JPH06182907A - Manufacturing apparatus for packing container - Google Patents

Abstract

PURPOSE:To enable a packing container to be continuously manufactured by a method wherein a master paper supplier for master paper formed rectangularly of corrugated board paper, a sizer, a sleeve paper supplier for sleeve paper formed of the corrugated board paper, a pressure device, a sleeve paper folding device, and a master paper folding device are provided. CONSTITUTION:A rectangular master paper 1 of corrugated board paper is sent out from a master paper supplier 10. Two gluing units are formed along a longitudinal direction midway inside both side fringes of an upper face of the master paper 1 with a sizer 12. When the master paper is stopped with pressure device 14, 14, a sleeve paper of short corrugated board paper is supplied to the gluing unit of the master paper 1 from left and right sleeve paper suppliers, and heated, pressurized to be bonded with a trowel part of the pressure devices. Then, the sleeve paper is folded rectangularly with sleeve paper bending devices 15a, b. One side sleeve paper is folded inside and the other side sleeve paper is folded at a time lag with sleeve paper folding devices 16a, b. A cover presser 19 presses down the sleeve-paper via sleeve paper pressers 18a, b. Thereafter, an upper cover part is bent to midway with a master paper folding device 17b. After folding a lower cover part with a master paper folding device 17a, the upper cover part is folded again with the master paper folding device 17a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing cardboard packaging containers for packaging books and the like.

[0002]

2. Description of the Related Art Generally, when sending a book by mail or courier,
Books are sent in envelopes or box-shaped cardboard containers. However, since the size and thickness of books are different, it is necessary to put them in envelopes and box-shaped cardboard containers that match them, and if there is a gap, the book may move during transportation and the corners may be damaged. It was

For this reason, as shown in FIG. 10, a square cardboard is cut into one base paper 1 and two sleeve papers 2a,
After forming 2b, the cross stitches 3 are arranged orthogonally to the longitudinal direction of the rectangular base paper 1, and glued in a strip shape along the inside of both side edges in the middle of the base paper 1 along with the glue. A packaging container 5 has been developed in which the ends 4 of two rectangular paper sleeves 2a and 2b are adhered to each other by forming corrugations 4 and 4 and aligning the corrugations 3 of the cardboard along these.

When the packaging container 5 is shipped, first, the left sleeve paper 2a is folded inward from the fold line 6 and then the right sleeve paper 2b is folded inside along the fold line 6 as shown in FIG.
Stack as shown in. Next, in the state shown in FIG. 1, the lower cover 1a on the upper side of the base paper 1 is folded inward from the folds 6 and 6 to form the sleeve paper 2
In the state of FIG. 1, the lower upper lid portion 1b is folded inward along the fold lines 6 and 6 and is placed on the lower lid portion 1a and thinly folded before shipping.

When packing a book, the book 7 is unfolded as shown in FIG. 10 and then the book 7 is placed between the central sleeves 2a and 2b of the base paper 1 and then the left side of the book is first placed as shown in FIG. Sleeve 2a
After folding inward along the side lines 3, the sleeve paper 2b on the right side
Is folded inward along the side lines 3, and then the lower lid portion 1a of the base paper 1 is folded inward along the side lines 3 to form sleeves 2a, 2b.
, And finally, the upper lid portion 1b is bent inward along the cross stitches 3 and stacked on the lower lid portion 1a, and then sealed with an adhesive tape or the like.

Since the packaging container 5 cuts the base paper 1 and the sleeve papers 2a and 2b from a square cardboard, there is no waste of material, and when the book 7 is packed, the base paper 1 and the sleeve papers 2a and 2a are also used.
Since it is bent along the side stitches 3 of 2b, it is easy to bend at any position and packaging is easy. For this reason, the book 7 can be packed without a gap, and the sleeve papers 2a and 2b are adhered slightly inside both side edges of the base paper 1, and the left and right side edges of the base paper 1 project to serve as the buffer portions 8 and 8. Therefore, even if a corner is hit during transportation, the book 7 can be prevented from being damaged and various effects can be obtained.

However, in comparison with the conventional packaging container in which one cardboard is punched out and assembled in a box shape, the packaging container 5 has three cardboards of the parent paper 1 and the sleeves 2a, 2b glued together. Since it is manufactured by attaching it, it cannot be manufactured by the conventional device, and its development has been desired.

[0008]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus for continuously producing the packaging container having the above structure.

[0009]

SUMMARY OF THE INVENTION According to the present invention, a base paper feeding device for feeding a rectangular base paper made of cardboard paper to a conveyor along its longitudinal direction, and an intermediate upper surface of the base paper. On both sides, a gluing device for gluing in a strip shape along the lengthwise direction, and a sleeve paper feeding device for feeding left and right sleeves made of shorter cardboard paper from both sides of the glued base paper, and glued A pressure device that bonds the base paper and the left and right sleeves, a sleeve paper folding device that sequentially folds the left and right sleeves from one side to the inside, and folds the front and back of the base paper from one side to the inside, It is characterized in that it is composed of a base paper folding device that is superposed on sleeves.

[0010]

When the packaging container is manufactured by the apparatus having the above structure, the parent paper is fed from the parent paper feeder to the conveyor one by one,
Two gluing parts are formed in a strip shape along the longitudinal direction from the nozzles inside the both side edges in the middle of the base paper by passing through the gluing device arranged in the front. After that, it is stopped below the pressurizing device, the left and right sleeves are supplied one by one from the sleeve supplying device, and the ends of the sleeves are aligned with the glued portion of the base paper.

After that, the pressing device descends to pressurize the overlapped portions, the base paper and the left and right sleeves are adhered to each other by the glued portion, and the left and right sleeve folding devices are activated to operate the sleeves. Bend at a right angle. After this, when the pressurizing device rises, it passes through the sleeve folding device while being conveyed forward by the conveyor, and the one side sleeve is first folded inward, facing the other sleeve folding device with a time lag. The sleeves are folded inside and stacked.
When further conveyed by the conveyor in this way, one of the base paper folding devices operates to fold the lower lid of the base paper onto the sleeve and then the other base paper folding device operates. Then, the upper lid is folded inward to form a packaging container.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to FIGS. FIG. 1 shows a schematic configuration of the apparatus. Reference numeral 10 is a parent paper feeding device that stocks rectangular-shaped parent paper 1 formed of cardboard paper and supplies it to a conveyor 11 one by one,
12 is a gluing device provided in front of the base paper feeding device 11, 13
a and 13b are provided on the left and right in front of the gluing device 12, and a sleeve feeding device that stocks the sleeves 2a and 2b and supplies them to the conveyor 11 one by one, and 14 is provided between the sleeve supplying devices 13a and 13b. The pressurizing device, 15a and 15b are sleeve folding devices provided on both sides thereof, 16a and 16b are blade-shaped folding devices, 17a and 17b are parent folding devices, and 18a and 18b are folding devices. The sleeve paper pressing plates of the folded sleeve papers 2a and 2b, 19 is an upper cover pressing plate, and 20 is a chain conveyor.

The above-mentioned apparatus will be described in more detail. As shown in FIG. 2, the base paper feeding device 10 has a take-out port 23 opened in front of the lower part of a stock case 22 having an open upper part, and a feed roller 24 provided below this. Then, the parent paper 1 put in the stock case 22 is supplied to the chain conveyor 11 one by one from the outlet 23.

A gluing device is provided in front of the base paper feeding device 10.
12 is provided, and the heat-sealable adhesive contained in the tank 25 is jetted downward from the nozzle 26 by a pump to paste the adhesive inside the both side edges of the upper surface of the base paper 1 in a strip shape along the longitudinal direction thereof. It is intended to form the parts 4, 4. This parent paper feeder
A pressure device 14 is provided in front of the device 10, and a plate-like iron portion 27 having a built-in heater is supported by a link mechanism so as to be vertically movable as shown in FIG.

On both sides of the pressure device 14, a sleeve folding device 15a,
15b is provided, in which a lever 29 having a roller 28 attached at its tip rotates about a rotary shaft 30 as a fulcrum, and the sleeves 2a, 2b bonded by a pressure device 14 are folded at a right angle as shown in FIG. It is designed to bend. Also, this sleeve folding device 15a, 15b
Sleeve paper feeders 13a and 13b are provided on both sides of the sleeve as shown in FIG. This device is a tilted stock case 32
The front side of the stock is opened, and the suction device 33 is rotatably attached below this, and the sleeve papers 2a and 2b in the stock case 32 are sucked up one by one and on the base paper 1 that has been conveyed by the chain conveyor 11. It is designed to be placed on.

As shown in FIG. 5, the blade-shaped cuff folding devices 16a and 16b provided in front of the pressurizing device 14 vertically stand up the ingress side plate material and twist it in the middle part to discharge it. The folding device 16a for folding one sleeve 2a is twisted first, and after folding the sleeve 2a, the other sleeve 2b is folded inward with a time lag. It is becoming popular. Further, as shown in FIG. 6, the chain conveyor 11 is provided up to the tip ends of the sleeve folding devices 16a and 16b, and from there, another chain conveyor 20 is provided at the center along the longitudinal direction. In the figure, 21 is a feed protrusion provided on the chain conveyor 20, and 31 is a guide rail.

In the middle of the chain conveyor 20, FIG.
Further, as shown in FIG. 8, base paper folding devices 17a and 17b are provided, in which a lever 29 having a roller 28 attached to the tip thereof rotates about a rotation shaft 36 as a fulcrum, and a lower lid portion 1a of the base paper 1 is provided. And the upper lid portion 1b is sequentially folded inward. As shown in FIG. 7, sleeve paper pressing plates 18a and 18b are provided beside the parent paper folding devices 17a and 17b, and can be slid to the left and right by cylinders 35 and 35. Also, the parent paper folding device 17
Upper lid pressing plates 19 and 19 are provided in front of a and 17b in parallel with the chain conveyor 20, and are rotatable up and down with a rotary shaft 37 as a fulcrum.

An outline of the process of manufacturing the packaging container 5 with the apparatus having the above structure is shown in FIG. First, as shown in FIG. 2, rotate the chain conveyor 11 and the feed roller 24,
The parent paper 1 stored in the stock case 22 of the parent paper feeder 10 is fed to the chain conveyor 11 one by one from the outlet 23. The base paper 1 passes through the gluing device 12 while being conveyed on the chain conveyor 11, and at this time, the glue in the tank 25 is jetted from the nozzle 26 by the pump for a predetermined time, so that the base paper 1 at the middle of the upper surface of the base paper 1 as shown in FIG. Two gluing parts 4 and 4 are formed in a strip shape along the longitudinal direction on the inside of both side edges.

When the base paper 1 further advances, a stopper (not shown) operates below the pressing device 14 and stops. At this time, as shown in FIG. 3, the suction device is provided on the front surface of the slanted stock case 32 of the sleeve feeding devices 13a and 13b as shown by a virtual line.
33 rotates to adsorb the sleeve papers 2a and 2b one by one, and rotates to the glued portions 4 and 4 of the base paper 1 conveyed on the chain conveyor 11 to the ends of the sleeve papers 2a and 2b. Align and place.

After that, a motor (not shown) is rotated, and the trowel portion 27 of the pressurizing device 14 is lowered by the link mechanism. The built-in heater heats and pressurizes the base paper 1 and the sleeve paper. Bond 2a and 2b. Next, FIG. 3 and FIG.
As shown in FIG. 5, the lever 29 of the sleeve folding device 15a, 15b rotates about the rotation shaft 30 as a fulcrum, and the roller 28 attached to the tip bends the sleeve 2a, 2b at a right angle.

After that, when the pressurizing device 14 rises, it is conveyed forward by the chain conveyor 11 and passes through the sleeve folding devices 16a and 16b as shown in FIG. At this time, since the sleeve folding devices 16a, 16b are formed so that the plate material is erected vertically on the entry side and twisted in the middle to be horizontal on the discharge side, one of the sleeve papers 2a standing vertically first Is gradually folded inward while being guided by the vertical portion of the sleeve paper folding device 16a, and the sleeve paper 2b is folded inside by the other sleeve paper folding device 16b with a time lag.

As shown in FIG. 6, the sleeve paper 2a is placed on the base paper 1,
When 2b is stacked and folded and is conveyed by the chain conveyor 11, it is then conveyed by another chain conveyor 20 and the stopper is activated under the upper lid pressing plate 19 to stop as shown in FIG. To do. Next, the cylinder 35 advances and the sleeve paper 2a, 2b in which the sleeve presser plates 18a, 18b are folded
Hold down. Next, as shown in FIG. 8, the rotary shaft 37 rotates and the upper cover pressing plates 19, 19 rotate upward.

After this, the rotary shaft of the one main paper folding device 17b
36 is operated and lever 29 is rotated to attach the roller to the tip.
28 bends the upper lid portion 1b halfway and stops. In this state, the other base paper folding device 17a is operated to fold the lower lid portion 1a on the sleeve 2b as shown in FIG. 8, and then the base paper folding device 17a is operated again. The upper lid portion 1b is folded inward as shown by an imaginary line to complete the packaging container 5. After this,
After the rotary shaft 37 rotates and the upper lid pressing plates 19 and 19 rotate downward to press on the packaging container 5, the sleeve paper pressing plates 18a and 18b retreat and the stoppers are released. After this, the feeding projections 21 projecting from the chain conveyor 20 rotate, and the completed packaging container 5 is discharged.

It should be noted that in the above embodiment, a heat-melting adhesive is used as the adhesive, and the pressurizing device 14 also has a trowel part having a built-in heater.
Although 27 is used, a structure in which an adhesive that is not heat-fusible is used and the pressure is simply applied may be used. Further, in the above embodiment, the case of packing a book has been described, but the present invention can be applied to the case of packing other articles.

[0025]

As described above, according to the apparatus for manufacturing a packaging container of the present invention, the sleeve paper is adhered to the middle of the base paper so that the folding direction is parallel to the sideways and the bending is easy at any position. It is possible to continuously manufacture a packaging container that can be packed without any gap.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of a packaging container manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is a side view showing the base paper feeding device, the gluing device, and the pressing device of FIG.

FIG. 3 is a front view showing the pressure device and the sleeve paper feeding device of FIG. 1;

4 is a perspective view showing the pressure device and the sleeve folding device of FIG. 3. FIG.

5 is a perspective view showing the sleeve folding device of FIG. 1. FIG.

6 is a perspective view showing the sleeve folding device of FIG. 1. FIG.

7 is a plan view showing the parent paper folding device of FIG. 1. FIG.

8 is a side view showing the parent paper folding device of FIG. 7. FIG.

FIG. 9 is a schematic explanatory view showing a manufacturing process by the manufacturing apparatus of the present invention.

FIG. 10 is a plan view showing a packaging container.

11 is a cross-sectional view showing a state in which the packaging container of FIG. 10 is folded.

12 is a cross-sectional view showing a state where books are packed in the packing container of FIG. 11.

[Explanation of sign]

 1 Base paper 2a Sleeve paper 2b Sleeve paper 3 Side grain 4 Glued part 5 Packaging container 7 Books 10 Base paper supply device 11 Chain conveyor 12 Glue device 13a Sleeve paper supply device 13b Sleeve paper supply device 14 Pressurization device 15a Sleeve paper folding device Device 15b Sleeve folding device 16a Sleeve folding device 16b Sleeve folding device 17a Master paper folding device 17b Master paper folding device 19 Top cover holding plate 20 Chain conveyor 22 Stock case 26 Nozzle 27 Iron 28 Roller 29 Lever 33 adsorption device

Claims (1)

[Claims] 1. A base paper feeding device for feeding a rectangular base paper made of cardboard paper to a conveyor along the longitudinal direction thereof, and both sides of the upper surface of the base paper in the middle thereof along the longitudinal direction. Glue device for gluing into strips, a sleeve feeding device that supplies left and right sleeves made of shorter cardboard from both sides of the glued parent paper, and the glued parent paper and left and right sleeves Adhesive pressure device, sleeve paper folding device that folds left and right sleeves inward sequentially from one side and stacks it, and base paper that folds the front and back of the base paper inward from one side in order and stacks on the sleeve paper An apparatus for manufacturing a packaging container, which comprises a folding device.