Adhesive tape application device

Abstract

To provide an adhesive tape sticking device capable of automatically heading an adhesive tape.SOLUTION: An adhesive tape sticking device comprises: a supply part 12 for supplying a tape-shaped member 2 having an adhesive tape 21 attached to a release tape 22; a sticking part 11 for sticking a sticking surface opposite to the release tape of the adhesive tape to an object to be stuck; a conveyance part 14 for conveying the tape- shaped member from the supply part to the sticking part; an illumination part 17 placed on the adhesive tape side of the tape-shaped member and provided that an optical axis is directed to a sticking reference position 10 set with respect to the sticking part and obliquely intersects with a perpendicular direction of the sticking surface of the adhesive tape located at the sticking reference position at a preset angle; an imaging part 18 for arranging the optical axis aligned with the sticking reference position on the adhesive tape side of the tape-shaped member and for imaging the tape-shaped member positioned at the sticking reference position; and a determination part 196 for determining the quality of the state of a cut 20 in the adhesive tape on the basis of an image of the tape-shaped member obtained by the imaging part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an adhesive tape application device. [Background technology]

[0002] In the manufacturing process of flat panel displays such as liquid crystal displays and organic electroluminescence displays, it is necessary to mount electronic components on the substrate, which is the object to which they are to be attached. This mounting is carried out, for example, by temporarily bonding the electronic components to terminals provided on the upper peripheral surface of the substrate using adhesive tape, and then applying heat and pressure to perform the main bonding.

[0003] The electronic components to be attached are, for example, IC chips, TCP (Tape Carrier Package), COF (Chip On Film), etc. TCP is a package in which a chip such as an IC is mounted on a thin film. The adhesive tape is, for example, a tape made of ACF (Anisotropic Conductive Film) that is several millimeters wide and several tens of microns thick. ACF is an anisotropic conductive film made of resin containing metal particles.

[0004] Such a thin adhesive tape is configured as a tape-like member attached to a release tape. The tape-like member is fed from a reel, and after the adhesive tape is pressure-bonded to a substrate, only the release tape is peeled off and discharged.

[0005] When the adhesive tape of the tape-shaped material runs out due to the application work, it is manually replaced with a new tape-shaped material. Specifically, the operator performs the following operations. First, the reel that has run out of adhesive tape is replaced with an unused reel. A new tape-shaped material is pulled out from the replaced unused reel. A predetermined length of adhesive tape is peeled off from the tip of the pulled out tape-shaped material and set in the application device. The adhesive tape at the tip is peeled off in this manner in order to prevent the tape-shaped material from being poorly transported due to the adhesive tape adhering to transport rollers, etc. that transport the tape-shaped material (release tape) by pinching it from both sides on the downstream side of the application work position in the transport direction. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2004-186387 A Summary of the Invention [Problem to be solved by the invention]

[0007] As described above, when the tape-shaped material is replaced, a head alignment operation is performed to align the leading portion (hereinafter simply referred to as the "leading end") of the adhesive tape, which is the break in the tape, to a predetermined position in order to ensure the accuracy of adhesion to the substrate. In this conventional head alignment operation, the operator visually aligns the tape-shaped material to a predetermined position, for example, the adhesion operation position, while feeding the tape-shaped material, and due to the configuration of the device, it is sometimes difficult to visually confirm the tape-shaped material from the adhesive tape side, making it difficult to align it to the predetermined position, such as by feeding the tape-shaped material too far.

[0008] The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an adhesive tape application device which can automatically locate the beginning of an adhesive tape. [Means for solving the problem]

[0009] The adhesive tape application device of the present invention comprises a supply unit which supplies a tape-shaped member having an adhesive tape applied to a release tape, an application unit which applies an application surface of the adhesive tape opposite to the release tape to an object to be applied, a transport unit which sends the tape-shaped member from the supply unit to the application unit, and a transport unit which is disposed on the adhesive tape side of the tape-shaped member, The adhesive portion is set an imaging unit that images the tape-shaped material positioned at a reference application position, and a determination unit that determines whether a state of a cut in the adhesive tape is good or bad based on the image of the tape-shaped material obtained by the imaging unit, the determining unit determines the presence or absence of the adhesive tape in a plurality of areas set along a width direction of the adhesive tape before and after the application reference position, and determines whether a break in the adhesive tape is in a good or bad state based on the determination result; It is characterized by:

[0010] The tape-shaped material may be provided with a cutting section having a cutter provided between the supply section and the adhering section, which cuts the adhesive tape of the tape-shaped material to form a half-cut line which serves as the discontinuity, the conveying section feeds the tape-shaped material so that the half-cut line is located at the adhering reference position, the imaging section images the tape-shaped material including the half-cut line, and the judging section detects the half-cut line from the image obtained by the imaging section and judges whether the shape of the cut surface of the half-cut line is good or bad.

[0011] The determination unit may determine whether or not the detected half-cut line is within an allowable range including the attachment reference position.

[0012] The tape-shaped material may be fed by a conveying control unit that calculates the distance between the half-cut line and the reference application position, and when the judgment unit judges that the half-cut line is outside the acceptable range, the conveying unit may feed the tape-shaped material so that the half-cut line is positioned at the reference application position based on the distance calculated by the conveying control unit.

[0013] The application unit applies the adhesive tape downstream of the half-cut line to the object to be applied, the imaging unit photographs the tape-like material after application by the application unit, and the judgment unit judges the presence or absence of the adhesive tape within a plurality of areas set along the width direction of the adhesive tape before and after the application reference position, and judges whether the adhesive tape is properly positioned based on the judgment result.

[0014] The determination unit may convert the image into a grayscale image and detect the discontinuity.

[0015] The illumination section may be provided with the optical axis inclined at an angle of 60° to 85° with respect to a direction perpendicular to the application surface of the adhesive tape located at the application reference position.

[0016] The illumination unit may emit white light or green light.

[0017] The adhesive tape may be an anisotropic conductive film. Effect of the Invention

[0018] According to the present invention, it is possible to obtain an adhesive tape application device capable of automatically aligning the head of an adhesive tape. [Brief description of the drawings]

[0019] [Figure 1] 1 is a schematic configuration diagram of a bonding device according to an embodiment; [Diagram 2] FIG. 2 is a functional block diagram of a control unit. [Diagram 3] 5 is a flowchart showing an example of a leading edge alignment operation of the adhesive tape bonding device according to the embodiment. [Figure 4]1A is a diagram showing the feeding of a tape-shaped member; FIG. 1B is a diagram for explaining the leading end of an adhesive tape; FIG. 1C is a diagram showing the formation of a half-cut line; FIG. 1D is a diagram for explaining the pass / fail judgment of the position of the half-cut line; FIG. 1E is a diagram for explaining the discarding of adhesive tape; FIG. 1F is a diagram showing a state in which it is judged that there is adhesive tape downstream of the application reference position, and it is judged as defective; FIG. 1F is a diagram showing a state in which it is judged that there is no adhesive tape upstream of the application reference position, and it is judged as defective; FIG. 1G is a diagram showing a state in which it is judged that there is no adhesive tape downstream of the application reference position, and that there is adhesive tape upstream of the application reference position, and it is judged as good. [Diagram 5] 1A is a cross-sectional view showing how a tape-shaped material is photographed in a bonding device of a comparative example, and FIG. 1B is an image of the tape-shaped material obtained by the bonding device of the comparative example. [Figure 6] 1A is a cross-sectional view showing how a tape-shaped material is photographed by the adhering device of the embodiment, and FIG. 1B is an image of the tape-shaped material obtained by the adhering device of the embodiment. [Figure 7] 4 shows the inclination angle θ of the optical axis of the illumination unit with respect to the perpendicular line of the tape-shaped member, and the detection results of the break in the adhesive tape at that angle. [Figure 8] 1A is a schematic diagram showing a feed correction of the tape-shaped material when the half-cut line is shifted in front of the bonding reference position, and FIG. 1B is a schematic diagram showing a feed correction of the tape-shaped material when the half-cut line is shifted beyond the bonding reference position. [Figure 9] 5 is a flowchart showing an example of an operation of the adhesive tape adhering device to adhere to a substrate. [Figure 10] 1A and 1B are diagrams showing the adhering operation of an adhering device according to an embodiment. (a) shows a state in which the adhesive tape has been pre-positioned and the substrate has been set. (b) shows a state in which the tape has been half-cut. (c) shows a state in which the tape-shaped material has been fed. (d) shows a state in which the adhesive tape has been adhered to the substrate and the release tape has been peeled off. [Figure 11] 13 is a schematic diagram for explaining an arrangement of an illumination unit of a bonding device according to another embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] [Embodiment] An example of an embodiment of the present invention (hereinafter, referred to as an embodiment) will be specifically described with reference to the drawings. As shown in FIG. 1, the tape-shaped member 2 used in this embodiment is, for example, an adhesive tape 21 attached to a release tape 22. The adhesive tape 21 is, for example, an anisotropic conductive film (ACF). The release tape 22 is a tape that can be peeled off from the adhesive tape 21, and is formed of, for example, a resin film such as polyimide. The width of the tape-shaped member 2 that is generally used is about 0.5 to 3.5 mm.

[0021] [composition] 1 is a schematic diagram of a bonding device 1 according to an embodiment. The bonding device 1 is a device for bonding an adhesive tape 21 of a tape-shaped member 2 to an object to be bonded. The object to be bonded is, for example, a disposal plate 112 described below, or a substrate serving as a component of a flat panel display.

[0022] As shown in FIG. 1, the bonding device 1 includes a bonding section 11, a supply section 12, a recovery section 13, a transport section 14, a peeling section 15, a cutting section 16, an illumination section 17, an imaging section 18, and a control section 19.

[0023] [Adhesive part] The adhering section 11 adheres the adhesive tape 21 of the tape-shaped member 2 to an object to which the tape is to be adhered. The adhering section 11 has a pressure head 110 and a stage member 111.

[0024] The pressure head 110 heats and presses the tape-shaped material 2 against the object to be affixed by moving up and down by a lifting device (not shown). For this purpose, the pressure head 110 is provided with a heater (not shown) and the contact surface with the tape-shaped material 2 is heated to a predetermined temperature. Furthermore, a buffer member 110a is provided on the contact surface of the pressure head 110 with the tape-shaped material 2. This buffer member 110a is, for example, a sheet made of an elastic body, and prevents the adhesive tape 21 softened by heating from adhering to the pressure head 110. That is, in the tape-shaped material 2, the surface of the adhesive tape 21 opposite the release tape 22 becomes the surface to be affixed to the object to be affixed.

[0025] The stage member 111 is a member that supports the object to be attached from below when the tape-shaped member 2 is heated and pressed onto the object to be attached by the pressure head 110. The stage member 111 has, on its upper surface, a support surface 111a that is a flat surface that supports the object to be attached.

[0026] As described above, the attachment object placed on the stage member 111 is the waste plate 112 or the substrate that will become the product. For example, the unnecessary portion at the beginning of the adhesive tape 21 is attached to the waste plate 112. This waste plate 112 is, for example, a metal plate, has the same size as the substrate, and is placed on the support surface 111a of the stage member 111. Note that the waste plate 112 may be made of cloth tape, a plastic plate, or the like, instead of a metal plate. Alternatively, a cloth tape, a plastic plate, or the like may be provided on the waste plate 112 so as to be replaceable by adhering, or the like.

[0027] A reference application position 10 is set on the transport path along which the tape-shaped member 2 is transported to the application work position where application of the adhesive tape 21 is performed in the application unit 11. The reference application position 10 is a reference position for aligning a slit 20 in the adhesive tape 21 on the tape-shaped member 2, and in this case is the position of the upstream end of the pressure head 110 in the transport direction of the tape-shaped member 2. The slit 20 in the adhesive tape 21 is, for example, a leading portion of the adhesive tape 21 on the tape-shaped member 2, a half-cut line 20b (described later) formed by the cutting unit 16.

[0028] [Supply Department] The supply unit 12 supplies the tape-shaped material 2 to the bonding unit 11. The supply unit 12 has a supply reel 120, a tension mechanism 121, and a path roller 122. The supply reel 120 is a reel on which the tape-shaped material 2 is wound and which feeds out the tape-shaped material 2 by rotating.

[0029] The tension mechanism 121 applies tension to the tape-shaped material 2. The tension mechanism 121 is a pair of rollers arranged at a distance above and below to guide the movement of the tape-shaped material 2 pulled out from the supply reel 120. One roller is a fixed roller 121a that does not move up and down, and the other roller is a movable roller 121b that can move up and down. The movable roller 121b moves up and down by a lifting mechanism not shown. In other words, it moves in the direction of the black arrow in the figure.

[0030] The path rollers 122 are rollers that change the conveying direction of the tape-shaped material 2 from the tension mechanism 121 and send it out toward the cutting section 16 .

[0031] [Recovery Department] The recovery section 13 recovers the release tape 22 peeled off from the adhesive tape 21 adhered to the adhesion target in the adhering section 11. The recovery section 13 has a recovery reel 130 and a path roller 131.

[0032] The recovery reel 130 is a reel that winds up and recovers the release tape 22. The path roller 131 is a roller that changes the conveying direction of the release tape 22 from the adhering unit 11 side and sends it out toward the recovery reel 130.

[0033] [Transport section] The transport section 14 is disposed between the adhering section 11 and the recovery section 13, and transports the tape-shaped material 2 from the supply section 12 to the recovery section 13 via the adhering section 11. The transport section 14 has a pair of feed rollers 140 and a feed motor (not shown). The pair of feed rollers 140 sandwich the release tape 22, and move the tape-shaped material 2 from the supply reel 120 side to the recovery reel 130 side by rotation of the rollers. The feed motor is a drive source that rotates the feed roller 140. The feed motor has a rotating shaft connected to the feed roller 140, and the rotation shaft rotates about the axis by driving the motor, thereby rotating the feed roller 140 about the rotation axis.

[0034] The path along which the tape-shaped material 2 fed from the supply reel 120 passes through the two rollers 121a and 121b of the tension mechanism 121, the path roller 122, and the path roller 131 to the recovery reel 130 is the transport path of the tape-shaped material 2. To explain the positional relationship of each part, the supply unit 12 side is also referred to as the upstream side of the tape-shaped material 2, and the recovery unit 13 side is also referred to as the downstream side of the tape-shaped material 2. The downstream side of the tape-shaped material 2 with respect to the bonding reference position 10 is also referred to as the front, and the upstream side of the tape-shaped material 2 is also referred to as the rear.

[0035] [Peeled part] The peeling unit 15 peels off the release tape 22 from the adhesive tape 21 attached to the attachment object. The peeling unit 15 has peeling bars 150 and 151. The peeling bars 150 and 151 are, for example, round bars, and are members that come into contact with the release tape 22. The peeling bar 150 comes into contact with the surface of the release tape 22, i.e., the surface on the adhesive tape 21 side, and the peeling bar 151 comes into contact with the back surface of the release tape 22. The peeling bars 150 and 151 move horizontally from the downstream side to the upstream side of the attachment unit 11 (in the direction of the dotted arrow in FIG. 1) with the release tape 22 in contact therewith by a moving mechanism (not shown), as shown in FIG. 1, thereby peeling off the release tape 22 from the adhesive tape 21 pressed against the attachment object.

[0036] [Cutting part] The cutting unit 16 cuts the adhesive tape 21 of the tape-shaped member 2. This cutting unit 16 may further make an incision in the release tape 22 to the extent that it does not cut the release tape 22. Cutting the adhesive tape 21 in this manner will hereinafter be referred to as a half cut, and the line formed in the adhesive tape 21 by the cutting unit 16 will be referred to as a half cut line 20b.

[0037] The cutting section 16 is provided between the supply section 12 and the adhering section 11, and has a cutter 160 and a backup member 161. The cutter 160 is a member that contacts and cuts the adhesive tape 21, and is provided between the supply section 12 and the adhering section 11. The cutter 160 has a blade at its tip that moves toward and away from the backup member 161 by a lifting mechanism (not shown). The blade at the tip of the cutter 160 extends in the width direction of the tape-shaped member 2. The backup member 161 is a block having a rectangular parallelepiped shape. The backup member 161 has a flat surface 161a on the lower surface of the block that sandwiches the tape-shaped member 2 between the cutter 160 and the backup member 161 and contacts the release tape 22 in the horizontal direction. In this embodiment, the position of the cutting section 16 is set so that the distance between the cutter 160 and the adhering reference position 10 is shorter than the length of the adhesive tape 21 to be adhered to the substrate.

[0038] [Lighting section] The illumination unit 17 is disposed on the adhesive tape 21 side of the tape-shaped member 2, in the vicinity of the reference attachment position 10. Specifically, the illumination unit 17 is disposed below the tape-shaped member 2, and illuminates the tape-shaped member 2 from the adhesive tape 21 side.

[0039] The illumination unit 17 is provided such that its optical axis is directed toward the attachment reference position 10 and is oblique to the perpendicular line of the tape-shaped member 2. This perpendicular line is a straight line perpendicular to the surface of the tape-shaped member 2, more specifically, the above-mentioned attachment surface of the adhesive tape 21 in the tape-shaped member 2 positioned at the attachment reference position 10. When the tape-shaped member 2 is transported horizontally to the attachment reference position 10, the perpendicular line may be a line perpendicular to the horizontal direction. It is preferable that the optical axis of the illumination unit 17 is inclined by 60° to 85° with respect to the perpendicular direction of the attachment surface of the adhesive tape 21 positioned at the attachment reference position 10. The illumination unit 17 may be provided on the upstream side of the tape-shaped member 2 or on the downstream side of the tape-shaped member 2. For example, an LED that irradiates visible light can be used as the illumination unit 17, and among them, it is preferable to use an LED that emits white light or green light. In addition, the optical axis of the illumination unit 17 being directed toward the reference attachment position 10 means that the illumination unit 17 is arranged toward the reference attachment position 10, and the optical axis does not have to completely intersect with the reference attachment position 10 in the position shown in Figure 1.

[0040] [Imaging section] The imaging unit 18 images the tape-shaped member 2 at the attachment reference position 10. The imaging unit 18 is, for example, a camera. The imaging unit 18 is arranged on the adhesive tape 21 side of the tape-shaped member 2 with its optical axis aligned with the attachment reference position 10, and images the tape-shaped member 2 in a state in which the tape-shaped member 2 is illuminated from the adhesive tape 21 side by the illumination unit 17. Specifically, the imaging unit 18 is arranged below the tape-shaped member 2 and directly below the attachment reference position 10, and its optical axis is perpendicular to the tape-shaped member 2. That is, the attachment reference position 10 is included in the imaging range of the imaging unit 18, and when a slit 20 in the adhesive tape 21 enters the imaging range due to the feeding of the tape-shaped member 2, the imaging unit 18 images the tape-shaped member 2 including the slit 20. Note that the optical axis of the imaging unit 18 does not have to be perpendicular to the tape-shaped member 2. For example, the optical axis of the imaging unit 18 may be oblique at about 15° to the perpendicular to the tape-shaped material 2 when viewed from the transport direction of the tape-shaped material 2. It is not necessary for the optical axis of the imaging unit 18 to completely coincide with the attachment reference position 10 either, as long as the desired portion of the tape-shaped material 2 positioned at the attachment reference position 10 falls within the imaging range.

[0041] [Control Unit] The control unit 19 is a control device that controls each part of the bonding device 1. The control unit 19 can be configured, for example, by a dedicated electronic circuit or a computer that operates with a predetermined program. In other words, the control contents for the bonding unit 11, tension mechanism 121, transport unit 14, peeling unit 15, cutting unit 16, lighting unit 17, imaging unit 18, etc. are programmed and executed by a processing device such as a PLC or a CPU.

[0042] Fig. 2 is a functional block diagram of the control unit 19. As shown in Fig. 2, the control unit 19 has an adhesion control unit 190, a tension mechanism control unit 191, a peeling control unit 192, a cutting control unit 193, an illumination control unit 194, an imaging control unit 195, a determination unit 196, and a transport control unit 197.

[0043] The adhesion control unit 190 controls the heater and the lifting device provided in the adhesion unit 11, causes the heater to heat the pressure head 110, and causes the lifting device to lift and lower the heated pressure head 110. The tension mechanism control unit 191 controls the lifting mechanism provided in the tension mechanism 121, and applies tension to the tape-like material 2 by moving the movable roller 121b up and down.

[0044] The peeling control unit 192 controls the moving mechanism provided in the peeling unit 15, and horizontally moves the peeling bars 150, 151 to peel the adhesive tape 21 adhered to the disposal plate 112 from the release tape 22. The cutting control unit 193 controls the lifting mechanism provided in the cutting unit 16 to raise and lower the cutter 160.

[0045] The illumination control unit 194 controls the turning on and off of the illumination unit 17. The imaging control unit 195 controls the imaging unit .

[0046] The determination unit 196 determines the quality of the state of the cut surface, such as the quality of the position of the cut line 20 in the adhesive tape 21, based on the image of the tape-shaped member 2 obtained by the imaging unit 18. The determination unit 196 converts the image of the tape-shaped member 2 into a grayscale image and detects the position of the cut line 20 in the adhesive tape 21. The determination unit 196 then determines whether the detected cut line 20 is located within an allowable range of the attachment reference position 10. If the cut line 20 is within the allowable range, it is determined to be good, and if the cut line 20 is outside the allowable range, it is determined to be bad. Note that grayscaling refers to, for example, converting the brightness of an image into a multi-level pixel value according to the brightness, and is typically a conversion using 256 gradations from pixel value 0 (black) to pixel value 255 (white).

[0047] The judgment unit 196 detects half-cut lines 20b as cuts 20 based on the image of the tape-shaped member 2 obtained by the imaging unit 18, and judges whether the shape of the cut surface is good or bad. The shape of the cut surface of the half-cut line 20b is the shape of the incision made by the cutter 160 when the tape-shaped member 2 is viewed from the adhesive tape 21 side. The half-cut line 20b is judged to be good, for example, when it is detected as a straight line with a large (bright) pixel value in the width direction of the tape-shaped member 2, and is judged to be bad when the part with the large pixel value is not straight but oblique, or when it is uneven such as meandering or chipping.

[0048] Furthermore, the determination unit 196 determines whether the alignment of the adhesive tape 21 is good or bad, based on the presence or absence of the adhesive tape 21 in the regions before and after the attachment reference position 10. The alignment of the adhesive tape 21 refers to setting a new supply reel 120 and aligning the half-cut line 20b formed on the leading end of the leading adhesive tape 21 that can be adhered to the substrate to be the product, within a predetermined range including the attachment reference position 10, and the predetermined range is a range within which the half-cut line 20b is allowed to be aligned with the attachment reference position 10. The determination unit 196 may determine the presence or absence of the adhesive tape 21 by further dividing each of the regions before and after the attachment reference position 10 into a plurality of small regions.

[0049] When the determining unit 196 determines that the position of the cut 20 is defective, the transport control unit 197 calculates the distance (deviation) between the cut 20 in the adhesive tape 21 and the adhesion reference position 10. That is, when the position of the cut 20 is defective, the position of the cut 20 deviates from the adhesion reference position 10 by more than the allowable range, so that it is necessary to correct the position of the tape-shaped material 2 so that the position of the cut 20 is within the allowable range. Therefore, the transport control unit 197 calculates the distance between the adhesion reference position 10 and the position of the cut 20 based on the image captured by the imaging unit 18, and generates a control signal for driving the feed motor based on the calculated distance. That is, this control signal is a signal for feeding the tape-shaped material 2 by the calculated distance so that the half-cut line 20b comes to the adhesion reference position 10, and is output to the feed motor.

[0050] [Operation] The operation of the adhesive tape adhering device 1 having the above-mentioned configuration will be described.

[0051] [Adhesive tape head placement] FIG. 3 is a flow chart showing an example of the leading edge alignment operation of the adhesive tape 21 of the adhesive tape adhering device 1 according to the embodiment.

[0052] It is assumed that a new supply reel 120 is set in the supply section 12, the tape-shaped material 2 is pulled out from the supply reel 120, and wound around the recovery reel 130 via the tension mechanism 121, the path roller 122, the peeling section 15, the feed roller 140, and the path roller 131. It is also assumed that the downstream side of the adhesive tape 21 in this tape-shaped material 2 is peeled off by the operator before being wound, and the leading portion 20a, which is the slit 20 of the adhesive tape 21, is located upstream of the imaging section 18, i.e., the application reference position 10. In other words, the adhesive tape 21 is peeled off downstream of the leading portion 20a, and the surface of the release tape 22 is exposed. The shape of the leading portion 20a of the adhesive tape 21 may be any shape since it is peeled off by the operator. For example, it may be a line parallel to the width direction of the tape-shaped material 2, a line inclined relative to the width direction of the tape-shaped material 2, a meandering line with peaks and valleys in the width direction of the tape-shaped material 2, or a line with peaks and valleys.

[0053] In addition, it is assumed that a discarding plate 112 is placed on the support surface 111a of the stage member 111 in advance.

[0054] As shown in FIG. 3, the illumination control unit 194 turns on the illumination unit 17 to illuminate the tape-shaped material 2 including the application reference position 10 (step S01). As shown in FIG. 4(a), the transport unit 14 feeds the tape-shaped material 2 at a predetermined pitch (step S02), and the imaging unit 18 and the determination unit 196 determine whether the position of the leading portion 20a (slit 20) of the adhesive tape 21 is good or bad (step S03). That is, when the tape-shaped material 2 is fed by the transport unit 14, the imaging unit 18 photographs the tape-shaped material 2 in an imaging range including the application reference position 10, and the determination unit 196 converts the image obtained by the imaging unit 18 into a grayscale image, and as shown in FIG. 4(b), it determines whether the leading portion 20a of the adhesive tape 21 is included in a predetermined range R1 including the application reference position 10 based on the difference in shading. The part where the adhesive tape 21 is present is dark, and the part where the adhesive tape 21 is not present is bright, and the boundary between light and dark is the leading portion 20a. The predetermined range R1 is, for example, an inspection area set within the imaging range.

[0055] The feed pitch of the conveying unit 14 is equal to or shorter than the length of the predetermined range R1 in the conveying direction of the tape-shaped material 2. If the leading portion 20a is not detected by the determining unit 196 (NO in step S03), the process returns to step S02, and steps S02 and S03 are repeated until the leading portion 20a is detected.

[0056] When the leading portion 20a is detected by the determination unit 196 (YES in step S03), the cutting control unit 193 raises the cutter 160 to half-cut the tape-shaped material 2 while stopping the tape-shaped material 2 at the position where the leading portion 20a is detected (step S04), and as shown in FIG. 4(c), the adhesive tape 21 is cut to form a half-cut line 20b as the cut line 20. Then, the transport unit 14 feeds the tape-shaped material 2 by the distance between the cutting unit 16 (cutter 160) and the attachment reference position 10 (step S05). Next, the imaging unit 18 photographs the tape-shaped material 2, and the determination unit 196 detects whether or not there is a half-cut line 20b (step S06). If the half-cut line 20b is not detected (NO in step S06), the process returns to step S04.

[0057] When the half-cut line 20b is detected (YES in step S06), the determination unit 196 determines whether or not the detected half-cut line 20b is within an allowable range including the adhesion reference position 10, as shown in FIG. 4(d) (step S07). When the half-cut line 20b is not within the allowable range (NO in step S07), a feed correction of the tape-shaped material 2 is performed. That is, the conveyance control unit 197 calculates the distance between the half-cut line 20b and the adhesion reference position 10 based on the position of the half-cut line 20b recognized within the predetermined range R1 and the position of the adhesion reference position 10 (step S08), and conveys the tape-shaped material 2 by the calculated distance so that the half-cut line 20b comes to the adhesion reference position 10 by the conveyance unit 14 (step S09), and returns to step S07.

[0058] When the half-cut line 20b is within the allowable range (YES in step S07), the portion of the adhesive tape 21 from the leading portion 20a to the half-cut line 20b is located between the pressure head 110 and the waste plate 112. In this state, the preheated pressure head 110 presses down the tape-shaped member 2, and the unnecessary adhesive tape 21 downstream of the half-cut line 20b is waste-shot onto the waste plate 112 (step S10, see FIG. 4(e)). That is, the attachment control unit 190 lowers the preheated pressure head 110, and the unnecessary adhesive tape 21 from the leading portion 20a to the half-cut line 20b is attached to the waste plate 112, and the pressure head 110 is raised. Thereafter, the peeling control unit 192 horizontally moves the peeling bars 150 and 151 toward the attachment unit 11, and the release tape 22 is peeled off from the adhesive tape 21 pressed against the waste plate 112 (step S11).

[0059] After the release tape 22 is peeled off, the tape-shaped member 2 is photographed by the imaging unit 18 (step S12). At this time, since the tape-shaped member 2 is not fed, the position of the slit 20 of the adhesive tape 21 remaining on the upstream side of the attachment reference position 10 remains at the attachment reference position 10. The determination unit 196 converts the image obtained by the imaging unit 18 into a grayscale image, and determines the presence or absence of the adhesive tape 21 in each of the small regions R11 to R16 as a total of six inspection areas, three of which are set before and after the attachment reference position 10, as shown in Figs. 4(f1) and (f2) (step S13). The three small regions R11, R12, R13 and R14, R15, R16 before and after the attachment reference position 10 are set in advance so as to be arranged side by side in the width direction of the tape-shaped member 2. The presence or absence of the adhesive tape 21 is determined, for example, as follows: if the ratio of pixels having a predetermined pixel value or more is a predetermined ratio or more in each small region R11 to R16, in other words, if the ratio of pixels having a pixel value less than the predetermined pixel value is less than the predetermined ratio, it is determined that the adhesive tape 21 is not present in the small region R11 to R16, and if the ratio of pixels having a predetermined pixel value or more is less than the predetermined ratio, in other words, if the ratio of pixels having a pixel value less than the predetermined pixel value is equal to or more than the predetermined ratio, it is determined that the adhesive tape 21 is present in the small region R11 to R16. In this way, the determination unit 196 determines whether the head alignment is good or bad by determining whether the state (shape) of the tip (half-cut line 20b) of the adhesive tape 21 remaining on the upstream side after the unnecessary adhesive tape 21 is peeled off is good or bad.

[0060] 4(f1), when the determination unit 196 determines that the adhesive tape 21 is present in at least one of the small regions R14 to R16 in front of (downstream of) the application reference position 10 (NO in step S14), the process returns to step S04 as a head alignment failure. In this case, it is considered that when the unnecessary adhesive tape 21 is peeled off, a part of the adhesive tape 21 remains on the release tape 22 without being peeled off, resulting in a peeling failure.

[0061] On the other hand, as shown in FIG. 4(f2), when it is determined that the adhesive tape 21 is not present in any of the small regions R14 to R16 located in front of (downstream side) the sticking reference position 10 (YES in step S14) and when it is determined that the adhesive tape 21 is not present in at least one of the small regions R11 to R13 located behind (upstream side) the sticking reference position 10 (NO in step S15), the process returns to step S04 as a head alignment failure. In this case, it is considered that when peeling off the unnecessary adhesive tape 21, a part of the leading end of the upstream adhesive tape 21, which is the leading adhesive tape 21, is peeled off together. This is considered to be caused by a defective half cut by the cutter 160, and the unnecessary adhesive tape 21 and a part of the leading adhesive tape 21 are connected at the half cut line 20b.

[0062] Furthermore, as shown in FIG. 4(g), if it is determined that there is no adhesive tape 21 in any of the small regions R14 to R16 located in front of (downstream of) the reference adhesion position 10 (YES in step S14), and if it is determined that there is adhesive tape 21 in any of the small regions R11 to R13 located behind (upstream of) the reference adhesion position 10 (YES in step S15), it is determined that the head has been aligned and the process ends.

[0063] It is also possible that the process returns to step S04 due to a NO judgment in step S06, step S14, or step S15, and the process of again making a NO judgment in the next step S06, step S14, or step S15 is repeated. In such a case, a step for judging the number of repetitions may be set before step S06 or step S14, and when the set number of repetitions has been performed, the cueing operation may be interrupted as an error, and an alarm or the like may be used to notify the operator of the abnormality. In such a case, the aforementioned half-cut defect by the cutter 160 may be one of the causes. Therefore, the control unit 19 may be configured to prompt the user to perform maintenance work such as cleaning or replacing the cutter 160 by using an alarm.

[0064] [Effect] The operation of the sticking device 1 of the embodiment will be described with reference to Figs. 5 to 8, showing a comparative example.

[0065] (Inclination of lighting part) Fig. 5(a) is a cross-sectional view showing how a tape-shaped material 2 is photographed by the bonding device of the comparative example. Fig. 5(b) is an image of the tape-shaped material 2 obtained by the bonding device of the comparative example. However, a graph of the pixel values ​​for each position in the image is superimposed on the image. The pixel values ​​are expressed in 256 gradations, with black being 0 and 255 being white.

[0066] As shown in Figure 5 (a), a half mirror M is provided inside the imaging unit 18, and the optical axis of the illumination L is directed toward the half mirror M. The light of the illumination L is reflected by the half mirror M, and the light of the illumination L is incident on the tape-shaped material 2 from a direction perpendicular to the tape-shaped material 2 as coaxial light parallel to the optical axis of the imaging unit 18.

[0067] 5(b), there was almost no difference between the pixel values ​​of the adhesive tape 21 and the release tape 22. This made it difficult to detect the break 20 in the adhesive tape 21.

[0068] Thus, it is clear that simply providing the illumination L makes it difficult to detect the break 20 in the adhesive tape 21.

[0069] Fig. 6(a) is a cross-sectional view showing the state of photographing the tape-shaped material 2 in the adhesion device 1 of the embodiment. Fig. 6(b) is an image of the tape-shaped material 2 obtained by the adhesion device 1 of the embodiment. However, a graph of the pixel values ​​for each position in the image is superimposed on the image. The pixel values ​​are expressed in 256 gradations, with black being 0 and 255 being white.

[0070] As shown in FIG. 6(a), the optical axis of the illumination unit 17 is oblique to the perpendicular line of the tape-shaped member 2, and the optical axis of the imaging unit 18 is perpendicular to the tape-shaped member 2. By configuring in this way, as shown in FIG. 6(b), a large difference occurs in the pixel values ​​of the adhesive tape 21 and the release tape 22, and the contrast between the area with the adhesive tape 21 and the area without the adhesive tape 21 becomes clear. It is presumed that this is due to the shape of the fine irregularities on the surface of the release tape 22 and the shape of the fine metal particles contained in the adhesive tape 21. That is, the metal particles of the adhesive tape 21 are almost spherical, and the amount of diffused light entering the imaging unit 18 does not change significantly whether the incident light from the illumination unit 17 is coaxial or oblique. In contrast, the unevenness of the surface of the release tape 22 is random, and therefore, it is presumed that the amount of diffused light entering the imaging unit 18 is increased by obliquely incident light from the illumination unit 17. 6, for example, the angle θ at which the optical axis of the illumination unit 17 intersects with the perpendicular line to the tape-shaped member 2 is set to 75°, and the pixel value of the area where the adhesive tape 21 is present is approximately 157, while the pixel value of the area where the adhesive tape 21 is not present is approximately 97. In this way, the shading difference is 50 or more, and the break 20 in the adhesive tape 21 can be stably detected.

[0071] Therefore, the inventors conducted an experiment to investigate the relationship between the angle of the optical axis of the illumination unit 17 and the amount of light entering the imaging unit 18. FIG. 7 shows the inclination angle θ of the optical axis of the illumination unit 17 with respect to the perpendicular line of the tape-shaped member 2 and the detection result of the gap 20 in the adhesive tape 21 at the angle. The detection result was obtained by using a white LED (model: SBR-15-50W) manufactured by Seiwa Optical Manufacturing Co., Ltd. as the illumination unit 17, a camera (model: FZ-S) manufactured by Omron Corporation as the imaging unit 18, and setting the distance between the tape-shaped member 2 and the imaging unit 18 to 100 mm. The tape-shaped member 2 to be photographed had the gap 20 in the adhesive tape 21 parallel to the width direction of the tape-shaped member 2.

[0072] As shown in Fig. 7, detection of the gap 20 was attempted by changing the inclination angle θ to 30°, 45°, 60°, 75°, 85°, and 90°. As a result, when the inclination angle θ was 30°, 45°, and 90°, the gap 20 could not be detected satisfactorily. On the other hand, when the inclination angle θ was 60°, 75°, and 85°, the gap 20 could be detected satisfactorily. In other words, the difference in pixel value between the area with the adhesive tape 21 and the area without the adhesive tape 21 was large, at 50 or more, and the accuracy of the detection of the presence or absence of the adhesive tape 21 was improved.

[0073] In this way, by setting the inclination angle θ to 60° to 85°, the accuracy of determining the presence or absence of the adhesive tape 21 can be improved in common to detection of the leading portion of the adhesive tape 21, detection of the half-cut line 20b formed on the adhesive tape 21, and detection of the presence or absence of the adhesive tape 21 before and after the reference application position 10.

[0074] (Feed correction of tape-like material) The following describes the feed correction of the tape-shaped material 2. As described above, the distance between the cutting unit 16 and the adhesion reference position 10 is predetermined, and after the half-cut line 20b is formed, the tape-shaped material 2 is fed by the transport unit 14 and the transport control unit 197 by that distance, so that the half-cut line 20b comes to the adhesion reference position 10.

[0075] However, in reality, an error may occur in the feed amount of the tape-shaped material 2 due to a rotation error of the feed motor or feed roller 140 or expansion and contraction of the tape-shaped material 2. The narrower the width of the tape-shaped material 2, the more likely it is to stretch even with a constant tension, and the more likely it is to get caught on the rollers, etc. Therefore, the tape-shaped material 2 may undergo elongation specific to each type. Thus, when an error occurs in the feed amount of the tape-shaped material 2, the application error in the feed direction of the adhesive tape 21 becomes large.

[0076] Therefore, in this embodiment, the imaging unit 18 and the determination unit 196 determine whether the half-cut line 20b is located within an allowable range of the adhesion reference position 10, and if the half-cut line 20b is outside the predetermined range, the transport control unit 197 calculates the distance between the half-cut line 20b of the adhesive tape 21 and the adhesion reference position 10, and sets a correction amount for feeding the tape-shaped material 2 by the transport unit 14 so that the half-cut line 20b comes to the adhesion reference position 10 by that distance. During the adhesion operation described below, the tape-shaped material 2 is fed to the adhesion reference position 10 by a feed amount including the correction amount.

[0077] That is, as shown in Fig. 8(a), when the feeding of the tape-shaped material 2 causes the half-cut line 20b to shift before the reference application position 10, the tape-shaped material 2 is fed toward the application section 11 by the shifted distance D1. On the other hand, as shown in Fig. 8(b), when the feeding of the tape-shaped material 2 causes the half-cut line 20b to shift beyond the reference application position 10, the tape-shaped material 2 is fed back toward the cutting section 16 by the shifted distance D2.

[0078] In this way, the deviation between the half-cut line 20b and the reference application position 10 is detected, and the feed of the tape-shaped material 2 is corrected to eliminate the deviation, so that the head of the adhesive tape 21 can be accurately positioned, and as a result, the adhesive tape 21 can be accurately applied to the substrate provided in the application portion 11.

[0079] [Adhesion operation] Fig. 9 is a flow chart showing an example of the operation of the adhering device 1 to adhere the adhesive tape 21 to the substrate. Fig. 10 is a diagram showing the adhering operation of the adhering device 1.

[0080] 10(a), it is assumed that the slit 20 (half-cut line 20b) in the adhesive tape 21 is located at the application reference position 10 and the head positioning of the adhesive tape 21 is complete. In other words, the cutter 160 has been inspected during the head positioning operation, and the half-cut line 20b that will become the slit 20 is normally formed by the cutting section 16 so as to be parallel to the width direction of the tape-shaped material 2. In addition, no adhesive tape 21 remains downstream of the slit 20, and the adhesive tape 21 does not adhere to members that come into contact with the tape-shaped material 2, such as the feed roller 140, preventing poor conveyance of the tape-shaped material 2.

[0081] Also, instead of the waste plate 112, a substrate 300 for a product, for example, as a component constituting a flat panel display, is placed on the support surface 111a of the stage member 111. A desired length of adhesive tape 21 is attached to the substrate 300. For convenience, it is assumed here that the adhesive tape 21 is attached to the entire substrate 300 in the transport direction, and the distance between the cutting section 16 and the attachment reference position 10 is equal to the length of the substrate 300 and the length of the pressure head 111.

[0082] As shown in FIG. 10(b), first, the cutting unit 16 half-cuts the tape-shaped member 2 (step S21). Then, as shown in FIG. 10(c), the transport unit 14 feeds the tape-shaped member 2 by the distance between the cutter 160 and the attachment reference position 10 (step S22). This feed causes the half-cut line 20b formed in step S21 to coincide with the attachment reference position 10. Thereafter, the stage member 111 is moved so that the edge of the substrate 300 to which the adhesive tape 21 is attached is positioned under the tape-shaped member 2. Then, the preheated pressure head 110 is lowered, and the substrate 300 and the tape-shaped member 2 are sandwiched and pressure-bonded between the pressure head 110 and the stage member 111, so that the adhesive tape 21 of the tape-shaped member 2 is attached to the substrate 300 (step S23). Thereafter, the pressure head 110 is raised and the peeling portion 15 is moved horizontally toward the adhesion portion 11, thereby peeling the release tape 22 from the adhesive tape 21 adhered to the substrate 300 (step S24), as shown in FIG. 10(d), and returning the peeling portion 15 to its original position.

[0083] Thereafter, when the adhesive tape 21 is to be applied to a substrate 300 to which the adhesive tape 21 has not yet been applied (YES in step S25), the substrate on the stage member 111 to which the adhesive tape 21 has already been applied is replaced with a new substrate 300 to which the adhesive tape 21 has not yet been applied, and the process returns to step S21.

[0084] On the other hand, if the adhesive tape 21 is not to be applied to the substrate 300 to which the adhesive tape 21 is not yet applied (NO in step S25), the process ends. Note that in step S22 for feeding the tape-shaped material 2, a feed correction of the tape-shaped material 2 may be performed in the same manner as in steps S06 to S09 described above.

[0085] [effect] The adhesive tape 21 application device 1 of the embodiment includes a supply unit 12 which supplies a tape-like member 2 having the adhesive tape 21 applied to a release tape 22, an application unit 11 which applies the application surface of the adhesive tape 21 opposite the release tape 22 to an object to be applied, a transport unit 14 which sends the tape-like member 2 from the supply unit 12 to the application unit 11, an illumination unit 17 which is arranged on the adhesive tape 21 side of the tape-like member 2 and has an optical axis which is directed to an application reference position 10 set for the application unit 11 and is obliquely arranged at a preset angle to the perpendicular direction of the application surface of the adhesive tape 21 positioned at the application reference position 10, an imaging unit 18 which is arranged on the adhesive tape 21 side of the tape-like member 2 with its optical axis aligned with the application reference position 10 and which images the tape-like member 2 positioned at the application reference position 10, and a judgment unit 196 which judges whether the state of the cut 20 in the adhesive tape is good or bad based on the image of the tape-like member 2 obtained by the imaging unit 18.

[0086] This allows the gap 20 in the adhesive tape 21 to be automatically recognized, so that the gap of the adhesive tape 21 can be automatically aligned without the need to manually position the edge of the adhesive tape 21. That is, if the illumination unit L is provided so that the optical axis is perpendicular to the tape-shaped member 2 as in the above comparative example, the image of the tape-shaped member 2 becomes unclear, making it difficult to detect the gap 20. In response to this, the inventors of the present invention have conducted extensive research and have found that by providing the illumination unit 17 at an angle to the perpendicular line of the tape-shaped member 2, the contrast of the image of the tape-shaped member 2 becomes clear. According to this embodiment based on this knowledge, the edge of the adhesive tape 21 can be automatically aligned.

[0087] The tape-shaped member 2 includes a cutter 160 provided between the supply unit 12 and the adhering unit 11, and a cutting unit 16 that cuts the adhesive tape 21 of the tape-shaped member 2 to form a half-cut line 20b that becomes a cut 20. The conveying unit 14 feeds the tape-shaped member 2 so that the half-cut line 20b is at the adhering reference position 10. The imaging unit 18 images the tape-shaped member 2 including the half-cut line 20b. The judgment unit 196 detects the half-cut line 20b from the image obtained by the imaging unit 18 and judges whether the shape of the cut surface of the half-cut line 20b is good or bad.

[0088] This makes it possible to manage wear and tear on the cutter 160. That is, if the half-cut line 20b is determined to be defective, it is considered that the blade of the cutter 160 is worn out. In this case, for example, a display device such as a display and a notification means such as a speaker can be connected to the control unit 19, and the operator can be prompted to replace the cutter 160 on the screen or by voice.

[0089] The determining section 196 determines whether the detected half-cut line 20b is within the allowable range of the attachment reference position 10 or not.

[0090] This makes it possible to improve the accuracy of aligning the half-cut line with respect to the attachment reference position 10.

[0091] The tape-shaped member 2 is fed by a conveying control unit 197 that calculates the distance between the half-cut line 20b and the reference adhesion position 10, and when the judgment unit 196 judges that the half-cut line 20b is outside the allowable range, the conveying unit 14 feeds the tape-shaped member 2 so that the half-cut line 20b is positioned at the reference adhesion position 10 based on the distance calculated by the conveying control unit 197.

[0092] This makes it possible to improve the accuracy of the alignment of the adhesive tape 21, and to improve the accuracy of the application position of the adhesive tape 21 on the substrate, which is the object to be applied, in the running direction of the tape-shaped member 2.

[0093] The adhering unit 11 adheres the adhesive tape 21 downstream of the half-cut line 20b to the object to be adhered, specifically the discard plate 112, the imaging unit 18 photographs the tape-like material 2 after adhering by the adhering unit 11, and the judgment unit 196 judges the presence or absence of the adhesive tape 21 within multiple areas set along the width direction of the adhesive tape 21 before and after the adhering reference position 10, and based on the judgment result, judges whether the adhesive tape 21 is properly positioned.

[0094] This makes it possible to achieve a state in which the adhesive tape 21 does not remain in front of the sticking reference position 10 and the adhesive tape 21 is located behind the sticking reference position 10, thereby enabling accurate positioning of the beginning of the adhesive tape 21. Also, it is possible to prevent poor conveyance of the tape-like member 2 caused by the adhesive tape 21 remaining on the release tape 22 being caught in the rollers of the conveyance section 14 or the like located downstream of the sticking section 11.

[0095] The determination unit 196 converts the image into a grayscale image and detects the cut 20. This allows not only the presence or absence of the cut 20 but also the quality of the cut 20 to be accurately detected. For example, when the cut 20 is a half-cut line 20b, it is considered that the adhesive tape 21 is not completely cut due to dirt on the cutting edge of the cutter 160 or chipped blade, and the adhesive tape 21 is partially left with a thickness thinner than the original thickness and appears as a dotted line. When this image is binarized, it may be erroneously detected that the half-cut line 20b is normally formed. That is, when the remaining adhesive tape 21 is thin and the pixel value of this adhesive tape 21 portion is on the side of the binarization threshold value where the adhesive tape 21 is not present, the half-cut line 20b is detected as good. Even in such a situation, by converting the image into a grayscale image, the adhesive tape 21 on the half-cut line 20b remains in the image and can be detected as defective.

[0096] The illumination unit 17 is provided with its optical axis inclined at an angle of 60° to 85° with respect to the perpendicular to the tape-shaped material 2. This makes it possible to improve the contrast of the image of the tape-shaped material 2 obtained by the imaging unit 18 and the determination unit 196, and to accurately detect the cut 20.

[0097] The illumination unit 17 is adapted to emit white light or green light. This makes it possible to make the contrast of the image of the tape-shaped member 2 obtained by the imaging unit 18 and the determination unit 196 clearer, and the cut 20 can be detected accurately. In particular, when the illumination unit 17 emitting white or green light and the adhesive tape 21 are anisotropic conductive films, the contrast becomes clearer, improving the accuracy of detecting the cut 20 and, as a result, improving the accuracy of locating the cut.

[0098] [Other embodiments] The present invention is not limited to the above-described embodiment, but also includes other embodiments described below. The present invention also includes a combination of all or any of the above-described embodiment and the other embodiments described below. Furthermore, these embodiments can be omitted, replaced, or modified in various ways without departing from the scope of the invention, and such modifications are also included in the present invention.

[0099] In the above embodiment, the illumination unit 17 is provided on the upstream side of the tape-shaped material 2 with respect to the reference attachment position 10, but as shown in Fig. 11, it may be provided on the downstream side of the tape-shaped material 2. In this case, after the adhesive tape 21 is trimmed, the cross section of the slit 20b of the adhesive tape 21 is exposed to the illumination unit 17 side, so that the cross section is directly illuminated and the contrast of the image of the tape-shaped material 2 becomes clear. Although not limited to the following mechanism, it is considered that the light reflected by the end face of the slit 20b and the metal particles in the adhesive tape 21 is also reflected by the release tape 22 downstream of the slit 20b and enters the imaging unit 18, and the amount of light reflected near the slit 20b increases.

[0100] In addition, in the above embodiment, the feed amount of the tape-like material 2 is corrected by the conveying unit 14, but a separate moving mechanism for moving the adhering unit 11 may be provided, and the adhering reference position 10 may be aligned with the half-cut line 20b by moving the adhering unit 11 using the moving mechanism.

[0101] In the above embodiment, the adhesion reference position 10 was set at a position that coincides with the upstream end of the pressure head 110, but it may also be set at another position, for example, a position upstream of the upstream end of the pressure head 110.

[0102] In the above embodiment, when a new tape-shaped material 2 is set in the bonding device 1, the slit 20 which becomes the leading portion of the adhesive tape 21 is formed in an arbitrary shape by the operator, but the slit 20 may be formed parallel to the width direction of the tape-shaped material 2 at the time of setting. In this case, the above steps S01 to S03 are sufficient for the leading operation of the adhesive tape 21. [Explanation of symbols]

[0103] 1. Adhesive tape application device 10 Adhesion reference position 11 Adhesive part 110 Pressure Head 111 Stage parts 111a Support surface 112 Disposal Plate 12 Supply section 120 Supply Reel 121 Tension mechanism 121a Fixed roller 121b Movable roller 122 Path Roller 13 Collection Department 130 Recovery Reel 131 Path Roller 14 Conveyor section 140 Feed roller 15 Peeling section 150, 151 Peeling rod 16 Cut section 160 Cutter 161 Backup parts 161a flat surface 17 Lighting Department 18 Imaging section 19 Control section 190 Adhesion control section 191 Tension mechanism control section 192 Peeling control section 193 Cutting control section 194 Lighting control unit 195 Imaging control section 196 Judgment section 197 Transport control section 2. Tape-shaped material 20 Adhesive tape break 20a Leading edge of adhesive tape 20b half cut line 21 Adhesive Tape 22 Release tape 300 Substrates

Claims

1. a supply unit that supplies a tape-shaped member having an adhesive tape attached to a release tape; an attachment portion that attaches an attachment surface of the adhesive tape opposite to the release tape to an object to be attached; a conveying section that conveys the tape-shaped material from the supply section to the bonding section; an imaging section that is disposed on the adhesive tape side of the tape-shaped member and that images the tape-shaped member positioned at a reference adhesion position that is set with respect to the adhesion section; a determination unit that determines whether a state of the cut in the adhesive tape is good or bad based on the image of the tape-shaped material obtained by the imaging unit; Equipped with the determining unit determines the presence or absence of the adhesive tape in a plurality of areas set along a width direction of the adhesive tape before and after the application reference position, and determines whether a break in the adhesive tape is in a good or bad state based on the determination result; An adhesive tape application device comprising:

2. a cutting unit having a cutter provided between the supply unit and the adhering unit, the cutting unit cutting the adhesive tape of the tape-shaped member to form a half-cut line serving as the cut; the transport unit transports the tape-shaped material so that the half-cut line is located at the application reference position; the imaging unit images the tape-shaped material including the half-cut line, the determination unit detects the half cut line from the image obtained by the imaging unit, and determines whether or not a shape of a cut surface of the half cut line is good; 2. The adhesive tape application device according to claim 1,

3. the determination unit determines whether the detected half-cut line is within an allowable range including the attachment reference position; 3. The adhesive tape application device according to claim 2,

4. a conveyance control unit that calculates a distance between the half-cut line and the application reference position, when the determination unit determines that the half-cut line is out of the allowable range, the transport unit transports the tape-shaped material so as to position the half-cut line at the attachment reference position based on the distance calculated by the transport control unit; 4. The adhesive tape application device according to claim 3,

5. the adhering section adheres the adhesive tape downstream of the half-cut line to the object to be adhered, the imaging unit captures an image of the tape-shaped material after it has been adhered by the adhering unit; 5. The adhesive tape application device according to claim 2, wherein

6. a lighting unit disposed on the adhesive tape side of the tape-shaped member, the lighting unit having an optical axis directed to the reference application position and obliquely intersecting at a preset angle with a normal to the application surface of the adhesive tape located at the reference application position; 2. The adhesive tape application device according to claim 1,

Images