KR100572450B1 - Cleaning device for spacer tape and cleaning method for spacer tape - Google Patents

Abstract

In the spacer tape cleaning apparatus according to the present invention, a spacer tape cleaning apparatus for cleaning a used spacer tape that is continuously conveyed, the cleaning chamber disposed on an upstream side, a drying chamber disposed on a downstream side of the cleaning chamber, A cleaning nozzle installed in the cleaning chamber and spraying the cleaning liquid onto the surface of the spacer tape with respect to the spacer tape passing through the cleaning chamber, and installed in the drying chamber and cleaned in the cleaning chamber and passing through the drying chamber. It is provided with water removal means for blowing off the cleaning liquid adhering to the surface.

Description

Spacer tape cleaning device and cleaning method

1 is a schematic front view showing a cleaning apparatus suitable for carrying out the cleaning method according to an embodiment of the present invention.

Figure 2 is a perspective view showing a double tube structure employed in the air knife and hot air knife of the embodiment of Figure 1

3 is a front view of a conventional washing apparatus.

The present invention is a film carrier tape (TAB (Tape Automated Bonding) tape, T-BGA (Tape Ball Grid Array) tape, Chip Size Package) tape, ASIC (Application Specific Integrated Circuit) tape, COF (Chip) spacer film for cleaning used spacer tapes in the manufacturing process of on film) tapes, 2-metal (double-sided wiring) tapes, multilayer wiring tapes, etc. (hereinafter, simply referred to as "film carrier tapes for mounting electronic components"). A cleaning apparatus and a method for cleaning a spacer tape.

With the development of the electronics industry, the demand for printed wiring boards for mounting electronic components such as ICs (integrated circuits) and LSIs (large scale integrated circuits) is rapidly increasing. In addition, miniaturization, weight reduction, and high functionality of electronic devices are required. Recently, a method using film carrier tapes for mounting electronic components such as TAB tapes, COF tapes, T-BGA tapes, and ASIC tapes has been adopted as a method for mounting these electronic components. In particular, the importance is increasing in the electronic industry using liquid crystal display devices (LCDs), such as personal computers, which are required to have high precision, thinness, and narrow outer frame area of liquid crystal screens.

In such a film carrier tape for mounting electronic components, in order to form electronic components or wiring patterns on a resin film, for example, front coating, exposure, development, etching peeling, screen printing, plating, electrical inspection and appearance inspection, etc. Each treatment of the product is made.

In other words, since the product is made through various processes, it is wound with a reel or the like with a spacer tape made of an embossing tape for the purpose of protecting the surface of the film carrier tape for mounting electronic components during manufacture. I am returning.

In addition, in the lamination process of copper foil and an insulation film, the inspection process, such as a TAB tape, the spacer tape etc. which became a flat tape are used.

Spacer tapes such as embossed tapes or flat tapes are discarded after one use, resulting in an increase in product cost. Therefore, it is preferable to wash and use them repeatedly.

However, when the spacer tape is reused, it may be used in another process, so it must be thoroughly cleaned.

In order to clean such spacer tapes, a cleaning apparatus such as that shown in Fig. 3 is conventionally used. That is, first, the unwinding roller 4 which wound the used spacer tape 2 is set to the side which loosened. Then, the spacer tape 2 from the unwinding roller 4 is guided by the guide rollers a, b, c, d and the like while sequentially unwinding in a sheet form, and the pure water 6 is stored in the water tank 8. It is washed by immersing and passing the water. Thereafter, the winding roller 14 is wound up.

At this time, an ultrasonic generator (not shown) is installed inside the water tank 8, while the spacer tape 2 is immersed and passed through the water tank 8 by ultrasonic waves generated by the ultrasonic generator. Fine impurities and the like are removed from the surface of (2). Further, an air knife 10 through which air is blown out and a hot air knife 12 through which hot air is blown out are disposed outside the water tank 8, and compressed air blown out from the air knives 10 and 12, or The cleaning liquid adhering to the surface of the tape 2 is scattered and dried by heated air.

As a result, the spacer tape 2 'dried by the air knife 10 and the hot air knife 12 is wound around the take-up roller 14.

By the way, when the foreign matter is dropped from the surface of the spacer tape 2 using such an ultrasonic wave generator, even when the foreign matter is dropped from the surface of the spacer tape 2 by ultrasonic waves, the spacer tape 2 is a cleaning liquid. Since the inside of the water tank 8 is conveyed in the state immersed in, the foreign matter washed from the surface of the spacer tape 2 accumulates in the cleaning liquid as the cleaning proceeds.

Therefore, when the spacer tape 2 is immersed and passed through the contaminated cleaning liquid, there is a problem in that the contaminants reattach to the surface of the spacer tape 2.

Thus, when the spacer tape 2 is dried by the air knives 10 and 12 with contaminants and the like attached to the surface, the contaminants and the like may be dried while being attached to the surface of the spacer tape 2, When the spacer tape 2 is used in various manufacturing processes of the film carrier tape for mounting electronic components, this contaminant adheres to the film carrier tape for mounting electronic components, causing short circuiting of the film carrier tape for mounting electronic components. There was a concern.

In addition, when dropping contaminants by ultrasonic waves, if the conveying speed is made too large, the cleaning effect by the ultrasonic waves is lowered, so there is a limit to increasing the conveying speed. In addition, in order to lengthen the contact time with the cleaning liquid, the water tank 8 must be enlarged, which in turn causes the entire washing apparatus to be enlarged.

Moreover, in the conventional washing | cleaning apparatus, the air knife 10 and the hot air knife 12 form the slit-shaped opening extended along the axial direction in one piping outer peripheral surface, and air or heating air is removed from this opening in the tape width direction. It is a structure that ejects. Therefore, the amount of air blown out from this opening increases as the compressed air source approaches, and the blow-off amount decreases as it moves away from the compressed air source, so that the dry state tends to be uneven along the width direction of the spacer tape 2. There was a problem.

The present invention makes it possible to compact the size of the entire apparatus and to increase the processing speed in view of such a phenomenon, and furthermore to make the dry state of the spacer tape more uniform, and also to have good cleaning efficiency and excellent cleaning efficiency. An object of the present invention is to provide a cleaning device for tapes and a cleaning method for spacer tapes.

In order to achieve the above object, the cleaning apparatus for a spacer tape according to the present invention is a cleaning apparatus for a spacer tape for cleaning a used spacer tape which is continuously conveyed, the cleaning chamber being disposed upstream, A drying chamber disposed downstream, a cleaning nozzle installed in the cleaning chamber, for spraying a cleaning liquid onto the surface of the spacer tape with respect to the spacer tape passing through the cleaning chamber, and installed in the drying chamber, and cleaned in the cleaning chamber. And water removal means for blowing off the cleaning liquid adhering to the surface of the spacer tape passing through the interior of the drying chamber.

Moreover, the spacer tape cleaning method of this invention is a spacer tape cleaning method for cleaning the used spacer tape conveyed continuously, The inside of a cleaning chamber is provided through the cleaning nozzle provided in the cleaning chamber arrange | positioned upstream. The cleaning liquid is sprayed on the surface of the spacer with respect to the spacer tape passing through, and then the cleaning liquid is cleaned in the cleaning chamber and adhered to the surface of the spacer tape passing through the drying chamber in the drying chamber disposed downstream of the cleaning chamber. Blown by the water removal means installed in the drying chamber to dry.

In this configuration, the cleaning liquid is sprayed on the surface of the cleaning tape toward the spacer tape passing through the inside of the cleaning chamber through the cleaning nozzles provided inside the cleaning chamber arranged on the upstream side, so that the spacer is not immersed in the cleaning liquid as in the prior art. Therefore, foreign matter does not adhere to the surface of the spacer tape again, and the cleaning property is very excellent.

Therefore, the cleaning liquid adhering to the surface of the spacer tape is a cleaning liquid in which such foreign matters and the like do not remain, and the cleaning liquid adhering to the surface of the spacer tape is blown off and dried by water removal means provided in the drying chamber. The surface of the is dried in a completely cleaned state.

In addition, when the spacer tape thus cleaned and dried is used in various manufacturing processes of the film carrier tape for mounting electronic components, foreign substances and the like do not adhere to the film carrier tape for mounting electronic components, as well as the film carrier tape for mounting electronic components. It does not cause short circuits.

In addition, as in the case of performing conventional ultrasonic cleaning, the apparatus is very compact because it is not necessary to install a large water tank for storing pure water immersed in the spacer tape, and a drying device such as an air knife installed separately from the water tank. .

The cleaning apparatus for the spacer tape of the present invention is disposed on both sides of the spacer so that the cleaning nozzle sprays the cleaning liquid toward both surfaces of the spacer tape against the spacer tape through which the cleaning nozzle passes.

In this way, since the cleaning nozzles are located on both sides of the spacer and spray the cleaning liquid toward both surfaces of the spacer tape, not only can the surfaces of the spacer tape be cleaned at the same time, but also the cleaning properties are good and the cleaning efficiency is excellent.

Further, the cleaning apparatus for the spacer tape of the present invention is configured such that the cleaning nozzle is swingable in the conveying direction of the spacer tape, whereby the spray angle of the cleaning liquid on the spacer tape can be changed.

With this configuration, since the spray angle of the cleaning liquid with respect to the spacer tape can be changed in the conveying direction of the spacer tape, it is possible to blow the cleaning liquid to every corner along the conveying direction of the tape surface, and to remove foreign substances uniformly. It is possible to reduce the amount of cleaning solution used.

Further, the cleaning apparatus for the spacer tape of the present invention is configured such that the cleaning nozzle is swingable along the width direction of the spacer tape, whereby the spray angle of the cleaning liquid on the spacer tape can be changed.

Therefore, since the spray angle of the cleaning liquid with respect to the spacer tape can be changed in the width direction of the spacer tape, it is possible to uniformly remove foreign substances to every corner along the width direction of the tape surface, and to reduce the amount of the cleaning liquid used. have.

In the cleaning apparatus for the spacer tape of the present invention, water removal means for blowing off the cleaning liquid adhering to the surface of the spacer tape is disposed downstream of the cleaning chamber connected to the drying chamber.

In this way, the water removing means is disposed downstream of the washing chamber connected to the drying chamber, immediately before the drying chamber, and thus the cleaning liquid adhering to the spacer tape surface is blown off, so that the cleaning liquid in the cleaning chamber is almost recovered and reused. Can be.

In addition, since the spacer tape can be supplied to the drying chamber after blowing off the cleaning liquid, the cleaning liquid hardly remains on the surface of the spacer tape supplied into the drying chamber. Therefore, the drying efficiency in the next drying chamber can be improved.

Moreover, the washing | cleaning apparatus of the spacer tape of this invention is equipped with the washing | cleaning chamber by which the said washing chamber was divided into several.

In this configuration, since the washing is performed in the washing chamber located on the upstream side, the washing is performed again in the washing chamber located on the downstream side, so that the washing performance is further improved and the washing efficiency is also improved.

Furthermore, since these several washing | cleaning chambers are divided | segmented and divided | separated alternately, since the washing | cleaning liquid sprayed used for the upstream washing | cleaning does not scatter and enters a downstream washing | cleaning chamber, washing | cleaning property in a downstream side does not fall.

Moreover, the washing | cleaning apparatus of the spacer tape of this invention is comprised so that it may reuse by collect | recovering and circulating the washing | cleaning liquid sprayed from the washing | cleaning nozzle inside the said washing chamber.

Therefore, the cleaning liquid can be used effectively.

Further, the spacer tape cleaning apparatus of the present invention is reused by collecting the cleaning liquid ejected from the cleaning nozzle inside the downstream cleaning chamber among the cleaning chambers in which the cleaning chamber is divided into multiple parts and circulating the cleaning nozzle in the upstream cleaning chamber. It is configured to.

Therefore, the washing liquid sprayed from the washing nozzle into the downstream washing chamber by preliminary cleaning in the upstream washing chamber, and used for washing the spacer tape can be used as the washing liquid sprayed from the washing nozzle in the upstream washing chamber. The cleaning liquid can be used efficiently.

Moreover, the cleaning apparatus of the spacer tape of this invention is comprised so that the impurity removal apparatus may be provided in the passage | route which circulates the said cleaning liquid, and it circulates through this impurity removal apparatus and circulates the cleaning liquid from which the impurity was removed.

By disposing the impurity removal device in the passage through which the cleaning liquid is circulated, and passing through the impurity removing device, the cleaning liquid from which impurities are removed can be repeatedly circulated and used to always clean the cleaning liquid. This is further improved.

Moreover, in the cleaning apparatus of the spacer tape of this invention, the said impurity removal apparatus consists of a magnet.

With such a configuration, it is possible to remove magnetic substances such as iron powder and magnetic dust generated from, for example, an apparatus or the like contained in the cleaning liquid after being used for cleaning and adhered to the surface of the spacer tape to be removed.

Moreover, the washing | cleaning apparatus of the spacer tape of this invention is comprised so that a spacer tape may be conveyed alternately up and down in the said washing chamber.

Therefore, the space of the cleaning chamber required for conveyance and cleaning of the spacer tape can be reduced, and the apparatus can be compact.

Moreover, the washing | cleaning apparatus of the spacer tape of this invention is comprised so that a spacer tape may be conveyed alternately in an up-down direction inside the said drying chamber.

By configuring in this way, not only can a spacer tape be stored enough for drying inside a drying chamber, but also the space of the drying chamber required for conveyance and drying of a spacer tape can be reduced, and an apparatus can be compact.

Moreover, the washing | cleaning apparatus of the spacer tape of this invention is comprised so that the said drying chamber may be maintained at a constant drying temperature.

Therefore, it is blown and dried by the water removal means installed in the drying chamber, and the drying efficiency using the drying synergistic effect can be improved by the drying temperature inside the drying chamber by heating or the like.

Moreover, the washing | cleaning apparatus of the spacer tape of this invention is comprised so that the drying temperature in the said drying chamber may be maintained in the range of 60-90 degreeC.

If the drying temperature inside the drying chamber is maintained in the above temperature range, the spacer tape can be dried quickly without degrading the quality of the spacer tape.

In the cleaning apparatus of the spacer tape of the present invention, the water removing means is constituted by an air knife in which compressed air is blown out, or a hot air knife in which heated air is blown out.

Therefore, since the cleaning liquid on the surface of the spacer tape is scattered and dried by the action of compressed air blown out from the air knife and heated air blown out from the hot air knife, the surface of the spacer tape can be uniformly dried along the width direction.

The cleaning apparatus for the spacer tape of the present invention is configured such that the air knife or the hot air knife is ejected from a slit-like opening formed along the axial direction of a pipe for feeding air or heating air.

Therefore, the blowing air can be blown hard from the slit-shaped opening toward the whole width direction of the spacer tape, and it is possible to dry uniformly toward the width direction of the spacer tape, and the drying efficiency is good.

In the cleaning apparatus for the spacer tape of the present invention, the air knife or the hot air knife pipe is composed of a double pipe, the inner pipe has a slit-like inner opening formed along the axial direction, and the outer pipe is the shaft. Formed along the direction and having a slit-like outer opening disposed in a direction approximately 180 ° different from the inner opening of the inner pipe, the air or heated air pushed into the inner pipe enters the gap of the double pipe from the inner opening of the inner pipe; It is comprised so that it may be sprayed on a spacer tape through the outer opening of an outer piping.

With such a configuration, the air or heated air pressurized through the inner pipe enters the gap between the double pipes from the inner opening of the inner pipe and enters the gap to remain. Since the air remaining in this gap is injected through the slit-like outer opening of the outer pipe disposed in a direction different from the inner opening of the inner pipe approximately 180 °, the amount of air uniformly uniform from the entire slit-like outer opening of the outer pipe and Pressure or air is blown towards the spacer tape.

Therefore, even if the air or heating air is ejected to the spacer tape at a substantially uniform amount and pressure even near or far from the source of the air or heating air, the occurrence of unevenness in surface drying of the spacer taper is reduced.

Moreover, the washing | cleaning apparatus of the spacer tape of this invention is comprised so that a magnet may be arrange | positioned at the conveyance path of the spacer tape near the exit of the said drying chamber downstream, and this magnet adsorb | sucks the magnetic body adhering to the surface of a spacer tape. .

Thus, since a magnet is arrange | positioned at the conveyance path of the spacer tape near the exit of a dry chamber downstream side, and this magnet adsorb | sucks the magnetic substance adhering to the surface of a spacer tape, even after drying to the spacer tape surface after drying in a drying chamber. Magnetic objects such as remaining and adhering iron and magnetic dust can be removed from the surface of the spacer tape, thereby obtaining a cleaner spacer tape.

Moreover, in the cleaning apparatus of the spacer tape of this invention, the said cleaning nozzle is provided in the upstream area | region and downstream area | region of the spacer tape conveyance path inside a cleaning chamber, respectively.

Therefore, since the cleaning nozzle provided in the upstream region and the cleaning nozzle provided in the downstream region is cleaned several times, the cleaning property and the cleaning efficiency are further improved.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment (example) of this invention is described in detail with reference to drawings.

1 is a schematic diagram schematically showing an embodiment of a cleaning apparatus for a spacer tape of the present invention.

Referring to the figure, the cleaning device 20 is provided with a box-type cleaning device main body 22. In this washing | cleaning apparatus main body 22, the washing | cleaning and drying part 22a is arrange | positioned in the substantially center position.

Although not shown, this washing / drying part 22a is provided with a tight sealing structure, and is provided with the door which opens and closes to the front side of the ground of FIG. As a result, mounting, maintenance, etc. of a spacer tape are possible inside the washing | cleaning and drying part 22a.

In addition, the inside of this washing | cleaning apparatus main body 22 unwinds the unwinding roller 4 which wound the used spacer tape 2 in the various process of the film carrier tape for electronic component mounting as shown in FIG. 3 (FIG. 1). It is installed in two stages up and down.

Moreover, in order to wind up the spacer tape 2 'after washing | cleaning, the winding roller 14 is provided in the upper and lower two steps on the winding side (right side of FIG. 1).

In addition, although not shown, in fact, the take-up roller 4 and the take-up roller 14 are further installed one by one at the same height. That is, they are respectively arranged side by side on the back side of the ground. Therefore, in the washing | cleaning apparatus 20 of FIG. 1, the spacer tape 2 unwound from four unwinding rollers 4 is wound up by the four unwinding rollers 14. As shown in FIG.

The sheet-shaped spacer tape 2 unwound from each unwinding roller 4 is conveyed to the washing | cleaning and drying part 22a via the guide roller e1.

1, the washing | cleaning and drying part 22a is equipped with the washing | cleaning chamber A arrange | positioned upstream and the drying chamber B arrange | positioned downstream of this washing | cleaning chamber A as shown in FIG.

Thus, the cleaning chamber A includes the first cleaning chamber 24 disposed upstream and the second cleaning chamber 26 disposed downstream of the first cleaning chamber 24.

Although not shown here, the connection passage 30 between the cleaning chamber A and the drying chamber B is sealed.

Moreover, although not shown, the spacer tape 2 conveyed to the washing | cleaning and drying part 22a through the guide roller e1 as mentioned above is the 1st washing | cleaning through the slit-shaped opening formed in the upper part of the 1st washing chamber 24. Guided into the seal 24.

The spacer tape 2 guided to the inside of the first cleaning chamber 24 has a guide disposed below the inside of the first cleaning chamber 24 and below the first cleaning chamber 24 from the guide roller e1. It is conveyed to the roller e2.

And the spacer tape 2 conveyed to the guide roller e2 is horizontally conveyed from the guide roller e2 to the guide roller e3 arrange | positioned under the 2nd washing chamber 26, and is 2nd washing chamber ( 26) Guided inside.

Here, although not shown, the spacer tape 2 conveyed in the horizontal direction is formed through the slit-like opening formed in the shielding plate 25 disposed between the first cleaning chamber 24 and the second cleaning chamber 26. The cleaning chamber 24 is guided to the second cleaning chamber 26.

And the spacer tape 2 guided in the 2nd washing chamber 26 is guided and conveyed upward toward the guide roller e4 arrange | positioned above the 2nd washing chamber 26 from the guide roller e3. .

In addition, the spacer tape 2 guided upward in the second cleaning chamber 26 toward the guide roller e4 is guided in a horizontal direction toward the guide roller e5 disposed above the drying chamber B. 2 It is conveyed to the drying chamber B via the connection path 30 arrange | positioned between the washing | cleaning chamber 26 and the drying chamber B. FIG.

In the drying chamber B, after guided downward from the guide roller e5 arrange | positioned above the drying chamber B to the guide roller e6 located under the drying chamber B, it dries from the guide roller e6. It is guided and conveyed upwards to the guide roller e7 arrange | positioned at the outer upper side of city B.

Although not shown, the spacer tape 2 is conveyed to the exterior of the drying chamber B through the slit-shaped opening provided in the upper side of the drying chamber B here.

And the spacer tape 2 is wound up by the winding roller 14 through the guide roller e7.

In this way, the spacer tape 2 moves in the vertical direction while passing through the plurality of guide rollers e1, e2, e3, e4, e5, e6, and e7 alternately arranged in the cleaning chamber A and the drying chamber B. Since it is conveyed alternately, the space of the washing | cleaning chamber A and drying chamber B which are necessary for conveyance, washing | cleaning, and drying of a spacer tape can be made small, and an apparatus can be made compact.

In the first cleaning chamber 24 of the cleaning chamber A, a guide tape e1 guides the inside of the first cleaning chamber 24 downward from the guide roller e1 to the guide roller e2. Two washing | cleaning apparatus which consists of washing | cleaning nozzles 32a and 34a arrange | positioned at mutually opposing positions are provided. One of them is installed for cleaning the top tape 2 and the other for the bottom tape 2.

Then, one side of the tape 2 is cleaned by the cleaning nozzle 32a, and the other side of the tape 2 is cleaned by the cleaning nozzle 34a. Therefore, in the 1st washing chamber 24 of this washing chamber A, both sides of the tape 2 are wash | cleaned without missing. In addition, these cleaning nozzles 32a and 34a are provided at predetermined intervals along the axial direction of the pipe for feeding the cleaning liquid from a cleaning liquid source (not shown).

In addition, this piping is configured to be able to swing in the conveying direction of the spacer tape 2 or the axial direction of the piping, i.e., the width direction of the spacer tape 2, or both directions by a drive mechanism not shown. do.

Therefore, since the cleaning liquid injection angle of the cleaning nozzle 32a 34a with respect to the spacer tape 2 can be changed in the conveyance direction and the width direction of the spacer tape 2, the conveyance direction and the width direction of the spacer tape 2 are changed. The cleaning solution can be uniformly blown to every corner of both sides of the spacer tape 2 before and after, and the foreign matter can be evenly removed. It is also possible to reduce the amount of cleaning solution used.

The opening 21 for the outside and the exhaust is formed in the side portion near the upper side inside the first cleaning chamber 24. The partition plate 23 is disposed between the cleaning nozzles 32a and 34a in order to prevent the cleaning liquid injected into the opening 21 from being exhausted to the outside.

Although not shown, the partition plate 23 is also provided with a slit-like opening, and the spacer tape 2 is guided downward through the slit-like opening.

In addition, a shielding plate 25 is disposed between the first cleaning chamber 24 and the second cleaning chamber 26.

The shielding plate 25 is formed in a water removal area including air knives 44 and 44 constituting water removal means for ejecting compressed air disposed above the second cleaning room 26. This is to prevent the cleaning liquid injected from the cleaning nozzles 32a and 34a from scattering and invading in 24). For this reason, the washing | cleaning property inside the 2nd washing chamber 26 of a downstream side does not fall.

In addition, although not shown in this shielding plate 25, only the part through which the spacer tape 2 passes is formed with a slit-shaped opening, and the 2nd cleaning chamber 26 is opened from the 1st cleaning chamber 24 through this slit-shaped opening. ), The spacer tape 2 is guided.

In addition, the lower end of the shielding plate 25 is locked to the inside of the reservoir 38, so that the first washing chamber 24 and the second washing chamber 26 are completely separated.

On the other hand, inside the second cleaning chamber 26, the inside of the second cleaning chamber 26 is guided and conveyed upward from the guide roller e3 to the guide roller e4 as in the case of the first cleaning chamber 24. A washing apparatus including washing nozzles 32b and 34b is provided at positions facing each other with the spacer tape 2 interposed therebetween.

Also in this second cleaning chamber 26, similarly to the case of the first cleaning chamber 24, the cleaning liquid is injected through the cleaning nozzle 32b 34b, and as a result, both front and back sides of the tape 2 are cleaned. .

The cleaning nozzles 32b 34b are also provided at predetermined intervals along the axial direction of the pipe for feeding the cleaning liquid from the cleaning liquid source (not shown), similarly to the cleaning nozzles 32a and 34a of the first cleaning chamber 24. It is comprised so that a swinging direction is possible in the conveyance direction of the spacer tape 2 about the axis of piping, or the axial direction of piping, ie, the width direction of the spacer tape 2, or both directions.

In addition, in this case, although it does not specifically limit as washing | cleaning liquid, For example, pure water, neutral washing liquid containing surfactant, etc. can be used.

First, the cleaning liquid is supplied from the cleaning liquid source such as a cleaning liquid tank (not shown) to the cleaning nozzles 32b and 34b of the second cleaning chamber 26 and used for cleaning in the second cleaning chamber 26.

Thereafter, the washing liquid used for washing in the second washing chamber 26 naturally falls into the reservoir 38 provided at the bottom of the washing chamber A, and is added to the washing liquid stored in the reservoir 38 in advance. Are accepted.

The cleaning liquid stored in the reservoir 38 is supplied to the cleaning nozzles 32a and 34a of the first cleaning chamber 24 through the pump P and the filter F.

By the above configuration, preliminary cleaning is performed in the first upstream cleaning chamber 24 on the upstream side, and is ejected from the cleaning nozzles 32b and 34b inside the second downstream cleaning chamber 26 on the downstream side to form a spacer tape ( The washing liquid after being used for washing in 2) can be used as the washing liquid sprayed from the washing nozzles 32a and 34a of the first washing chamber 24 on the upstream side, and the washing liquid can be effectively used.

Moreover, in the washing | cleaning chamber A, it is set so that the liquid level of the water storage tank 38 may be controlled so that the liquid level of the water storage tank 38 may be lower than the guide rollers e2 and e3 which are located in the lowest position. That is, the cleaning liquid exceeding the predetermined liquid level of the reservoir 38 is drained to the outside through the drain pipe 42, so that a constant liquid level is always maintained.

Therefore, after the spacer tape 2 cleaned by the cleaning nozzles 32b and 34b of the first cleaning chamber 24 is cleaned, the space between the guide rollers e2 and e3 is conveyed horizontally so that the second cleaning chamber ( 26) It is prevented from being immersed in the cleaning liquid stored in the reservoir 38 while being guided inside.

As a result, the spacer tape cleaned by the cleaning nozzles 32a and 34a of the first cleaning chamber 24 is prevented from being contaminated by the cleaning liquid stored in the contaminated reservoir 38.

Air knives 44, 44 for ejecting compressed air are provided in the upper part of the downstream side connected to the drying chamber B downstream of the second cleaning chamber 26, that is, in front of the connecting passage 30 leading to the drying chamber B. .

That is, the inside of the 2nd washing | cleaning chamber 26 has the spacer tape 2 guided and conveyed upwards from the guide roller e3 toward the guide roller e4. The air knives 44 and 44 are installed in mutually opposing positions.

Similarly to the cleaning nozzles 32b and 34b, this air knife 44 is provided on both sides with respect to the conveyance path of the spacer tape 2 with one spacer tape 2 interposed therebetween. Water adhering to both sides of the spacer tape 2 can be scattered by compressed air and dropped.

In addition, the air knife 44 is disposed at a predetermined height of the second cleaning chamber 26 so as to be spaced apart from the cleaning nozzles 32b and 34b so as not to be affected by the cleaning liquid sprayed from the cleaning nozzles 32b and 34b. have.

Since the spacer tape 2 can be supplied to the drying chamber B after the cleaning liquid is scattered by the air knife 44 as described above, almost no cleaning liquid exists on the surface of the spacer tape 2 supplied inside the drying chamber B. Therefore, it is possible to improve the drying efficiency in the following drying chamber (B).

In the drying chamber B, the spacer tape 2 guided and conveyed downward from the guide roller e5 toward the guide roller e6 is interposed between the guide rollers e5 and positioned at opposite positions, that is, of the spacer tape 2. The hot air knives 46a and 46a are arrange | positioned at both sides with respect to a conveyance path.

Similarly, in the drying chamber B, the spacer tapes 2 guided and conveyed downward from the guide rollers e6 toward the guide rollers e7 are interposed therebetween, ie, the positions of the spacer tapes 2 are opposed to each other. The hot air knives 46b and 46b are arrange | positioned at both sides with respect to a conveyance path.

Although the heights of these hot air knives 46a and 46a and the hot air knives 46b and 46b may be the same, they can be arrange | positioned so that they may mutually differ so that they may not interfere with each other.

In this case, it is preferable that these hot air knives 46b and 46b blow off heated air, for example, heated air heated at about 90 degreeC.

In addition, although not shown in the inside of this drying chamber B, room temperature is maintained at high temperature with a heater, such as an infrared heater, a far-infrared heater, a sheath heater, etc., for example, the sensor which is not shown in figure, Temperature control is made to be a certain temperature through the control device.

As for the temperature of this drying chamber B, about 60-90 degreeC is preferable. More preferably, it is 65 degreeC or more and 90 degreeC. If the drying temperature in the drying chamber is set within such a temperature range, drying of the spacer tape can be performed quickly without degrading the quality of the spacer tape.

Further, the structures of the air knife 44 and the hot air knife 46 will be described in detail with reference to FIG. 2.

The structure of the air knife 44 and the hot air knife 46 is provided with the 1st piping 49 arrange | positioned inside, and the 2nd piping 50 arrange | positioned at the outer side, The 1st piping 49 and the 2nd In each of the pipes 50, a slit-like inner opening 54 and an outer opening 55 are formed along the axial direction, respectively. And these openings 54 and 55 are not arrange | positioned in the same direction from an inner side and an outer side, but are provided in 180 degree different directions.

Therefore, as shown in FIG. 2, the air or heating air pressurized in the direction of arrow D from the inside of the inner first pipe 49 is first passed through the inside of the first pipe 49 afterwards. It passes through the slit-like opening 54 of the 1st piping 49 of the inside, and stays in the clearance 56 formed between the clearance gap 56 of a double pipe, ie, the outer 2nd piping 50.

The air retained in this gap is disposed in a direction approximately 180 ° different from the slit-like opening 54 of the inner first pipe 49, that is, the slit-like outer side of the outer second pipe 50 opened to the opposite side. It blows outward through the opening 55.

Therefore, air or heating air is injected toward the spacer tape 2 at a substantially uniform air flow rate and pressure from the entire slit-like outer opening of the outer pipe. As a result, the air blown out from the outer opening 55 of the second pipe 50 has the same amount of air flow at any position, and the less unevenness is reduced as it is farther from the source of compressed air.

Therefore, irrespective of the side near or far from the source of air or heated air, air or heated air can be blown toward the spacer tape 2 at a substantially uniform amount and pressure, so that the surface of the spacer tape 2 is uneven. Less space is required.

Therefore, with such an air knife 44 or hot air knife 46 structure, the water droplet of the washing | cleaning liquid can be blown off about the same grade to the sheet-like tape 2. The amount of air at this time is preferably about 15 to 50 m / s.

In addition, in the drying chamber B, since a temperature sensor or the like is arranged for temperature control, the tape 2 'after washing can be dried as a whole by the temperature environment of the independent drying chamber B. Therefore, the winding roller 14 is wound with the tape 92 'dried by the natural drying and the air knife 44 and the hot air knife 46 substantially uniformly.

As mentioned above, although one Example of this invention was described, this invention is not limited by the said Example.

For example, in the above embodiment, the tape 2 'after being cleaned and dried is wound on the winding roller 14 as it is. For example, as an impurity removal device between the drying chamber B and the winding roller 14, The magnet is disposed in the conveyance path of the spacer tape near the downstream exit of the drying chamber B to provide a passage through the magnet, and the tape 2 'is guided between the magnets, and then wound up by the winding roller 14. You may.

If it is mentioned above, magnetic substance, such as iron powder and magnetic dust which remain | survives and adheres even after drying, can be adsorb | sucked on the surface of the spacer tape 2 'after drying in the drying chamber B, and it can remove from the surface of a spacer tape. Therefore, a cleaner spacer tape can be obtained.

In addition, a magnet may be disposed in an upstream side of a pump used to reuse the cleaning liquid as an impurity removal device in a passage through which the cleaning liquid is circulated in the cleaning chamber A. In this manner, when the cleaning solution is circulated and used to pass through the magnet, magnetic dust and the like mixed in the cleaning solution can be removed.

Therefore, it can always wash with a clean washing liquid, and further, washing | cleaning property and a washing | cleaning effect are improved further.

In addition, in the said Example, two washing | cleaning of the 1st washing chamber 24 which arrange | positioned the washing chamber A in the upstream, and the 2nd washing chamber 26 arrange | positioned downstream of the 1st washing chamber 24 are carried out. Although it comprised with the yarn, it can also comprise this washing | cleaning chamber three or more. In this case, if the cleaning liquid ejected from the cleaning nozzle inside the downstream cleaning chamber among the plurality of partitions of the plurality of cleaning chambers is recovered and recycled to the cleaning nozzle of the upstream cleaning chamber, the use efficiency of the cleaning liquid is improved.

According to the present embodiment as described above, in each step of the film carrier tape for mounting electronic components, even the spacer tape 2 used once can be wound on the winding roller 14 in a continuous cleaning and drying state.

In addition, since the cleaning solution is directly blown into the cleaning chamber, water is actively removed using a water removing means including an air knife or a hot air knife in a drying chamber maintained at a high temperature, and thus the conveying speed is greatly increased. Can be increased with Therefore, the processing capacity can be improved.

In addition, according to the experiment, it was possible to process up to three times faster. Therefore, as a result, it can contribute to cost reduction of a printed wiring board.

In addition, in the above embodiment, the embodiment applied to the spacer tape used for the film carrier tape for mounting the electronic component has been described, but it can be applied to the spacer tape used for manufacturing other products.

As described above, according to the present invention, since the cleaning liquid is sprayed onto the surface of the spacer tape passing through the inside of the cleaning chamber through the cleaning nozzle disposed inside the cleaning chamber disposed upstream, cleaning is performed by conventional ultrasonic cleaning. Not only do the spacers not be immersed in the cleaning liquid as in the case of the present invention, but also the contaminants do not adhere to the surface of the spacer tape again, and thus the cleaning performance is very excellent.

Therefore, the cleaning liquid adhering to the surface of the spacer tape is a cleaning liquid in which such contaminants do not remain, and the cleaning liquid adhering to the surface of the spacer tape is blown off and dried by using a water removing means provided in the drying chamber, so that the spacer after drying The tape surface is dried in a clean state.

When the spacer tape thus cleaned and dried is used in various manufacturing processes of the film carrier tape for mounting electronic components, contaminants, etc. do not adhere to the film carrier tape for mounting electronic components, such as a short circuit of the film carrier tape for mounting electronic components. It does not cause it.

In addition, as in the case of conventional ultrasonic cleaning, the apparatus is very compact because it is not necessary to provide a large tank for storing pure water immersing the spacer tape and a drying apparatus such as an air knife provided separately from the tank.

Moreover, according to the washing | cleaning apparatus of this invention, the washing | cleaning efficiency and processing capacity of a spacer tape can be speeded up compared with the case where ultrasonic cleaning is performed. Moreover, the size of the whole washing | cleaning apparatus can be made compact. Furthermore, since the inside of a drying chamber is maintained at high temperature, drying efficiency is favorable. In addition, the drying efficiency is improved because water on the surface is drawn out by the water removing means including the air knife or hot air knife and then drawn out into the drying chamber.

In addition, since the cleaning nozzle is provided in the upstream region or the downstream region of the spacer tape conveyance path, the cleaning nozzle can be cleaned by the first cleaning nozzle and the subsequent cleaning nozzle can be used as the final cleaning.

In addition, since the cleaning nozzle is connected to the pipe which can swing, the ejection angle can be adjusted so that the cleaning of the tape is not biased locally.

Furthermore, since the blowing air from the air knife or the hot air knife is blown out from the outer slit-like opening of the double pipe, the blowing amount can be averaged. Therefore, unevenness is unlikely to occur during drying. Moreover, by providing a magnet in the conveyance path of the spacer tape comprised in the outer side of a drying chamber, or the suction port side of the pump which circulates a washing | cleaning liquid, even if there exists magnetic dust in a tape surface or a washing | cleaning liquid, this can be removed.

In addition, according to the cleaning method according to the present invention, it is possible to miniaturize the device and to improve the processing speed. In addition, cleaning nonuniformity or dry nonuniformity may be reduced, thereby contributing to cost reduction.

Claims (20)

In the cleaning apparatus of the spacer tape for washing the used spacer tape conveyed continuously, A washing chamber disposed upstream; A drying chamber disposed downstream of the cleaning chamber; A cleaning nozzle installed in the cleaning chamber and spraying a cleaning liquid onto a surface of the spacer tape with respect to the spacer tape passing through the cleaning chamber; And And water removal means for blowing out a cleaning liquid attached to the surface of the spacer tape which is cleaned in the cleaning chamber and passes through the interior of the drying chamber. The cleaning chamber includes a plurality of partitioned cleaning chambers, And cleaning the liquid ejected from the cleaning nozzle into the cleaning chamber downstream of the cleaning chamber and circulating the cleaning liquid to the cleaning nozzle inside the upstream cleaning chamber. The method of claim 1, And the cleaning nozzle is disposed on both sides of the spacer so as to spray the cleaning liquid toward both surfaces of the spacer tape with respect to the spacer tape passing through the cleaning chamber. The method according to claim 1 or 2, And the cleaning nozzle is configured to be swingable along the conveying direction of the spacer tape, thereby changing the spraying angle of the cleaning liquid onto the spacer tape. The method according to claim 1 or 2, And the cleaning nozzle is configured to be swingable along the width direction of the spacer tape, thereby changing the spraying angle of the cleaning liquid onto the spacer tape. The method of claim 1, And a water removing means for blowing off a cleaning liquid adhering to the surface of the spacer tape on a downstream side of the cleaning chamber connected to the drying chamber. delete delete delete The method according to claim 1 or 2, An impurity removal device is provided in a passage through which the cleaning liquid is circulated, and the spacer tape cleaning device is configured to circulate the cleaning liquid from which impurities are removed by passing through the impurity removing device. The method of claim 9, The impurity removing device is a spacer tape cleaning device, characterized in that consisting of a magnet. The method of claim 1, Spacer tape cleaning device, characterized in that the spacer tape is conveyed alternately in the vertical direction in the cleaning chamber. The method of claim 1, Spacer tape cleaning device, characterized in that configured to be conveyed alternately in the vertical chamber in the drying chamber. The method of claim 1, The drying chamber is a spacer tape cleaning apparatus, characterized in that configured to be maintained at a constant drying temperature. The method of claim 13, Drying temperature in the drying chamber is a spacer tape cleaning apparatus, characterized in that configured to be maintained in the range of 60 ~ 90 ℃. The method according to claim 1 or 5, The water removing means is a spacer tape cleaning device, characterized in that composed of an air knife for blowing compressed air, or a hot air knife for blowing the heated air. The method of claim 15, And the air knife or the hot air knife is configured to blow out from a slit-shaped opening formed along an axial direction of a pipe for feeding air or heated air. The method of claim 16, The pipe of the air knife or the hot air knife is composed of a double pipe, The inner pipe has a slit-like inner opening formed along the axial direction, The outer pipe is formed along the axial direction and has a slit-like outer opening arranged in a direction approximately 180 ° different from the inner opening of the inner pipe, Air or heated air pressurized into the inner pipe enters the gap of the double pipe from the inner opening of the inner pipe, and is sprayed to the spacer tape through the outer opening of the outer pipe. The method of claim 1, And a magnet disposed on a conveyance path of the spacer tape near the outlet of the downstream side of the drying chamber, and the magnet is attached to the surface of the spacer tape by the magnet to adsorb the magnetic body. The method according to claim 1 or 2, And each of the cleaning nozzles is provided in an upstream region and a downstream region of the spacer tape conveying path in the cleaning chamber. A spacer tape cleaning method for cleaning a used spacer tape that is continuously conveyed, After cleaning by spraying the cleaning liquid onto the spacer surface with respect to the spacer tape passing through the cleaning chamber through the cleaning nozzle disposed inside the cleaning chamber disposed upstream, In the drying chamber disposed downstream of the cleaning chamber, the cleaning liquid attached to the surface of the spacer tape which is cleaned in the cleaning chamber and passes through the interior of the drying chamber is blown off by water removal means provided in the drying chamber, and dried. , The washing chamber is provided with a plurality of partitioned washing chambers, and the washing liquid ejected from the washing nozzle into the washing chamber downstream of the washing chamber during the washing process is recovered and circulated into the upstream washing chamber for reuse. Spacer tape cleaning method.

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