Paper discharge device

Abstract

The present invention provides a device that ejects paper 1 (single sheet 1a, folded sheets 1b, 1c, 1d) loaded on a paper feed tray 4 one sheet or one copy at a time using a paper feed roller 2. [Solution] Paper 1 loaded on the paper feed tray 4 is pressed against the paper feed roller 2, and one sheet or one portion at a time is discharged by the separation plate 14. An adjustment plate 6 is provided to adjust the pressure between the separation plate 14 and the paper feed roller 2, so that the paper 1 can be discharged one sheet or one portion at a time.

Description

Technical Field

[0001] The present invention relates to a device for sending out sheets one by one from above the stacked sheets or sending out the folded sheets one by one outside the device, for example, a paper discharge device for sending out one sheet or one copy of the handling instructions, pamphlets, etc. of the goods to be packaged one by one.

Background Art

[0002] Regarding the method of sending out the stacked sheets one by one, many methods have been implemented in copiers, printers, etc., but the paper quality, paper thickness, etc. that can be used are specified. It was difficult to manufacture a device that discharges papers with different paper qualities or folded papers folded twice or more.

[0003] This device relates to a method of discharging one by one the pamphlets to be put in a snack box, etc., the handling instructions to be included with equipment, the examination tickets, etc., or the folded sheets one by one outside the machine.

[0004] Regarding the method of sending out the stacked sheets one by one, many ideas have been devised in paper feeding devices such as printers, such as a double-feed prevention method by combining a paper feed roller with rubber or cork, etc., and a double-feed prevention method by combining a paper feed roller with a rubber double-feed prevention roller. (For example, see Patent Document 1)

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] An object of the present invention is to provide a device that discharges the stacked sheets one by one or the folded sheets one by one outside the machine regardless of the paper quality and paper thickness. [Means for solving the problem]

[0007] To achieve the above objective, the present invention has the following configuration as its essence.

[0008] A paper discharge device that feeds paper loaded on a paper feed tray using paper feed rollers, characterized in that a separation plate is pressed against the paper feed rollers, and an adjustment plate is provided that allows the pressure to be adjusted, in order to feed out one sheet of paper or folded paper at a time.

[0009] A paper ejection device characterized in that, in the above-described type of device, a paper ejection sensor is provided downstream of the feeding device, and it is capable of detecting when paper has been ejected from inside the machine.

[0010] A paper ejection device characterized by being equipped with a pressure control spring for controlling vibration of the separation plate due to differences in paper thickness, etc.

[0011] A paper discharge device characterized in that, in a control system using a pressurized cork applied to the paper feed roller, a pressurized leaf spring is attached below the separation pad. [Effects of the Invention]

[0012] Traditionally, the method for discharging loaded paper one sheet at a time involved applying pressure to the paper feed mechanism using rubber sheets, cork, or rubber rollers to separate and discharge the paper.

[0013] In the apparatus according to the present invention, a rotatable separation plate is brought against the paper feed roller by a spring, and a small gap between the separation plate and the paper feed roller can be adjusted, so that paper can be discharged one sheet at a time or folded paper can be discharged one set at a time.

[0014] The paper ejected using the above method is discharged by the rotation of the paper feed roller, and the paper stops at a preset length.

[0015] When the paper is removed, the paper discharge sensor installed at the discharge part of the separation plate detects that the paper has been removed, the paper feed roller operates, and the next sheet of paper is discharged.

Brief Description of the Drawings

[0016] [Figure 1] Showing the paper shapes that can be used in the present invention [Figure 2] Showing the paper setting method of the present invention [Figure 3] Showing the state when the paper of the present invention is discharged [Figure 4] Showing a detailed enlarged view of a leaf spring provided at the paper discharge part of the present invention [Figure 5] Showing the pressure combination method of the leaf spring for the conventional cork pressurization method

Modes for Carrying Out the Invention

[0017] Hereinafter, an embodiment of a paper discharge device according to the present invention will be described with reference to the drawings.

[0018] FIG. 1 shows the forms of papers that can be used in the device of the present invention, showing a single sheet of paper 1a, a double-folded paper 1b, a triple-folded paper 1c, and a quadruple-folded paper 1d.

[0019] Since the paper discharge method used in the device of the present invention is the same for multi-folded papers, it will hereinafter be described as paper 1.

[0020] In FIG. 2, the paper feed tray 4 is rotatably held by a paper feed tray rotating shaft 5 and is arranged so as to be rotatable upward by a tension spring 10 equipped on a stopper shaft 7.

[0021] The start lever 9 is equipped on a rotating shaft 8 on either the outside of both side plates 20a and 20b and is rotatable by a spring 11, but its rotation is blocked by a start lever notch 9a.

[0022] After loading the paper 1 onto the paper feed tray 4, manually rotating the start lever 9 in the direction of arrow A releases the start lever notch 9a of the stopper shaft 7 equipped on the paper feed tray 4, causing the paper feed tray 4 to rotate in the direction of B, and the top of the loaded paper 1 comes into contact with the paper feed roller 2, making the paper 1 ready for ejection by the paper feed roller 2.

[0023] Simultaneously, after the lower part of the start lever 9 shields the photosensor 12, the spring 11 disengages the start lever 9 from the sensor part of the photosensor 12, a motor (not shown) is driven, and the paper feed roller 2 rotates in the direction of the arrow.

[0024] When you release your hand from the start lever 9, the start lever 9 is removed from the shielding of the photosensor 12, and the paper feed roller 2 is driven at a preset rotation speed.

[0025] Figure 3 describes the details of the paper output method.

[0026] A separation guide plate 3 is positioned below the paper feed roller 2, between the side plates 20a and 20b.

[0027] A paper feed roller 2 with a one-way clutch that operates in the direction of the arrow is installed in the center of both side plates 20a and 20b, and the paper feed roller rotation shaft 13 is rotated by a motor (not shown) to the set position of the paper feed roller 2.

[0028] The separation guide plate 3 has a notch 3a that allows the separation plate 14 to operate, and aligns the edges of the paper 1 loaded on the paper feed tray 4.

[0029] The separation plate 14, positioned in the notch 3a of the separation guide plate 3, is made from a single plate and is positioned so that it can rotate the rotation support shaft 15 by the pressure spring 16 and press against the paper feed roller 2.

[0030] An adjustment plate 6, which controls the rotation of the separation plate 14, is fixed to the separation guide plate 3 by a set screw 18.

[0031] The pressure between the paper feed roller 2 and the separation plate 14 is adjusted by adjusting the distance between the separation plate 14 and the paper feed roller 2 using the adjustment plate 6, according to the thickness of the paper 1 with folds 1a, 1b, 1c, and 1d, or the thickness of each individual sheet of paper.

[0032] The separation plate 14 has a separation plate entry section 14a, which facilitates the entry of the folded parts 1b, 1c, and 1d of the paper 1 when the paper 1 is inserted into the paper feed roller 2.

[0033] When the paper feed roller 2 finishes rotating, the paper 1 is stopped with its rear end pressed against the paper feed roller 2.

[0034] When paper 1 is removed, the paper ejection sensor 17 located in the opening 3b on the paper ejection side of the separation guide plate 3 is activated, a motor (not shown) is activated, and the next paper feed is initiated.

[0035] In Figure 4, when paper 1 enters the separation plate 14, a pressure control spring 19 is provided below the separation plate 14 to prevent multiple sheets from entering at once.

[0036] Since vibration may occur in the separation plate 14 when the paper feed roller 2 is ejected, a pressure control spring 19 is provided to prevent vibration of the separation plate 14.

[0037] In Figure 5, in a conventional method of applying pressure to the paper feed roller 2 using a pressure spring 21, a method was adopted in which the pressure cork 22 is applied from below using a pressure leaf spring 23. [Explanation of Symbols]

[0038] 1 sheet 2 Paper feed rollers 3 Separation guide plate 3a Notch 3b Opening hole 4 Paper feed tray 5 Paper feed table rotation axis 6 Adjustment plate 7 Stopper shaft 8 rotation axes 9. Start lever 9a Start lever notch 10. Tension spring 11 springs 12 photosensor 13. Paper feed roller rotation axis 14 Separation Plates 14a Separation plate entry section 15 Rotating support shaft 16. Pressure spring 17 Paper output sensor 18 Set screws 19. Pressure control spring 21. Compression spring 22 Compressed Cork 23 Pressure leaf spring

Claims

1. A paper discharge device that feeds paper loaded on a paper feed tray using paper feed rollers, characterized in that a separation plate is pressed against the paper feed rollers, and an adjustment plate is provided that allows the pressure to be adjusted, in order to feed out one sheet of paper or folded paper at a time.

2. A paper ejection device according to claim 1, characterized in that a paper ejection sensor is provided downstream of the feeding device, and it is capable of detecting when paper has been ejected from inside the machine.

3. A paper ejection device according to claim 1, characterized in that it is equipped with a pressure control spring for controlling vibration of the separation plate due to differences in paper thickness, etc.

4. A paper discharge device according to claim 1, characterized in that a pressure leaf spring is attached below the separation pad in a control system using a pressurized cork that pressurizes the paper feed roller.

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