JPH0129249Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) This invention relates to a head drive device for a punching machine, and in particular, to a machine frame that supports a card for punching in a progressively movable manner. The present invention relates to a head driving device for a punching machine, which includes a head that is movable in a direction perpendicular to the direction of movement of the card and has a punch for punching the card.

(Problems to be solved by the invention) This invention allows the head, which supports the punch based on the drive action of the drive body, to be free from swinging or twisting in the vertical and front-back directions, and to avoid friction that would hinder movement. To provide a head drive device for a punching machine, which can be guided and moved easily in a stable state in a direction perpendicular to the moving direction of a card without causing any action, etc., and can punch holes accurately at a predetermined position of a card.

Structure of the invention (means for solving the problem) This invention was made by paying attention to the above-mentioned problem, and supports the card C for punching so that it can be moved step by step. In the punching machine, the machine frame 1 is provided with a head 6 which is movable in a direction perpendicular to the moving direction of the card C and has a punch 7 for punching the card C. A pair of guide rods 17 and 18 are fixed in parallel to the moving direction of the head 6 at an interval in the moving direction of the card C, and the guide rod 1
7 and 18 and a threaded rod 25 that is rotationally driven by a drive source 27. and a pair of first guide wheels 19 that are in contact with the lower surface, a pair of second guide wheels 20 and a pair of third guide wheels 21 that are in contact with the upper and lower surfaces of the other guide rod 17 at two locations in the longitudinal direction, respectively, A first guide piece 2 that contacts one of the guide rods 17 of the guide rods 17 and 18 at two points in the longitudinal direction of the front and rear surfaces of the guide rod 17, respectively.
2 and the second guide piece 23, and both guide pieces 22, 2
The power intake part 30 is disposed at a position substantially corresponding to the guide rod 17 in the vertical direction and is screwed into the threaded rod 25.

(Function) Therefore, in the head drive device of this invention, the pair of guide rods 17 and 18 fixed to the machine frame 1
1st, 2nd, and 3rd guide wheels 19, 20, 2 for
The contact between the first and second guide pieces 22 and 23 prevents the head 6 from swinging or twisting in the vertical direction and in the front-rear direction.
As the head 6 is rotated, the head 6 is moved in a stable state via the power intake section 30, and the punch 7 is operated to accurately punch a hole in a predetermined position of the card C.

(Example) Hereinafter, an example of this invention will be described in detail with reference to the drawings.

Now, as shown in FIG. 2, in the drilling machine of this embodiment, an operation panel 2 is provided at the front of the upper surface of a substantially box-shaped machine frame 1, and on the upper surface there are various operation keys and display lamps. is located. Machine frame 1
At the rear of the upper surface, a pair of left and right card guides 3 of the card transfer device are arranged so as to extend in parallel in the front and back direction, and a pair of left and right card transfer sprockets 4 are exposed at two positions on the front and rear sides. are doing. Then, with the card C engaging the teeth of the sprocket 4 with the sprocket holes Ca on both its left and right sides,
The card is progressively transferred forward along the card guide 3 by the rotation of the sprocket 4 based on the operation of the card transfer device or the rotation of the manual operation knob 5 on the machine frame 1.

At the rear of the upper surface of the machine frame 1, there is a head 6 for the card C.
It is supported so as to be movable in the left and right directions perpendicular to the transport direction of the machine frame 1, and is reciprocated by a predetermined distance within a certain range in the left and right direction by the operation of a head drive device provided in the machine frame 1. A punch 7 is supported at the left end inside the head 6 so as to be movable in the vertical direction perpendicular to the card surface of the card C, and is moved up and down by a punch actuator provided inside the head 6 to cooperate with the punching die 34. The card C is perforated at a predetermined position by the operation.

Therefore, to explain in detail the support structure and head drive device of the head 6, as shown in FIGS. It consists of an upper case 10 and a lower case 11. The upper case 10 is formed of a channel material having a substantially U-shaped side surface and has an open upper surface, and a cover 12 is removably attached to the upper surface of the channel material. In addition, the lower case 11 is formed of a cylindrical body with a substantially rectangular side surface and is open at the right end, and a sludge storage chamber 13 for collecting drilling scum is formed inside the lower case 11, and a sludge discharge chamber at the right end thereof is formed. A cap 15 is removably fitted into the outlet 14.

An auxiliary side plate 16 is disposed inside the machine frame 1 on the left side of the head 6. A pair of front and rear guide rods are provided between the right side wall of the machine frame 1 and the auxiliary side plate 16 on both the front and rear sides of the head 6 so as to extend parallel to the movement direction of the head 6 at intervals in the transfer direction of the card C. 17 and 18 are installed and fixed.
A pair of upper and lower first guide wheels 19 are rotatably supported approximately at the center of the rear surface of the lower case 11 in the head 6 and are in contact with the upper and lower surfaces of the rear guide rod 18 . A pair of upper and lower second guide wheels 20 and a pair of upper and lower third guide wheels 21 are rotatably supported on the front left side and center of the lower case 11, respectively.
The front guide rod 17 is in contact with the upper and lower surfaces of the front guide rod 17 at two locations in its longitudinal direction, respectively.

Further, a first guide piece 22 and a second guide piece 23 are provided on the front left side and center of the lower case 11, and abut on the front and rear surfaces of the front guide rod 17 at two points in the longitudinal direction thereof, respectively. ing.
In this embodiment, as shown in FIGS. 3 and 4, the first and second guide pieces 22 and 23 are arranged on the front surface of the lower case 11 and are arranged on a rear abutment plate that abuts on the rear surface of the front guide rod 17. 22a, 23a, and front abutment plates 22b, 23b that are arranged in front of the rear abutment plates 22a, 23a and abut against the front and upper and lower surfaces of the front guide rod 17, and these abutment plates 2
2a, 22b, 23a, and 23b are integrally fixed to the front surface of the lower case 11 by a pair of upper and lower screws 24.

Directly below the front guide rod 17 with which the first and second guide pieces 22 and 23 come into contact, the guide rod 17
A threaded rod 25 is installed inside the machine frame 1 so as to extend parallel to the
is rotatably supported via a support plate 26. A motor 27 for moving the head, which is capable of forward and reverse rotation and constitutes a drive source, is supported on the support plate 26 so as to be located in front of the right end of the threaded rod 25. The threaded rod 25 is rotated. A female threaded body 30 constituting a power intake section is screwed into the lower part of the left front surface of the lower case 11 so as to be located below the front guide rod 17 that the first and second guide pieces 22 and 23 contact. 31, and is screwed onto the threaded rod 25 to rotate the head 6.
It is designed to move the object to the right or left.

Next, the supporting structure of the punch 7 and the punch actuating device will be described in detail. A support cylinder 32 is disposed inside the left side of the upper case 10 of the head 6 so as to extend in the vertical direction via a mounting plate 33. The punch 7 is fitted and supported in this support tube 32 so as to be movable up and down. Also, the lower end of the punch 7 has a cutting blade 7.
a is formed, and a large diameter head 7b is provided at the upper end. Below the punch 7, the lower case 11
A punching die 34 is fixed to the upper left side of the card C by a plurality of screws 35, and when the punch 7 moves up and down and cooperates with this punching die 34 to punch a hole in the card C, the hole 34a of the punching die 34 is fixed. Through this, the drilling debris falls and is accommodated in the debris storage chamber 13 of the lower case 11.

At approximately the center of the upper case 10 of the head 6, an eccentric cam 36 is rotatably supported by an approximately horizontal support shaft 37 extending in the front-rear direction. A punch operating motor 38 is disposed on the right side of the upper case 10 via a support plate 39, and as the motor shaft 38a rotates, the punch operates via a reduction gear mechanism 46 consisting of a large number of gears 40 to 45. The eccentric cam 36 is
It is designed to be rotated.

In the upper case 10 between the punch 7 and the eccentric cam 36, a rotating member 47 having a substantially inverted U-shaped side surface is rotatable by a substantially horizontal support shaft 48 extending in the front-rear direction at a substantially intermediate portion thereof. A pair of cam contact pieces 49 are integrally bent at the right end portion of the eccentric cam 36 to sandwich the outer circumferential surface of the eccentric cam 36 from above and below, and at the lower left end thereof, a pair of cam contact pieces 49 that engage with the head 7b of the punch 7 from below are formed. A pair of front and rear release pieces 50
are integrally bent. An operating piece 51 is attached to the upper surface of the rotating member 47 at the right end with a screw 52, and is constituted by a bullet plate having elasticity to withstand the drilling load from the punch 7, and the head of the punch 7 is attached to the lower surface of the left end. A contact portion 51a is provided in a protruding manner to abut the portion 7b from above.

When the rotating member 47 is rotated counterclockwise in FIG. 1 with the rotation of the eccentric cam 36, the punch 7 is pushed downward via the operating piece 51, and the punch 7 The card C is perforated by cooperation with the die 34, and the rotating member 4
When the punch 7 is rotated clockwise in FIG. 1, the punch 7 is moved upward away from the card C via the release piece 50.

Now, in the drilling machine configured as described above, when the threaded rod 25 is intermittently rotated forward or reverse by a predetermined amount as the head moving motor 27 rotates,
The head 6 is moved to the right or left by a predetermined amount via the female screw body 30. Further, each time the head 6 moves, the punch actuating motor 38 is selectively rotated based on a predetermined actuating signal, and the rotation of the eccentric cam 36 accompanying the rotation of the motor 38 causes the rotating member 4 to rotate.
7 is reciprocated, and the punch 7 is reciprocated relative to the card C via the actuating piece 51 and the releasing piece 50, thereby punching the card C at a predetermined position.

At this time, the first, second and third guide wheels 19, 20, 21 and the first and second guide pieces 22, 23 provided on the lower case 11 of the head 6 are connected to the pair of guide rods 1
The threaded rod 25 is in contact with the front guide rod 17, which prevents the head 6 from swinging or twisting in the vertical and front-back directions. As it rotates, the female threaded body 3
Since the movement force is given to the head 6 through 0,
Head 6 supporting punch 7 and punching die 34
is guided and moved smoothly in a stable state in a direction perpendicular to the direction of movement of the card C without causing vibration or twisting in the vertical and front-back directions, and it is possible to accurately punch a hole in a predetermined position of the card C. .

It should be noted that this invention is not limited to the configuration of the above-mentioned embodiments, and it is also possible to embody the invention by changing the configuration of each part arbitrarily within a range that does not depart from the spirit of this invention.

Effects of the invention As detailed above, this invention is the first, second,
The third guide ring and the first and second guide pieces are in contact with a pair of guide rods to restrict swinging and twisting of the head in the vertical and front-back directions, and the front guide rod is in contact with both guide pieces. Directly below, as the threaded rod rotates, a moving force is applied to the head via the female threaded body, so the head supporting the punch does not swing or twist in the vertical or longitudinal direction.
Moreover, it has the excellent effect of being able to easily and stably guide the card in a direction perpendicular to the card's movement direction without causing frictional effects that would impede its movement, making it possible to accurately punch holes at predetermined positions on the card. play.

[Brief explanation of the drawing]

Figure 1 is a vertical cross-sectional view of the main parts of a drilling machine that embodies this idea, Figure 2 is a perspective view showing the entire drilling machine, Figure 3 is a partial cross-sectional view of the drilling machine, and Figure 4 is a partial cross-sectional view of the same. FIG. In the figure, 1 is the machine frame, 6 is the head, 7 is the punch, 17, 18 are the guide rods, 19 is the first guide wheel, 2
0 is the second guide wheel, 21 is the third guide wheel, 22 is the first guide wheel.
Guide piece, 23 is a second guide piece, 25 is a threaded rod, 27
3 is a motor, and 30 is a female threaded body constituting a power intake section.

Claims (1)

[Claims for Utility Model Registration] A machine frame 1 that supports a card C to be punched so as to be movable step by step, is movable in a direction orthogonal to the direction of movement of the card C, and is configured to punch a hole in the card C. In a punching machine equipped with a head 6 having a punch 7 for applying a punch, a pair of guides are fixed to the machine frame 1 at intervals in the direction of movement of the card C and parallel to the direction of movement of the head 6. The head 6 includes rods 17 and 18 and a threaded rod 25 that is arranged substantially parallel to the guide rods 17 and 18 and is rotationally driven by a drive source 27. A pair of first guide wheels 19 are in contact with the upper and lower surfaces of one of the guide rods 18, and a pair of second guide wheels 20 are in contact with the upper and lower surfaces of the other guide rod 17 at two locations in the longitudinal direction thereof. A pair of third guide wheels 21, and a first guide piece 22 and a second guide piece 23 that contact the front and rear surfaces of one of the guide rods 17 and 18 at two locations in the longitudinal direction of the guide rod 17, respectively. and a power intake part 30 which is disposed at a position substantially corresponding in the vertical direction to the guide rod 17 where both the guide pieces 22 and 23 are in contact and is screwed into the threaded rod 25. Head drive.