JPS6349374B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention is a method for supplying tablets, which are the source of the resin that will become the sealing cover, to a press during packaging, which is the final process of manufacturing microelectronic circuits such as LSIs. The loader is connected to an existing mold press and preheater, and its purpose is to supply, preheat, and take out tablets.
An object of the present invention is to provide a tablet loader that dramatically improves work efficiency and economy by electrically and mechanically fully automating handling from conveyance to loading into a press.

The present invention consists of a chuck that picks up a tablet supplied horizontally from a tablet stocker and places it on the electrode of a preheater, and a chuck that receives the preheated tablet on the electrode and then contracts to remove the tablet from the preheater. The tablet loader comprises a movable arm that rotates 90 degrees to position the tablet on top of the die and then extends again to drop the tablet into the tablet hole of the top die. be. First, the overall structure of the present invention will be explained with reference to FIG. (not available). Reference numeral 2 denotes a chuck that opens and closes and moves up and down by the action of a cylinder, and is equipped with a pusher 5 that pushes the tablet 1 placed on the electrode 4 of the preheater 3. Reference numeral 6 denotes a movable arm that rotates 90 degrees under the action of a swing cylinder 7, has a rotation cylinder 8 at its tip, and extends and contracts under the action of a direct-acting cylinder 9. The rotating barrel 8 receives the tablet 1 at the most advanced position;
When the tablet is laid down on its side, its opening faces the tablet 1, but as it is moved backwards, it stands up. The bottom of the rotary cylinder 8 can be opened and closed, and when it is moved forward most above the die 10, it opens by being pushed by the operating rod 11, and the tablet 1 stored therein can be removed from the die 10.
drop it into the tablet hole. Next, the structure of the chuck 2 will be explained in detail with reference to FIGS. 2 to 4. Reference numeral 12 denotes a frame, and two guide posts 13 and 14 are installed between the top wall and the bottom wall of the frame. 15
is an elevating body passed between guide posts 13 and 14,
It is made vertically movable along the guide posts 13 and 14. 16 is an elevating cylinder for vertically moving the elevating body 15, and a connecting plate 1 is attached to the cylinder rod.
7 are joined together, and the tip of the coupling plate 17 is fixed to a cutout 15a provided on the bottom surface of the elevating body 15 with a bolt 18. Reference numerals 19 and 20 indicate opening/closing rods, which are pivotally connected to the cylinder rod of the opening/closing cylinder 22 via a shaft 21.
The other ends of the opening/closing rods 19, 20 are pivotally connected to chuck plates 23, 24 arranged side by side. Two extendable support rods 23a are arranged between the chuck plates 23 and 24. The opening/closing cylinder 22 is attached to the elevating body 1 by bolting via the connecting member 25.
It can be attached to 5. A sensor 26 detects the rise of the tablet 1. The mechanism for moving the chuck back and forth is shown in FIG. 2
7 is a direct-acting cylinder supported by a cylinder bracket 28, and its cylinder rod is fixed to a frame mounting plate 29 fixed to the frame 12. Reference numeral 30 denotes a guide bar for maintaining the movement of the chuck portion, which is inserted into a sliding tube 31 installed on the cylinder bracket 28, and its tip is fixed to the frame mounting plate 29. Next, the mechanism of the moving arm will be explained in detail with reference to FIGS. 1, 5 to 8.
Reference numeral 32 denotes a frame to which the rotating tube 8 is attached, and the opening side of the rotating tube 8 is pivoted with a bolt 33, and a curved hole 34 is provided in the side surface of the frame 32, and a bolt 35 is inserted into the rotating tube 8 from there. Screw in. The bolt 35 is positioned at the upper end of the curved hole 34 when the rotary tube 8 is in a sideways state, and is positioned at the lower end of the curved hole 34 when the rotary tube 8 is in an upright state. The bottom surface of the rotating tube 8 can be opened and closed, and the mechanism therefor is shown in FIGS. 7 and 8. Reference numeral 36 denotes a protrusion provided on the side wall of the rotating cylinder 8, to which a connecting plate 37 is pivotally attached. Operating plates 38 and 39 having U-shaped grooves 38a and 39a and oblong holes 38b and 39b are pivotally attached to both ends of the connecting plate 37, respectively. Reference numerals 40 and 41 are aperture plates, one end of which is inserted from the bottom side of each plate into the oblong holes 38b and 39.
protrusions 42 and 43 provided on the side wall of the rotating cylinder 8 through b.
It is pivoted with bolts 44 and 45 screwed into. In addition, locking pins 46 and 47 are provided protruding from the other ends of the aperture plates 40 and 41, respectively, and the locking pins 46 are connected to the U-shaped groove 3.
8a, and the locking pin 47 is engaged with the U-shaped groove 39a. In this configuration, when the actuating plate 39 is pressed as will be described later, the aperture plates 40 and 41 rotate about the bolts 44 and 45, respectively, thereby opening the bottom surface of the rotating cylinder 8. Reference numeral 48 denotes a guide wall that supports the bolt 35, and is provided with a sloped portion 48a that slopes in the direction of retreat of the rotary cylinder 8 (FIG. 6). 49 is a direct-acting cylinder that moves the rotating cylinder 8 back and forth, and its cylinder rod is fixed to the frame 32. 5
Guide bars 0 and 51 support the back and forth movement of the rotary cylinder 8, and are inserted into sliding cylinders 53 and 54 installed on the cylinder bracket 52, and their tips are fixed to the frame 32, respectively. The cylinder rod of the swing cylinder 7 is fixed to the upper surface of the cylinder bracket 52. Reference numeral 55 denotes a feeding section guide, on whose side wall there are formed sliding grooves for the bolts 33, 35 of the rotating cylinder 8, and on which the operating rod 11 is installed.

To explain an embodiment illustrating the operation of the present invention, when the shaft 21 of the opening/closing cylinder 22 is pushed forward as the cylinder rod advances, the opening/closing rods 19 and 20 move in the opening direction (see FIG. 2). (imaginary line), it acts to open the chuck plates 23 and 24 and becomes ready to accept a tablet. When the tablets 1 are pushed up from the tablet stocker to a fixed position in a horizontally stacked state, the sensor 26 of the chuck 2 reacts and issues a signal to operate the opening/closing cylinder 22. That is, when the cylinder rod is retracted, the opening/closing rods 19 and 20 return to the state shown in solid lines in FIG. 2, and the chuck plates 23 and 24 chuck the tablet 1 accordingly. Then the lifting cylinder 16 is activated,
The elevating body 15 is raised along the guide post via the coupling plate 17, thereby raising the chuck portion that chucks the tablet 1 (see the imaginary lines in FIGS. 3 and 4). Next, the direct-acting cylinder 27
When the chuck 2 is positioned above the electrode 4 due to the action of
The lifting cylinder 16 now operates to lower the chuck 2 and place the tablet 1 on the electrode 4. Then, the opening/closing cylinder 22 operates again to move the shaft 21 forward, opening the chuck plates 23 and 24 in the same manner as described above, thereby releasing the tablet 1 onto the electrode 4. Then, with the chuck plates 23 and 24 open, the tablet rises under the action of the lifting cylinder 16, then retreats to the original position under the action of the direct-acting cylinder 27, and descends again under the action of the lifting cylinder 16 to move to the next tablet. Wait for 1 to rise. When the chuck 2 moves forward in the above process, the preheated tablet already on the electrode 4 is pushed by the pusher 5 of the chuck 2 into the rotary cylinder 8 waiting at the end of the electrode 4. Being forced into something. Then, the rotating cylinder 8 is moved backward by the direct-acting cylinder 49, but when the bolt 35 of the rotating cylinder 8 reaches the slope 48a of the guide wall 48, the other bolt 33 is eccentrically moved toward the opening side. Therefore, a rotational force (weight) about the bolt 33 of the rotating tube 8 as a fulcrum is applied to the bolt 35, and the bolt 35 descends along the slope 48a to reach the lower end of the curved hole 34. As a result, the rotating cylinder 8 rotates about the bolt 33 and stands up (state 8' in FIG. 6). Then, it retreats to the position shown in FIG. 1, 8a. Thereupon, the swinging cylinder 7 is actuated to turn the movable arm 6 by 90 degrees, and after positioning it above the die 10, it is moved forward by the direct-acting cylinder 9.
It will be located above the tablet insertion hole. At this time, the actuating rod 11 fixed to the side wall of the input section guide 55 moves the actuating plate 3 as the rotary cylinder 8 moves forward.
9 and presses it. Then, connecting plate 3
7, the actuating plate 38 is pulled in the opposite direction (downward in the figure) to the actuating plate 39. The movable plate 39 is movable by the length of the oblong hole 39b, and as a result of the movement, the locking pin 47 engaged with the U-shaped groove 39a is also pushed upward in the figure.
Since the locking pin 47 is pivotally supported by the bolt 44, the locking pin 47 slides within the U-shaped groove 39a, and as a result, the diaphragm plate 41 rotates outward (FIG. 8).
The aperture plate 40 is also rotated outward in the same manner. In this way, a hole is formed through which the tablet 1 can pass, and the tablet 1 placed in the rotary cylinder 8 falls and is thrown into the tablet insertion hole. After that, when the moving arm 6 retreats due to the action of the direct-acting cylinder 9,
The actuating plates 38 and 39 are released from the action of the actuating rod 11 and return to their original positions (by springs or the like), closing the bottom of the rotating cylinder 8. Then, the swinging cylinder 7 is operated to turn the movable arm 6 by 90 degrees, and the rotating cylinder 8 is directed toward the electrode 4 again. Next, the rotary cylinder 8 moves forward in an upright state by the direct-acting cylinder 9, but when the bolt 35 comes into contact with the slope 48a of the guide wall 48, it is pushed up along the slope, and the rotary cylinder 8 falls sideways. Then, turn the opening toward the electrode 4 and wait for the next tablet 1 to be inserted. The tablet loader according to the present invention regularly repeats the above operations to continuously supply tablets to the die.

As described above, the present invention has a relatively simple structure and can be installed in conjunction with an existing mold press and preheater, thereby handling the tablets from supplying, preheating, taking out, conveying, and putting them into the press. It has the effect of dramatically improving work efficiency and economy through complete electrical and mechanical automation.

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram showing an outline of the present invention;
The figure is a plan view of the chuck part, Figure 3 is its side view,
FIG. 4 is a front view thereof, FIG. 5 is a plan view of the movable arm portion, FIG. 6 is a front view thereof, and FIGS. 7 and 8 are plan views showing the bottom opening/closing mechanism of the rotary cylinder. Explanation of symbols, 2...chuck, 3...preheater, 4...electrode, 5...pusher, 6...movable arm, 7...swing cylinder, 8...rotating cylinder, 9...direct motion Cylinder, 10...Die, 11
...Operating rod, 16... Lifting cylinder, 22...
Opening/closing cylinder, 27... Direct acting cylinder, 55
...Insertion section guide.

Claims (1)

[Claims] 1 A chuck that picks up the tablet that is supplied horizontally from the tablet stocker and places it on the electrode of the preheater, and after receiving the preheated tablet on the electrode, it shrinks and exits the preheater. and a movable arm that rotates 90 degrees to position itself above the die and then extends again to drop the tablet into the tablet hole of the upper die.