JPH03216419A - Conveying storing device for article - Google Patents

Abstract

PURPOSE:To improve the working efficiency by providing a first conveying means to intermittently convey articles, a grasping mechanism mounted on the article take-out side, a second conveying means to perform longitudinal reciprocating operation of the grasping mechanism, a third conveying means, and a support rail. CONSTITUTION:Articles intermittently conveyed by a conveyor 3 (first conveying means) are grasped by a clamp mechanism 74 (75) (grasping mechanism) of a second conveying means 60, and are moved upward in this state by means of an air cylinder 67 (third conveying means). The article grasped by the clamp mechanism 74 (75) is conveyed to a position above a third conveying means 80 by means of an air cylinder serving as a longitudinal moving mechanism. Further, when the article is released from grasp by the clamping mechanism 74 (75) and delivered to the third conveying means 80, the article is conveyed to the storing means 95 side by means of the third conveying means 80 and the article is stored, in order, on the support rail of the storing means 95.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an article conveyance and storage device that is applied to a circuit board coating device that forms a resin film such as silicone on the surface of a circuit board such as a hybrid IC. It is related to.

[Conventional technology]

Conventionally, as a circuit board coating apparatus, the inventors of the present application have provided a holding means for holding a circuit board, a first vibration imparting means for vibrating the circuit board held by the holding means, and a holding means for storing a resin liquid. a resin tank disposed below the resin tank; a drive unit that moves the holding unit and the resin tank toward and away from each other in order to immerse the circuit board held by the holding unit in the resin in the resin tank; and a drive unit that vibrates the resin tank. The present invention proposes a coating apparatus that includes a second vibration imparting means for causing vibration, a conveying means for conveying a circuit board coated with resin, and a drying means for drying the circuit board.

[Problem to be solved by the invention]

However, in the above-mentioned coating apparatus, the space for storing the circuit Go board that has been transported while being dried by the drying means together with the jig plate is installed at the end of the conveyor constituting the transport means. If the pieces were sent out one by one, a worker would have to move each piece to a different location, creating a problem with automation. Immediately after the circuit board is dried, the resin is not completely dried, and therefore, it is not preferable to store a large number of products delivered from the conveyor in a storage case as it is because the products will be damaged.

An object of the present invention is to be able to store items in an orderly manner without significantly increasing the installation space in the horizontal direction and without damaging the items sent from the conveyance means, and to enable automation of the work. An object of the present invention is to provide an article transport and storage device that can improve efficiency.

[Means to solve the problem]

This invention includes a first conveyance means for conveying articles intermittently;
a gripping mechanism installed on the article take-out side of the first conveyance means for gripping the article conveyed from the conveyance means; an elevating mechanism for raising and lowering the gripping mechanism; and a reciprocating movement of the gripping mechanism in the front-rear direction. and a second conveying means, which is arranged above the first conveying means, and receives the article gripped by the gripping mechanism of the second conveying means, and carries it opposite to the second conveying means. It is composed of a third conveyance means configured to convey the articles to the side, and a storage means provided with a support rail for storing the articles conveyed from the third conveyance means.

[For production]

In this invention, the article intermittently transported by the first transport means is gripped by the gripping mechanism of the second transport means,
In this state, it is moved upward by the lifting mechanism. Next, the article gripped by the gripping mechanism is transported above the third transport means by the back and forth movement mechanism. Furthermore, when the grip of the gripping mechanism is released and the article is transferred to the third conveyance means, the article is conveyed to the storage means side by the third conveyance means and is sequentially stored on the support rail of the storage means.

〔Example〕

Hereinafter, an embodiment in which the present invention is embodied in a circuit board coating apparatus will be described with reference to the drawings.

As shown in FIG. 1, the coating device of this embodiment includes a deposition device 1 for depositing silicone resin on a hybrid IC 55 which is a circuit board, a heater 2 for drying the deposited resin, and a heater 2 for drying the deposited resin. A conveyor 3 serving as a first conveying means for conveying the supplied hybrid IC 55 from the deposition device l to the heater 2 side;
A second conveying means 60 for conveying to the left in the figure, a third conveying means 80 for conveying the hybrid IC 55 received from the second conveying means 60 to the left in the figure, and further the third conveying means It is comprised of storage means 95 for storing a large number of hybrid ICs 55 sent from the means in parallel.

First, the deposition apparatus 1 will be explained with reference to FIGS. 4 to 7.

As shown in FIGS. 4 and 5, a resin tank 5 is installed on a base 4 serving as a vibration imparting means of the deposition apparatus 1, and silicone resin is stored in the resin tank 5. A vibrator is installed inside the base 4 so that the resin tank 5 can be vibrated.

A frame 6 is installed behind the base 4, and a cylinder 7 as a driving means is provided on the upper part of the frame 6, and a rod 7a of the cylinder 7 is directed downward.

A head slider 9 is fixed to the rod 7a of the cylinder 7, and the head slider 9 is guided in the vertical direction along a pair of guide rails 8. A motor l is mounted on the lower surface of the head slider 9 as a vibration imparting means.
A support plate 10 that supports 3 is fixed. Further, a diaphragm l2 is supported by a pair of diaphragm shafts 11 provided on the head slider 9 so as to be movable up and down, and an eccentric shaft 14 is rotatably driven by the output shaft of the motor 13 on the diaphragm l2. is rotatably supported. The diaphragm l2 is guided by the diaphragm shaft 11 and vibrates in the vertical direction as the eccentric shaft 414 rotates.

An offset plate 15 as a holding means is fixed to the lower side of the diaphragm 12, and knock pins 15 are provided on the left and right sides of the front surface of the plate 15 for positioning a jig plate 16 as an article to which the hybrid IC 55 is fixed.
a are provided respectively. A fixed lever 17 is rotatably supported on the front surface of the offset plate 15 by a shaft l8, and an operating rod l9 rotatably connected to the upper end of the lever l7 is moved left and right by a pair of guide members 20. is slidably supported. A compression spring 21 is interposed between the flange 19a formed on the operating rod 19 and one guide member 20, and the spring 21 always moves the operating rod 19 in a specific direction (to the right in FIG. 4). By biasing the fixed lever l7 to an upright position, the lower end thereof is brought into contact with the stopper 22.

The hybrid IC 55 of the jig plate 16 fixed to the offset plate 15 by the lower end of the fixed lever I7 is placed above the resin tank 5 as shown in FIG. 7 when the rod 7a of the cylinder 7 is in the closed state. When the rod 7a of the cylinder 7 is in the protruding state, the rod 7a of the cylinder 7 is immersed in the silicone resin in the resin bath 5 up to a predetermined portion, as shown in FIG. Furthermore, when the hybrid IC 55 is in the upper position, one end of the operating rod l9 is connected to the cylinder 23 supported by a support member (not shown).
The rod 23a faces the rod 23a. and,
When the rod 23a of the cylinder 23 protrudes, the operating rod 19 moves to the left against the biasing force of the compression spring 21, tilting the fixed lever 17, and allowing the jig plate 16 to move forward. It has become.

As shown in FIGS. 5 and 6, a pair of guide rails 24 extending left and right are supported by the frame 6 behind the resin tank 5, and a squeegee slider 25 is mounted on the guide rails 24 to move in the left and right directions. It is set up so that it can be done. The squeegee slider 25 is connected to a chain 27 that moves left and right through a pair of sprockets 26.
It is reciprocated in the left and right direction by a motor 28 that repeatedly rotates.

Further, a flexible supply pipe P from an automatic resin liquid supply device (not shown) is connected to the resin tank 5.

This supply pipe P is housed in the bottom of the resin pipe 5 in the longitudinal direction, and supply ports Pa for supplying the resin liquid are formed at a predetermined pitch in the upper part. Further, at the end of the resin tank 5, as shown in FIGS. 4 and 5, an auxiliary tank 5a for collecting surplus resin liquid is attached to the side wall of the resin tank 5 via an overflow port 5b. ing. Then, every predetermined time (in this embodiment,
Resin liquid is automatically supplied through the supply pipe P each time the dipping process for one jig plate 16 is completed.

A squeegee 30 is fixed to the front end of the squeegee slider 25 (q rotationally supported squeegee shaft 29, and a reversing plate 31 is fixed to the rear end of the squeegee slider 25 (q). Squeegee slider 2
A spring 32 is connected between the hook part 25a of 5 and the hook part 25a. For this reason, the reversing plate 31 is urged to rotate in both left and right directions by the spring 32, and takes a posture tilted left and right at a predetermined angle by a stopper (not shown) of the squeegee slider 25.

In normal times, the squeegee slider 25
At the same time, the squeegee 30 is located on the left side as shown by the imaginary line in FIG. There is. When the squeegee slider 25 moves to the right from this state, the lower part of the reversing plate 31 comes into contact with the stopper 6a provided on the right side of the frame 6, causing the squeegee 30 to tilt to the right.

Furthermore, when the squeegee 30 moves to the left side, the squeegee 30 contacts the aforementioned left stopper 6b and tilts to the left again.

As shown in FIGS. 6 and 7, a cylinder 33 is installed at the rear of the frame 6, and its upwardly directed rod 33a connects to a lever 35 of a shaft 35 rotatably supported by a support seat 34 of the frame 6. The rear ends of a pair of rods 39 that can be slid in the front and back direction by means of a guide section 38 provided on the frame 6 are respectively connected to a pair of levers 37 that are connected to both ends of the shaft 35. ing. Both rods 39 are located on both sides of the diaphragm l2, and grip blocks 40 are fixed to their front ends, respectively. Both blocks 40 each have a pair of gripping claws 4l protruding forward, and a guide plate 42 having a concave portion formed at its tip.

Then, as shown in FIG. 7, when the rod 33a of the cylinder 33 in the closed state protrudes, the levers 36 and 37 rotate as shown by the arrows, pushing the rods 39 forward and holding the gripping block 40. When the rod 33a of the cylinder 33 is turned on again, both gripping blocks 40 move rearward to the rear position.

Further, the gripping claws 41 are capable of gripping both ends of the jig plate 16 by being switched between an open state and a closed state by a sill in the gripping block 40.

Note that the gripping block 40 is normally waiting at a rear position, and its gripping claws 41 are in an open state.

On the other hand, the first. As shown in FIG. 7, the conveyor 3 is composed of first and second conveyors 43, 44, and the first conveyor 43 is installed in front of the deposition device 1.

The conveyor 43 has a pair of chains 43 arranged in parallel.
a, and both chains 43a have a large number of sprockets 45.
is guided in an annular manner within the coating apparatus by a

Further, a portion of the chain 43a in front of the deposition device 1 runs vertically from the upper side to the lower side, and the same portion serves as a delivery portion 46. The chain 43
Concave holding fittings 47 are attached at predetermined intervals to a, and the concave portions of the fittings 47 are connected to locking pins lfla ( (see Figure 8) can be latched. Note that, as shown in FIG. 1, the upper left side of the first conveyor 43 is open, and is used as the work supply section 48.

On the lower side of the first conveyor 430 chain 43a,
A rod-shaped guide rail 49 is installed respectively, and the side of the rail 49 on the delivery section 46 side has an arc shape along the flow of the chain 43a.

As shown in FIGS. 1 and 10, the second conveyor 44 is located below the front of the first conveyor 43, and the rear end of the second conveyor 44 is located below the front end of the guide rail 49. There is. This second conveyor 44 also has the first conveyor 4
3, a pair of chains 44a arranged in parallel are provided, and holding fittings 50 each having a concave tip are attached to all the links thereof.

A sensor 53 is provided at the upper front side of the second conveyor 44, and when the sensor 53 detects that the jig plate 16 has reached the front end of the second conveyor 44, the sensor 53 stops the conveyor 4.
4 is to be stopped.

The heater 2 is installed between both chains 44a of the second conveyor 44, and is designed to dry and harden the silicone resin of the hybrid IC 55 conveyed by the second conveyor 44.

Next, the main parts of the transport and storage device will be explained with reference to FIGS. 1 to 3.

As shown in FIG. 1, on the side wall located in front of the second conveyor 44, there is a second conveying means 60 for grasping both ends of the jig plate 16 on the second conveyor 44 and conveying it upward.
is installed. A horizontal support plate 6l is attached to the side wall, and on the upper surface of the support plate 6l, columns 62 are erected in parallel to each other at four locations (see FIG. 2), and a top plate 63 is provided at the upper end of each column 62. are connected and fixed. Further, two guide rods 64, 6 are provided between the support plate 61 and the top plate 63.
5 are connected vertically in parallel to each other, and both guide rods 64 and 65 are equipped with an elevating support 66 that can be raised and lowered, and an air cylinder 67 serving as an elevating mechanism is fixed to the lower surface of the support plate 6l. 68 for lifting and lowering operations.

There are two guide tubes 6 on the left and right on the upper surface of the lifting support 66.
A guide rod 70 is supported by each of the guide cylinders 69 so as to be movable in the front and rear direction, and a front and rear moving member 71 is connected to the distal ends of both rods 70. The front end of a rod 73 of an air cylinder 72 serving as a back-and-forth moving mechanism extending in the back-and-forth direction attached to the upper surface of the lifting support 66 is fixed to the back-and-forth moving member 71, and the front end of a rod 73 is fixed to the back-and-forth moving member 71. It is possible to move back and forth. Furthermore, clamp mechanisms 74 and 75 as gripping mechanisms are attached to both left and right side surfaces of the longitudinally movable member 71. These clamp mechanisms are equipped with a pair of front and rear clamp levers 77 and 78 at the bottom of the case 76, and are opened and closed by a clamp cylinder 79 inside the case 76, so that both ends of the jig plate 16 can be clamped. .

A third conveyance means 80 is installed in front of the second conveyance means 60 for forwardly conveying the jig plate 16 received from the second conveyance means 60.

A pair of left and right support frames 81.82 are attached to the clamp mechanism 74.7 on a horizontal wall located above the heater 2.
5 and are arranged parallel to each other in the front-rear direction.

Inside the support frames 8l and 82, a pair of front and rear pulleys 984.85 are connected to the support shaft 83 so as to correspond to each other.
are supported, and these pulleys 84 and 85 are provided with a conveyor 86 consisting of a timing belt, which supports the locking pins 16a at both ends of the jig plate 16 dropped from the clamp mechanisms 74 and 75, and transports them forward. 87 is attached. Three auxiliary pulleys 88 to 90 are provided midway between the two conveyors 86 and 87, and the middle pulley 8
A connecting shaft 9l is connected between 9 and both conveyors 86.87
are rotated synchronously. A drive motor 92 is installed on the horizontal wall surface, and a pulley 93 attached to the rotation shaft of the drive motor 92 rotates the conveyor 86 in the direction of the arrow in FIG.

A jig plate 16 is located near the front of the third conveying means 80.
A storage means 95 for storing the water is attached. This storage means 95 is composed of a storage case 96 and support rails 97.98 disposed inside the case 96 in correspondence with both the conveyors 86.87, parallel to each other, and in the front-rear direction. A large number of jig plates 16 conveyed by the conveyors 86 and 87 are supported and stored in parallel in sequence.

Next, the coating operation of the hybrid IC 55 by the coating apparatus configured as described above will be explained.

As shown in FIG. 7, a large number of unprocessed hybrid ICs 55 are attached to the lower edge of the jig plate 16 with their terminals facing upward, and the operator passes the jig plate I6 through the work supply section 48. Holding fitting 47 of first conveyor 43
Put it on top. Since the first conveyor 43 increments with the interval between the holding fittings 47 being one stroke, the operator supplies a new jig plate 16 to the conveyor 43 each time the conveyor 43 increments. When the first jig plate 16 reaches the transfer section 46 and the first conveyor 43 enters the inching stop state, both gripping blocks 40 that have been waiting at the rear position are switched to the forward position by the cylinder 33, and the respective gripping claws 4
1 is in a closed state and grips both ends of the jig plate 16.

At this time, the guide plate 42 serves to guide the gripping claws 4l so that the gripping claws 41 can accurately grip the jig plate 16.

Meanwhile, along with this, the squeegee 30 moves from the left side to the right side, reverses itself, moves to the left side, and returns to its original position. When the squeegee 30 moves to the right side, the tip of the squeegee 30 contacts only the convex part caused by the sagging of the liquid surface of the silicone resin, and when the squeegee 30 moves to the left side, the tip and the curved part of the squeegee 30 contact Smooth the liquid surface by sliding it on the silicone resin.

Furthermore, as shown in FIG. 9(b), the gripping block 40
While being moved backward by the cylinder 33, the gripped jig plate 16 is positioned with respect to the offset plate 15 using the knock pins 15a and overlapped with each other. Then, as shown in FIG. 9(C), the gripping block 40
1 is brought into the open state, and further retreated to return to the rear position shown in FIG.

On the other hand, the jig plate 16 is fixed to the offset plate 15 by the fixed lever l7, and at the same time, the eccentric shaft l4 is rotated by the motor l3 to vibrate the offset plate l5. The offset plate 15 is lowered by the cylinder 7 while vibrating, and the hybrid IC 55
is immersed in the silicone resin in the resin bath 5. The resin tank 5
is constantly vibrated by a bubbler built into the base 4 while the coating device is in operation. What about the vibration of the offset plate l5? 1. The process may start immediately before the hybrid IC 55 enters the resin liquid.

Further, the offset plate 15 rises to the upper position after a predetermined period of time has elapsed, and pulls the hybrid IC 55 out of the silicone resin. Then, as shown in FIG. 9(c), the gripping block 4? moves forward from the rear position while being guided by the guide plate 42, and grips both ends of the jig plate 16 by closing the gripping claws 41, as shown in FIG. 9(b). At the same time, the fixing lever 17 is tilted by the cylinder 23 to release the fixation of the jig plate 16, and as shown in FIG. 9(a), the gripping block 40 further advances to the forward position and is held again. Both ends of the jig plate 16 are fitted into the recesses of the metal fittings 47. This jig plate 16 moves downward in the delivery section 46 as the first conveyor 43 moves downward, and as shown by the imaginary line in FIG. 49
It moves forward while being guided by the guide rail 49 while being caught between the two and prevented from falling.

On the other hand, the squeegee 30 repeats the same operation as described above,
By pulling up the hybrid IC 55 in the silicone resin, unevenness formed on the surface of the resin is smoothed out.

Then, as shown in FIG. 10, the jig plate 16 falls onto the holding fitting 50 of the second conveyor 44 that was waiting at the end of the guide rail 49 below, and while being conveyed to the second conveyor 44, The silicone resin adhered to the hybrid IC 55 is dried and solidified by the heater 2 . Further, the jig plate 16 reaches the sensor 53 by the conveyor 44 and activates the sensor 53. Then, the conveyor 44 is stopped and the jig plate 16 is stopped at a predetermined position, and the clamp mechanisms 74 and 75 that have been waiting above are moved down by the cylinder 67. When the clamp levers 77 and 78 in the open state descend to the positions at both ends of the jig plate 16, the cylinder 67 is stopped, and then the clamp cylinder 79 is operated.
Once both ends of the jig plate 16 are clamped, the rod 68 of the cylinder 67 raises the clamping mechanism 74,75.

When the clamping mechanism 74,75 reaches its highest position,
The cylinder 67 is stopped, the cylinder 72 is operated, and the back-and-forth moving member 71 is moved forward (to the left in FIG. 1). When the clamp mechanisms 74, 75 move directly above the ends of the conveyors 86, 87, the cylinders 72 are stopped and the clamp levers 77 of the clamp mechanisms 74, 75.
78 is released, and the locking pins 16a, 16a of the jig plate 16 that have been gripped fall onto the conveyor 86, 87 and are supported. Since the conveyors 86, 87 are constantly rotating, the jig plate 16 is conveyed forward in FIGS. Locking pin 16a of this jig plate 16
, 16a are the storage means 9 from the front ends of the conveyors 86, 87.
5 on support rails 97, 98.

The above explanation focuses on one jig plate 16, but in reality, a large number of jig plates 16 are conveyed to the first and second conveyors 43, 44 in the coating device, and the hybrid ICs 55 After being sequentially coated with silicone resin and dried, a large number of jig plates 16 are arranged in parallel on the support rails 97 and 98 of the storage means 95 via the second conveyance means 60 and the third conveyance means 80. stored.

In this way, in the coating apparatus of this example,
Not only is the resin tank 5 containing silicone resin always vibrated by the vibrator in the base 4, but also the hybrid I
Since C55 is immersed in silicone resin while vibrating together with offset plate l5, hybrid IC5
Bubbles generated on the surface of 5 can be removed by these vibrations. Furthermore, by these vibrations, the silicone resin is uniformly deposited on the surface of the hybrid IC55,
A resin tank with uniform thickness can be formed.

In addition, in the coating apparatus of this embodiment, in order to smooth out the unevenness that occurs on the liquid surface after the hybrid IC 55 is taken out from the resin tank 5 using the squeegee 30, the surface of the silicone resin adhered to the hybrid IC 55 is smoothed by the unevenness. There is no variation in height.

In particular, in the embodiment, since the second conveyance means 60, the third conveyance means 80, and the storage means 95 are installed, the jig plate 16 conveyed by the second conveyor 44 is automatically transferred to the support rail of the storage means 95. Hybrid IC5 mounted on each jig plate 16 in parallel on 97.98
5 can be stored automatically and orderly without making them come into contact with each other, improving work efficiency and reducing product costs.

Although the coating apparatus of this embodiment is equipped with a squeegee 30 for smoothing the surface of the silicone resin, the coating apparatus may be implemented without this. If the squeegee 30 is omitted, the vibration of the resin tank 5 causes the resin liquid to flow in the tank 5 and smooth the liquid surface, but this takes a long time if the resin has a high viscosity. Therefore, it is better to have a squeegee 30.

Furthermore, in the coating apparatus of this embodiment, silicone resin was applied to the hybrid IC 55 as a circuit board, but any circuit board that needs to be coated with resin may be used. The resin is not limited to silicone resin either.

Further, in the above embodiment, the present invention is applied to a circuit board coating apparatus, but it can also be applied to, for example, various production machines.

〔Effect of the invention〕

As described in detail above, the present invention has excellent effects in that a large number of articles can be automatically transported and stored in an orderly manner, improving work efficiency and reducing the cost of articles.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view showing the entire coating device, Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1, Fig. 3 is a cross-sectional view taken along line B-B in Fig. 2, and Fig. 4 is a sectional view of the coating device. , FIG. 5 is a side view showing the transfer section of the deposition device and the first conveyor, FIG. 6 is a partial front view showing the movement of the squeegee of the deposition device, and FIG. 7 is a view showing the gripping of the deposition device. A partial side view showing the relationship between the claws and the holding fittings of the first conveyor, FIG. 8 is a partial front view showing the hybrid IC fixed to the jig plate, and FIGS. 9(a) to (c) are the gripping FIG. 10 is an explanatory diagram showing the order of delivery of the jig plate from the attachment device to the first conveyor using claws, and FIG. 10 is an explanatory diagram showing the movement of the jig plate from the first conveyor to the second conveyor. 3... Conveyor as first conveyance means, 16... Jig plate as article, 43 (44)... First (second) conveyor, 53... Sensor, 60... Second Conveying means, 66... Elevating support body, 67... Cylinder as elevating mechanism, 72... Cylinder as forward/backward movement mechanism, 74.75... Clamp mechanism as gripping mechanism, 77. 78... Clamp lever, 79... Clamp cylinder, 80... Third conveyance means, 86.87
... conveyor, 92 ... drive motor, 95 ... storage means, 96 ... storage case, 97.98 ... support rail.

Claims (1)

[Claims] 1. A first conveying means (3) that intermittently conveys the article (16).
), installed on the article take-out side of the first conveying means (3),
A gripping mechanism (74, 75) that grips the article (16) conveyed from the conveyance means (3), an elevating mechanism (67) that raises and lowers the gripping mechanism, and a lifting mechanism (67) that moves the gripping mechanism (74, 75) back and forth. a second conveyance means (60) consisting of a back-and-forth movement mechanism (72) that reciprocates in the direction; and a gripping mechanism ( 74, 75), and transports it to the second conveyance means (60).
and a storage means (95) comprising support rails (97, 98) for storing the articles transported from the third transport means (80).
).