JPH0136729Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial field of application) The present invention mainly relates to a device for attaching Shrink labels to packaging containers such as food trays with lids, etc. The present invention is mainly concerned with a device for attaching Shrink labels to packaging containers such as food trays with lids. It is characterized in that a label can be attached.

(Prior art) Conventionally, thin, transparent molded vinyl chloride containers have been used to package foods such as steamed buns, cream puffs, and bento boxes. More simply, a rubber band is used to prevent the lid from opening, and the lid is often sold in this state. This is often seen when the food is a perishable product manufactured on the same day, and is sold at individual stores, markets, and supermarkets that primarily target housewives in the neighborhood.

However, recently, food safety and hygiene management has become particularly strict, especially in supermarkets where pre-packaged food is placed on display stands. Various packaging forms have been devised so that once the packaging is unwrapped, it cannot be returned to its original state.

To deal with this, various measures are still being taken for foods that are mass-produced by large companies and have a long shelf life, such as biscuits, caramel, and chiyocolate, such as wrapping them completely in cellophane. In the case of food products, the materials and shapes of packaging containers vary, and the number of containers is small, so it is difficult to package them reliably.

(Problems to be Solved by the Invention) In view of the above-mentioned circumstances, the present invention considers applying a honey-wrap to conventional packaging containers for perishables using shrink packaging as shown in Figure 4. The shrink film is automatically attached to the container, and one embodiment of the present invention will be described below with reference to the drawings.

(Structure of the invention) In the figure, 1 is a table having a rectangular corner window 2 in the center, and a vertically movable vacuum having a suction surface 3 on the upper surface which is slightly smaller than the corner window at the bottom of the table. A lower suction plate 4 of the type is provided, and on the other hand, an upper suction plate 6 similar to that described above having a suction surface 5 on the lower surface is provided on the upper part of the table 1 so as to be movable up and down, and the upper and lower suction plates are respectively attached to the table. It advances to the surface and comes into direct contact with the corner window.

A cutter 7 for cutting the film is provided on the side of the lower suction plate 4 in the lowered position, and the cylindrical flat film 8 is unwound from the roll 9, printed in the printing section 10, and printed on the sewing machine date forming section 11. After the perforations are made, the feed roller 12 cuts the cutter 7.
The film is fed through the gaps between the blades to the upper surface of the lower suction plate, and the film is then cut by a cutter while the film is being suctioned.

Reference numeral 13 denotes a piston-cylinder type container insertion pusher provided at the front of the upper surface of the table 1, which pushes the container 15 transferred from the side by the supply conveyor 14 into the center of the table. 16
is a container insertion guide provided at the upper part of the insertion pusher, and the tips of a pair of left and right guide rods 17 provided in front thereof are set at approximately the middle height of the container;
As shown in Fig. 2, the planar shape is tapered and stepped, and as the insertion guide moves forward, the tip of the guide rod enters the inside of the cylindrical film by the guide pin 18 and reaches a predetermined position. It expands in shape. Reference numeral 19 denotes a piston-cylinder type container discharge pusher installed on the upper side of the table, which pushes out the container from the center of the table to the side after the cylindrical shrink film has been inserted into the center of the container, leading to the shrink tunnel 20. It is transferred onto a conveyor 21 that leads to.

(Function) When the cylindrical flat film 8 wound around the roll 9 is sent forward by the feed roller 12 via the guide roller, the date of manufacture, etc. is printed on the printing unit 10 along the way, and the film is peeled off. A perforation is made in the perforation forming part 11, and the cutter 7 is fed out to the upper surface of the lower suction plate 4 through the space between the cutters 7. (Fig. 1) The top surface of the lower adsorption plate is shown in Fig. 3 a.
Since the flat label has a flat suction surface 3 as shown in FIG. In this state, after cutting the film with the cutter 7, the lower suction plate 4 is raised to the table surface, and at the same time, the upper suction plate 6 is also lowered to the table surface, and as shown in FIG. When the upper suction plate is evacuated while holding the label and raised while adsorbing the upper surface of the label, the flat cylindrical label is expanded into a substantially rectangular shape as shown in FIG. 3c.

Next, the container insertion guide 1 above the front of the table
6 is moved forward toward the film, the tip of the guide rod 17 provided in front enters the label expanded into a cylindrical shape, and as it is further moved forward, the tip of the guide rod is regulated by the guide pin 18. The label is opened as shown in dashed lines in Figure 2 and in Figure 3d to facilitate subsequent insertion of the container. Subsequently, the container insertion pusher 13 moves the supply conveyor 1
When the container 15 transferred in step 4 is pushed toward the center of the table, the guide rod 17 also serves as a guide for pushing the container, and the container is pushed into the position shown in FIG.
It is inserted smoothly into a label that is opened into a cylindrical shape.

After inserting the container into the label, the insertion guide 16 is moved back together with the insertion pusher 13, the guide rod is removed, the vacuum is cut off, and the top and bottom of the label are released from adhesion.
After raising the upper suction plate 6, the side discharge pusher 19 is moved forward, and the container covered with the label can be sent onto the conveyor 21 leading to the shrink tunnel 20 as shown in FIG. 3e.

In the above embodiment, the insertion guide 16 having a guide rod at the tip acts to insert the container before the container insertion pusher 13 inserts the container. Although it depends on the shape, it is not necessarily required. In cases where an insertion guide is required, for example, when the shape of the container is trapezoidal, or when the center of the side part is protruding, the insertion guide is used when the container is opened into an almost rectangular shape as shown in Figure 3b. If smooth insertion into the interior of the shaped film is not possible, a guide rod corresponding to the shape of the container may be provided.

(Effects of the invention) As mentioned above, the present invention is an extremely simple method in which a flat rolled cylindrical shrink film is suctioned and expanded from above and below using a suction plate, and a container is inserted into this using an insertion pusher. Depending on the configuration, the Syrinx label can be automatically inserted into various containers in the shape of a wrapper or a bevel, so it can be operated efficiently even if it is not a mass-produced product. When used in combination, the film can be reliably inserted into containers of special shapes, and is highly applicable to industry.

Therefore, as shown in FIG. 4, the shrink-wrapped container conforms well to the shape of the container, and the film is tightly wrapped around the container to form a complete seal. Therefore, once a seal has been applied, it is impossible to restore it to its original state if it is peeled off and opened. This is extremely important in terms of food hygiene management, and anyone can easily identify if foreign matter has been mixed into the food.

[Brief explanation of the drawing]

Figure 1 is a side view of an example of the present invention, Figure 2 is a plan view of the same, Figure 3 is a front view showing the state of the Shrink film and upper and lower suction plates in the order of steps, and Figure 4 is a Shrink-wrapped container. FIG. 1...Table, 2...Corner window, 4...Lower suction plate, 6...Upper suction plate, 7...Cutter, 8...
Shrink film, 12... Delivery roller, 13... Insertion pusher, 14... Supply conveyor, 15... Container, 16... Insertion guide, 1
7... Guide rod, 18... Guide pin, 19...
Emission pusher.

Claims (1)

[Claims for Utility Model Registration] 1. At the bottom of the table 1 which has a square window 2 in the center,
A cylindrical flat film feed roller 12 and a cutter 7 are provided, and a lower suction plate 4 having a suction surface 3 on the upper surface and movable up and down is disposed in front of the cutter.
are provided so as to fit into the corner windows of the table, and an upper suction plate 6 having a suction surface 5 on the lower surface and movable up and down is provided above the table in correspondence with the lower suction plate, and the table A container insertion pusher 13 is placed in front of the upper surface of the
Container discharge pusher 1 is located on the top side of the table.
9. A system for attaching a shrink label to a packaging container. 2. The apparatus for attaching a shrink label to a packaging container according to claim 1, wherein the container insertion pusher 13 has a container insertion guide 16 above it.