JPH04102561A - Protective method for mouth of glassware - Google Patents

Abstract

PURPOSE:To carry out the glassware packaging held down to the minimum necessary at a low cost and supply the glassware to consumers at a low price and in safety by a method wherein a heat shrinkable film ring is fitted over the mouth part of glassware and heated to cover the same with the shrunk film. CONSTITUTION:Each of preformed shrink film rings 1 is fed from above a tumbler 2 on a moving conveyor 3 at a production line to be fitted over the mouth part of each tumbler 2. These rings, together with the tumblers 2, are carried extending 3-10 mm beyond the upper end of the tumbler 2 and retained by a guide rail 4 and the shrink film rings 1 are shrunk in a heating furnace 5 to closely contact the mouth part of the tumbler 2 so as to cover its side and top face therewith. By covering the top and side face of the mouth part of such glassware with the film, the mouth of the glassware, the weakest part thereof, can be prevented from being brought into an adjustable contact with other glass, there is no need to use partition cartons or individual boxes and the glassware can be easily stacked and automatically packaged easily.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention Industrial Application Field The present invention relates to a method for protecting the opening of glass products during distribution processes such as storage, transportation, loading and unloading of glass products. As for packaging, single boxes made of cardboard or corrugated cardboard rings, boxes of six boxes with partitions, etc. were used. The purpose of using single boxes, whistles with partitions, etc. is to prevent glass products from coming into contact with each other, thereby preventing damage to the glass due to vibration or impact during transportation.

Problems to be Solved by the Invention Conventionally, in order to transport glass products from a factory to a retail store without damaging or scratching them as described above, a single cardboard or cardboard ring box, Six-piece boxes with compartments were used. However, boxes made of paper such as cardboard or cardboard are expensive.

Furthermore, consumers are being forced to purchase something completely useless and useless along with the glass. In terms of production noise, it takes a lot of manpower to pack glass products into boxes, and improvements in packaging formats would be a major 11.
It was said to be a topic.

DESCRIPTION OF THE INVENTION Means for Solving the Problems The present invention solves the above-mentioned problems, and its purpose is to realize the minimum necessary packaging at low cost in the logistics packaging of glass products, and to products at low prices,
In addition to safely supplying it to consumers, we also aim to save resources and solve the problem of waste.

That is, the present invention firstly provides a mouth part of a glass product characterized in that the mouth part of the glass product is covered with a ring of a heat-shrinkable film and heated, thereby covering the mouth part with the shrunk film. Regarding the protection method, the second method is to automatically supply a ring of pre-formed heat-shrinkable film from above the glass products flowing on the conveyor of the production line, cover the mouth of each glass product, and attach it to the guide rail. This method relates to a method for protecting the mouth of a glass product, which is characterized in that the ring is contracted by passing through a downstream heating furnace while being held at an appropriate vertical position of the mouth of the glass product, and the ring is brought into close contact with the mouth of the glass product. .

In the present invention, the glass product is a glass tip.

This term refers to glass eating and drinking utensils such as stem tumblers, mugs, glass bowls, plates, and other glass products that require protection of the mouth portion due to their shape.

Furthermore, examples of the heat-shrinkable plastic film in the present invention include PP (polypropylene), PVC (vinyl chloride), and PE (polyethylene).

They are made of PS (polystyrene), LPS (laminated polystyrene), etc., and these plastic films are held in a state that slightly protrudes upward from the mouth. This holding depends on the shape of the glass product, but is usually carried out by guide rails on the conveyor of the production line. In this state, the top and side surfaces of the mouth of the glass product are coated and protected by passing it through a heating furnace set at a temperature optimal for film shrinkage.

By covering the top and sides of the mouth of the glass product with a film, the mouth, which is the weakest part of the glass product, can be prevented from coming into direct contact with other glasses. There is no need to use it, so it is easy to accumulate two-force lath products, and automatic packaging is also easily possible.

EXAMPLES The present invention will be explained in detail with reference to the examples shown in the drawings.6 Figure 1 is a simplified side view of an example of an apparatus for carrying out the present invention.4 A tumbler 2 flowing on a conveyor 3 of a production line is pre-viewed from above. A molded shrink film ring 1 is supplied and placed over the mouth of each tumbler 2, and is held by a guide rail 4 in a state protruding from the upper end of the tumbler 2 by 3 to 10 mm. -2, the shrink film ring 1 shrinks in the downstream heating furnace 5, and tightly adheres to the mouth of the tumbler 2, covering the sides and top of the mouth.

FIG. 2 is a perspective view showing the shrink film ring 1. The width of this ring depends on the glass product, but for example 1
Use one with a size of 0 to 30 cm. The diameter of this ring, depending on the shrinkage rate of the film used, is set to be 0.5 to 2 degrees larger than the outer diameter of the mouth of the glass product. FIG. 3 is a perspective view showing a state in which the tumbler 2 is covered with a link film ring 1, and shows the upper end portion 1 of the ring 1. For example, 10 to 30 cm a protrudes above the tumbler 2. FIG. 4 is a perspective view showing the state shown in FIG. 3 passed through a heating furnace, and the opening of the two tumblers 2 is covered with a shrink film. FIG. 5 is an enlarged central vertical cross-sectional view of the vicinity of the opening of the tumbler shown in FIG. 4.

The mouth of the tumbler 2 is covered with a shrunk film on its side and top surfaces. FIG. 6 shows a combination of tumblers 2 covered with shrink film in an upright and inverted position, and a gap 9 equal to the thickness of the film is created between the two tumblers.

Figure 7 shows six tumblers whose openings are covered and protected by a ring of shrink film, placed on a paper tray 6 in an upright and inverted staggered arrangement, and the whole is wrapped with shrink film 7 for final packaging. FIG. FIG. 8 is a perspective view of three tumblers whose openings are covered and protected by a ring of shrink film, arranged in a staggered manner in an upright and inverted position, and then wrapped together with a shrink film 7 for final packaging.

FIG. 9 is a perspective view of two three-piece packages shown in FIG. 8 arranged side by side and bound with a PP band 8.

Effects of the Invention According to the mouth protection method of the present invention, it is possible to continuously and automatically cover and package the mouth of individual glass products with a shrink film ring on the production line as described above. Products that have been covered and protected can be packaged in any number of pieces as they are and wrapped in shrink film, or
It can be summarized by P band.

Therefore, unlike the conventional one made of pole paper or cardboard,
Compared to packaging in which glass products are manually packed into individual boxes or six-pack boxes, which requires high packaging materials and labor costs, packaging can be done at a lower cost, resulting in significant cost reductions for manufacturers. In addition, because the packaging is the minimum necessary for consumers, less waste is generated after unpacking than before.
The present invention is also highly effective from the viewpoint of resource saving.

[Brief explanation of drawings]

Fig. 1 is a schematic side view of an apparatus for carrying out the present invention, Fig. 2 is a perspective view of a ring, Fig. 3 is a perspective view of a tumbler covered with a ring, and Fig. 4 is a tumbler passed through a heating furnace. A perspective view of
FIG. 5 is an enlarged central vertical sectional view of a part of FIG. 4, FIG. 6 is a perspective view of two tumblers implementing the present invention combined, and FIG. 7 is a view of six tumblers implementing the present invention. - is a perspective view of packaging. FIG. 8 is a perspective view of three tumblers packaged, and FIG. 9 is a perspective view of three tumblers packaged together and tied together with a band. DESCRIPTION OF SYMBOLS 1... Shrink film ring, 1a... Ring upper end, 2... Tumbler 13... Conveyor, 4 Guy rail, 5... Heating furnace, 6... Paper tray, 7...
...Nyulink film, 8...PP bundt, 9...Gap patent applicant Toyo Glass Co., Ltd. agent Patent attorney Kobe Mitsuru
Makoto Kobe Fig. 4 Fig. 5 Fig. 1 Fig. Fig.

Claims (2)

[Claims] (1) A method for protecting the mouth of a glass product, which comprises covering the mouth of the glass product with a ring of heat-shrinkable film and heating the mouth, thereby covering the mouth with the shrunk film. (2) A ring of pre-formed heat-shrinkable film is automatically supplied from above the glass products flowing on the conveyor of the production line, and is placed over the mouth of each glass product, and then guided by a guide rail to the appropriate position of the mouth. A method for protecting the mouth of a glass product, the method comprising: shrinking the ring by passing it through a downstream heating furnace while holding the ring in a vertical position, and bringing the ring into close contact with the mouth of the glass product.