JPH0750347Y2 - Paper feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a sheet feeding device that feeds the uppermost sheets of the stacked sheets one by one to the next step, and in particular, the outer shape (on the outline) is uneven. The present invention relates to a sheet feeding device for feeding a sheet having a section.

<Prior Art> Conventionally, a sheet feeding device for feeding sheets one by one has been used for a printing machine or a carton blanks processing machine. In this system, a large number of sheets are stacked on a loading table having an elevating device, and the uppermost sheet is sucked up by a sucker (intake nozzle) and fed forward a certain distance. The sheet sent out in this way is conveyed to the next step by a conveying device such as a roller or a belt. At this time, a rotatable guide member is provided above the supporting member on the sending side of the stacking base so that the sheets other than the uppermost sheet are not sent out at the same time or the sheet is bent and not sent out. In conjunction with, the sheet is rotated in the sheet feeding direction so that only the uppermost sheet is fed smoothly.

<Problems of the prior art> However, in the above-mentioned paper feeding device, there is no problem when feeding a sheet having no irregularities on the outer shape (outline), but when feeding a carton blank or the like having an irregular outer shape, a loading platform There is a portion that comes into contact with the supporting member and a portion that does not come into contact with the supporting member. Therefore, there is a problem that the sheet is bent and fed from the sheet feeding device, jammed, or misregistration occurs in the next process. .

<Means for Solving the Problems> The present invention has been made to solve the above-mentioned problems, and is a feeding means for feeding the uppermost sheet of a plurality of laminated sheets and an outer shape portion on the feeding direction side of the sheets. A first guide which is provided on a supporting member in the sheet feeding direction and rotates in the feeding direction in synchronization with the feeding operation of the feeding means. And a second guide member that is provided on an auxiliary support member located inside the first guide member with respect to the sheet feeding direction and that rotates in the feeding direction in synchronization with the first guide member. And a sheet feeding device.

<Operation> The paper feeding device according to the present invention is configured as described above, and the first and second guide members are set in accordance with the uneven portions of the sheet.

When the feeding means such as soccer sucks up the upper end sheet and sends it out in the direction of the next process, the first sheet is synchronized with the first step.
The guide member of is tilted forward. The second guide member is the first
The sheet is held by the two guide members until just before it is sent out because it is connected to the guide member of the sheet and moves forward in the sheet sending direction in synchronization with this. Forward and send out the sheet.

<Embodiment> An embodiment of the paper feeding device according to the present invention will be described in detail with reference to the drawings. 1 and 2 show the essential parts of an embodiment of the present invention, in which 1 is a support member, 2 is a first guide member, and 3 is a second guide member.

The support members 1 are provided on the sheet 6 delivery side of the stacking base 5 which is surrounded by the flexible member 4 on the side, and are provided in pairs at intervals slightly wider than the width of the sheets 6. First guide member 2
Is a rod 7a provided above the pair of supporting members 1.
And a suitable number of claw members 8a provided on the rod 7a. Further, the claw member 8a is connected to the rod 7a by the pin 9 on the rod 7a.
It is fixed and released on the rod 7a and can freely slide on the rod 7a when the pin 9 is loosened and released.

The second guide member 3 includes an auxiliary support member 10 provided so as to be located inside the support member 1 of the loading table 5, and a claw member 8b rotatably provided at an upper end of the auxiliary support member 10. ,
It comprises a spring member 11 for connecting the claw member 8b to the rod 7a.

The auxiliary supporting member 10 is located below the rod 7a and is held by a fixing member 12 provided on the rod 7b held by the supporting member 1. The fixing member 12 is slidable on the rod 7b and is connected to the auxiliary supporting member 10 by a connecting rod 13. The connecting rod 13 is slidably held by the fixing member 12, and the distance from the supporting member 1 can be freely adjusted.

A holding member 14 is used to connect the spring member 11 to the rod 7a. The holding member 14 is fixed / released by the pin 9 similarly to the claw member 8a and can slide on the rod 7a. The position can be adjusted.

An elevating device 15 is provided below the mounting table 5, and a position sensor such as a photoelectric tube (not shown) is provided on the mounting table 5 to detect the uppermost portion of the sheet 6. Therefore, when the uppermost sheet 6a is sent out and the uppermost portion is lowered, the position sensor detects this and sends a command to an elevating device (not shown) to raise the sheet 6a, so that the sheet 6
The uppermost part of the is in a fixed position.

Further, above the stacking table 5, a soccer (intake nozzle) 15 and a blowing foot 16 are provided as a means for sending out the sheet 6.

The soccer 15 has an intake hole and is movable in the front-rear direction, and the blowing foot 16 has an air outlet at the claw-shaped tip portion, which is movable in the front-rear direction in conjunction with the soccer 15. ing.

Next, the operation of the sheet feeding device according to the present invention will be described.

After printing, a plurality of cut or punched sheets 6 are placed on the stacking table 5. At this time, the frame member 4, the first guide member 2, the second guide member 3, and the auxiliary support member 10 are aligned according to the outer shape of the seat 6. The first guide member 2 slides the claw member 8a by loosening the pin 9 to perform alignment. Similarly, the second guide member 3 slides the holding member 14 and at the same time slides the fixing member 12 to perform the alignment.

In this state, the seat 6 does not move or bend even if external force or the like is applied because the outer concave portion is also supported by the auxiliary supporting member 10 and the side portions are also supported by the frame member 4.

When the work is started, the suckers 15 arranged in two stages, front and rear, lift the uppermost sheet 6a of the loading platform 5 by the suction action of a vacuum pump (not shown) connected to the suction holes (see FIG. 3 (a)).

In this way, when one sheet 6a is separated, the blowing 16 from below is inserted below the sheet 6a while blowing air from the air blowing port at the tip. In this way, when the seat 6a is completely separated from the next seat, the soccer 15 and the blowing 16 synchronously feed the seat 6a forward (see FIG. 3 (b)). Then, at this time, since the power of the soccer 15 and the blowing 16 rotates the rod 7a via the transmission means such as a cam, the claw member 8a also falls in the sheet feeding direction, and the holding member 14 rotates to rotate the spring member.
The claw member 8b is tilted forward via 11 (see FIG. 3 (c)).
Thus, the claw member 8a on the front side of the sheet 6a in the feeding direction,
8b falls down in synchronization with the soccer 15 and the blowing feet 16, and the seat 6a can be smoothly sent out.

The sheet 6a sent out in this way is sent to the next step (for example, window pasting step or folding step) by the conveyor belt 17. If the sheet 6a is sent out in the correct position after being separated, it will not be bent and sent to the next process because it is supported by the conveyor belt 17 from above and below, and will not be stuck and overlapped on the way. .

<Effect> The sheet feeding device according to the present invention is configured as described above, is supported in conformity with the outer shape of the sheet, and can be sent to the next process while maintaining this state. Even if there is, it is possible to prevent bending and clogging at the time of sending.

[Brief description of drawings]

The drawings show an embodiment of the sheet feeding device of the present invention. FIG. 1 is a perspective view of a main part thereof, FIG. 2 is an explanatory view showing a position of a claw member, and FIG. 3 is an explanatory view showing its action. Is. 1 ... Support member 2 ... First guide member 3 ... Second guide member 5 ... Stacking table 6 ... Sheet 7a, 7b ... Rod 8a, 8b ... Claw member 10 ... Auxiliary support member 11 ...... Spring member 15 …… Soccer

Claims (1)

[Scope of utility model registration request] 1. A sheet feeding device having a feeding means for feeding the uppermost sheet of a plurality of stacked sheets and a guide member that comes into contact with an outer shape portion of the sheet on the feeding direction side, wherein the guide member is the A first guide member provided on a supporting member in the sheet feeding direction and rotating in the feeding direction in synchronization with the feeding operation of the feeding means; and an inner side of the first guide member with respect to the sheet feeding direction. 2. A sheet feeding device, comprising: a second guide member that is provided on an auxiliary support member that is located at a position that rotates in the feeding direction in synchronization with the first guide member.