JPH10329239A - Folding corrugated fiberboard correcting conveying apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a folding corrugated fiberboard correcting conveying apparatus for transferring to next number-of-sheet counting step, in the state that a sizing piece of a double folding sheet before assembling a corrugated fiberboard case is adhered to a collision side plate without deviating. SOLUTION: A corrugated fiberboard case developing sheet is double folded to a lower surface side, a sizing piece provided at one end of a sheet is adhered to the other end surface at the lower surface, the lower surfaces are directed down, stacked along an upright guide plate 3. And, an upper surface guide implement 4 is provided at a lower part of the plate 3, and a lower surface support conveying belt conveyor 5 is provided directly under the implement 4 via a gap (t). An upper surface delivering retaining roller 6 is provided at a delivery side of the implement 4, and a circumferential speed of the roller 6 is formed at least at the same as a transferring speed of the conveyor 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adjusting device for preventing a glued piece of a corrugated cardboard double sheet, which is conveyed to a counter without a glue or adhesive being sufficiently dried, from being shifted from a gluing position.

[0002]

2. Description of the Related Art The present invention relates to a process for forming a notch in a flap of a cardboard box development sheet and a process for forming three vertical folded lines a, b, c between side plates A, B, C, D in a cardboard box production line. , The side plates A, D are folded 180 degrees in the opposite direction from the folding vertical lines a, c, glue or an adhesive is applied to a glued piece attached to the side plate D, and is adhered to the side plate A, and the half of the cardboard box is Products are delivered to consumers as products (Fig. 5 (a), Fig. 8).

However, this semi-finished product has 1
Before the sheets are supplied, they are stacked on the lower support belt conveyor along the upright guide plate from the upper side, and from the lower layer to the number counter for one piece by the above-mentioned belt conveyor, 1 is stacked.
Since it is necessary to send individual products, an upper surface guide for the lowermost semi-finished product is provided directly below the belt conveyor with a gap corresponding to one semi-finished product below the upright guide plate.

In order to maintain this gap, the upper surface of the semi-finished product on the belt conveyor is slightly pressed by the upper surface guide toward the belt conveyor, and the transfer resistance differs between the upper surface and the lower surface (one side with glue) of the semi-finished product. . That is, the lower surface of the semi-finished product is forcibly transferred at a constant speed by the belt conveyor, but the upper surface resists the transfer.

Therefore, when the glued pieces on the lower surface are not sufficiently dried, the glued pieces are displaced as shown in FIG.
In the case of a face box, the flaps overlapped as shown by the lower layer line in FIG. 9, resulting in a defective product. This tendency is particularly large in a cardboard box having a long flap for storing burdock, yam, and the like.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a cardboard box semi-finished product which prevents the glued pieces from being unevenly distributed or displaced and has no defective products.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention folds a cardboard box development sheet on the lower surface side, and glues a glued piece provided at one end of the sheet on the lower surface to the other end surface. Then, the lower surface is downwardly stacked along the upright guide plate, and an upper surface guide is provided at a lower portion of the upright guide plate, and a lower surface support carrying belt conveyor is provided immediately below the guide with a gap therebetween, A folding corrugated cardboard correcting / conveying device capable of forming an upper surface carrying-out press roller on the carry-out side of the upper surface guide device and having a peripheral speed of the roller at least equal to the transition speed of the lower surface supporting carry-out belt conveyor. The folding corrugated paper straightening and conveying device according to the first aspect of the present invention, wherein an upper surface carrying press belt conveyor is provided in place of the upper surface carrying press roller, and the speed of the lower transition portion of the conveyor is provided. There are train-around the end rollers of the folding cardboard orthodontic transfer apparatus underside support unloading belt conveyor of the first invention, wherein the speed of the upper transition portions and may be formed at least on the same lower face support unloading belt conveyor,
And an endless belt conveyor that bypasses two same-level guide rollers provided diagonally above the end roller, and a leading end stopper of the double-folded sheet is provided immediately above the end of the same-level guide roller. A reciprocating plate for aligning the rear end of the tatami sheet is provided, and the number of stacked double fold sheets supplied obliquely upward from the terminal roller onto the same level guide roller is fixed by the height of the reciprocating plate and the stopper. 5. The folding corrugated board correcting and conveying apparatus according to any one of the first, second and third aspects of the invention, further comprising a transfer device for transferring a certain number of stacked double-folded sheets rising above the reciprocating plate and the stopper. It is constituted by the folding corrugated cardboard straightening and conveying apparatus according to the fourth aspect of the present invention, wherein the upper surface carrying press belt conveyor is driven by a servomotor.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Side plates A and D on both sides thereof are folded 180 degrees in opposite directions from folding lines a and c on a cardboard box development sheet shown in FIG. A glue or an adhesive is applied and polymerized and adhered to the inner surface of the other side plate A to be folded twice as shown in FIGS. 2, 5 (a), 6 and 8, and then sandwiched between the conveyers 13, 13 'Upright guide board 3
Are stacked on the lower support belt conveyor 5 along
The temporary stacking portion 14 of the double-fold cardboard sheet 12 is structured.

In the depositing section 14, the glued pieces 2 of the double-folded sheet 12 are on the lower surface side, and the lower surface side of the lowermost layer is supported by the upper transition section 5 'of the lower surface supporting and carrying belt conveyor 5, and The lowermost double fold sheet 12 is carried out to the left in FIG. 1 by the upper transition portion 5 ′ from the gap t between the transition portion 5 ′ and the upper surface guide 4 provided below the upright guide plate 3.

After the gap t, the upper surface of the double-folded sheet 12 is pressed by the upper-surface carrying-out pressing roller 6, and is maintained at least at the same speed as the speed of the upper transfer portion 5 'of the belt conveyor 5. The upper and lower surfaces of the sheet 12 move at least at the same speed, so that the bonding position between the glued piece 2 and the side plate A is not shifted, and the deviation as shown in FIG.

As shown in FIG. 3, the upper surface of the double fold sheet 12 is maintained at least at the same speed as the lower surface by the upper surface discharging press belt conveyor 6 'instead of the upper surface discharging pressing roller 6. The displacement between the glued piece 2 and the side plate A does not occur as shown in FIG.

In this way, the double-folded sheet 12 transferred to the end roller 5 "by the upper transition portion 5 'is inclined by the endless belt conveyor 8 inclined obliquely upward toward the same-level guide rollers 7, 7'. Moving upward, the lower surface of the double fold sheet 12 already mounted on the same-level guide rollers 7 and 7 'and stopped by the front end stopper 9 and the belt 8 between the same-level guide rollers 7 and 7' And is sequentially stacked from below on the belt 8 between the guide rollers 7, 7 '.

The stopper 9 and the reciprocating plate 10 for rear end alignment
Is the height of 5 double-folded sheets 12, so when 15 sheets are stacked, the upper 10 double-folded sheets 12 come into contact with the reciprocating plate 10 for rear end alignment. Protrusion 1
The 10 sheets are pushed by the transfer device 11 using the upright transfer rod 11 ″ provided with 1 ′ and transferred onto the next carry-out conveyor 20, tied and shipped as a set of 10 sheets of semi-finished product.

[0014]

As shown in FIG. 7, a cardboard box development sheet 1 has four side plates A, B, C, D, and flaps 15, 15 provided on both sides of the side plates, and one end of a side plate D at one end. Side plates A, B,
Folded vertical lines a, b, and c are pressed and formed on the boundary between C and D.

In the next step, the sheet 1 is folded at both sides by folding vertical lines a and c by 180 degrees in the opposite direction, and a glued piece 2 coated with glue or an adhesive or adhesive is attached to one side plate A. The polymerized portions are adhered or adhered, and the upper and lower sandwiching conveyors 13 and 13 ′ as a semi-finished product of the double fold sheet 12 of the upper plates B and C and the lower plates A and D, that is, the cardboard box 16 shown in FIG. 9.
It descends along the upright guide plate 3 from between, and the double-folded sheet temporary stacking deposit part 14 is formed.

The lowermost layer of the stacking depositing section 14 is placed in contact with the upper transition section 5 'of the lower surface support conveyor belt conveyor 5, and the upper transition section 5' and the upper guide provided below the upright guide plate 3. A gap t between each of the double-folded sheets 12 is interposed therebetween.

On the carry-out side of the upper surface guide 4, an upper surface carry-out press roller 6 is provided as shown in FIG. 1, or as shown in FIG. 2, an upper surface carry-out press belt conveyor 6 ′ is provided. Each of them is driven by a variable speed motor, and a servo motor can be used as the variable speed motor. The week speed of the roller 6 and the speed of the belt conveyor 6 ′ are adjusted at least by the upper transition portion 5 of the lower surface supporting / unloading belt conveyor 5. Set the same or slightly faster (+ 5%) as the speed of '.

Two same-level guide rollers 7, 7 which are substantially wrapped around the terminal roller 5 "of the lower-surface supporting discharge belt conveyor 5 and are provided obliquely upward from the terminal roller 5" toward the discharge side. , And an endless belt conveyor 8 that bypasses the rollers 7, 7 'and the end roller 5 "is provided. The length of the belt 8 between the guide rollers 7, 7' of the same level is determined by the length of the double fold sheet 12. By providing the leading end stopper 9 of the sheet 12 just above the discharge end of the guide rollers 7, 7 ', the horizontal position between the guide rollers 7, 7' stopped by the stopper 9 as shown in FIG. An opening angle is formed between the rear portion of the double-folded sheet 12 and the belt 8 directed obliquely upward from the terminal roller 5 ″, and the double-folded sheet 12 that rises obliquely upward by the belt 8 directed obliquely upward is formed as described above. Guide roller 7,
The belt 8 between the belts 7 'and the horizontal double fold sheet 12 already on the rollers 7, 7' are infiltrated and sequentially stacked from below.

The height of the stopper 9 is set to the double fold sheet 1
The air cylinder 17 is provided with a reciprocating plate 10 for aligning the trailing end of the sheet 12, and the upper end of the reciprocating plate 10 is stacked above the reciprocating plate 10 and the stopper 9. A vertical transfer rod 11 "having an insertion blade-shaped projection 11 'at its lower end contacting the vertical rod 11" is provided. Transfer device 1 that presses and slides onto the next carry-out conveyor 20 along the horizontal guide guide to the position and conveys it
Form one.

Reference numeral 18 in the drawing denotes an endless belt bypass roller provided immediately below the front end roller 7 'of the same level rollers 7, 7', and 19 denotes a reciprocating plate for rear end alignment of the depositing unit 14.

[0021]

As described above, according to the present invention, the lower surface of the double-folded sheet is glued on the upper transition portion of the lower-surface support take-out belt conveyor for sending one sheet to the double-folded sheet counter device of the cardboard box. The side plates A, B,
The connecting boundary line between the both end side plates A and D in C and D is formed exactly in parallel with the other boundary lines, and there is an effect of keeping the yield of the cardboard box product good.

Further, there is an effect that the double-folded sheets of the cardboard box, which is a semi-finished product, are stacked in an orderly manner, smoothly slid and transported to the next carry-out conveyor, and packed and shipped.

[Brief description of the drawings]

FIG. 1 is a side view showing a folding cardboard straightening and conveying apparatus of the present invention.

FIG. 2 is a perspective view of a double fold sheet of a cardboard box.

FIG. 3 is a side view of a straightening / conveying device using an upper surface carrying presser belt conveyor.

FIG. 4 is a side view showing a conventional folding cardboard straightening and conveying apparatus.

FIG. 5A is a bottom view of the double fold sheet in a normal state. (B) The figure is a bottom view in the deflected state.

FIG. 6 is a longitudinal sectional view taken along line AA of FIG.

FIG. 7 is a development view of the cardboard box.

FIG. 8 is a perspective view of a double fold sheet to which a glued portion is adhered.

9 is a perspective view of an assembling cardboard box of the double fold sheet of FIG. 8;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Cardboard box development sheet 2 Glue piece 3 Upright guide plate 4 Upper surface guide device t Gap 5 Lower surface support conveyor belt conveyor 5 'Upper transition part 5 "End roller 6 Upper surface presser roller 6' Upper surface presser belt conveyor 6" Lower transition portion 7, 7 'Same-level guide roller 8 Endless belt 9 Tip stopper 10 Reciprocating plate for rear end alignment 11 Transfer device

Claims (5)

[Claims] 1. A cardboard box unfolding sheet is double-folded on the lower surface side, a glued piece provided at one end of the sheet is adhered to the other end surface on the lower surface, and the lower surface faces downward along the upright guide plate. An upper surface guide is provided at the lower part of the upright guide plate, a lower surface support belt conveyor is provided immediately below the guide with a gap therebetween, and an upper surface discharge press roller is provided on the discharge side of the upper surface guide. A folding corrugated paperboard straightening / conveying device wherein the peripheral speed of the roller can be formed at least as high as the transition speed of the lower-surface support carrying belt conveyor. 2. The folding and corrugated board correcting and conveying apparatus according to claim 1, wherein the upper surface carrying-out press roller is driven by a variable speed motor. 3. The method according to claim 1, further comprising the step of providing a top conveyor belt presser conveyor instead of the upper conveyor belt presser roller, wherein a speed of a lower transition portion of the conveyor is at least equal to a speed of an upper transition portion of the lower surface support conveyor belt conveyor. 2. The folding corrugated cardboard straightening and conveying apparatus according to claim 1, which can be used. 4. A belt supported by an end roller of a lower surface support take-out belt conveyor and provided obliquely upward from the end roller.
An endless belt conveyor bypassing the same level guide roller is provided, a leading end stopper of the double-folded sheet is provided immediately above the end of the same level guide roller, and a reciprocating plate for rear end alignment of the double-folded sheet is provided. The height of the reciprocating plate and the stopper makes the number of stacked double-folded sheets fed obliquely upward from the end roller onto the same level guide roller constant, and rises above the reciprocating plate and the stopper. A transfer device for transferring a certain number of stacked double-folded sheets.
4. The folding and corrugated cardboard straightening and conveying device according to any one of 2 and 3. 5. The folding and corrugated cardboard straightening / conveying apparatus according to claim 4, wherein the upper surface carrying presser belt conveyor is driven by a servomotor.