JP6355975B2 - Cutting processing apparatus and cutting processing method - Google Patents

Description

  The present invention relates to a cutting processing apparatus, and more particularly, to a cutting processing apparatus and a cutting processing method for cutting an input material between rotary cutters disposed on two parallel shafts.

  2. Description of the Related Art Conventionally, as a cutting processing device, two parallel rotary cutters configured by alternately arranging a disk in which a plurality of blades are arranged in the circumferential direction and a collar (spacer) having a smaller diameter than the disk are arranged. Provided on each of the rotating shafts of the two rotating cutters so that the disk blade of one rotating cutter faces the collar of the other rotating cutter, and the disks of both rotating cutters are fitted together. There has been known a method in which an input material is drawn between the rotating cutters by a blade of a disk and the input material is cut (see, for example, Patent Document 1).

JP-A-6-320038

By the way, according to the cutting processing apparatus as described above that feeds the input material between the rotating cutters by the blades of the disks of the rotating cutters, for example, when a document stored in a box such as cardboard is to be cut and processed together If the entire box is inserted into the cutting processing apparatus, the box may not be drawn between the disks of both rotary cutters and may be in a state of dancing on both disks. In such a case, the document must be taken out from the box, and the taken-out document must be put between the two rotary cutters. If the document is taken out from the box, if the document is highly confidential, such as a confidential document, the taken-out document may be scattered and an unexpected situation may occur.
Further, according to the above-described cutting processing apparatus in which the input material is fed between the rotary cutters by the blades of the discs of both rotary cutters, a large amount of the input material is drawn into the cutting processing unit at once by the blades of the discs of both rotary cutters. Therefore, clogging is likely to occur between the rotating cutters. When clogging occurs, in order to restart the operation, the operation must be stopped and the clogged input material must be removed. On the contrary, workability may be reduced.
Recently, when clogging occurs, a pair of rotary cutters are temporarily rotated in a direction opposite to the rotation direction at the time of cutting processing to eliminate clogging, and then a cutting processing device that performs cutting processing again. However, when clogging frequently occurs, there is a possibility that workability may be deteriorated.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a cutting processing apparatus and a cutting processing method capable of reliably and efficiently cutting an input material.

According to another aspect of the present invention, there is provided the cutting processing apparatus according to the present invention, wherein each of two rotating shafts each having a rotating cutter in which a plurality of blades arranged in a circumferential direction are arranged in parallel at a predetermined interval in the central axis direction of the disk. The two rotary cutters are arranged so that the disk in one rotary cutter is positioned between adjacent disks in the other rotary cutter, and the input material is drawn between the two rotary cutters, In the cutting apparatus configured to perform the cutting process of the input material by shearing, the input material supply unit is disposed to face the one rotary cutter, and the input material in the input material supply unit is of being arranged turned member pressing means for pressing only the rotary cutter, after taken off by the charged material the one rotating cutter, the one of the rotating cutter Accordingly, characterized in that the feed between the two rotating cutter.

  The cutting processing device according to claim 2 is the cutting processing device according to claim 1, wherein a partition guide plate for partitioning the one rotating cutter side and the other rotating cutter side is disposed between both rotating cutters. The input material is supplied to the one rotary cutter by the guide of the partition guide plate.

  The cutting processing apparatus according to claim 3 is the cutting processing apparatus according to claim 1 or 2, wherein the opposite portion of the other rotary cutter is closed so that the input material cannot be supplied by the closing plate. Features.

5. The cutting processing method according to claim 4, wherein two rotary shafts in which rotary cutters in which a disk in which a plurality of blades are arranged in the circumferential direction are arranged in parallel at a predetermined interval in the central axis direction of the disk are parallel to each other. Both rotary cutters are arranged so that the disk in one rotary cutter is positioned between adjacent disks in the other rotary cutter, and the input material is drawn between the rotary cutters to When cutting the input material in a box using a cutting processing apparatus configured to cut the input material by shearing with a cutter, the input material is pressed to only the one rotary cutter together with the box by the input material pressing means. after taken off by the charged material the one rotating cutter, characterized in that fed between the two rotating cutter by the one of the rotary cutter to .

According to the cutting processing apparatus and the cutting processing method according to claim 1 and claim 4, for example, when a document (input material) stored in a box such as cardboard is to be processed for cutting, first, the input material is input. The material is pressed against the one rotary cutter by the material pressing means, and is finely scraped to a certain extent by the blade of the one rotary cutter, and then is drawn between the two rotary cutters and cut by the two rotary cutters.
Therefore, the amount of input material fed between the rotary cutters is about half that of the conventional cutting processing apparatus in which the input material is fed between the rotary cutters by the blades of the discs of both rotary cutters. As a result, the cutting process can be efficiently performed.
Further, since the input material is pressed against the one rotary cutter by the input material pressing means, the input material is also prevented from dancing on the rotary cutter. Also in this respect, the cutting process can be performed efficiently.

  According to the cutting processing apparatus of the second aspect, since the partition guide plate that partitions the one rotary cutter side and the other rotary cutter side is disposed, the input material is reliably rotated by the partition guide plate. You will be guided to the cutter.

  According to the cutting processing apparatus of the third aspect, since the facing portion of the other rotary cutter is closed, the input material is reliably supplied to only one rotary cutter.

1 is a partially cutaway plan view showing an embodiment of a cutting processing apparatus according to the present invention. It is a conceptual II-II sectional view taken on the line in FIG. It is explanatory drawing which showed the principal part of the cutting processing apparatus of this embodiment. It is the figure which showed the 1st modification of the cutting processing apparatus which concerns on this invention. FIG. 10 is a diagram of a second modification schematically showing a vertical arrangement of rotary cutters as another modification of the cutting processing apparatus according to the present invention, wherein (a) supplies the input material to the upper rotary cutter. (B) is a figure of the 3rd modification which supplies an input material to a lower rotation cutter.

  Hereinafter, embodiments of a cutting apparatus according to the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the cutting processing apparatus 1 according to the embodiment includes two rotating shafts 3 (3 a and 3 b) supported horizontally and rotatably on the machine frame 2. A rotating cutter 4 (4a, 4b) is fixedly attached to each of the two rotating shafts 3a, 3b.

As shown in FIG. 3, the rotary cutter 4 includes a plurality of blades 5 (5 a, 5 b) arranged in the circumferential direction at a plurality of equal intervals, a disk 6 (6 a, 6 b), and a smaller diameter than the disk 6. The collars 7 (7a, 7b) are arranged alternately in the axial direction of the rotating shaft 3 (3a, 3b) (the central axis direction of the disk 6) (see FIG. 1).
The blade 5 may be formed integrally with the disk 6 or may be formed by implanting a blade tip on the disk 6. Further, the height (blade height) of the blade may not be constant within one disk 6. Further, the collar 7 may be omitted. In short, it is sufficient that the disks 6 are arranged in parallel at a predetermined interval in the central axis direction of the disk 6.

Here, in the rotary cutter 4, the diameter of the disk 6 and the diameter of the collar 7 are constant. In the rotary cutter 4, the width of the disk 6 and the width of the collar 7 are constant. The width of the disk 6 and the width of the collar 7 are the same.
Both rotary cutters 4 are fixedly attached to the rotary shafts 3a and 3b with a key 8 or the like. When the rotary cutters 4 are attached to the rotary shafts 3 a and 3 b, the disk 6 in one rotary cutter 4 faces the collar 7 of the other rotary cutter 4, and the rotary cutter 4 rotates as the rotary cutter 4 rotates. The discs 6a and 6b of both rotary cutters 4a and 4b are fitted to each other so that the edge of the blade 5 of one rotary cutter 4 circumscribes the outer periphery of the collar 7 of the other rotary cutter 4. Yes.
In the present embodiment, the blade edge of the blade 5 of one rotary cutter 4 is configured to circumscribe the outer periphery of the collar 7 of the other rotary cutter 4 as both rotary cutters 4 rotate. There may be a gap between the edge of the blade 5 and the collar 7 as long as the disks 6a and 6b of the rotary cutters 4a and 4b are fitted to each other.

  Further, as shown in FIGS. 1 and 3, the blade 5 of the disk 6 is formed so that the edge of the blade edge defined by the blade edge surface and the blade back surface is slightly inclined with respect to the generatrix of the disk 6. As a result, the cutting edge of the blade 5 can easily bite into the input material, and each part of the cutting edge of the blade 5 of the one rotary cutter 4 is moved from one end to the other end in the width direction of the collar 7 of the other rotary cutter 4. By continuously contacting the surface with a time difference, the load applied to the rotating shaft 3 during the cutting process can be reduced.

  Further, as shown in FIG. 1, the blades 5 in the adjacent disks 6 of the rotary cutter 4 are arranged so that their phases are shifted from each other. As a result, it is possible to prevent the cutting edge of the blade 5 of each disk 6 from coming into contact with the collar 7 of the other rotary cutter 4 at the same time, and to prevent the load from being concentrated on the rotary shaft 3.

Further, the collar 7 functions as a spacer for holding the adjacent disks 6 at a predetermined interval, and also has a function of cutting the input material between the edge of the counterpart blade 5 here. The collar 7 may be omitted as described above.
In this embodiment, the collar 7 is formed integrally with the disk 6.
That is, the disk 6 of the present embodiment is a double disk in which the two disks 6 are integrally formed. Specifically, two adjacent disks 6 are connected by a single collar 7. Further, in the two series of discs, a color portion having a width half the width of one collar 7 is connected to the outside of the two connected discs 6. This color portion, together with the color portion of the two adjacent discs, constitutes one color 7.
In the present embodiment, the disk 6 and the collar 7 are integrated, but it is needless to say that the disk 6 and the collar 7 may be configured separately.

The rotary cutter 4 configured as described above is configured to be rotationally driven by a motor 9.
That is, as shown in FIG. 1, the rotating shaft 3 a of one rotating cutter 4 a is directly connected to the driving shaft of the motor 9. A gear 10a is fixedly attached to the rotary shaft 3a, while a gear 10b is fixedly attached to the rotary shaft 3b. The gear 10a and the gear 10b are meshed with each other. As a result, the rotation of one rotating shaft 3a rotated by the motor 9 is transmitted to the other rotating shaft 3b via the gears 10a and 10b. The rotary cutters 4a and 4b are rotated in opposite directions so as to draw the input material as indicated by arrows in FIG. 2 or FIG.
In this embodiment, the rotary shaft 3a is directly connected to the motor 9, but the rotary shaft 3a can be connected to the motor 9 via a reduction gear train. Also, the number of teeth of the gears 10a, 10b meshing with each other can be made different, and the number of rotations of the rotary shafts 3a, 3b can be made different. Further, a torque sensor may be provided on the rotary shaft 3 so that the motor 9 is reversed when an overload is applied.

Moreover, in the cutting processing apparatus 1 of this embodiment, the input material supply part 11 is comprised facing the rotation cutter 4a. The input material supply unit 11 is a part that supplies the input material to the rotary cutter 4a. On the other hand, the facing portion of the rotary cutter 4b is closed by the closing plate 12a so that the input material cannot be supplied to the rotary cutter 4b.
Further, a partition guide plate 12 is provided between the rotary cutters 4a and 4b so as to stand between the rotary cutter 4a and the other rotary cutter 4b. The partition guide plate 12 serves to guide the input material toward the rotary cutter 4a and to prevent the input material from scattering during scraping.
The partition guide plate 12 may be omitted.

As shown in FIG. 1, the input material supply unit 11 is defined by a rectangular tube-shaped wall 13 whose upper and lower sides are open. Of these walls 13, the wall near the rotary cutter 4 b constitutes the partition guide plate 12. Reference numeral 12a denotes a closing plate that covers the rotary cutter 4b. The closing plate 12a may be omitted, but it is preferable to provide at least one of the partition guide plate 12 and the closing plate 12a.
The wall 13 may be omitted. Moreover, the wall 13 on the opposite side to the rotary cutter 4b side among the walls 13 defining the input material supply unit 11 may be omitted or lowered. In this way, the stroke of the pressing plate 16 can be reduced. That is, when the wall 13 is in the shape of an image cylinder, it is necessary to raise the pressing plate 16 so that the pressing plate 16 does not get in the way when the input material is charged, but a part of the wall 13 is opened. If this is the case, the input material can be input from there even without raising the pressing plate 16 so high.

Moreover, the cutting processing apparatus 1 is provided with the input material pressing means 15 which presses the input material in the input material supply part 11 against the rotary cutter 4a.
The input material pressing means 15 of this embodiment is a fluid actuator such as hydraulic pressure or pneumatic pressure. The cylinder 15a is supported by a support portion (not shown) erected on the machine frame 2 and is rectangular at the tip of the piston rod 15b. The pressing plate 16 is held.
The input material pressing means 15 is not limited to a fluid actuator. For example, the input material pressing means 15 may include a motor and a screw feeding mechanism for screwing the pressing plate 16 instead of the fluid actuator.

  Next, operation | movement of the cutting processing apparatus 1 comprised in this way is demonstrated.

  As shown in FIG. 3, the cardboard A that is the input material that has been input to the input material supply unit 11 is guided by the partition guide plate 12 and pressed against the rotary cutter 4a.

  When the rotating cutters 4a and 4b rotate in this state, the corrugated board A is fed between the rotating cutters 4a and 4b in a state where the bottom of the corrugated board A is scraped by the blade 5a of the disk 6a and becomes somewhat fine. Then, the shearing action of the blade 5a of the disk 6a in one rotating cutter 4a and the disk 6b in the other rotating cutter 4b, and the blade 5 of the disk 6 in the one rotating cutter 4 and the collar 7 of the other rotating cutter 4 It is discharged in a state of being further finely cut by the pulling action.

According to the cutting processing apparatus 1 configured as described above, the following effects can be obtained.
For example, when a document (input material) stored in a box such as cardboard is to be cut, first, the input material is pressed against one rotary cutter 4a by the input material pressing means 15, and the one of the rotary cutters 4a. The blade 5a is finely scraped to a certain extent, and is then fed between the rotary cutters 4a and 4b and cut by the rotary cutters 4a and 4b.
Therefore, the amount of the input material fed between the rotary cutters 4a and 4b is about half that of the conventional cutting processing apparatus in which the input material is fed between the rotary cutters by the blades of the discs of both rotary cutters. As a result, the cutting process can be efficiently performed.
Further, since the input material is pressed against the rotary cutter 4a by the input material pressing means 15, the input material is also prevented from dancing on the rotary cutter 4a. Also in this respect, the cutting process can be performed efficiently.
Further, the input material is reliably guided to the one rotary cutter 4a by the partition guide plate 12.
The cutting apparatus 1 is particularly effective when used for cutting a boxed input material, particularly a boxed document or a bundle of paper pieces.

  As mentioned above, although embodiment of this invention was described, it cannot be overemphasized that this invention is not limited to this embodiment, A various deformation | transformation is possible in the range which does not deviate from the summary.

FIG. 4 shows a first modification.
In the first modification, the rotary cutters 4a and 4b are arranged obliquely. The partition guide plate 12 is also inclined so as to supply the input material to the rotary cutter 4a. In this case, when an input material, for example, cardboard A is supplied along the partition guide plate 12 and the cardboard A is pushed in by the input material pressing means 15, the lower surface of the cardboard A is pressed against the rotary cutter 4a. In the figure, reference numeral 20 denotes a comb blade-shaped fixed blade. The fixed blade 20 functions to prevent the input material from falling.
In this structure, the input material is automatically pressed against the partition guide plate 12 by its own weight, and the input material is surely sent to the rotary cutter 4a by the partition guide plate 12.

FIG. 5 shows a second modification and a third modification.
In the second modification and the third modification, the rotary cutters 4a and 4b are arranged vertically while the above embodiments arrange the rotary cutters 4a and 4b horizontally.

Among these, FIG. 5A shows a second modification. In this second modification, the input material is placed on the partition guide plate 12 and pressed by the input material pressing means 15 against the rotary cutter 4a located at the upper part. The input material scraped off by the rotary cutter 4a is fed between the rotary cutters 4a and 4b. In this case, the bottom plate of the input material supply unit 11 functions as the partition guide plate 12.
The portion facing the rotary cutter 4b is closed by the closing plate 12a. In the second modification, a comb blade-like fixed blade 20 fitted to the rotary cutter 4b is provided in order to prevent the input material from dropping from the gap between the closing plate 12a and the rotary cutter 4b. It is preferable to keep it.

  FIG. 5B shows a third modification. In this third modification, the input material pressing means 15 presses the input material against the rotary cutter 4b positioned below, and the rotary cutter 4b scrapes off the input material. The introduced material is fed between the rotary cutters 4a and 4b. The portion facing the rotary cutter 4a is closed by the closing plate 12a.

DESCRIPTION OF SYMBOLS 1 Cutting processing apparatus 2 Machine frame 3 (3a, 3b) Rotating shaft 4 (4a, 4b) Rotating cutter 5 (5a, 5b) Blade 6 (6a, 6b) Disk 7 (7a, 7b) Color (spacer)
9 Motor 11 Input material supply unit 12 Partition guide plate 12a Closure plate 15 Input material pressing means

Claims (4)

A rotating cutter in which a plurality of blades arranged in the circumferential direction are arranged in parallel at a predetermined interval in the central axis direction of the disc is provided on each of the two rotating shafts parallel to each other. Both rotating cutters are arranged so that the disk is positioned between adjacent disks in the other rotating cutter, the input material is drawn between the rotating cutters, and the input material is cut by shearing by the both rotating cutters. In the cutting processing apparatus configured as described above, the input material supply unit is disposed to face the one rotary cutter, and the input material pressing unit presses the input material in the input material supply unit only to the one rotary cutter. means have been arranged, after taken off the charged material by the one rotating cutter, between the two rotating cutter by the one of the rotary cutter Cutting apparatus, characterized in that Komu Ri.   A partition guide plate that partitions the one rotary cutter side and the other rotary cutter side is disposed between the two rotary cutters, and the input material is supplied to the one rotary cutter by the guide of the partition guide plate. The cutting processing apparatus according to claim 1.   The cutting processing apparatus according to claim 1 or 2, wherein an opposing portion of the other rotating cutter is closed by a closing plate so that the input material cannot be supplied. A rotating cutter in which a plurality of blades arranged in the circumferential direction are arranged in parallel at a predetermined interval in the central axis direction of the disc is provided on each of the two rotating shafts parallel to each other. Both rotating cutters are arranged so that the disk is positioned between adjacent disks in the other rotating cutter, the input material is drawn between the rotating cutters, and the input material is cut by shearing by the both rotating cutters. When cutting the input material in a box using the cutting processing apparatus configured as described above, the input material is pressed against the one rotary cutter only by the input material by the input material pressing means, and the input material is scraped by the one rotary cutter. After cutting, the cutting processing method characterized by feeding between both rotary cutters by the one rotary cutter.

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