JP2001009791A - Drilling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a punch from receiving influence of inertial force of a rotational driving means to move the punch even when the punch is moved at high speed. SOLUTION: A drilling device 30 is devised to drill a hole on a drilling material such as a sheet, etc., by making a punch 61 and a die 54 engaged with each other. In this case, it is furnished with a rotational driving means 33 and a working means 91 to transmit movement in a direction to cross with the moving direction of the punch 61 by this rotational driving means 33 by converting it to the moving direction of the punch 61.

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 punching a punched material such as a sheet by engaging a punch 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 paper punching apparatus suitable for use in an image forming apparatus such as a composite apparatus.

[0002]

2. Description of the Related Art Conventionally, a drilling device of this type is provided with a pair of eccentric cams 23, 23 integrally on a rotating shaft 22 rotated by a motor 21, as shown in FIG. 23, 23 support both ends of a punch holding member 25 provided with a predetermined number of punches, for example, three punches 24.

When the eccentric cams 23, 23 rotate, the punch 24 is guided up and down by a guide hole 26, engages with a die 27, and forms a hole in a stopped sheet P such as paper, which is a perforated material. Dawn.

[0004]

The vertical movement distance of the punch 24 of the conventional punching device 20 is set to be slightly longer than the thickness of the sheet, so that it is much longer than the length of the sheet. short.

For this reason, when the punch 24 is continuously rotated, the conventional punching device 20 has a problem in that the punched sheet is removed before the punched sheet is removed from the punching device 20.
After punching a hole in the sheet so that there is no danger of the hole being punched again in the same sheet, the sheet is pulled out, and the punch 24 is kept away from the sheet until the next sheet is set. Need to stop in position.

However, the punch 24 moves up and down integrally with the punch holding member 25 by a reduction gear mechanism 28 for transmitting the rotational force of the motor 21, the rotating shaft 22, and the eccentric cam 23. Stop and punch 2
Even when the motor 4 is to be stopped, it is difficult to stop at the highest position due to the inertial force of the motor 21 or the like.

In addition, when the motor 21 is rotated at a high speed and the punch 24 is moved up and down at a high speed in order to increase the productivity of the drilling process, the inertia force is further increased, and the punch 24 is accurately positioned at the highest position. It was even more difficult to stop at that time.

In view of the above, the present invention ensures that the punch does not receive the influence of the inertial force of the rotary driving means for moving the punch even if the punch is moved at a high speed, so that the punch is reliably kept at the standby position. It is an object of the present invention to provide a drilling device that can perform the drilling.

[0009]

The invention according to claim 1 is
For example, as shown in FIG. 1, FIG. 14, FIG. 17, FIG. 18, and FIG. 19, the punch (61) and the die (54) are engaged to form a hole in a perforated material such as a sheet. And the rotation driving means (33) and the rotation driving means (3
Actuating means (91, 19, 291, 391, 49) for converting the movement of the punch (61) in the direction intersecting the movement direction of the punch (61) into the movement direction of the punch (61) and transmitting the converted movement.
1) A drilling device comprising:

The present invention according to claim 2 is, for example, shown in FIG.
As shown in FIG. 14 and FIG.
, 291) with a cam (44, 110, 203) and a pin (62) engaged with the cam (44, 110, 203).
And either one of the cams (44, 110, 203) and the pin (62) is rotated by driving means (33).
And the other is provided on the punch (61), and the cam (44, 110, 203) and the pin (6) are arranged in a direction intersecting the moving direction of the punch (61).
2. Drilling device according to claim 1, wherein the punch (61) is actuated by relatively moving 2).

The present invention according to claim 3 is, for example, shown in FIG.
As shown in FIGS. 14 and 17, the cams (44, 11
0, 203) is a first inclined portion (45a, 111) in which the ends approaching each other in different inclination directions are continuous.
a, 204a) and the second inclined portion (45b, 111b, 2).
04b) and the first inclined portions (45a, 111a, 20).
4a) and the cams (44, 110) connected to the ends of the second inclined portions (45b, 111b, 204b) which are spaced apart from each other, in a direction away from the inclined portions, and interlocked with the rotation driving means (33). , 203) and the linear portion (46a, 46b, 11) extending in one direction of movement of the pin (62).
2a, 112b) and the linear portion (46a, 4b).
6b, 112a, 112b) are the cams (44, 11).
The punching device according to claim 2, wherein the punch (61) is held at a position away from the material to be pierced via the other one of the pin (0, 203) and the pin (62).

The present invention according to claim 4 is, for example, shown in FIG.
As shown in FIGS. 9 and 11, the punch (61) detects the position of the punch (61) or the cam (44) when the punch (61) separates from the material to be pierced, and Detecting means (55, 5) for stopping the rotation driving means (33);
6. A drilling device according to claim 2 or 3, comprising: (6, 57, 78).

The present invention according to claim 5 is, for example, shown in FIG.
As shown in FIGS. 14 and 17, the punch (61), the die (54) and the cam (44, 110, 203).
And a plurality of sets of the pins (62), wherein the relative positional relationship between the pins (62) and the cams (44, 110, 203) is different for each set.
6. The drilling device according to claim 1.

According to a sixth aspect of the present invention, as shown in FIG. 1, for example, the cam (44) intersects the moving direction of the punch (61) in conjunction with the rotation driving means (33). Drilling device according to claim 2, 3, 4 or 5, provided on a moving body (35) moving in a direction, wherein the pin (62) is provided on the punch (61).

The present invention according to claim 7 is, for example, shown in FIG.
As shown in the figure, the cam (110) is provided on a rotating body (102) rotatable about an axis parallel to the moving direction of the punch (61) in conjunction with the rotation driving means (33), Drilling device according to claim 2, 3, 4 or 5, wherein the pin (62) is provided on the punch (61).

The present invention according to claim 8 is, for example, shown in FIG.
The pin (62) is provided on a moving body (202) that moves in a direction intersecting with the moving direction of the punch (61) in conjunction with the rotation driving means (33), and the cam ( Drilling device according to claim 2, 3, 4 or 5, wherein 203) is provided on the punch (61).

The present invention according to claim 9 is, for example, shown in FIG.
8, as shown in FIG. 19, the operating means (391, 49)
1) is linked with the punch (6)
Actuator (30) moving in a direction intersecting with the moving direction of (1)
, 401), the punch (61) and the operating body (3
01, 401) and a tiltable connection link (302, 402) connecting the punch (61) and the operating body (301, 401).
2. The drilling device according to claim 1, wherein the punch (61) drills a hole in the material to be pierced when the link (1) and the link (302, 402) are parallel to each other.

The present invention according to claim 10 is, for example, shown in FIG.
10. The drilling device according to claim 9, wherein the operating body (301) is moved by being guided by linear guide means (303), as shown in FIG.

The present invention according to claim 11 is, for example, shown in FIG.
10. The drilling device according to claim 9, wherein the operating body (401) moves by being suspended by a tiltable suspended parallel link (403, 403), as shown in FIG.

[Operation] In the drilling device according to the first aspect of the present invention, for example, FIG. 1, FIG. 14, FIG. 17, FIG.
8, as shown in FIG. 19, when the rotation drive means (33) operates, the operation means (91, 191, 291, 391, 4).
91) moves in a direction intersecting with the movement of the punch (61), and moves the punch (61). The punch (61)
Drill holes in the material to be pierced.

According to the second aspect of the present invention, for example, as shown in FIGS. 1 and 14, the operating means (91, 191) comprises a cam (44, 110) and a cam (44, 110). 110) engaging with a pin (62).

It is assumed that the cams (44, 110) are interlocked with the rotation driving means (33) and the pins (62) are provided on the punch (61).

The cam (44, 110) is driven by the rotary drive means (3).
When moved by 3), the pin (62)
Is moved in a direction intersecting the cams (44, 110) to form a hole in the material to be pierced while engaging with the die (54).

The cam (44, 110) is continuously moved by the rotary driving means (33), and the punch (61) makes a hole in the material to be pierced, and then the cam (44, 110).
By 10), it is moved in the opposite direction to the past, exits from the opened hole, and separates from the material to be pierced.

When the punch (61) separates from the material to be pierced,
The cams (44, 110) stop as the rotation drive means (33) stops. At this time, the rotation drive means (33) is driven by the inertia force of the rotation drive means (33) itself and the cams (44, 11).
There is a case where the motor rotates excessively due to the inertial force of 0).
However, since the cams (44, 110) continue to move in the same direction by an amount corresponding to the excessive rotation, the punch (61) does not move in the direction approaching the material to be pierced.

Also, for example, as shown in FIG. 17, if the pin (62) is interlocked with the rotation driving means (33) and the cam (203) is provided on the punch (61), the same applies. As the pin (62) and the cam (203) cross each other, the punch (61) makes a hole in the material to be pierced. Then, when the punch (61) separates from the material to be pierced, the pin (62) stops as the rotation driving means (33) stops. At this time, the rotation driving means (33) may be excessively rotated by the inertia force of the rotation driving means (33) itself and the inertia force of the pin (62). However, since the pin (62) continues to move by an amount corresponding to the excessive rotation, the punch (61) does not move in the direction approaching the material to be punched.

Therefore, the punch (61) is stopped and held at a predetermined position even if the rotation driving means (33) is over-rotated by inertia.

According to the third aspect of the present invention, for example, as shown in FIGS. 1, 14 and 17, the cam (44, 110, 203) is provided with the first inclined portion (45a, 1).
11a, 204a) and the second inclined portion (45b, 111).
b, 204b) and linear portions (46a, 46b, 112a,
112b, 205a, 205b), the second inclined portion (45b, 111b, 204b) and the pin (6
2) are engaged, and when one moves, the other moves, and the punch (61) moves in a direction to open a hole. Then the first
Inclined portions (45a, 111a, 204a) and pins (62)
Are engaged in the same direction, the inclination direction of the first inclined portion (45a, 111a, 204a) is different from that of the second inclined portion (45b, 111b, 204b). (61) moves in a direction to escape from the opened hole.

Then, the linear portions (46a, 112a, 20
5a) and the pin (62) are engaged with each other, even if the rotation driving means (33) is over-rotated, the linear portions (46a, 112a,
205a) and the pin (62) engage the cam (4).
4, 110, 203) and the pin (62) are allowed to move. Moreover, the punch (61) remains held at a position away from the material to be pierced.

In the punching apparatus according to the present invention, as shown in FIGS. 1, 9 and 11, for example, when the punch (61) separates from the perforated material to be punched. (61) or the position of the cam (44)
55, 56, 78), the rotation drive means is stopped.

When the detecting means (55, 56) (see FIG. 1) detects the cam (44), the moving direction of the cam (44) is detected when the apparatus is started.
56).

In the punching apparatus according to the present invention, as shown in FIGS. 1, 14 and 17, for example, a punch (61) and a die (54) and a cam (44, 110,
If there are a plurality of sets 203) and pins (62), a plurality of holes can be formed in one drilling step.

However, if a plurality of holes are drilled at the same time, a large load proportional to the number of holes is applied to the rotary drive means (33).

Therefore, the pin (62) and the cam (4)
4, 110, 203), a pin (62) and a cam (44, 110, 2) are provided for each group.
The timing of the relative movement of 03) is different, and the plurality of punches (61) sequentially punch holes in the material to be pierced, so that a large load is not applied to the rotation driving means (33).

According to a sixth aspect of the present invention, for example, as shown in FIG. 1, the cam (44) intersects the moving direction of the punch (61) in conjunction with the rotation driving means (33). Moving body (35) that moves in the direction of
When the pin (62) is provided on the punch (61), the punch (61) moves along with the forward movement of the moving body (35), punches a hole in the material to be pierced, and punches with the return movement. (61) moves to make a hole in the material to be pierced.

Even if the rotation driving means (33) is over-rotated and the cam (44) moves with it, the pin (62) and the end of the cam (44) come into contact with each other to rotate the rotation driving means (33). Is stopped.

According to a seventh aspect of the present invention, as shown in the fourteenth aspect, the cam (110) is linked to the rotation driving means (33) and the axis parallel to the moving direction of the punch (61). When the pin (62) is provided on the punch (61), the rotational force of the rotation driving means (33) is formed on the rotating body (102).
And the rotating body (102) is rotated as a rotational force.

In the punching device according to the present invention, as shown in FIG. 17, for example, the pin (62) intersects the moving direction of the punch (61) in conjunction with the rotation driving means (33). If the cam (110) is provided on the punch (61) and the punch (61) is reciprocated, the punch (6) is provided.
1) moves to make a hole in the material to be pierced.

Even if the rotation drive means (33) is over-rotated and the pin (62) moves with it, the pin (62) and the end of the cam (110) come into contact with each other and the rotation drive means (33).
Is stopped.

Since the moving body (202) linked to the rotation driving means (33) is provided with the pin (62), the moving body (202) is provided with the cam (110). As compared with the case, the inertia force of the moving body (202) is small, and the moving body (202) does not move more than necessary due to the inertial force. The punch (61) is moved.

In the piercing apparatus according to the ninth aspect of the present invention, for example, as shown in FIGS. 18 and 19, the operating body (301, 401) of the operating means (391, 491) is formed of a punch (61). When the connecting link (302, 402) moves in a direction intersecting the moving direction, the connecting link (302, 402) moves in a direction in which the punch (61) approaches the punched material while tilting and approaching the punch (61).

When the link (302, 402) and the punch (61) are parallel to each other, the link (302, 402) has moved the punch (61) the most. During this time, the punch (61) completes the drilling of the material to be pierced.

The operating body (301, 401) still moves in a direction intersecting the punch (61). Then, the connecting link (302, 402) moves the punch (61) in a direction away from the perforated material while tilting in a direction away from the punch (61).

The operating bodies (301, 401) move to a predetermined position and stop, and the punching operation by the punch (61) is completed.

The rotation driving means is over-rotated, and the operating body (30
Even if (1, 401) moves with it, the connecting link (302, 402) moves the punch (61) in a direction away from the perforated material.

The operating members (301, 401) interlocked with the rotary driving means are provided with connecting links (302, 40).
2) is tiltably connected to the moving body (35).
As compared with (see FIG. 1), the inertial force of the operating body (301, 401) is small, and the operating body (301, 401) does not move more than necessary due to the inertial force.
When (1, 401) is moved in the opposite direction, the punch (61) is quickly moved.

In the drilling device according to the present invention, for example, as shown in FIG.
1) moves by being guided by the linear guide means (303). The reaction force when the punch (61) pierces the material to be pierced is transmitted via the connecting link (302) to the operating body (301).
And is received by the linear guide means (303).

In the drilling device according to the present invention, for example, as shown in FIG.
1) moves while being suspended and guided by the suspended parallel links (403, 403).

It should be noted that the reference numerals in parentheses are provided for the sake of convenience in comparison with the drawings, and do not limit the configuration of the present invention.

[0050]

According to the first aspect of the present invention, since the operating means for operating the punch operates in a direction intersecting the moving direction of the punch, the rotary driving means has its own inertial force and the operating means. Even if over-rotation occurs due to the inertia force of the actuator, the operating means operates in the same direction by the amount of over-rotation so as not to move the punch in the direction approaching the pierced material. The punch can be reliably kept at the standby position without increasing the stopping accuracy of the driving means.

According to a second aspect of the present invention, when the punch makes a hole in the material to be pierced, separates from the material to be pierced, and stops by stopping the rotation driving means, the rotation driving means has an inertia of the rotation driving means itself. Even if the cam or the pin may over-rotate due to the force and the inertia force of the cam or the pin, the cam or the pin moves in the same direction by the amount of the over-rotation so that the punch does not move in the direction approaching the pierce material. Therefore, the punch can be reliably kept at the standby position without increasing the stopping accuracy of the rotary drive unit.

Further, even if the rotation driving means is over-rotated, the punch is not moved in the direction approaching the material to be pierced, so that the rotation driving means can be rotated at a high speed, and the drilling operation can be performed. Efficiency can be improved.

According to the third aspect of the present invention, when the cam has the first inclined portion, the second inclined portion, and the linear portion, the cam is formed by the linear portion even if the rotation driving means is over-rotated. The cam or the pin can be allowed to move while the punch is held at substantially the same height, and the punch is not moved more than necessary, so that the punching device can be prevented from being enlarged.

If the punching device according to the fourth aspect is provided with detecting means for detecting the position of the punch or cam when the punch separates from the punched material, the rotation driving means is automatically turned on. It is possible to prevent the over rotation by stopping the rotation.

Further, if the detecting means detects the cam, the moving direction of the cam can be determined by the detecting means when the apparatus is started.

When a plurality of sets of punches and dies, cams and pins are provided as in the punching device according to the fifth aspect, a plurality of holes can be punched in one punching step.

Furthermore, if the relative positional relationship between the pin and the cam is different for each set, the timing of the relative movement between the pin and the cam is different for each set, and a plurality of punches sequentially punch holes in the material to be punched. In addition, a plurality of holes can be formed even with a rotation driving unit having a small rotation torque.

According to a sixth aspect of the present invention, the cam is provided on a moving body which moves in a direction intersecting with the moving direction of the punch in conjunction with the rotary driving means, and the pin is provided on the punch. Even if the rotation driving means is over-rotated and the cam moves accordingly, the end of the cam abuts on the pin, and the rotation of the rotation driving means can be stopped.

According to a seventh aspect of the present invention, the cam is formed on a rotating body which is rotatable about an axis parallel to the moving direction of the punch in conjunction with the rotation driving means, and a pin is provided on the punch. In this case, the rotational force of the rotation driving means is transmitted to the rotating body as it is as the rotational force, and the movement of the entire apparatus can be made smooth.

According to another aspect of the present invention, the pin is provided on a moving body which moves in a direction intersecting the moving direction of the punch in conjunction with the rotation driving means, and the cam is provided on the punch. Even if the rotation driving means is over-rotated and the pin moves with it, the pin abuts on the end of the cam and the rotation driving means can be prevented from over-rotating.

Further, since a pin is provided on the moving body linked to the rotary drive means, the inertia of the moving body is smaller than when the cam is provided on the moving body, and Does not move more than necessary, and when the moving body is moved in the opposite direction to operate the punch, the punch can be moved quickly.

[0062] If the operating means has a structure in which the operating body and the punch are connected by a tiltable connection link as in the piercing device according to the ninth aspect, the punch can be moved smoothly.

According to the tenth aspect of the present invention, when the operating body is moved by the linear guide means, the linear guide means receives a reaction force due to the punching operation of the punch.
Drilling can be performed reliably.

When the operating body is suspended by a suspended parallel link that can be tilted as in the drilling device according to the eleventh aspect, the sliding resistance during movement of the operating body is reduced, and the operating body moves smoothly. Thus, the driving force of the rotation driving means can be reduced.

[0065]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A drilling device according to an embodiment of the present invention will be described below with reference to FIGS.

(First Embodiment) A drilling device 30 according to a first embodiment will be described with reference to FIGS.

First, the configuration will be described.

A motor 33 is supported by a bracket 32 on a main body frame 31 of the drilling device 30. The motor 33 is linked to the cam plate 35 by a reduction gear mechanism 34, and serves as a drive source for moving the cam plate 35 in the left-right direction in FIG.

The reduction gear mechanism 34 includes a drive gear 37 provided on an output shaft 36 of the motor 33, a large-diameter intermediate gear 38 and a small-diameter intermediate gear 39, and a driven gear having a larger diameter than the small-diameter intermediate gear 39. 40, a pinion 41 integrated with the driven gear 40, a rack 42 formed on the cam plate 35 and meshing with the pinion 41, and the like.

The cam plate 35 comprises a rack 42 and a pinion 41.
Is arranged so as to be movable along one inner side of the main body frame 31 in the shape of a rectangular tube, and the upper and lower edges have a small contact area with the main body frame 31 to reduce sliding resistance. Five convex portions 43 are formed so as to be able to move smoothly.

The cam plate 43 has three hole-like cams 44 formed at equal intervals. The cam 44 has a V-shaped portion 45 formed in a V-shape by a first inclined portion 45a and a second inclined portion 45b whose ends approaching each other in different inclination directions are continuous with each other. Inclined portion 45a and second inclined portion 45
b and the inclined portion (45)
a or 45b), and has a first linear portion 46a and a second linear portion 46b extending in the direction of movement of the cam plate.

The first inclined portion 45a is lower right, and the second inclined portion 45b is upper right. The first straight portion 46a is connected to the first inclined portion 45a, and the second straight portion 4
6b is connected to the second inclined portion 45b. Note that a cam groove may be formed instead of the cam.

A spacer 5 is provided on the lower surface of the main body frame 31.
A leg 51 is attached by a bolt 52 and a nut 53 with 0 and 50 interposed. The spacer 50 is provided to form a gap S between the lower surface 31a of the main body frame 31 and the upper surface 51a of the leg 51 to allow the sheet to pass. The leg 51 is formed with an inclined surface 51b for guiding the sheet to the gap S.

Further, three punches 61 having different pitches are provided on the main body frame 31 so as to be movable up and down by guiding the punch support holes 47 and 47. A die 54 through which the tip of the punch 61 penetrates is formed on the leg 51 facing the punch 61.

Each punch 61 is provided with an operating pin 62 that penetrates the cam 44 and penetrates a vertically oriented guide hole 48 formed in the side wall of the main body frame 31 and penetrates the through hole 63. At both ends of the operating pin 62, the operating pin 62
The retaining rings 64, 64 are provided so that the retaining rings do not fall out of the through holes 63 of the punch 61.

The cams 44 and the punches 61 are provided on the three sets of the main body frame 31, but the relative positions of the three sets are different.

That is, in the state shown in FIG. 1, the punch 61 at the left end is formed by the V-shaped portion 45 of the cam 44 and the second linear portion 46.
b, but the center punch 61 is the second punch.
The right end punch 61 faces the middle portion of the straight portion 46b, and faces the right end of the second straight portion 46b. in this way,
The reason why the relative positions of each set of punches 61 and cams 44 are different is to shift the timing of the punching operation of each punch 61 with respect to the sheet so that a load is not applied to the motor 33 at one time. is there.

A pair of cam plate detection sensors 55 and 56 for detecting the position of the cam plate 35 are provided at both ends of the lateral movement range of the cam plate 35 in the main body frame 31.

A punch detecting sensor 57 for detecting the upper end of the central punch 61 is provided on the upper part of the main body frame 31.

In the above configuration, the rotational force of the motor 33 is converted into a linear reciprocating movement force, transmitted to the cam plate 35, and
Gear mechanism 34, cam plate 35, cam 4
4, the operating pin 62 and the like constitute an operating means 91.

The operation will be described.

The cam plate 35 is located at the left end in the main body frame 31 as shown in FIGS.

At this time, the left end punch 61 is
Of the V-shaped portion 45 and the second straight portion 46b, the central punch 61 faces the middle portion of the second straight portion 46b, and the rightmost punch 61 is located at the right end of the second straight portion 46b. Facing the right end.

On the other hand, the motor 33 is stopped.

When the sheet is fed into the gap S between the main body frame 31 and the leg 51 and stopped at a predetermined position, a sensor (not shown) detects that the sheet has been fed to the punching device 30. Upon detection, the drilling device 30 is activated.

The cam plate detection sensor 55 at the left end detects the cam plate 3
5 is located to the left, the motor 33 detects the cam plate 3 by the cam plate detection sensor 55 at the left end.
5 is rotated in the direction to move it to the right.

The cam plate 35 starts moving rightward as shown in FIG. 6, and the cam 44 and the operating pin 62 of each punch 61 are moved.
Change the engagement position.

In FIG. 6, the operating pin 62 of the left end punch 61 is guided to the bottom of the V-shaped portion 45 of the cam 44, and the punch 61 first descends to the lowermost position from the other punches 61 to form holes in the sheet. It is engaged with the die 54 at dawn.

The operating pin 62 of the center punch 61 is guided to the vicinity of the valley of the V-shaped portion 45, and the punch 61 descends to the vicinity of the lowest position, finishes making a hole in the sheet, and engages with the die 54. .

The operating pin 62 of the punch 61 on the right end is the cam 4
4 and is engaged with the die 54 while making a hole in the sheet.

Thus, the drilling device 30 of the present invention is
Since not all punches 61 punch holes in the sheet at the same time, but punch holes in the sheet sequentially from the punch 61 at one end, an excessive load is not applied to the motor 33 and a small motor is used. But the hole can be drilled.

Thereafter, while the cam plate 35 is moved to the rightmost position as shown in FIG. 7, the center punch 61 and the right end punch 61 are lowered to the lowest position, and The one inclined portion 45a is brought into contact with the operating pin 62 of each punch 61 to raise each punch 61. Thereby, each punch 61 is pulled out of the die 54 and separates from the sheet.

Immediately before the cam plate 35 is moved to the rightmost position, the cam detection sensor 56 (see FIG. 1) is operated, and the fact that the cam plate 35 has started to near the right end indicates that the punch detection sensor 57 (see FIG. 1). ), The motor 33 stops.

However, the motor 33, the reduction gear mechanism 34,
The cam plate 35 cannot be stopped immediately, but slightly over-rotates and moves due to inertial force.

Since the first linear portion 46a of the cam 44 is engaged with the operating pin 62 of each punch 61, the cam plate 35
However, even if it moves to the right slightly without stopping immediately, the movement is absorbed by the first linear portion 46a. At the same time, each punch 61 is kept stopped at the highest position.

Finally, the operating pin 62 of the leftmost punch 61
Then, the left end of the first linear portion 46a abuts, the cam plate 35 is forcibly stopped, and the motor 33 and the reduction gear mechanism 34 are also forcibly stopped.

Thus, the drilling device 30 of the present invention is
Even if the motor 33, the reduction gear mechanism 34, and the cam plate 35 slightly over-rotate and move due to the inertial force, over-rotation and movement are allowed, and all the punches 61
Can be held at the highest position and not lowered, and can be reliably kept at the waiting position.

With the above operation, the drilling step is completed.

When the next sheet is fed, the cam plate 35 starts moving to the left to move to the punching step.

In this case, since the cam plate detection sensor 56 detects that the cam plate 35 has moved to the right end, the motor rotates in a direction to move the cam plate 35 to the left.

When the cam plate 35 starts to move to the left, it is at the position shown in FIG. 7, and the punch 61 at the right end faces the boundary between the V-shaped portion 45 of the cam 44 and the first linear portion 46a. However, the center punch 61 faces the middle portion of the first linear portion 46a, and the left end punch 61 is the first linear portion 46a.
Facing the left end of the.

For this reason, when the cam plate 35 moves to the left as shown in FIG. 8, holes are formed in the sheet in order from the rightmost punch 61.

Then, the cam plate 35 is in the state shown in FIG.

When the cam plate 35 is in the state shown in FIG. 5, even if the motor 33, the reduction gear mechanism 34, and the cam plate 35 are slightly over-rotated and moved by the inertial force, the over-rotation is performed. And the movement are allowed by the second linear portion 46b, and all the punches 61 are held at the highest position,
It is possible to surely stand by at the standby position without being lowered. Further, the cam plate 35 is stopped from moving by the right end of the second linear portion 46b abutting on the operating pin 62 of the punch 61 on the right end.

In the punching device 30 of the present invention, the cam plate 35 is moved to the left end or the right end at the time of starting, and the cam plate detection sensors 55 and 56 are in the detection state to determine the rotation direction of the motor 33. However, when the cam plate 35 is stopped at an intermediate position, the cam plate 35 is forcibly moved to one of the left and right ends, and then the hole is formed.

Further, only one of the cam plate detection sensors 55 and 56 may be provided. In this case, when the drilling device 30 is started, when the cam plate 35 is stopped in the middle, the cam plate 35 is always moved by the motor 33 toward the provided cam plate detection sensor 55 or 56. Then it is necessary to start the drilling process. And the reversal of the cam plate 35 counts the pulses by using the motor 33 as a pulse motor,
When the count reaches a predetermined count, the pulse motor is reversed to perform the counting.

Further, the fact that the cam plate 35 has moved to the left and right ends is, as shown in FIG.
Utilizing the fact that they are linked, the punch detection sensor 57 can detect that the central punch 61 has risen.

Also, instead of the cam plate detection sensors 55 and 56, as shown in FIGS.
May be used. The photosensor 78 has a light emitting portion 78a and a light receiving portion 78b provided on both sides of the main body frame 31 to face each other. Through holes 79, 79 are formed in the main body frame 31 so that light passes therethrough. Through holes 80 and 81 are formed in the plate 35 at intervals corresponding to the movement stroke of the cam plate 35. The through hole 80 is formed in the light emitting section 7
When the light 8a passes and is received by the light receiving portion 78b, the cam plate 35 has moved to the left end. When the light has passed through the through hole 81, the cam plate 35 has moved to the right end. Become.

In the above configuration, the rotational force of the motor 33 for operating the cam plate 35 is converted into linear motion by the pinion 41 and the rack 42, which are decelerated and rotated by the reduction gear mechanism 34, as shown in FIGS. As shown in
A female screw 71 formed at the center of rotation of the driven gear 75 of the rotational force transmission mechanism 70 and a male screw 72 screwed into the female screw 71 to protrude and retract the driven gear 75 may be converted into linear motion force.

The rotational force transmitting mechanism 70 has a drive gear 73 provided on the output shaft 36 of the motor 33, an intermediate gear 74 meshing with the drive gear 73, and a driven gear 75 meshing with the intermediate gear 74. I have. The driven gear 75 is provided with a regulating plate 76 fixed to the main body frame 31 so as not to move in the thrust direction due to a reaction when the male screw 71 is rotated.
And the regulation block 77 are received on both sides.

(Second Embodiment) A drilling device 100 according to a second embodiment will be described with reference to FIGS.

In the punching apparatus 100 of the second embodiment, instead of the cam plate 35, a rotating cam 102, which is rotatable about a shaft 101 parallel to the moving direction of the punch 61, is individually opposed to each punch 61. It is configured to be arranged in.

An operating gear 106 is provided on the shaft 101 of each rotary cam 102.

Each operating gear 106 meshes with a common toothed belt 105 meshing with a driven gear 104 of a reduction gear mechanism 103 for reducing the rotation speed of the motor 33. FIG.
As shown in FIG. 5, since the punches 61 are arranged in a straight line, the rotating cams 102 must also be arranged in a straight line.

For this reason, in FIG. 15, the central operating gear 106 is disposed so as to mesh with the linear portion of the toothed belt 105. The driven gear 104 is also disposed at a position where it meshes with the linear portion. However, the toothed belt 10
5 is the central operating gear 106 and driven gear 10
4 easily. For this reason, the linear portion of the toothed belt 105 is moved by the pressing rollers 107 and 108 to the operating gear 1.
06 and the driven gear 104 so as not to come off. Further, the toothed belt 105 is released by an idle gear 109 so that a portion on one side does not mesh with the central operation gear 106 or the driven gear 104.

A cam 110 similar to the cam plate 35 is formed on the rotary cam 102.

The cam 110 also has a first inclined portion 1 whose end portions approaching each other in different inclination directions.
A V-shaped portion 111 formed in a V-shape with the first and second inclined portions 111a and 111b;
11b and the inclined portion (1
11a or 111b), the first straight portion 112a and the second straight portion 1 extending in the direction of movement of the cam plate.
12b.

The first inclined portion 111a is lower right and the second inclined portion 111b is upper right. The first straight portion 112a is connected to the first inclined portion 111a, and the second straight portion 112b is connected to the second inclined portion 111b.

The rotating cam 102 has first and second rotating cams.
The ends of the straight portions 112a and 112b are connected to each other, and the entire cam 110 is formed in a continuous groove.

In the above configuration, the reduction gear mechanism 103, the rotation cam 102, the cam 110, the operation pin 62, etc., which transmit the rotational force of the motor 33 to the rotation cam 102 and move the punch 61, include the operation means 191. Is composed.

With such a configuration, while the motor is started and the rotating cam 102 makes one rotation, each cam 110
Each punch 61 is lowered and raised by the engagement between the punch 61 and the operating pin 62, and a hole is formed in the sheet. One rotation of the rotating cam 102 is detected by the sensor 57 (see FIG. 14).

In this punching apparatus 100, the relative positional relationship between each cam 110 and each punch 61 is different, so that each punch 61 does not simultaneously punch a hole in the sheet, but sequentially punches. An overload is not applied to the motor 33.

After the punching of the sheet has been completed and the punch 61 has been lifted, when the next sheet to be fed is opened, the motor 33 is moved in the same direction because the entire cam 110 is formed in a continuous groove. And the rotating cam 102
Can also be rotated in the same direction to drill holes. For this reason, the drilling device 100 does not need to reverse the motor 33, and is configured to be easily controlled.

Further, in the punching apparatus 100, the motor 33, the reduction gear mechanism 103, and the rotary cam 102 may be slightly over-rotated by the inertial force after each punch 61 finishes punching the sheet. However, the over-rotation is allowed by the first and second linear portions 112a and 112b, and all the punches 61 are held at the highest position and are not lowered, so that the punches 61 are reliably at the standby position. Let it be.

The cam 110 of this drilling device 100
Is formed in a continuous groove by connecting the leading ends of the first and second linear portions 112a and 112b. However, when the leading ends are separated from each other to form a continuous groove, every time a hole is formed in the sheet, Alternatively, the punch 61 may be lowered and raised by reversing the rotating cam.

Further, the rotary cam may be formed with a plurality of cams instead of one.

(Third Embodiment) A drilling device 200 according to a third embodiment will be described with reference to FIG.

This drilling device 200 has a configuration in which the arrangement relationship between the cam 44 and the operating pin 62 of the drilling device 30 of the first embodiment is reversed.

That is, each of the punches 61 is provided with a hole-shaped cam 2.
A cam plate 201 on which a cam 203 is formed is provided.
2 are protruding. Also in this case, the relative positional relationship between the cam 203 and the punch 61 is different for each combination of the cam 203 and the punch 61.

The cam 203 has a shape obtained by turning the cam 44 of the drilling device 30 of the first embodiment upside down.

The cam 203 has a first inclined portion 204 whose end portions approaching each other in different inclination directions.
a and a second inclined portion 204b, a V-shaped portion 204 formed in a V-shape with the first and second inclined portions 204a and 204b.
b and connected to mutually separated ends of the inclined portion (20).
4a or 204b), the first straight portion 205a and the second straight portion 20 extending in the direction of movement of the cam plate.
5b.

[0132] The first inclined portion 204a of the V-shaped portion 204 rises rightward, and the second inclined portion 204b descends rightward. The first straight portion 205a is connected to the first inclined portion 204a, and the second straight portion 205b is connected to the second inclined portion 204b. Also in this case, a cam groove may be formed instead of the hole-shaped cam.

In the drilling device 200 of the third embodiment, a gear reduction mechanism (not shown) that converts the rotational force of a motor (not shown) into a linear reciprocating movement force, transmits the linear reciprocating movement force to the cam plate 35, and moves the punch 61, The moving rod 202, the cam 203, the operating pin 62 and the like constitute an operating means 291.

The operation of the drilling device 200 is the same as the operation of the drilling device 30 of the first embodiment, and the description of the operation is omitted.

The feature of the drilling device 200 is that the moving rod 201 which moves in the left-right direction is provided with the operating pin 62, so that the cam plate 35 of the drilling device 30 of the first embodiment is made lighter. In addition, the inertia force can be reduced, and the useless movement of the moving rod 201 due to the inertia force can be prevented.

(Fourth Embodiment) A drilling device 300 according to a fourth embodiment will be described with reference to FIG.

This drilling device 300 is different from the drilling devices 30, 100, 200 of the first, second and third embodiments in the configuration of the operating means 91, 191, 291 and uses a cam and an operating pin. Instead, the punch 61 is moved by a link.

That is, the operating means 3 of the drilling device 300
91 is linked to a motor (not shown) and guide plate 303
Of the punch 61 and a moving link 301 which is connected to the punch 61 and the operating rod 301 via pins 304 and 304. .

In such a configuration, when the operating rod 301 moves rightward, which intersects the moving direction of the punch 61,
The connecting link 302 moves the punch 61 in a direction to approach the sheet while tilting and approaching the punch 61.

When the connecting link 302 and the punch 61 are parallel to each other, the connecting link 302
1 has been moved to the bottom. During this time, the punch 61 pierces a sheet (not shown).

The operating rod 301 still moves in a direction intersecting with the punch 61. Then, the connecting link 302 moves the punch 61 in a direction away from the sheet while tilting in a direction away from the punch 61.

The operating rod 301 moves to a predetermined position and stops, and the punching operation by the punch 61 ends.

The motor (not shown) over-rotates and the operating rod 30
Even if 1 moves accordingly, the link 302 moves the punch 61 in the direction away from the sheet.

The operating rod 301 interlocked with the motor
Since the connecting link 302 is tiltably connected to the operating plate 301, the operating rod 301 is compared with the cam plate 35 (see FIG. 1).
When the operating rod 301 is moved in the opposite direction without excessive movement of the operating rod 301 due to the inertial force, the punch 61 is quickly lowered.

The operating rod 301 is provided with a guide plate 303,
Since the punch 61 moves by being guided by 303, the reaction force when the punch 61 pierces the sheet is transmitted to the operating rod 301 via the connection link 302 and received by the guide plate 303. For this reason, the punch 61 can accurately
In addition, a hole can be reliably formed.

The drilling device 300 of the fourth embodiment
When the angles of the connecting links 302 connected to the operating rod 301 and the punch 61 are made different for each connecting link 302, the punches 61 can make holes at a time without opening holes in the sheet at once. As a result, it is possible to prevent the motor from being overloaded.

(Fifth Embodiment) A drilling device 400 according to a fifth embodiment will be described with reference to FIG.

The operating rod 401 of the operating means 491 of the drilling device 400 of the fifth embodiment is suspended by a suspended parallel link 403 which is provided on a fixed pin 405 so as to be tiltable.

The operating rod 401 and the punch 61 are
4,404, which are connected by a connection link 402.

The operating rod 401 is connected to a tiltable drive link 407 provided on a drive disk 406 that rotates by a speed reduction mechanism (not shown) that reduces the rotation of the motor.

Therefore, the operating rod 401 is connected to the driving disc 406.
Is rotated in one direction by the drive link 407, and the punch 61 punches a hole in the sheet.

The driving disk 406 and the driving link 407
Instead, the rack 42 and the pinion 41 shown in FIG. 1 may be used.

Since the operating rod 401 moves while being suspended and guided by the suspended parallel links 403, 403, the sliding resistance at the time of movement is small and the operating rod 401 can move smoothly.

The sheet punching device 400 also includes an operating rod 401 interlocked with a motor and a connecting link 40.
2 are tiltably connected, the cam plate 35 (FIG. 1)
As shown in FIG. 5, the inertial force of the operating rod 401 is small, and the operating rod 401 does not move more than necessary due to the inertial force. When the operating rod 401 is moved in the opposite direction, the punch 61 is quickly lowered. Will be.

The drilling device 400 of the fifth embodiment
However, if the angles of the connecting links 402 connecting the operating rod 401 and the punch 61 are made different for each connecting link 402, the punches 61 can make holes at a time without opening holes in the sheet at once. As a result, it is possible to prevent the motor from being overloaded.

[Brief description of the drawings]

FIG. 1 is a front view of a drilling device according to a first embodiment of the present invention, and is a partially broken view.

FIG. 2 is a plan view of FIG.

FIG. 3 is a sectional view taken along arrow 3-3 in FIG.

FIG. 4 is a sectional view taken along arrow 4-4 in FIG.

FIG. 5 is a diagram for explaining the operation of the drilling device of the first embodiment.

FIG. 6 is a view for explaining the operation of the drilling device of the first embodiment, and is a view showing a state where the cam plate has been moved to the right from FIG. 5;

FIG. 7 is a view for explaining the operation of the drilling device of the first embodiment, and is a view showing a state where the cam plate is moved to the right from FIG. 6;

FIG. 8 is a view for explaining the operation of the punching device of the first embodiment, and is a view showing a state where the cam plate is moved to the rightmost position.

FIG. 9 is a diagram of an embodiment in which the cam plate is detected by movement of a punch in the punching device of the first embodiment.

FIG. 10 is a diagram showing a sensor according to another embodiment of the sensor for detecting a moving range of a cam plate.

FIG. 11 is a sectional view taken along the arrow 11-11 in FIG.

FIG. 12 is a cross-sectional view illustrating a mechanism of another embodiment for moving a cam plate.

FIG. 13 is a view of FIG. 12 viewed from the right side.

FIG. 14 is a schematic front view of a drilling device according to a second embodiment.

FIG. 15 is a sectional view taken along the arrow 15-15 in FIG. 14;

FIG. 16 is a perspective view of a rotary cam used in the drilling device of the second embodiment.

FIG. 17 is a front view showing only a main part of a drilling device according to a third embodiment.

FIG. 18 is a front view showing only a main part of a drilling device according to a fourth embodiment.

FIG. 19 is a front view showing only a main part of a drilling device according to a fifth embodiment.

FIG. 20 is a schematic front sectional view of a conventional drilling device.

[Explanation of symbols]

 P sheet (perforated material) S gap 30 punching device 31 main body frame 33 motor (rotation driving means) 34 reduction gear mechanism 35 cam plate (moving body) 44 cam 45 V-shaped portion 45a first inclined portion 45b second inclined Part 46a First linear part (linear part) 46b Second linear part (linear part) 51 Leg 51a Upper surface 51b Inclined surface 54 Die 55 Cam plate detection sensor (detection means) 56 Cam plate detection sensor (detection means) 57 Punch detection sensor (Detecting means) 61 Punch 62 Operating pin (pin) 70 Rotational force transmitting mechanism 78 Photo sensor (Detecting means) 78a Light emitting section 78b Light receiving section 79 Through hole 100 Drilling device 102 Rotating cam (rotating body) 103 Reduction gear mechanism 105 Gear Belt 106 operating gear 107 pressing roller 108 pressing roller 109 idle gear 110 cam 111 V-shaped part 111a First inclined part 111b Second inclined part 112a First linear part 112b Second linear part 191 Actuating means 200 Drilling device 201 Cam plate 202 Moving rod (moving body) 203 Cam 204 V-shaped part 204a No. 1 inclined portion 204b second inclined portion 205a first straight portion 205b second straight portion 300 punching device 301 operating rod (operating body) 302 connecting link 303 guide plate (linear guide means) 391 operating means 400 punching device 401 operating rod (Working body) 402 Connecting link 403 Hanging parallel link 491 Operating means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masanori Taga 197 Kumasaka-cho, Kaga-shi, Ishikawa Prefecture Inside Daido Industry Co., Ltd. F term (reference) 3C060 AA02 BA01 BB12 BC01 BE08

Claims (11)

[Claims] 1. A punching device for punching a punched material such as a sheet by engaging a punch and a die, comprising: a rotation driving means; and a rotation direction intersecting a moving direction of the punch by the rotation driving means. Operating means for converting the movement into the moving direction of the punch and transmitting the converted movement. 2. The method according to claim 1, wherein the operating means has a cam and a pin engaged with the cam, and one of the cam and the pin is interlocked with the rotation driving means, and the other is provided on the punch, The drilling device according to claim 1, wherein the punch and the cam are operated by relatively moving the cam and the pin in a direction intersecting with a moving direction of the punch. 3. The first and second inclined portions, wherein the cam has end portions approaching each other in different inclination directions, and the first and second inclined portions are mutually connected. A straight line portion connected to the separated end portion and extending in a direction away from the inclined portion, and extending in one movement direction of the cam and the pin in conjunction with the rotation driving means; The drilling device according to claim 2, wherein the punch is held at a position separated from the material to be punched via the other of the cam and the pin. 4. A detecting means for detecting a position of the punch or the cam when the punch separates from the material to be pierced, and stopping the rotation driving means. 4. The drilling device according to 2 or 3. 5. The apparatus according to claim 2, wherein a plurality of sets of the punch and the die, the cam, and the pin are provided, and a relative positional relationship between the pin and the cam is different for each set. Drilling equipment. 6. The punch is provided on a moving body that moves in a direction intersecting with a moving direction of the punch in conjunction with the rotation driving means, and the pin is provided on the punch. , 3, 4 or 5. 7. The cam is provided on a rotating body that is rotatable about an axis parallel to a moving direction of the punch in conjunction with the rotation driving means, and the pin is provided on the punch. The drilling device according to claim 2, 3, 4, or 5. 8. The punch is provided on a moving body that moves in a direction intersecting with a moving direction of the punch in conjunction with the rotation driving means, and the cam is provided on the punch. , 3, 4 or 5. 9. An operating body, wherein said operating means moves in a direction intersecting with a moving direction of said punch in conjunction with said rotation driving means, and said punch and said operation intersect with said punch and said operating body. 2. A tiltable connection link for connecting a body to the body, wherein when the punch and the connection link are parallel to each other, the punch forms a hole in the material to be pierced. 6. The drilling device according to claim 1. 10. The drilling device according to claim 9, wherein the operating body moves while being guided by linear guide means. 11. The drilling device according to claim 9, wherein the operating body is moved by being suspended by a tiltable suspended parallel link.