CN214439318U - Go out grain adjustment mechanism and equipment of milling - Google Patents

Abstract

The utility model provides a go out grain adjustment mechanism and equipment of milling, the equipment of milling have main cylinder, tensioning roller, set up in the abrasive band in main cylinder and tensioning roller outside and encircle a plurality of whitening chambers of main cylinder, the whitening chamber has the chamber of milling that mills with the abrasive band cooperation, grinds chamber bottom and exports for the chamber of milling, goes out grain adjustment mechanism and includes: at least one rotating plate installed at an outlet of the grinding chamber; the telescopic rod is arranged on the outer side of the whitening chamber and is telescopic along the vertical direction; and the linkage assembly is connected with the rotating plate at one end and the telescopic rod at the other end, so that the rotating plate rotates when the telescopic rod stretches along the vertical direction, and the size of the outlet of the grinding cavity is changed. Thereby adjust the chamber export size of grinding through the rotation that the linkage subassembly turns into the rotation of rotor plate with the concertina movement of telescopic link, realize adjusting respectively the velocity of flow of the grain of grinding in each whitening chamber.

Description

Go out grain adjustment mechanism and equipment of milling

Technical Field

The utility model belongs to the grain field of milling relates to a go out grain adjustment mechanism and contain this grain adjustment mechanism's 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.

The main structure of the rice mill for milling rice is a main roller, a tensioning roller, an abrasive belt sleeved outside the main roller and the tensioning roller, and a whitening chamber surrounding the periphery of the main roller and close to the abrasive belt, wherein a gap is arranged between each whitening chamber. During the milling process, the brown rice enters the whitening chamber through the feeding hole to be milled, the abrasive belt mills the brown rice to form polished rice and bran, the polished rice is collected through the discharging hole at the bottom of the whitening chamber, the bran is similar to dust in state, can fly out of the whitening chamber along with the movement of the abrasive belt after being milled, and flies out of the surface of the abrasive belt in a scattered manner, and needs to be collected through the bran outlet at the bottom of the main roller.

In the prior art, milling equipment can be used to mill various types of food grains. The different types of food grains have different requirements for milling, and in particular the milling time required can be considered to be different. But because the length of the whitening chamber is fixed, the requirement of different grains on the milling time length is difficult to meet by adjusting the length of the whitening chamber. Moreover, the milling equipment comprises a plurality of whitening chambers, and the conditions of milling the grain in each whitening chamber can be different, and if the flow rate of the grain in each whitening chamber is the same, the grain is not beneficial to full milling.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned problem, provide a go out grain adjustment mechanism, can adjust the velocity of flow of the indoor grain of whitening through the size of adjusting the export of grinding chamber, the utility model discloses a following technical scheme:

the utility model provides a go out grain adjustment mechanism installs in the equipment of milling, and the equipment of milling has the main cylinder of vertical setting, tensioning roller, sets up at the abrasive band in the main cylinder and tensioning roller outside and encircle a plurality of whitening rooms of main cylinder evenly distributed, and the whitening room has the chamber of milling that mills with the abrasive band cooperation, and the chamber of milling bottom exports its characterized in that for milling, include: at least one rotating plate installed at an outlet of the grinding chamber; the telescopic rod is arranged on the outer side of the whitening chamber and is telescopic along the vertical direction; and the linkage assembly is connected with the rotating plate at one end and the telescopic rod at the other end, so that the rotating plate rotates when the telescopic rod stretches along the vertical direction, and the size of the outlet of the grinding cavity is changed.

The utility model provides a go out grain adjustment mechanism can also have such characteristic, still includes: and the outlet part is arranged at the outlet of the grinding cavity and communicated with the grinding cavity, and the rotating plate is provided with a rotating end rotatably arranged in the outlet part and a free end opposite to the rotating end.

The utility model provides a go out grain adjustment mechanism can also have such characteristic, wherein, two rotor plates set up relatively, be first rotor plate and second rotor plate respectively, first rotor plate has corresponding first rotation end and first free end, the second rotor plate has corresponding second rotation end and second free end, first rotation end and second rotation end set up mutually, first rotor plate and second rotor plate rotate simultaneously through the linkage subassembly and make first free end and second free end butt or separation of each other.

The utility model provides a go out grain adjustment mechanism, can also have such characteristic, wherein, the linkage subassembly is including the first connecting rod and the second connecting rod that set up in pairs, the one end of two first connecting rods respectively with first rotation end and second rotation end fixed connection, and contained angle between first connecting rod and the rotor plate that corresponds is the acute angle, the other end of two first connecting rods extends to the direction that is close to each other respectively, and rotationally connect the one end at the second connecting rod that corresponds, two second connecting rods extend to the direction that is close to the telescopic link, and the other end of two second connecting rods is pressed close to each other and rotationally connects the lower extreme at the telescopic link.

The utility model provides a go out grain adjustment mechanism can also have such characteristic, still includes: the induction sheet is fixedly arranged on the telescopic rod; the first photoelectric switch is arranged at the position corresponding to the sensing piece when the first free end and the second free end are mutually abutted, and the second photoelectric switch is arranged at the position corresponding to the sensing piece when the first free end and the second free end are vertically downward.

The utility model provides a go out grain adjustment mechanism can also have such characteristic, and wherein, thereby the export department has and cooperatees with the rotor plate and carries out confined butt portion to the chamber export of milling, rotates the rotatable one end of keeping away from butt portion in the export portion of end of installing for the rotor plate is rotating the in-process, and the free end removes to the direction that is close to or keeps away from butt portion, and then changes the size of the chamber export of milling.

The utility model provides a go out grain adjustment mechanism, can also have such characteristic, wherein, the linkage subassembly includes dwang and guiding piece, the one end fixed connection of dwang is served in the rotation of rotor plate, guiding piece one end fixed mounting is in the lower part of telescopic link, the other end extends and this end has the bar groove that extends along the extending direction of guiding piece to the direction that is close to the rotor plate, the other end of dwang is rotationally connected in the bar groove through the pivot, make the dwang revolute the link of pole and rotor plate and rotate when the guiding piece is driven by the telescopic link and reciprocates, and then make the rotor plate rotate.

The utility model provides a go out grain adjustment mechanism can also have such characteristic, still includes: the induction sheet is fixedly arranged on the telescopic rod; the first photoelectric switch is arranged at the position corresponding to the sensing piece when the free end is abutted against the abutting part, and the second photoelectric switch is arranged at the position corresponding to the sensing piece when the free end is vertically downward.

The utility model provides a go out grain adjustment mechanism can also have such characteristic, still includes: the driving piece is used for driving the telescopic rod to stretch.

The utility model provides a milling equipment, a serial communication port, include: a frame; the main roller is vertically arranged on the rack; the tensioning roller is vertically arranged on the rack and is opposite to the main roller; the abrasive belt is tightly sleeved on the outer sides of the main roller and the tensioning roller; the grinding chamber is uniformly distributed around the main roller and is provided with a grinding cavity matched with the abrasive belt for grinding grains to be ground, and the bottom of the grinding cavity is provided with a grinding cavity outlet; and the grain discharging adjusting mechanism is used for adjusting the size of the outlet of the grinding cavity, wherein the grain discharging adjusting mechanism is the grain discharging adjusting mechanism.

Utility model with the functions and effects

According to the utility model discloses a go out grain adjustment mechanism and contain this grain adjustment mechanism's equipment of milling, wherein, go out grain adjustment mechanism and including installing the rotor plate in the chamber exit of milling, install the linkage subassembly in the outdoor side of whitening, thereby open and seal the chamber export of milling through the rotation that the linkage subassembly turned into the rotor plate with the concertina movement of telescopic link, through adjusting the chamber export size of milling and realized the regulation to the size of the velocity of flow of the grain of milling. In addition, each whitening chamber is provided with a corresponding grain outlet adjusting mechanism, so that the size of the outlet of the grinding cavity of each whitening chamber can be respectively adjusted.

Drawings

Fig. 1 is a schematic perspective view of a milling device according to a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a main roller, a tension roller and a sanding belt according to a first embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of a whitening chamber at a grain discharge adjusting mechanism according to a first embodiment of the present invention;

fig. 4 is a schematic structural view of the grain discharging adjusting mechanism of the first embodiment of the present invention when the outlet of the grinding chamber is completely opened;

FIG. 5 is a schematic structural view of a grain discharging adjusting mechanism of the first embodiment of the present invention when the outlet of the grinding chamber is partially opened;

fig. 6 is a schematic structural view of a grain discharging adjusting mechanism of the first embodiment of the present invention when the outlet of the grinding chamber is completely closed;

fig. 7 is a schematic structural view of the second embodiment of the present invention when the grain outlet adjusting mechanism completely opens the outlet of the grinding chamber;

fig. 8 is a schematic structural view of a grain discharging adjusting mechanism in the second embodiment of the present invention when the outlet of the grinding chamber is partially opened;

fig. 9 is a schematic structural view of the second embodiment of the present invention when the grain outlet adjusting mechanism completely closes the outlet of the grinding chamber.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings and examples.

< example one >

Fig. 1 is a schematic perspective view of a milling device according to a first embodiment of the present invention. Fig. 2 is a schematic structural diagram of a main roller, a tension roller and an abrasive belt according to a first embodiment of the present invention.

As shown in fig. 1 and 2, the present embodiment provides a milling apparatus 100 for milling grain, which includes a frame 10, a main roller 20, a tension roller 30, a sand belt 40, a feeding mechanism 50, a discharging mechanism (not shown), a plurality of whitening chambers 60, and a grain discharging adjusting mechanism 70 (not shown in fig. 1 and 2).

In this embodiment, the milled grain is brown rice, and the milling device is used to mill the brown rice to form polished rice, and the following description will be given in detail by taking milling of the brown rice as an example.

The frame 10 has a base 11, 2 uprights 13 and a discharge mechanism mounting 14.

The base 11 is placed subaerial, is the rectangle, and its ground four corners is equipped with 4 pillars that are used for supporting the base for other parts of installation base 11.

2 stand 13 are hollow structure, set up on base 11, are located two adjacent edges and corners of base 11 respectively.

The discharging mechanism mounting table 14 is provided on the base 11. The cross section of the discharging mechanism mounting table 14 is arc-shaped, and the radian of the discharging mechanism mounting table is larger than 180 degrees. The top of the discharging mechanism mounting table 14 is a mounting platform parallel to the horizontal plane, and the mounting platform is connected with the upright column 13 and is perpendicular to the connecting surface.

The main drum 20 includes a main cylinder 21 and a main drum shaft 22. The main cylinder 21 is cylindrical, extends in the vertical direction, has an end surface parallel to the horizontal plane, and is disposed on the top of the discharging mechanism mounting table 14. The main drum shaft 22 is inserted through the axis of the main drum 21, connected to a motor for driving the main drum 21 to rotate, and driven by the motor to drive the main drum 21 to rotate.

The tension drum 30 includes a tension cylinder 31 and a housing 32.

The tension cylinder 31 has a cylindrical shape, a diameter smaller than that of the main cylinder 21, and an end surface parallel to the end surface of the main cylinder 21 of the main drum 20. The housing 32 is rotatably connected to the tensioning cylinder 31, i.e. the housing 32 does not follow the rotation when the tensioning cylinder 31 is rotated. The cover 32 forms a half-enclosed structure with respect to the tension cylinder 31, specifically, the cover 32 covers a part of the side surface of the tension cylinder 31, but the inner side surface of the cover 32 close to the tension cylinder 31 does not come into contact with the tension cylinder 31 when the tension cylinder 31 rotates. The specific area of the cover 32 covering the tension cylinder 31 can be set according to specific requirements, and it is preferable that the contact area between the abrasive belt 40 and the tension cylinder 31 is not reduced. In the present embodiment, the cover 32 covers 50% of the side surface of the tension cylinder 31 near the main drum 20.

The 2 columns are axisymmetrical with respect to a line connecting the center of the main cylinder 21 and the center of the tension cylinder 31.

The abrasive belt 40 is sleeved outside the main cylinder 21 of the main roller 20 and the tension cylinder 31 of the tension roller 30 to form a complete abrasive roller structure. The area where the sanding belt 40 surrounds the cylinder 21 and the tensioning roller 30 is formed inside the sanding belt 40 and, conversely, outside the sanding belt 40. The sanding belt 40 is a rough surface for contact with the brown rice for grinding.

The top of the main cylinder 11 is provided with a feeding mechanism 50, and the feeding mechanism 50 is provided with 12 feeding passages.

The bottom of the main cylinder 11 is provided with a discharging mechanism which is provided with 12 discharging passages corresponding to the discharging ports 43 of the 12 whitening chambers 40 and a bran discharging passage arranged between two adjacent discharging passages. The discharging passage is communicated with the whitening chamber 40 through a rice outlet on the mounting platform, and the bran discharging passage is communicated with a bran outlet on the mounting platform and used for collecting bran fallen off after the brown rice is ground.

A plurality of whitening chambers 60 which are evenly arranged along the circumferential direction and are close to the abrasive belt 40 are arranged on the outer side of the abrasive belt 40 on the circumferential surface of the main cylinder 11. A gap is formed between two adjacent whitening chambers 60. In this embodiment, 12 whitening chambers 60 are uniformly distributed outside the abrasive belt 40.

Fig. 3 is a partial sectional view of the whitening chamber at the grain discharge adjusting mechanism in the first embodiment of the present invention.

As shown in fig. 3, the whitening chamber 60 has a grinding chamber 61.

The grinding chamber 61 is a vertically extending channel formed by the attachment of the grinding chamber 60 to the sanding belt 40 and the cooperation with the inner surface of the sanding belt 40. The bottom of the milling chamber 61 is the milling chamber outlet.

The inlet of the milling chamber 61 is in communication with the feed mechanism 50 and the outlet of the milling chamber 61 is in communication with the discharge mechanism. The brown rice enters the grinding chamber 61 from the feeding mechanism 50, is continuously ground in the grinding chamber 61 along with the high-speed rotation of the abrasive belt 40, and then falls from the grinding chamber 61 to the discharging mechanism for bran separation and collection.

The grain discharging adjusting mechanism 70 includes an outlet portion 71, two rotating plates (i.e., a first rotating plate 72 and a second rotating plate 73), a driving member 74, a telescopic rod 75, a linkage assembly 76, a sensing piece 77, a first photoelectric switch 78, a second photoelectric switch 79, and a control module (not shown).

An outlet port 71 is provided at the grinding chamber outlet, communicating with the grinding chamber 61. The outlet portion 71 of the first embodiment is a structure having a smaller diameter than the milling chamber 61 at the outlet of the milling chamber.

A first rotating plate 72 and a second rotating plate 73 are rotatably mounted at the outlet of the milling chamber, in particular inside the outlet portion 71. The first rotating plate 72 is arranged opposite to the second rotating plate 73 and can open or close the grinding chamber outlet during rotation.

The first rotation plate 72 has a first rotation end 721 rotatably mounted in the outlet portion 71 and a first free end 722 opposite to the first rotation end 721. The second rotating plate 73 has a second rotating end 731 rotatably installed in the outlet portion 71 and a second free end 732 opposite to the second rotating end 731. That is, the first free end 722 and the second free end 732 are close to each other, and the first rotating end 721 and the second rotating end 731 are far from each other.

In this embodiment, driving member 74 is a stepper motor fixedly mounted on the outer wall of the whitening chamber 60 and located on the side of the whitening chamber 60 away from the sanding belt 40. The driving member 74 is electrically connected to the control module, and the control module controls the driving member 74 to operate.

The telescopic link 75 is connected at step motor's lower extreme, is located the outside of whitening room 60, can stretch out and draw back along vertical direction under step motor's drive, that is to say, control module can control telescopic link 75 and reciprocate.

Fig. 4 is a schematic structural view of the grain discharging adjusting mechanism of the first embodiment of the present invention when the outlet of the grinding chamber is completely opened.

As shown in fig. 4, the first rotating plate 72 and the second active plate 73 are located at the fully opened position.

The linkage assembly 76 connects the telescopic rod 75 and the two rotating plates, and converts the up-and-down movement of the telescopic rod into forward and reverse rotation of the rotating plates.

The linkage assembly 76 includes a first link 761 and a second link 762 arranged in pairs. One end of each of the two first connecting rods 761 is fixedly connected to the first rotating end 721 and the second rotating end 731, respectively, and an included angle between each of the first connecting rods 761 and the corresponding rotating plate is an acute angle. The other ends of the two first links 761 extend in directions approaching each other and are rotatably connected to one ends of the corresponding second links 762, the two second links 762 extend in directions approaching the telescopic link 75, and the other ends of the two second links 762 are adjacent to each other and rotatably connected to the lower end of the telescopic link 75.

When the telescopic rod 75 extends and retracts up and down, the two second links 762 are pushed to move up and down, and the two first links 761 rotatably connected to the second links 762 are further pushed to rotate in opposite directions (for example, when the left first link 761 rotates counterclockwise as shown in fig. 4, the right first link 761 rotates clockwise), and finally, the first rotation plate and the second rotation plate fixedly connected to the first links 761 rotate.

The sensing piece 77 is fixedly installed on the extension bar 75 and extends in a direction perpendicular to the extension bar 75.

The first photoelectric switch 78 is fixedly mounted on the outer side wall of the whitening chamber 60 and is disposed at a position corresponding to the sensing piece 77 when the first free end 722 and the second free end 732 abut against each other. In the first embodiment, when the sensing piece 77 moves up and down along with the extension rod 75, the sensing piece 77 is located at the highest point when the first free end 722 and the second free end 732 abut against each other.

The second photoelectric switch 79 is fixedly installed on the outer sidewall of the whitening chamber 60 and is disposed at a position corresponding to the sensing piece 77 when the first free end 722 and the second free end 732 are both vertically downward. In the first embodiment, in the process that the sensing piece 77 moves up and down along with the telescopic rod 75, the sensing piece 77 is located at the lowest point when the first free end 722 and the second free end 732 both face vertically downwards.

That is, the second photoelectric switch 79 is located below the first photoelectric switch 78. The distance between the first and second photoelectric switches 78 and 79 corresponds to the stroke of the two rotating plates from fully open to fully closed.

The control unit is electrically connected to the driver 74, the first opto-electronic switch 78 and the second opto-electronic switch 79. The first and second photoelectric switches 78 and 79 measure distances from the sensing piece 77 and transmit electric signals to the control unit. The control unit judges the degree of opening of the outlet of the grinding chamber according to the positions of the sensing pieces 77 sensed by the first photoelectric switch 78 and the second photoelectric switch 79, controls the driving piece 74 to push the telescopic rod 75 to stretch, and further controls the two rotating plates to rotate so as to change the opening size of the outlet of the grinding chamber.

Specifically, the control unit obtains the total number of harmonic quantity in the stroke from full closing to full opening of the two rotating plates, calculates the harmonic quantity of 1% stroke, then senses the position of the sheet 77 by controlling the harmonic quantity, and further controls the opening and closing positions of the two rotating plates, thereby changing the size of the outlet of the grinding cavity.

Fig. 5 is a schematic structural view of a grain outlet adjusting mechanism of the first embodiment of the present invention when the outlet of the grinding chamber is partially opened.

As shown in fig. 4 and 5, when the telescopic rod 75 extends to the bottom, the sensing piece 77 and the second photoelectric switch 79 are opposite, and the two rotating plates are completely opened. When the telescopic rod 75 is driven by the driving member 74, the upward movement drives the second connecting rod 762 rotatably connected to the telescopic rod 75 to move upward, so that the first connecting rod 761 on the left side rotates counterclockwise as shown in fig. 4, and the first connecting rod 761 on the right side rotates clockwise, so that the first rotating plate 72 rotates counterclockwise from the vertically downward position, and the second rotating plate 73 rotates clockwise from the vertically downward position, and finally, a state as shown in fig. 5 is formed, so that the rice milling chamber outlet is reduced, that is, the outlet of the milling chamber is partially opened. At this time, the sensing piece 77 is located between the first and second photoelectric switches 78 and 79.

Fig. 6 is a schematic structural view of a grain discharging adjusting mechanism of the first embodiment of the present invention when the outlet of the grinding chamber is completely closed.

When the two rotating plates are in the partially open position as shown in fig. 5, the telescopic rod 75 continues to move upwards, so that the second link 762 continues to bring the first link 761 and the two rotating plates into a position in which they abut against each other, thus completely closing the milling chamber outlet, i.e. in the condition shown in fig. 6. At this time, the sensing piece 77 is located at a position opposite to the first photoelectric switch 78, and the two rotating plates are not parallel but form an angle therebetween.

Effect of the first embodiment

The grain adjustment mechanism and contain this grain adjustment mechanism's equipment of milling that goes out that this embodiment provided, wherein, it includes two rotor plates of installing in the chamber exit that grinds to go out grain adjustment mechanism, install the telescopic link in the outdoor side of mill and connect the linkage subassembly of telescopic link and two rotor plates, thereby open and seal the chamber exit of milling through the rotation that the linkage subassembly turned into two rotor plates with the concertina movement of telescopic link, chamber exit size has been milled through the regulation and has been realized the regulation to the size of the velocity of flow of the grain of milling.

In addition, because every whitening chamber all is provided with a corresponding grain adjustment mechanism, can realize adjusting respectively the chamber outlet size of milling of each whitening chamber, that is to say, can adjust the velocity of flow size of grain in each whitening chamber respectively through grain adjustment mechanism according to the condition of milling in the whitening chamber.

In addition, the linkage assembly comprises a first connecting rod and a second connecting rod which are paired and connected in a mutually rotating mode through end portions, one end of the first connecting rod is fixedly connected with the rotating plate, the rotating plate can be driven to rotate together, one end of the second connecting rod is connected with the telescopic rod in a rotating mode, the telescopic rod is driven to move up and down together, the structure is simple, and production cost is reduced.

In addition, fixed mounting has first photoelectric switch and second photoelectric switch on the lateral wall of whitening room for the response fixed mounting follows the telescopic link and carries out the position of the response piece that reciprocates on the telescopic link, and the controller is according to the signal of telecommunication that first photoelectric switch and second photoelectric switch sent, also is according to the position of response piece, just can acquire the position of two current rotor plates, and control driving piece promotes the telescopic link and removes the size that changes the chamber export of milling.

In addition, in the present embodiment, the grain and chaff flow out of the whitening chamber vertically downward without inclination, that is, the grain blanking in the present example is intermediate blanking, and the resistance is smaller compared with bypass blanking.

In addition, in the embodiment, the discharging adjusting mechanisms of each whitening chamber are independent from each other, compared with the case that the discharging of all the whitening chambers is controlled by only one motor, the current of the driving member (motor) in the discharging adjusting mechanism in the embodiment is smaller, and by comparison, the difference of the current of the driving member and the current of the motor can reach 1 ampere, so that the discharging adjusting mechanism in the embodiment consumes less energy.

In addition, the process that the grow of the chamber of milling export and diminish is realized by driving piece (motor) drive rotor plate among the ejection of compact adjustment mechanism, with prior art, through motor drive control milling chamber export grow, the rethread resets and grinds the chamber export and diminish and compare, and the lower control of the band to grain flow is more accurate in this embodiment.

< example two >

The second embodiment provides a milling device having a frame, a main roller, a tension roller, a sanding belt, a feeding mechanism and a discharging mechanism (not shown).

The second embodiment of the milling device has a plurality of whitening chambers and a grain discharge adjusting mechanism 90.

The whitening chamber of the second embodiment has the same milling chamber as the whitening chamber 60 of the first embodiment and a milling chamber outlet arranged at the bottom of the milling chamber.

The grain outlet adjusting mechanism 90 is arranged at the outlet of the milling cavity and used for adjusting the size of the outlet of the milling cavity so as to control the flow rate of grains in the milling chamber.

Fig. 7 is a schematic structural view of the second embodiment of the present invention when the grain outlet adjusting mechanism completely opens the outlet of the grinding chamber.

As shown in fig. 7, the grain discharging adjusting mechanism 90 has an outlet 81, a rotating plate 82, a driving member 83, a telescopic rod 84, a linkage assembly 85, an induction sheet 86, a first photoelectric switch 87, a second photoelectric switch 88 and a control module.

An outlet port 81 is provided at the outlet of the milling chamber in communication with the milling chamber. Outlet part 81 of the second embodiment has an internal channel with a gradually decreasing diameter from top to bottom, specifically, the internal channel of outlet part 81 is inclined downward on the side close to the sanding belt facing away from the sanding belt, and the bottom of the side is abutting part 811.

Rotating plate 82 is rotatably mounted at the grinding chamber outlet, in particular rotating plate 82 is rotatably mounted in the internal passage of outlet portion 81, having a rotating end 821 rotatably mounted in outlet portion 81 and a free end 822 opposite to rotating end 821. The rotating end 821 of the rotating plate 82 is rotatably mounted on a side of the outlet portion 81 remote from the abutting portion.

During rotation of the rotating plate 82, the free end 822 of the rotating plate 82 moves towards or away from the abutment 811, thereby changing the size of the grinding chamber outlet. When the free end 822 abuts against the abutment 811, the rotating plate 82 completely closes the grinding chamber outlet, and when the free end 822 is directed vertically downwards, the rotating plate 82 is in the fully open position, with the grinding chamber fully open.

When the free end 822 abuts on the abutting portion 811, the rotating plate 82 is inclined downward in a direction approaching the abrasive belt.

The driving member 83 is a stepping motor, and is fixedly installed on the outer wall of the whitening chamber and located on the side of the whitening chamber away from the abrasive belt. The driving member 83 is electrically connected to the control module, and the control module controls the driving member 83 to operate.

The telescopic rod 84 is connected at the lower end of the stepping motor, is located outside the whitening chamber, and can stretch out and draw back in the vertical direction under the driving of the stepping motor, namely, the control module can control the telescopic rod to move up and down.

The linkage assembly 85 connects the telescopic rod 84 and the rotating plate 82, and converts the up-and-down movement of the telescopic rod into forward and reverse rotation of the rotating plate.

The linkage assembly 85 includes a rotating rod 851 and a guide member 852.

One end of the rotating rod 851 is fixedly coupled to the rotating end 821 of the rotating plate 82, and the other end is rotatably coupled to one end of the guide member 852.

One end of the guide 852 is fixedly mounted on the lower portion of the telescopic bar 84, and the other end extends in a direction close to the rotating plate, i.e. in a direction close to the milling chamber, and has a strip-shaped groove extending in the extending direction of the guide 852. The other end of the rotating rod 851 is rotatably coupled to one end of the guide member 852 through a shaft, and the guide member can move along the bar-shaped groove.

The sensing piece 86 is fixedly installed on the telescopic rod 84.

The first photoelectric switch 87 is fixedly mounted on the outer side wall of the whitening chamber and is provided at a position corresponding to the sensing piece 86 when the free end 822 of the rotating plate 82 abuts against the abutting portion 811. As shown in fig. 7, in the second embodiment, when the free end 822 abuts against the abutting portion 811, the sensing piece 86 is located at the lowest point.

The second photoelectric switch 88 is fixedly installed on the outer side wall of the whitening chamber and is arranged at the position corresponding to the sensing piece 86 when the free end 822 of the rotating plate 82 is vertically downward, i.e. the outlet of the grinding cavity is fully opened. In the second embodiment, when the free end 822 is vertically downward, the sensing piece 86 is located at the highest point.

That is, the first photoelectric switch 87 is located below the second photoelectric switch 88. The distance between the first and second photoelectric switches 87 and 88 corresponds to the stroke of the rotating plate 82 from the fully opened position to the fully closed position.

The control unit is electrically connected to the driver 83, the first opto-electronic switch 87 and the second opto-electronic switch 88. The first and second photoelectric switches 87 and 88 measure the distance to the sensing piece 86 and send an electric signal to the control unit. The control unit judges the opening degree of the outlet of the grinding cavity according to the position of the sensed sensing piece 86, controls the driving piece 83 to push the telescopic rod 84 to stretch, and further controls the rotating plate 82 to rotate so as to change the opening size of the outlet of the grinding cavity.

Specifically, the control unit obtains the total number of harmonics in the stroke of the rotating plate 82 from full closing to full opening, calculates the number of harmonics in the 1% stroke, and then senses the position of the plate 77 by controlling the number of harmonics, and further controls the opening and closing position of the rotating plate 82, thereby changing the size of the outlet of the grinding chamber.

As shown in fig. 7, the free end 822 of the rotating plate 82 abuts against the abutment 811, completely closing the grinding chamber outlet. The grinding chamber is now in a fully closed state with the sensing plate 86 opposite the first opto-electronic switch 87.

Fig. 8 is a schematic structural view of the grain outlet adjusting mechanism of the second embodiment of the present invention when the outlet of the grinding chamber is partially opened.

When the telescopic rod 84 is driven by the driving member 83, the telescopic rod 84 moves upwards to drive the guide member fixedly connected to the telescopic rod 84 to move upwards, so that the rotating rod 851 rotates anticlockwise as shown in fig. 7, and the rotating plate 82 fixedly connected with the rotating rod 851 rotates anticlockwise from the position abutted with the abutting portion 811, so as to form a state as shown in fig. 8, and the rice milling cavity outlet is reduced, namely the outlet of the milling cavity is partially opened. At this time, the sensing piece 86 is located between the first and second photoelectric switches 78 and 79.

Fig. 9 is a schematic structural view of the second embodiment of the present invention when the grain outlet adjusting mechanism completely closes the outlet of the grinding chamber.

When the rotating plate 82 is rotated to the position shown in figure 8, the telescopic rod 84 continues to move upwards, the guide also continues to move upwards, the rotating rod 851 and the rotating plate 82 continue to rotate anticlockwise until the rotating plate 82 rotates to the vertical downward position, thus fully opening the grinding chamber outlet, i.e. the condition shown in figure 9. At this time, the sensing piece 86 is located at a position opposite to the second photoelectric switch.

Effects and effects of example two

The grain adjustment mechanism and contain this grain adjustment mechanism's equipment of milling that goes out that this embodiment two provided, with the embodiment one through two rotor plates control mill the chamber export size difference be, this embodiment two only just can control the size of the chamber export of milling through a rotor plate, the structure is simpler, compares with two rotor plates of simultaneous movement, the reliability is also better.

In addition, when a single rotating plate is used for controlling, the flow rate of the grains is slower than that of the grains controlled by two rotating plates, and the flow rates required by different kinds of grains in the grinding process are different, so that different numbers of rotating plates can be suitable for different kinds of grains.

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 the first embodiment, the two rotating plates are arranged left and right, that is, the part of the sanding belt facing the sanding belt when the whitening chamber faces the sanding belt is taken as the front surface and is distributed on the left and right sides of the whitening chamber.

Claims (10)

1. A grain outlet adjusting mechanism installed in a milling apparatus having a vertically arranged main drum, a tension drum, an abrasive belt arranged outside the main drum and the tension drum, and a plurality of milling chambers evenly distributed around the main drum, the milling chambers having milling chambers for milling in cooperation with the abrasive belt, the bottom of the milling chambers being a milling chamber outlet, comprising:

at least one rotating plate mounted at the outlet of said milling chamber;

the telescopic rod is installed on the outer side of the whitening chamber and stretches along the vertical direction; and

the linkage subassembly, one end with the rotor plate is connected, the other end with the telescopic link is connected, makes the telescopic link is when stretching out and drawing back along vertical direction the rotor plate rotates, thereby changes the size of grinding chamber export.

2. The grain discharge adjustment mechanism of claim 1, further comprising:

an outlet portion disposed at an outlet of the milling chamber and communicating with the milling chamber,

the rotating plate has a rotating end rotatably mounted in the outlet portion and a free end opposite the rotating end.

3. The grain discharge adjusting mechanism of claim 2, characterized in that:

wherein the two rotating plates are oppositely arranged and respectively comprise a first rotating plate and a second rotating plate,

the first rotating plate is provided with a corresponding first rotating end and a first free end, the second rotating plate is provided with a corresponding second rotating end and a second free end,

the first rotating end and the second rotating end are arranged oppositely,

the first rotating plate and the second rotating plate rotate simultaneously through the linkage assembly so that the first free end and the second free end are abutted against or separated from each other.

4. The grain discharge adjusting mechanism of claim 3, characterized in that:

wherein the linkage assembly comprises a first connecting rod and a second connecting rod which are arranged in pairs,

one end of each of the two first connecting rods is fixedly connected with the first rotating end and the second rotating end respectively, and an included angle between each first connecting rod and the corresponding rotating plate is an acute angle,

the other ends of the two first connecting rods respectively extend towards the direction close to each other and are rotatably connected with one end of the corresponding second connecting rod,

the two second connecting rods extend towards the direction close to the telescopic rod, and the other ends of the two second connecting rods are close to each other and are rotatably connected to the lower end of the telescopic rod.

5. The grain discharge adjustment mechanism of claim 3, further comprising:

the induction sheet is fixedly arranged on the telescopic rod;

a first photoelectric switch provided at a position corresponding to the sensing piece when the first free end and the second free end are abutted against each other,

and the second photoelectric switch is arranged at the position corresponding to the sensing piece when the first free end and the second free end are both vertically downward.

6. The grain discharge adjusting mechanism of claim 2, characterized in that:

wherein the outlet section has an abutment portion cooperating with the rotating plate to close the outlet of the milling chamber,

the rotating end is rotatably arranged at one end, far away from the abutting part, of the outlet part, so that in the rotating process of the rotating plate, the free end moves towards the direction close to or far away from the abutting part, and the size of the outlet of the grinding cavity is changed.

7. The grain discharge adjusting mechanism of claim 6, characterized in that:

wherein the linkage assembly comprises a rotating rod and a guide part,

one end of the rotating rod is fixedly connected to the rotating end of the rotating plate,

one end of the guide piece is fixedly arranged at the lower part of the telescopic rod, the other end of the guide piece extends towards the direction close to the rotating plate and is provided with a strip-shaped groove extending along the extending direction of the guide piece,

the other end of dwang rotationally connects through the pivot in the bar groove, makes the dwang is in the guide piece quilt the telescopic link drives and winds when reciprocating the dwang with the link of rotor plate rotates, and then makes the rotor plate rotates.

8. The grain discharge adjustment mechanism of claim 6, further comprising:

the induction sheet is fixedly arranged on the telescopic rod;

a first photoelectric switch arranged at the position corresponding to the induction sheet when the free end is abutted against the abutting part,

and the second photoelectric switch is arranged at the position corresponding to the sensing piece when the free end faces downwards vertically.

9. The grain discharge adjustment mechanism of claim 1, further comprising:

the driving piece is used for driving the telescopic rod to stretch.

10. A milling apparatus, comprising:

a frame;

the main roller is vertically arranged on the rack;

the tensioning roller is vertically arranged on the rack and is opposite to the main roller;

the abrasive belt is tightly sleeved on the outer sides of the main roller and the tensioning roller;

the grinding chambers are uniformly distributed around the main roller and are provided with grinding cavities matched with the abrasive belts for grinding grains to be ground, and the bottoms of the grinding cavities are provided with grinding cavity outlets; and

a grain outlet adjusting mechanism for adjusting the size of the outlet of the grinding cavity,

wherein, the grain discharging adjusting mechanism is the grain discharging adjusting mechanism of any one of claims 1 to 9.

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