JPH09169U - Inversion mechanism for paper alignment device - Google Patents

Abstract

(57) [Abstract] [Purpose] When sliding the paper from the paper feed table to the paper aligning device on the transfer board, reverse the paper bundle by a simple process and at the same time supply air between the paper. (EN) Provided is a reversing mechanism for a paper aligning device which has a simple structure and is free from problems such as wrinkles and folds. [Structure] A reversing shaft composed of a roll having an appropriate outer diameter horizontally installed so as to be orthogonal to the paper feeding direction is installed above a transfer plate device that is stretched between a paper feed table and a paper aligning device, and appropriately rotated. The driving device rotationally drives in the opposite direction to the paper feeding direction on the transfer plate. A sheet pressing unit configured to press a pressing disc axially rotatably and separately from the roll surface to the roll surface in accordance with a winding and feeding timing for the roll, forms a sheet in the returning direction. The point is to forcibly rewind and reverse.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention is a paper aligning device for reversing a stack of paper and supplying air between the papers when the papers are fed from a paper feed tray to a high stacking paper aligning device that stacks the papers with the corners aligned. The present invention relates to an inversion mechanism.

[0002]

[Prior art]

 When printing on paper using a printing machine, it is necessary to feed paper to the printing machine under the same conditions, and even when cutting different-sized paper to the same size, it is necessary to align at least two sides of each paper. However, in the past, all of this paper alignment work was performed manually, which required a great deal of labor and time, was extremely inefficient, and could not achieve uniform paper alignment.

For this reason, the applicant of the present application has proposed a paper aligning device capable of automatically and evenly stacking the stacked sheets by sticking them in order from the top by sequentially stacking the sheets from above. Although we succeeded in improving the work efficiency, this invention is to gradually change the paper stack from the paper feed stand installed close to the above paper aligning device, and to change the paper feed stand and the paper aligning device. It has a structure in which the bundle of paper is slid into the paper aligning device via the bridge plate device that is placed between them.When turning the paper over, the operator turns the bundle of paper inside out and then inserts the paper stack through the bridge plate. Paper was being fed to the alignment device.

[0004]

[Problems to be solved by the device]

 However, the above-mentioned reverse feeding work involves the operation of completely suspending the bundle of paper on the paper feed table and turning it over, so it is hard work when handling heavy paper, and the paper falls during the reversing work. There was a problem that the corners were crushed and wrinkled.

Conventionally, as a device for reversing stacked sheets as a pretreatment for loading on a paper feed table or reversing stacked sheets by a paper aligning device, the upper and lower surfaces of highly stacked sheets are pressed together. A large-scale dedicated reversing device that floats and supports the entire sheet bundle was used, but this type of reversing device has a large separate device, which is extremely expensive and requires a separate work for reversing. It took time. The present invention has been made in view of the above problems, and when a sheet is slid and moved from the sheet feeding table to the sheet aligning device on the transfer plate, the sheet bundle is reversed and fed at the same time with a simple process. It is an object of the present invention to provide a reversing mechanism for a paper aligning device, which can supply air to the paper and has a simple structure without causing problems such as wrinkles and folds.

[0006]

[Means for Solving the Problems]

 The reversing mechanism for the paper aligning device of the present invention has a reversing shaft composed of a roll having an appropriate outer diameter which is horizontally installed above the transfer plate device which is provided between the paper feed table and the paper aligning device so as to be orthogonal to the paper feeding direction. A cantilever shaft is installed, which is rotatably driven by a rotary drive device in the direction opposite to the paper feed direction on the transfer plate, and a pressing disk which is rotatably and separated from the roll surface. The gist of the present invention is to configure a paper pressing means for pressing the roll surface in accordance with the winding / feeding timing for the roll to forcibly rewind and reverse the paper in the returning direction.

Further, the reversing shaft is positioned vertically with respect to the worker, and the front side is opened. However, the outer diameter of the reversing shaft is gentle so that the outer diameter on the opening side becomes small. It is preferable to form a conical shape.

[0008]

[Action]

 The reversing mechanism implementing the above-mentioned reversing method for the paper aligning device first slides an appropriate bundle of paper onto the transfer plate when the paper on the paper feed table is slid and moved to the paper aligning device via the transfer plate. (At this time, the reversing shaft is located above the paper bundle.) At the same time, the rear end of the paper bundle is lifted and wound around a roll of the reversing shaft, and at the same time, the rear end is guided onto the delivery plate. The bundle of paper wound on the roll is pressed against the roll surface by the restraining disc, which causes it to wind and move in the direction of rotation of the reversing shaft, and also slides on the above-mentioned transfer plate and is fed to the paper aligning device in the reversed state. .

[0009]

【Example】

 An embodiment of a reversing mechanism for a paper aligning device of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a paper aligning device adjacent to the paper feed table 2, and a tilting mechanism (not shown) is used during the paper aligning operation so that the back side corner away from the paper feed tray 2 is the lowest. In addition to the structure in which the support base 3 is tilted, the support 3 is lowered next so that the sheets to be stacked on the rod are held on the predetermined sheet feeding surface A. Further, the paper feed table 2 supports a loading table 5 for loading a sheet a on a side frame 4 so as to be able to move up and down, and the upper surface level of the feeding-side sheet a loaded on the loading table 5 is substantially constant. As shown by (arrow B), the structure is such that the elevation is automatically adjusted. Further, reference numeral 6 is a transfer plate device formed between the paper aligning device 1 and the paper feed tray 2, and forms an arc-shaped smooth paper feed surface between the paper aligning device 1 and the paper feed tray 2 which are arranged at an angle. Then, the paper a at the paper feed level B of the paper feed table 2 is erected at a suitable height for sliding movement to the paper feed level A of the paper alignment device 1, and the paper a supplied to the paper alignment device 1 is A paper holding mechanism 7 that presses and holds the front-side end of the upper surface in synchronization with the paper feed timing is formed at the tip of the transfer plate device 6.

The reversing mechanism 10 for the paper aligning device of the present invention is constructed above the transfer plate device 6, and is provided so as to project on the side frame 4 of the paper feeding table 2 or installed on the floor. An inversion shaft 13 which is horizontally installed so as to traverse the sheet feeding line of the transfer plate device 6 is rotatably cantilevered with respect to a cantilever bearing member 12 fixed to the support frame 11. The reversing shaft 13 has a large diameter on the support side and forms a roll 14 having a gentle conical outer diameter with the non-support end portion side gradually decreasing in diameter, and 10 to 20 cm above the sliding surface of the transfer plate device 6. The structure is such that the motor 15 is installed at a distance and fixedly mounted on the support frame 11 so as to rotate at an appropriate speed in the direction (arrow T) opposite to the paper feed direction (arrow F) on the transfer plate device 6. Reference numeral 16 is a restraining disc pivotably provided above the central portion of the roll 14, and one end thereof is pivotally attached to the above-mentioned support frame 11 via a pin shaft 17 and is slidably mounted in the arrow C direction. It is rotatably pivotally attached to the tip of the support shaft 18, and suppresses the disk 16 around the roll 14 by the interference of the cam member 19 provided at the base of the support shaft 18 and the support shaft 18 and the elasticity of the coil spring 20. The structure is separated from the surface. The cam member 19 is rotatably attached to the motor shaft of a control motor 21 fixed to the support frame 11, and holds the disc 16 apart at the timing (see FIG. 6) for detecting a sheet a from a sheet detection sensor 23 described later. Become.

Reference numeral 22 is a sensor support bar which is installed close to and parallel to the reversing shaft 13 and on the side of the sheet aligning device 1, and the end of the bar 22 is composed of a pair of light emitting and receiving elements. A sheet detection sensor 23 is provided to detect the end of the sheet a, which has passed over the upper side of the roll 14 and faces the sheet aligning apparatus 1 at the position of arrow D.

When the sheets a are loaded from the sheet feeding table 2 in the normal orientation to the sheet aligning apparatus 1 having the above-described configuration, the sheet bundle a is moved from the sheet feeding level B of the sheet feeding table 2 onto the transfer board device 6 (at this time). The sheet bundle a passes below the reversing shaft 13.) and slides on the transfer plate device 6 to slide it into the sheet feed level A of the sheet aligning device 1, and the stacking of bars is repeated by repeating this. It can be carried out.

Further, when performing the reversal rod stacking work, the reversal shaft 13 is rotated and driven by the motor 15, and will be described with reference to FIGS. 5 and 6. At this time, the constraining disc 16 stands by at a position retracted from the peripheral surface of the roll 14.

(1) First, an appropriate amount of the sheet bundle a is moved from the sheet feeding level B of the sheet feeding table 2 onto the transfer board device 6 (at this time, the sheet bundle a passes below the roll 14. Then, the rear end of the sheet bundle a is temporarily placed at a position where it does not pass through the reversing shaft 13 (FIG. 5A).

(2) Next, the operator grasps and lifts the rear end of the temporarily placed sheet bundle a, winds the rear end side in the rotation direction of the roll 14 (arrow T), and simultaneously rotates the rear end. Guide onto the bridge device 6 (Fig. 5b).

(3) Although the paper bundle a slides on the surface of the roll 14 due to this winding, the paper detection sensor 23 goes beyond the upper side of the roll 14 and the end of the paper a facing the paper aligning device 1 side. Is detected, and the cam member 19 is rotationally driven by the control motor 21 so that the disc 16 is lowered to the surface of the roll 14 via the central control unit (not shown) by the detection output (FIG. 5c).

(4) Therefore, the restraining disc 16 presses the sheet bundle a wound around the roll 14 against the surface of the roll 14 by the elasticity of the coil spring 20, so that the reversing shaft 13 rotates (arrow T). Along with this, the sheet bundle a is rolled up and moved, and slides on the transfer plate device 6 and is automatically fed to the sheet feeding level A of the sheet aligning device 1 in an inverted state (FIG. 5d).

When the sheet bundle a is completely moved, the detection signal from the sheet detection sensor 23 disappears, and the drive of the control motor 21 causes the cam member 19 to act on the base of the support shaft 18 again to hold the disc 16 on the roll 14 surface. Away from back.

Therefore, by repeating this, the sheets a can be fed to the sheet aligning device 1 in the inverted state and stacked on the bar. At the same time, air is supplied between the upper and lower sheets due to the folding of the sheet bundle a due to the winding on the roll 14 surface.

Further, in the configuration of the above embodiment, since the outer shape of the reversing shaft 13 is configured to present the conical outer diameter roll 14, the feeding amount of the paper on the back side is larger than that on the front side, and the winding is performed. Since the sheet bundle a that has been moved displaces the supply angle at the reversing position, the sheet bundle a that has been reversed slides in the paper aligning device 1 installed at an angle with the paper feed table 2 from the forward direction, and is effective in the paper aligning effect. Is.

[0022]

[Effect of the invention]

 As described above, the reversing mechanism for the paper aligning device according to the present invention has the reversing shaft installed above the transfer plate device, and the reversing shaft transfers the paper from the paper feed table to the paper aligning device. When sliding on the plate, it has a feature that a paper bundle can be reversed and fed by a simple process of winding it around a reversing shaft installed, and air can be supplied between the papers. In addition, since the paper is automatically fed, there are few problems such as wrinkles and folds in the reversed paper, and the simpler structure makes it possible to provide it at low cost. The practical effect after implementation of the invention is extremely large.

[Brief description of the drawings]

FIG. 1 is a front view of a paper aligning device showing an embodiment of a reversing mechanism for a paper aligning device according to the present invention.

FIG. 2 is a plan view of a paper aligning device showing an embodiment of a reversing mechanism for a paper aligning device according to the present invention.

FIG. 3 is a front view showing a reversing mechanism for a paper aligning device.

FIG. 4 is a right side view showing a reversing mechanism for the paper aligning device.

FIG. 5 is an explanatory diagram showing an operating principle of a reversing mechanism for a paper aligning device.

FIG. 6 is a timing chart showing the operation of the holding disc.

[Explanation of symbols]

 1 Paper Aligning Device 2 Paper Feeding Table 4 Side Frame 6 Transfer Plate Device 10 Inversion Mechanism for Paper Aligning Device 11 Support Frame 12 Bearing Member 13 Reversing Shaft 14 Conical Outer Diameter Roll 15 Pin Shaft 18 Support Shaft 19 Cam Member 20 Coil Spring 21 Control motor 22 Sensor support bar 23 Paper detection sensor a Paper (paper bundle)

Claims (3)

[Utility model registration claims] 1. A cantilever shaft provided with a reversing shaft composed of a roll having an appropriate outer diameter which is horizontally installed above a transfer plate device which is provided between a paper feed table and a paper aligning device so as to be orthogonal to the paper feeding direction. Then, a rotation drive device is appropriately driven to rotate in a direction opposite to the paper feeding direction on the transfer plate, and a pressing disc axially contacted so as to be rotatable and separated from and in contact with the roll surface is mounted on the roll. A reversing mechanism for a paper aligning device, which comprises a paper pressing means for pressing the roll surface in accordance with the winding paper feeding timing with respect to. 2. The reversing mechanism for a sheet aligning device according to claim 1, wherein the outer diameter of the roll is a conical shape with a gentle outer diameter. 3. The structure according to claim 1, wherein the paper pressing means has a structure in which a support shaft, which holds the disc so as to be rotatable, is swung by a cam which is installed in a control motor, and is pressed by elasticity of a coil spring or the like. The reversing mechanism for the paper aligning device according to 2.