JP2007076917A - Paper separative feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper feeder for feeding a large quantity of waste paper waiting for disposal, to a device body of a document shredder device or the like in an unmanned manner for disposal, guiding cambered, wrinkled and bent paper to a paper separating part so as not to cause paper jamming, and positively feeding the last paper. <P>SOLUTION: A paper separative conveying device is provided with a paper pressing ring 1 for guiding a cambered paper end to the paper separating part. The paper pressing ring 1 is projected in a predetermined direction to a paper separating roller 3 and rotated in a paper feed direction if necessary to press and guide the paper end positively into a predetermined place. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

    The present invention unmannedly supplies a predetermined amount of waste paper for processing to a main body of a document shredder device or the like for finely crushing a document to be discarded for the purpose of maintaining confidentiality and discarding the written content in a state where it cannot be read. It is related with the paper supply apparatus for this.

  The concept of the basic paper transport technology of this technology has already been proposed in the “Japanese Patent Application (previous pressure ring)” and its usefulness has been described. The present invention seeks to improve the paper separation and supply technology and to further improve performance and reliability.

  The present invention separates and conveys a predetermined number of waste processing waste paper stacked in a large amount in a paper storage unit such as a document shredder device and stably supplies it to the processing device of the main body. Even when the paper edge is warped up, the edge part directly collides with the paper separation roller part so as not to cause paper jam.

  A paper pressure ring that has a large inner diameter and can move freely is added to the paper separation roller shaft to limit the number of sheets sent from the paper storage unit to one or two. By providing a pressurizing unit that pushes and optimizing the direction in which the paper pressure ring travels, the paper with wrinkles is more reliably supplied to a predetermined position of the paper separation roller.

  By making the surface of the paper pressure ring a high friction material and rotating forward in the paper feed direction, the paper that collides is more positively pressed and guided to a predetermined position of the paper separation roller that reverses.

  The paper pressure ring is placed at the optimum position for guiding the leading edge of the fed paper and is rotating forward in the paper feed direction. Therefore, the leading edge of the paper is warped up by the warp or bent and tries to directly hit the paper separation roller. The paper can be more surely pressed downward and guided to the correct position of the paper separation roller, and paper jam at the paper supply unit is eliminated.

Embodiments corresponding to claims 1 and 2 of the present invention will be described with reference to FIGS.
The paper pressure ring 1 has an inner diameter larger than the diameter of the paper separation roller shaft 2 and can be freely rotated by the paper separation roller shaft 2 so that it can freely move by the difference in inner diameter. The outer diameter of the paper pressure ring 1 is equal to or greater than the outer diameter of the paper separation roller 3, and a part of the paper pressure ring 1 is always on a business trip from the surface of the paper separation roller.

  The pressurizing unit is composed of a pressurizing roller 4 and an arm 5 that supports both ends of the pressurizing roller 4. The pressurizing roller 4 rotates freely with respect to the arm 5, and the arm 5 can rotate around a fulcrum 6.

  A plurality of paper pressure rings 1 are installed on the paper separation roller shaft 2 at appropriate intervals. Each of the paper pressure rings 1 contacts the pressure roller 4 and the weight of the pressure roller is transmitted and pushed in a certain direction. It protrudes in the direction.

  When the paper edge is conveyed to the paper separation roller portion with the paper edge warped or bent due to the paper 7 being bent or the like, the paper edge hits the protruding portion of the paper pressure ring 1 and is guided to the lower part of the paper separation roller 3 to cause the paper jam. Avoided. The paper pressure ring 1 resists the paper pressure from the side to a certain extent, but easily escapes from the paper pressure from below, so the paper separation unit normally separates the paper and feeds it to the document shredder device. Supply.

An embodiment corresponding to claim 3 of the present invention will be described with reference to FIGS.
The outer periphery of the paper pressure ring 1 is a high-friction material, which is in contact with the paper transport belt 8 and normally rotates forward in the paper feed direction. The paper separation roller 3 rotates in the direction opposite to the paper transport direction.

  When the edge of the sheet 7 hits the outer periphery of the sheet pressure ring 1, the edge of the sheet is positively guided to the lower part of the sheet separating roller 3 by the frictional force and the rotational force, and then the upper part when the sheet 7 enters directly below. It escapes and does not interfere with the separating ability of the sheet separating roller 3.

An embodiment of the present invention will be described with reference to FIGS.
The paper pressure ring 1 is a ring whose outer shape is slightly larger than or approximately the same as the diameter of the paper separating roller 3, and the inner diameter is larger than the diameter of the paper separating roller shaft 2 to be fitted, and there is only a gap corresponding to the gap. You can move freely. A rubber O-ring 10 having an appropriate frictional force is fitted on the outer periphery of the paper pressure ring.

  The pressure roller 4 applies pressure to the plurality of paper pressure rings 1 in a fixed direction, and the rotation shafts at both ends thereof can be rotated by fitting with the arm 5, and the arm 5 can also rotate around the fulcrum 6. .

  The pressure roller 4 has an appropriate weight, and pressure in a certain direction is applied to the paper pressure ring 1 through the rotation of the arm 5. When the paper pressure ring 1 is pushed by the pressure roller 4, it travels on the opposite side by an amount corresponding to the inner diameter.

  When the weight of the pressure roller 4 acts as a contact pressure on the paper pressure ring 1 by the rotation of the arm 5, the paper pressure ring 1 has a high resistance in the lateral direction of the paper 7 and pushes up from below. Can escape with a small resistance. Therefore, when the end of the sheet 7 collides from the lateral direction, the sheet is pressed with a large force and guided downward, and when the end of the sheet comes near the sheet separating portion of the lowermost sheet separating roller 3, the pressure is reduced. , So as not to interfere with paper separation.

  The normal paper pressure ring 1 is in contact with the paper transport belt 8 and is rotated forward in the paper feed direction by contact friction. When the paper pressure ring 1 rotates, the pressure roller 4 in contact therewith also rotates.

  A large number of sheets 7 are stored in the sheet storage unit 9, and when the sheet conveying belt 8 rotates, the frictional force causes the sheet 7 to be conveyed and sent out from the lowermost sheet.

  Since the paper 7 to be processed by the document shredder device is a waste paper, in many cases, the paper is warped, wrinkled or bent, and the end of the paper jumps up and it is more opposite when it hits the paper separating roller 3 that is reversed. The paper 7 is flipped up in the direction and the paper 7 is not correctly supplied to the paper separation unit, and paper jam occurs.

  When the end of the paper 7 comes into contact with the rotating paper pressure ring 1, the surface of the paper 7 is highly frictioned and the paper edge is held and wound by the frictional force. Induced to the bottom of. When there are a plurality of sheets 7 taken out from the sheet storage unit 9, the lowermost sheet is conveyed by the sheet conveying belt 8 and supplied to the document shredder device, but the second and subsequent sheets are reversed by the sheet separation roller 3. It stays in the place without moving forward due to the conveying force in the reverse direction. At that time, since the paper pressure ring 1 rides on the second and subsequent sheets, the power of the sheet conveying belt 8 is not transmitted and the rotation stops.

  When the lowermost sheet is transported, the entire surface of the second sheet comes into contact with the sheet transport belt 8 and the transport force is increased, so that the transport force in the reverse direction of the sheet separation roller 3 is overcome and the sheet separation unit is passed. The paper is conveyed to the paper crushing unit 11 by the conveyor belt 8 and is crushed.

2 is an embodiment according to the present invention. It is a right view (arrow A) of FIG.

Explanation of symbols

1. 1. Paper pressure ring 2. Paper separation roller shaft 3. Paper separating roller 4. Pressure roller Arm 6. 6. Support point Paper 8. 8. Paper transport belt 9. Paper storage unit O-ring 11. Paper crushing section

Claims (3)

For example, when supplying a large amount of paper that is concentrated and stored in one place to a shredding machine such as a document shredder device, a paper separation and supply device that can tolerate paper skewing, curling, and curling to some extent In the paper pressure ring for guiding the paper to the lower part of the paper separation roller so that the leading edge of the paper that is installed and conveyed on the paper separation roller shaft is caught by the paper separation roller with high friction coefficient and jam does not occur, the paper pressure ring Is fitted with a suitable fit for the paper separation roller shaft and is installed at appropriate intervals. A pressure unit is installed on the opposite side of the paper separation roller to travel the paper pressure ring. When the paper pressure ring presses against the paper and keeps the protrusion in a certain direction, the paper pressure ring has a direction to resist when it dents and escapes due to the paper pressure, leading to the paper with the warped edges Sheet separating and conveying apparatus characterized by a more enhanced results. The pressure part of the paper pressure ring is in the form of a pressure roller, both ends of which are supported by an arm that can be rotated at an appropriate fulcrum, and the pressure roller can rotate with respect to the arm, so that the pressure roller has its own weight. 2. The paper according to claim 1, wherein the paper pressure ring is rotated around the fulcrum of the arm, contacts a part of the paper pressure ring, and presses it to make the paper pressure ring travel on the opposite side. Separation transport device. The paper separation roller reverses with respect to the paper feed direction with an appropriate torque to enhance the paper separation capability, the paper contact surface of the paper pressure ring is provided with a high friction material, and the paper pressure ring is used for paper such as a paper transport belt. The paper that contacts the paper pressure ring is more reliably guided to the lower part of the paper separating roller by obtaining the rotation power of the rotation system of the transport unit and rotating forward. The sheet separating and conveying apparatus according to 1 and 2.

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