KR20030011959A - blowing-resin compressor - Google Patents

Abstract

PURPOSE: An expanded resin compressing machine which is efficiently popularized by effectively reducing volume of waste styrofoam and compressing styrofoam in the state that styrofoam is easily processed is provided. CONSTITUTION: The expanded resin compressing machine comprises a crushing unit(100) comprising an injection port(110) which is installed at the upper side of the crushing unit(100) so that waste resin is injected into the injection port(110); a plurality of crushing rollers(120) along all over the outer circumferential surface of which rotational saw teeth are formed to move the waste resin to the lower side as crushing the injected waste resin; and a discharge port(130) which is installed at the lower side of the crushing unit(100) to discharge the crushed resin; and an injection unit(200) comprising an inlet(210) into which the crushed resin discharged from the crushing unit(100) is flown, a cylinder shaped casing(220) which is a transfer way of the crushed resin flown in through the inlet(210), and on the front of which a heat melting means(250) is mounted, a screw(230) which is inserted into the casing(220), and on the outer circumferential surface of which a screw airfoil member is formed and the crushed resin is transferred to the front part by rotation of the screw airfoil member, and a nozzle(240) which is coupled to the front side of the casing(220), and on which an extrusion hole(241) for extruding molten resin is formed.

Description

Blowing-resin compressor

The present invention relates to a foamed resin reducer for forming waste styrofoam in an easily recycled state, and more particularly, to a foamed resin reducer for grinding and extruding waste resin by passing through a grinding roller and a screw. .

Waste plastic does not decompose by its natural capacity, so it does not decay even when it is landfilled, and complete combustion is difficult during incineration. In addition, since the residues of heavy metals remain after landfilling or incineration, secondary environmental pollution is caused, and recycling is most effective.

Styrofoam is a foamed product inflated with steam after injecting pentane or butane into polystyrene resin, which is one of the plastic raw materials, and it is white and light and has excellent water resistance, insulation, soundproofing, and buffering properties. Widely used as building materials.

Since it has a thermoplastic and becomes a fluid when high heat is applied, it can be efficiently processed and recycled by synthetic wood or lightweight concrete if it is extruded. By using pentane gas as a blowing agent, no harmful gas is generated even in the process of application. However, the disposal method of the waste styrofoam is generally not available because it is being neglected.

A multi-stage compression type styrofoam reducer of Patent Registration No. 0145102 will be briefly described as a prior art for reducing resin for recycling waste resins. Figure 1 shows a front cross-sectional view of the multi-stage compression type styrofoam container.

The multi-stage compression type styrofoam reducer is a grinder 10 for blowing the styrofoam injected through the hopper 21, a screw shaft 11 for transferring the crushed styrofoam to one side, of the screw shaft 11 Compression cylinder 12, which compresses the collected styrofoam several times with a piston rod disposed at the end and reciprocating up and down, and is arranged in the horizontal direction of the bottom of the compression cylinder 12, and the first compressed styrofoam secondary Compression transfer cylinder 13 to push to one side while compressing, the area of the outlet is smaller than the inlet, it is composed of a stagnation chamber 14 to guide the progress of the secondary compressed styrofoam and discharge after tertiary compression at the outlet side have.

Since the multi-stage compression type styrofoam reducer is not strong in the crusher structure, it is difficult to grind styrofoam having a volume larger than the size corresponding to the fixed blade, so that a process for distinguishing the size of the styrofoam should be provided separately, and the size of the crushed styrofoam There is also a problem that is uneven.

In addition, to reduce the volume by compressing it, but a separate compression cylinder has to be installed, there is a problem that it is not economically efficient to spread because it is less economical and the effect of reducing the volume.

Therefore, an object of the present invention devised to solve the above problems is to provide a foamed resin container having a structure that is generally effective to spread by extruding the volume of waste styrofoam effectively and extruding it in an easy-to-process state.

1-a front sectional view of a styrofoam reducer of the multistage compression method according to the prior art

Figure 2-front sectional view of the foamed resin container according to the present invention

3-perspective view of a foamed resin container according to the present invention

4-exploded perspective view of the foamed resin container according to the present invention

<Description of Major Symbols Used in Drawings>

100: grinder 110: inlet

120: grinding roller 121: primary grinding roller

122: secondary grinding roller 123: third grinding roller

130: outlet 140: guide slope

141: preventive plate 200: extrusion device

210: inlet 220: casing

221: exhaust hole 230: screw

240 nozzle 241 outflow hole

250: heat melting means 300: transfer path

The present invention for achieving the object as described above, the inlet 110, the waste resin is introduced into the upper side, a plurality of grinding rollers 120 to be moved to the bottom while grinding the input waste resin is formed by rotating the sawtooth outer peripheral surface, A pulverizing device (100) having a discharge port (130) for discharging the pulverized waste resin on the lower side; An inlet 210 through which the pulverized resin discharged from the crusher 100 is introduced, a cylindrical casing 220 having a transfer path of the pulverized resin introduced through the inlet 210, and equipped with a heat melting means in front; Screw 230 is inserted into the casing 220 and a screw blade is formed on the outer circumferential surface of the screw 230 to transfer the grinding resin to the front portion by rotation, the outflow hole is coupled to the front of the casing 220 to flow out the hot melt resin ( The extruder 200 is provided with a nozzle 240 is formed 241; the foamed resin container consisting of the technical gist.

Here, the crushing apparatus 100 is formed with a guide inclined surface 140 from the inlet 110 to the crushing roller 120, the prevention plate 141 for returning the waste resin pieces bounced on the guide slope (140). The casing 220 has an exhaust hole penetrating an inner and an outer portion thereof, and the outlet hole has an outlet hole 241 having a smaller size than that of the inner diameter of the casing 220. It is preferably configured to extrude the transferred hot melt.

In addition, the grinding roller 120 is rotated by an external power, the first grinding roller 121 having a rotary saw tooth formed on the outer peripheral surface, a pair of left and right on the lower side of the primary grinding roller 121 and formed on the outer peripheral surface rotation Secondary grinding roller 122, the secondary grinding roller 122 having a rotational direction to feed the grinding teeth to the lower side by engaging the rotary saw teeth symmetrically formed so that the teeth are engaged with each other at intervals and the left and right grinding rollers It is composed of a tertiary grinding roller 123 is located on the lower side and the rotary teeth formed on the outer circumferential surface, the smaller the smaller the rotary teeth are formed as the grinding roller 120 located on the lower side so that the waste resin is crushed sequentially according to the capacity desirable.

The foamed resin reducer according to the present invention having the configuration as described above will be described in detail with reference to the following drawings. Figure 2 is a front sectional view of the foam resin container according to the present invention, Figure 3 shows a perspective view of the foam resin container according to the present invention.

As shown, the foamed resin container according to the present invention is largely composed of the inlet 110, the grinding roller 120, the outlet 130 and the inlet 210 and the inlet 210, casing 220, screw 230, the extrusion device 200 is composed of a nozzle 240.

The inlet 110 into which waste resin is introduced is formed from the uppermost portion of the crusher 100 to the lower portion of the primary milling roller 121, and a guide plate is installed below the inlet 110, thereby providing a primary milling roller 121. It is easy to put into the lower part and can be visually observed through the inlet 110, the crushing state of the waste resin injected can be prepared in case of emergency.

A guide inclined surface 140 extending from the inlet 110 to the tertiary grinding roller 123 is formed, and the secondary grinding roller 122 to the tertiary grinding roller 123 are also formed on the opposite side of the inlet 110. The guide inclined surface 140 is formed so that the pulverized particles that are separated from the path during the crushing process are slid on the inclined surface to form a space portion which decreases toward the lower side so as to be transferred downward in the tertiary grinding roller 123.

The left and right guide inclined surface 140 has the same slope as that of connecting the outer circumference of the left and right secondary grinding roller 122 and the outer circumference of the tertiary grinding roller 123 located in the lower center of the secondary grinding roller 122. It is installed in close proximity to the secondary grinding roller 122 and the third grinding roller 123, so that there is no grinding particles missing without passing through the third grinding roller 123.

In addition, a plurality of preventive plates 141 arranged in a vertical direction with the grinding roller shaft are formed at a position corresponding to the height between the primary grinding roller 121 and the secondary grinding roller 122 on the guide inclined surface 140. In the first and second milling, the pulverized particles bounced out of the inlet 110 are returned.

A motor providing a driving force capable of driving the grinding roller 120 is installed, and the three-stage grinding roller 120 is rotated by belts and gears connected to the motor. When one of the primary grinding roller 121 and the left and right secondary grinding roller 122 is rotated by a motor, the other one of the secondary grinding rollers 122 and the third grinding roller 123 rotate in conjunction with this.

The grinding rollers 120 are formed with rotary teeth at regular intervals over the entire length of the outer circumferential surface, thereby crushing the injected waste resin and moving downward. The primary grinding roller 121 is downward from the inlet 110 side. Rotating teeth in the direction is formed, and by having a rotational direction downward from the inlet 110 side, the waste resin to be injected is pulverized and transported downward.

The secondary grinding roller 122 is located on the lower side of the primary grinding roller 121 in a pair of left and right symmetrically formed so as to engage with each other at intervals, the grinding resin conveyed between the left and right grinding rollers 122 interval to the lower side Rotating teeth are formed in the conveying direction, and having a rotating direction downward between the left and right grinding rollers, the grinding resin transferred from the primary grinding roller 121 is secondly ground and transported downward.

The tertiary grinding roller 123 is located in the lower center of the pair of left and right secondary grinding rollers 122, and the rotary teeth in the direction downward from the inlet 110 opposite to the primary grinding roller 121 It is formed, and by having a rotation direction downward from the opposite side of the inlet 110 to crush the grinding resin and at the same time transported to the outlet 130 of the lower side.

The three-stage grinding roller 120 is installed close to each other, the primary grinding is made between the primary grinding roller 121 and the secondary grinding roller 122, the secondary grinding roller 122 and the third grinding roller ( 3rd grinding is performed between 123).

The three-stage grinding roller 120 disposed above and below is formed as the grinding roller 120 located at the lower side, and the smaller rotational teeth are formed densely, and the rotary teeth formed at regular intervals over the entire length of the outer peripheral surface have a narrower interval. Thus, the waste resin is pulverized sequentially according to the capacity.

The outlet 130 is located below the three-stage grinding roller 120, the third crushed resin is transferred along the guide inclined surface 140, the discharge port is provided with a blower, the crushed resin transferred to the outlet blower It is moved to the inlet 210 along the transfer path by the generated wind power.

Between the grinding device and the compression device, a pipe connecting the grinding device discharge port and the extrusion device inlet port 210 is installed to form a conveying path 300 through which the grinding resin is moved to the extrusion device.

Figure 4 shows an exploded perspective view of the foamed resin container according to the present invention.

The casing 220 has a cylindrical shape in which the inlet 210 is drilled on the upper side, and the grinding resin introduced through the inlet 210 is collected therein and the collected grinding resin is a screw installed inside the casing 220. At the same time as the rotation of the 230 is transferred to the front of the casing 220.

In addition, the casing 220 is formed with a through-hole 221 penetrating the inside and outside to discharge the gas generated during the compression due to the forward movement and rotation of the screw 230 to the outside of the extrusion device 200, the through-hole 221 The exhaust direction is adjusted by installing an exhaust pipe on the outer circumferential surface of the casing 220.

The front part of the casing 220 is wrapped around the outer circumferential surface of the heating element 250 containing nichrome or iron chromium as a main component, so that the heat melting is simultaneously performed when the grinding resin is compressed in the front of the casing 220.

The screw 230 inserted into the casing 220 and moving to the front part has a configuration in which a screw blade piece is formed on an outer circumferential surface of the screw shaft. The screw blade piece gradually decreases in diameter toward the front part side, and between the screw blade pieces. The distance is also formed to gradually decrease toward the front side, to improve the flow force to the front of the grinding resin collected in the casing 220.

The nozzle 240 is coupled to the front end of the casing 220 in the form of a disc, the outlet hole 241 of a smaller size than the inner diameter of the casing 220 is formed, the front portion of the casing 220 The waste resin which becomes a fluid is crimped out through the installed heat melting means 250.

Like the front part of the casing 220, the nozzle 240 is also equipped with a heating element mainly composed of nichrome or iron chromium, so that the heat generation to the pulverized resin also occurs in front of the casing 220, and prevents solidification of the fluid. As a result, the residues that have not been leaked may be closed or left inside the outlet hole 241 so as not to be fixed.

Therefore, the foamed resin put into the foamed resin container according to the present invention by the above configuration is crushed evenly through the three-stage grinding in the crushing apparatus 100, is transferred to the extrusion apparatus 200, the screw 230 to move forward And flow through the outlet hole 241 through the process of hot melt compression by the interaction of the hot melt means 250 and the nozzle 240 is flow discharged.

The foamed resin container according to the present invention having the above configuration effectively reduces the volume of waste styrofoam and at the same time extrudes in an easy-to-process state, and the structure of the device is simple and the volume occupied by the device is small and loaded on a transportation vehicle. Since it is easy to move to a place requiring paper treatment, it is easy to supply to the general public, and the size of the blades formed on the grinding roller is varied to large and small, so there is an advantage that the volume of the waste resin is not limited.

The present invention by the configuration as described above is not limited by the size and shape of the waste resin is introduced into the blade formed in the grinding roller is various, and effectively reduce the volume of waste styrofoam through three-stage grinding and hot melt compression process As a result, the structure of the device is simple and its volume occupies a small amount.

Claims (6)

Inlet 110, the waste resin is injected into the upper side, a rotary saw tooth is formed on the outer circumferential surface of the plurality of crushing roller 120 to be moved to the lower and crushed injected waste resin, discharge outlet 130 for discharging the crushed resin on the lower side A grinding apparatus 100 provided; Cylindrical casing in which the grinding resin discharged from the grinding device 100 is introduced into the inlet 210, the transfer path of the grinding resin introduced through the inlet 210 and the heat melting means 250 is mounted to the front ( 220), the screw 230 is inserted into the casing 220 and a screw blade is formed on the outer circumferential surface to transfer the grinding resin to the front part by rotation, and coupled to the front of the casing 220 so that the hot melt resin flows out. The extruder 200 is provided with a nozzle 240, the outlet hole 241 is formed; foaming resin container characterized in that consisting of. According to claim 1, wherein the grinding device 100, Guide inclined surface 140 from the inlet 110 to the grinding roller 120 is formed, foamed resin container characterized in that the prevention slope plate 141 is formed on the guide inclined surface 140 for returning the crushed particles. According to claim 1, wherein the grinding roller 120, Primary grinding roller 121 is formed with the rotary teeth in the downward direction from the inlet 110 side, located in a pair of left and right on the lower side of the primary grinding roller 121 and the lower side of the grinding resin conveyed between the left and right grinding roller intervals Rotating teeth formed in the direction to transfer to the secondary grinding roller 122 is symmetrically formed so as to engage with each other at intervals, consisting of a third grinding roller 123 located in the lower center of the secondary grinding roller 122 Foam plastic container characterized in that. The method of claim 1, wherein the casing 220, A through-hole 221 penetrating the inner and outer parts is formed foamed resin container characterized in that the exhaust pipe is coupled to the outer peripheral surface. The method of claim 1, wherein the nozzle 240, Outflow hole 241 having a relatively small size compared to the inner diameter of the casing 220 is formed to extrude the hot melt resin transferred to the front of the casing (220) foamed resin container. According to claim 3, wherein the three-stage grinding roller 120 is arranged up and down, The lower roller is located on the lower side of the grinding wheel is formed relatively denser than the smaller teeth so that the waste resin is sequentially pulverized according to the capacity.