JPH10203506A - Embossed taping equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase application time and to obtain stable application without lengthening one cycle time. SOLUTION: A carrier tape 1 is sent one pitch a time by chain sprockets 3, 4. At an IC insertion position, an IC is inserted in the pocket 1a of the carrier tape 1. Several pitches after that, a clamp moving unit 10 is provided, and a cover tape 7 is overlaid on the carrier tape 1 at this position. When one pitch movement of the carrier tape is completed, a tape application tool 11 moves down to clamp the carrier tape 1 and the cover tape 7 between the tape application tool 11 and a carrier tape receiver 22, and thermocompression bonding is started. In this condition, the chain sprockets 3, 4 start rotating, and simultaneously, the tape application tool 11 and the carrier tape receiver 22 also start moving, transporting the tape at one pitch. After this, the application tool 11 and the tape receiver 22 return to the initial position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an emboss taping device for accommodating an electronic component such as an IC in a carrier tape and covering it with a cover film.

[0002]

2. Description of the Related Art As a shipping form of electronic parts such as ICs, there is a method of shipping electronic parts housed in pockets of a carrier tape and wound up on reels. FIG. 7 is a perspective view for explaining a packed state of electronic components. A carrier tape 31 which is a long resin molded product is formed with a pocket 31a for accommodating components, and further for feeding the tape. Feed pin holes (sprocket holes) are opened at one pitch on one side of the tape. In the emboss taping device, after the IC 9 is stored in the pocket 31a, a cover tape is overlaid and thermocompression-bonded.

FIG. 8 is a configuration diagram schematically showing a conventional emboss taping device. The carrier tape 31 pulled out from the supply reel 32 is intermittently conveyed by one pitch (for one pocket) by rotating the sprockets 33 and 34 having the feed pins 33a and 34a by a fixed amount. During the conveyance, the IC 9 is inserted into the pocket 31a of the carrier tape 31 by an IC insertion hand (not shown). After several pitches, cover tape reel 3
The cover tape 37 sent out from 6 is fitted so as to cover the pocket 31 a of the carrier tape 31. When the tape stops in this state, the air cylinder 30a of the crimping section 30 operates to lower the crimping tool 30b, thereby thermocompression bonding the cover tape 77 onto the carrier tape. The carrier tape 31 into which the IC is inserted and covered with the cover tape is wound around the storage reel 35. The carrier tape 31 and the cover tape 37 pulled out from the reel are given a certain tension by tension applying members 38a and 38b.

FIG. 9 is a cross-sectional view showing the state of the cover tape during thermocompression bonding, as viewed from the tape transport direction. The crimping tool 30b has a shape in which a concave shape is turned upside down when viewed from the tape transport direction, and a heater 39 is embedded in the crimping tool 30b, thereby being heated to about 150 ° C. The carrier tape 31 and the cover tape 37 are connected to the carrier tape receiver 40.
When it is conveyed above in the direction perpendicular to the paper and stopped, as shown in FIG. 9, the pressure bonding tool 30 b descends to sandwich the two tapes with the carrier tape receiver 40 to perform thermocompression bonding.

[0005]

In the above-described conventional taping apparatus, the equipment index (one cycle time) of the embossed taping equipment is usually MIN 1.2 seconds / piece, and the tape crimping time is distributed within that range. . Therefore, even if the material such as tape changes,
In order to control the adhesive strength of the tape in terms of quality, the crimping time cannot be extended as long as a predetermined index is used. Actually, the conditions are determined only by the pressing pressure and the heater temperature. However, since the pressing time cannot be increased, it is difficult to set the conditions.

The situation will be described in more detail with reference to FIG. FIG. 10 is a mechanical timing chart showing an equipment index in a conventional emboss taping device. The apparatus normally uses an index table (cam copying apparatus) or the like to process one cycle in about 1.2 seconds. In the figure, mechanical timings of the carrier tape feeding by the sprocket operation, the IC supply operation, and the tool pressure bonding are shown between 0 ° and 360 °.

In this case, insert the carrier tape from right to left
After the pitch feed is completed (0 ° position in the figure), the IC insertion hand
The operation of sucking the IC, inserting the IC into the pocket and returning to the predetermined position takes about 0.9 seconds from 0 ° to 270 °.
At the same time, the crimping tool starts to descend by the air cylinder, but the crimping operation of the tool must be completed before the IC supply operation is completed. Can only be allocated. In this short time, it is difficult to apply sufficient heat and pressure from the crimping tool. Also,
If the heater temperature is too high, the cover tape will deform,
If the pressure is too high, the tape will break.

Further, in the conventional taping apparatus, the carrier tape rides on guide rails (see FIG. 2) existing before and after the pressure bonding stage, and has only a guide in the left-right direction (perpendicular to the tape transport direction). It is not positioned, and is usually adjusted by the operator positioning the crimping tool in the left-right direction. Thus, the carrier tape is a molded product and is not actually flat. In particular, the periphery of the pocket is rounded. Therefore, when the tool is lowered vertically, the carrier tape may shift depending on how the tool is hit. This is because the tape itself is easily deformed, and this deviation is not corrected even if there is a left and right rail guide before and after the crimping portion. For this reason, the position of the pressure bonding tool with respect to the carrier tape is displaced, so that the pressure bonding area of the cover tape is insufficient and the cover tape peels off. Therefore, the problem to be solved by the present invention is, firstly, to increase the crimping time of the crimping tool to the carrier tape and the cover tape without changing the equipment index, and secondly, when crimping with the crimping tool. Is to prevent the carrier tape from being displaced.

[0009]

According to the present invention, there is provided an emboss taping apparatus for feeding a tape while clamping a carrier tape with a pressing tool. Further, according to the present invention, the carrier tape positioning pin is provided on the crimping tool, and the positioning of the crimping tool and the carrier tape can be performed by inserting the positioning pin into the sprocket hole of the carrier tape prior to tape crimping. A taping device is provided.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embossed taping device according to the present invention comprises a tape transport means (3, 4) for intermittently moving an embossed carrier tape (1) by one pitch and a carrier tape supply section for supplying the embossed carrier tape. (2), a carrier tape storage unit (5) for winding the embossed carrier tape, a component supply unit for supplying components to the pocket (1a) formed on the embossed carrier tape, and components supplied to the pocket. A cover tape supply unit (6) for supplying a cover tape (7) adhered onto the embossed carrier tape in a state, a carrier tape receiver (22) arranged below the conveyed embossed carrier tape, Movably sandwich the embossed carrier tape and the cover tape between the carrier tape receiver Thermo-compression bonding tool (1, a thermal compression bonding person
Wherein the carrier tape receiver and the thermocompression bonding tool can reciprocate in the tape conveying direction, and the tapes are clamped in thermocompression bonding in synchronization with the tape conveying means. It is characterized in that it can be moved in the transport direction.

[0011] More preferably, a plurality of tape positioning pins (21) are held on a support (16) of the thermocompression bonding tool (11), and the carrier tape receiver (2) is provided.
2) Pin holes (2) corresponding to the tape positioning pins are provided.
2a) is opened, and when the thermocompression bonding tool is lowered, the tape positioning pins are opened in the embossed carrier tape (1) prior to clamping the two tapes with the carrier tape receiver. The embossed carrier tape is positioned by inserting the embossed carrier tape into the sprocket hole (1b).

[Operation] According to the taping device configured as described above, the cover tape and the carrier tape are clamped by the thermocompression bonding tool and the carrier tape receiver paired with the thermocompression tool. Move distance. As a result, the tape feeding time and the pressure bonding time can be shared, and the pressure bonding time can be increased from 1.5 times to 2 times as compared with the related art. In addition, when the positioning pins attached to the thermocompression bonding tool are inserted into the sprocket holes of the carrier tape, the positioning of the thermocompression bonding tool and the carrier tape is completely performed, and the displacement and deformation of the carrier tape are corrected. It is possible to suppress a decrease in the crimping area.

[0013]

Next, embodiments of the present invention will be described with reference to the drawings. [First Embodiment] FIG. 1 is a schematic view showing the entire configuration of an emboss taping apparatus according to a first embodiment of the present invention.
The carrier tape 1 pulled out from the supply reel 2 is fed one pitch at a time by sprockets 3 and 4 having feed pins 3a and 4a in a state where a certain tension is applied by a tension applying member 8a. The IC is inserted into the pocket 1a of the carrier tape 1 at the IC insertion position provided during the transport. A tape crimping tool 11 and a tape positioning pin 2 several pitches behind the IC insertion position
1 and a clamp moving unit 10 provided with a carrier tape receiver 22. Here, the cover tape 7 pulled out from the cover tape reel 6 is superimposed on the carrier tape 1. When the movement of the carrier tape 1 by one pitch is completed, the tape crimping tool 11 descends to clamp the carrier tape 1 and the cover tape 7 between the carrier tape receiver 22 and thermocompression bonding is started. In this state, the rotation of the sprockets 3 and 4 starts, and in synchronization therewith, the tape crimping tool 11 and the carrier tape receiver 22 also start moving, and the tape is fed by one pitch. At this time, the tape crimping tool and the carrier tape receiver keep the both tapes clamped, so that the crimping operation is continued during that time. When the tape has been fed by one pitch, the sprockets 3 and 4, the tape crimping tool 11 and the carrier tape receiver 22 stop (at the position indicated by the broken line in the figure), and then the tape crimping tool 11 moves up. 11 returns to the original position, and one cycle ends. The carrier tape to which the cover tape is pressed is wound around the storage reel 5 while applying a constant tension by the tension applying member 8c. In addition,
The transport of the cover tape is performed by clamping and moving the tape with the carrier tape receiver 22 and the tape crimping tool 11, and at this time, a certain tension is applied to the cover tape 7 by the tension applying member 8b. .

FIG. 2 is a perspective view showing the structure of the clamp moving unit 10. As shown in FIG. The movement of the clamp moving unit 10 in the longitudinal direction (X direction) of the carrier tape 1 is performed by an X-axis moving unit 12 having a fixed portion 12a, a movable portion 12b, a screw 12c, and a pole 12d.
The rotation of the motor (not shown) causes the screw 12c to rotate, thereby moving the movable portion 12b in the X direction. Movable part 12b
Is attached with a base plate (A) 13. Below the base plate (A) 13, a carrier tape receiver 22 is disposed via an L-shaped component (lower) 23.

Above the base plate (A) 13, a Z-axis moving unit 14 having a jig cylinder 14a and a shaft 14b is arranged, and the jig cylinder 14a is fixed to the base plate (A) 13, and the jig cylinder 14a is attached to the shaft 14b. A base plate (B) 15 is screwed. Jig cylinder 14
a is connected to a compressor via a pipe (not shown), and is configured so that the shaft 14b can move up and down by shutting off / inflow of air. A slide linear bearing 20 is arranged between the base plate (A) 13 and the base plate (B) 15, and a fixed portion 20 a of the linear slide bearing 20 is fixed to the base plate (A) 13, and the slide portion is provided. Reference numeral 20b is fixed to the base plate (B) 15. An L-shaped component (upper) 16 is fixed to the base plate (B) 15, and the tape crimping tool 11 is fixed to the L-shaped component (upper) 16 via a heat insulating member. A heater 17 and a thermocouple 18 are embedded in the tape crimping tool 11 so that the tool can maintain a predetermined temperature (about 150 ° C.). L-shaped parts (top)
16 also holds three tape positioning pins 21 for positioning the carrier tape 1. The diameter of the positioning pin 21 is smaller than the feed pin hole 1b of the carrier tape 1. This clamp moving unit 1
0 before and after the tape feed direction of the carrier tape 1
Although a feed guide rail 24 for restricting the movement in the direction is arranged, only the one arranged rearward is shown in the figure.

Next, the tape crimping tool 11 and the carrier tape receiver 22 will be described in more detail with reference to FIG. Immediately below a portion of the carrier tape 1 which is in contact with the pressure-bonded surface, a carrier tape receiver 22 having a concave cross-sectional shape is formed with an escape groove formed so as not to touch the pocket 1a. The tape 1 is in contact with the lower surface of the flat portion. The carrier tape receiver 22 has a tape positioning pin hole 22a penetrating in a vertical direction at a position corresponding to the tape positioning pin 21.
Are opened at three places. In addition, carrier tape receiver 2
Tape guides 22b that can regulate the movement of the carrier tape 1 in the Y direction are provided on the left and right sides of 2. The length of the carrier tape receiver 22 in the tape feed direction is two pitches of the pocket 1a of the carrier tape 1. The tape receiver 22 is made of SK having high wear resistance.
It is formed using a material and is baked.

The tape crimping tool 11 fixed to the L-shaped part (upper) 16 via a heat insulating member 19 has a cross section having an inverted concave shape, and the cover tape 7 overlapped with the carrier tape 1. Of the carrier tape 1 from the end surface of the cover tape 7 from above, that is, from the end surface of the cover tape 7. .
The length of the crimping tool 11 in the tape feed direction is (1+
α) There is a pitch, where α is an amount that overlaps in front and rear pocket units. The tape crimping tool 11 is formed using stainless steel having excellent wear resistance. However, when giving priority to heat conduction, this tool may be formed by using a copper-based material such as brass or phosphor bronze instead of stainless steel although the wear resistance is slightly lowered.

(Explanation of Operation) Next, the operation of the first embodiment of the present invention will be described in detail with reference to FIGS. Before describing the operation, an initial state of the equipment will be described first. The carrier tape 1 is pulled out of the supply reel 2 by hand, hanged on the tension applying member 8a, hanged on the feed pin 3a of the sprocket 3, and put on the feed guide rail on the near side, the carrier tape receiver 22 and the feed guide rail on the rear side. The sprocket 4 is put on, passed over the feed pin 4 a of the sprocket 4, and wound around the storage reel unit 23. The carrier tape 1 is floated so as not to touch the carrier tape receiver 32. The cover tape 7 passes under the tape crimping tool 11 and fits on the carrier tape 1.
The sprockets 3 and 4 are operated while the tape is pressed by the clamp moving unit 10, and the sprockets 3 and 4 are fed to the storage side.

Next, the operation from the initial state will be mainly described.
This will be described with reference to FIG. Use sprockets 3 and 4 to
The carrier tape 1 is fed by one pitch [FIG. 4 (a)]. You
Then, the L-shaped part (upper) 16 starts to descend, and
3 positions of carrier tape 1
Of the carrier tape 1
The tape crimping tool 11 descends while correcting the
-Receive carrier tape 7 and carrier tape 1
3kg / cm with tape ^Two Before and after
Pressure is applied (FIG. 4B). This tape
While being clamped, the sprockets 3 and 4
1 pitch by the X-axis moving unit 12 at the same speed as
(FIG. 4 (c)). After one pitch move is completed
After that, the tape crimping tool 11 is raised and returns to its original position (right
Return to the side origin). At this time, the carrier tape receiver 22
At the same time, it returns to the original position [FIG. 4 (d)].

FIG. 5 shows an embossed taping device according to the present invention.
It operates with the equipment index shown in. One cycle can be operated in about 1.2 seconds. The figure shows mechanical timing charts of carrier tape feeding by sprocket operation, IC supply operation, X-axis movement and Z-axis movement of the clamp moving unit, and tool crimping time. Between 360 ° and 360 °. After the completion of one pitch transfer of the carrier tape from right to left (0 ° position), the IC is sucked from a position (not shown) by the IC insertion hand and inserted into a pocket (270 ° position) for 0.9 seconds. At this time, the tape crimping tool maintains the clamped state until 0.3 seconds elapse (90 ° position), then rises (Z axis), and when completed, returns at a high speed by a predetermined pitch (X axis) (180 °). Position) and descend again to clamp the carrier tape and the cover tape (270 ° position).

The tape crimping tool can be raised and returned at a timing when the tape positioning pin is disengaged from the feed pin hole of the carrier tape, and can be moved at high speed in the X-axis direction by a motor. The operation can be completed in 3 seconds. Therefore, the crimping time of the tape crimping tool is 2
0.6 seconds between 70 ° and 90 °.

[Second Embodiment] FIG. 6 is a sectional view showing a state of a crimping portion according to a second embodiment of the present invention. The second embodiment is different from the first embodiment in that an L-shaped part (upper) 1 for holding a tape crimping tool 11 in the second embodiment.
6 is provided with a tape holder 25 having a tape holder 25a and a spring 25b. The L-shaped part (upper) 16 is spread laterally, and tape holding holes 16a for passing a tape holding 25a are formed on both sides. The tape retainer 25a is inserted into the hole 16a through a spring 25b so as to be able to move up and down.
At both ends of the tape retainer 25a, a flange portion is formed to form a pressing portion and to prevent falling off. The lower surface of the pressing portion formed at the tip of the tape retainer 25a is flat, and the tape positioning pin
The height is slightly lower than the tip of 1. The spring 25b does not damage the cover tape 7 or the carrier tape 1 when the L-shaped component (upper) 16 is lowered, and has a spring constant that is strong enough to be aligned with the tape positioning pins 21.

(Explanation of Operation) In the taping device of this embodiment, when the tape pressing tool 11 is lowered, the tape presser 25a first presses the cover tape 7 or the carrier tape 1 lightly, and then the tape positioning pin 21 Into the feed pin hole 1b of the carrier tape 1. In the apparatus according to the first embodiment, when the tape positioning pins are inserted, if the cover tape or the carrier tape is floating, the pins are not inserted properly, and the positioning pins may damage the carrier tape or the like. However, in the apparatus of the present embodiment, since the positioning pin is inserted after the tape is first held down by the tape holder 25a, the pin is inserted smoothly, and damage to the carrier tape is prevented. You.

[0024]

As described above, the taping device of the present invention transports the tape in synchronization with the tape transport sprocket in a state where the tape crimping tool clamps the carrier tape and the cover tape. In addition, the pressure bonding time of the tape can be 1.5 to 2 times that of the conventional tape. Therefore, according to the present invention, it becomes easy to set the conditions for the crimping, and it is possible to perform stable taping without causing a defect. In addition, since the positioning pin inserted into the sprocket hole of the carrier tape is attached to the crimping tool, it is possible to perform crimping after the tape is positioned, preventing the reduction of the crimping area due to displacement. Thus, it is possible to secure a sufficient pressure bonding area.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing the overall configuration of a first embodiment of the present invention.

FIG. 2 is a perspective view of a clamp moving unit according to the first embodiment of the present invention.

FIG. 3 is a sectional view showing a tape clamped state by the crimping tool according to the first embodiment of the present invention.

FIG. 4 is an operation explanatory diagram of the first embodiment of the present invention.

FIG. 5 is a mechanical timing chart for explaining the operation of the first embodiment of the present invention.

FIG. 6 is a cross-sectional view of a crimping tool section for explaining a second embodiment of the present invention.

FIG. 7 is a perspective view for explaining a carrier tape and a taping operation.

FIG. 8 is a schematic diagram showing the entire configuration of a conventional example.

FIG. 9 is a cross-sectional view for explaining a crimping operation of a conventional example.

FIG. 10 is a mechanical timing chart for explaining the operation of the conventional example.

[Explanation of symbols]

 1, 31 Carrier tape 1a, 31a Pocket 1b, 31b Feed pin hole 2, 32 Supply reel 3, 4, 33, 34 Sprocket 3a, 4a, 33a, 34a Feed pin 5, 35 Storage reel 6, 36 Cover tape reel 7 , 37 cover tape 8a to 8c, 38a, 38b tension applying member 9 IC 10 clamp moving unit 11 tape crimping tool 12 X-axis moving unit 12a fixed part 12b movable part 12c screw 12d pole 13 base plate (A) 14 Z-axis moving unit 14a Jig cylinder 14b Shaft 15 Base plate (B) 16 L-shaped part (upper) 16a Tape holding hole 17, 39 Heater 18 Thermocouple 19 Insulation member 20 Slide linear bearing 20a Fixed part 20b Slide part 21 Tape positioning pin 22 , 40 Carrier tape receiver 22a Tape positioning pin hole 22b Tape guide 23 L-shaped part (lower) 24 Feed guide rail 25 Tape holding part 25a Tape holding 25b Spring 30 Crimping part 30a Air cylinder 30b Crimping tool

Claims (4)

[Claims] 1. An embossed carrier tape for intermittently moving an embossed carrier tape by one pitch, a carrier tape supply unit for supplying an embossed carrier tape, a carrier tape storage unit for winding the embossed carrier tape, and the embossed carrier tape. A component supply unit for supplying components to the pocket formed in the pocket, a cover tape supply unit for supplying a cover tape adhered onto the embossed carrier tape in a state where components are supplied in the pocket, and the emboss to be conveyed. An embossing device comprising: a carrier tape receiver disposed below a carrier tape; and a thermocompression bonding tool that sandwiches the embossed carrier tape and the cover tape between the carrier tape receiver and can be moved up and down to thermocompress the two. In the taping device, the carrier tape receiver and the heat An emboss taping device characterized by being capable of reciprocating in a tape conveying direction with a pressure bonding tool, and moving in a tape conveying direction in a state where both tapes are clamped in synchronization with the tape conveying means at the time of thermocompression bonding. 2. A plurality of tape positioning pins are fixed to a support of the thermocompression bonding tool, and a pin hole corresponding to the tape positioning pin is opened in the carrier tape receiver. When the embossed carrier tape is inserted, the tape positioning pins are inserted into sprocket holes opened in the embossed carrier tape prior to sandwiching the two tapes with the carrier tape receiver, thereby positioning the embossed carrier tape. The emboss taping device according to claim 1, wherein: 3. A support for the thermocompression bonding tool is provided with a tape pressing portion, whereby the tape positioning pin is inserted into a sprocket hole of the carrier tape while the carrier tape and the cover tape are lightly pressed. The emboss taping device according to claim 2, wherein the emboss taping is performed. 4. The tape holding section includes a tape holding pin and a spring for urging the tape holding pin downward, and a hole through which the tape holding pin can be vertically moved is formed in the support. The emboss taping device according to claim 3, wherein