JP2001259460A - Shreder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mechanism in which the protection and elimination of a bridge phenomenon are realized in a shreder which compresses paper cutting waste obtained by cutting a unnecessary paper sheet or the like. SOLUTION: The shreder is provided with a cutting part for cutting out a sheet of paper, a hopper 2 for storing paper cutting waste cut-out temporarily, a transport device 8 for transporting cutting waste from the bottom side of the hopper to a compression equipment, the compression equipment for compressing the paper cutting waste sent by the transport device, and a helping member 44 for helping movement of the paper cutting waste which moves to the hopper and is temporarily housed in the hopper at the transport device side of the bottom of the hopper. The paper cutting waste piled up in the hopper is dropped on the transport mechanism by approaching and separating the helping member from a reference position to the forward limit position with respect to the transport mechanism installed in the lower part of the hopper, and thus the bridge phenomenon is dissolved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shredder for cutting unnecessary paper and the like, compressing the processed paper cutting waste and compactly storing the same.

[0002]

2. Description of the Related Art Conventionally, a shredder has been used as means for cutting unnecessary paper. The shredder is mainly provided in an upper slot for feeding unnecessary paper, a cutter for cutting the inserted unnecessary paper, and a storage unit for storing paper cutting chips cut in several millimeters by the cutter. It is configured separately. The paper cuttings cut by the cutter naturally fall into the lower storage section in the shredder and are sequentially deposited, and each time the storage section is full of naturally dropped paper cuttings, the paper cutting waste is taken out of the storage section. To be discarded. Since the paper cuttings that fall naturally are deposited in a state where air is mixed in, the content of the volume is almost air even if it should be full. Since the storage area is a limited space area, the storage space is quickly filled with paper cuttings occupying most of the volume.

[0003]

As means for solving this problem,
The shredder equipped with a compression mechanism compresses the paper cuttings and removes the air mixed in.The compression rate is low. There is a disadvantage that the cutting of the paper must be temporarily interrupted and the compression and the cutting cannot be performed simultaneously.

A method of directly compressing paper cuttings using water or a solvent has also been tried, but it is difficult to control the water content, and there is a problem in dealing with decay, mold, odor and the like. Further, when compressing paper cuttings, a hydraulic cylinder may be used to increase the compression ratio. However, there is also a problem in that the speed required for compression is reduced, and oil leakage due to a failure in sealing the cylinder and the piston rod is also a problem. In addition, additional equipment for generating hydraulic pressure is required separately, which increases the size of the apparatus and increases installation costs.

[0005] The paper cuttings temporarily stored in the hopper are conveyed by a transport mechanism, for example, a spiral conveyor, installed in the lower part of the hopper in a direction perpendicular to the compression direction.
It is conveyed while being pushed into the compression cylinder. Normally, the paper cuttings fall naturally and are piled up sequentially from the lower part of the hopper. When the paper cuttings are conveyed by the spiral conveyor, the paper cuttings deposited on the lower part fall on the spiral conveyor by their own weight. However, a part of the piled paper cuttings does not fall naturally but stays in the hopper (bridge phenomenon), and the paper cuttings stays in a piled state on the accumulated paper cuttings. A phenomenon that the transfer cannot be performed may occur. The bridge phenomenon, which has occurred once, is hardly eliminated in the subsequent operation of the apparatus, and reduces the capacity (accumulation amount) stored in the hopper. As a result, supply of paper cutting waste to the compression cylinder And paper cutting waste blocks cannot be generated.

Therefore, the present invention does not use water or a solvent, enables simultaneous processing of compression and cutting, has a high compression ratio of paper cutting waste, a high compression speed, and has a problem of oil leakage. It is intended for shredders that do not work. Therefore, an object of the present invention is to provide a mechanism for preventing and eliminating a bridging phenomenon in a shredder for compressing paper cutting waste obtained by cutting unnecessary paper or the like.

[0007]

In order to solve the above-mentioned problems, a shredder of the present invention comprises a cutting section for cutting paper, and a hopper for temporarily storing the cut paper cuttings. A conveying device for conveying the paper cuttings from the bottom side of the hopper to the compression device, a compression device for compressing the paper cuttings sent by the conveying device, and a moving device for the hopper and temporarily storing it in the hopper. And an assisting member for assisting the moved paper cutting waste to move to the transfer device side of the bottom of the hopper.

[0008] As a preferred example, the transporting device is a spiral conveyor which is installed below the hopper in a direction perpendicular to the compression direction and transports temporarily stored paper cuttings while extruding them into a compression cylinder. .

The hopper has a substantially inverted triangular cross section orthogonal to the axial direction of the spiral conveyor and is parallel to the axial direction of the spiral conveyor so that paper cuttings are easily deposited on the spiral conveyor located at the bottom of the hopper. The cross-sectional shape is substantially inverted trapezoidal. The assisting member (also referred to as a bridge eliminating member in the sense of breaking or eliminating a bridge of paper cutting waste) preferably descends obliquely along the inner wall of the hopper inclined toward the transport device. To forcibly move the paper cuttings toward the transport device, or to break the bridge phenomenon of the paper cuttings generated in the hopper.

The assisting member is driven forward so as to obliquely descend from a reference position along the inner wall of the hopper inclined downward toward the transfer device, and rises obliquely upward so as to further advance from its lower limit. Or, it is raised upward from the lower limit, and further driven backward so as to retreat and return to the reference position. Then, in the course of the circular movement, the paper cutting waste is forcibly moved to the transport device side,
Alternatively, the bridge phenomenon of paper cutting waste generated in the hopper is destroyed.

The driving mechanism of the assisting member includes a base member which is reciprocally driven to advance and retreat at a predetermined height with respect to the hopper. The assisting member is connected to the base member so as to move together with the base member in the forward and backward directions and movably in the elevating direction, and further assists the assisting member in accordance with the movement of the base member in the forward direction. A cam device is provided for providing a movement locus such that the member moves forward and downward with respect to the base member.

A pressing member for moving in a direction intersecting the conveying direction of the conveying device and compressing the paper cutting chips is provided so as to reciprocate, and a pressing member driving device for reciprocating the pressing member is provided with the paper cutting device. The waste is reciprocated one or more times to complete the compression. The pressing member driving device is connected to the assisting member via the pressing member or another member, and the driving of the pressing member driving device causes the pressing member to move and the assisting member to move. As a preferred example, the pressing member driving device includes a hollow rotating shaft that is rotated by a compression motor, a toggle shaft that is screwed to the rotating shaft with the axial direction being the vertical direction, and a toggle shaft that moves up and down. The link is formed by a link whose upper end is loosely fitted to a central pivot, and a toggle mechanism that connects the link to the rear of the compression rod, so that the pressing member can freely move into and out of the compression chamber.

The driving mechanism of the assisting member includes a base member reciprocally driven to advance and retreat at a predetermined height with respect to the hopper, and the assisting member is moved forward and backward with respect to the base member. An urging member is connected between the assisting member and the base member so as to move with the base member in the direction and movably in the elevating direction, and to constantly urge the assisting member in the ascending direction. Is provided. Further, there is provided a cam device for providing a movement locus for the assisting member to move forward and downward with respect to the base member in accordance with the movement of the base member in the forward direction. By the combination of the movements, the assisting member is driven forward so as to descend obliquely from the reference position along the inner wall of the hopper inclined downward toward the transfer device.

[0014] The cam device provides a movement locus so that the assisting member moves forward and downward with respect to the base member in accordance with the movement of the base member in the advancing direction, and obliquely moves upward so as to further advance from its lower limit. Is given to the moving locus to be raised.

That is, the preferred form of the motion trajectory is
When the pressing member moves forward, the assisting member is moved forward while being lowered toward the spiral conveyor, and when the pressing member reaches the compression limit in the compression chamber, the assisting member is moved upward at the forward limit position, and the pressing member moves backward. The assisting member is retracted to the retreat limit position. This assisting member is composed of a base member installed substantially in parallel with the axial direction of the spiral conveyor and substantially over the entire width of the bottom of the hopper. This base member is preferably installed in a plurality of louvers at arbitrary intervals along the slope shape of the bottom of the hopper, when approaching the spiral conveyor, or when moving upward after approaching the spiral conveyor. Then, the bridge phenomenon of the paper cutting waste generated in the hopper is destroyed and dropped above the spiral conveyor.

Therefore, even if a part of the piled paper cuttings does not fall naturally and the bridge phenomenon that stays in the hopper occurs, the assisting member composed of the base member installed in a louver shape is used. The staying paper cuttings can be destroyed to eliminate the bridge phenomenon. Further, even if the bridging phenomenon does not occur, the assisting member intervenes above the spiral conveyer and drops paper cuttings, so that the bridging phenomenon can be prevented. In particular, if the assisting member is moved closer to or away from the spiral conveyor along the slope shape of the bottom of the hopper, the bridging phenomenon can be eliminated more efficiently, and paper cuttings can be dropped onto the spiral conveyor. it can.

The locus of motion imparted to the assisting member is realized by a cam follower in contact with a cam device having at least a downwardly sloped surface directed toward a transport mechanism installed at a lower portion of the hopper. . Further, the cam device is attached to an upper portion of an inner wall of the hopper so as to prevent paper cuttings stored in the hopper from being interposed between the cam device and the cam follower, away from a transport mechanism provided at a lower portion of the hopper. .

Further, as a preferred example, the compression cylinder is
Both ends in the compression direction are open, and are movable in the compression direction. At the time of compression, the paper is cut by the compression rod that closes one end of the opening in the compression direction by contacting the side wall and advances from the other end. Compresses waste.

As a preferred example, the discharge mechanism is such that a compression cylinder having both ends opened in the compression direction is separated from the side wall in the direction of the compression rod, which stands after the compression cylinder and retracts in the compression cylinder. In the course of moving with the block, the paper cutting waste block is brought into contact with the front surface of the compression rod, and is dropped and discharged from the space between the rear side of the compression cylinder and the storage space.

While the paper cutting waste is being conveyed to the compression cylinder by the spiral conveyor, new paper can be cut by the cutter and temporarily stored in the hopper. That is, since the spiral conveyor extrudes spirally from the detected paper cuttings by rotation of the shaft, a gap of only the extruded paper cuttings is generated in the hopper, and the newly cut paper cuttings are formed. The waste can be stored.

At this time, if the processing speed at which the paper inserted from the insertion slot is cut by the cutter and the speed at which the paper cutting chips are compressed in the compression cylinder do not follow, the processing speed at which the paper is cut is determined by the paper cutting speed. Even if the processing speed for compressing the debris is exceeded, the cutting process can be continued until the paper cutting debris is full in the hopper, and the processing performance as a shredder can be maintained.

Further, when compressing the paper cutting waste, when the compression mechanism is constructed by connecting the rear part of the compression rod which advances and retreats in the compression cylinder to a toggle mechanism, the compression motor is driven to compress the compression rod. By moving it forward in the direction, it is possible to increase the compression ratio of the paper cuttings in the compression cylinder and increase the compression speed. After the paper cutting block is formed by compression, the compression cylinder is separated from the side wall, and the paper cutting block is dropped into the storage portion from the space generated between the side wall and the compression cylinder, so that the discharge mechanism can be simplified.

Furthermore, according to the above shredder, since no water or solvent is used, there is no problem of moisture control, and no problems such as spoilage, mold, odor and the like naturally occur. In addition, since no hydraulic cylinder is used, no oil leakage occurs, no additional equipment such as a hydraulic circuit is required, and the apparatus can be simplified.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the embodiments shown in the drawings. In FIG. 1, the shredder of this embodiment has a main body case 1 formed in a rectangular parallelepiped shape, a so-called box shape as a whole, a cutting mechanism (not shown) installed in the main body case 1, and a main body case 1. , A hopper 2, a compression mechanism 3, a storage section 4, and the like are respectively installed.

At the upper part of the main body case 1, there is provided an insertion slot 5 for inserting unnecessary paper such as stationery and documents. The paper inserted from the insertion slot 5 is cut into small pieces of about several mm by a known cutting mechanism in which a number of cutters (not shown) are attached to a cutter shaft (not shown). The paper cutting waste 6 cut by the cutting mechanism falls naturally and is temporarily stored in the hopper 2.

As shown in FIG. 1, the hopper 2 has an upper portion opened at least corresponding to the length of the cutting mechanism, and has a substantially inverted trapezoidal side cross section and a substantially inverted front cross section. It is formed in a triangular shape. The hopper 2 is attached adjacent to the side of the main body case 1,
Spiral conveyor 8 with screw 7 mounted in a spiral
Are installed in the depth direction of the main body case 1. One end of a shaft portion 9 of the spiral conveyor 8 (a rear portion in the depth direction of the main body case 1) protrudes from a lower opening of the hopper 2 and is attached to a spiral conveyor motor 10.

On the other hand, four guides 12 are laid in parallel in a direction perpendicular to the axial direction of the spiral conveyor 8 within the space between the support frames 11 on the other end side of the shaft portion 9. The compression cylinder 13 is formed of, for example, a rectangular cylindrical body, and four corners 14 of the outer frame are supported by being inserted into the four guides 12. The side of the compression cylinder 13 facing the lower part of the hopper 2 is opened and communicates with the lower part of the hopper 2. Further, both ends in the compression direction of the compression cylinder 13 are open on the entire surface.
One opening of the compression cylinder 13 is normally in contact with the side wall 15 and is closed. Also, from the other opening of the compression cylinder 13,
A compression rod 16 inserted and supported by the book guide 12 can be moved forward and backward by a toggle mechanism 17.

One embodiment of the toggle mechanism 17 is shown in FIG.
This will be described with reference to FIGS. A compression motor 19 is mounted on a frame 18 provided on the opposite side of the spiral conveyor 8 in a reverse direction. At a position close to the compression motor 19, a hollow rotary shaft 20 is supported via a bearing 21 installed on the underframe 18. A chain sprocket or pulley 22 of the compression motor 19;
A chain or belt 24 is wound around the chain sprocket or pulley 23 of the rotating shaft 20, and the rotating shaft 2
0 follows the drive of the compression motor 19. Rotary axis 2
A receiving portion 25 having a female screw portion is attached to the upper end of 0, and a toggle shaft 26 having a male screw portion formed on the outer periphery is screwed to the receiving portion 25 with the axial direction being the vertical direction. . On the other hand, a pair of receiving members 27 are attached to the left and right sides of the rear part of the compression rod 16 and the side wall 15 located on the opposite side of the compression rod 16. This pair of receivers 2
7, one end of a link 28, which is a pair of upper and lower and left and right sides, is pivotally supported via a mounting shaft 29. Each link 28
Is pivotally supported at approximately the center by a coupling shaft 30 to form a four-bar link. The upper end of the toggle shaft 26 is connected to an upper connecting shaft 30 forming a four-bar link.
Is loosely fitted to the support tool 31 inserted through the support member 31. Therefore, if the rotation shaft 20 is rotated forward, the toggle shaft 26 moves downward with the female screw portion as a base point. At this time, since the upper end of the toggle shaft 26 is loosely fitted to the support 31, the link 28 is contracted and closed by pulling down the upper coupling shaft 30, and the compression rod 16 is moved to the compression cylinder 13.
Go inside. Conversely, when the rotating shaft 20 is reversed, the toggle shaft 26 moves upward, the upper connecting shaft 30 is pushed up via the support 31 to expand the link 28, and the compression rod 16 is moved inside the compression cylinder 13. Retreat.

As shown in FIG. 5, a discharge motor 32 is provided on the support frame 11, and a chain wheel 34 attached to a drive shaft 33 of the motor 32 and a chain wheel attached to a driven shaft 35. The compression cylinder 13 is configured to be movable along the guide 12 via a mechanism such as a ball screw, a trapezoidal screw, or a rack and pinion (none of which is shown) that extends over a chain 37 between the compression cylinder 13 and the guide cylinder 12. .
The storage opening of the storage section 4 is a space formed when the compression cylinder 13 moves and separates from the side wall 15. The paper cutting waste block 38 compressed in the compression cylinder 13 from this storage opening is formed. Will fall.

As described above, the hopper 2 has a cross section substantially perpendicular to the axial direction of the spiral conveyor 8 so that the paper cuttings 6 easily fall onto the spiral conveyor 8 located at the bottom of the hopper 2. A triangular shape and a cross-sectional shape parallel to the axial direction of the spiral conveyor 8 are formed in a substantially inverted trapezoidal shape. Then, as shown in FIG. 7, the hopper 2 attaches a copying cam 40 having a triangular cross section orthogonal to the axial direction of the spiral conveyor 8 inside the wall portion 39 adjacent to the compression mechanism 3. This copying cam 4
0 is attached so that the upper side becomes the acute angle portion 40a,
A downward slope that is substantially parallel to the bottom slope of the hopper 2 is formed on the lower surface of the hopper 2 toward the spiral conveyor 8 installed below the hopper 2.

On the other hand, one end of a connecting plate 42 is attached to the relay plate 41 attached to the rear side of the compression rod 13, and this connecting plate 42 is in a state of straddling the upper surface of the adjacent wall portion 39 of the hopper 2. Has become. And this connecting plate 4
A supporting member 44 is attached to the torsion coil spring 43 suspended from the other end of the hopper 2 into the inside of the hopper 2, and a cam follower 45 that engages with the copying cam 40 from the supporting member 44.
Is rotatably projected. The assisting member 44 is provided on a frame 46 substantially parallel to the axial direction of the spiral conveyor 8 and substantially parallel to the bottom slope of the hopper 2 at an arbitrary interval along the slope shape of the bottom of the hopper 2 with a louver. It is constituted by a plurality of base members 47 installed in a shape.

In the retreat limit position and the upper limit position of the assisting member 44, the cam follower 45 faces the acute angle portion 40a above the copying cam 40. When the assisting member 44 reaches the forward limit position and the lower limit position, the lower corner portion 40b below the copying cam 40 is moved.
Is in contact with the cam follower 45. The movement trajectory of the cam follower 45 moving in contact with the copying cam 40 is such that the compression rod 16 moves from the standby position to the compression cylinder 13.
Generated by moving in the compression direction. During this movement, the connecting plate 42 is in contact with the upper surface of the wall portion 39 of the hopper 2, so that a linear way (not shown) is laid on the upper surface of the wall portion 39, while the linear In some cases, a block (not shown) may be attached to facilitate the movement.

The paper inserted from the insertion slot 5 is cut by a known cutter of a cutting mechanism, and the cut paper waste 6 is temporarily transferred onto a spiral conveyor 8 installed at a lower portion in the hopper 2. It is stored sequentially. When a predetermined amount of paper cutting waste 6 is detected in the hopper 2 by the cutting waste detection sensor (not shown) as the paper is cut by the cutter, the spiral conveyor motor 10 rotates to drive the spiral conveyor 8. Let it. When the shaft 9 of the spiral conveyor 8 rotates, it is conveyed in a state where the paper cutting waste 6 deposited on the screw 7 at the tip end is spirally pushed into the compression cylinder 13.

The spiral conveyer motor 10 is provided with a torque fluctuation detector (not shown). Accordingly, with the continuous transport of the paper cutting waste 6, FIG.
As shown in (a), the inside of the compression cylinder 13 is
Is full, the torque fluctuation detector detects that the torque has fluctuated to a predetermined torque amount. Instead of this detection operation, the fact that the current has fluctuated to a predetermined value may be detected by a current fluctuation detector (not shown) connected in the middle of the wiring of the spiral conveyor motor 10. With these detection movements, the spiral conveyor motor 1
0 is stopped, and the conveyance of the paper cutting waste 6 into the compression conveyor 13 is stopped. At this time, in the hopper 2,
The supporting member 44 is balanced in the vertical direction by the torsion coil spring 43, that is, the cam follower 45 protruding from the supporting member 44 is moved by the copying cam 40.
Is located at a reference position facing the acute angle portion 40a.

Next, when the compression motor 19 is driven, the toggle mechanism 17 operates. That is,
If the rotation shaft 20 is rotated forward, the toggle shaft 26 moves downward with the female screw portion as a base point. At this time, the toggle shaft 2
6 is loosely fitted to the support 31, the link 28 is contracted and closed by pulling down the upper connecting shaft 30, and the compression rod 16 is guided by the four guides 12 and the compression cylinder 13. Start moving forward inside. On the way,
As shown in FIG. 8B, the paper cutting waste 6 that has been conveyed into the compression cylinder 13 is pressed by a compression rod 16 and is compressed in a space formed by the compression cylinder 13 and the side wall 15, and The cutting waste block 38 is formed.

When the compression rod 16 advances from the standby position in the compression direction by the operation of the toggle mechanism 17, the connecting plate 42 integrated with the relay plate 41 also advances in the same direction (almost horizontal direction). Accompanying this, the cam follower 4
5 rotates in contact with the lower surface of the copying cam 40 formed on the downward slope, and advances the assisting member 44 while lowering it from the reference position toward the spiral conveyor 8. Then, when the compression rod 13 reaches the compression limit in the compression cylinder 16, the cam follower 45 reaches the lower corner 40 b of the downward slope of the copying cam 40 and the assisting member 44.
To the forward limit and the descending limit. That is, the assisting member 44 reaches the position closest to the spiral conveyor 8. The cam follower 45 reaching the lower corner portion 40b of the copying cam 40 is brought into contact with the copying cam 40 by the elastic return of the torsion coil spring 43 and is pulled up to the upper corner portion 40c. Therefore, the assisting member 44 moves upward from the lower limit position.

As described above, the assisting member 44 advances in the hopper 2 while descending along the slope of the bottom toward the spiral conveyor 8, and moves upward at the limit of the advance. The base member 47 at the end and the base member 47 installed in a louver shape are connected to the spiral conveyor 8.
When approaching the spiral conveyor 8 and moving upward after approaching the spiral conveyor 8, the bridge phenomenon of the paper cutting waste 6 generated in the hopper 2 is destroyed,
And drop it up. Therefore, even if a part of the piled paper cuttings 6 does not fall naturally and the bridge phenomenon that stays in the hopper 2 occurs, the base member 4 at the tip end can be used.
The assisting member 44 composed of the base member 47 and the base member 47 disposed in a louver shape can break the staying paper cutting waste 6 and eliminate the bridging phenomenon. Even if the bridging phenomenon does not occur, the assisting member 44 intervenes above the spiral conveyor 8 and drops the paper cuttings 6, so that the bridging phenomenon can be prevented.

Next, when the compression rod 16 retreats from the compression limit position to the reference position, the cam follower 45 is disengaged from the engagement with the copying cam 40, and the assisting member 44 returns to the reference position. When the assisting member 44 is retracted to the reference position, the engagement of the cam follower 45 with the upper surface of the copying cam 40 may be restricted. That is,
When the compression rod 16 is retracted from the compression limit position to the standby position, the cam follower 45 is gradually brought into contact with the copying cam 40 having a gentle upward slope, and the sharp corner 4
Bring to 0a. When the cam follower 45 passes through the position of the acute angle portion 40a of the copying cam 40, the assisting member 44 retreats to the reference position. At this time,
The cam follower 45 is disengaged from the copying cam 40, and the cam follower 45 is
It is at the reference position facing 0a and is ready for the next work.

The compression motor 19 is provided with a torque fluctuation detector (not shown). Therefore, when the paper cutting waste 6 is compressed in the compression cylinder 13,
The torque fluctuation detector detects that the torque has changed to a predetermined torque amount. Instead of this detection operation, a change in the current value to a predetermined value may be detected by a current change detector (not shown) connected in the middle of the wiring of the compression motor 19. Along with these detection movements, the drive of the compression motor 19 is stopped, and the compression movement of the compression rod 16 in the compression cylinder 13 is stopped.

After the compression of the paper cutting waste 6 is completed, the compression rod 16
To release the compression force. For this reason, the toggle mechanism 17 is operated, and as shown in FIG. 9A, the compression rod 16 is slightly retracted using the guide 12 as a guide. That is, when the rotation shaft 20 is reversed by the compression motor 19, the toggle shaft 26 moves upward, the upper coupling shaft 30 is pushed up via the support 31, the link 28 is expanded, and the compression rod 16 is moved. The inside of the compression cylinder 13 is retracted.

Next, the discharge motor 32 is driven,
A mechanism such as a ball screw, a trapezoidal screw, or a rack and pinion (both not shown) is operated. Thus, the compression cylinder 13 is guided by the guide 12 to guide the side wall 1.
5 and moves in the direction of the compression rod 16 (anti-compression direction). During the movement of the compression cylinder 13, the paper cutting block 38 that has been moving together with the compression cylinder 13 comes into contact with the front surface of the compression rod 16 that has been retracted, and is stopped. Since the compression cylinder 13 continues to move thereafter, the paper cutting waste block 38 has no supporting portion at the lower end.
As shown in FIG. 2B, the compressed air drops from the rear portion of the compression cylinder 13 separated from the side wall 15 to the storage portion 4 and is discharged.

In order to discharge the paper cutting block 38, the compression rod 16 is released from the compression force applied to the compression rod 16 after the compression of the paper cutting waste 6, but the compression cylinder 13 is moved first. And then the compression rod 16
Even if the compressive force applied to is released, the paper cutting waste block 38 can be dropped into the storage section 4 and discharged in the same manner as described above. In any case, since the compression cylinder 13 and the compression rod 16 used for the compression are used for discharging the paper cutting waste block 38 in a different manner, the shredder can be made compact.

Further, the paper cutting waste 6 is transferred to a spiral conveyor 8.
While the paper is being conveyed to the compression cylinder 13, new paper can be cut by the cutter and temporarily stored in the hopper 2. That is, the spiral conveyor 8 is spirally extruded from the detected paper cuttings 6 by the rotation of the shaft 9, so that a gap of only the extruded paper cuttings 6 is generated in the hopper 2. The cut paper cutting waste 6 can be temporarily stored. At this time, if the processing speed for cutting the paper inserted from the insertion slot 5 by the cutter and the speed for compressing the paper cutting waste 6 in the compression cylinder 13 do not follow, the processing speed for cutting the paper is:
Even if the processing speed for compressing the paper cuttings 6 exceeds the processing speed, the cutting processing can be continued until the paper cuttings 6 become full in the hopper 2, and the processing capacity as a shredder can be maintained. .

Although the present invention has been described on the basis of paper cuttings of unnecessary paper, the present invention is not limited to this. It can be applied and applied to In addition, the assisting member of the present invention approaches and separates from the transport mechanism synchronously in conjunction with the advance and retreat of the compression rod. However, the assisting member is controlled to approach and separate periodically by independent driving. Is also possible. Further, the shape of the compression cylinder of the present invention has been described as a rectangular cylinder, but it is optional to change it to another form such as a cylinder.

The invention described above is referred to as A, and the invention A
And three inventions described below, invention B, invention C, invention D
It is also possible to combine at least one of the above into a new invention.

Invention B A compression chamber for accommodating the paper cuttings, a pressing member for moving the paper cuttings relative to the compression chamber in the compression chamber to compress the paper cuttings, and a compression member for compressing the pressing member in the compression chamber. A discharge port formed at an end on the side in the direction, and discharging the paper cutting waste block obtained by compressing the paper cutting waste from the compression chamber; and the pressing member in a state where the discharge opening is closed during the compression. And a pressure receiving member that allows the paper cutting waste block to be discharged from the discharge port at the time of discharge, and is formed on the inner surface of the compression chamber so as to gradually expand its cross section toward the discharge port. And a cut-off angle forming unit.

The draft angle formed in the distal end wall of the distal end portion of the compression chamber in the compression direction is equal to the opening of the distal end in the compression direction at least over a distance corresponding to the thickness of the paper cutting block compressed in the compression chamber. It is gently expanding toward the club.
Further, preferably, the draft angle formed in the distal end wall of the distal end portion in the compression direction of the compression chamber is such that when the paper cutting chips are compressed by the pressing member that advances from the opening at the other end in the compression chamber, the compression angle is reduced. The angle of inclination is such that paper cuttings do not fit into the gap formed between the pressing member during operation and the distal end wall of the distal end of the compression chamber.

Normally, the formed paper cutting block obtained by compressing the paper cutting chips acts to expand toward the tip wall of the compression chamber, and the reaction force is applied to the tip wall of the compression chamber.
When the paper cutting waste block is discharged out of the compression chamber, a load is generated between the paper cutting waste block and the distal end wall of the compression chamber. However, the tip wall of the compression chamber is formed with a draft angle (e.g., several degrees) gently expanding toward the opening at the tip in the compression direction.

Therefore, the compression reaction force of the compressed paper cutting waste block acts on the draft angle forming portion of the compression chamber,
A component force occurs in the direction of discharging the paper cutting waste block,
The load generated between the paper cutting waste block and the distal end wall of the compression chamber can be gradually reduced in the discharge direction. The draft angle forming portion is preferably formed over the entire length or half or more in the compression direction of the paper cutting waste block.

The outlet of the pressure chamber and the pressure receiving member are separated from each other in a direction parallel to the compression direction after the compression by the pressing member is completed. The paper cutting waste block pressed against the forming section is in a state capable of being discharged from the discharge port. Then, the force (discharge force) required for discharging the paper cutting waste block, for example, the driving force of a motor used for discharging the paper cutting waste block can be reduced, and the paper cutting waste block is lowered from the leading end wall of the compression chamber. Is discharged to

As an embodiment of the present invention B, the tip of the compression cylinder 13 in the compression direction, that is, the side wall 1
As shown in FIG. 10, the distal end wall on the side in contact with 5 faces the opening at the distal end in the compression direction over a distance corresponding to at least the thickness of the paper cutting waste block 38 compressed by the compression cylinder 13. A draft angle 48 (tapered portion) that is gently expanded is formed. Since the compression cylinder 13 is formed of a square cylindrical body, the draft angles 48 are formed on two opposing surfaces. The draft angle 48 formed in the distal end wall of the distal end portion of the compression cylinder 13 in the compression direction causes the paper cutting chips 6 to be compressed by the compression rod 16 that advances inside the compression cylinder 13 from the opening at the other end. When the compression rod 1 during compression operation
The cutting angle is set so that the paper cuttings 6 do not fit into the gap formed between the cutting cylinder 6 and the front end wall of the compression cylinder 13.

Then, the formed paper cutting block 38 formed by compressing the paper cutting waste 6 acts to expand toward the front end wall of the compression cylinder 13, and the reaction force is applied to the front end wall of the compression cylinder 13. Is added, and this paper cutting waste block 3
When the sheet 8 is discharged to the outside of the compression cylinder 13, a load is generated between the paper cutting waste block 38 and the end wall of the compression cylinder 13. However, if a draft angle 48 (e.g., several degrees) that is gently expanded toward the distal end opening in the compression direction is formed in the distal end wall of the compression cylinder 13, the paper cutting waste block 38 and the compression cylinder 13 The load generated between the front end wall and the front end wall is gradually reduced in the discharge direction. For this reason, the paper cutting waste block 38 has a small surface pressure, and is easily dropped from the opening at the end of the compression cylinder 13 by its own weight. Accordingly, the force (discharge force) required to discharge the paper cutting waste block 38, for example, the driving force of the discharge motor 32 can be reduced.

Invention C A spiral conveyer is provided for conveying the cut paper chips into a storage chamber for accommodating the paper chips. The spiral conveyor forms a main body of the spiral conveyor and has a spiral portion and is driven to rotate. The leading end of the spiral shaft is made to face the storage chamber through a predetermined opening, and the starting end of the spiral portion at the leading end of the spiral shaft rises from the center side of the spiral shaft to the outer peripheral side at a predetermined height. The spiral part is formed and further connected to the base end side of the spiral shaft, and the rising part forming the starting end of the spiral part of the spiral shaft is a reference perpendicular to the rotation direction for the conveyance of the spiral shaft. A curve (a reference line in the radial direction of the spiral axis) whose distance from the reference line gradually increases toward the outer periphery in a direction opposite to the rotation direction. Or a paper cutting waste conveying device characterized by being formed along a straight line.

Preferably, the rising portion forming the starting end of the spiral portion of the spiral shaft preferably has a reference line perpendicular to the rotation direction for the conveyance of the spiral shaft (a reference line in the radial direction of the spiral shaft). ) Is formed along a curve having a tangent to a straight line inclined in the opposite direction to the rotation direction. The spiral conveyor is for transporting the cut paper cuttings to a compression chamber for compressing the paper cuttings, and the tip of the spiral shaft faces the compression chamber through a predetermined opening. I have.

With the rotation of the shaft portion of the spiral conveyor, the paper cutting chips are conveyed to the compression chamber by a spiral portion (screw) formed on the spiral shaft. Then, as the paper cutting waste accumulates in the compression chamber as the conveyance progresses, the density of the paper cutting waste in the compression chamber gradually increases, and the cutting end of the screw attached to the main body of the spiral conveyor is accumulated. The debris will be pressed gradually.

However, the tip of the screw attached to the body of the spiral conveyor in the conveying direction,
That is, the rising portion of the screw tip is formed along a curve or a straight line in which the distance from the reference line gradually increases toward the outer peripheral side in the direction opposite to the rotation direction with respect to the reference line in the radial direction of the spiral shaft. Therefore, even if the density of the paper cuttings increases, the load of rotation of the shaft hardly occurs. That is, since the screw start portion of the screw tip is not in an angular state in which, for example, an iron plate spirally welded to the conveyor body is cut, even if compression occurs due to high density of paper cutting chips, the screw tip portion is compressed. The rotation of the shaft portion is allowed while the cut paper scraps abutted and pressed by the rising portions, so that a load is hardly generated when the paper scraps are conveyed.

As an embodiment of the invention C, a screw 7 attached to the main body of the spiral conveyor 8 is used.
Is formed at the leading end of the spiral portion at the leading end of the screw 7 in the transport direction, that is, at the leading end of the spiral portion at the leading end of the screw 7. As shown in FIG. 11, the rising portion 49 is related to a reference line perpendicular to the rotation direction of the spiral shaft (a reference line in the radial direction of the spiral shaft), and is away from the reference line in a direction opposite to the rotation direction. Are formed along a curve or a straight line that gradually increases toward the outer peripheral side.
That is, the spiral start portion at the tip of the screw 7 is formed as the above-described rising portion 49, instead of, for example, an angular state obtained by cutting an iron plate spirally welded to the conveyor 8 main body. Therefore, even if compression occurs due to the high density of the paper cuttings 6, rotation of the shaft 9 is allowed while the tip of the screw 7 presses the compressed paper cuttings 6 against the rising portion 49. As a result, a load is hardly generated when the paper cutting waste 6 is transported.

Therefore, the transport of the paper cuttings 6 by the spiral conveyor 8 proceeds, and the paper cuttings 6
3, the density of the paper cuttings 6 in the compression cylinder 13 gradually increases, and a rising portion 49 formed at the tip of the screw 7 attached to the main body of the spiral conveyor 8 is accumulated. The paper cutting waste 6 is gradually pressed. In this way, even if compression occurs due to the high density of the paper cuttings 6, the rotation of the shaft 9 is performed while the leading end portion of the screw 7 abuts and presses the compressed paper cuttings 6 by the rising portion 49. Will tolerate,
It is unlikely to become a load when the paper cutting waste 6 is transported.

Invention D A method of forming a paper cutting chip block by compressing paper cutting chips obtained by cutting paper, wherein at least one corner edge formed at a boundary between mutually adjacent surfaces of the paper cutting chip block. Characterized in that a chamfered portion is formed so as to reduce the corner of the corner along the edge of the paper cutting dust block.

A method of forming a paper cutting block by compressing paper cuttings obtained by cutting paper, supplying the paper cuttings to a compression chamber, and compressing the paper cuttings in one direction in the compression chamber. Along with one or more corners of a direction inclined at a predetermined angle or at least parallel to the compression direction, formed at a boundary between mutually adjacent surfaces of the paper cutting waste block,
A method for forming a paper cutting chip block of paper cutting chips, wherein a chamfered portion is formed so as to drop the corner of the corner.

An apparatus for forming a paper cutting block by compressing paper cuttings obtained by cutting paper, and compressing the paper cuttings inside the compression chamber and / or in the compression chamber. A chamfered portion is formed on the pressing surface of the pressing member to be operated, along one or more corners formed at the boundary between mutually adjacent surfaces of the paper cutting block after compression, so as to reduce the corners of the corners. An apparatus for compressing paper cutting waste, wherein a chamfering application portion for applying a cutting edge is formed.

An apparatus for forming a paper cutting block by compressing paper cutting chips obtained by cutting paper, and a compression chamber for accommodating the paper cutting chips, and a compression chamber that is fitted relatively movably in the compression direction. And a pressing member for compressing the paper cutting waste in the compression chamber, and an inner surface of the compression chamber is formed at a boundary between mutually adjacent surfaces of the paper cutting waste block after compression. Along with one or more corners extending parallel to the compression direction, a chamfering portion for forming a chamfered portion so as to reduce the corner of the corner is formed parallel to the compression direction, and the pressing member On the outer surface, a pressing-side corresponding surface corresponding to the chamfering application portion of the compression chamber is formed parallel to the compression direction, and the inner surface of the compression chamber and the outer surface of the pressing member have a cross-sectional shape perpendicular to the compression direction. Are paired with each other Compressor paper cutting scraps both characterized by fitting in.

The compression chamber for compressing the paper cuttings is made of, for example, a rectangular cylinder, and the corners of the inner peripheral wall in the direction orthogonal to the compression direction are not sharp, and the rectangular cylinders are adjacent to each other. Along the corner formed at the boundary between the two, the corner is formed so that the corner of the corner is dropped. That is, the compression chamber has a cross-sectional shape perpendicular to the compression direction, the corner of the inner peripheral wall thereof is formed in a corner-dropping shape, and the corner which is perpendicular to the compression direction of the pressing member that moves forward and backward in the compression chamber. Are also formed in the shape of a corner drop parallel to the compression direction.

As described above, the inner peripheral wall of the compression chamber and the pressing surface of the pressing member are formed with the chamfering portions for providing the chamfered portions so that the respective corners reduce the corners of the corners. I have. For this reason, the pressing member fits into the inner peripheral wall of the compression chamber and compresses the paper cutting debris. Parallel chamfers are formed. And
The chamfered portion of the paper cutting waste block can form not only a straight section perpendicular to the compression direction but also a curved section perpendicular to the compression direction. When the chamfered portion is formed in a curved shape, a cross section orthogonal to the compression direction may be curved outwardly or a cross section orthogonal to the compression direction may be slightly concave inward.

In this case, the chamfering portion formed on the inner peripheral wall of the compression chamber is such that, in a cross section orthogonal to the compression direction, the line connecting the boundaries between the surfaces in which the rectangular cylinders are adjacent to each other is linear or curved. (A cross section orthogonal to the compression direction is a curved shape that swells outward, or a cross section that is orthogonal to the compression direction is a curved shape that is slightly depressed inward). Also, to be fitted to the inner peripheral wall of the compression chamber and to be movable in the compression direction,
In the chamfering portion formed on the pressing surface of the pressing member, in a cross section orthogonal to the compression direction, a line connecting the boundaries between the surfaces in which the angular pressing members are adjacent to each other is formed in a straight line or a curved line.

Further, it is possible to form a chamfered portion at the front and rear peripheral portions in the compression direction of the paper cutting waste block.
For example, when forming a chamfer at the four peripheral edges on the front side in the compression direction of the paper cutting waste block, the chamfering portion is formed on the side wall surface which closes and closes the tip of the compression chamber. In this case, the chamfering portion is frame-shaped, that is, the outer edge protruding from the side wall is fitted in sliding contact with the inner peripheral wall of the distal end of the compression chamber, and the inner edge located inside the outer edge from the outer edge. Attach the formwork that is drawn into the corner drop shape.

On the other hand, in the case where a chamfered portion is formed on the peripheral edge on the rear side in the compression direction of the paper cutting waste block, a chamfered portion is formed on the pressing surface side of the pressing member which moves forward and backward in the compression direction in the compression chamber. I do. In this case, the chamfering portion is formed by drawing the four peripheral edges on the front side in the compression direction of the pressing member from the outside to the inside in a corner drop shape. According to this, the corner portions orthogonal to the compression direction of the paper cutting waste block after the compression molding and the four peripheral edges on the front and rear sides in the compression direction have no chamfered portions, and chamfered portions are formed.

Accordingly, even if the paper cutting waste block after molding has a substantially rectangular parallelepiped shape, its corner portion is chamfered, so that there is no squared portion. For this reason, when the paper cutting block compressed in the compression chamber is discharged to the storage section by its own weight, or when the paper cutting block is taken out from the storage section, the paper cutting block from the corner portion is difficult to handle. Scattering or chipping hardly occurs.
That is, the impact resistance of the paper cutting block is improved, and the paper cutting chips are less likely to be scattered around the block.

As an embodiment of the invention D, the compression cylinder 13 is formed of a rectangular cylinder, and the rectangular cylinder is formed along a corner formed at a boundary between adjacent surfaces. The chamfered portions 50 are formed by dropping the corners of the corners. That is, as shown in FIG.
Is an inner peripheral wall 51 having a cross-sectional shape orthogonal to the compression direction.
Are formed in a chamfered portion 50 in the shape of a chamfer that is parallel to the compression direction. A corner portion perpendicular to the compression direction of the compression rod 16 that advances and retreats in the compression cylinder 13 is also formed with a chamfered portion 50 in the shape of a chamfer in parallel with the compression direction so as to reduce the corner of the edge. are doing.
For this reason, the compression rod 16 fits into the inner peripheral wall 51 of the compression cylinder 13 and compresses the paper cutting waste 6, so that the compression cutting of the paper cutting waste block 38 after compression molding is performed at a corner portion orthogonal to the compression direction. As shown in FIG. 13, a chamfer 52 parallel to the compression direction is formed.

The chamfered portion 52 of the paper cutting waste block 38 has a cross section orthogonal to the compression direction having a linear shape 52a.
(See FIG. 14A.) It is also possible to form a cross section orthogonal to the compression direction in a curved shape.
That is, a chamfered portion 52b (see FIG. 14B) having a cross section orthogonal to the compression direction bulging outward or a chamfered portion 52c having a curved cross section perpendicular to the compression direction slightly inward (see FIG. 14B). 14 (c)).

In this case, the inner peripheral wall 51 of the compression cylinder 13
In the cross section orthogonal to the compression direction, the line connecting the boundaries between the adjacent rectangular cylinders is straight (see FIG. 12C) or curved (compression). A cross section perpendicular to the direction is formed as a curved shape bulging outward or a cross section perpendicular to the compression direction is formed as a curved shape slightly concave inward (not shown). The chamfering portion 50 formed on the pressing surface of the compression rod 16 is fitted in the inner peripheral wall 51 of the compression cylinder 13 so as to be movable in the compression direction.
The line connecting the boundaries between the surfaces where the angular compression rods 16 are adjacent to each other is formed in a straight line or a curved line (not shown).

Further, it is possible to form the chamfered portions 52 also at the four peripheral edges of the paper cutting waste block 38 on the front and rear sides in the compression direction. For example, as shown in FIG. 15, when the chamfered portions 52 are formed at the four peripheral edges on the front side in the compression direction of the paper cutting waste block 38, the chamfered portion is provided on the side wall 15 that contacts and closes the tip of the compression cylinder 13. Form 50. In this case, the chamfering portion 50 is formed of a frame 53 having a frame shape, that is, an outer edge portion 54 protruding from the side wall 15.
A form frame 53 formed by being drawn into the chamfering portion 50 from the outer edge portion 54 to the inner edge portion 55 located inside the outer peripheral portion 54 is attached.

On the other hand, when the chamfered portion 52 is formed at the four peripheral edges on the rear side in the compression direction of the paper cutting waste block 38,
A chamfering portion 50 is formed on the pressing surface side of the compression rod 16 that advances and retreats in the compression cylinder 13 in the compression direction. In this case, the chamfering portion 50 moves the four peripheral edges on the pressing surface side in the compression direction of the compression rod 16 from the outer side 56 to the inner side 5.
It is formed by drawing in a corner drop shape over 7. According to this, as shown in FIG. 15C, the corners orthogonal to the compression direction of the paper cutting waste block 38 after compression molding and the four peripheral edges on the front and rear sides in the compression direction are angular. However, the chamfered portions 52 are respectively formed.

The shape of the paper cutting waste block 38 is not limited to a rectangular parallelepiped, but may be any other shape such as a cylindrical shape or a pseudo-cylindrical shape. For example, when a cylindrical paper cutting waste block 38a is used, the compression cylinder 13 is formed into a cylindrical shape (not shown), and the compression rod 16 is moved forward and backward in the compression cylinder 13.
Is also disc-shaped (not shown). Then, a chamfering portion 50 is formed on the circumferential portion of the side wall 15 that closes the tip of the compression cylinder 13 in contact with and closes, while the circumferential portion on the pressing surface side in the compression direction of the compression rod 16 is angled from the outside to the inside. The chamfering portion 50 is drawn into the shape. According to this, as shown in FIG. 16, it is possible to form the chamfered portion 52d also on the front and rear circumferential edges in the compression direction of the paper cutting waste block 38a after compression molding.

The paper cutting waste blocks 38 and 38a after molding have no corners because their corners are chamfered. For this reason, when the paper cutting waste blocks 38, 38a compressed by the compression cylinder 13 are discharged to the storage part 4 by their own weight, or when the paper cutting waste blocks 38, 38a are taken out of the storage part 4, handling is difficult. In this case, scattering or chipping of the paper cutting waste 6 from the corner portion is less likely to occur. That is, the paper cutting waste blocks 38, 3
The impact resistance of 8a is improved, and the paper cuttings 6 are less likely to be scattered around.

The following are examples of combinations of the inventions A to D, just in case. 1. A + B A + C3. A + D4. B + C5. B + D6. C + D7. A + B + C8. A + C + D9. A + B + D10. B + C + D11. A + B + C + D

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire shredder of the present invention.

FIG. 2 is a partially cutaway enlarged plan view of FIG. 1;

FIG. 3 is an enlarged front view partially cut away of FIG. 1;

FIG. 4 is a partially cutaway enlarged plan view of FIG. 3;

FIG. 5 is an enlarged side view partially cut away of FIG. 1;

FIG. 6 is an enlarged sectional view of a main part showing a state in which paper cuttings are transported to a compression cylinder

FIG. 7 is a partially cutaway enlarged front view of the hopper.

FIG. 8 is an operation explanatory view (a) showing a compression step in a compression cylinder, and an operation explanatory view (b) showing the same compression step.

FIG. 9 is an operation explanatory view (a) showing a compression step in the compression cylinder, and an operation explanatory view (b) showing the same compression step.

FIG. 10 is a schematic plan view (a) showing the relationship between a compression cylinder and a compression rod, a schematic side view (b), and a schematic front view (c).

11A and 11B are a side view and a front view, respectively, showing a state in which a spiral conveyor is attached to a screw.

FIG. 12 is a schematic plan view (a) showing the relationship between a compression cylinder and a compression rod, a schematic side view (b), and a schematic front view (c).

FIG. 13 is an enlarged perspective view showing a paper cutting waste block having chamfered portions formed at four corners orthogonal to the compression direction.

FIG. 14A is a front view showing a form of a chamfered portion of a paper cutting waste block, FIG. 14B is a front view showing another form of a chamfered portion of the paper cutting waste block, and FIG. The figure which shows the front view (c) which shows another form.

FIGS. 15A and 15B are a schematic side view (a) showing a side wall and a compression rod in another form without a compression cylinder, and a schematic side view showing the schematic side view (a) with a compression cylinder added. FIG. 4B is a perspective view of a paper cutting waste block in which chamfers are formed at four corners orthogonal to the compression direction and at four peripheral edges on the front and rear sides in the compression direction.

FIG. 16 is an enlarged perspective view showing a cylindrical paper cutting waste block in which a chamfered portion is formed at a circumferential edge portion before and after in a compression direction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body case 2 Hopper 3 Compression mechanism 4 Storage part 5 Insertion opening 6 Paper cutting waste 8 Spiral conveyor 12 Guide 13 Compression cylinder 16 Compression rod 17 Toggle mechanism 26 Toggle shaft 28 Link 38 Paper cutting waste block 40 Copying cam 44 Supporting member 45 Cam follower 48 Draft angle 49 Rising part 50 Chamfering part 52 Chamfering part

Claims (9)

[Claims] 1. A cutting section for cutting paper, a hopper for temporarily storing the cut paper cuttings, a conveying device for conveying the paper cuttings from the bottom side of the hopper to a compression device, and the conveying device A compressing device for compressing the paper cuttings sent by the hopper, and an assisting member that assists the paper cuttings moving with respect to the hopper and temporarily stored in the hopper to move toward the conveying device at the bottom of the hopper. And a shredder comprising: 2. The assisting member is driven to descend obliquely along an inner wall of a hopper inclined toward the transfer device, and forcibly moves the paper cutting chips toward the transfer device. 2. The shredder according to claim 1, wherein the shredder breaks a bridging phenomenon of paper cuttings generated in the hopper. 3. The assisting member is driven forward so as to obliquely descend from a reference position along an inner wall of the hopper inclined downward toward the transfer device, and obliquely upward so as to further advance from its lower limit. , Or rises upward from the lower limit, and is further driven backward so as to retreat and return to the reference position, and in the course of the cyclic movement, transports the paper cutting waste to the transfer device side. 2. The shredder according to claim 1, wherein the shredder is forcibly moved to the hopper or breaks a bridge phenomenon of paper cutting waste generated in the hopper. 4. The driving mechanism of the assisting member includes a base member reciprocally driven to advance and retreat at a predetermined height with respect to the hopper, and the assisting member moves the advance and retreat with respect to the base member. The base member is movably connected to the base member so as to move together with the base member in the direction, and the assisting member moves forward and downward with respect to the base member in accordance with the movement of the base member in the forward direction. 4. The shredder according to claim 1, further comprising a cam device for providing a locus. 5. A pressing member that moves so as to intersect with the conveying direction of the conveying device and compresses the paper cutting chips is provided so as to reciprocate, and the pressing member driving device that reciprocates the pressing member is provided. The paper cutting waste is reciprocated once or a plurality of times to complete the compression of the paper cutting waste, and the pressing member driving device is connected to the assisting member via the pressing member or another member, and is driven by the pressing member driving device. The shredder according to claim 1, wherein the urging member moves as the pressing member moves. 6. The driving mechanism of the assisting member includes a base member that is reciprocally driven to move forward and backward at a predetermined height with respect to the hopper, and the assisting member moves forward and backward with respect to the base member. An urging member is connected between the assisting member and the base member so as to move with the base member in the direction and movably in the elevating direction, and to constantly urge the assisting member in the ascending direction. A cam device for providing a movement trajectory for the assisting member to move forward and downward with respect to the base member in accordance with the movement of the base member in the forward direction; By combining the downward movement,
The shredder according to any one of claims 1 to 5, wherein the assisting member is driven forward so as to obliquely descend from a reference position along an inner wall of the hopper inclined downward toward the transport device. 7. The cam device according to claim 1, wherein the assist member is provided with a movement locus so as to descend with respect to the base member while advancing in accordance with the movement of the base member in the advancing direction, and is further advanced from a lower limit thereof. 7. The shredder according to claim 6, which provides a movement trajectory that rises obliquely upward. 8. The shredder according to claim 6, wherein the pressing member driving device is connected to the base member via the pressing member or another member. 9. The reciprocating direction of the pressing member and the reciprocating direction of the base member are set parallel to each other, and the base member and the pressing member are connected directly or indirectly via another member. The shredder according to any one of claims 6 to 8, wherein: