KR20160020363A

KR20160020363A - Crusher

Info

Publication number: KR20160020363A
Application number: KR1020150111826A
Authority: KR
Inventors: 강두석
Original assignee: 강두석
Priority date: 2014-08-13
Filing date: 2015-08-07
Publication date: 2016-02-23
Also published as: KR101724540B1

Abstract

The present invention relates to a pulverizer, and more particularly, to a pulverizer which includes a pulverizing case having an input hopper into which an object to be pulverized is charged, a pulverizing unit installed inside the pulverizing case below the charging hopper, A collecting hopper installed in the crushing case under the crushing unit for collecting the crushing object crushed by the crushing unit; and a conveying unit connected to the collecting hopper for conveying the crushing object collected from the collecting hopper Wherein the transfer unit comprises a unit member having an opened first semicircular portion having a predetermined length, a cover member coupled to the unit member so as to close the open side of the first semicircular portion, 1 < / RTI > semi-circular section, the inlet chute connected to the collecting hopper, A first shaft receiving portion coupled to one end of the unit member and having a first shaft inserting portion, a second shaft receiving portion coupled to the other end of the unit member, And a pressing and fixing unit for pressing and fixing the cover member to the unit member. The first shaft inserting portion and the second shaft inserting portion are provided at both sides of the rotating shaft.
The pulverizer according to the present invention is advantageous in that the transfer unit for transferring the pulverized object to be polished is provided with the unit member and the cover member which are easily separated from each other, and therefore the inside of the transfer unit can be easily cleaned.

Description

Crusher {Crusher}

The present invention relates to a pulverizer, and more particularly, to a pulverizer capable of smoothly performing internal cleaning of a transfer tube for pulverizing an object to be pulverized in multiple stages and transferring the object to be pulverized.

Generally, a red pepper grinder is a pulverizer used to produce red pepper powder by drying the red pepper in the sunlight and then crushing the green pepper to some extent without water, and is constituted by abutting the outer circumferential surface between the grinding roller and the grinding roller, .

The hot pepper grinder is provided with a hot pepper putting hopper into which hot pepper is put, and a crushing roller for crushing the hot pepper to be introduced is in contact with the lower part of the hot pepper putting hopper. The crushing roller receives rotational force from the driving motor have.

In addition, on the upper surface of the crushing roller, a clustered dispersion rod having a plurality of crushing blade members is rotatably provided on an outer circumferential surface to crush the red pepper and the red pepper powder, and the dispersed red pepper powder is dispersed into the lower crushing roller .

The pulverizing roller is provided with a hopper for temporarily storing pulverized red pepper powder. A lower part of the hopper is provided with a transfer screw for transferring pulverized red pepper powder to one side.

Further, a discharge screw for discharging the red pepper powder transferred by the transfer screw to the outside is orthogonal to the transfer screw.

One end of the discharge screw is provided with a crushing blade, and one end of the discharge pipe incorporating the discharge screw is provided with a screw shaft support plate supporting a screw shaft of the discharge screw and having a plurality of discharge ports through which crushed red pepper powder is discharged.

A cutting piece is attached to the inner circumferential surface of the screw shaft support plate so as to project radially so as to intersect the crushing blade when the crushing blade rotates to crush the red pepper powder.

However, the transfer pipe for transferring the crushed red pepper is adhered to the inside of the transfer pipe, and over time, the transfer pipe is impaired to contaminate the inner surface of the transfer pipe.

Therefore, the inside of the conveyance pipe is periodically separated and cleaned. Conventionally, the conveyance pipe is formed into a cylindrical shape, and both ends of the screw provided inside the conveyance pipe are fixed by the pillow block. There is a problem that a lot of work work is required.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a crusher capable of dividing a conveyance pipe for conveying a crushed object to be crushed in the longitudinal direction and easily separating the screw from the conveyance pipe .

According to an aspect of the present invention, there is provided a grinding apparatus comprising: a grinding case having an input hopper into which an object to be ground is charged; a grinding unit installed in the grinding case below the loading hopper, A collecting hopper installed in the crushing case under the crushing unit for collecting the crushing object crushed by the crushing unit; and a crushing unit connected to the crushing unit, And a transfer unit for transferring the object, wherein the transfer unit comprises: a unit member having an opened first semicircular portion having a predetermined length; and a cover coupled to the unit member so as to close the open side of the first semicircular portion. And an inlet chute provided at both ends of the first semicircular portion, the inlet chute being connected to the collecting hopper, And a discharge chute for discharging the object to be ground in the unit member; a first shaft receiving part coupled to one end of the unit member and having a first shaft inserting part; and a second shaft receiving part coupled to the other end of the unit member, A second shaft receiving portion formed with a second shaft inserting portion, a screw having both sides of a rotating shaft provided on the first shaft inserting portion and the second shaft inserting portion, and a pressurizing member for pressing and fixing the cover member to the unit member. It has a government.

Wherein the pressure fixing portion comprises: a main bar detachably connected to the unit member at a position adjacent to an open side of the first semicircular portion at both ends thereof, and a main bar extending from the main bar to press the cover member coupled to the unit member And a pressing bolt threadably coupled to the main bar so as to be able to move back and forth inside the first semicircular portion.

Wherein the pressure fixing portion includes a main bar detachably joined to the unit member at both ends of the unit member adjacent to the open side of the first semicircular portion, a pressure body installed in the main bar, And a sliding member provided on the pressing body so as to be able to move back and forth from the pressing member to the pressing member so that the sliding member can protrude from the pressing body to the inside of the first semi- The elastic member may be provided.

The pulverizer according to the present invention is advantageous in that the transfer unit for transferring the pulverized object to be polished is provided with the unit member and the cover member which are easily separated from each other, and therefore the inside of the transfer unit can be easily cleaned.

1 is a partial cutaway perspective view of a mill according to the present invention,
Fig. 2 is an exploded perspective view of the transfer unit of the crusher of Fig. 1,
Fig. 3 is a cross-sectional view of the transfer unit of the crusher of Fig. 1,
4 is an exploded perspective view of a transfer unit of a crusher according to another embodiment of the present invention,
Fig. 5 is a sectional view of the conveying unit of the crusher of Fig. 4;

Hereinafter, a pulverizer according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 show a mill 100 according to an embodiment of the present invention.

Referring to the drawings, a crusher 100 includes a crushing case 200 having an input hopper 201 into which an object to be crushed is charged, and a crusher 200 installed inside the crushing case 200 below the input hopper 201 A crushing unit 300 installed in the crushing case 200 under the crushing unit 300 for crushing the crushing object injected through the input hopper 201, A collecting hopper 400 for collecting the object to be crushed and a transfer unit 500 connected to the collecting hopper 400 and transferring the object to be crushed collected from the collecting hopper 400.

The crushing case 200 is provided with an inner space 202 in which the crushing unit 300 can be installed, and the lower part is opened. The pulverizing case 200 is provided with the loading hopper 201 on its upper surface. The injection hopper 201 is installed to communicate with the crushing case 200 and has an upper surface opened to allow the object to be crushed to be introduced therein.

The crushing unit 300 is rotatably installed in the crushing case 200 under the loading hopper 201 and rotatably supports the crushing object 300 in the crushing case 200 so that the crushing unit 300 can press the crushing object, And a rotatable rotatably installed in the crushing case 200 below the input rotatable bar 310. The rotatable rotatable bar 310 is rotatably installed in the crushing case 200 under the rotatable rotatable bar 310, A crushing member 320 provided with a plurality of crushing blade members 321 for crushing the crushing object dropped by the crushing member 320 and a crushing member 320 installed at the crushing case 200 below the crushing member 320, A plurality of first crushing rollers 330 installed to the crushing case 200 under the first crushing rollers 330 and a plurality of first crushing rollers 330 disposed in the crushing case 200 below the first crushing rollers 330, The object to be ground is ground And a plurality of second crushing rollers (340) provided to the crusher.

The input rotary bar 310 extends in the left-right direction and both ends are rotatably installed inside the crushing case 200 at a position spaced downward relative to the input hopper 201. The pressing plate 311 protrudes in a direction away from the rotation center line of the input rotation bar 310 and is formed in a plate shape extending along the longitudinal direction of the rotation input bar 310.

At this time, the pressure plate 311 is formed with a plurality of through grooves 312 at its edges to prevent interference with the pulverizing blade member 321. The through grooves 312 are formed at positions opposed to the pulverizing blade members 321 so that the pulverizing blade member 321 can pass therethrough.

On the other hand, although the input rotary bar 310 is not shown in the drawing, it is rotated by the inlet opening portion provided in the pulverizing case 200. The input driving unit includes a first driving motor, a first pulley installed on a rotary shaft of the first driving motor, a second pulley installed on one end of the input rotary bar 310, a first belt connected to the first and second pulleys, Respectively.

The input rotary bar 310 configured as described above forcibly feeds the object to be crushed into the hopper 201 while being rotated by the inlet opening portion so that the object to be crushed is more smoothly put into the crushing member 320.

The crushing member 320 extends in the left-right direction and has both ends rotatably installed inside the crushing case 200 at a position spaced downward from the inputting rotation bar 310. The pulverizing member 320 is provided with a plurality of pulverizing blade members 321 spaced apart from each other along the longitudinal direction. The pulverizing blade member 321 protrudes in a direction away from the center line of rotation of the pulverizing member 320, and a pulverizing blade (not shown) is formed on the front end of the pulverizing blade member 321 in order to grind the pulverizing object. At this time, the pulverizing blade members 321 are preferably arranged so as to be spirally arranged along the longitudinal direction of the pulverizing member 320.

The crushing member 320 is not shown in the drawing, but is rotated by the crushing driving unit installed in the crushing case 200. The crushing drive unit includes a second drive motor, a third pulley installed on the rotary shaft of the second drive motor, a fourth pulley installed on one end of the crushing member 320, and a second belt connected to the third and fourth pulleys Respectively.

The first crushing roller 330 extends in the left-right direction and is formed into a cylindrical shape having a predetermined outer diameter. The first crushing rollers 330 are installed in the crushing case 200 so as to be spaced apart from each other in the fore-and-aft direction. At this time, it is preferable that the first crushing rollers 330 are installed such that the abutting portion thereof is positioned below the crushing member 320.

At this time, one of the first crushing rollers 330 is installed in the first roller driving unit 331 and rotated by the first roller driving unit 331, and the other one of the first crushing rollers 330 is rotated in the first interval (Not shown). At this time, the other one of the first crushing rollers 330 is not shown in the drawing, but is installed in the crushing case 200 so as to be slidable in the front-rear direction.

The first roller driving unit 331 includes a first rotating motor 332 provided on the side surface of the crushing case 200, a first driving pulley 333 provided on the rotating shaft of the first rotating motor 332, A first driven pulley 334 provided on the rotation axis of one of the first and second driven pulleys 330 and 333 and a first transmission belt 335 connected to the first driven pulley 333 and the first driven pulley 334. [

Although not shown in the drawing, the first interval adjusting unit includes a plurality of first adjusting blocks respectively provided at both ends of the rotational axis of the other one of the first crushing rollers 330, A plurality of second adjusting blocks respectively provided in the crushing case 200 and a plurality of second adjusting blocks respectively screwed to the second adjusting blocks so as to be advanced and retreated in forward and backward directions and having a rear end rotatably mounted on the first adjusting blocks Of the first adjustment bolt. The operator can adjust the distance between the first crushing rollers 330 by moving the first adjusting bolt with respect to the second adjusting block. The first interval adjusting unit is not limited to the above-described configuration, but may be any means capable of moving the first crushing roller 330 in the forward and backward directions.

The second crushing roller 340 extends in the left-right direction and is formed into a cylindrical shape having a predetermined outer diameter. The second crushing rollers 340 are installed in the crushing case 200 so as to be spaced apart from each other in the fore-and-aft direction and to abut the outer circumferential surface. At this time, it is preferable that the second crushing rollers 340 are installed so that their abutting portions are positioned below the mutual abutting portions of the first crushing rollers 330.

At this time, one of the second crushing rollers 340 is installed in the second roller driving unit 341 and rotated by the second roller driving unit 341, and the other one of the second crushing rollers 340 is rotated in the second interval (Not shown). At this time, the other one of the second crushing rollers 340 is installed in the crushing case 200 so as to be slidable in the front-rear direction although not shown in the figure.

The second roller driving unit 341 includes a second rotating motor 342 provided on the side surface of the crushing case 200, a second driving pulley 343 provided on the rotating shaft of the second rotating motor 342, A second driven pulley 344 mounted on the rotational axis of one of the first and second drive pulleys 340 and 343 and a second transmission belt 345 connected to the second driven pulley 343 and the second driven pulley 344. [

Although not shown in the drawing, the second gap adjusting portion includes a plurality of third adjusting blocks respectively provided at both ends of the rotational axis of the other one of the second crushing rollers 340, A plurality of fourth control blocks respectively provided in the crushing case 200 and a plurality of fourth control blocks each of which is extended in the front and rear direction and screwed to the fourth control block so as to be moved forward and backward, Of the second adjusting bolt. The operator can adjust the distance between the second crushing rollers 340 by moving the second adjusting bolt with respect to the fourth adjusting block. The second interval adjusting unit is not limited to the above-described configuration, but may be any means that can move the second crushing roller 340 in the forward and backward directions.

The object to be ground by the milling member 320 is re-milled through the first milling rollers 330 and the second milling rollers 340, so that the particles are finely pulverized.

The collecting hopper 400 is installed in the crushing case 200 at a position spaced downward with respect to the mutual abutting portion of the second crushing rollers 340. The collecting hopper 400 extends in the left-right direction and has a transfer space in which an upper surface is opened. Further, the collecting hopper 400 is communicated with the inlet chute 513 of the transfer unit 500, which will be described later, at the left end.

Meanwhile, the collecting hopper 400 is provided with a forcible transfer unit 410 for transferring the object to be crushed into the transfer space to the inflow chute 513 side. The force transmitting portion 410 includes a conveying screw 411 extending in the left and right direction and having both ends rotatably supported by the collecting hopper 400 so as to be drawn into the conveying space and having a spiral blade on the outer circumferential surface thereof, 411) for rotating the conveying screw 411 so that the object to be ground in the conveying space is conveyed toward the inlet chute 513.

The transfer unit 500 includes a unit member 511 having an opened first semicircular portion 515 having a predetermined length and a unit member 511 having an opened side surface of the unit member A discharge chute 514 installed at the upper and lower ends of the first semicircular portion 515 for discharging the object to be ground in the unit member 511, A housing 510 having an inlet chute 513 connected to the collecting hopper 400 and a second shaft receiving portion 520 connected to an upper end of the unit member 511 and having a first shaft inserting portion 521, A second shaft receiving portion 530 coupled to a lower end of the unit member 511 and having a second shaft inserting portion 531 and a second shaft receiving portion 530 having a first shaft inserting portion 521 and a second shaft inserting portion 531. [ And a pressure fixing unit 550 for pressing and fixing the cover member 512 to the unit member 511. The screw member 540 is provided with a screw 540,

The unit member 511 extends in the vertical direction by a predetermined length and has a first semicircular portion 515 therein. The first semicircular portion 515 is opened at the rear side and extended in the longitudinal direction. The first semicircular portion 515 is convexly formed so as to be narrower toward the front from the opened rear surface.

A flange member 516 is formed on the upper and lower ends of the unit member 511 so that the first and second bearing units 520 and 530 can be coupled to the upper and lower ends of the unit member 511, respectively. The flange member 516 is formed with a plurality of through-holes so as to penetrate the flange member 516 in the vertical direction along the edge.

In addition, a plurality of coupling brackets 517 are fixed to the rear edge of the unit member 511. The engaging bracket 517 protrudes rearward with respect to the unit member 511 and has an engaging hole 518 formed to penetrate the unit member 511 in the right and left direction. At this time, it is preferable that the coupling brackets 517 are installed in two mutually opposed positions with respect to the center line of the unit member 511 in the vertical direction. The two groups of the engagement brackets 517 are arranged to be spaced apart from each other along the vertical direction.

The cover member 512 has a width corresponding to the width of the first semicircular portion 515 and is formed in a plate shape extending in the vertical direction. A second semicircular portion 519 is formed on the front surface of the cover member 512 so as to divide the rotational space of the screw 540 in a longitudinal direction. The semicircular portion 519 is coupled with the first semicircular portion 515. The second semicircular portion 519 is formed to protrude from the cover member 512 to the inside of the first semicircular portion 515 and has an edge on the inner wall surface where the width of the first semicircular portion 515 is narrowed So as to be interfered with. When the cover member 512 is drawn into the first semicircular portion 515, the edge of the restricting member is interfered with the inner surface of the first semicircular portion 515 whose width is narrowed, so that the cover member 512 is cut off.

The inflow chute 513 is provided at the lower end of the unit member 511 and has an inflow path communicating with the inside of the unit member 511 therein. The inlet chute 513 is connected to the left end of the collecting hopper 400 at one end. The discharge chute 514 is provided at the upper end of the unit member 511 and has a discharge passage communicating with the inside of the unit member 511 therein. The discharge chute 514 has a discharge port formed at an end thereof to discharge the object to be crushed in the discharge path.

The first roller bearing 520 is fixed to the unit member 511 so as to cover the upper end of the unit member 511. A first fastening hole is formed in the first bearing part 520 at a position facing the through hole of the flange member 516 so that the fixing bolt 522 can pass therethrough. The fixing bolt 522 is inserted into the through hole of the flange member 516 of the first shaft receiving portion 520 and the fixing nut 523 is fastened to the end portion of the first shaft receiving portion 520, And fixed to the member 511.

In addition, a first shaft insertion portion 521 is formed on the lower surface of the first shaft receiving portion 520. The first shaft inserting portion 521 is protruded downward with respect to the first shaft receiving portion 520 and has a receiving groove formed therein to allow the upper end of the screw 540 to be inserted. The first shaft inserting portion 521 rotatably supports the screw 540.

The second bearing portion 530 is fixed to the unit member 511 so as to cover the lower end portion of the unit member 511. A second fastening hole is formed in the second bearing portion 530 at a position opposite to the through hole of the flange member 516 so that the fastening bolt 522 can pass therethrough. The fixing bolt 522 is inserted into the through hole of the flange member 516 of the second shaft receiving portion 530 and the fixing nut 523 is fastened to the end portion of the second shaft receiving portion 530, And fixed to the member 511.

A second shaft insertion portion 531 is rotatably mounted on the upper surface of the second shaft receiving portion 530. The second shaft inserting part 531 protrudes upward with respect to the second shaft receiving part 530 and the lower end of the screw 540 is fixed and rotates together with the screw 540. The transfer unit 500 further includes an operation motor 532 installed on the rotation axis of the second shaft receiving unit 530 and rotating the swaging screw 540 through the second shaft receiving unit 530.

The screw 540 extends in the vertical direction and the upper end of the screw 540 is rotatably supported by the first shaft insertion portion 521 of the first shaft receiving portion 520 and the lower end of the screw 540 is inserted into the second shaft insertion portion 530 of the second shaft receiving portion 530, And is rotated together with the second shaft receiving portion 530. The screw 540 is capable of transferring the object to be crushed contained in the unit member 511 during rotation, and has a spiral transfer blade 541 formed on the outer peripheral surface thereof.

The pressure fixing portion 550 includes a plurality of main bars 551 each of which is detachably coupled to the unit member 511 at both ends in a position adjacent to the open side of the semicircular portion, And a plurality of pressing bolts 552 screwed to the main bars 551 so as to be able to move back and forth from the main bar 551 to the inside of the semicircular part so as to press the cover member 512.

The main bar 551 extends in the left-right direction and is inserted into the coupling hole 518 of the coupling bracket 517 provided on the unit member 511 so that both ends thereof face each other. The main bar 551 is formed with an insertion port 553 so as to penetrate the main bar 551 in the forward and backward directions so that the press bolt 552 can pass through the center bar. It is preferable that a female screw acid is formed on the inner circumferential surface of the insertion port 553.

The press bolt 552 extends in the front-rear direction and is formed with male threads on the outer circumferential surface so as to be screwed into the insertion port 553 of the main bar 551. A gripping member 554 is formed at the rear end of the pressing bolt 552 so that the operator can grip the pressing bolt 552 to easily rotate the pressing bolt 552. The gripping member 554 is formed in a disc shape having an outer diameter larger than the outer diameter of the pressing bolt 552.

A contact plate 555 is provided at the front end of the pressing bolt 552 so as to be in contact with the rear surface of the cover member 512. The contact plate 555 is formed in a disc shape having an outer diameter larger than the outer diameter of the press bolt 552 so as to extend the contact area with the cover member 512. The contact plate 555 is formed of a rubber-like material having a predetermined elasticity so as to prevent the cover member 512 from being damaged when the pressing plate 552 is pressed by the pressing bolt 552.

When the powdered object is clogged in the transfer unit 500, first, the pressing bolt 552 is rotated to move backward with respect to the main pipe, and then the main bar 551 is separated from the engaging bracket 517. The separation of the pressure fixing portion 550 is completed and the cover member 512, the first shaft receiving portion 520 and the second shaft receiving portion 530 are separated from the unit member 511 so that the screw 540 and the unit member 511) Clean the inside. When the cleaning is completed, the first shaft receiving portion 520 and the second shaft receiving portion 530 are fixed to the unit member 511, and the cover member 512 is inserted into the rear of the unit member 511. When the cover member 512 is completely drawn, both ends of the main bar 551 are coupled to the engaging brackets 517, and the pressing bolt 552 is rotated to advance forward from the main tube. At this time, the contact plate 555 provided at the front end of the pressing bolt 552 presses the cover member 512 to firmly engage the cover member 512 from the unit member 511.

The grinder 100 according to the present invention is provided with the unit member 511 and the cover member 512 in which the transfer unit 500 for transferring the pulverized object to be polished is easily separated from each other, There is an advantage that it is easy.

4 and 5, a pressure fixing portion 560 according to another embodiment of the present invention is shown.

Elements having the same functions as those in the previous drawings are denoted by the same reference numerals.

Referring to the drawings, the pressurizing and fixing unit 560 includes a main bar 561 having both ends thereof detachably coupled to the unit member 511 at a position adjacent to the open side of the semicircular part, A sliding member 563 provided on the pressing body 562 so as to be able to move back and forth from the main bar 561 to the inside of the semicircular portion and a sliding member 563 fixed to the unit member 511, And an elastic member 564 for providing an elastic force such that the sliding member 563 projects from the pressing body 562 to the inside of the semicircular portion so as to press the sliding member 563 against the cover member 512 .

The main bar 561 extends in the left-right direction and is inserted into the coupling hole 518 of the coupling bracket 517 provided on the unit member 511 so that both ends thereof face each other. The main bar 561 has a sliding hole 568 formed at the center thereof to allow the sliding member 563 to pass therethrough.

The pressing body 562 is installed on the rear surface of the main bar 561 and has a receiving space communicating with the sliding port 568 so as to be inserted into the rear end of the sliding member 563.

The sliding member 563 is extended in the front and rear direction by a predetermined length and is inserted into the sliding port 568 of the main bar 561 and the inlet port of the pressing body 562 to be inserted into the main bar 561 and the pressing body 562 As shown in Fig. A disc-shaped interference member 566 having an outer diameter larger than the inner diameter of the sliding sphere 568 is formed at the rear end of the sliding member 563 which is drawn into the pressurizing main body 562.

The sliding member 563 is provided with a contact plate 567 at the front end thereof so as to contact the rear surface of the cover member 512. [ The contact plate 567 is formed in a disc shape having an outer diameter larger than the outer diameter of the press bolt 552 so as to extend the contact area with the cover member 512. The contact plate 567 is preferably made of a rubber-like material having a predetermined elasticity so as to prevent the cover member 512 from being damaged when the sliding member 563 is pressed by the sliding member 563.

The front end of the elastic member 564 is supported by the interference member 566, and the rear end of the elastic member 564 is supported by the inner surface of the pressing body 562. The elastic member 564 provides an elastic force such that the sliding member 563 protrudes forward.

The pressing member 560 constructed as described above presses the cover member 512 to the inside of the unit member 511 by the elastic force of the elastic member 564, (511).

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.

Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

100: crusher
200: crushing case
201: Feed hopper
300: Crushing unit
310: input rotary bar
320: crushing member
330: first crushing roller
340: Second crushing roller
400: collecting hopper
500: transfer unit
510: housing
511: Unit member
512: cover member
515: first semicircular part
519: second semicircular part
520:
530:
540: Screw
550:
551: Main bar
552: pressure bolt

Claims

A grinding case having an input hopper into which an object to be ground is charged;
A crushing unit installed inside the crushing case below the charging hopper and crushing the crushing object introduced through the charging hopper;
A collecting hopper installed in the crushing case under the crushing unit and collecting the crushing object crushed by the crushing unit;
And a transfer unit connected to the collecting hopper for transferring the object to be crushed collected from the collecting hopper,
The transfer unit
A unit member having an opened first semicircular portion having a predetermined length, a cover member coupled to the unit member so as to close the open side surface of the first semicircular portion, and a cover member provided at both ends of the first semicircular portion A housing having an inlet chute connected to the collecting hopper and a discharge chute for discharging the object to be crushed in the unit member;
A first shaft receiving portion coupled to one end of the unit member and having a first shaft inserting portion,
A second bearing part coupled to the other end of the unit member and having a second shaft inserting part,
A screw having both sides of the rotary shaft installed in the first shaft insertion portion and the second shaft insertion portion,
And a pressing and fixing unit for pressing and fixing the cover member to the unit member.

The method according to claim 1,
The pressure-
A main bar detachably coupled to the unit member at a position adjacent to an open side of the first semicircular portion,
And a pressing bolt threadably coupled to the main bar so as to be able to move back and forth from the main bar to the inside of the first semicircular part so as to press the cover member coupled to the unit member.

The method according to claim 1,
The pressure-
A main bar detachably coupled to the unit member at a position adjacent to an open side of the first semicircular portion,
A pressurizing main body provided on the main bar,
A sliding member provided on the pressing body so as to be able to move back and forth from the main bar to the inside of the first semicircular portion;
And an elastic member for providing an elastic force so that the sliding member projects from the pressing body to the inside of the first semicircular portion so that the cover member coupled to the unit member can press the sliding member.