JPH06336213A - Preventive device of article from falling down on charging article - Google Patents

Abstract

PURPOSE:To prevent an article from falling down at the folding part of flap of a blank sheet and smoothly charge the article into the blank sheet, by pressing the side walls of blank sheet so as not to rise up when transferring articles to the blank sheet transferred with U-shaped form. CONSTITUTION:A container 2 to be charged pushed out by a pusher 1 is transferred to a blank sheet 4 through a folding part 3 or flap. The front and rear walls 10, 12 of the blank sheet 4 are bent upward against the bottom to form a U-shape. It is held by a clamp mechanism 19. The clamp mechanism is provided with a fixed clamper 25 and a movable clamper 27 fitted to a pair of endless chains 24, 26 respectively. In this case, the upper end of rear wall 10 in the blank sheet 4 is pressed by a pressing device 31 constituted of an air cylinder or others. In this way, the blank sheet 4 is prevented from rising up to avoid falling down of the container 2 at the folding part 3 of the flap. The upper end of the front wall 12 may be pressed by a pressing member 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an article fall prevention device for filling articles in an article boxing device, and is a U-shaped blank sheet that becomes a box when the articles transferred at high speed are filled in the box. The article supplied above is caught in the flap fold portion so as not to fall.

[0002]

2. Description of the Related Art As a prior art, in a side flap folding device of a caser, a movable guide, which is operated in synchronization with a box conveyor, is provided at the rear end of the fixed guide in the conveying direction so as to reciprocate in the conveying direction. During transportation of the box member, the movable guide folds the front side flap rearward in the transportation direction,
The movable guide is advanced in synchronization with the box member while maintaining the folded state of the front side flap, and at the same time, the rear side flap is superposed on the front side flap by the flap folding member to bend the movable side guide. There is an apparatus in which the rear side flap is supported by a fixed guide by pulling out the front side from between the front side flap and the rear side flap (see Japanese Utility Model Publication No. 5-9295).

[0003]

However, the prior art shown above supplies grouped containers on a U-shaped blank sheet, and for design or other reasons the rear side flaps. Can be folded so that it is outside the front side flap,
It is not possible to prevent the container from being caught in the flap fold of the blank sheet on the container filling side. Further, when the grouped containers are forcibly supplied by the supporting member and the pushing member, the flap portion of the blank sheet may be damaged or broken. In view of these circumstances, the present invention prevents the bottom portion of a U-shaped blank sheet from rising by pressing the side wall formed by the U-shaped blank sheet with a pressing device, and at the same time,
It is an object of the present invention to provide an article fall prevention device at the time of filling an article for preventing the article from falling.

[0004]

In order to solve the above-mentioned problems, the present invention provides a box conveyor that conveys blank sheets in a U shape, an article conveyor that conveys articles, and an article on the article conveyor. In an article boxing device having an extruding member that pushes out onto a blank sheet, the article boxing device is provided so as to be able to move up and down on a box conveyor, and floats with respect to a side wall formed by the blank sheet when the article is transferred onto the blank sheet. A technical means called an article fall prevention device at the time of filling the article, which is provided with a pressing device that acts to hold down the article, is adopted.

[0005]

The present invention adopts U as a result of adopting the above technical means.
When the article is filled and placed on the U-shaped blank sheet, the lid formed of the U-shaped blank sheet is not connected to the flap fold of the U-shaped blank sheet so as not to be caught in the flap fold. This is designed to prevent the entire blank sheet, especially the flap folds, from rising from the upper part of the short standing side wall by an elevating and lowering device composed of an air cylinder or the like.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. First, referring to FIG. 4, the phenomenon that actually occurs will be described. The pushing member 1 pushes the container 2, which is a stored article, in the direction of arrow A. At this time, the container may be caught at the flap fold 3 of the U-shaped blank sheet 4 and fall over. This is a U-shaped blank sheet 4
In addition to the fact that the container is light, since the flap fold 3 is provided, the bottom corner of the container is caught and falls. The present invention has been made to eliminate such a phenomenon. Here, the details will be described based on FIGS. 1 to 3. First, in FIG. 1, the containers 2 grouped in horizontal 5 rows and vertical 2 rows are transported by the article transport conveyor 5 while being sandwiched by a pair of guide members 6 at the front and the back thereof, and also on one side of the article transport conveyor 5. Provided container extrusion device 9
The pushing member 1 pushes the guide member 6 out of the pair of guide members 6 in a direction orthogonal to the conveying direction. On the side where the container 2 is extruded, a delivery conveyor 7 is disposed adjacent to the article transport conveyor 5, and a box transport conveyor 8 is disposed adjacent to the delivery conveyor 7.
Each of the conveyors 7 and 8 travels at the same speed as the guide member 6, and the delivery conveyor 7 includes a pair of guide members 6 that guide both sides of the container 2 extruded from inside the guide member 6. On the other hand, the box conveyor 8
Is a blank sheet 4 which is a box member for accommodating the container 2.
Therefore, the container 2 extruded from between the guide members 6 by the extruding member 1 is accommodated in the blank sheet 4 which is a box member via the guide member 6. As shown in FIG. 2, the blank sheet 4 which is a box member conveyed by the box conveyor 8 has a rear side wall 10, a bottom portion 11, a front side wall 12, a lid portion 13 and a rear side wall which are sequentially formed in a row. Including the plug-in section 14,
Rear side flaps 1 formed on both sides of the rear side wall 10
5, front side flaps 16 formed on both sides of the front side wall 12, lower flaps 17 formed on both sides of the bottom 11, and upper flaps 18 formed on both sides of the lid 13. The blank sheet 4, which is the box member, is formed in a U shape by bending the front side wall 12 and the rear side wall 10 upward with respect to the bottom portion 11, and is provided on the box transfer conveyor 8 at predetermined intervals. It is gripped by a clamp mechanism 19 (see FIG. 3), which will be described in detail later, and is transported with the front side wall 12 as the front side in the transport direction. By the way, a supply device 20 for the blank sheet 4 of the box member is provided at the upstream end position of the box transfer conveyor 8. This supply device 20 is a flat blank before being formed into the blank sheet 4 of the box member. Bend the sheet 4 into a U shape,
The box member is molded and supplied to the clamp mechanism 19. That is, although not shown, the supply device 20 includes a magazine for stacking and accommodating a large number of flat sheet-like blank sheets 4 and a suction operation member for adsorbing the bottom portion 11 of the blank sheets 4 stacked and stored in this magazine. And the bottom portion 11 by the suction operation member.
And the blank sheet 4 is drawn downward from the magazine, and the bottom 11 is passed between a pair of bending members arranged wider than the width of the bottom 11. Then, in the flat plate-shaped blank sheet 4, the rear side wall 10 and the front side wall 12 are bent upward with respect to the bottom portion 11 by the pair of bending members, and therefore the flat plate-shaped blank sheet 4 has a U-shape. While being formed into a box member, the clamp mechanism 19
And is gripped by it. Lower flaps 17 on both sides of the box member gripped by the clamp mechanism 19
The sheets are bent downward by the fixed guides 21 as they are conveyed by the clamp mechanism 19, and are conveyed while being kept in that state by the fixed guides 21. A bending means for bending the lower flaps 17 downward may be provided at a position before the fixed guides 21. When the lower flap 17 is conveyed while being bent downward by the fixed guide 21, the pair of guide members 6 of the delivery conveyor 7 is then interposed between the rear side flap 15 and the front side flap 16 on one side. Is conveyed around a sprocket (not shown), is inserted between the sprockets from below, and is extruded by the extruding member 1 next.
Is guided by the guide member 6 and inserted into the box member made of the blank sheet 4. On the other hand, the rear side flap 15 and the front side flap 16 on the side opposite to the insertion side of the container 2 are arranged so that the front side flap 16 is on the inside and the rear side flap 15 is on the outside by the side flap folding device 22. It is superposed and folded, and is maintained in that state by the fixed guide 23 and conveyed.
When the container 2 is completely housed in the box member, the rear side flaps 15 and the front side flaps 16 on the housing side are accommodated.
Side flap folding device 22 having the same configuration as above
It is folded in the same state by the fixed guide 2
The sheet is conveyed while being maintained in that state by 3. In a state in which the left and right side walls of the blank sheet 4 are bent and formed into a box member, the article conveying conveyor 5 conveys the container 2 as a contained article to a portion where the container 2 is supplied and stored. This state is shown in FIG. The blank sheet 4 formed by bending the left and right side walls is clamped by the clamp mechanism 19. The clamp mechanism 19 includes a fixed clamper 25 attached to a pair of endless chains 24 arranged in parallel, and a movable clamper 27 attached to a pair of endless chains 26 provided inside the pair of endless chains 24. By arranging the fixed clamper 25 on the front side in the conveyance direction of the blank sheet 4, the front side wall 12 provided with the lid portion of the blank sheet 4, and the movable clamper 27 on the rear side. The rear side walls 10 can be supported respectively. The movable clamper 27 is swingably attached between the endless chains 26 via a support shaft 28 provided at a lower portion thereof, and a cam follower 29 provided at a lower end portion of the movable clamper 27 is attached to a frame. It is rotatably mounted on the member 30. When the container 2 is inserted onto the bottom of the blank sheet 4 in this state, the container 2 is caught by the flap fold 3 of the blank sheet 4 and falls. In order to prevent this, the upper end portion of the rear side wall 10 is pressed by the holding device 31 such as an air cylinder attached to the frame of the caser. This prevents the blank sheet 4 from rising and prevents the container 2 from falling when the container 2 is inserted. Further, a restraining member 32 for restraining the front side wall 12 made of a spring member is provided in order to prevent the blank sheet 4 from being lifted up in a well-balanced manner. In addition, the presser device 31
It goes without saying that the operation of can be automatically controlled in synchronization with the conveyance of the blank sheet 4. Further, it can be applied to both a continuous type and an intermittent type as an article packaging device.

[0007]

As a result of adopting the above configuration, the present invention provides
The following effects can be obtained. (1) An example of an article stored in the article boxing device is one that does not fall over due to being caught on the flap fold when the container is filled.

[Brief description of drawings]

FIG. 1 is an overall schematic plan view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a box member made of the blank sheet of the present invention.

FIG. 3 is a schematic front view showing an article fall prevention device according to an embodiment of the present invention.

FIG. 4 is a schematic side view for explaining a phenomenon in which the flap fold portion on the article filling side of the present invention is caught.

[Explanation of Codes] 1 Extruded member 2 Container 3 Flap fold 4 Blank sheet 5 Product conveyor 6 Guide member 7 Delivery conveyor 8 Box conveyor 9 Container extruding device 10 ... rear side wall 11 ... bottom part 12 ... front side wall 13 ... lid part 14 ... insertion part 15 ... rear side flap 16 ... front side flap 17 ... lower flap 18 ...・ ・ Upper flap 19 ・ ・ ・ ・ Clamping mechanism 20 ・ ・ ・ ・ ・ ・ Supply device 21 ・ ・ ・ ・ Fixed guide 22 ・ ・ ・ ・ Side flap folding device 23 ・ ・ ・ ・ ・ ・ Fixed guide 24 ・ ・ ・ ・ ・ ・ Endless chain 25 ··· Fixed clamper 26 ··· Endless chain 27 ··· Movable clamper 28 ··· Support shaft 29 ··· Cam follower 30 ··· Cam member 31 ··· Holding device 32 ··· Holding member

Claims (1)

[Claims] 1. An article cartoning device comprising: a box conveyor that conveys a blank sheet in a U shape; an article conveyor that conveys an article; and an extrusion member that pushes the article on the article conveyor onto a blank sheet. In the above, there is provided a holding device that is provided so as to be able to move up and down on the box conveyor and that acts to suppress lifting of the side wall formed by the blank sheet when the article is transferred onto the blank sheet. An article fall prevention device when filling articles.