JPH02226790A - Drying apparatus for substrate - Google Patents

Abstract

PURPOSE:To make an apparatus small-sized and compact, and improve drying efficiency by a method wherein substrates are piled up, accommodated in a drying furnace and dried. CONSTITUTION:Substrates 4 on which circuit patterns are printed are carried forward by a conveyer 6; by a sending-in apparatus 16, the substrates are piled and accommodated, one by one, in a magazine 3 which is arranged on an elevating stand 13 and ascends by every pitch. The magazine 3 is transferred on a conveyer 2 by a transferring apparatus 17, and carried in a drying furnace 1 by the conveyer 2. The substrates 4 in the magazine 3 are dried. The magazine 3 carried out from the drying furnace 1 is transferred on an elevating stand 22 of a second transferring apparatus 20 by a transferring apparatus 23. The elevating stand 22 descends by every pitch, and a sending-out apparatus 24 is synchronously driven. Thereby, the substrates 4 in the magazine 3 are transferred on a carrying-out conveyer 7 one by one, and sent to the next process by the conveyer 7. The magazine 3 which has become empty is transferred on a feedback conveyer 8 by a transferring apparatus 25, and again transferred on the elevating stand 13.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a drying device for a board on which a circuit pattern is printed. Store them in stacks,
The substrates are dried while circulating this magazine.

(Prior Art) A board on which a circuit pattern has been printed by a printing device is sent to a drying device, and after drying the circuit pattern, it is sent to the next process. FIG. 4 is a plan view of a conventional drying device,
IOQ is a drying oven, 101 is a conveyor running inside the drying oven 100, and 102 is a substrate 1 on which a circuit pattern is printed.
03 toward the drying oven lOO, an inlet conveyor, 1
04 is a front stock conveyor, 105 is a rear stock conveyor, 106 is a carry-out conveyor for carrying out the dried substrate 103 to the next process, 107 to 110 are cylinders for transferring the substrate 103 from each conveyor to each conveyor, etc. It is a transfer device consisting of.

The substrates 103 on which a circuit pattern has been printed by a printing device (not shown) are transferred one by one to a drying oven lOO by a conveyor 102.
transported towards. However, the drying oven 10
Since the drying efficiency cannot be improved if the feed is carried out at zero, the front stock conveyor 10
4 is provided, and a plurality of sheets (3 in this example) are delivered from this conveyor 104.
1) of substrates 103 are simultaneously transferred to the conveyor 101 by the transfer device 108, and while these substrates 103 are being conveyed in parallel, they are dried in the drying oven 100, and the dried substrates 10 are
3 is stocked on the post-dock conveyor 105,
The transfer device 110 transfers the sheets one by one to the discharge conveyor 106.

Further, the surface of the circuit pattern printed on the substrate 103 by a printing device is likely to have unevenness, so if the substrate 103 is placed in the drying oven 100 immediately after printing and dried, the uneven circuit pattern will dry and solidify as it is. . Therefore, before sending the substrate 103 from the printing device to the drying oven 100, it is necessary to buy a certain amount of time to level out the unevenness of the circuit pattern. The substrate 103
This time was gained by transporting the circuit pattern, and during this time the unevenness of the circuit pattern was leveled.

(Problems to be Solved by the Invention) Drying a plurality of substrates 103 while conveying them in parallel on the conveyor 101 as described above has the advantage of improving drying efficiency, but on the other hand, 100
The width W of the drying oven 100 becomes extremely large, and since the stock conveyors 104 and 105 are provided at the front and rear, the width of the entire device also becomes extremely large.
There was a problem that a large installation space was required.

Therefore, an object of the present invention is to provide a drying apparatus that solves the problems of the conventional apparatus, that is, a small and compact substrate drying apparatus that has high drying efficiency.

(Means for Solving the Problems) To this end, the present invention includes a drying oven, a conveyor for conveying a magazine stacked with substrates inside the drying oven, and a circuit pattern printed on the conveyor. an inlet conveyor that conveys the dried substrates, an unloading conveyor that conveys the dried substrates to the next process, a return conveyor that returns the magazine taken out from the drying oven to the entrance side of the drying oven, and the above-mentioned conveyance from this return conveyor. A first transfer device that transfers the magazine to the conveyor, a feed device that feeds the substrate from the carry-in conveyor to the magazine, a second transfer device that transfers the magazine from the transfer conveyor to the return conveyor, and a drying device. A substrate drying device is constituted by a sending device that sends out the finished substrates in the magazine to the above-mentioned carrying out conveyor.

(Function) In the above configuration, the boards sent by the carry-in conveyor are stacked and stored one by one in the magazine by the feed device, and during this time, time is gained for leveling the circuit pattern.

Next, the magazine is sent to a drying oven by a conveyor,
The substrates housed in this are dried. After drying, the substrates in the magazine are carried out from the drying oven, and are carried out one by one by a delivery device to a delivery conveyor, and sent to the next process. Furthermore, the empty magazine is returned to the entrance side of the drying oven by the return conveyor, and the above operation is repeated.

(Example) Next, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of the substrate drying apparatus, and FIG. 2 is a side view of the same, in which 1 is a drying oven and 2 is a conveyor passing through the drying oven. Reference numeral 3 denotes a magazine in which substrates 4 are stacked and stored, and are transported by a file feeder 2 and passed through a drying oven 1, where the circuit patterns printed on the substrates 4 are dried.

5 is a heater provided at the top of the drying oven 1.

Reference numeral 6 denotes a carry-in conveyor provided in front of the conveyor 2, which conveys the substrates 4 on which circuit patterns are printed by a printing device (not shown) one by one toward the drying oven l. 7
is a discharge conveyor provided behind the conveyor 2, which conveys the dried substrates one by one toward the next process. Reference numeral 8 denotes a return conveyor provided below the drying oven l, which returns the magazine 3, which has been emptied after the substrates 4 have been carried out to the carry-out conveyor 7, to the entrance side of the drying oven l.

Reference numeral 11 denotes a first transfer device for the magazine 3, which is provided between the carry-in conveyor 6, the transfer conveyor 2, and the return conveyor 8, and is composed of a lid. It consists of a lifting platform 13 that moves up and down.

14 is a transfer device consisting of a cylinder provided at the terminal end of the return conveyor 8; 14a is a reciprocating rod thereof; when the rod 14a pushes the magazine 3 from behind, the magazine 3 is moved from the return conveyor 8 onto the lifting platform 13; Transfer to.

Reference numeral 9 denotes a cylinder for moving the transfer device 14 forward and backward relative to the conveyor 8 so that the rod 14a does not get in the way when the magazine 3 advances forward beyond the rod 14a.

16 is a feeding device consisting of a cylinder provided at the terminal end of the supply conveyor 6, and 16a is a reciprocating rod thereof.As the rod 16a reciprocates, the magazine 3 is placed on the lifting platform 13 and moves up in pitch. , feeds the substrates 4 sent by the competition cutout 6 one by one. 10 is a cylinder for moving the feeding device 16 forward and backward with respect to the conveyor 6, so that the rod 16a does not get in the way of the advancement of the substrates 4. This is to remove it from the conveyor 6. Reference numeral 17 denotes a transfer device consisting of a cylinder provided on the side of the transfer device 11, and when the rod 17a protrudes and retracts, the magazine 3 on the elevating table 13 on which the substrates 4 are stacked is transferred to the transfer conveyor. 2 Move up.

20 is a second transfer device provided between the conveyor 2.8 and the carry-out conveyor 70, and includes a guide section 21 and a lifting platform 2.
It consists of 2. 23 is a transfer device consisting of a cylinder provided at the end of the conveyor 2; 23a is a reciprocating rod thereof; the magazine 3 carried out from the drying oven 1 is backed by the rod 23a, and is moved up and down from the conveyor 2; Transfer it to the table 22. Reference numeral 19 is a cylinder similar to the cylinder 15 described above, and the transfer device 23 is connected to the conveyor 2 so that the rod 23a does not interfere with the advancement of the magazine 3.
It moves forward and backward against the object. 24 is transfer device 2
This is a delivery device consisting of a cylinder provided on the side of the magazine 3, and when its rod 24a protrudes and retracts, the board 4 in the magazine 3, which is placed on the lifting platform 22 and is lowered in pitch, is transferred to the delivery conveyor 7. Send out one piece at a time. Reference numeral 25 denotes a transfer device consisting of a cylinder provided at the lower side of the transfer device 20, and when the rod 25a protrudes and retracts, the substrate 4 is sent out and the empty magazine 3 is transferred to the elevator platform 22.
from there onto the return conveyor 8.

FIG. 3 is a perspective view of the magazine 3.
is box-shaped and is formed by assembling long and thin plates into a frame shape for good ventilation, and a plurality of ribs 15 for stacking the substrates 4 are provided inside the box. By storing the circuit boards 4 in stacks in the magazine 3 in this way and drying the circuit pattern printed on the board 4 while circulating the magazine 3, the width W of the drying oven 1 and the device By reducing the overall width, the overall structure can be made compact.

This apparatus has the above-mentioned configuration, and the overall operation will be explained next.

The substrates 4 on which the circuit patterns have been printed by a printing device (not shown) are transported forward by a carry-in conveyor 6, and are stacked one by one into a magazine 3 that is placed on a lift table 13 and lifted by a pinch. It is stored in piles. In this way, while the magazine 3 is fully loaded with substrates 4, the surface irregularities of the circuit patterns become level.

The magazine 3 full of substrates 4 is transferred onto the transfer conveyor 2 by the transfer device 17, and is transferred by the conveyor 2 through the drying oven 1, and the substrates 4 in the magazine 3 are dried. The magazine 3 carried out from the drying oven 1 is transferred by the transfer device 23 onto the lifting table 22 of the second transfer device 20. Next, the lifting table 22 is lowered in pitch, and in synchronization with this, the sending device 24 is moved. By driving, the substrates 4 in the magazine 3 are transferred one by one to the carry-out conveyor 7, and sent to the next process by this conveyor 7. Also, the empty magazine 3 is transferred onto the return conveyor 8 by the transfer device 25, and transferred again to the lifting platform 13 of the first transfer device 11, and the above operation is repeated.

(Effects of the Invention) As described above, the present invention stores the substrates in stacks in a magazine and then dries them in the drying oven. , the entire drying device can be configured compactly, and the drying efficiency can be improved.

Further, the time during which the boards sent by the carry-in conveyor are stored one by one in the magazine by the feeding device can be utilized as time for leveling the circuit pattern immediately after printing.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is an overall perspective view of a substrate drying device, Fig. 2 is a side view of the same, Fig. 3 is a perspective view of a magazine, and Fig. 4 is a conventional device. FIG. l... Drying oven 2... Transfer conveyor 3... Magazine 4... Board 6... Carrying in conveyor 7... Carrying out conveyor 8... Return conveyor 11... First transfer device 16 ... Sending device 20 ... Second transfer device 24 ... Sending device

Claims (1)

[Claims] A drying oven, a transport conveyor that transports a magazine stacked with boards inside the drying oven, an input conveyor that transports boards on which circuit patterns are printed to the transport conveyor, and a transport conveyor that transports boards printed with circuit patterns to the drying oven. A carry-out conveyor for carrying out the magazine carried out to the process, a return conveyor for returning the magazine carried out from the drying oven to the entrance side of the drying oven, a first transfer device for transferring the magazine from the return conveyor to the above-mentioned transport conveyor, and the above-mentioned carry-in conveyor. A feeding device that feeds the substrate from the magazine to the magazine, a second transferring device that transfers the magazine from the transport conveyor to the return conveyor, and a feeding device that sends the substrate in the magazine that has been dried to the carrying out conveyor. A substrate drying device comprising: