KR20020030328A - a machine for grind plastic - Google Patents

Abstract

PURPOSE: A plastic pulverizer is provided to ensure the easy repair work of the pulverizing blades, to freely adjust a distance between the blades, and to prevent the phenomenon of overload of a driving motor during the pulverization of plastics. CONSTITUTION: The plastic pulverizer is comprised of a base(110) designed to be easily transported; a support plate(112) fixed on the base by using a fastener; a lower body(120) rotatably coupled to the support plate about a hinge(122) so as to be opened and closed; an upper body(130) rotatably coupled to the support plate about a hinge(131) so as to be opened and closed in corresponding to the lower body; and a rotating blade(150) and a fixed blade(160) installed between the upper body and the lower body to pulverize plastics.

Description

Plastic crusher {a machine for grind plastic}

The present invention relates to a pulverizer for pulverizing such that a bad injection (plastic) or separated plastics can be recycled as a raw material.

In general, when the production of the injection molded product is defective or when the end of the life of the injection product that was used and commercialized is discarded, it is collected and pulverized to be recycled as raw materials.

In the pulverizer for pulverizing the plastic, the hopper into which the unmolded plastic or the collected plastic is put is formed in the upper part of the pulverization part, and the pulverization part consisting of a rotary blade and a fixed blade to finely pulverize the plastic supplied from the hopper. And a screen for discharging only the pulverized plastic to a size that the pulverized plastic can be used as a raw material by the rotary blades and the fixed blade of the pulverizer is provided at the outlet, that is, the lower part of the pulverizer.

The type of the crusher is divided into a high speed crusher, a medium speed crusher, and a low speed crusher according to the plastic pulverization capacity, and the configuration has the above-described configuration regardless of the type of the pulverizer. Has the difference.

Looking at the conventional crusher to crush the plastic as described above are as follows.

(Example 1 of the conventional mill)

1 is a side view of a plastic crusher according to the prior art.

The plastic pulverizer of Figure 1 is provided with a caster 11 in the lower portion for easy transportation, and the base 10 is provided with a drive motor 12 for transmitting power to the rotary blade 15 of the pulverization portion on the upper side; ;

The upper body 14 having the hopper 13 to the base 10 is fixed by a fixing means, and both ends of the rotary blade 15 to the upper body 14 are bearing blocks (not shown). The fixed blade 17 is bolted to both sides so as to be fixed to the rotating surface of the rotary blade 15 at the same time as being fixed by the fixed blade 17 is close to the tip 16 of the rotary blade 15, the rotary blade ( 15 and a screen 19 which allows only the pulverized plastics pulverized by the fixed blades 17 to be discharged, with one end being opened and closed relative to the upper body 14. ) Is installed, and the other end is composed of a crushing portion that is to be regulated by the opening and closing bolt (14b) installed in the hinge (14a) on the upper body (14).

When the rotary blade 15 of the pulverization unit is rotated by the driving of the driving motor 12, the pulverizer configured as described above, the plastic introduced into the hopper 13 is introduced into the crushing unit by the rotary blade 15, and the rotary blade is rotated. It is crushed by the 15 and the fixed blade 17.

The plastic pulverized by the rotary blade 15 and the fixed blade 17 as described above is discharged through the hole 19a of the screen 19 installed in the lower body 18.

The plastic discharged through the hole 19a of the screen 19 is discharged only to be crushed into a size suitable for use as a raw material, and the large particles of plastic are again rotated by the rotary blade 15 and the fixed blade 17. It is pulverized again at and discharged.

When the plastic is pulverized using the pulverizer for crushing the plastic as described above, the plastic is divided and pulverized. In order to prevent color mixing of the pulverized plastic, to prevent the mixing of the collar when crushing the plastic with different colors. After replacing the screen 19 installed on the lower body 18 in a way for, the plastic grinding work of different colors.

When the screen 19 is replaced, when the nut 14c of the bolt 14a of the hinge 14a installed on the upper body 14 is loosened, when the nut 14c is flipped, the lower body 18 is opened. It is to be moved down as shown in Figure 1 around the hinge (18a) is to be able to easily replace the screen (19).

On the other hand, even when maintenance is required due to the wear of the rotary blade 15 and the fixed blade 17 is maintained in the state of lowering the lower body 18 as described above.

The grinder of Example 1 has the advantage that the screen can be easily replaced.

However, the above-mentioned grinder is, firstly, the fixed blade is installed under the upper surface of the division surface, and there is not only the inconvenience of having to work with the body tilted back during maintenance, and the working space is difficult due to the narrow working space. Many; Second, there is difficulty in adjusting the gap between the rotary blade and the fixed blade; Third, since the fixed blade is installed in a straight line with respect to the rotation center of the rotary blade, when the rotary blade of 4 degrees is used, the rotary blade is simultaneously cut to both fixed blades, causing overloading to the drive unit. Have; Fourth, there was a hassle to use a separate support mechanism because it is to fall down when removing the rotary blade.

(Example 2 of the conventional mill)

2 is an illustration of another plastic crusher of the prior art.

As shown in the drawing, the conventional pulverizer of Example 2 has the same structure as the pulverizer of Example 1 described above, but the upper body 21 and the lower body 22 are divided in an inclined manner in the first embodiment. The grinder of Example 2 has only a difference in the degree to which the upper body 21 and the lower body 22 are divided in a horizontal state.

The second mill formed as described above also has a lower body 22 being lowered about the hinge 23, so that the work is easier when the screen 24 is replaced to crush the plastic of different colors. It has the same problem as in Example 1.

In addition, the rotary blade 25 of the grinder of the second embodiment is to be installed at both ends of the bearing plate on both sides of the plate 26 of the upper body 21 so as to pull the side to the side when separating for the rotary blade 25 maintenance There is difficulty in separation work.

(Example 3 of the conventional mill)

3 is an illustration of another plastic mill of the prior art.

In the mill 3 of the third embodiment, a lower body 32 having a screen 33 is provided on a base 31 by fixing means, and both ends of the lower body 32 are rotated by bearing blocks at both ends thereof. ) Is installed, the upper body 36, including the hopper 37 so that one side is hinged (35) is installed on the lower body 32 is installed.

The pulverization of the third embodiment configured as described above is to pulverize the plastic as described above.

The mill of the third embodiment, first, the rotary blade 34 and the fixed blade 38 is installed on the lower body 32, so that the maintenance of the rotary blade and the fixed blade is easy, but the screen for grinding the plastic with different colors When the (33) was to be removed, the fixed blade (38) had to be removed, and then the screen was separated, which was cumbersome.

In addition, when the fixed blade 38, which is provided on both sides of the rotary blade 34, is installed on the center line of the rotary blade 34, the driving part shown in the first and second embodiments when the rotary blade of 4 degrees is used. Has the disadvantage of overloading.

Conventional plastic crushers not only have the above-mentioned problems, but also have a structural disadvantage that holes in the screen having a predetermined thickness are formed with the same diameter so that the crushed plastic pieces are caught in the process of exiting the holes. When the fixed blade is installed horizontally with respect to the rotary blade to use only the polished portion, and the polished portion is blunt (weared), there is no need to grind the fixed blade in a separate polishing failure as well as grinding work. It had the disadvantage of decreasing efficiency.

The present invention devised to solve the shortcomings of the conventional plastic pulverizer as described above, the upper body and the lower body forming a pulverization unit for pulverizing the plastic to form a split

The tip of the rotating blade is installed even when the blade is installed with the hinge open and the fixed blades installed on both sides of the rotating blade are angled without being parallel with the center line of the rotating blade. It is installed so that it is not operated at the same time with respect to the fixed blade, and the edge of the fixed blade is operated to crush the plastic by operating against the tip of the rotary blade, and the hole of the screen from which the crushed plastic piece is discharged from the concave inner surface to the convex outer surface. It is formed to be expanded as the first, first, the work space is large and easy to work during maintenance of the rotary blade and fixed blade; Second, it is easy to adjust the spacing of the fixed blade relative to the rotary blade; Third, even when using a rotary blade of 4 degrees (팁), the tip of the rotary blade does not operate at the same time has the advantage that the overload phenomenon does not occur in the drive motor during plastic grinding; Fourth, as the pulverization of the plastic is made at the edge of the fixed blade has the advantage of using the four corners without frequent grinding of the fixed blade; Fifth, the hole of the screen is formed to extend from the concave inner surface to the convex outer surface to provide a plastic shredder that can be discharged stably without a plastic piece.

The present invention for achieving the above object, the caster is provided on the lower side for easy transportation, and the support plate is provided with the upper body and the lower body hinged to the upper side, the side of the support plate is rotated A base having a drive motor for transmitting power to the blades; A semicircular screen is formed on the upper side through which the pulverized plastic can be discharged to draw concentric circles with the outer circumferential surface of the rotary blade, one side of which is hinged to the support plate, and the hinged opening / closing bolt is supported A lower body configured to be selectively regulated in a fixing hole formed in the plate so as to be opened and closed; The upper part includes a hopper into which plastic is injected, and is divided into equal parts with the lower body so that one side is hinged to the support plate, and the fixing part regulated by the opening / closing bolt hinged to the support plate is hinged. An upper body formed at; Both ends of the rotary blade are mounted on the support plate so that the upper body and the lower body are located on the same line as the dividing line in which the upper body and the lower body are divided, and fixed blades are installed on the support plate by bolts so as to be located on both sides of the rotary blade. It is achieved by being installed at an angle rather than being installed side by side with respect to the center of the rotary blade.

The fixed blade is achieved by being installed at an angle with respect to the tip installed on the rotary blade so that the plastic can be crushed at the edge of the fixed blade to utilize the four corners of the fixed blade.

The aperture of the screen is achieved by being shaped to extend from the concave inner surface of the screen to the convex outer surface.

1 is a side view of a plastic mill according to the prior art;

2 is an illustration of another plastic crusher of the prior art.

3 is an illustration of another plastic mill of the prior art.

4 is a front view of another plastic grinder according to the present invention;

Figure 5 is a side view of Figure 4;

Figure 6 is an exemplary view showing a state in which the lower body and the upper body forming the crushing portion of the present invention.

Figure 7 is a side cross-sectional view of the screen of the present invention.

※ Explanation of symbols used in the main part of the drawing ※

110: base 111: caster

112: support plate 113: drive motor

114: fixing hole 115: hinge

116: opening and closing bolt 117: nut

120: lower body 121: screen

122: hinge 123: hinge

124: opening and closing bolt 125: nut

126: hole 130: upper body

131 hinge 132 fixing part

140: hopper 150: rotary blade

151: Tip 152: Pulley

160: fixed blade 161: bolt

The configuration of the present invention, the base 110 is easy to carry;

Support plate installed by the fixing means to the upper side of the base 110

112;

A lower body 120 installed to rotate and open and close about the hinge 122 at the support plate 112, and a hinge 131 at the support plate 112 to correspond to the lower body 120. The upper body 130 is installed so as to be opened and closed by rotation, and the rotary blade 150 and the fixed blade 160 is installed to be located between the lower body 120 and the upper body 130 to crush the plastic It consists of a crushing unit.

The base 112 is provided with a caster 111 at the bottom to facilitate transportation, and the support plate 112 is installed is hinged to the upper body 130 and the lower body 120 to the upper side. Next to the support plate 112, a drive motor 113 for transmitting power to the rotary blade 150 is provided.

The support plate 112 is provided with a lower body 120, the lower body 120 is a semi-circular screen 121 is concentric with the outer circumferential surface of the rotary blade 150 through the hole so that the pulverized plastic can be discharged ) Is installed at the upper side, one side of the hinge plate 122 is installed on the support plate 112, the hinge bolt 124 installed on the opposite side installed hinge 122 is formed on the support plate 112 Fixing hole

It is selectively regulated to 114 so that it can be opened and closed.

The upper body 130 correspondingly installed with respect to the lower body 120 includes a hopper 140 into which plastic is introduced, and is divided into equal parts corresponding to the lower body 120 so that one side of the support plate ( The hinge 131 is installed on the 112, the fixing portion that is regulated by the opening and closing bolt 116, the hinge 115 is installed on the support plate 112.

132 is formed on the opposite side to which the hinge 131 is provided.

Rotating blade to be located on the same line as the dividing line of the upper, lower body (120, 130)

Both ends of the bearing 150 are installed on the support plate 112, and the fixed blade 160 is installed on the support plate 112 by bolts 161 so as to be positioned at both sides of the rotary blade 150. 160 is not installed side by side with respect to the center of the rotary blade 150 is characterized in that it is installed at an angle.

The fixed blade 160 is installed at an angle with respect to the tip 151 installed on the rotary blade 150 so that the plastic can be crushed at the corner of the fixed blade 160 so that the four corners of the fixed blade 160 It is characterized by being able to utilize

The hole 126 of the screen 121 is characterized in that it is formed to be expanded while going from the concave inner surface of the screen 121 to the convex outer surface.

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

Figure 4 is a front view of another plastic pulverizer according to the present invention, Figure 5 is a side view of Figure 4, Figure 6 is an exemplary view showing a state in which the lower body and the upper body forming the pulverization of the present invention opened, Figure 7 One side cross-sectional view of the screen of the present invention.

As shown, when the plastic is crushed using the plastic crusher according to the present invention, the electric power is supplied to the driving motor 113 by operating the power switch in the state in which the plastic is put into the hopper 140.

The driving force of the drive motor 113 driven by the supply of electrical energy is a pulley or sprocket installed on the shaft of the rotary blade 150 by a power transmission means (belt or chain).

It is transmitted to 152 to rotate the rotary blade (150).

The plastic injected into the hopper 140 by the rotation of the rotary blade 150 is supplied to the crushed upper body 130 and fixed to the tip 151 and the rotary blade of the rotary blade 150. It is crushed by the blade 160.

At this time, the tip 151 of the rotary blade 150 is to crush the plastic while operating with respect to the corner of the fixed blade 160 installed to form an angle.

As described above, the plastic pieces pulverized by the rotary blade 150 and the fixed blade 160 exit through the holes 126 of the screen 121 installed above the lower body 120.

The pulverized plastic pieces exiting the hole 126 of the screen 121 are formed so that the hole 126 of the screen 121 is extended from the inside to the outside, thereby being stably discharged without being caught. 7)

When the plastic crushing operation is performed as described above, when the plastic of another color is crushed, the next operation is performed after the screen 121 is exchanged to prevent mixing with the plastic crushed by the preceding crushing operation.

When the screen 121 is to be replaced, the nut 125 of the opening / closing bolt 124 provided with the hinge 123 on the lower body 120 is released to open / close the bolt 124 to the fixing hole 114 of the support plate 112. ) To loosen.

Fixing hole of the support plate 112 by flipping the opening and closing bolt 124 in the above state

When separated from the 114, as shown in Figure 6, the lower body 120 is rotated about the hinge 122 to rotate down to open.

After removing the screen 121 is installed to the upper portion of the lower body 120 in a state where the lower body 120 is open as described above, after mounting a new screen, lift the lower bar 120 (opening and closing bolt 124) Is fixed to the fixing hole 114 of the support plate 112 is a state that can be crushed plastic.

Meanwhile, when the wear of the rotary blade 150 and the fixed blade 160 occurs due to the continuous use of the grinder, maintenance is performed. When maintenance is performed, the work is performed while the upper body 130 is folded.

When the upper body 130 is flipped, the nut 117 of the opening / closing bolt 116 provided with the hinge 115 on the support plate 112 is loosened and then flipped.

In the above state, when the upper body 130 is pulled and rotated to one side, as shown in FIG. 6, the rotary blade 150 and the fixed blade 160 are exposed to the outside.

In the above state, the rotary blade 150 and the fixed blade 160 are repaired or exchanged. The fixed blade 160 is crushed by the edges of the plastic so that the edge is not worn without grinding the blade 160. Is rotated so that the rotary blade 150 can be operated.

When the maintenance of the rotary blade 150 and the fixed blade 160 is completed as described above, after the upper body 130 is placed in its original state, the opening and closing bolt 116 is folded over the upper body

Positioned in the fixing hole 132 of 130 to join the nut 117 is to achieve a state that can be crushed plastic.

The present invention as described above is not limited to the preferred embodiment of the above-described characteristics and various modifications can be made by those skilled in the art without departing from the gist of the present invention claimed in the claims. .

Plastic pulverizer according to the present invention as described above, First, the upper body and the lower body constituting the pulverization is opened to the starting point of the rotary blade, the working space is wide and easy to work during maintenance of the rotary blade and fixed blade; Second, it is easy to adjust the spacing of the fixed blade relative to the rotary blade; Third, the two fixed blades are not installed side by side on the center line of the rotary blades, but are formed at an angle so that the tip of the rotary blades does not operate simultaneously on the fixed blade even when the rotary blade of 4 degrees is used. It has the advantage that the overload phenomenon of the drive motor due to grinding does not occur; Fourth, as the fixed blade is installed at an angle with respect to the tip of the rotary blade, as the crushing of the plastic is made at the corner, it can utilize the four corners without frequent grinding of the fixed blade; Fifth, it is a very useful invention that the hole of the screen from which the pulverized plastic piece escapes is formed to extend from the concave inner surface to the convex outer surface so that it can be discharged stably without the plastic piece being caught.

Claims (3)

The caster 111 is installed at the lower part for easy transportation, and the support plate 112 is installed to the upper body 130 and the lower body 120 is hinged to the upper side, and the support plate 112 is provided. At the side of the base 110 and the drive motor 113 for transmitting power to the rotary blade 150 is installed; The semi-circular screen 121 is concentrically formed with the outer circumferential surface of the rotary blade 150 through the hole so that the pulverized plastic can be discharged, and one side of the support plate 112 is provided with a hinge 122. Hinge (122) Hinge on opposite side installed (123) the lower body 120 to be opened and closed is selectively regulated in the fixing hole 114 formed in the support plate 112, the installed opening and closing bolt 124; The hopper 140 into which plastic is injected is included in the upper part, and divided into equal parts to correspond to the lower body 120 so that one side is provided with a hinge 131 on the support plate 112 and a hinge on the support plate 112. 115, the upper body 130 is formed on the opposite side of the hinge 131, the fixing portion 132 is regulated by the opening and closing bolt 116 is installed; Rotating blade to be located on the same line as the dividing line of the upper, lower body (120, 130) Both ends of the bearing 150 are installed on the support plate 112, and the fixed blade 160 is installed on the support plate 112 by bolts 161 so as to be positioned at both sides of the rotary blade 150. 160 is a plastic crusher, characterized in that formed in an angle without being installed side by side with respect to the center of the rotary blade (150). According to claim 1, wherein the fixed blade 160 is installed at an angle with respect to the tip 151 installed on the rotary blade 150 so that the plastic can be crushed at the edge of the fixed blade 160 fixed blade ( Plastic grinder, characterized in that the use of the 160 corners. The plastic grinder according to claim 1, wherein the holes (126) of the screen (121) are formed to be expanded while going from the concave inner surface of the screen (121) to the convex outer surface.