JP2613143B2 - Apparatus and method for forming sheet pile - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for forming a sheet pile, and more particularly, to a sheet pile for forming a sheet pile composed of a product sheet and protective sheets disposed above and below the product sheet. The present invention relates to an apparatus and a method for forming a sheet pile.

[0002]

2. Description of the Related Art A sheet-like body (hereinafter simply referred to as a sheet) such as paper or a thin metal sheet is cut into a predetermined length to form a product sheet, and then conveyed to a predetermined place.
For example, a large number of sheets constituting one lot are aligned and integrated.

[0003] When product sheets are stacked in this way, a protection sheet used for protecting the subsequent product sheets is inserted for each predetermined number of sheets, which are generally unit of product packaging. This protective sheet is also generally referred to as a separation sheet, and is also used as a mark for a separation position of the stacked product sheets. For example, a sheet pile is formed on each of the upper and lower product sheets to form a sheet pile.

Conventionally, various techniques have been developed as a technique relating to inserting a protective sheet every predetermined number of product sheets to be accumulated or separating the accumulated product sheets into respective packaging units. The following methods have been used, but each has the disadvantages as described.

The first method relates to a protection sheet insertion technique, in which a merging portion with a protection sheet is set in a product sheet conveyance path, and a timing is set for each predetermined number of sheets serving as a separation unit. And the protective sheet are overlapped and inserted. (Japanese Unexamined Patent Publication No. 59-203061
However, according to the method for inserting the protective sheet, there is a problem that it is difficult to automatically separate the product sheets for each unit of packaging and form each sheet pile.

The second method is a technique relating to the insertion of a protective sheet and the separation of a product sheet. One or two protective sheets having different frictional resistances are inserted every predetermined number of product sheets, and are laterally moved by a pressing plate. To separate each sheet pile by a difference in frictional resistance. However, in this method, there is a problem that it is difficult to separate at an accurate position.

The third method is a technique relating to the separation of product sheets, wherein a gap is provided between product sheets by blowing air every predetermined number of sheets or through a separation claw, and a rod or a partition for dividing the product sheet into the gap. The product sheet is separated by inserting a gripper. (Japanese Patent Laid-Open No. 60-13776
However, in the case of this method, the surface of the product sheet is easily damaged, and it is necessary to insert the protective sheet separately to form the sheet pile, which causes a problem that the process becomes complicated. .

[0008]

As described above, conventionally,
There has been no known method of forming a sheet pile by effectively stacking product sheets, inserting a protective sheet, and separating a predetermined number of product sheets by a single integrated method.

Accordingly, the present invention provides an apparatus and a method for forming a sheet pile in which a sheet pile is formed by substantially simultaneously inserting a protective sheet and separating a product sheet at the time of stacking product sheets, The purpose of the present invention is to rationalize the work of the sheet stacking process and the next packaging process.

[0010]

In order to achieve the above object, a sheet pile forming apparatus according to the present invention comprises a sheet pile comprising a product sheet and protective sheets disposed on upper and lower portions of the product sheet. In a sheet pile forming apparatus for forming, a detecting means for confirming that a certain number of sheets have been integrated with respect to a product sheet flowing at a predetermined number of sheets by an upstream preceding step,
A sheet stacking panel movable between a product sheet stacking position located below a downstream end of the product sheet conveying means and a protection sheet stacking position, a lower surface of the sheet stacking panel at the stacking position; And a protection sheet supply means for supplying first and second protection sheets to the upper surface in a timely manner by detection by the detection means, and protection for dropping the first protection sheet on the lower surface of the sheet accumulation panel at the accumulation position. Sheet dropping means, sheet receiving means for receiving the second protection sheet and the product sheets stacked on the second protection sheet in an accumulated state, and the first protection sheet dropped by the protection sheet dropping means is The second protective sheet received by the sheet receiving means and the product sheet, After yl is formed, it is characterized in further comprising a sheet pile unloading means for unloading the sheet stack.

[0011] The method for forming a sheet pile according to the present invention comprises:
In a sheet pile forming method for forming a sheet pile composed of a product sheet and a protection sheet disposed at an upper portion and a lower portion of the product sheet, a first protection sheet is provided on a lower surface of the sheet accumulation panel. A protective sheet supply step of supplying a second protective sheet to the upper surface, respectively, and detecting the distance between the product sheets flowing through the sheet stacking panel at predetermined intervals by the upstream upstream process. A sheet stacking panel introduction step of moving to a product sheet stacking position located below the downstream end of the product sheet conveying means at a time, and the first protection supplied to a lower surface of the sheet stacking panel. The sheet is dropped on sheet receiving means, and the second sheet supplied to the upper surface of the sheet stacking panel is
A product sheet stacking step of stacking the product sheets on the protection sheet, moving the sheet stacking panel from the stacking position to the loading position, and transferring the second protection sheet and the product sheet being stacked to the stacking position. And periodically repeats the sheet delivering step of delivering the sheet to the sheet receiving means, and further falls in the product sheet collecting step of the next cycle with the second protective sheet and the product sheet received in the sheet delivering step. A sheet pile unloading step of periodically unloading a sheet pile formed from the first protection sheet and the sheet pile through sheet unloading means is provided.

[0012]

According to the sheet pile forming apparatus and method of the present invention, the sheet stacking panel supporting the protective sheet on the upper surface and the lower surface is formed into a product sheet flowing at a predetermined interval by a predetermined number of sheets in the upstream upstream process. On the other hand, this interval is detected and introduced at a timing to the product sheet stacking position, the first protective sheet on the lower surface is dropped, and the product sheet transported by the transport means is placed on the second protective sheet on the upper surface. The first protective sheet is dropped on the lower protective sheet already arranged on the sheet receiving means and the product sheet accumulated on the lower protective sheet, and the upper protective sheet of the product sheet is dropped. And the first sheet pile formed as a result is carried out by the sheet pile carrying-out means. On the other hand, the second protection sheet of the sheet stacking panel and the next product sheet stacked thereon are delivered to the empty sheet receiving means in the stacked state, and the sheet stacking panel is stacked on the product sheet. From the position to the loading position of the protection sheet, and the next first and second
Is supplied and is again introduced into the sheet stacking position. The protection sheet dropping means places the first protection sheet on the lower surface of the sheet stacking panel on the sheet receiving means.
When dropped on the protective sheet and product sheet, the second
Sheet pile is formed, and the sheet pile discharging means is:
The second sheet pile is received from the sheet receiving means, and the sheet pile is unloaded again. This operation is repeated sequentially and periodically, and a sheet pile is continuously formed and carried out.

According to the sheet pile forming apparatus and method of the present invention having the above structure, the supply of the protection sheet, the accumulation of the product sheets, the formation of the sheet pile, and the unloading thereof are performed by
Since the processes are performed continuously by one method and one set of devices, the whole process is performed in a short time and automation is extremely easy. Alternatively, since there is no fear of occurrence of damage such as breakage, a sheet pile forming apparatus and method capable of both reducing costs and maintaining product quality can be provided.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view for explaining the structure of a sheet pile forming apparatus according to one embodiment of the present invention. In the figure, a long sheet is cut by a sheet cutting device (not shown) to be a product sheet 1 and conveyed by a product sheet conveying conveyor 2.

At the sheet stacking position where product sheets are stacked below the downstream end of the product sheet conveyor 2,
A fork panel 6 formed as a sheet stacking panel and having a large number of teeth formed in a skewed tooth shape or a saw-tooth shape is located. The fork panel 6 is located at the sheet stacking position and in front of the sheet stacking position in the drawing, that is, It is arranged so as to be movable in the horizontal direction indicated by arrow A between the product sheet transport conveyor 2 and the loading position of the protection sheet arranged on the side facing the product sheet conveyor 2. The fork panel 6 has an air suction hole for sucking a protective sheet on a lower surface.

On the protective sheet supply table 9, a protective sheet transport gripper 10 is provided.
Numeral 0 is guided in the horizontal direction through the guide groove 9A of the protection sheet supply table 9, and can convey the protection sheet 8 in the direction of arrow B perpendicular to the moving direction of the fork panel 6. Thus, the first protection sheet 8 can be supplied to the suction table 11 movably arranged in the up-down direction (C direction) at its raised position, and the suction table 11 is at the lowered position. When the fork panel 6 is located above the suction table 11 where the protection sheet is loaded, the fork panel 6
Also, the second protective sheet 8 can be supplied on the upper surface.
When the fork panel 6 receives the supply of the second protective sheet on the upper surface, the fork panel 6 simultaneously holds the first protective sheet disposed on the suction table 11 via the suction port on the lower surface and loads the protective sheet.

The sheet stacking position is surrounded at the rear, side and front by joggers 3, 4, and 5, respectively, for aligning the respective sheets. The front jogger 5 has a fork panel 6 and a sheet pile unloading means at the upper and lower ends, respectively. With an opening for Doors 5a and 5b are respectively attached to both openings.

In FIG. 1, the joggers 3, 4, and 5 are partially omitted for easy understanding. The sheet blocking means 5a, which forms the door at the upper end of the front jogger 5, has a plurality of pawls at its lower end which are alternately arranged with a number of teeth of the fork panel 6.

Below the fork panel 6 at the sheet stacking position, a skewer-shaped sheet receiving and moving base 12 constituting sheet receiving means and a sheet pile unloading means are formed. Sheet pile conveyor 14 having a large number of teeth alternated with receiving stand 12
And are arranged. The sheet receiving gantry 12 further has teeth that are alternately combined with the teeth of the fork panel 6 and can move vertically in the space below the sheet stacking position. It is higher than the upper surface of the fork panel 6, at the next upper position at the position immediately below the lower surface of the fork panel, and at the lowermost position, the upper surface is lower than the upper surface of the sheet pile transport conveyor 14, It is possible to stop at each height position. When the sheet receiving frame 12 reaches the lowermost end, the sheet pile conveying conveyor 14 receives the set sheet pile 13 from the sheet receiving moving frame 12 and can convey the sheet pile 13 in the horizontal direction.

A sheet pile transport gripper 15 and an air table 16 are disposed below the suction table 11 at a position substantially equal to the height of the sheet pile transport conveyor 14, and the door 5b of the front jogger 5 has a part at the lower end. There is a notch, and a sheet pile transport gripper 15 is arranged so as to be located at the notch. Thus, the sheet pile transport gripper 15 can grip the sheet pile 13 with the door 5b of the front jogger 5 closed, and when the jogger is opened, grips the sheet pile 13 and transports it in the direction of arrow D. Thus, the sheet pile 13 can be conveyed without shifting.

The operation of the sheet pile forming apparatus of the embodiment configured as described above will be described with reference to FIGS.

FIG. 2 shows that the fork panel 6 is moved from the suction table 11 and the protection sheet transport gripper 10 to the first and second protection sheets 2 at the protection sheet loading position above the suction table 11, respectively.
After receiving the protective sheets 1 and 22 (protective sheet loading step), the product sheets 1 flowing at a predetermined number of intervals by an upstream pre-process (not shown) while supporting them on the upper surface and the lower surface, respectively. 3 shows a state in which the sensor 30 detects a break in the product sheet 1 due to the sensor 30 and takes a time to carry it into the product sheet stacking position (sheet stacking panel insertion step).

The front jogger 5 provides a passage for inserting the fork panel 6 by flipping up the sheet blocking means 5a forming a door at the upper end opening. Further, the sheet receiving and moving gantry 12 is in the upper position, and has already supported the lower protective sheet and the product sheet bundle 23 for the first sheet pile on the pedestal.

From the state shown in FIG. 2, the fork panel 6 moves to the sheet stacking position, and the sheet stacking panel introduction step is completed. Next, the fork panel 6 stops the suction of air from the suction port on the lower surface, and drops the first protective sheet 21 supported on the lower surface onto the sheet receiving and moving gantry 12 arranged at the upper position. As a result, the first set of sheet piles 13 on the sheet
Is formed, and then the sheet receiving and moving gantry 12 descends. Also, the second protective sheet 2 on the upper surface of the fork panel 6
The product sheet 1 is supplied from the product sheet conveying means 2 and accumulated on the top 2, and the upper end opening of the front jogger 5 is closed by the door 5 a at the upper end except for the penetrating portion of each tooth of the fork panel 6. (FIG. 3). Further, the next protection sheet 21 is supplied to the suction table 11 by the protection sheet transport gripper 10.

When the sheet receiving and moving platform 12 is lowered and its upper surface is located below the upper surface of the sheet pile unloading conveyor 14, the sheet pile 13 thereon is transferred to the sheet pile unloading conveyor 14, and the sheet pile unloading gripper 15 is moved. Grips the sheet pile 13 and then receives the opening of the door 5b at the lower end of the front jogger 5, and carries it out in the direction of arrow D (FIG. 4). On the other hand, the suction table 11 that has received the next first protection sheet 21 moves downward.

When the unloading of the sheet pile 13 is completed, the door 5b at the lower end of the front jogger is closed, and the sheet receiving and moving base 12 is raised again (FIG. 5). At this time, the product sheets are accumulated on the second protection sheet on the fork panel 6.

When the sheet receiving / moving gantry 12 reaches the uppermost position above the fork panel 6, the product sheet / lower protective sheet set 23 is moved to the sheet receiving gantry 12.
Supported by the skewer of the. The fork panel 6 then moves from the sheet stacking position to the protection sheet loading position,
Finally, the sheet delivery step ends (FIG. 6). At this time, the product sheet and the lower protection sheet are prevented from jumping out of the accumulation position by the door 5a at the upper end of the front jogger, that is, the sheet blocking means. Next, the fork panel 6
At the protection sheet loading position, the first and second protection sheets 21 and 22 of the next cycle are supplied to the lower surface and the upper surface, respectively. When the sensor 31 detects a break in the product sheet 1, the sheet receiving and moving base 12 during accumulation is
Moves right below the fork panel 6. The state shown in FIG. 6 is changed to the state shown in FIG. 2 again, and the above-described steps are sequentially and periodically repeated. One sheet pile is formed in each cycle, and the sheet pile is conveyed to the place of the subsequent packaging step.

In the present embodiment, the sheet receiving means is constituted as a skew-shaped sheet receiving moving gantry, and is moved between a sheet stacking panel similarly formed in the skew-shaped shape and the sheet pile conveying means. Although the receiving or supplying of the sheet is enabled, the present invention is not limited to this configuration. For example, the second protective sheet and the product sheet are moved when the sheet stacking panel 6 is moved via the door 5a at the upper end serving as sheet blocking means. By stopping and dropping the sheet, the sheet can be transferred to a stationary sheet receiving means.

[Brief description of the drawings]

FIG. 1 is a perspective view of a sheet pile forming apparatus according to an embodiment of the present invention.

FIG. 2 is a side view for explaining the operation of the sheet pile forming apparatus of FIG. 1;

FIG. 3 is a side view for explaining the operation of the sheet pile forming apparatus of FIG. 1;

FIG. 4 is a side view for explaining the operation of the sheet pile forming apparatus of FIG. 1;

FIG. 5 is a side view for explaining the operation of the sheet pile forming apparatus of FIG. 1;

FIG. 6 is a side view for explaining the operation of the sheet pile forming apparatus of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Product sheet 2 Product sheet conveyance conveyor 6 Fork panel (sheet accumulation panel) 8 Protective sheet 12 Sheet receiving and moving stand (sheet receiving means) 13 Sheet pile 14 Sheet pile conveyance conveyor 15 Sheet pile conveyance gripper

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location B65H 39/06 B65H 39/06

Claims (3)

(57) [Claims] 1. A sheet pile forming apparatus for forming a sheet pile composed of a product sheet and protective sheets respectively disposed at an upper portion and a lower portion of the product sheet, wherein a predetermined number of sheets are formed by an upstream pre-process. Detecting means for confirming that a certain number of product sheets have been collected while flowing at intervals, and a stacking position of the product sheets located below a downstream end of the conveying means for the product sheets; A sheet stacking panel movable between the sheet stacking position and the sheet stacking panel, wherein at the stacking position, first and second protection sheets are supplied to the lower surface and the upper surface of the sheet stacking panel, respectively, in a timely manner by detection by the detection means; Protection sheet supply means for dropping the first protection sheet on the lower surface of the sheet stacking panel at the stacking position Protection sheet dropping means, sheet receiving means for receiving the second protection sheet and the product sheets stacked on the second protection sheet in an accumulated state, and the first protection sheet dropped by the protection sheet dropping means. An apparatus for forming a sheet pile, comprising sheet pile unloading means for unloading the sheet pile after the sheet pile is formed by dropping onto the second protection sheet and the product sheet received by the sheet receiving means. 2. A sheet conveyer constituting said sheet stacking panel, sheet receiving means, and sheet pile conveying means are each formed in a skewed tooth shape, and said skewer teeth of said sheet receiving means are said sheet stacking panel and said conveying conveyor. The upper surface of the sheet receiving means is located above the upper surface of the sheet stacking panel, and the lower end position is located below the upper surface of the sheet pile conveying means. The sheet pile forming device according to claim 1, wherein the sheet pile forming device is movable in a direction. 3. A sheet pile forming method for forming a sheet pile composed of a product sheet and protective sheets respectively disposed on an upper portion and a lower portion of the product sheet. A protective sheet supply step of supplying a first protective sheet and a second protective sheet on the upper surface, respectively; and a sheet stacking panel for a product sheet flowing at a predetermined number of intervals in the upstream pre-process. ,
A sheet stacking panel introduction step of detecting the interval and taking a timing to move to a stacking position of the product sheet located below the downstream end of the product sheet transporting means; and A product sheet stacking step of dropping the first protection sheet onto sheet receiving means and stacking the product sheets on the second protection sheet supplied to the upper surface of the sheet stacking panel; A sheet transfer step of moving the second protective sheet and the product sheet being stacked to the sheet receiving means at the stacking position while periodically moving the sheet from the stacking position to the loading position; The second received in the step
Sheet pile unloading, which periodically unloads a sheet pile formed from the protective sheet and the product sheet described above and the first protection sheet that falls in the product sheet stacking step in the next cycle via sheet unloading means. A method for forming a sheet pile having steps.