JP2002326196A - Boring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To relate an edge for boring to a cam plate in good balance so as to precisely interlock, and to certainly bore even if the number of sheets bored is increased. SOLUTION: This boring device comprises a motor 11, gear mechanisms 3, 4, 5, 6, 8, 9, 10, rotation-line converting mechanisms 13, 14, orthogonal converting mechanisms 18, 19, 22, 23, 115, 117, 119, and a frame 98 having a throttle in a vertical direction. A driving gear 3 fixed to a rotating shaft of the motor is coupled to the rotation-line converting mechanisms through the gear mechanisms, and both cam plates 16 of the rotation-line converting mechanisms are moved in parallel in the same direction by rotating force of the motor. Moving elements 64, 65, 54, 30, 31 provided with pins 115, 117, 119 loosely inserted in cam grooves 18, 22 provided on the cam plates and the throttle provided on the frame are vertically moved by the pins and the cam grooves. As an edge portion 36 of a boring element, one or plural U-shaped edges are disposed on a circumference so as to separate from each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punching device for forming a hole in a material to be punched, such as paper, by combining a boring body and a die, and more particularly to a copying machine, a printer, a facsimile, a printing machine, and a printer. The present invention relates to a punching device suitable for use in an image forming apparatus such as a multifunction device.

[0002]

2. Description of the Related Art A pair of eccentric cams are integrally provided on a rotating shaft which is rotated by a motor. Both ends of a punch holding member having a predetermined number of punches are supported by the pair of guard cams.
A conventional punching device having a configuration in which a punch is guided in a guide hole to move up and down by rotation of an eccentric cam, and is engaged with a die to form a hole in a stopped sheet of paper or the like as a material to be punched. Has been improved as shown in FIG. 20 because the punch has to be stopped at a standby position away from the sheet.
JP-A-2001-2001, which is a conventional punching device shown in FIG.
The drilling device disclosed in Japanese Patent No. 9791 discloses a rotary motion of a motor 200 changed to a rotary motion of a pinion 202 via a reduction gear mechanism 201, and a rotary motion of the pinion 202 is straightened on a cam plate 204 via a rack 203 meshing with the pinion 202. The function has been improved to convert the linear motion of the cam plate 204 into a vertical motion of the punch 206 via a cam groove 205 formed in the cam plate 204 instead of the motion. The blade of the punch 206 was formed in a shape only for punching.

[0003]

In the above-mentioned improved conventional punching apparatus, after a sheet is punched, the sheet is pulled out, and the punch is separated from the sheet until the next sheet is set. Was to stop.
However, since there is only one cam plate, the pin provided on the punch and the cam groove are engaged only on one side, and when the shape of the cam groove changes during the left-right sliding operation of the cam plate, the pin is In some cases, the camera may be inclined by an unspecified angle from the vertical direction to the operation direction, making it difficult to perform an accurate copying operation.

Further, since the punch merely punches out the paper, there is no paper press and only a very small number of punches can be punched.

When punching a large number of sheets of paper, a so-called zero blade 229 having no projection in the axial direction of the bore cylindrical portion 230 has conventionally been used as a punching punch for packing or the like as a punching punch for packing. Had been. FIG. 21A is a sectional view of the zero blade 229, and FIG. 21B is a plan view.

When piercing is performed using the zero blade 229, a piercing mark concentric with the blade remains on the surface where the blade contacts. In addition, there is a problem that the entire cutting edge receives a reaction of the shearing force and the resistance during drilling increases. Further, if the bored cylindrical portion 230 is hollow, drilling debris is clogged in the bored cylindrical portion 230, and it is necessary to remove the waste every time a hole is drilled, and a continuous drilling operation cannot be performed. For this reason, there was also a drilling blade that provided a hole through which scum was discharged in the grip portion, such as a peeling bonnet,
Since the frictional resistance when the swarf moves through the hollow part up to the discharge hole is large, when drilling continuously, the resistance at the time of drilling is further increased, and the drilling marks that can be made concentric with the blade and the blade formed on the back side There has also been a problem that concentric burrs are generated more strongly.

There is also a blade provided with a plurality of blades which can be cut only in one rotation direction as shown in FIG. 21 (c). However, since the rotation direction is determined, a fixed portion of the cutting blade has heat or wear. There was a disadvantage that the cutting did not work immediately.

Accordingly, an object of the present invention is to provide a punching device which associates a punching blade with a cam plate in a well-balanced and accurate manner, and which can reliably punch even when the number of punched holes is increased. I do.

Another object of the present invention is to provide a perforation blade for a perforation apparatus which can continuously perforate a sheet without large marks and without any marks or burrs.

[0010]

Means for Solving the Problems (1) A drilling device includes a motor, a gear mechanism, a rotation-linear conversion mechanism, an orthogonal conversion mechanism, and a frame having a throttle in a vertical direction. A drive gear fixed to a rotating shaft is connected to a rotation-linear conversion mechanism via the gear mechanism, and both cam plates of the rotation-linear conversion mechanism are moved in parallel in the same direction by the rotation force of the motor, and the cam A moving body having a cam groove provided on a plate and a pin loosely inserted into a throttle provided on the frame is moved up and down by the pin and the cam groove. (2) In the punching device according to (1), a cam groove provided in each of the cam plates is formed, and the moving body having a pin that is loosely inserted in the cam groove is rotatable with the drive gear at a high speed. A boring body and a boring body guide are connected by a mechanism. (3) In the punching device according to the above (1), a paper holding plate is formed by fixing a paper holding plate to the movable body having a cam groove provided in each of the cam plates and having a pin that is loosely inserted into the cam groove. It is characterized in that it is a guide for use. (4) In the punching device described in (1) above, the cam groove is shaped, and the moving body is a paper push-up body composed of a spring plate provided with a die. (5) In the punching device according to (1), the moving body and the cam groove are all the moving body and the cam groove according to the second to fourth aspects, and the timing of pinching and punching of paper coincides. The cam grooves are arranged as described above. (6) The boring device according to the above (2) or (5), wherein the blade portion of the boring body is formed by arranging any number of substantially U-shaped blades on the circumference of the blade. And (7) In the punching device according to the above (2) or (6), the paper setting mechanism is constituted by a support frame having a paper loading plate and a lower rubber bush. (8) In the punching device according to the above (2) or (6), one boring body is provided, a die having a long lower rubber bush is formed on the supporting frame, and the supporting frame is formed into the boring body. It is characterized in that it can be moved. (9) In the punching device according to the above (2) or (6), a spring-biased eject pin is arranged inside the cylindrical portion connected to the blade portion of the boring body so that the paper can be pushed out. Features.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIGS. 1 to 4 are side views of a first embodiment of a punching device according to the present invention. FIG. 1 is a front view of a first embodiment of a punching device according to the present invention. FIG. 2 is a paper holding stroke diagram of the first embodiment in the punching device of the present invention. FIG. 3 is a diagram showing a boring process of the first embodiment of the drilling apparatus according to the present invention. FIG. 4 is a view showing the end state of the entire stroke of the first embodiment in the drilling device of the present invention.

The punching device of the present invention comprises a frame, a driving source, a gear mechanism, a rotation-linear conversion mechanism, an orthogonal conversion mechanism, a paper holding mechanism, a hole punching mechanism, and a paper lifting mechanism. The paper holding mechanism and the paper lifting mechanism constitute a paper holding mechanism.

The frame includes a gear mechanism (4 to
6, 8 to 10), rotation-linear conversion mechanisms (13, 14, 134, 135), and orthogonal conversion mechanisms (18, 20, 22, 24, 26, 115, 11).
6, 117, 119, 120, 121, 123) and a main frame 98 for storing a paper holding mechanism (88) serving as one holding mechanism, and a support frame for storing a paper lifting mechanism (125) serving as the other holding mechanism. 124.

Various types of motors 1 are used as the driving source.
1 can be adopted. In particular, a DC motor that can take a rotational torque substantially linearly with respect to an input current is preferable. A motor serving as a driving source is fixed to the bracket so as to mesh with the gear mechanism.

The gear mechanism includes a driving gear 3 fixed to the rotating shaft 2 of the motor 11, a large-diameter intermediate gear 4 meshed with the driving gear 3, and a small-diameter intermediate gear 5 integrally formed therewith. A first driven gear 6 meshed with the small-diameter intermediate gear 5, a second driven gear 8 meshed with the drive gear 3,
A wide relay gear 10 meshed with the second driven gear 8 and a third driven gear 9 meshed with the wide relay gear 10.

The gear mechanism including the large-diameter intermediate gear 4 and the small-diameter intermediate gear 5 integrally formed therewith and the first driven gear 6 reduces the rotation of the rotating shaft 2 of the motor 11 and transmits it to the first pinion 13. The reduction gear mechanism 7 is configured to
The configuration is such that the rotation torque of the first pinion 13 increases even if the rotation torque of the first pinion 13 is small.

The second and third driven gears 8 and 9 are formed to have substantially the same diameter as the wide relay gear 10 and substantially rotate the driving gear 3 fixed to the rotating shaft 2 of the motor 11. Is transmitted to the third driven gear 9 without remarkably decelerating only by converting into the ratio of the number of teeth of the driving gear 3 and the number of teeth of the second driven gear 8. Thereby, the second and third driven gears 8 and 9 rotate at a higher speed than the first driven gear 6. Second and third driven gears 8,
Numeral 9 is loosely fitted to the boring bodies 30 and 31 outside the first cylindrical portion 32 so as to be movable in the length direction and non-rotatable in the circumferential direction. For this reason, the boring bodies 30 and 31 rotate at high speed, and can perform a boring operation favorably. Both boring bodies 30, 31 are configured in the same shape.

The wide relay gear 10 has a width in the rotation axis direction.
The second and third driven gears 8 and 9 are formed to have a width which covers the vertical movement range of the second and third driven gears 8 and 9 accompanying the vertical movement of the boring bodies 30 and 31.

The rotation-linear conversion mechanism is shown in FIGS. 1 to 4 and FIG. FIG. 12 is a view showing an embodiment showing a parallel movement mechanism of both cam plates in the punching device of the present invention.

A first pinion 13 provided on the rotating shaft of the first driven gear 6, a second pinion 134 meshed with the first pinion 13, and first and second cams meshed with both pinions. It consists of plates 16 and 17. Both pinions are formed in the same shape. In addition, each pinion 13, 13
The first and second racks 14 and 135 meshing with the fourth rack 4 are also formed in the same shape. Thereby, each pinion 13, 13
The first and second cam plates 16 and 17 provided on each of the racks 14 and 135 meshing with 4 move in parallel at the same speed and synchronously. As a result, the throttle 1 of the frame
Pins 115-1 which move up and down 03-107 and follow the cam grooves 18, 20, 22, 24 of the cam plates 16, 17 respectively.
The moving body provided with 117, 119 to 121, and 123 can move up and down in a well-balanced manner without kinking. The racks 14 and 135 can be provided at any locations other than the cam grooves of the cam plates 16 and 17.

The moving body includes a boring body 30, 31 of a boring mechanism interlocking with a pin and a boring body guide body 5.
There are guide members 64 and 65 for the paper holding plate of the four paper holding mechanism, and a paper lifting body 126 of the paper lifting mechanism 157.

The orthogonal transformation mechanism includes two cam plates 16 and 17 having a plurality of types of cam grooves 18, 20, 22, 24 and 26, and pins guided by the cam grooves 18, 20, 22 and 24. 115-1117, 119-121, 1
A guide body 54 for the boring body provided with 23, guide bodies 64 and 65 for the paper holding plate, and a paper push-up body 125 provided with the pin support member 131.

When the boring bodies 30 and 31 are moved in one stroke,
Basically, the two cam plates 16 and 17 are substantially V-shaped as the hole-forming cam grooves 18 and 20 so that a predetermined position at which paper can be inserted, a position at which the paper is pierced, and a predetermined position at which the paper can be discharged can be taken. It is necessary that a U-shaped groove is formed. The opening angle of the “V” can be arbitrarily set according to design matters such as the rotation torque of the motor 11 and the operation strokes of the cam plates 16 and 17.

FIG. 5 is a cross-sectional view of the punching device of the present invention as viewed from the front along the cutting line in FIG. FIG. 6 is a rear view with respect to the front view of FIG. 1 in the punching device of the present invention.

According to one embodiment of the present invention shown in FIGS. 1 to 6, the boring body cam groove has a horizontal groove formed on both sides of the V-shaped groove for acceleration and timing. Is formed.

The guide members 64 and 65 for the paper pressing plate can be set at a predetermined position where paper can be inserted, a position where the paper pressing operation is performed, and a predetermined position where paper can be discharged in one stroke.
Basically, substantially V-shaped grooves are formed on both the cam plates 16 and 17 as the paper holding plate cam grooves 22 and 24. The opening angle of the "V" can be set arbitrarily according to design matters such as the rotation torque of the motor and the operation stroke of the cam plate. According to one embodiment of the present invention shown in FIGS.
A horizontal groove is formed at the tip of the V-shaped groove in order to provide an operation margin so that the paper can be reliably pressed down in cooperation with the lower paper lifting body even when the thickness of the laminated paper is small. It is formed in the shape which was made.

The hole boring mechanism has a blade portion 36 for drilling at one end, shaft portions 40 and 41 at the other end, and a first cylindrical portion 32 and a second cylindrical portion having different inner diameters between both ends. 34, a boring body 30, 31 having a flange 38 on the outside of the substantially middle portion, and a step portion 44 on the lower end of the small diameter portion on the inside, and being loosely inserted into the boring body, and being spring-loaded on the substantially middle portion. 42, the upper end retaining portion 50 is secured to the step 44 of the boring body by eject pins 46, 47, and the inner step 44 of the boring body and the eject pins 46, 47 The compression spring 48 provided between the spring plate 42 and the pins 115 to 117 loosely inserted into the boring body cam grooves 18 and 20 of the cam plates 16 and 17 are accommodated.
A boring body guide 54 attached to the flange 38 of the boring body 30, 31 for supporting the body 6, 98 with the body frame 98 and the side plate frame 102. The slide contact surface of the boring body guide 54 with the cam plates 16 and 17 is formed as a plane having an area large enough to allow a stable sliding operation.

From this, the guide body 54 for the boring body is used.
Is preferably a rectangular parallelepiped or a cube.

The retaining portion 5 of the eject pins 46 and 47
0 is a projection of a predetermined width within the circumference,
It is housed in an operation slit different from this through an insertion slit on the inner side of the cylindrical portions 0 and 31 so as to be vertically movable.

The flange 38 is divided into two parts.
After the hole bodies 30 and 31 are stored, they can be fitted and fixed. The boring bodies 30, 31 and the flange 38 are loosely fitted so as to be rotatable with respect to each other. The shaft portions 40 of the boring bodies 30 and 31 are guided by openings of the bracket 12, and the first cylindrical portion 32 is similarly guided by guide bushes 52 and 53 attached to the main body frame 98.

The paper pressing mechanism has a sliding arm 74 for pressing and supporting the paper pressing plates 16 and 17 of the cam plates 16 and 17 on the main body frame 98 and the side plate frame 102 on the outside, and a guide post 78 on the top. Guide members 64 and 65 formed with a step portion 82 for locking the retaining portion 76 of the paper holding plate, and a retaining portion 76 at one end, and is fixed to the opening of the paper retaining plate 88 at the other end. A guide post 78 having a projection 84 and a bent piece in the length direction of the main body frame 98 are provided.
An opening is formed in a portion of the base 31 facing the blade portion 36, upper rubber bushes 93 and 94 are attached to the opening, and an opening is provided for loosely inserting guides 95 to 97 screwed to the body frame 98. A substantially plate-shaped paper pressing plate 88; and the stepped portions 8 of the paper pressing plate guides 64 and 65 mounted outside the guide columns 78.
2 and a compression spring 86 mounted between the paper pressing plate 88.

The sliding surfaces of the sliding arms 74 of the paper pressing plate guides 64 and 65 with the cam plates 16 and 17 are formed as flat surfaces having an area large enough to allow a stable sliding operation.

The paper lifting mechanism includes a lower rubber bush 132, one end of which is screw-fixed to the support frame 124 and which is provided to face the blade 36 of the boring body 30, 31.
Substantially plate-shaped spring member 126 having a die 127 with 33
And a throttle 10 formed on the back plate 99 of the main body frame 98 in the paper push-up body cam groove 26 of the first cam plate 16.
And a pin support member 131 for supporting the fifth pin 123 loosely inserted through the pin 5 and fixed by screws. The cam groove 26 for the paper push-up body is formed in a shape, and the horizontal groove portion is formed wider than the other groove portions. This is to absorb variations in the thickness of the paper laminated in the horizontal groove portion. (Relationship between each cam groove position and each mechanism) According to the first embodiment of the punching device of the present invention shown in FIGS.
The relationship between each cam groove position and each mechanism is set as shown in FIG. 14 so that the following operation is performed during the stroke period in one left and right direction of FIG.

FIG. 14 is a diagram showing a vertical movement relationship of a pin with respect to one stroke of a cam plate of the punching device according to the present invention, that is, a correspondence relationship between cam grooves.

In FIG. 14, the S stroke represents the operation stroke of the cam plate, the A stroke represents the operation stroke of the boring body and the boring body guide, and the B stroke represents the operating stroke of the paper holding plate guide. , C stroke represent the operation stroke of the paper lifting body. Each of the cams is positioned so that the paper press mechanism and the paper push-up mechanism are initial positions where paper can be inserted, that is, the pins of each mechanism are positioned at substantially the right end or the left end in FIG. 1 of the corresponding cam groove. It remains in a state where the groove and each mechanism are arranged in relation to each other. When a sensor (not shown) detects that paper has been inserted between the paper holding mechanism and the paper lifting mechanism, a control device (not shown) operates the motor 11 to operate the pinions 13 and 134 and the racks 14 and 135. Cam plate 1 through
Slides 6 and 17 are started to slide in one direction. In the S1 stroke of one stroke of the cam plates 16 and 17, the pins 115 to 117 of the boring bodies 30 and 31 move along the A1 stroke, which is the horizontal groove portion of the boring body cam groove A, and guide the paper holding plate. The pins 119 to 121 of the bodies 64 and 65 move in a B1 stroke which is a descending groove of the cam groove B for the paper holding plate,
The pin 123 of the paper push-up body 125 moves in a C1 stroke, which is a rising groove portion of the paper push-up body cam groove C. In the S2 stroke following the S1 stroke in one stroke of the cam plates 16 and 17, the pins 115 to 1 of the boring bodies 30 and 31 are used.
17 moves the A2 stroke which is the descending groove portion of the boring body cam groove A, and the pins 119 to 119 of the paper holding plate guides 64 and 65 move.
The reference numeral 121 moves along a B2 stroke which is a horizontal groove of the paper holding plate cam groove B, and the fifth pin 123 of the paper lifting body 125 moves along a C2 stroke which is a horizontal groove of the paper lifting cam groove C.

In the step S2, the upper rubber bushes 93 and 94 of the paper pressing plate 88 of the paper pressing mechanism and the lower rubber bushes 132 and 133 of the spring member 126 of the paper pressing mechanism hold the paper so as not to rotate. At the same time, the paper is bored by the blade portion 36 of the boring mechanism. In the S3 stroke following the S2 stroke of one stroke of the cam plates 16 and 17, the pins 115 to 1 of the boring bodies 30 and 31 are used.
17 moves the A3 stroke which is the ascending groove portion of the boring body cam groove A, and the pins 119 to 119 of the paper holding plate guides 64 and 65 move.
Reference numeral 121 denotes a B3 stroke which is a horizontal groove of the paper holding plate cam groove B, and the fifth pin 123 of the paper lifting body 125 moves a C3 stroke which is a horizontal groove of the paper lifting cam groove C.

In step S3, the upper rubber bushes 93 and 94 of the paper pressing plate 88 of the paper pressing mechanism and the lower rubber bushes 132 and 133 of the spring member 126 of the paper pressing mechanism are sandwiched so as not to rotate the paper. At the same time, the blade 36 of the boring mechanism is pulled out of the perforated hole. In the S4 stroke following the S3 stroke in one stroke of the cam plates 16 and 17, the pins 115 to 1 of the boring bodies 30 and 31 are used.
17 moves the A4 stroke, which is the horizontal groove portion of the boring body cam groove A, and the pins 119 to 119 of the paper holding plate guides 64 and 65 move.
Reference numeral 121 moves along a B4 stroke which is an ascending groove portion of the paper holding plate cam groove B, and the fifth pin 123 of the paper pushing up body 125 moves along a C4 stroke which is a descending groove portion of the paper pushing up cam groove C.

At the end of the S4 stroke, the hole punching mechanism is returned to the initial state, and the paper pressing mechanism and the paper lifting mechanism are returned to the initial positions where the paper can be extracted. (Operation of Each Mechanism) Hole Boring (Punching) Mechanism: The rotational torque of the motor 11 rotating under the control of the control device is transmitted to the second driven gear 8 via the driving gear 3 and further to the third via the wide relay gear 10. It transmits to the driven gear 9 and rotates the boring bodies 30 and 31 linked with the second driven gear 8 and the third driven gear 9 at high speed. At this time, as described above, the second and third driven gears 8 and 9 can move in the length direction outside the first cylindrical portion 32 and rotate in the circumferential direction on the boring bodies 30 and 31. It is loosely fitted. From this initial state, in the S1 stroke of one stroke of the cam plates 16 and 17, the pins 115 to 117 provided in the boring body guide 54 move in the horizontal groove portion A1 of the boring body cam groove A. , The boring bodies 30 and 31 change while maintaining the initial height position. Cam plate 16, 1
7, the pins 115 to 117 provided on the boring body guides 54 and 55 move in the descending groove portion A2 of the boring body cam groove A in the S2 stroke of one stroke.
0 and 31 advance downward while making a hole in the paper as shown in FIG. 10, and complete the hole in the paper as shown in FIGS. 129
And the descent ends.

During the lowering, the eject pins 46 and 47 are pushed back into the second cylindrical portion 34 while compressing the compression spring 48 by the resistance of the paper until the paper hole is completed.

When the perforation is completed, the resistance of the paper is eliminated, so that the eject pins 46 and 47 are pushed out toward the blade portion 36 by the spring force of the compression spring 48, and the perforated paper is discharged below the die 127 at the same time.

S in one stroke of the cam plates 16 and 17
In the third stroke, the pin 115 provided on the boring body guide 54 is used.
117 is the ascending groove portion A3 of the boring body cam grooves 18, 20
Is moved, so the boring bodies 30 and 31 that have finished boring
Of the paper rises out of the hole in the paper.

S in one stroke of the cam plates 16 and 17
In the fourth stroke, the pin 115 provided on the boring body guide 54 is used.
Since 117 moves in the horizontal groove portion A4 of the boring body cam groove A, the boring bodies 30 and 31 maintain the initial height position and move to the standby position for the next return stroke.

The two boring bodies 30, 31 are provided with the cam grooves 18, 2
0 and the throttles 104 and 106 synchronize the operation. In the illustrated embodiment, there are two boring bodies, but one boring body or two or more boring bodies can be similarly arranged.

FIG. 7 is a view showing an embodiment of the punching device according to the present invention in which the paper is fed into the holding mechanism.

In the S1 stroke of one stroke of the cam plates 16 and 17 from the initial state shown in FIGS. 1 and 7, the pins 1 provided on the sliding arms 74 of the paper holding plate guides 64 and 65 are used.
Since 19 to 121 move in the descending groove portion B1 of the cam groove B for the paper presser plate, the guides 64 and 65 for the paper presser plate descend from the initial height position. Accordingly, the compression spring 8
The guide column 78 held at the position 6 and the paper pressing plate 88 held at the tip thereof also descend. In the middle of this process, the upper rubber bush 9
3, 94 contact the upper surface of the paper. From this state, the paper holding plate guides 64 and 65 further descend while compressing the compression spring 86 as shown in FIG. 8 or FIG.

FIG. 8 is a view showing an embodiment in which a large number of sheets are held by the holding mechanism in the punching device of the present invention. FIG. 9 is a view showing an embodiment in which a small number of sheets are pinched by the pinching mechanism in the punching device of the present invention.

S in one stroke of the cam plates 16 and 17
In the two strokes, the pins 119 to 121 provided on the guide members 64 and 65 for the paper holding plate are moved to the horizontal grooves B of the cam groove B for the paper holding plate.
Since the sheet 2 is moved, the paper holding plate guides 64 and 65 maintain the state in which the paper is sandwiched in cooperation with the paper lifting body 125 as shown in FIG. 8 or FIG.

S in one stroke of the cam plates 16 and 17
In the three strokes, the paper is held in a state following the S2 stroke.

S in one stroke of the cam plates 16 and 17
In the fourth stroke, the pins 119 to 121 provided on the guides 64 and 65 for the paper presser are moved upward by the rising groove B of the cam groove B for the paper presser.
4, the guides 64, 65 for the paper presser plate return to the initial height position, and move to the standby position for the next return stroke.

The operation of the guides 64, 65 for both paper pressing plates is synchronized by the cam grooves 22, 24 and the throttles 103, 107. In the illustrated embodiment, there are two guides for the paper presser plate, but one guide or two or more guides can be similarly arranged.

Paper lifting mechanism: One end of the spring member 126 is fixed to the support frame 124 by a screw, and the other end is bent and fixed to one end of the pin support member 131 by a screw. The fifth pin 123 is fixed to the other end of the pin support member 131. The fifth pin 123 is connected to the first pin 123 through the throttle 105 of the rear plate 99 of the main body frame 98.
The paper push-up body cam groove 26 of the cam plate 16 is loosely fitted to the position shown in FIG. The groove width of the paper push-up body cam groove is C2 shown in FIG.
The groove width in the stroke and the C3 stroke is wider than the groove width in the C1 and C4 strokes. That is, even if the thickness of the stacked papers held by the holding mechanism is different, the groove width has a wide margin so that it can be sufficiently held in any case.

From the initial state, in the S1 stroke of one stroke of the first cam plate 16, the fifth pin 123 moves in the rising groove C1 of the cam groove C for the paper push-up body. The spring member 126 rises from the initial height position in a cantilever state by the spring force. The lower rubber bushes 132 and 133 provided on the die 127 of the spring member 126 with this rise move from the position of FIG.
Alternatively, the paper is raised to the position shown in FIG.

S2 of one stroke of the first cam plate 16
In the stroke, since the pin 123 moves in the substantially horizontal groove portion C2 of the cam groove C for the paper push-up body, the lower rubber bush 132,
Reference numeral 133 denotes the last state of the step C1, that is, the state in which the paper is continuously pushed up. In this C2 stroke, the boring mechanism transits from the state of FIG. 2 to the states of FIGS. 3 and 11 via the state of FIG.

FIG. 10 is a view showing an embodiment of the drilling device according to the present invention, showing an intermediate state of a boring process. FIG. 11 is a view showing an embodiment of the boring device according to the present invention, which shows a finished state of the boring stroke.

S3 of one stroke of the first cam plate 16
In the stroke, since the pin 123 moves in the substantially horizontal groove portion C3 of the cam groove C for the paper push-up body, the lower rubber bush 132,
133 keeps the final state of the stroke of C2, that is, the state of continuously pushing up the paper.

In the C3 stroke, the boring mechanism returns from the state of FIGS. 3 and 11 to the state of FIG. 2 via the state of FIG.

S4 of one stroke of the first cam plate 16
During the stroke, the lower rubber bushes 132, 133
In the final state of the stroke, that is, in the state of pushing up the paper, the pin 123 performs the reverse operation of the C1 stroke in which the pin 123 moves in the descending groove portion C4, and returns to the state of FIGS. 4 and 7 and enters the standby state for the return stroke. Transition and stop.

Upper and lower rubber bushes 93, 9
Reference numerals 4, 132, and 133 have a function of preventing the paper from rotating when the boring operation is performed. The inner diameter of the rubber bush is formed about 0.1 mm larger than the outer diameter of the blade portion of the bore.

The blade portion of the boring body: the boring body 3 shown in FIG.
The blade portions 36 of 0 and 31 have a form of one blade or two or more blades. FIGS. 13A, 13B, and 13C show an embodiment having two blades. The blade is preferably formed in a substantially U-shape so that the blade is left and right equally with respect to the center line in the longitudinal direction, and a point in contact with the paper becomes a point in principle.

FIGS. 13 (a) to 13 (f) are views showing an embodiment of the blade portion in the drilling device of the present invention. FIG.
(A), (b), and (c) are examples of two blades. Slits 114 and 145 are formed between the two blades, while the inner sides of the blade portions 140 and 141 are cut, and the outer surfaces of the outer portions remain cylindrical.

The blades 140 and 141 have slits 144,
By providing the 145, the perforated paper is easy to fall and is formed evenly on the left and right with respect to the center line in the longitudinal direction. And the harmful effects of using the cutting edge in only one direction can be suppressed. Also,
Since the cutting edges 142 and 143 come into contact at one point of the paper in principle, the contact area can be reduced, the generation of heat can be reduced, and the paper can be easily cut because it comes into contact at one point.
Further, since the cutting edge is formed in a substantially U-shape, it can be cut in the same manner from any of the left and right directions. In a device employing a necessary mechanism, the two-blade or one-blade manufactured on the premise that the motor rotates forward and reverse, that is, the rotation direction is alternately changed, can be said to be optimal. By using a blade as shown in these embodiments, the life of the blade is extended about twice as compared with the conventional single blade or zero blade.

(Second Embodiment) FIGS. 13 (d), (e),
(F) shows an example of a single blade. A blade 140 is provided below the second cylindrical portion 34 for one blade. The form of the cutting edge and the like are the same as those in the two-blade embodiment.

Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 15 is a side view of a second embodiment of the punching device according to the present invention. FIG. 16 is a view showing an embodiment of a clamping mechanism according to a second embodiment of the punching device of the present invention. FIG. 17 shows a second example of the drilling device according to the present invention.
FIG. 4 is a diagram illustrating an embodiment of the embodiment in a state where paper is fed into a holding mechanism. FIG. 18 is a diagram showing an embodiment in which a large number of sheets are pinched by the pinching mechanism according to the second embodiment in the punching device of the present invention.

The second embodiment is constructed as shown in FIGS. 15 and 16, and the portions above the line DD in FIGS. 15 and 16 are shown in FIGS. The configuration is the same. The second embodiment has a configuration below the line DD in the drawing,
That is, only the paper setting mechanism has a feature.

The dies 127, 128 having the lower rubber bushes 132, 133 at predetermined positions on the support frame 161.
Are formed. The paper stacking plate 160 is formed of a spring plate, and has an opening having an inner diameter larger than that of the lower rubber bushing 132, 133, and is fixed to the support frame 161 in a cantilever manner. I have.

In a state where no paper is loaded, as shown in FIG. 16, the upper surface of the lower rubber bush 132 is
The upper surface 60 is offset so as to be lower by a distance corresponding to the predetermined angle θ.

In this state, the upper surface of the lower rubber bush 132 is set to be lower than the upper surface of the paper stacking plate 160 even when paper is loaded as shown in FIG.

When the paper holding plate 88 is lowered by the driving of the motor from the state of the above-mentioned paper setting and the paper is pressed against the support frame 161 as shown in FIG.
0 is deflected by its elasticity and finally the lower rubber bush 13
2 and the upper rubber bush 93 of the paper pressing plate 88 hold the paper elastically. In this state, the boring process is performed.

Since the lower rubber bush is fixed to the support frame in the apparatus of the present invention shown in the second embodiment, members such as the paper push-up body 125 can be omitted and the cost is lower than that of the first embodiment. Can be configured. Further, the mechanism is simplified, and failures can be reduced.

(Third Embodiment) FIG. 19 is a side view of a third embodiment of the punching apparatus according to the present invention.

A third embodiment of the present invention will be described with reference to FIG.

The third embodiment is a one-hole punching apparatus,
15, the portion corresponding to the portion above the line DD in FIG. 15 is the same as in the second embodiment described above with reference to FIGS.
And the like. The third embodiment is the same as the second embodiment, except for the portion below the line DD in FIG.
That is, the paper setting mechanism has a feature.

The support frame 161 is connected to the main body frame 98.
163, 1 guided by fixing bolts
64, and dies 127, 128 of the same shape provided with a long lower rubber bush 132 provided in a direction corresponding to the slits 163, 164, a stopper 165 and a movable stopper 166 for aligning the paper, An operation unit 167 is provided. When the operation unit 167 is operated manually or by an electric mechanism, the support frame 161 can slide left and right to make a hole at an arbitrary position in the paper provided between the stoppers. According to the third embodiment of the present invention, the configuration becomes extremely simple, and a hole can be formed at an arbitrary position on the paper.

[0075]

As described above, according to the present invention, the following effects can be obtained. (1) Since the rotation of the motor is decelerated by the gear mechanism and transmitted to the rotation-linear conversion mechanism, the cam plate can be translated sufficiently strongly even if the output of the motor is small. And the boring body, the guide for the paper presser plate, and the paper push-up body substantially provided with the pin to be loosely inserted into the main body. (2) Since two cam plates having a cam groove are arranged along a frame and the frame has a throttle, both pins provided on both sides of each moving body are moved right and left in the traveling direction by the cam groove and the throttle. Since the moving bodies are moved in a well-balanced manner, malfunction of each moving body does not occur. (3) The boring body is rotated at high speed by the driven gear that is vertically and non-rotatably locked to the first cylindrical portion, so that boring can be performed regardless of the number of sheets. (4) The paper can be pinched by the paper holding mechanism or the paper lifting mechanism or the cooperation of both, so that a large number of sheets can be punched at a time without being limited by the stacking thickness of the paper at the time of punching. can do. (5) Since each cam groove of the cam plate is formed so that the timing for holding the paper and the timing for punching the paper can be appropriately set, the timing for inserting and removing the paper is sufficiently secured. The hole can be drilled while holding the paper in the shape. (6) Since the horizontal groove portion of the cam groove for the paper push-up body of the cam plate is formed wide, the paper push-up mechanism and the paper hold-down mechanism can hold the paper regardless of the thickness of the paper. . (7) Since the paper setting mechanism can be composed of a support frame having a paper loading plate and a lower rubber bush, the configuration can be simplified and failures can be reduced. (8) By providing one boring body, forming a die having a long lower rubber bush on the supporting frame, and making the supporting frame movable with respect to the boring body, the configuration can be simplified. The hole can be pierced at any position of the paper. (9) A cam plate is slidably provided on the rotating shaft of the motor via a rotation-linear conversion mechanism, and a boring body is provided on the rotating shaft of the motor so as to be meshable. Since the U-shaped blade is provided, the blade is suitable for the mechanism of the present invention, and the life of the blade is extended. (10) The cam groove for raising and lowering the boring body includes a horizontal portion having a predetermined length, followed by a V-shaped portion having a V-shape, and then a horizontal portion. The cam groove for generating the force for the motor has a configuration in which there is an inclined portion, then a horizontal portion, and then an inclined portion. Before applying the force, the holding member generates a force for holding the paper in the inclined area by the motor, and then holds the force in the horizontal cam groove, and while the holding force is held constant, the boring body is formed. Performs a punching operation in the V-shaped region. Therefore, the load applied to the drive source is averaged, and the peak of the load can be kept low, whereby the power saving of the device can be achieved. Further, since the size of the motor can be reduced, the size of the device can be reduced and the manufacturing cost can be easily reduced.

[Brief description of the drawings]

FIG. 1 is a side view of a first embodiment of a punching device according to the present invention.

FIG. 2 is a view showing an embodiment of a paper pressing stroke of the first embodiment in the punching device of the present invention.

FIG. 3 is a view showing an embodiment of a boring stroke of the first embodiment in the drilling device of the present invention.

FIG. 4 is a view showing an embodiment of the drilling device according to the present invention in an end state of all the strokes of the first embodiment.

FIG. 5 shows a first embodiment of the drilling device according to the invention, FIG.
FIG. 2 is a cross-sectional view as viewed from the front side along a cutting line in FIG.

FIG. 6 is a rear view of the first embodiment of the punching device of the present invention with respect to the front view of FIG. 1;

FIG. 7 is a view showing an embodiment of the first embodiment of the punching device according to the present invention, in which the paper is fed into the holding mechanism.

FIG. 8 is a diagram showing an embodiment in which a large number of sheets are pinched by the pinching mechanism in the first embodiment of the punching device of the present invention.

FIG. 9 is a view showing an embodiment in which a small number of sheets are pinched by the pinching mechanism of the first embodiment in the punching device of the present invention.

FIG. 10 is a view showing an embodiment of the drilling device according to the first embodiment of the present invention, which illustrates an intermediate state of a boring stroke;

FIG. 11 is a view showing an embodiment of the first embodiment of the drilling apparatus according to the present invention, showing an end state of the boring stroke.

FIG. 12 is a view showing an embodiment of a parallel moving mechanism of both cam plates according to the first embodiment of the punching device of the present invention.

FIG. 13 is a view showing one embodiment of a blade portion in the punching device of the present invention.

FIG. 14 is a view showing a correspondence relationship between a cam groove and one stroke of a cam plate of the punching device according to the present invention.

FIG. 15 is a side view of a second embodiment of the perforation apparatus of the present invention.

FIG. 16 is a view showing an embodiment of a clamping mechanism according to a second embodiment of the punching device of the present invention.

FIG. 17 is a view showing an embodiment of the punching device according to the second embodiment of the present invention in which the paper is fed into the holding mechanism.

FIG. 18 is a diagram showing an embodiment in which a large number of sheets are pinched by the pinching mechanism of the second embodiment in the punching device of the present invention.

FIG. 19 is a side view of a third embodiment of the perforation apparatus of the present invention.

FIG. 20 is a schematic front sectional view showing an embodiment of a conventional perforation apparatus.

FIG. 21 is a view showing one embodiment of a blade portion in a conventional punching device.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 punching device 2 rotating shaft 3 drive gear 4 large diameter intermediate gear 5 small diameter intermediate gear 6 first driven gear 7 reduction gear mechanism 8 second driven gear 9 third driven gear 10 wide relay gear 11 motor (DC) 12 bracket 13 th 1 pinion 14 1st rack 16 1st cam plate 17 2nd cam plate 18, 20 cam groove for boring body 22, 24 cam groove for paper holding plate 26 cam groove for paper lifting body 30, 31 boring body 32 first Cylinder part 34 Second cylinder part 36 Blade part 38 Flange 40 Shaft part 42 Spring stop 44 Step 46, 47 Eject pin 48 Compression spring 50 Detachment prevention part 52, 53 Guide bush 54 Hole guide body 56, 57 Pin storage Hole 58 Sliding surface 64, 65 Guide body for paper presser plate 66 Pin storage hole 68 Sliding surface 74 Sliding arm 76 Retaining portion 78 Guide post 82 Step portion 84 Projection 86 Compression spring 88 Paper press plate 93, 94 Upper rubber bush 95, 96, 97 Guide 98 Body frame 99 Back plate 100 Upper plate 101 Lower plate 102 Side plate frame 103, 104, 105, 106, 107 Throttle 115, 116 1st pin 117 2nd pin 119, 120 3rd pin 121 4th pin 123 5th pin 124 Support frame 125 Paper push-up body 126 Spring member 127 Die 129 Opening 131 Pin support member 132, 133 Lower rubber bush 134 Second Pinion 135 Second rack 136, 137 Rotating shaft 140, 141 Blade part 142 Blade tip 144 Slit 160 Paper loading plate 161 Support frame 163, 164 Slit 165 Stopper 166 Movable stopper 167 Operating part

Claims (9)

[Claims] 1. A motor having a motor, a gear mechanism, a rotation-linear conversion mechanism, an orthogonal conversion mechanism, and a frame having a throttle in a vertical direction, wherein a driving gear fixed to a rotation shaft of the motor is provided by the gear. It is connected to a rotation-linear conversion mechanism via a mechanism, and both cam plates of the rotation-linear conversion mechanism are moved in parallel in the same direction by the rotation force of the motor, and are provided in a cam groove provided in the cam plate and the frame. A moving body having a pin loosely inserted into the throttle is moved up and down by the pin and the cam groove. 2. The perforating apparatus according to claim 1, wherein the movable body having the shape of the cam groove provided in each of the cam plates and having a pin loosely inserted into the cam groove is rotated at high speed by the drive gear. A boring device, wherein the boring body and the boring body guide are connected to each other by a gear mechanism. 3. A paper punch according to claim 1, wherein said cam groove provided in each of said cam plates is shaped, and said moving body provided with a pin to be loosely inserted into said cam groove is fixed to a paper pressing plate. A punching device characterized in that it is a guide for a holding plate. 4. The perforating apparatus according to claim 1, wherein said cam groove is shaped, and said moving body is a paper push-up body comprising a spring plate provided with a die. 5. The perforating apparatus according to claim 1, wherein the moving body and the cam groove are all of the moving body and the cam groove according to claim 2 to 4, and the timing of pinching the paper and the timing of punching coincide with each other. A perforation device, wherein the cam groove is arranged so as to perform the operation. 6. The boring device according to claim 2 or 5, wherein a plurality of substantially U-shaped blades of the boring body are arranged on the circumference of the boring body. Drilling device characterized. 7. The perforating apparatus according to claim 2, wherein the paper setting mechanism is constituted by a support frame having a sheet stacking plate and a lower rubber bush. 8. The drilling device according to claim 2, wherein one of the boring bodies is provided, a die having a long lower rubber bush is formed on the supporting frame, and the supporting frame is formed by the boring body. A perforation device characterized by being movable with respect to a hole. 9. The punching device according to claim 2, wherein the eject pin, which is spring-biased, can be pushed out of the paper inside the cylindrical portion connected to the blade portion of the boring body. Drilling device characterized.