JP3035221B2 - 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 an apparatus for treating used paper, and more particularly, to an apparatus for smoothly transferring and crushing used paper to a 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.

[0004] For this reason, there is a processing apparatus which does not cut the paper fiber, which has a structure shown in FIGS. 11 (a) and 11 (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.

[0005] All of the used waste paper is directly
In order to prevent the paper from moving downward from outside and being caught in the biting portion 55, a fixed amount feeding member 67 for feeding used paper by a fixed amount is disposed between every two adjacent rotary blades 53, 54. And is connected to the frame 56 via bolts 68. The fixed amount feeding member 67 includes rotating shafts 51 and 52.
The round bars 69a, 69b, 69 as stoppers gradually reduce the distance between the blades of the rotary blades 53, 54 when projected onto a plane perpendicular to the surface along the rotation direction of the rotary blades 53, 54.
c is fixed to the fixed-quantity feeding member 67 in a state where its axis and the axes of the rotating shafts 51 and 52 are orthogonal to each other. 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 order to make the force for pressing the used paper against the rotary blades 53, 54 substantially constant irrespective of the amount of the used used paper, a press fitting 70 is provided above the adjacent rotary blades 53, 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 swingably attached to the support shaft 71 with the support shaft 71 penetrating through the eccentric position.

When the used paper is crushed by the rotating blades 53 and 54, the crushed used paper is wrapped around the rotating shafts 51 and 52 and cannot be removed, so that the adjacent rotating blades 53 and 54 shown in FIG. A winding prevention ring 72 having the shape shown in FIG. A circumferential groove 72 a having a V-shaped or U-shaped cross section is formed in the winding prevention ring 72. The reason for forming the circumferential groove in this way is to increase the effective outer diameter of the anti-winding ring to enhance the anti-winding effect, while providing the outer peripheral surface of the anti-winding ring with the edge of the rotary blade facing the opposite end. This prevents the winding prevention ring from being damaged by contact.

Next, the operation of the used paper processing apparatus will be described. When the used paper is loaded while rotating the rotary blades 53 and 54 in directions opposite to each other as shown by arrows in FIG.
Since the used paper is pressed by the rotary blades 53 and 54 by the right and left pressing metal fittings 70, the used paper is hooked by the rotary blades 53 and 54 and turns downward from outside the rotary blades 53 and 54 to the biting portion 55. It moves and is crushed to tear at the biting portion 55. When there is no used paper, the pressing 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 distal end of the fixed-rate feeding member 67 have an arc shape. As a result, the used paper is curved along its outer peripheral surface, and is easily transported by the rotary blades 53 and 54.
When the used paper is supplied, the pressing member 70 swings as indicated by a two-dot chain line in FIG. 11B, 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 blade 5
Once the waste paper is sandwiched between the waste papers 3 and 54, the press fitting 70 swings to expose the round bars 69a and 69b, and the leading end of the waste paper of a certain amount or more hits the round bars 69a, 69b and 69c. Is suppressed. Round bar 69a, 6
While the leading end of the used paper is stopped by the presence of 9b and 69c, the used paper is caught by the cutting edge of the rotary blade 54. If the distance between the leading end 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 Is bent and cannot be smoothly fed into the engaging portion 55. 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 used paper, and the distance between the leading end of the used paper and the point of application of the pressing force is reduced, so that the feeding of the used paper is performed extremely smoothly. . The used paper is round bars 69a, 69b,
It is stopped at 69c and fed in order from the closest one. However, since the allowable number of used papers is set by the fixed gap G between the round bar 69c and the rotary blade 54, a large amount of used paper is simultaneously sent to the biting portion 55. It will not be overloaded by being sent.

When the paper is crushed and elongated, the waste paper is
It may not be able to be wrapped around 1, 52 and may eventually become a large load on the rotational force. Adjacent rotary blades 5
Since the anti-winding ring 72 is provided between the three rotary blades 54 and between the adjacent rotary blades 54 and the rotary shafts 51 and 52 are not exposed, the winding of the used paper around the rotary shafts 51 and 52 is prevented.

[0010]

However, the conventional waste paper processing apparatus has the following problems 1 to 4.

First, the problem 1 will be described. As shown in FIG. 13, the overlapping dimension between the rotary blades 53 and 54 is P,
Assuming that the interval between the rotary blades 53 and 54 is Q, generally, when P is large and Q is small, the rotary blade 5 facing the waste paper 5
Since the 3,54 blades are pressed to the bottom of the blade, the waste paper is easily broken. Further, even when P and Q are constant, a difference also occurs depending on the depth of the blade bottom of the rotary blades 53 and 54. If the blade bottom is shallow, the waste paper will not be sufficiently passed only once through the biting portion 55. It is not crushed but merely perforated. All the rotary blades on the side where waste paper is loaded are shown in FIG.
In the case where the bottom of the blade is shallow as shown in (a), (b) and (c), the used paper is cut into a tape shape by the blade, and therefore, no transfer force is applied from the rotary blade to the used paper. bad. This is because, in the case of a blade having a shallow blade bottom, waste paper is generally scraped due to a short interval between the tips of the blades. As a countermeasure, if the number of blades is reduced by making the bottom of the blade shallow and widening the distance between the tips of the blades, the used paper is not sufficiently crushed and only perforated holes are formed.

On the other hand, when the blade bottom is deepened, a large number of used papers 73 are sandwiched between the blade and the round bar 69a by the rotation of the blade because the tip of the used paper 73 reaches the blade bottom as shown in FIG. When an impact occurs, the blades cut into a large number of used papers 73, and a large amount of used paper 73 is transferred to the biting portion 55, so that the fixed amount of used paper is not transferred. For this reason, when the blade bottom is made deep, as shown in FIG. 16, it is inevitable that the leading ends of the used paper 73 are not aligned and the used paper 73 closer to the cutting edge is inserted so as to precede it.

Next, the problem 2 will be described. FIG.
As shown in (b), the winding prevention ring 72 is
, While being rotatably attached to the rotating blades 53 and 54 facing the outer peripheral surface of the wrap prevention ring 72, the used paper that is rotated while rotating collides with the outer peripheral surface of the wrap prevention ring 72. For this reason, the inner peripheral surface of the winding prevention ring 72 is
1 and 52, generating a loud noise. On the other hand, if a soft material is used for the winding prevention ring 72, the noise is reduced. However, as shown in FIGS. The waste paper is jammed in the groove, which is not preferable.

Next, the problem 3 will be described. When the used paper is soft, the tip of the used paper is a round bar 6 shown in FIG.
Even if it gets caught on 9a-69c and is stopped for a few seconds,
The lower part of the stack of used paper is cut in a streak by the rotary blade and becomes easy to bend.
Pass through 9a-69c. For this reason, when the used paper is thin paper, even if the angle between the axis of the round bar 69a to 69c and the outer peripheral surface of the rotary blade 54 is close to a right angle, the angle between the tip of the round bar and the outer peripheral surface of the rotary blade is small. If the distance is determined accurately, crushing can be performed smoothly. However, when thick paper such as a business card or a postcard is inserted, as shown in FIG. 18, once the leading end of the used paper 73 is hooked on the base ends of the round bars 69a, 69b, 69c,
Since the thick paper is hard, the leading end of the waste paper 73 remains upward, and the waste paper 73 is always round bars 69a, 69b, 6
The vehicle cannot pass through 9c and stagnates.

Finally, problem 4 will be described. As shown in FIG. 17, the pressing metal fitting 70 for pressing the used paper against the rotary blade has the lower end of the rotary metal fitting 54 as shown in FIG.
And is pushed up by the input of used paper, and at the same time, presses the used paper against the cutting edge of the rotary blade 54 to pass the used paper from below the round bar 69a.
Here, the press fitting 70 is swingable about the support shaft 71 as shown by an arrow. However, even if a waste paper is suddenly inserted to push up the press fitting 70 directly upward, Since the pressing fitting 70 does not move upward, it may receive a large impact.

Accordingly, an object of the present invention is to provide a used paper processing apparatus which solves the above problems 1-4.

[0017]

According to a first aspect of the present invention for achieving the above object, a plurality of rotating shafts arranged substantially parallel to each other and driven in opposite directions to each other are provided. In a waste paper processing apparatus in which rotating blades are fixed to each other so that the other rotating blade is positioned between one rotating blade, the rotating blade fixed to at least one of a pair of rotating shafts The present invention is characterized in that both a rotary blade having a deep blade bottom and a rotary blade having a shallow blade bottom are used.
The rotary shaft for fixing both the rotary blade having a deep rotary blade and the rotary rotary blade having a shallow rotary blade is only the rotary shaft on the side into which the used paper is fed. A circumferential groove is formed on one of an inner circumferential surface and an outer circumferential surface of the outer ring and the inner ring that face each other, and a ridge-shaped circumferential protrusion is formed on the other, claim. According to a fourth aspect of the present invention, a plurality of rotary blades are fixed to a pair of rotary shafts which are arranged substantially parallel to each other and are driven in opposite directions to each other, and the other rotary blade is provided between one rotary blade. Is located,
In a used paper processing apparatus provided with a winding prevention ring in a state of being loosely fitted to the rotation shaft between adjacent rotary blades on each rotation shaft, a plurality of the winding prevention rings are provided by overlapping in the radial direction, The invention according to claim 5 is characterized by comprising an outer ring and at least one inner ring. The invention according to claim 3 or 4 is characterized in that the inner ring is formed of a soft material. According to a sixth aspect of the present invention, a plurality of rotary blades are respectively fixed to a pair of rotary shafts which are arranged substantially parallel to each other and are driven in opposite directions to each other, and the other rotary blade is provided between one rotary blade. In a waste paper processing apparatus in which a fixed-rate feed member is arranged between adjacent rotary blades outside at least one of the rotary shafts of the pair of rotary shafts. rotation when projected to the axis of rotation perpendicular to the plane Scan for quantitative surface with distance and is provided successively smaller quantitative surface along the rotating direction of the rotary blade
A topper section is provided, and the used paper contacts the stopper section.
That the angles of the plane, with respect to a straight line passing through the axis of the rotary blade, strike
The tip end is closer to the direction of rotation of the rotary blade than the base end of the lid
Characterized in that set so as to be located, the configuration of the invention according to claim 7, each a plurality of rotary blades on a pair of rotary shafts which are arranged substantially parallel to each other are driven in the opposite direction to each other 's The other rotating blade is positioned between one rotating blade and the other, and a substantially disk-shaped pressing bracket for pressing the used waste paper toward the rotating blade is placed between the adjacent rotating blades. In the waste paper processing apparatus, each of which is disposed, and is substantially parallel to the rotation axis and swingably supports the pressing metal through a support shaft inserted through the insertion hole at an eccentric position of the pressing metal, the through-hole is provided. The support shaft is loosely fitted.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. In this embodiment, since a part of the conventional used paper processing apparatus is improved, the same parts as those in the related art are denoted by the same reference numerals, and description thereof will be omitted. Only different parts will be described.

FIG. 1 shows the configuration of a used paper processing apparatus according to the present invention. As shown in the figure, two types of rotary blades 1 and 2 are fixed at equal intervals to the rotary shaft 52 of the pair of rotary shafts 51 and 52 on the side where the waste paper 3 is inserted. The rotary blade 1 is formed with a shallow blade 1a, while the rotary blade 2 is formed with a deep blade 2a, and one rotary blade 1 and two rotary blades 2 are alternately arranged. Have been. As the rotary blade 1 having the blade 1a having a shallow blade bottom, the rotary blade 1 described above with reference to FIGS.
The one shown in (c) can be used. As shown in FIG. 3, only the rotary blade 2 having the deep blade 2a is fixed to the other rotary shaft 51.

Between the rotary blades 1 and 2 or between the rotary blades 2 on the rotary shafts 51 and 52, a winding prevention ring 4 is loosely fitted to the rotary shafts 51 and 52 as shown in FIG. It is provided. As the winding prevention ring 4, an inner ring 5 having a small inner and outer diameter and an outer ring 6 having a large inner and outer diameter are superposed in the radial direction. A gap is also formed between the inner ring 5 and the outer ring 6. The inner ring 5 is used to prevent the generation of noise.
A soft organic material is used as a material for the above.

In addition, in order to further reduce the generation of noise, one of the outer circumferential surface and the inner circumferential surface of the outer ring and the inner ring that face each other has a V-shape or U-shape as shown in FIG. It is also possible to form a circumferential groove in the shape of a letter, and to form a ridge-shaped circumferential projection having a triangular or quadrangular cross section on the other. In this case, since the area of the colliding portion in the outer ring and the inner ring is small, the sound of collision between the outer ring and the inner ring can be reduced.

Next, the fixed amount feeding member will be described. Conventionally, when processing thick paper as waste paper, there has been a problem that the leading end of the waste paper is caught by the base end of the round bar and stagnates. In order to solve this, as shown in FIG. 4, a fixed amount feeding member 67 disposed above the rotary blades 1 and 2 on the used paper input side is provided with an interval between the rotary blades 67 along the rotation direction of the rotary blades 1 and 2. Are formed, and the stopper portions 8a, 8b, 8c having small protrusion dimensions are formed, and the straight lines passing through the axis of the rotary blades 1, 2 and the stopper portions 8a, 8b, 8 are formed.
The angles between c and the left side surface are acute angles θ ₁ , θ ₂ , θ ₃ ,
It suffices that θ ₁ ≦ θ ₂ ≦ θ ₃ .

If a fixed amount of used paper can be supplied only by the stopper 8a, the stoppers 8b and 8c become unnecessary. However, as shown in FIG. 5, the leading end of the overlapping used paper 3 is pressed against the rotary blades 1 and 2 as shown in FIG. Therefore, the blades of the rotary blades 1 and 2 are cut into the lower waste paper 3, and the waste paper 3 of a predetermined supply amount or more determined by the distance between the stopper 8 a and the outer peripheral surfaces of the rotary blades 1 and 2 passes through the stopper 8 a at a time. In some cases.

For this reason, in this embodiment, as shown in FIGS. 6 to 8, the substantially circular fixed surface 7 intersects the outer peripheral surfaces of the rotary blades 1 and 2, and the end of the fixed surface 7 is Is set so that it can enter the inside of the outer peripheral surface. FIGS. 6 and 7 show stoppers 8a, 8b and 8c provided. FIG. 8 shows stoppers 8a and 8b provided. FIG. 9 shows only a stopper 8a and an arc-shaped fixed surface. The end of 7 is located outside the outer peripheral surfaces of the rotary blades 1 and 2. When fixing the fixed amount feeding member 67 to the frame 56 via the bolt 68 as shown in FIG. 11, by appropriately interposing an elastic member such as a liner or rubber and adjusting the tightening condition of the upper and lower bolts 68, Fine adjustment can be performed such that the lower right part of the fixed amount surface 7 of the fixed amount feeding member 67 approaches or separates from the outer peripheral surfaces of the rotary blades 1 and 2 by changing the mounting angle of the fixed amount feeding member 67.

As shown in FIG. 10, a pair of pressing fittings 9 are attached to the fixed amount feeding member 67. As shown in the figure, a circumferential groove 11 is provided at an intermediate portion in the length direction of the cylindrical support cylinder 10.
The portion of the circumferential groove 11 of the support cylinder 10 is fitted into a notch 12 formed at the upper end of the fixed amount feeding member 67 also shown in FIG. Pins 13 are fitted into both ends of the support cylinder 10, respectively, and are fixed via set screws 14. Each pin 13 has a pipe 15 made of a soft organic material.
Is fitted, and a disc-shaped pressing metal fitting 9 having an insertion hole 16 having an inner diameter approximately twice as large as the outer diameter of the pipe 15 is attached to the insertion hole 16 in a state where the pipe 15 is loosely fitted. . Washers 17 are provided on both sides of the press fitting 9 to prevent the press fitting 9 from coming off the pipe 15.

Next, the operation of the used paper processing apparatus will be described. When the used paper 3 is put on the rotating blades 1 and 2 of the rotating shafts 51 and 52 above the rotating shaft 52, the rotating blade 1 has a shallow blade 1a and the rotating blade 2 has a blade 2a having a shallow bottom. Because of the depth, as shown in FIG. 2, the leading end of the used paper 3 is regulated by the shallow blade 1a and cannot reach the bottom of the deep blade 2a. For this reason, even if the used papers 3 are fed with the leading ends aligned, a large amount of used papers 3 will not be caught between the rotary blade and the stopper at one time and will not cause an impact. Further, unlike the case where only the rotary blade having a blade with a shallow blade bottom is used, the used paper is crushed without simply forming a perforated hole. In other words, the respective disadvantages of the rotary blade 1 having the shallow blade 1a and the rotary blade 2 having the deep blade 2a are mutually captured, so that the shallow blade prevents impact and the deep blade appropriately crushes. Only the advantages remain.

The used paper is supplied by rotating blades 1 and 2 shown in FIG.
And press fitting 9. Since the pipe 15 is loosely fitted in the insertion hole 16, the press fitting 9 can escape upward when a large amount of used paper is supplied at the same time. For this reason, the pressing fitting 9 does not receive a large impact unlike the conventional case. The pressing metal 9 drops after escaping upward and collides with the pipe 15, but since the pipe 15 is formed of a soft organic material, the sound of the collision sound is extremely small.

The constant-rate feeding member 67 has stoppers 8a, 8b, 8c or stoppers 8a, 8b as shown in FIGS. 6, 7, and 8, and the constant-quantity surface 7 is the outer peripheral surface of the rotary blades 1, 2. When a dozen or more pieces of waste paper are inserted, the leading end of the lower waste paper precedes the leading end of the upper waste paper in a stepwise manner along the fixed amount surface 7 of the fixed amount feeding member 67 when the used paper is inserted. And the paper is transported in order from the lower waste paper. When thick and hard waste paper such as a postcard or business card is inserted, the angle between the straight line passing through the axis of the rotary blades 1 and 2 and the left side surface of the stopper portion 8a is an acute angle. There is no stagnation caused by being caught by the stopper portion 8a. In other words, hard waste paper such as postcards and PPC
(Copy) Thin and soft waste paper such as paper can be efficiently crushed by the same waste paper processing apparatus.

When processing particularly thick or hard paper as waste paper, as shown in FIG. 9, a fixed amount feeding member 67 having only a stopper portion 8a is provided.
So that it is located outside the outer peripheral surface of Since the leading end of the thick paper is hard to bend, the leading end of the waste paper 3 comes into contact with the fixed surface 7 as shown in FIG. Therefore, when crushing hard waste paper, the waste paper is properly transported toward the catching portion even if there is only one stopper portion.

In addition, PPC paper has a thickness of 0.08 m.
m, which is thin, it is desirable that the gap between the fixed amount surface 7 of the fixed amount feeding member 67 and the outer peripheral surfaces of the rotary blades 1 and 2 can be finely adjusted in units of 0.1 mm. This fine adjustment is performed by compressing the elastic member between the frame and the fixed-rate feeding member by tightening the bolt as described above.

In order to prevent waste paper from being jammed between the rotary blades during crushing, a winding prevention ring 4 is provided as shown in FIG. In the present invention, since the winding prevention ring 4 is constituted by the inner ring 5 and the outer ring 6, the function of preventing the winding of the used paper by the outer ring 6 is not impaired, and the outer ring 6 collides with the rotating shafts 51 and 52. The resulting collision noise is mitigated by the presence of the inner ring 5. And since the material of the inner ring 5 is a soft organic material, the impact noise is further reduced. In addition, the winding prevention ring 4 and the rotating shaft 5
The amount of paper chips and paper dust that enter the space between the first and second sheets is greatly reduced.

In this embodiment, the horizontal axis type waste paper processing apparatus in which the rotation axis is arranged horizontally has been described. However, the present invention can be applied to a vertical axis type waste paper processing apparatus. In this case, urging means for urging the pressing fitting in the horizontal direction is required. Further, in a large-sized waste paper processing apparatus, the number of inner rings is increased to triple or quadruple in the radial direction to further reduce noise and prevent paper powder from entering the inner ring. be able to.

[0033]

As can be seen from the above description, according to the used paper processing apparatus according to the first and second aspects, both the rotary blade having a deep and a shallow rotary blade are fixed to the rotary shaft. Both the disadvantages of the rotary blade, that the impact is caused by the tip of the waste paper being caught between the rotary blade and the stopper, and that only a perforated hole is formed during crushing, are eliminated. However, only the advantage that the transfer and the crushing of the used paper are performed smoothly remains.

According to the used paper processing apparatus of the third to fifth aspects, since the plurality of winding prevention rings are superposed in the radial direction, the inner peripheral surface of the oscillating outer ring directly collides with the rotating shaft. Without hitting the inner ring, noise generation is reduced.

According to the used paper processing apparatus of the fourth aspect,
A circumferential groove is formed on one of the inner circumferential surface and the outer circumferential surface facing each other in the outer ring and the inner ring, and a ridge-shaped circumferential protrusion is formed on the other, so that the outer ring and the inner ring The noise due to the collision can be reduced.

According to the used paper processing apparatus of the fifth aspect,
Since the inner ring is formed of a soft material, the impact when the outer ring collides with the inner ring is reduced, and the generation of noise is further reduced.

According to the used paper processing apparatus of claim 6,
Stopper Rutotomoni quantify surface provided quantitative surface where the distance between the rotary blade and the quantitative feed member is sequentially reduced along the direction of rotation
Part of the stopper part,
Adjust the angle to the straight line passing through the axis of the rotary
The tip is located closer to the direction of rotation of the rotary blade than the base
As a result , thick and hard waste paper and thin and weak waste paper can be smoothly processed by the same waste paper processing apparatus.

According to the used paper processing apparatus of claim 7,
Since the support shaft was loosely fitted into the insertion hole of the press fitting, even if a large amount of waste paper was put in between the rotary blade and the press fitting at the same time, the press fitting could be lifted upward and easily escaped. It does not generate a large impact unlike the case of

[Brief description of the drawings]

FIG. 1 relates to an embodiment of a used paper processing apparatus according to the present invention;
FIG. 3 is a configuration diagram showing a mounted state of a rotary blade.

FIG. 2 relates to an embodiment of a used paper processing apparatus according to the present invention,
FIG.

3 (a) is a plan view and FIG. 3 (b) is a plan view of a waste paper processing apparatus according to an embodiment of the present invention.
AA arrow view of FIG.

FIG. 4 is an explanatory view showing an improvement plan of a quantitative member in the embodiment of the used paper processing apparatus according to the present invention.

FIG. 5 relates to an embodiment of a used paper processing apparatus according to the present invention,
(A) is an explanatory view of the operation of the improvement plan of the quantitative member, and (b) is a left side view of (a).

FIG. 6 is a configuration diagram showing a first example of a quantitative member in an embodiment of a used paper processing apparatus according to the present invention.

FIG. 7 is a configuration diagram showing a second example of the quantitative member in the embodiment of the used paper processing apparatus according to the present invention.

FIG. 8 is a configuration diagram showing a third example of the quantitative member in the embodiment of the used paper processing apparatus according to the present invention.

FIG. 9 is a configuration diagram showing a fourth example of the quantitative member in the embodiment of the used paper processing apparatus according to the present invention.

10A and 10B relate to a pressing member in an embodiment of a used paper processing apparatus according to the present invention, wherein FIG. 10A is a plan view, and FIG.

11 (a) is a plan view and FIG. 11 (b) is a front view of a conventional waste paper processing apparatus.

FIG. 12 is a cross-sectional view showing types of a winding prevention ring in a conventional used paper processing apparatus.

FIG. 13 is an explanatory diagram showing a relationship between rotary blades in a conventional used paper processing apparatus.

FIG. 14 is a front view of a rotary blade having a shallow blade bottom in a conventional used paper processing apparatus.

FIG. 15 is an operation explanatory view of a rotary blade having a deep blade bottom in a conventional used paper processing apparatus.

FIG. 16 is an operation explanatory view of a rotary blade having a deep blade bottom in a conventional used paper processing apparatus.

17 (a) is a plan view and FIG. 17 (b) is a front view of a pressing member in a conventional used paper processing apparatus.

FIG. 18 is an explanatory diagram showing a defect when crushing hard waste paper in a conventional waste paper processing apparatus.

[Explanation of symbols]

 1, 2 ... rotating blades 1a, 2a ... blades 4 ... anti-winding ring 5 ... inner ring 6 ... outer ring 7 ... fixed surface 8a-8c ... stopper 9 ... pressing metal 13 ... pin 15 ... pipe 16 ... insertion hole 51 , 52 ... Rotating shaft 67 ... Fixed amount feeding member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B02C 18/00-18/44 D21B 1/08-1/10

Claims (7)

(57) [Claims] 1. A plurality of rotary blades are respectively fixed to a pair of rotary shafts arranged substantially parallel to each other and driven in opposite directions to each other, and the other rotary blade is positioned between one rotary blade. In such a used paper processing apparatus, as a rotary blade fixed to at least one of a pair of rotary shafts, both a rotary blade with a deep bottom and a rotary blade with a shallow bottom are used. Waste paper processing apparatus characterized by the following. 2. The used paper processing apparatus according to claim 1, wherein the rotary shaft for fixing both the rotary blade having the deep and the shallow rotary blades is only the rotary shaft on the side where the used paper is fed. . 3. A plurality of rotary blades are respectively fixed to a pair of rotary shafts arranged substantially parallel to each other and driven in opposite directions to each other, and the other rotary blade is positioned between one rotary blade. In a waste paper processing apparatus provided with an anti-winding ring in a state of being loosely fitted to a rotary shaft between adjacent rotary blades of each rotary shaft, a plurality of the anti-winding rings are stacked in a radial direction. A waste paper processing apparatus characterized by comprising an outer ring and at least one inner ring. 4. A circumferential groove is formed on one of an inner circumferential surface and an outer circumferential surface of an outer ring and an inner ring which face each other, and a ridge-shaped circumferential projection is formed on the other. 4. The used paper processing apparatus according to 3. 5. The used paper processing apparatus according to claim 3, wherein the inner ring is formed of a soft material. 6. A plurality of rotary blades are respectively fixed to a pair of rotary shafts arranged substantially parallel to each other and driven in opposite directions, and the other rotary blade is located between one rotary blade. As described above, in a waste paper processing apparatus in which a fixed-rate feeding member is arranged between adjacent rotary blades outside at least one of the rotary shafts of the pair of rotary shafts, A fixed surface is provided in which the distance from the rotary blade when projected onto a perpendicular surface is gradually reduced along the rotation direction of the rotary blade, and a stopper is provided on the fixed surface.
Provided, the angle of the contact surface of the used paper in the stopper portion
And with respect to a straight line passing through the axial center of the rotary blade, the stopper portion of the base
The tip is located closer to the rotating direction of the rotary blade than the end
Waste paper processing apparatus characterized by the following settings . 7. A plurality of rotary blades are respectively fixed to a pair of rotary shafts arranged substantially parallel to each other and driven in opposite directions to each other, and the other rotary blade is located between one rotary blade. In such a manner, a substantially disk-shaped pressing metal member for pressing the used waste paper toward the rotary blade is arranged between adjacent rotary blades, and is substantially parallel to the rotation axis and the pressing metal member is eccentric. What is claimed is: 1. A used paper processing apparatus in which a press fitting is swingably supported via a support shaft inserted through an insertion hole at a position, wherein the support shaft is loosely fitted into the insertion hole.