JPH1034772A - Device for pasting folded-box edge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve improvement of adhesion precision and rationalization of pasting operation by automation for adhesion of a folded box edge material in manufacture of a folded box. SOLUTION: A narrow long platy folded box edge material 10 wherein joining slant faces at front and rear ends and folding V grooves at several positions are formed transfers longitudinally by riding on a conveyer 11. Its tip is dislocated from the conveyer 11 and one end is supported freely rotatably with a shaft approaching the conveyer. When the material is placed on a pasting operation plate 12 extended in a flow direction, its tip part is detected with a sensor 14 positioned upward to operate a cylinder 13, the pasting operation plate 12 is raised aslant centering a shaft-supporting point 12a, and a joining slant face 12a at a tip of the folded box edge material 10 comes in contact with an outer periphery of a pasting roll 15 arranged above the tip part of the pasting operation plate 12 to carry out the operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding box edge gluing apparatus for folding a folding box edge material and bonding both ends in the production of a folding box for storing a lunch box, cooked food, and the like.

[0002]

2. Description of the Related Art In a conventional folding box, a groove for fitting a bottom plate is provided near one side of an edge member formed of an elongated plastic foam plate, and a V-cut groove for bending is formed at both ends and a joining slope is formed. Before fitting the bottom plate into the groove and bending the V-cut groove to fit the joint slopes at both ends in a box shape, an adhesive is appropriately applied (glued) to the joint slope by hand and assembled.

[0003]

In the conventional manual gluing, there is a case where an adhesive coating material is not constant due to impatience due to a need for prompt work, and it is not possible to apply the adhesive uniformly over the entire surface of the joining slope. And there is a problem that the rate of occurrence of adhesion failure is high.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a method in which the amount of the adhesive applied is constant by mechanizing the gluing to the joining slope, and the entire surface of the joining slope is made uniform. Since the coating can be performed, if the gluing is performed by the apparatus of the present invention at the timing of the assembling work speed, the gluing boxes are sequentially assembled immediately after the gluing, so that the bonding failure can be prevented and the assembly process can be easily standardized.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a conveyor for transporting a folding box edge material having a joining slope at both ends and a plurality of V-cut grooves for bending in the width direction of an elongated plate material in a longitudinal direction with the joining slope facing upward. A sizing operation plate, which is rotatably supported at one end and is arranged in the direction of flow of the conveyor, is provided with lifting means on the lower side. A sensor for detecting the inside of the folding box edge material is provided, and a gluing roll whose axis is orthogonal to the traveling direction of the conveyor is disposed above the vicinity of the anti-shaft support end of the gluing operation plate,
When the sensor detects the folding box edge material in progress and activates the lifting means and raises the gluing operation plate at an angle around the shaft fulcrum, the joining slope at one end of the folding box edge material is on the outer circumference of the gluing roll. It is configured to return to the old position after touching and gluing.

[0006] Further, the tip is approached to the outer periphery of the sizing roll, the coating amount is defined by the gap, and the coating amount is adjusted to form a hot-melt adhesive reservoir between the sizing roll and the outer periphery. The plate was attached to a support with heater.

[0007]

Embodiments will be described with reference to the drawings.
FIG. 1 shows a folding box edge material 10 placed on a conveyor 11 with its longitudinal direction aligned with the traveling direction.
3 shows a state in which the paste is in contact with the outer circumference of the gluing roll 15 and glued.

[0008] The gluing operation plate 12 is rotatably supported at one end near the end of the conveyor 11 so as to be rotatable.
1 is a plate extending in the traveling direction of the stencil, and the rod end of the air cylinder 13 is connected to the back surface.
Above 2, a sensor 14 is provided, and a sizing roll 15 is disposed above the vicinity of the tip of the sizing operation plate 12 so that the axis thereof is orthogonal to the traveling direction of the conveyor 11.

The glue roll 15 has a coating amount adjusting plate 1 whose tip is approached to the outer periphery and the coating amount is regulated by a gap.
6 is attached to a heater-equipped support 17 so as to be adjustable by a small screw 18. An adhesive reservoir 19 is formed by the outer periphery of the gluing roll 15 and an application amount adjusting plate 16, and a hot-melt adhesive 20 is retained. Glued roll 15 that rotates
A suitable amount is adhered to the outer periphery of.

In the drawing, reference numeral 21 denotes a feeding roll provided above the end of the conveyor 11, reference numeral 22 denotes a receiving plate provided following the gluing operation plate 12, and reference numeral 23 denotes a pair of upper and lower members provided near the receiving end of the receiving plate 22. Shows a take-off roll with intervals opening and closing.

With the above structure, the folding box edge member 10 having the joining slope 10a and the bending V-groove 10b that travels in the direction of arrow A on the conveyor 11 faces upward.
Of the gluing operation plate 12 on the same plane as the conveyor 11 indicated by the imaginary line by the feeding roll 21 provided at the upper end of the
When pulled up, the sensor 14 detects the joining slope 10a at the tip.

Subsequently, the joining slope 10a of the folding box edge material 10
When the air cylinder 13 approaches the gluing roll 15, the air cylinder 13 is actuated to raise the gluing operation plate 12 in a slanted state so that the folding box edge material 10 is bent V-grooves 10b.
And is bent by the elasticity of the gluing operation plate 12 itself, and is lifted to be inclined.
Is brought into contact with the outer circumference of the gluing roll 15 to glue instantaneously.

Immediately after the completion of the gluing, the air cylinder 13 is operated in reverse to return the gluing operation plate 12 to the former virtual line state. At this time, since the folding box edge material 10 is still long, it is unwound by the conveyer 11 and the unwinding roll 21 and advances on the receiving plate 22, and the glued joining slope 10a at the tip end
When the paper passes between the take-out rolls 23 which are opened in the state of the imaginary line, the take-out rolls 23 are for taking out the folding box edge material 10 at a reduced interval to the state of the solid line, and thus are applied to the joining slope 10a. The adhesive is prevented from adhering to the outer periphery of the take-out roll 23.

At the time of operation of the take-out roll 23, the folding box edge material 10 is still being taken out by the take-out roll 21, but the take-out speed of the take-out roll 23 and the take-out roll 21
Since the feeding speed is set the same, no problem occurs. The timing of the operation of the air cylinder 13 and the opening and closing of the take-out roll 23 is such that the time lag from when the sensor 14 detects the folding box edge material 10 is controlled by a timer.

The folded box edge material 10 thus glued is
Before the adhesive is dried, the joint slopes 10a at both ends are bonded together while sequentially fitting the bottom into the existing bottom fitting groove by hand manually in sequence and assembled into a folding box.

In this embodiment, an example of using a hot-melt adhesive is shown, but other adhesives can of course be used. Although an air cylinder is shown as the lifting means 13, other means such as a cam may be used. Although the conveyor 11 is shown as a belt type, a roller conveyor may be used. There are various ways of attaching the bottom, such as fitting into the groove and attaching the box edge to the bottom after bonding is completed, but this is a matter different from the gist of the present application and will not be described in detail.

[0017]

The present invention is embodied in the form described above and has the following effects.

Since the amount of the adhesive applied can be adjusted precisely, it is constant without excess and deficiency, and the ideal bonding can be performed. Thus, there is no poor bonding. The quality is constant.

Since the adhesive is applied to the entire surface of the joining slope on the average and adheres to the entire surface, it is possible to prevent juice from the stored food from leaking from the adhesive surface.

Since the amount of the adhesive used is constant, there is no waste due to excessive application in the case of manual operation, which is economical.

Since standardization of work is easy, it is easy to make a production plan, and accurate delivery date management and inventory management can be performed.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing the configuration of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Folding box edge material 10a Joining slope 10b Folding V-groove 11 Conveyor 12 Glue operation plate 13 Air cylinder 14 Sensor 15 Glue roll 16 Coating amount adjustment plate 17 Heater support 18 Small screw 19 Adhesive reservoir 20 Adhesive 21 Discharge Roll 22 Receiving plate 23 Extraction roll

Claims (2)

[Claims] 1. A folding box edge member (10) having a joining slope (10a) at each end and a plurality of bending V-grooves (10b) formed in a width direction of an elongated plate, with the joining slope (10a) facing upward. Near the end of the conveyor (11) to be transported in the longitudinal direction,
One end is pivotally supported (12a), and the conveyor (11)
A sizing operation plate (12) arranged in the direction of flow is provided with lifting means (13) on the lower side, and a folding box edge material (10) in progress is provided above the sizing operation plate (12). (14), and a sizing roll (15) whose axis is orthogonal to the traveling direction of the conveyor (11) is disposed above the vicinity of the anti-shaft support end of the sizing operation plate (12). Then, the sensor (14) detects the folding box edge material (10) in progress, activates the lifting means (13), and moves the gluing operation plate (12) to the pivot (1).
2a), the joining inclined surface (10a) at one end of the folding box edge material (10) forms a sizing roll (1).
5) A gluing box edge gluing apparatus characterized in that the glue is brought back into the old position after being glued in contact with the outer periphery of 5). 2. A hot melt type adhesive reservoir (1) is provided between an outer periphery of the sizing roll (15) and an outer periphery of the sizing roll (15) to regulate an application amount by a gap.
2. The folding box edge gluing device according to claim 1, wherein the coating amount adjusting plate (16) forming (9) is attached to the support with heater (17).