KR100655117B1 - Pug blade of brick molding machine - Google Patents

Abstract

A raw material mixing pug blade of a pug mill is provided to exchange only an upper split blade worn out by directly rubbing against raw materials by dividing the pug blades into upper and lower split blades. The pug blades(3) are assembled on plural support shafts(2) detachably installed in an independent structure at a rotary shaft(14) rotating in a mixing part of a pug mill and separated at regular intervals in a spiral direction, by combining bolts(25) and nuts. The pug blade is divided into upper and lower split blades(3a,3b) assembled to the support shaft according to an assembly order. The upper split blade has a bolt assembly hole(31) passing only a screw unit while supporting a head unit of an assembly bolt(4). The lower split blade has a nut(32) formed on the upside and thread-assembled with the screw unit of the assembly bolt passing through the bolt assembly hole of the upper split blade. The upper and lower split blades are combined or separated by the assembly bolt.

Description

Pug blade of brick molding machine

1 is an installation state of the raw material kneading pug braid for explaining the present invention.

Figure 2 is a cross-sectional view of the pug braid assembled state of one embodiment of the present invention.

Figure 3 is an exploded perspective view of the pug braid of the same embodiment.

Figure 4 is a cross-sectional view of the pug braid assembled state of another embodiment of the present invention.

5 and 6 are assembled state of the pug braid of the prior art.

※ Explanation of code for main part of drawing

1: basic body 10: kneading unit

11: vacuum part 12: extrusion part

13: discharge mouse 14: rotation axis

2: support shaft 21,22: upper and lower

23: expansion tube 24: pressure bolt

25: fastening bolt 3: pug braid

3a, 3b: upper and lower split blade 31: bolt assembly

32: Nut 33: When

34: upper surface 35, 36: bearing

4: Assembled Bolt

The present invention relates to a pug blade (Pug blade) to be transported while kneading raw materials such as clay or loess is mounted to the kneading portion of the refining machine for manufacturing bricks and sidewalk blocks, and more specifically, wear a pug blade It is a means of dividing and forming into plural parts by dividing into fast-moving part and slow-wearing part and replacing only the part that progressed quickly while kneading raw materials of products such as bricks with a refining machine. It relates to a split prefabricated pug braid that can be used to reduce the replacement cost of the pug braid while continuing to use it.

In general, the scouring machine for manufacturing bricks and sidewalk blocks is a kneading unit for mixing and feeding the raw materials, a vacuum unit for extracting air from the kneading raw material discharged from the kneading unit, and a forced raw material for conveying the coarse dough material. An extrusion part and a discharge mouse which discharges the dough raw material discharged | emitted from an extrusion part with an extrusion molding mold are provided.

Usually, the kneading unit of the refining machine is equipped with a plurality of pug blades for mixing and kneading the raw material on the rotating shaft, wherein the pug blades are assembled in a spiral direction on the rotating shaft of the kneading unit, respectively, in an assembled state in an independent structure. The pug braids are installed at an angle to the direction of rotation of the rotary shaft because the pug braids must be pushed toward the discharge end as well as to knead the raw material when the rotary shaft rotates.

Conventionally, there are several types of pug braids used in the kneading unit of a refining machine, and among them, those shown in FIGS. 5 and 6 are used as structural features.

The pug braid 200 illustrated in FIG. 5 has a structure in which the lower portion 212 is assembled to the upper portion 211 of the support shaft 210 fixed to the assembly hole 110 of the rotation shaft 100 by a predetermined depth. The front end 201 of the pug braid 200 is formed to protrude in the shape of an ax blade, the rear end 202 is formed to a thick thickness, the upper end 203 is at the upper side of the front end 201 It is formed in the shape which protrudes toward the front.

The support shaft 210 supports the bolt 205 at the upper side of the rear end 202 in a state where the upper end 211 of the support shaft 210 is inserted into the rear end 202 through the assembly hole 204 formed to penetrate up and down. By screwing into a female threaded hole formed in the upper portion 211 of the upper portion of the pug braid 200 is configured to couple to the support shaft 210.

And, the pug braid 300 shown in FIG. 6 is a screw of the bolt and nut to the upper portion 311 of the support shaft 310, the lower portion 312 is fitted into a fixed depth to the assembly hole 110 of the rotary shaft 100 Attached by fastening, the front end 301 of the pug braid 300 is formed to protrude in the shape of an ax blade and has a thickness gradually thickening toward the rear end 302, the top 303 is shear It is formed in a shape protruding sharply toward the front in the state extending from the 301, the plurality of bolts fixedly attached to the rear end 302 through the upper portion 311 of the support shaft 310 Is fastened by nuts.

However, since the pug blades 200 and 300 of the prior art as described above are all formed in a single body, the upper portions of the shears 201 and 301 which exhibit the most friction action with the raw materials during the kneading of the raw materials in the kneading part of the refining machine. A phenomenon in which the upper ends 203 and 303 wear out quickly (see hatched portions in FIGS. 5 and 6) appears, and the kneading operation of the raw materials is not well performed when the upper portions 203 and 303 are severely worn. Since the transfer operation is also not performed properly, if the upper part and the upper part of the front end of the pug braid (200,300) is badly worn, the lower part of the front end should be replaced, although the entire pug braid should be replaced, but the pug braid is replaced. This is a costly problem and can also replace worn pug blades. If you want to replace the pug braid only to stop the refining machine, collect all the raw material in the kneading unit and then disassemble the support shafts 210 and 310 assembled to the rotary shaft 100. At this time, it takes a lot of time to remove the support shaft from the rotary shaft. The biggest problem has been pointed out that the productivity of the product is reduced due to the excessive labor and manpower, and such problems are directly reflected in the production cost of brick and sidewalk block products, which increases the production cost of bricks and other products. This will have a big impact on the price competitiveness of brick and sidewalk blocks.

The present invention has been proposed in order to solve the problems described in the prior art as described above, the pug braid is divided into parts that wear well and parts that are not well formed by forming and then assembled by means of assembling the reinforcing machine When each pug braid mounted on the rotating shaft of the kneading unit to knead the raw materials is so badly worn that the kneading operation and the feeding operation of the raw materials are not performed smoothly, the entire pug braid is not replaced and the unweared parts are left as they are. Reduces the cost of replacing the pug braid by allowing only parts to be replaced, and also reduces the manpower and time required to replace worn parts of the pug braid, thereby improving the productivity of bricks and sidewalk blocks, thus increasing the price competitiveness of the product. To increase It was invented for the purpose.

The present invention as a means for achieving the above object,

Each structure is independent on the rotating shaft that rotates inside the kneading unit of the refining machine, and is assembled by fastening bolts and nuts on the upper portions of each of the plurality of supporting shafts detachably installed at a predetermined interval in the spiral direction. In the pug braid installed in,

The pug braid is divided into upper and lower parts and is formed of upper and lower divided blades assembled in the order of assembling on the upper part of the support shaft. The upper divided blade has a bolt assembly hole penetrating only a screw part while the head of the assembly bolt is supported. It is formed, the upper surface of the lower divided blade as a structure to form a nut for screwing the screw portion of the assembly bolt penetrating the upper divided blade, the upper and lower divided blades can be coupled and separated by the assembly bolt. It is characterized by being configured to.

In addition, each of the lower surface of the upper divided blade and the upper surface of the lower divided blade is characterized in that the concave and protruding so that the cross-section is formed in an inclined surface like a pyramid shape so as to be assembled in engagement with each other.

In addition, each of the bolt assembly hole and the nut formed in each of the upper and lower divided blades is formed to be inclined so that the upper side is rearward, characterized in that the assembly bolt is configured to combine the upper and lower divided blades in an inclined state.

Each embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an installation state diagram of a pug braid for mixing raw materials for explaining the present invention, Figure 2 is a cross-sectional view of the pug braid assembled state of one embodiment of the present invention, Figure 3 is an exploded perspective view of the pug braid of the same embodiment, Figure 4 Figure shows a pug braid assembly cross-sectional view of another embodiment of the present invention.

In the drawing, reference numeral 1 denotes a refining main body, and on one side of the refining main body 1, a kneading part 10 for conveying while mixing raw materials such as clay or loess, and a kneading raw material conveyed from the kneading part. A vacuum unit 11 for extracting air and an extrusion unit 12 for forcibly transferring the kneading raw material through the vacuum unit are kneaded, and an ejection mouse equipped with an extrusion molding die is provided at the discharge end of the extrusion unit. (13) is assembled and installed.

Inside the kneading section 10 is provided with a rotating shaft 14 for receiving a rotational force from the drive unit installed in the drill body (1) for a rotational operation, the rotation shaft 14 at a predetermined interval toward the spiral direction The pug blades 3 are detachably attached to each of the plurality of support shafts 2 fixedly installed, and the pug blades 3 are kneading operation of mixing raw materials as the rotating shaft 14 rotates. In addition, it is installed to be inclined at a predetermined angle with respect to the axial direction of the rotary shaft 14 so as to simultaneously perform the conveying operation to push toward the vacuum portion (11).

The pug braid (3) is produced by being separated into a portion that is not in contact with the rapid progress in contact with the strong material to be kneaded. That is, the pug braid 3 is divided into an upper divided braid 3a and a lower divided braid 3b so that the pug braid 3 can be combined and separated by the assembly bolt 4.

The upper divided blade (3a) is formed with a bolt assembly hole 31 through which the assembly bolt 4 penetrates from the upper side to the lower side, the upper portion of the bolt assembly hole 31 is the head of the assembly bolt (4) ( 41 is formed wide so that it can be supported, the lower portion is formed narrow so that the threaded portion 42 of the assembly bolt (4) can pass.

The lower split blade 3b is formed with a nut 32 through which an assembly bolt 4 penetrating the bolt assembly hole 31 of the upper split blade 3a is screwed, and the nut 32 has a lower portion. Although it can be formed in a structure that forms a female screw on the upper surface of the divided blade (3b), in the present invention is shown to be formed of a structure in which a metal nut 32 of a material different from the lower divided blade (3b) is embedded. This is because the pug braid 3 itself is made of special steel having high strength (for example, high chrome steel), so that the female screw cannot be easily machined, and the nut 32 made of ordinary steel is pre-buried in the mold. In the embodiment of the present invention, the nut 32 is formed in the state where the nut 32 is embedded in the upper surface of the lower divided blade 3b.

In addition, the present invention includes a structure for screw-assembling vertically the assembly bolt (4) for coupling the upper and lower divided blades (3a) (3b) according to claim 1, claim 3 claims As shown in the embodiment shown in Figure 4, the assembly bolt 4 is inclined so that its head portion 41 faces the back of the pug braid 2 on the side of the support shaft 2 and the threaded portion 42 faces forward. In addition, the bolt assembly hole 31 and the nut 32 are formed to be inclined so that the lower divided blades 3a and 3b may be coupled to each other, which is formed in the upper divided blade 3a. This is because forming the slant backwards rather than vertically can reduce the frictional resistance with the raw material during the kneading operation, and can provide the advantage that the raw material is less filled with the bolt assembly hole. Therefore, it is preferable to form the bolt assembly hole 31 and the nut 32 to be inclined so that the assembly bolt 4 can be screwed inclined toward the rear.

In addition, the lower surface 33 of the upper divided blade 3a and the upper surface 34 of the lower divided blade 3b are configured to be coupled by the assembling bolts 4 in an overlapped state.

That is, the upper surface 34 of the lower divided blade (3b) is inclined surface protrudes upward, like the pyramid shape before, after, left and right with respect to the nut 32 as shown in FIG. The lower surface of the upper divided blade 3a is formed as an inclined surface concaved in all directions toward the lower end of the bolt assembly hole 31 in a symmetrical state engaged with the upper surface 34.

"자형으로 절곡 형성되어 회전축(14)에서 돌출되는 상부(21)와 회전축(14)의 조립공(14a)에 끼워진 상태로 고정되는 하부(22)로 구분되며, 상기한 하부(22)의 단부에는 하향으로 갈수록 외경이 점차로 작아지는 테이퍼부에 일측이 절개된 확개관(23)이 일부만 끼워진 상태로 가조립된 상태에서 하부(22)의 단부에 형성된 암나사공에 나사체결되는 가압볼트(24)에 의해 테이퍼부에 가조립된 확개관(23)이 테이퍼부에서 외경이 점차로 커지는 상측으로 이동됨에 벌어지면서 조립공(14a) 내면에 밀착되므로서 상기한 하부(22)는 회전축(14)의 조립공(14a)에 견고하고 고정 설치되는 것이며, 상기 지지축(2)의 상부(21)는 양측은 평삭되어 단면상으로 형성되어 있고, 또한 상기한 상부(21)의 상단에는 퍼그브레이드(3)를 지지축(2)에 결합시키기 위한 체결볼트(25)가 나사조립되는 암나사공이 형성되어 있다.On the other hand, the support shaft 2 is approximately "

"Bented in a shape and divided into an upper portion 21 protruding from the rotary shaft 14 and a lower portion 22 fixed in a fitted state in the assembly hole 14a of the rotary shaft 14, the end of the lower portion 22 The pressurizing bolt 24 is screwed into the female screw hole formed at the end of the lower portion 22 in the state in which the extension pipe 23 in which one side is cut in the tapered portion gradually decreases toward the downward portion is temporarily assembled in a state where only a part of the extension pipe 23 is inserted. The lower part 22 is attached to the assembly hole 14a of the rotary shaft 14 as the expansion pipe 23 temporarily assembled in the taper part is brought into close contact with the inner surface of the assembly hole 14a while being moved upward from the taper part. It is firmly and fixedly installed, and the upper portion 21 of the support shaft 2 is flattened on both sides and is formed in a cross-section. Fastening bolt (25) for screwing in Internally threaded holes are formed.

The divided upper and lower divided blades 3a and 3b of the pug braid 3 are installed on the support shaft 2 as shown in FIGS. 2 and 4, and the example of FIG. 2 is divided into upper and lower parts. An embodiment in which the bearing holes 35 and 36 into which the upper portion 21 of the support shaft 2 is fitted is formed at the rear end of each of the braids 3a and 3b. In this embodiment, the upper and lower divided blades ( 3a) (3b) is coupled by the assembly bolt (4) and is also attached to the support shaft (2) by the fastening bolt 25, so the combined state of the upper and lower divided blades (3a) (3b) is firm On the other hand, when the upper split blade 3a is badly worn and needs to be replaced, the above assembled bolt 4 and the fastening bolt 25 must be unscrewed so that the upper split blade 3a can be removed from the lower split blade 3b. Since it can be separated, there is a disadvantage in the replacement of the upper divided blade (3a) somewhat. 3 is an embodiment in which the bearing hole 36 is formed only in the lower divided blade 3b and the bearing hole is not in the upper divided blade 3a. In this embodiment, the upper divided blade 3a is assembled with a bolt ( Since the structure is coupled to the lower divided blade 3b only by 4), the coupling force of the upper and lower divided blades 3a and 3b tends to be somewhat lower than in the above-described embodiment of FIG. When you want to replace the assembly bolt (4) provides the advantage of being able to replace only by means of screw loosening. Therefore, the user may improve the product productivity of bricks and the like by selecting and using the pug braids 2 of the embodiment shown in FIGS. 2 and 4 according to the characteristics of the raw material mixing operation when manufacturing bricks and the like.

According to the present invention as described above, since the pug braids assembled in a spiral shape on the rotating shaft installed in the kneading portion of the refining machine are divided into upper and lower divided braids, friction with the raw materials during mixing and conveying raw materials such as clay or loess. When the upper split braid, which is concentrated in action, is so badly worn that the operation of kneading and conveying the raw materials does not proceed smoothly, the pug braid can be replaced only by splitting the upper split braid instead of replacing the entire pug braid as in the prior art. It not only reduces the time and manpower required for the replacement, but also reduces the replacement cost of the pug braid, which is effective for those who manufacture bricks and sidewalk blocks that are made of pottery. In addition to saving money It reduces the production cost of the product and provides the advantage to help increase the price competitiveness.

Claims (3)

Each structure is independent on the rotating shaft that rotates inside the kneading unit of the refining machine, and is assembled by fastening bolts and nuts on the upper portions of each of the plurality of supporting shafts detachably installed at a predetermined interval in the spiral direction. In the pug braid installed in, The pug braid is divided into upper and lower parts and is formed of upper and lower divided blades assembled on the support shaft in the assembling order. The upper divided blade is formed with a bolt assembly hole penetrating only a screw part while the head of the assembly bolt is supported. The upper surface of the lower divided braid is a structure in which a nut for screwing the threaded portion of the assembling bolt through the bolt assembly hole of the upper divided braid is formed, and the upper and lower divided blades are coupled and assembled by the assembling bolt. The pug braid for kneading the raw material of the reinforcing machine, characterized in that configured to be separated. The method of claim 1, The lower surface of the upper divided braid and the upper surface of the lower divided braid are kneaded and protruded so that the cross-sections are formed in an inclined surface in all directions such as pyramid shapes so that they can be assembled in engagement with each other. Pug braid. The method according to claim 1 or 2, Each of the bolt assembly holes and the nuts formed on the lower surface of the upper divided blade and the upper surface of the upper divided blade is formed so that their upper sides are inclined rearward, and the assembling bolts screwed to the nut through the bolt assembly holes are inclined backward. Pug braid for kneading the raw material of the reinforcing machine, characterized in that configured to screw the upper and lower divided blades in a state.

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