JP2012218754A - Sheet application apparatus and adjustment method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance pressing force against an adherend in adhesion of an adhesive sheet by increasing the distance of the adhesive sheet blown out.SOLUTION: The sheet application apparatus 10 includes: a delivery means 11 for delivering an original roll R including the adhesive sheet S tempoeraily stuck to a strip release sheet RL; and a holding pressing means 12 capable of sucking and holding the adhesive sheet S delivered by the delivery means 11 and then applying it to an adherend W. The holding pressing means 12 includes a plurality of suction/blowout ports 31 and is provided so that the adhesive sheet S can be sucked and held by sucking gas through the suction/blowout ports 31 and so that the adhesive sheet S can be blown out, and pressed against/stuck to the adherend W by blowing gas through the suction/blowout ports 31. The suction/blowout ports 31 include blowout enhancement means 40. The blowout enhancement means 40 is provided in a shape such that the opening area is gradually reduced toward the direction of blowing the gas.

Description

  The present invention relates to a sheet sticking apparatus and an adjustment method thereof, and more particularly to a sheet sticking apparatus capable of blowing an adhesive sheet held by suction and sticking it to an adherend and an adjustment method thereof.

  Conventionally, a sheet sticking apparatus for sticking an adhesive sheet such as a label to an adherend has been widely used, and such a sheet sticking apparatus is disclosed in Patent Document 1, for example. The sheet sticking device of Patent Document 1 includes a chamber block communicating with an air source and a nozzle block supported by the chamber block, and the nozzle block is provided with a number of nozzles. In the sheet sticking device of the same document, when the air source starts suction, air is sucked from the nozzle and the label is sucked to the nozzle block. On the other hand, when the air source introduces air into the chamber block, the air is ejected from the nozzle, and the adsorbed label is blown off and pasted.

JP 2003-327223 A

  However, in Patent Document 1, the distance between the adherend to which the label is stuck and the nozzle block becomes small because the distance that the label blows off is short when the label is stuck. For this reason, every time the size of the adherend is changed, the position of the nozzle block needs to be adjusted in order to keep the gap between the adherend and the nozzle block accordingly, and the work load increases. There is an inconvenience. In addition, the pressing force at the time of applying the label is insufficient, which causes inconvenience that defective label application is likely to occur.

[Object of invention]
The objective of this invention is providing the sheet sticking apparatus which can lengthen the distance which blows off the said adhesive sheet, and can raise the pressing force to a to-be-adhered body, and its adjustment method, when sticking an adhesive sheet.

In order to achieve the above object, the present invention adsorbs from the base sheet side the feeding means that feeds out the adhesive sheet having an adhesive layer on one surface of the belt-like base sheet, and the feeding sheet fed out by the feeding means. A holding and pressing means that is provided so as to be able to be held and can be attached by pressing the held adhesive sheet against the adherend,
The holding and pressing means includes a plurality of suction outlets, and is provided so that the adhesive sheet can be sucked and held by sucking gas from the suction outlets, while the adhesive sheet is ejected from the suction outlet by ejecting gas. It is provided so that it can be blown off and stuck to the adherend,
The suction outlet has an ejection strengthening means, and the ejection strengthening means is provided in such a shape that its opening area gradually decreases in diameter in the gas ejection direction.

The present invention is also provided with a feeding means for feeding out an adhesive sheet having an adhesive layer on one surface of a belt-like base sheet, and the adhesive sheet fed out by this feeding means so as to be sucked and held from the base sheet side. And a holding and pressing means capable of pressing and holding the held adhesive sheet against the adherend,
The holding and pressing means includes a plurality of suction outlets, and is provided so that the adhesive sheet can be sucked and held by sucking gas from the suction outlets, while the adhesive sheet is ejected from the suction outlet by ejecting gas. It is provided so that it can be blown off and stuck to the adherend,
A jet reinforcing means is detachably provided at the suction outlet, and the jet reinforcing means is provided in such a shape that its opening area is gradually reduced in diameter in the gas jetting direction. .

  In the present invention, it is preferable to adopt a configuration in which a female screw process is performed on the suction outlet, while a male screw process is performed on the jet reinforcing means to be screwed into the female screw.

  Moreover, the structure that the said ejection reinforcement | strengthening means is provided in a funnel shape is also employ | adopted preferably.

Furthermore, the adjustment method of the sheet sticking apparatus of the present invention is an adjustment method of the sheet sticking apparatus according to any one of claims 2 to 4,
A method is adopted in which the blow-off of the adhesive sheet is adjusted by individually attaching the ejection reinforcing means individually to at least a part of the suction outlet facing the adhesive sheet sucked and held by the holding and pressing means. ing.

  According to the present invention, since the ejection strengthening means is provided in the shape described above, the principle of increasing the flow velocity by restricting the flow of the gas to be ejected can be worked when the adhesive sheet is stuck. Thereby, it is possible to increase the blow-off distance of the adhesive sheet with a simple configuration, and to increase the interval between the holding and pressing means and the adherend. As a result, for example, even if the size of the adherend is changed, the operation of changing the position of the holding and pressing means can be omitted. Moreover, it becomes possible to increase the pressing force to the adherend due to the increase in the gas flow velocity, and it is possible to suppress the occurrence of defective sticking of the adhesive sheet.

  Further, when the ejection reinforcing means is detachably provided at the suction outlet, the ejection reinforcing means can be attached to a part of the plurality of suction outlets, and an adhesive sheet can be attached according to various purposes. .

  Furthermore, when threading is performed so that the suction / injection port and the ejection strengthening means are screwed together, the ejection strengthening means can be easily attached to and detached from the suction outlet without using a special technique or tool. Become.

  Further, if the jet strengthening means is provided in a funnel shape, the gas flow can be smoothed and the gas flow rate can be increased more favorably.

The schematic front view of the sheet sticking apparatus which concerns on 1st Embodiment. The bottom view of an adsorption surface. (A)-(C) are the fragmentary sectional views of the suction inlet which concerns on a modification. (A) And (B) is a fragmentary sectional view of the suction inlet and the ejection reinforcement | strengthening means which concern on 2nd Embodiment and its modification.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In this embodiment, unless otherwise specified, terms indicating directions (eg, up, down, left, right) are based on FIG.

[First Embodiment]
1 to 2, the sheet sticking device 10 according to the first embodiment is arranged in parallel with a conveying means CV including a belt conveyor or the like that conveys the adherend W in the left direction. The sheet sticking device 10 is provided so as to be able to hold the adhesive sheet S fed out from the feeding means 11 and the feeding means 11 that feeds the adhesive sheet S for sticking to the adherend W, and the held adhesive sheet S. The holding pressing means 12 is configured to be pressed against the adherend W. The adhesive sheet S includes a base sheet BS and an adhesive layer AD provided on one surface of the base sheet BS, and the adhesive sheet S is temporarily attached to the release sheet RL via the adhesive layer AD. Has been.

  The feeding means 11 includes a support shaft 21 that supports a roll-shaped original fabric R in which an adhesive sheet S is temporarily attached to a strip-shaped release sheet RL at a predetermined interval, and an original fabric R that is fed from the support shaft 21. The release plate 22 that folds the release sheet RL and peels the adhesive sheet S from the release sheet RL, the drive roller 24 and the pinch roller 25 that sandwich the release sheet RL after passing through the release plate 22, and after passing through these A take-up shaft 26 that winds the release sheet RL with a predetermined torque by a driving device (not shown) is provided. The driving roller 24 is rotatably provided via a motor M as a driving device.

The holding and pressing means 12 includes a bottom wall 29B, a side wall 29C, and an upper wall 29D. The head 29 forms a chamber 30 therein, and penetrates the bottom wall 29B. A plurality of suction outlets 31 formed with a space therebetween, a decompression pipe 35 and a pressurization pipe 36 connected to the chamber 30, a decompression means (not shown) communicating with the decompression pipe 35, and a pressurization (not shown) communicating with the pressurization pipe 36 Means. The lower surface of the bottom wall 29B of the head portion 29 is an adsorption surface 29A, and a cylinder 33 as a driving device is connected to the upper surface of the upper wall 29D, and the head portion 29 is provided so as to be able to move up and down via the cylinder 33. Yes. In addition, the cylinder 33 is good to comprise the thing which can stop the head part 29 in a predetermined position and can be stopped in the middle. The bottom wall 29B is configured to be attachable / detachable / openable with respect to the side wall 29C, and the closing means 44, 45 described later can be attached / detached in a detached or opened state.
The decompression means is constituted by a decompression pump, a vacuum ejector or the like, and is provided so as to suck and hold the adhesive sheet S in contact with the suction surface 29A from the base sheet BS side through the suction pipe 31 through the decompression pipe 35. ing.
The pressurizing means is constituted by a pressurizing pump, a pressurizing tank, or the like, enables gas to be ejected from the suction outlet 31 via the pressurizing pipe 36, and blows off the adhesive sheet S held by suction on the suction surface 29A. The adhesive sheet S can be applied to the adherend W by pressing it.

  A jet reinforcing means 40 is formed on the inner peripheral surface of the suction outlet 31, and the jet strengthening means 40 has an opening area in the direction in which the suction outlet 31 jets gas, that is, downward. Is provided in a funnel shape that gradually decreases in diameter. As a result, it is possible to apply the principle that the flow velocity is increased by smoothly restricting the flow of the gas ejected from the suction outlet 31.

Here, the ejection reinforcement means 40 can be exemplified by the shapes shown in FIGS. 3A to 3C in addition to the shapes described above.
3A is provided in a shape including a first region 41 extending upward from the suction surface 29A and a second region 42 formed above the first region 41. As shown in FIG. . The first region 41 is formed on a cylindrical inner peripheral surface, while the second region 42 is formed by salamomi processing and is provided in a shape in which the opening area gradually decreases in diameter downward.

  The first region 41 of the ejection strengthening means 40 in FIG. 3B is formed by subjecting the bottom wall 29B to internal thread processing, and the second region 42 is provided in a funnel shape, similar to the jet strengthening means 40 of FIG. It has been. In the second region 42 of FIG. 3B, a hexagon socket set screw 44 serving as a closing means is provided so as to be able to be screwed, and in the state where these are screwed, the suction outlet 31 is provided so as to be able to be closed. By removing the hexagon socket set screw 44 from the suction port 31, the suction port 31 can be opened.

  The first region 41 of the jet strengthening means 40 in FIG. 3C is provided with an intermediate recess 41A on the inner peripheral wall thereof, and the second region 42 is provided in a funnel shape similarly to the jet strengthening means 40 in FIG. Yes. 3C, the closing means 45 is detachably provided, and the closing means 45 includes a main body 45A that fits in close contact with the inner peripheral wall of the second area 42, and the main body 45A. While being provided so as to be able to project and retract from the outer surface, a projecting and projecting convex portion that can be engaged with the intermediate concave portion 41A is provided. In this case, examples of the projecting and projecting convex portion include a ball plunger made of a ball 45C provided so as to be able to project and retract by an urging means such as a spring 45B and resin, and an elastic member such as resin and rubber without urging means. The closing means 45 can be attached to and detached from the suction outlet 31 more quickly and easily.

  Next, an adjustment method for using the sheet sticking apparatus 10 employing FIGS. 3B and 3C will be described.

  As an initial adjustment, the shape of the adhesive sheet S and the feeding position of the adhesive sheet S fed from the feeding means 11 to the suction surface 29A are confirmed. Then, hexagon socket set screws 44 and closing means 45 are individually attached from the suction surface 29A side to the suction outlets 31 located outside the adhesive sheet S arranged at the feeding position, respectively. The spout 31 is closed. For example, as shown in FIG. 2, when the adhesive sheet S having a shape indicated by a two-dot chain line is drawn out to the suction surface 29 </ b> A, the suction port 31 (shown in black in the figure) located outside the adhesive sheet S. The suction outlet 31) is closed.

  Next, an operation similar to that described below is performed, and a trial operation for attaching the adhesive sheet S to the dummy adherend W is performed. At this time, for example, as shown with a net pattern in FIG. 2, hexagon socket set screws 44 and closing means 45 are provided at every other vertical suction port 31 in the suction port 31 facing the adhesive sheet S. Can be worn. And if the obstruction | occlusion state of the suction inlet 31 in which adhesion | attachment of the adhesive sheet S is performed favorably is established, the bottom wall 29B will be removed or opened from the side wall 29C, and the hexagon which will obstruct | occlude the suction outlet 31 of FIG. 3 (B). After removing the set screw 44 with a hole, a hexagon socket set screw 44 is attached to each of the removed suction outlets 31 from the chamber 30 side. Thereby, the lower end surface of the hexagon socket set screw 44 is positioned substantially on the same surface as the suction surface 29A, and the closed suction port 31 and suction surface 29A can be formed flat. If it is not necessary to make the suction port 31 and the suction surface 29A flat, the hexagon socket set screw 44 attached to each suction port 31 does not need to be replaced, and the suction port shown in FIG. The closing means 45 at the spout 31 may not be replaced.

  Next, a method for applying the adhesive sheet S according to the present embodiment will be described.

  When the adherend W is transported by the transporting means CV and detected by a sensor (not shown) at a predetermined position, the motor M of the feeding means 11 is operated to feed the original fabric R, and the release plate 22 removes the peeled sheet RL from the release sheet RL. The adhesive sheet S is peeled off. As a result, the adhesive sheet S is fed out to the head portion 29 side that stands by on the leading end side of the peeling plate 22. The adhesive sheet S fed out to the head portion 29 side is sucked and held on the suction surface 29A from the base material sheet BS side by the suction outlet 31 communicated with the pressure reducing means via the pressure reducing pipe 35. On the other hand, when the adherend W reaches a position below the head portion 29, it is detected by a sensor (not shown), and the conveyance is stopped by a stopper (not shown).

  From this state, the cylinder 33 is operated to lower the head portion 29 to approach the adherend W (for example, the distance from the upper surface of the adherend W to the suction surface 29A is 10 mm). Thereafter, the communication with the pressure reducing means is interrupted, and at the same time, the suction outlet 31 is communicated with the pressure means via the pressure pipe 36. Thereby, gas is ejected from the opened suction outlet 31, and the adhesive sheet S is blown off by this ejection, and the adhesive sheet S is pressed against the adherend W and stuck. At this time, since the ejection strengthening means 40 is formed at the suction outlet 31, it is possible to accelerate by narrowing the flow of the gas to be ejected, increase the blow-off distance of the adhesive sheet S, or attach the adhesive sheet S to the adherend W. The pressing force increases.

  Therefore, according to such an embodiment, for example, even when the height of the adherend W is reduced and the distance between the head portion 29 and the adherend W is increased, the adherence to the adherend W is increased. The pressing force can be kept sufficiently. Thereby, even if the size of the adherend W transported by the transport means CV varies, the operation of adjusting the displacement amount of the head portion 29 by the cylinder 33 can be eliminated according to the variation. Therefore, it is possible to easily deal with the adherend W having a large size in a short time.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. In the embodiment, the same reference numerals are used for the same or equivalent components as in the first embodiment, and the description is omitted or simplified.

  In FIG. 4 (A), in 2nd Embodiment, the ejection reinforcement | strengthening means 50 is provided in the suction outlet 31 so that attachment or detachment is possible. The suction outlet 31 of the embodiment is formed by subjecting the bottom wall 29B to internal thread processing. The lower outer peripheral surface of the ejection reinforcing means 50 is subjected to male thread processing and can be screwed into the female thread of the suction outlet 31. The inner peripheral surface of the jet strengthening means 50 is provided in the same funnel shape as the jet strengthening means 40 of FIG. Thereby, in the suction outlet 31 to which the ejection reinforcement means 50 is attached, the flow velocity of the gas to be ejected can be increased as compared with the suction outlet 31 to which the ejection reinforcement means 50 is not attached.

  Note that the suction outlet 31 and the jet strengthening means 50 may be changed to the configuration shown in FIG. 4B. In the same figure, an intermediate recess 31A is provided on the inner peripheral wall of the suction outlet 31, and the jet strengthening means. A protruding and projecting portion including a spring 50A and a ball 50B similar to FIG.

  In this embodiment, when performing the first adjustment using the sheet sticking device 10, first, the shape of the adhesive sheet S and the feeding position of the adhesive sheet S fed from the feeding means 11 to the suction surface 29A are confirmed. Thereafter, after removing or opening the bottom wall 29B from the side wall 29C, the ejection reinforcing means 50 is individually and independently attached to at least a part of the suction outlet 31 facing the adhesive sheet S. At this time, in the jet strengthening means 50 in FIG. 4A, the upper end side is rotated, so that the jet strengthening means 50 in FIG. It becomes easy to mount by pushing into the. Although it does not specifically limit as a mounting position of the ejection reinforcement | strengthening means 50, It is set as the suction outlet 31 adjacent to the outer edge of the adhesive sheet S, or the suction outlet 31 of every other vertical row, or opposes the adhesive sheet S. All of the suction outlets 31 may be used. Accordingly, it is possible to apply the adhesive sheet S while changing the blowing method and the blowing distance according to conditions such as the shape and rigidity of the adhesive sheet S and the orientation of the adherend surface of the adherend W. A hexagon socket set screw 44 and a closing means 45 are attached to the suction port 31 located outside the adhesive sheet S fed out to the suction surface 29A and a part of the suction port 31 facing the adhesive sheet S. Further, it is possible to check the pressing force, blowing method, blowing distance, and the like of the adhesive sheet S on the adherend W, and to close the appropriate suction port 31.

As described above, 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.
In other words, the present invention has been illustrated and described mainly with respect to specific embodiments, but without departing from the scope of the technical idea and object of the present invention, the shape, position, or With respect to the arrangement and the like, those skilled in the art can make various changes as necessary.
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, in addition to the shape described above, the ejection strengthening means 40 and 50 may be changed as long as the opening area gradually decreases in diameter in the gas ejection direction.

  Further, the cylinder 33 may be omitted when the adhesive sheet S is blown off from the feeding position where the adhesive sheet S is fed from the feeding means 11 to the suction surface 29A and can be attached to the adherend W.

  The feeding means 11 can be variously modified as long as feeding can be performed as described above.

  Furthermore, the drive device in the embodiment includes an electric device such as a rotation motor, a linear motion motor, a linear motor, a single axis robot, and an articulated robot, an actuator such as an air cylinder, a hydraulic cylinder, a rodless cylinder, and a rotary cylinder. In addition to these, a combination of them directly or indirectly may be employed (some of them overlap with those exemplified in the embodiment).

DESCRIPTION OF SYMBOLS 10 Sheet sticking apparatus 11 Feeding means 12 Holding press means 31 Suction / ejection port 40 Ejection strengthening means 50 Ejection strengthening means AD Adhesive layer BS Base material sheet S Adhesive sheet W Substrate

Claims (5)

A feeding means for feeding out an adhesive sheet having an adhesive layer on one surface of a belt-like base sheet, and an adhesive sheet that is provided so as to be able to adsorb and hold the adhesive sheet fed out by the feeding means from the base sheet side. Holding pressing means that can be applied to the adherend by pressing the adherend,
The holding and pressing means includes a plurality of suction outlets, and is provided so that the adhesive sheet can be sucked and held by sucking gas from the suction outlets, while the adhesive sheet is ejected from the suction outlet by ejecting gas. It is provided so that it can be blown off and stuck to the adherend,
The sheet jetting device according to claim 1, wherein the suction outlet has a jet strengthening means, and the jet strengthening means is provided in a shape in which the opening area gradually decreases in the gas jet direction. A feeding means for feeding out an adhesive sheet having an adhesive layer on one surface of a belt-like base sheet, and an adhesive sheet that is provided so as to be able to adsorb and hold the adhesive sheet fed out by the feeding means from the base sheet side. Holding pressing means that can be applied to the adherend by pressing the adherend,
The holding and pressing means includes a plurality of suction outlets, and is provided so that the adhesive sheet can be sucked and held by sucking gas from the suction outlets, while the adhesive sheet is ejected from the suction outlet by ejecting gas. It is provided so that it can be blown off and stuck to the adherend,
A jet reinforcing means is detachably provided at the suction outlet, and the jet reinforcing means is provided in a shape in which the opening area gradually decreases in diameter in the gas jetting direction. Sheet pasting device.   The sheet sticking device according to claim 2, wherein the suction port is provided with a female thread, and the jet reinforcing means is provided with a male screw that is screwed into the female screw.   The sheet sticking device according to claim 1, 2 or 3, wherein the ejection reinforcing means is provided in a funnel shape. A method for adjusting a sheet sticking device according to any one of claims 2 to 4,
The blowout of the adhesive sheet is adjusted by attaching the ejection reinforcing means individually to at least a part of the suction outlet facing the adhesive sheet sucked and held by the holding and pressing means. Adjustment method of sheet sticking device.

Images