JP2944421B2 - Waste paper processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste paper processing apparatus,
The used paper is smoothly fed into the biting portion.

[0002]

2. Description of the Related Art Used paper used in offices is discarded or recycled. In order to dispose or recycle the waste paper, it is necessary to crush the waste paper, and a waste paper processing device is used for that purpose.

[0003] Shredders have conventionally been used as used paper processing equipment. The main purpose of the shredder is to keep the information written on the used paper confidential.
Cut into small pieces of about 3 mm. For this reason, the fiber of paper is cut finely, and the crushed paper piece cannot be used as a raw material of recycled paper.

For this reason, there is a processing apparatus which does not cut the fiber of paper as shown in FIGS. 14 (a) and 14 (b).
As shown in the figure, a pair of rotating shafts 51 and 52 extending in the horizontal direction are accommodated in a frame 56 in a state of being arranged in parallel on a horizontal plane, and each of the rotating shafts 51 and 52 has a plurality of rotating blades 53 at equal intervals. , 54 are fixed. The rotary blades 53 and 54 are alternately arranged in the axial direction, and the rotary blades 53 and 54
Are provided so as to overlap each other when viewed from the axial direction.

In the vicinity of the frame 56, the rotating shafts 51, 52
And a rotating shaft 57 parallel to the rotating blades 53,
The base ends of a plurality of press fittings 58 each having a thickness of several millimeters provided between the bases 54 are rotatably provided on a rotation shaft 57. Then, a stopper bolt 59a is screwed into the frame 56 to restrain the downward rotation angle of the pressing metal fitting 58, and a stopper bolt 59b is screwed into the frame 56 to restrain the upward rotation angle. The rotary blade 5 is provided on the lower surface of the pressing fitting 58.
A serrated portion 58a is formed as a stopper that acts on and stops the leading end of the used paper that is hooked and fed to the sheets 3 and 54. An arc-shaped guide surface 58b is formed at the tip of the pressing fitting 58 so that the used paper can be easily introduced between the pressing blade 58 and the rotary blade.

Next, the operation of the used paper processing apparatus will be described. When the used paper is inserted, the used paper 33 is turned along with the rotation of the rotary blades 53 and 54 as shown in FIG.
After coming out of the rotary blades 53 and 54 from between the 54 and the press fitting 58 and moving below the rotary blades 53 and 54, it is guided to the biting portion 55 and crushed.

When forty to fifty waste papers 33 are simultaneously loaded, the tip of the press fitting 58 is pushed up as shown in FIG. 15A, and a sufficient distance from the cutting edge of the rotary blade 54 is secured. The used paper 33 can pass through. Old paper 33
Is large, the leading end of the used paper 33 is caught by the saw-toothed portion 58a, and only a certain amount of the used paper 33 is rotated.
It is fed into the biting portion 55 from between the 54 and the pressing fitting 58. Then, when the used paper 33 closer to the rotary blades 53 and 54 is sequentially sent, the other used paper 33 hooked on the saw-tooth-shaped portion 58a is also hooked and sent on the rotary blades 53 and 54 in order. Since the action point for stopping the waste paper 33 by the saw-toothed portion 58a and the action point hooked on the rotary blades 53 and 54 are both the leading end of the waste paper 33, the waste paper 3
3 is not bent.

[0008]

However, as shown in FIG. 15B, when a large amount of waste paper is supplied, the pressing fitting 58 is pushed up, and when the number of used papers is small, as shown in FIG. The value of the gap G between the rotary blade 54 and the pressing metal member 58 differs between the case where the pressing metal member 58 is located at the lowermost end as shown in ()), and the amount of waste paper sent to the engagement portion 55 is not constant.

If a gap for setting the number of used paper sheets is arranged on a straight line connecting the center of the rotary blade 54 and the rotating shaft 57, the variation in the amount of used paper sheets can be minimized. As a result, the press fitting 58 moves up and down, and the size of the gap is not constant.

Accordingly, an object of the present invention is to provide a used paper processing apparatus which solves the above problem.

[0011]

In order to achieve the above object, the present invention has a structure in which rotary blades are fixed to a pair of rotary shafts which are arranged substantially in parallel on a horizontal plane and are driven in mutually opposite directions. Then, in a used paper processing apparatus set so as to bite the used paper supplied from above the rotary blade from below, the fixed amount feeding member is fixed between the rotary blades adjacent above and outside the pair of rotary shafts. Provided, a plurality of stopper portions in which the gap between the rotary blade when projected on a plane perpendicular to the rotation axis is sequentially reduced along the rotation direction of the rotary blade in the fixed amount feeding member,
The smallest one of the gaps is characterized as a fixed gap for determining the amount of waste paper fed, or a substantially disk-shaped pressing bracket for pressing the inserted waste paper toward the rotary blade is provided next to the gap. The press fitting is rotatably supported via a support shaft that is disposed above each other between the matching rotary blades and that is substantially parallel to the rotating shaft and penetrates the eccentric position of the press fitting, Alternatively, a plurality of rotating blades are fixed to a pair of rotating shafts that are arranged substantially parallel on a horizontal plane and are driven in opposite directions to each other, and one of the rotating blades is characterized by having both of these configurations. In the used paper processing apparatus in which the other rotary blade is positioned between the adjacent rotary blades of each rotary shaft, the rotary blade has a circumferential groove on an outer peripheral surface in a state of loosely fitting to the rotary shaft. Winding prevention The rotating blades are fixed to a pair of rotating shafts which are arranged substantially in parallel on a horizontal plane and are driven in opposite directions to each other, and the used paper fed from above the rotating blades is bitten from below. In the waste paper processing apparatus set to be inserted, the rotation speed of one of the rotation shafts is set to be higher than that of the other, and the rotation is performed around a rotation shaft arranged outside the one of the rotation shafts substantially parallel to the rotation shaft. A movable lever is provided, and at the end of the lever, a peel-off bracket is provided that protrudes downward between adjacent rotary blades on one of the rotating shafts. A push-up means for pushing up the tip of the lever is provided, or all of the above-mentioned configurations are provided.

In addition, by disposing the compression section below the crushing section configured as described above, the crushed waste paper can be compressed and discharged as a columnar mass.

The compression section is fixed to a cylindrical member vertically arranged so that an inlet end is located at an upper part and an outlet end is located at a lower part, and a rotary shaft rotatably driven inside the cylindrical member. An extrusion screw that is provided as well as extrudes waste paper toward the outlet end, and a suppression unit that is formed at an exit near the extrusion screw on the inner peripheral surface of the tubular member and suppresses movement of waste paper that is extruded by the extrusion screw. Have been.

[0014]

In the waste paper processing apparatus according to the first aspect, the waste paper hooked on the rotary blade is temporarily stopped at each stopper portion, and only a certain amount of waste paper is fed to the biting portion by the fixed gap.

In the waste paper processing apparatus according to the second aspect, when waste paper enters between the rotary blade and the pressing metal fitting, the pressing metal fitting rotates and the distance between the rotary blade and the pressing metal fitting changes, and is always substantially constant. The used paper is pressed by the rotating blade with the pressing force of.

In the waste paper processing apparatus according to the third aspect, when the amount of waste paper sandwiched between the rotary blade and the pressing metal member increases, the pressing metal member rotates and the pressing force against the used paper for pressing against the rotary blade is increased. The action point moves to the leading end of the waste paper. For this reason, the distance between the leading end of the used paper stopped by the stopper portion of the fixed amount feeding member and the portion hooked on the rotary blade is reduced, and the bent of the used paper is prevented, so that the used paper can be smoothly fed.

In the waste paper processing apparatus according to the fourth aspect, by forming the circumferential groove, the effective outer diameter of the winding prevention ring can be increased, and the winding of the waste paper around the rotating shaft can be prevented. In addition, the effect of preventing waste paper from being wound is further enhanced.

In the waste paper processing apparatus according to the fifth aspect, the metal fitting peels off the waste paper that has been peeled off by the high-speed rotary blade from the low-speed rotary blade. When the used paper stripped by the peeling bracket accumulates, the strength of the waste paper that is caught by the rotating blade and tries to rotate increases, and the used paper is pushed up, and the used paper rotates together with the rotating blade and is again crushed.

A waste paper processing apparatus according to a sixth aspect performs all the functions of the first to fifth aspects.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings. In this embodiment, since the conventional used paper processing apparatus is partially improved, the same reference numerals are given to the same parts as those in the related art, and the description will be omitted.

FIG. 12 shows an overall view of a used paper processing apparatus according to the present invention. As shown in the figure, the used paper processing apparatus includes a crushing unit 61 for crushing used paper, a compression unit 62 for compressing and forming crushed used paper, and a transfer unit 63 for transferring the compressed used paper to a container 64.
And a movable frame 6 having wheels 65
These components are housed in 6.

First, the structure of the crushing section 61 will be described. FIG.
As shown in FIG. 2, an opening 56 a is formed on the upper surface of the frame 56 in the crushing unit 61, and a waste paper inlet 66 a for inserting waste paper from the side is formed on the upper part of the frame 66. Are as shown in FIG.

A fixed amount feeding member 67 for feeding used paper by a fixed amount so that all of the used paper input from the input port 66a does not move downward from the outside of the rotary blades 53 and 54 as it is and is not bitten by the biting portion 55. Rotating blades 53 and 5 are adjacent
4 and are connected to the frame 56 via bolts 68. The fixed-rate feed member 67 has a rotary blade 5 when projected onto a plane perpendicular to the rotary axes 51 and 52.
A round bar 69 as a stopper portion in which the distance between the cutting edges 3 and 54 gradually decreases along the rotation direction of the rotary blades 53 and 54.
a, 69b, and 69c are fixed to the fixed-quantity feeding member 67 in a state where their axes are orthogonal to the axes of the rotating shafts 51 and 52. A fixed amount gap G that determines the amount of used paper to be fed is set between the round bar 69c and the rotary blades 53 and 54.

In addition, as shown in FIG. 3, a plurality of sawtooth-shaped projections 69d are formed in place of the round bar as the fixed-rate feeding member.
The fixed amount gap G may be formed at a portion where the interval between the rotary blade 54 and the serrated protrusion 69d is the smallest.

The rotary blade 5 regardless of the amount of used waste paper
In order to make the force pressing the used paper against the papers 3 and 54 substantially constant, a press fitting 70 is provided above between the adjacent rotary blades 53 and 54. A disc-shaped pressing member 70 is used, and the pressing members 70 are turned around both ends of a support shaft 71 having a central portion fixed to the tip of a fixed-quantity feeding member 67 in a state parallel to the rotating shafts 51 and 52. It is movably supported. The press fitting 70 is attached to the support shaft 71 in a state where the support shaft 71 penetrates the eccentric position. In addition, as shown in FIGS. 2A and 2B, all the press fittings 70 may be supported by a total of two support shafts 71 by connecting both ends of the adjacent support shafts 71.

When the used paper is crushed by the rotating blades 53 and 54, the crushed used paper is wound around the rotating shafts 51 and 52 and cannot be removed. Therefore, a winding prevention ring 72 is provided between the adjacent rotating blades 53 and 54. . A circumferential groove 72 a having a V-shaped cross section is formed in the winding prevention ring 72.
The reason why the circumferential groove is formed in this manner is that the effective outer diameter of the anti-winding ring is increased to enhance the anti-winding effect, while the anti-winding ring is provided on the blade edge of the rotary blade facing the anti-winding ring. Is not damaged by contact. Circumferential groove 7
By forming a 2a, in FIG. 4 (b) the radius of 4 wrap preventing ring 72 should contact the rotary blade to be set to a radius R ₁ would otherwise as shown in (a) As shown, it is possible to set the size to (R ₁ + R ₂ ). In this case, the depth of the circumferential groove 72 is required to be set to the value of R _2. In addition, the circumferential groove may have a U-shape as shown in FIG.

In order that the crushing can be carried out smoothly even if the used paper is continuously fed, the rotation speed of the rotary blade 54 is changed to the rotation speed of the rotary blade 53 as shown in FIGS. 5 (a) and 5 (b). Is made larger. In this way, the crushed waste paper is transferred from the slower rotating blade 53 to the faster rotating blade 54.
Because the paper is torn off, the waste paper crushed after passing through the biting portion 55 is wound around the faster rotary blade 54, and the cutting edge of the slower rotary blade 53 is not covered by the crushed waste paper. . Therefore, the used paper can be continuously supplied.

However, if the used paper wound around the faster rotating blade 54 is not removed from the rotating blade 54 as soon as possible, the crushing ability will be reduced.

In order to peel the crushed waste paper from the faster rotating blade 54, one end of a long bar-shaped peeling metal fitting in the horizontal direction is faced between the adjacent rotating blades 54, and the other end is connected to the frame 56. The used paper stuck on the rotary blade 54 can be peeled off. However, the used paper that has been peeled off accumulates on the peeling metal fittings and stays as it is, so that the processing does not proceed.

For this reason, in the present invention, when providing a difference in the number of rotations of the rotary blade, as shown in FIG.
The fixed amount feeding member and the pressing metal fitting which were located above 4 are removed, and a peeling metal fitting 73e is provided instead. That is, the bearing member 73a connected to the frame 56 and the rotating shaft 73b
One end of the arm 73c is rotatable through the frame 5
6, a connecting member 73d parallel to the rotating shaft 52 is connected to the other end of the arm 73c. The connecting member 73d is disposed between the adjacent rotating blades 54 and extends long in the vertical direction.
The upper part of the book removal fitting 73e is connected to the connecting member 73d. Here, a circle passing through the edge of the rotary blade 54 and the peeling metal 7
A line that is in contact with the circle at the intersection with 3e is set so as to be located above the rotation shaft 73b, and is used as a lifting means. this is,
When the peeling metal member 73e receives a force due to the rotation of the crushed waste paper, the arm 73c is rotated upward about the rotation shaft 73b, whereby the waste paper collected on the left side in FIG. 5 of the peeling metal member 73e. The crushing is performed again by passing between the peeling bracket 73e and the rotary blade 54. In addition, the number of the peeling metal fittings 73e is two or three.
Alternatively, it may be 5 or more.

FIGS. 6 and 7 show another embodiment of the peeling bracket 73e. FIG. 6 shows a configuration in which a pair of peeling fittings 73e is attached to the connecting member 73d, and a receiving plate 73f extending from the upper portion to the lower portion of the connecting member 73d is provided. The reason why the receiving plate 73f is provided is that when the amount of waste paper peeled off and accumulated by the peel-off fitting 73e increases, the waste paper pushes up the left end of the receiving plate 73f to facilitate the lifting of the peel-off fitting 73e, and at the same time, the left end of the receiving plate 73f. Is guided between the pressing metal fitting 70 on the left side and the rotary blade 53 having a low rotation speed, and the lower right end of the receiving plate 73f allows the rotary blade 54 to feed the waste paper to the biting portion 55 by the rotary blade 54. This is because it is performed reliably. Side plates 73g are provided on both sides of the receiving plate 73f in order to prevent waste paper from entering the inside of the receiving plate 73f. In addition, the number of the peeling metal fittings 73e may be three or more. FIG. 7 shows a partially modified left end of the receiving plate 73f shown in FIG. In addition, although the thing which made the peeling metal fitting 73e swingable or the thing which was swingable and provided with the receiving plate was shown here, it made it impossible to swing, made it impossible to swing and peeled off with the peeling metal fitting. It is also possible to adopt a configuration having means for sending out used paper again.

Next, the structure of the compression section 62 will be described with reference to FIG. The compression section 62 includes cylindrical members 1 and 8, an input hopper 2 for charging used paper into an upper portion of the cylindrical member 1, and an extrusion screw 5 attached to the rotating shaft 3 and driven to rotate.
And so on.

Hereinafter, the structure of each component will be described. The cylindrical member 1 and the cylindrical member 8 provided so as to abut under the cylindrical member 1 and the base 10 are connected with connecting bolts 9a and 9b.
Are coupled through. A ring member 12 is mounted on the base 10 via a plurality of columns 11 arranged along the circumference. The charging hopper 2 is mounted on the ring member 12.

A support member 22 is provided between the base 10 and the ring member 12 and is fixed to the column 11.
A ring-shaped gear 19 is rotatably provided on the bearing 2 via a bearing base 13 and a bearing 14, and the rotating shaft 3 is interlocked to the gear 19 via a power transmission member 4. The power transmission member 4 is composed of a ring 4a, a boss 4c, and four connecting portions 4b extending in a radial direction. The ring 4a is connected to the gear 19, while the rotary shaft 3 is welded to the boss 4c. Alternatively, they are connected by an appropriate means such as a key connection. A gear 28 and a scraper 27 are provided below the support member 22 via a bearing 26.
Is attached.

The following means are provided in order to allow the used paper falling from the loading hopper 2 to smoothly enter the tubular member 1. First, in order to prevent the falling waste paper from being caught on the connecting portion 4b and rotating together with the connecting portion 4b, the pins 21a and the inner circumferential surfaces of the bearing base 13 and the supporting member 22 are arranged at equal intervals along the circumferential direction. 21b is implanted, and the annular portion 4a is formed with a widened portion 16 whose inner diameter becomes larger downward. Further, when the used paper is caught on the upper end of the rotating extrusion screw 5, the scraper 27 is rotated in the same direction as the rotation direction of the extrusion screw 5 at a higher speed than the rotation speed of the extrusion screw 5 to scrape the used paper. Pins 21d, whose tips project downward, are provided on the peripheral surface at equal intervals along the circumferential direction. Further, a pin 21c is provided on the inner peripheral surface of the support portion 22 fixed to scrape the used paper caught on the rotating pin 21d.

A spiral extrusion screw 5 is fixedly provided at the lower end of the rotating shaft 3. The gear 19 integral with the rotating shaft 3 and the gear 28 integral with the scraper 27 are each a single gear. The gear is fixedly connected to an output shaft of a motor (not shown) via another gear.

The inner peripheral surface of the cylindrical member 1 has a ridge shape extending in the axial direction as shown in FIG. 9 in order to prevent the used paper from moving in the axial direction but in the circumferential direction. Protrusion 32
Is formed. The cross section of the projection 32 is set in a saw blade shape so as to reliably prevent the waste paper from rotating together with the rotation of the extrusion screw 5.

A tapered portion 35 is formed as a suppressing means for suppressing the movement of the used paper downward so that the used paper extruded along the axis by the extrusion screw 5 is compressed. That is, as shown in FIG. 11, the inner diameter of the lower part of the cylindrical member 8 is set to be smaller than the inner diameter D ₂ of the cylindrical member _1, and the upper part of the cylindrical member 8 is Tapered part 3 whose inner diameter decreases toward the bottom
5 are formed. The inner peripheral surface at the upper end of the cylindrical member 8 is set at the same position as the bottom surface of the ridge-shaped projection 32. Then, as a result, a plurality of grooves 32a are formed in a manner similar to the formation of the ridge-shaped protrusion on the tapered portion 35. The reason why the groove 32a is formed in the tapered portion 35 in this way is to prevent a large rotating force from acting on the waste paper due to friction with the lower surface of the extrusion screw 5 and to prevent the waste paper from rotating together with the extrusion screw 5. .

If the inner diameter D ₁ of the portion below the tapered portion 35 of the cylindrical member 8 is smaller than the inner diameter D ₂ of the cylindrical member 1, the waste paper will be strongly pressed against the tapered portion 35, and In order not to hinder the movement of the waste paper in the direction, the cross-sectional shape of the ridge-shaped projection formed by forming the groove 32a is not limited to a saw-tooth shape formed on the cylindrical member 1, but may be rectangular. Shaped.

As shown in FIG. 8, the positions of the lower end of the rotary shaft 3 and the lower end of the extrusion screw 5 are set to be substantially the same in the vertical direction, and the lower end of the rotary shaft 3 does not protrude from the lower end of the extrusion screw 5. In addition, the supply of the waste paper below the extrusion screw 5 is left to natural fall utilizing gravity, and the processing capacity must be ensured if the waste paper does not enter between the extrusion screw 5 and the compressed waste paper below the extrusion screw 5. The lower end of the rotating shaft 3 is provided with an inclined surface 39 having a shape in which an inclined cut surface is formed in an arc shape, for the purpose of guiding the falling waste paper to easily enter the lower part of the extrusion screw 5. ing. Further, a reinforcing rib 17 is formed at the lower end of the extrusion screw 5 so as not to bend by a reaction force applied from the used paper. As shown in FIG. 10, the lower end of the rotary shaft 3 and the lower end of the extrusion screw 5 may be formed at substantially the same position without forming an inclined surface.

Finally, the structure of the transfer section 63 will be described with reference to FIG. The transfer section 63 transfers the compression-formed waste paper to the container 64 using the pushing force of the extrusion screw 5 without providing a separate driving means such as a belt conveyor. The transfer section 63 includes a bottom plate 75 and a pair of guide plates 76 as shown in FIG. That is, the guide plates 76 are fixed to both sides of the long bottom plate 75 to form a guide guide 77 having a substantially U-shaped cross section, and the guide guide 77 is provided from below the compression portion 62 as shown in FIG. After being guided obliquely downward at θ = 45 ° by the inclined flat plate 75b, it is guided obliquely upward along an arc, and the tip thereof is the container 64.
It is located above a bag 78 mounted therein. The angle between the inclined flat plate 75b and the horizontal plane was θ = 45 °
When the force for pushing out the used paper vertically downward by the extrusion screw 5 is directed in the horizontal direction, the horizontal component becomes the largest when θ = 45 °, and the frictional force applied from the guide 77 to the used paper This is because it is possible to minimize the influence of the pressure on the extrusion screw 5. And
A vertical plate 75a is coupled to an end of the inclined flat plate 75b so that the used paper pushed downward from the inside of the cylindrical member 8 moves smoothly, and a vertical guide plate 76a formed integrally with the guide plate 76.
Are connected to both sides of the vertical plate 75a. The upper ends of the vertical plate 75a and the vertical guide plate 76a are connected to the lower end of the tubular member 8 in the compression section 62. For example, a Teflon film as an organic material having a small friction coefficient is adhered to the upper surface of the bottom plate 75, the inclined flat plate 75b, the opposing surface of the guide plate 76, and the like in order to improve the sliding with the used paper.

Next, the operation of the used paper processing apparatus will be described. While rotating the rotary blades 53 and 54 in directions opposite to each other as shown by arrows in FIG.
When the used paper is put into the frame 56 from 6a, the used paper is pressed by the rotating blades 53 and 54 by the right and left pressing metal fittings 70, and the used paper is hooked by the rotating blades 53 and 54 and is rotated. Is moved downward from the outside to the biting portion 55 and crushed by the biting portion 55 so as to be torn. When the amount of waste paper is small, the pressing metal fitting 70 is shown in FIG.
As shown in the figure, the round bars 69a and 69b are in a state of being substantially hidden while maintaining a state of being naturally hung from the support shaft 71, and the outer peripheral surfaces of the pressing metal fitting 70 and the fixed-rate feeding member 67 are arc-shaped. Therefore, the used paper is curved along the outer peripheral surface thereof and is easily moved by the rotary blades 53 and 54. When the amount of used paper increases, the pressing member 70 rotates as indicated by a two-dot chain line in FIG. 1B, and the point of action of the pressing force applied to the used paper from the pressing member 70 moves. Pressing bracket 70 and rotary blades 53, 5
Once the waste paper is sandwiched between the waste paper 4 and the pressing bar 70, the round bars 69a and 69b are exposed because the pressing member 70 rotates, and the leading end of the waste paper of a certain amount or more hits the round bars 69a and 69b. Is suppressed. While the tip of the waste paper is stopped by the presence of the round bars 69a and 69b, the waste paper is
If the distance between the tip of the used paper and the position where the pressing metal member 70 acts on the used paper is too large, the used paper is bent and cannot be smoothly fed into the engagement portion 55 because the front end of the used paper is caught by the cutting edges 3, 54. Regarding this point, in the present invention, the point of action of the pressing force by the pressing metal fitting 70 moves toward the leading end of the used paper according to the amount of the used paper, and the distance between the leading end of the used paper and the applying point of the pressing force becomes small. The feeding is performed very smoothly. The used paper is stopped by the round bars 69a, 69b and 69c in order from the one farthest from the rotary blades 53 and 54, and sent in order from the closest one.
Since the permissible number of used papers is set by the fixed gap G with 4, a large amount of used paper is not fed into the catching portion 55 at the same time, and an overload does not occur. Constant feed member 6
The same applies to the case where the shape shown in FIG.

When the paper is crushed and elongated, the used paper is
It may not be able to be wrapped around 1, 52 and may eventually become a large load on the rotational force. In the present invention, since the winding prevention ring 72 is provided between the adjacent rotary blades 53 and 54 and the rotary shafts 51 and 52 are not exposed, the rotary shaft 5
The winding of the used paper around the first and second 52 is prevented. Moreover, from the original 2R ₁ The effective outer diameter of Makizuke prevention ring 72 as shown in FIG. 4 by forming a circumferential groove 72a to the outer peripheral surface of the winding prevention ring 72 ₂ (R ₁ + R 2) Even if it is increased to increase the winding prevention effect, the outer circumferential surface of the winding prevention ring 72 will not be damaged by the winding prevention ring 72 hitting the rotating blades 53 and 54 facing each other.

Next, the operation of the used paper processing apparatus shown in FIG. 5 will be described. In the present apparatus, as described above, the used paper is fed toward between the rotary blade 53 having a low peripheral speed and the press fitting 70.
Then, the used paper passes through the outside of the rotary blade 53 and is crushed by the biting portion 55, and thereafter, the used paper wound around the rotary blade 53 having a low peripheral speed is peeled off by the rotary blade 54 having a high peripheral speed. Waste paper is a rotating blade 54 with a large peripheral speed
Move to. For this reason, the tip of the rotary blade 53 having a small peripheral speed is always exposed without being buried with waste paper, and a state where the waste paper can be hooked is maintained. Therefore, even if the used paper is continuously supplied, it can be continuously processed. On the other hand, a band-shaped waste paper is wound around the rotary blade 54 having a high peripheral speed, and the wound waste paper is peeled off by the peeling bracket 73e. The waste paper that has been peeled off by the peeling metal fitting 73e accumulates more and more to the left of the peeling metal fitting 73e in FIG. 5. The arm 73c rotates clockwise about the rotation shaft 73b. As a result, the accumulated used paper is fed from between the peeling bracket 73e and the rotary blade 54, and the engaging portion 5
Move to 5. When the receiving plate 73f is provided as shown in FIGS. 6 and 7, since a large amount of used paper rotating force acts on the receiving plate 73f, the rotation of the arm 73c is performed more smoothly.

The used paper crushed as described above falls from the crushing section 61 to the compression section 62. In FIG. 8, the extrusion screw 5 and the scraper 27 are rotated clockwise as viewed from above by a single motor (not shown) via the gears 19 and 28, and the dropped waste paper enters the input hopper 2. The waste paper caught on the input hopper 2 is the power transmission member 4
And is moved downward. The waste paper entangled with the upper end of the extrusion screw 5
It is scraped off by the pin 21d of the scraper 27 which rotates slightly faster than it. In addition, the used paper entangled with the rotating power transmission member 4 and the scraper 27 is scraped off by the fixed and non-rotating pins 21a to 21c.
The used paper that has fallen downward is subjected to the action of the extrusion screw 5. Although the waste paper tries to rotate together with the extrusion screw 5, the friction coefficient in the circumferential direction between the waste paper and the inner peripheral surface of the tubular member 1 is large due to the presence of the ridge-shaped projections 32. It is pushed downward without rotating together. Since the ridge-shaped projection 32 extends in the axial direction, no resistance is applied from the tubular member 1 to the downward movement of the waste paper.

The used paper that has been initially charged passes through the extrusion screw 5 and accumulates in the cylindrical member 8 having a small inner diameter. Thereafter, the used paper sequentially fed is stacked. Then, the waste paper pressed by the extrusion screw 5 receives a resistance force at the position of the tapered portion 35, and the waste paper is pressed not only in the axial direction but also in the radial direction to fill the gap between the waste paper. The waste paper thus formed into a solid cylindrical shape is given a force greater than the frictional force generated between the waste paper and the tubular member 8 by the pressing force of the extrusion screw 5, and is pushed downward. Since the tapered portion 35 is formed, the waste paper can be compressed at this portion and discharged as a columnar mass of appropriate hardness.

Since the lower end of the rotating shaft 3 does not protrude below the lower surface of the extrusion screw 5 and the inclined surface 39 is formed at the lower end of the rotating shaft 3, the crushed waste paper is It is guided from the inclined surface 39 below the extrusion screw 5 without being obstructed. Therefore, the rotating shaft 3 does not bend due to the reaction force in the radial direction from the waste paper compressed by the extrusion screw 5.

In order to prevent the used paper from rotating together with the extrusion screw 5, not only a ridge-shaped projection is formed on the inner peripheral surface of the tubular member 1, but also a plurality of grooves 32a are formed in the tapered portion 35 of the tubular member 8. Is provided, not only the compression ability is improved as compared with the case where the ridge-shaped projections 32 are provided only on the cylindrical member 1, but also the substantially cylindrical waste paper discharged downward from the cylindrical member 8. There is no loss of shape.

The used paper extruded downward from the cylindrical member 8 is compressed and formed into a substantially columnar shape, pushed by the pushing force of the extrusion screw 5 and advanced. As shown in FIG. 12, the used paper is once pushed obliquely downward and then obliquely upward, and thereafter falls by the action of gravity and enters the bag 78. Since the Teflon film is stuck on the inner surface of the guide guide 77 and is slippery, the waste paper sequentially extruded by the extrusion screw 5 is smoothly transferred into the bag 78 without stagnation and spilling.

[0050]

As described above, according to the used paper processing apparatus according to the first aspect, the fixed amount feeding member is provided and the fixed amount gap is set between the stopper portion and the rotary blade. Regardless of the amount, a certain amount of used paper can always be fed to the biting portion. Therefore, the used paper can be smoothly crushed without being overloaded.

According to the used paper processing apparatus of the second aspect,
A disc-shaped press fitting is provided rotatably between adjacent rotary blades, so when the amount of used paper increases, the press fitting rotates and the gap with the rotary blade changes according to the amount of used paper. I do. Therefore, an appropriate pressing force is always obtained for the rotary blade.

According to the used paper processing apparatus of the third aspect,
Since the fixed amount feeding member and the pressing metal member are provided, when the amount of waste paper sandwiched between the rotary blade and the pressing metal member increases, the pressing metal member rotates and the tip of the used paper stopped by the stopper of the fixed amount feeding member and the rotary blade. The distance from the portion to be hooked on the paper is reduced, and the bent of the used paper is prevented, so that the used paper can be smoothly fed.

According to the used paper processing apparatus of the fourth aspect,
Since the anti-winding ring having a circumferential groove is loosely fitted between adjacent rotary blades, the effective outer diameter of the anti-winding ring can be increased, and the crushed waste paper can be wound around the rotary shaft. This can prevent the waste paper from being crushed smoothly.

According to the used paper processing apparatus of claim 5,
Since the peeling metal fittings were provided, the waste paper clinging to the rotating blade with a large rotation speed was peeled off and deposited by the peeling metal fittings,
When the accumulation amount increases, the peeling metal fitting is lifted by the rotational force applied to the used paper, and the used paper is sent to the biting portion.
Therefore, the used paper is crushed smoothly.

According to the used paper processing apparatus of claim 6,
Since the fixed amount feeding member, the press fitting, and the winding prevention ring are provided with the peeling fitting, all the effects of claims 1 to 5 can be obtained.

[Brief description of the drawings]

FIG. 1A is a plan view and FIG. 1B is a front view of an embodiment of a crushing unit of a used paper processing apparatus according to the present invention.

FIG. 2 is a plan view and FIG. 2B is a front view of another embodiment of the crushing unit of the used paper processing apparatus according to the present invention.

FIG. 3 relates to a crushing unit of the used paper processing apparatus according to the present invention;
The block diagram which shows the Example of other fixed-quantity feeding members.

FIG. 4 relates to a crushing section of a used paper processing apparatus according to the present invention;
Explanatory drawing of a winding prevention ring.

FIGS. 5A and 5B are plan views and FIG. 5B is a front view of an embodiment of a crushing unit having a peeling metal fitting of the used paper processing apparatus according to the present invention.

FIG. 6 is a plan view of another embodiment of the crushing unit having a peeling metal fitting of the used paper processing apparatus according to the present invention, in which FIG.
(B) is a front view.

FIGS. 7A and 7B are diagrams illustrating another embodiment of the peeling metal fitting in the embodiment of the crushing unit having the peeling metal fitting of the used paper processing apparatus according to the present invention, wherein FIG. 7A is a configuration diagram and FIG.

FIG. 8 relates to a compression section of a used paper processing apparatus according to the present invention;
FIG.

FIG. 9 relates to a compression unit of the used paper processing apparatus according to the present invention;
The perspective view of a cylindrical member.

FIG. 10 is a configuration diagram showing another embodiment of an extrusion screw relating to a compression section of a used paper processing apparatus according to the present invention.

FIG. 11 is a cross-sectional view showing details of a tubular member and the like relating to a compression section of the used paper processing apparatus according to the present invention.

FIG. 12 is an overall view of a used paper processing apparatus according to the present invention.

FIG. 13 is a configuration diagram of a guide that constitutes a transfer unit of the used paper processing apparatus according to the present invention.

14 (a) is a plan view and FIG. 14 (b) is a front view relating to a crushing unit in a conventional used paper processing apparatus.

15A and 15B are explanatory views of a crushing section in a conventional used paper processing apparatus, in which FIG. 15A is an explanatory view of an operation of a pressing fitting, and FIGS.

[Explanation of symbols]

 51, 52: rotating shafts 53, 54: rotating blade 55: biting portion 67: fixed amount feeding member 69a to 69c: round bar 69d: serrated projection 70: pressing metal fitting 71: support shaft 72: winding prevention ring 72a: circle Circumferential groove 73b Rotating shaft 73c Lever 73e Peeling bracket 73f Receiving plate

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B02C 18/00-18/44

Claims (6)

(57) [Claims] 1. A rotating blade is fixed to a pair of rotating shafts which are arranged substantially in parallel on a horizontal plane and are driven in opposite directions to each other, and is set so as to bite waste paper inserted from above the rotating blade from below. In a waste paper processing apparatus, a fixed-rate feed member is fixedly provided between adjacent rotary blades above and outside a pair of rotary shafts, and the fixed-rate feed member is projected onto a plane perpendicular to the rotary shaft. A plurality of stopper portions whose gaps with the rotary blade are sequentially reduced along the rotation direction of the rotary blade are provided, and the smallest one of the gaps is a fixed gap for determining the amount of used paper fed. Waste paper processing equipment. 2. A rotary blade is fixed to each of a pair of rotary shafts which are arranged substantially in parallel on a horizontal plane and are driven in opposite directions to each other, and is set so as to bite waste paper supplied from above the rotary blade from below. In the waste paper processing apparatus, a substantially disk-shaped pressing member for pressing the inserted waste paper toward the rotary blade is disposed above each other between the adjacent rotary blades, and is substantially parallel to the rotary shaft. A used paper processing apparatus characterized in that the press fitting is rotatably supported via a support shaft penetrating an eccentric position of the press fitting. 3. The used paper processing apparatus according to claim 1, wherein the press fitting is provided. 4. A plurality of rotary blades are respectively fixed to a pair of rotary shafts which are arranged substantially in parallel on a horizontal plane and are driven in mutually opposite directions, and the other rotary blade is positioned between one rotary blade. In the used paper processing apparatus, a winding prevention ring having a circumferential groove on an outer circumferential surface is provided between adjacent rotary blades of each rotary shaft while being loosely fitted to the rotary shaft. Characterized waste paper processing equipment. 5. A rotary blade is fixed to each of a pair of rotary shafts arranged substantially in parallel on a horizontal plane and driven in opposite directions to each other, and is set so as to bite waste paper inserted from above the rotary blade from below. In the waste paper processing apparatus, a rotating shaft that is set to be higher than the other rotating shaft and that is rotatable about a rotating shaft arranged outside the one rotating shaft substantially parallel to the rotating shaft. Is provided at the tip of the lever with a peel-off fitting protruding downward between adjacent rotary blades on one of the rotating shafts.When the amount of waste paper peeled off from the rotary blade by the peel-off fitting increases, the tip of the lever is removed by waste paper. A used paper processing apparatus, comprising a push-up means to be pushed up. 6. The fixed-quantity feeding member, the pressing fitting,
The used paper processing apparatus according to claim 5, wherein the winding prevention ring is provided.