JPH09175665A - Take-out device of corrugated board sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To take out only corrugated board sheet at the lowest layer by a simple structure. SOLUTION: In a magazine hopper 33 of a take-out device 31 provided with the magazine hopper 33 on which corrugated board sheet 1 is loaded and a takeout mechanism 55 which is suctioned on corrugated board sheet 1A at the lowest layer and pull s it out downward, a roller 63 which supports a peripheral fringe part on one end 1a side of a specific sheet 1E which is above by a predetermined amount from the corrugated board sheet 1A at the lowest layer from below, separates one end 1a side of the corrugated board sheet 1 into up and down parts with the specific sheet 1 as a boundary, pulls out the corrugated board sheet 1A at the lowest layer, and in which the peripheral fringe part on one end 1a side is removed in a condition in which the other end 1b of the specific sheet 1E moves downward and one end la side moves obliquely and downward for the direction of loading of the corrugated board sheet 1 is provided. Consequently, when the corrugated board sheet 1A at the lowest layer is pulled out, load equal to that of corrugated board sheet 1B, 1C, 1D which are more downward than the specific sheet 1E is merely added to the corrugated board sheet 1A at the lowest layer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cardboard sheet take-out device for drawing cardboard sheets loaded in a magazine hopper downward from the lowermost layer.

[0002]

2. Description of the Related Art FIG. 7 shows an example of a conventional cardboard sheet takeout device of this type (see Japanese Patent Laid-Open No. 7-215501).

As shown in the figure, this take-out device supports a peripheral portion of the lowermost corrugated cardboard sheet 1 by hooks 5, 7, and 9, and a magazine hopper 3 above which the corrugated cardboard sheet 1 is inclined and stacked. The magazine hopper 3 is provided with a take-out mechanism 10 for adsorbing one of the lowermost layers of the corrugated cardboard sheets 1 and pulling it downward. Take-out mechanism 1
0 is adsorbed on the lower surface of the lowermost corrugated cardboard sheet 1 on one end side and draws this downward, and on the lower surface of the corrugated cardboard sheet 1 drawn out by the subvacuum cup 11, which is pulled downward. Support shafts 15 and 17 for supporting the vacuum cup 13 and the sub-vacuum cup 11 and the main vacuum cup 13, respectively.
And drive shafts 19 and 19 for driving the support shafts 15 and 17, respectively.
a, 21, 21a.

When the corrugated board sheet 1 is taken out, first, the sub-vacuum cup 11 is pressed against the lower surface of the corrugated board sheet 1 in the lowermost layer and sucked, and the sub-vacuum cup 11 is moved downward in such a state. As a result, one end side of the lowermost corrugated cardboard sheet 1 is disengaged from the hook 7 supporting the corrugated cardboard sheet 1 and pulled out downward. Next, after stopping suction of the sub-vacuum cup 11 and moving the sub-vacuum cup further downward, the main vacuum cup 13 is pressed against the lower surface of the drawn cardboard sheet 1 to suck, and the main vacuum cup 13 is moved downward in such a state. To move. As a result, only the lowest corrugated cardboard sheet 1 that has been pulled out is taken out. Then, the main vacuum cup 13 is moved to the transport rail 25 and the suction is stopped, whereby the cardboard sheet 1
Are placed on the transport rail 25.

That is, according to such a take-out device, the corrugated cardboard sheet 1 before being pulled out is replaced with the sub-vacuum cup 11.
Since the cardboard sheet 1 can be pulled out in advance, a large load is applied to the corrugated cardboard sheet 1, and a large load is applied to the corrugated cardboard sheet 1 in the lowermost layer, so that the corrugated cardboard sheet 1 in the lowermost layer is in close contact with the corrugated cardboard sheet 1 immediately above. Even in the case of doing so, it is possible to satisfactorily take out only the lowermost corrugated cardboard sheet 1 without causing the two corrugated cardboard sheets 1 to be taken out or being unable to be taken out.

Another example of the take-out device, that is, a corrugated sheet is taken out by using a plurality of vacuum cups provided on a simpler and integral support shaft (link mechanism) regardless of the complicated structure as described above. The device expands the swing stroke of the link that displaces the vacuum cup upward to ensure that the lowermost corrugated cardboard sheet is taken out within a shorter suction time than before, and a certain angle from the surface containing the lowermost corrugated cardboard ( The vacuum cup extends upwards (about 3 ° to 5 °), and this overstroke lifts the entire stacked corrugated cardboard sheets, so that the vacuum cup is surely adsorbed to the lowermost corrugated cardboard sheet in a short time. It is configured to be possible.

[0007]

However, such a conventional take-out device has the following problems. That is, in the device as described above at the beginning, in addition to the main vacuum cup 13, the sub-vacuum cup 11, its support shaft 15 and drive shafts 19, 19 are provided.
Since a must be separately provided, the structure is complicated.

Further, the corrugated cardboard sheet 1 after being pulled out by the sub-vacuum cup 11 is in an unstable state in which a uniform inclination angle cannot be obtained, and the main vacuum cup 1
There was a possibility that the inclinations of the two did not match when pressing 3. For this reason, the main vacuum cup 13 becomes a one-sided contact, and a gap is generated between the corrugated cardboard sheet 1 and the main vacuum cup 13, so that a sufficient suction force cannot be obtained, and there is a possibility that the takeout becomes uncertain.

The above inconvenience can be solved by detecting the inclination angle of the corrugated cardboard sheet 1 in the drawn-out state and changing the pressing angle of the main vacuum cup 13 according to the detected angle (Japanese Patent Laid-Open No. 7- 215501
However, there is a problem that such a method further complicates the structure.

Further, in the taking-out device described below, that is, the device for taking out corrugated board sheets using a plurality of vacuum cups provided on a single and integral support shaft, the corrugated board sheets stacked above are taken out. If the total weight is heavy, it will take a lot of force to drive the link, and even if the link acts on the lowermost corrugated cardboard sheet, it cannot be lifted,
There is a risk that the overstroke will be insufficient and it will not be possible to obtain sufficient suction force for the vacuum cup. For this reason, a large amount of corrugated cardboard sheets cannot be taken, and as a result, artificial corrugated cardboard sheets must be frequently replenished, which complicates the work.

The present invention has been made in order to solve such a conventional problem, and its purpose is to make it possible to reliably take out only the corrugated cardboard sheet of the lowermost layer with a simple structure. Moreover, it is another object of the present invention to provide a cardboard sheet take-out device which can reduce the number of times the cardboard sheet is supplied.

[0012]

According to a first aspect of the present invention, there is provided a magazine hopper for supporting a peripheral portion of a corrugated cardboard sheet of the lowermost layer and stacking corrugated cardboard sheets above the corrugated sheet, and a lower surface of the corrugated sheet of the lowermost layer. In a device for taking out a corrugated board sheet having a take-out mechanism for adsorbing to one of the lowermost layers and pulling out one of the lowermost layers downward, one end side of a specific sheet located a predetermined amount above the lowermost layer among the stacked corrugated cardboard sheets. Supporting the peripheral portion from below, one end side of the stacked corrugated cardboard sheets is vertically separated with the specific sheet as a boundary,
And, in a state where the lowermost corrugated cardboard sheet is pulled out, the other end side of the specific sheet moves downward, and the peripheral edge portion of the one end side moves obliquely downward with respect to the stacking direction of the corrugated cardboard sheet, The magazine hopper is provided with an intermediate support portion from which a peripheral edge portion on one end side is detached.

According to the first aspect of the present invention, when the cardboard sheet is taken out, one of the lowermost layers of the cardboard sheets stacked in the magazine hopper is sucked by the take-out mechanism and pulled downward. At this time, the specific sheet located a predetermined amount above the lowermost layer is in a state where the peripheral edge portion on one end side thereof is supported by the intermediate support portion and the peripheral edge portion on the other end side is immediately supported by the corrugated cardboard sheet below, Since one end side of the loaded cardboard sheets is separated vertically with a specific sheet as a boundary, even when the cardboard sheet loading amount is large,
The lowermost corrugated cardboard sheet only needs to be loaded with a load that is approximately equal to the weight of the corrugated cardboard sheets below the specific sheet in the total loading amount. Therefore, even when there is a large amount of cardboard sheets loaded, it becomes difficult for the corrugated cardboard sheet in the lowermost layer to be in close contact with the cardboard sheet immediately above it, and it is possible to reliably prevent the two cardboard sheets from being taken out or unable to be taken out. Therefore, only the lowermost corrugated cardboard sheet can be taken out satisfactorily.

After the lowermost corrugated board sheet is pulled out, the corrugated board sheet immediately below the specific sheet moves downward by one sheet, and the peripheral edge portion on the other end side of the specific sheet also moves downward by one sheet, The peripheral edge portion on one end side of the specific sheet moves obliquely downward with respect to the stacking direction of the corrugated board sheets and comes off the intermediate support portion. As a result, the specific sheet detached from the intermediate supporting portion falls and overlaps the corrugated cardboard sheet immediately below, and the peripheral edge portion on one end side of the corrugated cardboard sheet immediately above is supported by the intermediate supporting portion to become the next specific sheet. .
That is, every time the lowermost corrugated cardboard sheet is pulled out, the specific sheet is sequentially supplied from above, and this specific sheet sequentially drops at the time of the next withdrawal and moves to the lowermost layer, so that the lowermost corrugated cardboard sheet is continuous. Can be taken out.

A second aspect of the present invention is the cardboard sheet take-out device according to the first aspect, wherein the intermediate support portion abuts on and supports the peripheral edge portion on one end side of the specific sheet. At the same time, it is characterized in that it has a peripheral surface that can rotate together with the movement of the peripheral edge portion on the one end side in a diagonally downward direction.

According to the invention described in claim 2, in addition to the function of the invention described in claim 1, when the lowermost corrugated cardboard sheet is pulled out and the peripheral edge portion on one end side of the specific sheet moves obliquely downward. Since the peripheral surface that abuts and supports one end side of the specific sheet rotates together with the movement of the one end side, the specific sheet can be easily detached from the intermediate support portion.

According to a third aspect of the present invention, there is provided the corrugated board sheet take-out device according to the second aspect, wherein the intermediate support portion has a drum-shaped roller in which an intermediate portion of the peripheral surface projects in a substantially arc shape. It is characterized by being.

According to the invention described in claim 3, in addition to the operation of the invention described in claim 2, if the roller is set so that the specific sheet at the normal position and the intermediate portion of the roller come into contact with each other, Even when the specific sheet deviates from the regular position in the substantially same plane in an oblique direction, the specific sheet and a part of the arc-shaped peripheral surface of the roller are in contact with each other in substantially the same manner as in the regular position. In contact with each other, the peripheral surface of the roller is brought into a state in which the peripheral surface of the roller can favorably co-rotate with the movement of the one end side of the specific sheet. Therefore, even if the specific sheet deviates from the regular position, the specific sheet can be easily removed from the intermediate support portion.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a schematic perspective view showing a packing system using a corrugated board sheet take-out device according to an embodiment of the present invention, FIG. 2 is a side view of the take-out device shown in FIG. 1, and FIG. 3 is an intermediate support unit. FIG. 4 is a plan view, FIG. 4 is a side view of the intermediate support unit, and FIG. 5 is an enlarged side view showing a use state of the takeout device of FIG.

As shown in FIG. 1, this packaging system is
Cylinders 8 for arranging a predetermined number of products 81 supplied in a line by product supply conveyor 83 in a substantially perpendicular direction.
5 and when the number of times of delivery reaches a predetermined number (when they are lined up in a predetermined row), the product is supplied onto the inner surface of the corrugated cardboard sheet 1 previously placed on the packing and conveying rail 89 by the product supply cylinder 87. 81 are supplied collectively. The corrugated cardboard sheet 1 on which the product 81 is placed on the inner surface is intermittently sent by the packing and carrying rail 89, and is folded and bonded.

As shown in FIG. 2, the corrugated cardboard sheet take-out device 31 sequentially supplies the corrugated board sheets 1 onto the packing / conveying rail 89, and supports the peripheral portion of the corrugated board sheet 1 in the lowermost layer and above it. It is provided with a magazine hopper 33 on which the sheets 1 are stacked in an inclined manner, and a take-out mechanism 55 for adsorbing and pulling down one of the lowermost layers 1A of the corrugated board sheets 1 stacked on the magazine hopper 33.

The magazine hopper 33 includes an upper guide 3
5, the lower guide 37, and the side guides 39 on both sides (only one side is shown), the upper hook 41, the lower hook 43, and the side hooks 45 on both sides (only one side is shown), and the intermediate support unit 61. And are provided. These guides 35, 3
The reference numerals 7 and 39 are supported by the base frame portion 48 fixed to be inclined and correspond to the four sides of the corrugated cardboard sheet 1 having a substantially rectangular shape in plan view, and regulate the inclined stacking positions of the corrugated cardboard sheet 1 from four directions. The hooks 41, 43, 45 have guides 35, 3 respectively.
It projects inward from the lower ends of 7, 39 and supports the peripheral portion of the lowermost corrugated cardboard sheet 1A.

The take-out mechanism 55 includes a vacuum cup 4
7, a cup support portion 49, and links 51 and 53 are provided. The vacuum cup 47 pulls out the lowermost corrugated board sheet 1A of the corrugated board sheets 1 stacked in the magazine hopper 31, so that the vacuum cup 47 is attracted to the lower surface by the suction force of air. The vacuum cup 47 is fixed to a cup supporting portion 49, and the cup supporting portion 49 is rotatably supported by links 51 and 53 driven by a driving portion (not shown).

At the top dead center of the swing stroke provided by the links 51 and 53, the vacuum cup 47 is located above the lowermost layer 1A of the corrugated cardboard sheet 1 (the surface including the lowermost corrugated cardboard sheet 1A). From 3 ° to 5 °).

The intermediate support unit 61 comprises a roller 63 as an intermediate support portion, a roller support body 65 for rotatably supporting the roller 63, and a bracket 79 for attaching the roller support body 65 to the base frame portion 48. There is. As shown in FIGS. 3 and 4, the roller support body 65 is formed in a rectangular plate shape, and is provided at two positions with a roller shaft support portion 67 protruding from both ends in the width direction on one end side and having shaft support holes 71 formed therethrough. And the bracket connecting portion 69 on the other end side in which the bolt insertion hole 75 is formed.

The roller 63 is formed in a drum shape in which an intermediate portion of the peripheral surface 63a projects in a substantially arc shape. Roller 63
A shaft insertion hole 70 is formed in the roller 6 by a rotary shaft 73 that penetrates the shaft insertion hole 70 and the shaft support hole 71.
3 is rotatably supported.

The bolt insertion hole 75 is formed in the shape of an elongated hole extending substantially at right angles to the rotary shaft 73.
The roller support body 65 is fastened and fixed to the bracket 79 by the bolts 77 that pass through 5. As a result, the front-back position of the roller 63 with respect to the bracket 79 is adjustable.

Although not particularly shown, the bracket 79 is attached so that its vertical position with respect to the base frame portion 48 (see FIG. 2) can be adjusted.

As shown in FIG. 2, the intermediate support unit 61.
Is provided on the upper end 1a side of the corrugated cardboard sheets 1 stacked in an inclined manner. The upper and lower positions of the roller 63 with respect to the base frame portion 48 are such that the peripheral surface 63a of the roller 63 is located above the lowermost corrugated cardboard sheet 1A of the stacked corrugated cardboard sheets 1 by a predetermined amount (for example, the fifth corrugated sheet counted from the lowermost layer). The specific sheet 1E is in contact with the peripheral portion of the one end 1a side (upper side of the slope) of the positioned specific sheet 1E to support it from below, and the one end 1a side of the corrugated cardboard sheets 1 stacked with the specific sheet 1E as a boundary is vertically separated. A space 67 having a substantially triangular shape in a side view is formed, and the link 5 is formed.
Even when 1,53 reaches the top dead center and the vacuum cup 47 pushes the lowermost corrugated cardboard sheet 1A upward,
The height is set such that the space 67 is not crushed and the separated state on the one end 1a side of the corrugated board sheet 1 is maintained. Further, the front and rear positions of the roller 63 with respect to the bracket 79 are
The bottom corrugated cardboard sheet 1A is pulled out, and the specific sheet 1
When the other end 1b side (inclined lower side) of E moves downward by one sheet, and the peripheral edge portion on the one end 1a side moves obliquely downward with respect to the stacking direction of the corrugated cardboard sheets 1, the roller 63 ends the one end 1a. It is set at a position where it rotates together with the movement of the peripheral edge portion on the side, and the peripheral edge portion on the one end 1a side is detached from the roller 63 and can be dropped. Further, the roller 63, as shown in FIG.
When the specific sheet 1E is in the regular position (indicated by the chain double-dashed line in FIG. 3), the intermediate portion of the peripheral surface 63a is set to a position in contact with the specific sheet 1E.

Next, the operation will be described.

From the magazine hopper 33 to the cardboard sheet 1
When taking out, the vacuum cup 47 is pressed against the lower surface of the lowermost corrugated cardboard sheet 1A, and further lifted several times to the upper dead center above the overstroke, so that the vacuum cup 47 is brought into close contact with the lowermost corrugated cardboard sheet 1A and sucked. Then, in such a state, the links 51 and 53 are rotated downward to move the vacuum cup 47 downward, and the lowermost corrugated cardboard sheet 1A is pulled out. At this time, since the lowermost corrugated cardboard sheet 1A is positioned by the hooks 41, 43, and 45, the vacuum cup 47 serves as a single contact and the corrugated cardboard sheet 1 and the vacuum cup 4
There is no gap between the and 7, and a sufficient suction force can be reliably obtained. Then, by moving the vacuum cup 47 to the packing / transporting rail 89 and then stopping suction, the corrugated board sheet 1 is placed on the packing / transporting rail 89. In the moving path of the corrugated board sheet 1 from the magazine hopper 33 to the packing / conveying rail 89, when the corrugated board sheet 1 is moved, one end 1a side and the other end 1b side of the corrugated board sheet 1 are brought into contact and bent. The corrugated cardboard sheet 1 provided with the folding members 91 and 93 and placed on the packing and conveying rail 89 is in a state in which both the one end 1a side and the other end 1b side are bent.

Here, when the lowermost corrugated cardboard sheet 1A is pulled out, the peripheral edge portion on the one end 1a side of the specific sheet 1E is supported by the roller 63, and the peripheral edge portion on the other end 1b side is immediately below. Since it is in a state of being supported by 1D and the one end 1a side of the stacked corrugated cardboard sheets 1 is vertically separated with the specific sheet 1E as a boundary, the lowermost corrugated cardboard sheet is irrespective of the loading amount of the corrugated cardboard sheets 1. It is sufficient to apply a load to 1A that is substantially equal to the weight of the three corrugated cardboard sheets 1B, 1C, and 1D below the specific sheet 1E. Therefore, even when the loading amount of the corrugated board sheet 1 is large, it becomes difficult for the corrugated board sheet 1A of the lowermost layer to be in close contact with the corrugated board sheet 1B immediately above it, and it is possible to reliably take out two corrugated board sheets 1 or cannot take them out. It is possible to prevent the corrugated sheet 1A of the lowermost layer from being satisfactorily taken out.

When the vacuum cup 47 reaching the upper dead point in this state starts to descend, the suction force of the vacuum cup 47 directly acts on the lowermost corrugated cardboard sheet 1A and the downward movement of the corrugated sheet 1A is prevented. It will be done promptly.
On the other hand, the corrugated cardboard sheet 1 above the corrugated cardboard sheet 1 is relatively slowly moved down to the position where it comes into contact with the hooks 41, 43, and 45, because a frictional force acts between the upper side guide 35 and the side guide 39. With this effect, only the lowermost corrugated board sheet 1 can be taken out satisfactorily.

After the lowermost corrugated cardboard sheet 1A is pulled out, as shown in FIG. 5, the corrugated cardboard sheet 1D immediately below the specific sheet 1E moves downward by one sheet and the other end 1b side of the specific sheet 1E. Also moves downward by one sheet, and the specific sheet 1
The peripheral portion of the end E on the side of the one end 1 a moves obliquely downward with respect to the stacking direction of the corrugated board sheets 1 and comes off the roller 63.
Then, the specific sheet 1E separated from the roller 63 falls and overlaps the corrugated cardboard sheet 1D immediately below (indicated by a chain double-dashed line in FIG. 5), and the peripheral edge portion on the one end 1a side of the corrugated cardboard sheet 1F immediately above the specific sheet 1E. Is supported by the roller 63 and becomes the next specific sheet. That is, each time the lowermost corrugated cardboard sheet 1 (1A) is pulled out, the next specific sheet 1 (1F) is sequentially supplied from above, and the specific sheet 1 (1F) is sequentially dropped at the time of the next pulling and the Since it moves to the lower layer, the corrugated cardboard sheet 1 (1
A) can be taken out continuously.

Further, even during the upward displacement for the overstroke, the amount of the corrugated cardboard sheet 1 acting on the take-out mechanism 55 is limited to the amount corresponding to the lower side than the specific sheet 1E, and only one sheet is provided. The operation of taking out is surely guaranteed.

When the lowermost corrugated cardboard sheet 1E is pulled out and the peripheral edge of the specific sheet 1E on the one end 1a side is moved obliquely downward, the roller 63 (surrounding the one end 1a side of the specific sheet 1E is supported. Since the surface 63a rotates together with the movement of the one end 1a side, the one end 1a side of the specific sheet 1E can be easily separated from the roller 63.

Further, the roller 63 has a drum shape in which the middle portion of the peripheral surface 63a projects in a substantially arcuate shape, and the position of the roller 63 is set so that the specific sheet 1E in the normal position and the middle portion of the roller 63 come into contact with each other. Since the setting is made, even when the specific sheet 1E is deviated from the normal position in the substantially same plane in an oblique direction (shown by a broken line in FIG. 3), the specific sheet 1E and the arc-shaped peripheral surface 63a of the roller 63 are not changed. When a part of the roller 6 is in the normal position (indicated by the chain double-dashed line in FIG. 3), the roller 6 comes into contact with the roller 6,
The peripheral surface 63a of No. 3 is in a state in which it can co-rotate well with the movement of the specific sheet 1E toward the one end 1a side. Therefore, even if the specific sheet 1E deviates from the regular position, the one end 1a side of the specific sheet 1E can be easily removed from the roller 63.

When the thickness, size, rigidity or the like of the corrugated board sheet 1 is changed, it is possible to cope with various kinds of corrugated board sheets 1 by adjusting the setting position of the roller 63. For example, in the case of a corrugated cardboard sheet 1 which has low rigidity and is easily bent, the roller 63 is
6 is set closer to the corrugated board sheet 1 side,
As shown in, the end 1a side of the specific sheet 1E can be supported as in the case of FIG.

As described above, according to the present embodiment, it is possible to reduce the number of times of refilling the corrugated board sheet 1 with a simple structure in which the magazine hopper 33 is provided with the rollers 63 without the special structure of the take-out mechanism 55. Even when the loading amount is increased, only the lowermost corrugated cardboard sheet 1A can be continuously and reliably taken out.

Further, since the roller 63 rotates together with the movement of the one end 1a side of the specific sheet 1E, the one end 1a side of the specific sheet 1E can be easily removed from the roller 63, and the specific sheet 1E is caught. Cardboard sheet 1
It is possible to reliably prevent the inability to take out.

Further, even when the specific sheet 1E is displaced from the normal position, the roller 63 is moved to the end 1 of the specific sheet 1E.
Since the a side can be easily removed, the specific sheet 1E
It is possible to more reliably prevent the cardboard sheet 1 from being unable to be taken out due to the catching of.

Although the roller 63 is provided on the upper side of the inclination of the corrugated board sheet 1 in the present embodiment, it may be provided on the lower side of the inclination (the other end 1b side).

[0044]

As described above, according to the first aspect of the present invention, the cardboard sheet of the corrugated sheet is provided with the simple structure in which the magazine hopper is provided with the intermediate supporting portion without the special structure of the take-out mechanism. Even when the loading amount is increased to reduce the number of times of replenishment, only the lowermost corrugated board sheet can be continuously and reliably taken out.

According to the second aspect of the present invention, the first aspect is provided.
In addition to the effect of the invention described in (1), since the peripheral surface of the intermediate support portion rotates together with the movement of the one end side of the specific sheet, the one end side of the specific sheet can be easily detached from the intermediate support portion. It is possible to reliably prevent the cardboard sheet from being unable to be taken out due to the sheet being caught.

According to the invention of claim 3, claim 2
In addition to the effect of the invention described in (1), even if the specific sheet is displaced from the regular position, it is possible to easily remove one end side of the specific sheet from the roller, so that the corrugated cardboard sheet cannot be removed due to the specific sheet being caught. It can be surely prevented.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a packaging system using a cardboard sheet take-out device according to an embodiment of the present invention.

FIG. 2 is a side view of the take-out device of FIG.

FIG. 3 is a plan view of an intermediate support unit.

FIG. 4 is a side view of the intermediate support unit.

5 is an enlarged side view showing a use state of the take-out device of FIG. 2. FIG.

FIG. 6 is a side view of a take-out device showing a case where the present embodiment is applied to a corrugated board sheet having low rigidity.

FIG. 7 is a side view showing a conventional example.

[Explanation of symbols]

 1 Corrugated Cardboard Sheet 1A Lowermost Corrugated Cardboard Sheet 1E Specific Sheet 1a One end of corrugated cardboard sheet 1b Other end of corrugated cardboard sheet 31 Cardboard sheet take-out device 33 Magazine hopper 63 Roller (intermediate support part) 63a Roller surface 55 Take-out mechanism

Claims (3)

[Claims] 1. A magazine hopper supporting a peripheral portion of a lowermost corrugated cardboard sheet and stacking corrugated cardboard sheets on the upper portion thereof, and adsorbing to a lower surface of the lowermost corrugated cardboard sheet and pulling one of the lowermost corrugated sheets downward. In a cardboard sheet take-out device including a take-out take-out mechanism, a peripheral edge portion on one end side of a specific sheet located a predetermined amount above the lowermost layer of the loaded cardboard sheets is supported from below, and the specific sheet is At the boundary, one end side of the loaded corrugated cardboard sheets is vertically separated, and the corrugated cardboard sheet of the lowermost layer is pulled out, the other end side of the specific sheet moves downward, and the peripheral edge portion of the one end side is The magazine hopper is provided with an intermediate support part for removing the peripheral edge portion on the one end side in a state where the cardboard sheet is moved obliquely downward with respect to the stacking direction. Door of the removal device. 2. The corrugated cardboard sheet take-out device according to claim 1, wherein the intermediate support portion abuts against and supports the peripheral edge portion on one end side of the specific sheet, and the peripheral edge portion on the one end side. A corrugated cardboard sheet take-out device having a peripheral surface that can be rotated together with the downward movement of the section. 3. The cardboard sheet take-out device according to claim 2, wherein the intermediate support portion is a drum-shaped roller in which an intermediate portion of the peripheral surface projects in a substantially arc shape. Cardboard sheet take-out device.