JP7320435B2 - Sheet folding device and sheet folding method - Google Patents

Description

The present invention relates to a sheet folding device and a sheet folding method.

2. Description of the Related Art Conventionally, a device for folding an adhesive sheet is known (see Patent Document 1, for example).

JP 2017-107945 A

In the sheet peeling device 10 (sheet folding device) described in Patent Document 1, the bent portion AS1 (folding base portion) of the adhesive sheet AS (adhesive sheet) is bent by the upper chuck member 41F and the lower chuck member 41L (crimping member). In the case of crimping, the ridge line of the folded base is long, so the crimping member must also be large, which is inconvenient in that the size of the device increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide a sheet folding device and a sheet folding method that can prevent the device from becoming large.

The present invention employs the configurations described in the claims.

According to the present invention, the adhesive sheet is folded at the position of the folded sheet portion so that the folded sheet portion formed in the adhesive sheet abuts on one surface or the other surface of the adhesive sheet, and is adhered inside the folded sheet portion. Since the folding base of the sheet is positioned and at least one end and the other end of the folding base are crimped by the crimping member, it is possible to prevent the apparatus from becoming large.

1 is an explanatory diagram of a sheet peeling device provided with a sheet folding device according to an embodiment of the present invention; FIG. FIG. 4 is an explanatory view of the operation of the sheet peeling device; (A) to (D) are diagrams for explaining the operation of the sheet peeling device. (E) is an explanatory diagram of a modification of the present invention.

An embodiment of the present invention will be described below with reference to the drawings.
Note that the X-axis, Y-axis, and Z-axis in this embodiment are orthogonal to each other, and the X-axis and Y-axis are axes within a predetermined plane, and the Z-axis is an axis orthogonal to the predetermined plane. do. Furthermore, in this embodiment, when viewed from the front direction of FIG. The direction of the arrow on the X axis is left, and the opposite direction is right, and the front direction is parallel to the Y axis in FIG.

The sheet folding device EA folds the adhesive sheet AS so that one surface AS1 of the adhesive sheet AS faces the inside, and forms a folded sheet portion AS2 (see FIG. 2C) in the adhesive sheet AS. A first folding means 10, a second folding means 20 for folding the adhesive sheet AS so that the other surface AS3 of the adhesive sheet AS other than the folded sheet portion AS2 faces inward, and a second folding means 20. A folding means 30 for bringing the other surfaces AS3 of the folded adhesive sheet AS into contact with each other and crimping them to fold the adhesive sheet AS, and folding the adhesive sheet AS pasted on the adherend WK from the adherend WK. A sheet peeling device EA1 is composed of a peeling means 40 for peeling, an adherend supporting means 50 for supporting an adherend WK, and a discarding means 60 for discarding the folded adhesive sheet AS. In the state shown in FIG. 1, the adhesive sheet AS and the adherend WK are formed in a rectangular shape with apexes at both left-right direction ends and front-back direction ends.

The first bending means 10 is connected to the blow-out member 11 such as a blow-out pipe or nozzle for blowing out a gas such as air or gas, and a pipe 12A to the blow-out member 11, and pressurizes the blow-out member 11 to supply gas. and gas supply means 12 such as a pump and a turbine.

The second folding means 20 includes a linear motor 21 as a driving device and a contact roller 22 rotatably supported by its slider 21A, and the folded sheet portion AS2 contacts one surface AS1 of the adhesive sheet AS. It is configured such that the adhesive sheet AS is folded at the position of the folded sheet portion AS2 so as to be in contact with each other. Two blowing members 11 are arranged side by side in the front-rear direction via a bracket 11A supported by the slider 21A.

The folding means 30 includes a support frame 32 supported by a slider 31A of a linear motor 31 as a drive device, a direct-acting motor 33 as a drive device supported by the support frame 32, and a folded sheet portion AS2. As a crimping member for positioning the folding base AS4 (see FIG. 3B) of the seat AS and crimping at least one end AS5 and the other end AS6 (see FIG. 3D) of the folding base AS4 An upper chuck member 34 and a lower chuck member 35 are provided.
The upper chuck member 34 is supported by the output shaft 33 A of the direct-acting motor 33 , and the lower chuck member 35 is supported by the lower portion of the support frame 32 .

The peeling means 40 includes feeding means 41 for feeding the heat-sensitive adhesive peeling tape PT, pressing means 42 for pressing and attaching the peeling tape PT to the adhesive sheet AS, and cutting means 43 for cutting the peeling tape PT. , and guide means 44 for guiding the adhesive sheet AS to which the peeling tape PT is attached.
The feeding means 41 is supported by a rotating arm 41B rotatable about a rotating shaft 41A, supported by a supporting roller 41C supporting the peeling tape PT, and an output shaft (not shown) of a rotating motor 41D as a driving device. A driving roller 41E, a spring 41F as an urging means for urging the rotating arm 41B toward the driving roller 41E, an accommodating means 41J supported by an output shaft 41H of a linear motor 41G as a driving device, and an accommodating means 41J. suction means 41M such as a decompression pump or a vacuum ejector for sucking the peeling tape PT through suction holes 41L formed in a suction surface 41K, which is the bottom surface of the storage means 41J; An auxiliary roller 41Q is supported by the output shaft 41P of the motor 41N and brings the peeling tape PT into contact with the attracting surface 41K.
The pressing means 42 includes a linear motor 42A as a driving device housed in the housing means 41J, a pressing head 42C supported by a slider 42B of the linear motor 42A and protruding and retracting from the bottom surface of the housing means 41J, A heating means 42D such as a coil heater provided in the pressing head 42C or a heating side of a heat pipe is provided.
The cutting means 43 includes a linear motor 43A as a driving device housed in the housing means 41J, and a cutting blade 43C supported by a slider 43B of the linear motor 43A and protruding and retractable from the bottom surface of the housing means 41J. I have it.
The guide means 44 includes a linear motor 44A as a driving device, a rotary motor 44C as a driving device supported by a slider 44B of the linear motor 44A, and a pressing roller supported by an output shaft (not shown) of the rotary motor 44C. 44D, a support member 44G supported by an output shaft 44F of a direct-acting motor 44E as a drive device, a pinch roller 44H rotatably supported by the support member 44G, and a cut roller 44H supported by the support member 44G. and a sheet support member 44K having a groove 44J for receiving the entry of the blade 43C.

The adherend support means 50 is supported by a linear motor 51 as a drive device and a slider 51A of the linear motor 51, and has a table having a support surface 52A that can be held by suction by a decompression means (not shown) such as a decompression pump or a vacuum ejector. 52.

The discarding means 60 includes a recovery box 61 for recovering the adhesive sheet AS separated from the adherend WK.

The operation of the sheet peeling device EA1 provided with the sheet folding device EA will be described.
First, a user of the sheet peeling device EA1 (hereinafter simply referred to as the “user”) moves the sheet peeling device EA1 to the initial position indicated by the solid line in FIG. After the tape PT is set, a signal for starting automatic operation is inputted through an input means such as an operation panel (not shown) or a personal computer. Then, the peeling means 40 drives the suction means 41M to start sucking and holding the peeling tape PT on the suction surface 41K.

Next, a user or a conveying means (not shown) such as an articulated robot or a belt conveyor moves the adherend WK to which the adhesive sheet AS is attached to a predetermined position on the support surface 52A, as indicated by the solid line in FIG. When placed, the adherend supporting means 50 drives the decompressing means (not shown) to start sucking and holding the adherend WK on the supporting surface 52A. Thereafter, the adherend supporting means 50 drives the linear motor 51 to move the table 52 rightward, and as indicated by the two-dot chain line in FIG. Drive of the linear motor 51 is stopped when it is positioned directly below. Next, the peeling means 40 drives the direct-acting motor 41N, and after the auxiliary roller 41Q is retracted from below the accommodating means 41J as indicated by the chain double-dashed line in FIG. , and the storage means 41J is lowered to a predetermined position directly above the adhesive sheet AS while feeding the peeling tape PT. Then, the peeling means 40 drives the heating means 42D and the linear motor 42A, and as shown in FIG. Apply by pressing.

When the application of the peeling tape PT to the adhesive sheet AS is completed, the peeling means 40 stops driving the suction means 41M, drives the linear motor 42A and the linear motor 41G, and initializes the pressing head 42C and the containing means 41J. return to position. Next, the peeling means 40 drives the direct-acting motor 44E, and the pinch roller 44H and the pressing roller 44D sandwich the peeling tape PT with a predetermined pressing force. After that, the adherend supporting means 50 drives the linear motor 51 to move the table 52 leftward so that the outer peripheral portion AS7 of the adhesive sheet AS is positioned directly below the lowermost portion of the pressing roller 44D. Next, the peeling means 40 drives the rotation motor 41D to wind the peeling tape PT by a predetermined length, and drives the linear motor 44A to move the pressure roller 44D to the maximum position as shown in FIG. 2(B). While bending the peeling tape PT at the lower portion, the bent portion is pressed. Then, the peeling means 40 and the adherend support means 50 drive the rotation motor 44C and the linear motor 51 to move the table 52 leftward, while rotating the pressing roller 44D counterclockwise. The two folding means 20 drives the linear motor 21 to move the contact roller 22 to the right while contacting the peeling tape PT and the adhesive sheet AS. As a result, the adhesive sheet AS is peeled off from the adherend WK while being pressed by the lowermost portion of the pressing roller 44D following the peeling tape PT, and the other surface AS3 side is peeled off by the contact roller 22. It is folded so that At this time, the first bending means 10 drives the gas supply means 12, and the blowing member 11 blows the gas onto both ends of the adhesive sheet AS in the front-rear direction, thereby forming the adhesive sheet AS as shown in FIG. 2(C). The adhesive sheet AS is folded so that one surface AS1 of the adhesive sheet AS faces inward, thereby forming a folded sheet portion AS2 in the adhesive sheet AS.

When the entire adhesive sheet AS is peeled off from the adherend WK, the second folding means 20, peeling means 40 and adherend support means 50 stop driving the linear motor 21, rotary motor 44C and linear motor 51. , the rotation of the rotary motor 44C is locked while the other outer peripheral portion AS8 of the adhesive sheet AS is sandwiched between the pressing roller 44D and the pinch roller 44H. Next, the peeling means 40 and the second folding means 20 drive the rotary motor 41D and the linear motor 21 to move the contact roller 22 in the left-right direction, and the peeling tape PT is paid out or wound up, A region of the peeling tape PT near the outer peripheral portion AS7 of the adhesive sheet AS is positioned directly below the cutting blade 43C. After that, while the peeling means 40 locks the rotation of the rotating motor 41D, the second folding means 20 and the peeling means 40 drive the linear motor 21 and the rotating motor 44C, and the pressing roller 44D and the pinch roller 44H are rotated. The other outer peripheral portion AS8 of the adhesive sheet AS is pulled out from between and, as shown in FIG. 3A, the one outer peripheral portion AS7 and the other outer peripheral portion AS8 of the adhesive sheet AS are aligned. At this time, when the folded sheet portion AS2 of the adhesive sheet AS reaches the contact roller 22 and the adhesive sheet AS is folded toward the other surface AS3 at the position of the folded sheet portion AS2 by the contact roller 22, FIG. As shown in (A), the folded sheet portion AS2 rolls up toward one surface AS1 and contacts the one surface AS1. Next, the first folding means 10 stops driving the gas supply means 12, the folding means 30 drives the linear motor 31 and the linear motor 33, and the upper chuck member 34 and the lower chuck member 35 are opened as shown in FIG. After moving to the position shown in (A), the second folding means 20 drives the linear motor 21 to return the contact roller 22 to the initial position.

Then, the folding means 30 drives the direct-acting motor 33 to lower the upper chuck member 34 as shown in FIG. The entire folding base AS4 is crimped so as to fold the adhesive sheet AS. Further, the peeling means 40 drives the direct-acting motor 41G to lower the containing means 41J and press the outer peripheral portion AS7 and the outer peripheral portion AS8 of the adhesive sheet AS. Next, after the peeling means 40 drives the suction means 41M to suck and hold the peeling tape PT on the suction surface 41K, the linear motor 43A is driven to lower the cutting blade 43C to cut the peeling tape PT. After that, the stripping means 40 drives the direct-acting motor 41G and the linear motor 43A to return the accommodating means 41J and the cutting blade 43C to their initial positions, and then drives the direct-acting motor 41N to return the auxiliary roller 41Q to its initial position. Let Next, the folding means 30 drives the linear motor 31 and the direct-acting motor 33 to return the upper chuck member 34 and the lower chuck member 35 to their initial positions, and as shown in FIGS. 3(C) and 3(D), The adhesive sheet AS is dropped by its own weight and discarded in the collection box 61 . Then, when the user or unillustrated conveying means conveys the adherend WK on the table 52 to the next step, each means drives its respective driving device to return each member to its initial position, and the same operation is performed thereafter. Repeated.

According to the embodiment as described above, the adhesive sheet AS is folded at the position of the folded sheet portion AS2 so that the folded sheet portion AS2 formed in the adhesive sheet AS contacts one surface AS1 of the adhesive sheet AS, The folding base AS4 of the adhesive sheet AS is positioned within the folding sheet AS2, and at least one end AS5 and the other end AS6 of the folding base AS4 are crimped by the upper chuck member 34 and the lower chuck member 35. It is possible to prevent the device from becoming large.

As described above, the best configuration, method, etc. for carrying out the present invention are disclosed in the above description, but the present invention is not limited thereto. That is, although the present invention has been particularly illustrated and described primarily with respect to certain embodiments, it is understood that there may be modifications to the above-described embodiments without departing from the spirit and scope of the invention. Various modifications can be made by those skilled in the art in terms of materials, quantity, and other detailed configurations. In addition, the descriptions that limit the shape, material, etc. disclosed above are exemplified to facilitate understanding of the present invention, and do not limit the present invention. The description by the name of the member that removes some or all of the limitations such as is included in the present invention.

For example, the first folding means 10 forms the folded sheet portion AS2 by folding the adhesive sheet AS with a contact member such as a blade member or a rod-shaped member, instead of or in combination with the blowing member 11 and the gas supply means 12. Alternatively, a suction means such as a suction nozzle connected to a suction force imparting means such as a decompression pump or a vacuum ejector is provided, and the adhesive sheet AS is sucked by the suction means to fold the adhesive sheet AS to form a folded sheet. Alternatively, the folded sheet portion AS2 may be formed by folding the adhesive sheet AS in the YZ plane to the right or left, or another slider of the linear motor 21 may be used to form the blowout member. 11 may be supported to move the blowing member 11 left and right, or the blowing member 11 may be moved in at least one of the left-right direction and the front-rear direction by another driving device provided separately from the linear motor 21. Alternatively, the blowing member 11 may be moved by extending and contracting the bracket 11A by a driving device, or may not be moved by the driving device, or a single or three or more blowing members 11 may be folded. The curved sheet portion AS2 may be formed, or if the front and rear ends of the adhesive sheet AS hang down under their own weight simply by supporting the adhesive sheet AS on the sheet support member 44K, and the folded sheet portion AS2 can be formed. Instead of or in combination with the blowing member 11 and the gas supply means 12, the sheet supporting member 44K may be used as the first folding means 10, or may be folded by the second folding means 20 as shown in FIG. When the sheet portion AS2 is folded so as to abut on one surface AS1 of the adhesive sheet AS, the folded sheet portions AS2 may be formed to overlap each other, or the folded sheet portions AS2 may be formed only in the front portion of the adhesive sheet AS. The folded sheet portion AS2 may be formed, the folded sheet portion AS2 may be formed only in the rear portion of the adhesive sheet AS, or the folded sheet portion AS2 may be formed so that the adhesive sheet AS can be folded in half. Alternatively, the folded sheet portion AS2 may be formed by folding the front portion or the rear portion of the adhesive sheet AS twice, three times or more.

The second folding means 20 folds the adhesive sheet AS so that one surface AS1 of the adhesive sheet AS other than the folded sheet portion AS2 faces inward, and the folded sheet portion AS2 is one side of the adhesive sheet AS. The adhesive sheet AS may be folded so as to come into contact with the surface AS1, or may be folded by a folding member such as a rod-shaped member or a plate-shaped member or by blowing air instead of or in combination with the contact roller 22. may be adopted.

The folding means 30 may contact and crimp one surface AS1 of the adhesive sheet AS folded by the second folding means 20, or may be used in place of or in combination with the upper chuck member 34 and the lower chuck member 35. Alternatively, other crimping members such as rollers may be employed, or the central portion of the folding base AS4 other than the one end AS5 and the other end AS6 may not be crimped, and the upper chuck member 34 and At least one of the lower chuck members 35 may be provided with holding means for holding the adhesive sheet AS. Any type may be used, such as one that penetrates the adhesive sheet AS to hold the adhesive sheet AS.

The peeling means 40 may have a configuration in which a sheet of peeling tape is attached to the adhesive sheet AS, or the adhesive sheet AS may be directly held and peeled by a drive device, suction holding, or the like without the peeling tape PT intervening. Alternatively, the adhesive sheet AS may be peeled off by at least one of driving the rotation motor 41D, driving the rotation motor 44C, and driving the linear motor 51. The means 41J and the sheet supporting member 44K may not press the adhesive sheet AS. When the peeling tape PT is attached to the adhesive sheet AS in the apparatus of (1), the delivery means 41, the pressing means 42 and the cutting means 43 may not be provided.
The delivery means 41 may employ an elastic member such as rubber or resin, a driving device, or a pinch roller that pinches the peeling tape PT with the driving roller 41E instead of or in combination with the spring 41F as the biasing means. However, instead of or in combination with the auxiliary roller 41Q, a rod-like member, a plate-like member, or a configuration in which the peeling tape PT is brought into contact with the adsorption surface 41K by blowing air may be adopted. If it can be held only by the suction means 41M, the auxiliary roller 41Q may not be provided, and the peeling tape PT may be supported without urging the rotating arm 41B toward the drive roller 41E. , a pinch roller or the like that pinches the peeling tape PT with the driving roller 41E.
The pressing means 42 may not be housed in the housing means 41J, and when a pressure-sensitive adhesive peeling tape PT is employed, the heating means 42D may or may not be present.
The cutting means 43 may not be housed in the housing means 41J, and may be omitted when the peeling tape PT is cut by another device.
The guide means 44 may press the area of the adhesive sheet AS separated from the adherend WK so as to come into contact with the area attached to the adherend WK, or may hold it out of contact. However, the adhesive sheet AS may be pressed at any position such as the left end, middle part, or right end of the adhesive sheet AS. Alternatively, instead of or in combination with the pinch roller 44H, the peeling tape PT or the like may be sandwiched between the pressing roller 44D by a plate-like member or air blowing, etc., or a driving device other than the direct-acting motor 44E. , or the groove 44J may not be provided in the sheet support member 44K.

The adherend supporting means 50 may move the peeling tape PT without or while moving the adherend WK. The adherend WK and the peeling tape PT may be moved by another driving device, and the sheet folding device EA and the sheet peeling device EA1 of the present invention may or may not be provided with them.

The discarding means 60 may include shredding means such as a shredder for shredding the discarded adhesive sheet AS.

In the above description, one surface AS1 was the surface that was not adhered to the adherend WK, and the other surface AS3 was the surface that was adhered to the adherend WK. The surface that was adhered to WK may be the surface, and the other surface AS3 may be the surface that was not adhered to the adherend WK.
The material, type, shape, etc. of the adhesive sheet AS, the peeling tape PT, and the adherend WK are not particularly limited. For example, the adhesive sheet AS, the peeling tape PT, and the adherend WK may be circular, elliptical, polygonal such as triangular or square, or other shapes. Adhesion forms such as pressure-sensitive adhesiveness and heat-sensitive adhesiveness may also be used. Further, such adhesive sheet AS and peeling tape PT are, for example, those having a single layer consisting only of an adhesive layer, those having an intermediate layer between the base sheet and the adhesive layer, and those having It may be one having three or more layers such as having a cover layer, or a so-called double-sided adhesive sheet in which the base sheet can be peeled off from the adhesive layer. It may be one having an intermediate layer between layers, or a single layer or multiple layers without an intermediate layer. Examples of the adherend WK include food, resin containers, semiconductor wafers such as silicon semiconductor wafers and compound semiconductor wafers, information recording substrates such as circuit boards and optical discs, glass plates, steel plates, ceramics, wood plates, resin plates, and the like. , any form of member or article, etc. can also be targeted. In addition, the adhesive sheet AS is replaced with a functional and application reading, for example, an information label, a decorative label, a protective sheet, a dicing tape, a die attach film, a die bonding tape, a recording layer forming resin sheet, etc. Sheets, films, tapes, etc. of any shape can be applied to any adherend WK as described above.

The means and steps in the present invention are not limited in any way as long as they can perform the operations, functions or steps described for those means and steps. The process is not limited at all. For example, if the first folding means folds the adhesive sheet so that one surface of the adhesive sheet faces inward, and forms a folded sheet portion in the adhesive sheet, then in light of the common general knowledge at the time of filing the application. In addition, there is no limitation as long as it is within the technical scope (description of other means and steps is omitted).
In addition, the drive equipment in the above embodiments includes electric equipment such as rotating motors, direct-acting motors, linear motors, single-axis robots, articulated robots, actuators such as air cylinders, hydraulic cylinders, rodless cylinders and rotary cylinders. In addition, it is also possible to employ a direct or indirect combination of them (some of which overlap with those exemplified in the embodiments).
In the above embodiments, when a rotating member such as a roller is employed, a drive device for rotating the rotating member may be provided, or the surface of the rotating member or the rotating member itself may be made of deformable material such as rubber or resin. 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 other members such as a shaft or a blade that rotates or does not rotate instead of the roller. Alternatively, if a pressing means such as a pressing roller or a pressing head or a pressing member that presses an object to be pressed is adopted, a roller, a round bar, a blade can be used instead of or in combination with the above examples A member such as material, rubber, resin, sponge, etc. may be adopted, or a configuration in which pressure is applied by blowing gas such as air or gas may be adopted. It may be configured with a member that does not deform, and a member that supports (holds) a member to be supported (member to be held) such as a support (holding) means or a support (holding) member is adopted. If it is held by mechanical chucks, chuck cylinders, or other gripping means, Coulomb force, adhesives (adhesive sheets, adhesive tapes), adhesives (adhesive sheets, adhesive tapes), magnetic force, Bernoulli adsorption, suction adsorption, drive equipment, etc. A structure that supports (holds) a support member may be adopted, or a cutting means or cutting member that cuts a member to be cut or forms a cut or a cutting line in the member to be cut is adopted. , Instead of or in combination with the above examples, cutter blades, laser cutters, ion beams, thermal power, heat, water pressure, heating wires, spraying of gas, liquid, etc. are used for cutting, or as appropriate It is also possible to move and cut the material to be cut by a combination of various driving devices.

EA sheet folding device 10 first folding means 20 second folding means 30 folding means 34 upper chuck member (crimping member)
35 Lower chuck member (crimping member)
AS Adhesive sheet AS1 One surface AS2 Folded sheet portion AS3 Other surface AS4 Folding base AS5 One end AS6 Other end

Claims (2)

a first folding means for folding the adhesive sheet so that one surface of the adhesive sheet faces the inside to form a folded sheet portion in the adhesive sheet;
a second folding means for folding the adhesive sheet so that the other surface side or one surface side of the adhesive sheet other than the folded sheet portion faces inward;
Folding means for folding the adhesive sheet by contacting and crimping the other surfaces or one of the surfaces of the adhesive sheet folded by the second folding means,
The second folding means folds the adhesive sheet at the position of the folded sheet portion so that the folded sheet portion contacts one surface or the other surface of the adhesive sheet,
The folding means is characterized in that the folding base portion of the adhesive sheet is positioned within the folded sheet portion, and includes a crimping member for crimping at least one end portion and the other end portion of the folding base portion. Sheet folding device. a first folding step of folding the adhesive sheet so that one surface of the adhesive sheet faces inward and forming a folded sheet portion in the adhesive sheet;
a second folding step of folding the adhesive sheet so that the other side or one side of the adhesive sheet other than the folded sheet portion faces inward;
a folding step of folding the adhesive sheet by contacting and crimping the other surfaces or one of the surfaces of the adhesive sheet folded in the second folding step;
In the second folding step, the adhesive sheet is folded at the position of the folded sheet portion so that the folded sheet portion contacts one surface or the other surface of the adhesive sheet;
In the folding step, the folding base portion of the adhesive sheet is positioned within the folded sheet portion, and at least one end portion and the other end portion of the folding base portion are crimped by a crimping member. Method.

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