JPH07315347A - Compression packaging - Google Patents

Abstract

PURPOSE:To increase a packaging efficiency with a packaging paper by compressing an article to be packaged. CONSTITUTION:Articles to be packaged 12 which are stacked and compressed by a pressing machine 1 are pushed out from the compression unit in the direction which is perpendicular to the compressing direction. By doing so, the articles to be packaged 12 are inserted from the opening of a wrapping/receiving case 20 while taking in a packaging paper 27 which is arranged on the upper surface opening edge of the wrapping/receiving case 20 which faces the end surface of the compressed articles to be packaged 12 and comes closer. Then, residual parts, which stick out from the upper surface and end surfaces of the wrapping/receiving case 20, of the packaging paper 27 wrapping three surfaces of the articles to be packaged 12 under a condition wherein the articles to be packaged 12 are contained in the wrapping/receiving case 20, are folded to package the six surfaces of the compressed articles to be packaged. By this method, the compressed articles to be packaged 12 of an approx. equilateral hexahedron are inserted from the upper surface opening of the wrapping/receiving case 20 while taking in one sheet of the packaging paper, and the projected parts of the stuck out packaging paper can be folded along the ridge lines of the articles to be packaged to complete the packaging.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compression packaging method for compressing and packaging paper folding products such as paper bags, signatures, and booklets and textile products such as clothes, blankets, and futons.

[0002]

2. Description of the Related Art The thickness of paper bags varies greatly depending on the part.
The paper bag to which the handles are attached bulges especially at the handles, and collapses when stacked in large numbers. Therefore, conventionally,
For the packaging of the paper bags, for example, 25 bags are arranged and bound by a strapping machine to form a bundle. While stacking this paper bag upside down, stack 4 bundles on the wrapping paper, wrap it with the wrapping paper laid on the lower side while pressing it from above, fasten this wrapping paper with gum tape, fold both left and right ears, fasten with gum, flat cord A method of bundling tapes with a packaging machine is adopted.

This packaging work is a very laborious work, the degree of compression is poor, and the finish is very poor. Moreover, since the packaging work determines the bag making ability, there has been a particular demand for labor saving, streamlining, and improvement of the packaging finish.

[0004]

In the conventional method for packaging a paper bag described above, the paper bag does not swell when wrapped with a wrapping paper, even if the paper bag bundles are bound by a stringing machine while being pressed by hand and the paper bag bundles are stacked and pressed from above. The degree of compression is poor because it is wrapped around, and in order to solve this, it is necessary to compress the paper bag bundle by applying a strong press.

When the bundle of paper bags is pressed from above, the stack escapes to the side and the stacking is disturbed, and the regular hexahedron is not formed. In this state, the bundle of paper bags is wrapped with the wrapping paper. become worse.

The present invention has been made in view of the above problems, and provides a compression packaging method capable of compressing an article to be packaged to improve packaging efficiency.

[0007]

The compression packaging method of the present invention is a compression packaging method in which a large number of stacked and compressed articles to be packaged are wrapped with a wrapping paper, and the articles to be packaged which are stacked and compressed by a pressure machine are compressed. By pushing out in a direction orthogonal to the compression direction from the part, the one surface facing the delivery side end surface of the package to be compressed and both end surfaces adjacent to the one surface are open to the one surface opening edge of the case receiving case. While wrapping the placed wrapping paper, insert the compressed object to be wrapped from the opening of the case receiver, wrap the three sides of the object to be packed in the case receiver, and wrap the object to be wrapped. The projecting portion of the wrapped wrapping paper that protrudes from the case receiving case is folded to wrap the six sides of the compressed article.

[0008]

In the compression packaging method of the present invention, the articles to be packaged stacked by the press are compressed into substantially regular hexahedrons, and the compressed articles to be packaged are pushed out into the case receiving case to open the case receiving case. The wrapping paper arranged on the edge is naturally rolled up, and when it is set in the case receiving case, the three sides are wrapped with the wrapping paper. Then, the remaining three surfaces of the article to be packaged are folded into a substantially regular hexahedron with good appearance by folding and closing the remaining portion of the wrapping paper.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the structure of a paper bag bundle compression packaging apparatus for carrying out the compression packaging method of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 is a pressurizer, which is rotatably supported in a vertical direction in a main body frame 2 by a support shaft 3 so as to be erected, inclined, and horizontal. This pressurizer 1 is a support rod in which both end plates 4a and 4b are connected to each other.
A flat pressure machine having a machine body 4 composed of 4c, in which a first pressure plate 5 and a second pressure plate 6 are slidably opposed to each other in the machine body 4, The first pressure plate 5 is pressed and slid by the piston of the air cylinder 7, and the second pressure plate 6 is pressed and slid by the piston of the set pressure air cylinder 8 whose pressure is reduced by the regulator.

The pressurizing machine 1 is provided with side guide plates 9 on both sides of the machine body 4 and a lower guide plate 10 on the lower side thereof, and the side guide plates 9 and the lower guide plates 10 guide each other. The first pressure plate 5 and the second pressure plate 6 are slid. In addition, a discharge part 11 of the compressed package is opened at the front part of the lower guide plate 10.

An insert portion 13 for inserting a bundle of paper bags 12 is provided between the first pressure plate 5 and the second pressure plate 6 at the upper part of the pressure machine 1 so as to face the lower guide plate 10. It is open.

Further, an extruding plate is provided on the upper front end of the machine body 4.
14 is provided so as to face the discharge part 11 of the machine body 4, and the push-out plate 14 is attached to the piston 15a of the push-out air cylinder 15 and pushes the object to be packed which is compressed by being moved forward and backward by the piston 15a from the discharge part 11. It is supposed to be released.

The body frame 2 is attached to the machine body 4.
A piston 17 of an air cylinder 16 which is rotatably attached to is pivotally attached, and when the piston 17 advances and retreats, the body 4 is erected, inclined, and horizontal.

Next, 20 is a case receiving case, and the case receiving case 20 is a packaging space between a fixed case plate 21 fixed to one side of the main body frame 2 and the fixed case plate 21.
The movable case plate 23 and the bottom plate 26 fixed to the movable case plate 23 are spaced apart from each other to form a substantially U-shaped upper and side surfaces.
A lower end portion of which is rotatably supported by the main body frame 2,
A piston 25 of an air cylinder 24 rotatably attached to the main body frame 2 is pivotally attached to the movable case plate 23, and the movable case plate 23 is rotated by the advance of the piston 25 to open the receiving case 20. It is like this.

Further, the main body frame 2 is provided with a wrapping paper storage section 28 for storing the wrapping paper 27.

Next, the operation of this embodiment will be described.

As shown in FIG. 2, with the pressurizer 1 tilted so that the set pressure air cylinder 8 side is upward,
Check the bags sequentially manufactured by the bag-making machine and replace defective ones. For example, align 25 paper bags into one bundle, and place the strings attached to the paper bags one by one on the opposite side of the top and bottom of the paper bags. In this state, the paper bag bundle 12 is sequentially loaded from the insertion portion 13. And
The paper bag bundle 12 is held by the side guide plate 9 and the lower guide plate 10 sequentially from the lower first pressure plate 5 side toward the second pressure plate 6, and is stacked orderly.

Next, when the bundle 12 of paper bags reaches the specified amount,
When the air cylinder 7 is operated by a switch operation,
As shown in FIG. 3, the first pressure plate 5 pressed by the piston of the air cylinder 7 moves toward the second pressure plate 6, and the paper bag bundle 12 is separated from both pressure plates 5 and 6. Compress between.

Further, when the compression of the bundle of paper bags 12 progresses to reach the set pressure, as shown in FIG. 4, the second pressure plate 6 pressed by the piston of the set pressure air cylinder 8 depressurized by the regulator. The pressed and compressed paper bag bundle 12 moves while being compressed to the set pressure, and the first pressure plate 5 stops at a predetermined stroke position. At this time, the second pressure plate 6 stops with a slight gap 30 left between the second pressure plate 6 and the end plate 4a, and in this state, the compressed paper bag bundle 12 is separated from the pushing plate 14 and the discharging portion 11 on the front side of the lower guide plate 10. It is located between In addition, at this time, the wrapping paper 27 is placed over the opening edge of the case receiving case 20 while bridging it.

Next, the air cylinder 16 is operated by a switch operation, and the pressurizer 1 is rotated so as to be horizontal as shown in FIG. 5, so that the discharge portion 11 of the pressurizer 1 is placed on the upper surface of the case receiving case 20. The lower surface of the compressed paper bag bundle 12 is in contact with the upper surface of the one wrapping paper 27 arranged on the edge of the opening and facing the opening. In this state, switch operation to set pressure air cylinder 8
The piston is retracted, the second pressure plate 6 moves toward the end plate 4a by a small gap, and the compression between the first pressure plate 5 and the second pressure plate 6 is temporarily released. It becomes a moderate repulsive force.

Next, when the push-out air cylinder 15 is operated by a switch operation, as shown in FIG.
By the push plate 14 pushes the compressed paper bag bundle 12 downward, the paper bag bundle 12 is pushed downward, and is inserted from the top opening of the case receiving case 20 while winding the wrapping paper 27 on both sides.
Paper bag bundle 12 when stored in case receiving case 20
The three sides are wrapped in wrapping paper 27. In this state, the air cylinder 16 is operated by the switch operation to move the piston 17 forward, and as shown in FIG. 6, the pressurizer 1 is rotated from the horizontal state to the inclined state to return to the state of FIG. During the return rotation of the pressurizer 1, a switch is operated to operate the air cylinder 7 to move the first pressurizing plate 5 toward the end plate 4b by retracting the piston, and to set the set pressure air cylinder 8
The second pressure plate 6 is returned to the set position, the pushing air cylinder 15 is further moved, the piston 15a is retracted to return the pushing plate 14, and the next bundle of paper bags 12 is loaded. Prepare Then, the press machine 1 has a bundle of paper bags 12
And the next step of compressing the bundle 12 of paper bags is started.

Next, as shown in FIGS. 6 and 7, a gum tape 31 having a length projecting from both ends of the paper bag bundle 12 is bridged on the upper surface of the compressed paper bag bundle 12 with the adhesive surfaces facing upward and both ends of the gum tape 31. Bend each part along both end faces of the paper bag bundle 12 and fold both ends of the wrapping paper 27 protruding from both side openings of the case receiving case 20 of the paper bag bundle 12 to both end faces of the paper bag bundle 12 to bring the inner surface into contact. Adhere to the duct tape 31. Furthermore, the wrapping paper that covers the bottom surface, both side surfaces, and the top surface of the bundle 12 of paper bags.
The protrusion on the upper surface side of 27 is bent along the end surface of the bundle of paper bags 12 and the inner surface is adhered to the gum tape 31. Then, the portions of the wrapping paper 27 projecting from both side surfaces of the paper bag bundle 12 are folded to the end surfaces of the paper bag bundle 12 and bonded to the gum tape 31, and the six-sided packaging is completed, as shown in FIG. Duct Tape 31
The packaging with the inside is completed. Note that the gum tape 31 is attached from the outside of the seam of the wrapped wrapping paper 27 as needed for reinforcement or the like.

Since the paper bag bundle 12 wrapped in the case receiving case 20 has a repulsive force increasing with time,
As shown in FIG. 3, the air cylinder 24 is operated by a switch operation, the movable case plate 23 is rotated outward by the advance of the piston 25, the case receiving case 20 is opened, and the wrapped paper bag bundle 32 is taken out. When the switch is operated, the air cylinder 24 is operated to retract the piston 25, and the movable case plate 23 is returned so that the receiving case 20 receives the next bundle of compressed paper bags 12. Next, as shown in FIG. 4, one wrapping paper 27 stored in the wrapping paper storage unit 28 is taken out and placed in the opening on the upper surface of the case wrapping case 20 to prepare for the next wrapping paper case. .

[0025] It should be noted that the packing can be strengthened by sticking the gum tape to the outside for reinforcement, and it is easy to add a flat string bundling as a handle for transportation.

As described above, when all the objects to be packed such as the compressed paper bag bundle 12 are pushed out from the pressing machine 1, the pressing machine 1 is tilted toward the position where the paper bag bundle 12 is inserted so as not to disturb the packaging work. While the first and second pressure plates 5,
6. By returning the push-out plate 14, the next paper bag bundle can be loaded and the compression process can be started. The wrapping paper wrapping process, the completed paper bag bundle 12 can be taken out, and the next wrapping paper 27 can be attached. Since they can be performed in parallel at the same time, work time is halved and work efficiency is doubled.

Another embodiment will be described with reference to FIG.

In this embodiment, the first and second pressure plates 5 and 6 are formed by the belt conveyors 35 and 36, and both case plates 21 and 23 of the case receiving case 20 are formed by the belt conveyors 38 and 39. In this structure, the same structural parts as those of the other embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 8, a drive shaft 41 having a key groove rotated by an electric motor 40 in the front-rear direction is axially supported in the machine body 4 in parallel with the support rod 4c, and the drive shaft 41 is axially engaged by key engagement. Miter gears 44, 45 are provided on bevel gears 42, 43 that are movable in the direction of rotation and are coupled in the direction of rotation, at the upper end of a machine frame (not shown) of belt conveyors 35, 36 that are provided in the machine body 4 so as to be movable in the front-rear direction. Conveyor belts 47 and 48 are wound by a drive roller that rotates integrally with the gears 44 and 45 and a roller 46 that is provided at the lower end of the machine frame.

Further, the case receiving case 20 has a fixed belt conveyor 38 having a feeding portion 51 for feeding vertically to one side.
And a movable belt conveyor 39 having a feeding section 52 for vertically feeding, which is opposed to the feeding section 51 of the fixed belt conveyor 38.
Reference numerals 8 and 39 are driven by a drive roller 53 driven by an electric motor 56 and a drive roller 54 which is linked to the drive roller 53 by a gear mechanism or the like. Both belt conveyors 38, 39
Is driven at the same speed at the same time as the belt conveyors 35 and 36 of the press 1 when the paper bag bundle 12 is fed.

The movable belt conveyor 39 is rotatable in the direction away from the fixed belt conveyor 38 with the shaft center of the drive roller 54 as the fulcrum 23a.

The belt conveyors 38, 39 are wound around and driven by rollers 55 which are axially supported by machine frames (not shown).

Further, the belt 50 of the movable belt conveyor 39 is provided with the bottom plate 26 of the case receiving case 20.

In this embodiment, when the compressed paper bag bundle 12 is sent to the case receiving case 20, the belt conveyors 35, 36 and the belt conveyors 38, 39 of the case receiving case 20 are driven by driving the electric motors 40, 56. The compressed paper bag bundle 12 is unrolled from the discharging unit 11 and is further sent between the belt conveyors 38 and 39 of the case receiving case 20 while being compressed. Then, as in the above embodiment, the wrapping paper 27
Wrap up and complete the packaging. Then the air cylinder
The piston 25 of 24 is advanced to rotate the movable belt conveyor 39 to open it, and the bundle of wrapped paper bags 32 is taken out.

In this embodiment, when it is sent to the case receiving case 20 after the compression process, the second pressure plate 6 is moved to the end plate 4a side to compress the compressed paper bag bundle 12 as shown in FIG. There is no need to loosen, and the compression in the packaged state is increased.

Further, in each of the above-mentioned embodiments, the discharge portion 11 is formed at the front end of the lower guide plate 10 of the press 1, but the lower guide plate 10 normally covers the entire lower surface and opens and closes when the compressed paper bag bundle 12 is discharged. Compressed paper bag bundle 12 if slidable as possible
No need to move.

Further, in the above-described embodiment, the discharging portion 11 of the pressurizing machine 1 is formed downward so as to receive the compressed package from the upper surface of the case receiving case 20.
It is also possible that the case receiving case 20 receives the compressed article to be packaged from the side surface with the discharge direction of the package being horizontal and the packaging of the compressed article is carried out continuously on the conveyor.

The size of the wrapping paper in the case of packing the stringed paper bag bundle is determined by the hexahedral size of the compressed paper bag bundle,
The dimensions are as follows.

Wrapping paper length = (bag width + compressed thickness) × 2 Wrapping paper width = compressed thickness + bag length + handle protrusion dimension Gum tape size = bag length + handle protrusion dimension + bag width × 2-compressed thickness / 2 In the above-mentioned embodiment, the method of packaging a bundle of paper bags has been described.
The present invention can be applied not only to a bundle of paper bags but also to folded and folded paper products such as signatures and booklets, and textile products such as clothes, blankets and duvets which are packed.

[0040]

According to the present invention, a substantially regular hexahedral object to be strongly compressed by a pressurizer is wrapped with a piece of wrapping paper from the top opening of the case receiving case which faces the discharge part of the pressurizer. When it is inserted and completely fit in the case receiving case, the three sides are wrapped and wrapped naturally,
By folding the protruding portion of the wrapping paper protruding from the case receiving case along the ridge line of the object to be packaged and performing six-sided packaging, a strong and accurate hexahedron is packaged.

[Brief description of drawings]

FIG. 1 is a side view of a packaging device showing an embodiment of the present invention.

FIG. 2 is a side view showing a state in which a packaged item is carried into the packaging apparatus and when packaging is completed.

FIG. 3 is a side view showing a state during a compression process in which a set number of articles to be packaged are loaded into the pressurizing machine and compression is started.

[Fig. 4] Same as above, with the compression of the pressurizer progressing, the first pressure plate stops at the compression limit position, the second pressure plate stops at the set pressure position, and at the opening edge of the case receiving case. It is a side view when a wrapping paper is attached.

FIG. 5 is a side view in the process state of inserting the packaged object compressed by the same pressurizing machine into the case receiving case.

FIG. 6 is a side view showing the states of the step of loading the article to be packaged in the pressure machine and the wrapping paper wrapping step in the same as above.

FIG. 7 is an explanatory view of a step of adhering a wrapping paper wrapping an object to be wrapped by pulling out a fixed size from the winding of the gum tape in the same packaging step.

FIG. 8 is a side view of a packaging device showing another embodiment of the present invention.

[Explanation of symbols]

 1 Pressurizer 12 Bundle of paper bags for wrapping 20 Wrapping case 27 Wrapping paper

Claims (1)

[Claims] 1. A compression packaging method for packaging a large number of compressed articles to be packed with a wrapping paper, which comprises stacking and compressing the articles to be packed by a pressure machine in a direction orthogonal to the compression direction. , A compressed object to be packed while winding the wrapping paper arranged at the opening edge of the one surface of the case receiving case in which one surface facing the delivery side end surface of the object to be compressed and both end surfaces adjacent to the one surface are open Inserted through the opening of the case receiving case, wrap the three sides of the packaged item in the state that the packaged item is housed in the case package case, and wrap this package item A compression wrapping method, characterized in that the projecting portion of a wrapping paper is folded to wrap six sides of a compressed article.