JP2008049284A - Cutting device for sheet of waste material and cutting method used for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting device for a sheet of waste material which has a relatively simple structure and cuts a sheet of metal waste material into small pieces and is excellent in maintainability, and also provide a cutting method used for the same. <P>SOLUTION: The cutting part 16 of the cutting device for cutting the sheet of waste material 14a is provided with a cutter roller 21 having blades 24 for slit which extend circumferentially and a plurality of blades 25 for shear which extend in a direction orthogonal to the circumference in the outer periphery and a cutter receiving roller 22 for receiving the blades 24, 25 of the cutter roller 21. The cutter roller 21 is rotated in an arrow direction D by a driving mechanism and is pressed to the cutter receiving roller 22 by a pressing means. The blades 24 for slit and blades 25 for shear pushingly cut off the sheet shaped waste material 14a and discharge it as small piece of chip waste materials 18 by passing the sheet shaped waste material 14a between the cutter roller 21 and the cutter receiving roller 22. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sheet waste material cutting device and a cutting method for cutting a sheet waste material such as metal, paper, and plastic into small pieces.

  Conventionally, for example, an iron core piece constituting a stator used in a motor is manufactured by punching a long sheet material of a magnetic steel plate into a predetermined shape by a press. Moreover, the sheet-like waste material generated in this manufacturing process is collected and used for recycling. In recycling such a metal, it is desirable that the waste material is cut sufficiently finely (in small pieces) in order to facilitate handling and transportation, and to facilitate recycling.

As an apparatus for cutting such a sheet-like waste material, for example, Patent Document 1 discloses a shredder for cutting paper. As shown in FIG. 16, the cutting apparatus 1 has first and second disc-like cutters 4 and 5 attached to two first and second rotating shafts 2 and 3 arranged in parallel, respectively. Configured. Moreover, the 1st, 2nd disk shaped cutters 4 and 5 are provided with two or more sets (2 sets in FIG. 16). The first and second rotary shafts 2 and 3 are driven to rotate in directions opposite to each other, whereby the waste material is cut by passing the waste material between the first and second disk-shaped cutters 4 and 5. It has become so.
JP 2001-112015 A

  However, when the cutting apparatus 1 as described above is used, for example, for cutting metal sheet waste, the following problems occur. That is, it is necessary to maintain a very narrow clearance between the cutting edge of the first disk-shaped cutter 4 and the cutting edge of the second disk-shaped cutter 5, but a relatively hard metal such as a magnetic steel plate. In the case of cutting a material or a so-called sticky metal material such as aluminum, there is a problem that the waste material is likely to be caught between the clearance portions, and the cutting ability is quickly reduced. Therefore, it is necessary to frequently perform maintenance such as blade edge polishing.

  Further, in the cutting apparatus 1 described above, since the waste material is mainly cut in the feeding direction, there is a problem that the waste material after the cutting is not necessarily small enough. In this case, in order to use for recycling, it is necessary to provide a step of cutting the cut waste material into small pieces again.

  The present invention has been made in view of the above circumstances, and its purpose is to make it possible to cut a metal sheet-like waste material into small pieces with a relatively simple structure, and to maintainability. An object of the present invention is to provide an excellent sheet-like waste material cutting apparatus and method.

  The first sheet-like waste material cutting apparatus of the present invention is a sheet-like waste material cutting apparatus for cutting a sheet-like waste material into small pieces, and has a substantially cylindrical shape as a whole, and a slit blade extending in the circumferential direction on the outer periphery. And a cutter roller having a plurality of shear blade portions extending in a direction intersecting with the same, a driving means for rotationally driving the cutter roller, and an outer peripheral surface of the cutter roller, the blade portion for slit And a receiving member that receives the blade portion for shear, and a pressurizing unit that pressurizes the outer peripheral surface of the cutter roller against the receiving member, and the sheet-like waste material between the cutter roller and the receiving member The sheet-shaped waste material is cut by passing through (invention of claim 1).

  The sheet-like waste material cutting apparatus according to the second aspect of the present invention is a sheet-like waste material cutting apparatus for cutting a sheet-like waste material into small pieces. A cutter roller having a cutting blade portion extending in a mesh shape, a driving means for rotationally driving the cutter roller, a receiving member that is disposed to face the outer peripheral surface of the cutter roller, and that receives the cutting blade portion, A pressurizing unit that pressurizes the outer peripheral surface of the cutter roller in a direction in which the outer periphery of the cutter roller is pressed against the receiving member, and the sheet-like waste material is cut by passing the sheet-like waste material between the cutter roller and the receiving member. (Invention of Claim 13).

  The third sheet-like waste material cutting apparatus according to the present invention is a sheet-like waste material cutting apparatus for cutting a sheet-like waste material into small pieces, and has a substantially cylindrical shape as a whole, and a slit blade extending in the circumferential direction on the outer periphery. A first cutter roller having a portion, a first driving means for rotationally driving the first cutter roller, and a first cutter roller disposed opposite to the outer peripheral surface of the first cutter roller and receiving the slit blade portion. Receiving member, a first pressurizing unit that presses the first cutter roller against the first receiving member, and a substantially cylindrical shape as a whole. A second cutter roller having a plurality of shear blades extending in a crossing direction, a second driving means for rotationally driving the second cutter roller, and an outer peripheral surface of the second cutter roller. And the slip A second receiving member that receives the blade part, and a second pressurizing unit that presses the second cutter roller against the second receiving member, and the sheet-like waste material, A notch is formed in the feed direction through the first cutter roller and the first receiving member, and then cut through the second cutter roller and the second receiving member. (Invention of claim 14).

  Further, the cutting method of the sheet-like waste material according to the present invention is a cutting method of the sheet-like waste material that cuts the sheet-like waste material into small pieces. And a cutter roller having a plurality of shear blade portions extending in a direction intersecting with the cutter roller, and a receiving member that is disposed opposite to the outer peripheral surface of the cutter roller and receives the slit blade portion and the shear blade portion, In a pressurized state in which the outer peripheral surface of the cutter roller is pressed against the receiving member, the cutter roller is rotated, and the sheet-like waste material is passed between the cutter roller and the receiving member to thereby form the sheet shape. Waste material is cut into small pieces by the shear blade while cutting in the feed direction by the slit blade (invention of claim 15).

  According to the sheet waste cutting apparatus according to claim 1 of the present invention and the sheet waste cutting method according to claim 15 of the present invention, the sheet waste is passed between the cutter roller and the receiving member that are driven to rotate. Thus, the sheet-like waste material is pressed between the slit blade and the receiving member and cut in the feed direction. At the same time, the sheet-like waste material is pressed between the shear blade and the receiving member, and is cut in a direction crossing the feeding direction. Therefore, by rotating the cutter roller, the sheet-like waste material can be cut into small pieces. In this case, only one cutter roller is required, and a relatively simple configuration can be achieved.

  Further, since the cutting can be performed by pressurizing the cutter roller against the receiving member with a predetermined pressure by the pressurizing means, it is not necessary to maintain a delicate clearance. According to the present invention, even a relatively hard metal material such as iron can be cut sufficiently finely, and it is not necessary to perform cutting edge polishing so frequently, and it is excellent in maintainability. ing.

  According to the sheet waste material cutting apparatus of the thirteenth aspect of the present invention, the rotationally driven cutter roller has a substantially cylindrical shape as a whole, extends in an oblique direction with respect to the axial direction on the outer periphery, and intersects in a mesh shape. Since the cutting blade portion is configured so that the load applied to the blade portion of the cutter roller is uniform in any blade portion, buckling of the blade portion can be prevented.

  According to the sheet waste material cutting device of the fourteenth aspect of the present invention, the sheet waste material passes through the first cutter roller that is driven to rotate and the receiving member, so that the sheet waste material becomes a slit blade portion. And the receiving member and cut in the feed direction. By passing the sheet-shaped waste material cut in the feeding direction between the second cutter roller that is driven to rotate and the receiving member, the sheet-like waste material cut in the feeding direction is pressed into the shear blade and the receiving member. And cut in a direction crossing the feed direction. Therefore, the sheet-like waste material can be cut into small pieces by the rotation of the two types of cutter rollers. In this case, since each cutter roller has a simple structure having only a blade portion extending in the same direction, each cutter roller can be easily manufactured. In addition, the maintainability of the blade portion is excellent.

  Hereinafter, the present invention is applied to a cutting device that cuts a sheet-like waste material (or a soft sheet-like waste material such as paper) made of a metal (steel plate) left by punching an iron core piece used in a motor into small pieces. Several embodiments will be described with reference to FIGS.

(1) First Embodiment A first embodiment of the present invention (corresponding to claims 1, 2 and 15) will be described with reference to FIGS.
First, FIG. 2 schematically shows the overall configuration of the cutting apparatus 11 according to the present embodiment. The cutting device 11 is a device for performing the cutting method according to the present embodiment. Here, the cutting device 11 is provided at the rear stage of the press device 13 in the production line of the core pieces 12 constituting the laminated core for the motor.

  The strip-shaped magnetic steel sheet 14 having a thickness dimension of 0.1 to 0.5 mm, for example, as a sheet material used as the material of the iron core piece 12 is wound in a coil shape and is formed by a material supply device (not shown). As shown in the left direction to the right direction (arrow A direction) in FIG. 2, intermittent feeding (tact feeding) is performed to the press device 13 portion. The pressing device 13 is configured to punch the core pieces 12 into a predetermined shape from the strip-shaped magnetic steel sheet 14, and the punched iron core pieces 12 are collected in a collection box 15. And the strip | belt-shaped magnetic steel plate 14 after the iron core piece 12 was punched is intermittently (intermittently) sent to the cutting apparatus 11 as a sheet-like waste material in the state connected continuously with the unprocessed part. Hereinafter, the strip-shaped magnetic steel plate 14 after the core piece 12 is punched is referred to as a sheet-like waste material 14a.

  The cutting device 11 includes a cutting unit 16 that cuts the sheet-like waste material 14a into small pieces, and a drawing unit 17 that draws the sheet-like waste material 14a from the press device 13 and sends it to the cutting unit 16. The waste material cut into small pieces by the cutting unit 16 is referred to as a chip-like waste material 18.

The pull-in portion 17 includes a drive roller 19 and a pinch roller 20 provided below the drive roller 19 and sandwiching the sheet-like waste material 14 a between the drive roller 19.
The driving roller 19 is rotationally driven in the direction of arrow B by a driving mechanism such as a motor (not shown). At this time, the drive roller 19 is rotationally driven in synchronization with the material supply means, that is, in conjunction with the operation of the press device 13. Thereby, the sheet-like waste material 14a discharged intermittently from the pressing device 13 is drawn between the rollers 19 and 20 and sent out in the direction of arrow A.

Now, the said cutting part 16 is provided with the cutter roller 21 and the cutter receiving roller 22 as a receiving member arrange | positioned in the lower part.
The cutter receiving roller 22 is formed of, for example, tool steel, carbon steel or the like in a cylindrical shape, and has an outer peripheral surface that is smooth. The cutter receiving roller 22 is provided to be rotatable about an axis extending in the horizontal direction. At this time, the shaft member 23 that forms the shaft portion of the cutter receiving roller 22 is driven to rotate in the reverse direction (in the direction of arrow C in FIG. 2) in synchronization with the cutter roller 21 described later.

  The cutter roller 21 has a substantially cylindrical shape as a whole. As shown in FIGS. 1 and 3B, the cutter roller 21 crosses the outer peripheral surface of the cutter roller 21 and the slit blade 24 extending over the entire circumference in the circumferential direction. In this case, a plurality of shear blade portions 25 extending in the orthogonal direction (parallel to the axial direction) are provided. At this time, the slit blade portion 24 is a convex blade having a sharp edge, and two slit blade portions 24 are provided at positions that divide the outer peripheral surface of the cutter roller 21 into three equal parts in the width direction. Further, the shear blade portion 25 is a convex blade having a sharp edge, which is located between and on both sides of the slit blade portion 24, and eight at equal intervals in the circumferential direction, for a total of 24. A piece is provided.

  In this embodiment, as shown in FIG. 3, the cutter roller 21 is configured by combining a plurality of, in this case, eight segmented cells 26 in an annular shape. That is, each segmented cell 26 is shaped like a cylinder cut into eight equal parts in the circumferential direction. As shown in FIG. 3B, when the eight segmented cells 26 are arranged in an annular shape, The inner peripheral angle becomes a substantially cylindrical shape with a regular octagon when viewed in the axial direction. The cutter roller 21 of the present embodiment is configured by, for example, screwing and fixing the eight segment-like cells 26 in an annular shape on the outer periphery of the shaft member 28 that forms the shaft portion.

  Each segment cell 26 is formed by, for example, cutting a hard metal material such as tool steel or cemented carbide. As shown in FIG. 3A, the segmented cell 26 has a substantially pentagonal prism shape. Two split slit blade portions 27 are formed on the side surface which is the outer peripheral surface of the segment cell 26, and three shear blade portions 25 are formed.

Accordingly, when the eight segment-shaped cells 26 are arranged in an annular shape, the plurality of divided slit blade portions 27 function in the circumferential direction and function as the slit blade portions 24.
The length (height) of the convex blade of the split slit blade portion 27 is substantially the same as the length (height) of the shear blade portion 25, and the thickness dimension of the sheet-like waste material 14a. Longer than.

  The cutter roller 21 configured in this manner is provided directly above the cutter receiving roller 22 and is rotatable about an axis extending in the horizontal direction. At this time, although not shown, for example, a hydraulic jack as a pressurizing unit is attached to both ends of the shaft member 28. This jack pressurizes the outer peripheral surface (blade portions 24, 25) of the cutter roller 21 in a direction (downward) to press the outer peripheral surface of the cutter receiving roller 22.

  The end of the shaft member 28 is provided with a drive means (not shown) composed of a motor or the like, and the cutter roller 21 is rotationally driven in the direction of arrow D in FIG. 2 by the rotational drive of the motor. Yes. At this time, the rotational speed of the motor (cutter roller 21) is controlled by a rotational speed control device 29 shown in FIG.

  As a result, the sheet-like waste material 14a is passed between the cutter roller 21 and the cutter receiving roller 22 that are driven to rotate, and the sheet-like waste material 14a is pulled between the rollers 21 and 22 while being used for slitting. It is pressed between the blade portion 24 and the outer peripheral surface of the cutter receiving roller 22 and cut in the feeding direction of the sheet-like waste material 14a. At the same time, the sheet-like waste material 14a is pressed between the shear blade portion 25 and the cutter receiving roller 22, and is cut in a direction perpendicular to the feeding direction, in this case, the width direction of the sheet-like waste material 14a. Accordingly, the sheet-like waste material 14 a is cut into small pieces by the rotation of the cutter roller 21 and is discharged as the chip-like waste material 18. Although not shown, the discharged chip waste 18 is collected and used for recycling or the like.

  Here, the sheet-like waste material 14a discharged from the pressing device 13 is intermittently sent according to the operation of the pressing device 13, whereas the cutter roller 21 of the cutting unit 16 is started and stopped. There are circumstances where it is desirable to rotate continuously because it may be slow rather than repeated. For this reason, as shown in FIG. 2, the sheet-like waste material 14 a is in a slack state between the pull-in portion 17 and the cutting portion 16.

  In the cutting device 11 of the present embodiment, as shown in FIG. 2, a distance sensor 30 sensor is provided as a monitoring unit that monitors the slack state of the sheet-like waste material 14 a between the drawing portion 17 and the cutting portion 16. The rotational speed control device as rotational speed control means for controlling the rotational speed of the cutter roller 21 (motor) so that the slackness of the sheet-like waste material 14a monitored by the distance sensor 30 (monitoring means) falls within a predetermined range. 29 is provided.

  The distance sensor 30 measures the distance to an object using light such as laser, and is provided downward on the upper part of the sheet-like waste material 14a between the pull-in part 17 and the cutting part 16, and the sheet-like waste material. The distance (slack state) to the upper surface of 14a is detected. The detection result is input to the rotation speed control device 29, and the rotation speed control device 29 determines whether the obtained detection result is within a predetermined range. And when the slack of the sheet-like waste material 14a between the drawing-in part 17 and the cutting part 16 becomes larger than a predetermined range, control which enlarges the rotational speed of the cutter roller 21 (motor) is performed, and slack is smaller than a predetermined range. In this case, control for reducing the rotation speed of the cutter roller 21 (motor) is performed.

  In the above configuration, as shown in FIG. 2, the sheet-like waste material 14 a that is intermittently discharged from the press device 13 is sent to the cutting portion 16 through the pull-in portion 17. In the cutting unit 16, the sheet-like waste material 14 a is passed between the rollers 21 and 22 by passing the sheet-like waste material 14 a between the cutter roller 21 and the cutter receiving roller 22 that are rotationally driven. However, it is pressed between the blade part 24 for slits and the cutter receiving roller 22, and cut | judged in a feed direction. At the same time, the sheet-like waste material 14a is pressed between the shear blade portion 25 and the cutter receiving roller 22 and cut in a direction crossing the feeding direction. At this time, the cutter roller 21 is pressed against the cutter receiving roller 22 with a predetermined pressure, so that the sheet waste 14a made of a hard metal material such as a magnetic steel plate is sufficiently fine and The chip-shaped waste material 18 that can be surely cut and is suitable for recycling can be obtained.

  Also, unlike the conventional disk cutter, there is no need to maintain a delicate clearance between the cutting edges, and it is not necessary to polish the blade portions 24 and 25 (cutting edges) so frequently, which also improves maintenance. It is excellent. By providing both the slit blade 24 and the shear blade 25 on one cutter roller 21, it is only necessary to provide one set of cutter roller 21 and cutter receiving roller 22. The configuration can be completed relatively easily. Moreover, since the cutter roller 21 is configured by combining a plurality of segmented cells 26, the cutter roller 21 can be easily manufactured as compared with the case where the whole is manufactured integrally. In addition, it is possible to easily perform the cutting operation of the cutting edge in units of the segment cells 26, and it is possible to easily and inexpensively replace a part of the cutting edge when it is damaged.

  Furthermore, in this embodiment, the cutting device 11 is provided in the subsequent stage of the press device 13, and the sheet-like waste material 14a generated by the press device 13 is continuously cut as it is. Therefore, the cutting work of the sheet-like waste material 14a can be performed efficiently.

  Here, although the discharge of the sheet-like waste material 14a from the press device 13 is intermittent, if the operation of the cutting unit 16 (starting / stopping of both rollers 21 and 22) is intermittently performed in accordance therewith, When the rotation of both rollers 21 and 22 stops, the blade portions 24 and 25 may ride on the sheet-like waste material 14a or backlash may occur on both rollers 21 and 22. However, in the present embodiment, both rollers 21 and 22 can be operated continuously while maintaining the slack within the predetermined range of the sheet-like waste material 14a between the pull-in portion 17 and the cutting portion 16, and the above-mentioned problems Occurrence can be prevented in advance.

  As described above, according to the cutting apparatus 11 and the cutting method for the sheet-like waste material 14a according to the present embodiment, the metal sheet-like waste material 14a can be cut into small pieces with a relatively simple configuration, and also maintainability. It is possible to obtain an excellent effect of being excellent.

(2) Second and Third Embodiments FIGS. 4 and 5 show a second embodiment (corresponding to claims 6 and 7) of the present invention, and are different from the first embodiment below. Will be explained. In each embodiment described below, the same parts as those in the first embodiment are denoted by the same reference numerals, and new illustrations and detailed descriptions are omitted.

  The second embodiment is different from the first embodiment in the configuration of the cutter roller 41. That is, the cutter roller 41 according to the present embodiment is configured by laminating a plurality of slit cells 42 and shear cells 43 each having a ring shape such that the whole is cut in a direction perpendicular to the axis. . In the present embodiment, as shown in FIG. 4, two shear cells 43, one slit cell 42, two shear cells 43, one slit cell 42, and two shear cells 43 are sequentially laminated in the axial direction. ing. The stacked cells 42 and 43 are fitted and fixed to a shaft member (not shown). A stopper portion having a large diameter is provided on one end side of the shaft member, and one end of the stacked cells 42 and 43 is in contact with the stopper portion, and on the other end side of the stacked cells 42 and 43. The shaft nut is fastened to the threaded portion formed on the outer periphery of the shaft member, so that the whole is fixed. At this time, the circumferential positioning of each cell 42, 43 is performed by fitting a key groove (described later) formed on the inner peripheral side of each cell 42, 43 with a key provided on the outer periphery of the shaft member. It is like that.

  The slit cell 42 is formed with a slit blade portion 44 extending on the outer periphery over the entire circumferential direction. Moreover, the inner peripheral part of the slit cell 42 is opened circularly, and a key groove (not shown) is formed in a part thereof.

As shown in FIG. 5, the shear cell 43 has a ring shape that fits around the outer periphery of the shaft member, and has convex shear blade portions 45 protruding from the cylindrical outer peripheral surface at equal intervals in the circumferential direction. It is formed in a star shape having a plurality, for example, eight. The shear blade 45 extends parallel to the axial direction. Further, the skirt portion 46 between the shear blade portions 45 adjacent in the circumferential direction is processed into a straight line.
The inner peripheral portion of the shear cell 43 is opened in a circular shape, and a plurality of key grooves 47 for positioning are provided on the inner peripheral wall in this case, three in this embodiment at regular intervals in the circumferential direction (120 degree intervals). Is formed.

  According to the second embodiment, since the cutter roller 41 is configured by combining a plurality of slit cells 42 and shear cells 43, the slit cells 42 and the shear cells 43 are compared with a case where the whole is manufactured integrally. Thus, the individual production (cutting) of each is relatively easy, and the cutter roller 41 can be easily produced. At this time, by making the skirt portion 46 of the shear cell 43 straight, cutting becomes easier. Further, when the blade portions 44 and 45 are damaged, it is only necessary to replace the slit cell 42 or the shear cell 43 at that portion. Maintenance such as polishing is also facilitated.

  Furthermore, since the arrangement and combination of the slit cells 42 and the shear cells 43 can be easily selected, the cutter roller 41 corresponding to the size (width dimension) of the sheet-like waste material 14a can be easily obtained, and the arrangement interval of the slit cells 42 By changing the above, the size (width dimension) of the chip-shaped waste material 18 to be cut can be easily changed.

FIG. 6 shows a third embodiment (corresponding to claim 8) of the present invention, and the shear cell 51 is different from the shear cell 43 of the second embodiment.
That is, the shape of the outer peripheral portion of the shear cell 43 of the second embodiment is a star shape, but when the shape of the outer peripheral portion of the shear cell 51 of the present embodiment is viewed in the axial direction, each apex portion is used for shear. It was made into the polygonal shape used as the blade part 52, for example, a pentagonal shape. In addition, the inner peripheral surface of the shear cell 51 is circular like the second embodiment, and three positioning key grooves 47 are also formed.

By using the shear cell 51 in which each apex portion becomes the shear blade portion 52 as in the present embodiment, the processing (manufacturing) of the shear cell 51 becomes easier. Also, the maintenance of the polishing of the blade part (blade edge) can be facilitated.
In the shear cell 51 of the present embodiment, the load applied to the shear blade 52 can be uniformly received by the entire shear cell 51, and the occurrence of buckling of the shear blade 52 can be suppressed. Further, it is possible to prevent the cut chip-shaped waste material 18 from being sandwiched between the shear blade portions 52 adjacent in the circumferential direction.

(3) Fourth and Fifth Embodiments FIG. 7 and FIG. 8 show a fourth embodiment (corresponding to claim 5) of the present invention. The fourth embodiment differs from the second embodiment mainly in the configuration of the shear cell 55.

  As shown in FIG. 8, the cutter roller 56 in the present embodiment is configured by stacking, for example, two slit cells 42 and four shear cells 55, and guide rings 57 are provided at both ends thereof. It is arranged. The guide ring 57 has substantially the same outer shape as the slit blade portion 44 of the slit cell 42. The laminated slit cell 42, shear cell 55, and guide ring 57 are fitted into a shaft member 59 having a large-diameter stopper portion 58 and fixed by a shaft nut 60. At this time, the shear cell 55 is positioned in the circumferential direction by the key groove 47 (see FIG. 7).

  As shown in FIG. 7, the shear cell 55 of the present embodiment has eight shear blade portions 61 on the outer peripheral portion, and 3 on the inner peripheral portion, similarly to the shear cell 43 of the second embodiment. Each key groove 47 (only one is shown in FIG. 7). The shear blade portion 61 integrally includes an overhang portion 62 in which one end portion in the thickness direction (axial direction) extends in the axial direction.

  As shown in FIG. 8, when the shear cell 55 and the slit cell 42 are laminated, the overhang portion 62 is in contact with the side surface of the slit blade portion 44 at one end of the shear blade portion 61 of the shear cell 55. It is formed in a shape that covers the slope of the slit blade portion 44.

Thereby, in the cutter roller 56 of this embodiment, the clearance gap between the blade part 44 for slits and the blade part 61 for shears can be eliminated. Therefore, it is possible to surely cut the sheet-like waste material 14a, and it is possible to prevent a problem that the chip-like waste materials 18 after cutting are partially connected to each other.
Further, it is possible to eliminate the problem that the sheet-like waste material 14a and the chip-like waste material 18 after cutting are caught in the gap between the slit blade portion 44 and the shear blade portion 61, and the maintenance becomes easy.

  In addition, by providing the guide rings 57 at both ends of the cutter roller 56, it is possible to prevent the sheet-like waste material 14 a passed between the cutter receiving roller 22 and the cutter roller 56 from protruding from the end of the cutter roller 56. . Further, when a large load is applied to the slit blade portion 44 or the shear blade portion 61, the guide ring 57 also receives the load, so the load applied to the blade portions 44 and 61 can be reduced. .

  FIG. 9 shows a fifth embodiment (corresponding to claims 9 and 10) of the present invention. The cutter roller 65 of the fifth embodiment is different from the cutter roller 56 of the fourth embodiment in that the positions of the shear blade portions 61 of the respective shear cells 55 are shifted in the circumferential direction.

  That is, the cutter roller 65 is similar to the fourth embodiment in that the guide ring 57, the shear cell 55, the slit cell 42, the two shear cells 55 (illustrated integrally), the slit cell 42 are sequentially arranged from the bottom in the figure. The shear cell 55 and the guide ring 57 are stacked and attached to a shaft member 59. At this time, as described above, three key grooves 47 are formed at an interval of 120 degrees in the inner peripheral portion of the shear cell 55, and by selectively using these key grooves 47, each of the shear cells 55 is surrounded. It is shifted by 120 degrees in the direction.

  In the cutter roller 65 of the present embodiment, since the shear blade portions 61 are distributed in the circumferential direction, the load on the slit blade portion 44 and the shear blade portion 61 can be reduced, and the blade portions 44, 56. Can extend the lifespan. Further, by providing a plurality of key grooves 47 in the shear cell 55 and selectively using them, the circumferential position when the shear cell 55 is attached to the shaft member 59 can be easily selected. 65 can be easily realized.

(4) Sixth Embodiment FIG. 10 shows a sixth embodiment (corresponding to claim 13) of the present invention.
The cutter roller 71 of the present embodiment has a substantially cylindrical shape as a whole, and is provided with a large number of cutting blade portions 72 and 73 extending obliquely with respect to the axial direction and intersecting in a mesh shape on the entire outer peripheral portion thereof. I have to.

  Although not shown, the cutter roller 71 is also rotationally driven while being attached to the shaft member. In addition, the cutter receiving roller 22 is disposed below the cutter roller 71, and the outer periphery of the cutter roller 71 is pressed against the cutter receiving roller 22 by a pressurizing unit. In this state, the sheet-shaped waste material 14a is cut between the cutter roller 71 and the cutter receiving roller 22, and is cut into small pieces (the shape formed by the mesh-shaped cutting blade portions 72 and 73). 18.

  In the cutter roller 71 of the present embodiment, the number of the cutting blade portions 72 and 73 in contact with the sheet-like waste material 14 a is substantially the same at any position in the circumferential direction of the cutter roller 71. Therefore, the load applied to the cutting blade portions 72 and 73 of the cutter roller 71 can be sufficiently reduced, and the life of the cutting blade portions 72 and 73 can be extended.

(5) Seventh and Eighth Embodiments FIG. 11 shows a seventh embodiment (corresponding to claim 11) of the present invention. The shear cell 75 of the seventh embodiment differs from the shear cell 43 of the second embodiment in the following points.

That is, the shear cell 75 is provided with a block-like (plate-like) elastic body 76 made of rubber, for example, by bonding or the like at the skirt portion 46 between the shear blade portions 45 adjacent in the circumferential direction of the outer peripheral surface of the shear cell 43. I am doing so. The elastic body 76 is provided with a height dimension slightly lower than the shear blade portion 45.
With the configuration in which the elastic body 76 is provided, it is possible to prevent the cut chip-shaped waste material 18 from being sandwiched between the skirt portions 46 between the shear blade portions 45.

FIG. 12 shows an eighth embodiment (corresponding to claim 12) of the present invention.
In this embodiment, an elastic body, for example, a rubber protective ring 81 is provided between the slit cell 42 and the shear cell 55 adjacent to both sides thereof. The outer diameter of the protective ring 81 is arbitrary, but if the outer diameter of the slit cell 42 is too small, it is difficult to obtain the effect of preventing buckling, which will be described later. The same diameter or a slightly larger diameter. In addition, a portion of the outer peripheral portion of the protection ring 81 where the overhang portion 62 of the shear cell 55 is located is notched, and a concave portion 82 is formed.

  By providing the protective ring 81 on one side or both sides of the slit cell 42, when a large load is applied to the slit blade 44, the load can be received by the protective ring 81. Such a load can be reduced. Thereby, buckling etc. of the blade part 44 for slits can be prevented beforehand.

In addition, the cut chip-shaped waste material 18 is less likely to be sandwiched between the adjacent slit blade portion 44 and the shear blade portion 61, and the maintainability can be improved.
The protective ring 81 may be provided only on one side of the slit cell 42. Further, the shear cell 43 without an overhang portion may be used.

(6) Ninth and Tenth Embodiments FIG. 13 shows a ninth embodiment (corresponding to claim 3) of the present invention, and schematically shows the configuration of the cutting device 85 according to the present embodiment. Show.

  The cutting device 85 according to the present embodiment includes the same cutter roller 21 as in the first embodiment, and a roller conveyor 87 having a function of transporting the sheet-like waste material 86. Although not shown, the cutter roller 21 is driven to rotate at a predetermined speed in the direction of arrow D by a driving means such as a motor. Further, the cutter roller 21 is driven by a pressing means. The slit blade portion 24 and the shear blade portion 25 on the outer peripheral surface are pressed against a receiving member described later.

  The roller conveyor 87 is configured by arranging a plurality of rollers 88 side by side, and all or a part of these rollers 88 is driven in the direction of arrow E by driving means such as a motor (not shown). Thereby, the sheet-like waste material 86 is moved on the roller conveyor 87 in the arrow A direction. In this case, the sheet-like waste material 86 is made of, for example, a thin metal plate cut to a predetermined size. The length in the width direction of each roller 88 of the roller conveyor 87 is longer than the width direction of the sheet-like waste material 86.

  The cutter roller 21 is provided above the two rollers 88a and 88b located at the center of the roller conveyor 87, and the outer peripheral surface of the cutter roller 21 has both rollers 88a and 88b. It comes in contact with the outer peripheral surface of the. Thereby, the rollers 88a and 88b also serve as receiving members for receiving the blade portions 24 and 25 of the cutter roller 21.

With the above configuration, the sheet-like waste material 86 is supplied to the left end portion in the drawing on the roller conveyor 87 and is sent to the right (in the direction of arrow A) in the drawing. Then, when the sheet-like waste material 86 reaches the cutter roller 21 portion, it is pushed by the slit blade portion 24 and the shear blade portion 25 while being drawn between the cutter roller 21 and the rollers 88a and 88b. Thereby, the sheet-like waste material 86 is cut into small pieces to form the chip-like waste material 18.
Thus, by using the roller conveyor 87 that partially functions as a receiving member, the sheet-like waste material 86 can be cut while being conveyed.

FIG. 14 schematically shows a configuration of a cutting device 91 according to a tenth embodiment (corresponding to claim 4) of the present invention.
The cutting device 91 of this embodiment is different from the ninth embodiment in that a belt conveyor 92 is used instead of the roller conveyor 87. In the present embodiment, the sheet-like waste material 93 to be cut is made of a relatively soft material such as paper, cardboard, plastic sheet, or copper foil. In other words, the belt conveyor 92 is configured such that a loop (endless) belt 96 is stretched between the driving roller 94 and the driven roller 95. The driving roller 94 is rotationally driven in the direction of arrow F by a driving means (not shown), whereby the belt 96 is driven to feed the sheet-like waste material 93 on the belt 96 in the direction of arrow A.

  The cutter roller 21 is provided at the upper center of the upper surface of the belt 96 so as to press the belt 96 downward. Therefore, a part of the belt 96 in contact with the outer peripheral surface of the cutter roller 21 functions as a receiving member that receives the slit blade portion 24 and the shear blade portion 25 of the cutter roller 21.

Also in the above configuration, the sheet-like waste material 93 supplied to the left end side in the figure on the belt conveyor 92 is sent to the right side (arrow A direction) in the figure, and passes through the cutter roller 21 portion to form small pieces. Cut.
Thus, by using the belt conveyor 92 that also functions as a receiving member, the relatively soft sheet-shaped waste material 93 can be cut into small pieces.

(7) Eleventh Embodiment FIG. 15 shows an eleventh embodiment (corresponding to claim 14) of the present invention. The cutting device 101 according to the eleventh embodiment is different from the cutting device 11 (the cutting unit 16) according to the first embodiment in the following points.
That is, in the cutting apparatus 101 of this embodiment, two types of the first cutter roller 102 and the second cutter roller 103 provided in the subsequent stage are used instead of the one cutter roller 21 of the first embodiment. The sheet waste material 14a is cut using the cutter rollers 102 and 103.

  The first cutter roller 102 has a substantially cylindrical shape as a whole, and has a slit blade portion 104 extending in the circumferential direction on the outer periphery. In this case, a first cutter receiving roller 105 (first receiving member) is disposed below the first cutter roller 102. Since the configuration and operation of the first cutter receiving roller 105 are the same as those of the cutter receiving roller 22 of the first embodiment, a description thereof will be omitted. The first cutter roller 102 is also provided with the same drive means (first drive means) and pressurization means (first pressurization means) as the cutter roller 22 of the first embodiment.

  On the other hand, the second cutter roller 103 has a substantially cylindrical shape as a whole, and has a plurality of shear blade portions 106 extending in the direction intersecting the circumferential direction on the outer periphery. In this case, a second cutter receiving roller 107 (second receiving member) is disposed below the second cutter roller 103. Similarly to the cutter roller 21 of the first embodiment, the second cutter roller 103 is also provided with a driving means (second driving means) and a pressing means (second pressing means). .

In the above configuration, the following actions and effects can be obtained.
By passing the sheet waste material 14a between the first cutter roller 102 and the first cutter receiving roller 105 that are driven to rotate, the sheet waste material 14a is converted into the slit blade portion 104 and the first cutter receiving roller 105. And cut in the feed direction. The sheet waste material cut in the feeding direction is passed between the second cutter roller 103 and the second cutter receiving roller 107 that are continuously driven to rotate, whereby the shear blade portion 106 and the second cutter receiving roller are passed. 107 is cut in a direction crossing the feed direction, cut into small pieces, and discharged as chip-shaped waste material 18.

  In the present embodiment, each of the first and second cutter rollers 102 and 103 has a simple structure having only the blade portions 104 and 106 extending in the same direction. Become. Moreover, it is easy to remove the chip-like waste material 18 sandwiched between the slit blade portions 104 adjacent in the axial direction of the first cutter roller 102 or between the shear blade portions 106 adjacent in the circumferential direction of the second cutter roller 103. Also, it is excellent in maintainability.

(8) Other Embodiments The present invention is not limited to the above-described embodiments, and can be modified or expanded as follows.
In 1st Embodiment, although the cutter roller 21 was comprised from the eight segment-like cells 26, if the cutter roller 21 can be comprised by combining, the shape and number of segment-like cells will change arbitrarily. be able to. Or you may make it manufacture a cutter roller by processing the outer peripheral surface of one cylindrical roller. The segmented cell may be further divided. The number of slit blade portions 24 and shear blade portions 25 can also be changed as necessary. Of course, as the blade portions 24 and 25 increase, the chip-shaped waste material 18 after cutting becomes smaller.

Instead of providing the distance sensor 30 for detecting the loose state of the sheet-like waste material 14a, the roller of the retracting portion 17 may be provided with functions such as tension control and brake. Various changes can be made to the configuration of the monitoring means.
The skirt portion 46 between the shear blade portions 45 adjacent to each other in the circumferential direction in the above embodiment is linear, but may be arcuate. The shearing blade portion may be provided so as not to be parallel to the axial direction but to extend slightly inclined with respect to the axial direction.

The material of the cutter roller and the receiving member is not limited as long as the strength can break the sheet-like waste material.
In the third embodiment, the shear cell 51 whose outer peripheral portion has a pentagonal shape is used. However, as long as the sheet-like waste material 14a can be cut, it can have any polygonal shape. In actual use, it is preferable to use a triangle to an octagon.

In the fourth and fifth embodiments, the guide ring 57 is provided to prevent the sheet-like waste material 14a from slipping and the blade portion from buckling. However, the guide ring 57 may be provided as necessary.
In the above embodiment, the key grooves 47 are provided at three locations that divide the inner peripheral surfaces of the ring-shaped shear cells 43, 51, 55, and 75 into three in the circumferential direction. However, the key grooves 47 may be provided at two locations or at four or more locations. .

  In the seventh embodiment, the elastic body 76 made of rubber is provided in the skirt 46, but an elastic body other than rubber, for example, a metal leaf spring may be attached. Moreover, you may provide the elastic body 76 in the cutter roller which has the base part between the blade parts for shears other than the shear cell 75 of 7th Embodiment. Furthermore, although the elastic body 76 is provided with a slightly lower height than the shear blade portion 45, it may be the same or higher.

The cutter roller and the receiving member may be arranged side by side instead of vertically. In this case, the sheet-like waste material is passed in the vertical direction.
The present invention is not limited to the cutting of the sheet-like waste material 14a made of a magnetic steel plate remaining in the manufacture of the iron core piece, and can also be applied to, for example, cutting a sheet-like waste material such as paper, plastic, or cardboard into small pieces.

The perspective view of the principal part of the sheet-like waste material cutting device which shows the 1st Embodiment of this invention. Side view schematically showing the overall configuration of the sheet-like waste material cutting device (A) is a perspective view of a segmented cell, (b) is a perspective view of a cutter roller configured by combining segmented cells. The disassembled perspective view of the cutter roller which shows the 2nd Embodiment of this invention Top view of shear cell FIG. 5 equivalent view showing the third embodiment of the present invention Sectional drawing of the shear cell which shows the 4th Embodiment of this invention Top view of cutter roller The perspective view of the cutter roller which shows the 5th Embodiment of this invention The perspective view of the cutter roller which shows the 6th Embodiment of this invention FIG. 5 equivalent view showing the seventh embodiment of the present invention The fragmentary perspective view of the cutter roller which shows the 8th Embodiment of this invention. The side view of the cutting device which shows the 9th Embodiment of this invention FIG. 13 equivalent view showing the tenth embodiment of the present invention. The side view of the principal part of the cutting device which shows the 11th Embodiment of this invention Sectional drawing which shows the principal part of the conventional sheet-shaped waste material cutting device

Explanation of symbols

  In the drawing, 14a, 86, 93 are sheet-like waste materials, 11, 85, 91, 101 are cutting devices, 16 is a cutting portion, 17 is a retracting portion, 18 is chip-like waste material, 21, 41, 56, 65, 71 are Cutter roller, 22 is a cutter receiving roller (receiving member), 24, 44 and 104 are slit blades, 25, 45, 52, 61 and 106 are shear blades, 28 and 59 are shaft members, and 42 is a slit cell. , 43, 51, 55, and 75 are shear cells, 46 is a skirt portion, 47 is a keyway, 62 is an overhang portion, 72 and 73 are cutting blade portions, 76 is an elastic body, 81 is a protective ring, 87 is a roller conveyor, 88 is a roller, 88a and 88b are rollers (receiving members), 92 is a belt conveyor, 102 is a first cutter roller, 103 is a second cutter roller, and 105 is a first cutter receiving roller (first receiving portion). ), 107 denotes a second cutter receiving roller (second receiving member).

Claims (15)

In the sheet waste material cutting device that cuts the sheet waste material into small pieces,
A cutter roller having a generally cylindrical shape as a whole, having a slit blade portion extending in the circumferential direction on the outer periphery, and a plurality of shear blade portions extending in a direction intersecting therewith,
Driving means for rotating the cutter roller;
A receiving member that is disposed opposite to the outer peripheral surface of the cutter roller and receives the blade part for slit and the blade part for shear;
Pressurizing means for pressurizing the outer circumferential surface of the cutter roller in a direction to press against the receiving member;
A sheet-like waste material cutting device, wherein the sheet-like waste material is cut by passing the sheet-like waste material between the cutter roller and the receiving member. A pull-in part that pulls in a long sheet-like waste material that is continuously fed and sends it to the cutter roller part;
Monitoring means for monitoring the slack state of the sheet-like waste material between the pull-in portion and the cutter roller;
2. A rotation speed control means for controlling the rotation speed of the cutter roller so that the slack of the sheet-like waste material monitored by the monitoring means falls within a predetermined range. Sheet-shaped waste cutting equipment. A plurality of rollers are arranged side by side, provided with a roller conveyor for feeding the sheet-like waste material toward the cutter roller,
2. The sheet-like waste material cutting apparatus according to claim 1, wherein a part of the rollers of the roller conveyor also functions as the receiving member. A belt conveyor for feeding the sheet-shaped waste material toward the cutter roller,
2. The sheet waste material cutting device according to claim 1, wherein a part of the belt conveyor functions as the receiving member.   The sheet-like waste material according to any one of claims 1 to 4, wherein an end portion of the shear blade portion is integrally provided with an overhang portion extending in a direction in contact with the slit blade portion. Cutting device.   The cutter roller has a ring shape that fits on the outer periphery of the shaft member with respect to a shaft member that is long in the axial direction, and a ring shape that fits on the outer periphery of the shaft member. 6. A sheet-like waste material cutting device according to claim 1, wherein a shear cell having an outer periphery and a shear cell having a shear blade portion is inserted and fixed in a laminated state.   The sheet-like waste material according to claim 6, wherein the outer peripheral portion of the shear cell is configured in a star shape having a plurality of convex shear blade portions protruding from a cylindrical outer peripheral surface in the circumferential direction. Cutting device.   The sheet-shaped waste material cutting device according to claim 6, wherein the outer peripheral portion of the shear cell is formed in a polygonal shape in which each apex portion is a blade portion for shear. The cutter roller is configured to include two or more shear cells,
The sheet-like waste material according to any one of claims 6 to 8, wherein the shear blade portion of the one shear cell and the shear blade portion of the other shear cell are arranged so as to be shifted in the circumferential direction. Cutting device.   A plurality of key grooves for alignment in the circumferential direction with respect to the shaft member are formed on the inner peripheral surface of the shear cell. By selectively using the key grooves, the circumferential mounting on the shaft member is performed. 10. The sheet waste material cutting device according to claim 6, wherein the position is selectable.   The sheet-like waste material cutting device according to claim 7, wherein an elastic body is provided on an outer peripheral surface of the shear cell so as to be located at a skirt portion between the shear blade portions.   The sheet-like waste material according to any one of claims 6 to 11, wherein a protective ring made of an elastic body for protecting the slit blade portion is provided between the slit cell and the shear cell. Cutting device. In the sheet waste material cutting device that cuts the sheet waste material into small pieces,
A cutter roller having a substantially cylindrical shape as a whole and having a cutting blade portion extending obliquely with respect to the axial direction and intersecting in a mesh shape on the outer periphery;
Driving means for rotating the cutter roller;
A receiving member that is disposed opposite to the outer peripheral surface of the cutter roller and receives the cutting blade portion;
Pressurizing means for pressurizing the outer circumferential surface of the cutter roller in a direction to press against the receiving member;
A sheet-like waste material cutting device, wherein the sheet-like waste material is cut by passing the sheet-like waste material between the cutter roller and the receiving member. In the sheet waste material cutting device that cuts the sheet waste material into small pieces,
A first cutter roller having a substantially cylindrical shape as a whole and having a slit blade portion extending in the circumferential direction on the outer periphery;
First driving means for rotationally driving the first cutter roller;
A first receiving member disposed opposite to the outer peripheral surface of the first cutter roller and receiving the blade for slit;
First pressing means for applying pressure so as to press the first cutter roller against the first receiving member;
A second cutter roller having a substantially cylindrical shape as a whole and having a plurality of shear blade portions extending in a direction intersecting the circumferential direction on the outer periphery;
Second driving means for rotationally driving the second cutter roller;
A second receiving member disposed opposite to the outer peripheral surface of the second cutter roller and receiving the slit blade portion;
A second pressurizing unit that pressurizes the second cutter roller so as to press the second cutter roller against the second receiving member;
The sheet-like waste material is passed between the first cutter roller and the first receiving member to form a cut in the feeding direction, and then passed between the second cutter roller and the second receiving member. A sheet-like waste material cutting device, characterized by being configured to cut. In the cutting method of the sheet-like waste material that cuts the sheet-like waste material into small pieces,
The cutter roller has a generally cylindrical shape as a whole, and has a slit blade portion extending in the circumferential direction on the outer periphery and a plurality of shear blade portions extending in a direction intersecting with the slit roller portion, and an outer peripheral surface of the cutter roller. And a receiving member for receiving the slit blade portion and the shear blade portion,
In a pressurized state in which the outer peripheral surface of the cutter roller is pressed against the receiving member, the cutter roller is rotated,
By passing the sheet-like waste material between the cutter roller and the receiving member,
While cutting the sheet waste material in the feeding direction by the slit blade,
A sheet-like waste material cutting method, wherein the shear blade portion is used to cut into small pieces.

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