CN113695011A

CN113695011A - Novel adjustable millet flour grinding device

Info

Publication number: CN113695011A
Application number: CN202110884874.8A
Authority: CN
Inventors: 葛含静; 王立志; 王静; 宋博; 杨静; 高垣平
Original assignee: Shaanxi Xueqian Normal University
Current assignee: Shaanxi Xueqian Normal University
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2021-11-26

Abstract

The invention discloses a novel adjustable millet flour grinding device which comprises a shell, a feeding hole and a discharging hole, wherein the feeding hole is fixed on the top surface of the shell, the discharging hole is fixed on the bottom surface of the shell, a motor is arranged in the feeding hole, a grinding cylinder is arranged in the shell, the bottom end of the feeding hole extends to the inner top of the grinding cylinder, and the bottom end of the grinding cylinder extends to the inner top of the discharging hole; the output shaft of motor is fixed with broken piece through the connecting rod, the bottom of broken piece is fixed with grinding roll, broken piece, grinding roll all are located the inside of grinding vessel. The invention can adjust the diameter of the ground millet flour particles; the stability of matching of the worm and the worm wheel in the adjusting process is ensured; the millet is beneficial to the crushing and the subsequent grinding process; avoid having the millet flour to remain on the inner wall of grinding vessel, the air current in the second air flue blows along decurrent direction, does benefit to the blowing of millet flour and drops downwards.

Description

Novel adjustable millet flour grinding device

Technical Field

The invention relates to the technical field of millet flour grinding, in particular to a novel adjustable millet flour grinding device.

Background

Millet is also called millet, northern called millet, and millet is husked to be millet with small grain size of about 1 mm. Millet is one of the oldest cultivated crops in the world, originates from the river basin of the Chinese yellow river, and is a main food crop ancient in the Chinese. The millet has high nutritive value and comprehensive and balanced nutrition, and mainly contains carbohydrate, protein, amino acid, fat, fatty acid, vitamins, minerals, etc.

Millet flour is prepared by finely processing millet, and after many women in the north of China have a birth, the millet flour is used in the traditional method of recuperating the body by adding brown sugar, so that the millet flour is processed flour with higher nutritional value. In the process of processing the millet flour, a grinding device is needed to grind the millet so as to ensure the processing effect of the millet flour. However, the conventional millet flour milling apparatus has the following disadvantages: 1. the millet flour has poor grinding effect and influences the edible taste; 2. the diameter of the millet flour can not be flexibly adjusted, and the millet flour can not flexibly adapt to the taste requirements of different people; 3. the phenomena of residual millet flour and unclean blanking exist, and grains are wasted.

Disclosure of Invention

The invention aims to provide a novel adjustable millet flour grinding device, which aims to solve the problems that the millet flour grinding effect is poor and the edible taste is influenced; the diameter of the millet flour can not be flexibly adjusted, and the millet flour can not flexibly adapt to the taste requirements of different people; the problems of residual millet powder, unclean blanking and grain waste exist.

In order to realize the purpose of the invention, the invention adopts the following technical scheme: a novel adjustable millet flour grinding device comprises a shell, a feed inlet and a discharge outlet, wherein the feed inlet is fixed on the top surface of the shell, the discharge outlet is fixed on the bottom surface of the shell, a motor is arranged in the feed inlet, a grinding cylinder is arranged in the shell, the bottom end of the feed inlet extends to the inner top of the grinding cylinder, and the bottom end of the grinding cylinder extends to the inner top of the discharge outlet;

a crushing piece is fixed on an output shaft of the motor through a connecting rod, a grinding roller is fixed at the bottom end of the crushing piece, and the crushing piece and the grinding roller are both positioned in the grinding cylinder;

a worm is arranged in the shell, a worm wheel is arranged on the periphery of the top end of the grinding cylinder, the worm and the worm wheel are matched with each other, the height of the worm wheel is h, the diameter of the worm is d, and h =2 x d;

the bottom end of the inner wall of the shell is provided with an annular plate, the periphery of the bottom end of the grinding cylinder is fixedly provided with a supporting block, the supporting block is in threaded connection with the inner wall of the annular plate, the top end and the bottom end of the supporting block are respectively provided with a stop ring piece, and the two stop ring pieces are respectively positioned at the upper side and the lower side of the annular plate;

when the worm rotates, the worm drives the worm wheel to rotate, the worm wheel drives the grinding cylinder to rotate, the grinding cylinder drives the supporting block to rotate in the thread groove in the inner wall of the annular plate, and therefore the supporting block drives the grinding cylinder to move up and down.

Preferably, the crushing piece is the back taper structure, it holds the chamber to form between the outer wall of crushing piece and the inner wall of grinding vessel, be equipped with first broken tooth, the broken tooth of second and the broken tooth of third on the outer wall of crushing piece, first broken tooth, the broken tooth of second and the broken tooth of third distribute from last to down, the size of first broken tooth, the broken tooth of second and the broken tooth of third reduces in proper order.

Preferably, install the air pump in the bottom mounting groove of grinding roller, first air duct has been seted up at the center of grinding roller, a plurality of second air ducts have been seted up along circumference in the inside of grinding roller, the slope of second air duct distributes downwards, the inner and the first air duct intercommunication of second air duct, the bottom of grinding roller is equipped with the filter screen, when starting during the air pump, the air current of the gas outlet of air pump blows downwards to the inner wall bottom of grinding vessel through first air duct, the slope of second air duct.

Preferably, four scraping plates are arranged at the top end of the inner wall of the grinding cylinder, the four scraping plates are uniformly distributed along the circumferential direction of the grinding cylinder, a blanking gap is reserved between every two adjacent scraping plates, the scraping plates are obliquely and upwards distributed and form an included angle of 60 degrees with the inner wall of the grinding cylinder, and the crushing piece is located below the scraping plates.

Preferably, the connecting rods are vertically distributed, connecting blocks are arranged at the bottom ends of the connecting rods, the connecting blocks are of inverted cone structures, the bottom ends of the connecting blocks are fixedly connected with the top surfaces of the crushing pieces, and the central line of the connecting rods, the central line of the connecting blocks, the central line of the crushing pieces, the central line of the grinding roller and the central line of the grinding cylinder are overlapped.

Preferably, be equipped with the controller on the outer wall of casing, electric connection between controller and motor, the air pump, be equipped with four supporting legs on the bottom surface of casing, be equipped with the mounting bracket in the feed inlet, the motor is installed on the inner of mounting bracket.

Compared with the prior art, the novel adjustable millet flour grinding device adopting the technical scheme has the following beneficial effects:

during use, an output shaft of a motor drives a crushing piece to rotate through a connecting rod and a connecting block, the crushing piece drives a grinding roller to rotate, wherein the crushing piece rotates circumferentially relative to a grinding cylinder and is used for crushing millet in advance, the following grinding process is facilitated, crushed millet particles enter a gap between the grinding roller and the grinding cylinder, and the grinding roller rotates circumferentially relative to the grinding cylinder and is used for further grinding the crushed millet, so that the grinding function of millet flour is realized;

secondly, at the in-process that uses, when rotatory hand wheel and drive the worm rotatory with the hand, the worm drives the worm wheel rotatory, and the worm wheel drives the grinding vessel rotation, and the grinding vessel drives the supporting shoe at the inner wall thread groove internal rotation of annular plate to the supporting shoe drives the grinding vessel and reciprocates, and the grinding vessel reciprocates and is used for adjusting the clearance between the inner wall of grinding vessel and the outer wall of grinding roller, thereby adjusts millet powder abrasive grain's diameter size. In addition, the grinding cylinder can drive the worm wheel to move up and down, and the design of h = d is adopted, so that the worm wheel can be ensured to be matched with the worm after moving up and down, and the matching stability of the worm and the worm wheel in the adjusting process is ensured;

when the millet crusher is used, the crushing piece drives the first crushing tooth, the second crushing tooth and the third crushing tooth to rotate simultaneously, and the sizes of the first crushing tooth, the second crushing tooth and the third crushing tooth are sequentially reduced, so that millet is sequentially crushed to different degrees, the diameters of crushed grains are gradually reduced, a gradual transition process is formed, and the millet crushing and subsequent grinding processes are facilitated;

four, when starting the air pump, the air current of the gas outlet of air pump blows to the inner wall bottom of grinding vessel through first air flue, second air flue, thereby blow remaining millet powder on the inner wall of grinding vessel, avoid having the millet powder to remain on the inner wall of grinding vessel, in addition, the design that second air flue slope distributes downwards, the millet powder of the inner wall of avoiding the grinding vessel enters into the inside of second air flue, the air current in the second air flue blows along decurrent direction, do benefit to blowing of millet powder and drop downwards. When the grinding roller is rotatory, the grinding roller drives air pump, first air flue and second air flue circumferential direction to the air current that blows out from the second air flue presents the state that circumferential direction encircles, makes the millet powder homoenergetic on the circumference inner wall of grinding vessel blown off, does benefit to the complete blanking of millet powder.

Drawings

Fig. 1 is a perspective view of an embodiment of the novel adjustable millet flour milling device of the present invention.

Fig. 2 is a front sectional view of the embodiment.

FIG. 3 is a front sectional view of the crushing member and the grinding roll in the embodiment.

FIG. 4 is a top view of the blade distribution of the example.

FIG. 5 is a front sectional view of the position of the squeegee in the embodiment.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Millet flour grinder with adjustable it is novel as shown in fig. 1, 2, including casing 1, feed inlet 2 and discharge gate 4, feed inlet 2 is fixed on the top surface of casing 1, discharge gate 4 is fixed on the bottom surface of casing 1, be equipped with motor 5 in the feed inlet 2, it is specific, be equipped with mounting bracket 21 in the feed inlet 2, motor 5 is installed on the inner of mounting bracket 21, and the central line of motor 5 and the central line of feed inlet 2 coincide mutually, preferably, the quantity of mounting bracket 21 is four, four mounting brackets 21 can improve the stability that motor 5 was installed. Casing 1's inside is equipped with grinding vessel 6, the vertical distribution of grinding vessel 6, and the bottom of feed inlet 2 extends to the interior top of grinding vessel 6, and the bottom of grinding vessel 6 extends to the interior top of discharge gate 4, is equipped with controller 11 on casing 1's the outer wall, and electric connection between controller 11 and motor 5, the air pump 722 is equipped with four supporting legs on casing 1's the bottom surface, and the supporting leg is used for supporting whole device.

When the millet grinder is used, a material receiving box is placed under a discharge port 4, millet to be ground is poured into a feed port 2, a motor 5 is started, the millet in the feed port 2 falls into the top of a grinding cylinder 6 downwards under the action of gravity, the millet in the grinding cylinder 6 falls into the discharge port 4 downwards under the action of gravity after being crushed and ground, finally millet powder in the discharge port 4 falls into the material receiving box downwards, an air pump 722 is started during the process, air flow of the air pump 722 blows the residual millet powder on the inner wall of the grinding cylinder 6 downwards, the grinding and discharging functions of the millet powder are achieved, the motor 5 and the air pump 722 are controlled through a controller 11, and the automation degree is high.

As shown in fig. 1 and 2, the output shaft of the motor 5 is fixed with a crushing member 71 through a connecting rod 51, a grinding roller 72 is fixed to the bottom end of the crushing member 71, and both the crushing member 71 and the grinding roller 72 are located inside the grinding cylinder 6. As shown in fig. 3, the connecting rod 51 is vertically distributed, the top end of the connecting rod 51 is fixedly connected with the output shaft of the motor 5 through a coupler, the bottom end of the connecting rod 51 is provided with a connecting block 52, the connecting block 52 is of an inverted cone-shaped structure, the bottom end of the connecting block 52 is fixedly connected with the top surface of the crushing member 71, the connecting block 52 is used for increasing the connecting area between the connecting block and the crushing member 71 and improving the strength of the fixing of the crushing member 71, and the central line of the connecting rod 51, the central line of the connecting block 52, the central line of the crushing member 71, the central line of the grinding roller 72 and the central line of the grinding cylinder 6 are mutually overlapped.

In the in-process of using, the output shaft of motor 5 passes through connecting rod 51, connecting block 52 drives broken piece 71 is rotatory, broken piece 71 drives grinding roll 72 rotatory, wherein, broken piece 71 does the circumferential direction for grinding vessel 6 and is used for broken millet in advance, do benefit to following grinding process, millet granule after the breakage enters into grinding roll 72, in the clearance between grinding vessel 6, grinding roll 72 does the circumferential direction for grinding vessel 6, be used for further grinding the millet after the breakage, realize millet powder's grinding function.

As shown in fig. 2, a worm 31 is arranged inside the housing 1, a hand wheel is arranged at one end of the worm 31 extending to the outside of the housing 1, a worm wheel 32 is arranged on the top end periphery of the grinding cylinder 6, the worm 31 and the worm wheel 32 are matched with each other, the height of the worm wheel 32 is h, the diameter of the worm 31 is d, and h =2 × d, wherein the central line of the worm 31 is horizontally distributed, and the central line of the worm wheel 32 is vertically distributed. As shown in fig. 2, an annular plate 81 is provided at the bottom end of the inner wall of the casing 1, a supporting block 82 is fixedly provided at the bottom end periphery of the grinding cylinder 6, and the supporting block 82 is screwed on the inner wall of the annular plate 81. In addition, the top end and the bottom end of the supporting block 82 are provided with two stopping ring pieces 83, and the two stopping ring pieces 83 are respectively located at the upper side and the lower side of the annular plate 81.

In the use process, when the hand wheel is rotated by hands and the worm 31 is driven to rotate, the worm 31 drives the worm wheel 32 to rotate, the worm wheel 32 drives the grinding cylinder 6 to rotate, the grinding cylinder 6 drives the supporting block 82 to rotate in the thread groove of the inner wall of the annular plate 81, so that the supporting block 82 drives the grinding cylinder 6 to move up and down, the grinding cylinder 6 moves up and down to adjust the gap between the inner wall of the grinding cylinder 6 and the outer wall of the grinding roller 72, and the diameter of ground particles of the millet flour is adjusted. In addition, the grinding cylinder 6 can drive the worm wheel 32 to move up and down, and the design of h =2 x d can ensure that the grinding cylinder can be matched with the worm 31 after the worm wheel 32 moves up and down, so that the matching stability of the worm 31 and the worm wheel 32 in the adjusting process is ensured. The supporting block 82 can drive the two stop ring pieces 83 to move upwards or downwards, the stop ring pieces 83 are used for blocking the annular plate 81, the supporting block 82 is prevented from being completely separated from the annular plate 81, and the safe adjustment operation is ensured.

Specifically, when the worm 31 rotates forward, the worm 31 drives the supporting block 82 to rotate forward through the worm wheel 32 and the grinding cylinder 6, and under the effect of the threaded connection between the supporting block 82 and the inner wall thread groove of the annular plate 81, the supporting block 82 drives the grinding cylinder 6 to move upward, so that the gap between the inner wall of the grinding cylinder 6 and the outer wall of the grinding roller 72 is reduced, and the diameter of the ground rice flour particles is reduced, whereas, when the worm 31 rotates backward, the worm 31 drives the supporting block 82 to rotate backward through the worm wheel 32 and the grinding cylinder 6, and under the effect of the threaded connection between the supporting block 82 and the inner wall thread groove of the annular plate 81, the supporting block 82 drives the grinding cylinder 6 to move downward, so that the gap between the inner wall of the grinding cylinder 6 and the outer wall of the grinding roller 72 is increased, and the diameter of the ground rice flour particles is increased, that is to adjust the diameter of the ground rice flour particles through the forward and backward rotation of the worm 31, the adaptability is high.

As shown in fig. 2 and 3, the crushing member 71 is of an inverted cone-shaped structure, an accommodating cavity 73 is formed between the outer wall of the crushing member 71 and the inner wall of the grinding drum 6, the bottom end of the accommodating cavity 73 is of a triangular structure, the accommodating cavity 73 is used for accommodating millets, a first crushing tooth 711, a second crushing tooth 712 and a third crushing tooth 713 are arranged on the outer wall of the crushing member 71, the first crushing tooth 711, the second crushing tooth 712 and the third crushing tooth 713 are distributed from top to bottom, and the sizes of the first crushing tooth 711, the second crushing tooth 712 and the third crushing tooth 713 are sequentially reduced. During the use, broken piece 71 drives first broken tooth 711, second broken tooth 712 and the design that third broken tooth 713 rotated simultaneously, and the size of first broken tooth 711, second broken tooth 712 and third broken tooth 713 reduces in proper order for the millet is by the broken processing of different degrees in proper order, and the particle diameter after the breakage is more and more littleer, forms the process of transition gradually, does benefit to the broken of millet and subsequent grinding process.

As shown in fig. 2 and 3, an air pump 722 is installed in the mounting groove at the bottom end of the grinding roller 72, the air pumps 722 are vertically distributed, a first air passage 721 is formed in the center of the grinding roller 72, the first air passage 721 is vertically distributed, a plurality of second air passages 723 are formed in the grinding roller 72 along the circumferential direction, the second air passages 723 are obliquely and downwardly distributed, the inner ends of the second air passages 723 are communicated with the first air passages 721, the plurality of second air passages 723 are longitudinally arranged, a filter screen 724 is arranged at the bottom end of the grinding roller 72, and the filter screen 724 is used for filtering rice flour in the discharge port 4 to prevent the rice flour from being sucked by the air pump 722. When the air pump 722 is started, the air flow at the air outlet of the air pump 722 is blown to the bottom end of the inner wall of the grinding cylinder 6 through the first air passage 721 and the second air passage 723, so that residual millet flour on the inner wall of the grinding cylinder 6 is blown off, the situation that the millet flour remains on the inner wall of the grinding cylinder 6 is avoided, in addition, due to the design that the second air passage 723 is obliquely and downwardly distributed, the millet flour on the inner wall of the grinding cylinder 6 is prevented from entering the inside of the second air passage 723, the air flow in the second air passage 723 is blown along the downward direction, and the blowing-off and the downward falling of the millet flour are facilitated. When the grinding roller 72 rotates, the grinding roller 72 drives the air pump 722, the first air passage 721 and the second air passage 723 to rotate circumferentially, so that the air flow blown out from the second air passage 723 is in a circumferentially rotating and surrounding state, the millet flour on the circumferential inner wall of the grinding cylinder 6 can be blown off, and complete blanking of the millet flour is facilitated.

As shown in fig. 2, 4 and 5, four scrapers 61 are disposed at the top end of the inner wall of the grinding cylinder 6, the four scrapers 61 are uniformly distributed along the circumference of the grinding cylinder 6, a blanking gap is left between two adjacent scrapers 61, the scrapers 61 are obliquely and upwardly distributed and form an included angle of 60 degrees with the inner wall of the grinding cylinder 6, and the crushing member 71 is located below the scrapers 61. When millet falls into grinding vessel 6's interior top from feed inlet 2, the millet drops through the blanking clearance between two adjacent scraper blades 61 and enters into and hold the chamber 73, and broken piece 71 is rotatory can drive the rotation that holds the millet in the chamber 73 to the millet rotates for scraper blade 61, plays the effect of stirring, and in addition, the bottom of scraper blade 61 and the top of broken piece 71 are close to, play and enter into the millet compression and hold the effect in the chamber 73.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The novel adjustable millet flour grinding device comprises a shell (1), a feeding hole (2) and a discharging hole (4), wherein the feeding hole (2) is fixed on the top surface of the shell (1), and the discharging hole (4) is fixed on the bottom surface of the shell (1), and is characterized in that a motor (5) is arranged in the feeding hole (2), a grinding cylinder (6) is arranged in the shell (1), the bottom end of the feeding hole (2) extends to the inner top of the grinding cylinder (6), and the bottom end of the grinding cylinder (6) extends to the inner top of the discharging hole (4);

an output shaft of the motor (5) is fixedly provided with a crushing piece (71) through a connecting rod (51), the bottom end of the crushing piece (71) is fixedly provided with a grinding roller (72), and the crushing piece (71) and the grinding roller (72) are both positioned in the grinding cylinder (6);

a worm (31) is arranged in the shell (1), a worm wheel (32) is arranged on the periphery of the top end of the grinding cylinder (6), the worm (31) and the worm wheel (32) are matched with each other, the height of the worm wheel (32) is h, the diameter of the worm (31) is d, and h =2 x d;

an annular plate (81) is arranged at the bottom end of the inner wall of the shell (1), a supporting block (82) is fixedly arranged on the periphery of the bottom end of the grinding cylinder (6), the supporting block (82) is in threaded connection with the inner wall of the annular plate (81), stop ring pieces (83) are arranged at the top end and the bottom end of the supporting block (82), and the two stop ring pieces (83) are respectively positioned at the upper side and the lower side of the annular plate (81);

when the worm (31) rotates, the worm (31) drives the worm wheel (32) to rotate, the worm wheel (32) drives the grinding cylinder (6) to rotate, the grinding cylinder (6) drives the supporting block (82) to rotate in a thread groove on the inner wall of the annular plate (81), and therefore the supporting block (82) drives the grinding cylinder (6) to move up and down.

2. The novel adjustable millet flour milling device of claim 1, characterized in that: the crushing member (71) is an inverted cone-shaped structure, an accommodating cavity (73) is formed between the outer wall of the crushing member (71) and the inner wall of the grinding cylinder (6), a first crushing tooth (711), a second crushing tooth (712) and a third crushing tooth (713) are arranged on the outer wall of the crushing member (71), the first crushing tooth (711), the second crushing tooth (712) and the third crushing tooth (713) are distributed from top to bottom, and the sizes of the first crushing tooth (711), the second crushing tooth (712) and the third crushing tooth (713) are sequentially reduced.

3. The novel adjustable millet flour milling device of claim 2, characterized in that: an air pump (722) is installed in a mounting groove at the bottom end of the grinding roller (72), a first air passage (721) is formed in the center of the grinding roller (72), a plurality of second air passages (723) are formed in the grinding roller (72) along the circumferential direction, the second air passages (723) are distributed obliquely downwards, the inner ends of the second air passages (723) are communicated with the first air passages (721), and a filter screen (724) is arranged at the bottom end of the grinding roller (72);

when the air pump (722) is started, the air flow at the air outlet of the air pump (722) is obliquely and downwards blown to the bottom end of the inner wall of the grinding cylinder (6) through the first air passage (721) and the second air passage (723).

4. The novel adjustable millet flour milling device of claim 3, characterized in that: the inner wall top of grinding vessel (6) is equipped with four scraper blades (61), four scraper blade (61) are along the circumference evenly distributed of grinding vessel (6), adjacent two leave the blanking clearance between scraper blade (61), scraper blade (61) slope upwards distribute and with be 60 degrees contained angles between the inner wall of grinding vessel (6), broken piece (71) are located the below of scraper blade (61).

5. The novel adjustable millet flour milling device of claim 1 or 4, characterized in that: the grinding device is characterized in that the connecting rods (51) are vertically distributed, the bottom ends of the connecting rods (51) are provided with connecting blocks (52), the connecting blocks (52) are of inverted cone structures, the bottom ends of the connecting blocks (52) are fixedly connected with the top surfaces of the crushing pieces (71), and the center line of the connecting rods (51), the center line of the connecting blocks (52), the center line of the crushing pieces (71), the center line of the grinding roller (72) and the center line of the grinding cylinder (6) are overlapped.

6. The novel adjustable millet flour milling device of claim 1, characterized in that: be equipped with controller (11) on the outer wall of casing (1), electric connection between controller (11) and motor (5), air pump (722), be equipped with four supporting legs on the bottom surface of casing (1), be equipped with in feed inlet (2) mounting bracket (21), motor (5) are installed on the inner of mounting bracket (21).