JPH04206558A - Lead cutting and molding device - Google Patents

Abstract

PURPOSE:To contrive to shorten an arrangement time by a method wherein a multi-column lead frame, which has a plurality of pieces of electronic devices and is guided by a guide rail, is cut off each one piece during each intermittent stop operation of the pitch feeds of the lead frame, each lead frame is transferred to a lead molding device and is molded. CONSTITUTION:Works 16, which respectively have a resin-sealed package 14 formed on a multi-column lead frame 1, are fed to a work feeding device 22 of a lead cutting and molding device 20 every plurality. A pusher 23 and a pitch feed device 27 are made a step feed on a guide rail 25 at the interals between the lead frames and the lead frames are fed in order to a burr removal device 30, a dam cutting device 46 and a lead cutting device 62 and are processed. The lead frames subjected to cutting of leads 9 are sent out to an excluding shoot 78, DIP.IC parts finished as an intermediate product are sent to a lead molding device 80 by a transfer device 93, are subjected to lead molding work and thereafter, the DIP.IC parts are housed in a magazine of an excluding device 99 or the like as a finished product. Each device is incorporated in one chassis and an arrangement time between the devices due to a modification of specifications can be shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lead cutting and forming apparatus, and in particular, to a technique for shortening setup time. This invention relates to an effective method that can be used to separate the lead frame from the multiple lead frame and to form its outer leads.

[Prior Art] As a conventional lead cutting and forming apparatus of this kind, for example, as described in Japanese Patent Laid-Open No. 55-8351, there is a supply device for supplying multiple lead frames, and a supply device for supplying multiple lead frames. A guide rail for guiding, a feeding device for pitch-feeding the multi-lead frame, a cutting device for sequentially separating electronic devices from the multi-lead frame, and bending or molding of the outer leads of the separated electronic devices. Some equipment is installed independently.

[Problem to be solved by the invention]

However, in such a lead cutting and forming device, when the type or specification of the product to be cut and formed is changed, the work of attaching and detaching each unit and each unit after installation are necessary.
In particular, it is difficult to align the guide rails with the cutting device and the lead forming device, and a large amount of time is consumed in changing setups.

An object of the present invention is to provide a lead cutting and forming apparatus that can shorten setup time.

The above and other objects and novel features of the present invention will become apparent from the description of this specification and the accompanying drawings.

[Means for Solving the Problems] Representative inventions disclosed in this application will be summarized as follows.

That is, a supply device that supplies multiple lead frames in which a plurality of electronic devices are assembled one by one, a guide rail that guides the supplied multiple lead frames, and a multiple lead frame that is guided by the guide rail. A feeding device for pitch feeding, a cutting device disposed in the middle of the guide rail and interlocking with the pitch feeding to sequentially separate the electronic devices from the multiple lead frame, and an outer lead of the separated electronic device. It is equipped with a lead forming device that molds the lead forming device, a conveying device that transfers the electronic device from the cutting device to the lead forming device, and a discharging device that discharges the electronic device that has been formed into the lead, and these are built into the machine base. It is characterized by

[Effect]

In the above-described means, the multiple lead frames supplied from the supply device to the guide rail are pitch-fed by the feed device. During each intermittent stop operation of pitch feeding, the electronic device is separated one by one from the multiple lead frame by the cutting device.

Then, the separated electronic device is transported by a transport device to a lead forming device, where an outer lead is formed. Finally, the lead-molded electronic device is discharged to another location by a discharge device.

[Example] Fig. 1 is a partially omitted plan view showing a lead cutting and forming apparatus which is an embodiment of the present invention, Fig. 2 is a partially omitted front view thereof, and Fig. 3 is a diagram showing ■-■ in Fig. 2. 4 is a partially omitted plane showing the work; FIG. 5 is a perspective view showing the product;
Figures 6(a) and 7(b) are front sectional views showing the deburring device, Figures 7(a) and (b) are front sectional views showing the dam cutting device, and Figure 8(a), 9(b) is a front sectional view showing the lead cutting device, and FIGS. 9(a) and 9(a) are front sectional views showing the lead forming device.

In this embodiment, the lead cutting and forming apparatus according to the present invention includes a plurality of DIP-ICs (semiconductor integrated circuit devices equipped with dual in-line packages) as electronic devices assembled into a multiple lead frame. The DIP-IC part 19 as an intermediate product is sequentially separated one by one from the workpiece, and the outer lead 9b is bent into an I-reel shape.

Here, D is a completed product as a lead cutting and forming device.
As shown in FIG. 5, the IP-ICIOI includes a resin-sealed package 102 formed into a substantially rectangular flat shape using an insulating material such as epoxy resin using a transfer molding device. , resin sealed package 1
A plurality of outer leads 103 are arranged in a row and protrude from the side surfaces of the pair of long sides of 02, and are bent into an I-lead shape.

The workpiece 16 shown in FIG. 4 includes a multiple lead frame 1, and this multiple lead frame 1 is formed as follows. This multiple lead frame 1 is made of copper (
A material such as copper (copper or its alloy) or a ferrous (iron or its alloy) material is used, and is integrally formed by a suitable means such as punching press working or etching process.

In this multi-lead frame 1, a plurality of unit lead frames 2 are arranged in a row in the lateral direction.

However, only one unit is shown in the drawing. The unit lead frame 2 includes a pair of outer frames 3 each having a positioning hole 3a, and both outer frames 3 are arranged parallel to each other at a predetermined interval, so that the multiple lead frames 1 are arranged in a continuous direction. Each is extended in series. A pair of section frames 4 are arranged between adjacent unit lead frames 2.2 and both outer frames 3.2.
The three spaces are arranged parallel to each other and constructed integrally.
A unit lead frame 2 is constructed within a substantially rectangular frame formed by these outer frames and section frames. In each unit lead frame 2, tab suspension leads 7.7 are arranged perpendicularly to both outer frames 3 and 3 and integrally protrude, and between the tips of both tab suspension leads 7.7. A tab 8 formed in a substantially square flat plate shape is attached to the outer frame 3.
．． 3 and the section frame 4.4 are disposed approximately concentrically with the frame shapes of the section frame 4.4 and are integrally suspended. Furthermore, a pair of dam members 6 are disposed between both outer frames 3.3, extending in a right angle direction on both sides of the tab suspension lead 7, and are integrally constructed. 6, a plurality of beams 9 are arranged at equal intervals in the longitudinal direction, are parallel to each other, and integrally protrude perpendicular to the dam member 6. The inner end of each lead 9 is disposed such that its tip is close to the tab 8 and surrounds it, thereby forming an inner portion 9a. On the other hand, the outer extension portion of each lead 9 has its tip mechanically connected to the section frame 4, and constitutes an outer portion 9b. The portion between adjacent leads 9 and 9 in the dam member 6 substantially constitutes a dam 6a that blocks the flow of resin during pancake molding, which will be described later.

Multi-lead frame 1 configured and prepared in this way
In this step, the bullet 12 is bonded to each unit lead frame via the bonding layer 11, and then the wire 13 is bonded between the inner portion 9a and the bonding punt of the bullet 12. These bonding operations are sequentially performed for each unit lead frame 2 by pitch-feeding the multiple lead frame 1 in the lateral direction.

After that, on the bullet- and wire-bonded multiple lead frame 1, a package group 14 to be resin-sealed for each unit lead frame 2 is simultaneously molded for the unit lead frame group by transfer molding f (not shown). be done. At this time, the outer portion 9b of each lead 9,
A burr 15 is formed between the dam 9b and the dam 6a.

In this way, the workpiece 1 for the lead cutting and forming device is
6 has been prepared. Then, in the lead cutting and forming apparatus according to the present embodiment, this workpiece 16 is formed by cutting off the outer frame 3 and dam 6a for each unit lead frame in turn, and then bending the outer portion 9b of the lead 9 downward. That will happen.

In this embodiment, the lead cutting and forming apparatus 2o and the machine stand 21 are
A work supply device 22 is installed at the left end of the machine stand 21 (left and right, front and back are based on FIG. 1). The work supply device 22 is equipped with a bushing 23, and the bushing 23 transfers the workpiece I6 to the guide rail 24.
It is configured to be pushed out toward the center of the machine stand 21 along the lines.

A guide rail 25 is installed in the center of the machine stand 21 to guide the workpiece 16 from the left end to the right end. The guide rail 25 is formed into a rectangular flat plate shape, and a pair of mutually opposing guide grooves 26, 26 are formed along both long sides. The workpiece 16 is conveyed in the longitudinal direction along the guide rail 25 by having the outer edges of the outer frames 3.3 slidably fitted into the guide grooves 26.26 and held therein. . Guide rail 2
5 is disposed so as to be movable up and down with respect to the machine base 21, and is supported in a floating manner by a spring (not shown).

A pitch feeding device 27 for pitch-feeding the workpiece 16 is installed on the rear part of the guide rail 25 on the machine stand 21. This feeding device 27 uses a slider type rodless cylinder device or the like to feed the workpiece 16 in pitch. is configured to be fed from the left side to the right side at the same pitch as the unit lead frame 2.

Further, a deburring device 30 configured as shown in FIG.

As shown in FIG. 6, the deburring device 30 includes an upper mounting plate 31 and a lower mounting plate 40, and the upper mounting plate 31 is moved up and down by a cylinder device (not shown). , lower mounting plate 4 fixed on the machine base
0 configured to approach and move away from 0
Holders 32 and 41 are fixedly attached to both mounting plates 31 and 40, respectively, and upper holding mold 33 and lower holding mold 42 (
Hereinafter, they may be referred to as the upper mold 33 and the lower mold 42. ) are held aligned with each other. Upper mold 3
The upper mold 33 and the lower mold 42 are formed in substantially channel-shaped steel shapes that fit together, and the upper mold 33 and the lower mold 42 are used to press the root part of the lead 9 from above and below with the left and right holding parts 34 and 43. It is composed of

Further, the upper mold 33 is configured to be independently suspended by a guide 38 and a spring 39, similar to a work holder described later.

In the upper holder 31, a pair of punches 35 formed in a substantially comb tooth shape (not shown) are arranged on both left and right sides of the upper mold 33 and fixed vertically downward. The blade 36 is formed in a comb tooth shape corresponding to the pitch of the groups of leads 9, and is configured to punch out the resin burr 15 in cooperation with a burr removal blade described later.

A work holder 37 is slidably fitted into a guide 38 and supported in the upper holder 32 so as to be movable up and down, and the work holder 37 is independently suspended while being constantly urged downward by a spring 39. It is configured as follows. With this spring 39, the work holder 37 holds the sexy four frame 4 of the multiple lead frame l to the lower work holder 4.
5. It is designed to be pressed and held down between the two.

On the other hand, deburring blades 44 are arranged alternately with the holding parts 43 on the lower mold 42 and are formed in a shape that follows the lower surface of the lead 9, and the deburring blades 44 are similar to the deburring blade 3 of the punch 35.
6 to punch out the burr I5.

Furthermore, as shown in FIG. 7, the machine stand 21 is equipped with a dam cutting device 46 arranged downstream of the deburring device 30.

As shown in No. 713!11, the dam cutting device 4
6 is equipped with an upper mounting plate 47 and a lower mounting plate 48, and the upper mounting plate 47 is moved up and down by a cylinder device (not shown) to form a lower mounting plate fixed on the machine base. It is configured to approach and move away from 48. Holders 49 and 50 are fixedly attached to both number plates 47 and 48, respectively, and both holders 49 and 50 have an upper pressing die 5I and a lower pressing die 52 (hereinafter, an upper die 51 and a lower die 52). ) are held in alignment with each other. The upper mold 51 and the lower mold 52 are each formed into a substantially channel-shaped steel shape that fits into each other, and the upper mold 51 and the lower mold 52 hold the root portion of the lead 9 from above and below using pressing parts 53 and 54 on the left and right sides. It is configured to hold. Further, the upper mold 51 is configured to be independently suspended by a guide 58 and a spring 59, similar to a work holder to be described later.

The upper holder 49 has a pair of punches 55 formed in a substantially comb tooth shape (not shown), which are arranged on both left and right sides of the upper die 49 and fixed vertically downward.
The tabs 6 are formed in a comb tooth shape corresponding to the pitch of the groups of leads 9, and are configured to cut off the tab hanging leads 7 and the dam 6a in cooperation with shearing blades to be described later.

A work holder 57 is slidably fitted into a guide 58 and supported in the upper holder 49 so as to be movable up and down, and the work holder 57 is independently suspended while being constantly urged downward by a spring 59. It is configured as follows. With this spring 59, the work holder 57 holds the section frame 4 of the multiple lead frame 6 on the lower work holder 6.
It is designed to be held down by squeezing it between 0 and 0.

On the other hand, shearing blades 61 are arranged alternately with pressing parts 63 on the lower mold 52 and are formed in a shape that follows the lower surface of the lead 9, and the shearing blades 61 cooperate with the shearing blades 56 of the punch 55. It is formed so that the tab hanging lead 7 and the dam 6a are cut off.

Further, as shown in FIG. 8, the machine stand 21 is equipped with a lead cutting device 62 arranged downstream of the dam cutting device.

As shown in FIG. 8, the lead cutting device 62 includes an upper mounting plate 63 and a lower mounting plate 64, and the upper mounting plate 63 is moved up and down by a cylinder device (not shown). , lower mounting I fixed on the machine base
It is configured to approach and move away from fi64. Holders 65 and 6 are attached to the number plates 63 and 64.
6 are each fixedly attached, and both holders 6
5 and 66 respectively hold an upper press die 67 and a lower press die 68 (hereinafter sometimes referred to as the upper die 67 and the lower die 68) with their centers aligned with each other.

The upper mold 67 and the lower mold 68 are each formed into a substantially channel-shaped steel shape that fits into each other, and the upper mold 6
7 and the lower die 68 are configured to press the root portion of the lead 9 from above and below by means of left and right holding portions 69 and 70.

Further, the upper mold 67 is configured to be independently suspended by a guide and a spring, similar to a work holder described later.

A pair of punches 71 formed in a substantially comb tooth shape (not shown) are arranged in the upper holder 65 on the left and right 'fR sides of the upper die 67 so as to correspond to the pitch of the groups of leads 9, and are fixed vertically downward. A shearing blade 72 is disposed on the edge of the comb teeth in the punch 71 and is configured to cut the connection portion of the lead 9 with the section frame 4 in cooperation with a shearing force described later.

A work holder 73 is slidably fitted onto a guide 74 and supported on the upper holder 65 so as to be movable up and down, and the work holder 73 is independently suspended while being constantly urged downward by a spring 75. It is configured as follows. The spring 75 allows the workpiece holder 73 to press and hold the section frame 4 of the multiple lead frame 1 between it and the upper surface of a shearing die, which will be described later.

On the other hand, a pair of shearing dies 76 are disposed on the left and right sides of the lower die 68 and are formed in a shape that follows the lower surface of the lead 9. The shearing dies 76 have a shearing blade 77 that cooperates with the shearing blade 72 of the punch 71. It is formed so as to cut the connection portion of the lead 9 with the section frame 4.

Further, the machine stand 21 is equipped with lead forming devices 8o arranged on both sides of the lead cutting device.

As shown in FIG. 9, the lead forming device 80 includes an upper mounting plate 81 and a lower mounting plate 82, and the upper mounting plate 81 is moved up and down by a cylinder device (not shown). , holders 83 and 84 are fixedly attached to the 0-car mounting plates 81 and 82, respectively, which are configured to approach and move away from the lower mounting plate 82 fixedly installed on the machine base. , an upper holding die 85 and a lower holding die 86 are attached to both holders 83 and 84.
(Hereinafter, they may be referred to as the upper mold 85 and the lower mold 86.)
are held in alignment with each other. The upper mold 85 and the lower mold 86 are each formed into a substantially channel-shaped steel shape that fits into each other, and the upper mold 85 and the lower mold 86 hold the root portion of the lead 9 from above and below by means of left and right holding parts 87 and 88. It is configured to hold.

Further, the upper die 85 is configured to be independently suspended by a guide 89 and a spring 90.

In the upper holder 83, a pair of forming rolls 91 are disposed on the left and right sides of the upper die 85 and are suspended vertically downward. It is configured so that it can be bent vertically downward.

On the other hand, a pair of molding dies 92 are attached to the lower die 86 at the holding part 88.
They are disposed on both left and right sides of the lead outer portion 9b, and are formed in a shape that follows the lower surface of the lead outer portion 9b after molding.

Furthermore, a conveyance device 93 is mounted on the machine stand 21 and a lead cutting device 6 is connected to the lead cutting device 6.
This conveying device 93 conveys the intermediate product 17 cut off by the lead cutting device 62 from the lead cutting device 62 to the lead forming device 80. It is configured as follows. This conveyance device 93 is equipped with a conveyance bar 94, and this bar 94 is arranged so as to pass through the lead cutting device 62 and the lead forming device 80.
It is supported slidably in the front and back direction.

A first holding recess 95 is provided in the middle portion of the upper surface of the transport bar 94.
and a second holding recess 96 are arranged to face the position of the lead cutting device 62 and the position of the lead forming device 80, respectively, and are recessed so as to open upward. The intermediate product 17 is accommodated and held therein. The right brain of the conveyor bar in the machine stand 21 has the first
A cylinder device 97 and a second cylinder device 98 are arranged in front and behind each other. Both solida equipped! 97
．． 98 is connected to the transport bar 94;
is configured to reciprocate by the distance between the lead cutting device 62 and the lead forming device 80. Further, a discharge device 99 is installed on the left side of the front end of the transport bar 94, and although a detailed explanation will be omitted, the discharge device 99 vacuum sucks the product held in the second holding recess 96 of the transport bar 94. It is configured to be picked up by a head or the like and stored in a magazine or the like.

On the other hand, a discharge chute 78 is installed at the right end of the machine base 21 on an extension of the guide rail 25, and the discharge chute 78 discharges the remaining part 18 of the multiple lead frame from which the intermediate product has been cut out. It is configured as follows.

Next, the action will be explained.

As described above, the workpieces 16 in which the resin-sealed pancage 14 is molded onto the multi-lead frame l are stored in ranks or the like in batches and supplied to the workpiece supply device 22 of the lead cutting and molding device 20 .

The workpieces 16 supplied to the workpiece supply device F22 are sequentially delivered onto the guide rail 25 by the pusher 23, one by one from the rank, etc. The workpieces 16 delivered to the guide rail 25 are delivered in units by the pitch feeder 27. Lead frames 2.1 and 2 are fed one pitch at a distance between lead frames 2.2.

Then, the workpiece 1 is sent along the guide rail 25 on the sidewalk.
6 is a deburring device 30 for each unit lead frame 2;
It is sequentially supplied to the dam cutting device 46 and the lead cutting device 62.

First, the operation of the deburring device 30 will be explained.

As shown in FIG. 6(a), when the unit lead frame 2 is opposed to the lower die 42 by walking the workpiece 16, the upper mounting plate 31 is lowered by the cylinder device, and the upper die 33 and The work holder 37 is fitted to the lower die 42 and the lower holder 45 by the biasing force of the spring 39. As a result, the root part of the lead 9 is clamped and fixed between the presser part 34 of the upper die 33 and the presser part 43 of the lower die 42, and the sexigon frame is held between the upper and lower workpiece pressers 37 and 45. 4 is clamped and fixed.

In this state, the resin-sealed package I4 is fitted into the recessed portion of the lower mold 42, resulting in a cent state.

Moreover, when the workpiece 16 is lowered by the cylinder device,
The guide rail 25 holding the workpiece 16 is also lowered at the same time. When the workpiece 16 is lowered, the feed claw of the pitch feeder 27 is released from the workpiece 16, so that the pitch feeder 27 can perform a return operation independent of the workpiece 1G. This return operation causes the pitch feed device 27 to wait for the next pitch feed operation. The operation regarding this pitch feeding device 27 will be similarly executed in the dam cutting device 46 and the lead cutting device 62, which will be described later.

Thereafter, as shown in FIG. 6(b), as the upper mounting plate 31 is further lowered, the bunches 35 are gradually lowered. At this time, since the spring 39 of the upper mold 33 and the work holder 37 is compressed and deformed, the lower mold 4
2 and the lower work holder 45. punch 3
5, the resin burr 17 between the lead 9.9 and the dam 6a is punched out by the cooperation of the deburring blade 36 of the punch 35 and the deburring blade 46 of the lower die 42.

When the punch 35 completes a predetermined stroke, the punch 3
5 is lifted up by the upper mounting plate 31 and returned to its original standby state. Then, by the next feeding operation of the pitch feeding device 27, the deburred unit lead frame 2 is sent toward the dam cutting device 46.

Next, the operation of the dam cutting device 46 will be explained.

As shown in FIG. 7(a), when the unit lead frame 2 is opposed to the lower mold 52 by walking the workpiece 16, the upper mounting plate 47 is lowered by the cylinder device, and the upper mold 51 and The work holder 57 is fitted to the lower die 52 and the lower holder 60 by the biasing force of the spring 59. As a result, the root part of the lead 9 is clamped and fixed between the holding part 53 of the upper die 51 and the holding part 54 of the lower die 52, and the section frame is held between the upper and lower workpiece holders 57 and 60. 4 is clamped and fixed.

In this state, the resin-sealed package 14 is fitted into the recessed portion of the lower die 52.

As shown in FIG. 7(b), as the upper mounting plate 47 is further lowered, the punch 55 is gradually lowered. At this time, the upper die 51 and the work holder 57 are pressed against the lower die 52 and the lower work holder 60 because the spring 59 is compressed and deformed. As the punch 55 descends, the dam 6a is cut off by the cooperation of the shear blade 56 of the punch 55 and the shear blade 61 of the lower die 52.

When the punch 55 completes a predetermined stroke, the punch 5
5 is lifted up by the upper mounting plate 47 and returned to its original standby state. Then, by the next feeding operation of the pitch feeding device 27, the unit lead frame 2 whose dam has been cut off is sent toward the lead cutting device 62.

Next, the operation of the lead cutting device 62 will be explained.

As shown in FIG. 8(a), when the unit lead frame 2 is opposed to the lower mold 68 by walking the workpiece 16, the upper mounting plate 63 is lowered by the cylinder device, and the upper mold 67 and The work holder 73 is fitted onto the upper surfaces of the lower die 68 and the shearing die 76 by the biasing force of the spring 75.

As a result, the root part of the lead 9 is clamped and fixed between the holding part 69 of the upper die 67 and the holding part 70 of the lower die 68, and the root part of the lead 9 is held between the work holding part 73 and the upper surface of the shearing die 76. The section frame 4 is clamped and fixed. In this state, the resin-sealed package 1 is placed in the recess of the lower mold 68.
4 is in the set state where they are fitted.

Thereafter, as shown in FIG. 8(b), when the upper mounting plate 63 is further lowered, the punch 71 is gradually lowered. At this time, the upper die 67 and the work holder 73 are is compressed and deformed, the lower mold 6
8 and the upper surface of the shearing die 76. punch 71
, the shearing blade 72 of the punch 71 and the shearing die 7
By cooperation with the shearing blade 77 of 7, the connection portion of each lead 9 with the section frame 4 is cut.

When the punch 71 completes a predetermined stroke, the punch 7
1 is lifted up by the upper mounting plate 63 and returned to its original standby state. Then, by the next feeding operation of the pitch feeding device 27, the unit lead frame 2 whose leads 9 have been cut is sent out in the direction of the discharge chute 7.

When the lead cutting device 62 finishes cutting and the upper mounting plate 63 rises, the intermediate product D separated from the outer frame 3 and section frame 4 of the multiple lead frame 1 is cut off.
IP-ICClO2, lead forming device 8 from above the lower mold 68
0 onto the lower die 86 by the conveying device 93. That is, the DTP/rc portion 19 cut off by the lower die 68 of the lead cutting device 62 is transferred to the first holding recess 95 in the conveying bar 94 of the conveying device 93.

Then, by the operation of the first cylinder device 97, the transport bar 9
4 is moved in the front direction, the DIP-1c portion 19 held in the first holding recess 95 is transported to the position of the lead forming device 80.

When the DIP 10 part 19 is conveyed to the lead forming apparatus 80 by the conveying device 93, the workpiece I6 is conveyed by one pitch of the unit lead frame 2 by the pitch feed device 27, and the workpiece I6 is conveyed by the pitch of the unit lead frame 2 at the next stage. The cutting work will be carried out. Hereafter, each unit lead frame 2
The cutting work is repeated. After the cutting work for all unit lead frames 2 has been completed, the remaining outer frame portions 18 of the multiple lead frames 1 are discharged from the chute 7 days later, and are lowered from the guide rails 25 and collected at a predetermined location.

On the other hand, the DIP 10 section 19 supplied to the lead forming device 80 undergoes lead forming work by this device.

Here, the operation of the lead forming device 80 will be explained.

As shown in FIG. 9(a), when the DIP-1c section 19 is opposed to the recess of the lower mold 86 by the conveyor bar 94, the upper mounting plate 81 is lowered by the cylinder device, and the upper mold 85 is aligned with the lower die 86 by the biasing force of the spring 90. As a result, the root portion of the lead 9 is clamped and fixed between the pressing portion 87 of the upper mold 85 and the pressing portion 88 of the lower mold 86. In this state, the resin-sealed package 14 is fitted into the recessed portion of the lower mold 86, resulting in a set state.

Further, when the DIP-10 section 19 is lowered by the cylinder device, the transport bar 94 holding the DIP-rc section 19
will be lowered at the same time.

Then, when the transport bar 94 is lowered, the DIP 10 section 19 is released from being held by the first holding recess 95.

Thereafter, as shown in FIG. 9, etc., when the upper mounting plate 81 is further lowered by the cylinder device, the forming roll 91 is lowered. At this time, the upper die 85 is compressed and deformed by the spring 90. Therefore, it is pressed against the lower die 86. Furthermore, when the forming roll 91 is lowered relative to the forming die 92, the leads 9 are pressed against the forming die 92 as the forming roll 91 descends, and are bent to follow the forming die 92, resulting in a desired shape. molded into a shape. As a result, DIP-ICIOI (see FIG. 5) was manufactured as a completed product in this lead cutting and forming apparatus.

When the forming roll 91 completes its predetermined stroke, the forming roll 91 is raised and returned to its original standby state. Then, the molded DIP-IC is transferred to the second holding recess 96 in the transfer bar 94 of the transfer device 93, and is transferred to the ejection device 99 by the forward movement of the second cylinder device 98.

In the ejection device 99, the DIP/IC is accommodated in a magazine or the like.

According to the embodiment described above, the following effects can be obtained.

(1) A work supply device, a guide rail that guides the work, a feed device that pitches the work, a cutting device that separates the intermediate product from the work, a forming device that forms the intermediate product glue, and a cutting device. By incorporating a transport device that transports intermediate products from the molding device to the molding device and a discharge device that discharges the finished product into the machine base, setup time between each device can be shortened when the product type or specifications change. Therefore, productivity can be improved.

(2) By also incorporating a deburring device and a dam cutting device, production consistency can be further improved.

(3) By floatingly supporting the guide rail so that it can move up and down, the structure of the pitch feeding device can be simplified while ensuring reasonable connection between each device.

Although the invention made by the present inventor has been specifically explained above based on Examples, it goes without saying that the present invention is not limited to the Examples and can be modified in various ways without departing from the gist thereof. Nor.

For example, the deburring device and the dam cutting device can be omitted or incorporated into the cutting device.

In the above explanation, the invention made by the present inventor was mainly applied to the lead cutting and molding technology of DIP-IC, which is the background field of application. It can be applied to lead cutting and forming technology.

[Effects of the Invention] The effects obtained by typical inventions disclosed in this application will be briefly explained as follows.

A work supply device, a guide rail for guiding the work,
A feeding device that pitch-feeds the workpiece, a cutting device that separates the intermediate product from the workpiece, a forming device that forms the lead of the intermediate product, a conveying device that transports the intermediate product from the cutting device to the forming device, and a conveyance device that discharges the finished product. By incorporating the discharging device into the machine base, it is possible to shorten the setup time between each device when the type or specification of a product is changed, thereby improving productivity.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted plan view showing a lead cutting and forming device which is an embodiment of the present invention, Fig. 2 is a partially omitted front view thereof, and Fig. 3 is a side view taken along the line ■-■ in Fig. 2. 4 is a partially omitted plan view showing the workpiece, FIG. 5 is a perspective view showing the product, FIGS. 6(a) and (b) are front sectional views showing the deburring device, and FIG. 7 is a partially omitted plan view showing the workpiece. (a) and (b) are front sectional views showing the dam cutting device, Figures 8 (a) and 8) are front sectional views showing the lead cutting device, and Figure 9 (a) and (b) are the lead cutting devices. FIG. 3 is a front sectional view showing a molding device. DESCRIPTION OF SYMBOLS 1...Multiple lead frame, 2...Unit lead frame, 3...Outer frame, 4...Cefsilane frame, 6a...
・Dam, 7...Tab suspension lead, 8...Tab, 9・
...Lead, 9a...Inner part, 9b...Outer part, 11...Bonding layer, 12...Bellet, 1
3... Wire, 14... Resin sealed package, 15
...resin burr, 16...work, 17...DTP
・IC department (intermediate products), 1st... Balance department, 19th...
DIP-IC section, 20... Lead cutting and forming device, 21
...Machine base, 22...Work supply device, 23...Butcher, 24.25...Guide rail, 26...Guide groove, 27...Pitch feed device, 30...Deburring Device, 31.40--Mounting plate, 32.41--Holder, 33.42-- Holding die, 34.43-- Holding part, 35... Punch, 36.44... Burr Removing blade, 37.45... Work holding, 3 days... Guide, 39... Spring, 46... Dam cutting device, 4
7.48...Mounting plate, 49.50...Holder, 51
．． 52... Holding mold, 53.54-... Holding part, 5
5... Punch, 56.61... Shearing blade, 57.60
...Work holding, 5th...Guide, 59...Spring, 62...Lead cutting device, 63.64...
・Mounting plate, 65.66...Holder, 67.68...
Holding die, 69.70... Holding part, 71... Punch, 72.77... Cutting blade, 73... Work holding, 74... Guide, 75... Spring, 76...
- Shearing guide, 78... Discharge shade, 80... Lead forming device, 81.82... Mounting plate, 83.84...
・Holder, 85.86... Holder mold, 87.8 days...
・Holding part, 89... Guide, 9o... Spring, 91... Forming roll, 92... Forming guide, 93.
...Transport device, 94...Transport bar, 95.96...
Holding recess, 97.98... Cylinder device, 99...
Discharge device, 101・DIP-IC (product), 101-・
Resin-sealed pan cage, 103...outer lead. $6 Figure (O)9 □ (b)

Claims (1)

[Scope of Claims] 1. A supply device that supplies multiple lead frames in which a plurality of electronic devices are assembled one by one, a guide rail that guides the supplied multiple lead frames, and a guide rail that guides the supplied multiple lead frames. a feeding device that pitch-feeds the multiple lead frame, and a cutting device that is disposed midway along the guide rail and sequentially cuts off each of the electronic devices from the multiple lead frame in conjunction with the pitch feeding; It is equipped with a lead forming device that forms the outer leads of the separated electronic device, a conveying device that transports the electronic device from the cutting device to the lead forming device, and a discharging device that ejects the lead-formed electronic device. A lead cutting and forming device characterized by being built into the machine base. 2. Lead cutting and forming according to claim 1, characterized in that a deburring device and a dam cutting device are sequentially arranged from the upstream side at positions upstream of the cutting device in the guide rail. Device. 3. The lead cutting and forming apparatus according to claim 1, wherein the guide rail is floatingly supported so as to be movable up and down.