JP2006190881A - Equipment and method for film conveyance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveyance equipment for films preventing a film carrier tape from deviating from the guide as well as a film from generating backlash, in addition to avoiding troubles such as adhesion of foreign substances and ocurrence of a defect, at the time of conveying a film carrier tape for mounting electronic components such as a TAB tape along with the guide. <P>SOLUTION: Upper positioning blocks 34 and 35 are arranged above the lower positioning blocks 32 and 33. The upper positioning blocks 34 and 35 are arranged in the state where they are always pressed by the lower part positioning blocks 32 and 33 via compression springs 38, and besides, elastic rollers 36 and 37 are attached on the these upper positioning blocks 34 and 35. A long length film 12 is guided in such aspect that its upper surface side and undersurface side are respectively put in between the press rollers 36 and 37 and the positioning blocks 32 and 33. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

More particularly, the present invention relates to a film carrier tape for mounting electronic components (TAB (Tape Automated Bonding) tape, COF (Chip on Film) tape, BGA (BGA)) in which a circuit pattern of a conductor is formed on an insulating film. Suitable for transporting Ball Grid Array (CSP), CSP (Chip Size Package), ASIC (Application Specific Integrated Circuit) tape (hereinafter simply referred to as “film carrier tape or film carrier tape”). The present invention relates to a film transport apparatus and a film transport method.

  In the field of the electronics industry, printed wiring boards on which electronic components such as IC (integrated circuit) chips and LSI (large scale integrated circuit) chips are mounted are used. Recent electronic devices are represented by, for example, mobile phones. Thus, electronic devices are required to be smaller and lighter, more functional, more reliable, and less expensive.

  For example, as an electronic component mounting method for realizing such characteristics as reduction in size and weight of an electronic device, a device is mounted on a film carrier tape for mounting an electronic component such as a TAB tape. Such a film carrier tape for mounting electronic components is obtained by attaching a conductive metal foil such as copper foil to an insulating film such as polyimide via a resin adhesive such as epoxy, and photosensitive resin on the surface of the conductive metal foil. After applying and developing so as to obtain a desired wiring pattern, the conductive metal foil is etched using the photosensitive part or non-photosensitive part of this resin as a masking material, and then a solder resist is formed. It is manufactured by applying, curing and plating.

  Recently, there has been a demand for smaller and lighter electronic devices, and high-density mounting of electronic components is required. Along with this, the wiring width of film carrier tape for mounting electronic components has been reduced, and the film thickness has been reduced. (50 μm or less) is progressing.

  Under such circumstances, a two-layer flexible substrate in which a conductive layer is formed directly on an insulating film by, for example, applying a thin electrolytic copper plating on the insulating film has been developed and used for a COF (Chip On Film) tape or the like. It came to be able to.

  Incidentally, as shown in FIG. 5, the electronic component mounting film carrier tape 4 is formed with electronic component mounting units 6, 6... In which conductive wiring patterns are formed side by side in the tape longitudinal direction. At both ends in the tape width direction, sprocket holes 5 provided for conveyance are formed side by side in the tape longitudinal direction. Here, the tape width S is usually 35 to 70 mm, and in some cases, it is about 200 mm, and the pitch P of the sprocket holes 5 is generally 4.75 ± 0.03 mm.

  And in many processes, such as tape feeding and positioning for inspection and manufacturing, it is performed with reference to the sprocket hole 5. For this reason, in order to improve the reliability of the film carrier tape 4 for electronic component mounting, it is required that this conveyance is performed appropriately.

In particular, in consideration of market trends toward the recent thinning of product tapes (50 μm or less) and COF tapes, reliable and stable tape transport is required.
FIG. 6 shows a conventional film transport apparatus disclosed in Patent Document 1 that transports such a film carrier tape for mounting electronic components.

  In this transport device, for example, the elastic plastic band 2 is disposed on the upper surface of the guide groove 7 provided with the step portion 9 having a substantially L-shaped cross section for transporting the TAB tape 1. Prevents drooping.

On the other hand, FIGS. 7A and 7B show another conventional film transport apparatus.
In this film transport apparatus, a flat pressing plate 8 is disposed on the upper surface of the tape guide 3 having an L-shaped cross section to close the upper portion of the opening, and the TAB tape 1 is placed in the tape guide 3 whose upper portion is closed. I am trying to supply it.
Japanese Patent Laid-Open No. 2004-87792

  By the way, in the film transport apparatus of FIG. 6 disclosed in the above-mentioned Patent Document 1, when the TAB tape 1 is transported horizontally with the center portion warped downward, the back surface of the center portion of the tape 1 and the elastic plastic band 2 There is a problem that foreign matter adheres to the back surface of the tape or scratches.

  Further, in the film transport apparatus of FIG. 6, if the TAB tape 1 is warped, the central portion of the tape rises due to the warp, and the TAB tape 1 comes off the guide groove 7 when transported horizontally. This problem occurs.

  Here, in the TAB tape 1 or the like, since the conductive metal foil is attached to an insulating film such as polyimide, the rigidity is different between the portion where the metal foil is attached and the portion where the metal foil is not attached. However, there is a current situation that partial warpage is likely to occur.

  Furthermore, the film transport apparatus shown in FIG. 6 has a mechanism for controlling the flutter when the TAB tape 1 flutters in the vertical direction during transport even if it does not come off the guide groove 7. Absent. Therefore, when this fluttering occurs, the problem of foreign matter adhesion and scratches increases.

  Assume that the elastic plastic band 2 is removed and used in the film transport apparatus of FIG. In this case, if the tape is transported in the horizontal direction in a state where the warp in the vertical direction has occurred, there is a possibility that both ends are detached from the guide groove 7 because there is no tape support. Thus, if it remove | deviates from the guide groove 7, adhesion of a foreign material and generation | occurrence | production of a damage | wound will arise easily and it will develop even if the tape itself may bend | folded depending on the case.

    7A and 7B, for example, although it is possible to prevent the TAB tape 1 from jumping upward, if the warp occurs upward, the holding plate 8 If the warp occurs downward, the tape guide 3 will damage the TAB tape 1 as a product.

  7A and 7B, a presser plate 8 is added above the sliding surface of the product tape, and the fluttering of the tape can be pressed down by the presser plate 8. If the tape is warped upward or downward, the tape 1 may be detached from the guide groove 7.

Further, in the case of FIGS. 7A and 7B, in order to make the distance between the presser plate 8 and the tape sliding surface correspond to the thickness of the product tape (30 μm to 150 μm), the maximum value of the tape thickness is set. It is necessary to set the assumed interval. Otherwise, every time the thickness of the tape changes, if the spacing is not taken into account, the spliced portion in which the end portions of the product tape are bonded to each other with the adhesive tape is sent. Will not be able to pass through and will be clogged.

  In particular, in the electronic component mounting film carrier tape, the ends to be joined of the film carrier tape or the ends of the film carrier tape and the lead tape are joined to each other with an adhesive tape. In addition, when bonding with an adhesive tape, there are two methods, a method of sticking to only one surface of the joint part or the back surface, and a method of sticking to both surfaces of the front surface and the back surface. Clogging is likely to occur when trying to pass.

  In particular, a sensor is provided in the middle of the transport path, and the sensor detects the passage of the sprocket hole 5 to measure the transport length of the TAB tape 1, measure the transport speed, or perform a re-inspection. When the rewind length is measured when transported in the reverse direction, if the tape 1 is not transported stably, the sprocket hole detection is skipped and cannot be detected correctly. If uncertain detection of the sprocket hole 5 is performed, management of the edit length of the product or the like is impaired.

  In view of such a conventional problem, the present invention, for example, when a film carrier tape for mounting an electronic component such as a TAB tape is transported along a tape guide, the film carrier tape may be detached from the tape guide. Another object of the present invention is to provide a film transport apparatus that prevents the occurrence of fluttering during transport and, in addition, prevents problems such as adhesion of foreign matter and generation of scratches.

  In addition, another object is to provide a film transport apparatus and a film transport method that can detect sprocket holes and correctly detect data such as transport length and unload speed.

The film conveying apparatus according to the present invention is
A long film having sprocket holes formed on both side edges at a predetermined pitch is passed between the delivery reel and the take-up reel, and the film is placed in the middle of the conveyance path formed between these two reels. In the film conveying apparatus in which positioning guide means for guiding while regulating the movement in the width direction of the film,
The positioning guide means includes a pressing roller having a cushioning property, and the movement of the upper surface side of the film is regulated by the pressing roller.

Here, the positioning guide means includes
First positioning guide means for restricting movement in the width direction of a first sprocket hole forming region formed on one side edge of the film;
Second positioning guide means for restricting movement in the width direction of the second sprocket hole forming region formed on the other side edge of the film,
Each of the first positioning guide means and the second positioning guide means regulates movement of the corresponding side edge in the width direction while capturing one side edge or the other side edge of the film. A first lower positioning block portion or a second lower positioning block portion provided with a positioning portion having a substantially L-shaped cross section;
The first lower positioning block portion or the second lower positioning block portion is disposed above the first lower positioning block portion or the second lower positioning block portion, and always approaches the first lower positioning block portion or the second lower positioning block portion by the biasing force of the elastic member. A first upper positioning block portion or a second upper positioning block portion biased in a direction to
The outer peripheral surface is supported by the first upper positioning block portion or the second upper positioning block portion, and the outer peripheral surface thereof is a flat film transport surface of the first lower positioning block portion or the second lower positioning block portion. A first pressing roller or a second pressing roller arranged so as to face,
The long film is formed on the first sprocket forming region formed on one side edge or on the other side edge by the first positioning guide means and the second positioning guide means. Further, the upper surface side and the lower surface side of the second sprocket formation region are sandwiched between the first pressing roller and the first positioning block portion, or the second pressing roller and the second positioning block portion, respectively. It is preferable to be guided.

  According to the present invention having such a configuration, when the electronic component mounting film carrier tape is conveyed, both side edges are provided by means that act independently of the first positioning guide means and the second positioning guide means. In addition to being guided, the upper region of the film carrier tape is regulated by the first pressing roller and the second pressing roller, so even if warping has occurred, the warping can be corrected. . Moreover, this prevents the detachment from the guide groove. Furthermore, since the pressing roller corrects the warp while rotating by contact with the product tape, it does not slide with the product tape, and the generation of scratches can be prevented as much as possible. Furthermore, adhesion of foreign matter can be prevented. Further, since the portion where the film is slid by the outer peripheral surface of the pressing roller is a sprocket formation region portion, even if this portion is rubbed, the product itself is not affected at all.

Further, the pressing roller can be transported without causing clogging even if a tape portion having an increased thickness is transported by contraction of the elastic member.
Moreover, it is possible to prevent the tape surface from being damaged by ensuring an appropriate clearance between the pressing roller and the tape sliding surface of the lower positioning block portion.

  Here, in the present invention, at least one positioning guide means of the first positioning guide means or the second positioning guide means can be moved and adjusted in a direction approaching or moving away from the other positioning guide means. It is preferable to arrange | position.

If it is such a structure, it can apply easily also to the conveyance of the film carrier tape for electronic component mounting from which width differs.
In the present invention, at least one of the first lower positioning block portion and the second lower positioning block portion may be provided with a sensor for counting the sprocket.

If it is such a structure, a conveyance speed, conveyance length, etc. can be correctly detected by measuring a sprocket hole with the said sensor in the middle of conveyance, for example.
Here, the sensor is preferably provided at a position corresponding to a sprocket standard super-wide or a sprocket standard wide.

If a sensor is provided at such a position, it can be dealt with by simply switching whether the sprocket standard is super-wide or wide.
Furthermore, the film transport apparatus as described above can be attached to an appearance inspection of a film carrier tape for mounting electronic components.

In addition, the film transport method according to the present invention includes:
A long film having sprocket holes formed on both side edges at a predetermined pitch is passed between the delivery reel and the take-up reel, and the film is placed in the middle of the conveyance path formed between these two reels. In the film conveying method in which positioning guide means for guiding while restricting movement in the width direction of the film is arranged,
The positioning guide means includes a pressing roller having a cushioning property, and the movement of the upper surface side of the film is regulated by the pressing roller.

  According to such a method, it can convey, without damaging a film.

  According to the film transport apparatus and the film transport method according to the present invention, the influence of warpage or the like can be alleviated by pressing the film from both the upper and lower directions. Further, this can prevent the guide groove from dropping off due to warpage or the like. Further, since the influence of warp and the like can be mitigated and drooping can be prevented, there is no possibility that dust is attached or scratched. Further, since the pressing roller rotates when it comes into contact with the film, it is difficult to be damaged. Even if the slidable contact portion is damaged by a pressure roller or the like, the portion is a sprocket formation region and does not affect the quality of the product, so the product value is not impaired. .

  Furthermore, since the pressing roller can move in a direction away from the film when a predetermined force is applied by the elastic member, even if a thick portion is conveyed, clogging may occur due to the thickness. Absent.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a transport device for a film carrier tape for mounting electronic components according to an embodiment of the present invention, and FIGS. 2 to 4 show positioning guide means employed in the transport device of FIG. is there.

  The film transport apparatus 10 includes a delivery reel 14 that feeds out an electronic component mounting film carrier tape 12, and a take-up reel 16 that winds up the electronic component mounting film carrier tape 12 delivered from the delivery reel 14. While the tape 12 delivered from 14 is taken up by the take-up reel 16, predetermined processing, for example, discrimination of defects formed in the conductor wiring pattern or the like (visual appearance inspection or AOI) is performed. In order to inspect such defects, it is important to make the tape 12 flat without warping or slack.

Positioning guide means 20 configured to perform a predetermined process is disposed between the two reels 14 and 16.
In FIG. 1, reference numerals 22 and 24 denote guide rolls. The guide rolls 22 and 24 convey the electronic component mounting film carrier tape 12 to the positioning guide means 20 in a substantially horizontal direction. . Reference numerals 21 and 23 also denote guide rolls. Reference numerals 25 and 27 denote dancer rolls that apply tension to the feeding reel 14 side or the take-up reel 16 side with respect to the electronic component mounting film carrier tape 12 by their own weight.

  In FIG. 1, the delivery-side dancer roll 25 abuts against the film carrier tape 12 positioned between the delivery reel 14 and the guide roll 22 on the roll surface from above to give its own weight. As a result, a tension is applied to the carrier tape 12 positioned between the guide roll 22 and the guide roll 21 in the feeding side, that is, in the direction opposite to the transport direction.

The take-up dancer roll 27 abuts against the film carrier tape 12 positioned between the take-up reel 16 and the guide roll 24 on the roll surface from above to give its own weight. Thus, tension is applied to the carrier tape 12 positioned between the guide roll 23 and the guide roll 24 in the winding side, that is, in the transport direction.

  The weight of the dancer roll 27 on the winding side is configured to be heavier than the weight of the dancer roll 25 on the delivery side. Accordingly, the film carrier tape 12 is given a tension in the winding side, that is, in the transport direction, as a subtraction of tension (pulling force) applied in opposite directions by the weight of each dancer roll.

  On the other hand, on the downstream side of the positioning guide means 20, a transport driving unit 42 for pulling out the electronic component mounting film carrier tape 12 at a predetermined speed is installed. The transport driving unit 42 includes a drive gear 44 and a presser roll 46. It consists of and. The drive gear 44 is disposed such that its drive roll surface comes into contact with the film carrier tape 12 from below. Further, projections are formed at both ends of the drive gear 44 at a predetermined pitch, and these projections are sequentially engaged with the sprocket holes 5 formed at both ends of the long tape 12.

  When the transport drive unit 42 is driven in such a state, the tape leading end side on the take-up reel 16 side is pulled, so that the tape 12 with the sprocket holes 5 on both ends locked to the protrusions is in a stable posture and It will be sent at a predetermined speed.

Below, the positioning guide means 20 which is the main component of a present Example is demonstrated.
The positioning guide means 20 is composed of two guide means: a first positioning guide means 26 configured in the right half in the state of FIG. 2 and a second positioning guide means 28 configured in the left half. The two positioning guide means 26 and 28 guide the both ends of the electronic component mounting film carrier tape 12 so as to be sandwiched between them.

Since the first positioning guide means 26 and the second positioning guide means 28 have substantially the same configuration, the first positioning guide means 26 will be described below.
The first positioning guide means 26 has a first lower positioning block portion 32 having a substantially L-shaped positioning portion 30 on the upper surface, and the first lower positioning block portion 32 is the length of the film transport path. A lower part on one side is formed along the length direction. Further, a small first upper positioning block portion 34 having a lower height is disposed above the first lower positioning block portion 32. The first upper positioning block portion 34 is inserted with a compressed spring 38 from the upper surface side, and the pin member 40 is inserted through the first upper positioning block portion 34. The nut 41 is screwed through. As a result, the first upper positioning block portion 34 and the first lower positioning block portion 32 are pressed so as to be in constant contact by the urging force of the spring 38. However, when a force greater than the biasing force of the spring 38 acts on the first upper positioning block portion 34 from below, the first upper positioning block portion 34 is separated from the first lower positioning block portion 32.

  On the other hand, a first pressing roller 36 is rotatably supported by a shaft 39 on the inner surface of the first upper positioning block portion 34. The outer peripheral surface 36a of the first pressing roller 36 is disposed so as to oppose the flat film transport surface 30a in the L-shaped positioning section 30 formed on the upper surface of the first lower positioning block portion 32 described above. A gap (35 μm to 75 μm) is interposed between the transport surface 30a and the film carrier tape 12 so that the film carrier tape 12 can be sandwiched lightly.

In the same way as the first positioning guide means 26, the second positioning guide means 28 formed on the left half in FIG. 2 is also lowered by the second lower positioning block 33 and an urging force of an elastic member, for example, a spring 38. The second upper positioning block 35 pressed against the shaft 39 and the shaft 39
The second pressing roller 37 and the like supported by the first and second rollers, and the like, have the same effects as the respective components on the first positioning guide means 26 side.

  Further, in this embodiment, as illustrated in FIG. 4, a non-contact type sensor 50 that detects passage of the sprocket hole 5 in the middle of the first lower positioning block portion 32 and the second lower positioning block portion 33. Are attached to each.

  Among these sprocket sensors 50, 50, for example, the sensor 50 installed on one positioning guide means 26 side corresponds to the super-wide sprocket standard, and the sensor 50 installed on the other positioning guide means 28 side is wide. It is preferable to arrange at a position corresponding to the sprocket standard.

  By arranging the two sensors 50 and 50 at such positions, by selecting and using any one of the sensors 50, it is possible to cope with both super-wide and wide. That is, it is possible to switch and use the sensor as it is without changing the position of the sensor with respect to the sprocket standard.

  By installing the sensors 50 on both sides in this way, passage of the sprocket holes 5 formed at both ends is detected. That is, the distance traveled by the film carrier tape 12 is determined. In addition, by detecting the number of passages through the sprocket holes 5 with the sensor in this way, it is possible to measure the transported length, the transport speed, and the like.

The film transport apparatus according to this embodiment is configured as described above, and the operation thereof will be described below.
Now, a long film carrier tape 12 on which a large number of wiring patterns are formed is wound around the delivery reel 14, and predetermined processing such as appearance inspection is performed on the film 12. For example, the film carrier tape 12 is unwound from the feed reel 14 toward the positioning guide means 20 in order to inspect the defect that has occurred in the semiconductor wiring pattern, etc., temporarily stops in the middle of the conveyance, and is stopped by a CCD camera or the like. After the wiring pattern is imaged, the pattern defect is determined, and then conveyed again and taken up on the take-up reel 16.

  When performing such an inspection, it is necessary to detect that the detected portion has reached a predetermined position for the inspection. In this case, the film carrier tape 12 is detected by the sensor 50 shown in FIG. 5 is detected. Then, when the film carrier tape 12 is fed a predetermined length, the driving is stopped once, and the presence or absence of a defect is identified by, for example, a CCD camera (not shown).

  Thus, the film carrier tape 12 fed by a predetermined length is taken up on the take-up reel 16 while being inspected. In addition, since a predetermined tension is applied to the film carrier tape 12 in the middle of the conveyance, the film carrier tape 12 can be conveyed in a substantially tensioned state without occurrence of slack.

  Further, when the film 12 sent out from the unwinding reel 14 is sent to the positioning guide means 20 by the driving force of the drive conveyance section 42, both side edges of the film 12 are the first positioning in the positioning guide means 20. It is captured by the guide means 26 and the second positioning guide means 28 and is conveyed downstream while its movement in the width direction is restricted.

At this time, as shown in FIG. 2, the film carrier tape 12 is conveyed in such a manner that the sprocket formation regions at both ends where the sprocket holes 5 are formed are sandwiched vertically.
For example, on the first positioning guide means 26 side, the film 12 is conveyed while being sandwiched between the upper surface of the lower positioning block portion 30 and the first pressing roller 36. Further, on the second positioning guide means 28 side, the sheet is conveyed while being sandwiched between the peripheral surfaces of the second lower positioning block portion 33 and the second pressing roller 37. In addition, at this time, as shown in FIG. 1, appropriate tension is applied to the upstream side and the downstream side of the positioning guide means 20 by the dancer rolls 25 and 27, respectively. It is transported in a stable state. If the film 12 is warped, the influence of the warp can be alleviated. Therefore, the surface of the film 12 is not damaged or the film 12 is not detached from the positioning portion 30. Of course, when the roller and the film come into contact with each other during the conveyance of the film 12, the pressing rollers 36 and 37 rotate, so that the surface of the film 12 is prevented from being damaged.

  Also, if a splice portion of the film that is thicker than the surroundings is conveyed at the joint between the tapes, etc., and a predetermined force acts on the first pressing roller 36 and the second pressing roller 37 In addition, the first roller 36 and the second pressing roller 37 can be separated from the first lower positioning block portion 32 or the second lower positioning block portion 33. That is, when the pressing rollers 36 and 37 are pressed upward by the pressure applied from the film 12 and the pressing force is larger than the downward biasing force of the spring 38, the upper positioning block portion 34 resists the biasing force. , 35 are moved upward, so that the film conveyance is not stopped. It can be conveyed at a predetermined speed.

Furthermore, even if the sprocket formation region is scratched or the like, this portion does not affect the product and therefore does not cause a problem.
According to the present embodiment, the film is sandwiched from both the upper and lower sides using the sprocket formation regions at both ends that may be scratched, and the first presser that is the upper presser when a predetermined force or more is applied. Since the second pressing rollers 36 and 37 are allowed to escape in a direction away from the film, it is possible to prevent the tape from being scratched or foreign matter adhering thereto. Further, even when a splice portion having a thickened joint portion passes through the adhesive tape, the splice portion can be allowed to pass therethrough.

  Further, during the conveyance, even if the tape is warped by the pressing rollers 36 and 37, the jumping is prevented, so that it does not come off the positioning block portion. Furthermore, since the film is conveyed while being pressed from both the upper and lower directions, occurrence of fluttering of the film carrier tape 12 can be prevented.

Moreover, when there is a warp in the film, the warp can be mitigated by the pressing roller.
Furthermore, since the warpage is alleviated when a film defect is inspected with a CCD camera or the like, the inspection can be carried out in as flat a state as possible.

Therefore, it is possible to accurately perform predetermined inspection and processing by the CCD camera or the like on the film 12 arranged at the correct position.
The film 12 has various widths such as 35 mm, 48 mm, 70 mm, and the like. When transporting tapes having different widths, the first positioning guide means 26 or the second positioning guide means is used. If at least one of the positioning guide means 28 is installed so as to be movable and adjustable with respect to the other positioning guide means, and fixed with a plunger pin during use, it can be conveyed in any width. it can.

Although the film transport apparatus according to one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment.
For example, in the above embodiment, the sensor 50 is installed in the first and second lower positioning block portions 32 and 33 of the positioning guide means 20, but instead, on the downstream side of the positioning guide means 20. Alternatively, it can be provided upstream.

  Moreover, in the said Example, although the TAB tape was illustrated as a film conveyed, for example, it can apply to various film carrier tapes, such as a COF tape, a BGA tape, a CSP tape, and an ASIC tape.

  Further, in the above-described embodiment, the process of detecting the defect of the wiring pattern is performed by the CCD camera. However, the present invention can be applied to other processes such as marking in the middle of the conveyance path. .

FIG. 1 is a schematic configuration diagram of a film transport apparatus according to an embodiment of the present invention. FIG. 2 is a side view of positioning guide means in the film conveying apparatus shown in FIG. FIG. 3 is a top view of the positioning guide means shown in FIG. 4 is a sectional view of the positioning guide means shown in FIG. 2 on the first positioning guide means side. FIG. 5 is a schematic view showing a part of a film carrier tape employed in one embodiment of the present invention. FIG. 6 is a cross-sectional view of a conventional film transport apparatus disclosed in Japanese Patent Application Laid-Open No. 2004-87772. 7 (A) and 7 (B) show another conventional film conveying apparatus, FIG. 7 (A) is a top view thereof, and FIG. 7 (B) is a side view of FIG. 7 (A). It is.

Explanation of symbols

5 sprocket hole 10 film transport device 12 film carrier tape 14 delivery reel 16 take-up reel 20 positioning guide means 21, 22, 23, 24 guide rolls 25, 27 dancer roll 26 first positioning guide means 28 second positioning guide means 30 Positioning portion 30a Film transport surface 32 First lower positioning block portion 33 Second lower positioning block portion 34 First upper positioning block portion 35 Second upper positioning block portion 36 First pressing roller 36a Outer peripheral surface 37 First 2 pressing roller 38 spring 39 shaft 40 pin member 44 drive gear 50 sensor

Claims (7)

A long film having sprocket holes formed on both side edges at a predetermined pitch is passed between the delivery reel and the take-up reel, and the film is placed in the middle of the conveyance path formed between these two reels. In the film conveying apparatus in which positioning guide means for guiding while regulating the movement in the width direction of the film,
The positioning guide means includes a pressing roller having a cushioning property, and the movement of the upper surface side of the film is regulated by the pressing roller. The positioning guide means includes
First positioning guide means for restricting movement in the width direction of a first sprocket hole forming region formed on one side edge of the film;
Second positioning guide means for restricting movement in the width direction of the second sprocket hole forming region formed on the other side edge of the film,
Each of the first positioning guide means and the second positioning guide means regulates movement of the corresponding side edge in the width direction while capturing one side edge or the other side edge of the film. A first lower positioning block portion or a second lower positioning block portion provided with a positioning portion having a substantially L-shaped cross section;
The first lower positioning block portion or the second lower positioning block portion is disposed above the first lower positioning block portion or the second lower positioning block portion, and always approaches the first lower positioning block portion or the second lower positioning block portion by the biasing force of the elastic member. A first upper positioning block portion or a second upper positioning block portion biased in a direction to
The outer peripheral surface is supported by the first upper positioning block portion or the second upper positioning block portion, and the outer peripheral surface thereof is a flat film transport surface of the first lower positioning block portion or the second lower positioning block portion. A first pressing roller or a second pressing roller arranged so as to face,
The long film is formed on the first sprocket formation region formed on one side edge or the other side edge by the first positioning guide means and the second positioning guide means. Further, the upper surface side and the lower surface side of the second sprocket formation region are sandwiched between the first pressing roller and the first positioning block portion, or the second pressing roller and the second positioning block portion, respectively. A film conveyance device characterized by being guided.   Of the first positioning guide means or the second positioning guide means, at least one positioning guide means is arranged to be movable and adjustable in a direction approaching or moving away from the other positioning guide means. The film transport apparatus according to claim 2, wherein   4. The film transport device according to claim 2, wherein a sensor for counting the sprocket is provided in at least one of the first lower positioning block portion or the second lower positioning block portion. .   5. The film transport device according to claim 4, wherein the sensor is provided at a position corresponding to a sprocket standard super-wide or a sprocket standard wide.   6. The film transport apparatus in an inspection apparatus, wherein the film transport apparatus according to claim 1 is attached to an appearance inspection apparatus for a film carrier tape for mounting electronic components. A long film having sprocket holes formed on both side edges at a predetermined pitch is passed between the delivery reel and the take-up reel, and the film is placed in the middle of the conveyance path formed between these two reels. In a film conveying method in which positioning guide means for guiding while restricting movement in the width direction is arranged,
The positioning guide means includes a pressing roller having a cushioning property, and movement of the upper surface side of the film is regulated by the pressing roller.

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