JP2016074538A - Tape sticking unit, tape sticking method and tape sticking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tape sticking device capable of suppressing deterioration of sticking accuracy, simply constituting a tape sticking mechanism, and shortening the minimum sticking length.SOLUTION: A tape sticking unit 20 is equipped with: a tape holding part 25 of which the tape holding state for positioning and holding an adhesive tape at a holding position and the tape release state for movably guiding the adhesive tape can be switched, and which is movable between a retracting position and an advancing position; a tape sticking mechanism 28 comprising a tape sticking roller 28a provided to advance or retreat to a surface 18a to be stuck, and capable of sticking a tape tip part having a free end which is not restrained projected from the tape holding part at the advancing position to the surface to be stuck at the sticking position by advancing the tape sticking roller to the surface to be stuck; tape cutting means 29 capable of cutting the adhesive tape at a cutting position between the holding position and the sticking position; and control means for controlling the tape holding part, the tape sticking mechanism, and the tape cutting means.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a tape sticking unit, a tape sticking method, and a tape sticking device, and more particularly, to a tape sticking mechanism of a tape sticking device suitable for sticking tapes of various widths, materials, and lengths to an object to be stuck.

  In general, various tape applicators for adhering an adhesive tape have been developed, and are used, for example, in a semiconductor masking tape application process. In this type of tape applicator, in general, by moving on the surface of an object to be applied, the adhesive tape is applied onto the surface with an application roller while pulling out the adhesive tape. When is attached, the root portion is cut by a built-in cutter, and the operation is performed to complete the attaching operation.

  In such a device, it is necessary to guide the adhesive tape to a pasting roller or the like at the start of the pasting operation. For this reason, for example, in the device described in the following Patent Document 1 or the like, the pulled out adhesive tape The tip edge is held by vacuum suction on the outer peripheral surface of the sticking roller 40 disposed at the standby position, and the sticking roller 40 is lowered onto the surface of the object to be stuck to start sticking. Moreover, in the apparatus described in the following patent document 2, the front end portion of the adhesive tape is held in a state of being inserted into the application head 13 having a vacuuming function, and the application head 13 is initially operated to operate the adhesive tape. The leading edge is temporarily attached by an initial bonding rod 14 different from the attaching roller 15. On the other hand, in the apparatus described in Patent Document 3 below, the tip of the adhesive tape is pinched by the claw 71 of the chuck 70 provided separately from the sticking mechanism, pulled out, and then attached to the object to be pasted by the tape suction cylinder 75. To be pressed against. Further, in the apparatus described in Patent Document 4 below, a suction head 37 that sucks and holds the tip of the tape is provided separately from the tape pressing roll 41.

JP 2006-111376 A JP-A-11-292385 JP 2011-51788 A JP-A-8-169602

  However, in the tape applicator described in Patent Document 1 above, the leading edge of the drawn adhesive tape is held on the outer peripheral surface of the adhering roller 40 by vacuum suction. There is a problem that it is difficult to increase the accuracy of the position and direction of application of the adhesive tape as a result of misalignment depending on the suction mode of the leading edge. In particular, if the vacuum suction force is weakened, the holding force of the adhesive tape will be insufficient, and it will be easy to cause misalignment due to external force. Conversely, if the vacuum suction force is too strong, the action of the suction force will vary widely when suctioning the adhesive tape. Therefore, the holding position is liable to shift. Also, when using a wide adhesive tape, or when the base material of the adhesive tape is highly extensible, the posture of holding the adhesive tape on the outer peripheral surface of the application roller due to the vacuum suction force due to the twisting or stretching of the tape Since the holding position is more easily displaced, a problem occurs in the pasting accuracy. Such a problem similarly exists in the apparatus described in Patent Documents 2 to 4 in that a vacuum suction force is used.

  On the other hand, in each of the above conventional tape applicators, in addition to the applicator roller, the front end of the tape, such as a press roller used at the time of tape cutting, an initial adhesive rod used at the start of initial application, a tape suction cylinder, a suction head, etc., is held. There is a problem that a special mechanism for temporarily pressing the object to be stuck is necessary, and the structure of the tape sticking unit becomes complicated by this mechanism. Furthermore, in the sticking method using the special mechanism as described above, there is a problem that it is difficult to shorten the minimum sticking length of the adhesive tape due to the dimensional restriction of the sticking technique.

  Therefore, the present invention solves the above problems, and the problem is due to differences in physical properties (differences in flexibility, elasticity, extensibility, thickness, width, etc.) due to the tape material and dimensions. An object of the present invention is to provide a tape applicator capable of suppressing a reduction in applicability and simplifying the construction of a tape applicator and reducing the minimum applicator length.

  In view of such circumstances, the tape application unit (20) of the present invention is supplied from the tape guide part (22, 23, 24) for guiding the adhesive tape (T) and the tape guide part (22, 23, 24). The adhesive tape (T) is configured to be switchable between a tape holding state in which the adhesive tape (T) is positioned and held at a holding position (PP) and a tape release state in which the adhesive tape (T) is movably guided. A tape holding portion (25) configured to be movable along a tape drawing direction (PD) between a retracted position (P1) on the tape withdrawal side and an advanced position (P2) on the tape withdrawal side; Tape affixing provided so as to be capable of advancing and retreating to the affixed surface (18a) of the affixed object (18) to which the adhesive tape (T) is to be affixed on the tape drawing destination side of the tape holding part (25). Roller (28a) Further, by advancing the tape application roller (28a) to the application target surface (18a), the tape application roller (28a) protrudes from the tape holding part (25) arranged at the advance position (P2) to the tape drawing destination side and is not restrained. A tape application mechanism (28) configured to be able to apply a tape front end (Ta) having a free end to the application surface (18a) at an application position (TP), and the tape arrangement mechanism (28) disposed at the retracted position (P1). The adhesive tape (T) can be cut at a cutting position (CP) between the holding position (PP) by the tape holding part (25) and the applying position (TP) by the tape applying roller (28a). By controlling the tape cutting means (29), the tape holding part (25), the tape applying mechanism (28), and the tape cutting means (29), the tape tip (Ta) is controlled. The tape holding portion (25) in the state of holding the tape in a state of projecting toward the tape drawing destination side is disposed at the forward movement position (P2), and the tape application roller (28a) is advanced to advance the tape tip portion. A tape sticking start operation for sticking (Ta) to the adherend surface (18a), the tape holding portion (25) being placed in the retracted position (P1) in the tape release state, and the adherend surface (18a) ) Along with the tape applying roller (28 a) along the relative movement of the tape applying roller (28 a) and pulling out the adhesive tape (T) while being attached to the application surface (18 a), and the retracted position (P 1 The tape holding part (25) disposed in the tape is held in the tape holding state, the adhesive tape (T) is cut by the tape cutting means (29), and the holding position (PP) and the cutting position are cut. A tape cutting operation in which a portion between (CP) is the tape tip portion (Ta) and a portion between the cutting position (CP) and the sticking position (TP) is a tape terminal portion; Control means for sequentially realizing a tape terminal application mode in which the tape terminal portion can be applied to the application surface (18a) by relative movement of the tape application roller (28a) along the surface (18a). (31).

  According to the present invention, in the tape application start operation, the tape front end portion (Ta) having the free end that is not restrained as described above is directly pressed against the application surface (18a) by the tape application roller (28a). As a result, it is not necessary to use another member for restraining the leading edge of the tape leading end (Ta), so that the tape sticking mechanism can be simplified. In addition, the tape holding portion (25) is arranged at the forward position (P2) in the tape applying start operation, thereby reducing the distance between the tape holding direction (PD) of the tape holding portion (25) and the tape applying roller (28a). Therefore, the length (La) of the tape tip (Ta) can be shortened. The shortening of the length (La) of the tape front end portion (Ta) brings about higher accuracy of the attaching position of the front end edge of the adhesive tape (T) and improvement of reproducibility. This is because, when the adhesive tape (T) is started to be applied, if the length (La) of the tape front end (Ta) is short, the amount of sag of the tape front end (Ta) and the variation in the position of the front end edge are reduced. Therefore, the sticking start operation by the tape sticking roller (28a) can be performed reliably and accurately. In particular, it is effective in reducing the above-mentioned variation caused by the tape material. Furthermore, since the tape holding part (25) is in the tape holding state in the tape application start operation, the tape tip part (Ta) is difficult to move to the tape drawing source side, so that the tape application start operation can be reliably performed. it can. On the other hand, in the tape sticking operation mode, the tape holding part (25) in the tape release state is disposed at the retracted position (P1) away from the tape sticking roller (28a), so that the sticking position ( TP) can reduce the refractive index of the installation path of the tape, reduce the tape pull-out resistance during the tape application operation, reduce the tension applied to the adhesive tape (T) before application, and reduce the fluctuation Suppression can be achieved. Moreover, the variation in the sticking state by tape material can also be reduced.

  In the present invention, the tape applying mechanism (28) moves the tape applying roller (28a) forward and backward in an inclined direction toward the tape holding portion (25) as it approaches the surface to be applied (18a). It is preferably configured to enable. According to this, in the tape sticking start operation, the tip edge of the tape tip (Ta) is stuck by moving the tape sticking roller (28a) toward the sticking surface (18a) in the inclined direction as described above. If it comprises so that it may stick to a surface (18a), while avoiding physical interference between a tape holding part (25), a tape sticking mechanism (28), and a tape cutting means (29), a tape sticking roller ( Since the affixing position (TP) on the affixed surface (18a) of 28a) can be brought close to the tape holding part (25), the length of the tape front end part (Ta) can be realized while configuring the tape affixing start operation. It is possible to shorten the length (La).

  In the present invention, the tape holding portion (25) is configured such that, when the tape sticking start operation is performed, the tape tip portion (Ta) protrudes obliquely toward the sticking surface (18a) side of the tape withdrawal destination. It is preferable to hold the adhesive tape (T). Thereby, compared with the case where the tape front-end | tip part (Ta) protrudes horizontally from a tape holding | maintenance part (25), the amount of sag | fall (the curvature degree toward the downward direction) can be reduced, and tape front-end | tip part Compared to the case where (Ta) protrudes vertically downward, it is possible to avoid contact with the surface to be adhered (18a) while ensuring the length (La). In particular, when the tape application roller (28a) is configured to be able to advance and retreat in the inclined direction, the tape application roller (28a) with respect to the tape tip portion (Ta) projecting obliquely in the tape application start operation. Is advanced in the above-mentioned inclination direction and the leading edge of the tape front end portion (Ta) is attached on the surface to be applied (18a), so that the protruding direction of the tape front end portion (Ta) and the inclination direction in which the tape application roller 28a advances are Since the tape front end (Ta) is difficult to escape from the tape application roller (28a), the tape front end (Ta) application start operation to the application surface (18a) is ensured and accurate. It becomes possible to do. In the tape application start operation, the tape front end portion (Ta) is applied to the application start position SP corresponding to the application position (TP) on the application surface (18a) of the tape application roller (28a) or the application position ( It is only necessary to have a length (La) that reaches a sticking start position (SP) slightly exceeding TP).

  Moreover, it is preferable that the cutting position (CP) of the tape cutting means (29) is closer to the sticking position (TP) than the holding position (PP). Thereby, the minimum sticking length of the adhesive tape (T) on the sticking surface (18a) of the sticking object (18) (this is the tape terminal portion between the sticking position (TP) and the cutting position (CP)). Can be shortened.

  In this case, the retracted position (P1) is a position where the tape holding part (25) does not interfere with the cutting position (CP) by the tape cutting means (29), and the advanced position (P2) The tape holding part (25) is preferably at a position where it interferes with the cutting position (CP) by the tape cutting means (29). In this way, when the tape holding part (25) is in the retracted position (P1), the tape cutting means (29) and the tape holding part (25) can be cut at the cutting position (CP) by the tape cutting means (29). When the tip edge of the tape tip (Ta) is stuck to the sticking surface (18a) by the tape sticking roller (28a), the tape holding part (25) is arranged at the forward position (P2). Thus, the length (La) of the tape front end (Ta) can be shortened.

  In this invention, the said tape holding | maintenance part (25) makes the said adhesive tape (T) supplied from the said tape guide part (22,23,24) an adhesive surface (t1) from the said to-be-attached object (18) side. A tape support roller (25a) that is rotatably supported and supports the tape support roller (25a) from the opposite side of the object (18) to the holding position ( In PP), a tape holding unit that abuts the adhesive tape (T) on the outer peripheral surface of the tape support roller (25a) and sandwiches the adhesive tape (T) with the outer peripheral surface of the tape support roller (25a). It is preferable to have a member (25b).

  In this case, the tape holding portion (25) is configured such that the tape tip portion (Ta) protrudes in a tangential direction at the holding position (PP) on the outer peripheral surface of the tape support roller (25a). It is preferable to hold the tape (T). According to this, the tape front end portion (Ta) protrudes in the tangential direction at the holding position (PP) of the outer peripheral surface of the tape support roller (25a), so that the adhesive tape (T) is excessive at the holding position (PP). Since stress is not received or refracted, it is possible to perform application in an appropriate tape state regardless of the tape material.

  The tape holding member (25b) preferably has a flat surface (25bx) that comes into contact with the adhesive tape (T) on the outer peripheral surface of the tape support roller (25a) at the holding position (PP). That is, the flat surface (25bx) is held by sandwiching the adhesive tape (T) with the outer peripheral surface of the tape support roller (25a) at the holding position (PP). In particular, it is desirable that the flat surface (25bx) has a surface portion extending in the tangential direction of the holding position (PP) on the tape drawing destination side (outer peripheral side) of the holding position (PP). Thus, the adhesive tape (T) sandwiched between the outer peripheral surface of the tape support roller (25a) and the flat surface (25bx) of the tape holding member (25b) at the holding position (PP) is held at the holding position ( PP) is guided toward the tape drawing destination side by the surface portion extending in the tangential direction of the outer peripheral surface of the tape support roller 25a, so that the tape front end (Ta) can be protruded in the tangential direction. it can.

  In the present invention, the tape holding member (25b) includes a rotation drive shaft (25d) provided on the opposite side of the object to be adhered (18) with respect to the tape support roller (25a), and the rotation drive shaft. (25d) and a flat surface (25bx) disposed between the outer peripheral surface of the tape support roller and the flat surface (25bx) between the outer peripheral surface of the tape support roller (25a) and the adhesive A rotating roller configured to be able to switch between a tape holding state (locked state) that holds the tape (T) and a tape released state (unlocked state) that is separated from the adhesive tape (T) according to its rotating posture ( 25b).

  In this case, a guide member (25g) is attached to the tape holding member (25b) on the outer surface (25by) adjacent to the outer peripheral side of the flat surface (25bx), and the guide member (25g) It is preferable to have a protruding end (25ga) that protrudes to the outer peripheral side along the flat surface (25bx) and prevents the tape tip (Ta) from warping.

  In the present invention, the tape applying unit (20) is configured such that the tape drawing direction (PD) is directed from the tape drawing source side to the tape drawing destination side with respect to the sticking surface (18a). It is preferably maintained in a tilted position in a manner approaching 18a). According to this, when it is based on the application position (TP) with respect to the application surface (18a) of the tape application roller (28a) on the tape extraction destination side, it is closer to the tape extraction source than this. The height of the adherend surface (18a) at the position facing the leading edge of the tape leading end portion (Ta) protruding from the tape holding portion (25) in the retracted position (P1), and the cutting position of the tape cutting means (29) The height of the adherend surface (18a) at a position facing (CP) is lower than the attachment position (TP). Therefore, it is easy to avoid the tip edge of the tape tip portion (Ta) protruding from the tape holding portion (25) in the retracted position (P1) from coming into contact with the adherend surface (18a), and the tape cutting means (29 ) Of the tape cutting blade (29a) can be sufficiently secured, so that a reliable cutting action can be realized.

  In the tape sticking method according to the present invention, the tape sticking unit (20) operates as follows. First, the tape holding portion (25) in the tape holding state is moved from the retracted position (P1) in such a manner that the tape front end portion (Ta) having an unconstrained free end protrudes toward the tape drawing destination side, and The tape tip (Ta) is placed at the advancing position (P2) (tape drawing process), and the tape application roller (28a) is advanced toward the object (18) to attach the tape tip (Ta) to the application surface (18a). (Tape sticking start process). Thereafter, the tape holding part (25) is released into the tape released state and returned to the retracted position (P1), and the tape application length is between the cutting position (CP) and the application position (TP) during the tape cutting operation. When the length is longer than the length of the tape terminal, the tape sticking unit (20) is moved relative to the sticking object (18) along the sticking surface (18a) to execute the tape sticking operation. (Tape applying operation process), otherwise, the process proceeds to the next process. Thereafter, the tape applying unit (20) is stopped with respect to the object to be applied (18), and the tape holding unit (25) is set in the tape holding state, and then the tape cutting operation is performed by the tape cutting means (29). (Tape cutting process). Finally, the tape terminal unit (20) is attached to the adherend surface (18a) by moving the tape applicator unit (20) relative to the adherend (18) along the adherend surface (18a). Wear (tape terminal sticking process).

  The tape applicator (10) according to the present invention includes a tape applicator unit (20), a support table (17) that supports the article to be applied (18), the support table (17), and the tape applicator unit ( 20) and drive means (12, 13, 14, 15, 16, 17) configured to be relatively movable. As the driving means, a plane driving means for driving the support table (17) and the tape applying unit (20) so as to be relatively movable along a support surface of the support table (17), and the support table (17 ) And the tape sticking unit (20), a vertical driving means for driving so as to be relatively movable in a direction in which the distance is variable, and a relative relationship between the support table (17) and the tape sticking unit (20) about the vertical axis. It is preferable to comprise shaft rotation driving means for driving the posture to be changeable.

  ADVANTAGE OF THE INVENTION According to this invention, while suppressing the fall of the sticking precision by the difference in the physical property resulting from the material and dimension of a tape, a tape sticking mechanism can be comprised simply and the minimum sticking length can be shortened An excellent effect that the apparatus can be realized can be achieved.

It is the front view (a) of the tape sticking unit which concerns on embodiment of this invention, and the enlarged front view (b) which shows the principal part of the tape sticking mechanism of the said tape sticking unit. The rear view (a) of the tape application unit of the embodiment, the application start position SP and application end position EP of the adhesive tape by the tape application unit, the light spot 30b, the axis 20x of the unit attachment axis, and the planar surface of the unit support 21 It is explanatory drawing (b) which shows a positional relationship. It is the top view (a) which shows a mode that the tape sticking unit of the embodiment was seen from the upper part side of the unit support body 21, and the bottom view (b) which showed a state seen from the lower part side. It is the front side perspective view (a) and back side perspective view (b) of the tape sticking unit of the embodiment. It is explanatory drawing which shows the positional relationship of each part when the tape sticking mechanism of a tape sticking unit exists in an origin position. FIG. 6 is an enlarged explanatory view of a tape fixing area VI shown in FIG. 5. It is explanatory drawing which shows the positional relationship before the sticking start of a tape sticking mechanism. It is explanatory drawing which shows the operation | movement at the time of the sticking start of a tape sticking mechanism. It is explanatory drawing which shows the mode at the time of the sticking operation | movement of a tape sticking mechanism, and operation | movement completion | finish. It is explanatory drawing which shows the tape cutting operation | movement at the time of completion | finish of sticking of a tape sticking mechanism. It is operation | movement explanatory drawing (a)-(c) which shows the initial stage operation | movement until the sticking start of a tape sticking unit. It is operation | movement explanatory drawing (a)-(c) which shows the sticking operation | movement of a tape sticking unit. It is operation | movement explanatory drawing (a)-(c) which shows completion | finish operation | movement until the sticking completion of a tape sticking unit. It is a schematic plan view which shows the whole structure of the tape sticking apparatus which concerns on embodiment of this invention. It is a schematic front view which shows the whole structure of the embodiment.

  Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Initially, with reference to FIG.14 and FIG.15, the outline of the whole structure of a tape sticking apparatus is demonstrated.

  The tape sticking device 10 is connected to a base 11 provided with an operation part 11a and a display part 11b at a front end part, and left and right end parts of the rear part of the base 11, and each column is erected upward. It has the parts 12a and 12b, and the bridge | crosslinking part 13 constructed between these support | pillar parts 12a and 12b. And the movable support body 14 comprised so that the bridge | crosslinking part 13 was movable to the left-right direction (X-axis direction) along the bridge | bridging part 13 is attached. A support drive unit 15 is provided in front of the movable support 14, and a drive shaft 15 a extends downward from the support drive unit 15. The lower end of the drive shaft 15 a is connected to the tape attaching unit 20. Note that a cover case indicated by a two-dot chain line in the drawing is attached to the tape applying unit 20.

  The support drive unit 15 moves a drive shaft 15a in the vertical direction (Z-axis direction) and rotates a ball screw mechanism or the like (not shown) so that the drive shaft 15a can be rotated around a vertical axis (θ-axis direction). By using this, the drive shaft 15a is driven in the vertical direction and the rotational direction.

  A support guide 16 having a guide path in the front-rear direction (Y-axis direction) is attached on the base 11, and a moving table (movable table) guided on the support guide 16 so as to be movable in the front-rear direction (Y-axis direction). Support table) 17 is installed. On the moving table 17, if necessary, a suction holding means for holding and fixing an object 18 such as a wiring board or a mechanical fixing means such as a clamp can be provided.

  The tape applicator 10 controls the operation mode of each mechanism portion in the tape applicator unit 20, moves the movable support 14 in the left-right direction, and drives the support drive unit 15 in the vertical and rotational directions. The control means 31 for controlling a mode and the movement mode of the said movement table 17 in the front-back direction is provided. This control means 31 is comprised by a programmable controller, MPU (microprocessor unit), etc., and is arrange | positioned inside the base 11 in the example of illustration. This control means 31 controls each part of the tape sticking mechanism, which will be described later, of the tape sticking unit 20 so that a predetermined operation and mode are realized in a predetermined procedure. That is, control is performed so that a tape application start operation, a tape application mode, a tape cutting operation, and a tape terminal application mode, which will be described later, are realized in order. The control unit 31 also moves the tape applying unit 20 with respect to the moving table 17 in the left-right direction (X-axis direction), the front-rear direction (Y-axis direction), the up-down direction (Z-axis direction), and the rotation direction (θ-axis direction). ) Can be moved relative to each other arbitrarily or in combination with each other. Further, as will be described later, the control means 31 can place the tape sticking unit 20 at an arbitrary position by manual operation of the operation unit 11a, and further perform a predetermined additional operation at this position, thereby providing the tape sticking unit. It is possible to input and store the position information of the tape application position (TP) corresponding to the 20 positions or other positions corresponding thereto, for example, the application start position (SP) and the application end position (EP). it can. And by this function, the said control means 31 memorize | stores the positional infomation on the sticking start position (SP) and the sticking end position (EP), respectively, and from the sticking start position (SP) based on these memorize | stored positional information. It is possible to actually stick the adhesive tape T to the object to be pasted 18 in the region up to the sticking end position (EP).

  Next, with reference to FIG. 1 thru | or FIG. 4, the structure of the tape sticking unit 20 which concerns on this invention is demonstrated in detail. First, the tape applying unit 20 is provided with a unit mounting shaft 20a connected to the drive shaft 15a of the tape applying device 10, and this unit mounting shaft 20a is fixed to the unit support 21 via a bracket 20b. Yes. Here, the unit support 21 is formed of a plate-like body that has a vertical posture parallel to the unit mounting shaft 20a. At this time, the bracket 20b is capable of adjusting the fixing angle between the unit mounting shaft 20a and the unit support 21 while maintaining the vertical posture of the unit support 21 (for example, a long hole and a bolt). It has. That is, the tape sticking unit 20 has a predetermined direction set on a vertical plane along the plate surface of the unit support 21 (for example, a tape drawing direction PD by a tape holding unit 25 described later) and the unit mounting shaft 20a. The angle with respect to the axis 20x can be adjusted and set.

  A tape reel 22 is attached to an upper position on the front side of the unit support 21, and a tape roll R formed by winding an adhesive tape T is attached to the tape reel 22. Connected to the back side of the tape reel 22 is a bearing body that pivotally supports the rotating shaft of the tape reel 22 and a pivot portion 23 that includes a torque unit that imparts a predetermined rotational resistance to the rotating shaft.

  A plurality of guide rollers 24 a to 24 e for guiding the adhesive tape T drawn from the tape roller R mounted on the tape reel 22 are installed on the front side of the unit support 21 along a preset tape supply path. Has been. Among these guide rollers, the guide roller 24b is a tension roller configured to apply tension to the adhesive tape T. The guide roller 24b is connected to a rotary shaft 24ba that is rotatably supported through the unit support 21, and a pressure rod 24bb is attached to the rotary shaft 24ba on the back surface of the unit support 21. Tension is applied by an elastic member 24bc such as a coil spring connected to the pressure rod 24bb. Further, the two guide rollers 24d and 24e arranged closest to the tape drawing destination are mounted on a common belt support 24f having a strip shape. The guide rollers 24d and 24e together with positioning frames 24g and 24h described later define the supply direction of the adhesive tape T to the tape holding unit 25. The tape reel 22, the pivot portion 23, and the guide rollers 24a to 24e constitute tape guide portions 22, 23, and 24 for guiding the adhesive tape T. The tape guides 22, 23 and 24 maintain the adhesive tape T in a state where it can be stably pulled out under a condition where a certain tension is applied, and the generation of a non-uniform extension state of the adhesive tape T and the occurrence of slack. To prevent.

  A tape holding portion 25 that guides the adhesive tape T and temporarily positions and holds the adhesive tape T is installed at the tape drawing destination (right side in the drawing) of the tape guide portions 22, 23, and 24. The tape holding portion 25 is arranged over the front side and the back side through a notch-shaped opening 21 a provided at the lower edge of the unit support 21. The tape holding unit 25 is capable of rotating both the tape support roller 25a that supports the adhesive tape T from below, the tape holding member 25b disposed above the tape support roller 25a, and the tape support roller 25a and the tape holding member 25b. And a support frame body 25c that is pivotally supported. Here, the tape support roller 25a is pivotally supported with respect to the support frame 25c so that the adhesive tape T is not substantially subjected to rotational resistance from the tape support roller 25a. Since the outer peripheral surface of the tape support roller 25a supports the adhesive surface t1 (see FIG. 1B) of the adhesive tape T, a non-adhesive treatment coating (for example, for reducing the adhesive force with the adhesive surface t1) “Tocical S coating process”).

  The tape holding member 25b is fixed to a drive shaft 25d that penetrates the support frame 25c to the back side. The drive shaft 25d is driven in a forward and reverse rotation direction via a drive lever 25e by a drive unit 27 such as an air cylinder mounted on a drive body 26 described later installed on the back surface of the unit support 21. Is done. Accordingly, the drive unit 27 is configured to be able to rotate the tape holding member 25b in both the forward and reverse directions within a predetermined angle range via the drive shaft 25d. Further, the support frame body 25c is mounted on the driving body 26 constituted by an air slide table or the like guided so as to be movable in the left-right direction in the figure on the back side of the unit support body 21, whereby the left-right direction in the figure (described later). Driven linearly in the tape drawing direction PD). The moving range of the driving body 26 is defined by a backward position P1 and a forward position P2 described later.

  As shown in FIG. 11A, the tape holding member 25b has a flat surface 25bx on the side (lower side) of the tape support roller 25a, and is driven as described above to rotate clockwise in the figure. The outer peripheral portion on the right side of the flat surface 25bx in the drawing is in contact with the non-adhesive surface t2 (see FIG. 1B) of the adhesive tape T, and the adhesive tape T is pressed against the outer peripheral surface of the tape support roller 25a and fixed (tape). Holding state or locked state). A guide member 25g is attached to a portion adjacent to the outer peripheral side portion of the flat surface 25bx of the outer peripheral cylindrical surface 25by provided on a portion other than the flat surface 25bx of the tape holding member 25 by a fixing screw 25h or the like. Yes. The guide member 25g includes a projecting end portion 25ga projecting in a direction along an extension line extending further toward the outer periphery along the outer peripheral side portion of the flat surface 25bx. When the adhesive tape T is sandwiched between the flat surface 25bx and the outer peripheral cylindrical surface of the tape support roller 25a, the protruding end portion 25ga has a tape tip portion Ta tangential to the outer peripheral cylindrical surface of the tape support roller 25a. Is prevented from rolling upward. Such upward winding of the tape front end portion Ta is based on the relationship between the extensibility of the adhesive tape T and the tension applied by the tape guide portions 22, 23, 24. Is too large and tends to occur when the adhesive tape T is too stretched. The tension applied by the tape guides 22, 23, and 24 is preferably adjusted to an appropriate value according to the tape material, but a large tension is applied to the extent that the tape material greatly expands as required. It is also possible to affix in a state.

  Here, the tape holding member 25b is always in a locked state (tape holding state where the adhesive tape T is held and fixed) when the power is turned off, and is unlocked only when a control signal (holding release signal) is output when the power is turned on. The drive unit 27 is configured to be in a tape release state in which the adhesive tape T is released. This is because the adhesive tape T is always pulled by the tension roller 24b of the tape guide portion to the tape drawing source side with a predetermined tension, so that the adhesive tape T is pressed onto the surface 18a to be applied by the tape application roller 28a. This is because it is necessary to keep the tape leading end Ta so that the tape leading end Ta is not pulled out from the tape holding unit 25 by being pulled back to the tape drawing source side. When exchanging the adhesive tape T (tape roller R), it is only necessary to release the tape holding state of the tape holding unit 25 by causing the above-mentioned holding release signal to be manually generated and shift to the tape released state. .

  Further, a tape applying mechanism 28 and a tape cutting mechanism (tape cutting means) 29 are disposed at the tape drawing destination (right side in the drawing) of the tape holding portion 25. The tape sticking mechanism 28 includes a tape sticking roller 28a that is rotatably supported at a shaft support portion provided at the lower end, and a sticking cylinder 28b that drives the tape sticking roller 28a so that the tape sticking roller 28a can be moved forward and backward. The tape cutting mechanism 29 includes a tape cutting blade 29a attached to the lower end, and a cutting cylinder 29b that drives the tape cutting blade 29a so as to advance and retreat in an inclined direction. In the illustrated example, the advancing / retreating direction of the tape applying roller 28a in the tape applying mechanism 28 and the advancing / retreating direction of the tape cutting blade 29a of the tape cutting mechanism 29 are parallel to each other and have the same inclination direction. Yes.

  The tape reel 22, the guide rollers 24a to 24e, the tape support roller 25a and the tape holding member 25b, the tape applying roller 28a, and the tape cutting blade 29a of the tape guide portions 22, 23, 24 are all shown in the illustrated adhesive tape T. Each of them is configured to be compatible with a tape having a wider width. As shown in FIG. 3, the width of the illustrated adhesive tape T is Wt, but each of the above-described members can also correspond to an adhesive tape having the illustrated maximum width Wo. Here, as shown in FIGS. 1A and 4A, positioning frames 24g and 24h for positioning the adhesive tape T in the width direction are attached to the guide rollers 24d and 24e at the final stage. . The mounting positions in the width direction of the positioning frames 14g and 14h are configured so as to be arbitrarily changed / adjustable according to changes in the widths Wt to Wo of the adhesive tape T.

  Further, as shown in FIG. 1A, a position indicator 30 made of a laser pointer or the like is mounted on the front side of the unit support 21, and a reference light 30a such as a laser beam emitted from the position indicator 30. (The two-dot chain line in the figure) is configured to form a light spot 30b on the adherend surface 18a. This light spot 30b is generated by the tape application roller 28a as shown in FIG. 2B when the tape application unit 20 is disposed at a normal operating height with respect to the application surface 18a of the object 18 to be applied. The sticking start position SP or the sticking end position EP that coincides with the sticking position TP on the sticking surface 18a or is a corresponding position slightly beyond the sticking position TP as shown in the figure is shown. In the illustrated example, the light spot 30b is configured to indicate an edge corner portion closest to the unit support 21 of the pasting start position SP or the pasting end position EP.

  And when it is going to set the sticking start position SP or the sticking end position EP of the said adhesive tape T with the said light spot 30b, the plane of the tape sticking unit 20 in an operating height by operating the operation part 11a manually. The position is moved, and the operation unit 11a is additionally operated in a state where the light spot 30b is aligned with the desired sticking start position SP, and the position information is input, so that the plane coordinates of the tape sticking unit 20 at that time are put into the sticking start position. It can be recorded as SP position information. Similarly, by additionally operating the operation unit 11a with the light spot 30b aligned with the application end position EP, the plane coordinates of the tape application unit 20 at that time can be recorded as position information of the application end position EP. It is like that. The control means 31 reads the position information of the sticking start position SP and the sticking end position EP set in this way, thereby arranging the tape sticking unit 20 at a position corresponding to the sticking start position SP, and the tape sticking roller 28a. The sticking of the adhesive tape T by the tape sticking roller 28a can be finished at a position corresponding to the tape sticking end position EP. The setting method of the sticking start position SP and the sticking end position EP is not limited to the input method using the light spot 30b, and other methods such as a method of directly inputting planar coordinates with the operation unit 11a, for example. It is also possible to use it.

  Here, the position indicated by the light spot 30b may be a fixed position with respect to the tape applying unit 20. However, the position indicated by the light spot 30b is preferably set coaxially with the unit mounting shaft 20a. That is, it is preferable that the axis 20x pass through the light spot 30b on the adherend surface 18a when the tape attaching unit 20 is at the operating height. Thus, even when the tape applying unit 20 is turned by rotating the drive shaft 15a connected to the unit mounting shaft 20a, the position of the light spot 30b is always arranged on the axis 20x of the unit mounting shaft 20a. Is done. For this reason, without performing the calculation process using the sticking posture of the tape sticking unit 20 and the sticking direction of the adhesive tape T, and when inputting the sticking start position SP and sticking end position EP using the light spot 30b. In this case, even if the posture of the tape application unit 20 is not matched with the application direction of the adhesive tape T, the optical spot 30b can be configured not to be misaligned between the application start position SP and the application end position EP. When the indicated position of the light spot 30b matches the axis 20x as described above, the application start position SP and the application end position EP correspond to the indicated position of the light spot 30b with respect to the axis 20x. Needless to say, it is necessary to arrange and configure the tape applying mechanism so as to be in a predetermined form.

  FIGS. 1A and 1B show a state where the tape applying unit 20 is at a standby height higher than the normal operating height with respect to the surface to be applied 18a. For this reason, the virtual position of the said to-be-applied surface 18a which the laser beam 30a reaches | attains when the tape sticking unit 20 shall be a regular operating height is shown with the dotted line. For example, the operating height is a height at which the distance between the lower end of the tape support roller 25a of the tape holding unit 25 at the later-described retracted position P1 and the adherend surface 18a is 5 mm, while the standby The height is a height at which the distance is 8 mm.

  Next, with reference to FIGS. 5 to 13, a more detailed structure, mutual arrangement, and operation mode of the tape holding unit 25, the tape applying mechanism 28, and the tape cutting mechanism 29 of the tape applying unit 20 will be described. FIG. 5 shows a tape application mechanism, that is, a tape support roller 25a, a tape fixing member 25b, and a tape at the time of return to the origin after cutting the tape (the origin position set to a predetermined plane coordinate). Each positional relationship of the sticking roller 28a and the tape cutting blade 29a is shown. Thus, when the tape applying unit 20 is at the origin position, the tape holding unit 25 is in the retracted position P1 on the left side in the drawing, and the tape applying roller 28a and the tape cutting blade 29a are in the obliquely upward retracted position. The actual state of the tape applying mechanism at this time is shown in FIG. When the tape applying unit 20 is at the origin position, as described above, the operation height shown in FIG. 11A with respect to the surface 18a shown in FIG. 1A and FIG. Arranged at a slightly higher standby height. As will be described later, the tape tip Ta having a free end is bent vertically downward for some reason during the movement of the entire unit 20 or the tape holding portion 25, and the tip edge thereof contacts the surface 18a. This is to prevent this from happening. Thereafter, in the process of moving from the origin position to the set application start position SP, before the tape application operation, the tape application unit 20 has a height corresponding to the application surface 18a indicated by the dotted line in FIG. That is, it descends to the operating height shown in FIG.

  As an example of the operation mode as described above, for example, after the tape sticking unit 20 has moved from the origin position to the sticking start position SP at the standby height, the tape holding unit 25 moves in the tape drawing direction PD as will be described later. Then, the adhesive tape T is pulled out to the advance position P, and then the tape application unit 20 is lowered to the operating height, and then the tape application roller 28a is lowered and presses the adhesive tape T against the application surface 18a. That is, after moving to the sticking start position SP, the stand-by height is set until the tape drawing operation by the tape holding unit 25 is performed, and then the sticking is started after the height is lowered to the working height. If it does in this way, the tape front-end | tip part Ta tends to hang down during the movement of the tape sticking unit 20 or the tape drawing | extracting by the tape holding | maintenance part 25, but since the tape sticking unit 20 is maintained at standby height at this time, a tape The situation where the tip Ta contacts the surface to be pasted 18a is avoided. Further, when the next tape application work is performed after one tape application work is completed, the tape application unit 20 is again raised and arranged at the standby height when moving to the next application start position SP. Then, after the movement to the next sticking start position SP and the tape drawing operation are completed, it descends and is set to the operating height.

  In the tape holding state in which the adhesive tape T is held and fixed by the tape holding unit 25, the tape holding member 25b presses the adhesive tape T onto the outer peripheral cylindrical surface of the tape support roller 25a at the holding position PP. Here, the tape front end portion Ta of the adhesive tape T is a portion on the tape drawing destination side (right side in the drawing) from the holding position PP. The tape front end portion Ta extends obliquely downward along the tangential direction at the holding position PP of the outer peripheral cylindrical surface of the tape support roller 25a, and the front end edge is a free end that is not restricted by anything. The length La (see FIG. 5) of the tape tip Ta is determined so that the cutting position CP is a certain distance from the holding position PP during a tape cutting operation (tape cutting process) described later. Therefore, the length is always constant.

  In the present embodiment, the tape holding member 25b has a flat surface 25bx provided so as to be positioned closer to the tape support roller 25a than the center Ob, and an outer peripheral cylindrical surface 25by formed around the center Ob. It has. 5 to 10, the flat surface 25bx is shown in a D-shaped cross section having a contour that appears as a chord on the cross section for the sake of simplicity. However, as shown in FIG. 1 to FIG. 4 and FIG. 11 to FIG. 13, if the flat surface 25bx capable of contacting the outer peripheral cylindrical surface of the tape support roller 25a is provided on a part of the outer periphery, It may have any cross-sectional shape other than the shape. In the illustrated example, the distance Lo between the center Oa of the tape support roller 25a and the center Ob of the tape holding member 25b is smaller than the sum of the radius Ra of the tape support roller 25a and the radius Rb of the tape holding member 25b (Lo <Ra + Rb). . Further, the distance Lb between the center Ob of the tape holding member 25b and the flat surface 25bx may be less than the radius Rb. Furthermore, in order to make the contact state of the tape holding member 25b with the outer peripheral surface of the tape support roller 25a suitable, it is preferable to make the radius Ra smaller than Rb.

  FIG. 6 is a partially enlarged view showing the contact area VI between the tape support roller 25a and the tape holding member 25b shown in FIG. 5 in an enlarged manner. On the outer peripheral cylindrical surface of the tape support roller 25a, the tape holding member 25b comes into contact with the adhesive tape T, and when the adhesive tape T is pressed onto the outer peripheral cylindrical surface of the tape support roller 25a, the flat surface 25bx of the tape holding member 25b is used. The holding position PP is substantially linear (dotted on the cross section shown). At this time, the flat surface 25bx extends beyond the holding position PP to the tape drawing destination side (the right side in the figure) and extends in the tangential direction of the outer peripheral cylindrical surface of the tape support roller 25a at the holding position PP. Preferably, it is configured. In the illustrated example, it is preferable that the intersection line (intersection point on the cross section in the figure) KP between the flat surface 25bx and the outer cylindrical surface 25by be closer to the tape withdrawal destination (outer peripheral side) than the holding position PP. This is to prevent the adhesive tape T from being refracted upward at the holding position PP and the tape tip Ta from jumping upward. For example, when the intersection line KP between the flat surface 25bx and the outer peripheral cylindrical surface 25by contacts the adhesive tape T and coincides with the holding position PP, the convex intersection line KP contacts the adhesive tape T. The tape front end portion Ta is easily refracted upward at the holding position PP. However, as shown in FIG. 6, when the intersection line KP is closer to the tape withdrawal destination than the holding position PP (right side, outer peripheral side in the drawing), the adhesive tape T is flat from the holding position PP that receives the strongest clamping pressure. Therefore, the tape tip portion Ta is also likely to extend in the tangential direction. This effect is further enhanced by attaching the guide member 25g to the tape drawing destination side of the tape holding member 25b as described above and guiding the tape front end portion Ta in the tangential direction by the protruding end portion 25ga.

  The protruding direction of the tape front end portion Ta from the tape holding portion 25 is such that the holding position PP of the tape holding member 25b in the tape holding state corresponds to the corresponding position on the outer peripheral surface of the tape support roller 25a and the flat surface 25bx of the tape holding member 25b. It is almost determined by the inclination angle. When the protruding direction is substantially the tangential direction of the outer peripheral cylindrical surface of the tape support roller 25a at the holding position PP, the protruding direction depends on the corresponding position of the holding position PP on the outer peripheral surface of the tape support roller 25a. Determined. At this time, when the protruding direction of the tape front end portion Ta is close to the horizontal direction, the tape front end portion Ta is likely to hang downward, so that an appropriate application operation to the surface to be applied 18a when the tape application roller 28a described later is lowered. It becomes difficult to be realized. On the other hand, when the protruding direction is close to the vertical direction, the leading edge of the tape leading end portion Ta is brought into contact with the surface to be adhered 18a due to the relationship between the diameter (2 × Ra) of the tape supporting roller 25a and the length La of the tape leading end portion Ta. If contact is made or no contact is made, it is necessary to shorten the length La of the tape front end portion Ta, so that it is difficult to realize an appropriate application operation by the tape application roller 28a. Therefore, it is preferable that the protruding direction is a direction directed obliquely downward (to the pasted surface 18a side) toward the tape drawing destination side, as in the illustrated example. In particular, in order to facilitate the sticking operation of the tape tip portion Ta to the sticking surface 18a by the tape sticking roller 28a while ensuring the accuracy of the sticking position of the tape tip portion Ta, the protruding direction is based on the horizontal direction. In this case, it is preferably within an angle range of 20 to 45 degrees, and preferably within an angle range of 25 to 35 degrees.

  In the tape applicator 10, the tape applicator unit 20 is disposed at a predetermined origin position on the base 11 as described above in the initial state. In the tape applying mechanism disposed at this origin position, the tape holding portion 25 is disposed at the retracted position P1 as described above, and the tape applying roller 28a and the tape cutting blade 29a are at the retracted position. In this initial state, the reference light 30a reaches the adherend surface 18a of the adherend 18 without being disturbed, and a light spot 30b can be formed on the adherend surface 18a. As described above, the light spot 30b serves as a mark indicating the sticking start position SP and the sticking end position EP of the adhesive tape T at the current position of the tape sticking unit 20. The tape applying unit 20 is set at the standby height when the tape applying unit 20 is at the origin position, but by adjusting the position of the light spot 30b by manual operation with respect to the operation unit 11a of the tape applying unit 20, the application start position SP or In the operation mode in which the position information of the sticking end position EP is input, the tape sticking unit 20 is configured to descend from the standby height to the above operating height, so that the light spot 30b on the sticking surface 18a is The position corresponding to the sticking start position SP or the sticking end position EP is accurately indicated.

  Here, the tape holding unit 25 is configured to be movable between the backward position P1 and the forward position P2. The moving direction of the tape holding portion 25 is depicted as a tape drawing direction PD that coincides with the horizontal direction in FIG. When the apparatus is to apply the adhesive tape T, the tape holding portion 25 is held at the holding position PP so that the tape front end portion Ta having the free end in an unconstrained state protrudes obliquely downward as described above. The adhesive tape T is held and fixed. In this state, the tape holding unit 25 is moved to the right side of the figure by the drive body 26 and stops at the forward position P2 indicated by the dotted line in FIG. As a result, the adhesive tape T is pulled out by the tape holding portion 25 toward the right side in the figure by a length corresponding to the interval between the retreat position P1 and the advance position P2 (tape drawing process). This state is shown in FIG.

  The tape sticking unit 20 can basically stick the adhesive tape T in such a posture that the tape drawing direction PD is in a direction along the adherend surface 18a. However, for various reasons such as preventing contact of the tape tip portion Ta with the surface 18a to be adhered and ensuring a sufficient cutting stroke of the tape cutting blade 29a, as shown in FIG. It is preferable to provide an inclination angle φ so that the drawing direction PD is inclined obliquely downward from the tape drawing source side (the left side in the drawing) toward the tape drawing destination side (the right side in the drawing) with respect to the adherend surface 18a. The inclination angle φ is preferably in the range of 0 to 15 degrees, and particularly preferably in the range of 5 to 10 degrees. By providing the inclination angle φ in this way, the area where the tape front end portion Ta is disposed when the tape holding portion 25 is disposed at the retracted position P1 with respect to the height of the application position TP of the tape application roller 28a. Since the height of the adherend surface 18a at the position facing the tape and the height of the adherend surface 18a at the position facing the area where the tape cutting blade 29a descends are relatively low, the tip edge of the tape tip portion Ta is It becomes difficult to contact the sticking surface 18a, and it is possible to ensure a long operation stroke of the tape cutting blade 29a that is set in a range in which the cutting edge of the tape cutting blade 29a does not touch the sticking surface 18a.

  When the tape holding portion 25 in the tape holding state moves to the forward position P2 indicated by the dotted line in FIG. 5, the tape applying roller 28a is lowered by the operation of the applying cylinder 28b, and as shown in FIG. This is a state where the leading edge is pressed against the surface 18a to be applied (tape application start operation or tape application start process). The position where the tape application roller 28a is pressed against the application surface 18a is the application position TP. In this embodiment, the tape sticking roller 28a is always pressed downward (to-be-sticked surface 18a) at a predetermined pressure (pneumatic pressure) by the operating pressure of the sticking cylinder 28b. At this time, the sticking start position SP of the adhesive tape T is slightly (generally about 1 mm) from the sticking position TP with respect to the sticking surface 18a of the tape sticking roller 28a. By doing so, a sticking mistake of the adhesive tape T when the tape sticking roller 28a is lowered (the situation where the tape sticking roller 28a cannot stick the tip edge of the tape tip portion Ta without being bonded and held on the sticking surface 18a). ) Can be prevented. The state of the tape applying mechanism at this time is shown in FIG.

  In the tape sticking mechanism 28, the tape sticking roller 28a holds the tape as the direction of advancing and retreating is not a vertical direction perpendicular to the tape drawing direction PD or the direction to be stuck 18a but closer to the lower side (the face 18a to be stuck). It is comprised so that it may become the inclination direction which goes diagonally toward the direction which approaches the part 25. FIG. In particular, as shown in the figure, it is preferable that the tape application roller 28a is inclined so that the advancing and retreating direction of the tape applying roller 28a is substantially perpendicular to the tape leading end portion Ta protruding obliquely downward toward the tape drawing destination side. As a result, the tape application roller 28a comes into contact with the unconstrained tape front end portion Ta, and the tape front end portion Ta is brought closer to the application surface 18a while pushing the tape front end portion Ta downward. The pressure-sensitive adhesive tape T can be pressed onto the adherend surface 18a more reliably and accurately, so as not to escape to the side. Further, since the tape applying roller 28a gradually approaches the tape support roller 25a side in the process of moving forward in the above-described inclination direction, the tape applying roller 28a finally applies the adhesive tape T as shown in FIG. The affixing position TP on the affixed surface 18a when affixed to the surface 18a can be set to a position close to the tape holding unit 25. For this reason, since it becomes possible to shorten the length La of the tape front-end | tip part Ta which protruded from the tape holding | maintenance part 25 required for this tape sticking operation | movement, the sagging of tape front-end | tip part Ta is reduced, and the tape sticking roller 28a is reduced. The tape sticking start operation by the tape sticking roller 28a can be carried out easily and reliably, and the tip edge of the tape tip Ta comes into contact with the sticking surface 18a before the sticking start operation by the tape sticking roller 28a is carried out. Can also be avoided.

  The tape application roller 28a is pressed against the surface 18a to be applied with a predetermined pressure, and the tape application roller 28a is inclined obliquely downward in the direction in which the adhesive tape T is applied (left side in the figure). When the adhesive tape T is pressed in an inclined posture, the tape application roller 28a advances and retreats with good conformability even if some unevenness is present on the surface 18a to be applied in the process of applying the adhesive tape T. This brings about an effect that T can be easily and surely adhered to the adherend surface 18a.

  When the leading edge of the adhesive tape T is attached to the application surface 18a by the tape application roller 28a as described above, next, the tape holding member 25b is bent at the tape holding portion 25 as shown in FIG. It rotates clockwise, moves away from the adhesive tape T and the tape support roller 25a (shown by dotted line), and shifts to the tape release state. Thereafter, as shown in FIG. 12B, the tape holding unit 25 returns from the forward position P2 to the backward position P1. At this time, since the leading edge of the adhesive tape T is fixed to the object 18 by the tape application roller 28a, the tape support roller 25a that is in contact with the adhesive surface of the adhesive tape T as shown in FIG. Moves to the retreat position P1 while rolling clockwise in the figure. In this state (tape application operation mode), when the tape application unit 20 is moved to the left in the figure with respect to the object 18 to be applied, the tape application roller 28a applies the adhesive tape T on the application surface 18a. (Tape application process). The state of the tape applying mechanism at this time is shown in FIG. 12C. In FIG. 12C, the ▽ mark on the surface to be applied 18a indicates the application start position SP of the adhesive tape T. The same applies to the ▽ mark in FIGS. 13A to 13C.

  At this time, when the tape application unit 20 is relatively moved by a length obtained by subtracting the length of the tape terminal portion described later from the tape application length, the relative movement between the object 18 and the tape application unit 20 is stopped. As shown in FIG. 9, the tape holding member 25b is rotated clockwise in the drawing, and the adhesive tape T on the outer peripheral cylindrical surface of the tape support roller 25a is clamped and fixed as shown in FIG. In this state, the adhesive tape T is held and fixed at the holding position PP sandwiched between the tape support roller 25a and the tape holding member 25b and the application position TP by the tape application roller 28a. The state of the tape applying mechanism at this time is shown in FIG.

  Finally, as shown in FIG. 10, the tape cutting blade 29a is lowered to cut the adhesive tape T at the cutting position CP between the holding position PP and the sticking position TP (tape cutting operation or tape cutting step). At this time, although the adhesive tape T is in a state of being installed obliquely between the holding position PP and the attaching position TP, the tape cutting mechanism 29 is configured to lower the tape cutting blade 29a obliquely. Since the tape cutting blade 29a can be moved at an angle close to the perpendicular to the adhesive tape T and the operation stroke of the tape cutting blade 29a can be increased, the adhesive tape T can be easily and reliably cut. In the illustrated example, the tape cutting blade 29a is configured to advance and retract in the vertical direction with respect to the adhesive tape T installed between the holding position PP and the attaching position TP. The situation at this time is shown in FIG.

  In addition, when the adhesive tape T is cut by the tape cutting blade 29a, the tape terminal portion, which is the tape portion between the cutting position (CT) and the attaching position TP, remains as it is (tape terminal attaching mode). As shown in FIG. 13 (c), the tape sticking unit 20 and the sticking object 18 are stuck on the sticking surface 18a by relatively moving the tape sticking unit 20 and the sticking object 18 by a distance (for example, 10 mm) according to the length of the tape terminal. (Tape terminal pasting process). As a result, the entire adhesive tape T from the sticking start position SP to the sticking end position EP is stuck to the adherend surface 18a. As described above, regarding the control mode of the relative movement of the tape applying unit 20, the length of the tape terminal corresponding to the distance between the cutting position CP and the applying position TP is taken into consideration, and the tape applying unit 20 is set to the applying end position EP. The relative movement of the object 18 and the tape applying unit 20 is stopped at a position before the tape terminal portion by the length of the tape terminal portion, and the tape cutting operation is performed here. What is necessary is just to control so that it may stick by the tape sticking roller 28a. Therefore, when the required tape application length matches the length of the tape terminal portion, it is not necessary to perform relative movement between the object to be applied 18 and the tape application unit 20.

  On the other hand, the tape portion between the cutting position CP by the tape cutting blade 29a and the holding position PP is a tape leading end portion Ta having a length La used for the next sticking operation. At this time, in order to stabilize the direction that protrudes from the holding position PP of the portion that should become the tape front end portion Ta, the adhesive tape T extends between the holding position PP and the application position TP at the time shown in FIG. It is preferable that the current direction is a tangential direction of the holding position PP, that is, the straight line Oa-PP and the straight line PP-TP are orthogonal to each other. In this way, the protruding direction from the holding position PP of the tape leading end portion Ta does not change before and after the cutting operation by the tape cutting blade 29a, so that the protruding direction and protruding shape of the tape leading end portion Ta can be stabilized.

  In the positional relationship shown in FIG. 10, the cutting position CP is arranged between the holding position PP and the sticking position TP, but as shown in the drawing, the cutting position CP is closer to the sticking position TP than the holding position PP. Is preferred. In particular, it is desirable that the tape cutting blade 29a be as close as possible to the application position TP as long as it does not interfere with the tape application roller 28a as in the illustrated example. Thereby, the length of the tape terminal part between the sticking position TP and the cutting position CP at the time of tape cutting becomes short, and the minimum sticking length of the adhesive tape T that can be stuck on the adherend surface 18a in this apparatus. Can be shortened.

  Further, in the above positional relationship, in order to enable the tape cutting operation by the tape cutting means 29, when the tape holding unit 25 is disposed at the retracted position P1, the tape holding unit 25 operates within the operating range of the tape cutting blade 29a. It is necessary not to interfere with. On the other hand, in the next tape application start operation after the tape cutting operation, the tape front end portion Ta is brought as close as possible to the tape application roller 28a, and the front end edge of the tape front end portion Ta is kept even if the length La of the tape front end portion Ta is short. In order to be able to be stuck on the adherend surface 18a, the tape holding part 25 is moved to the advance position P2. At this time, by setting the advance position P2 at which the tape holding portion 25 is disposed to a position where the tape holding portion 25 interferes with the cutting position CP (operation range when the tape cutting blade 29a is in the tape cutting operation), the leading end of the tape The length La of the portion Ta can be made sufficiently short.

  Furthermore, after the front end edge of the tape front end portion Ta is attached to the application start position SP as described above, the tape holding portion 25 returns from the advance position P2 to the retreat position P1. This is because, in the tape application start operation (tape application start process), the tape holding unit 25 is used to start application of the leading edge even if the length La of the tape front end part Ta is short as described above. In the tape application operation mode (tape application process), the refractive index of the installation path relating to the tape support roller 25a and the tape application roller 28a of the adhesive tape T is reduced, and the tape drawing resistance is reduced. This is because it is necessary to increase the distance between the tape support roller 25a and the tape applying roller 28a in the tape drawing direction PD in order to reduce the tension and suppress the tension applied to the adhesive tape T and the fluctuation thereof. In other words, when the tape holding portion 25 is disposed at the forward movement position P2, the distance between the tape support roller 25a and the tape application roller 28a is short as described above, so that the tape extending from the tape support roller 25a to the tape application roller 28a is removed. The erection path is largely refracted as shown in FIG. Therefore, when the tape sticking operation is performed in which the tape sticking unit 20 is relatively moved along the sticking surface 18a with respect to the sticking object 18 while the tape holding portion 25 is disposed at the forward movement position P2, the tape sticking unit 20 is used. The tension applied to the adhesive tape T is applied by the tape guide portions 22, 23, and 24 by being pulled out along the erected path where the adhesive tape T is refracted due to the relative movement of the object to the object 18. The tension is greater than a predetermined tension, and the tension applied to the adhesive tape T varies greatly depending on the position on the erected path. This causes a problem particularly when the tape material of the adhesive tape T is highly extensible. That is, it is assumed that not only a sticking operation with a uniform and stable tension can be realized, but also that the tape leading end portion Ta is caused to warp upward in the next sticking start operation. Therefore, as shown in FIGS. 8 and 9, in order to increase the distance between the tape support roller 25a and the tape application roller 28a, the tape holding portion 25 is returned to the retracted position P1 and the refractive index of the installation path is reduced. A sticking operation (tape sticking process) is performed.

  Further, when the tape cutting unit 20 is stopped before the sticking end position EP and the tape cutting mechanism 29 cuts the adhesive tape T by the tape cutting mechanism 29, the tape holding unit 25 is disposed at the retracted position P1 to thereby remove the tape. In addition to ensuring the operation stroke of the cutting blade 29a and increasing the orthogonality between the operation direction of the tape cutting blade 29a and the installation direction of the adhesive tape T at the cutting position CP, the cutting operation can be performed easily and reliably. Yes. The tape laying direction between the holding position PP and the sticking position TP at the time of the tape cutting operation is substantially the same as the protruding direction of the tape front end portion Ta from the tape holding portion 25 to the tape drawing destination side at the start of the next tape sticking. As described above, it is desirable to configure them to match. For this purpose, the backward position P1 (or the amount of movement between the backward position P1 and the forward position P2) is set in advance so as to be a value that matches the protruding direction of the tape front end portion Ta, or the tape cutting operation. It is also conceivable to set the retracted position P1 at the time to an optimum position different from the retracted position P1 at the time of the tape application operation.

  In the tape applicator 10 and the tape applicator unit 20 of the present embodiment configured and operating as described above, the tape holding unit 25 has the tape front end portion Ta having a free end in an unconstrained state on the tape withdrawal destination side. The adhesive tape T is held in a state of projecting obliquely downward, and the tape holding portion 25 is moved from the retracted position P1 to the tape drawing destination side and disposed at the advanced position P2, and then the tape applying roller 28a. The tip edge of the tape tip Ta is attached to the application surface 18a by the tape application roller 28a by advancing obliquely downward along the inclination direction arranged on the tape holding part 25 side as it approaches the application surface 18a. To do. This eliminates the need for a member for restraining and positioning the leading edge of the tape leading end portion Ta, which has been required in the prior art, so that the tape sticking mechanism can be simply configured. Further, the tape holding portion 25 is configured to be movable in the tape drawing direction PD, and the tape tip portion Ta is attached to the surface 18a to be attached by advancing the tape holding portion 25 during the sticking start operation. The length La of Ta can be shortened, and the sticking operation by the tape sticking roller 28a can be reliably performed. Further, by lowering the tape application roller 28a obliquely downward along the inclination direction approaching the tape holding part 25, the application position TP on the application surface 18a is set to the tape while avoiding interference of each part of the tape application mechanism. Since it can approach the holding | maintenance part 25, even if the length La of tape front-end | tip part Ta is short, the front-end | tip edge can be reliably and correctly affixed on the to-be-applied surface 18a. The shortening of the length La of the tape front end portion Ta can suppress the occurrence of tape sticking failure and lowering of the sticking accuracy by suppressing variations in the hanging state of the tape front end portion Ta and the position of the tip edge. There is an advantage that the compatibility with the material can be improved.

  Moreover, in this embodiment, the tape holding part 25 supports the said adhesive tape T supplied from the said tape guide part 22,23,24 from the said to-be-attached material 18 side, and the adhesive surface t1 of the said adhesive tape T And a tape support roller 25a rotatably supported on the outer periphery of the tape support roller 25a at the holding position PP from the opposite side of the object 18 to the tape support roller 25a. A tape holding member 25b that is in contact with the adhesive tape T and sandwiches the adhesive tape T with the outer peripheral surface of the tape support roller 25a. As described above, the tape holding portion 25 mechanically positions and holds the adhesive tape T by the clamping action, and therefore, compared to the structure in which the adhesive tape is sucked and held by the adsorption action, the tape holding section 25 is concerned with the material and characteristics such as the extensibility of the adhesive tape T. Therefore, since the positioning accuracy of the adhesive tape T (particularly, the leading edge thereof) can be increased, the adhesive accuracy of the adhesive tape T can be improved. In addition, such a holding structure, when holding the tape tip Ta of a predetermined length La so as to protrude in a state having a free end in an unconstrained state obliquely downward toward the tape drawing destination side, Compared to the structure that sucks and holds by suction, the positional accuracy and reproducibility of the holding position PP, the accuracy and reproducibility of the protruding direction of the tape tip Ta, and the stability of the tape holding force are all good. This is remarkably advantageous in that it is possible to increase the accuracy of the sticking start position SP of the tape tip portion Ta during the sticking start operation.

  In addition, the tape sticking unit 20 and the tape sticking apparatus 10 of this invention are not limited only to the above-mentioned example of illustration, Of course, various changes can be added within the range which does not deviate from the summary of this invention. For example, in the above embodiment, the tape that supports the adhesive tape from the side of the adherend surface 18a that is rotatably supported with respect to the support frame 25c configured to be movable in the tape drawing direction PD by the drive body 26. A support roller 25a and a rotating roller-like tape holding member 25b that contacts the adhesive tape T on the outer peripheral surface of the tape support roller 25a and is clamped between the outer peripheral surface of the tape support roller 25a at the holding position PP. However, any tape holding member 25b may be used as long as the tape holding member 25b can be held by abutting the adhesive tape T on the outer peripheral surface of the tape support roller 25a and sandwiching the adhesive tape T. It is not particularly limited, for example, it can be constituted by a claw-like member, a jaw-like member or the like configured to be able to contact and separate from the surface.

DESCRIPTION OF SYMBOLS 10 ... Tape sticking apparatus, 11 ... Base, 12a, 12b ... Support | pillar part, 13 ... Bridging part, 14 ..., 15 ... Support drive part, 16 ... Guide part, 17 ... Moving table, 18 ... To-be-attached object, 18a ... Surface to be pasted, 20 ... tape affixing unit, 20a ... unit mounting shaft, 20b ... bracket, 21 ... unit support, 21a ... notched opening, 22 ... tape reel, 23 ... pivot, 24a-24e ... guide Roller, 24g, 24h ... positioning frame, 25 ... tape holding part, 25a ... tape support roller, 25b ... tape holding member, 25bx ... flat surface, 25by ... outer peripheral cylindrical surface, 25c ... support frame, 25g ... guide member, 25ga ... Projection end part, 26 ... Driving body, 27 ... Driving part, 28 ... Tape application mechanism, 28a ... Tape application roller, 28b ... Application cylinder, 29 ... Tape cutting mechanism 29a ... tape cutting blade, 29b ... cutting cylinder, 30 ... position indicator, 30a ... reference light, 30b ... light spot, T ... adhesive tape, t1 ... adhesive surface, t2 ... non-adhesive surface, Ta ... tape tip, La ... length, R ... tape roll, SP ... sticking start position, EP ... sticking end position, PP ... holding position, TP ... sticking position, CP ... cutting position

Claims (12)

A tape guide (22, 23, 24) for guiding the adhesive tape (T);
A tape holding state in which the adhesive tape (T) supplied from the tape guide section (22, 23, 24) is positioned and held at a holding position (PP) and a tape released state in which the adhesive tape (T) is movably guided. And move between the retracted position (P1) on the tape withdrawal source side and the advanced position (P2) on the tape withdrawal destination side along the tape withdrawal direction (PD). A tape holder (25) configured to be capable of;
Tape affixing provided so as to be capable of advancing and retreating to the affixed surface (18a) of the affixed object (18) to which the adhesive tape (T) is to be affixed on the tape drawing destination side of the tape holding part (25). A roller (28a), and the tape application roller (28a) is advanced to the surface to be applied (18a), so that the tape draw-out destination can be removed from the tape holding part (25) disposed at the advance position (P2). A tape sticking mechanism (28) configured to be able to stick a tape front end (Ta) having a free end protruding toward the side to the sticking surface (18a) at a sticking position (TP);
The cutting position (CP) between the holding position (PP) by the tape holding part (25) arranged at the retracted position (P1) and the applying position (TP) by the tape applying roller (28a). A tape cutting means (29) configured to cut the adhesive tape (T);
The tape in a mode in which the tape front end portion (Ta) is protruded toward the tape withdrawal destination by controlling the tape holding portion (25), the tape applying mechanism (28), and the tape cutting means (29). The tape holding part (25) in the holding state is arranged at the advance position (P2), the tape application roller (28a) is advanced, and the tape front end (Ta) is attached to the application surface (18a). The tape sticking start operation to be performed, the tape holding part (25) is placed in the retracted position (P1) in the tape released state, and the tape sticking roller (28a) is moved relative to the sticking surface (18a). A tape application operation mode in which the adhesive tape (T) can be applied to the application surface (18a) while pulling out the adhesive tape (T), and the tape holding unit disposed at the retracted position (P1). (25) is set to the tape holding state, the adhesive tape (T) is cut by the tape cutting means (29), and the portion between the holding position (PP) and the cutting position (CP) is the tip of the tape. (Ta), a tape cutting operation in which a portion between the cutting position (CP) and the sticking position (TP) is a tape terminal portion, and the tape sticking roller (18a) along the sticking surface (18a) A control means (31) for sequentially realizing a tape terminal pasting mode in which the tape terminal portion can be pasted on the pasted surface (18a) by relative movement of 28a);
A tape pasting unit comprising:   The tape applying mechanism (28) allows the tape applying roller (28a) to advance and retreat in an inclined direction obliquely toward the tape holding portion (25) as it approaches the application surface (18a). It is comprised by these, The tape sticking unit of Claim 1 characterized by the above-mentioned.   The tape holding portion (25) is configured so that the tape front end portion (Ta) protrudes obliquely toward the application surface (18a) of a tape drawing destination during the tape application start operation. T) is hold | maintained, The tape sticking unit of Claim 1 or 2 characterized by the above-mentioned.   The tape cutting unit according to any one of claims 1 to 3, wherein the cutting position (CP) is set closer to the sticking position (TP) than the holding position (PP). .   The retracted position (P1) is a position where the tape holding part (25) does not interfere with the cutting position (CP) by the tape cutting means (29), and the advanced position (P2) is the tape holding part ( 25. The tape sticking unit according to claim 4, wherein 25 is a position that interferes with the cutting position (CP) by the tape cutting means (29).   The tape holding part (25) abuts the adhesive tape (T) supplied from the tape guide part (22, 23, 24) on the adhesive surface (t1) from the object (18) side. The tape support roller (25a) rotatably supported and supported in a state, and the holding position (PP) from the opposite side of the object (18) to the tape support roller (25a) at the holding position (PP). A tape holding member (25b) that abuts the adhesive tape (T) on the outer peripheral surface of the tape support roller (25a) and holds the adhesive tape (T) between the outer peripheral surface of the tape support roller (25a). The tape sticking unit according to any one of claims 1 to 5, wherein   The tape holding portion (25) is configured such that the tape tip portion (Ta) protrudes in a tangential direction at the holding position (PP) on the outer peripheral surface of the tape support roller (25a), and the adhesive tape (T) The tape sticking unit according to claim 6, wherein the tape sticking unit is held.   The tape holding member (25b) has a flat surface (25bx) that contacts the adhesive tape (T) on the outer peripheral surface of the tape support roller (25a) at the holding position (PP). Item 7. The tape application unit according to item 6.   The said flat surface (25bx) has the surface part extended in the tangential direction of the said holding position (PP) in the tape drawer destination side of the said holding position (PP). Tape application unit.   A guide member (25g) is attached to the tape holding member (25b) on an outer surface (25by) adjacent to the outer peripheral side of the flat surface (25bx), and the guide member (25g) is attached to the flat surface (25bx). The tape sticking unit according to claim 8 or 9, further comprising a protruding end portion (25ga) that protrudes outward along the outer periphery of the tape and prevents the tape tip portion (Ta) from warping. A tape application method for applying an adhesive tape (T) to an application surface (18a) of an object to be applied (18) using a tape application unit (20),
The tape applying unit (20) can be switched between a tape holding state in which the adhesive tape (T) is positioned and held at a holding position (PP) and a tape released state in which the adhesive tape (T) is guided to be movable. The tape is configured to be movable along the tape drawing direction (PD) between the retracted position (P1) on the tape drawing source side and the advanced position (P2) on the tape drawing destination side. The holding portion (25) and the tape holding destination side of the tape holding portion (25) are moved forward and backward with respect to the sticking surface (18a) of the sticking object (18) to which the adhesive tape (T) is stuck. The tape holding roller (28a) provided in a possible manner, and the tape holding roller (28a) disposed at the advance position (P2) by advancing the tape application roller (28a) to the application surface (18a) 2 A tape applying mechanism (28) configured to be able to apply a tape front end (Ta) having a free end protruding from the tape drawing destination side to the application target surface (18a) at an application position (TP); The cutting position (CP) between the holding position (PP) by the tape holding part (25) arranged at the retracted position (P1) and the applying position (TP) by the tape applying roller (28a). A tape cutting means (29) configured to cut the adhesive tape (T),
The tape holding portion (25) in the tape holding state is moved from the retracted position (P1) and arranged at the advanced position (P2) with the tape leading end (Ta) projecting toward the tape withdrawal destination. A tape drawing process,
A tape sticking start step of sticking the tape tip (Ta) to the sticking surface (18a) by advancing the tape sticking roller (28a) toward the sticking object (18);
The tape holding portion (25) is set in a tape released state and returned to the retracted position (P1), and the tape terminal length is between the cutting position (CP) and the applying position (TP) when the tape is applied. If the length is longer than the length of the portion, the tape sticking unit (20) is moved relative to the sticking object (18) along the sticking surface (18a) to execute the tape sticking operation. Otherwise, the tape application operation process to move to the next process as it is,
The tape cutting unit (20) is stopped with respect to the object to be pasted (18), and the tape holding unit (25) is set in the tape holding state, and then the tape cutting unit (29) performs the tape cutting operation. Process,
The tape which sticks the said tape terminal part to the said to-be-applied surface (18a) by moving the said tape-applying unit (20) relative to the to-be-attached object (18) along the said to-be-attached surface (18a). Terminal sticking process,
The tape sticking method characterized by performing sequentially.   The said tape sticking unit (20) as described in any one of Claims 1 thru | or 10, the support table (17) which supports the said to-be-sticked object (18), this support table (17), and the said tape sticking unit (20) and a drive means (12, 13, 14, 15, 16, 17) comprised so that relative movement is possible, The tape sticking apparatus characterized by the above-mentioned.

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