JPH0343313A - Constricting method for sheet to be wrapped on cylindrical body - Google Patents

Abstract

PURPOSE:To wrap and fix a sheet assuredly with a good appearance without disturbing the sheet while twisting a part of the sheet which is located higher than the truncated cone shaped head part by a method wherein the port of the sheet, which is located higher then the head part of a cylindrical body, is constricted around the central axis and clamped, end under a condition where tension is added further, the part of the sheet is twisted. CONSTITUTION:A bottle 2, on which a porous air-permeable sheet for packaging 1 is wrapped, is held by an appropriate holding measure, and at the same time, is pinched by a rotation driving roller 3 and on idling roller 4. Then, upper and lower constricting boards 5a, 5b are brought closer toward the central axis of the bottle 2, and the sheet 1 is constricted toward the center and clamped of the central part, and is stretched in the central axis extending direction of the head part of the bottle 2 as shown by arrow B to give tension to the sheet. When the bottle 2 is rotated together with the sheet 1 by the rotation driving roller 3, only 8 part of sheet is, which is located higher than the bottle head, is twisted, and a port of sheet 1b, which is located of the bottle shoulder part, is constricted straight along the conical shape. Then, the twisted part of sheet 1a is bent and fixed by an appropriate band material.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a method of handling breathable sheets such as highly breathable paper, cushion sheets, porous sheets, etc. The present invention relates to a method of attaching a sheet to a cylindrical body having a cylindrical body and tightening and fixing the sheet.

The method of the present invention is particularly suitable for packaging glass bottles, but is not limited thereto.

In addition, the wrapping sheet according to the present invention is not limited to paper for packaging, but also general sheet materials, Japanese paper for various uses, shrink paper, mesh film, cloth, plastic, wire mesh, and other porous materials. It is applicable to all continuous sheets.

[Prior Art] When packaging glass bottles, etc., thick, porous, and highly air permeable paper is used to increase cushioning properties and protect the bottle. Bottles that contain various beverages or alcoholic beverages and are made into products at factories are packaged for cosmetic and protection purposes in the final process. A breathable packaging sheet is wrapped cylindrically around the bottle. Next, twist and bend the sheet on the upper side of the head (retaining part) and fix it to the side of the bottle's head with tape or the like.

Conventionally, the winding and fixing work of sheets in the packaging process for such bottles has been performed manually by workers.

[Problems to be Solved by the Invention] In the conventional method of wrapping and fixing sheets, when twisting the sheet at the head of the bottle, the sheet at the conical shoulder part is twisted into an open position, which causes the packaging to be disturbed and ensured. It could not be fixed properly and the appearance was also unfavorable.

In addition, manual packaging work is troublesome and has poor production efficiency.

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and the present invention has been made in view of the above drawbacks of the prior art.When a sheet is wrapped around a cylindrical body having a truncated conical head and fixed by squeezing, the sheet on the conical shoulder part is twisted. The purpose of cylindrical wrapping is to provide a sheet squeezing method that securely fixes the sheet without disturbing the shoulders by twisting the sheet only on the upper side of the head without disturbing the shoulder.It has a good appearance and can be automated more easily. shall be.

[Means for Solving the Problems] In order to achieve the above object, in the method of the present invention, a sheet is wound around a cylindrical body having a truncated conical head, and the head of the cylindrical body is wound into a cylindrical shape. Squeeze the upper sheet toward the central axis of the cylinder, clamp it at the center, pull the clamp part away from the head of the cylinder along the central axis of the cylinder, and apply tension to the sheet. The cylindrical body is rotated together with the sheet relative to the clamp portion under tension, thereby twisting the sheet on the upper side of the cylindrical body head.

[Operation] By clamping the sheet on the central axis of the cylinder and twisting it while applying tension, the sheet engages the peripheral edge of the truncated conical head, and only the upper side of the sheet is twisted, causing the shoulder to tighten. The sheet is squeezed straight along the conical shape without being twisted.

[Example] FIG. 1 is a schematic diagram of an apparatus for carrying out the sheet squeezing method according to the present invention. A bottle 2 wrapped with a porous air-permeable sheet 1 for packaging is attached to and held by a suitable holding means (not shown) and is held between a rotating drive roller 3 and an idling roller 4. Rotation drive roller 3
can be rotated in the direction of arrow J, and the idle roller 4 can be moved up and down as shown by arrow v1W. Further above the truncated conical head of the bottle 2 (on the side in the direction of extension of the center axis of the bottle), there is a pair of aperture plates 5a that can be moved up and down as shown by arrows A and F.
5b is provided. The pair of aperture plates 5a and 5b are movable in the direction of the central axis of the bottle 2 as shown by arrows B and G. This pair of aperture plates 5a.

5b is further rotatable in the horizontal plane as indicated by the arrow H. There is also an arrow E on the upper part of the central axis extension side of bottle 2.
, a holding cap 6 movable in the central axis direction as shown in K
Equipped with

Next, the procedure of a sheet squeezing method using the apparatus having the above configuration will be explained below with reference to FIG.

First, the idling roller 4 (FIG. 1) is raised in the direction of arrow V to fix the bin 2.

Next, the upper and lower aperture plates 5a and 5b are moved toward each other in the direction of the central axis of the bottle 2 as shown by arrow A, and the sheet 1 is clamped at the center of the aperture toward the center (dotted line in Fig. 2 (a)). . Next, the clamped sheet is pulled upward in the direction of the head of the bin 2 (in the direction of extension of the central axis) in the direction of arrow B to apply tension to the sheet.

The rotary drive roller 3 (FIG. 1) is rotated in the direction of arrow J while tension is applied, and the bin 2 is rotated together with the sheet 1 in the direction of arrow C. As a result, Fig. 2(b)
As shown in , only the sheet 1a on the upper side of the bottle head is twisted, and the sheet 1b on the shoulder of the bottle is not twisted and is squeezed straight along the conical shape.

After twisting a predetermined number of rotations, the rotary drive roller 3 is stopped, and the aperture plates 5a and 5b are rotated 90 degrees as shown by arrow D (Fig. 1).
``Fold the sheet 1a at the twisted portion by rotating it.Next, the holding cap 6 covers the twisted sheet 1a and presses it with a pressing rod (FIG. 2(C)).

Open the aperture plates 5a and 5b (arrow F), then release the tension and return to the original position (arrow H).

Next, the twisted sheet la of the bottle head is fixed with tape 8, a rubber band, a band, or other suitable banding material (FIG. 2(d)).

FIG. 3 shows the flow when the above-described method of squeezing a breathable sheet is applied to an automatic bottle packaging process.

FIG. 3(a) shows the step of taking out the breathable sheet 1. An adhesive tape 12 is attached to the air-permeable sheet 1, and the uppermost air-permeable sheet 1 of the sheet bundle is taken out using the take-out lever 13 via the adhesive tape 12.

The breathable sheet 1 taken out is transferred to a wrapping position (FIG. 3(b)). The breathable sheet 1 is released from the take-out lever 13 at a predetermined position on the stage 17. The breathable sheet 1 is sent to a wrapping machine and automatically wrapped around the bottle 2. In this case, the adhesive tape 12 attached to the breathable sheet 1 may be cut and removed by appropriate means. When double-sided adhesive tape is used, the adhesive tape can be used as it is for fixing after wrapping the breathable sheet.

Next, using the present invention, as described above, the tip of the sheet 1 is clamped by the aperture plate 5 and tension is applied, and the bin 2 is rotated together with the sheet 1 to twist the sheet 1 (see Fig. 3). (C)).

[Effects of the Invention] As explained above, in the present invention, the sheet above the head of the cylindrical body is squeezed and clamped at the central axis portion, and the sheet is twisted while applying tension. The sheet on the upper side of the head can be twisted, and the sheet on the conical part can be squeezed straight along the conical shape without twisting, ensuring a good appearance without disturbing the sheet. The wrapping can be fixed. Additionally, packaging work can be easily automated.

[Brief explanation of drawings]

Figure 1 is a schematic configuration diagram of an apparatus for carrying out the method of the present invention, Figure 2 is an explanatory diagram showing the flow of the procedure of the method of the present invention, and Figure 3 is a flowchart of the packaging process using the method of the present invention. It is an explanatory diagram. 1... Breathable sheet, 2... Bottle, 5a, 5b
...Aperture plate.

Claims (1)

[Claims] Wrapping a sheet around a cylindrical body having a truncated conical head, squeezing the cylindrically wound sheet on the upper side of the cylindrical body head toward the central axis of the cylinder, and clamping it at the center; The clamp part is pulled in a direction away from the head of the cylinder body along the central axis of the cylinder, and tension is applied to the sheet, and while the tension is applied, the cylinder body is rotated together with the sheet with respect to the clamp part. A method for squeezing a sheet wrapped around a cylindrical body, characterized in that the sheet on the upper side of the head of the cylindrical body is twisted.