CN212820048U - Abrasive belt cleaning mechanism and grinding equipment - Google Patents
Abrasive belt cleaning mechanism and grinding equipment Download PDFInfo
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- CN212820048U CN212820048U CN202022075447.9U CN202022075447U CN212820048U CN 212820048 U CN212820048 U CN 212820048U CN 202022075447 U CN202022075447 U CN 202022075447U CN 212820048 U CN212820048 U CN 212820048U
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- abrasive belt
- belt
- brush
- roller
- cleaning mechanism
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Abstract
The utility model provides an abrasive band clearance mechanism installs in the equipment of milling, and the equipment of should milling has main cylinder, tensioning roller, sets up the abrasive band in the main cylinder and tensioning roller outside and encircles a plurality of whitening rooms of main cylinder evenly distributed, and the surface in abrasive band is pressed close to a plurality of whitening rooms, a serial communication port, include: the bran scraping component is arranged on the inner side of the abrasive belt, is provided with a scraping plate with one end abutting against the inner side of the abrasive belt and is used for scraping bran on the inner surface of the abrasive belt; and the brush component is arranged on one side of the last whitening chamber in the rotating direction of the main roller, away from other whitening chambers, is positioned between the main roller and the tensioning roller and is close to the main roller, and the bran scraping component and the brush component are positioned on the same side of a connecting line between the centers of the main roller and the tensioning roller.
Description
Technical Field
The utility model relates to a grinding device, concretely relates to abrasive band clearance mechanism and equipment of milling.
Background
A milling apparatus is an apparatus for milling large particulate matter into small particulate matter. For example, a rice mill is a common milling device, which is used to peel brown rice to form polished rice.
When the rice mill mills the brown rice, the milled polished rice and the powdered bran are collected respectively. At present, a dustproof tensioning roller seat is arranged in a rice mill to wrap all whitening chambers, the whitening chambers in the scheme have simple structures, but bran can be scattered and adhered to the inner surface and the outer surface of an abrasive belt in the grinding process. With continuous grinding, the thicker the bran deposited on the surface of the abrasive belt, the more the grinding effect is affected, and the flatness of the inner surface of the abrasive belt may be affected, so that the friction between the abrasive belt and other parts is increased, and the abrasive belt may be torn and the other parts may be worn seriously.
SUMMERY OF THE UTILITY MODEL
For solving above-mentioned problem, provide an abrasive band clearance mechanism and equipment of milling for the interior external surface to the abrasive band clears up, the utility model discloses a following technical scheme:
< Structure I >
The utility model provides an abrasive band clearance mechanism installs in the equipment of milling, and the equipment of should milling has main cylinder, tensioning roller, sets up the abrasive band in the main cylinder and tensioning roller outside and encircles a plurality of whitening rooms of main cylinder evenly distributed, and the surface on abrasive band is pressed close to a plurality of whitening rooms, a serial communication port, include: the bran scraping component is arranged on the inner side of the abrasive belt, is provided with a scraping plate with one end abutting against the inner side of the abrasive belt and is used for scraping bran on the inner surface of the abrasive belt; and the brush component is arranged on one side of the last whitening chamber in the rotating direction of the main roller, away from other whitening chambers, is positioned between the main roller and the tensioning roller and is close to the main roller, and the bran scraping component and the brush component are positioned on the same side of a connecting line between the centers of the main roller and the tensioning roller.
The utility model provides an abrasive band clearance mechanism can also have such characteristic, wherein, scrape the chaff subassembly and still have the scraper blade mount pad, round pin axle and the torsional spring that are used for the fixed connection scraper blade, the tensioning cylinder has the tensioning roller seat, the scraper blade mount pad is rotationally installed on the tensioning roller seat through the round pin axle, the torsional spring cover is sold epaxially, be in compression state, its one end is fixed on the tensioning roller seat, the other end is fixed on the scraper blade mount pad, make the scraper blade on the scraper blade mount pad hug closely at the abrasive band internal surface through the moment of torsion.
The utility model provides an abrasive band cleaning mechanism can also have such characteristic, and wherein, the both ends of round pin axle are equipped with the split pin.
The utility model provides an abrasive band cleaning mechanism can also have such characteristic, and wherein, the brush subassembly still has brush bedplate and locking means, and the brush head can be to the direction removal that is close to or keeps away from the abrasive band to through locking means and brush bedplate fixed connection.
The utility model provides an abrasive band cleaning mechanism can also have such characteristic, wherein, is equipped with first bar hole on one of brush bedplate and brush head, is equipped with the through-hole on another, and locking member is bolt and nut, and the bolt passes first bar hole and through-hole and fixes brush head and brush bedplate locking.
The utility model provides an abrasive band cleaning mechanism can also have such characteristic, and wherein, the brush head has along the perpendicular to its brush hair that extends by the direction of the abrasive band of department, and the length direction in first bar hole is mutually perpendicular with the abrasive band that the brush head supported by the department.
The utility model provides an abrasive band cleaning mechanism can also have such characteristic, and wherein, the brush bedplate has first connecting portion and second connecting portion, and the contained angle between first connecting portion and the second connecting portion is the obtuse angle, and first bar hole sets up on first connecting portion, and grinding device has the frame, is equipped with the second bar hole that is used for being connected with the frame on the second connecting portion to through bolt and frame looks fixed connection.
The utility model provides an abrasive band cleaning mechanism can also have such characteristic, and wherein, the contained angle of the line between scraper blade and main drum and the tensioning roller center is 60.
The utility model provides an abrasive band clearance mechanism can also have such characteristic, and wherein, the scraper blade is the acute angle rather than leaning on the abrasive band advancing direction's of department contained angle.
< Structure two >
The utility model provides a milling equipment, a serial communication port, include:
a main roller, a tension roller sleeve, an abrasive belt arranged at the outer sides of the main roller and the tension roller, an abrasive belt cleaning mechanism which is used for cleaning the abrasive belt and is provided with a plurality of whitening chambers evenly distributed around the main roller,
the abrasive belt cleaning mechanism is an abrasive belt cleaning mechanism in the first structure.
Utility model with the functions and effects
According to the utility model discloses an abrasive band clearance mechanism sets up at the internal surface in abrasive band and scrapes the chaff subassembly, strikes off the chaff of abrasive band internal surface with the scraper blade, sets up the brush subassembly at the surface in abrasive band, cleans the chaff of abrasive band surface with the brush hair. The surface of abrasive band is equipped with the frosting in order to grind brown rice, cleans the frosting through soft brush hair, can guarantee the clean of clearance, prevents that the roughness decline of frosting from influencing and grinding, can not harm the frosting again. The inner surface of the abrasive belt is set to be a smooth surface for conveying with the cylinder body of the main roller and the tensioning cylinder body of the tensioning roller, cleaning is carried out through the scraper, bran deposited on the inner surface of the abrasive belt can be removed to the maximum extent, smoothness of the inner surface of the abrasive belt is guaranteed, and transmission stability is further guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a milling device in an embodiment of the present invention;
FIG. 2 is a partial enlarged view of the bran scraping assembly of the milling device according to the embodiment of the present invention;
fig. 3 is a schematic top view of the bran scraping assembly in the embodiment of the present invention;
figure 4 is an enlarged view of a portion of a grinding apparatus of an embodiment of the present invention at the location of the brush assembly;
FIG. 5 is a schematic view of a brush holder plate according to an embodiment of the present invention;
fig. 6 is a schematic top view of the brush seat plate according to the embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings and examples.
< example >
Fig. 1 is a schematic structural diagram of a milling device in an embodiment of the present invention.
As shown in fig. 1, the present embodiment provides a milling apparatus 100 comprising a drum 10, a tension drum 20, a belt 30, a tension mechanism (not shown), a belt cleaning mechanism 40 and a frame 50.
The drum 10 includes a drum body 11 and a main drum shaft 12. The cylinder 11 is cylindrical and extends in the vertical direction, and the end face of the cylinder is parallel to the horizontal plane. The main drum shaft 12 is arranged at the axis of the drum body in a penetrating way and is used for being driven by the rotary driving mechanism to drive the drum body 11 to rotate.
The tensioning roller 20 comprises a tensioning cylinder 21 and a tensioning roller mount 22.
The tensioning cylinder 21 is cylindrical and extends in the vertical direction, the end face of the tensioning cylinder is parallel to the horizontal plane, and the diameter of the tensioning cylinder is smaller than that of the cylinder 11. The tensioning roller mount 22 is fixedly mounted on the frame 50 and has a tensioning roller shaft (not shown). The tensioning cylinder 21 is rotatably mounted on the tensioning cylinder shaft, and when the tensioning cylinder 21 is rotated, the tensioning cylinder shaft and thus the tensioning cylinder base 22 do not rotate.
In this embodiment, the tension roller base 22 covers a portion of the side of the tension roller body 21, but does not contact the portion of the side. The specific area of the tension roller seat 22 covering the tension roller 21 can be set according to specific requirements, so as not to reduce the contact area between the abrasive belt 30 and the tension roller 21. In this embodiment, the tension roller housing 22 covers the side of the tension roller body 21 near the side 1/3 of the main roller 10.
The abrasive belt 30 is sleeved outside the cylinder body 11 of the main roller 10 and the tension cylinder body 21 of the tension roller 20 to form a complete abrasive roller structure. The area where sanding belt 30 surrounds cylinder 11 and tensioning roller 20 is formed as the inside of sanding belt 30, sanding belt 30 rotating in direction a, i.e. counter-clockwise as seen in fig. 1. The coated belt 30 is a rough surface for contacting with the brown rice to grind.
A plurality of whitening chambers (not shown in the figure) which are uniformly distributed along the circumferential direction and are close to the abrasive belt 30 are arranged on the outer side of the abrasive belt 30 on the circumferential surface of the cylinder body 11, a feed inlet is arranged at the top of the cylinder body 11, and a rice outlet and a bran outlet are arranged at the bottom of the cylinder body. A pipeline communicated with the rice outlet is arranged below each whitening chamber, the brown rice enters the whitening chambers through the feeding holes to be milled, the brown rice moves from top to bottom and is driven by the abrasive belt 30 to rotate, and therefore all surfaces of the brown rice are ground into fine rice by the abrasive belt 30 and fall into a pipeline communicated with the rice outlet. The bottom of the cylinder body is also provided with a funnel-shaped bran collecting chamber communicated with the bran outlet, and the milled powdery bran is taken out of the whitening chamber by the abrasive belt 30, falls into the bran collecting chamber and is separated from the bran outlet. In fig. 1 is shown the last whitening chamber B, which is located in the direction of rotation of the drum 11, near the position where the drum 11 starts to separate from the sanding belt.
And a tensioning roller seat for wrapping all the whitening chambers is arranged on the outer side of the abrasive belt 30 at the barrel body 11 and used for preventing bran from flying out.
The tensioning mechanism is used to adjust the distance between tensioning cylinder 21 and cylinder 11 so that sanding belt 30 is in tension, ensuring that sanding belt 30 can follow the rotation of cylinder 11.
In this embodiment, the brush assembly 42 is disposed at a side of the last whitening chamber B far from the other whitening chambers in the rotation direction of the main drum 10 near the main drum 10, that is, as shown in fig. 1, the main drum 10 rotates in the counterclockwise direction, and the brush assembly 42 is disposed at the left side of the whole of the grinding apparatus 100 at a position where the sanding belt is separated from the drum 11 near the main drum 10. The bran scraping component 41 and the brush component 42 are positioned on the same side of a connecting line M between the center of the tensioning cylinder 21 and the center of the cylinder 11.
Fig. 2 is a partial enlarged view of the position of the bran scraping component in the milling device in the embodiment of the present invention. Fig. 3 is a schematic top view of the bran scraping assembly in the embodiment of the present invention.
As shown in fig. 2 and 3, the bran scraping assembly 41 includes a scraper mounting seat 411, a pin 412, a torsion spring 413, a cotter 414 and a scraper 415.
The cross section of the scraper mounting seat 411 is in an L shape, a first pin mounting part 411a for mounting the pin 412 is arranged, and a second pin mounting part 22a matched with the first pin mounting part 411a and used for mounting the pin 412 is arranged on the tensioning roller seat 22. The first pin mounting portion 411a and the second pin mounting portion 22a are provided with through holes for the pin 412 to pass through, so that the scraper mounting seat 411 is rotatably connected to the tension roller seat 22 through the pin 412. In this embodiment, the squeegee mount 411 is connected to the tension roller mount 22 by three pins 412.
The torsion spring 413 is sleeved on the pin shaft 412 at the two ends of the scraper mounting seat 411 and is located between the first pin shaft mounting part 411a and the second pin shaft mounting part 22 a. The torsion spring 413 has a torsion arm at each end, one of the torsion arms abuts against the outer surface of the tensioning roller seat 22, the other torsion arm abuts against the scraper mounting seat 411, and the torsion spring 413 stores the compression state, and applies a torque in the counterclockwise direction in the direction shown in fig. 2 to the scraper mounting seat 411 through the torque, so that the scraper mounting seat 411 has a tendency of rotating counterclockwise.
Cotter pins 414 are provided at both ends of each pin shaft 412 for limiting the pin shaft 412 and preventing the pin shaft 412 from slipping off from the first pin shaft mounting part 411a and the second pin shaft mounting part 22 a.
The angle α between the scraper 415 and the direction of movement of the abrasive belt 30 against which it abuts is acute, and in this embodiment the angle β between the scraper 415 and the line M between the centre of the end face of the tensioning cylinder 21 and the centre of the end face of the cylinder 11 is 60 °.
Figure 4 is a close-up view of a brush assembly in an exemplary embodiment of the invention.
As shown in fig. 4, the brush assembly 42 includes a brush holder plate 421 provided on the frame 50, a brush head 422 provided on the brush holder plate 421 and abutting on the outer surface of the abrasive belt 30, and a locking member 423 connecting the brush holder plate 421 and the brush head 422.
Fig. 5 is a schematic structural view of a brush seat plate according to an embodiment of the present invention. Fig. 6 is a schematic top view of the brush seat plate according to the embodiment of the present invention.
As shown in fig. 5 and 6, the brush seat plate 421 has a first connecting portion 421a for connecting with the brush head 422 and a second connecting portion 421b for connecting with the frame 50, and the first connecting portion 421a and the second connecting portion 421b form an included angle with each other.
The first connecting portion 421a is perpendicular to the abrasive belt 30 where the bristle 422 abuts, and is provided with a first strip-shaped hole 421c, and the length direction of the first strip-shaped hole 421c is also perpendicular to the abrasive belt 30 where the bristle 422 abuts. The brush head 422 is provided with a through hole, the locking member 423 comprises a second bolt 423a and a nut 423b, and the second bolt 423a passes through the through hole and the first strip-shaped hole 421c to fixedly connect the brush head 422 and the brush seat plate 421. Bristles 422 can be moved in a direction perpendicular to sanding belt 30 to move closer to or further away from sanding belt 30.
The second connecting portion 421b is provided with a second strip-shaped hole 421d extending along the length direction of the second connecting portion 421b, a threaded hole 51 is provided at a position of the frame 50 for installing the brush seat plate 421, and the locking member 423 further includes a second bolt 423c, wherein the second bolt 423c passes through the second strip-shaped hole 421d and is screwed with the threaded hole 51, so as to fixedly connect the brush seat plate 421 with the frame 50. The brush holder plate 421 can be moved in the length direction of the second bar hole 421b to be close to or far from the sanding belt 30.
After the position of tensioning cylinder 21 is adjusted by the tensioning mechanism, the position of abrasive belt 30 is changed, resulting in a change in the distance between abrasive belt 30 and brush head 422, and at this time, by loosening first bolt 423a and second bolt 423c, moving brush base plate 421 along the length direction of second strip-shaped hole 421b and moving brush head 422 in the direction perpendicular to abrasive belt 30, the distance between brush head 422 and abrasive belt 30 can be changed, so that brush head 422 is attached to the surface of abrasive belt 30 again.
Examples effects and effects
In the abrasive belt cleaning mechanism provided by this embodiment, the inner surface of the abrasive belt is provided with the bran scraping component, the bran on the inner surface of the abrasive belt is scraped by the scraping plate, the outer surface of the abrasive belt is provided with the brush component, and the bran on the outer surface of the abrasive belt is cleaned by the brush hair. The surface of abrasive band is equipped with the frosting in order to grind brown rice, cleans the frosting through soft brush hair, can guarantee the clean of clearance, prevents that the roughness decline of frosting from influencing and grinding, can not harm the frosting again. The inner surface of the abrasive belt is set to be a smooth surface for conveying with the cylinder body of the main roller and the tensioning cylinder body of the tensioning roller, cleaning is carried out through the scraper, bran deposited on the inner surface of the abrasive belt can be removed to the maximum extent, smoothness of the inner surface of the abrasive belt is guaranteed, and transmission stability is further guaranteed.
The abrasive belt cleaning mechanism provided by the embodiment has the advantages that the brush assembly is arranged on one side, away from other whitening chambers, of the last whitening chamber in the rotation direction of the main roller and close to the main roller, so that after the abrasive belt grinds brown rice in all the whitening chambers, bristles in the brush assembly immediately clean the abrasive belt, most of bran dust can be effectively prevented from entering the rear end of grinding equipment, namely the position of the tensioning roller, and the cleanness of other mechanisms, close to the tensioning roller, of the tensioning roller is guaranteed, for example, the tensioning mechanism and the like in the embodiment.
The abrasive belt cleaning mechanism provided by the embodiment is characterized in that the bran scraping component and the brush component are positioned on the same side of a connecting line between the main roller and the center of the tensioning roller, namely, are close to the main roller, so that the bran scraping component cleans the inner surface of the abrasive belt before the abrasive belt is contacted with the tensioning roller after milling the brown rice in all the milling chambers, and most of bran dust can be effectively prevented from entering the rear end of the milling equipment.
The abrasive belt cleaning mechanism that this embodiment provided, the scraper blade sets up on the scraper blade mount pad, and the scraper blade mount pad rotationally connects on tensioning roller mount pad through the round pin axle, and be equipped with the torsional spring at the round pin epaxial, under the moment of torsion of torsional spring, exert a power that makes the scraper blade mount pad have the rotation trend to the scraper blade mount pad, make the scraper blade of installing on the scraper blade mount pad tightly support and lean on the internal surface in abrasive belt, consequently, no matter how remove the tensioning barrel through straining device, the one end of scraper blade is all the time with abrasive belt internal surface looks butt, can shovel off the sedimentary chaff in abrasive belt internal surface.
The abrasive belt cleaning mechanism that this embodiment provided, the brush head that has the brush hair is through first bolt and nut and brush bedplate fixed connection, is equipped with first bar hole on the first connecting portion of brush bedplate for the brush head can be followed the length direction in first bar hole and removed, that is to say, can adjust the position of brush head, thereby when the position that changes the tensioning barrel through straining device leads to the distance between abrasive belt and the brush hair to change, make the brush hair be connected with the surface on abrasive belt all the time.
In addition, a second strip-shaped hole is formed in the second connecting portion of the brush seat plate, and the brush seat plate is fixedly connected to the rack through a second bolt, so that the brush seat plate can also be adjusted in position relative to the rack, and bristles are always connected with the outer surface of the abrasive belt.
According to the abrasive belt cleaning mechanism provided by the embodiment, the bristles are perpendicular to the abrasive belt at the abutting position, at the moment, the bristles can clean the outer surface of the abrasive belt more easily, and the included angle between the scraper and the front direction of the abrasive belt at the abutting position is an acute angle, so that the scraper can shovel bran adhered to the inner surface of the abrasive belt against the advancing direction of the abrasive belt.
The above embodiments are merely illustrative of specific embodiments of the present invention, and the present invention is not limited to the description of the above embodiments.
In this embodiment, scrape chaff subassembly fixed mounting on tensioning roller seat, in other embodiments, also can set up the support frame with frame looks fixed connection, will scrape the chaff subassembly and install on the support frame, with tensioning roller seat looks independent setting.
Claims (10)
1. A belt cleaning mechanism mounted in a grinding apparatus having a main drum, a tensioning drum, a belt disposed outside of said main drum and said tensioning drum, and a plurality of whitening chambers evenly distributed around said main drum, proximate an outer surface of said belt, comprising:
the bran scraping component is arranged on the inner side of the abrasive belt, is provided with a scraping plate with one end abutting against the inner side of the abrasive belt and is used for scraping bran on the inner surface of the abrasive belt; and
the brush component is arranged at the outer side of the abrasive belt, is provided with a brush head with one end abutting against the outer side of the abrasive belt and is used for cleaning bran on the outer surface of the abrasive belt,
wherein the brush component is arranged on one side of the last whitening chamber far away from other whitening chambers along the rotation direction of the main roller, is positioned between the main roller and the tensioning roller and is close to the main roller,
the bran scraping component and the hairbrush component are positioned on the same side of a connecting line between the main roller and the center of the tensioning roller.
2. The belt cleaning mechanism of claim 1, wherein:
wherein the bran scraping component is also provided with a scraper mounting seat, a pin shaft and a torsion spring which are used for fixedly connecting the scraper,
the tensioning roller is provided with a tensioning roller seat,
the scraper mounting seat is rotatably arranged on the tensioning roller seat through the pin shaft,
the torsional spring is sleeved on the pin shaft and is in a compressed state, one end of the torsional spring is fixed on the tensioning roller base, the other end of the torsional spring is fixed on the scraper mounting base, and the scraper on the scraper mounting base is tightly attached to the inner surface of the abrasive belt through torque.
3. The belt cleaning mechanism of claim 2, wherein:
and split pins are arranged at two ends of the pin shaft.
4. The belt cleaning mechanism of claim 1, wherein:
wherein the brush assembly further has a brush holder plate and a locking member,
the brush head can move towards the direction close to or far away from the abrasive belt and is fixedly connected with the brush seat plate through the locking component.
5. The belt cleaning mechanism of claim 4, wherein:
wherein one of the brush seat board and the brush head is provided with a first strip-shaped hole, the other is provided with a through hole,
the locking component is a bolt and a nut, and the bolt penetrates through the first strip-shaped hole and the through hole to lock and fix the brush head and the brush base plate.
6. The belt cleaning mechanism of claim 5, wherein:
wherein the bristle has bristles extending in a direction perpendicular to the sanding belt against which it rests,
the length direction of the first strip-shaped hole is perpendicular to the abrasive belt at the position where the brush head abuts against.
7. The belt cleaning mechanism of claim 5, wherein:
wherein the brush seat plate is provided with a first connecting part and a second connecting part, an included angle between the first connecting part and the second connecting part is an obtuse angle,
the first strip-shaped hole is arranged on the first connecting part,
the milling equipment is provided with a rack, and the second connecting part is provided with a second strip-shaped hole used for being connected with the rack and fixedly connected with the rack through a bolt.
8. The belt cleaning mechanism of claim 1, wherein:
wherein the included angle between the scraper and a connecting line between the main roller and the center of the tensioning roller is 60 degrees.
9. The belt cleaning mechanism of claim 1, wherein:
wherein, the included angle between the scraper and the advancing direction of the abrasive belt at the abutting position is an acute angle.
10. A milling apparatus, comprising:
a main roller, a tension roller sleeve, an abrasive belt arranged outside the main roller and the tension roller, a plurality of whitening chambers evenly distributed around the main roller and an abrasive belt cleaning mechanism used for cleaning the abrasive belt,
wherein the belt cleaning mechanism is as claimed in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022075447.9U CN212820048U (en) | 2020-09-21 | 2020-09-21 | Abrasive belt cleaning mechanism and grinding equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022075447.9U CN212820048U (en) | 2020-09-21 | 2020-09-21 | Abrasive belt cleaning mechanism and grinding equipment |
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| Publication Number | Publication Date |
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| CN212820048U true CN212820048U (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022075447.9U Active CN212820048U (en) | 2020-09-21 | 2020-09-21 | Abrasive belt cleaning mechanism and grinding equipment |
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| CN (1) | CN212820048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113058680A (en) * | 2021-04-16 | 2021-07-02 | 哈尔滨工程北米科技有限公司 | Leave embryo rice processingequipment |
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2020
- 2020-09-21 CN CN202022075447.9U patent/CN212820048U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113058680A (en) * | 2021-04-16 | 2021-07-02 | 哈尔滨工程北米科技有限公司 | Leave embryo rice processingequipment |
| CN113058680B (en) * | 2021-04-16 | 2022-09-30 | 哈尔滨工程北米科技有限公司 | Leave embryo rice processingequipment |
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