JPS61195A - Method of removing labels of bottle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for removing labels from bottles. To put it simply, labels (labels) made of heat-shrinkable polymeric materials such as glass bottles etc.

Stenka, Renotil...) from its attachment (the body of the bottle) using hot wire (first invention) or hot air injection (second invention).
The present invention relates to a method of dividing and cutting the material by heating it with hot air, shrinking it by utilizing its shrinkability, and removing it. As mentioned above, this invention consists of the first invention and the second invention.

(Prior art) In recent years, labels have been added to the body of glass bottles for the purpose of displaying the contents and advertising the contents of bottles for beverages and foodstuffs, instead of gluing or adhering them. material klI+
We have come to the point where we have adopted labels that can be used as materials. Then, after using these bottles for beverages, seasonings, etc., empty bottles are washed,
The current situation in the industry is to reuse the label after going through a sterilization process, but in the case of labels made of the heat-shrinkable polymer material mentioned above, this peeling and removal is done manually. Therefore, this manual process required about 1 minute per bottle, which was advantageous because it was expensive and the merit of reuse was low.

(Problems to be Solved by the Invention) The problems to be solved by the present invention are as described above.According to the label removal method using hot wire or hot air jetting according to the present invention, 1. It can be peeled off in 5 to 2 seconds, and can be twisted more than 80 times more efficiently than when done by hand, and the benefits of recycling and using bottles can be greatly appreciated by the general public. be.

(Means for Solving the Problems) This invention (the first invention and the second invention will be explained in detail based on the drawings. Figures 1 to 7 are the drawings of the first invention. Fig. 1 is a front view, Fig. 2 is a plan view, Fig. 3 is a side view, Fig. 4 is a sectional view, Fig. 5 is a sectional view of the main part, and Fig. 6 is a plan view of the main part. , FIG. 7 is a side view of the main part, and FIG. 8 is a sectional view of the second invention.

First, the first invention will be explained.

(1) is a bottle, and (2) is a label whose base material is a heat-shrinkable polymer material attached to the body of the bottle (1). This invention is characterized in that the labels (2) are peeled off and removed using hot wire.

(3) is carried out by a conveyor chain, as shown in Figure 2.
Being lined up. This conveyor chain (3) is mounted on a chain/rail (5) on a frame (6).

(4) is a feed pawl υ, and as shown in Fig. 4, the conveyor chain (3) is suitably set so that the bottle (1) can be moved in the direction in which either the bottle opening or the bottle bottom is in front. It is fixed at the pitch position.

Therefore, when [(1) is placed in a horizontal position on two rows of conveyor chains (3), it is forcibly conveyed by the feed pawls (4) provided at appropriate pitches.

Next, in Fig. 2, (7) is a hot forging, which is configured to be an electric heating plate. The electric heating plate (8) is integrated with the holding shaft part (9), and the holding shaft part (9) has a vertical shaft α0 fully provided below, and the bottom metal is attached to the bearing αQ, 00. The arm is designed to be able to vibrate horizontally following the outer shape of the transported bottle (1), and is constantly pulled by an arm tension spring integrated with the holding shaft (9).
The tip of the hot trowel (7) follows the movement of the bottle (1) and is always in close contact with the outer surface of the bottle (1), centering on the point 9). The stopper α■ is provided so that the position of the tip of the hot iron (7) (see Figures 6 and 7) can be controlled and adjusted by the stopper α. (hereinafter referred to as a thermoscope device). Operation) With the above configuration, as the bottle (1) advances, the hot forging (7) begins to come into contact with the labels (2), and the heated tip (7a) of the hot forging (2) [V-shaped blade. 7th
Refer to the diagram (arrow view of Figure 6) Labels (2) are V from IK.
It is softened and melted into a shape, and as the bottle (1) progresses, the bottle (1)
Two grooves are formed on the labels (2) by hot forging (7) provided at opposing positions. In other words, the labels (2) are heat-shrinkable by melting the labels (2) in streaks by emitting heat rays, but since the area around the grooves shrinks due to heat, the area between the counterfeit sides of the V-groove The expansion is
A state is reached where the labels (2) are completely cut.

Labels (21) are divided into two by these two grooves, but because they are heat-shrinkable, they shrink to the shape of the bottle, so they do not peel off naturally.

Therefore, after this step, as shown in Fig. 5,
When heated with hot air from nozzle 0→, contraction begins in the Y and Y directions with χ-y as the axis, and the bells (2) are peeled off from the bottle (1) like the labels (2). I'll go. In the example, four hot forgings (7) are provided,
When four V-grooves were formed and then heated with hot air as described above, the effect was greatly enhanced and they were easily peeled off.

Next, the second invention will be explained. The second invention is as shown in Figure 8, in which hot air of 300°C or more is slit (b) and (b) while conveying the ``1it (1) in a horizontal position.
When sprayed directly onto labels (2) from
By cutting 2) and shrinking the entire label (2), peeling and removal can be easily performed.

In addition, in FIG. 8, (1) is a bottle, (3) is a conveyance chain, and a7) is a nozzle. (b), 7 risotto are shown at @.

(Effects) This invention has many advantages compared to conventional manual methods, including higher efficiency, lower cost, and the ability to reuse bottles.

[Brief explanation of the drawing]

The drawings show embodiments of the invention, and Figures 1 to 7 are of the first invention. Figure 1 is a front view, Figure 2 is a plan view, and Figure 3 is a side view. , Fig. 4 is a sectional view, Fig. 5 is a sectional view of the main part, Fig. 6 is a plan view of the main part, Fig. 7 is a side view of the main part, and Fig. 8 is a cross-sectional view of the main part. FIG. (1) is a bottle, (2), (2) is a label, (3) is a conveyor chain, (4) is a feed claw, (5) is a chain rail, (6) is a main body frame, (7), ( 75 is a thermal mirror, (7a) is a thermal mirror (7), the tip of the lune, (8) is an electric heating plate, (9) is a holding shaft, aQ is a bearing, αV is an arm, (
2) is a tension spring, α east is a stopper, α → is a nozzle, aQ
is a vertical shaft, aQ is a heat-resistant sliding bearing, and αη is a nozzle.

Claims (1)

[Claims] 1. Labels whose base material is a heat-shrinkable polymeric material are cut into pieces from a bottle as an accessory using a hot wire, and the labels are further heated with hot air to reduce the shrinkability. A method for removing labels from bottles, characterized in that the labels are shrunk and removed from the bottles. 2. The method for removing labels from bottles as set forth in claim 1, which utilizes a hot trowel device that is brought into close contact with an electric heating plate. 3. Labels whose base material is a heat-shrinkable polymeric material are cut into parts by a jet of hot air from a bottle as an accessory, and the labels are further heated with hot air to shrink them using their shrinkage properties. A method for removing labels from bottles, the method comprising: removing labels from the bottles;