JP5014611B2 - Label mounting device - Google Patents

Description

This invention attaches a cylindrical shrink label to the body of a cup-shaped container in which the upper end opening is closed while the contents are accommodated, and the flange is connected to the upper end of the body having a tapered bottom. to Lula about the bell mounting device.

  For example, as a container for storing food such as yogurt or pudding, there is a cup-shaped container 50 as shown in FIGS. The cup-shaped container 50 has a cup-shaped container body 51 in which a flange 51b is connected to the upper end of a tapered body 51a, and a peripheral portion of the flange 51b of the container body 51 is heat-sealed. And a lid sheet 52 that closes the upper end opening of the container body 51. In such a cup-shaped container 50, a product name, a trademark, a design, and the like are placed on the tapered body 51a of the container body 51. A printed cylindrical shrink label 53 is attached.

  By the way, when the cylindrical shrink label 53 is attached to the body 51a of the empty container body 51 in which no contents are accommodated, the cup-shaped container body 51 is turned upside down as shown in FIG. The cylindrical shrink label 53, which is slightly larger than the upper end opening of the container body 51, is fitted on the tapered body 51a from above, and then the shrink label 53 is heated and contracted. A method of closely contacting the outer peripheral surface of the trunk is generally employed.

  In addition, in order to minimize the stock of cup-shaped containers that store specific products, it is desirable to attach shrink labels after storing the contents in cup-shaped containers. When the shrink label is attached in such a state, the cup-shaped container containing the contents is turned upside down because the surface of the lid sheet comes into contact with the conveyor and becomes dirty or the contents are mixed. In some cases, the shrink label cannot be attached.

  Therefore, in such a case, as shown in FIG. 7B, the container main body 51 in which the contents are stored is placed in a normal state (a state in which the bottom is down), and the flange portion of the container main body 51 is placed. It is conceivable that the cylindrical shrink label 53 is fitted on the tapered barrel 51a from the side 51b. In order to fit the cylindrical shrink label 53 on the barrel 51a of the container body 51, the container body Since the cylindrical shrink label 53 that is slightly larger than the flange portion 51b of the 51 must be used, the diameter of the fitted shrink label 53 is larger than necessary relative to the diameter of the body portion 51a of the container body 51. Become. For this reason, it is necessary to increase the heat shrinkage rate when the shrink label 53 is heated and shrunk, and the design printed on the shrink label 53 may be distorted, or the shrink label 53 itself may be wrinkled. Thus, there is a problem that the shrink label 53 cannot be mounted neatly on the body 51a of the container body 51.

JP 08-337219 A

  Therefore, at present, when the cup-shaped container cannot be turned upside down, a tack label is affixed to the outer peripheral surface of the body of the container body without using a shrink label, or the container body is manufactured. At the same time, by adopting in-mold molding that prints on the outer peripheral surface of the barrel part, the outer peripheral surface of the container body is decorated, but both are expensive and cannot be manufactured inexpensively. There's a problem.

Accordingly, an object of the present invention, even if it is not possible to the cup-shaped container upside down, to provide a can be Lula bell mounting device to neatly mounted a cylindrical shrink label to the body portion It is in.

In order to solve the above-mentioned problems, the invention according to claim 1 is a cup-shaped container in which the upper end opening is closed in a state where the contents are accommodated, and the flange portion is continuously provided at the upper end of the barrel portion having a tapered bottom side. A label fitting means for fitting a cylindrical shrink label on the body portion of the body, and a label heating means for heating and shrinking the shrink label fitted on the body portion of the cup-shaped container, the label fitting means, A cylindrical shrink label is fitted and a pedestal mandrel on which the cup-shaped container is placed on the upper end surface, and the shrink label fitted on the pedestal mandrel is lifted and placed on the upper end surface of the pedestal mandrel A label holding part for fitting a shrink label from the lower side to the body of the cup-shaped container, and the label heating means is a shell that is fitted to the body of the cup-shaped container. A first heating means for locally heating and shrinking the upper end portion of the label; and a first heating means for heating and shrinking the lower end portion of the shrink label whose upper end portion is locally thermally shrunk in a concentrated manner. and second heating means, by the first heating means and the second heating means for heating, and a third heating means for heat shrinking the middle portion of the shrink label upper and lower ends is heat shrunk, the The first heating means is a hot air heater that blows hot air on the upper end portion of the shrink label, and the upper end portion of the shrink label that is locally heated and shrunk by the hot air heater is bonded and fixed to the upper end portion of the body portion of the cup-shaped container. The second heating means is formed by immersing the bottom of a cup-shaped container in which a shrink label is fitted to the trunk in hot water, A hot water heater to intensively heat shrinking the lower end of Le, the third heating means is a steam heater for blowing heated vapor to an intermediate portion of the shrink label, said first heating means, the second heating means and According to another aspect of the present invention, there is provided a label mounting apparatus in which the shrink label fitted on the body of the cup-shaped container is heated and shrunk stepwise by the third heating means.

As described above, in the label mounting device according to the first aspect of the present invention, the cup-shaped container in which the contents are stored has a cylindrical shrink label from the bottom side to the body portion with the bottom side facing down. It is not necessary to make the diameter of the shrink label one time larger than the outer diameter of the flange portion, and it is only necessary to make it one time larger than the maximum diameter of the body portion of the cup-shaped container. The heat shrinkage rate when heat shrinking can be minimized, and the shrink label can be used without distortion in the design printed on the shrink label or wrinkle on the shrink label itself. It can be mounted neatly on the body of the cup-shaped container.

Moreover, in this label mounting apparatus, the upper end portion of the shrink label having a small diameter difference with respect to the barrel portion having a tapered bottom side in the cup-shaped container is formed by a first heating means including a hot air heater, so that the shrink label having a large diameter difference is formed. Since the lower end part is heated and shrunk stepwise by the second heating means comprising a hot water heater, and the middle part of the shrink label having a medium diameter difference by the third heating means comprising a steam heater . A cylindrical shrink label can be efficiently and neatly attached to a barrel portion having a tapered bottom side.

Further, in the label mounting apparatus this, the cup-shaped container is placed on the upper end face of the pedestal mandrel which open in a predetermined state by fitting the tubular shrink label, the label lifting part, in advance, to be on a pedestal mandrel By lifting the fitted shrink label, the shrink label is fitted to the body of the cup-shaped container from the lower side, so the mechanism is not complicated, and the tubular part of the cup-shaped container is A shrink label can be fitted efficiently.

  Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 shows the body of a cup-shaped container (hereinafter referred to as a container) C in which a flange is connected to the upper end of a tapered body so that the upper end has a larger diameter than the lower end. 1 shows a schematic configuration of a label mounting apparatus 1 for mounting a cylindrical shrink label (hereinafter referred to as a label). In addition, the contents are previously accommodated in the container C, and the upper end opening is closed by heat-sealing the lid sheet to the flange.

  As shown in FIGS. 1 and 2, the label mounting device 1 is folded into a sheet shape while sequentially cutting the long strip-shaped label-forming substrate M fed from the substrate roll R by the substrate feeding portion 2 a. A label supply unit 2 that sequentially supplies the labels to the label supply position α while opening the labels, and a belt conveyor 3a, screws 3b, 3c, and a star wheel 3d that sequentially supply the containers C to the container supply position β. After receiving the container supply unit 3 and the label supplied by the label supply unit 2 at the label supply position α, the container C supplied by the container supply unit 3 is received at the container supply position β, and the container supply position a rotary type label fitting unit 4 for fitting the label to the body of the container C while transporting to γ, and this label fitting The container delivery unit 5 for delivering the container C with the label fitted by the unit 4 and the body of the container C during the conveyance of the container C by the label fitting unit 4 and the delivery of the container C by the container delivery unit 5 A label heating unit 6 is provided that heats the fitted label stepwise to heat-shrink the label. In addition, the said label formation base material M is the thing in which the cylindrical label with which the container C is mounted | worn is connected continuously, and is wound around the drum in the state folded in the sheet form in the base material supply part 2a. Yes.

  As shown in FIGS. 2 and 3, the label fitting unit 4 is a rotating shaft that is rotated by a rotational driving force transmitted from a motor 4a that is a driving source via power transmission means such as gears 4b and 4c. A plurality of label-fitting heads 10 attached at regular intervals to the periphery of the support disk 4d fixed to each of the labels, and each label-fitting head 10 is a label opened in a cylindrical shape at the label supply position α. After receiving the container C, the container C is received at the container supply position β, and the label L is fitted on the body of the container C.

  As shown in FIG. 4, the label fitting head 10 is fitted with a cylindrical label L at a label supply position α, and places a container C on the upper end surface at the container supply position β. As shown by a two-dot chain line in the figure, the mandrel 11 and the label L fitted on the pedestal mandrel 11 are lifted and placed on the trunk of the container C placed on the upper end surface of the pedestal mandrel 11. The pedestal mandrel 11 is placed by sucking air from the suction path 11a opened at the upper end surface thereof. The container C is sucked and held on the upper end surface.

  As shown in the figure, the carrier plate 13 is attached to a slider 15 slidably supported by a guide shaft 14 erected on a support disk 4d while being loosely fitted to a pedestal mandrel 11. With the cam follower 16 attached to the slider 15 being fitted in the cam groove 17a formed on the outer peripheral surface of the cylindrical body 17 fixedly installed above the support disk 4d, the support disk 4d rotates. When the label fitting head 10 moves along the outer peripheral surface of the cylindrical body 17, the carrier plate 13 is moved up and down.

  As shown in FIGS. 1 to 3, the container delivery unit 5 includes a container delivery means 5 a composed of a star wheel 21 and a belt conveyor 22, and a container C on which a label L is fitted. The container delivery means 5b is configured to pass between the container delivery position γ and the container delivery position δ as shown in FIG. 2 and FIG. A number of container gripping mechanisms 23 that move upward are provided, and the container gripping mechanism 23 grips the upper end portion (lower side of the flange portion) of the container C from the container delivery position γ in the label fitting unit 4. The container C is delivered to the container delivery position δ and delivered to the star wheel 21 at the container delivery position δ.

  As shown in FIGS. 1 to 3, the label heating unit 6 includes a first heating means 6 a installed in the transport path of the container C in the label fitting unit 4 and a delivery path of the container C in the container delivery means 5 b. It comprises a second heating means 6b installed and a third heating means 6c installed on the belt conveyor 22 portion of the container delivery means 5a. Each heating means is fitted on the body of the container C. The predetermined height position on the label L is heated stepwise.

  The first heating means 6a is disposed directly above the conveyance path of the container C in the label fitting unit 4 and is placed on the upper end portion of the label L fitted on the body portion of the container C by the label fitting unit 4. A hot-air heater that blows hot air of 80 to 200 ° C. from both sides of the conveyance path of C, and heat-shrinks the upper end of the label L locally and activates the heat-sensitive adhesive applied to the inner surface of the upper end of the label L The upper end portion of the heat-shrinkable label L is adhered to the outer peripheral surface of the body portion of the container C.

  The second heating means 6b is a hot water heater in which hot water of about 90 to 95 ° C. is stored in a hot water tank disposed immediately below the delivery path of the container C in the container delivery means 5b. The mechanism 23 receives the container C by grasping the upper end of the label L which has already been thermally contracted, and transports it to the position immediately before the container delivery position δ with the bottom of the container C immersed in the hot water of the hot water storage tank. By doing so, the lower end portion of the label L having a large diameter difference from the bottom portion of the container C is intensively heated and shrunk.

  The third heating means 6c is disposed so as to surround the belt conveyor 22 of the container delivery means 5a, and heat steam of 80 to 90 ° C. is applied to an intermediate portion of the label L whose upper end and lower end are already thermally contracted. It is a steam heater to be sprayed, and the entire label L is brought into close contact with the outer peripheral surface of the body portion of the container C by intensively heating and shrinking an intermediate portion of the label L which has not yet been thermally contracted.

  The operation of the label mounting apparatus 1 configured as described above will be described below with reference to FIG. First, as shown in FIG. 5A, at the label supply position α, the label supply unit 2 sends out a cylindrical label L opened in a predetermined state downward, whereby the pedestal of the label fitting head 10 is obtained. The label L is fitted on the mandrel 11 from above.

  Next, as shown in FIG. 6B, the container C supplied by the container supply unit 3 is placed on the upper end surface of the pedestal mandrel 11 of the label fitting head 10 at the container supply position β, and the pedestal mandrel 11 is held by suction on the upper end surface.

  Subsequently, as shown in FIG. 5C, the carrier plate 13 of the label holding upper portion 12 is lifted to lift the label L fitted on the pedestal mandrel 11 and place it on the upper end surface of the pedestal mandrel 11. The label L is fitted on the body portion of the container C that has been formed from below. This operation is performed after the container C is sucked and held on the upper end surface of the pedestal mandrel 11 until the pedestal mandrel 11 reaches the first heating means 6a.

  In this way, when the label L is fitted on the body portion of the container C placed on the upper end surface of the pedestal mandrel 11, as shown in FIG. Hot air is blown to the upper end of L, and the upper end of the label L is locally heated and shrunk, and the heat-sensitive adhesive applied to the inner surface of the upper end of the label L is activated, The upper end is attached to the outer peripheral surface of the body of the container C. In addition, while the 1st heating means 6a is heating the upper end part of the label L, the carrier plate 13 does not fall, but the label L fitted to the trunk | drum of the container C is supported.

  Thus, when the upper end portion of the label L is heat-shrinked and attached to the body portion of the container C, the carrier plate 13 descends, and as shown in FIG. The container gripping mechanism 23 of the container delivery means 5b receives the container C by gripping the upper end of the label L that has already been thermally contracted, and transports it to the container delivery position δ, as shown in FIG. In the middle of the conveyance, the bottom portion of the container C is immersed in the hot water of the hot water tank in the second heating means 6b, so that the lower end portion of the label L having a large diameter difference from the bottom portion of the container C is intensively heat-shrinked.

  Thereafter, as shown in FIG. 6G, after the container C is delivered to the star wheel 21 of the container delivery means 5a at the container delivery position δ, it is delivered to the outside by the belt conveyor 22. In the middle of delivery by the belt conveyor 22, the third heating means 6 c sprays heated steam on the intermediate portion of the label L, so that the heat shrinkage is performed around the intermediate portion of the label L that has not yet been thermally contracted. The entire label L is brought into close contact with the outer peripheral surface of the body of the container C.

  As described above, in the label mounting device 1, the container C in which the contents are stored is fitted with the cylindrical label L from the bottom side to the body portion with the bottom side facing down. Therefore, it is not necessary to make the diameter of the label L one time larger than the outer diameter of the flange portion, and it is sufficient to make it one time larger than the maximum diameter of the body portion of the container C. The shrinkage rate can be suppressed to the minimum necessary, and the label L can be cleaned on the body of the container C without causing distortion in the design printed on the label L or wrinkles on the label L itself. Can be attached to.

  In particular, in this label mounting apparatus 1, the container C is placed on the upper end surface of the pedestal mandrel 11 that opens in a predetermined state by fitting the cylindrical label L, and the carrier plate 13 of the label holding unit 12 is used to The label L fitted to the pedestal mandrel 11 is lifted so that the label L is fitted to the body of the container C from the lower side thereof, so that the mechanism is not complicated and the body of the container C is not complicated. It is possible to efficiently fit the cylindrical label L on the cover.

  Moreover, in this label mounting apparatus 1, hot air is blown to the upper end portion of the label L with a small diameter difference against the tapered body of the container C, and hot water is applied to the lower end portion of the label L with a large diameter difference. By immersing, the middle part of the label L having a medium diameter difference is heated and shrunk in steps by blowing heated steam, so compared with the case where a single heating method is adopted. The cylindrical label L can be efficiently and neatly attached to the tapered body.

  In the above-described embodiment, the case where the cylindrical shrink label L is attached to the cup-shaped container C in which the body portion is formed in a tapered shape has been described. However, the present invention is not limited to this, and the body portion is straight. Needless to say, the label mounting method and the label mounting apparatus of the present invention can be applied to the cup-shaped container formed in the shape.

  In the embodiment described above, the lower end portion of the label L having the largest diameter difference from the container C is thermally contracted by being immersed in hot water, but is not limited to this, and the bottom portion of the container If the difference between the diameters is not so large, it is possible to heat shrink using a steam heater or hot air heater. Further, when the lower end portion of the shrink label does not enter the bottom surface side of the cup-shaped container, the second heating means 6b is omitted, and both the intermediate portion and the lower end portion of the label L are heated and contracted by the third heating means 6c. You can do it.

It is a schematic plan view which shows one Embodiment of the label mounting apparatus concerning this invention. It is a partial enlarged plan view which shows a label mounting apparatus same as the above. It is a partial side view which shows a label mounting apparatus same as the above. It is a fragmentary sectional view which shows the label covering head mounted in the label covering unit in a label mounting apparatus same as the above. (A)-(h) is operation | movement explanatory drawing for demonstrating the mounting operation | movement of the label by the label mounting apparatus same as the above. (A) is a top view which shows a general cup-shaped container, (b) is a side view which shows a cup-shaped container same as the above. (A) is explanatory drawing for demonstrating the conventional label mounting method, (b) is explanatory drawing for demonstrating a problem when a cup-shaped container cannot be turned upside down.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Label mounting apparatus 2 Label supply unit 3 Container supply unit 4 Label fitting unit 5 Container delivery unit 5a Container delivery means 5b Container delivery means 6 Label heating unit 6a First heating means 6b Second heating means 6c Third heating means 10 Label Fit head 11 Pedestal mandrel 11a Suction path 12 Label holding upper part 13 Carrier play 14 Guide shaft 15 Slider 16 Cam follower 17 Cylindrical body 17a Cam groove C Cup-shaped container L Shrink label

Claims (1)

Label fitting for fitting a cylindrical shrink label to the body of a cup-shaped container in which the upper end opening is closed while the contents are accommodated, and the flange is connected to the upper end of the body having a tapered bottom. Means,
A label heating means for heating and shrinking the shrink label fitted to the body of the cup-shaped container,
The label fitting means lifts the pedestal mandrel on which a cylindrical shrink label is fitted and a cup-shaped container is placed on the upper end surface, and the shrink label fitted on the pedestal mandrel. The body part of the cup-shaped container placed on the upper end surface of the mandrel has a label holding upper part for fitting a shrink label from the lower side thereof,
The label heating means
First heating means for locally heating and shrinking the upper end portion of the shrink label fitted to the body portion of the cup-shaped container;
A second heating means for intensively heating and shrinking a lower end portion of the shrink label whose upper end portion is locally heat-shrinked by heating by the first heating means;
The first heating means and the second heating means are heated to have a third heating means for heating and shrinking an intermediate portion of the shrink label whose upper end and lower end are thermally shrunk;
The first heating means is a hot air heater that blows hot air on the upper end portion of the shrink label, and the upper end portion of the shrink label that is locally heated and shrunk by the hot air heater adheres to the upper end portion of the body portion of the cup-shaped container. It is supposed to be fixed
The second heating means is a hot water heater that intensively heats and contracts the lower end portion of the shrink label by immersing the bottom portion of the cup-shaped container in which the shrink label is fitted to the body portion in hot water,
The third heating means is a steam heater that blows heating steam on an intermediate portion of the shrink label,
A label mounting apparatus characterized in that the shrink label fitted on the body of the cup-shaped container is heated and contracted stepwise by the first heating means, the second heating means, and the third heating means. .

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