JP2011116461A - Label applier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a label applier capable of sticking a label to a plurality of adherends one by one substantially at the same time even when the interval between the labels temporarily stuck to strippable sheets and interval between the adherends are different. <P>SOLUTION: The sticking device 10 includes holding means 13 having a plurality of suction heads 42 for holding the label L, a first moving device 15 for relatively moving the front end side of each suction head 42 in the same plane, and a second moving device 16 for moving the label L held by the holding means 13 toward the adherend W. The first moving device 15 includes an adjusting section 57 capable of adjusting the moving distance in the plane of each suction head 42. The adjusting section 57 is capable of individually adjusting the interval of the suction head 42 adjoining with each other when the label L is stuck. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a label sticking apparatus, and more particularly, to a label sticking apparatus that can be attached to an adherend by adjusting the interval between a plurality of labels that are peeled simultaneously.

  2. Description of the Related Art Conventionally, a pasting device that can automatically paste a label temporarily attached to a surface of a strip-shaped release sheet is used for an adherend transported on a transport device such as a belt conveyor. The affixing device includes a holding device that holds a label peeled off by a peel plate in the course of unwinding the original fabric, and a moving device that moves the holding device to the adherend side. Here, as the holding device, as shown in Patent Documents 1 and 2, there is a type that holds a plurality of labels at the same time. According to such a holding device, there is an advantage that a plurality of labels can be simultaneously attached to the adherend.

Japanese Patent Laid-Open No. 4-92456 JP-A-8-40429

However, in the holding device, the interval between the labels temporarily attached to the release sheet and the interval between the labels attached to the adherend are inevitably the same. Therefore, when affixing labels one by one to a plurality of adherends, if the interval between the adherends is different from the interval between the labels temporarily attached to the release sheet, the label is attached to each adherend. There is an inconvenience that the sticking cannot be performed.
Here, while producing the original fabric so that the interval between the labels is the same as the interval between the adherends, and preparing a holding device corresponding to this, various labels can be attached to each adherend, It is necessary to prepare a plurality of types of raw fabrics and holding devices according to the distance between the adherends, resulting in a reflective inconvenience of incurring cost burden and inventory risk.

[Object of invention]
The present invention has been devised by paying attention to such inconveniences, and its purpose is that even when the interval between labels temporarily attached to the release sheet is different from the interval between adherends, An object of the present invention is to provide a label attaching apparatus capable of attaching labels to a plurality of adherends one by one almost simultaneously.

In order to achieve the above object, the present invention provides a label affixing device that exfoliates a label from a release sheet and affixes it to an adherend in the middle of feeding an original fabric in which a plurality of labels are temporarily attached to the surface of a strip-like release sheet. In
A holding device having a plurality of suction heads for holding labels peeled one by one in the process of unwinding the original fabric, and a front end side of each suction head relatively moving within a substantially same plane 1 moving device and a second moving device for moving the label toward the adherend,
The first moving device includes an adjusting unit capable of adjusting a moving distance of each suction head in the plane, and the adjusting unit is provided so that an interval between adjacent suction heads when a label is attached can be individually adjusted. It has the structure of being.
In the present invention, the adjustment unit includes a moving body provided for each of the suction heads, and a plurality of screw bodies corresponding to the moving bodies and screw shaft members respectively screwed into screw holes. While holding the label, while allowing the adjacent moving body to contact, by changing at least one of the length of the screw shaft member and the screwing amount of the screw shaft member into the screw hole, It is preferable that the interval between adjacent suction heads can be adjusted individually.

  According to the present invention, after each suction head holds a label, the distance between the labels can be changed by relatively moving each suction head by the first moving device. Thereby, even when the interval between the labels temporarily attached to the release sheet is different from the interval between the plurality of adherends, the labels can be applied to the adherends almost simultaneously one by one.

The schematic front view of the label sticking apparatus which concerns on this embodiment. The principal part enlarged view of FIG. The top view of an original fabric. The right view which looked at a part of this embodiment in cross section. The enlarged view of the adjustment part shown by FIG. Partial right side view with label attached to adherend The right side view similar to FIG. 2 which shows the intermediate state which adjusts the space | interval of an adsorption | suction head by an adjustment part. The right side view similar to FIG. 2 which shows the intermediate state which adjusts the space | interval of an adsorption | suction head by an adjustment part. The right side view similar to FIG. 2 of the state which finished adjustment of the space | interval of a suction head. The front view of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a schematic front view of the label sticking apparatus according to the present embodiment, and FIG. 2 shows an enlarged front view of the main part of FIG. In these drawings, the label sticking device 10 is intended for an original fabric M in which a plurality of labels L are temporarily attached to one surface of a strip-shaped release sheet S, and a support means 11 for supporting the original fabric M, A peel plate 12 provided below the support means 11 for peeling the label L from the release sheet S, a holding device 13 for sucking and holding the peeled label L, and a first device provided above the holding device 13. A moving device 15, a second moving device 16 that moves the label L held by the holding device 13 toward the adherend W, and the adherend W supported on the adherend W in FIG. And a transport device 17 that transports along the orthogonal direction.

  As shown in FIG. 3, the original fabric M is temporarily attached in a state where a plurality of labels L (six in this embodiment) are arranged in the short dimension direction of the release sheet S. Accordingly, the label L is peeled from the release sheet S almost simultaneously by six at the same time by folding the original fabric M in the downward acute angle direction at the tip of the peel plate 12 (right end in FIG. 2).

  As shown in FIG. 1, the original fabric M is guided onto the peel plate 12 through two guide rolls 20 and 21 supported by a frame F, and the upper guide roll 20 has an original fabric M, in particular peeling. A brake roll 20A for applying a predetermined tension to the sheet S is provided. The release sheet S after the label L is peeled off by the peel plate 12 passes between the drive roll 22 and the pinch roll 23 located in the plane of the frame F, and is taken up by the frame F so as to be rotatable. It is hung around. The rotation shaft 26 of the drive roll 22 protrudes rearward of the frame F and includes a pulley 27 at the rear end. A belt 28 is wound around the pulley 27. The belt 28 is located behind the frame F and is provided so as to be wound around a driving pulley 30 connected to the output shaft of the motor MT and transmit a driving force to the driving roll 22. In addition, a transmission pulley 31 is provided on the rotation shaft 26 of the drive roll 22 along with a pulley 27, while the rotation shaft 25A of the take-up roll 25 protrudes rearward of the frame F and the rotation shaft 25A. A driven pulley 32 is provided. A slip belt 33 is wound around the transmission pulley 31 and the driven pulley 32 so that the winding force is transmitted to the winding roll 25. The pinch roll 23 is supported by an arm 35 located behind the frame F, and is always urged in a direction in contact with the outer peripheral surface of the drive roll 22, and the right end of the arm 35 in FIG. The knob 36 protruding from the front side of the frame F is moved upward so that a clearance can be formed in the initial wrapping operation with the drive roll 22.

  The support means 11 is constituted by a reel 38. The reel 38 is rotatably supported via an arm 40 that extends upward from the upper side of the support plate 39. The reel 38 in this embodiment is configured to allow free rotation.

  As shown in FIG. 4, the holding device 13 includes a plurality of suction heads 42 provided along the short dimension of the release sheet S (the horizontal direction in the figure). In the present embodiment, the number of suction heads 42 is set to six corresponding to the number of labels L arranged in the short dimension direction. Each suction head 42 has a suction hole at its front end surface (lower end surface) and is connected to an intake means 44 such as a vacuum pump via a hose 43 shown in FIG. 1 to operate the intake means 44. By performing the suction, the label L is sucked and held by the front end surface of the suction head 42. Here, the hose 43 between the suction head 42 and the suction means 44 is provided with a holding detection sensor 45 that detects a negative pressure. The holding detection sensor 45 is constituted by a negative pressure sensor, and the suction air in the suction head 42 is sucked. The state can be detected.

  As shown in FIGS. 2 and 3, a support member 47 is provided above each suction head 42, and the suction head 42 is supported by the first moving device 15 via the support member 47. . The support member 47 is formed in a cylindrical shape having a lower open type and is provided inside the receiver 48 for receiving the upper region of the suction head 42. The support member 47 normally biases the suction head 42 downward. And a spring member 49. Slots 48A extending vertically are formed on both the left and right sides of the receiver 48 in FIG. 4, and pins 50 inserted into these slots 48A project from the suction head 42, and are within the length of the slot 48A. Thus, the support member 47 and the suction head 42 can be relatively moved up and down.

  As shown in FIG. 2, the support member 47 is provided with a downward concave proximity sensor as the press detection sensor 52. A light shielding member 54 for shielding the proximity sensor is attached to the right side surface of the suction head 42 in FIG.

  As shown in FIG. 4, the first moving device 15 includes six substantially prismatic moving bodies 56 that are respectively provided above the respective support members 47 and extend in the vertical direction. In FIG. 4, the adjustment unit 57 that can adjust the movement distance in the left-right direction in FIG. 4, the slider 59 attached to each of the upper and lower positions of the rear surface of each moving body 56, There are two upper and lower slide rails 60 that guide in the left-right direction, a frame plate 61 that supports the slide rail 60 from the rear surface, and an upper cylinder 63 and a lower cylinder 64 that are provided in an upper region of the frame plate 61. It is configured.

  As shown in FIG. 2, a label detection sensor 55 is provided below each moving body 56, and the presence or absence of the label L before being peeled off by the label detection sensor 55 on the front end side of the peel plate 12. Can be detected.

As shown in FIG. 5, the adjusting portion 57 has a structure that is symmetric about a point P in the drawing. Accordingly, in the following, unless otherwise specified, the structure on the left side in FIG. 5 from the point P will be described, and the structure on the right side will be denoted with the same reference numerals and description thereof will be omitted.
Further, in the description of the adjustment unit 57, “left” and “right” are used with reference to FIG. 5 unless otherwise specified.
Furthermore, for convenience of explanation, among the six moving bodies 56, the moving body adjacent to the left and right sides of the point P is the first moving body 56A, and the left and right moving bodies are the third moving body 56C. A moving body between the first and third moving bodies 56A and 56C is referred to as a second moving body 56B.

  The adjusting portion 57 includes a concave portion 66 formed on the lower right side of the first moving body 56A, a fixed body 67 that is received in the concave portion 66 and is attached to the frame plate 61, and first to third. Each of the moving bodies 56A to 56C is formed so as to have a height difference, and a stepped hole 68 having a stepped portion having a narrow left and right intermediate portion, and the first and second moving bodies 56A and 56B. A through hole 70 formed in each of the regions of the second and third movable bodies 56B and 56C adjacent to the left side of the stepped hole 68; a lock nut 71 received on the right side of each stepped hole 68; A right end side is screwed into the lock nut 71, and a screw shaft member 73 is formed with a screw shaft head 72 having a large diameter on the left end side. Each screw shaft member 73 is received in the screw hole 75 of the fixed body 67, the first moving body 56 </ b> A or the second moving body 56 </ b> B adjacent to the right side surface, and is fixed by each lock nut 71. Further, the length of each screw shaft member 73 is the length from the bottom of the stepped hole 68 of the two left screw shaft members 73 to the screw shaft head 72 because of the stroke of each moving body 56A, 56B, 56C. The length is set to be the same, and the length of the right screw shaft member 73 with respect to these screw shaft members 73 is set to about half.

  The upper cylinder 63 is supported by the frame plate 61 via a bracket 76 on the left end side in FIG. 4, and the tip end side of the rod 63A is connected to the third moving body 56C on the right side in FIG. It is connected. On the other hand, the lower cylinder 64 is provided so as to be opposite to the upper cylinder 63, and is supported by the frame plate 61 via the bracket 78 on the right end side in the figure, and the distal end side of the rod 64A is the connecting member 79. Is connected to the third moving body 56C on the left side in FIG. Each cylinder 63, 64 is provided with a distal end side sensor 81 and a proximal end side sensor 82, and these sensors 81, 82 can detect pistons 63B, 64B provided on the proximal end side of the rods 63A, 64A. It is like that.

  As shown in FIG. 2, the second moving device 16 is supported on the upper end side of the support plate 39 via a bracket 84, and the tip of the rod 85A is connected to the upper end side of the frame plate 61. The lifting / lowering cylinder 85, the slider 86 attached to the upper and lower portions of the rear surface (left side in FIG. 2) of the frame plate 61, and the front surface (right side in FIG. 2) of the support 39 are provided. A slide rail 87 for guiding the first moving device 15 in the vertical direction is provided.

  The transport device 17 is constituted by a conveyor extending in the direction orthogonal to the paper surface in FIG. 1 and is provided so as to transport the adherend W from the right to the left in FIG. As shown in FIG. 6, the transport device 17 is provided with a stopper 89 that protrudes and protrudes from the upper surface thereof, and at least six adherends W are aligned by the stopper 89 and positioned below the holding device 13. be able to. Further, a rejector 90 is provided on the downstream side of the stopper 89 so that the adherend W that is determined to have a label sticking failure on the transport device 17 can be accommodated in a collecting device (not shown) by operating the rejector 90. It has become.

  It should be noted that the transport device 17, motor MT, suction means 44, holding detection sensor 45, pressure detection sensor 52, label detection sensor 55, upper cylinder 63, lower cylinder 64, distal end side sensor 81, proximal end side sensor 83, described above, The elevating cylinder 85, the stopper 89, the rejector 90, and the like are entirely controlled through control means (not shown).

  Next, the overall operation in this embodiment will be described.

  The lead end of the original fabric M supported by the reel 38 is pulled out, is wound around a predetermined path, is fixed to the take-up roll 25, and is set so that the label L is positioned at the forefront of the peel plate 12. .

  When the power is turned on, the motor MT is driven, the drive roll 22 is rotated, and a feed output is given to the original fabric M. Then, six labels L arranged in the short direction of the release sheet S at the forefront on the peel plate 12 are peeled off almost simultaneously as a unit, and each peeled label L is placed on the front end side of the corresponding suction head 42. After the suction and holding, the driving of the motor MT and the feeding of the original fabric M are stopped. Thereafter, the upper cylinder 63 and the lower cylinder 64 are actuated to feed out the rods 63A and 64A, and their tips move away from each other in the left-right direction in FIG. As a result, the first to third moving bodies 56A to 56C change from the state of FIG. 4 to the state of FIG. 9 through the states of FIGS. 7 and 8, and the tip side of each suction head 42 is within the same horizontal plane, that is, left and right in the figure. It will move relative to the direction.

  The moving process of the first to third moving bodies 56A to 56C will be described in more detail. When the mutual separation of the tips of the rods 63A and 64A is started, first, connecting members 77 and 79 are attached to the rods 63A and 64A. The two third mobile bodies 56C and 56C connected via the base start to move away from each other. Thereafter, as shown in FIG. 7, the screw shaft head 72 of the screw shaft member 73 inserted into the through hole 70 of each of the third moving bodies 56C and 56C passes through the through hole 70, while the third shaft The stepped holes 68 of the moving bodies 56C and 56C abut against the screw shaft head 72 of the screw shaft member 73 inserted therethrough. When the rods 63A and 64A are further moved from this state, the third moving bodies 56C and 56C are moved second through the stepped holes 68 and the screw shaft members 73 inserted through the stepped holes 68. The body 56B, 56B is pulled outward. As a result, as shown in FIG. 8, the screw shaft head 72 of the screw shaft member 73 inserted into the through hole 70 of each of the second moving bodies 56B, 56B passes through the through hole 70, while the second The stepped holes 68 of the moving bodies 56B, 56B and the screw shaft head 72 of the screw shaft member 73 inserted through the holes 68B come into contact with each other. Further, when the rods 63A and 64A are moved, the third moving bodies 56C and 56C and the second moving bodies 56B and 56B pass through the stepped holes 68 and the screw shaft members 73 that pass through the stepped holes 68. Then, the first moving bodies 56A and 56A are pulled outward. As a result, as shown in FIG. 9, the stepped holes 68 of the first moving bodies 56A and 56A and the screw shaft head 72 of the screw shaft member 73 inserted therethrough come into contact with each other, and the rods 63A and 64A. Stops moving. At this time, the tip side sensors 81 and 81 of the upper cylinder 63 and the lower cylinder 64 detect the pistons 63B and 64B, and detect that the movement is completed through the control means. As described above, the spacing between the suction heads 42 adjacent to the left and right via the moving bodies 56 </ b> A to 56 </ b> C and the screw shaft member 73 is increased by the screw shaft member 73.

  From the state shown in FIG. 9, the lifting cylinder 85 of the second moving device 16 is actuated so that the rod 85A is extended, and the first moving device 15 and the holding device 13 are lowered. That is, as shown in FIGS. 6 and 10, the labels L held by the suction heads 42 toward the six adherends W arranged in close contact with the transport device 17 by the stopper 89. Moves, and each label L comes into contact with the upper surface of the adherend W. Thereafter, the lowering of the first moving device 15 is continued against the elastic force of each spring member 49, and each label L is pressed against the adherend W and stuck. Then, the light shielding member 54 shields all the six pressure detection sensors 52 provided on the suction heads 42 to confirm the pressure, and stops the intake of the intake means 44 via the control means, The rod 85A of the elevating cylinder 85 is raised, and the first moving device 15 and the holding device 13 are raised.

  When the sticking of the labels L is finished in this way, the adherends W are transported by the transport device 17, the upper cylinder 63 and the lower cylinder 64 are operated, and the proximal end sensor 82 moves the pistons 63B and 64B. Until the detection, the tips of the rods 63A and 64A move so as to approach each other. Thereby, each of the moving bodies 56A to 56C and each of the suction heads 42 returns to the initial position shown in FIG.

  Here, before each label L is peeled off by the peel plate 12, the label detection sensor 55 detects the presence or absence of six labels L arranged in the short dimension direction of the release sheet S. If the label L on the release sheet S has fallen off due to some factor, an adherend W to which the label L is not attached is generated. The control means stores that the label L is not attached to the adherend W, and the rejector 90 is operated on the downstream side of the conveying device 17 so that the adherend W not attached with the label L is excluded. The

  Further, after the label L is sucked by each suction head 42, the suction state in each suction head 42 is detected via the holding detection sensor 45. For example, if the label L is adsorbed in a state where the label L is displaced or bent in the adsorbing head 42, the negative pressure becomes insufficient compared to when the label L is normally adsorbed. Further, when the label L cannot be sucked due to a suction mistake, the holding detection sensor 45 detects this. The adherend W to which the label L is stuck in an incomplete state due to the position shift and the adherend W to which the label is not attached is moved downstream of the transport device 17 by operating the rejector 90 via the control means in response to the detection signal. Excluded on the side.

  Note that the interval between adjacent suction heads 42 in the state shown in FIG. 9 can be adjusted. This adjustment operation is performed by using a plurality of types of screw shaft members 73 having different lengths or by changing the screwing amount of the screw shaft member 73 into each screw hole 75 of the screw shaft member 73.

Therefore, according to such an embodiment, after the label L is sucked and held, the label L can be attached with the interval between the adjacent suction heads 42 being increased, so that the adherends W arranged in the transport direction are arranged. Even when the interval is larger than the interval between the labels L along the short dimension direction, a plurality of labels L can be applied almost simultaneously.
Further, since each suction head 42 is provided with a pressure detection sensor 52, it can be detected that the label L has been pressed against the adherend W in all the suction heads 42, and the upper surface height is increased by deformation of the adherend W or the like. Even if there is variation, the label L can be reliably attached.

The best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this.
That is, the invention has been illustrated and described with particular reference to particular embodiments, but it should be understood that the above-described embodiments are not deviated from the technical idea and scope of the invention. On the other hand, various modifications can be made by those skilled in the art in shape, quantity, and other detailed configurations.
Therefore, the description limited to the shape disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded one part or all part is included in this invention.

For example, a plurality of labels L arranged along the extending direction of the release sheet S may be peeled as a unit, and these labels L may be sucked and held by the suction heads 42.
The adjustment unit 57 can be changed in various designs. For example, the leftmost moving body 56 is fixed, and the other moving bodies 56 are moved only in the right direction to adsorb adjacent ones. You may enlarge the space | interval of the head 42. FIG.

  The present invention is used in a label sticking device for sticking labels to a plurality of adherends that are sequentially conveyed.

DESCRIPTION OF SYMBOLS 10 Label sticking device 13 Holding device 15 1st moving device 16 2nd moving device 42 Adsorption head 56 Moving body 73 Screw shaft member 75 Screw hole L Label M Original fabric S Release sheet W Substrate

Claims (2)

In the middle of feeding out the original fabric on which a plurality of labels are temporarily attached to the surface of the strip-shaped release sheet, in the label sticking device for peeling the label from the release sheet and sticking it to the adherend,
A holding device having a plurality of suction heads for holding a plurality of labels separated one by one in the process of unwinding the original fabric, and a front end side of each suction head is relatively moved within a substantially same plane. 1 moving device and a second moving device for moving the label toward the adherend,
The first moving device includes an adjusting unit capable of adjusting a moving distance of each suction head in the plane, and the adjusting unit is provided so that an interval between adjacent suction heads when a label is attached can be individually adjusted. A label sticking device characterized by being made.   The adjusting unit includes a moving body provided for each of the suction heads, and a plurality of screw bodies corresponding to the moving bodies, and screw shaft members that are screwed into the screw holes, respectively. While adjoining moving bodies are allowed to contact, at least one of the length of the screw shaft member and the screwing amount of the screw shaft member into the screw hole is changed, so that the adjacent suction heads at the time of label sticking The label sticking device according to claim 1, wherein the intervals are individually adjustable.

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