JP2011093582A - Apparatus and method of pasting sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus and a method of pasting a sheet capable of pasting a plurality of adhesive sheets to a single target while simplifying and downsizing a structure. <P>SOLUTION: A workpiece W is sandwiched to press between a suction belt 45 of sheet conveyance means 4 and a pressing belt 54 of pressing means 5. In addition, speed of the suction belt 45 and speed of the pressing belt 54 are appropriately set, whereby the number of rotations of the rotated workpiece W and conveyance speed can be easily controlled, and any number of adhesive sheets S to be pasted to one workpiece W can be specified. Therefore, pasting the plurality of adhesive sheets S can easily be supported without preparing feeding means 3 for each of the number of sheets to be pasted. Thus, the whole structure of the apparatus 1 of pasting the sheet can be simplified and downsized, and an apparatus cost and an installation cost can be reduced. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a sheet sticking apparatus and sticking method for sticking an adhesive sheet to an outer peripheral surface of an adherend.

Conventionally, an automatic label sticking device for sticking a label to an outer peripheral surface of an adherend such as a bottle is known (see, for example, Patent Document 1).
The label applicator is configured to support an adherend by supporting a transport conveyor for transporting an adherend, a pair of label supply devices provided on both sides of the transport conveyor, and labels supplied from these label supply devices. And a pair of label support devices to be attached. One of the pair of label support devices is configured by a suction device that sucks and holds a label supplied from one label supply device, and the other label support device suctions a label supplied from the other label supply device. It has a suction device and a flexible belt that rotates along the transport conveyor while holding the sucked label. Then, by rotating the adherend by the flexible belt of the other label support device and transporting the adherend by the transport conveyor, one and the other two labels are placed at opposing positions on the surface of the adherend. It is designed to be attached at the same time.

Japanese Examined Patent Publication No. 61-12815

However, in the label sticking device as in Patent Document 1, as the circumference of the adherend or the label length to be stuck becomes longer, the total length of the pair of label support devices must be lengthened, and the device becomes larger. The inconvenience arises. Further, even when such a large-sized device has a shorter circumference or a shorter label length, the next adherend is removed until the previous adherend is discharged from the pair of label support devices. Since it cannot be put into the label support device, there arises a disadvantage that the processing capacity cannot be improved.
When two labels are to be attached to one adherend, if a pair of a label supply device and a label support device are prepared, the application device becomes larger and complicated, and not only the device cost and installation cost, but also maintenance. Inconveniences such as increased labor and cost. Furthermore, in the conventional label sticking apparatus, two labels can be stuck on one adherend, but in order to stick three or more labels, a label supply device and a label support device are additionally provided. There is also a problem that it is difficult to improve for attaching three or more labels because the entire label attaching apparatus needs to be installed and the entire label attaching apparatus becomes larger.

  The objective of this invention is providing the sheet sticking apparatus and sticking method which can stick an adhesive sheet to the outer peripheral surface of a to-be-adhered body, aiming at the simplification and size reduction of a structure.

  In order to achieve the object, the sheet sticking apparatus of the present invention is a sheet sticking apparatus for sticking an adhesive sheet having an adhesive layer on one surface of a base sheet to an outer peripheral surface of an adherend, And a sheet conveying means for supporting and conveying the drawn adhesive sheet from the other surface side of the base sheet and rolling the adherend in contact with the outer peripheral surface of the adherend And a pressing means that is disposed opposite to the sheet conveying means and sandwiches the adherend between the sheet conveying means and presses the adherend against the adhesive sheet to attach the adhesive sheet. The pressing means moves in the same direction and at the same speed or less with respect to the conveyance direction and conveyance speed of the adhesive sheet by the sheet conveying means, or stops or moves in the opposite direction and at the same speed or less. Having a pressing member for pressing the adherend, it employs a configuration that.

At this time, in the sheet sticking device of the present invention, the sheet conveying means can support the plurality of adhesive sheets fed from the feeding means at a predetermined interval, and the plurality of adhesive sheets are supported by the one adherend. It is preferable that it is configured to be able to be attached to.
In the sheet sticking device of the present invention, the feeding unit is provided to be movable in a direction parallel to the support surface of the adhesive sheet in the sheet conveying unit and perpendicular to the feeding direction of the adhesive sheet in the feeding unit. It is preferable that
Furthermore, in the sheet sticking device of the present invention, it is preferable that the pressing unit is supported so as to be movable along a direction facing the sheet conveying unit.

On the other hand, the sheet sticking method of the present invention is a sheet sticking method for sticking an adhesive sheet having an adhesive layer on one surface of a base sheet to an outer peripheral surface of an adherend, and the adhesive sheet is fed out and fed out. The adhesive sheet is supported and conveyed by the sheet conveying means from the other surface side of the base sheet, and the adherend is rolled by bringing the sheet conveying means into contact with the outer peripheral surface of the adherend, The pressing means disposed opposite to the sheet conveying means presses the adherend between the sheet conveying means and presses against the conveying direction and conveying speed of the adhesive sheet by the sheet conveying means. The adhesive sheet is affixed to the adherend by moving the means in the same direction and at the same speed or less, or by stopping the means, or moving in the opposite direction and at the same speed or less.
At this time, in the sheet sticking method of the present invention, it is preferable that a plurality of adhesive sheets are supported at a predetermined interval by the sheet conveying means, and the plurality of adhesive sheets are stuck on one adherend.

According to the present invention as described above, when the adherend is stuck by rotating the adherend between the sheet conveying means and the pressing means, the pressing member is applied to the conveying direction and the conveying speed of the adhesive sheet by the sheet conveying means. By moving the at an appropriate direction and speed, it is possible to control both the rotational speed at which the adherend is rolled and the transport speed at which the adherend is transported. Thereby, according to the circumference of the adherend or the label length to be attached, the total length of the sheet conveying means and the pressing means can be set without being set long, and the apparatus structure can be simplified and miniaturized. it can. Also, when the length of the adhesive sheet is short, processing is performed because the adherend is immediately transported to the post-process side and the next adherend is received without wasting time by rotating the adherend unnecessarily. Ability can be increased.
Furthermore, since the conveying speed of the adhesive sheet by the sheet conveying means and the moving direction and moving speed of the pressing member can be set as appropriate, the conditions for applying the adhesive sheet to the adherend can be arbitrarily changed, and the adhesive sheet It is possible to easily cope with the pasting of a plurality of adhesive sheets without preparing a supply device or a support device for each number of pasted sheets. Therefore, the structure of the whole sheet sticking apparatus can be simplified and miniaturized to reduce the apparatus cost and the installation cost.

  Further, in the sheet sticking apparatus, if the feeding means is provided so as to be movable parallel to the support surface of the adhesive sheet in the sheet conveying means and perpendicular to the feeding direction, the sticking position is appropriately changed for each of the plurality of adhesive sheets. Can be affixed to the body. Furthermore, if the pressing means is provided so as to be movable along the direction facing the sheet conveying means, even if the circumference of the adherend is changed, it can be handled without difficulty. Further, even when the circumference of the adherend is changed, the relationship between the rotation speed of the adherend and the conveyance speed can be obtained by appropriately setting the moving direction and speed of the pressing member as described above. It can be adjusted as appropriate, and the adhesive sheet can be stuck at a predetermined sticking position during an arbitrary conveyance distance. Therefore, even if the adherend has a large circumference, it is not necessary to greatly increase the transport distance, and the sheet sticking apparatus can be further downsized.

The top view of the sheet sticking apparatus which concerns on one Embodiment of this invention. FIG. 2 is a partial cross-sectional view of the sheet sticking apparatus of FIG. The B arrow partial sectional view of the sheet sticking apparatus of FIG. Operation | movement explanatory drawing of the sheet sticking apparatus of FIG. The other operation | movement explanatory drawing of the sheet sticking apparatus of FIG. The other operation | movement explanatory drawing of the sheet sticking apparatus of FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The sheet sticking apparatus 1 of this embodiment sticks the adhesive sheet S to the outer peripheral surface W1 of the workpiece W as an adherend. Here, the workpiece | work W can illustrate what has a cylindrical trunk | drum like containers, such as a bottle, a can, and a PET bottle. In addition, the adhesive sheet S has an adhesive layer laminated on one surface of the base sheet, and is pre-cut into an outer shape of a predetermined size, and is previously provided as a raw fabric R temporarily attached to the strip-shaped release sheet RL. Have been prepared.

  1 to 3, the sheet sticking apparatus 1 includes a feeding unit 3 that feeds the adhesive sheet S, a sheet transport unit 4 that supports and transports the fed adhesive sheet S from the other surface side of the base sheet, A pressing means 5 that opposes and pushes a workpiece W between the sheet conveying means 4 and the sheet conveying means 4, and a displacing means 6 that supports the feeding means 3 movably in a direction orthogonal to the paper surface in FIG. And is arranged so as to surround the belt conveyor 2 as a conveying means for conveying the workpiece W.

  The belt conveyor 2 is provided to extend left and right in FIGS. 1 and 2 and includes an endless belt 21 that is rotationally driven by a drive pulley 22 (see FIG. 3). While being conveyed from the right side) to the sheet sticking apparatus 1 side, the workpiece W to which the adhesive sheet S is stuck is conveyed to the subsequent step (left side in FIG. 1).

  The feeding means 3 has a frame 31 supported by the displacing means 6 and a peel plate 32 extending from the frame 31 to the sheet conveying means 4 side. The raw material R is wound around the frame 31 in a roll shape. A support roller 33 for supporting, two guide rollers 34 and 35 for guiding the release sheet RL and the adhesive sheet S, a drive roller 36 driven by a motor 36A, and a pinch that sandwiches the release sheet RL between the drive rollers 36. A roller 37 and a collection roller 38 that collects the release sheet RL by driving a motor 38A are provided. The peel plate 32 folds the release sheet RL wound around the guide roller 35 toward the drive roller 36, thereby peeling the adhesive sheet S from the release sheet RL and feeding it toward the sheet conveying means 4. Yes.

  The sheet conveying means 4 includes an upper and lower frame 41, three pulleys 42, 43, 44 supported between the frames 41, and an endless suction belt 45 wound around these pulleys 42, 43, 44. And a suction chamber 46 located between the pulleys 42 and 43 inside the suction belt 45, and a drive motor 47 that is fixed to the upper frame 41 and rotationally drives the pulley 44. The suction belt 45 is composed of a porous and elastic band-like member, and is driven to rotate clockwise in FIG. 1 by the rotation of the pulley 44 driven by the drive motor 47. Further, when the suction chamber 46 sucks air through the suction belt 45, a suction force is generated on the surface of the suction belt 45 opposite to the suction chamber 46, and a support surface 45A for sucking and supporting the adhesive sheet S is formed. It is like that. As a result, the adhesive sheet S fed from the feeding means 3 is supported on the support surface 45A, and is conveyed from the pulley 42 side toward the pulley 43 side as the suction belt 45 rotates.

  The pressing means 5 includes a frame 51, two pulleys 52 and 53 supported by the frame 51, an endless pressing belt (pressing member) 54 wound around the pulleys 52 and 53, and the frame 51. A drive motor 55 that is fixed and rotationally drives the pulley 53, and a linear motion motor 57 that can be position-controlled to move the slider 56 to which the frame 51 is fixed in the left-right direction in FIG. In addition, although the part shown by the dashed-two dotted line in FIG. 3 is drawn shifting upward for easy illustration, it does not shift | deviate vertically. The pressing belt 54 is composed of a belt-like member having elasticity, and is provided so as to be driven to rotate counterclockwise or clockwise in FIG. 1 by the rotation of a pulley 53 driven by a driving motor 55. Further, the pressing belt 54 between the pulleys 52 and 53 is disposed in parallel to the suction belt 45 between the pulleys 43 and 44 in the sheet conveying unit 4, and the workpiece W sandwiched between the suction belt 45 and the workpiece W is sandwiched between the pulleys 52 and 53. A pressure is applied toward the suction belt 45.

  The displacement means 6 includes a linear motion motor 62 that can move a slider 61 to which the frame 31 is fixed in a direction orthogonal to the paper surface in FIG. Accordingly, the feeding unit 3 is provided so as to be movable in a direction parallel to the support surface of the adhesive sheet S in the sheet conveying unit 4 and perpendicular to the feeding direction of the adhesive sheet S in the feeding unit 3.

  In the sheet conveying means 4 and the pressing means 5 described above, the suction belt 45 and the pressing belt 54 are provided in parallel to each other, and a speed difference can be set in each facing portion that sandwiches the workpiece W. Specifically, the facing portion of the suction belt 45 is driven at a speed V1 in the conveyance direction of the workpiece W facing leftward in FIG. On the other hand, the pressing belt 54 stops as shown in FIG. 4 (speed V2 = 0) or, as shown in FIG. 5, the facing portion of the pressing belt 54 is equal to or lower than the speed V1 in the same direction as the speed V1. It can be driven in either state of moving at a speed V2 or moving at a speed V2 equal to or lower than the speed V1 in the direction opposite to the speed V1 as shown in FIG. Thus, due to the speed difference (ΔV) between the speed V1 of the suction belt 45 and the speed V2 of the pressing belt 54, the workpiece W rotates counterclockwise and the adhesive sheet S is adhered to the outer peripheral surface W1 while being conveyed. It will be conveyed toward. 4 to 6 show the workpiece W having three cylindrical cross sections having different peripheral lengths, the cross sectional shape of the workpiece W is not particularly limited, and the elliptical cylindrical cross section or polygon having the same peripheral length is shown. Even in the case of a columnar cross section, the conveyance state is substantially the same. 4 to 6, the adhesive sheet S is omitted for easy understanding of the conveyance state of the workpiece W, but the adhesive sheet S is placed at an appropriate position of the suction belt 45 according to the movement of the workpiece W. What is necessary is just to support, and if the some adhesive sheet S is supported by a suitable space | interval, the adhesive sheet S can be stuck to a predetermined sticking position by rolling of the workpiece | work W. FIG.

In the sheet sticking apparatus 1 described above, as a procedure for sticking the adhesive sheet S to the outer peripheral surface W1 of the workpiece W, the sheet conveying means 4 rotates the suction belt 45 with the drive motor 47 and the pressing means 5 with the drive motor 55. The pressure belt 54 is rotated, and the suction belt 45 and the pressure belt 54 are driven at speeds V1 and V2 appropriately set according to the circumference of the workpiece W. Moreover, the belt conveyor 2 conveys the workpiece | work W sent at predetermined intervals by the workpiece | work supply means etc. which are not shown in figure with a predetermined | prescribed conveyance speed.
When the workpiece W is conveyed by the belt conveyor 2, the workpiece W is detected by a sensor (not shown), and the feeding means 3 drives the drive roller 36 and the motor 38A to wind up the release sheet RL, thereby causing the adhesive sheet S to be wound. Is fed toward the sheet conveying means 4. At this time, the feeding means 3 feeds the adhesive sheet S at a speed V1 that is the same as the driving speed set for the suction belt 45. Further, as shown in FIG. 2, the displacing means 6 drives the linear motion motor 62 to move the feeding means 3 up and down, and delivers the adhesive sheet S to the sheet conveying means 4 at a preset height. In the present embodiment, two adhesive sheets S are attached to one work W.

  The sheet conveying means 4 sucks the two adhesive sheets S fed from the feeding means 3 from the back side of the suction belt 45 by the suction chamber 46, supports the adhesive sheets S on the support surface 45A, and supports the supported suction belt. These adhesive sheets S are conveyed by the rotation of 45. The workpiece W is sandwiched between the suction belt 45 and the pressing belt 54 slightly earlier than the first adhesive sheet S conveyed by the suction belt 45, and the first adhesive sheet S is conveyed there. When it comes, the tip of the first adhesive sheet S is stuck on the outer peripheral surface W1 of the workpiece W. Subsequently, the workpiece W is rotated by the speed difference (ΔV) between the suction belt 45 and the pressing belt 54, and the entire first adhesive sheet S is sequentially attached to the outer peripheral surface W1 of the rotating workpiece W. Even after the first adhesive sheet S is stuck, the sheet conveying means 4 and the pressing means 5 continue to rotate and convey the workpiece W, and the second adhesive sheet S supported by the suction belt 45 is also stuck to the outer peripheral surface W1. To do. The workpiece W to which the second adhesive sheet S is stuck passes through between the suction belt 45 and the pressing belt 54 and is conveyed to the subsequent process by the belt conveyor 2.

  Further, in the sheet sticking apparatus 1, as a procedure for sticking the adhesive sheet S by changing the size of the work W, first, as shown in FIG. The distance between the suction belt 45 and the pressing belt 54 is changed. Next, the suction belt 45 and the pressing belt 54 are driven at speeds V1 and V2 appropriately set according to the circumference of the workpiece W. The speeds V1 and V2 of the suction belt 45 and the pressing belt 54 according to the circumference of the workpiece W are set in any of a plurality of sizes of workpieces W having different circumferences, for example, as shown in FIGS. Even if it exists, it is possible to set the conveyance distance L of the workpiece W to be constant.

First, as shown in FIG. 4, when the circumferential length of the workpiece W is equal to the center distance L between the pulleys 42 and 43 and the pulleys 52 and 53, the pressing belt 54 is stopped and the speed V2 is set to zero.
As shown in FIG. 5, the suction belt 45 is applied to the case where the adhesive sheet S can be pasted without making the work W make one turn, or to the work W whose peripheral length of the work W is not more than the center distance L. By setting the speed V2 so that the pressing belt 54 moves in the same direction as the speed V1 or less, the work W can be rotated unnecessarily and conveyed to the subsequent process without spending time. it can.
Further, as shown in FIG. 6, when the adhesive sheet S is pasted by rotating it one or more times with respect to the workpiece W, or when the workpiece W has a circumferential length of the center distance L or more, the suction belt By setting the speed V2 so that the pressing belt 54 moves in the direction opposite to 45 at a speed V1 or less, the rotational speed of the workpiece W can be increased to attach the adhesive sheet S. Here, when the speed V2 is set at the same speed as the speed V1 in the direction opposite to the suction belt 45, the workpiece W is only conveyed in a rotating direction without being conveyed in the post-process direction. can do.
For a plurality of workpieces W having different circumferential lengths as described above, the workpieces W can be rotated at a constant movement distance L by appropriately setting the speeds V1 and V2 of the suction belt 45 and the pressing belt 54. . Accordingly, if the feeding interval of the feeding means 3 is set so that an appropriate number of adhesive sheets S are adhered to the outer circumferential surface W1 during one rotation of the workpiece W, a plurality of sheets are bonded to the outer circumferential surface W1 of one workpiece W. The sheet S can be attached at an appropriate position and interval.

According to this embodiment as described above, the following effects are obtained.
That is, by appropriately setting the speed V1 of the suction belt 45 in the sheet conveying unit 4 and the speed V2 of the pressing belt 54 in the pressing unit 5, the number of rotations and the conveyance distance of the rotated workpiece W are easily controlled. The number of adhesive sheets S to be attached to one workpiece W can be arbitrarily set. Accordingly, it is possible to easily cope with the pasting of a plurality of adhesive sheets S without preparing the feeding means 3 for each number of pasted sheets, and the overall structure of the sheet pasting apparatus 1 is simplified and miniaturized to reduce the apparatus cost and installation cost. Can be reduced. Furthermore, it is possible to easily cope with the size change of the workpiece W, and even if the circumference of the workpiece W becomes long, the conveyance distance can be suppressed, and the sheet sticking apparatus 1 can be further downsized. it can.

  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. That is, the invention has been illustrated and described with particular reference to certain specific embodiments, but without departing from the spirit and scope of the invention, Various modifications can be made by those skilled in the art in terms of material, quantity, and other detailed configurations. In addition, the description of the shape, material, and the like disclosed above is exemplary for ease of understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such restrictions is included in this invention.

  For example, in the above-described embodiment, the workpiece W that is an adherend is exemplified as a workpiece having a cylindrical body. However, the adherend has substantially the same cross section that is hollow or solid in the axial direction. Any suitable object capable of holding a predetermined shape may be used, such as a columnar shape having a large slenderness ratio in the axial direction, a plate shape having a small slenderness ratio, and a slenderness ratio of approximately 1. The cross-sectional shape that forms the outer peripheral surface of the adherend is not limited to a circle, ellipse, or polygon, but a combination of a straight line and a curve, or a column with a cross-section polygon (triangular, quadrangular, pentagonal ... ) Shape, that is, a cross-sectional shape that protrudes radially outward, has no corners that are extremely acute, and can be applied to the entire surface of the adhesive sheet S continuously. Good. That is, when the outer peripheral surface is formed with an extreme acute angle, when the adherend is rolled, the adhesive sheet S is not properly applied due to slipping or jumping at the acute angle part, Since the adherend is not conveyed smoothly, the attachment position of the adhesive sheet S may be shifted. Therefore, it is only necessary to have a uniform outer peripheral surface that does not cause such a problem.

Moreover, although the said embodiment illustrated what supplies the said adhesive sheet S from the raw fabric R by which the several adhesive sheet S was temporarily attached to the peeling sheet RL as the delivery means 3, it is not restricted to this, Single sheet | seat The adhesive sheet S may be supplied. Further, the number of original fabrics R included in the feeding means 3 is not limited to one, and a plurality of types of adhesive sheets S may be supplied from a plurality of original fabrics R. Further, a plurality of types of adhesive sheets S may be temporarily attached in a suitable order to one release sheet RL of the original fabric R.
In the above embodiment, the feeding means 3 is moved by the displacing means 6 so as to change the attaching position of the adhesive sheet S. However, the present invention is not limited thereto, and the sheet conveying means 4 is movably supported. Then, the sticking position of the adhesive sheet S may be changed, or the sticking position may be changed by moving the adherend that is being rolled by the sheet conveying means 4 and the pressing means 5.
Further, a plurality of adhesive sheets S may be attached in the up and down direction in FIG.

DESCRIPTION OF SYMBOLS 1 Sheet sticking apparatus 3 Feeding means 4 Sheet conveying means 5 Pressing means 45A Support surface 54 Pressing belt (pressing member)
S Adhesive sheet W Workpiece (Substrate)
W1 outer peripheral surface

Claims (6)

A sheet sticking device for sticking an adhesive sheet having an adhesive layer on one surface of a base sheet to an outer peripheral surface of an adherend,
A feeding means for feeding out the adhesive sheet;
A sheet conveying means that supports and conveys the fed adhesive sheet from the other surface side of the base sheet, and abuts on the outer peripheral surface of the adherend to roll the adherend;
A pressing unit disposed opposite to the sheet conveying unit and sandwiching the adherend between the sheet conveying unit and pressing the adherend to the adhesive sheet to attach the adhesive sheet;
The pressing means moves in the same direction and at the same speed or less with respect to the conveyance direction and speed of the adhesive sheet by the sheet conveying means, stops, or moves in the opposite direction and at the same speed or less. A sheet sticking device comprising a pressing member for pressing a body.   The sheet conveying means is configured to be capable of supporting a plurality of adhesive sheets fed from the feeding means at a predetermined interval, and configured to be capable of sticking the plurality of adhesive sheets to one adherend. The sheet sticking apparatus according to claim 1.   The feeding means is provided so as to be movable in a direction parallel to a support surface of the adhesive sheet in the sheet conveying means and perpendicular to a feeding direction of the adhesive sheet in the feeding means. The sheet sticking apparatus according to claim 1 or 2.   The sheet pressing device according to any one of claims 1 to 3, wherein the pressing unit is supported so as to be movable along a direction facing the sheet conveying unit. A sheet sticking method for sticking an adhesive sheet having an adhesive layer on one surface of a substrate sheet to an outer peripheral surface of an adherend,
Paying out the adhesive sheet,
The fed adhesive sheet is supported and conveyed by the sheet conveying means from the other surface side of the base sheet, and the adherend is rolled by bringing the sheet conveying means into contact with the outer peripheral surface of the adherend. Let
The pressing means disposed opposite to the sheet conveying means presses the adherend between the sheet conveying means and presses against the conveying direction and conveying speed of the adhesive sheet by the sheet conveying means. A sheet sticking method comprising sticking the adhesive sheet to the adherend by moving the means in the same direction and at the same speed or less, or stopping the means, or moving in the opposite direction and at the same speed or less.   6. The sheet sticking method according to claim 5, wherein the sheet conveying means supports a plurality of adhesive sheets at a predetermined interval, and affixes the plurality of adhesive sheets to one adherend.

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