JP2001291724A - Lead frame supplying equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continuously operate lead frame supplying equipment and to lighten the burdens imposed on workers, and then, to make type changes easier. SOLUTION: This lead frame supplying equipment is operated continuously without stoppage in such a way that a separating section 18 carries lead frame cases 2 and 102 beyond a stopper 13 and separately positions the cases 2 and 102 to two separated positions 15 and 16 and a suctional transporting section 30 suctionally transports the lead frames in the case 102 positioned to one of the separated positions 15 and 16 to a prescribed position and inserting paper to the empty case 2 positioned to the other separated position. Then an empty case lowering section 41 lowers the empty case 2 housing the inserting paper only, and a projecting section 44 discharges the lowered empty case 2 from the lowered position. Consequently, lead frames each containing a plurality of lead frames or inserting paper can be thrown continuously in the transporting section 3 and a facility can be operated continuously without stoppage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a lead frame supply device for supplying a lead frame from a lead frame case in a die bonding process of semiconductor manufacturing.

[0002]

2. Description of the Related Art As a conventional lead frame supply device in a die bonding process, there is a lead frame supply device 101 as shown in FIGS. As shown in FIG. 7, a lead frame 103 is
Are inserted between the lead frames 103, and interleaving sheets 104 are alternately inserted between the lead frames 103 for protection. As shown in FIGS. 8 and 9, as the configuration of the lead frame supply device 101, a detachable lead frame case cassette unit 105 that accommodates a plurality of lead frame cases 102 includes
Setting part 10 for positioning lead frame case 102
6 are provided. The lead frame case elevating unit 107 that raises the lead frame case 102 includes a lead detecting unit 108 that detects a position where the lead frame 103, the interleaving paper 104, and the lead frame case 102 can be sucked.
Is provided. Lead frame case cassette part 1
A removable storage section 109 for storing the interleaved paper 104 and the emptied lead frame case 102 is provided next to 05.
The lead frame 103 is transported from the lead frame case cassette section 105 to the supply station 110, and the insertion sheet 104 and the empty lead frame case 102 are stored in the storage section 10.
9 is provided. The suction unit 111 includes a vertically moving body and a movement in the Y direction.
A known suction unit 111 includes a lead frame detection unit 112 that detects the conductivity of the lead frame 103 and the insulation between the insertion sheet 104 and the lead frame case 102.

[0003] The supply operation of the lead frame 103 will be specifically described below.

An operator sets a lead frame case 102 in which a lead frame 103 and an interleaf 104 are stored in a lead frame case cassette 105. The lead frame case 102 is the lead frame 10
Since it is formed in accordance with the external dimensions of No. 3, there are many types. Therefore, it is necessary to adjust the positioning of the setting portion 106 in accordance with the lead frame case 102. From the viewpoint of workability, the number of sets of the lead frame case 102 is 3
It is a set of pieces.

[0005] The cassette in which the lead frame case 102 is set is set at a predetermined position of the lead frame supply device 101 by an operator. An empty storage unit 109 is set on the side. In this state, the operation of the lead frame supply device 101 is started.

[0006] When the operation is started, the lead frame case elevating section 107 is raised. Due to the rise, the lead frame case 102 of the lead frame cassette unit 105 rises until the rise detection unit 108 detects it. Then, the suction unit 1
11 falls. Lead frame detector 1
As a result of the detection at 12, the lead frame 103 in the lead frame case 102 is sucked up and supplied to the supply station 110. In the case of the interleaf paper 104, it is sucked up and stored in the horizontal storage part 109.

[0007] Each time the suction operation is performed, the lead frame case elevating unit 107 repeats the elevating operation until the elevating unit 108 detects it. By repeating this, the lead frame 103 and the interleaf 104 in the lead frame case 102 are all discharged. Empty lead frame case 10
2 is sucked and raised by the suction unit 111, and
Is stored in. With the above operation, the lead frame 103 and the interleaf 104 in the next lead frame case 102 are discharged. When all the lead frame cases 102 of the lead frame case cassette unit 105 have been discharged, the lead frame elevating unit 107 descends to notify the operator.

An operator pulls out the lead frame case cassette unit 105 from the lead frame supply device 101, and
The next lead frame case 102 is set. The storage unit 109 also takes out the inserted interleaf paper 104 and the empty lead frame case 102 that have been extracted and stored. Then, they are set in the lead frame supply device 101, respectively. In this cycle, the lead frame supply device 101 restarts its operation.

[0009]

However, in the lead frame supply device 101 as described above, the lead frame 1 set in the lead frame case cassette 105 is not used.
When all 03 are discharged, the next lead frame case 1
It is necessary to stop the equipment until 02 is set, which is a major factor that lowers the equipment operation rate. In addition, when the number of sets of the lead frame case 102 is increased, the lead frame case 102 becomes heavier and is difficult to handle, and the burden on the operator increases,
This is a major problem for continuous operation.

In addition, when the type of the lead frame 103 is changed, the positioning of the setting portion 106 must be adjusted in accordance with the lead frame case 102. During this time, there is a problem that the equipment stops.

Further, since the interleaving paper 104 and the lead frame case 102 are not arranged and stored in the storage unit 109, it is necessary for an operator to take out the interleaving paper from the storage unit 109 and pack the interleaving paper 104 into the lead frame case 102. is there.
Since the interleaving paper 104 and the lead frame case 102 are reused, the above operation is necessary, and there is a problem that the burden on the operator is large.

In addition, the lead frame cassette unit 105
Although the same number of sets is set for the storage section 109 and the storage section 109, the insertion section 104 is inserted in the storage section 109 as described above.
Since the lead frame case 102 and the lead frame case 102 are not aligned, there is also a problem that the storage portion 109 is quickly filled and the equipment stops.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a lead frame supply apparatus capable of continuously operating the supply of lead frames, reducing the burden on an operator, and facilitating type switching.

[0014]

According to a first aspect of the present invention, there is provided a lead frame supply apparatus comprising: a plurality of lead frames inserted between a plurality of lead frames after an empty lead frame case; A transport unit that places the lead frame case containing the inserted interleaved paper and transports it in the horizontal direction, a stopper provided at an end of the transport unit that stops the lead frame case, and reaches the stopper. A lead frame case detector that detects the presence or absence of the lead frame case and controls the operation of the transport unit; and a separation unit that transports the lead frame case over the stopper and separates each lead frame case into two separation positions. A guide that is arranged in parallel with the transport direction of the lead frame case and that regulates one side of the lead frame case;
A guide pin provided at the separation position of the lead frame case to set one side in the transport direction of the lead frame case; a guide positioning setting portion for positioning and setting the lead frame case separated at the separation position of 2 to the guide side; A guide pin positioning and regulating portion for positioning and regulating the separated lead frame case to the guide pin side; a lead frame in the lead frame case arranged at one of the two separated positions at a predetermined position; And a discharge unit for discharging an empty lead frame case containing only the interleaved paper, respectively.

The lead frame supply apparatus having the above-described structure is provided with a lead frame case having an empty lead frame case at the head and then a lead frame case having a plurality of lead frame cases in which lead frames and interleaved sheets are alternately stored. Send the lead frame case to the stopper side. When it comes into contact with the stopper, the presence of the lead frame case is detected by the lead frame case detection unit. The transport unit stops upon detection. In this state, the separation unit operates, and rises from the lower surface of the transport unit on the stopper side, and lifts the leading empty lead frame case to a position higher than the stopper. Next, the lead frame case is horizontally moved to the first separation position, and is lowered until the lead frame case is placed at the first separation position. When the placement is confirmed, the positioning corrector is actuated to correct the position of the lead frame case until it contacts the guide and the guide pin. When the positioning is confirmed, the positioning portion returns to the open position.

When the empty lead frame case moves away from the transport section, the transport section operates. The next lead frame case comes into contact with the stopper by the operation of the transport unit. The transport unit stops upon detection of the lead frame case detection unit. In this state, the separating section operates to separate the lead frame case from the transport section. The operation of the separation unit raises the empty lead frame case at the first separation position and the lead frame case in contact with the stopper.

Next, the empty lead frame case is moved to the second separation position, and the lead frame case, in which the lead frame and the interleaf sheet are stored, is simultaneously moved to the first separation position. Lower until it is placed in position.

When the placement is confirmed, the positioning corrector operates to correct the position of the lead frame case at each position. After the positioning, the suction conveyance section waiting above the lead frame at the first separation position and the lead frame case storing the interleaving paper is lowered, and in the case of a lead frame, the suction conveyance section is conveyed to a predetermined position. In the case of paper, the paper is conveyed and stored in an empty lead frame case at the second separation position.

Until the lead frame at the first separation position and the interleaved sheet are discharged, the suction conveyance section sequentially performs the above operations. At the beginning of the lead frame case, the interleaf paper is stored, and then the lead frame is stored alternately. When the discharge of the lead frame and the interleaf paper is completed, the positioning regulation part is released. After the release, the separating section is operated and the lead frame case, in which the interleaf paper at the second separating position is stored, is moved to the empty case lowering section, and the empty lead frame case at the first separating position is moved to the second separating position. Move to At the same time, the next lead frame case on the transport unit is placed at the first separation position.

Then, the lead frame case containing the interleaf paper is discharged. By the above operation, the lead frame supply does not need to stop the equipment, and the continuous operation becomes possible. Even when the type is switched, the adjustment can be performed in a short time by adjusting the separation unit.

According to a second aspect of the present invention, in the first aspect, the suction / conveyance unit detects a difference between the conductivity of the lead frame in the lead frame case and the insulation between the insertion sheet and the lead frame case. A lead frame detector, a presence / absence detector for detecting the presence / absence of the lead frame and the interleaved paper, and a suction nozzle for sucking the lead frame and the interleaved paper.

As a result, the suction conveyance section descends to a position where the lead frame and the interleafable sheet detected by the presence / absence detection section can adsorb. After descending, the lead frame or the interleaved paper is sucked by the suction nozzle, and is transported to a predetermined position in the case of the lead frame by the lead frame detecting unit, and the empty lead frame case at the second separation position in the case of the interleaved paper. Transported and stored.

According to a third aspect of the present invention, in the second aspect of the present invention, the suction transport section has a suction lead frame case detecting section for detecting a difference in reflection between the lead frame, the interleaf sheet and the lead frame case. . As described above, the suction conveyance unit includes the suction lead frame case detection unit that detects a difference in reflection between the lead frame, the interleaf sheet, and the lead frame case. Since the detection can be performed, it is possible to prevent the loss of the lowering operation of the suction conveyance unit.

According to a fourth aspect of the present invention, in the first aspect, the discharging portion includes an empty case lowering portion for lowering an empty lead frame case, and an empty lead frame case lowered by the empty case lowering portion. And a protruding portion for discharging the fluid from the lowered position.

As described above, the discharging portion has the empty case lowering portion for lowering the empty lead frame case and the projecting portion for discharging the empty lead frame case lowered by the empty case lowering portion from the lowering position. The lead frame case in which the interleaving paper of the empty case lowering portion is stored is lowered by the operation of the lowering portion. When the lowering is confirmed, the lead frame case is ejected by the protrusion.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing the entire lead frame supply device according to the first embodiment of the present invention, and FIG. 2 is a perspective view showing a transport unit and a separation unit of the lead frame supply device according to the first embodiment. FIG. 3 is a perspective view showing the entire positioning guide unit and the suction conveyance unit of the lead frame supply device according to the first embodiment. FIG. 4 is a suction conveyance unit of the lead frame supply device according to the first embodiment. FIG. 5 is a perspective view showing an empty case lowering portion of the lead frame supply device according to the first embodiment.

As shown in FIGS. 1 and 2, the lead frame supply device 1 has an empty lead frame case 2 at the top, and then a lead frame 103 as in the conventional example of FIG.
Transport unit 3 including an endless belt 12 for mounting and transporting a plurality of lead frame cases 102 (same as lead frame case 2) in which the lead frame case 102 and the interleaving paper 104 are alternately stored.
It has. At both front and rear ends of the transport section 3, driven pulleys 5 that hold an endless belt 12 are provided. A drive motor 6 as a drive unit is provided on the lower surface of the transport unit 3, and a drive pulley 8 is connected to an output shaft 7 of the drive motor 6. A drive belt 9 is wound around the drive pulley 8 and transmits a driving force to a drive receiving pulley 11 provided on a driven shaft 10. The driven shaft 10 is driven via the drive belt 9 by the drive of the drive motor 6. Driven shaft 10
, The endless belt 12 wound around the driven pulley 5 is driven. The empty lead frame case 2 and the lead frame case 102 placed on the endless belt 12 are transported in the horizontal direction.

A stopper 13 for stopping the transport of the lead frame case 2 and a lead frame case detector 14 for detecting the presence or absence of the lead frame case 2 are provided on the transport side of the transport unit 3. The lead frame case detection unit 14 controls the drive motor 6 and controls the rotation of the endless belt 12.

On the lower surface of the transport section 3, the lead frame cases 2 and 102 are placed one by one, avoiding the stopper 13.
Is separated into two of a separation position 15 and a second separation position 16,
Driven by square motion, two arms 1
7 is provided. The arm 17 can be adjusted according to the width of the lead frame cases 2 and 102. The arms 17 are connected by connecting rods 19.

First separation position 15 and second separation position 16
In order to detect the presence / absence of the lead frame cases 2 and 102, respectively, a case presence / absence detector 15 'is provided at the first separation position 15 and a case presence / absence detector 1 is provided at the second separation position 16.
6 'is attached. Also, lead frame cases 2 and 1
02 lead frame case 2, 10 parallel to the transport direction
A guide 20 that regulates one side of the device 2 is provided. The guide 20 is also installed at the position of the separation unit 18. Also,
The lead frame cases 2 and 102
A guide pin 21 for regulating one side in the transport direction is provided.

As shown in FIG. 3, a guide positioning portion 22 for positioning and positioning the guide frame 20 of the lead frame cases 2 and 102 separated at the separation position 2 is driven by a pulse motor 23 to directly connect with a ball screw. The arm 24 is operated via the dynamic bearing. A holding pin 25 corresponding to the setting of the second separation position is mounted on the arm 24. A guide pin positioning and regulating portion 26 for performing positioning and regulation on the guide pin 21 side of the lead frame cases 2 and 102 includes:
When the pulse motor 27 is driven, the arm 28 is operated via the ball screw and the linear motion bearing. A holding pin 29 corresponding to the setting of the second separation position is mounted on the arm 28.

Above the first separation position 15 and the second separation position 16, there is a suction conveyance section 30, which is configured as follows.
As shown in FIG. 4, the conductivity of the lead frame 103 and
The lead frame detection unit 31 detects the difference in insulation between the insertion sheet 104 and the lead frame cases 2 and 102, and a proximity sensor that detects the presence or absence of the lead frame 103, the insertion sheet 104 and the lead frame cases 2 and 102. A presence / absence detection unit 32 and a suction nozzle 33 that suctions the lead frame 103 and the interleaved paper 104 are provided. As shown in FIG. 3, an X-axis arm 35 driven by an X-axis motor 34 includes:
A Y-axis arm 37 driven by a Y-axis motor 36 is held. The Y-axis arm 37 holds a Z-axis arm 39 driven by a Z-axis motor 38. The suction conveyance section 30 is held by the Z-axis arm 39.

By the operation of each arm 35, 37, 39,
The lead frame 103 in the lead frame case 102 is sucked from the first separation position 15 and transported to the supply position 40 for the next operation. The insertion sheet 104 is stored in the empty lead frame case 2 at the second separation position 16. When the inside of the lead frame case 102 at the first separation position 15 becomes empty, the guide positioning and regulating portion 22 and the guide pin positioning and regulating portion 26 are released, and the separating portion 18 operates. Separation unit 1
8, the empty lead frame case 102 at the first separation position 15 is moved to the second separation position 16 as shown in FIG.
As shown in (1), the lead frame case 2 in which the interleaf paper 104 at the second separation position 16 is stored is separated into the discharge sections. At this time, the lead frame case 102 containing the lead frame 103 and the interleaf 104 is separated from the transport unit 3 at the first separation position 15. The discharge section has an empty case descending section 41 and a protruding section 44, and at the upper and lower dead points of the empty case descending section 41, case presence / absence detecting sections 46 and 47 are mounted.

The lead frame case receiver 42 of the empty case lowering portion 41 is driven up and down. In this embodiment, a cylinder 43 is used. Lead frame case receiver 42
Is lowered, and by the operation of the protruding portion 44 at the lowered position,
It is discharged from the lead frame case receiver 42. After the discharge, the lead frame case receiver 42 moves up and waits for the next operation of the separation unit 18. CPU as control means for the above operations
And the like.

Next, the operation of supplying a lead frame by the lead frame supply device 1 configured as described above will be described.

First, an empty lead frame case 2, and then a plurality of lead frame cases 102 in which lead frames 103 and interleaving sheets 104 are alternately stored as shown in FIG.
It is placed on the endless belt 12 of the transport unit 3. When the output shaft 7 is activated by a command from the controller 45, the drive motor 6 drives the drive pulley 8, the drive belt 9, and the drive receiving pulley 1.
1. The endless belt 12 is caused to travel toward the stopper 13 via the driven shaft 10 and the driven pulley 5. As a result, the empty lead frame case 2 on the endless belt 12 and the lead frame case 102 containing the lead frame 103 and the interleaf 104 are conveyed to the stopper 13 side.

When the empty lead frame case 2 reaches the stopper 13, the lead frame case detector 14 is shut off and the drive motor 6
And the endless belt 12 is stopped.

A command is issued from the controller 45 to the separation unit 18 located on the lower surface of the transport unit 3, and the separation operation starts. The two arms 17 move up, and lift the empty lead frame case 2 that has been positioned and stopped by the stopper 13 to a height exceeding the stopper 13. The arm 17 of the separation unit 18 is driven by a square motion, and moves the empty lead frame case 2 horizontally to the first separation position 15, descends and mounts it. The arm 17 returns to the original lower surface position of the transport unit 3.

When it is placed at the first separation position 15, the case presence / absence detection section 15 'is detected, and a command is issued from the controller 45, and the pulse motor 2 of each of the regulation sections 22, 26 is provided.
The strokes 3, 27 are driven by a preset stroke, and the setting is started by the holding pins 25, 29 attached to the arms 24, 28. The lead frame case 2 is positioned and corrected toward the guide 20 by the guide positioning corrector 22 and toward the guide pin 21 by the guide pin positioning corrector 26. When the predetermined stroke operation is confirmed, a command is issued from the controller 45 and the positioning is released.

On the other hand, in the transport section 3, when the empty lead frame case 2 escapes from the transport section 3, the controller 4
5, the lead frame 103 and the interleaf 1
The lead frame case 102 in which 04 is stored is conveyed to the stopper 13 side. Lead frame case detector 1
The endless belt 12 is stopped by the detection at 4.

When the endless belt 12 stops, the operation of the separation unit 18 starts. The two arms 17 move up, and lift the lead frame case 102, which has been positioned and stopped by the stopper 13, to a height beyond the stopper 13.
At that time, the empty lead frame case 2 at the first separation position 15 is also lifted to a height exceeding the guide pins 21. The arm 17 of the separation unit 18 is driven by a square motion to move the lead frame case 102 to the first separation position 15 and the empty lead frame case 2 to the second separation position 15.
Is horizontally transferred to the separation position 16 of FIG. Arm 1
7 returns to the original lower surface position of the transport unit 3.

When the lead frame case 102 is placed at the first separation position 15, the case presence / absence detector 15 'is detected. When the lead frame case 2 is placed at the second separation position 16, the case presence / absence detector 16 'is detected. By the case presence / absence detection units 15 'and 16' at both positions,
A command is issued from the controller 45, and each of the setting units 22,
26 pulse motors 23 and 27 are driven, and the presser pin 2
Regulation begins with 5,29. The setting of each position is linked by the arms 24 and 28, and the setting of the second separation position 16 also starts at the same time. It is regulated to the guide 20 side by the guide positioning regulating part 22 and to the guide pin 21 side by the guide pin positioning regulating part 26.

When the regulation is confirmed, a command is issued from the controller 45, and the suction operation of the suction transfer unit 30 waiting above the first separation position 15 starts. The Z-axis motor 38 is driven, and the Z-axis arm 39 moves down. The suction unit 30 held by the Z-axis arm 39 descends. When the presence / absence detection unit 32 detects, the Z-axis arm 39 stops. At the same time as the stop, the lead frame detecting unit 31 detects whether the lead frame 103 or the interleaf sheet 104 is used.

The suction nozzle 33 operates and holds the suction, and the Z-axis arm 39 is raised. The X-axis motor 34 and the Y-axis motor 36 operate, and the X-axis arm 35 and the Y-axis arm 3
7. The operation of the Z-axis arm 39 causes the lead frame 10
In the case of 3, it is conveyed to the supply position 40 of the next operation. From the supply position 40, it is transported to the next work station (not shown). In the case of the interleaf paper 104, it is conveyed and stored in the empty lead frame case 2 at the separation position 16. The above operations are sequentially repeated, and all the lead frames 103 in the lead frame case 102 at the first separation position 15 are transported to the supply position 40 and the inserted paper 104 is transported and stored in the lead frame case 2 at the second separation position 16. You. At the bottom, an interleaving paper 104 is inserted. Next is the lead frame case 102, which is the lead frame detecting unit 31 continuously twice.
Detects insulation, it is determined that the lead frame case 102 is present, and the suction section 30 does not suction, and stops above the first separation position 15.

The lead frame 10 at the first separation position 15
When all 3 have been conveyed, the guide positioning ruler 22 and the guide pin positioning ruler 26 at each position are released. In the transport unit 3, the next lead frame case 102 has already reached the stopper 13. When each regulation is released,
The operation of the separation unit 18 starts. The two arms 17 are raised, and the lead frame case 102 of the stopper 13 is
The lead frame case 102 emptied at the first separation position 15 is moved to the second separation position 16, and the lead frame case 2 containing the interleaf paper 104 at the second separation position 16 is moved to the second separation position 16. Are separated and conveyed to the lead frame case receiver 42 of the empty case lowering section 41.

When mounted on the lead frame case receiver 42, the case presence / absence detecting section 46 detects. In response to a command from the controller 45, the cylinder 43 operates, and the lead frame case receiver 42 is lowered. After the lowering, when the case presence / absence detecting section 47 detects the state, the projecting section 44 operates, and the lead frame case 2 of the lead frame case receiver 42 is discharged. After the ejection, the lead frame case receiver 42 moves up to the original position.

In the first separation position 15, the lead frame 103 is moved to the supply position 40 by the suction unit 30, and
4 is the lead frame case 102 at the second separation position 16
Transport to

The lead frame 103 is supplied to the supply position 40 while sequentially repeating the above operations. When the number of lead frame cases 102 on the transport unit 3 is reduced, the supply can be performed without stopping the equipment as needed. The interleaving paper 104 is properly stored in the lead frame case 2. In addition, even if the standard of the lead frame case 103 changes and the dimensions of the lead frame case 102 greatly change, the position of the arm 17 can be adjusted by adjusting the connecting rod 19 of the arm 17 of the separation section 18. Can be easily performed.

A second embodiment of the present invention will be described with reference to FIG. FIG. 6 is a perspective view showing a suction conveyance section of a lead frame supply device according to a second embodiment of the present invention. As shown in FIG. 6, the lead frame 103, the interleaving paper 104, and the lead frame case 102
The suction lead frame case detecting section 48 for detecting a difference in reflection of the lead frame is provided. The lead frame case 102 is black and has a difference in reflection as compared with the lead frame 103 and the interleaving paper 104. The rest is the same as in the first embodiment. Therefore, in this embodiment, the same functions and effects as those of the first embodiment can be obtained. In addition, in this embodiment, the suction conveyance section 30 is moved to the first separation position 15.
When the Z-axis arm 39 is moved down and the lead frame detecting unit 31 does not detect the lead frame case 102, the lead frame case 102 can be detected.

[0050]

According to the lead frame supply apparatus of the first aspect of the present invention, a lead frame in which a plurality of lead frames and a sheet inserted between the lead frames are stored after an empty lead frame case. Place the case on the transport unit, transport it horizontally, stop the lead frame case by the stopper provided at the end of the transport unit,
The lead frame case detector detects the presence or absence of the lead frame case that has reached the stopper, controls the operation of the transport unit, and transports the lead frame case over the stopper by the separating unit and separates the lead frame cases one by one into two separate positions. The guide positioned in parallel with the transport direction of the lead frame case regulates one side of the lead frame case, and the guide pins provided at two separated positions regulates one side of the lead frame case in the transport direction. The lead frame case separated at the separation position 2 by the section is positioned and corrected on the guide side, the lead frame case separated at the separation position 2 by the guide pin positioning and correction section is positioned and corrected on the guide pin side, and the suction conveyance section By 2
The lead frame in the lead frame case arranged at one of the separation positions is suction-conveyed to a predetermined position, and the insertion sheet is sucked and conveyed to an empty lead frame case arranged at the other side, and only the insertion sheet is stored. Since the empty lead frame case is discharged, a lead frame in which a plurality of lead frames and interleaved sheets are stored can be continuously loaded on the transport unit.
Therefore, continuous operation can be performed without having to stop the equipment. At the same time, the insertion paper is also stored in the lead frame case, so that the burden on the operator can be reduced. Further, in the case of the type switching in which the standard of the lead frame is changed, it is not necessary to adjust the alignment in accordance with the lead frame case as in the conventional example, and it can be easily performed only by shifting the arm position of the separating section. Furthermore, since there is no interference on the transport section, it is possible to provide a lead frame supply apparatus having an excellent effect that it is easy to cope with automatic supply and can be developed to continuous unmanned supply.

According to the second aspect, the suction conveyance section descends to a position where the lead frame and the interleafable sheet detected by the presence / absence detection section can be adsorbed, and after descending, adsorbs the lead frame or the interleafable sheet with the suction nozzle. The lead frame detecting unit conveys the lead frame to a predetermined position, and in the case of an inserted sheet, conveys and stores the empty lead frame case at the second separation position.

According to the third aspect of the present invention, since the suction / conveying section has a lead frame case detecting section for detecting a difference in reflection between the lead frame, the interleaf paper and the lead frame case, the lead frame, the interleaf paper and the lead frame case are detected. The difference in reflection enables detection of the lead frame case. Therefore, there is an excellent effect that the operation loss of the lead frame suction conveyance is small.

According to a fourth aspect of the present invention, the discharging portion has an empty case lowering portion for lowering the empty lead frame case, and a projecting portion for discharging the empty lead frame case lowered by the empty case lowering portion from the lowering position. Therefore, the lead frame case where the interleaving paper of the empty case lowering part is stored is
It descends by the operation of the descending part. When the lowering is confirmed, the lead frame case is ejected by the protruding portion, so that the ejection of the lead frame case is automated. Also, since the transport and discharge of the lead frame case are performed up and down, space can be saved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire lead frame supply device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a transport unit and a separation unit of the lead frame supply device according to the first embodiment.

FIG. 3 is a perspective view showing the entire positioning regulation unit and the suction conveyance unit of the lead frame supply device according to the first embodiment.

FIG. 4 is a perspective view showing a suction conveyance unit of the lead frame supply device according to the first embodiment.

FIG. 5 is a perspective view showing an empty case lowering portion of the lead frame supply device according to the first embodiment.

FIG. 6 is a perspective view illustrating a suction conveyance unit of a lead frame supply device according to a second embodiment of the present invention.

FIG. 7 is a perspective view showing the insertion of a lead sheet and a lead frame into a lead frame case.

FIG. 8 is a perspective view showing the entirety of a conventional lead frame supply device.

FIG. 9 is a perspective view showing a cassette unit of a conventional lead frame supply device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lead frame supply apparatus 2 Empty lead frame case 3 Conveyance part 13 Stopper 14 Lead frame case detection part 15 1st separation position 16 2nd separation position 18 Separation part 22 Guide positioning regulation part 26 Guide pin positioning regulation part 30 Suction Conveyance unit 40 Supply device 41 Empty case descending unit 44 Projection unit 45 Controller 48 Lead frame case detection unit 102 Lead frame case 103 Lead frame 104 Insert paper

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hisashi Shibata 1-1, Sachimachi, Takatsuki-shi, Osaka Matsushita Electronics Co., Ltd. (72) Inventor Yasukuni Sato 1-1, Sachimachi, Takatsuki-shi, Osaka Matsushita Electronics Inside the corporation

Claims (4)

[Claims] 1. A lead frame case in which a plurality of lead frames and an interleaf inserted between the lead frames are stored after an empty lead frame case,
A transport unit for transporting in the horizontal direction, a stopper provided at an end of the transport unit for stopping the lead frame case, and detecting the presence or absence of the lead frame case reaching the stopper to control the operation of the transport unit A lead frame case detecting section, a separating section for transferring the lead frame case beyond the stopper, and separating the lead frame cases into two separate positions one by one, and a lead frame case disposed parallel to the transfer direction of the lead frame case. A guide for regulating one side, a guide pin provided at a separation position of 2 for regulating one side in the transport direction of the lead frame case, and a guide positioning regulation for positioning and regulating the lead frame case separated at the separation position of 2 to the guide side. And the lead frame case separated at the separation position of (2) is positioned on the guide pin side. And the guide pin positioning setting portion that,
A suction conveyance unit for suction-conveying the lead frame in the lead frame case disposed at one of the two separation positions to a predetermined position, and adsorbing the insertion sheet to an empty lead frame case disposed on the other side; And a discharge section for discharging an empty lead frame case in which only the lead frame is stored. And a lead frame detecting section for detecting a difference between the conductivity of the lead frame in the lead frame case and the insulating property between the insertion sheet and the lead frame case. The lead frame supply device according to claim 1, further comprising: a presence / absence detection unit that detects presence / absence; and a suction nozzle that suctions the lead frame and the inserted sheet. 3. The lead frame supply device according to claim 2, wherein the suction conveyance section includes a suction lead frame case detection section that detects a difference in reflection between the lead frame, the interleaf sheet, and the lead frame case. 4. The discharge section has an empty case lowering section for lowering an empty lead frame case, and a projecting section for discharging the empty lead frame case lowered by the empty case lowering section from a lowering position. The lead frame supply device as described in the above.