JP2015205723A - Sheet pasting device and sheet pasting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pasting device and a sheet pasting method capable of pasting an adhesive sheet to an object by preventing breakage, deformation, or the like of the adhesive sheet and the object, in a simple configuration.SOLUTION: A holding means 40 includes a magnetizing means 42 which has magnetic property for holding by magnetizing an adhesive sheet AS that has magnetic property. A pressurizing means 50 includes a polarity changing means capable of changing, entirely or partially, polarity of the magnetizing means 42 relative to the polarity of the adhesive sheet AS held by the holding means 40. An image formation means 30 can form an image GA having magnetic property on the adhesive sheet AS that is delivered by a delivery means 20.

Description

  The present invention relates to a sheet sticking apparatus and a sheet sticking method.

  Patent Document 1 discloses an automatic sticking label in which an adhesive material layer mixed with magnetically attachable iron powder is provided on the sticking surface side of a label main body. The automatic sticking label of Patent Document 1 is configured to be attracted and held by an electromagnet and stuck to an adherend.

Japanese Patent Publication No. 6-64414

However, in order to apply the automatic sticking label of Patent Document 1 to an adherend, it is necessary to press the automatic sticking label attracted and held by an electromagnet to the adherend. If the adherend is fragile or weak, in order to avoid breakage or deformation of the adherend, air is applied to the automatic paste label in a state in which the self paste label held by the electromagnet is separated from the adherend. The automatic labeling is pressed and pasted onto the adherend with the spraying pressure of the sprayed air. In this case, there is a separate facility for spraying air onto the label for automatic bonding held by an electromagnet. Necessary.
Accordingly, an object of the present invention is to provide a sheet sticking apparatus and a sheet sticking method capable of sticking an adhesive sheet to an adherend while preventing damage or deformation of the adhesive sheet or the adherend with a simple configuration. It is to be.

  In order to solve the above problems, a sheet sticking apparatus according to an aspect of the present invention includes: a feeding unit that feeds an adhesive sheet; a holding unit that holds the fed adhesive sheet; and an adhesive sheet that is held by the holding unit. Pressing means for pressing and adhering to an adherend, and the holding means includes magnetic adhesion means capable of magnetically holding the adhesive sheet having magnetism, and the pressing means includes the There is a polarity changing means capable of changing the polarity of the magnetizing means in whole or in part with respect to the polarity of the adhesive sheet held by the holding means.

  Moreover, you may provide the magnetic layer formation means which forms the magnetic layer which has magnetism in the adhesive sheet extended | stretched by the said delivery means.

  The sheet sticking method according to another aspect of the present invention includes a feeding step of feeding an adhesive sheet, a holding step of holding the fed adhesive sheet, and pressing the adhesive sheet held in the holding step against an adherend. A pressing step for attaching, and the holding step magnetically adheres and holds the magnetic adhesive sheet with magnetic magnetizing means, and the pressing step includes the polarity of the adhesive sheet held in the holding step. In contrast, a polarity changing means capable of changing the polarity of the magnetizing means in whole or in part is used.

  According to the present invention, the polarity of the adhesion means is changed with respect to the polarity of the adhesion sheet that is magnetically attached and held by the adhesion means, so that the adhesion sheet is pressed against the adherend by the repulsive force of the magnet. Therefore, it is possible to attach the adhesive sheet to the adherend while preventing damage or deformation of the adhesive sheet or the adherend with a simple configuration.

  Further, when the polarity of the magnetizing means can be partially changed, the adhesive sheet can be gradually attached to the adherend while expelling the air between the adhesive sheet and the adherend. The adhesive sheet can be affixed to the adherend without any intervening bubbles.

  Furthermore, when the magnetic layer forming means is provided, even a general-purpose adhesive sheet that does not have magnetism can be held by a holding means that holds the adhesive sheet by the magnetic adhesion means.

The side view of the sheet sticking apparatus concerning embodiment. (A)-(c) is explanatory drawing of a modification.

  Hereinafter, an embodiment of the present invention will be described.

  Note that the X axis, Y axis, and Z axis in the present specification and drawings are orthogonal to each other, the X axis and Y axis are axes in a predetermined plane, and the Z axis is an axis orthogonal to the predetermined plane. To do. Furthermore, in the present embodiment, when viewed from the near side of FIG. 1 parallel to the Y axis, when indicating the direction, “up” is the arrow direction of the Z axis, “down” is the opposite direction, “ “Left” is the arrow direction of the X axis, “Right” is the opposite direction, “Front” is the front direction orthogonal to the page, and “Rear” is the opposite direction of the Y axis arrow direction.

  In FIG. 1, a sheet sticking apparatus 10 according to the present embodiment includes a feeding unit 20 that feeds out an adhesive sheet AS, and a magnetic layer formation that forms an image GA as a magnetic layer having magnetism on the adhesive sheet AS that is fed out by the feeding unit 20. Image forming means 30 as means, holding means 40 for holding the adhesive sheet AS fed out with the image GA formed thereon, and pressing for adhering the adhesive sheet AS held by the holding means 40 to the adherend WK Means 50, a recognition means 60 capable of recognizing the shape of the adhesive sheet AS, an overall operation of the sheet sticking apparatus 10 are provided to be controllable, and a first image forming means 71 and a second image forming means 72 are provided. Control means 70 such as a personal computer and a sequencer, and is composed of a belt conveyor, an articulated robot, etc. Is arranged above the conveying means CV for feeding.

In addition, the magnetism in the present invention is a property having magnetism, that is, a property that retains the property as a magnet even when the influence of magnetism from the outside world is eliminated. Examples of magnetism include ferrite magnets and neodymium. A hard magnetic material such as a magnet can be exemplified.
In addition, the magnetizability in the present invention is a property that is attracted by a magnet without having magnetism, that is, a property that loses the property as a magnet when the influence of magnetism from the outside is lost, and has magnetizability. Can be exemplified by soft magnetic materials such as iron and silicon steel.
Furthermore, the magnetic adhesion in the present invention means that it is attracted (pulled) by a magnetic force.

  The feeding means 20 includes a support roller 21 that supports the original fabric RS in which an adhesive sheet AS in which an adhesive AD layer is laminated on one surface of the base sheet BS is temporarily attached to one surface of the release sheet RL, Drive driven by a plurality of guide rollers 22 for guiding the anti-RS, a peeling plate 23 as a peeling means for folding the release sheet RL and peeling the adhesive sheet AS from the release sheet RL, and a rotation motor 24A as a driving device. A pinch roller 25 that sandwiches the release sheet RL between the roller 24 and a collection roller 26 that is driven by a driving device (not shown) and collects the release sheet RL.

  The image forming unit 30 has magnetism and has a first image GA1 as an image GA formed by a command from the first image forming unit 71, and has magnetism and is formed by a command from the second image forming unit 72. An image forming apparatus 31 capable of forming a second image GA2 as the image GA on the base sheet BS of the adhesive sheet AS is provided.

  The first image GA1 is, for example, an image mainly having a message property, and includes characters, symbols, figures, designs, combinations thereof, and the like, and when the adhesive sheet AS is a delivery slip, a destination address Characters and symbols such as names and names can be exemplified, and when the adhesive sheet AS is a decorative sheet, figures and patterns, and further characters and symbols can be exemplified.

  As shown in FIG. 2, the second image GA2 is an image formed on the base sheet BS in a position that can be magnetized by the holding means 40 at a position that can be magnetized by the holding means 40. Unlike the image GA1, it may or may not have a message property, and any image for holding a sheet for attracting and holding the adhesive sheet AS by the holding means 40 may be used.

  As the image forming apparatus 31, there are various methods such as a thermal printer, an ink jet printer, a dot impact printer, a laser printer, a silver halide photographic printer, various printing plates (letter printing, intaglio printing, planographic printing, screen printing, etc.). Printing (printing) means can be used. In order to make the image GA have magnetism, for example, the ink and toner for forming the image GA may include, for example, powder obtained by pulverizing or singulating a magnetic material. .

  The holding means 40 includes a support plate 41 whose lower surface is a support surface 41A that supports the adhesive sheet AS, and a magnetic member that is provided in the support plate 41 and can magnetically adhere and hold the adhesive sheet AS having magnetism by the image GA. And a permanent magnet 42 such as a ferrite magnet or a neodymium magnet. The permanent magnet 42 is provided so that the S pole MS and the N pole MN overlap with each other in the vertical direction, and can rotate about an axis parallel to the X axis with respect to the support plate 41.

  The pressing means 50 includes a linear motion motor 51 as a drive device that supports the support plate 41 by its output shaft 51A, and a drive device that supports the permanent magnet 42 by an output shaft 53A that can rotate around an axis parallel to the X axis. The rotation motor 53 is provided as a polarity changing means capable of changing the polarity of the permanent magnet 42 as a whole with respect to the polarity of the adhesive sheet AS held by the holding means 40.

  The recognizing unit 60 is arranged on the upstream side in the feed direction of the original fabric RS from the image forming apparatus 31, and is configured by an optical sensor, an imaging unit, or the like that can recognize the shape of the adhesive sheet AS.

  Next, a sheet pasting method using the sheet pasting apparatus 10 will be described.

  First, after the operator sets the original fabric RS as shown in FIG. 1, the adhesive sheet AS on the downstream side in the feed direction of the original fabric RS from the recognition means 60 is released from the release sheet RL, and an operation panel (not shown) When an operation start signal is input via an input means such as a personal computer or the like, the feeding means 20 drives the rotation motor 24A and a driving device (not shown) to feed out the original fabric RS. When the original fabric RS is fed, the shape of the adhesive sheet AS is recognized by the recognizing means 60, and the leading adhesive sheet AS recognized by the recognizing means 60 is a predetermined position on the peeling plate 23 (the tip of the adhesive sheet AS is When detecting means (not shown) such as an optical sensor or an imaging means detects that the image forming apparatus 31 has reached the upstream side of the original RS from the position where the image is to be formed, the feeding means 20 turns the rotation motor 24A and Driving of a driving device (not shown) is stopped, and the feeding unit 20 enters a standby state.

  When the conveying means CV disposes the adherend WK just below the support plate 41 and stops, the pressing means 50 drives the rotation motor 53, and the permanent magnet 42 is moved to the initial position where the S pole MS is below. At the same time, the feeding means 20 drives the rotation motor 24A and a driving device (not shown) to feed out the original fabric RS (feeding process). Then, when the first image forming unit 71 instructs the image forming unit 30, the image forming unit 30 drives the image forming apparatus 31 to synchronize with the feeding of the adhesive sheet AS, and on the base sheet BS. At a predetermined position, a first image GA1 having an N pole GAN on the upper surface side and an S pole GAS on the lower side is formed. The adhesive sheet AS on which the first image GA1 is formed by the image forming apparatus 31 is peeled off by the peeling plate 23, and the first image GA1 is magnetically attached to the support surface 41A of the support plate 41 at the initial position indicated by the solid line in FIG. When the detecting means (not shown) detects that the next adhesive sheet AS has reached a predetermined position on the peeling plate 23, the feeding means 20 drives the rotation motor 24A and a driving device (not shown). Is stopped and the feeding means 20 is again in the standby state. At this time, the first image GA1 is also formed on the next adhesive sheet AS in the same manner as described above.

  Next, the pressing means 50 drives the linear motor 51 to lower the support plate 41 to a position at a predetermined distance above the adherend WK, as shown by a two-dot chain line in FIG. 53 is driven to rotate the permanent magnet 42 by 180 degrees to change the polarity of the permanent magnet 42 with respect to the polarity of the adhesive sheet AS. Thereby, the N pole MN of the permanent magnet 42 is positioned below, the N pole MN of the permanent magnet 42 and the N pole GAN on the upper surface side of the first image GA1 repel each other, and the adhesive sheet AS is separated from the support surface 41A. Then, it is pressed and stuck to the adherend WK (pressing step). Thereafter, the pressing means 50 drives the linear motion motor 51 and the rotation motor 53 to return the support plate 41 and the permanent magnet 42 to the initial positions. And the conveyance means CV conveys the to-be-adhered body WK with which adhesive sheet AS was stuck to the apparatus of the following process, etc., and the same operation | movement is repeated after that.

  Here, for example, when the base sheet BS of the adhesive sheet AS is preliminarily provided with characters, symbols, figures, pictures, or the like, or if necessary, a non-character or no-print adhesive sheet AS is attached to the adherend WK. In the case of pasting, the first image forming unit 71 does not give a command to the image forming unit 30. Therefore, the adhesive sheet AS on which the first image GA1 is not formed is not held by the holding unit 40. Thus, when the original image RS is fed out, there is no command from the first image forming unit 71, or when there is no command from the first image forming unit 71 and the original fabric RS is fed out, the second image forming unit 72 performs image processing. By instructing the forming unit 30, the image forming unit 30 drives the image forming apparatus 31, and forms the second image GA2 at a predetermined position on the base sheet BS in synchronization with the feeding of the adhesive sheet AS. . The adhesive sheet AS on which the second image GA2 is formed is held by the second image GA1 being magnetized and held on the support surface 41A in the holding step described above, and undergoes the same steps as described above. The formation of the first and second images GA1 and GA2 on the adhesive sheet AS can be performed at a predetermined position at a predetermined timing based on the recognition result of the adhesive sheet AS by the recognition unit 60.

  According to the present embodiment as described above, the repulsive force of the magnet is obtained by changing the polarity of the permanent magnet 42 with respect to the polarity of the adhesive sheet AS held magnetically by the permanent magnet 42 (the polarity of the image GA). Since the adhesive sheet AS can be pressed and pasted on the adherend WK with a simple configuration, the adhesive sheet AS and the adherend WK can be prevented from being damaged or deformed, and the adhesive sheet AS can be attached to the adherend WK. It becomes possible to affix to.

  When the image forming unit 30 is provided, even a general-purpose adhesive sheet AS having no magnetism can be held by the holding unit 40 that holds the adhesive sheet AS with the permanent magnet 42.

  Note that the means and steps in the present invention are not limited in any way as long as the operations, functions, or steps described for the means and steps can be performed, and moreover, the configuration of the simple embodiment shown in the above embodiment. It is not limited at all to a thing or a process. For example, as long as the feeding means can feed the adhesive sheet AS, the feeding means is not limited within the scope in light of the technical common sense at the beginning of the application (the description of the other means is omitted). ).

  Further, the second image forming unit 72 can issue a command to the image forming unit 30 even when there is a command from the first image forming unit 71. That is, for example, when the first image GA1 is formed in a part of the surface on the adhesive sheet AS, or when the area occupied by the first image GA1 is too small compared to the weight and area of the adhesive sheet AS. In such a case, when the adhesive sheet AS is held by the support plate 41, a part of the adhesive sheet AS hangs down or the adhesive sheet AS drops from the support plate 41. . Therefore, by forming the second image GA2 in addition to the first image GA1, the entire adhesive sheet AS can be reliably held by the support plate 41. The second image GA2 may be formed in a part where the first image GA1 is not formed, may be formed in a part where the first image GA1 is formed, or formed in both parts. May be.

  Furthermore, the magnetizing means may use an electromagnet 42A instead of the permanent magnet 42, as shown in FIG. In this case, the pressing means 50 includes current direction changing means 55 as polarity changing means capable of reversing the current direction of the electromagnet 42A. Also in this case, the pressing means 50 drives the current direction changing means 55 with respect to the adhesive sheet AS whose upper surface side of the image GA is the N pole GAN, and the lower side of the electromagnet 42A is the S pole MS and the adhesive sheet AS is the support plate. 41 is supported. Then, the pressing unit 50 drives the current direction changing unit 55 to reverse the current direction to reverse the S pole MS and the N pole MN of the electromagnet 42A. Thereby, the lower side of the electromagnet 42A becomes the N pole MN, the N pole MN of the electromagnet 42A and the N pole GAN on the upper surface side of the first image GA1 repel each other, and the adhesive sheet AS is separated from the support surface 41A and covered. Affixed to the body WK.

Moreover, the pressing means 50 is good also as changing partially the polarity of a permanent magnet or an electromagnet with respect to the adhesive sheet AS. When the pressing means 50 includes an electromagnet, as shown in FIGS. 2B and 2C, the magnetizing means is composed of a plurality of electromagnets 42B, and each electromagnet 42B is individually energized by the current direction changing means 55. The current direction of the individual electromagnets 42B can be reversed. In this case, the pressing means 50 drives the current direction changing means 55, and the adhesive sheet AS is supported by the support plate 41 with the lower side of all the electromagnets 42 </ b> A as the S pole MS. Then, the pressing means 50 drives the current direction changing means 55 to reverse the current direction of each electromagnet 42B with a time difference, as shown in FIG. 2B, from the right side to the left side of the adhesive sheet AS (left side). (It may be from the front side to the right side or from the near side to the back side.) The S pole MS and the N pole MN of the electromagnet 42A are gradually reversed, or as shown in FIG. The S pole MS and the N pole MN of the electromagnet 42A can be gradually reversed from the central portion toward the left and right ends (may be directed toward both front and back ends or in the radial direction). . Accordingly, the adhesive sheet AS can be gradually attached to the adherend WK while expelling the air between the adhesive sheet AS and the adherend WK, and there is no air bubble between them. Can be affixed to the adherend WK.
Even when the pressing means 50 includes a plurality of permanent magnets, a plurality of rotating motors as polarity changing means for rotating the individual permanent magnets 180 degrees may be employed so that the same operation as described above can be performed. .

Further, in the example of FIGS. 1 and 2, the permanent magnet 42, the rotation motor 53, and the electromagnet 42A may be singular or plural.
Further, the pressing means 50 does not include the linear motion motor 51, and separates the adhesive sheet AS from the support surface 41A from the position where the adhesive sheet AS fed from the feeding means 20 is supported by the support plate 41. You may stick on WK.

  Furthermore, a permanent magnet that forms an image GA on the adhesive sheet AS with an ink and toner containing a magnetic material that excludes magnetic materials by the image forming apparatus 31, and magnetizes the magnetic material. You may provide the magnetic force provision means 80 as magnetic layer formation means, such as an electromagnet, a magnetizing yoke, and a magnetizing coil. The magnetic force applying means 80 may be configured to further magnetize the image GA formed of ink or toner containing a magnetic material.

  Moreover, you may provide magnetic removal means, such as the resonance attenuation | damping demagnetizer which removes the magnetism of the image GA stuck to the to-be-adhered body WK, a thermal demagnetizer, and an alternating current demagnetizer. In this case, it is possible to prevent the magnetism of the image GA from having any adverse effect on the adherend WK or other devices.

Further, the peeling means may be constituted by a roller instead of the peeling plate 23.
Further, the arrangement position of the recognition unit 60 may be anywhere as long as it is upstream of the image forming unit 30 in the feed direction of the original fabric RS.
Further, the image forming unit 30 may form the image GA without providing the recognition unit 60 and based on the recognition result of the recognition unit 60.
Moreover, you may perform the sticking operation | movement of the adhesive sheet AS similar to the above, moving the to-be-adhered body WK.
Further, the magnetic layer forming means may be one in which a magnetic material such as an adhesive sheet, a double-sided adhesive sheet, or an adhesive is laminated or adhered, or can be magnetized by the magnetic force applying means 80. You may be comprised including what laminates | stacks or adheres (magnetic layer).
Further, the adhesive sheet AS may include those having magnetism in the base sheet BS and the adhesive AD layer, and those that can be magnetized by the magnetic force applying means 80. In this case, there is no magnetic layer forming means. May be.

Further, when the adherend WK is transported by another apparatus, the transport means CV is not necessary in the present invention, and other components that are not described in the independent claims of the present invention are necessary. It suffices to adopt it depending on the situation.
Further, in the present invention, the control means 70 may or may not be provided. If not, the control means 70 is controlled by a control means such as a higher-order personal computer or sequencer that also controls peripheral devices including the sheet sticking apparatus 10 of the present invention. can do.
In the above description, the N pole and the S pole may be reversed.

  Further, the material, type, shape, and the like of the adhesive sheet AS and the adherend WK in the present invention are not particularly limited. For example, the adhesive sheet AS is not limited to adhesive forms such as pressure-sensitive adhesiveness and heat-sensitive adhesiveness, and when a heat-sensitive adhesive is employed, an appropriate coil heater that heats the adhesive sheet AS. A heating means such as a heat pipe may be provided. Such an adhesive sheet AS is, for example, a single layer having only an adhesive AD layer, an adhesive layer having an intermediate layer between the base sheet BS and the adhesive AD layer, and a cover on the upper surface of the base sheet BS. It may be a layer having three or more layers, such as a so-called double-sided adhesive sheet that can peel the base sheet BS from the adhesive AD layer. Alternatively, it may have a multilayer intermediate layer, or may be a single layer or multilayer without an intermediate layer. Examples of the adherend WK include foods, resin containers, semiconductor wafers such as silicon semiconductor wafers and compound semiconductor wafers, information recording substrates such as circuit boards and optical disks, glass plates, steel plates, ceramics, wood plates, resin plates, and the like. Any form of member or article can also be targeted. In addition, the adhesive sheet AS is replaced with a functional and intended reading, for example, any information label, decorative label, protective sheet, dicing tape, die attach film, die bonding tape, recording layer forming resin sheet, etc. Any sheet, film, tape, or the like having a shape can be attached to any adherend WK as described above.

  In addition, 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 above embodiment).

DESCRIPTION OF SYMBOLS 10 Sheet sticking apparatus 20 Feeding means 30 Image formation means (magnetic layer formation means)
40 Holding means 42 Permanent magnet (Magnetic attachment means)
42A, 42B Electromagnet (Magnetization means)
50 Pressing means 53 Rotating motor (polarity changing means)
55 Current direction changing means (polarity changing means)
80 Magnetic force applying means (magnetic layer forming means)
AS adhesive sheet GA image (magnetic layer)
WK adherend

Claims (3)

A feeding means for feeding out the adhesive sheet;
Holding means for holding the extended adhesive sheet;
A pressing unit that presses and adheres the adhesive sheet held by the holding unit to the adherend,
The holding means includes magnetizing means having magnetism capable of magnetizing and holding the adhesive sheet having magnetism,
2. The sheet according to claim 1, wherein the pressing unit includes a polarity changing unit capable of changing the polarity of the magnetic adhesion unit in whole or in part with respect to the polarity of the adhesive sheet held by the holding unit. Pasting device.   2. The sheet sticking apparatus according to claim 1, further comprising magnetic layer forming means for forming a magnetic layer having magnetism on the adhesive sheet fed by the feeding means. A feeding process for feeding out the adhesive sheet;
Holding step for holding the extended adhesive sheet;
A pressing step of pressing and adhering the adhesive sheet held in the holding step to the adherend,
In the holding step, the adhesive sheet having magnetism is magnetized and held by a magnetizing means having magnetism,
The sheet pressing method according to claim 1, wherein the pressing step uses a polarity changing means capable of changing the polarity of the magnetizing means in whole or in part with respect to the polarity of the adhesive sheet held in the holding step.

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