JPS6353933B2 - - 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.
The object of the present invention is to provide a tablet loader that completely automates the handling process from conveyance to loading into a press electrically and mechanically, thereby dramatically improving work efficiency and economy.

The first feature of the present invention is a mechanism that picks up the tablet from the tablet stocker and places it on the electrode of the preheater, and a mechanism that picks up the preheated tablet from the stocker and takes it out of the preheater, as well as a mechanism that picks up the tablet from the tablet stocker and places it on the electrode of the preheater.
It consists of a pick-up mechanism that rotates the tablet, a transporter that receives the tablet from the pick-up mechanism and transports it to the press, and a tablet charger that receives the tablet released from the transporter and drops it into the tablet hole of the top die. The second invention is a tablet loader, and the transporter in the first invention is omitted. First, to explain the first invention (Figs. 1 to 10), this invention is a method in which tablets are introduced from the front of the press body, and 1 in the figure stores a cylindrical tablet 2 to be conveyed. A tablet stocker 3 picks up the tablet 2 from the tablet stocker 1 and places it on the electrode 5 of the preheater 4; 6 picks up the preheated tablet 2; A pick-up mechanism rotates the tablet 2 by 90 degrees and takes it out of the preheater 4; 7 is a transporter that receives the tablet 2 from the pick-up mechanism 6 and transports it to the front of the press 8; 9 receives the tablet 2 released from the transporter 7; This is a tablet charger that drops this into the tablet hole of the top die. Next, the configuration of each part will be explained in detail. FIG. 2 shows an example of the configuration of the tablet stocker 1, in which 10 is a lifting motor, and a threaded rod 11
is rotated intermittently. Reference numeral 12 denotes an elevating plate with a lubricant pushbutton 13 fixed in the center, and an L-shaped stay 14 for pushing up the tablet 2 is attached to this. 15 is a guide rod inserted through the elevating plate 12, and 16 is a case for storing the tablet 2. Examples of the configuration of the gripping mechanism 3 are shown in FIGS. 3 to 5.
As shown in the figure. The gripping mechanism 3 consists of a chuck part and a transfer part. 17 is a chuck for gripping the doublet 2, and 18 is an LM ball (linear motion) connected to the chuck 17, which is connected to the cylinder rod of the cylinder 20 via a stay 19. 21 is a shaft along which the LM ball 18 moves up and down (Figure 3 shows the rising end). Reference numeral 22 denotes a base attached to the slider 23 and reinforced by a reinforcing plate 24, to which two or more chucks 17 are attached. Further, the cylinder 20 is placed on a reinforcing plate 24. A cylinder 25 is fixed to a fixed plate 26, and its cylinder rod is fixed to the slider 23. 27 is a bearing fixed to the fixed plate 26, into which the shaft 28 is slidably inserted. The front end of the shaft 28 is fixed to the slider 23, and the rear end is connected to a shaft fixing plate 29. A through hole 29a is bored in the shaft fixing plate 29 to allow the cylinder 25 to escape when moving forward. Next, the pick-up mechanism will be explained with reference to FIGS. 6 and 7. Reference numeral 30 is a chuck similar to the chuck 17 described above, and a claw 31 is provided on the gripping portion. The position at which the tablet 2 is chucked by the chuck 30 is eccentric as shown in FIG. A pinion 32 is integrated with the shaft of the chuck 30, and is meshed with a rotating rack 34 fixed to a coupling plate 33. 35 is a bearing that supports the shaft of the chuck 30;
It is fixed to a lifting plate 37 equipped with an LM ball 36. 38 is a lifting cylinder whose cylinder rod is fixed to the lifting plate 37. 39 is a guide rod installed on the cylinder bracket 40,
Insert into LM ball 36. A guide rod 41 is placed between the coupling plate 33 and the coupling plate 42, and is inserted into the LM ball 44 of the reversible motor 43 fixed portion. Reference numeral 45 is also a running rack installed between the coupling plates 33 and 42, and a pinion attached to the reversible motor 43 is meshed with this rack. 46
is a receiving plate, and the tablet 2 is placed on the tip thereof.
Figure 8 shows the transporter section, 47
Preferably, numeral 48 is a rail extending from the pick-up mechanism, and 48 is a reversible motor with variable speed. Reference numeral 49 denotes a motor holding bracket installed on the truck plates 50 and 51. 52 is a drive wheel attached to the rotating shaft of the reversible motor 48, and is attached to the side wall of the rail 47. 53 is a bearing shaft passed between the truck plates 50 and 51, and a bearing 54 that rotates along the upper surface of the rail 47 is arranged there. 55 is the truck plate 51
The cam follower is attached to the side wall of the rail 47 on the opposite side from the drive wheel 52. A cam follower 56 is installed on the truck plate 50 and attached to the lower surface of the rail 47. 57 is truck plate 5
A chuck holder is provided vertically at the chuck holder, and a chuck 58 similar to that in the above-mentioned gripping mechanism 3 or pick-up mechanism is attached to the lower part of the chuck holder. Finally, the tablet charger mechanism will be explained with reference to FIGS. 9 and 10. Reference numerals 59 and 60 denote guide shafts whose both ends are fixed by guide plates 60 and 61a. Guide shaft 5 between
Pass the bearing body 62 moving along the lines 9 and 60. A chuck 63 is fixed to the bearing body 62 and chucks a storage case 64 in which the tablet 2 is housed. 65 is a chain holder attached to the bearing body 62, and a pin 67 that is engaged with the chain 66 is provided therein. 68 is a reversible motor that drives the chain 66, and the guide shafts 59, 6
Fix it to the motor bracket located on the lower side of 0. 69 is a through hole communicating with the tablet insertion hole of the upper die. 70 is a tension shaft attached to the guide plate 61a, and 71 is a sprocket on which the chain 66 is routed. Figure 10 shows storage can 64.
This is a plan view showing the structure of the device, which has a three-layer structure on the bottom. The lower layer 64a is donut-shaped (dashed line),
The intermediate layer 64b has a donut shape and is provided with a fin-like projection having curved holes 72 at the top and bottom (solid line). Further, the upper layer 64c is a pair of eggplant-shaped bodies and is fixed to the intermediate layer 64b and the lower layer 64a at a fulcrum 73 (broken line).
A pin 74 that fits into the curved hole 72 is attached to the upper layer 64c. Reference numeral 75 denotes a pusher bolt provided on the guide plate 61a, which presses the fin-like protrusion of the intermediate layer 64b.

In the second invention, the transporter section in the first invention is omitted, and the tablet is directly transferred from the pick-up mechanism section to the tablet charger mechanism 9. In this case, the tablet charger mechanism 9 is rotated to the back side of the press 8 and supplies the tablet from the back side of the press 8.

To illustrate the operation of the present invention, a large number of tablets to be fed to the press are stacked in a tablet stocker 1 (in two rows in the illustrated embodiment). And the lifting motor 10
When operated, the threaded rod 11 rotates, the elevating plate 12 moves up one pitch via the female threaded bush 13, and the stay 14 integrated with it rises to push up the tablet 2. The uppermost tablets 2 pushed up from the two rows of tablet stockers 1 are chucked by chucks 17 juxtaposed in the gripping mechanism 3. When the chuck is completed, the cylinder 20 is activated to raise the chuck 17. Next, the cylinder 25 is actuated to advance the chuck 17 onto the electrode 5 of the preheater 4 via the slider 23, reinforcing plate 24, and base 22. Thereupon, the cylinder 20 is actuated to lower the chuck 17, and at the same time the tablet 2 is placed on the electrode 5, the chuck 17 is opened, leaving the tablet 2 there, and the chuck 17 is raised again by the action of the cylinder 20. Then, by the action of the cylinder 25, the chuck 17 retreats to its original position, and descends while remaining open, waiting for the next tablet 2 to rise. The tablet 2 preheated on the electrode 5 is carried onto the receiving plate 46 by the pick-up mechanism 6. That is, since the reversible motor 43 operates and the rack 45 meshes with the pinion fixed to its rotating shaft, the chuck 30 moves forward in an open state, and the lifting cylinder 38 operates at the forward end. descend. Then, the tablet 2 on the electrode 5 is ticked, but as described above, the ticking position is eccentric (FIG. 6). Next, the lifting cylinder 3
The chuck 30 is raised by the action of the pinion 32 which is integrated with the shaft of the chuck 30.
is engaged with the rotating rack 34, so it is rotated as it rises. Its rotation angle is 90
Set it so that it is the same. There, the tablet 2, which had been lying down until then, will be propped up. Then, the reversible motor 43 operates and transfers the chuck 30 to the receiving plate 4 via the rack 45.
Move back to 6. The receiving plate 46 fits between the claws 31 of the chuck 30, and when the chuck 30 opens, the tablet 2 falls onto the receiving plate 46. The chuck 30 then goes to pick up the other tablet on the electrode 5. Check 30 like this
Since the two tablets on the electrode 5 will be picked up, the moving distance is set to be alternately long and short. When the chuck 30 reaches the forward end, it descends, and at this time it is reversed 90 degrees by the action of the pinion 32 and the rack 34, and then chucks the tablet. The tablet 2 placed on the receiving plate 46 is
The chuck 58 of the transporter section grasps it.
Then, the reversible motor 48 is activated to transport the chuck 58 along the rail 47 and stop it on the storage bin 64 of the tablet charger section 9. The chuck 58 is then opened and the tablet 2 falls into the storage bin 64. The storage bin 64 waits until the other tablet 2 is sent in the same way, and when it is stored, the reversible motor 68 is activated to drive the chain 66. Along with this, the bearing body 62 moves along the guide shafts 59 and 60 via the pin 67 fixed to the chain 66, and the storage container 64 is brought above the through hole 69. At this time, the pusher bolt 75 presses the fin-like projection and rotates the intermediate layer 64b. Then, the pin 74 moves along the curved hole 72 and connects the upper layer 64c.
rotates outward around the fulcrum 73. the result,
A hole through which the tablet 2 can pass is formed in the bottom surface of the storage container 64, and the two tablets fall while being overlapped and are accommodated in the tablet hole of the upper die. The above process is repeated and tablets are sent to the die one after another.

In the second invention, the chuck 30 of the pick-up mechanism 6 is guided onto the storage container 64 of the tablet charger 9. Other functions are similar to those of the first invention.

The present invention is as described above, and by being directly installed in an existing mold press and preheater, tablets can be supplied, preheated, taken out, transported, and
This has the effect of dramatically improving work efficiency and economy by fully automating the handling process up to loading into the press, both electrically and mechanically.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the overall configuration of an embodiment of the present invention, FIG. 2 is a diagram showing the tablet lifting mechanism of the tablet stocker, FIG. 3 is a side view of the chuck portion of the gripping mechanism, and FIG. 4 is a diagram showing the tablet lifting mechanism of the tablet stocker. 5 is a plan view of the transfer section of the same mechanism, FIG. 6 is a plan view of the main parts of the pick-up mechanism, FIG. 7 is a side view thereof, and FIG. 8 is a front vertical sectional view of the transporter. FIG. 9 is a plan view of the tablet charger, FIG. 10 is a diagram showing the configuration of the storage container, and FIG. 11 is a diagram showing the overall configuration of the second invention. Explanation of symbols, 1...Tablet stocker, 3
...Gripping mechanism, 6...Pickup mechanism, 7...
Transporter, 9...tablet charger.

Claims (1)

[Claims] 1. A mechanism for chucking a tablet from a tablet stocker and placing it on the electrode of a preheater, and chucking the preheated tablet there to remove it from the preheater and rotating the tablet 90 degrees. It consists of a pick-up mechanism, a transporter that receives the tablet from the pick-up mechanism, chucks it, and transports it to the press, and a tablet charger that receives the tablet released from the transporter and drops it into the tablet hole of the top die. Tablet loader. 2. A mechanism that chucks the tablet from the tablet stocker and places it on the electrode of the preheater, chucks the preheated tablet there, takes it out of the preheater, rotates the tablet 90 degrees, and then transfers the tablet to the press. This tablet loader consists of a pick-up mechanism for transporting the tablet, and a tablet charger for receiving the tablet released from the pick-up mechanism and dropping it into the tablet hole of a top die.