JPS6332A - Automatic labeller - 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] [Industrial application field]

The present invention relates to an automatic label affixing device that peels off labels that have been continuously temporarily attached to a mount one by one from the mount and affixes the labels onto an object to be affixed. The present invention is directed to a label affixing device used for affixing a color-changing label that has a layer and retains a color-changing function that is exhibited depending on the relationship between temperature and time after microcapsules are destroyed.

[Prior art] A conventional automatic label pasting device uses a guide roll to feed out a mount on which a label is temporarily attached so that it can be peeled off.
This mount is wrapped around the tip of a peeling plate whose tip is positioned just in front of the pasting roller, and is run in reverse, and when the mount is reversed, the label is automatically peeled off from the mount,
The above-mentioned pasting roller is lowered, and the label can be pressed and pasted onto the object to be pasted that has been transferred directly below the pasting roller. [Problem to be solved by the invention 1] In the field of distribution of fresh foods, etc., it is common knowledge to store and manage product packages at a required low temperature. Regarding the management status, the only option is to trust the supplier at each distribution stage, and the current situation is that it is not easy to confirm whether the management status is appropriate or not. Therefore, as labels for use on food packages that require low-temperature control, color-changing labels have been developed that can accurately display and record temperature changes that the food packages undergo during distribution. Its practical application is progressing. This color-changing label is, for example, the third label in the attached drawing.
As shown in the figure, a coloring agent layer 2 using a coloring agent 2a is formed on the surface of a support 1, a coloring time management layer 3 is placed thereon, and a coloring auxiliary agent and a substance having a predetermined melting point are further placed thereon. The contents are provided with a microcapsule layer 5 using pressure-ruptured microcapsules 4 (indicated by reference numeral 4a), and an adhesive layer 6 is provided on the back surface of the support 1, and this color-changing label is attached to a mount. It is used by temporarily fixing it on the release agent layer 8 of 7 so that it can be peeled off freely, but the internal microcapsules 4
Unless it is destroyed, the coloring agent 2a and the coloring aid do not react in an environment where the melting point of the substance having a predetermined melting point is higher than the melting point, so no color change (color development) occurs. However, when the microcapsules 4 are destroyed and the label is exposed to a temperature higher than the melting point of a substance having a predetermined melting point, the substance having a predetermined melting point melts and the liquid containing the coloring aid melts and melts the coloring time management layer 3. It takes a predetermined time to pass through and reach the color forming agent layer 2,
The coloring agent 2a and the coloring aid react to cause discoloration (color development). This allows you to easily know that the temperature control is abnormal. Therefore, to use the above color-changing label,
It is necessary to destroy and activate the microcapsules 4 before pasting the label on a product package, etc., and it is desirable to have a microcapsule destruction mechanism that can be easily and appropriately incorporated into conventional automatic label pasting devices. was. [Means for Solving the Problems] The present invention has been made in view of the above-mentioned points, and its purpose is to prevent discoloration labels from appearing on the backing paper when the backing paper on which discolorable labels are successively temporarily fixed is fed out. To provide an automatic label pasting device equipped with a destruction mechanism capable of uniformly applying impact to only necessary parts of a color-changing label and easily and surely destroying microcapsules without impairing the appearance of the label itself. SUMMARY OF THE INVENTION Accordingly, the above object of the present invention is to provide a label affixing device for affixing a label containing pressure rupture type microcapsules and having a time and temperature control function activated after the microcapsules are ruptured, to an object to be affixed. Peeling involves a feeding part of the mount which is temporarily attached so that it can be peeled off, and the above-mentioned mount paid out from this feeding part, wrapped around the tip part, and then reversed so that the mount runs in the opposite direction to the feeding direction. a plate, and a pasting part that is arranged facing the tip end side of the peeling plate and moves toward the target to be pasted on the transfer member. In an automatic label pasting device comprising a winding section that takes up the backing sheet that has been reversed by the peeling plate and the label has been removed, the label on the backing sheet that has been fed out from the feeding section in front of the tip of the peeling plate. This is achieved by an automatic labeling device equipped with a destruction mechanism that destroys the microcapsules contained in the liquid by impact.

【Example】

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2 of the accompanying drawings. A mount 12 on which the label 11 is temporarily attached so that it can be peeled off.
A feeding section 13 that accommodates a roll of material and an application roller 14 that applies a label 11 onto an object P
A tension roller 15. which guides the running of the mount 12 is provided between the mount 12 and the mount 12 (label pasting section). presser roller 16,
Each roller such as a guide roller 17 is arranged, and a peeling plate 18 with a tip 18a narrowed at an acute angle is provided in front of the pasting roller 14, and the top end 18a is located just in front of the pasting roller 14. There is. Further, the pasting roller 14 is freely movable (downward in the illustrated case) toward the pasted object P transported by a transport member 19 such as a belt conveyor. On the other hand, the label 11 is wrapped around the peeling plate 18 and turned upside down.
A winding section 21 is provided to take up the mount 12' from which the mount 12' has been removed, and the mount 12' is moved to a guide roll 22. It passes through rollers such as pinch rollers 23 and is wound up into a winding section 21. Since the label 11 is temporarily attached to the release agent layer of the mount 12 through the adhesive layer provided on the back side, the mount 12 is turned over by wrapping around the tip 18a of the release plate 18. When you drive. At the time of reversal, the label 11 is automatically peeled off from the mount 12 by the reaction force (see Figure 2), and the label 11
The label 11 is pasted onto the object P by the pressing action of step 4. Note that there is also a method of using a compressed air nozzle or the like instead of the pasting roller 14 as the label pasting component. The configuration described above is the same as that of a conventionally used automatic label pasting device, and the present invention incorporates the microcapsule destruction mechanism provided in the above-mentioned color-changing label into this automatic label pasting device. . That is, the destruction mechanism 30 destroys the label 11 on the running paper 12.
It is composed of a stamping hammer 30a (gold, @ stamp 30b) for stamping and a stamping stand 30c, and this breaking mechanism 30 is arranged in the front part of the peeling plate 18 from the tip 18a (on the side where the mount 12 is fed out). When passing through the destruction mechanism 30, the microcapsules of the color-changing label are punched by the destruction machine 4it30 and destroyed by the impact. This point of destruction is the starting point for the temperature control function of the color-changing label, and the color change function is used to confirm the temperature control status of the object to which the label is attached (for example, product packaging) during subsequent distribution stages. It turns out. In the figure, 24 is a label position detection unit (photoelectric device) on the mount 12, 25 is a label adhesion prevention plate for the pasting roller 14, 26 is a machine frame, and 27 is a stand. Next, a specific example of destroying microcapsules using the destruction mechanism 30 will be described. As shown in FIG. 4, a mount 12 on which a label containing pressure-ruptured microcapsules is temporarily attached so that it can be peeled off freely.
is fed out, and when the stop position of the label is detected by the label position detector 24 as it advances, the solenoid 31 is actuated by this detection signal, and the label is struck by the striker 32, thereby destroying the microcapsules contained in the label. is destroyed. In the figure, 12' is the mount from which the label has been removed, and 33 is the base. Further, as shown in FIG. 5, when the link mechanisms 42, 43, 44 are connected to the rotating crankshaft 41 and the feed roller 47 integrated with the ratchet wheel 46 is rotated by the first operating pawl 45,
By this feed roller 47 and pinch roller 48,
A mount 12 on which a label containing pressure-ruptured microcapsules is temporarily attached in a removable manner is unrolled.
- direction. A piston 5 is connected to the crankshaft 41 via a crank plate 49.
1 are connected to each other, and by the vertical movement of the piston 51, the label temporarily fixed to the mount 12 moving on the base 52 is strongly pressed onto the base 52, and the microcapsules contained in the label are destroyed. Ru. In addition,
In the figure, 12' is the mount from which the label has been removed, and 53 is the mount 1.
2 is an adjustment mechanism for adjusting the feed amount; 54 is a guide for the piston 51; Effects of the Invention 1 The present invention is as described above, and employs a destruction mechanism that destroys microcapsules by pressing the color-changing label with a built-in color-changing function with an impact. It is now possible to press only a portion of the label, which solves problems such as stretching and distortion of the label due to full-surface pressure, and meandering when the liner runs, which tend to occur in the destruction method using pressure rolls. In addition, as shown in Figures 4 and 5, if a solenoid type or double slide crank mechanism is adopted as the destruction mechanism, constant and even impact force can be obtained, which is sufficient to destroy microcapsules. High efficiency can be achieved, making it extremely useful as an automatic labeling device of this type.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of the device of the present invention, Fig. 2 is a perspective view of the main part showing the state in which the label is peeled off, and Fig. 3 is a cross-sectional view of the label retaining the color changing function temporarily fixed on the mount. , 4 and 5 are schematic side views showing specific examples of the breaking mechanism. In the figure, 11 is a label, 12 is a mount, 13 is a feeding part,
14 is a pasting roller (pasting part), 18 is a peeling plate, 1
8a is a tip end, 19 is a transfer member, 21 is a winding part, 30
is the destruction mechanism, and P is the object to be pasted.

Claims (1)

[Claims] A labeling device that affixes a label containing pressure-ruptured microcapsules and a time and temperature control function activated after the microcapsules are ruptured to an object, on which the label is temporarily attached so that it can be peeled off. a feeding section; a peeling plate that wraps around the tip of the mount paid from the feeding section and inverts the mount so that it runs in a direction opposite to the feeding direction; and the tip of the peeling plate. A pasting part that is arranged facing the side and moves toward the object to be pasted on the transfer member, and a winding part that takes over the mount from which the label has been removed after being reversed by the peeling plate. The automatic label pasting device is characterized in that a destruction mechanism is provided in front of the tip of the peeling plate to destroy microcapsules contained in the label on the mount sheet fed out from the feeding section by impact. Labeling device.