JPS6337427B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention, for example, selectively converts card-like objects such as paper cards (JLSC6244 information exchange paper cards) into
This invention relates to a card supply device that takes out cards one by one.

The present invention is particularly applicable to, for example, a recording card supply device used in a recording card input/output device that operates online in a data processing device, but its use is not limited thereto. It's not something you can do.

Card removal methods in conventional card feeding devices include a picker knife method, a roller method, and the like.

Among these, the Picker Knife method is superior in terms of reliability and stability when taking out cards, and the Picker Knife method is particularly suitable for card feeding devices in data processing equipment where the reliability and stability of card feeding are important points for device performance. It is well known that many such methods have been put into practical use.

Further, card ejection mechanisms using picker knives used in conventional card feeding devices are broadly classified into cam type and crank type.

However, both the cam type and the crank type use rotational motion as a driving source and convert this into reciprocating motion.

Further, since card removal is performed intermittently, a clutch has been used to control the reciprocating movement intermittently.

However, the conventional picker knife type card feeding device has the following drawbacks.

(1) The operating characteristic of a clutch is that it rises and falls with a certain time constant when it is engaged or released, but there is variation in these rise and fall times, and this variation can cause card ejection errors and card damage. This caused problems such as:

(2) The transmission torque during the rising and falling of the clutch is extremely unstable, and instability such as impact during rising and poor cutting during falling has caused problems such as damage to the card.

(3) There are many cases where the timing of clutch engagement or release is restricted due to mechanical problems in the cam mechanism or crank mechanism coupling mechanism.
This timing restriction has caused a problem in that it is difficult to control card removal.

(4) When the clutch is released, a biasing mechanism mainly consisting of a tension coil spring biases the Pickker knife to the initial point (position where the card is ready for removal), so that the Pickker knife is at the initial point (position ready for card removal). However, when the clutch is connected and the picker knife takes out a card and the clutch is released, the picker knife vibrates freely, which causes problems such as incorrect card removal and card damage.

(5) It is difficult to take out the card while the picker knife is vibrating freely as described above, and there has been a problem that the performance deteriorates due to a delay in the start operation of taking out the card, especially in high-speed taking out.

In order to solve these problems, there have been proposed a ``movement control device'' described in Japanese Patent Publication No. 1359-1982 and a ``paper feed device'' described in Japanese Patent Publication No. 53-855. However, all of these have the disadvantage that their mechanisms are complicated and expensive.

The present invention has been made based on the above circumstances, and its objectives are (1) to provide an extremely simple structure and low cost; (2) to reduce electrical and mechanical problems during the rising and falling of the clutch; (3) There is no need to limit the timing of clutch engagement and release; (4) High-speed, reliable, and stable card ejection performance is not affected by force of the picker knife or free vibration after release. It is an object of the present invention to provide a card supply device that can maintain the following conditions.

Hereinafter, the present invention will be explained with reference to an illustrated embodiment.

In FIG. 1, a plurality of cards 2 are stored in a hopper 1 in a vertically stacked manner, and the cards 2 are placed on a pressing plate 3 provided in the hopper 1. This pressing plate 3 can move up and down inside the hopper 1, and one end thereof is attached to the hopper 1.
stands out from

Note that a long hole is formed in the side surface of the hopper 1 so that the protrusion 4 of the pressing plate 3 can move up and down.

An insertion hole is formed in this protrusion 4, and a guide shaft 5 passes through this insertion hole and is guided when moving up and down.

One end of a wire 6 for moving the press plate 3 upward is locked at the tip of the protruding portion 4, and the other end of the wire 6 is folded upward via a reel 7 installed at an upper position and is connected to a spring. 8 is connected.

That is, the wire 6 is always kept pulled upward by the tensile force of the spring 8, and the pressing plate 3 is urged to move upward.

Thus, the uppermost card 2 always reaches the upper opening of the hopper 1 and waits in contact with the lower surface of the horizontal guide plate 9 and the lower surface 10b of a picker knife 10, which will be described later.

A pair of feed rollers 11, 11 are disposed in the transport direction of the uppermost card 2.

In addition, a throat knife 12 is installed at the upper side of the hopper 1 on the side of the feed rollers 11, 11 to prevent the transfer of the next card that touches the bottom of the uppermost card 2.
is provided.

On the other hand, a guide shaft 13 is provided in the upper opening of the hopper 1 in the direction of the surface of the card 2, and a picker knife 10 is installed which reciprocates along the guide shaft 13 in the directions of arrows 14 and 15. The end points of the movement are the first position A and the second position B, respectively.

This picker knife 10 has an arm 16 which will be described later.
The rear end of the uppermost card 2 is hooked and the card 2 is taken out in the direction of an arrow 17.

The arm 16 is pivoted on a shaft 18 and is shown by arrows 19,2.
It is designed to be able to swing in the 0 direction.

In addition, notches 16a and 1 are provided at both ends of the arm 16.
A pin 10a protruding from the picker knife 10 is inserted into one notch 16a, and rotational motion is transmitted to the other notch 16b by a drive system 21, which will be described later. A pin 23 fixed to a rotary plate 22 is inserted through the rotary plate 22.

The drive system 21 includes a motor and a clutch 2 (not shown).
5, a belt 26, which transmits the rotational movement of the motor to the rotary plate 22 through the clutch 25, and rotates the pin 23 in the direction of arrow 27.

Thus, the rotational movement of the pin 23 causes the arm 16 to swing, causing the picker knife 10 to reciprocate along the guide shaft 13.

Further, one end of a spring 28 is locked to the arm 16, and is always biased in the direction of the arrow 19.

That is, the picker knife 10 is always urged in the direction of the arrow 15 by the spring 28.

Furthermore, the clutch 25 is an electromagnetic clutch,
Its ON and OFF states are controlled by a control unit (not shown).

Based on this configuration, its operation will be explained.

In the initial state, that is, when not driven (ready to take out the card), the clutch 25 is OFF, and the picker knife 10 is held by the spring 28.
is urged in the direction of arrow 15 by the tensile force of
in position.

At this time, the motor is driven by receiving a signal from the control section, for example, "take out the card", and the feed roller 1 is driven.
is rotated in the direction of transport of the card 2.

After this, the control unit 29 turns on the clutch 25,
The pin 23 fixed to the rotary plate 22 is rotated, thereby swinging the arm 16, and the spring 28
The picker knife 10 is moved against the tensile force of.

The picker knife 10 moves from the first position A to the second position B, and then from the second position B to the first position A.
When the clutch 25 is turned OFF on the way back, that is, after a certain period of time T has elapsed from the start of driving, the picker knife 10 returns to the first position A due to the tensile force and inertial force of the spring 28, and returns to the first position A as shown in FIG. 2C. Free vibration occurs near .

This free vibration is attenuated by various friction, resistance, viscous resistance, etc. that affect this vibration system.

Further, the card 2 taken out by the picker knife 10 is moved from the second position B to the arrow 1 while the picker knife 10 is returning from the second position B to the first position A.
It was caught when it was slightly closer to the direction of 5,
The picker knife 10 is transferred in the direction of the arrow 15.
is caught by the feed roller 11 on the way back to the first position A and is transported in the direction of the arrow 17.

In this way, the removal of one card is completed.

In the above embodiment, (1) a crank mechanism was used as the mechanism for converting rotational motion into reciprocating motion, but the same effect can be expected even if this is replaced with a cam mechanism, and (2) the picker knife is moved parallel to the card surface. However, the same effect can be expected even if the clutch is rotated around a certain point. 4) The same effect can be expected without being particularly affected by the stacking state of the cards.

As described above, the present invention is not limited to the embodiments described above, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

As explained above, according to the present invention, since the initial point (position in the initial state) of the picker knife 10 is located at the first position A, the ejection position of the card 2 can be placed near the second position B on the opposite side. (1) The vicinity of the second position B, that is, the ejection position of the card 2, and the ON and OFF positions of the clutch 25 and their rising and falling regions can be sufficiently separated, so that the rise and fall of the clutch (2) After turning off the clutch 25, the clutch is turned off.
Free vibrations of various amplitudes are generated depending on the timing of , but if the lower surface 10b of the picker knife 10 that contacts the card 2 has a sufficient surface finish, the upper surface of the next card below the card 2 to be taken out and the picker knife 10 lower surface 10b
The frictional force generated between the two positions can be made extremely small, and the generation of free vibration near the first position A prevents problems such as card removal errors and card damage, and (3) Speeds up card removal. When removing the card, even if the free vibration of the picker knife that occurs after the card is removed is not sufficiently damped, the amplitude of the free vibration can be constrained to the vicinity of the first position A. holds the clutch for a certain period of time T, regardless of the position of the picker knife.
(4) It is possible to operate the next card ejecting operation at any time immediately after a series of card ejecting operations without being affected by the free vibration of the picker knife, simplifying card ejecting control. Furthermore, it is possible to provide a card supply device that can realize high-speed card removal (5), has an extremely simple structure, is inexpensive, and can maintain reliable and stable card removal performance.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the main parts of an embodiment of the present invention, and FIGS. 2 a to 2 c are timing charts for explaining the operating state of FIG. 1. 1...Hopper, 2...Card, 10...Picker knife, 16...Arm, 25...Clutch, 28...Spring, A...1st position, B...
...Second position.

Claims (1)

[Claims] 1. A hopper that stacks and stores a plurality of cards, and a picker knife that is movable back and forth between a first position and a second position and that takes out the card from the hopper when moving from the second position to the first position. 2. A card supply device comprising: a drive means for driving the picker knife between a first position and a second position and stopping the picker knife near the first position when not being driven.