JP2021017331A - Tension application device and tension application method - Google Patents

Abstract

To provide a tension application device capable of applying a predetermined tension to a long body by preventing peripheral equipment from having a large scale, and a tension application method.SOLUTION: A tension application device comprises: abutting means 50 for abutting on a long body RT and applying a predetermined tension to the long body RL by self-weight; movement permission means 60 for permitting free movement of the abutting means 50 to the side in one direction along a predetermined locus MD and the side in a direction opposite to it; and displacement means 70 capable of changing an inclination θ of the movement permission means 60 with respect to a gravity direction and changing the tension applied to the long body RL.SELECTED DRAWING: Figure 1

Description

The present invention relates to a tension applying device and a tension applying method.

A tension applying device that applies a predetermined tension to a long body is known (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2013-28470

However, in the conventional tension applying device as described in Patent Document 1, the pressure of the air supplied to the air cylinder 11 is controlled, and the seat body 102 (long length) is controlled via the dancer rolls 6 and 16 (contact means). Since it is configured to apply a predetermined tension to the body), a compressed air supply device that supplies compressed air to the air cylinder 11, a pressure control device that controls the pressure of the compressed air supplied to the air cylinder 11, and further, they There is an inconvenience that peripheral equipment such as power supply equipment that supplies power to the vehicle becomes large-scale.

An object of the present invention is to provide a tension applying device and a tension applying method capable of applying a predetermined tension to a long body by preventing the peripheral device from becoming large-scale.

The present invention has adopted the configuration described in the claims.

According to the present invention, since the inclination of the movement permitting means with respect to the direction of gravity is changed and the tension applied to the long body is changed, it is possible to prevent the peripheral device from becoming large and apply a predetermined tension to the long body. Can be granted.
Further, if the inclination of the movement allowing means is changed based on the detection result of the tension detecting means, the tension of the long body can be easily changed.

The explanatory view of the sheet sticking apparatus which adopted the tension applying apparatus which concerns on embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The X-axis, Y-axis, and Z-axis in the present embodiment are orthogonal to each other, the X-axis and the Y-axis are axes in a predetermined plane, and the Z-axis is an axis orthogonal to the predetermined plane. To do. Further, in the present embodiment, based on the case of viewing from the front direction in FIG. 1 parallel to the Y axis, when the direction is shown without specifying the figure, "up" is "down" in the direction of the arrow on the Z axis. Is the opposite direction, "left" is the arrow direction of the X axis, "right" is the opposite direction, "front" is the middle front direction parallel to the Y axis, and "rear" is the opposite direction.

The sheet attaching device EA1 adopting the tension applying device EA of the present invention is peeled by a support means 10 for supporting the original fabric RS on which the adhesive sheet AS is temporarily attached to the peeling sheet RL as a long body, and a peeling edge 20A. A release plate 20 as a release means for folding back the sheet RL and peeling the adhesive sheet AS from the release sheet RL, a pressing roller 30 as a pressing means for pressing and attaching the adhesive sheet AS to the adherend WK, and a release sheet. The sheet sticking device EA1 is provided with a carry-out giving means 40 for giving a carry-out output to the RL, a tension applying device EA for giving a predetermined tension to the peeling sheet RL, and a collecting means 80 for collecting the peeling sheet RL. It is arranged above the moving means 90 that relatively moves the adherend WK.

The support means 10 includes a support roller 11 for supporting the original fabric RS and a guide roller 12 for guiding the original fabric RS.

The carry-out power imparting means 40 includes a drive roller 42 supported by the output shaft 41A of the rotation motor 41 as a drive device, and a pinch roller 43 that sandwiches the release sheet RL between the drive rollers 42.

The tension applying device EA has a contact means 50 that abuts on the release sheet RL and applies a predetermined tension to the release sheet RL by its own weight, and a unidirectional side along a predetermined track MD (in the state of FIG. 1A). The movement allowable means 60 that allows the free movement of the abutting means 50 to the lower side) and the opposite direction side (the upper side in the state of FIG. 1A) and the inclination θ of the movement allowable means 60 with respect to the gravity direction are changed. A displacement means 70 capable of changing the tension applied to the release sheet RL is provided.
The contact means 50 includes a slider 51 whose track MD is regulated by the movement allowing means 60, and a dancer roller 52 rotatably supported by the slider 51.
The movement allowable means 60 is supported by the base plate 61, the guide rollers 62 rotatably supported by the base plate 61 (two guide rollers 62A and 62B in the present embodiment), and the base plate 61, and the slider is supported in the extending direction thereof. It is provided with a rail 63 that regulates the trajectory MD of the contact means 50 by allowing the 51 to move, and a contact means detecting means 64 such as a laser sensor or an ultrasonic sensor that detects the distance FD to the dancer roller 52. .. The track MD of the rail 63 in the state of FIG. 1A is parallel to the direction of gravity (the track of the rail 63 shown by the chain double-dashed line in FIGS. 1B and 1C). Same for MD).
The displacement means 70 includes a rotation motor 71 as a drive device that supports the base plate 61 with an output shaft 71A whose rotation center axis is coaxial with the rotation center axis of the guide roller 62A, and tension detection for detecting the tension of the release sheet RL. The means 72 is provided, and the inclination θ of the movement allowing means 60 is changed based on the detection result of the tension detecting means 72. The tension detecting means 72 includes a tension detecting roller 72C rotatably supported by a detection unit 72B of a tension detecting device 72A such as a load cell or a pressure sensor. The tension θ applied to the release sheet RL is reduced by increasing the inclination θ of the dancer roller 52.

The recovery means 80 includes a guide roller 81 and a recovery roller 83 supported by the output shaft 82A of the rotation motor 82 as a drive device, and based on the measurement result of the contact means detection means 64, the release sheet RL is formed. It is configured to be collected.

The moving means 90 includes a linear motor 91 as a drive device and a support table 92 supported by the slider 91A and capable of suction holding on the holding surface 92A by a decompression means (holding means) (not shown) such as a decompression pump or a vacuum ejector. It has.

The operation of the above sheet sticking device EA1 will be described.
First, with respect to the sheet sticking device EA1 in which each member is arranged at the initial position shown by the solid line in FIG. 1 (A), the user of the sheet sticking device EA1 (hereinafter, simply referred to as “user”) is as shown in the figure. After setting the original fabric RS in, enter the value of the desired set tension (hereinafter, also simply referred to as "set tension") to be applied to the release sheet RL via an operation means (not shown) such as an operation panel or a personal computer. , Input the signal to start automatic operation. Then, the displacement means 70 drives the rotary motor 71, and as shown in FIG. 1 (B), the tension applied to the release sheet RL is the same as the set tension value based on the detection result of the tension detection means 72. The base plate 61 is tilted so as to change the tilt θ. At this time, the displacement means 70 tilts the base plate 61 so that the detection result of the tension detecting means 72 fits within a predetermined width with respect to the set tension, for example, ± 10% or ± 20% of the set tension value. The inclination θ may be changed.

Next, the feeding output imparting means 40 drives the rotation motor 41 to feed the original fabric RS, and the tip portion of the leading adhesive sheet AS in the feeding direction is the release plate 20 as shown by the solid line in FIG. 1 (A). When the peeling edge 20A is peeled off by a predetermined length, the drive of the rotary motor 41 is stopped. When the original fabric RS is fed out as described above, the release sheet RL located between the pinch roller 43 and the recovery roller 83 moves downward in the extending direction of the rail 63 due to the weight of the contact means 50. A predetermined tension is applied between the two guide rollers 62A and 62B to form a release sheet reservoir RL1, and the release sheet reservoir RL1 becomes larger.

After that, when the user or a transport means (not shown) such as an articulated robot or a belt conveyor places the adherend WK on the holding surface 92A as shown by the solid line in FIG. 1 (A), the moving means 90 is shown. The decompression means is driven so as to start adsorbing and holding the adherend WK on the holding surface 92A. Next, the moving means 90 drives the linear motor 91, the support table 92 is moved to the left, and when the adherend WK reaches a predetermined position, the feed feed giving means 40 drives the rotating motor 41. The original fabric RS is delivered according to the moving speed of the adherend WK. As a result, the adhesive sheet AS is peeled off from the release sheet RL, and the adhesive sheet AS peeled off from the release sheet RL is of the adherend WK by the pressing roller 30 as shown by the alternate long and short dash line in FIG. 1 (A). It is pressed and attached to the upper surface. Then, when the tip portion of the adhesive sheet AS next to the first adhesive sheet AS in the feeding direction is peeled off by the peeling edge 20A of the peeling plate 20 by a predetermined length, the feeding output imparting means 40 drives the rotary motor 41. Stop.

Next, when the support table 92 supporting the adherend WK to which the adhesive sheet AS is attached reaches a predetermined position on the left side of the pressing roller 30, the moving means 90 stops driving the linear motor 91, and then the pressure is reduced (not shown). The drive of the means is stopped, and the suction holding of the adherend WK on the holding surface 92A is released. After that, when the user or a transporting means (not shown) removes the adherend WK to which the adhesive sheet AS is attached from the support table 92 and transports it to the next step, the moving means 90 drives the linear motor 91. The support table 92 is returned to the initial position, and the same pasting operation as described above is repeated thereafter.

Here, when the above-mentioned pasting operation is repeated and the contact means detecting means 64 detects that the distance FD to the dancer roller 52 has reached a predetermined separation distance FD1, as shown in FIG. 1C, the collecting means 80 drives the rotation motor 82, and the recovery roller 83 winds up the release sheet RL. Next, when the contact means detecting means 64 detects that the dancer roller 52 has risen due to the winding of the release sheet RL by the collecting roller 83 and the dancer roller 52 has returned to the initial position, the collecting means 80 rotates the motor 82. Stop driving. As a result, the release sheet RL is wound around the recovery roller 83 while a predetermined tension is applied by the weight of the contact means 50.
When changing the tension applied to the release sheet RL, if the set tension value is re-entered via an operating means (not shown) in the same manner as in the above embodiment, the displacement means 70 detects the tension detecting means 72. The base plate 61 is tilted to change the tilt θ so that the tension applied to the release sheet RL is the same as the set tension value.

According to the above embodiment, the inclination θ of the movement allowing means 60 with respect to the direction of gravity is changed and the tension applied to the release sheet RL is changed, so that it is possible to prevent the peripheral device from becoming large and the release sheet. A predetermined tension can be applied to the RL.

The means and processes in the present invention are not limited as long as they can perform the operations, functions or processes described for the means and processes, much less the components of the mere embodiment shown in the above embodiments. It is not limited to the process at all. For example, if the abutting means abuts on a long body and can apply a predetermined tension to the long body by its own weight, it may be within the technical range in light of the common general technical knowledge at the time of filing. There is no limitation (the same applies to other means and processes).

In the support means 10, the strip-shaped adhesive sheet base material temporarily attached to the release sheet RL is formed with a closed loop shape or a notch in the entire short width direction, so that a predetermined area partitioned by the notch is formed in the adhesive sheet. It may be configured to support the raw fabric as AS, or the raw fabric in which the strip-shaped adhesive sheet base material is temporarily attached to the release sheet RL is adopted, and the strip-shaped adhesive sheet base material has a closed loop shape or the entire short width direction. The notch may be formed by a cutting means, and a predetermined region partitioned by the notch may be used as the adhesive sheet AS, or the strip-shaped adhesive sheet base material itself may support the original fabric as the adhesive sheet AS. Alternatively, instead of the rollers such as the support roller 11 and the guide roller 12, the original fabric RS and the release sheet RL may be supported or guided by a plate-shaped member, a shaft member, or the like, or wound. Without this, for example, the original fabric RS may be supported so that it can be pulled out from the original fabric RS folded in a fan fold, or the guide rollers 12 may be one body, three or more bodies, or may not be provided. ..

The pressing means is supported by the output shaft of a linear motor as a drive device, and the adhesive sheet AS is held by a holding member that can be attracted and held by a decompression means (not shown) such as a decompression pump or a vacuum ejector, and is held by the holding member. The adhesive sheet AS may be pressed against the adherend WK and attached.

For example, the carry-out power applying means 40 may grip the release sheet RL with a chuck cylinder as a drive device and move the chuck cylinder to give a carry-out power to the peel-off sheet RL, or may apply the adhesive sheet AS to the release sheet AS. When peeling from the RL, the rotational torque of the rotary motor 41 and the moving torque of the chuck cylinder holding the peeling sheet RL may be controlled so that a predetermined tension is applied to the raw fabric RS.

The contact means 50 may employ a plurality of sliders 51 or a plurality of dancer rollers 52. For example, the rail 63 is a linear rail (linear guide) or a spline shaft (ball spline shaft). ), A moving body dedicated to them may be adopted as the slider 51, and if the rail 63 is a slit formed in the base plate 61, a moving body moving along the slit may be adopted as the slider 51. Alternatively, the dancer roller 52 may be allowed to move freely along the track MD by moving along a concave groove or a slit as a movement permitting means without adopting the slider 51, or the dancer roller 52 may be allowed to move freely. For example, a shaft material, a plate material, or the like may be used instead of the 52, or the slider 51 or the dancer roller 52 may be changed to a heavier one or a lighter one in order to increase or decrease the tension applied to the release sheet RL. It may be changed to, or a weight supporting means for supporting the weight may be adopted.

The movement allowance means 60 may not adopt the base plate 61, may have one guide roller 62, may have three or more guide rollers 62, may not be provided, or may be provided with a plurality of rails 63. , The rail 63 may be linear or curved such as S-shaped, J-shaped, C-shaped, or the track MD may be linear or curved, and the contact means detecting means may be used. As the 64, for example, an imaging means such as a camera or a projector, various sensors such as an optical sensor or an ultrasonic sensor, a phototube or a limit switch may be adopted, or one contact means detecting means 64 is used. It may or may not be a plurality of bodies, and when the contact means detecting means 64 is not provided, for example, when the above-mentioned pasting operation is repeated and a predetermined time elapses, or a predetermined number of adhesive sheets are provided. After the AS is attached to the adherend WK or the like, the collection means 80 may be configured to collect the release sheet RL for a predetermined time or a predetermined length.

In the displacement means 70, the rotation center axis of the output shaft 71A of the rotation motor 71 may not be coaxial with the rotation center axis of the guide roller 62A, or for example, the user may manually change the inclination θ. , The inclination θ may be changed by inclining the rail 63 without passing through the base plate 61, or the detection result of the tension detecting means 72 during the period during which the tension applying device EA or the sheet attaching device EA1 is automatically operated. Based on the above, the inclination θ is configured to be constantly changed so that the tension applied to the release sheet RL becomes the same value as the set tension value or falls within a predetermined width with respect to the set tension. May be good. The predetermined width with respect to the set tension can be arbitrarily set by the user, and is not limited by the above-mentioned mere example value.
In the above embodiment, the displacement means 70 moves the lower part of the movement allowing means 60 to the left to change the inclination θ, but the lower part of the movement allowing means 60 may move to the right to change the inclination θ. Further, in the above-described embodiment, the displacement means 70 is configured to change the inclination θ in the XX plane, but the inclination θ may be changed in the YY plane or changed in another plane. You may.
The tension detecting means 72 may or may not be provided in the tension applying device EA or the sheet attaching device EA1 of the present invention, and when the tension detecting means 72 is not provided, for example, the user has an experience value. The inclination θ may be changed with.

The collecting means 80 may collect the peeling sheet RL when the feeding power giving means 40 gives the peeling output to the peeling sheet RL, or the feeding power giving means 40 gives the peeling output to the peeling sheet RL. The release sheet RL may be collected when the release sheet RL is not wound, or the release sheet RL may be gripped by, for example, a chuck cylinder as a drive device, and the release sheet RL may be moved to move the release sheet RL without winding the release sheet RL. It may be collected by RL, it may be folded by fan fold, it may be collected by chopping it with a shredder or the like, or it may be simply accumulated and collected by collecting the release sheet RL without winding or folding it by fan fold. May be good.

The moving means 90 moves the support means 10 peeling means, the pressing means, the feed output applying means 40, the tension applying device EA, and the like without moving or moving the support table 92, and attaches the adhesive sheet AS to the adherend WK. May be affixed, or the holding surface 92A may not be able to be sucked and held.

In the tension applying device EA of the present invention, the inclination θ can be set at an arbitrary angle between 0 degrees and 90 degrees, and the tension detecting means 72 detects that the set tension value is not reached even if the inclination θ is set to 0 degrees. If the user senses it by experience, for example, the user can change to a heavier slider 51 or dancer roller 52, or support the weight with the above-mentioned weight supporting means. it can. When the tension detecting means 72 detects that the tension applied to the release sheet RL is insufficient even if the inclination θ is set to 0 degrees, the tension shortage notification means such as a warning light or a voice is driven to that effect. It may be configured to notify the person.
In the tension applying device EA of the present invention, when the inclination θ is set to a wide angle such as 80 degrees to 90 degrees, the movement of the slider 51 with respect to the rail 63 becomes slow due to static friction and dynamic friction, and tension is applied to the release sheet RL. It becomes unstable. In such a case, the user changes the slider 51 or the dancer roller 52 to a lighter one, or makes the weight supported by the above-mentioned weight supporting means lighter or removes the weight, and sets the inclination θ to, for example, 0 degrees. It may be set within the narrowing angle such as less than 80 degrees. In addition, an imaging means such as a camera or a projector that detects that the movement of the slider 51 with respect to the rail 63 is slow, or a movement slowing detection means such as various sensors such as an optical sensor or an ultrasonic sensor are adopted, and the movement is said to be adopted. When the detecting means detects that the movement of the slider 51 with respect to the rail 63 is slow, the movement slowing notification means such as a warning light or a voice may be driven to notify the user to that effect. .. The wide angle and the sandwich angle are not limited to the above examples. For example, the wide angle is 85 degrees to 90 degrees and the sandwich angle is 0 degrees to 85 degrees, or the wide angle is 75 degrees to 90 degrees and the sandwich angle. May be 0 to 75 degrees, the wide angle may be 85 to 90 degrees, and the sandwiching angle may be 0 to 75 degrees.
The tension applying device EA of the present invention may constitute a feeding device that applies a predetermined tension to the release sheet RL by the supporting means 10 and the feeding output applying means 40, and feeds the peeling sheet RL. In addition to the device and the sheet pasting device EA1, for example, it may be used in other devices such as a sheet laminating device for laminating an adhesive sheet AS and a printing device for printing or applying on an adhesive sheet AS, and a feeding device or a sheet. It may be used alone without being used for the sticking device EA1 or other devices.
At least one of the support means 10, the peeling means, the pressing means, the feed output applying means 40, the collecting means 80, and the moving means 90 may be provided in the tension applying device EA or the sheet attaching device EA1 of the present invention. It does not have to be provided, and if it is not provided, it can be replaced by another device.

The long body is not limited to the release sheet RL, but any of the original fabric RS, strip-shaped adhesive sheet, paper, cloth, steel plate, belt, resin, wood board, thread, string, wire, wire, cord, tube, hose, etc. It may be something like.

The material, type, shape, etc. of the adhesive sheet AS and the adherend WK in the present invention are not particularly limited. For example, the adhesive sheet AS may have a circular shape, an elliptical shape, a polygonal shape such as a triangle or a quadrangular shape, or another shape, or may have an adhesive form such as pressure-sensitive adhesiveness or heat-sensitive adhesiveness. When a heat-sensitive adhesive sheet AS is adopted, it may be adhered by an appropriate method such as providing an appropriate coil heater for heating the adhesive sheet AS or a heating means such as a heating side of a heat pipe. Further, such an adhesive sheet AS has three layers, for example, a single layer having only an adhesive layer, an intermediate layer between a base material and an adhesive layer, and a cover layer on the upper surface of the base material. Further, it may be a so-called double-sided adhesive sheet capable of peeling the base material from the adhesive layer, and the double-sided adhesive sheet may have a single layer or a multi-layer intermediate layer. , It may be a single layer or a multi-layer without an intermediate layer. The adherend WK includes, for example, foods, resin containers, semiconductor wafers such as silicon semiconductor wafers and compound semiconductor wafers, circuit boards, information recording boards such as optical disks, glass plates, steel plates, pottery, wood boards or resins. It may be a single product or a composite product formed of two or more of them, and any form of a member or an article can be targeted. The adhesive sheet AS can be read in a functional and versatile manner, for example, an information description label, a decorative label, a protective sheet, a dicing tape, a die attach film, a die bonding tape, a recording layer forming resin sheet, or the like. Sheets, films, tapes, etc. may be used.

The drive device in the above embodiment is an electric device such as a rotary motor, a linear motor, a linear motor, a single-axis robot, an articulated robot having two or more axes of joints, an air cylinder, a hydraulic cylinder, and a rodless. Actuators such as cylinders and rotary cylinders can be adopted, and those in which they are directly or indirectly combined can also be adopted.
In the above embodiment, when a rotating member such as a roller is adopted, a driving device for rotationally driving the rotating member may be provided, or the surface of the rotating member or the rotating member itself can be deformed by rubber, resin, or the like. It may be composed of a member, the surface of the rotating member or the rotating member itself may be composed of a member that does not deform, or another member such as a shaft or a blade that rotates or does not rotate may be adopted instead of the roller. Alternatively, when a pressing means such as a pressing roller or a pressing head or a pressing member that presses a pressed object is adopted, a roller, a round bar, or a blade may be used in place of or in combination with the above-exemplified one. A member such as a material, rubber, resin, or sponge may be adopted, or a structure that presses by blowing a gas such as air or gas may be adopted, or a deformable member such as rubber or resin may be used to press. It may be composed of a member that does not deform, or if a peeling means such as a peeling plate or a peeling roller or a peeling member that peels off an object to be peeled is adopted, it is illustrated above. A plate-shaped member, a round bar, a roller, or the like may be used in place of or in combination with the material, or the material to be peeled off may be made of a deformable member such as rubber or resin, or may be deformed. It may be composed of members that do not, or when a member that supports (holds) a supported member (held member) such as a supporting (holding) means or a supporting (holding) member is adopted, a mechanical chuck or a chuck cylinder. Such as gripping means, Coulomb force, adhesive (adhesive sheet, adhesive tape), adhesive (adhesive sheet, adhesive tape), magnetic force, Bernoulli suction, suction suction, drive equipment, etc. to support (hold) the supported member. Is used, or when a member to be cut such as a cutting means or a cutting member is cut, or a member having a cut or a cutting line is formed in the member to be cut, instead of the one illustrated above. Alternatively, use a cutter blade, laser cutter, ion beam, thermal power, heat, water pressure, heating wire, spraying of gas or liquid, etc. to cut, or use a combination of appropriate drive equipment to cut. You may move what you want to do and cut it.

EA Tension Applying Device 50 Abutment Means 60 Movement Allowing Means 70 Displacement Means 72 Tension Detection Means MD Track RL Peeling Sheet (Long Body)
θ slope

Claims (3)

A tension applying device that applies a predetermined tension to a long body.
A contact means that abuts on the long body and applies a predetermined tension to the long body by its own weight.
A movement permitting means that allows the free movement of the abutting means to one direction side and the opposite direction side along a predetermined trajectory, and
A tension applying device comprising: a displacement means capable of changing the inclination of the movement allowing means with respect to the direction of gravity and changing the tension applied to the long body. The first aspect of the present invention is characterized in that the displacement means includes a tension detecting means for detecting the tension of the long body, and the inclination of the moving allowable means is changed based on the detection result of the tension detecting means. Tensioning device. It is a tension applying method that applies a predetermined tension to a long body.
Free movement in one direction and the opposite direction along a predetermined trajectory is allowed by the movement permitting means, and the contacting means that applies a predetermined tension to the long body by its own weight is brought into contact with the long body. Contact process and
A method for applying tension, which comprises performing a displacement step of changing the inclination of the movement allowing means with respect to the direction of gravity and changing the tension applied to the long body.