KR930007861Y1 - Extruding machine - Google Patents

Abstract

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Description

Crushing Extruder

1 is a front view of a crushing extruder 1 showing a preferred embodiment of the present invention.

Figure 2 is a partial cross-sectional view of Figure 1 showing the main part of the present invention.

3 is a cross-sectional view of the multistage screw body 4 of the present invention.

4 is an exploded perspective view of a bite insert flange 5 and a grinding nozzle 6 which are main parts of the present invention;

5 is a longitudinal sectional view of the grinding nozzle 6 of the present invention.

* Explanation of symbols for main parts of the drawings

1: grinding extruder 2: main body

3a: motor 3b: power transmission unit

4 screw body 5 flange

6: grinding nozzle 7: heating furnace

8: forming nozzle 9: cutting machine

10: cooling fan 11: hopper

12: drive shaft 13: extrusion screw

14: screw screw 15: connection pipe

16: uneven coupling 17: rotary joint

18: fixing bolt 19: injection hole

20: fixed key 21: projection

22: set screw 23: grinding nozzle insertion groove

24: grinding nozzle fixing groove 25: screw hole

26: engaging protrusion 27: bite insertion groove

28: carbide byte 29: fixed screw

30: fixing groove

The present invention relates to a crushing extruder for crushing and extruding rice hulls, in particular, by installing a screw in a multi-stage, easy to replace the extrusion and the screw feed, and to install and repair the bite-insertable grinding nozzle on the flange economical The invention relates to a multistage screw and bite insert milling extruder that is more convenient and convenient.

Generally, when the motor rotates, the screw screw and the extrusion screw, which are in line with the drive shaft of the screw body through the interlocking gear, rotate on the central axis of the grinding nozzle, and the chaff is loaded into the flange of the grinding barrel from the raw material hopper. The raw materials such as these are pressed into the grinding nozzle by a press screw, compressed and crushed between the extrusion screw and the grinding nozzle, press-molded into the molding nozzle, and heat-solidified by a heating furnace surrounding the molding nozzle and extruded from the end of the molding nozzle. After cooling, it is cut by a cutter to make a solid fuel.

At this time, raw materials such as rice hull have high abrasion, which causes severe wear of the grinding nozzle or extruded screw of the grinding extruder, so that the grinding extruder can not be used for a long time. It needs to be replaced.

Thus, the conventional imperial chaff charcoal maker is formed with a hard metal casting of a fixed grinding barrel or a low-low grinding powder of chaff, and a hard metal coating layer is formed on the inside of the grinding barrel or on the surface of the grinding body to prevent severe abrasion by chaff. In addition, there was a defect that was difficult to repair due to the inability to replace wear parts.

In addition, in order to remove the above defects, grooves are formed on the spiral grinding protrusions formed on the inside of the pulverization cylinder and on the surface of the pulverization body, and a plurality of wear resistant carbide bites are inserted and welded to increase wear resistance. This complex and also had the disadvantage that it is impossible to replace the worn bite.

In the conventional screw and nozzle type chaff charcoal making machine, the surface of the screw is hard-plated to prevent wear of the extruded screw, and the surface of the screw is hard-plated to press the coolant through the inner perforation of the screw and to prevent the wear of the screw. Treatment, and by pressing the coolant through the inner perforation of the screw to reduce the wear by cooling the tip of the screw, but if the tip of the screw wear expensive screw, there was a problem that must be replaced.

And there is a radial projection on the inner conical periphery of the cast extrusion screw to reduce the wear of the extrusion nozzle body, but the wear of the projection can not effectively prevent, if the projection itself wears out, the whole grinding nozzle must be replaced Was uneconomical.

Therefore, in the multi-stage screw and bite-type crushing extruder of the present invention, the parts of the screw body divided into three stages and the connecting pipe inserted through the screw body are integrally fastened, so that the wear occurs most severely by detaching the connecting pipe. Extrusion of the part and the part of the screw can be quickly and easily separated and replaced, and cooling air is blown into the connecting pipe to cool the screw of the tip screw to reduce wear.

In the present invention, the abrasive nozzle with severe wear is formed separately from the forming nozzle, and a plurality of linear bite grooves are formed radially in the conical inner circumference of the grinding nozzle, and the wear-resistant carbide bite is inserted into the bite groove, and then When the cemented carbide bite is worn out, the screw is disassembled so that only the worn bite can be easily removed.

In addition, due to the protrusion of the fixed cemented carbide bite, the effect of preventing wear of the grinding nozzle body is simultaneously obtained.

Then, at the outer periphery of the insertion part of the grinding nozzle, some fastening protrusions are formed into a reflection image and inserted into the insertion groove provided in the flange of the grinding barrel, and then the locking nozzle is fastened with the flange by the fixing key to easily remove the grinding nozzle from the flange. The detachable replacement of the cemented bite inserted in the inner circumference of the grinding nozzle and the removal of the worn extruded and press screw may be performed at the same time.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In Figs. 1 to 5, reference numeral 1 denotes a crushing extruder of the present invention, and the crushing extruder 1 screws the main body 2, the motor 3a embedded in the main body, and the power of the motor. A screw body 4 interlocked with the power transmission part 3b and the electric power transmission part to be transmitted to the sieve and into which the cooling fan 10 is inserted, and a flange 5 provided directly below the hopper 11, It consists of a grinding nozzle 6 fastened to the flange, a heating furnace 7, a molding nozzle 8 and a cutter 9 provided at the tip of the electric grinding nozzle.

The milling extruder 1 of the present invention is similar to the structure of the milling extruder according to the prior art. However, the grinding extruder 1 of the present invention has improved the structure of the screw body 4, the flange 5 and the grinding nozzle 6 to be more practical.

Hereinafter, the improved structure in the crushing extruder 1 of the present invention will be mainly described.

2 and 3, the screw body 4 of the present invention is composed of a drive shaft 12, an extrusion screw 13, and a pressure screw 14, which are formed by the uneven coupling portion 16. Are combined in stages. These screw bodies 4 are hollow cylinders, and the connecting pipe 15 is inserted therein, the front end of the connecting pipe 15 being screwed to the pressure feeding screw 14, and the rear end of the connecting pipe 15 and the rotary joint 17. Coupling fixation was fixed to the connecting pipe (15) and the drive shaft (12) by a fixed bolt (18).

Therefore, the air supplied from the outside passes through the connecting pipe 15 through the rotary joint 17 and is injected into the injection port 19 of the pressure feeding screw 14 to cool the pressure feeding screw 14 and the pulverized raw material. It was.

At the predetermined point of the drive shaft 12, as shown in FIGS. 1 and 2, the cooling fan 10 is inserted and fixed, and the rear surface of the pulverization cylinder installed at the front with the rotation of the screw body 4 is fixed. Allowed to cool.

Again in FIGS. 2 and 4 and 5, the flange 5 and the grinding nozzle 6 of the present invention are fixedly detachably fixed by the fixing key 20.

The flange 5 forms a plurality of grinding nozzle inserting grooves 23 and grinding nozzle fixing grooves 24 having a " " shape at the periphery of the distal end to which the grinding nozzles are fastened, and adjacent to the screw holes 25. Perforation was made to enable a screw-in combination with the fixing screw 22 of the fixing key 20.

Then, the fixing key 20 forms a projection 21 to insert the grinding nozzle 6 into the flange 5, and then the fixing key 20 is the grinding nozzle insertion groove 23 of the flange (5). ) To close.

On the other hand, the grinding nozzle 6 was formed to be detachable to the grinding nozzle insertion groove 23 and the fixing groove 24 of the above-described flange 5 by forming a plurality of engaging projections 26 on the outer periphery.

The grinding nozzle 6 has a plurality of wedge-shaped bite inserting grooves 27 formed at its inner circumference, and inserts the same type of cemented bite 28 into the bite inserting grooves. Fixing grooves 30 were formed on the rear surface to fix the cemented carbide bite 28 of the inner circumference with the fixing screw 29 at the outer circumference of the grinding nozzle 6.

Therefore, the structure of the grinding nozzle 6 into which the cemented carbide bite 28 is fixed is further improved in the grinding efficiency of thin and tough abrasive materials such as chaff due to the protrusion of the cemented carbide bite, and the grinding nozzle due to the protrusion of the cemented carbide bite 28. By reducing the wear of (6), it has an excellent effect that can greatly extend the life of the grinding nozzle.

In addition, by fixing the cemented carbide bite 28 on the inner circumference of the grinding nozzle 6 with the fixing screw 29, the cemented bite 28 can be easily removed by loosening the fixing screw 29 when the cemented bite 28 wears. Can be replaced.

In addition, in order to easily separate and replace the grinding nozzle 6 from the flange 5, a radially engaging protrusion 26 is formed on the outer periphery of the grinding nozzle 6 so that the grinding nozzle insertion groove 23 of the flange 5 is formed. Inserting into and fastening to the flange 5 with the fixing key 20 to facilitate the fastening and detachment of the worn grinding nozzle 6, as well as crushing by detaching the grinding nozzle 6 The extrusion screw 13 and the pressure feed screw 14 coaxially mounted in the nozzle 6 can be easily taken out and replaced.

In addition, when screwing apart the rotary joint 17 and the fixing bolt 18 adjacent to the rotary screw 17, the pressure feed screw 14 can be pulled out with the connecting pipe 15 to the front of the crushing extruder, so that the pressure feed screw 14 that causes the most wear Detachable replacement can be done easily at any time, so that it can quickly and effectively cope with the abrasion problem that occurs during the crushing and extruding of high abrasion materials such as chaff.

Meanwhile, as shown in FIG. 2 and FIG. 3, the injection hole 19 of the pressurized screw 14 is blown through the connecting pipe 15 by blowing cooling air through the air compressor with the rotary joint 17 of the present invention. Through the extrusion operation, the heated extrusion and the pressure screw (13, 14) is cooled from the inside to significantly reduce their wear.

And, the cooling air discharged through the injection port 19 is discharged to the outside through the center hole of the hollow extrusion product extruded from the molding nozzle (8).

Such a crushing extruder of the present invention has a number of special advantages, such as being able to replace the worn parts more quickly and more effectively, as well as to significantly reduce the degree of wear by cooling the heated portion at high heat.

Claims (3)

Screw-type crushing rods with helical crushing protrusions interlocked with the main body 2, the motor 3a embedded in the main body, the power transmission portion 3b for transmitting the power of the motor, and the electric power transmission portion, and the spiral crushing projections are formed by a screw rod. A screw body joined together, a flange 5 provided directly below the hopper 11, a grinding nozzle 6 fastened to the flange, a heating furnace 7 provided at the distal end of the electric grinding nozzle, and a molding nozzle (8) In the crushing extruder composed of the cutters (9), the screw body (4) is a hollow cylinder, and the drive shaft (12), the extrusion is provided with a spiral crushing projection on the outer periphery and unevenly coupled to the drive shaft Screw 13, concave-convex coupling to the electro-extrusion screw, a pressure feed screw 14 having an injection hole 19 therein, and a connecting pipe for detachably fixing them in the drive shaft, extrusion screw, pressure feed screws described above. (15) in combination, and the flange (5) is the main portion of the tip The grinding nozzle insertion groove 23 and the grinding nozzle fixing groove 24 are formed in the lead, and the grinding nozzle 6 having a plurality of engaging protrusions 26 formed on the outer circumference is inserted into the grooves and fixed. (6) is a crushing extruder, characterized in that the fixing key (20) having a projection (21) installed to be detachable from the grooves of the flange (5). According to claim 1, wherein the screw body 4 is inserted into the cooling pipe 10 on the outer periphery of the outer periphery, the inner periphery to supply the cooling air to insert and fix the connecting pipe 15, the tip of the connecting pipe Screw-type coupling with the screw screw 14, the rear end of the crushing extruder, characterized in that the coupling fixed with the rotary joint (17) and a fixed bolt. The grinding nozzle (6) detachably fastened to the flange (5) forms a wedge-shaped bite inserting groove (27) at an inner circumference, and the bite inserting groove (30) has a fixed groove (30) on its rear surface. And inserting and fixing the cemented carbide byte (28), and screwing and fixing the cemented carbide byte with a set screw (29).