JPH081837Y2 - Card punch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a card punching device for punching predetermined holes in various kinds of entrance tickets, tickets, magnetic cards and the like.

[Conventional technology]

FIG. 7 shows a conventional example of this type of card punching device.

In this conventional example, a magnetic card is punched, and a yoke body 3 is mounted on a base 1 at a distance from which the magnetic card 2 is inserted. A female die 4 for punching a predetermined hole is fixed to the base 1, and a punch pin 5 for punching is vertically movable at a position directly above the female die 4 on the yoke body 3 so as to move vertically. Supported by 7.
The punch pin 5 is a small pin portion 5a at the bottom for punching.
And a large-diameter head portion 5b on the upper side, and is elastically pressed upward by a compression spring 8 interposed between the lower bearing 7 and the head portion 5b. An upper box-shaped upper cover 10 is covered on the upper surface of the yoke body 3. Between the ceiling surface of the upper cover 10 and the upper surface of the yoke body 3, a plate-shaped clapper 9 that presses the punch pin 5 in the punching direction is arranged. The clapper 9 is supported by interposing a pressing rubber 11 between the upper surface of the base portion on the right end side in FIG. 7 and the ceiling surface of the upper cover 10, and the lower surface of the tip end of the clapper 9 to the top of the punch pin 5. On the ceiling surface of the upper cover 10, a rubber support 12 that elastically supports the tip of the clapper 9 is provided.
Is provided. The yoke body 3 between the tip and the base of the clapper 9 is provided with an electromagnet 13 that attracts the clapper 9 in the drilling direction. This electromagnet 13 is a bobbin
An electromagnetic coil 15 wound around 16 is fitted on the core 14 at the center.

In the conventional card punching device thus formed, the magnetic card 2 is inserted up to a predetermined position between the female die 4 and the punch pin 5, and the electromagnetic coil 15 is energized to suck the clapper 9 toward the electromagnet 13. It is magnetically attached and is swung downward with a portion of the base end of the clapper 9 engaged with the upper surface of the yoke body 3 as a fulcrum. As a result, the tip of the clapper 9 pushes the punch pin 5 downward against the elasticity of the compression spring 8,
A predetermined hole is formed in the magnetic card 2 by the pin portion 5a and the female die 4. When the power supply to the electromagnetic coil 15 is cut off, the clapper 9 is returned to its original position together with the punch pin 5 by the elastic force of the compression spring 8.

[Problems to be solved by the device]

However, in the conventional card punching device, the punching force by the punch pin 5 cannot be maintained at an appropriate magnitude for a long period of time, which causes various problems.

More specifically, most of the objects to be perforated in recent years include ferrite as a part of the material like the magnetic card 2, and fine ferrite powder generated during the perforation step by the punch pin 5 is an electromagnet. It is attracted by the magnetic field of 13 and is gradually deposited on the upper surface of the core 14 as dust, weakening the magnetic attraction of the clapper 9 by the electromagnet 13 and lowering the punching force of the punch pin 5, resulting in defective punching of the magnetic card 2. Will occur. Particularly, in the card punching device, one unit punches several hundred thousand times or more, so that dust is inevitably deposited on the upper surface of the core 14 and the above problems occur. It was Therefore, it is necessary to provide the upper cover 10 as a separate component to cover the electromagnet 13 as in the present embodiment. Therefore, the assembly was difficult and the cost was high. Further, in the conventional card punching device, a pressing rubber 11 is provided to support the swing of the clapper 9 and is supported by pressure. The pressing rubber 11 has oil resistance, solvent resistance, and cold resistance. However, it is difficult to maintain proper elasticity for a long period of time due to poor moisture resistance and the like, and it is difficult to keep the operation of the clapper 9 good for a long period of time. Therefore, the conventional card punching device requires periodic maintenance, inspection, parts replacement, etc., and management is troublesome.

The present invention has been made in view of these points, and an object of the present invention is to provide a card punching device that can always punch with an appropriate punching force for a long period of time, has high reliability, and is easy to maintain. And

[Means for solving the problem]

The card punching device of the present invention comprises a punch pin for punching a card, a clapper that swings about the base end as a fulcrum to press the punch pin in the punching direction, and an electromagnet that magnetically attracts the clapper in the punching direction. In the card punching device having the above, a dustproof cover for dustproofing between the core portion of the electromagnet and the clapper is integrally formed with a bobbin for winding the electromagnetic coil of the electromagnet, and the clapper has a base end portion. It is characterized in that the elongated hole drilled in is loosely mounted on the support shaft, and is elastically supported on the main body of the device by a spring so as to be swingable.

[Action]

According to the present invention, the dustproof cover formed integrally with the bobbin for winding the electromagnetic coil of the electromagnet prevents the fine powder generated during the perforation of the card from entering between the core of the electromagnet and the clapper. To prevent dust and prevent a decrease in the magnetic attraction of the electromagnet clapper. At the same time, the clapper is loosely mounted on the support shaft through an elongated hole formed at the base end thereof, and is elastically supported by the apparatus body by a spring. Therefore, the pressing force of the clapper in the punching direction of the punch pin is always maintained at an appropriate value, and good punching is performed.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

1 to 4 show a first embodiment of the present invention, in which the same parts as in the prior art are designated by the same reference numerals.

In this embodiment, as shown in detail in FIGS. 1 and 4, the conventional upper cover 10 is omitted, and the electromagnetic coil 15 wound around the core 14 at the center of the yoke body 3 is wound. The bobbin 17 is formed differently from the conventional bobbin 16. That is, in the bobbin 17 of the present embodiment, the flange portions 17b and 17c are provided on the upper and lower sides of the cylindrical portion 17a that is fitted onto the core 14, and the left and right end edges of the upper flange portion 17b are located outside the left and right end surfaces of the clapper 9. Cover the dustproof cover 17
d and 17d are erected integrally. This bobbin 17
Is preferably made by integrally molding an insulator such as synthetic resin. In the present embodiment, the bobbin 17 thus formed is
The electromagnetic coil 15 is wound around the cylindrical portion 17a of the and the lead wires 15a and 15b at both ends thereof are connected to the slits 3a and 3a at the rear portion of the yoke body 3.
Through each of them. Further, in this embodiment, the clasp 9 is used instead of the conventional presser rubber 11.
A long hole 18 that is long in the front-rear direction is bored at the base end of the
Is loosely fitted to the support shaft 19 screwed to the yoke body 3, and a compression spring is provided between the head flange 20 of the support shaft 19 and the upper surface of the slot 18.
The clapper 9 is elastically pressed against and supported by the yoke main body 3 via 21.

 Others are formed in the same manner as the conventional example.

 Next, the operation of this embodiment will be described.

When punching the magnetic card 2, when the magnetic card 2 is inserted between the base 1 and the yoke body 3, a sensor (not shown) detects the insertion of the magnetic card 2 and the electromagnetic coil 15 of the electromagnet 13 is detected. By energizing, the clapper 9 is magnetically attracted, and the tip of the clapper 9 presses the punch pin 5 downward against the resilience of the compression spring 8. The pin 5a of the punch pin 5 and the female die 4 cause the magnetic card 2 to move to a predetermined position. Drill a small hole in position.

When the punching is completed, the electromagnetic coil 15 is de-energized, and the elastic force of the compression spring 8 causes the punch pin 5 and the clapper 9 to move.
Is pushed upward and returned to the original position shown in FIG.

During this punching operation, since the space between the clapper 9 and the upper surface of the electromagnet 13 is covered by the dustproof covers 17d, 17d integrally formed with the bobbin 17, ferrite dust or the like generated when the magnetic card 2 is punched is formed in the portion. Intrusion of fine powder is reliably prevented. As a result, the magnetic attraction of the clapper 9 by the electromagnet 13 is always maintained at an appropriate level. Further, in this embodiment, the base of the clapper 9 is supported by the compression spring 8 which lifts the punch pin 5 and the compression spring 21 which is interposed between the head flange 20 of the support shaft 19 and the clapper 9. Since the shaft 19 is elastically pressed and supported on the yoke main body 3, it can be favorably and swingably supported for a long period of time.

Therefore, according to the present embodiment, the clapper 9 can be favorably swung with an appropriate magnetic attraction force for a long period of time,
The punching with the punch pin 5 is also performed well.

 5 and 6 show a second embodiment of the present invention.

In this embodiment, instead of the compression spring 21 in the first embodiment, a leaf spring 22 elastically supports the clapper 9. That is, the support shaft 19 of the first embodiment.
Instead of inserting the cylindrical support shaft 23 with a flange into the elongated hole 18 of the clapper 9, the base end of the leaf spring 22 is clamped by the washer 25 and the support shaft 23 by the fixing screw 24. The leaf spring 22 and the support shaft 23 are fixed to the yoke body 3, and the tip end of the leaf spring 22 presses the clapper 9 in the drilling direction. The pressing force of the leaf spring 22 in the piercing direction is set to be smaller than the pressing force of the compression spring 8 in the opposite direction,
Normally, the punch pin 5 is moved to the bearing 6 by the elasticity of the compression spring 8.
Have been pulled back inside.

Also in this embodiment, the clapper 9 is elastically pressed against and supported by the yoke body 3 by the compression spring 8 and the leaf spring 22, which is good for a long period of time as in the first embodiment. Drilling is performed.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be modified as necessary.

[Effect of device]

As described above, since the card punching device of the present invention is configured and operates, it is possible to always punch with an appropriate punching force for a long period of time, the reliability is high, the maintenance is easy, and the cost is low. There are effects such as becoming.

[Brief description of drawings]

1 to 4 show a first embodiment of a card punching device of the present invention, FIG. 1 is an exploded perspective view, FIG. 2 is a longitudinal side view,
FIG. 3 is a plan view, FIG. 4 is a sectional view taken along line IV-IV of FIG. 3, and FIGS. 5 and 6 are longitudinal side views and plan views of a second embodiment of the present invention, respectively. FIG. 7 is a vertical side view of the conventional example. 2 ... Magnetic card, 4 ... Female type, 5 ... Punch pin, 8,
21 ... compression spring, 9 ... clapper, 13 ... electromagnet, 14 ...
… Core, 15 …… electromagnetic coil, 17 …… bobbin, 17d …… dustproof cover, 18 …… long hole, 19, 23 …… support shaft, 22 …… leaf spring.

Claims (1)

[Scope of utility model registration request] 1. A card having a punch pin for punching a card, a clapper for rocking the punch pin in the punching direction by oscillating with a base end as a fulcrum, and an electromagnet for magnetically attracting the clapper in the punching direction. In the punching device, a dustproof cover for dustproofing between the core portion of the electromagnet and the clapper is integrally formed with a bobbin for winding the electromagnetic coil of the electromagnet, and the clapper is provided at the base end portion thereof. A card punching device characterized in that the elongated hole is loosely mounted on a support shaft, and is elastically supported by a spring by a spring to be swingably installed.