JPS63307036A - Apparatus for winding strip like label round cylindrical article and pasting same on said article - Google Patents

Abstract

PURPOSE:To improve finishing work by winding a label under relatively strong tension, by applying an adhesive only to the back surfaces of the winding start and finish end parts of a sheet and winding said sheet round a side wall to perform pasting. CONSTITUTION:When a label is sent into a coating apparatus, the leading and rear end parts of the label are detected by the second detection means 18. After the leading end part of the label is detected, the second shaking means 15 shakes downwardly so as to be delayed by a slight time from the shaking of the first shaking means 13 to place the label on a comb-tooth like member 14. When a press roller 16 moves downwardly, the back surface of the label is brought into contact with a coating roller to be coated with an adhesive. Therefore, the back surface of the part between the leading and rear end parts of the label is not coated with the adhesive. The label coated with the adhesive is supplied to an article allowed to rotate from the left side and, by rotating the article at a speed higher than the feed speed of the label, the label is tensioned to be adhered to the article.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an apparatus for wrapping and gluing a band-shaped label in a hoop shape around the side wall of a cylindrical article, such as a packaging can.

Problems with the Prior Art Conventionally, apparatuses for gluing a label to a part of the side wall of a packaging bottle and apparatuses for wrapping and gluing a band-shaped label around the side wall of a packaging bottle in a hoop-like manner are known. However, with these devices, for reasons that are not always clear, it is not possible to glue the label at a fixed position on the bottle, and therefore, when a strip-shaped label is wrapped in a fluffy state and glued, both ends of the label cannot be glued. It overlapped with glitter and could not be glued.

When such an apparatus is applied to the work of wrapping and gluing a strip-shaped label over the height and circumference of the side wall of a cylindrical article 9, for example, an aluminum can for drinking water, that is, over substantially the entire surface of the side wall of the can, , the label may protrude from the top and/or bottom wall of the can, significantly reducing the product value.

Additionally, in conventional devices, adhesive is applied to the entire back side of the label and then glued to the article. This wastes adhesive and leads to higher product costs. Furthermore, the label is thin <, H
If the sheet material is made of a weak sheet material, wrapping the sheet under tension may cause the label to break.To avoid this, wrapping the sheet without tension may cause the label to wrinkle. , the ends at the beginning and end of the roll do not overlap properly, resulting in an unsightly tension. Furthermore, the adhesive may leak onto the label surface, which may impair commercial value.

Furthermore, in conventional equipment, the means for receiving the articles from outside the apparatus into the gluing station, the means for feeding the articles to the station for attaching labels while rotating the articles, and the means for supplying the articles to the station are made up of many parts. , nor were they efficiently associated.

As far as the inventor knows, in a device that wraps a belt-shaped sheet in a hoop shape around the side wall of a cylindrical article and glues it, the adhesive is applied only to the back side of the beginning and end of the sheet. , there was no device for wrapping and gluing this around the side wall.

SUMMARY OF THE INVENTION According to the invention, the invention comprises an applicator roller and a tray for storing adhesive and receiving the adhesive from said tray.

After applying adhesive to the back side of the strip-shaped labels that are supplied one by one, there is an application means that supplies the labels to a gluing station, and a coating means that receives a plurality of cylindrical articles from outside the apparatus and pastes the articles. A means for supplying articles to the station, a pasting means for wrapping and pasting the label coated with adhesive around the side wall of the article at the gluing station, and a means for supplying the article with the label applied to the article outside the apparatus. a) a first swinging means for periodically swinging up and down above the application roller; and a central axis of the application roller. It is connected to a first swinging means corresponding to a plurality of grooves provided on the cylindrical surface of the applicator roller along a plurality of orthogonal planes, and a label supplied from the label supplying means is placed thereon! ! a plurality of comb-teeth-shaped members placed on the comb-teeth-shaped member; a second swinging means that periodically swings up and down above the comb-teeth-shaped members; At least one pressing roller having a plurality of grooves corresponding to the material thickness detects when the tip of the label passes a predetermined distance upstream from above the applicator roller. a first detection means for stopping the movement; a second detection means for detecting that the leading end and the trailing end of the label have passed, the second sensing means being disposed between the first sensing means and the application means; and b) the article conveying means is rotatably supported around a support shaft and revolves MWJ so as to give a trajectory in the form of a cylindrical surface, and at equal intervals along the cylindrical surface of the revolution trajectory. and a rotary frame means having n rollers oriented parallel to the support shaft, the rollers being spaced apart from each other and being rotated whenever the power switch of the device is on. C) The rotating frame means includes a loading station for receiving a cylindrical article, a gluing station for gluing a label coated with an adhesive supplied from the applicator to the article, and a tube for completing gluing of the label. d) is connected to a power source so that it circulates at a predetermined timing and rotates intermittently by an angle of 360/n, and d) is disposed above the article conveying means. The above n
fs! in the direction toward and away from the cylindrical surface given by the locus of the orbital motion of the book roller!
a third rocking means supported so as to be movable; and a roller means rotatably supported at a rocking end of the third rocking means disposed proximate to the gluing station; , biasing means for elastically biasing the third swinging end portion to approach the cylindrical orbital surface; e) two adjacent rollers of the n rollers of the rotating frame means;
When the cylindrical article received between the book rollers is moved to the gluing station by the intermittent rotational movement of the rotary frame means, it is applied against the biasing force of the layering means. Push up the roller means and connect the above two rollers and the second roller.
When the cylindrical article supported between the roller means supported by the swinging means reaches the gluing station or slightly before, it is detected and the applicator is operated. upon initiation of a downward movement of the periodic rocking movement of said first rocking means and, with a slight delay, a downward movement of the periodic rocking movement of said second rocking means; The comb tooth-shaped member is inserted into the groove of the applicator roller, and the label is placed on the comb tooth member. A second detection means is provided for applying adhesive only to the back side of the trailing edge portion, whereby the label coated with adhesive is moved by the rotating roller in the label feeding direction at a speed higher than the label feeding speed. f) the article having completed the pasting of the label, during the subsequent intermittent rotation of said rotating frame means;

being sent to the unloading station.

Effects of the Invention The transportation of the cylindrical article to the loading station, gluing station and unloading station is performed by rotating frame means and intermittently rotated at an angle of 360/n by the driving force supplied from the driving source. This shall be done by appropriate means. Means for effecting such intermittent drive are well known in various forms and will therefore not be described in detail; therefore, the number of parts in the mechanism for effecting these operations is greatly reduced, thereby reducing the frequency of failures. , and the operation becomes reliable.

Application of adhesive to the label is limited to only the back side of the leading and trailing edges in the feeding direction of the label, which not only saves adhesive but also allows the label to be under relatively high tension regardless of its material. It can be applied and wrapped, and therefore the finish is also good.

Although the present invention has been generally described above, the present invention will be explained in more detail below through preferred embodiments of the present invention.

FIG. 1 is a schematic side sectional view of a device according to a preferred embodiment of the present invention. In order to simplify the drawing, the thickness of parts appearing in the cross section is not shown by hatching, but by thick solid lines. There is. Further, parts not related to the characteristics of the present invention are omitted.

In FIG. 1, reference numeral 1 denotes a label supply means that stores a plurality of strip-shaped labels in a stack and supplies the labels one by one. shown as something. Reference numeral 2 denotes a quintuple feed prevention means for preventing two or more labels from being sent out at the same time from the label supply means 1. Various types of means for tearing are known, and any of them can be used. The application means 10 includes a tray 11 for storing adhesive, and an application roller 1 for receiving the adhesive from the tray and applying it to the back side of the label.
2, a first swinging means 13 which is pivotally mounted P1 above the application roller so as to be able to swing vertically periodically;
a plurality of comb-like members 14 coupled to the first swinging means;
A second swinging means 15 is pivotally mounted P2 above the comb-like member so that it can be oscillated periodically at an upper limit; A roller (not shown) and three presser rollers 16 are provided. One of the comb-like members 14 is visible, and the others are hidden behind it. The edges of the holding rollers 16 are provided in the direction orthogonal to the center axis of each roller, the number of which is equal to the number of comb-shaped members. The above multi-feed prevention device 2 and coating device 1
A first detecting means 17 is provided which detects when the leading end of the label passes between the first detecting means 17 and the first detecting means 17 and stops the movement of the label. The detection means 17 is a microswitch,
When the leading edge of the label is detected by the first detection means 17, which may be a known detection means such as a phototube and a light receiving device, the label is stopped slightly upstream of the application means 10; Waits in preparation for coating.

The applicator roller 12 is also formed with grooves corresponding to the comb-like members 14 (not shown). Application roller 12 is powered by a suitable source, such as a motor M. The grooves formed in the roller 12 and the hold-down roller 16 allow the comb teeth 14 to be partially received therein.

The swinging of the first and second swinging means 13.15 starts in conjunction with the operation of the article conveying means, which will be described later. When this occurs, the signal that detects it feeds the waiting label into the applicator, during which the second detection fl'
Hs detects the leading edge and trailing edge of the label. After detecting the leading edge of the label, the first swinging means 13 starts swinging downward with a slight delay, and the second swinging means 13 starts swinging downward with a slight delay. This delay can be obtained by known means such as a timer. Alternatively, by changing the installation position of the second detection means, these operations may be performed almost simultaneously with the detection. Downward W due to a short delay!
During the delay, a gap is created between the upper side of the comb-like member 14 and the roller surface of the pressing roller 16, and the label can be placed on the comb-like member 14. The label moves downward with the comb-like member and, after a short delay, when the presser roller 16 moves downward, the back side of the label contacts the applicator roller and the adhesive is applied. Therefore, no adhesive is applied to the back surface of the area between the leading end and the trailing end of the label.

It is also possible for the first and second rocking means 13.15 to be formed in one piece. In this case, a gap must be provided between the comb-like member 14 and the presser roller 16 in which the label can be inserted.

The article conveying means 20 is configured such that a cylindrical article 3 such as a can is transported from outside the apparatus (on the right side of FIG. 1), and is received in a tub-shaped guide member 21 in this embodiment. has been done. This guide member is not essential; the articles 22 coming from the guide member 21 are received at the loading station by the rotating frame means 30 so that the rotating frame hand vi30 gives a cylindrical trajectory about the support axis 31. A plurality of objects (here 4
1111) has a roller 32. These rollers 32 are connected to a rotary plate 33 rotatably supported by a support shaft 31.
The rotary plate 33 is rotatably supported on its own axis and is rotated whenever the device is powered on. ) at a predetermined timing.
It is rotated intermittently at an angle of 0/4°=90°.

The rotating frame means 30 receives a cylindrical article between two adjacent rollers 32 (at the loading station located near the upper right in FIG. 1), and transfers it to the gluing station (in FIG. 1). , around the top left),! They are sequentially transported to the output station (lower left in Figure 1). A third detection means (for example, a microswitch) is provided near the gluing station to detect when an article to which a label is to be pasted approaches the gluing station;
In response to the detection signal, the label in the standby state is started to be transferred to the application means.

A third swinging means 40 is provided above the rotating frame means 30. The swinging means 40 is, for example, pivotally mounted P3 to the machine frame. A roller means 41 is rotatably supported at the swinging end of the swinging means 40.

This swinging end is biased downwardly by resilient biasing means (not shown), such as a spring, so that the article 2
2 is positioned at the gluing station from the carry-in station', it is moved by the two rollers 32.
and roller means 41, the first
It is rotated by two rollers 32 which normally rotate clockwise in the figure.

A label coated with adhesive is supplied from the coating means to the rotated article from the left side. At this time, by rotating the article at a speed faster than the label feeding speed, the label is tensioned and the gluing is finished well. For example, the application roller of the first stage of application may be rotated in the direction of the half-hour hand in FIG. 1 via a friction clutch.

15 on which the label is pasted by the rotating frame means 30
The item is moved to an unloading station where it is conveyed via chute 34 to the desired location.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the technical idea of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a schematic side sectional view of an apparatus according to an embodiment of the invention. Explanation of symbols 1 label supply means, 2: multiple feeding prevention means, 3: article, 10: coating means, 11: plate, 12: coating roller, 13
: first swinging means, 14: comb-shaped member, 15: second swinging means, 16: roller, 17: first detection means, 18: second detection means, 20: article conveyance means, 21 : bucket-shaped guide means, 22: article, 30: rotating frame means, 31: support shaft,
32: Roller, 33: Rotating plate, 34: Chute, 40:
Third swinging means, 41: roller,

Claims (1)

[Scope of Claims] [1] Label supply means for stacking and accommodating a plurality of strip-shaped labels and supplying the labels one by one; a tray for storing adhesive; and a tray disposed above the tray. , an applicator roller that receives the adhesive from the tray and applies it to the back side of the label; an applicator that supplies the coated label to the gluing station; A label gluing apparatus comprising: an article conveying means for conveying the pasted article to a discharge station; a) a first swinging motion in which the applying means periodically swings up and down above the application roller; means, and a first groove corresponding to a plurality of grooves provided in the cylindrical surface of the application roller along a plurality of planes perpendicular to the central axis of the application roller.
a plurality of comb-like members on which labels supplied from the label supply means are placed; and a plurality of comb-like members that periodically swing up and down above the comb-like members. a second swinging means; at least one pressing roller supported by the second swinging means and having a plurality of grooves corresponding to the comb-like member; a first detection means that detects when the label passes a position on the upstream side by a predetermined distance from above and stops the movement of the label; and a first detection means that is disposed between the first detection means and the application means. and a second detection means capable of detecting passage of the leading and trailing ends of the label and initiating downward or upward swinging of the first and second swinging means, b) The article conveyance means is rotatably supported around a support shaft, is caused to revolve so as to give a cylindrical surface trajectory, and is spaced apart from each other at equal intervals along the cylindrical surface of the revolution trajectory. c) a rotating frame means having n rollers oriented parallel to the support shaft, which may be rotated whenever the power switch of the device is in the on state; c) the rotating frame; The means includes a carry-in station that receives a cylindrical article, a gluing station that pastes a label coated with an adhesive supplied from the application means onto the article, and a carry-out station that carries out the cylindrical article with the label pasted thereon. d) is arranged above the article conveying means, and is connected to a power source so as to circulate at a predetermined timing and rotate intermittently by an angle of 360/n;
a second rocking means supported so as to be rockable in a direction toward and away from a cylindrical surface given by the orbit of the revolving motion of the book roller; roller means rotatably supported by the swinging end of the second swinging means; and biasing means for elastically biasing the second swinging end to approach the cylindrical orbital surface. e) a cylindrical article received between two adjacent rollers of the n rollers of the rotary frame means is pasted by intermittent rotational movement of the rotary frame means; When being moved to the station, the roller means is pushed up against the biasing force of the biasing means, and the roller means is supported between the two rollers and the roller means supported by the second swinging means. detecting that the cylindrical article has reached the gluing station or just before it reaches the gluing station and initiating the operation of the applicator means to cause a periodic oscillating movement of the first oscillating means; During the downward movement and the downward movement of the periodic oscillating movement of the second oscillating means with a slight delay, the comb tooth-shaped member is caused to enter into the groove of the application roller. A second detection means for placing the label on the toothed member and then pressing the back side of the label against the application roller by the pressing roller to apply adhesive only to the back side of the leading end and trailing end of the label. is provided, whereby the label coated with adhesive is wrapped around a cylindrical article which is being rotated by the rotating roller in the label supply direction at a speed equal to or higher than the label supply speed. f) the article having completed the pasting of the label is delivered to a discharge station during the subsequent intermittent rotation of the rotary frame means; A device for wrapping and gluing.