KR200326317Y1 - shatter apparatus for styrofoam - Google Patents

Abstract

The present invention is a styrofoam crushing apparatus for pulverizing waste styrofoam, the main body 102 is provided with the inlet 104 and the outlet 106 of the lower end; A fixing bar 110 crossing the inside of the main body 102; A plurality of fixed cutting blades 112 branched to the outer surface of the fixed bar 110; A pair of first and second shafts 120a and 120b arranged side by side with the fixing bar 110 therebetween; A motor (M) for slowly rotating the first and second shafts (120a, 120b) in the longitudinal direction; A plurality of first and second rotary cutting edges 130a and 130b fixed to the first and second shafts 120a and 120b, respectively, and rotated to intersect with the plurality of fixed cutting edges; It provides a styrofoam crushing device comprising a screen 140 of the mesh structure is installed between the first and second rotary cutting blades (130a, 130b) and the outlet 106.

Description

Styrofoam crusher {shatter apparatus for styrofoam}

The present invention relates to a styrofoam crusher, and more particularly to a styrofoam crusher for crushing the waste styrofoam lumps for recycling or disposal.

Expanded Poly-Styrene, commonly referred to as styrofoam or styropor, is a packaging or building material, buoyant, decorative, insulating or disposable container. It is widely used throughout the industry.

This is made by infusing polystyrene resin with hydrocarbon gas such as pentane or butane and then inflating and foaming it. About 98% of the volume is made of air. It has the advantages of excellent water resistance, resilience, cushioning, sound insulation and insulation and processability.

However, most of the styrofoam products are disposable that cannot be recycled, so they are usually disposed of after being used. Since the quantity and volume are enormous, it takes a lot of manpower and expense to collect and transport them. It causes pollution.

The styrofoam is crushed finely to minimize the volume and then discarded or the crushed styrofoam granules are mixed with mortar and recycled as building materials. It is a grinding device.

1 and 2 are front and side cross-sectional views, respectively, of a typical styrofoam grinder, into a main body 2 and a main body 2 having a housing having an inlet 4 at an upper end and an outlet 6 at a lower end thereof. It comprises a grinding means (8) installed to crush the styrofoam through the rotational force of the motor (M).

In this case, the crushing means 8 includes a shaft 10 and a plurality of rotary cutters 12 fixed thereto, which are rotated about a central axis in the longitudinal direction by the motor M and intersect the inside of the main body 2, in particular, The rotary cutter 12 is provided with a pair of parallel discs 14 each having a center penetrated through the shaft 10, and a hinge 15 or the like, with the opposite side edge portions between the pair of discs 14 facing each other. And a pair of cutting edges 16 securely coupled.

And the screen 18 of the semi-circular tube shape which consists of a mesh structure and traverses the inside of the main body 2 to the lower end of the rotary cutter 12 is installed.

Therefore, as the shaft 10 and the plurality of rotary cutters 12 rotate at high speed by the driving of the motor M, the cutting edges 16 are unfolded out of the pair of discs 14 by the centrifugal force, and the inlet 4 Strongly hit the waste styrofoam lumps injected into the body (2) through.

As a result, when the waste styrofoam mass is pulverized, small particles exit the screen 18 and are discharged to the discharge port 6, while large particles catch the screen 18 and are continuously hit by the cutting edge 16. Through this process, the waste styrofoam lump is pulverized into small particles of styrofoam granules and discharged to the outlet 6.

However, the general styrofoam pulverizing device exhibits some problems. In order to give a strong impact to the waste styrofoam mass, each cutting edge 16 must be kept fully extended, so that the motor M and the corresponding centrifugal force are generated. The shaft 10 and the rotary cutter 12 rotate at high speed.

However, such high-speed rotation imposes a strain on the device and shortens the life. In particular, friction heat is generated in the shaft 10, the rotary cutter 12, or the hinge 15, and the styrofoam granules are frequently pressed against these heat generating sites. Is observed. In this case, it is difficult to work smoothly by hindering the movement of the shaft 10, the rotary cutter 12, or the hinge 15, and in particular, when tangled with the screen 18, the styrofoam particles are not discharged. impossible.

In addition, the above-mentioned general styrofoam crushing device is a method of hitting the styrofoam lumps floating in the air with a cutting edge (16) strongly, so the crushed styrofoam particle size is irregular and often bad, these irregular styrofoam particles are sandwiched in the screen (18) It is often damaged, which takes a long time to repair and greatly reduces the grinding efficiency.

The present invention has been devised to solve the above problems, by minimizing the frictional heat generated during the process to effectively prevent the melting and recombination of the styrofoam grains, and in particular, the size of the crushed styrofoam grains can be made constant It is an object of the present invention to provide a styrofoam grinder that can greatly improve the.

1 is a front sectional view of a typical styrofoam crusher.

Figure 2 is a side cross-sectional view of a typical styrofoam crusher.

Figure 3 is a front sectional view of the styrofoam crushing apparatus according to the present invention.

Figure 4 is a side cross-sectional view of the styrofoam crushing apparatus according to the present invention.

Figure 5 is a partial perspective view of the styrofoam crushing means included in the styrofoam crushing apparatus according to the present invention.

<Description of the symbols for the main parts of the drawings>

102: main body 104: inlet

106: outlet 108: grinding means

110: fixed bar 112: fixed cutting blade

120a, 120b: first and second shaft

130a, 130b: first and second rotary cutting blades

140: screen 142: jamming

The present invention is a styrofoam crushing apparatus for pulverizing waste styrofoam in order to achieve the above object, the main body is provided with the inlet and the outlet of the upper end; A fixed bar crossing the inside of the main body; A plurality of fixed cutting blades branched to an outer surface of the fixed bar; A pair of first and second shafts arranged side by side with the fixing bar interposed therebetween; A motor for slowly rotating the first and second shafts in the longitudinal direction; A plurality of first and second rotary cutting blades fixed to the first and second shafts and rotated to intersect with the plurality of fixed cutting blades; It provides a styrofoam crushing apparatus comprising a screen of the mesh tissue is installed between the first and second rotary cutting blade and the outlet.

In this case, the first and second rotary cutting blades are arranged in a plurality of radially extending along the outer surface of the shaft, respectively, and are gently bent in the rotational direction of the corresponding shaft to rotate while maintaining a distance of about 1 to 2 mm. It features.

In addition, the fixing bar is located at the lower end of the first and second shaft, the screen is characterized in that it further comprises a plurality of locking projections starting from both sides of the fixing bar connected to the inlet, protruding toward the inside Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

3 and 4 are front and side cross-sectional views, respectively, of the styrofoam crushing apparatus according to the present invention, which is installed into the main body 102 and the inside thereof to crush the styrofoam through the rotational force of the motor (M). In particular, the motor M is characterized by rotating at a low speed.

At this time, the main body 102 serves as a housing for preventing the scattering of the styrofoam particles and supporting the grinding means 108, through the inlet 104 of the upper end into which the waste styrofoam mass to be crushed and the grinding means 108 installed therein. A discharge port 106 through which small crushed styrofoam particles are discharged is provided at the lower end.

In addition, the grinding means 108 is connected to the fixed bar 110 and the plurality of fixed cutting blades 112 protruding along the outer surface of the main body 102, the motor (M) to rotate in the longitudinal direction axis And at least one shaft arranged side by side with the fixing bar 110.

5 is a partial perspective view showing the styrofoam grinding means 108 included in the styrofoam grinding device according to the present invention, which will be described with reference to FIGS. 3 and 4.

The at least one or more shafts may be arranged in a circle at least three or more around the fixed bar 110 or the parallel to the fixed bar 110 according to the purpose, preferably fixed bar 110 as shown ) May be a pair of first and second shafts 120a and 120b arranged side by side so as to maintain the same distance from each other.

In addition, a plurality of first and second rotary cutting blades 130a protruding from the first and second shafts 120a and 120b to have rotation paths intersected with the fixed cutting blade 112 of the fixed bar 110, respectively. 130b), which may in particular be arranged radially along the outer surfaces of the corresponding shafts 120a and 120b, the number of which is suitable for two to four.

In addition, the styrofoam crushing apparatus according to the present invention extends the inlet 104 of the main body 102 to the inside, and the screen 140 of the mesh structure surrounding the first and second rotary cutting blades 130a and 130b is installed. This allows the small crushed styrofoam particle size to pass through and discharged to the outlet 106 at the bottom without interfering with the rotation of the first and second rotary cutting blades 130a and 130b, and the larger one is pulverized to a smaller size. Be sure to

To this end, the screen 140 may be shaped to be connected to the inlet 104 by wrapping the first and second rotary cutting edges 130a and 130b from both sides of the fixing bar 110. And it maintains the interval of about 1 to 2mm and the rotation radius of the second rotary cutting blade (130a, 130b). In particular, a plurality of locking protrusions 142 protruding toward the inner surface of the screen 140 may be formed at a predetermined position, which will be described later.

For reference, although not separately indicated in the drawings, a power transmission member such as a belt pulley for distributing the rotational force of the motor M to the first and second shafts 120a and 120b may be used. It will be self-evident.

Referring to the operation of the styrofoam crushing apparatus according to the present invention having the above configuration, first the waste styrofoam lump is introduced through the inlet 104 and the motor (M) is driven to drive the first and second shafts (120a, 120b) and these Rotating the first and second rotary cutting blades (130a, 130b) coupled to each.

At this time, the first and second rotary cutting blades (130a, 130b) are gently bent in the direction of rotation of the shaft (120a, 120b), respectively, to prevent the back-discharge phenomenon of the styrofoam grains into the inlet 104 of the main body ( 102, and the inner styrofoam lump is located since the fixed bar 110 and a plurality of fixed cutting edges 112 protruding from the outer surface of the first and second shafts 120a and 120b are located at the centers of the lower ends. It is caught by a plurality of fixed cutting edge (112).

Subsequently, the first and second rotary cutting blades 130a and 130b are rotated to cross the plurality of fixed cutting blades 112 to crush the waste snirofoam lumps. ) Is discharged to the discharge port 106, while the large particles of styrorom grains are filtered by the screen 140.

In addition, the large particles of styrofoam grains are rotated in the screen 140 by the rotation of the first and second shafts 120a and 120b and the first and second rotary cutting edges 130a and 130b branched from their respective outer surfaces. It is pulled in the direction of the inlet 104, wherein the first and second rotary cutting blades (130a, 130b) and the screen 140 maintains a distance of about 1 to 2mm, so that some styrofoam is not friction with the screen 140 It is crushed and discharged to the discharge port 106 by it.

To this end, one end of the first and second rotary cutting blades (130a, 130b) is preferably formed to extend the contact area with the screen 140 by forming an extended portion 132a rounded, the screen 140 predetermined A plurality of locking projections 142 are crushed at the position to maximize the friction force to more effectively crush the styrofoam. In this case, the locking protrusion 142 may be alternately arranged with the first and second rotary cutting blades 130a and 130b.

The above-described process is repeated continuously by the driving of the motor M, and eventually, the large waste styrofoam lump is crushed into small particles of styrofoam and discharged to the discharge hole 106.

Styrofoam grinding device according to the present invention is to control the grinding means such as the first and second shafts and the first and second rotary cutting blades coupled to each of them using a low-speed rotating motor, it is possible to minimize the frictional heat The sticking phenomenon due to the melting of the styrofoam grains during the grinding process can be prevented.

Accordingly, the smooth operation of the grinding means can be maintained, and in particular, styrofoam grains can be prevented from sticking to the screen, thereby improving work yield and extending the life of the styrofoam grinder.

In addition, the styrofoam crushing apparatus according to the present invention is primarily by grinding the styrofoam formed in the air bar bar crushed waste strip foam through a fixed cutting blade fixed to the position and the first and second rotary cutting blades rotated to cross Unlike the conventional method of crushing, the styrofoam is stably supported and supported by the fixed cutting blade, and then the grinding method is adopted as the first and second rotary cutting blades.

Therefore, it is possible to reliably grind even when using a motor that rotates at a low speed.

In particular, the first and second rotary cutting blades according to the present invention have the advantage of being able to crush the styrofoam secondary to the screen to prevent the blockage of the screen and grind into styrofoam grains of a certain size.

In addition, the screen is provided with a locking projection to maximize the friction force, so that a more reliable grinding result can be obtained. In particular, each rotary cutting blade is bent gently in the rotational direction of the shaft to prevent the back discharge of the styrofoam grains into the inlet. There is an advantage that faster styrofoam grinding is possible.

In addition, since the screen according to the present invention maintains the shape surrounding the first and second rotary cutting blades, the area is large, and thus, a larger amount of styrofoam grains can be filtered out per unit time, and a faster and more reliable grinding is possible.

Claims (3)

Styrofoam crusher for grinding waste styrofoam, A main body 102 provided with an upper inlet 104 and a lower outlet 106; A fixing bar 110 crossing the inside of the main body 102; A plurality of fixed cutting blades 112 branched to the outer surface of the fixed bar 110; A pair of first and second shafts 120a and 120b arranged side by side with the fixing bar 110 therebetween; A motor (M) for slowly rotating the first and second shafts (120a, 120b) in the longitudinal direction; A plurality of first and second rotary cutting edges 130a and 130b fixed to the first and second shafts 120a and 120b, respectively, and rotated to cross the plurality of fixed cutting edges 112; Styrofoam grinding device, characterized in that it comprises a screen 140 of the mesh structure is installed between the first and second rotary cutting blades (130a, 130b) and the outlet (106). The method of claim 1, The first and second rotary cutting edges (130a, 130b) are each arranged radially along the outer surface of the shaft (120a, 120b), respectively, gently bent in the rotational direction of the shaft (120a, 120b), respectively Styrofoam crusher, characterized in that the screen 140 is rotated while maintaining a distance of about 1 to 2mm. The method according to claim 1 or 2, wherein The fixing bar 110 is located at the lower end of the first and second shafts (120a, 120b), Styrofoam crushing device, characterized in that the screen 140 further includes a plurality of engaging projections (142) starting from both sides of the fixing bar (110) and connected to the inlet (104), protruding toward the inside.