JP2007246135A - Label sticking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a label sticking operation to be positively carried out while preventing a pressing member from striking against an item when the item is transferred to a sticking position, preventing either the item or the pressing member from being damaged or the item from being moved to cause its sticking position to be displaced. <P>SOLUTION: This label sticking device is used for sticking a label L to an item W transferred by a conveyor C during its transferring step. This label sticking device comprises an chucking member 10 for blowing the chucked label L against the item W by the injection of air and sticking it to the item, and a sheet-like flexible pressing member 20 supported by a supporting member 21 to press the label L sticking to the item W. There is provided a driving part 30 for retracting the pressing member 20 toward the supporting member 21 when the chucking member 10 chucks the label L, supporting the upstream side 23 of the pressing member 20 in the transferring direction of the item W to the supporting member 21 so as to be hung from the supporting member 21 and press against the item W when the chucking member 10 blows off the label L to the item W and sticks it to the item W, retracting and hanging down the pressing member 20. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a label attaching apparatus that automatically attaches a label to an article being conveyed by a conveyor, and more particularly, to a label attaching apparatus that includes an adsorbent that sprays and attaches a label.

Conventionally, as this kind of label sticking device, for example, one disclosed in Japanese Patent Application Laid-Open No. 61-178827 (Patent Document 1) is known.
As shown in FIG. 10, the article W is conveyed by the conveyor C, and in this conveyance process, the label L is affixed to the article W. The label L temporarily attached to the belt-like mount D is peeled off at equal intervals. The peeling plate 100 to be peeled off, and the peeled label L provided near the downstream side of the peeling plate 100 are adsorbed by suction of air from the suction device 101 and the adsorbed label L to the article W of the press 102 An adsorbent body 103 that is sprayed and pasted by blowing air, and a pressing member that presses the sprayed label L made of a sheet-like elastic body suspended and fixed from the downstream side of the adsorbent body 103 against the article W by its elasticity. 104.

  When the label L is stuck to the article W by this label sticking device, first, the label L is peeled off by the peeling plate 100 and the label L is sucked by the adsorbent 103. Next, when the article W is conveyed to a predetermined position, the label L adsorbed by the adsorbent 103 is sprayed on and pasted on the article W. After that, by moving the article W by the conveyor C, the leading end La of the label L attached to the article W reaches the pressing member 104, and the label L is pressed against the article W by the elasticity of the pressing member 104, and the subsequent article The entire label L is pressed and affixed to the article W by the transport movement of W.

Japanese Patent Laid-Open No. 61-178827

  However, in the conventional label affixing device, the label L is pressed against the article W by the sheet-like pressing member 104 after labeling, but the pressing member 104 is suspended from the downstream side of the adsorbent 103. Since the article W is fixed at all times, the end of the article W hits the pressing member 104 when the article W is transported to the affixing position. Therefore, the article W or the pressing member 104 is damaged, or the article W moves to move the label L. There was a problem that the sticking position might shift. In particular, when the article W is light and small, the article W is easy to move, and the positional deviation may be noticeable.

  The present invention has been made in view of the above problems, and prevents the end of the article from hitting the sheet-like pressing member when the article is transported to the affixing position. A label sticking device that is capable of pressing and preventing the situation where the article or the pressing member is damaged or the article is moved and the sticking position of the label is shifted so that the label sticking can be performed reliably. The purpose is to provide.

  In order to solve the above-described problems, a label sticking device of the present invention is a label sticking device for sticking a label to an article conveyed by a conveyor in the course of conveying the article, and sucks the supplied label by suction of air. And an adsorbent for spraying and adhering the adsorbed label to the article by blowing air and a support positioned above the label affixed to the article and pressing the label affixed to the article In a label sticking apparatus provided with a sheet-like flexible pressing member, the upstream side portion of the pressing member is supported by the support body, and when the adsorbing body sucks the label, the downstream side of the pressing member. When the adsorbent is sprayed and affixed to the article, the downstream side of the pressing member is suspended from the support and pressed against the article. And a configuration in which a suspension with a drive unit for a predetermined time causes the members retract and the interconnection made.

Thereby, when affixing a label to an article, first, the label supplied to the adsorbent is adsorbed and the article is conveyed to the affixing position. In this case, since the pressing member is retracted to the support side, there is no situation where the pressing member hits the article when the article is transported to the attachment position. Therefore, the article or the pressing member is damaged, or the article moves and is labeled. The situation where the sticking position of the sheet is shifted is prevented.
And in the sticking position of this article | item, an adsorbent sticks the adsorbed label by spraying on the article | item by the ejection of air. When the adsorbent sprays the label on the article, the downstream portion of the pressing member is suspended from the support and the label attached to the article is pressed against the article by the drive unit. In this case, since the pressing member is suspended for a predetermined time by the drive unit, the pressing member can be brought into sliding contact with the label for an appropriate time for a predetermined time by the conveyance of the article. Therefore, the pressing member slides on the label and presses the label well, so that the label is securely attached. In other words, since the sheet-like pressing member advances and presses the label only when necessary, label sticking can be prevented by preventing damage to the article and the pressing member or shifting of the label attaching position due to movement of the article. It can be done reliably.

  And, if necessary, the drive unit is configured as the support, and the upstream side portion of the pressing member is supported on the surface, and at least the downstream side portion of the pressing member is sucked to make the pressing member flat on the surface. A suction plate provided with a plurality of suction ports to be adsorbed on, a hollow holding body to which the suction plate is attached, and an air inlet / outlet provided in the holding body for sucking air in the holding body and sucking the air An air supply / suction device that adsorbs the pressing member to the surface through the mouth and retracts the air and blows air into the holding body to eject air from the suction port to suspend the pressing member. ing. The drive unit adsorbs the pressing member to the suction plate, retracts it, releases it, and suspends it, so that the sheet-like flexible pressing member can be reliably retracted and suspended, ensuring reliable operation. can do.

  In this case, it is effective that the drive unit is provided with a spring that supports the upstream side portion of the pressing member supported by the suction plate and biases the pressing member in the backward direction. Since the movement of the pressing member to the retracted position can be assisted, the operation can be performed smoothly.

  Further, if necessary, the adsorbent may be provided with a suction plate provided with a number of suction ports and capable of adsorbing a label, a hollow holding body to which the suction plate is attached, and air in the holding body provided on the holding body. An air inlet / outlet connected to an air supply / suction device that sucks the label through the suction port and blows air into the holding body to blow out air from the suction port to blow the label against the article. A suction plate of the adsorbing body is used as a support, and a through hole corresponding to the suction port of the adsorbing body is formed in a general portion excluding the downstream end of the pressing member. The surface of the general part is configured as an adsorption surface of the label, and the adsorbent and the air supply / suction device for the adsorbent are configured as a drive unit for the pressing member.

Thereby, when affixing a label on an article, first, the label is adsorbed on the surface of the pressing member adsorbed on the suction plate of the adsorber, and the article is conveyed to the affixing position. In this case, since the pressing member is attracted and retracted by the suction plate of the adsorbent, there is no situation where the pressing member hits the article when the article is transported to the affixing position, and therefore the article or the pressing member may be damaged. The situation where the article moves and the label attaching position shifts is prevented.
And in the sticking position of this article | item, an adsorbent sticks the adsorbed label by spraying on the article | item by the ejection of air. When the adsorbent sprays the label on the article, the downstream side portion of the pressing member adsorbed on the suction plate of the adsorbent is also sprayed on the article side, and the label hung from the suction plate and attached to the article is attached to the article. Press on. In this case, the pressing member can be brought into sliding contact with the label for an appropriate period of time by conveying the article. Therefore, the pressing member slides on the label and presses the label well, so that the label is securely attached. In other words, since the sheet-like pressing member advances and presses the label only when necessary, it is possible to prevent the situation where the article or the pressing member is damaged or the article is moved and the label sticking position is shifted, thereby applying the label. It can be done reliably.

Further, when the adsorbent sprays the label on the article, the pressing member also moves in opposition to the label and presses the label against the article, so that the label affixed to the article can be reliably pressed and pasted. . In particular, in the type of label that weakens the adhesive strength of the glue on the back side of the label or is easy to peel off without applying glue on the leading edge of the label, it is difficult to warp, and there is a pressing member on the back side of the label leading edge. Since the label does not come into contact, the label can be reliably affixed without the label being bent in reverse and the leading end of the label being crushed or the label being wound around the machine side.
Further, in this configuration, the adsorbent and the air supply / suction device for the adsorbent are configured as the drive unit of the pressing member, so that the device can be used together, and the structure can be simplified and the cost can be reduced. There is also an advantage of being able to do it.

  Furthermore, if necessary, the adsorbent is provided with a suction plate provided with a number of suction ports and capable of adsorbing a label, a hollow holding body to which the suction plate is attached, and a holding body provided in the holding body. An air inlet / outlet port connected to an air supply / suction device for sucking air and adsorbing the label through the suction port and blowing air into the holding body and blowing air from the suction port to blow the label against the article And a predetermined range at the downstream end of the suction plate of the adsorbent is configured as a support for the pressing member, and the surface upstream of the predetermined range of the suction plate is used as the label suction surface. At the same time, the adsorbent and the air supply / suction device for the adsorbent are configured as a drive unit for the pressing member.

Thereby, when affixing a label to an article, first, the label supplied to the adsorbent is adsorbed and the article is conveyed to the affixing position. In this case, since the pressing member is attracted and retracted by the suction plate of the adsorbent, there is no situation where the pressing member hits the article when the article is transported to the affixing position, and therefore the article or the pressing member may be damaged. The situation where the article moves and the label attaching position shifts is prevented.
And in the sticking position of this article | item, an adsorbent sticks the adsorbed label by spraying on the article | item by the ejection of air. When the adsorbent sprays the label on the article, the downstream side portion of the pressing member adsorbed on the suction plate of the adsorbent is also sprayed on the article side, and the label hung from the suction plate and attached to the article is attached to the article. Press on. In this case, the pressing member can be brought into sliding contact with the label for an appropriate period of time by conveying the article. Therefore, the pressing member slides on the label and presses the label well, so that the label is securely attached. In other words, since the sheet-like pressing member advances and presses the label only when necessary, it is possible to prevent the situation where the article or the pressing member is damaged or the article is moved and the label sticking position is shifted, thereby applying the label. It can be done reliably.

  According to the label sticking device of the present invention, when the label is sucked by the adsorbent and the article is transported to the sticking position, the pressing member is retracted to the support side, so that the pressing member does not hit the article. For this reason, it is possible to prevent a situation in which the article or the pressing member is damaged or the article moves and the label attaching position is shifted. Further, when the adsorbent sprays the label onto the article, the drive unit suspends the downstream portion of the pressing member from the support and presses the label attached to the article against the article for a predetermined time. By moving, the pressing member can be brought into sliding contact with the label for an appropriate period of time. Therefore, the pressing member slides on the label and presses the label well, so that the label can be reliably attached. In other words, since the sheet-like pressing member advances and presses the label only when necessary, label sticking can be prevented by preventing damage to the article and the pressing member or shifting of the label attaching position due to movement of the article. It can be done reliably.

Hereinafter, based on an accompanying drawing, a label sticking device concerning an embodiment of the invention is explained in detail.
1 to 3 show a label sticking device according to a first embodiment of the present invention. The label sticking device is a device for sticking a label L to an article W transported by a conveyor C in the course of transporting the article W. The supply reel supplies a belt-like mount D to which the label L is temporarily attached at equal intervals. (Not shown), a label peeling portion 2 (FIG. 3 (a)) including a peeling plate 1 for peeling the label L from the belt-like mount D by folding the belt-like mount D at the tip, and the label peeling portion 2 And a take-up reel (not shown) for winding the belt-like mount D from which the label L has been peeled off.

  Moreover, the label sticking device according to the first embodiment of the present invention includes an adsorbing body 10 that is provided in the vicinity of the downstream side of the label peeling unit 2 and that adsorbs the label L. The adsorbing body 10 includes a suction plate 13 having a large number of suction ports 11 for sucking the label L, a hollow box-shaped holding body 14 to which the suction plate 13 is attached, and an air inlet / outlet port 15 provided in the holding body 14. It is prepared for. The air in the holding body 14 is sucked into the air inlet / outlet 15 to adsorb the label L through the suction port 11, and air is blown into the holding body 14 to blow out the air from the suction port 11, thereby causing the label L Is connected to the piping of the air supply / suction device 17 (A1).

  The adsorbing body 10 includes an adsorbing position X (FIG. 3 (a)) where the adsorbing body 10 adsorbs the label L from the label peeling unit 2 and a pasting position Y (FIG. 3 (b)) where the label L is applied to the article W by spraying. (C)) is provided on a machine base (not shown) so as to be vertically movable at two positions. Specifically, the holding body 14 is attached to an air cylinder device 16 that moves up and down to the suction position X and the sticking position Y.

  Moreover, the label sticking device according to the first embodiment of the present invention is a sheet-like shape that presses the label L that is supported by the support 21 positioned above the label L that is stuck to the article W and is stuck to the article W. The flexible pressing member 20 is provided. The pressing member 20 is formed in a rectangular shape that is substantially the same as the size of the suction plate 13 of the adsorbent 10. Examples of the material of the pressing member 20 include rubber and plastic resin.

In this embodiment, the support 21 is composed of the suction plate 13 of the adsorbent 10. Then, when the adsorbing body 10 adsorbs the label L, the pressing member 20 retracts the downstream side portion 22 of the pressing member 20 on the downstream side in the conveyance direction of the article W to the support body 21 side, and the adsorbing body 10 becomes the label L. Is attached to the article W so that the downstream side portion 22 is suspended from the support 21 and attached to the article W when the upstream side portion 23 of the pressing member 20 is upstream. It is supported by the support 21. For example, the upstream side portion 23 of the pressing member 20 is bonded and fixed to the support body 21.
Further, a through hole 25 corresponding to the suction port 11 of the adsorbing body 10 is formed in the general portion excluding the downstream end 24 of the pressing member 20, and the surface of the general portion of the pressing member 20 is adsorbed to the label L. It is configured as a surface 12. The downstream end 24 of the pressing member 20 is sucked by the suction port 11 provided at the downstream end 10 a of the adsorbent 10.

  Furthermore, in the embodiment, a drive unit 30 that retracts and suspends the pressing member 20 and holds the suspension for a predetermined time is provided. The drive unit 30 includes an adsorbent 10 and an air supply / suction device 17 for the adsorbent 10. That is, the drive unit 30 is configured as a support body 21 and the upstream side portion 23 of the pressing member 20 is supported on the surface, and at least the downstream side portion 22 of the pressing member 20 is sucked so that the pressing member 20 is planar on the surface. A suction plate 13 (33) provided with a plurality of suction ports 11 (31) to be adsorbed to the substrate, a hollow holding body 14 (34) to which the suction plate 13 (33) is attached, and a holding body 14 (34). It is connected to the air inlet / outlet 15 (35), and sucks the air in the holding body 14 (34) and adsorbs the pressing member 20 to the surface through the suction port 11 (31) to move backward. (34) An air supply / suction device 17 (37) is provided, which blows air into the interior and blows out air from the suction port 11 (31) to suspend the pressing member 20. In this configuration, since the adsorber 10 and the air supply / suction device 17 of the adsorber 10 are configured as the drive unit 30 of the pressing member 20, the apparatus can also be used, and the structure can be simplified and the cost can be reduced. Can be achieved.

Therefore, when the label L is pasted on the article W by the label pasting apparatus according to the first embodiment of the present invention, it is as follows.
As shown in FIG. 3A, at the adsorption position X of the adsorbent 10, the pressing member 20 is adsorbed to the adsorbent 10 by the air suction of the air supply and suction device 17 (37), and the surface thereof is The suction surface 12 of the label L is configured. In this state, a belt-like mount D temporarily attached with a plurality of labels L at equal intervals is supplied, and the belt-like mount D is folded back at the tip of the peeling plate 1 at the suction position X of the adsorbing body 10. The label L temporarily attached to D is peeled off, proceeds toward the adsorbent 10, and the label L is adsorbed by suction of air from the suction port 11 (31) of the adsorbent 10 and the through hole 25 of the pressing member 20. It is attracted to the attracting surface 12 of the pressing member 20 attracted to the surface.

  Then, as shown in FIG. 3B, the air cylinder device 16 is activated, the adsorbing body 10 is positioned at the sticking position Y, and the article W is predetermined in a state where the label L is adsorbed to the adsorbing body 10. Transported to position. In this case, since the pressing member 20 is attracted and retracted by the suction plate 13 (33) of the adsorbing body 10, there is no situation where the pressing member 20 hits the article W when the article W is transported to the pasting position Y. Therefore, the situation where the article W and the pressing member 20 are damaged or the article W moves and the sticking position Y of the label L shifts is prevented.

  Next, as shown in FIGS. 1 and 3B, for example, based on detection by a sensor (not shown), the adsorbent 10 causes the air supply and suction device 17 (37) to suck the adsorbed label L against the article W. Affixed by spraying with air blowout. When the adsorbing body 10 sprays the label L onto the article W, the label L is sprayed onto the article W by the ejection of air from the suction port 11 (31) of the adsorbing body 10 and the through hole 25 of the pressing member 20, The downstream portion 22 of the pressing member 20 adsorbed to the suction plate 13 (33) of the adsorbent 10 is also blown to the article W side, and a label L that is suspended from the suction plate 13 (33) and attached to the article W is attached. The article W is pressed.

  In this case, as shown in FIG. 2 and FIG. 3 (c), the pressing member 20 is applied to the label L for an appropriate period of time by the air supply and suction device 17 (37) ejecting together with the conveyance movement of the article W. Can be in sliding contact. Therefore, the pressing member 20 is slidably brought into contact with the label L and presses the label L well, so that the label L is securely attached. Further, since the pressing member 20 has a rectangular sheet shape, the label L can be pressed evenly, the pressing can be further ensured, and the label L can be reliably attached.

  Further, when the adsorbent 10 sprays the label L onto the article W, the pressing member 20 also moves in opposition to the label L and presses the label L against the article W. Therefore, the label L attached to the article W is removed. Can be securely pressed and pasted. In particular, the label L of the type that weakens the adhesive strength of the glue on the back surface of the label L or is easy to peel off without applying glue to the tip of the label L is less likely to warp, and the back side of the tip of the label L The pressing member 20 does not come into contact with the label L, so that the label L is securely affixed without the label L being bent in reverse and the leading end of the label L being crushed or the label L being wound around the machine side. be able to.

  If the pressing member 20 is pressed for the required time, the air cylinder device 16 is actuated again, and the adsorbing body 10 moves backward and is positioned at the adsorbing position X. Further, suction is performed by the air supply / suction device 17 (37), and the pressing member 20 is attracted to the adsorbent 10 by the elastic force of the pressing member 20. In this way, the label L is sequentially applied.

  4 to 6 show a label sticking device according to a second embodiment of the present invention. As for this, the press member 20 is provided in the adsorption body 10 similarly to said 1st embodiment. Unlike the first embodiment, a predetermined range e of the downstream end 13a of the suction plate 13 (33) of the adsorbent 10 is configured as a support 21 of the pressing member 20. On the other hand, the surface upstream of the predetermined range e of the suction plate 13 (33) is configured as an adsorption surface 12 that adsorbs the label L.

  The pressing member 20 is formed in a rectangular shape having a size within a predetermined range e of the downstream end 13a of the suction plate 13 (33) of the adsorbing body 10, and the upstream end 26 of the pressing member 20 is the adsorbing body. 10 suction plates 13 (33). The pressing member 20 is provided with a suction port provided at the downstream end 13a of the adsorbing body 10 when the adsorbing body 10 adsorbs the label L by suction or ejection of air from the air supply / suction device 17 (37). The suction port 11 (31 provided at the downstream end 13a of the adsorbent 10 when the adsorbent 10 sprays and affixes the label L onto the article W when it is sucked by the eleventh (31) and retracted toward the support 21. ) And is suspended from the support 21 and brought into contact with the article W.

Similar to the first embodiment, the adsorbent 10 and the air supply / suction device 17 (37) of the adsorbent 10 are configured as the drive unit 30 of the pressing member 20.
Further, in the drive unit 30, the upstream end portion 26 of the pressing member 20 supported by the suction plate 13 (33) and supported by the suction plate 13 (33) is supported, and the pressing member 20 is attached in the backward direction. A spring 40 is provided. The spring 40 is supported by a support shaft 41 that crosses the suction plate 13 (33).

Therefore, when the label L is stuck on the article W by the label sticking apparatus according to the second embodiment of the present invention, it is as follows.
As shown in FIG. 6A, at the suction position X of the adsorbing body 10, the pressing member 20 is adsorbed to the suction port 11 (31) of the adsorbing body 10 by the air suction of the air supply and suction device 17 (37). Has been. In this state, a belt-like mount D temporarily attached with a plurality of labels L at equal intervals is supplied, and the belt-like mount D is folded back at the tip of the peeling plate 1 at the suction position X of the adsorbing body 10. The label L temporarily attached to D is peeled off, proceeds toward the adsorbing body 10, and the label L is adsorbed to the adsorbing surface 12 of the adsorbing body 10 by suction of air from the suction port 11 of the adsorbing body 10.

  Then, as shown in FIG. 6B, the air cylinder device 16 operates, the adsorber 10 is positioned at the sticking position Y, and the article W is predetermined in a state where the label L is adsorbed to the adsorber 10. Transported to position. In this case, since the pressing member 20 is attracted and retracted by the suction plate 13 (33) of the adsorbing body 10, there is no situation where the pressing member 20 hits the article W when the article W is transported to the pasting position Y. Therefore, the situation where the article W and the pressing member 20 are damaged or the article W moves and the sticking position Y of the label L shifts is prevented.

  Next, as shown in FIGS. 4 and 6B, for example, based on the detection of a sensor (not shown), the adsorbent 10 causes the air supply and suction device 17 (37) to suck the adsorbed label L against the article W. Affixed by spraying with air blowout. When the adsorbent 10 sprays the label L on the article W, the downstream side portion 22 of the pressing member 20 adsorbed by the suction plate 13 (33) of the adsorbent 10 is also blown to the article W side, and the suction plate 13 ( 33) and is brought into contact with the article W.

  Then, as shown in FIG. 5 and FIG. 6C, the pressing member 20 is slid onto the label L for an appropriate period of time by the air supply and suction device 17 (37) being ejected along with the transport movement of the article W. Can be touched. Therefore, the pressing member 20 is slidably brought into contact with the label L and presses the label L well, so that the label L is securely attached. Further, since the pressing member 20 has a rectangular sheet shape, the label L can be pressed evenly, the pressing can be further ensured, and the label L can be reliably attached.

  If the pressing member 20 is pressed for the required time, the air cylinder device 16 is actuated again, and the adsorbing body 10 moves backward and is positioned at the adsorbing position X. Further, suction is performed by the air supply / suction device 17 (37), and the pressing member 20 is attracted to the adsorbent 10 by the elastic force of the pressing member 20. In this case, since the spring 40 that biases the pressing member 20 in the backward direction is provided, the movement of the pressing member 20 to the backward position is assisted, and the operation can be performed smoothly. In this way, the label L is sequentially applied.

7 to 9 show a label sticking device according to a third embodiment of the present invention. In the label sticking device according to the third embodiment, unlike the first and second embodiments, the adsorbent body 10 of the label L and the support body 21 of the pressing member 20 are separated. .
Specifically, the adsorbent 10 includes a suction plate 13 having a large number of suction ports 11 for sucking the label L, a hollow box-shaped holding body 14 to which the suction plate 13 is attached, and an air inlet / outlet provided in the holding body 14. 15. The air in the holding body 14 is sucked into the air inlet / outlet port 15 and the label L is adsorbed to the suction surface 12 through the suction port 11, and air is blown into the holding body 14 to blow out air from the suction port 11. Then, the piping of the air supply / suction device 17 (A1) for blowing the label L against the article W is connected.

  The adsorbing body 10 includes an adsorbing position X (FIG. 9 (a)) where the adsorbing body 10 adsorbs the label L from the label peeling unit 2 and a pasting position Y (FIG. 9 (b)) where the label L is applied to the article W by spraying. (C)) is provided on a machine base (not shown) so as to be vertically movable at two positions. Specifically, the holding body 14 is attached to an air cylinder device 16 that moves up and down to the suction position X and the sticking position Y.

  Moreover, the support body 21 is provided in the downstream of the said adsorption body 10 in the adsorption position X of the adsorption body 10, as shown in FIG. The support body 21 is configured by a rectangular suction plate 33, the pressing member 20 is formed in a rectangular shape that is substantially the same size as the suction plate 33, and the upstream end 26 of the pressing member 20 is fixed to the suction plate 33. Has been.

  The drive unit 30 includes a plurality of suction ports 31 configured as the support 21 and having the upstream end portion 26 of the pressing member 20 fixed thereto, which sucks the downstream side portion 22 and sucks the pressing member 20 on the surface in a planar shape. A provided suction plate 33 is provided. Then, when the adsorbing body 10 adsorbs the label L due to the suction or ejection of air from the air supply / suction device 37, the pressing member 20 is sucked by the suction port 31 and retreats to the support body 21 side. When the label 10 is applied to the article W by spraying the label L, the label L is blown by the air ejected from the suction port 31, suspended from the support 21 and attached to the article W.

The drive unit 30 is connected to a hollow holding body 34 to which the suction plate 33 is attached and an air inlet / outlet port 35 provided in the holding body 34, and sucks air in the holding body 34 and presses it through the suction port 31. It comprises an air supply / suction device 37 (A2) that adsorbs the member 20 to the surface and moves it backward, and blows air into the holding body 34 to eject the air from the suction port 31 to suspend the pressing member 20. Has been.
Further, in the drive unit 30, a spring 40 is provided that is provided on the suction plate 33, supports the upstream end portion 26 of the pressing member 20 supported by the suction plate 33, and biases the pressing member 20 in the backward direction. It has been. The spring 40 is supported by a support shaft 41 that crosses the suction plate 33.

Therefore, when the label L is pasted on the article W by the label pasting apparatus according to the third embodiment of the present invention, it is as follows.
As shown in FIG. 9 (a), a belt-like mount D temporarily attached with a plurality of labels L at equal intervals is supplied, and the belt-like mount D is folded back at the tip of the peeling plate 1 at the suction position X of the suction body 10. As a result, the label L temporarily attached to the belt-like mount D is peeled off, proceeds toward the adsorbent 10, and the label L is attracted to the adsorbing surface 12 of the adsorbent 10 by suction of air from the suction port 11 of the adsorbent 10. Adsorbed.

  Then, as shown in FIG. 9B, the air cylinder device 16 is operated, and the adsorbent 10 is positioned at the sticking position Y. In this state, the article W is conveyed to a predetermined position. In this case, since the pressing member 20 is attracted to the suction plate 33 and retracted by the suction of air by the air supply and suction device 37 (A2), the pressing member 20 is moved to the pasting position Y of the article W. Therefore, it is possible to prevent the article W and the pressing member 20 from being damaged, and the situation where the article W moves and the sticking position Y of the label L is shifted.

Next, as shown in FIG. 9B, for example, based on detection of a sensor (not shown), the adsorbent 10 causes the adsorbed label L to be delivered to the article W by the air supply and suction device 17 (A1). Spray and stick by spray.
Then, as shown in FIG. 7 and FIG. 9C, the air cylinder device 16 is operated again, and the adsorbing body 10 is moved backward to be positioned at the adsorption position X. On the other hand, in the holding body 34 of the pressing member 20, if the label L is positioned at the position where the pressing member 20 faces due to the conveyance movement of the article W, the suction plate 33 is ejected by the air supply and suction device 37 (A 2). The downstream side portion 22 of the pressing member 20 adsorbed by the air is blown toward the article W, suspended from the suction plate 33 and brought into contact with the label L.

  Then, as shown in FIGS. 8 and 9 (d), the pressing member 20 is slid on the label L for an appropriate period of time by the air supply and suction device 37 (A2) as well as the conveyance movement of the article W. Can be touched. Therefore, the pressing member 20 is slidably brought into contact with the label L and presses the label L well, so that the label L is securely attached. Further, since the pressing member 20 has a rectangular sheet shape, the label L can be pressed evenly, the pressing becomes more reliable, and the label L can be reliably attached.

  If the pressing member 20 is pressed for the required time, suction is performed by the air supply suction device 37 (A2), and the pressing member 20 is moved backward by the elastic force of the pressing member 20 in this case. Since the spring 40 for biasing is provided, the movement of the pressing member 20 to the retracted position is assisted, and the operation can be performed smoothly. In this way, the label L is sequentially applied.

  In the above embodiment, it has been described that the adsorbent 10 can be moved up and down by the air cylinder device 16 and the support 21 does not move up and down. However, a similar air cylinder device is attached to the support 21 and is synchronized with the air cylinder device 16. You may make it go up and down and may change suitably.

In the second and third embodiments, the upstream end portion 26 of the pressing member 20 is fixed to the suction plate 13 (33) of the adsorbing body 10, but the present invention is not limited to this. The upstream end portion 26 of the pressing member 20 can be provided and supported on the support shaft 41, and can be biased to the support body 21 by the elastic force of the spring 40. In this case, the pressing member 20 presses the label L against the article W by the supply of air from the air supply / suction device 17 (37), but the pressing member 20 by suction of air from the air supply / suction device 17 (37). Therefore, in the third embodiment, the control of the air supply / suction device 37 is relaxed. Further, when the pressing member 20 is provided on the support shaft 41, the pressing member 20 can be made thicker with rubber or plastic resin, or another member having strong elastic force, and the label L can be attached to the article W. Since the pressing force to be pressed can be increased, the label L can be more reliably attached to the article W.

It is a perspective view which shows the label sticking apparatus which concerns on 1st embodiment of this invention. It is a perspective view which shows the label sticking apparatus which concerns on 1st embodiment of this invention with the effect | action of a pressing member. It is sectional drawing which shows the label sticking apparatus which concerns on 1st embodiment of this invention with the sticking process of a label. It is a perspective view which shows the label sticking apparatus which concerns on 2nd embodiment of this invention. It is a perspective view which shows the label sticking apparatus which concerns on 2nd embodiment of this invention with the effect | action of a pressing member. It is sectional drawing which shows the label sticking apparatus which concerns on 2nd embodiment of this invention with a label sticking process. It is a perspective view which shows the label sticking apparatus which concerns on 3rd embodiment of this invention. It is a perspective view which shows the label sticking apparatus which concerns on 3rd embodiment of this invention with the effect | action of a pressing member. It is sectional drawing which shows the label sticking apparatus which concerns on 3rd embodiment of this invention with a label sticking process. It is a figure which shows an example of the conventional label sticking apparatus.

Explanation of symbols

W Article C Conveyor L Label D Strip board 1 Release plate 2 Label release unit 10 Adsorbent body 10a Downstream end 11 Suction port 12 Suction surface 13 Suction plate 14 Holding body 15 Air inlet / outlet X Adsorption position Y Adhesion position 16 Air cylinder device 17 Air supply and suction device 20 Press member 21 Support body 22 Downstream side portion 23 Upstream side portion 24 Downstream side end portion 25 Through hole 26 Upstream side end portion 30 Drive portion 31 Suction port 33 Suction plate 34 Holding body 35 Air inlet / outlet 37 Air supply and suction Device 40 Spring 41 Support shaft

Claims (5)

A label affixing device for affixing a label to an article conveyed by a conveyor in a process of conveying the article, wherein the supplied label is adsorbed by suction of air and the adsorbed label is ejected from the article by air Label affixing comprising an adsorbent for spraying and affixing, and a sheet-like flexible pressing member that is supported by a support located above the label affixed to the article and presses the label affixed to the article In the device
The upstream side of the pressing member is supported by the support, and when the adsorbent adsorbs the label, the downstream side of the pressing member recedes to the support, and the adsorbent sprays the label onto the article. A drive unit that retracts and suspends the pressing member and holds the suspension for a predetermined time so that the downstream side portion of the pressing member is suspended from the support and pressed against the article when affixed. A label affixing device characterized by comprising. A plurality of suctions configured such that the drive unit is configured as the support and the upstream side portion of the pressing member is supported on the surface, and at least the downstream side portion of the pressing member is sucked to attract the pressing member to the surface in a planar shape. A suction plate provided with a mouth; a hollow holding body to which the suction plate is attached; and an air inlet / outlet provided in the holding body for sucking air in the holding body and pressing the suction body through the suction port And an air supply / suction device that suspends the pressing member by adsorbing the member to the surface and retreating, blowing air into the holding body, and ejecting air from the suction port. Item 2. A labeling device according to item 1. 3. The label sticking device according to claim 2, wherein the driving unit includes a spring that supports an upstream side portion of the pressing member supported by the suction plate and biases the pressing member in the backward direction. The suction body includes a suction plate provided with a number of suction ports and capable of sucking labels, a hollow holding body to which the suction plate is attached, and the suction provided by sucking air in the holding body. An air inlet / outlet connected to an air supply / suction device for adsorbing the label through the mouth and blowing air into the holding body and blowing out the air from the suction port to blow the label against the article,
The suction plate of the adsorbing body is configured as a support, a through hole corresponding to the suction port of the adsorbing body is formed in the general part excluding the downstream end of the pressing member, and the surface of the general part of the pressing member is formed. 4. The label sticking device according to claim 2, wherein the label sticking device is configured as a suction surface of the label, and the suction member and an air supply / suction device for the suction member are configured as a drive unit of the pressing member. The suction body includes a suction plate provided with a number of suction ports and capable of sucking labels, a hollow holding body to which the suction plate is attached, and the suction provided by sucking air in the holding body. An air inlet / outlet connected to an air supply / suction device for adsorbing the label through the mouth and blowing air into the holding body and blowing out the air from the suction port to blow the label against the article,
A predetermined range of the downstream end portion of the suction plate of the adsorption body is configured as a support for the pressing member, and a surface upstream of the predetermined range of the suction plate is used as an adsorption surface of the label. The label sticking device according to claim 2, wherein an air supply / suction device for the adsorbent is configured as a drive unit for the pressing member.

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