KR19980041643A - Slope Conveyor System for Multi-Flow Mixed Print Board Assembly Production System - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs

The present invention relates to a slope conveyor apparatus of a multi-type mixed flow print board assembly production system.

I. The technical problem to be solved by the invention

According to the present invention, several PCBs are mounted on a carrier and assembled at the same time in a single production line to transfer the carriers through the main first conveyor so that the PCB is soldered in an inclined state in the soldering apparatus and the carriers are transported horizontally. A slope conveyor apparatus is provided.

All. Summary of Solution of the Invention

The present invention is a PCB of the carrier transported in a horizontal state through a single main conveyor line by assembling multiple PCBs in each cell at the same time in a multi-generation mixed-flow printed board assembly production system is inclined in the soldering device and the soldering is completed Characterized in that the carrier is transferred back to the horizontal state by the slope conveyor device to transfer the soldered carrier to the elevator side.

la. Important uses of the invention

The present invention applies to a printed board assembly production system.

Description

Slope Conveyor Unit in Multi-generation Mixed-flow Printed Board Assembly Production System

The present invention relates to a multi-flow mixed PBA production system, and in particular, several PCBs are assembled at the same time in one production line using a carrier and transported through the main first conveyor to solder the PCB in an inclined state in the soldering apparatus. And it relates to a slope conveyor device for moving the carrier to be transported horizontally.

In general, the factory automation assembly system is a system for assembling by soldering after manually inserting a number of parts in the PCB according to the work process using a conveyor belt to assemble the PCB used for electronic devices. However, as the technology changes rapidly in recent years, the life cycle of the product is short, and thus a new product that meets consumer needs must be produced in response to the technological change. In the case of producing such products, consumers demand high quality and low price products, so the cost of production must be reduced to lower the price. In order to reduce the production cost, the productivity is improved by simplifying the manufacturing process or reducing the man-hour. In order to increase productivity by simplifying the manufacturing process or reducing man-hours, it can be said that the design of the factory automation system depends on how to put the minimum number of people in the right place.

Therefore, the inventors of the present application developed a multi-type mixed-flow printed board assembly production system that can increase the productivity by assembling several PCBs in each cell at the same time to complete the soldering and return to each corresponding cell, and filed on November 25, 1996. Has been filed for a patent.

As shown in FIG. 1, the multi-type mixed flow print board assembly production system as described above includes a plurality of first-fourth work cells 101, 102, 103, and 104. 112, 113, 114, respectively, the carrier after mounting the PCB to the carrier to insert the components, the soldering is completed to collect the returned carrier, the carrier is located on the right end of the conveying conveyor transport switch When 251 is pressed to transfer to the first conveyor (120). The transfer switch 251 generates a key signal for transferring the carrier as the operator presses. The forward and reverse rotation switches 252-253 generate key signals for rotating the circular base plate 231-238, which is formed of a plurality of partitions, in a forward or reverse direction as the operator presses the switch. The plurality of circular base plates are installed in each of two work cells. The reset switch 254 generates a key signal for rotating the circular base plate to the initial position as the user presses it. A plurality of computers (240-243) stores a program for displaying a component insertion instruction for each PCB type, and as the plurality of forward and reverse switches (252-253) is pressed in the forward and reverse directions Rotate the round bed. The plurality of circular mother boards (231-238) is made of a circle, a plurality of partitions are separated to load a variety of different parts to rotate to supply the corresponding parts under the control of each of the PLC (220). The first to fourth up-down units 131, 132, 133, and 134 raise the workbench upper conveyors 111, 112, 113, and 114 to receive carriers when the transfer switch 251 is pressed. When the transfer of the carrier is finished, the carrier descends so that the carrier is obtained above the first sub-conveyor 120.

The first conveyor 120 receives carriers transferred from the plurality of cells 101, 102, 103, and 104, respectively, and transfers the carriers to solder the PCBs mounted on the carriers. Since the conveyed carrier is located in the up / down rotation unit, the up / down and rotation unit 140 is connected to the first conveyor 120 through the first to fourth updown units 131, 132, 133, and 134. When the carrier has been transported to the carrier, the carrier has been raised to the set height, rotated 90 °, and then the down-rotating unit conveyor width is reduced to match the conveyor width to be transported. Automatically driven under the condition, it is transferred to the spray flux equipment. Spray flux 150 allows flux flux to be applied to a PCB mounted in a carrier that is rotated and transported from the up / down and rotation unit 135. The auxiliary conveyor 160 transfers the carrier transported horizontally from the spray flux 150 to be inclined by 6 °. Soldering (Soldering) machine device 170 is soldered to transfer the PCB mounted on the carrier inclined from the auxiliary conveyor (160). The slope conveyor 180 lowers and transports only one side of the transferred carrier when soldering is completed from the soldering machine device 170 and the transferred carrier reaches a set position. The elevator 190 lowers the carrier so as to be connected to the second conveyor 210 when the carrier conveyed from the slope conveyor 180 enters the set position. The rotary unit 200 rotates the carrier lowered and transferred from the elevator 180 by 90 ° to change the direction in which the carrier is placed. The second conveyor 210 transfers the carrier rotated from the rotation unit 200 to be returned. The fifth to eighth up-down units 135, 136, 137, and 138 are installed at the lower end of the second conveyor 210 perpendicularly to the first-fourth up-down devices 131, 132, 133, and 134. The carrier transported through the second conveyor 210 is raised to the position of the lower bench conveyor 115, 116, 117, 118 to be returned. The plurality of lifters 221, 222, 223, and 224 lift the carriers returned through the platform lower conveyors 115, 116, 117, and 118 to the positions of the plurality of bench upper conveyors 111, 112, 113, and 114. Let's do it.

Programmable Logic Controller (PLC) 220 is a controller that controls the entire system. The PLC 220 receives a determination signal from a plurality of sensors for determining a transfer state of a carrier and controls the carrier to be stopped or transported, and when a plurality of transfer switches 251 are pressed, the upper part of the work bench Driving the conveyors 111-114, respectively, and controlling the plurality of circular platens 231-238 to rotate in the forward or reverse direction in response to the pressing of the plurality of forward and reverse switches 252-253, respectively. Multi-generation mixed-flow printed board assembly production system.

Since the PCB mounted on the carrier has to pass through the soldering device in order to solder in the multi-mix mixed-printed board assembly production system as described above, the carrier mounted with the PCB from the auxiliary conveyor 160 is inclined to be inclined in the soldering device. The soldering on the PCB of the carrier is completed when it is transferred. Afterwards, in order to safely transport the carrier, which is inclinedly transported from the soldering apparatus, to the elevator side, an apparatus for moving the carrier horizontally is necessary.

Because the conveyor conveyed into the elevator is horizontally installed, the barrier mounted with the soldered PCB in the soldering device is transported at an inclination of 6 degrees, so a slope conveyor is required to safely transport it to the elevator.

Therefore, an object of the present invention is to mount a plurality of PCB to the carrier, each assembly at the same time in one production line to transport the carrier through the first conveyor to solder the PCB in the inclined state in the soldering device and horizontally transported carrier It is to provide a slope conveyor apparatus to be transferred to.

In order to achieve the above object, the present invention, in the multi-mix mixed-circuit board assembly production system, the PCB of the carrier transported in a horizontal state through a single main conveyor line by assembling several PCBs at the same time for each cell inclined in the soldering device Since the transfer is completed and the soldering is completed, the carrier is transported back to the horizontal state by the slope conveyor device to transfer the soldered carrier to the elevator side.

1 is a schematic configuration diagram of a multi-type mixed flow print board assembly production system;

2 is a block diagram of a slope conveyor apparatus according to an embodiment of the present invention.

3 is a side view of the slope conveyor apparatus according to the embodiment of the present invention.

4 is an operational state diagram of the slope conveyor according to an embodiment of the present invention.

Explanation of symbols for main parts of the drawings

180: slope conveyor device 300: main frame

302: fluid frame 304: cylinder

306: flanger 308: conveyor

310: pulley 312: rotating shaft

314: pulley 416: driving motor

318: first sensor 320: second sensor

BEST MODE Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 2 is a configuration diagram of a slope conveyor apparatus according to an embodiment of the present invention, Figure 3 is a side view of the slope conveyor apparatus according to an embodiment of the present invention, Figure 4 is an operational state diagram of the slope conveyor according to an embodiment of the present invention. to be. Referring to the configuration and operation of the present invention with reference to it.

In the multi-flow mixed printed board assembly production system, the slope conveyor apparatus 180 is installed between the soldering apparatus 170 and the elevator 190, and the slope conveyor apparatus 180 is a flow frame on the main frame 300. 302 is installed, but the flow frame 302 is coupled to both sides by a hinge is installed so that the front end can move up and down. The cylinder 304 is installed at the center of the main frame 300 to couple the upper portion of the cylinder flanger 306 with the lower end of the flow frame 302. Conveyors 308 are installed on both inner sides of the flow frame 302 so as to transport the carrier on which the PCB is mounted, and the conveyors 308 are pulleys of both side pulleys 310 and the rotating shaft 312 installed at the tip end side. Connect with 314. The drive motor 316 is installed on the outside of the flow frame 302 in which the rotating shaft 312 is installed so as to transmit power to the rotating shaft 312. It is connected by a chain between the drive motor 316 and the rotating shaft 312. At the front end and the rear end of the flow frame 302, a first sensor 318 and a second sensor 320 for detecting a carrier are respectively installed. The conveyor 308 is made of a flat belt to connect with the pulley 314 installed on both side pulley 310 and the rotating shaft 312 on the tip end side, the cylinder 304 is the flanger 306 is to be moved up and down Pneumatic cylinder can be used.

The slope conveyor apparatus 180 configured as described above is soldered to the PCB of the carrier in the soldering apparatus 170, and the carrier to be transported is positioned in the flow frame 302 inclined from the main frame 300. The carrier is detected by the first sensor 318 installed in the driving motor 316 to drive the conveyor 308 is operated. At this time, the driving force is transmitted to the rotating shaft 312 connected to the chain while the drive motor 316 rotates. At this time, since the pulley 314 fixedly installed on the rotation shaft 312 rotates, both conveyors 308 connected to the pulley 310 at the spaced position rotate at the same speed. At this time, when the carrier is transported along the conveyor 308 to the elevator 190 side, a cylinder 304 installed at the bottom of the main frame 300 to operate the flanger 306 up and down is operated so that the flanger 306 is downward. Since the cylinder 304 is moved and inserted into the cylinder 304, the flow frame 302 coupled with the flanger 306 moves downward when the tip side is moved downward with respect to both hinges, and the cylinder 304 stops operating. After the carrier transported along the conveyor 308 continues to be transported by the conveyor 308 of the flow frame 302 in a horizontal state and passes the second sensor 320, the cylinder 304 is operated again to form a flanger 306 ) Moves upward, pushing the tip side of the flow frame 302 upward. At this time, the flow frame 302 is moved to the original position inclined from the main frame 300 in the initial state is moved upward with respect to the hinge and the cylinder 304 is stopped. After that, the carrier is returned to the elevator 190 in a horizontal state by the conveying conveyor. At this time, when the carrier stays in the conveying conveyor for 10 seconds (that is, when the conveying conveyance is defective and does not move), a warning light and an alarm sound are generated on the assembly platform side.

As described above, the present invention, the carrier is inserted into the PCB of different models in a plurality of working cells through the first conveyor to transfer the soldering in the inclined state of the PCB in the soldering device and sludge the carrier to be transported There is an advantage that the carrier can be safely transported to the elevator side and returned by being transported horizontally by the conveyor device.

Claims (5)

In the multi-flow mixed printed board assembly production system, Slope conveyor device is installed between the soldering device and the elevator is installed on the top of the main frame flow frame, the flow frame is coupled to both sides by a hinge is installed so that the front end can move up and down, in the center of the main frame A cylinder is installed so that a flanger is coupled to the lower end of the flow frame, and a conveyor is installed on both inner sides of the flow frame so as to transport a carrier. The conveyor is connected to pulleys installed on both side pulleys and the end shaft side rotation shaft. The rotating shaft is a slope conveyor apparatus of the multi-stream mixed-flow printed board assembly production system, characterized in that installed to transmit power by a drive motor installed in the flow frame. The method of claim 1, wherein the conveyor is connected to the pulleys installed on both the pulley and the rotary shaft of the front end side, the rotary shaft installed in the flow frame is installed so as to transmit power by connecting to the drive motor installed on the outside chain. Slope conveyor unit in multi-mix mixed-printed board assembly production system. The slope conveyor apparatus of claim 1, wherein first and second sensors are installed at the front end and the rear end of the floating frame, respectively. The slope conveyor apparatus of claim 1, wherein the cylinder uses pneumatic cylinders through which the flanger can be moved up and down. The slope conveyor apparatus of claim 1, wherein the conveyor is a flat belt.