JP4789701B2 - Tape supply device, tape sticking device - Google Patents

Description

  The present invention relates to a tape supply device including a supply reel on which a tape is wound, a winding device for winding the tape fed out from the supply reel, and a tape sticking device using the supply device.

  For example, in the manufacturing process of flat panel displays such as liquid crystal display panels and plasma display panels, electronic parts such as TCP (Tape Carrier Package) are placed on the terminals provided on the side upper surfaces of glass substrates. Is attached through an adhesive tape made of an anisotropic conductive member formed of a thermosetting resin containing metal particles having a diameter of μm.

  Before the electronic component is attached to the terminal portion on the side surface of the substrate, the adhesive tape cut to a predetermined length is attached to the side surface of the substrate. The adhesive tape is wound around the supply reel in a state of being stuck to the release tape.

  When an electronic component is attached to the upper surface of the side portion of the substrate with an adhesive tape, first, the adhesive tape fed from the supply reel together with the release tape is cut into a predetermined length with a cutter. The cutting length of the adhesive tape at this time is set to a length corresponding to the electronic component attached to the upper surface of the side portion of the substrate.

  Next, after removing unnecessary portions of the adhesive tape cut by the cutter from the release tape by the removing means, the adhesive tape is pressed against the upper surface of the side part of the substrate supported by the backup tool by the pressure tool. Affixed. And the release tape from which the adhesive tape was removed by being affixed on the board | substrate is wound up by the winding reel as a winding device. Such prior art is disclosed in Patent Document 1.

Conventionally, by sticking adhesive tape to the substrate repeatedly, if a predetermined amount of release tape is taken up on the take-up reel, the take-up reel is replaced with a new take-up reel. Then, the above-mentioned adhesive tape is adhered to the substrate repeatedly by the above-described procedure.
JP 2003-51517 A

By the way, when a take-up reel that has taken up a predetermined amount of a release tape is replaced with a new take-up reel, a plurality of take-up reels must always be prepared. In addition, since the release tape wound around the take-up reel is unnecessary, it has been disposed of together with the take-up reel.
For this reason, a lot of take-up reels are used, which increases the cost.

  It is considered to prevent the cost from increasing by reusing the take-up reel. In that case, the release tape wound around the take-up reel must be removed. However, in order to remove the release tape wound on the take-up reel, the release tape must be rewound from the take-up reel, which requires a lot of labor and is not preferable.

  The present invention makes it possible to easily remove the tape taken up by the take-up device, thereby eliminating the need for preparing a plurality of take-up devices, and a tape using the supply device. It is in providing the sticking apparatus of.

The present invention is a tape supply device including a supply reel on which a tape is wound and a winding device that winds the tape fed out from the supply reel.
The winding device is
A take-up shaft that is rotationally driven by a drive source;
A first end member attached to the take-up shaft so as to rotate integrally with the take-up shaft and having a receiving portion on the inner surface;
A boss portion in which an insertion hole to be attached to the take-up shaft is formed at a central portion in the radial direction of the inner surface, and a second end that is detachably provided on the take-up shaft so as to face the first end member. Members,
The base end is rotatably connected to the mounting groove formed at a predetermined interval in the circumferential direction of the boss portion on the inner surface of the second end member with a rotational angle restricted radially outward. An abutting portion in which a rotational angle inward in the radial direction is limited by a small diameter portion formed in the boss portion, and a tip projecting in the direction of the inner surface of the second end member abuts on the receiving portion. A plurality of arms formed on,
The second end member is fastened and fixed to the take-up shaft, and the contact portion at the tip of the arm is pressed against the receiving portion, so that the arms cannot be rotated in the radial direction of the second end member. If the tape is wound on the outer peripheral surface formed by the plurality of arms, the second end member is tightened on the winding shaft. Fastening means for releasing the second end member together with the tape wound around the outer peripheral surface formed by the plurality of arms from the winding shaft by releasing the fixing. In the supply device.

  Preferably, the receiving portion has a truncated cone shape, and the contact portion is an inclined surface corresponding to the outer peripheral surface of the truncated cone shape.

This invention is a sticking device that cuts the adhesive tape attached to the release tape into a predetermined length and attaches it to the upper surface of the side part of the substrate,
A supply reel on which the release tape to which the adhesive tape is attached is wound;
A cutting part for cutting the adhesive tape fed out together with the release tape from the supply reel into a predetermined length;
A sticking part for sticking the adhesive tape cut by the cutting part to the substrate;
A winding device for winding the release tape after the adhesive tape is attached to the substrate;
The winding device is a tape sticking device having the structure described in claim 1.

  According to the present invention, the second end member is removed from the take-up shaft together with the tape wound around the arm whose base end is pivotally attached to the second end member, and the arm is used as a fulcrum with the base end as a fulcrum. Is rotated inward in the radial direction of the second end member, the tape wound around the arm can be removed.

  An embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1 shows a sticking apparatus in which a tape supply apparatus according to the present invention is used, and this sticking apparatus includes a substrate stage 5. The substrate stage 5 has a base 6, and a table 7 that is driven in the X, Y, and θ directions by an X drive source 6 a, a Y drive source 6 b, and a θ drive source 6 c is provided on the upper surface of the base 6.

  A substrate W made of a liquid crystal display panel is supplied and held on the table 7. A plurality of terminal portions (not shown) in which a plurality of terminals are formed at predetermined intervals are provided on one side of the upper surface of the substrate W.

  An adhesive tape 2 made of a double-sided adhesive anisotropic conductive member that is cut to a predetermined length as will be described later is attached to the upper surface of the side portion of the substrate W where the terminal portion is provided. It has become. The adhesive tape 2 is made of a thermosetting resin mixed with metal particles. An electronic component such as TCP is attached to each terminal portion via the adhesive tape 2.

  As shown in FIG. 1, the adhesive tape 2 is attached to a release tape 8 made of a translucent resin tape and wound around a supply reel 9, and a pair of guides with the adhesive tape 2 facing down. Guided by a roller 11. Thereby, the adhesive tape 2 runs so as to face the upper portion of the terminal portion of the substrate W placed on the table 7.

  Above the table 7, a pressurizing tool 13 constituting a sticking portion having a heater 13a is provided so as to be movable up and down by a vertical drive mechanism. The pressure-sensitive adhesive tape 2 is cut into a predetermined length by a cutting unit 23 as a cutting portion to be described later, and the portion, that is, the cutting portion 2a is positioned below the pressure tool 13 as described later.

  When the cut portion 2a of the adhesive tape 2 is positioned, the pressurizing tool 13 is lowered and the cut portion 2a of the adhesive tape 2 is attached to the terminal portion provided on the side surface of the substrate W. . Thereafter, the release tape 8 is peeled from the adhesive tape 2 by a release roller (not shown), and only the release tape 8 is taken up by a take-up device 12 having a configuration described later.

  The adhesive tape 2 and the release tape 8 are transported by a feeding device 20 as a feeding means. The feeding device 20 has a chuck 21 formed so as to be able to sandwich the release tape 8. The chuck 21 is guided in a non-rotatable manner by a guide body (not shown), and is linearly driven by a drive screw 22a that is rotationally driven by a servo motor 22b.

  Therefore, if the chuck 21 holds the release tape 8 and the drive screw 22a is driven to rotate, and the chuck 21 is driven in the direction indicated by the arrow X in FIG. 2 is extended in the X direction, and the cut portion 2 a can be positioned below the pressurizing tool 13.

  The adhesive tape 2 is cut to a predetermined length by the cutting unit 23 on the upstream side of the substrate W in the transport direction. The cutting unit 23 includes a cutter 24 and a peeling mechanism 25.

  The cutter 24 is disposed with its tip opposed below a portion that is pulled out from the supply reel 9 of the adhesive tape 2 and runs horizontally, and can be driven in the vertical direction by a drive mechanism (not shown). The peeling mechanism 25 is disposed to face the lower side of the adhesive tape 2 in the traveling direction of the adhesive tape 2 than the cutter 24.

  The cutting unit 23 includes a holding block 26 that is disposed to face the cutter 24 and the peeling mechanism 25 on the upper surface side of the adhesive tape 2 to be conveyed. The holding block 26 is slidably provided with an extruding member 27 that presses the upper surface of the adhesive tape 2 through the release tape 8. The pushing member 27 is pushed downward at a predetermined timing by a cylinder (not shown) or the like.

  As shown in FIG. 2, a peeling head 28 is disposed on the lower surface side of the adhesive tape 2 facing the push member 27. The peeling head 28 is attached to the base plate 29. The base plate 29 is provided with a supply reel 32 around which an adhesive tape 31 is wound. The adhesive tape 31 travels along the upper surface of the peeling head 28 and is wound around a take-up reel 33. Yes.

  The base plate 29 is driven up and down by a cylinder 34. When the base plate 29 is driven in the upward direction, the portion cut by the pair of cutting lines 2b of the adhesive tape 2 is pushed down by the pushing member 27. The cutting line 2b is formed when the cutter 24 is driven in the upward direction and abuts against a portion of the adhesive tape 2 facing the lower surface of the holding block 26.

  Accordingly, the portion 2c cut by the pair of cutting lines 2b of the adhesive tape 2 is pressed against the adhesive tape 31 of the peeling head 28, and the portion 2c is peeled from the release tape 8. In other words, the adhesive tape 2 has a pair of cutting lines 2b formed at predetermined intervals by the cutter 24 at both end portions of a predetermined length attached to the substrate W, and the portion 2c therebetween is removed by the peeling mechanism 25. After that, the remaining portion, that is, the above-described cutting portion 2 a having a predetermined length is adhered to the terminal portion 1 on the substrate W by the pressing tool 13.

  As shown in FIG. 2, the winding device 12 has a bracket 36 that is attached and fixed to the main body 35 of the sticking device. A U-shaped mount 37 is attached and fixed to the horizontal surface of the bracket 36 via a spacer 38.

  A drive source 39 in which a motor 39a and a speed reducer 39b are integrated is provided on one side of the gantry 37. The output shaft 39 c of the drive source 39 is connected to one end of the torque limiter 41. The other end of the torque limiter 41 is connected to one end of a winding shaft 42 provided with a flange 42a in the middle. One end of the take-up shaft 42 is rotatably supported on the other side of the mount 37 via a bearing 43.

  A disk-shaped first end member 44 is fitted and fixed to a portion of the winding shaft 42 that protrudes from the outer surface of the mount 37. A frustoconical receiving portion 45 projects from the inner surface of the first end member 44.

  A second end member 46 formed in a disk shape having the same diameter as the first end member 44 is detachably attached to the winding shaft 42 with the inner surface facing the inner surface of the first end member 44. It is installed. At the center of the inner surface of the second end member 46, a boss portion 47 in which an insertion hole 50 to be attached to the winding shaft 42 is formed is provided.

  As shown in FIGS. 3 and 4, the boss portion 47 has a large-diameter portion 47 a and a small-diameter portion 47 b, and is provided by bonding and fixing the large-diameter portion 47 a to the inner surface of the second end member 46. . In the large diameter portion 47a, four mounting grooves 48 are formed on the outer peripheral surface at intervals of 90 degrees in the circumferential direction.

  The base end of the arm 49 is rotatably supported by the supporting shaft 51 in each mounting groove 48. The tip of each arm 49 is formed in an abutting portion 52 having an inclined surface inclined at an angle corresponding to the outer peripheral surface of the receiving portion 45.

The arm 49 is rotatable along the radial direction of the second end member 46 with the support shaft 51 as a fulcrum, and the rotation range thereof is the side surface of the base end portion of the arm 49 and the inner bottom surface of the mounting groove 48. The rotation angle in the radially outward direction is limited by the contact of the first and second contacts, and the rotation angle inward in the radial direction is limited by the contact between the side surface of the base end portion and the outer peripheral surface of the small diameter portion 47b.

  Thereby, even if the second end member 46 is removed from the take-up shaft 42, the four arms 49 rotate radially outward until they collide with each other, or rotate inward in the radial direction until the ends of the arms 49 collide with each other. It is supposed not to. That is, the arm 49 has a position parallel to the axis of the winding shaft 42 shown by a solid line in FIG. 3 (this position is defined as a horizontal position) and an inclined position slightly rotated inward in the radial direction shown by a chain line. It can be rotated in the range. That is, the arm 49 can be rotated within an angle range indicated by θ in FIG.

  When the second end member 46 is mounted on the take-up shaft 42, the other end of the take-up shaft 42 that protrudes to the outer surface side of the second end member 46 has a cylindrical shape as shown in FIG. The collar 53 is attached. The end face of the collar 53 is pressed via a washer 55 by a head of a male screw 54 as a fastening means screwed to the other end face of the winding shaft 42.

  When the collar 53 is pressed by the male screw 54, the contact portion 52 at the tip of each arm 49 provided on the second end member 46 is formed on the receiving portion 45 provided on the inner surface of the first end member 44. Press contact with the outer peripheral surface. Thereby, each arm 49 is held in a non-rotatable state in a state parallel to the axis of the winding shaft 42 as shown by a solid line in FIG.

  The release tape having the adhesive tape 2 attached to the substrate W on the outer circumferential surface along the circumferential direction of the end members 44 and 46 formed by the four arms 49 held in a non-rotatable manner in this way. The tape 8 is wound up.

  According to the sticking apparatus having such a configuration, the adhesive tape 2 which is fed out from the supply reel 9 together with the release tape 8 and cut into the cut portion 2 a having a predetermined length by the cutter 24 is held on the substrate stage 5. When positioned with respect to the upper surface of the side portion of the substrate W, the pressing tool 13 descends to attach the cut portion 2a to the substrate W.

  The release tape 8 from which the adhesive tape 2 has been removed is wound up by the winding device 12. That is, the take-up shaft 42 is rotationally driven in synchronization with the movement of the feeding device 20 by the drive source 39, so that the release tape is formed on the outer peripheral surface formed by the four arms 49 that rotate integrally with the take-up shaft 42. 8 is wound up.

  When a predetermined amount of the release tape 8 has been wound on the winding device 12, the male screw 54 screwed onto the end surface of the winding shaft 42 is loosened, and the winding together with the collar 53 and the second end member 46 is performed. Remove from shaft 42.

  The release tape 8 is wound around the outer peripheral surface formed by the four arms 49 of the second end member 46 removed from the winding shaft 42. The arm 49 is rotatable from the horizontal state shown by the solid line in FIG. 3 to the state where the tip is slightly displaced radially inward as shown by the chain line with the base end as a fulcrum.

  Therefore, when the second end member 46 is removed from the take-up shaft 42, the release tape 8 wound around the four arms 49 of the second end member 46 is moved inwardly in the radial direction. Therefore, the release tape 8 can be quickly and easily removed from the winding device 12.

  When the release tape 8 that is no longer needed is removed from the arm 49 of the second end member 46 of the winding device 12, the second end member 46, the collar 53, and the washer 55 are sequentially attached to the winding shaft 42. Thereafter, the male screw 54 is screwed into the end surface of the winding shaft 42.

  Accordingly, since the second end member 46 is pressed by the collar 53, the contact portion 52 at the tip of the arm 49 contacts the receiving portion 45 of the first end member 44, and these arms 49 are held horizontally. Is done. As a result, the release tape 8 can be wound up.

  If the second end member 46 is removed from the take-up shaft 42 of the take-up device 12 in this way, the unnecessary release tape 8 taken up by the arm 49 of the second end member 46 can be quickly and easily removed. Can be removed. Moreover, if the release tape 8 that is no longer needed is removed, the second end member 46 can be reused by assembling it to the take-up shaft 42.

  The four arms 49 whose base ends are pivotally attached to the second end member 46 rotate in a horizontal state and within a range in which the distal end is slightly displaced radially inward of the second end member 46. The rotation range is limited by the large diameter portion 47 a and the small diameter portion 47 b of the boss portion 47.

  Therefore, even if the second end member 46 is removed from the take-up shaft 42 in order to remove the release tape 8 taken up by the arm 49, the arm 49 does not move in the radial direction of the second end member 46. There is no such thing as a big turn.

  Therefore, when the second end member 46 is incorporated into the take-up shaft 42, it is incorporated while holding the abutment portion 52 at the tip of the arm 49 so as to contact the receiving portion 45 provided on the first end member 44. Therefore, it is possible to easily perform the assembling work.

  In the above-described embodiment, the tape supply device is used as an example of the tape sticking device. However, the supply device has a carrier tape on which a semiconductor chip is mounted on the supply reel. A device for winding the carrier tape in a so-called TCP (Tape Carrier Package) production line, in which a portion on which the semiconductor chip is mounted is punched out from the carrier tape drawn out from a mold, and then the carrier tape is wound up It can also be applied.

The schematic block diagram of the sticking apparatus of the tape which shows one embodiment of this invention. The side view which carried out the partial cross section of the winding device of the tape used for the said sticking apparatus. The expanded sectional view of the 1st end member used for the above-mentioned winding device. The top view of the boss | hub part provided in the inner surface of a 2nd end member.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 2 ... Adhesive tape, 8 ... Release tape, 9 ... Supply reel, 12 ... Winding device, 39 ... Drive source, 42 ... Winding shaft, 44 ... First end member, 45 ... Receiving part, 46 ... First 2 end members, 47... Boss, 48 .. mounting groove, 49... Arm, 51.

Claims (3)

A tape supply device comprising a supply reel on which a tape is wound and a winding device for winding the tape fed from the supply reel,
The winding device is
A take-up shaft that is rotationally driven by a drive source;
A first end member attached to the take-up shaft so as to rotate integrally with the take-up shaft and having a receiving portion on the inner surface;
A boss portion in which an insertion hole to be attached to the take-up shaft is formed at a central portion in the radial direction of the inner surface, and a second end that is detachably provided on the take-up shaft so as to face the first end member. Members,
The base end is rotatably connected to the mounting groove formed at a predetermined interval in the circumferential direction of the boss portion on the inner surface of the second end member with a rotational angle restricted radially outward. An abutting portion in which a rotational angle inward in the radial direction is limited by a small diameter portion formed in the boss portion, and a tip projecting in the direction of the inner surface of the second end member abuts on the receiving portion. A plurality of arms formed on,
The second end member is fastened and fixed to the take-up shaft, and the contact portion at the tip of the arm is pressed against the receiving portion, so that the arms cannot be rotated in the radial direction of the second end member. If the tape is wound on the outer peripheral surface formed by the plurality of arms, the second end member is tightened on the winding shaft. Fastening means for releasing the second end member together with the tape wound around the outer peripheral surface formed by the plurality of arms from the winding shaft by releasing the fixing. Feeding device.   2. The tape supply device according to claim 1, wherein the receiving portion has a truncated cone shape, and the contact portion is an inclined surface corresponding to the outer peripheral surface of the truncated cone shape. A sticking device that cuts the adhesive tape attached to the release tape into a predetermined length and attaches it to the upper surface of the side of the substrate,
A supply reel on which the release tape to which the adhesive tape is attached is wound;
A cutting part for cutting the adhesive tape fed out together with the release tape from the supply reel into a predetermined length;
A sticking part for sticking the adhesive tape cut by the cutting part to the substrate;
A winding device for winding the release tape after the adhesive tape is attached to the substrate;
The said winding apparatus is the structure described in Claim 1, The sticking apparatus of the tape characterized by the above-mentioned.

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