JPH083414Y2 - Sheet stacking and conveying device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention accumulates a specific sheet and selects a specific discharge port corresponding to the accumulated sheet from a plurality of discharge ports and feeds the selected sheet. The present invention relates to a sheet stacking and conveying device.

[Prior Art] In a conventional sheet stacking and conveying apparatus of this type, when the sheets are stacked, the upper conveying means is moved upward in parallel, so that a large space is provided or the conveying means is swung to each discharge port. It was composed of a complicated link mechanism in order to make it face.

[Problems to be Solved by the Invention] However, in such a conventional sheet stacking and conveying apparatus, for example, when the apparatus is incorporated to form a sheet sorting apparatus, the whole apparatus becomes large. there were.

In addition, since a plurality of link mechanisms are configured, there is a problem that the cost becomes high.

[Object of the Invention] The present invention has been made in view of the above-mentioned problems in the conventional technology, and has a simple structure, and the operating range of each conveying means is extremely small, and the entire apparatus can be made compact. An object of the present invention is to provide a sheet stacking and conveying device.

[Means for Solving the Problems] The gist of the present invention for achieving the above object is to provide a plurality of sheet discharge ports and a conveyance path leading to the sheet discharge ports, and stack and sandwich the sheets. A sheet stacking / conveying device having a stacking / dividing means composed of a pair of upper / lower conveying means for selecting and discharging one of the sheet discharge ports, a guiding means for guiding one of the pair of upper and lower conveying means; One of the transportation means guided by this guiding means,
A second position for sandwiching the sheet between a first position at which the sheet is stacked with at least the other transport unit and a space for stacking the sheet, and transporting the stacked sheet to one of the sheet discharge ports. And a guide means for displacing the sheet while sandwiching the sheet together with the other conveying means and guiding the accumulated sheet to a third position for conveying the accumulated sheet to another sheet discharge port. The sheet stacking and conveying apparatus is characterized in that one of the conveying means for guiding the guide is constituted by a guide cam groove that is displaced to each of the first to third positions.

[Operation] For example, when the upper conveying unit is in the first operation position, the upper portion of the lower conveying unit is open, so that the sheet delivered from the delivering unit is delivered to the lower conveying unit,
Will be accumulated.

Then, the type of the accumulated sheets, for example, in the case of a defective sheet, is guided to, for example, the lower discharge port, and in the case of a normal sheet, it is guided to the upper discharge port.

Then, when the sheets have been accumulated on the lower conveying means, the guide shaft supporting the upper conveying means is guided by the guide cam groove to descend to the second operation position, and the lower conveying means is conveyed. The sheets accumulated on the means are sandwiched and overlapped on the lower conveying means. For example, in the case of a normal sheet, the sheet is discharged from the position as it is toward the upper discharge port.

In the case of a sheet with a flaw, the guide shaft further descends along the guide cam groove, and both upper and lower conveying means rotate to the third operation position while holding the sheet, and the sheet from the lower discharge port. Eject the sheet.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 to 3, the sheet stacking and conveying apparatus 10 is provided with a feeding means 12 for feeding sheets one by one in the inner portion of the machine frame 11, and in front of the feeding means 12. Stacking and branching means comprising the transporting means 21 and the transporting means 40 below
20 are provided.

The feeding means 12 is composed of an upper feeding belt 14, a lower feeding belt 15, and a feeding roller 16 with the fixed feeding guide 13 interposed therebetween.

As shown in FIG. 1, the fixed transport guide 13 is a feeding roller.
It is bent downward from 16 to hold the rear end of the stacked sheets.

The lower conveying means 40 is formed by stretching a conveying belt 43 between a pair of belt rollers 41 and 42. Belt roller 41,
The shaft 42 of the belt roller 41 is supported by a support plate (not shown), and the shaft 44 of the belt roller 41 is provided with upper and lower conveying means 21, 40 via gear means.
Drive motor 45 is coupled.

The shaft 44 also serves as the center of rotation of the lower conveying means 40.

Further, a spring 46 is wound around the shaft 44, and the spring 46 engages with a support pin 47 planted on a support plate (not shown) and holds the lower conveying means 40.

As shown in FIG. 3, the upper conveying means 21 has a pair of support plates 22,
A conveying belt 25 is stretched between a pair of left and right belt rollers 23 and 24 which are erected on the 22.

A guide shaft 26 rotatably penetrates through the support plates 22 and 22, and
The guide levers 27, 27 and the guide shaft fixing levers 28, 28 are pivotally attached to the outside of the side plate 11a of 11.

On the other hand, a guide cam groove 17 as shown in the first is formed in both side plates 11a of the machine frame 11, and the guide shaft 26 is configured to be movable while being guided by the guide cam groove 17. There is.

The guide lever 27 is connected to the guide shaft 26 through an elongated hole A27a. Further, a drive lever 29 for guiding the guide lever 27 and a drive motor 30 for driving the drive lever 29 are provided.

A restriction pin 31 planted in the guide shaft fixing lever 28 is inserted into the other elongated hole B27b of the guide lever 27.

An upper discharge port 18 is opened on the entire surface of the machine frame 11, and a lower discharge port 19 is provided further below.

 Next, the operation will be described.

When the sheet is fed from the feeding means 12, the upper conveying means 21 is in the first operating position (indicated by A in the figure) above the machine frame as shown in FIG. Induction axis at this time
The operation of 26 and related members of the guide means is shown in FIG.

That is, the guide shaft 26 is located at the uppermost position of the guide cam groove 17, and is fixed by the guide shaft fixing lever 28 at this position.

In the above state, the sheets are dropped and accumulated on the conveyor belt 43 of the conveyor means 40 below. When the number of sheets reaches the predetermined number, the upper transporting means 21 descends onto the lower transporting means 40 according to a command from a control means (not shown), and as shown in FIG. Occupy (indicated by B). At this time, the sheets accumulated on the lower conveying unit 40 are sandwiched.

The operation of the related members at this time is shown in FIG. Then, the content of the sheet, for example, in the case of a normal sheet, is discharged from the upper discharge port 18 in the same posture. The discharge operation is also transmitted to the upper conveying means 21 via the sheet by driving the belt roller 41 of the lower conveying means 40 by the drive motor 45 and driving the conveying belt 43 by this driving force.

If the sheet has a flaw, the guide shaft 26 moves to the lowermost portion along the guide cam groove, and at that time, the upper conveying means 21
Rotates the lower conveying means 40 around the shaft 44 against the urging force of the spring 46, moves to the third operating position (C) while holding the sheet, and at this position C, The sheet is discharged toward the discharge port 19.

[Advantages of the Invention] According to the present invention, a sheet is stacked between a guide means for guiding one of a pair of upper and lower conveying means and one conveying means guided by the guiding means, and at least the other conveying means. A second position at which a sheet is sandwiched between a first position and an interval at which the sheet is conveyed and the accumulated sheet is conveyed to one of the sheet discharge ports, and another sheet is conveyed while the sheet is clamped. Guide means for displacing the accumulated sheet to another sheet discharge port and for guiding the accumulated sheet to a third position, and one guide means for guiding the guide means to guide the guide means. Since the guide cam groove is configured to be displaced to each of the first to third positions, it is possible to provide a sheet stacking / conveying device having a simple structure, an extremely small operation range of each conveying means, and a small size of the entire device. did it.

[Brief description of drawings]

1 to 7 show an embodiment of the present invention. FIG. 1 is a vertical sectional side view of a main part of a sheet stacking and conveying apparatus, FIG. 2 is a plan view of the same, and FIG. FIG. 4 is an operation explanatory view of the related members when the means is in the first operation position, FIG. 4 is a side view of an essential part when the upper conveying means is in the second operation position, and FIG.
The figure is also an operation explanatory view of the related member, FIG. 6 is a side view of a main part in the third operation position, and FIG. 7 is an operation explanatory view of the related member. 10 …… Sheet stacking and conveying device 17 …… Guide cam groove (guide means) 18 …… Upper discharge port, 19 …… Lower discharge port 20 …… Stacking branching device 21 …… Upper transporting device 26 …… Induction shaft (Guide means) 27 ... Guide lever (guide means) 28 ... Guide shaft fixing lever (guide means) 40 ... Lower transport means A ... First operating position B ... Second operating position C ... Third operating position

Claims (1)

[Scope of utility model registration request] 1. A plurality of sheet discharge ports and a conveyance path leading to the sheet discharge ports for stacking and nipping the sheets,
In a sheet stacking and conveying apparatus including a stacking and branching unit including a pair of upper and lower conveying units that selectively discharge one of the sheet discharge ports, a guiding unit that guides one of the pair of upper and lower conveying units, and the guiding unit. One of the transportation means guided by the means,
A first position for sandwiching the sheet between at least the other conveying means and the first position where the sheet is stacked, and the other conveying means for conveying the accumulated sheet to one of the sheet discharge ports. The second position and the guide means for displacing the sheet while sandwiching the sheet together with the other conveying means and guiding the sheet to the third position for conveying the accumulated sheet to another sheet discharge port are provided, and the guide means is used for guiding the guide sheet. A sheet stacking and conveying apparatus, characterized in that it comprises a guide cam groove for guiding one of the guiding means and displacing the one conveying means to the first to third positions.