JPH0336146A - Linear sheet supplying and winding device - Google Patents

Abstract

PURPOSE:To reduce danger resulting in damages and pattern falling by putting winding dia. detecting means required for constant tension of a linear sheet in contact with the linear sheet via interleavers. CONSTITUTION:Interleavers 5, 15 are wound together with a linear sheet 3 on a supplying reel 1 and a winding reel 11 to prevent damages due to contact of one linear sheet 3 with the other. Winding dia. detecting means (rollers) 111, 117 are slightly pushed against the most outside interleavers 5, 15 for the supplying reel 1 and the winding reel 11, respectively, to detect the winding dia. of the supplying reel 1 and the winding reel 11. It is thus possible to avoid respective winding dia. detecting means 111, 117 from direct contact with the linear sheet 3. As tension applied to the linear sheet 3 is proportional to the product of driving torque and winding dia., a torque control section adjusts the driving torque of the supplying reel 1 and the winding reel 11 in accordance with winding dia. detected by the respective winding dia. detecting means 111, 117 to maintain the tension of the linear sheet 3 constant.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a supply and take-up device for a strip, which maintains the tension of the strip at a constant level by adjusting the driving torque of a supply reel and a take-up reel. It is something.

[Conventional technology]

TAB (Tape Automated
B.

The nding method is known as one of the IC chip mounting techniques, and is widely used because of its high processing accuracy and ability to perform bulk bonding. The TAB tape (also called "film carrier tape") used in this TAB method is made of a film made of, for example, a polyamide wire, on which copper leads are formed for bonding an IC. Each frame is continuously wound around a reel like the frames of a movie film.

In the pre-IC bonding process, this TAB tape is inspected by a TAB tape inspection device to see if there is any damage to the copper leads or missing patterns. Typical TAB tape inspection equipment performs automatic or visual inspection after unwinding the TAB tape from the supply reel and before winding it onto the take-up reel (for example, TAB Film Carrier Lead Inspection System, MV-5100, (manufactured by Shi Co., Ltd.). At this time, in order to reduce damage caused by uneven winding, the driving torque of the supply reel and take-up reel is
Tension is applied to the AB tape. However, if the torque that drives the supply reel and take-up reel remains constant from the start to the end of the inspection, the tension applied to the T A B tape will change as the winding diameters of the supply reel and take-up reel change. This will cause the TAI3 tape to stretch or shrink. Therefore, the TAB tape inspection device needs to detect this change in the winding diameter and adjust the driving torque accordingly.

The winding diameter detection means of the conventional TAB tape inspection device is called the Tasotyrol method, and as shown in FIG.
I 4-5 is attached to the outermost TAB tape 3 of the supply reel 1 and take-up reel 11, and the rollers 141, 1.
The winding diameter of the TAB tape on the supply reel 1 and the take-up reel 11 was detected from the rotation angles of the levers 143 and 147 branching from the TAB tape 15.

[Problem to be solved by the invention]

However, in the conventional TAR3 tape inspection apparatus, since the roller is attached directly to the TAB tape (strip-shaped body), there is a problem that the TAB tape is damaged or the pattern is missing due to contact with the roller.

The present invention has been made based on the above-mentioned circumstances, and provides a supply and winding method for supplying and winding a strip that can maintain a constant tension of the strip without causing damage to the strip or tops and bottoms such as missing patterns. The purpose is to provide a device.

[Means to solve the problem]

A first invention for achieving the above object includes: a supply reel on which a strip is wound together with a first interleaver; a take-up reel for winding the strip delivered from the supply reel together with a second interleaver; In the belt-like body supply and take-up device, the belt-like body supply and take-up device includes a torque control unit that maintains the tension of the band body constant by adjusting the driving torque of the supply reel and the take-up reel. supply reel winding diameter detection means attached to the first interleaver to detect the winding diameter of the supply reel and sending the information to the torque control section; The present invention is characterized in that it is provided with a take-up reel winding diameter detection means for detecting the winding diameter of the take-up reel and sending the information to the torque control section.

A second invention for achieving the above object includes: a supply reel on which a strip is wound together with a first interleaver; a take-up reel for winding the strip delivered from the supply reel together with a second interleaver; In the belt-shaped body supply and winding device, the belt-shaped body supply and winding device includes a torque control unit that maintains the tension of the band-shaped body constant by adjusting the driving torque of the supply reel and the take-up reel. 1
a first reel winding diameter detecting means that is attached to the first interleaver on the outermost circumference of the reel to detect the winding diameter of the first reel and sends the information to the torque control section, and the second interleaver is wound thereon. A second reel winding diameter detection means is provided attached to the second interleaver on the outermost periphery of the second reel to detect the winding diameter of the second reel and send the information to the torque control section. That is.

[Effect]

According to the first aspect of the invention, with the above configuration, the interleaver for preventing damage caused by contact between the strips is wound around the supply reel and the take-up reel together with the strip. Each winding diameter detection means is attached to the outer interleaver to detect the winding diameters of the supply reel and the take-up reel. Therefore, each winding diameter detection means does not come into direct contact with the strip. Since the tension applied to the strip is proportional to the product of the driving torque and the winding diameter, the torque ffNJ! The tension of the strip is maintained constant by adjusting the driving torque of the supply reel and take-up reel based on the winding diameter detected by each winding diameter detection means according to the first part number.

According to the second invention, with the above-described configuration, for example, the diameter of the first interleaver wound on the first reel and the diameter of the winding remaining on the supply reel are in a constant relationship, and the diameter of the first interleaver wound on the first reel is fixed. By detecting the winding diameter of the first interleaver, the winding diameter of the supply reel can be easily determined.
The first reel diameter detection means detects the diameter of the first reel, and the second reel diameter detection means similarly detects the diameter of the second reel. Therefore, each winding diameter detection means does not come into contact with the strip. The diameters of the first and second interleavers wound on the first and second reels detected by each winding diameter detection means are adjusted to the winding diameters of the supply reel and take-up reel by the torque control section based on the above relationship. converted,
Further, the torque control section adjusts the driving torque of the supply reel and take-up reel based on this winding diameter to maintain the tension of the strip at a constant level.

〔Example〕

A first embodiment of the present invention will be described below with reference to FIGS. 1 and 3. FIG. 1 shows the first embodiment of the present invention.
” A diagram showing the main parts of the A B tape inspection device, and FIG. 3 is a diagram of the overall basic configuration.

In FIG. 3, this apparatus has a supply reel j for supplying a TAB tape (band-shaped body) 3 and a take-up reel 11 for winding up the T'AB tape 3. Also, between the supply reel and the take-up reel 11, there is a position detection device 21, an automatic inspection section 31, a verification section 41, a visual inspection section 51, a puncher 61, an operation section 71, a splice plate 81, etc. is provided.

A first interleaver 5, which serves as a protective film to prevent the TAB tapes from coming into contact with each other, is also wound on the supply reel l around which the T''A B tape 3 is wound. This is for winding up the first interleaver 5 separately from the TAB tape 3. Conversely, when winding up the TAB tape 3 that has been inspected using the take-up reel 11, another second interleaver 15 is wound from the reel 17. The delivered tag is again wound together with the TAB tape 3 onto the take-up reel 11.

The position detection device 21 is for detecting which part of the FAB tape 3 is being inspected.
Count the number of times that light from the light emitting means provided at the bottom of the TAB tape 3 to the light receiving means provided at the top of the TAB tape passes through (or is blocked by) the sprocket hole i3 provided on the edge piece of the TAB tape 3. .

The automatic inspection unit 31 is a unit that automatically inspects the top and bottom of each frame for damage, pattern deviation, etc. using image recognition technology, and specifically, the line sensor camera 33
The image obtained is sent to the signal processing device 35, and the presence or absence of a flit defect is determined by performing pattern masoching between this image and a reference image stored in advance. The position of the frame on the TAB tape 3 in which the symbol ① is based is stored in a storage device (not shown) via the signal processing device 35. The offline dialog system 101 connected to the automatic inspection section 31 allows the automatic inspection section 31 to arbitrarily change the criteria for determining damage and the like.

- There are many different types of damage and dimensional deviations, and the criteria for determining defects differ depending on the accuracy required for the IC being mounted.Therefore, this offline dialogue By providing the system 101, the operator can flexibly respond to the intended use and required quality of the automatic inspection section 31 and the TAB tape 3.

The illustrating section 41 is for displaying the defects inspected by the automatic inspection section 3I on a television screen. That is, when a flaw is discovered on the TAB Teso 3 by the automatic inspection section 31, a signal indicating the theoretical location thereof is sent from the signal processing device 35 to the TV camera position control section 43. T
The V-camera position control section 43 moves the television camera 45 to a vague position in response to this signal, and sends the image signal to the television monitor 47. The operator can check this image to check for defects if necessary.

The visual inspection section 5I has the same role as the verification section 41, but whereas the verification section 41 confirms defects through the television monitor 47, it is an optical stereoscopic microscope. The 11 flaws are observed with the naked eye.

The television camera 45 or the television monitor 47 may have insufficient resolution, and in such cases the visual inspection section 51
It is possible to supplement the function of the erification section 41. Further, when the verification section 41 does not operate due to a failure, the visual inspection section 51 can confirm the defect.

1 When the puncher 61 receives information that fN ME has been detected from the signal processing device 35 of the automatic inspection section 31, it waits for the defective frame to be transferred to the position of the puncher 6J, and then operates the TAB Punch tape 3. The hole created at this time has a diameter that is easily visible to the naked eye.
For example, let it be 5n.

Further, if the automatic inspection section 31 has a function of not only identifying the presence or absence of a defect but also the type of defect, marking may be performed accordingly.

Instead of operating the puncher 61 under the control of the signal processing device 35 as described above, the puncher 61 operates under the control of the operating section 71.
The drilling is stopped once by button 73.

You can also In this way, the automatic inspection section 31
■Even if the part is determined to be a defect, as a result of the operator's confirmation in the verification section 41 or the visual inspection section 51, the IC
If it is ultimately determined that it is possible to implement this, it is possible to avoid drilling holes in that frame. In this case as well, multiple types of markings are possible depending on the type of defect. Although the puncher 61 is used in this embodiment, other punches may be used as long as they can be recognized with the naked eye.For example, special characters or symbols may be attached to a frame with defects.

The splicer 81 is a device that, when a large number of flaws are detected across consecutive frames of the TAB tape 3, cuts out several consecutive frames and rejoins the front and back of the part. FIG. 4 is a schematic perspective view of this splicer 81. When a flaw is continuously detected on the TAB tape 3 over a predetermined number of frames or more (for example, 10 frames or more), information about the flawed frame is transmitted to the signal processing device of the automatic inspection section 31. 35 to splicer 81
sent to. Based on this information, the splicer 81 continuously cuts the flawed part with a special force/tweak 83, and also cuts the end face of the front part 3a and the rear part 3 of the cut part.
b and the end faces thereof are butted against each other as shown in FIG. 4 and joined with splicing tape 85. After this, the molded cassock 87
By rotating and tilting the splicing tape 83 in the direction of the arrow Y in the same figure, the portion of the splicing tape 83 protruding from the TAB tape 3 is removed, and at the same time, a sprocket hole is made in the splicing tape 83. In this way, a predetermined number or more consecutive frames with defects can be removed from the inspected TAB tape 3.

Next, the main parts of the first embodiment of the present invention will be explained.

In FIG. 1, a roller 111 is rotatably mounted on the tip of a lever 113, and the lever 113 is urged to rotate clockwise about a fulcrum 115. Due to this, the roller 111 is lightly attached to the first interleaver 5 at the outermost periphery of the supply reel 1 . Similarly, on the take-up side, the lever 119 is urged to rotate counterclockwise about the fulcrum 121, and the roller 117 is lightly attached to the second interleaver 15 at the outermost periphery of the take-up reel. Therefore, both rollers 111 and 117 are TAB
There is no direct contact with the tape 3.

When the TAB tape 3 is conveyed in the direction of the arrow during inspection, (
The winding diameter of the Jj supply reel 1 decreases and the lever 113 rotates clockwise. Conversely, the winding diameter of the take-up reel 11 increases, and the lever 19 is moved clockwise.

The rotation angles of the levers 113 and 219 are converted into electrical signals and transmitted to a torque control section (not shown).

In order to apply a predetermined tension to the TAB tape 3 during inspection, a torque motor (not shown) that drives the take-up reel 11 drives the take-up reel 11 counterclockwise, and the supply reel 1 is also moved clockwise by the torque motor. driven by T
The tension of AB tape 3 is determined by the supply reel 1 and take-up reel 11.
The torque controller adjusts each drive torque in accordance with changes in the winding diameters of the supply reel 1 and take-up reel 11 as the TAB tape 3 is transported. The tension applied to the TAB tape 3 is maintained constant.

FIG. 2 is a diagram showing the main parts of a second embodiment of the present invention. The difference between the second embodiment and the first embodiment is that the winding diameter detection means is connected to the supply reel 1 and the take-up reel 1 in the first embodiment.
1, whereas in the second embodiment, they are installed on reel 7 and reel 17. The other configurations are similar to the first embodiment. In this example, the winding diameter of reel 7 and the supply reel 1 are
between the diameter of the reel 17 and the diameter of the take-up reel 11
Taking note of the fact that there is a certain relationship between the winding diameter of the reel 7 and the reel 17, rollers 123 and 129 and levers 125 and 131 are provided on the reel 7 and the reel 17. That is, when the winding diameter of the supply reel 1 decreases as the TAB tape 3 is transported, the winding diameter of the first interleaver 5 wound around the reel 7 increases accordingly. - When the winding diameter of the take-up reel 11 increases, the winding diameter of the second interleaver 15 wound around the reel 17 decreases accordingly. Therefore, by detecting the winding diameters of reel 7 and reel 17, the winding diameters of supply reel 1 and take-up reel 11 can be indirectly determined.

As in the first embodiment, the rotation angles of the levers 125 and 13 are converted into electrical signals and transmitted to the torque control section. Based on this signal, the torque control section converts the winding diameters of reel 7 and reel 17 into the winding diameters of supply reel 1 and take-up reel 11, and then adjusts the winding diameters of supply reel 1 and take-up reel 11 so that the tension applied to TAB6 tape 3 is constant. control the driving torque of the

In the second embodiment, the rollers 123 and 129 do not come into contact with the TAB tape 3.

Although the above embodiment has been explained using an inspection apparatus for TAB tape as an example, the present invention is not limited to the above embodiment, but can be widely applied to an inspection apparatus for -S long articles.

[Effects of the Invention] As explained above, according to the present invention, since the winding diameter detection means necessary for maintaining the tension of the strip at a constant level is brought into contact with the strip through the interleaver, It is possible to provide a belt-shaped body supply and winding device that has less risk of damage or pattern omission than when direct contact is made.

Further, according to the present invention, by providing the winding diameter detection means on the interleaver reel, the winding diameter of the strip is indirectly detected. It is possible to provide a belt-like body supply and winding device that does not cause damage to the body or lack of patterns.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram showing the first embodiment of the present invention;
The figure is a schematic diagram showing a second embodiment of the present invention, Figure 3 is a schematic diagram of an apparatus to which the embodiment of the present invention is applied, Figure 4 is a schematic perspective view of a splicer, and Figure 5 is a conventional technique. FIG. 1... Supply reel, 3... TAB tape, 5.15
...Interleaver, 7.17..Reel, 11..Take-up reel, 21..
...Position detection device, 31...Automatic inspection section, 41...
Verification section, 5I...Visual inspection section, 61...Puncher, 71...
6 operation unit, 81..., splicer, 101... offline dialogue system, 111, 117, 123, 129,
... Laura, 113, 119, 125, 131...
Lever 115, 121, 127, 133... Fulcrum.

Claims (2)

[Claims] (1) A supply reel on which a strip is wound together with a first interleaver, a take-up reel that winds a strip sent out from the supply reel together with a second interleaver, and driving of the supply reel and the take-up reel. A belt-like body supply and winding device is provided with a torque control unit that maintains the tension of the belt-like body at a constant level by adjusting torque. supply reel winding diameter detection means for detecting a winding diameter and sending the information to the torque control section; a winding reel winding diameter detecting means for sending the winding diameter to the torque control section. (2) Drive of the supply reel around which the strip is wound together with the first interleaver, the take-up reel that winds the strip sent out from the supply reel together with the second interleaver, and the supply reel and the take-up reel. In the belt-shaped body supply and winding device, the belt-shaped body supplying and winding device includes a torque control unit that maintains the tension of the band-shaped body constant by adjusting torque, and the first interleaver is placed on the outermost periphery of a first reel that winds the first interleaver. a first reel winding diameter detecting means that is attached to detect the winding diameter of the first reel and sends the information to the torque control section; A belt-like body supply and take-up device, characterized in that a second reel winding diameter detection means is attached to the interleaver to detect the winding diameter of the second reel and send the information to the torque control section.