JP2001072018A - Carton sheet taking-out method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the work efficiency of feeder equipment by greatly decreasing the deflective rate where a sheet is taken out selectively from a carton sheet supply part. SOLUTION: This relates to a sheet taking-out method. A feeder provided with a suction member 4, which is supported projectingly outward in the diameter direction on a rotator, provided at the tip with a sucking cup 6 elastically deformable in an axis direction, and made to move back and forth toward a sheet when the cup 6 reaches a turning angle position facing the frontmost sheer 13 of a sheet supply part 12, is used. When a member 4 is moving forward, the cup 6 is pressed on a sheet face for sucking and holding the sheer, and then the member 4 is moved backward in this condition for taking out one sheet at a time from the supply part 12. The position for the cup 6 to be pressed on the sheet face is made near the bottom edge of the sheet face, and the supply part 12 is positioned inclined relative to the back and forth moving direction of the member 4 so that the top side 6a of the cup 6 tip end edge in the peripheral direction touches the sheet face before the bottom side 6b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large number of cartons supplied to a carton sheet supply section of a can-row multi-pack caser for automatically storing a predetermined number of cans in carton sheets in a factory for producing canned beer or the like. The present invention relates to a method of taking out sheets one by one using a feeder device.

[0002]

2. Description of the Related Art As a feeder device used in a conventional method of taking out a carton sheet of this kind, Japanese Patent Publication No. 47-4 / 1976 is used.
The thing described in 8468 is known. As shown in FIGS. 4 and 5, the feeder device includes a rotary driving body 1 arranged with a rotation axis directed substantially in a horizontal direction, and a hub 2 fixed externally to the rotary driving body 1. And a suction member 4 supported via a link mechanism 3 so as to protrude radially outward of the driving body 1.

The suction member 4 includes a shaft 5 fixed to the link mechanism 3 and a suction cup 6 attached to the tip of the shaft 5 and elastically deformable in the axial direction. A plurality (three places in the figure) are arranged at substantially equal intervals in the rotation direction. The link mechanism 3 includes a cam groove 8 of a cam 7.
A cam follower 9 is pivotally mounted. The cam groove 8 is formed continuously in the circumferential direction, and has a substantially circular portion 10 and a protruding portion 11 projecting radially outward from the circular portion 10.

The protruding portion 11 is provided in the carton sheet supply section 1.
2 are supplied so as to face the frontmost sheet 13 of the plurality of carton sheets 13, 13...
Therefore, when the rotation follower 1 rotates and the cam follower 9 provided on the link mechanism 3 passes through the projecting portion 11 of the cam groove 8, the suction member 4 is attached to the frontmost sheet 13 of the carton sheet supply section 12. It is designed to move forward and backward. In the drawing, reference numerals 16a and 16b denote stoppers which respectively engage the upper and lower side surfaces of the frontmost sheet 13 of the carton sheet supply unit 12 to hold the sheet 13.

When the suction member 4 moves forward, the suction cup 6 is pressed against the frontmost sheet 13 and the sheet 13 is suction-held by vacuum suction or the like. In this state, the suction member 4 retreats, The sheet 13 is taken out from the carton sheet supply unit 12. The sheet 13 taken out from the carton sheet supply unit 12 is suction-held by the suction cup 6 and is positioned above the row of cans 15 conveyed on the conveyor 14 by rotating the suction member 4 counterclockwise in FIG. At this point, the suction force of the suction cup 6 is released at this position, and the suction cup 6 is placed on the upper surface of the can row 15. After the frontmost sheet 13 is taken out, the second sheet 13 is taken out of the carton sheet supply unit 12 by the subsequent suction member 4 in the same manner as described above.

[0006]

However, in such a conventional method of taking out a carton sheet, the position where the suction cup 6 is pressed against the surface of the sheet 13 when the suction member 4 advances is substantially at the center of the sheet surface. Therefore, the forefront sheet whose central portion is pressed against the suction cup 6 and the second sheet come into close contact with each other, and the suction member 4 is retracted to remove the forefront sheet 13.
As a result, the second sheet 13 is displaced after the foremost sheet 13 is taken out, and the second sheet 13 is taken out by the succeeding suction member 4 to remove the upper surface of the can row 15. When the paper feeder is placed on the feeder, there is a problem that the take-out failure often occurs, and the feeder device is forced to stop, and the operation efficiency of the device is reduced.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and a carton capable of improving the operation efficiency of a feeder device by greatly reducing the rate of occurrence of defective sheet removal in a carton sheet supply unit. An object of the present invention is to provide a method for taking out a sheet.

[0008]

SUMMARY OF THE INVENTION In order to solve such a problem, a method for taking out a carton sheet according to the present invention comprises: a rotating driver having a rotation axis oriented substantially in a horizontal direction; A plurality of carton sheets that are supported by the rotary driving body in a state of protruding radially outward, have a suction cup at an end portion that can be elastically deformed in the axial direction, and the suction cup is supplied to a carton sheet supply unit. And a suction member configured to move forward and backward toward the forefront sheet when the rotation angle position facing the forefront sheet is reached. The cup is pressed against the frontmost sheet surface to hold the sheet by suction, and in this state, the suction member is retracted, so that the sheets are fed one by one from the carton sheet supply unit. In the method for taking out a carton sheet, the position where the suction cup is pressed against the sheet surface when the suction member is advanced is set near the lower edge of the sheet surface, and further, the suction cup is moved when the suction member is advanced. The carton sheet supply unit is arranged so as to be inclined with respect to the direction in which the suction member moves forward and backward such that an upper portion in the circumferential direction of the leading edge contacts the sheet surface before a lower portion.

According to a second aspect of the present invention, in the method for removing a carton sheet according to the first aspect, an angle between the frontmost sheet surface and a tip end surface of the suction cup is 20 to 30.
The carton sheet supply unit is tilted so as to be in the range of °.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory schematic diagram for explaining a method of taking out a carton sheet which is an example of an embodiment of the present invention, FIG. 2 is an explanatory schematic diagram for explaining a state in which a suction member is retracted, and FIG. FIG. 4 is an explanatory diagram for explaining a warp of a carton sheet. Note that the feeder device used in this embodiment has a point that the moving direction of the suction member is substantially horizontal, a point that the carton sheet is warped,
4 and 5 except that the position where the suction cup is pressed against the sheet surface is near the lower edge of the sheet surface, and that the carton sheet supply unit is arranged to be inclined with respect to the direction of movement of the suction member. Since it is the same as the feeder device,
The same parts are denoted by the same reference numerals as in FIGS. 4 and 5, and description of overlapping parts is omitted.

In this feeder device, the protruding portion 11 of the cam groove 8 is disposed so as to be directed in the horizontal direction, whereby the direction of movement of the suction member 4 is made substantially horizontal.
In addition, the carton sheet 13 is likely to be warped particularly in a highly humid environment, and this warp affects the later-described tilt angle of the carton sheet supply unit 12. Regarding the cause of the warpage, referring to FIG. 3, the surface on the back side of the painted surface of the carton sheet 13 is more likely to absorb moisture than the painted surface, and the painted surface side is concave due to expansion of the sheet back surface due to the moisture. It is considered that warping occurs. The sheet 13 is supplied to the carton sheet supply section 12 with the painted surface facing forward, and therefore, the sheet pressing surface of the suction cup 6 is concave.

Next, the position of the suction cup 6 pressed against the sheet 13 and the inclination angle of the carton sheet supply unit 12 with respect to the direction of movement of the suction member 4 will be described. As shown in FIG. 1, the position of the suction cup 6 pressed against the frontmost surface of the sheet 13 when the suction member 4 moves forward is near the lower edge of the sheet 13 surface. The carton sheet supply unit 12 is arranged so as to be inclined with respect to the direction in which the suction member 4 moves forward and backward so that the upper part 6a of the tip edge of the cup 6 in the circumferential direction contacts the sheet 3 surface before the lower part 6b.

As described above, by pressing the suction cup 6 against the sheet 13 near the lower edge of the sheet 13, the center of the suction cup 6 cannot be pressed by the suction cup 6. The second sheet 13 does not come into close contact with the second sheet 13, whereby the withdrawal resistance of the sheet 13 when the suction member 4 is retracted and the foremost sheet 13 is removed can be reduced. Here, when the suction cup 6 is pressed against the sheet 13 surface, the lower portion 6b of the suction cup 6 is the sheet 1 when the sheet width is L.
3 is preferably arranged in the range of 0 to 0.3 L from the lower edge of the suction cup 6.
b drops off from the lower edge of the sheet 13 and good sheet suction cannot be performed. On the other hand, if the sheet b exceeds 0.3 L, the frontmost sheet 13 and the second sheet 13 are separated when the suction cup 6 sucks the sheet. Since the sheet 13 is likely to be in a close contact state, the sheet 13 may cause an increase in take-out resistance.

When the suction member 4 moves forward, the suction cup 6
Since the carton sheet supply unit 12 is arranged so as to be inclined with respect to the advancing and retreating direction of the suction member 4 so that the upper part 6a in the circumferential direction of the leading edge contacts the sheet surface before the lower part 6b.
At the time when the suction cup 6 is pressed against the sheet 13, the upper portion 6a has a larger amount of elastic deformation in the axial direction than the lower portion 6b.

This means that when the suction member 4 is retracted, the lower portion 6b of the suction cup 6 returns elastically faster than the upper portion 6b, and the second sheet 13 returns faster than the upper portion 6a.
From the front sheet 13 and the second sheet 13, whereby a gap is formed at the lower side and air enters from the gap (see FIG. 2), and Combined with the decrease in resistance, the sheet 13 can be taken out reliably,
As in the related art, it is possible to satisfactorily prevent the second and subsequent sheets 13 from shifting after the frontmost sheet 13 is taken out. As a result, it is possible to greatly reduce the rate of occurrence of defective take-out of the sheet 13 of the carton sheet supply unit 12, and to improve the operation efficiency of the feeder device.

Here, in this embodiment, the carton is set so that the angle θ between the frontmost sheet surface 13 and the tip end surface of the suction cup 6 is in the range of 20 to 30 °, preferably 22 to 25 °. The sheet supply unit 12 is arranged to be inclined with respect to the moving direction of the suction member 4. Also, the seat surface 13
The upper surface 6a of the suction cup 6 comes into contact with the sheet surface 13 first, and the frontmost sheet 13 is deformed, and the second sheet 13 is formed.

When the angle θ is less than 20 °, the difference in contact force between the upper portion 6a and the lower portion 6b of the suction cup 6 on the frontmost sheet 13 is small. 13 is less deformed, and a gap with the second sheet 13 hardly occurs. On the other hand, if the angle exceeds 30 °, the lower portion 6b of the suction cup 6 may not reach the sheet surface when the sheet surface is pressed, and the suction may not be performed sufficiently.

[0018]

As is apparent from the above description, according to the present invention, the rate of occurrence of defective sheet removal from the carton sheet supply unit can be greatly reduced, and the operation efficiency of the feeder device can be improved. The effect that it can be achieved is obtained.

[Brief description of the drawings]

FIG. 1 is an explanatory schematic diagram for explaining a method of taking out a carton sheet which is an example of an embodiment of the present invention.

FIG. 2 is an explanatory schematic diagram for explaining a state in which the suction member is retracted.

FIG. 3 is an explanatory diagram for explaining a warp of a carton sheet;

FIG. 4 is an explanatory side view for explaining the feeder device.

FIG. 5 is an enlarged perspective view of a main part of the feeder device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Rotation drive body 4 ... Suction member 6 ... Suction cup 12 ... Carton sheet supply part 13 ... Carton sheet

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tetsuya Watanabe 1 Arai Uemae Hata, Amiya-gun, Motomiya-cho, Fukushima Prefecture Inside the Fukushima Plant of Asahi Breweries, Ltd. Maebata 1 F-term in Asahi Breweries, Ltd. Fukushima Factory (reference) 3E030 AA02 BA04 BB02 BB05 GA04 3F343 FA06 FB13 FC17 GA02 GB02 GC01 GD06 JB02 KB04

Claims (2)

[Claims] 1. A rotary drive body having a rotation axis oriented substantially in a horizontal direction, and supported by the rotary drive body so as to protrude radially outward of the rotary drive body. Having an elastically deformable suction cup, and facing the frontmost sheet when the suction cup reaches a rotation angle position facing the frontmost sheet of the plurality of carton sheets supplied to the carton sheet supply unit. Using a feeder device having a suction member configured to move forward and backward, the suction cup is pressed against the frontmost sheet surface when the suction member advances, and the sheet is sucked and held in this state. In a carton sheet taking-out method in which sheets are taken out one by one from the carton sheet supply unit by retreating a member, the suction cap at the time when the adsorbing member moves forward is provided. The position where the cup is pressed against the sheet surface is near the lower edge of the sheet surface, and further, the upper edge of the distal end edge of the suction cup contacts the sheet surface earlier than the lower portion during the advance. Wherein the carton sheet supply unit is arranged to be inclined with respect to the moving direction of the suction member. 2. The carton sheet supply unit is tilted so that an angle formed between the frontmost sheet surface and a cup tip surface of the suction cup is in a range of 20 to 30 °. How to take out the carton sheet described.