JPH0565113A - Packaging device - Google Patents

Abstract

PURPOSE:To adjust the heights of a content feeding unit and a guide which is used for edge folding simultaneously in response to the change of the height of a box shaped content. CONSTITUTION:By vertically moving front plates 2b, 2b by operating an adjusting unit 3, the position of the lower ends of the front plates 2b, 2b is adjusted to the vicinity of the lower surface B5 of a box shaped content B which is located second from the bottom, and the front side of the box shaped content B at the lowest position only is opened. At the same time, the position of a guide 6 which is used for edge folding is adjusted to the upper surface B4 of the box shaped content B on a transfer path 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging device for wrapping a packaging sheet along the outer surface of a box-shaped content, and more specifically, one box-shaped content stacked in a content supply section from the bottom. The packaging sheet is wound horizontally to the winding process one by one, and the packaging sheet is wrapped in a rectangular tube shape from the left and right side surfaces of the box-shaped contents along the side edges of the transfer path for horizontally transporting the box-shaped contents. The present invention relates to a sheet provided with a guide for folding the protruding end of the sheet along the side surface.

[0002]

2. Description of the Related Art Conventionally, as a packaging apparatus of this type, as disclosed in, for example, Japanese Utility Model Publication No. Sho 59-4887, a plane L-shape that abuts against a front corner of box-shaped contents stacked in a contents supply unit. A pair of left and right front positioning frames formed on the mold,
A pusher is provided horizontally along the bottom surface of the content supply unit by vertically arranging a rear positioning frame that abuts the rear surface of the box-shaped content so that the stacked box-shaped content can move only in the vertical direction. By moving forward, only the bottom of the stacked box-shaped contents is pushed out to the body-wrapping process, and the two or more box-like contents left from the bottom are naturally dropped, and the packaging sheet is body-wrapped in the body-wrapping process. While horizontally moving the wrapped box-shaped contents along the transfer path, the projecting ends of the packaging sheet protruding from the left and right side surfaces into a square tube shape are folded along the side surfaces, and the box-shaped contents are further folded. If the left and right length dimensions of the contents are changed, the left and right spacing of both front positioning frames and the left and right spacing of the guides used for body winding and ear folding can be adjusted accordingly by operating the length adjustment handle. Change at the same time, box-shaped contents If the vertical height is resized are those changing the height position of the guide used in the folding ear Correspondingly by operating the height adjustment handle.

[0003]

However, in such a conventional packaging device, when the lowermost box-shaped contents are pushed out from the contents supply section by the pusher, two or more pieces from the bottom are rubbed by friction. To prevent the box-shaped contents from moving forward,
The front plates of both front positioning frames are brought into contact with the front surfaces of two or more box-shaped contents from below to open only the front of the lowest box-shaped contents. Since it is fixedly deployed to the machine frame via the, when the vertical height of the box-shaped contents is changed, the height position of the guide used for folding the ears is changed by operating the height adjustment handle. In addition, both front positioning frames must be replaced manually so that the lower end of the front plate is located near the lower surface of the second box-shaped contents from the bottom, and this replacement work is troublesome and height adjustment is difficult. There is a problem that it is difficult to do and is inconvenient to use.

In view of the above conventional circumstances, it is an object of the present invention to simultaneously adjust the heights of the contents supply section and the guides used for the edge folding in response to the height change of the box-shaped contents.

[0005]

The technical means taken by the present invention to solve the above-mentioned problems are as follows: A front plate that abuts against the front surface of two or more box-shaped contents from the bottom stacked in the contents supply section. And the transfer path are supported so as to be vertically movable with respect to the machine frame, and the transfer path is supported so as to be vertically movable with respect to the machine frame. The front plate and the transfer path are linked to the adjusting section to operate the adjusting section. Accordingly, the front plate and the transfer path are vertically moved by the same size.

[0006]

According to the above technical means of the present invention, the lower end of the front plate is positioned near the lower surface of the second box-shaped contents from the bottom by operating the adjusting portion to move the front plate up and down. In addition, only the front of the lowest box-shaped contents is opened, and at the same time, the guide used for the edge folding and the upper surface of the box-shaped contents on the transfer path are aligned.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In this embodiment, as shown in FIGS. 1 and 2, after the packaging sheet A is horizontally conveyed from the sheet supply section 8 to the elevated position of the elevator 9, the box-shaped content B is conveyed from the content supply section 1. By horizontally transporting the packaging sheet A to a predetermined position on the packaging sheet A and lowering the elevator 9 while the packaging sheet A and the box-shaped contents B are in vertical contact,
Both ends A1 and A2 of the packaging sheet A are abutted against the upper surfaces 10a and 10a of the pair of front and rear body folding guides 10 and 10 and folded up in a U shape along the front and rear surfaces B1 and B2 of the box-shaped contents B. One end A of the packaging sheet A folded in a cylinder and then folded forward by advancing the inner folding guide 11 horizontally.
1 is folded along the upper surface B4 of the box-shaped contents B, and then the box-shaped contents B is pushed by the pusher 12, so that the other side end A2 of the folded packaging sheet A is pushed to the outer folding guide 13. It is applied and folded backward, and is superposed on the outer side of the one side end A1 and wound around the body, and at the same time, is supplied onto the transfer path 5.

The contents supply section 1 has left and right bottom plates 1a, 1a whose bottom faces extend in the left-right direction orthogonal to the transport direction of the box-shaped contents B.
And the central bottom plate 1b are divided into three parts, and the left and right bottom plates 1a, 1a are supported horizontally and horizontally with respect to the machine frame C, respectively, and the central bottom plate 1b is horizontal with respect to the machine frame C in the longitudinal direction. The left and right bottom plates 1a, 1a are movably supported, and the connecting plate 1c is horizontally extended from the left and right bottom plates 1a, 1a to the center bottom plate 1b.
The left and right bottom plates 1a, 1a are interlocked only in the front-rear direction with the forward-backward movement of.

The left and right bottom plates 1a, 1a are the front corners B1 ', B of the box-shaped contents B stacked on the bottom surface of the contents supply unit 1.
The front L-shaped front positioning frames 2a, 2a which come into contact with 1 'are vertically movably supported and supported, and these front positioning frames 2'
2 or more box-shaped contents B piled up in a, 2a ...
Front plates 2b, 2b that are in contact with the front surface B1 ...

Further, on the upper surfaces of the left and right bottom plates 1a, 1a, pushers 4 and 4 which face the stacked lowest box-shaped contents B and which are intermittently operated are provided side by side.
By the intermittent operation of 4, only the lowest box-shaped contents B are horizontally conveyed to a predetermined position on the packaging sheet A conveyed to the elevated position of the elevator 5.

The central bottom plate 1b is provided with a rear positioning frame 2c which stands on the bottom surface of the contents supply section 1 and which abuts on the rear surface B2 of the box-shaped contents B.

The transfer path 5 is provided with a plurality of screw legs 5a ... Standing vertically from the lower surface of the transfer frame 5 such that the screw legs 5a. Road 5
While keeping the upper surface of the machine horizontal, the machine frame C is supported so as to be movable up and down, and each screw leg 5a and the adjusting unit 3 described later are linked.

The adjusting portion 3 is linked to the lower ends of the front positioning frames 2a, 2a described above through the wires 3a, and at the same time, the screw legs 5a on the lower surface of the transfer path 5 and transmission members 3b such as chains. , And the manual handle 3c as an operating means is linked thereto, and the front positioning frames 2a, 2a and the screw legs 5a are moved up and down by the same size by rotating the manual handle 3c.

The adjusting portion 3 is not limited to the one shown in the drawing, but screw rods are respectively screwed to the lower ends of the front positioning frames 2a, 2a so as to be able to move up and down, and a manual handle 3c is provided, for example, via a spring shaft. Manual handle 3c
Is operated to move the front positioning frames 2a, 2a up and down, or as an operating means, a motor is linked instead of the manual handle 3c, and the front positioning frames 2a, 2a and the screw legs 5a ... You may move up and down by each dimension.

At the left and right side edges of the transfer path 5, the overhanging ends A3 of the packaging sheet A protruding from the left and right side surfaces B3 of the box-shaped contents B placed on the upper surface of the transfer path 5 are folded. The guide 6 used for this selvage is
In the case of the present embodiment, a vertically movable folding guide 6a facing the central portion of the lower edge A4 of the overhanging end A3, and a pair of horizontally movable contact and separation facing the front and rear side edges A5 and A5, respectively. Folding guides 6b, 6b, a fixed return guide 6c that folds down to a horizontal position in opposition to the folded up upper edge A6, and an upper edge A6 that folds down to the horizontal position.
And a vertically movable folding guide 6d facing the

Of these guides 6, the folding guide 6
a and a pair of front and rear folding guides 6b, 6b and a lowering guide 6d are moved up and down in conjunction with the upper surface of the transfer path 5 to come into contact with the upper surface B3 of the box-shaped contents B provided above the transfer path 5. Only the return guide 6c is connected to the opposing upper guide 7 to fix the upper guide 7 and the return guide 6c regardless of the vertical movement of the upper surface of the transfer path 5.

Next, the operation of such a packaging device will be described.

When the vertical height dimension of the box-shaped contents B is changed, if the manual handle 3c of the adjusting section 3 or the motor is correspondingly operated, the wire 3a moves as shown in FIG. As the screw legs 5a ... Rotate, the front positioning frames 2a, 2a and the front plates 2b, 2b and the transfer path 5
Of the front plates 2b and 2b are aligned near the lower surface B5 of the second box-shaped contents B from the bottom, and the front of the lowest box-shaped contents B is moved. Only the upper surface of the transfer path 5 and the upper guide 7 are opened.
The upper and lower intervals of the guide are adjusted, and the guide 6 is used for folding the ears.
And the upper surface B4 of the box-shaped contents B on the transfer path 5 are aligned.

When the right and left length dimensions of the box-shaped contents B are changed, the left and right bottom plates 1a,
Both or only one of the guides 1a is moved in the left-right direction, and at the same time, both or one of the guides 6 used for the edge folding disposed on the left and right side edges of the transfer path 5 is moved in the left-right direction. Adjust and move.

Further, in this embodiment, as shown in FIG. 2, when the box-shaped contents B rolled up from the winding process are supplied onto the transfer path 5, the folding guide 6a rises to the center of the lower edge A4. The parts are folded up along the left and right side surfaces B3 of the box-shaped contents B, and after the folding up guides 6a are lowered, the front and rear folding guides 6b, 6b start contacting with each other and the front and rear side edges A
At the same time that 5, 5 are folded along each side surface B3 of the box-shaped contents B, the upper edge A6 is folded up in a substantially triangular shape.

After that, when the box-shaped contents B horizontally move and pass through the return guide 6c, the folded upper edge A6.
Is folded down to the horizontal position, and then, when the box-shaped contents B horizontally move to the folding guide 6d, the horizontal movement of the box-shaped contents B is temporarily stopped and the folding guide 6d descends to move to the upper edge A6. Is folded down along each side surface B3 of the box-shaped contents B, and when the protruding length of the upper edge A6 is longer than the height dimension of the box-shaped contents B, the tip A of the upper edge A6 is
6'is folded along the lower surface B5 of the box-shaped contents B, and the edge folding is completed.

In the embodiment shown above, the packaging sheet A and the box-shaped contents B are conveyed to the elevated position of the elevator 9 and folded up into a U-shape when the elevator 9 descends. Instead, the packaging sheet A and the box-shaped contents B may be conveyed to the lowered position of the elevator, and the elevator 9 may be lifted to fold the inverted U-shape to form a cylinder fold.

Further, the structure of the edge folds and the folding order of the edge folds are not limited to those shown in the drawings. For example, a lower folding guide may be provided separately from the folding guide 6d, or the folding order of the edge folds may be reversed upside down. good.

Since the present invention has the above-mentioned structure, it has the following advantages.

1. By operating the adjustment part to move the front plate up and down, the lower end of the front plate is aligned near the lower surface of the second box-shaped content from the bottom, and only the front of the lowest box-shaped content is positioned. At the same time as the opening of the box, the guide used for folding the ears and the upper surface of the box-shaped contents on the transfer path are aligned. The height of the guide used for can be adjusted at the same time.

Therefore, when the vertical height of the box-shaped contents is resized, the front and rear positioning is manually performed in addition to changing the height position of the guide used for the folding by operating the height adjusting handle. Compared to the conventional one that requires changing the height position of the front plate by exchanging the frames, the manual replacement work of both front positioning frames is eliminated, and the height adjustment is simplified and usability is improved.

[Brief description of drawings]

FIG. 1 is a partial partially cutaway perspective view of a packaging apparatus showing an embodiment of the present invention, showing a partial enlargement of a main part in a state without a box-shaped content.

FIG. 2 is a perspective view showing a packaging process.

[Explanation of symbols]

A packaging sheet A3 overhanging end B box-shaped contents B1 front B2 rear B3 side C machine frame 1 contents supply unit 2b front plate 3 adjustment unit 5 transfer path 6 guide used for ear folding

Claims (1)

[Claims] 1. The box-shaped contents piled up in the contents supply section are horizontally moved one by one from the lowest position to a winding process to wind a packaging sheet, and the wrapped box-shaped contents are conveyed horizontally. In the packaging apparatus, which is provided with a guide along the side edge of the transfer path, which folds the protruding end of the packaging sheet projecting from the left and right side surfaces of the box-shaped content in a rectangular tube shape along the side surface, The front plate that is in contact with the front surface of two or more box-shaped contents stacked from the bottom is vertically movably supported on the machine frame, and the transfer path is vertically movably supported on the machine frame. Then, the packaging device, wherein the front plate and the transfer path are linked to the adjusting section, and the front plate and the transfer path are moved up and down by the same size in accordance with the operation of the adjusting section.