JPH0448694B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention is a device that picks up a plating object on one side, transfers it to the other side, and lowers it, particularly a transfer device suitable for transferring a strip-shaped plating object such as an IC lead frame from a transfer line onto a plating device. Regarding mounting equipment.

When plating IC lead frames and other strip-shaped plated objects, it is necessary to simultaneously plate multiple sheets of the plated objects in order to increase plating efficiency. The speed of plating processing is set according to the processing speed of the entire line such as loading, pre-processing, main plating processing, post-processing, and unloading. However, although several types of devices of this type have been proposed and put into practice, the processing speed of the entire line has been relatively slow. Therefore, the applicant arranges and places a plurality of strip-shaped plated items on a cart in advance, treats the cart as a simple device, and transports the plated items together with the cart, automatically handling a large number of plated items efficiently. He was the first to propose a device that could perform plating well
See No. 99127]. Although the proposed plating device has considerably improved processing speed compared to conventional plating devices, it has been difficult to further increase the processing speed because the plating material is transferred via a trolley. For this reason, it has been considered to use a group of feed rollers instead of a trolley, but unless a device is developed that picks up the plating material from the group of feed rollers on the line and transfers it onto the plating device efficiently and reliably, it will not work. It was found that even if the speed of the feed roller group or the plating device was increased, the intended processing speed could not be improved.
When an injection type plating device is used as the plating device, a pressure plate is placed above the sparger, and the plating object placed on the mask plate of the sparger is repeatedly lowered and raised, improving the plating processing speed. In order to do this, it is necessary to reduce the vertical movement distance of this press plate, and if it is reduced, the space between the mask plate and the press plate will become smaller, and the plating object picked up from the feed roller group will be masked within a correspondingly smaller space. There is a problem in that it becomes difficult to transfer onto the board.

This invention was made in view of the above-mentioned situation, and by guiding the chuck for holding a plating object using the vertical and horizontal cam surfaces and moving it in a small trajectory, it can hold a strip-shaped plating object. To provide a transfer device for a plated article which can pick up a plated article from a group of feed rollers, transfer it to a spargeer of a plating device which takes up only a small space above it in a short time, and lower it to a reliable position. In order to achieve the above object, the present invention also provides a plated material transfer device which is reduced in overall size, has a simplified structure, and exhibits smooth functions.

Specifically, the plating object transfer device according to the present invention is for simultaneously transferring a plurality of strip-shaped plating objects aligned in the left-right direction from one side to the other. Pressure cylinders are installed upward on both the left and right sides of the direction, and a base frame is suspended horizontally between both pressure cylinders via holders connected to each pressure cylinder, and the base frame is also installed horizontally on the left and right sides of the direction in which the plating material is transferred. By abutting and guiding the cam plates provided on both sides of the base frame with guides for forming both vertical and horizontal cam surfaces placed on both sides, the base frame can be moved horizontally by the pressure cylinder and by the guides and cam plates. The base frame is provided with a plurality of slide bars that can move up and down and can slide in the left and right directions, and each slide bar has a chuck with a recess for holding on the underside, and adjacent chucks are used for holding. By attaching multiple chucks in pairs on the left and right sides with their recesses facing each other, and sliding adjacent slide bars in opposite directions, multiple chuck pairs can be moved toward and away from each other in a horizontal state. By approaching and separating the chuck, a strip-shaped plated object can be freely supported and released from the holding recess of the chuck, and both ends of the plated object are pressed in a direction perpendicular to the direction of approach and separation of the chuck.・A pair of dampers for support is provided corresponding to each chuck, and one rotating bar is connected to each damper of the pair, and this rotating bar is linked to the vertical movement of the base frame. Each damper can be rotated and opened/closed according to the rotation.

The details of the present invention will be explained below with reference to the drawings showing one embodiment thereof.

First of all, this plating material transfer device consists of a pair of left and right pressure cylinders 1 and a horizontal base frame 2.
It is mainly composed of cam plates 3 provided on both sides of the base frame 2, a slide bar 4 also provided on the base frame 2, and a chuck 5 provided below the slide bar 4. A pair of pressure cylinders 1 are provided above the left and right sides (direction of arrow B) in the transfer direction (direction of arrow A) of the strip-shaped plated material 6.
They are provided facing each other, and in the illustrated example, a "slide cylinder" operated by pneumatic pressure is adopted. The pressure cylinder 1 employing this "slide cylinder" has a pair of left and right sides that can be expanded and contracted in the direction of arrow A. In the illustrated example, the left and right pressure cylinders 1 have the same shape and structure, so
In the following explanation, only one of them will be explained.

A holder 8 is fixed to the lower side of the movable part 7 of the pressure cylinder 1, and a pair of front and rear guide bars 9 are loosely inserted into the holder 8, and a stopper 10 provided at the upper end of the guide bar 9 regulates the stroke length. The guide bar 9 is movable up and down while being supported by the holder 8. A horizontal base frame 2 is attached to the lower end of the guide bar 9, and this base frame 2 is suspended between both pressure cylinders 1 via a holder 8 connected to the pressure cylinder 1. It is made to be able to move up and down, horizontally, and back and forth while being suspended via cam plates 3 previously provided on both sides. The cam plate 3 has a bifurcated shape with rollers 11a and 11b attached to its tips, and is supported by bearings 12 provided on the sides of the base frame 2. cam plate 3,
Specifically, the rollers 11a and 11b engage with guides 13 for forming vertical and horizontal cam surfaces arranged on both left and right sides (direction of arrow B) in the transfer direction (direction of arrow A) of the plated object 6. The guide 13 has vertical cam surfaces 14a, 14a, 14a, 14a, 14a, 14a, 14a, 14a, 14a, 14a, 14a, 14a, 14a, 14a, 14a, for vertical cam surfaces for up and down, on the front and rear of the guide 13.
4b and a horizontal cam surface 15 connected to both vertical cam surfaces 14a, 14b. Both vertical cam surfaces 14a and 14b restrict the lowering and raising of the base frame 2, and the horizontal cam surface 15 restricts the horizontal and longitudinal movement of the base frame 2.

As mentioned above, the base frame 2 is suspended from the movable part 7 of the pressure cylinder 1 through the guide bar 9 and the holder 8 on both the left and right sides, and is installed between the left and right sides, and is always maintained horizontally up and down. It is movable and moves back and forth, and has a generally rectangular shape as a whole, on which a plurality of slide bars 4 are provided so as to be slidable in the left and right directions (in the direction of arrow B) on a horizontal plane. In the example shown in FIG. 5, the slide bar 4 is divided into even-numbered columns and odd-numbered columns, with the even-numbered column slide bar 4a and the odd-numbered column slide bar 4b.
Pressure cylinders 16a and 16b are respectively provided to allow the connecting bar 1 to slide independently.
A plurality of slide bars 4a in even numbered columns and a plurality of slide bars 4b in odd numbered columns are connected to each other through 7a and 17b.
I try to slide them together at the same time. As for the sliding direction, in the left-right direction (direction of arrow B), sliding in the direction of moving away is "opening" between the chucks 5, which will be described later, and sliding in the direction of approaching is "closing".
It exhibits the following condition.

A chuck 5, which carries a plating object 6 by placing it in a recess 18 (to be described later), is mounted on the lower surface of the slide bars 4a, 4b from both left and right sides by sliding the slide bars 4a, 4b in a horizontal state. A plurality of them are installed so as to form a shape (see Figure 3). A pair of chucks 5a in the left and right direction,
5b has the shape shown in FIGS. 2 and 3 in the left-right direction (direction of arrow B), and recesses 18 for receiving both left and right sides of the plating object 6 are formed in the lower portions of each. The chuck 5 has a shape shown in FIG. 4 in the transfer direction (direction of arrow A), and a pair of chucks 5c and 5d at the front and rear each have a wide inverted U shape. In addition, a pair of front and rear chucks 5c,
The reason why 5d has such a wide inverted U-shape is to avoid interference with the feed roller 19 that conveys the plating material 6, and to avoid interference with the feed roller 19 that conveys the plated material 6, the chucks 5c and 5d
This is to enable the forming portion 20 of the recess 18 for receiving the plated object 6 to enter between the feed rollers 19 without resistance. The mounting position and number of chucks 5 in the left-right direction (direction of arrow B) are determined by the number of plated objects 6 that are sent in a plurality of alignments.
Specifically, as shown in FIG. 2, the feed roller 1
This corresponds to the position and number of the recesses 21 of No. 9, that is, the portions on which the strip-shaped plated objects 6 are placed.

In order to carry the strip-shaped plated object 6 between the left and right chucks 5a, 5b and between the front and rear chucks 5c, 5d in an accurately positioned state, dampers 22a, 22b, which regulate the front and rear of the plated object 6, are attached to the front and rear chucks. 5c and 5d are provided in combination. The front damper 22a is of a fixed type, and the rear damper 22b is of a rotary type. Both dampers 22a, 22
b is provided in combination with each of the plurality of chucks 5 in the left and right direction, and the plurality of rear dampers 2
2b, each rear damper 22
A rotating bar 23 fixed at the base end of the rotating bar 23, a kicker plate 24 and a kicker roll 25 attached to the side ends of the rotating bar 23, and a base frame 2 [specifically There are provided a protrusion 26 disposed at a position that interferes with the kicker roll 25 at the lowered position of the chuck 5], and a return spring 27 for returning the kicker plate 24 to rotation (see Figures 3 and 4). .

Next, the effect will be explained. For convenience of explanation, this plating object transfer device is placed on the primary side of the partial plating device 28 as shown in FIG. and the sparger 3 of the partial plating device 28
The case of transferring to 0 will be explained. In FIG. 1, reference numeral 31 denotes a plated object take-out device, which is disposed on the secondary side of the partial plating device 28 and transfers the partially plated object 6 onto a feed roller 33 provided at the input side of the post-processing device 32. Although this is to be taken out and transferred, the details are omitted because they are not directly related to this invention. Reference numeral 34 in FIG. 1 is a pressure plate disposed above the spargeer 30, which is lowered by a pressure cylinder 35 during the plating process and returned to the upper position when the plating process is completed. It is arranged so that it can move up and down between the two.

Now, when the strip-shaped plated objects 6 are pre-treated in the pre-processing device 29, each plated object 6 is placed on the concave portion 21 of the feed roller 19 on the exit side of the pre-processing device 29 in a state where the plurality of plated objects 6 are aligned. Therefore, the transfer device according to the present invention will be featured. Then, by receiving a drive signal from an electric control means (not shown), the pressure cylinder 1 is moved in the direction of arrow A.
In the direction of the pretreatment device 29 its movable part 7
is moved [backward movement], and the base frame 2 is also moved in the same way. At this time, cam plate 3
The two rollers 11a and 11b are engaged with the horizontal cam surface 15 of the guide 13, and the base frame 2 is moved (backwards) in a horizontal state. Since this horizontal cam surface 15 is connected to the vertical cam surface 14, one roller 11a of the two rollers 11a and 11b engages with the vertical cam surface 14a, resulting in a bifurcated shape. The cam plate 3 rotates, resulting in the entire base frame 2 being lowered. At this time, the chuck 5 has moved above the feed roller 19, and as the base frame 2 descends, the left and right, front and rear chucks 5a, 5b, 5c, and 5d are moved to positions where they do not interfere with the feed roller 19. The recess 18 at the tip faces the left and right side positions of the plated object 6. still,
At this time, the lower limit position of the base frame 2 and thus the chuck 5 is regulated by the stroke amount of the guide bar 9. Next, the pressure cylinder 16a, 1
6b is driven to move the slide bars 4a in even-numbered rows and the slide bars 4b in odd-numbered rows in a direction toward each other in the left-right direction (direction of arrow B) via the connecting bars 17a and 17b. A pair of left and right chucks 5a and 5b protruding from the lower surfaces of the slide bars 4a and 4b come close to each other and surround the plating object 6 from both the left and right sides and carry it in the recess 18 thereof. At this time, as the base frame 2 descends, the kicker roll 25 comes into contact with the protrusion 26, causing the kicker plate 24 to rotate against the return spring 27, and the plurality of rear dampers 22b are simultaneously activated via the rotation bar 23. Rotates, so to speak, all the rear dampers 22b are "open"
It is becoming. Next, when the pressure cylinder 1 moves its movable part 7 in the opposite direction, the base frame 2 also moves in the direction of arrow A (forward movement), but the roller 11a of the cam plate 3 moves to the vertical cam surface 14a. By engaging more with the horizontal cam surface 15, the base frame 2 rises once and then moves forward while remaining in a horizontal state. Therefore, a plurality of aligned objects 6 to be plated are simultaneously carried by each chuck 5 and taken up from the feed roller 19 in the aligned state. Then, as the base frame 2 rises, the return spring 27 causes the kicker plate 24 to return to rotation, and the plurality of rear dampers 22
b returned to rotation, and as a result, each plated object 6 was supported by chucks 5a, 5b, 5c, and 5d on both left and right sides, and the front damper 22a, which was fixed at the front and back, returned to rotation, resulting in a so-called "closed" state. Rear damper 22
The position will be accurately regulated at b. When the entire body moves forward in this state, the cam plate 3 will again move its roller 11b to the vertical cam surface 1.
4b, the entire base frame 2 is lowered while rotating. The lower limit position at this time is regulated by the stroke amount of the guide bar 9 as before. The vertical cam surface 14b of the mechanical and fixed guide 13 allows the lowered position of the base frame 2 to correspond to the upper position of the spargeer 30 of the partial plating device 28 in an accurate positioning state with almost no "shake". At this position, the pressure cylinders 16a and 16b are operated again to slide the even and odd rows of slide bars 4a and 4b in the left and right direction and in the direction of opening the pair of left and right chucks 5a and 5b, thereby aligning the plurality of plated objects 6. It is lowered onto the upper surface of the spargeer 30 in its original state. Then, in order to repeat the above operation again, the base frame 2 moves toward the pretreatment device 29, and at the same time, the pressure plate 34 is lowered by the pressure cylinder 35, and a plurality of aligned plating objects 6 are moved onto the upper surface of the sparger 30. This is to prepare for the partial injection plating process. Then, before the base frame 2 moves again to the position above the spargeer 30, the press plate 30 returns and rises, the take-out device 31 simultaneously takes out each plating object 6, and the post-processing device 32 moves onto the feed roller 33. This is what will be carried out.

In such an action, the base frame 2 can descend, rise, and level extremely smoothly due to the presence of the cam surface formed by the guide 13 and the cam plate 3 with rollers 11a and 11b engaged with this cam surface.・It involves repeated back and forth movements.

The device for transferring prickly materials according to the present invention is as described above, and uses a pressure cylinder to realize rapid back and forth movement of the base frame, and a combination of a guide and a cam plate to move the base frame. By moving up and down,
Directly utilizes the back and forth movement of the base frame itself,
With a small trajectory, there is no wasted movement, and vertical movement is possible even in a restricted space.The vertical cam surface of the guide mechanically and fixedly determines the vertical position, allowing vertical movement with extremely accurate positioning. The chuck is attached to a slide bar, and the chucks approach each other in a horizontal position by sliding the slide bar against each other, and the object to be plated is placed on the holding recess and carried, thereby preventing slight deformation or damage. Achieving the transfer of unloaded items without giving away
Furthermore, a damper is used to position the plated object carried by the chuck in the front and back to ensure accurate positioning.
This has the effect that strip-shaped plated items such as IC lead frames can be efficiently transferred in optimal conditions for the plating process. By adjusting the selection of even and odd rows of slide bars provided on the base frame and changing the combination of left and right chucks, it is expected that it will be possible to hold plating objects of different widths.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the state in which the plating material transfer device is installed in front of the partial plating device, and Fig.
Fig. 3 is a side view of the chuck as seen from the direction of the arrow in Fig. 1, and Fig. 4 is a side view of the plating device as seen from the direction of the arrow in Fig. 3. A side view of the chuck as seen, and FIG. 5 is a partial plan view showing the base frame, slide bar, etc. 1...Pressure cylinder, 2...Base frame, 3...Cam plate, 4...Slide bar,
5...Chick, 6...Plated item, A...Transfer direction, B...Left and right direction, 8...Holder, 9...Guide bar, 11a, 11b...Roller, 13...
Guides, 14a, 14b... Vertical cam surface, 15...
... horizontal cam surface, 19 ... feed roller, 28 ... partial plating device, 29 ... pre-treatment device, 30 ... spargeer, 32 ... post-treatment device, 34 ... press plate.

Claims (1)

[Scope of Claims] 1. A plating object transfer device for simultaneously transferring a plurality of strip-shaped plating objects aligned in the left-right direction from one side to the other, the plating object being transferred on both left and right sides in the transfer direction of the plating object. A pressure cylinder was installed above each, and a base frame was suspended horizontally between the two pressure cylinders via holders connected to each pressure cylinder, and the base frame was also placed on both the left and right sides in the direction of transferring the plating material. By abutting and guiding cam plates provided on both sides of the base frame with guides for forming both vertical and horizontal cam surfaces, the base frame can be moved horizontally back and forth by the pressure cylinder and vertically by the guide and cam plate. The base frame is provided with a plurality of slide bars that can freely slide in the left and right direction, and each of the slide bars has a chuck with a recess for supporting on the underside of the chuck, and adjacent chucks each have a recess for supporting. By attaching multiple pairs of chucks facing each other in pairs on the left and right sides, and sliding the adjacent slide bars in opposite directions, the multiple pairs of chucks are made to approach and separate from each other in a horizontal state. To enable a strip-shaped plated object to be freely supported and released from the holding recess of the chuck when approaching and leaving the chuck, and to press and support both ends of the plated object in a direction perpendicular to the direction of approach and separation of the chuck. A pair of dampers are provided corresponding to each chuck, and one rotary bar is connected to each damper of the pair, and this rotary bar rotates in conjunction with the vertical movement of the base frame. A transfer device for plating materials, characterized in that each damper can be rotated and opened/closed according to the conditions.