KR101778915B1 - Grain crusher - Google Patents

Abstract

The present invention provides a grain mill in which destruction of nutrients is prevented by preventing heat generation when milling grains, a pileup phenomenon caused by standby grains at the time of milling grains is eliminated, and control of a milling gap is easily performed. The grain mill according to a preferred embodiment of the present invention comprises: a mill body having a grain feed port at the top and a milled material outlet at the bottom; a driving milling roller disposed below the grain feed port and rotatably supported on the mill body; and a driven milling roller supported by the mill body in parallel to the driving milling roller and rotatingly driven together with the driving milling roller, wherein a helical milling teeth profile having a tooth groove angle in the range of 40 to 70 and a tilt angle of 12 are respectively formed on the outer circumferential surfaces of the driving milling roller and the driven milling roller, in order to suppress heat generation at the time of grain milling.

Description

{Grain crusher}

The present invention relates to a grain crusher used for crushing various grains, in particular, it prevents generation of heat during grain crushing, prevents destruction of nutrients, solves the rubbing phenomenon in which grains are waiting at the time of crushing, This is about a grain shredder.

Various grains such as brown rice, wheat, barley, soybeans etc. have different characteristics (grain size) as well as physical properties. Therefore, in general, when crushing is performed through a pair of crushing rollers, it is necessary to adjust the crushing clearance between the pair of rollers. In addition, when the amount of grain entering between the pair of crushing rollers is large, a rolling phenomenon occurs. This droplet phenomenon also causes a reduction in the productivity of pulverization. Therefore, if the amount of the grain fed between the pair of crushing rollers can be appropriately adjusted, the crushing can be prevented and efficient crushing can be performed. In addition, when a pair of rollers is used to crush the grain, frictional heat is generated and nutrients contained in the grain are destroyed.

As a background of the present invention, Korean Patent Registration No. 10-1012766, a " grain grinder " has been proposed. This means that a plurality of crushing rollers are arranged in a zigzag form from top to bottom so as to be in contact with each other, and there is no means for controlling the crushing force generated between adjacent crushing rollers, In addition, there is a problem that the amount of the grain fed into the crushing roller can not be adjusted in the feed hopper, resulting in crushing.

Another technology to be a background of the present invention is a Korean Grain Registration Register No. 20-0447237, " Grain Grinder ". This is because the grain introduced into the upper portion of the main body is crushed by a pair of crushing rollers motor-driven inside the main body, and a grain removing unit is installed inside the main body to scrape off the crushed grains adhering to the surface of the crushing roller . However, this background technique also can not control the amount of the cereal to be fed into the crushing roller in the hopper, which may result in crushing of the crusher, which may lower the productivity.

Korean Patent Registration No. 10-1012766 Korean Registered Utility Model Registration No. 20-0447237

It is an object of the present invention to provide a grain grinder in which destruction of nutrients can be prevented by preventing generation of heat during grain crushing, elimination of a rolling phenomenon of grain during grinding, and control of grinding gap.

A grain grinder according to a preferred embodiment of the present invention comprises

A pulverizer main body having a grain feed port at the top and a pulverized water outlet at the bottom;

A driving pulverizing roller disposed below the grain feeding port and rotatably supported by the pulverizer main body;

And a driven pulverizing roller supported on the pulverizer main body in parallel to the driving pulverizing roller and rotatably driven together with the driving pulverizing roller;

The outer peripheral surface of the driving pulverizing roller and the driven pulverizing roller are each formed with a helical crush tooth having a tooth groove angle in the range of 40 ° to 70 ° and a tilt angle of 12 ° to suppress the generation of heat upon crushing of the grain.

A grains supply rotor disposed below the grains feed port and configured to rotate in conjunction with the driven grinding roller to control an amount of supply of grain fed between the drive grinding roller and the driven grinding roller; A grain supply adjusting shutter rotatably supported on the grinder main body side so as to be parallel to the grain supply rotor to change a grain supply gap formed between the grain supply rotor and the grain supply rotor according to the rotation direction; A shutter rotating arm connected and fixed to one end of the grain supply adjusting shutter; A shutter adjusting screw shaft having one end hinged to the shutter rotating arm; And a shutter rotating operation shaft having one end screwed to the other end of the shutter adjusting screw shaft and screwed to a supporting block provided at one side of the crusher main body and having a rotor operating handle at the other end thereof.

A coupling shaft rotatably supported on the main body of the crusher located above the driving crushing roller to intermittently rotate the rotation of the grain feeding rotor; Left and right connecting arms fixed to both ends of the coupling shaft; A rotor driving lever having one end rotatably pivotally coupled to one side of the crusher main body and having a rotor operation handle at the other end; A spring tension adjusting shaft hinged to the rotor driving lever at one end and having a spring tension adjusting handle at the other end and pivotally connected to the right connecting arm; A rotor driven pulley rotatably supported by the grain supply adjusting shutter; A rotor coupler coupled to the grain supply regulating shutter side for interrupting the rotational force of the rotor driven pulley of the drive pulley; And a rotor coupler operating rod having one end hinged to the rotor coupler and the other end pivotally coupled to the left connecting arm.

In order to adjust the crushing clearance between the driving crushing roller and the driven crushing roller, the rotating shaft of the driven crushing roller is supported so as to be linearly movable in the crusher main body and is connected to both ends of the driven crushing roller rotating shaft, A pair of driven crushing roller moving arms pivotally connected to both sides; And a roller gap adjusting shaft which is pivotally connected to both ends of the coupling shaft so as to be pivotally connected to one end of the coupling shaft, the one end being connected to the pair of driven pulverizing roller moving arms and the other end being provided with a pressure adjusting handle .

In order to elastically support the adjusted roller clearance, the roller clearance adjusting shaft is inserted into the roller clearance adjusting shaft, one end of which is supported on the side of the driven crushing roller moving arm and the other end is supported on the end of the roller clearance adjusting shaft, Is installed.

In addition, in order to switch the rotor drive lever from the coupling engagement position to the coupling release position, a couple having a locking groove to which the rotor operation handle is engaged and hinged to the grinder body side near the rotor drive lever And a ring release lever is further provided.

Further, a release lever tension spring having one end connected to the coupling release lever and the other end connected to the right connection arm side is further provided so that the rotation operation of the rotor driving lever occurs when the coupling release lever is rotated in the coupling release operation .

In addition, the lower part of the main body of the pulverizer is further provided with a brush for eliminating the attachments in order to remove the pulverized material attached to the driving pulverizing roller and the driven pulverizing roller.

According to the grain crusher of the present invention, the crushing roller has a predetermined tooth groove angle and a helical tooth profile having a tilt angle which are shifted from each other, so that generation of heat during grain crushing is eliminated, and nutrient destruction can be prevented. Further, by controlling the shutter for regulating the supply of grain, it is possible to control the amount of the grain to be fed into the pair of grinding rollers, so that the grains can be pulverized without causing a rolling phenomenon. Further, the crushing gap between the drive crushing roller and the driven crushing roller can be appropriately adjusted, so that the crushing power can be increased while appropriately coping with the kind and size of the grain. In addition, the grain feeder can be stopped immediately if necessary to stop the grain supply.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention, Shall not be construed as limiting.
1 is a perspective view of a grain crusher according to the present invention;
2 is a perspective view of the other part of the grain grinder shown in Fig.
Fig. 3 is a view showing a pulverizing operation according to driving of a driven driven roller and a driven pulverizing roller provided in Fig.
4A and 4B are a perspective view and a plan view of a driven driven roller and a driven pulverizing roller according to the present invention.
5 is a use state diagram showing one side portion of Fig.
FIG. 6 is a state diagram showing the other part of FIG. 1; FIG.
7 is a partially enlarged view of Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

1 to 4, a grain grinder 10 according to the present invention includes a grinder main body 22 having a grain feed opening 22a at an upper portion thereof and a grinding water discharge port 22b at a lower portion thereof. The pulverizer main body 22 may be fixed to the support frame 12 by way of example. On the side of the grain feed port 22a, a hopper 20 to which grains are fed may be provided.

The crusher main body 22 is provided with a drive crushing roller 24 and a driven crushing roller 26 for crushing the grain fed from the grain feed port 22a side. The driving pulverizing roller 24 and the driven pulverizing roller 26 are disposed below the grain feeding port 22a and arranged in parallel. The driving pulverizing roller 24 receives rotational force of the driving motor 14 provided on the supporting frame 12 through the driving belt 15 and the driving pulley 16 as shown in FIG. The driven pulverizing roller 26 receives the rotational force of the timing belt 18 wound on the friction pulley 17 connected to the rotating shaft of the driving pulverizing roller 24 by the timing gear 19, And is driven to rotate in the opposite direction.

6, the timing belt 18 is also connected to the idle pulley 121 and the tension pulley 122. The tension pulley 122 includes a tension control lever 132 pivotally connected to one side of the pulverizer main body 22 And the other end of the tension adjusting lever 132 is pivotally connected to a tension adjusting shaft 131 screwed to a tension bracket 25 provided on one side of the pulverizer main body 22. The tension of the timing belt 18 is adjusted by moving the tension pulley 122 by the tension adjusting lever 132 in accordance with the rotation direction of the tension adjusting shaft 131.

4, the outer peripheral surfaces of the driving pulverization roller 24 and the driven pulverizing roller 26 preferably have a tooth groove angle? In the range of 40 to 70 degrees and a tooth groove angle? Helical grinding teeth 241 and 261 having a tilting angle beta are formed, respectively.

Since the helical pulverized gears 241 and 261 are inclined at an inclination angle? Of 12 degrees, the drive pulverizing roller 24 and the driven pulverizing roller 26 are not line-contact pulverized but pulverized in a multi-point contact manner Heat generation is suppressed. Further, due to the tooth groove angle? In the range of 40 ° to 70 °, the grain crushed material easily deviates from the tooth groove formed between the helical pulverized teeth 241 and 261 and there is no time for heat transfer. As a result, the nutrient destruction of the crushed grains can be prevented.

The grain supply rotor 32 and the grain supply regulating shutter 34 are provided as shown in Fig. 3 in order to control the supply amount of the grain fed between the driving pulverizing roller 24 and the driven pulverizing roller 26. [ The grain feeder rotor 32 is disposed below the grain feed port 22a and rotates in conjunction with the driven pulverizing roller 26. [ The grain feeder rotor 32 receives the rotational force of the rotor driven pulley 9 coupled to the driven pulverizing roller 26 side and the rotor driven pulley 60 connected via the belt 8 as shown in Fig. 5 . It is preferable that the grain feeding rotor 32 is formed with a tooth profile on its outer circumferential surface. The teeth formed on the outer peripheral surface of the grain feeder rotor 32 are preferably helical. The grain supply regulating shutter 34 is rotatably supported on the grinder main body 22 side so as to be parallel to the grain feed rotor 32. The grain supply regulating shutter 34 is formed in an arc shape in section. Therefore, the grain supply control shutter 34 changes the grain supply gap formed between the grain feeder rotor 32 and the grain feeder rotor 32 in accordance with the rotation direction of the grain so that the amount of grain supplied to the gap between the drive pulverizer roller 24 and the driven pulverizer roller 26 The supply amount can be controlled. Thus, by feeding a proper amount of grain between the drive crushing roller 24 and the driven crushing roller 26, it is possible to eliminate the rubbing phenomenon that the grain can not be crushed

A shutter rotating arm 36 connected to one end of the grain supply adjusting shutter 34 to adjust the rotating angle of the grain supply adjusting shutter 34 and a shutter 36 having one end hinged to the shutter rotating arm 36, One end of which is screwed to the other end of the shutter adjusting screw shaft 38 and the other end of which is screwed to a supporting block 42 provided on one side of the pulverizer main body 22, And a shutter rotation operation shaft 40 provided with the shutter 401.

The shutter 34 for controlling the supply of grain is rotated through the shutter rotating arm 36 connected to the shutter rotating operation shaft 40 in accordance with the rotating operation direction of the rotor manipulating handle 401, The gap between the supply adjusting shutters 34 is increased or decreased to control the feed amount of the grain fed between the driving pulverizing roller 24 and the driven pulverizing roller 26.

On the other hand, an apparatus for interrupting the rotational drive of the grain feed rotor 32 for the purpose of interrupting the supply of the grain is included. The coupling shafts 52 are disposed on the upper side of the driving pulverizing roller 24 and are rotatably supported by the pulverizer main body 22 and the left and right coupling arms 52 fixed to both ends of the coupling shaft 52. [ A rotor driving lever 56 having one end rotatably pivotally coupled to one side of the pulverizer main body 22 and having a rotor manipulating knob 561 at the other end thereof, A spring tension adjusting shaft 58 which is hingedly connected to the right side connecting arm 54 and has a spring tension adjusting handle 581 at the other end and pivotally coupled to the right connecting arm 54b, A rotor driven pulley 60 rotatably driven in conjunction with the crushing roller 26 and a rotor coupler 62 coupled to the grain supply adjusting shutter 34 side for interrupting the rotational force of the rotor driven pulley 60 of the drive pulley, , One end is hinged to the rotor coupler (62), and the other end is hinged to the left side A rotor coupler operating rod 64, which is coupled to the pivot arm (54a) can be configured by further comprising.

Therefore, when the rotor driving lever 56 is rotated to one coupling position by using the rotor operation lever 561 as shown in FIG. 6, the right connecting arm 54b connected to the spring tension adjusting shaft 58 The coupling shaft 52 rotates to rotate the left connecting arm 54a on the other side to one side so that the rotor coupler operating rod 64 rotates the rotor coupler 62 to rotate the rotor A coupling tooth 601 provided on the pulley 60 and a coupling tooth 321a transmitting rotational force to the grain supply rotor 32 side are combined. Thus, the rotational force of the rotor driven pulley 60 is transmitted to the grain feeder rotor 32, and the grain feeder rotor 32 rotates to feed the grain.

On the contrary, when the rotor driving lever 56 is rotated to the other position which is the coupling release position, the coupling shaft 52 rotates through the right connecting arm 54b connected to the spring tension adjusting shaft 58, The coupling arm 54a is rotated to the other side so that the rotor coupler operating rod 64 rotates the rotor coupler 62 to rotate the coupling tooth 601 provided in the rotor driven pulley 60, The coupling teeth 321a for transmitting the rotational force to the side of the coupling tooth 321 are released. As a result, the rotational force of the rotor driven pulley 60 is not transmitted to the grain feeding rotor 32, so that the rotation of the grain feeding rotor 32 is stopped to interrupt the feeding of the grain.

At this time, in order to switch the rotor driving lever 56 from the coupling engagement position to the coupling release position, a locking groove 80a to be engaged with the rotor control knob 561 is provided and the rotor driving lever 56 And a coupling release lever 80 hinged to the pulverizer main body 22 side is further installed. In this case, when the rotor driving lever 56 is hooked to the locking groove 80a of the coupling release lever 80 as shown in FIG. 6, coupling engagement is made so that the tributary feed rotor 32 is rotated, When the spring tension adjusting shaft 58 is pulled out by releasing the engagement between the locking groove 80a and the coupling release lever 80 by rotating the coupling arm 80, the right coupling arm 54b is rotated as described above, .

One end is connected to the coupling release lever 80 and the other end is connected to the right connection arm 54b so that the rotation operation of the rotor driving lever 56 is performed when the coupling release lever 80 is released from the coupling release operation, And a release lever tension spring 82 connected to the release lever spring 82 is further installed. Here, the tension of the release lever tension spring 82 is adjusted by the rotation operation of the spring tension adjustment shaft 58.

On the other hand, in order to adjust the crushing gap between the driving crushing roller 24 and the driven crushing roller 26, a pair of driven crushing roller moving arms 70 and a roller gap adjusting shaft 72 may be further comprised . The pair of driven crushing roller moving arms 70 are provided in such a manner that the rotating shaft 26a of the driven crushing roller 26 is linearly movably supported by the crusher main body 22 and coupled to both ends of the rotating shaft of the driven crushing roller 26 And are pivotally connected to both sides of the pulverizer main body 22. The roller gap adjusting shaft 72 is pivotally connected to both ends of the coupling shaft 52 so that one end thereof is connected to the pair of driven crushing roller moving arms 70 and the other end is provided with a pressure adjusting handle 721, Respectively.

Accordingly, when the roller gap adjusting shaft 72 is rotated by the pressure adjusting handle 721, the pair of driven crushing roller moving arms 70 are rotated, whereby the driven crushing roller 26 is moved to the driving crushing roller 24) to adjust the crushing clearance.

Here, the roller gap adjusting shaft 72 is inserted in the roller gap adjusting shaft 72 so as to elastically support the adjusted roller gap, one end of which is supported on the side of the driven crushing roller moving arm 70, A gap supporting spring 74 supported at the end of the gap 72 may be further provided. The gap supporting spring 74 is disposed inside the cylindrical spring housing 75.

Further, on the lower side of the pulverizer main body 22, attachment-detachment brushes 90a and 90b may be further provided to remove the pulverized material attached to the driving pulverizing roller 24 and the driven pulverizing roller 26, respectively. It is preferable that the attachment detaching brushes 90a and 90b are preferably implanted with ostrich hair 901.

The reference numeral '1' is a 'grain guide upper plate', and '2' is a 'grain guide lower plate'.

The operation and operation of the thus configured grain crusher 10 will be described.

6, when the drive motor 14 is driven in a state in which the loader drive lever 56 is locked to the coupling release lever 80, the drive pulley roller 24 is driven through the drive pulley 16, Is rotated clockwise in Fig. Simultaneously, the timing belt 18 connected to the friction pulley 17 on the driving pulverization roller 24 rotates in the same clockwise direction. Whereby the driven crushing roller 26 rotates counterclockwise through the timing gear 19 connected to the timing belt 18. [

The rotor driven pulley 60 is rotated by the belt 8 connected to the driven pulley 9 on the side of the driven pulverizer roller 26 so that the grain feed rotor 32 rotates counterclockwise in Fig. (For example, brown rice, rice bran, barley, soybean, wheat and the like) which is introduced into the hopper 20 is introduced into the grain feeding port 22a and thereafter fed into the hopper 20 between the grain feeding rotor 32 and the grain feeding regulating shutter 34 And pulverized between the driving pulverizing roller 24 and the driven pulverizing roller 26 by a predetermined amount.

At this time, by rotating the rotor rotation operating shaft 40, the gap between the grain supply adjusting shutter 34 and the grain feeding rotor 32 is adjusted so that the amount of the grain fed into the driving pulverizing roller 24 and the driven pulverizing roller 26 It is possible to prevent the droplet phenomenon that is not properly pulverized and accumulated.

On the other hand, when it is necessary to stop the supply of the grain, when the coupling release lever 80 is lowered and rotated counterclockwise as shown in Fig. 6, the rotor drive lever 56 is rotated by the release lever tension spring 82 The right connection arm 54b rotates in the counterclockwise direction via the spring tension adjusting shaft 58 while rotating back to the home position so that the coupling shaft 52 also rotates in the same counterclockwise direction and the left connection arm 54a Is rotated to rotate the rotor coupler 62 via the rotor coupler operating rod 64 to release the coupling coupling so that the rotational force of the rotor driven pulley 60 can not be transmitted to the grain feed rotor 32, The rotation of the rotor 32 is stopped immediately and the supply of the grain is stopped.

Thereafter, the crushing gap between the driving crushing roller 24 and the driven crushing crushing roller 26 can be adjusted by rotating the roller gap adjusting shaft 72 and adjusting the elastic repulsive force of the gap supporting spring 74. The rotation operation of the roller gap adjusting shaft 72 can be performed even before the crushing is started.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

22:
24: Driving crushing roller
26: driven pulverizing roller
32: Grain supply rotor
34: Grain feed control shutter
36: shutter rotating arm
38: Shutter adjusting screw shaft
40: Shutter rotation operation shaft
52: Coupling shaft
54a, 54b: Left and right connecting arms
56: lever for driving the rotor
58: spring tension adjusting axis
60: Rotor driven pulley
62: Rotor coupler
64: Rotor coupler operating rod
70: driven pulverizing roller moving arm
72: Roller gap adjustment axis
74: spring for gap holding
80: Coupling release lever
82: release lever tension spring
90a, 90b: Brush for attaching detachment

Claims (8)

A pulverizer main body 22 having a grain feed port 22a at the top and a pulverized water outlet 22b at the bottom;
A drive crushing roller (24) located below the grain feed port (22a) and rotatably supported by the crusher main body (22);
And a driven pulverizing roller (26) supported by the pulverizer main body (22) in parallel with the drive pulverizing roller (24)
In order to control the feed rate for feeding the grain fed between the drive crushing roller 24 and the driven crushing roller 26,
A grain feed rotor 32 located below the grain feed port 22a and adapted to rotate in conjunction with the driven pulverizing roller 26;
A grain supply regulating shutter 34 rotatably supported on the grinder main body 22 side so as to be parallel to the grain feeder rotor 32 and changing a grain feed gap formed between the grain feeder rotor 32 and the grain feeder rotor 32, ;
A shutter rotating arm 36 fixedly connected to one end of the grain supply adjusting shutter 34;
A shutter adjusting screw shaft 38 one end of which is hinged to the shutter rotating arm 36;
And the other end of which is screwed to the other end of the shutter adjusting screw shaft 38 and is screwed to a support block 42 provided on one side of the pulverizer main body 22, And a rotation operation shaft (40)
In order to control the rotational drive of the grain feeding rotor 32,
A coupling shaft 52 disposed on the driving crushing roller 24 and rotatably supported on the crusher main body 22;
Left and right connecting arms 54a and 54b fixed to both ends of the coupling shaft 52;
A rotor driving lever 56 having one end rotatably pivotally coupled to one side of the pulverizer main body 22 and having a rotor manipulating knob 561 at the other end;
A spring tension adjusting shaft 58 hinged to the rotor driving lever 56 at one end and having a spring tension adjusting handle 581 at the other end and pivotally coupled to the right connecting arm 54b;
A rotor driven pulley 60 rotatably supported by the grain supply adjusting shutter 34;
A rotor coupler (62) coupled to the grain supply regulating shutter (34) side for interrupting the rotational force of the rotor driven pulley (60) of the drive pulley;
And a rotor coupler operating rod (64), one end of which is hinged to the rotor coupler (62) and the other end is pivotally connected to the left connecting arm (54a)
And has a locking groove 80a to be engaged with the rotor operation handle 561 to switch the rotor driving lever 56 from the coupling engagement position to the coupling release position and to be close to the rotor driving lever 56 And a coupling release lever (80) hinged to the pulverizer main body (22) side is further provided. delete delete The method according to claim 1,
In order to adjust the crushing clearance between the drive crushing roller 24 and the driven crushing roller 26,
A rotary shaft of the driven crushing roller 26 is supported movably in the crusher main body 22 so as to be linearly movable and connected to both ends of the rotary shaft of the driven crushing roller 26, A pair of driven crushing roller moving arms 70;
A roller clearance adjustment mechanism in which one end of the coupling shaft is pivotally connected to both ends of the coupling shaft 52 so that one end thereof is connected to the side of the pair of driven crush roller moving arms 70 and the other end is provided with a pressure control handle 721, Further comprising a shaft (72). 5. The method of claim 4,
In order to elastically support the adjusted roller clearance, the roller clearance adjusting shaft 72 is inserted into the roller clearance adjusting shaft 72 so that one end thereof is supported by the driven crushing roller moving arm 70 and the other end is supported by the roller clearance adjusting shaft 72) is further provided with a gap supporting spring (74) supported at an end of the grain grinder (72). delete The method according to claim 1,
One end is connected to the coupling release lever 80 and the other end is connected to the coupling arm 54b on the right side so that the rotation operation of the rotor driving lever 56 takes place during the coupling release operation of the coupling release lever 80 Further comprising a release lever tension spring (82) connected to the release lever tension spring (82). The method according to claim 1,
Disposed on the lower side of the pulverizer main body 22 are attachment-detachment brushes 90a and 90b for dropping the pulverized materials attached to the driving pulverizing roller 24 and the driven pulverizing roller 26, respectively Grain grinder.

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