JP3471660B2 - Product processing and removal mechanism - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive mechanism for performing a plurality of operations such as product processing and take-out work with one drive motor, and in particular, one drive motor performs product work, moving work and take-out work. those related to the processing and drive Organization products.

[0002]

2. Description of the Related Art Generally, in a conventional product processing and take-out mechanism, an actuator for processing a product, an actuator for carrying a product, and an actuator for taking out a product are separately operated.

[0003]

However, the conventional product processing and take-out mechanism as described above has the following problems. First, since the product transport mechanism, the product processing mechanism, and the product takeout mechanism are operated by independent actuators (drive sources), they are driven asynchronously. So, in order to synchronize, we used a sensor to control the movement of the actuator.
There was a drawback that the machine index did not go up.

Further, those disclosed in JP-A-6-171813 is a conveying device for conveying the plate-like member or without the island portion smoothly. Also,
It is possible to carry and change the width of the plate-shaped member with one motor. However, as in the present invention, one drive source cannot perform the three operations of vertical movement of the product transport rail, vertical drive of the product processing unit, and vertical drive for taking out the product.

Japanese Unexamined Patent Publication No. 9-307044 discloses a carrying unit which carries out a servomotor for carrying a thin plate such as a lead frame in order to reduce vibration during vertical movement by an air cylinder. Therefore, one drive source cannot perform three operations as in the present invention.

The electric press device disclosed in Japanese Unexamined Patent Publication No. 10-166073 is capable of reducing the impact force applied to the lead frame and the like and freely changing the feed pitch. Therefore, one drive source cannot perform three operations as in the present invention.

The transport mechanism of the press device disclosed in Japanese Unexamined Patent Publication No. 10-286699 realizes mass production and high speed by miniaturizing the device and shortening the machine cycle. For this reason, the work carry-in means and the work carry-out means are arranged in the apparatus main body so as to overlap each other, and can be rotated by separate drive sources. Therefore, unlike the present invention, one drive source does not perform three operations.

[0008] JP-A 11-019740 Patent electric press apparatus disclosed in Japanese, as well as to shorten the index time required for the feed operation and the press-working of the lead frame, adjustment of the feed stroke when replacing a type of lead frame Can be done easily. Therefore,
Unlike the present invention, one drive source does not perform three operations.

The object of the present invention is to remedy the above-mentioned drawbacks of the prior art and to convey, process, and process products by a single drive source.
It is to provide a processing and take-out mechanism of a product that can be taken out.

[0010]

In order to achieve the above-mentioned object, the present invention adopts the following basic technical constitution. That is, as a first aspect of the present invention, a drive source, a first cam member fixed to a first drive shaft that is rotationally driven by the drive source, the first drive shaft and the second drive member. Clutch for ON-OFF transmission of power to and from the drive shaft, a second cam member fixed to the second drive shaft, and a third cam member fixed to the second drive shaft. And a conveyance rail that is vertically moved by the first cam member, a product take-out member that is driven by the second cam member, and a product processing member that is driven by the third cam member. It is what

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION In order to solve the problems in the prior art as described above, the product processing and take-out mechanism of the present invention conveys and processes the product via a cam member by a single drive source. Since each work of taking out is performed, the machine index can be improved.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION A specific structure of a product processing and take-out mechanism according to the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram showing a product processing and take-out mechanism according to an embodiment of the present invention. Here, the product processing and take-out mechanism 10 includes a drive source 11, a first cam member 13 fixed to a first drive shaft 12 rotationally driven by the drive source 11, and the first drive shaft. 12 for turning power transmission between the second drive shaft 14 and the second drive shaft 14, a second cam member 16 fixed to the second drive shaft 14, and the second drive shaft 14 A third cam member 17 fixed to the above, a transport rail 18 vertically moved by the first cam member 13, a product take-out member 19 driven by the second cam member 16, and the third cam member. And a product processing member 20 driven by 17.

A transport pin 21 is arranged on the transport rail 18 and transports a product in conjunction with the transport rail 18. The transport pin 21 transports the product on the rail 18 for each pitch. The transport rail 18 moves up and down by the first cam member 13 fixed to the first drive shaft 12 and the connecting rod 22.

The clutch 15 connecting the first drive shaft 12 and the second drive shaft 14 is controlled by a control mechanism (not shown). The product take-out member 19 moves up and down by the second cam member 16 fixed to the second drive shaft 14 and the connecting rod 23. The product processing member 20 is also connected to the third cam member 17 and the connecting rod 2 which are fixed to the second drive shaft 14.
Move up and down by 4.

The drive source 11 may be a motor or the like. Further, the product take-out member 19 is provided with a suction nozzle or the like to suck the lead frame or the like. Further, the product processing member 20 can be applied to a pressing device or the like. The clutch 15 may be an electromagnetic clutch or the like.

Next, the operation of the product processing and take-out mechanism constructed as described above will be described with reference to an example of a lead frame of a semiconductor manufacturing post-process apparatus. It is a device that processes the leads of the product flowing as a lead frame into a predetermined shape, and finally separates the leads from the lead frame and stores them in a tray. First, the lead frame is transported on the transport rail 18. Specifically, the first cam member 13 is used to convey the transport rail 1.
Lower 8 While the transport rail 18 is descending,
The transport pin 21 returns to the origin, and when the return is completed, the transport rail 18 rises and the one-pitch feed is completed.

When the lead frame conveyed one pitch at a time comes to the processing section, the products for three pitches are processed at the same time. In order to process a product, first, the transport rail 18 is lowered, and then the suction nozzle of the product takeout member 19 for holding the product and taking out the product is lowered. afterwards,
The product processing member 20 descends to process the lead frame and separate the lead frame and the product. Further, during this time, the transport pin 21 returns to the origin.

Next, the suction nozzle for taking out the product, the product processing member 20, and the carrying rail 18 are sequentially raised, and the operation of one cycle is completed. For example, when the lead frame is conveyed by one pitch and three products are processed at the same time, it is necessary to carry out the lead frame conveyance and the conveyance rail 18 up and down twice, and simultaneously perform the product machining and the product removal at the third time. There is.

Therefore, by providing the clutch 15 between the first cam member 13, the second cam member 16 and the third cam member 17, the three conveying rails 18 can be machined simultaneously. Further, in order to obtain the operation synchronization, each of the first cam member 13, the second cam member 16, and the third cam member 17 are arranged on one axis of one drive source 11, and each is arranged at a cam timing. It controls the movement of the unit.

FIG. 2 is a timing chart of each cam member of the processing and taking-out mechanism of the same product. First, the transport rail 18 is lowered by the first cam member 13, for example, at a speed of 46.6 mm / sec in this embodiment.
The first cam member 13 maintains the state where the transport rail 18 is lowered by 6 mm from 6π / 14 to 24π / 14.

Further, the second cam member 16 is 0 to 6π.
The product take-out member 19 at 194 mm / se
Lower at the speed of c. During this period, the product take-out member 1
9 descends 25 mm. Further, when the second cam member 16 is between 6π / 14 and 11π / 14, 46.6 mm /
It descends at a speed of sec. During this time, the product take-out member 19 is lowered by 30 mm. The second cam member 16 is 1
Between 1π / 14 and 16π / 14, the state of being lowered by 30 mm is maintained. Next, the second cam member 16
It starts rising at π / 14 and returns to its original position at 23π / 14.

On the other hand, the third cam member 17 is 6π / 14.
Then, the descent of the product processing member 20 is started at a speed of 70 mm / sec. 9 product processing members 20 by 12π / 14
It is lowered by mm, and this state is maintained until 22π / 14. Furthermore, it starts to rise from 22π / 14 to 26π / 1
Return to the original position with 4.

As described above, according to the product processing and take-out mechanism of the present invention, a plurality of mechanisms can be driven by one drive source and the machine index can be increased.

[0024]

As described in detail above, the product processing and take-out mechanism of the present invention includes a drive source and a first cam member fixed to a first drive shaft which is rotationally driven by the drive source. A clutch for ON-OFF transmission of power between the first drive shaft and the second drive shaft; a second cam member fixed to the second drive shaft; and a second cam member fixed to the second drive shaft. A third cam member fixed to the drive shaft, a transport rail vertically moved by the first cam member, a product take-out member driven by the second cam member, and a third cam member driven by the third cam member. It is possible to drive three mechanisms with one drive source because it has a product processing member
became.

Further, the machine index can be improved without requiring a sensor or the like. The reason is 3
This is because it is easy to synchronize the two elements.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a product processing and take-out mechanism according to an embodiment of the present invention.

FIG. 2 is a timing chart of each cam member of the processing and taking-out mechanism of the same product.

[Explanation of symbols]

10 Product processing and take-out mechanism 11 Drive source 12 First drive shaft 13 First cam member 14 Second drive shaft 15 clutch 16 Second cam member 17 Third cam member 18 Conveyor rail 19 Product take-out member 20 Product processing parts 21 Transport pin 22 Connecting rod 23 Connecting rod 24 Connecting rod

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B30B 13/00 B21D 43/02

Claims (6)

(57) [Claims] 1. A drive source, a first cam member fixed to a first drive shaft that is rotationally driven by the drive source, and power between the first drive shaft and the second drive shaft. Transmission of ON
The clutch is turned off, the second cam member fixed to the second drive shaft, the third cam member fixed to the second drive shaft, and the first cam member are moved up and down. A product processing and removing mechanism, comprising: a transport rail; a product removing member driven by the second cam member; and a product processing member driven by the third cam member. 2. The mechanism for processing and taking out a product according to claim 1, wherein the transport rail transports the product in conjunction with a transport pin. 3. The product processing and take-out mechanism according to claim 1, wherein the drive source is a motor. 4. The product processing and take-out mechanism according to claim 1, wherein the product take-out member includes a suction nozzle. 5. The product processing and take-out mechanism according to claim 1, wherein the product processing member is a pressing device. 6. The product processing and take-out mechanism according to claim 1, wherein the clutch is an electromagnetic clutch.