JPS5817033A - Paper feeder - Google Patents

Abstract

PURPOSE:To perform a reliable operation to assume a posture of supply of papers being different in thickness and to separate the papers from each other, by constituting a paper feeder such that a member, which prevents a plural number of papers from simultaneous delivery and has a smaller coefficient of friction than that of a pickup roller and larger coefficient of friction than that of a paper, is brought into contact with a pickup roller for a duplicating device. CONSTITUTION:Papers P on a hopper 1 are pressed by a pickup roller 2 through the working of a spring 10. As a result, the papers P are picked up by the pickup roller 2 to convey it in a direction B. Then, a member 7 for preventing a plural number of papers from simultaneous delivery is brought into contact with the pickup roller 2, and the member 7 is constituted such that it has smaller coefficient of friction than that of the pickup roller 2 and a large coefficient of friction than that of the paper P. Therefore, even if the papers P are supplied in an overlapping state, only the paper P, contacting the pickup roller 2, is conveyed, and the second paper and the followings are slipped between the papers and are separated from a paper, contacting the pickup roller, by holding them by means of the preventing member 7. This permits the reliable separation of the papers irrespective of a paper thickness.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper feeding device, and particularly to a paper feeding device for feeding paper products one by one to the next process.

In optical character reading devices, copying machines, etc., after paper products are supplied and transported, during a certain transport process, characters are read by a character reading device installed on the transport path, and copies are made by a copying mechanism. A paper feeding device is provided that automatically feeds paper sheets for the paper cutting process.The conventional paper feeding device, for example, as shown in Figure 1, holds a large number of sheets 1i1F in a horizontal state. The hopper 1 has a hopper 1 for loading paper sheets P on the hopper 1, and a pickup roller 2 for taking out the paper sheets P loaded on the hopper 1. It is supported by a grip mechanism (not shown) so that its position remains constant. As a result, the two pickups/stomachs come into constant contact with the paper sheets P with a constant pressure.◎The hopper 1
A claw 3 is provided at the corner of the image at the tip of the paper industry IIP to prevent multiple training cuts. pick up·
The stomach 2 is intermittently rotated in the direction of the arrow 1 by a drive device (not shown).
It is a sending goods that sends out the paper industry IMF.

In this device, the pick-up roller 2 rotates in the direction of the arrow A, and the claws 3 that lock both corners of the leading edge of the paper sheet P#i reduce the "deflection"P'. It is sent out in the direction of arrow B while
P'Nyo> This is a ton which is designed to prevent the number of pieces from being drawn out.

However, the position sni of the claw 3 for preventing multiple sheet feeding of the paper feeder F11 as described above is 1iia from the turtle, and the system 6
Even if the stone is not aligned correctly, the paper 1! I[P is simultaneously sent out from the left and right claws 3 and the paper 5tay is in an inclined state.
1iP's information "Tawami" Du Kamiya siP's tone (thickness, W
Since the strength of I and the like are different, the same equipment handles different types of paper WIP, so the difference between 1kvh and -
There were also problems.

The present invention has been developed in view of the above-mentioned general issues, and by using a single hook, the present invention solves the above-mentioned problems with the conventional paper feeding device, has a simple mechanism, and can feed paper sheets. To provide a paper machine capable of reliably feeding out various types of paper MIli, from thin to thick, one by one, without sometimes exhibiting a tilted state.

The purpose of the present invention is to provide a hopper for loading paper sheets, a means for taking out the paper products whipped into the hopper, and a means for taking out the paper sheets into the next process. In the paper feeding device having a means for sending out paper products, a means for pressurizing the paper products with a substantially constant pressure and force against the ejecting means for several seconds is brought into contact with the ejecting means with a substantially constant pressure and force. The multi-acid training member is provided with a multi-acid training member and is constructed of a material whose friction coefficient is larger than the friction coefficient of the paper industry and smaller than the friction coefficient of the polishing means. achieved by
Embodiments of the present invention will be described in detail below with reference to the drawings.

Fig. 21m is a perspective view of a paper feeding device showing an embodiment of the present invention, and Fig. 6 is a sectional view thereof. [In the figure, it is a hopper for loading single paper sheets 11P, and is shown rotatable around the bins 6 provided on the left and right sides of the rear end of the hopper. is supported by. In the sending direction of the paper sheets III' loaded in the hopper L, the paper sheets I
A pickup 2 is provided to send out the moldy paper 1111F by contacting the front end of the IF. It is made of a material that has a sufficiently large frictional lattice as compared to the coefficient, and both ends of the electric wire are supported in a T-side brake in a rotatable manner, and one end of the electric wire is supported by a T-side brake in a tortoise state, and one end of the electric wire is supported by a t-side brake in a tortoise state, and one end of the electric wire is supported by a t-side brake in a tortoise-like manner.
It is connected to -.

1 paper 1! The tip of the IiP and the pickup
Immediately before the contact point with the roller 2, a plurality of sheets of paper M-type detection prevention member 7 are placed. I protrusion prevention member 'I a't OIE -m, paper leaf 1120 coefficient of friction〉The friction coefficient of the above-mentioned Bitter Up Ta-ra 2.The fist has a small coefficient of friction, so it is made of materials. 1 &: The two ends of %7 are shown in c1 and %Pt is V play.
It is supported by material 9 in a synchronized state, and the V vine is raised against 9w-ra 2 with a constant pressure on the snow.
cv11 - between the lower paper guide 6 and the lower tip of the main collar 1, the hopper 1 is displaced upward according to the amount of paper that may be loaded on the L1 skeleton hopper 1, and the paper III
A spring 10 is disposed above the lower paper guide 6 so that the tip thereof always contacts the pickup/roller 2 with a constant pressure. The operation of this embodiment, which is constructed as described above and is provided with an upper paper guide 11 fixed to the TKV4 side plate as shown, will be explained below.

The tip of the umbrella flange 1 is pushed down against the spring 10 on the platform for loading paper sheets IIP onto the table flange 1.
Bitter up this collar with the bottle 6 as a fulcrum - Tsu 2
When a space necessary for loading the zero sheet IiP, which is rotated in the direction of separation, is created, the paper sheet I1IP is loaded with the ζ roller, and the tip of the hopper 1 is released from being pressed down, and the pickup tube --- When the tip 2 and the topmost tip of the sheet 11F come into contact with each other with a predetermined pressure, preparation for paper feeding is completed.

Paper sheet 11F
When 11 is issued, the turtle is driven by the paper feed signal! o operates, the pickup sheet 2 rotates in the direction of arrow A, and due to the frictional force of the bitta-up o -52,
The top part of the loaded paper sheets P is sent out in the direction of arrow 1, and the
I number & II! When the JfiL prevention member is reached, the friction coefficient of each part is μl>pcrow> PI However, 1μ, the friction coefficient between 8 pick-up loaf 2 and paper industry WIF.

μ5tll Coefficient of friction between the anti-feeding member 7 and paper S.

711.1 Paper 1111P Since the conditions for determining the coefficient of friction between two members are set, paper 1! In the IIP, only the top layer, where the frictional force of the pickup/teeth 2 acts, is separated and sent out. ◎ In which the above conditions are satisfied between the friction coefficients of each part, 11Wk sheets of paper are simultaneously processed. 3) To be able to have a party Even if the paper feeding progresses and there is only one sheet of paper 1!1117 in the bottom layer in hopper 1, the end of the Because the m- is bit-up, the paper In class P can be fed without buckling.

Since the A-clutch is built-in, the tip of the picked-up sheet lff0 passes through the multiple training prevention member TE, and when it reaches the feed loaf pair (not shown), the pickup roller Even if the drive of 2 is stopped, the operation of the one-way clutch will continue.
There is no problem in leaving the picked up paper products P (as it rotates freely), and it stops when the paper products P are sent out, so subsequent paper sheets P are continuously sent out. The paper sheets P can be sent out one by one in a stable state without any problems.

In the above embodiment, the pick-up/puller 2 is used as the means for taking out paper sheets, but it goes without saying that other conveying means such as an endless persevere may also be used.

In addition, the hopper lFi should be installed as shown in the above implementation example.
# of things! ! Alternatively, the sliding type shown in the description of the conventional device may be used, and the degree of inclination may be selected within a wide range.

In addition, in the above-described embodiment of the lid, it is possible to set the bit-up position of the paper product at a distance of about l Q yr,tn from the leading edge of the paper product, which is different from the conventional "deflection". This is significantly shorter than the approximately 30 minutes required in the case of a device that applies this method, and because of its thickness, buckling and the like will not occur even with thin paper of $11.

As described above, according to the present invention, there is a hopper for loading paper sheets, a means for taking out the paper sheets loaded in the hopper, and a means for sending out the paper sheets taken out by the taking-out means to the next process. A sheet feeding device having a means for pressing the paper sheets against the ejecting means with a substantially constant pressure, and a plurality of drill 9 ejection prevention members that abut on the ejecting means with a substantially constant pressure. Since the plurality of feed-out prevention members are made of a material whose friction coefficient is larger than the friction coefficient of the paper sheets and smaller than the friction coefficient of the ejecting means, the mechanism is simple and yet It is possible to reliably and always stably feed a variety of paper sheets, from thin to thick, one by one, without the paper sheets exhibiting a tilted state during feeding, and is highly effective and low-priced. By realizing a highly reliable paper feeding device, excellent practical effects can be achieved.

[Brief explanation of the drawing]

81 is a side view showing a conventional paper feeding device, FIG. 2 is a perspective view showing a paper feeding device which is an embodiment of the present invention, and FIG. 3 is a sectional view thereof. 1! Hopper, 2; Bitter up loaf, 38 multi-step feeding prevention claw, 4.4': Feed roller, 71I sheets feeding prevention member, 8 words lower paper guide, O! Spring member, lO! Spring, 11! Upper g1M paper guide! Tomigashigyo Purchasing Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] In a paper feeding device having a hopper for loading paper 1IIi, a means for discharging the paper products loaded in the hopper for several seconds, and a means for sending the paper products taken out by the several seconds dispensing means to the next process. , take the paper** above! A means for pressurizing the feeding means with a substantially constant pressure and a plurality of edge shedding prevention members that abut on the feeding means with a substantially constant pressure are provided, and the plurality of shedding prevention members have a coefficient of friction. A paper feeding device characterized in that the sheet feeding device is constructed of a material in which the friction coefficient of the paper sheet is large and the friction coefficient of the seconds feed means is small.