JP2008239227A - Labeling apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a labeling apparatus capable of enhancing the labeling quality by preventing generation of wrinkles on a label between an adsorbing plate and a holding member when affixing the label to an article having a columnar surface. <P>SOLUTION: The labeling apparatus includes an adsorbing plate 10 for adsorbing a label L from the surface side to an adsorbing surface 12 by protruding the label from both end edges 10a in a direction F orthogonal to the axis of an article W, and rollers 20 as a pair of holding members which are provided on the outer sides of both end edges 10a of the adsorbing plate 10 and hold a projecting part La of the label L projecting from both end edges 10a relative to the article W at the affixing position Y of the adsorbing plate 10 from the surface side. A sheet member 32 is provided, which is interposed between the rollers 20 and the projecting part La of the label L from both end edges 10a of the adsorbing plate 10, and pressed by the rollers 20 at the affixing position Y of the adsorbing plate 10 to press the projecting part La against the article W. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a label sticking apparatus for sticking a label to an article having a cylindrical surface by adsorbing the label to a suction plate.

In general, various labels are affixed to various articles using a label affixing device. For example, as shown in FIG. 5, the cylinder is also applied to an article W having a cylindrical surface Wa. A label L is affixed to the surface Wa.
Conventionally, as this type of label sticking apparatus, for example, as shown in FIG. 6, a label L is stuck on an article W having a cylindrical surface Wa, and a number of suction ports for sucking the label L (see FIG. (Not shown) and an adsorption surface 101 for adsorbing the label L through the sponge 105, and the label L delivered from the label delivery unit (not shown) has both side edges 100a in the direction F perpendicular to the axis P of the article W. A suction position X that protrudes from the surface side of the label L and is moved to a sticking position Y where the sucked label L is stuck to the article W, and outside the side edges 100a of the suction board 100. Each is provided with a pair of pressing members 102 that press the protruding portion La of the label L that is provided from each side edge 100a and presses the article W from the surface side at the attaching position Y of the suction plate 100. . Further, the pressing member 102 abuts on the label L via the sponge 105 in the same manner as the suction plate 100.
The suction plate 100 and the pressing member 102 are supported by the base 104 by being urged toward the product W by a spring 103 so that the suction plate 100 and the presser member 102 can be moved backward by being pressed relatively to the product W at the attachment position Y of the suction plate 100. Has been.

  When the label L is affixed to the article W, as shown in FIG. 6 (a), the label L is sucked to the suction surface 101 at the suction position X of the suction plate 100, and as shown in FIG. 6 (b). Then, the suction plate 100 is moved to the sticking position Y by driving means (not shown), and the sucked label L is stuck on the article W. In this case, at the sticking position Y, the suction plate 100 and the pressing member 102 are relatively pressed against the article and retreat according to the curvature of the cylindrical surface Wa of the article W, and the suction surface 101 and the presser of the suction plate 100. Since the sponge 105 is provided on the contact surface of the member 102 with respect to the label L, the label L is attached along the cylindrical surface Wa of the article W.

Conventionally, as this type of label sticking apparatus, for example, the one described in Patent Document 1 (Japanese Patent Laid-Open No. 2000-326942) is known.
As shown in FIG. 7, this is similar to the above, in which a label L is affixed to an article W having a cylindrical surface Wa, and a turret type suction surface 101 for sucking the label L is provided. The label L delivered from (not shown) is protruded from both side edges 100a in the direction F perpendicular to the axis P of the article W, and the adsorption position X and the adsorbed label L adsorbed from the surface side are adsorbed on the adsorption surface 101. The suction plate 100 that is moved to the sticking position Y to be attached to the article W, and the protruding portion La of the label L that is provided outside the both side edges 100a of the suction plate 100 and protrudes from the both side edges 100a are provided on the suction plate. A pair of pressing members 102 that are pressed against the article W from the front surface side at a pasting position Y of 100 are configured. The suction plate 100 is supported by being biased toward the article W by a biasing means (not shown) so that the suction plate 100 can be retracted by being relatively pressed against the article W at the attaching position Y of the suction plate 100. . The pressing member 102 is configured by a roller that rotates about a rotation axis in a direction along the axis P of the article W, and the roller is attached to a tip of a leaf spring 107 that extends from a base 106 that moves relative to the suction plate 100. It is provided so that rotation is possible.

  When the label L is affixed to the article W, as shown in FIG. 7A, the label L is adsorbed to the adsorption surface 101 at the adsorption position X of the adsorption plate 100, as shown in FIG. 7B. Then, the suction plate 100 is moved to the sticking position Y by driving means (not shown), and the sucked label L is stuck on the article W. In this case, at the sticking position Y, the central portion of the label L is stuck to the article W by the suction plate 100. In addition, the pressing member 102 made of a roller is pressed relatively to the article W and rolls along the curvature of the cylindrical surface Wa of the article W, whereby the protruding portion La of the label L is formed on the article W. Affixed to the cylindrical surface Wa.

JP 2000-326942 A

By the way, in each conventional label sticking device, the center portion of the label L is stuck to the article W by the suction plate 100, and the label L is projected by the presser member 102 (the former) and the presser member 102 (the latter) composed of rollers. Although the portion La is stuck to the article W, since there is a gap between the suction plate 100 and the pressing member 102, the label L at this portion is not sufficiently pressed, and FIG. 6 (b). And as shown in FIG.7 (b), there existed a problem that the wrinkle S was easy to arise in the label L, the sticking quality was impaired, and the external appearance quality of the articles | goods W was reduced.
Further, when a bar code or the like that can be read by the optical reader is displayed on the display portion where the wrinkles S of the label L are generated, there is a problem that the optical reader cannot read or read the barcode.

The present invention has been made in view of the above-described problems, and provides a label sticking device that prevents wrinkles on the label between the suction plate and the pressing member and improves the sticking quality of the label. For the purpose.

In order to solve the above problems, a label sticking device of the present invention is a label sticking device for sticking a label to an article having a cylindrical surface, and includes a suction surface having a number of suction ports for sucking the label. The label delivered from the label delivery unit is projected from both side edges in the direction perpendicular to the axis of the article, and moved to the adsorption position for adsorbing the adsorption surface from the surface side and the adhering position for adhering the adsorbed label to the article A pair of suction plates, and a pair of labels that are provided outside the both side edges of the suction plate and that protrude from the both side edges to press against the article at the attachment position of the suction plate from the front side. In a label sticking device provided with a pressing member,
Protruding from both side edges of the suction plate, interposed between the pressing member and the protruding portion of the label, and pressed by the pressing member at the adhering position of the suction plate, the protruding portion is used as an article. It has the structure which has the sheet | seat member pressed against.

  Thereby, when sticking a label to an article, first, the suction plate sucks the label at the suction position. In this case, the protruding portions of the labels are protruded on the outer sides of both side edges of the suction plate, respectively, and face the sheet member. Next, the suction plate is moved from the suction position to the sticking position. At this sticking position, the center portion of the label is stuck to the article by the suction plate, and the pressing member is relatively pressed against the article, so that the protruding portion of the label is stuck along the cylindrical surface of the article. In this case, the protruding portion of the label is in contact with the sheet member, and even if there is a gap between the suction plate and the pressing member, the sheet member is interposed therebetween, so the label is pressed by the sheet member. As a result, the situation where the label is wrinkled is prevented. For this reason, the sticking quality of the label is improved, and the appearance quality of the article is improved.

  If necessary, the suction plate includes a suction plate main body and a cushion member attached to the suction plate main body and constituting a suction surface. Since the cushion member bends at the sticking position of the suction plate, the sticking surface of the label is stuck along the cylindrical surface of the article, and the sticking is surely performed.

  If necessary, the suction plate includes a suction plate body, a cushion member attached to the suction plate body, and a sheet member attached to the cushion member and constituting a suction surface, and the seat The member is extended in a direction perpendicular to the axis of the article, and the sheet member is constituted by both ends of the sheet member. Since the label is pressed in contact with the entire sheet member, it is possible to further prevent the label from becoming wrinkled. For this reason, the sticking quality of the label is improved, and the appearance quality of the article is improved.

  Further, if necessary, the pressing member is constituted by a roller that rotates around a rotation axis in a direction along the axis of the article, and the roller rolls along the cylindrical surface of the article at the attachment position of the suction plate. It is set as the structure provided with the rolling mechanism to be made. Since the protruding portion of the label is pressed by the roller, the label is stretched, and in combination with the sheet member, a situation where the label is further wrinkled is prevented. For this reason, the sticking quality of the label is improved, and the appearance quality of the article is improved.

In this case, the suction plate is supported by the base so that it can be retracted by being relatively pressed against the article at the sticking position of the suction plate, and the rolling mechanism is a roller at one end via the rotating shaft. Is supported, and an arm whose other end is pivotally supported by the base so that the roller can roll outward from the side edge side of the suction plate, and the arm on the side edge side of the suction plate A spring that urges toward the object, and the roller is relatively pressed against the article and resists the urging force of the spring when the suction plate is pushed against the article and moves backward. It is effective to roll and press the cylindrical surface of the article to which the label is attached via the sheet member. Simple mechanism and reliable operation.

According to the label sticking device of the present invention, at the sticking position of the suction plate, the central portion of the label is stuck to the article by the suction plate, the pressing member is pressed relatively to the article, and the protruding portion of the label is attached to the article. Although the label is attached, the protruding portion of the label is in contact with the sheet member, and even if there is a gap between the suction plate and the pressing member, the sheet member is interposed between them, so the label is the sheet member. As a result, the label is prevented from being wrinkled. For this reason, the sticking quality of the label can be improved, and the appearance quality of the article can be improved.
In addition, since wrinkles of the label do not occur, problems such as erroneous reading and reading with an optical reader can be avoided even when a barcode or the like is displayed on the surface of the label.

Hereinafter, based on an accompanying drawing, a label sticking device concerning an embodiment of the invention is explained in detail.
The label sticking device according to the embodiment of the present invention shown in FIGS. 1 to 3 sticks a label L to an article W having a cylindrical surface Wa having a radius of curvature R as shown in FIG. .
As shown in FIG. 2, the label sticking device according to the embodiment includes a label sending unit 1 that sends a label L. The label sending unit 1 peels and sends the label L from the belt-like mount D to which the label L is temporarily attached, and the label L is fed from the belt-like mount D supplied to the transport path from a supply reel (not shown) by the peeling plate 2. Is peeled off, and the belt-like mount D from which the label L is peeled off is taken up by a take-up reel (not shown). The peeling plate 2 peels off the label L having a rigidity higher than that of the belt-like mount D from the belt-like mount D by folding back the belt-like mount D that has been transported along the mount transport path. In particular, the label sending unit 1 is provided so as to send the label L in a direction along the axis P (FIG. 5) of the article W. In FIG. 2, reference numeral 3 is a thermal head for printing on a label L, and 4 is a platen.

Moreover, the label sticking apparatus is provided with a suction plate 10 for sucking the label L as shown in FIGS. Specifically, the suction plate 10 includes a suction plate main body 11, a cushion member 33 attached to the suction plate main body 11, and a suction surface 12 attached to a lower layer of the cushion member 33 and made of synthetic resin, metal, or the like and in contact with the label L. And a sheet member 32 having the structure. A suction port 11 a is formed in the suction plate main body 11, the cushion member 33 and the seat member 32.
With the above configuration, the suction plate 10 sucks the label L to the suction surface 12 of the sheet member 32 through the cushion member 33 and the sheet member 32 by suction of the suction plate 10.
The adsorption plate 10 adsorbs the label L delivered from the label delivery unit 1 by protruding from both side edges 10a in the direction F perpendicular to the axis P of the article W and substantially along the cylindrical surface Wa of the article W. The suction position X that is attracted to the surface 12 from the front side and the label L that is attracted to the surface 12 are moved to the pasting position Y where the label W is pasted on the article W.

The suction plate 10 is supported by the base 14 so that it can be moved backward by being pressed relatively to the article W at the sticking position Y, and is urged toward the article W by the spring 13.
The suction plate 10 is moved to the suction position X and the sticking position Y by the air cylinder device 15 including the cylinder 15a and the piston 15b. The cylinder 15a of the air cylinder device 15 is supported by a machine base 16 (FIG. 2), and a base 14 supporting the suction plate 10 is attached to the tip of the piston 15b.
Further, as shown in FIG. 2, an air ejection pipe 17 that assists the adsorption of the label L by the adsorption plate 10 is provided in the vicinity of the separation plate 2 at the adsorption position X of the adsorption plate 10. The air ejection pipe 17 injects air from the back side of the label L peeled from the peeling plate 2 toward the suction plate 10 side.

  Furthermore, on the outside of the side edge 10 a of the suction plate 10, the protruding portion La of the label L projected from the side edge 10 a is from the surface side with respect to the article W at the sticking position Y of the suction plate 10. A pair of pressing members to be pressed is provided. The pressing member is composed of a roller 20 that rotates about a rotation shaft 21 in a direction along the axis P of the article W. In addition, at the sticking position Y of the suction plate 10, the roller 20 as a pressing member is rolled along the cylindrical surface Wa of the article W by the rolling mechanism 22.

  One end of the rolling mechanism 22 is supported by the roller 20 via the rotation shaft 21, and the other end is arranged so that the roller 20 can roll outward from the side edge 10 a side of the suction plate 10. The arm 23 is pivotally supported by the base 14, and a coil spring 24 that biases the arm 23 toward the side edge 10 a of the suction plate 10. Specifically, a pair of arms 23 is provided on each of the left and right sides, and as shown in FIG. 2, the pair of arms 23 is disposed at a predetermined interval and supports the rotating shaft 21 at one end thereof. The roller 20 is divided and includes a central roller 20 a provided between the pair of arms 23 and two end rollers 20 b and 20 c provided outside the pair of arms 23. The other end of the arm 23 is pivotally supported by the upper end of a support rod 25 erected on the upper surface of the base 14, and the coil springs 24 correspond to the left and right arms 23 as shown in FIG. It is erected between them.

  When the label L is applied to the cylindrical surface Wa of the article W, the sheet member 32 is placed between the roller 20 and the protruding portion La of the label L from the side edge 10a of the suction plate 10 at the application position Y. The roller 20 is pressed against the article W and rolls against the urging force of the coil spring 24 when the suction plate 10 moves backward while being pushed against the article W. The cylindrical surface Wa of the article W to which the label L is attached is pressed through the member 32.

  Further, the width of the suction plate 10 in the direction F perpendicular to the axis P of the article W is H, the radius of curvature of the article W is R, and the maximum deflection amount of the cushion member 33 at the attachment position Y of the suction plate 10 is Δt (cushion member 33 The width H of the suction plate 10 is determined by the following equation. Thereby, the relationship between the width H of the suction plate 10 and the deflection of the cushion member 33 becomes appropriate, and the label L is reliably attached along the cylindrical surface Wa of the article W.

Therefore, according to the label sticking apparatus according to this embodiment, the label L is stuck to the article W as follows.
First, as shown in FIG. 2, the suction plate 10 is positioned at the suction position X, and in this state, the label L is transported in a state where the label L is temporarily attached to the belt-like mount D, The label L is peeled off by the peeling plate 2 and sent out. As a result, the delivered label L is sucked by the suction plate 10. In this case, the protruding portion La of the label L is protruded outside the both side edge 10 a of the suction plate 10 and faces the sheet member 32.

  Next, as shown in FIGS. 1 and 2, the air cylinder device 15 is operated, and the suction plate 10 is moved from the suction position X to the sticking position Y. At the sticking position Y, the central portion of the label L is stuck to the article W by the suction plate 10. In this case, since the cushion member 33 is interposed between the suction plate main body 11 and the seat member 32 of the suction plate 10, the cushion member 33 is bent by the pressing force of the air cylinder device 15, and the seat member 32. The suction surface 12 follows the cylindrical surface Wa of the article W, whereby the center portion of the label L is stuck along the cylindrical surface Wa of the article W.

Further, in this case, the roller 20 as a pressing member is relatively pressed against the article W via the sheet member 32 and rolls according to the curvature of the cylindrical surface Wa of the article W, and therefore the cylindrical surface Wa of the article W. Thus, the protruding portion La of the label L is stuck along the cylindrical surface Wa of the article W. In this case, since the label L is in contact with the entire sheet member 32, even if there is a gap between the suction plate 10 and the roller 20, the sheet member 32 is interposed between the labels L. Since the sheet member 32 is pressed, the situation where the label L is wrinkled is prevented. For this reason, the sticking quality of the label L is improved, and the appearance quality of the article W is improved.
When the sticking is finished, the air cylinder device 15 is operated, and the suction plate 10 is moved from the sticking position Y to the suction position X and returned to the original position.

  In the above embodiment, the sheet member 32 is configured by the sheet member 32 attached to the suction plate body 11 of the suction plate 10 via the cushion member 33. However, the present invention is not necessarily limited to this. As shown in FIG. 4, it may be changed as appropriate, such as being attached to the side surface of the suction plate 10 and sucking the label L via the cushion member 33. In the above embodiment, the pressing member is constituted by the roller 20, but the pressing member is not necessarily limited to this, and may be applied to the conventional pressing member 102 shown in FIG. Absent.

It is a front view which shows the label sticking apparatus which concerns on embodiment of this invention. It is a side view which shows the label sticking apparatus which concerns on embodiment of this invention. It is a bottom view which shows the suction plate of the label sticking apparatus which concerns on embodiment of this invention. In the label sticking apparatus which concerns on embodiment of this invention, it is a front view which shows another example of attachment of a pressing sheet. It is a perspective view which shows the example of the articles | goods to which the label sticking apparatus which concerns on embodiment of this invention is applied. It is a figure which shows an example of the conventional label sticking apparatus. It is a figure which shows another example of the conventional label sticking apparatus.

Explanation of symbols

W Article Wa Cylindrical surface R Curvature radius P Axis L Label La Protruding part D Strip mount 1 Label sending part 2 Release plate 10 Adsorption plate 10a Side edge 11 Adsorption plate body 11a Suction port 12 Adsorption surface F Direction perpendicular to the axis of the item X suction position Y sticking position 13 spring 14 base 15 air cylinder device 17 air ejection pipe 20 roller (pressing member)
21 Rotating shaft 22 Rolling mechanism 23 Arm 24 Coil spring 32 Seat member 33 Cushion member H Suction plate width Δt Maximum deflection amount of cushion member

Claims (5)

A label affixing device for affixing a label to an article having a cylindrical surface, comprising a suction surface having a plurality of suction ports for sucking the label, and a label sent from a label sending part orthogonal to the axis of the article A suction plate that protrudes from both side edges in the direction to be sucked and is sucked to the suction surface from the surface side, and a suction plate that is moved to a sticking position for sticking the sucked label to an article, and the both side edges of the suction plate In a label sticking device provided with a pair of pressing members that are provided on the outer side and pressed from the front side against the article at the sticking position of the suction plate, the protruding portions of the label that are protruded from both side edges,
Protruding from both side edges of the suction plate, interposed between the pressing member and the protruding portion of the label, and pressed by the pressing member at the adhering position of the suction plate, the protruding portion is used as an article. A label sticking device comprising a sheet member that presses against a label member.   3. The label sticking device according to claim 2, wherein the suction plate includes a suction plate body and a cushion member attached to the suction plate body and constituting a suction surface.   The adsorption plate includes an adsorption plate main body, a cushion member attached to the adsorption plate main body, and a sheet member attached to the cushion member and constituting an adsorption surface, and the sheet member is an axis of the article The label sticking device according to claim 2, wherein the sheet member is formed by extending both ends of the sheet member.   The pressing member includes a roller that rotates around a rotation axis in a direction along the axis of the article, and includes a rolling mechanism that rolls the roller along the cylindrical surface of the article at a sticking position of the suction plate. The label sticking device according to any one of claims 1 to 3, wherein   The suction plate is supported by the base so that the suction plate is relatively pressed against the article at the sticking position of the suction plate so that the suction plate can be retracted, and the roller is supported at one end via the rotating shaft. An arm whose other end is pivotally supported on the base so that the roller can roll outward from the side edge side of the suction plate, and the arm is attached to the side edge side of the suction plate. And when the suction plate is pressed against the article and moves backward, the roller is pressed against the article and rolls against the urging force of the spring. The label sticking device according to claim 4, wherein the cylindrical face of the article to which the label is stuck is pressed through the sheet member.

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