JP5380952B2 - Labeling device - Google Patents

Description

  The present invention relates to a label sticking device, and more particularly to a label sticking device capable of sticking a label corresponding to various sticking surfaces.

Conventionally, when a single label is folded and pasted across two surfaces (for example, an upper surface and a side surface) sandwiching a corner of an object to be adhered (such as a cardboard box) conveyed by a conveyor, Affixing (temporary attachment) is performed on the vertical surface), and then the label is attached by performing an operation (crimping) such that the other end of the label is applied to the upper surface (horizontal surface).
In order to perform the above-mentioned pasting operation, the object to be transported is temporarily stopped at the label affixing position, and the label is pasted in the stopped state, or when the label is pasted on the object to be transported, Affixing the label by pasting (temporarily attaching) the end of the label to the side surface (vertical surface) and then crimping the other end of the label in the direction opposite to the conveying direction of the object. .

In the former method, the label is affixed in a stopped state, in order to stably affix the label, the object to be affixed is detected using a sensor or the like, and the affixing operation is stopped after the conveyance of the affixed object is stopped at the label affixing position. Therefore, stable label application was realized because the time for stopping and starting the transfer of the object to be applied was added to the label application time, but there was a limit to shortening the entire operation including label application and conveyance. there were.
Also, the latter method of applying in the conveying state is a pasting operation for temporarily receiving and stopping the object to be adhered (such as a cardboard box) when the other end of the label is crimped in the direction opposite to the conveying direction of the object to be adhered. Therefore, although it is improved over the former method, there is a limit to shortening the time for the entire labeling operation including conveyance as in the former method. In the latter method, when the size of an object to be pasted (such as a cardboard box) changes, the other end of the label is pressure-bonded in a direction opposite to the direction of transport of the object to be pasted (so that the object to be pasted is temporarily received). In order to operate, it is necessary to adjust the stroke of the label applying means (applicator) and the application timing. If this adjustment is neglected, there is a problem that defective label application occurs. In addition, it is troublesome and troublesome for an operator to make adjustments every time the size of an object to be attached is changed, and there is a problem that a label sticking error occurs if the adjustment is forgotten or wrong. there were.

  In addition, a label sticking device for sticking a label to a pasted object conveyed by a conventional conveyor includes a label sticking device for sticking a label exclusively for a corner of a package such as a cardboard box, and a side surface (vertical surface) of the package. ) Label sticking device for sticking labels exclusively, Label sticking device for sticking labels only for curved surfaces such as bottles (for example, refer to Patent Document 1), or upper and lower ends of side surfaces of pack-shaped (flat plate) products Because it is necessary to be a label sticking device that corresponds to the shape of the pasting object or the type of the sticking surface to stick the label, such as a label sticking device that sticks the label across the top surface, side surface, and bottom surface so as to sandwich the I had to purchase and use a labeling device.

  Therefore, in the factory (processing plant) where the label is applied, it is necessary to purchase a label application device that matches the shape of the object to be applied and the shape of the surface to be applied, and incorporate it into each line for label application work. Inexpensive, there is a purchase cost for each type of labeling device, and several minutes for maintenance, so it is not economical. Furthermore, since an area to be installed for each labeling device is required, there is a problem that the work space is narrowed.

  Further, in the label sticking device described in Patent Document 1, since the support member that supports the pair of sponge rollers only moves up and down parallel to the horizontal plane, the pair of sponge rollers always maintains the same height, It moves symmetrically as the center. Therefore, it is a requirement that an object to which a label can be attached with the same apparatus has a symmetrical surface shape on which a pair of sponge rollers abut. Therefore, a label cannot be attached to an asymmetric surface such as two surfaces constituting a corner or two surfaces extending from an upper surface of a tray packaged with a film to an inclined side surface.

JP 2000-033924 A

  The present invention has been made in view of the above-described problems of the prior art, and the object of the present invention is to apply different adherence surfaces even if the state of the application surface of the object to be conveyed is changed. Provided is a label affixing device that can affix a label neatly with a single label affixing device.

In order to achieve the above object, a label sticking device of the present invention is a label sticking device that receives a label issued from a label issuing unit with a pair of arms, moves toward a sticking object, and sticks the label. The pair of arms are urged in the closing direction, and when one arm rotates in the opening direction, the other arm also rotates following the same direction. A support plate that is pivotally supported by an operating arm that reciprocates toward a predetermined angle, and a support plate that is pivotable at a predetermined angle, and that can be opened and closed via an opening / closing restricting means on both sides of the support shaft that is the rotation center of the support plate. A sticker having an adsorbing function for adsorbing and holding the label with the adhesive surface facing outward is fixed to the tip of the arm, and at least one of the adhering objects is adsorbed and held by the forward movement of the operating arm. When a part is temporarily attached to the object Patch body was temporarily attached to the other of the patch body and the label, characterized in that the label was crimped along the surface of the attached material sticking by opening motion of the arm (claim 1).

The drive mechanism for reciprocating the operating arm is constituted by a combination of a link mechanism and a drive source for operating the link mechanism. As the drive source, for example, air (pneumatic pressure) generally used today is used. Examples thereof include a cylinder, a fluid pressure cylinder such as a hydraulic pressure (hydraulic pressure) cylinder, or a pulse motor.
As an adsorbing function of the patch, for example, a plurality of holes are formed in the label holding surface of the patch, and a hose (tube) connected to a suction device is connected to the hole so that suction is applied to the label holding surface. Any structure may be used, such as a structure that generates a suction fan, or a structure in which a blower fan is built in the patch and the surface of the patch is generated by rotation of the blower fan.

According to the above means, the label issued from the label issuing unit is held by suction with the adhesive surface facing outward, and the patch holding the label by suction is brought into contact with the object to be pasted by the forward movement of the operating arm. Then, the sticking body abutting on the sticking object is moved in the moving direction of the sticking object by the opening / closing regulating means by the movement of the sticking object and the forward movement of the operating arm, and the label Temporarily attach a part to the object. Then, when the sticker temporarily attached with the label is opened, the support plate is rotated to the arm side to which the other sticker is attached by the opening / closing regulating means. When the operating arm further moves forward, the support plate is further rotated with respect to the operating arm by the elastic swing mechanism, and the patch moves along the surface of the object to be pasted by the opening of the arm with respect to the support plate. Then, the temporarily attached label is adhered by pressure bonding.
And if a to-be-attached object is a cardboard box, it sticks to planes, such as an upper surface and a side surface, and over two surfaces (for example, an upper surface (horizontal surface) and a side surface (vertical surface), a side surface and a side surface, etc.) Labeling can be applied over two surfaces from the upper surface of the tray, which is attached or attached to a curved surface such as a bottle, and a tray packaged with a film.

The operating arm is provided with a support plate that pivotally supports the pair of arms, the support plate is pivotally supported by a predetermined angle, and opening / closing regulating means are disposed on both sides of the pivot center, and the support plate Is urged by a resilient swing mechanism to return to the initial position relative to the operating arm,
The open-close restriction means is constituted by the guide pin to be fitted in the guide groove and the guide grooves around the rotation axis of the arm which is provided between the support plate and the arm (claim 2).
For example, the guide groove and the guide pin constituting the opening / closing regulating means are provided with a guide groove centered on the pivot axis of the arm on the support plate side and a guide pin fitted into the guide groove on the arm side. Or, it may be in the opposite form, that is, a form in which a guide groove is opened on the arm side and a guide pin is fixed on the support plate side.

  According to the above means, when the sticking body holding the label by suction is brought into contact with the sticking object moving on the conveyor, the arm of the contacting sticking body is supported by the opening / closing regulating means. It opens outward with respect to the plate, and the sticking body follows the movement of the sticking object while pressing the label, and temporarily attaches a part of the label. The arm to which the sticker is attached is integrated with the support plate and the arm on the terminal side of the opening / closing restricting means (the terminal side of the opening of the arm). A force in the direction of further opening acts by the movement of the object. As a result, the support plate engaged with the arm opened at a predetermined angle rotates about the shaft support portion with the operating arm, the opening angle of the pair of arms is further enlarged, and the other part of the label is crimped.

Further, the elastic swing mechanism for pivotally supporting the support plate with respect to the operating arm includes an arc groove formed around the support shaft on the support plate, and an anchor standingly fixed outside the arc groove. A coupling pin, a stopper pin fixed to the operating arm and fitted into the arc groove, and an elastic machine that returns a support plate that rotates with respect to the operating arm to an initial position. It winds around the outer periphery, and it is set as the structure which extended and protruded and engaged with the both sides which pinched | interposed the stopper pin and the engagement pin, and the both ends of the bullet machine crossed (Claim 3 ).
The arc groove opened in the support plate determines the swing range of the support plate with respect to the operating arm, and when trying to increase the opening angle between the pair of arms attached to the support plate, Increase the length of the direction.

  According to the above means, the stick of the arm of either one of the pair of arms is brought into contact with the object to be pasted by the forward movement of the working arm, and a part of the label is temporarily attached. The support plate is engaged and integrated with the support plate through the opening / closing regulating means, and the support plate swings (rotates) around the support shaft in a direction in which the arms open. At this time, the stopper pin fixed to the support plate spreads one end of the ammunition wound around the support shaft against the elastic force of the ammunition, and returns the support plate to the initial position. The resilience of is accumulated. As a result, when the application of the label is completed and the operating arm moves backward (retracts), the support plate is instantaneously rotated and returned to the initial position by the resilience of the ammunition and waits for the next application of the label. .

In addition, an adhesive body that is fixed to the tip portions of the pair of arms is preferably an elastic body that is deformed by pressure bonding to an object to be pasted (Claim 4 ). Examples of the elastic body include a rubber material and a sponge.

  According to the above means, since the patch is made of an elastic body, even if the patch is brought into contact with the object by the forward movement of the operating arm, the impact on the object is reduced and the object is covered. The label can be pressure-bonded following the unevenness of the surface of the patch.

Further, the label attaching means including the support plate and the operating arm to which the pair of arms are attached may be supported so as to be rotatable by a predetermined angle in the direction around the axis of the pushing member of the driving mechanism for moving the label attaching means. (Claim 5 ).
The rotation of the label sticking means about the axis may be 45 degrees, 60 degrees, 90 degrees, or the like, for example, clockwise or counterclockwise.

  According to the above means, the opening and closing direction of the pair of sticking bodies can be changed by rotating the label sticking means including the support plate and the operating arm in the direction around the axis and switching and fixing it to an arbitrary angle. As a result, in addition to a box having a right-angled corner (object to be pasted), the label can be stabilized over two surfaces of an atypical object to be pasted, such as a rhombus or trapezoid box having an acute or obtuse corner. Can be attached.

The label sticking device according to the present invention has the structure according to claim 1 and the pair of arms rotate so as to make the pressing force of the label uniform, so that the arm to be pressed later is in the same direction as the rotation direction of the previously pressed arm. Even if the corner of the corrugated cardboard box or the like or the corner of the object to be pasted is an acute angle, the label is placed over the corner (two sides) of the object to be pasted. Can be affixed neatly. Moreover, cardboard boxes, bottles, trays and the like, the label can be the shape of the application surface to be attached neatly affixed the label on one labeller for different object attached material.
According to the configuration of claim 2, the support plate on which the arm is pivotally supported by the arm provided with the sticking body is engaged with the terminal end side (terminal in the opening direction) of the guide groove constituting the opening / closing regulating means. Further, since the opening angle of the arm is increased, the sticking can be smoothly performed from the center of the label toward the outer peripheral edge.

According to the third aspect of the present invention, the support arm engaged and integrated with the operating arm is brought into contact with the object to be adhered by contacting the object to be adhered, which is placed on the transport conveyor, and moving the label. It is swung in the transport direction. Therefore, since the sticking body at the tip of the operating arm becomes an operation of sticking and sticking the label so that the sticking object is sent out or received, it is possible to stick the label while moving the sticking object to be transported without stopping, The number of labeling processes per hour can be increased. When the application of the label is completed and the operating arm moves backward (retracts), the support plate is instantaneously rotated and returned to the initial position by the resilience of the ammunition and waits for the next label application. Therefore, it is possible to provide a label sticking device that can efficiently perform the label sticking work.
Furthermore, according to the configuration of the fourth aspect, the label can be neatly adhered without damaging the object to be adhered.
Moreover, the structure of Claim 5 can change the opening / closing direction of a sticking body, without changing the arrangement position of an apparatus. For example, when the opening / closing direction of a normal patch is a left / right direction parallel to the vertical plane, the opening / closing direction of the patch can be changed to the vertical direction or the diagonal vertical direction intersecting the horizontal plane, thereby In addition to a box body (attached object) having a label, it is possible to apply a label over two surfaces of an atypical object to be adhered, such as a rhombus or trapezoidal box body having acute or obtuse corners.

Hereinafter, an example of implementation of the label sticking device according to the present invention will be described with reference to the drawings.
FIG. 1 is an external view showing a use state in which a label sticking device according to the present invention is arranged on the side of a transfer line of an object to be attached, on the side of a transfer table 101 ′ having a conveyor 101 for transferring the object W to be attached. The column 102 is erected, and the label affixing device A and the label issuing unit B are disposed on the column 102 via a bracket, and the display operation unit 103 is disposed above the column 102. .
The label issuing unit B is arranged on the upper side of the label applying device A, and the label a which is paid out and issued downward from the label issuing unit B is applied to the side of the object W by the label applying device A arranged below. It has come to be.
An article detection unit 104 that detects the object to be adhered a is disposed on the side of the conveyance table 101 ′ on the object carry-in side.

Next, the detail of the label sticking apparatus A is demonstrated based on drawing.
The label affixing device A includes a label affixing means A1 having a pair of affixing bodies for adsorbing and holding the label a issued from the label issuing unit B with the adhesive surface facing outward, and the label affixing means A1 to be affixed It is composed of a drive mechanism A2 that presses (moves forward) toward the object W and moves the label applying means A1 backward (returns) to the initial position after the label is applied. The label applying means A1 and the drive mechanism A2 are rectangular. It is housed in a shape case.

  The label affixing means A1 includes an operating arm 1 reciprocally moved by a drive mechanism A2, a support plate 2 pivotally supported on the operating arm 1 so as to be rotatable at a predetermined angle, and both sides sandwiching the support shaft of the support plate 2 (both left and right sides). ) And a pair of arms 3 and 3 ′ arranged to be openable and closable via the opening and closing restricting means 4, adhesive bodies 5 and 5 ′ attached to the front ends of the pair of arms 3 and 3 ′, and the operating arm 1. It is composed of a bullet swing mechanism 6 for returning the support plate rotated relative to the initial position.

  The operating arm 1 is configured by forming a metal flat plate in a substantially rectangular shape in plan view, and one side portion (rear portion) in the longitudinal direction is connected and fixed to a pressing shaft that reciprocates in the drive mechanism A2 via a sleeve 18. The support plate 2 is placed on the upper surface of the other side portion (front portion) in the longitudinal direction and is pivotally supported by the support shaft 8.

  The support plate 2 is formed by forming a metal flat plate in a substantially oval shape in plan view, and one side portion on the short axis is pivotally supported on the operating arm 1 by a support shaft 8 and further supported. An arc groove 9 centered on the axis 8 is formed at an opening angle (for example, about 90 degrees) that is substantially equidistant from the left and right about the minor axis. A stopper pin 10 that is fixed upright on the surface of the operating arm 1 (the surface facing the support plate) is fitted into the circular arc groove 9. As a result, the support plate 2 pivotally supported on the operating arm 1 by the support shaft 8 is brought into contact with the stopper pin 10 at the end in the circumferential direction of the arc groove 9 formed in the support plate 2. The rotation range is restricted.

  Further, an engagement pin 11 is fixed on the short axis of the support plate 2 so as to be positioned outside the arc groove 9, and a pair of arms on both sides of the support shaft 8 on the surface of the support plate 2. 3 and 3 ′ are attached via an opening / closing regulating means 4 so as to be opened and closed.

The pair of arms 3, 3 ′ are formed by punching a metal flat plate into a substantially square shape in plan view, and one side portion (base portion) of the support plate 2 can be rotated by a rotation shaft 12. Attached to the other side part (front part) is a sticking body 5, 5 ′ having a suction function for holding the label a issued from the label issuing part B with the adhesive surface facing outward. Yes.
Further, a guide pin 4a of one member constituting the opening / closing regulating means 4 is fixed to a middle position (bent portion) in the longitudinal direction of the pair of arms 3 and 3 ′, and the guide groove 4b of the other member is formed in the above-described manner. It is established on the support plate 2. As a result, the pair of arms 3 and 3 ′ rotate within the range of the guide groove 4 b of the opening / closing restricting means 4 about the rotation shaft 12 with respect to the support plate 2. The guide groove 4b is formed in an arc shape with the rotation shaft 12 as the center.
Further, a coil spring 13 is stretched over the guide pins 4 a fixed to the pair of arms 3 and 3 ′, so that the pair of arms 3 and 3 ′ is inside the guide groove 4 b of the opening / closing regulating means 4. It is urged in the closing direction in contact with the end (side closer to the support shaft 8).

The sticking bodies 5 and 5 ′ fixed to the tip portions of the pair of arms 3 and 3 ′ are formed in a rectangular parallelepiped shape with an elastic body such as rubber or sponge, and a plurality of adsorptions are made on one side surface (label holding surface) thereof. Open holes 5a (three in a vertical line in the drawing), and connect the suction holes 5a to a hose (tube) 5b connected to a suction device (not shown) through an internal passage to the label holding surface. A suction force is generated. The number of the suction holes 5a to be opened in the stickers 5 and 5 'and the opening position are not limited. However, by providing two on the upper side as shown in the figure, rotation of the label to be sucked and held can be prevented, whereby the label Can be attached in a correct posture without being inclined with respect to the product.
Further, the surfaces (label holding surfaces) of the sticking bodies 5 and 5 'are configured to be slipped so that they can be smoothly applied with a scissors without being caught on the surface of the temporarily attached label. .

The support plate 2 rotates with respect to the operating arm 1 around the support shaft 8 within the opening angle range of the arc groove 9, but from the rotation position to the initial position (approximately the center in the circumferential direction of the arc groove 9). The elastic rocking mechanism 6 for returning the center line L connecting the position and the center of the support shaft 8 to the center line L ′ connecting the approximate center of the stopper pin 10 of the operating arm 1 and the center of the support shaft 8) The operating arm 1 and the support plate 2 are provided.
The elastic rocking mechanism 6 is erected and fixedly positioned on the outer side of the arc groove 9, the arc groove 9 established in the support plate 2, the stopper pin 10 of the operating arm 1 fitted into the arc groove 9. An engaging pin 11 and an ammunition machine 14 wound around the support shaft 8 are formed, and both end portions 14a and 14b of the ammunition machine 14 are crossed and extended to both sides sandwiching the stopper pin 10 and the engaging pin 11. When the support plate 2 is rotated, the engaging pin 11 is brought into contact with and engaged with one end portion 14a or 14b of the elastic machine 14, and the other end portion is engaged with the stopper pin 10. An elastic force for expanding the space between the end portions 14a and 14b and rotating the support plate 2 back to the initial position is accumulated.

  The label sticking means A1 provided with the pair of sticking bodies 5 and 5 'is pressed and contacted (forward movement) toward the sticking object W, and after the label sticking, the label sticking means A1 is retracted (returned) to the initial position. The drive mechanism A2 to be moved is arranged substantially parallel with a predetermined interval in the advancing and retreating direction of the label sticking means A1, and the base end side (lower side in the drawing) is pivotally supported on the case 15 by the shafts 16 and 16 ′. The first swing rod 17a and the second swing rod 17b, and the sleeves 18 and 18 'fixed to the other ends (upper side in the drawing) of the first swing rod 17a and the second swing rod 17b. Over the pressing shaft 19 installed, the air cylinder 20 installed over the case 15 and the second swing rod 17b, and the rotational displacement of the first swing rod 17a and the second swing rod 17b. And a tension spring 21 stretched.

The first swing rod 17a and the second swing rod 17b are formed to have the same turning radius around the shafts 16 and 16 ', and the end of the first swing rod 17a is connected to the pressing shaft 19. It is connected and fixed to a bracket 22 pivotally supported by a fixed sleeve 18. The end of the second swing rod 17b is connected and fixed to a bracket 22 'pivotally supported by a sleeve 18' slidably fitted to the pressing shaft 19.
The distance L1 from the shaft support position of the first swing rod 17a to the engagement position of the tension spring 21 and the distance L2 from the shaft support position of the second swing rod 17b to the engagement position of the tension spring 21 are as follows. , L1 <L2.

The air cylinder 20 is a double-acting single rod type air cylinder. The proximal end of the air cylinder 20 is rotatably supported by the case 15 by a shaft 23, and the distal end of the rod 20a that expands and contracts by air supply / stop switching is the second end. It is connected to the swing rod 17b. The air cylinder 20 is set so that the stroke end state where the rod 20a is extended to the maximum is the initial position of the label applying means A1 (standby position for receiving a label issued from the label issuing unit). When 20a strokes (moves forward) in the contraction direction, the pressing shaft 19 is moved via the first swing rod 17a, the second swing rod 17b, and the tension spring 21, and the label applying means A1 applies the label. It is comprised so that it may move to the direction to do.
The tension spring 21 is stretched and locked to the maximum when the label applying means A1 is located at the initial position, and the tension spring 21 contracts as the label attaching means A1 moves from the initial position in the direction of applying the label. Is stretched.

Next, the label sticking operation of the label sticking means A1 will be described with reference to FIGS.
First, the operation of applying the label a over the two side surfaces W1 and W2 sandwiching the corner (substantially right angle) of the cardboard box (object to be attached) W conveyed by the conveyor 101 will be described with reference to FIGS. .
(1) The label affixing means A1 sucks and holds the label a issued from the label issuing unit B at the initial position. That is, the sticking bodies 5 and 5 ′ attached to the tips of the pair of arms that are closed at the initial position hold the label a on the surface (label holding surface) with the adhesive surface facing outward (see FIG. 5 (a)).
(2) The length of the label a in the longitudinal direction of the label a that is adsorbed and held by the label affixing means A1 that adsorbs and holds the label a is pressed toward the cardboard box (object to be adhered) W that is conveyed and moved by the operation of the drive mechanism A2. Side W1 where the patch 5 of one arm 3 that holds and holds approximately half of the height (the first half along the conveyance direction of the cardboard box (target object) W) sandwiches the corner of the cardboard box (target object) W The sticking body 5 ′ of the other arm 3 ′ that is pressure-contacted and temporarily attached to the other half of the label a is not in contact with the cardboard box (object to be stuck) W and is in a suspended state. (See FIG. 5 (b)).

(3) When the label affixing means A1 is further pushed toward the cardboard box (target object) W by the operation of the drive mechanism A2, one arm pressed against the side surface W1 of the cardboard box (target object) W The support plate 2 rotates counterclockwise (arrow direction) with respect to the operating arm 1 with the sticking body 5 of 3 as a fulcrum, and the sticking body 5 ′ of the other arm 3 ′ is a cardboard box (object to be pasted). It contacts the side surface W2 from the corner of W. Thereby, the label a is bent at the corner of the cardboard box (object to be pasted) W. When the support plate 2 is rotated, one end 14a of the ammunition machine 14 is pushed outward by the engagement pin 11 fixed to the support plate 2 (see FIG. 6A).
(4) When the drive mechanism A2 continues to push further, one patch 5 abuts against and contacts the side surface W1 of the cardboard box (bonding object) W, and the other patch 5 'is the cardboard box (bonding object). Since the support plate 2 can be moved forward along the side surface W2 from the corner of W, the support plate 2 rotates counterclockwise about the support shaft 8, and the rotation of the support plate 2 causes the arm 3 to rotate. The sticking body 5 attached to the tip part is attached to the other arm 3 'by stroking the surface of the label a which is temporarily attached to the side face W1 of the cardboard box (thing to be attached) W toward the end of the label. The applied body 5 'is rotated by the opening / closing restricting means 4 about the rotation shaft 12, and the other half of the label a bent at the corner is scooped along the side face W2 toward the end of the label. (See FIG. 6 (b)).

(5) When the driving mechanism A2 is pushed toward the stroke end, the sticking body 5 that abuts against and contacts the side surface W1 of the cardboard box (sticking object) W has an arm 3 whose opening / closing restriction is centered on the rotation shaft 12. The inside of the guide groove 4b of the means 4 is rotated from the inside to the outside. That is, as the pair of arms 3 and 3 ′ move toward the cardboard box (object to be bonded) W while moving to the maximum opening angle, the label a is along the surfaces of the side surface W1 and the side surface W2 sandwiching the corner portion. Affixed securely (see FIG. 7).
In the label sticking operation, the pair of arms 3 and 3 ′ are opened following the transport direction of the sticking object W, and the label is attached to the surface of the sticking object W with scissors with the sticking bodies 5 and 5 ′. It is not necessary to temporarily stop the transfer of the object to be attached for labeling, and the number of labeling processes per hour can be increased.

  FIG. 8 shows a case where the adherend W ′ has a sharp corner and the label a is pasted across two side surfaces W1 ′ and W2 ′ sandwiching the acute corner of the adherend W ′. Show. Also in this case, as in the case where the label a is applied to the cardboard box (object to be attached) W, the label attaching means A1 is attached to the object W from the side perpendicular to the conveying direction of the object W ′ to be conveyed and moved. The patch 5 that is pushed toward the surface and sucks and holds one half of the label a is temporarily attached by pressing one half of the label a against the side surface W1 ′, while the other patch 5 ′ is attached to the support plate 2. By rotation and rotation of the arms 3 and 3 ′ with respect to the support plate 2, the arm 3 and 3 ′ wrap around the surface of the side surface W2 ′, and the other half of the label a is bent at the corner and pressed against the side surface W2 ′. When the driving means A2 is further pushed toward the stroke end, the pair of arms 3 and 3 ′ open following the movement of the object to be pasted W ′, and the two sides of the label a sandwiching an acute corner. Paste W1 'and W2' with scissors. It should be noted that not only the surface (label holding surface) of the patch 5, 5 'but also the side peripheral surface of the patch 5, 5' acts as shown in FIG. Done.

When the rod 20a of the air cylinder 20 of the drive mechanism A2 moves in the extending direction to move (return) the label applying means A1 to the initial position, the tension spring 21 is also extended with the rotation of the second swing rod 17b. Accordingly, the tensile force is increased, and the stopper protruding edge 19 ′ is engaged by the movement of the sleeve 18 ′ of the second swing rod 17b to retract the pressing shaft 19, whereby the label applying means A1 is attached to the object to be attached. Move away from the surface of W and W ′.
When the pair of sticking bodies 5 and 5 ′ of the label sticking means A1 are separated from the surfaces of the objects to be pasted W and W ′ (the surface of the pasted label), the arms have been forcibly opened by contact with the objects to be pasted Since the external force is removed from 3 and 3 ′, the pair of arms 3 and 3 ′ that have been opened is closed in the direction in which the guide pin 4 a comes into contact with the inner end of the guide groove 4 b of the opening / closing regulating means 4 due to the tension of the coil spring 13. The support plate 2 that has been urged by and further rotated by a predetermined angle is returned to its initial position by the resilience of the bullet 14 of the bullet swing mechanism 6. Thereby, the standby state for the next label application is established.

FIG. 9 shows an embodiment in which the label sticking means A1 is rotatable about the axis of the pressing shaft 19 of the drive mechanism A2, and the label sticking means A1 in the embodiment shown in FIG. 2 is turned 90 degrees clockwise. Shows the state. In the same figure, this label sticking device is installed on the side of the transport table 101 for transporting the object to be pasted W, and the label is pasted on both the side W1 and the upper side W3 of the object W to be moved. To do.
The labeling means A1 can be rotated around the axis of the pressing shaft 19 of the driving mechanism A2. For example, the shaft 24 is integrally formed on the sleeve 18 attached to the tip of the pressing shaft 19, On the other hand, the operating arm 1 of the label sticking means A1 is connected and fixed to a rotating cylinder 25 that is rotatably fitted to the shaft portion 24 of the sleeve 18, and protrudes from the rotating cylinder 25 of the shaft portion 24. A retaining ring (E-ring) 26 is fitted on the outer peripheral surface of the portion, and the rotating cylinder 25 is prevented from being removed.

Further, between the outer peripheral surface of the shaft portion 24 and the inner peripheral surface of the rotating cylinder 25, there is provided a moderation applying means 27 for applying moderation to the rotation of the rotating cylinder 25, whereby the label attaching means A1. Can be rotated around the axis of the pressing shaft 19 and held in the rotated state.
When this label sticking means A1 is configured to rotate in the direction around the axis orthogonal to the direction of movement by the drive mechanism A2, the planar view shape covers two surfaces sandwiching the acute angle or obtuse angle of a rhombus or trapezoid box. Label can be attached.

As the moderation means 27, for example, as shown in FIG. 9, substantially semicircular concave portions 27a are formed on the outer peripheral surface of the shaft portion 24 at a predetermined interval (for example, an interval of 90 °) in the circumferential direction. A through hole 27b is formed in the peripheral wall of the moving cylinder 25 in the radial direction, and a ball (metal ball) 27c is accommodated in the through hole 27b so as to be able to be ejected and retracted by a coil spring 27d, and the ball 27c is accommodated in the recess 27a. The turning state is fixed by inserting.
In addition, since the label sticking means A1 is the same as the structure shown by the previous Example, description is abbreviate | omitted.
In the figure, 28 is a guide member fixed to the upper surface of the operating arm 1, and the guide member 28 is formed with a groove for fitting and holding the outer peripheral edge of the support plate 2 that rotates with respect to the operating arm 1. As a result, the support plate 2 can rotate stably.

The label sticking device of the present invention is not limited to the illustrated embodiment, and can be appropriately changed without changing the gist of the present invention.
(1) In the illustrated embodiment, the rotation angle of the support plate relative to the operating arm is approximately 90 degrees at the maximum (approximately 45 degrees in the clockwise and counterclockwise directions from the initial position), but the rotation angle of the support plate is 90 degrees. May be greater than degrees.
(2) In the illustrated embodiment, the suction function in the sticking body of the label sticking means has been described in the configuration in which the hose is connected to the suction device, but is not limited thereto, for example, a fan is provided inside the sticking body, A suction force may be generated on the surface of the patch by rotation of the fan.
(3) In the illustrated embodiment, the structure composed of a combination of an air cylinder and a link mechanism is shown as a drive mechanism for moving the label sticking means in the direction of the object to be pasted. However, the drive mechanism is not limited to this, for example, a motor Any mechanism can be used as long as it can move the label attaching means linearly with respect to the object to be attached, such as a cam mechanism.
(4) Although the sticking body of the label sticking means has a rectangular parallelepiped shape in the illustrated embodiment, it is not limited to this shape. However, in consideration of sticking the temporarily attached label with scissors, it is preferable to have a configuration that allows at least the height of the label (the dimension in the direction crossing the longitudinal direction of the label). .
(5) In the illustrated embodiment, a support plate is pivotally supported by a predetermined angle on an operating arm that reciprocates toward an object to be pasted, and a pair of arms are provided on both sides sandwiching the rotation center of the support plate. However, the present invention is not limited thereto, and the support plate is not provided, and a pair of arms are closed via the open / close restricting means on both sides of the center of the tip of the operating arm that reciprocates. It may be arranged in such a way that it can be biased in the direction and can be opened and closed. Furthermore, a long hole is provided in the joint part of the rotating arm arranged at the tip of the reciprocating working arm, and the arm joint part is slidably mounted along the long hole. May be urged in the sticking direction, and when either one of the pair of arms abuts the object to be stuck, the long hole may slide in a direction opposite to the sticking direction. By using this method, the number of parts is reduced, and when one arm rotates in the opening direction, the other arm can also follow and rotate in the same direction, and the label is applied over the square surfaces (two surfaces) of the object to be pasted. It is possible to produce an effect that it can be affixed neatly.

The external view which shows the use condition of the label sticking apparatus which concerns on this invention. The label sticking means part of a label sticking apparatus is shown, (a) is a top view, (b) is a front view. (A) is sectional drawing which follows the (X)-(X) line of FIG. 2, (b) is sectional drawing which follows the (Y)-(Y) line of FIG. The front view which shows a label sticking means and a drive mechanism. It is explanatory drawing (plan view) which shows sticking operation | movement, (a) is the state which a label sticking means adsorbs and holds a label in an initial position, (b) is a half part of a label on a to-be-pasted article when a label sticking means moves. The state to temporarily wear. FIG. 5 is an explanatory diagram (plan view) showing the continuation of the sticking operation of FIG. 5, (a) is a state in which the support plate is rotated and the other half of the label is bent along the wall surface with the other sticker, and (b) is A state in which the other half of the label that has been folded when the patch is opened is crimped to the object. It is explanatory drawing (plan view) which shows the last stage of sticking operation | movement, and a state which completes sticking pasting a label on the two surfaces which pinch | interpose the corner | angular part of a to-be-attached object by a support plate rotating and an arm moving. The top view which shows the state which affixes a label over two surfaces which pinch | acute an acute corner | angular part. The front view which shows the structure which enabled the label sticking means to rotate to the periphery of the axis of a moving direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS A ... Label sticking apparatus A1 ... Label sticking means A2 ... Drive mechanism B ... Label issuing part W ... Sticking object a ... Label 1 ... Actuating arm 2 ... Support plate 3, 3 '... A pair of arms 4 ... Opening / closing control means 4a ... Guide pin 4b ... Guide groove 5,5 '... Applying body 6 ... Ejection rocking mechanism 8 ... Support shaft 9 ... Arc groove 10 ... Stopper pin 11 ... Engagement pin 12 ... Rotating shaft 13 ... Coil spring 14 ... Morning machine

Claims (5)

A label affixing device that receives a label issued from a label issuing unit with a pair of arms, moves toward an object to be affixed, and affixes the label,
The pair of arms are urged in the closing direction, and when one arm rotates in the opening direction, the other arm also rotates following the same direction,
The pair of arms includes a support plate that is pivotally supported by an operating arm that reciprocates toward an object to be pasted, and a support plate that is pivotable by a predetermined angle. And can be opened and closed
A sticker having an adsorption function for adsorbing and holding the label with the adhesive surface facing outward is fixed to the tip of the pair of arms,
When a part of the label adsorbed and held by at least one of the pasting bodies is temporarily attached to the pasting object by the forward movement of the operating arm, the other pasting body and the pasting body temporarily wearing the label are moved by the opening of the arm. A label affixing device, wherein the label is affixed by pressing along a surface of an object to be adhered. The operating arm is provided with a support plate that pivotally supports the pair of arms, the support plate is pivotally supported by a predetermined angle, and opening / closing regulating means are disposed on both sides of the pivot center, and the support plate Is urged by a resilient swing mechanism to return to the initial position relative to the operating arm,
The open / close restricting means includes a guide groove that is provided between the support plate and the arm, the guide groove being centered on a rotation axis of the arm, and a guide pin that fits into the guide groove. Item 2. A labeling device according to item 1.   The elastic rocking mechanism includes an arc groove formed on the support plate with the support shaft as a center, an engagement pin standing and fixed outside the arc groove, and a stopper fixed to the operating arm and fitted into the arc groove. It is composed of a pin and a bullet machine that returns a support plate that rotates horizontally with respect to the operating arm to an initial position. The bullet machine is wound around the outer periphery of the support shaft, and both ends of the bullet machine are crossed. The label sticking device according to claim 2, wherein the label sticking device extends and projects on both sides sandwiching the stopper pin and the engaging pin.   The label sticking device according to any one of claims 1 to 3, wherein the sticking body is formed of an elastic body that is deformed by pressure bonding to an object to be stuck.   The label sticking means including the actuating arm and the support plate is attached so as to be rotatable around a shaft of a drive mechanism that moves the label sticking means. The labeling device described.

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