clockwise rotate when vertical state, so three group push rods 3 can only bypass ceramic cup and reset to right side rear, waits to remove the pay-off next time. If the ceramic cup is changed to feed to the right, the pusher heads 38 of the three sets of pushrods 3 are modified to: in the vertical state, the rotation is limited to be incapable of anticlockwise rotation and only capable of clockwise rotation.
The moving bar 2 of the present invention moves horizontally and linearly.
The push rod head 38 of the push rod 3 of the invention is rotated to expose the upper end surface of the moving rod 2, the moving rod 2 is also provided with a stop shaft 32 for limiting the rotation of the push rod, and the push rod head 38 of the push rod 3 is exposed out of the upper end surface of the moving rod 2 when the push rod is abutted against the stop shaft 32.
When the ceramic cup moves below the polishing head 5, the cup clamping device clamps the ceramic cup to keep the ceramic cup fixed, and then polishing is carried out.
The cup clamping device loosens the ceramic cup, and the moving rod 2 moves to discharge.
The ceramic cup polishing line comprises a bottom plate 1, a moving rod 2, push rods 3, a polishing motor 4 and a polishing head 5, wherein a moving track 13 is mounted on the bottom plate 1, the moving rod 2 is arranged in the moving track 13 in a sliding mode, the plurality of push rods 3 are pivoted on the moving rod 2, the polishing head 5 which moves up and down is arranged above the moving track 13, and the polishing head 5 is driven by the polishing motor 4.
A product conveying seat 7 is installed on a bottom plate 1, two groups of ceramic cup conveying belts 6 are horizontally installed on the product conveying seat 7, a moving interval 16 is formed between the two groups of ceramic cup conveying belts 6, the moving interval 16 is used for a push rod 3 to move, a conveying motor 15 is arranged below the product conveying seat 7, and the ceramic cup conveying belts 6 are adjacent to a moving track 13 and are flush with the upper end face.
A bottom mounting plate 17, a lower mounting plate 18, an upper mounting plate 19 and a top mounting plate 20 are sequentially fixed on the top of the upright column from bottom to top, a loop bar is connected among the bottom mounting plate 17, the lower mounting plate 18, the upper mounting plate 19 and the top mounting plate 20, a screw rod is mounted on the bottom mounting plate 17, the upper mounting plate 19 and the top mounting plate 20 and used for adjusting the position, a polishing motor 4 is mounted on the lower mounting plate 18, the polishing motor 4 downwards penetrates through the bottom mounting plate 17 and drives a polishing head 5, a lifting cylinder 21 is mounted on the lower mounting plate 18, and a connecting rod of the lifting cylinder 21 is connected with the upper mounting plate 19.
Referring to fig. 3, the moving rod device of the present invention includes a moving rod 2, a push rod 3, a moving cylinder 10, and a push plate 11, wherein the push rod 3 protrudes out of the upper surface of the moving rod 2, the bottom of the moving rod 2 is connected with the push rod 11, the push rod 11 is driven by the moving cylinder 10, the moving rod 2 is provided with a plurality of push rod limiting grooves 29, the push rod 3 is pivoted in the push rod limiting grooves 29, and the side surface of the moving rod 2 is provided with a sliding groove 30. The bottom plate 1 and the moving track 13 are provided with a push plate moving groove 12 for the push plate 11 to move.
One end of the moving rod 2 is narrow, the other end is wide, the narrow end is used for penetrating between the two groups of ceramic cup conveying belts 6, and the side face of the wide end is provided with a sliding groove 30.
Referring to fig. 4, the moving rod 2 of the present invention is pivotally connected to a push rod pivot 31, the push rod pivot 31 fixes the push rod 3 in the push rod limiting groove 29, and the moving rod 2 is further provided with a stop shaft 32, wherein the stop shaft 32 is parallel to the push rod pivot 31 and is located below the push rod pivot 31.
Referring to fig. 5, the upper portion of the push rod 3 of the present invention is a push rod head 38, the middle portion is a pivot portion, one end of the lower portion forms a downward convex portion 34, the downward convex portion 34 and the pivot portion form a concave step, the pivot portion is provided with a pivot hole 33 for the push rod pivot 31 to pass through, the push rod 3 can rotate, and the downward convex portion 34 and the stop shaft 32 are rotatably abutted. The stop shaft 32 abuts against the lower protrusion 34 to restrict the rotation of the push rod 3 so that the push rod 3 keeps the push rod head 38 exposed from the moving track, thereby achieving the purpose that the push rod 3 pushes the ceramic cup.
The front end of the push rod head 38 is a vertical surface, so that the inner wall of the front end of the ceramic cup can be conveniently pushed, and the rear end of the push rod head 38 is an inclined surface, so that the push rod head 38 can be ensured to fast bypass the outer wall of the front end and the inner wall of the rear end of the ceramic cup.
Referring to fig. 6, the middle of the moving track 13 of the present invention is provided with a push rod moving slot 14, the push rod moving slot 14 is arranged along the length direction of the moving track 13, the push rod moving slot 14 is narrow at the top and wide at the bottom, the push rod 3 penetrates out of the push rod moving slot 14, the moving rod 2 is slidably arranged in the push rod moving slot 14, the push rod moving slot 14 is provided with a rib 28 along the length direction of the moving track 13, and the rib 28 is embedded in a sliding slot 30 of the moving rod 2.
Referring to fig. 7, the cup clamping device comprises a cup clamping cylinder 8, a soft cushion 9, a limiting rod 22, a soft cushion seat 23 and a cup clamping seat 24, wherein the cup clamping seat 24 is fixed on a bottom plate 1 or a moving rail 13, the cup clamping seat 24 is fixed on a vertical rod for mounting a polishing motor 4 as shown in the figure, the cup clamping cylinder 8 is horizontally arranged on the cup clamping seat 24, the cup clamping cylinder 8 is connected with the soft cushion seat 23 in a driving mode, the soft cushion 9 is arranged on the inner side face of the soft cushion seat 23, and the limiting rod 22 penetrates between the soft cushion seat 23 and the cup clamping seat 24.
The cup clamping devices are divided into two groups, when the cup clamping devices move oppositely, the ceramic cup to be polished can be clamped through the soft pad 9, and preparation is made for the polishing motor 4 to drive the polishing head 5 to polish the ceramic cup.
Referring to fig. 8, a connecting shaft 25 is connected to a lower end driving shaft of the polishing motor 4 of the present invention, the connecting shaft 25 is connected to the polishing head 5, a fixing plate is inserted and fixed to the connecting shaft 25, a spring 26 is sleeved on the connecting shaft 25, the spring 26 is located between the fixing plate and the polishing head 5, and a vertical shaft 27 is further inserted between the fixing plate and the polishing head 5. And controlling a polishing head 5 to polish the ceramic cup by a polishing motor 4.
The working principle of the invention is as follows.
Firstly, a ceramic cup is placed on the moving track 13, the push rod 3 is positioned in the ceramic cup, the moving cylinder 10 works to push the push plate 11 forwards, so that the moving rod 2 moves forwards, when the push rod head 38 of the push rod 3 touches the inner wall of the front end of the ceramic cup, the lower convex part 34 of the push rod 3 is rotationally abutted to the baffle shaft 32, the push rod 3 keeps a vertical state, and the ceramic cup is pushed to move to the position below the polishing head 5.
Secondly, the moving cylinder 10 pulls the push plate 11 backwards to reset, the push rod head 38 of the push rod 3 touches the inner wall of the rear end of the ceramic cup, the lower convex part 34 of the push rod 3 is separated from the baffle shaft 32, the push rod head 38 of the push rod 3 rotates anticlockwise to the push rod limiting groove 29, the lower convex part 34 of the push rod 3 resets under the action of gravity until the push rod head 38 bypasses the inner wall of the ceramic cup, and the push rod head 38 restores to the vertical state.
Thirdly, the cup clamping cylinder 8 drives the soft cushion seat 23 to move, so that the soft cushion 9 clamps the ceramic cup.
Fourthly, the lifting cylinder 21 drives the polishing motor 4 to move downwards until the polishing head 5 abuts against the bottom of the ceramic cup, and the polishing motor 4 drives the polishing head 5 to work to polish the ceramic cup.
Fifthly, after polishing, the polishing head 5 is reset, and the cushion seat 23 is reset.
Sixthly, the moving cylinder 10 works to push the push plate 11 forwards, so that the moving rod 2 moves forwards, when the push rod head 38 of the push rod 3 touches the inner wall of the front end of the polished ceramic cup, the lower convex part 34 of the push rod 3 is in rotary contact with the blocking shaft 32, the push rod 3 keeps a vertical state, and the ceramic cup is pushed to move to the ceramic cup conveyor belt 6.
Seventhly, the moving cylinder 10 pulls the push plate 11 backwards to reset.
Eighthly, the conveying motor 15 works to drive the ceramic cup conveying belt 6 to work, and the ceramic cup conveying belt 6 outputs the ceramic cups.
As shown in the figure, the moving rod 2 is provided with two polishing heads 5 and six push rods 3, and the feeding, moving and discharging of the moving rod 2 to the ceramic cup are synchronously carried out. The moving track 13 of the ceramic cup feeder can be directly butted with a ceramic cup production line or is provided with a mechanical arm to automatically feed the ceramic cup, so that the full-flow automatic production can be realized, and the efficiency is very high.
It is to be understood that the above-described embodiments are merely preferred examples of the present invention and are not intended to limit the scope of the invention, so that equivalent changes or modifications in the structure, features and principles of the invention as described in the claims should be included in the claims.
Claims (4)
1. The feeding process for polishing production of ceramic cups is characterized by comprising the following steps: the cup mouth of the ceramic cup is placed on the moving track downwards for feeding; the moving rod is provided with at least two groups of rotating push rods, and the push rod heads of the push rods are movably exposed out of the surface of the moving track; the feeding process at least comprises a ceramic cup pushing process and a moving rod resetting action;
a ceramic cup pushing procedure: the moving rod moves forwards along the moving track, and the inner wall in front of the ceramic cup is pushed by the push rod head exposed out of the moving track to move the ceramic cup;
resetting the movable rod: the moving rod moves backwards along the moving track to reset, the push rod head touches the inner wall of the rear part of the ceramic cup, the push rod head rotates to bypass the inner wall of the ceramic cup and is positioned outside the ceramic cup, and the push rod resets.
2. The feeding process for grinding production of ceramic cups according to claim 1, characterized in that: when the moving rod resets, the push rod head touches the outer wall in the front of the ceramic cup, the push rod head rotates to bypass the outer wall of the ceramic cup and is positioned in the ceramic cup, and the push rod resets.
3. The feeding process for grinding production of ceramic cups according to claim 1, characterized in that: the movable rod moves horizontally and linearly.
4. The feeding process for grinding production of ceramic cups according to claim 1, characterized in that: the push rods are provided with three groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010699726.4A CN111958327A (en) | 2020-07-20 | 2020-07-20 | Feeding process for grinding production of ceramic cups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010699726.4A CN111958327A (en) | 2020-07-20 | 2020-07-20 | Feeding process for grinding production of ceramic cups |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111958327A true CN111958327A (en) | 2020-11-20 |
Family
ID=73360491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010699726.4A Pending CN111958327A (en) | 2020-07-20 | 2020-07-20 | Feeding process for grinding production of ceramic cups |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111958327A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112975648A (en) * | 2021-02-24 | 2021-06-18 | 钟炜 | High-efficient edging device is used in daily necessities shaping |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1357287A (en) * | 1971-04-01 | 1974-06-19 | Setim Soc Detudes Tech Des Ind | Means for slipping rolled products |
| CN201436258U (en) * | 2009-06-12 | 2010-04-07 | 富港电子（东莞）有限公司 | Automatic transmission device |
| CN102815533A (en) * | 2012-07-19 | 2012-12-12 | 东莞市精丽制罐有限公司 | Feeding device of barrel shaping machine |
| CN204643124U (en) * | 2015-05-12 | 2015-09-16 | 深圳市创益五金精密模具有限公司 | Anti-scratch feed mechanism |
| CN107900837A (en) * | 2017-12-29 | 2018-04-13 | 台州市朔翔科技股份有限公司 | A kind of rim of a cup burnishing device |
| CN208246179U (en) * | 2018-03-23 | 2018-12-18 | 常州信息职业技术学院 | Electronic component encapsulation conveying device |
| CN208470974U (en) * | 2018-06-29 | 2019-02-05 | 安徽江淮汽车集团股份有限公司 | A kind of feeding mechanism |
| CN210999659U (en) * | 2019-09-09 | 2020-07-14 | 东莞亚桥精密压铸机械有限公司 | Perforation removes and drapes over one's shoulders cutting edge of a knife or a sword machine |
| CN211003460U (en) * | 2019-09-09 | 2020-07-14 | 东莞亚桥精密压铸机械有限公司 | Product conveying device for perforating and deburring machine |
-
2020
- 2020-07-20 CN CN202010699726.4A patent/CN111958327A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1357287A (en) * | 1971-04-01 | 1974-06-19 | Setim Soc Detudes Tech Des Ind | Means for slipping rolled products |
| CN201436258U (en) * | 2009-06-12 | 2010-04-07 | 富港电子（东莞）有限公司 | Automatic transmission device |
| CN102815533A (en) * | 2012-07-19 | 2012-12-12 | 东莞市精丽制罐有限公司 | Feeding device of barrel shaping machine |
| CN204643124U (en) * | 2015-05-12 | 2015-09-16 | 深圳市创益五金精密模具有限公司 | Anti-scratch feed mechanism |
| CN107900837A (en) * | 2017-12-29 | 2018-04-13 | 台州市朔翔科技股份有限公司 | A kind of rim of a cup burnishing device |
| CN208246179U (en) * | 2018-03-23 | 2018-12-18 | 常州信息职业技术学院 | Electronic component encapsulation conveying device |
| CN208470974U (en) * | 2018-06-29 | 2019-02-05 | 安徽江淮汽车集团股份有限公司 | A kind of feeding mechanism |
| CN210999659U (en) * | 2019-09-09 | 2020-07-14 | 东莞亚桥精密压铸机械有限公司 | Perforation removes and drapes over one's shoulders cutting edge of a knife or a sword machine |
| CN211003460U (en) * | 2019-09-09 | 2020-07-14 | 东莞亚桥精密压铸机械有限公司 | Product conveying device for perforating and deburring machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112975648A (en) * | 2021-02-24 | 2021-06-18 | 钟炜 | High-efficient edging device is used in daily necessities shaping |
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Application publication date: 20201120 |
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| RJ01 | Rejection of invention patent application after publication |