JPH07179213A - Reflow device having width correcting function - Google Patents

Abstract

PURPOSE:To prevent an input setting error of a conveyor width, and prevent the occurrence of a machine error (conveyor width driving motor stopping accuracy), in a reflow device. CONSTITUTION:A control device 7 of a reflow device has an opening-closing operation range setting part 13 to input a variable range of a conveyor width, a motor control part 12 to indicate a control order to a control device 15 to control a motor 16 to drive a variable side conveyor 3 of the reflow device, a detecting part 10 to detect a signal from a sensor 5, a board carrying-in possible signal generating part 14 to output a board carrying-in possible signal to a pre-process equipment 2 when a signal is detected and an alarm generating part 11 to output an alarm when the signal is not detected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-line type reflow device with an automatic variable width function, and more particularly to a reflow device with a width correction function for stabilizing the transfer of printed boards between the front process equipment side and the reflow device side.

[0002]

2. Description of the Related Art Conventionally, a conveyor width changing method for an inline type automatic reflow device with a variable width function is performed by receiving conveyor width information and a conveyor width changing command from an operation panel or a control terminal to determine the status of a substrate carried on the conveyor. The opening and closing operation of the conveyor width is performed by the following, and after confirming that the board carry-in on the conveyor has reached the destination, the board carry-out acceptance signal is output to the previous process equipment, and the operation to change the conveyor width is finished. It was.

[0003]

The conventional conveyor width changing method of the reflow device is faithfully performed with respect to the input set values from the operation panel and the control terminal. Therefore, if an operator makes a mistake in inputting the setting value for changing the conveyor width, a mechanical error (conveyor width drive motor stop accuracy, backlash, etc.), or a conveyor width drive system trouble, etc. There is a difference between the width of the pre-process equipment conveyor and the width of the conveyor, which not only hinders the transfer of the load on the conveyor, but also may cause the load to drop and be damaged. Therefore, after the conveyor width change command, the operator had to confirm the width.

[0004] As a conventional example that solves the above-mentioned prevention of the fall of the material loaded on the conveyor, there is a technique described in Japanese Patent Application Laid-Open No. 56-61219. In this publication, as a method for preventing the fall of the article loaded on the conveyor, a horizontally-rotatable conveyance assisting device,
There is disclosed a configuration in which it is arranged so as to be able to move in and out in a gap between a transfer conveyor above a rail and a relay conveyor. In this configuration, when the panel is transferred from the transfer conveyor to the relay conveyor and sent to the next process, the transfer auxiliary device is projected above the rail, so that the panel smoothly moves from the transfer conveyor to the relay conveyor via the transfer auxiliary device. Is transferred to the next step.

Further, as a conventional example for preventing the loaded object from dropping and being damaged on the adjacent conveyor, Japanese Patent Laid-Open No. 60-2136 has been proposed.
There is a technique described in Japanese Patent No. 18. In this publication, the first conveyor and the second conveyor are arranged in a row, and a plurality of loaded objects on the first conveyor are moved to a conveying surface on the second conveyor, and further, while maintaining the row state, toward the next stage. A configuration for carrying the mounted article is described. According to this technique, the height of the front end of the transfer surface of the second conveyor is between the rear end of the load and the rear end of the transfer surface of the first conveyor with the center of gravity of the load transferred to it. The height is set slightly higher than the rear end of the conveying surface of the first conveyor to such an extent that a gap is generated in the first conveyor. Furthermore,
The relative speed of the second conveyor is set to a high speed when the center of gravity of the loaded object is transferred to the second conveyor.

Although the above publications disclose techniques for preventing falling and damage of the material loaded on the conveyor, there is a mistake in the input set value from the operator on the operation panel and the control terminal, and a mechanical malfunction (conveyor width drive motor). No resolution is disclosed for the (stop accuracy) and the conveyor width drive system trouble.

Therefore, in the above-mentioned prior art, when the width of the conveyor of the reflow device is changed, there is still a problem that the operator must always monitor the width of the conveyor in order to confirm the width. It was

The present invention solves such a problem, and when the conveyor width of the reflow device is varied, the input variable range error or the mechanical error and the width drive system trouble are externally generated. An object of the present invention is to provide a reflow device with a width correction function, which allows an operator to operate without constantly monitoring it by outputting an alarm signal.

[0009]

According to the reflow device with a width correction function of the present invention, the positioning object provided at the end of the variable side conveyor of the front process equipment and the head part of the variable side conveyor of the reflow device. And a control device that receives the detection signal from the positioning sensor and that controls the opening and closing of the variable-side conveyor width of the reflow device. To do.

According to the reflow device with a width correction function of the present invention, the control device further includes a motor for driving the variable side conveyor of the reflow device and a motor control device for controlling the drive of the motor. An operator opens and closes a variable range of the conveyor width, an opening / closing operation range setting section, a motor control section that issues a control command to the motor control device within the setting range, and a signal from the positioning sensor is detected. However, it has a detection unit that instructs the motor control unit, and a substrate carry-in possible signal generation unit that outputs a signal that enables the substrate to be carried into the preceding process facility when the detection unit detects a signal. And

Further, according to the reflow device with a width correction function of the present invention, the reflow device further comprises an alarm generating section for generating an alarm and outputting the alarm to the outside, and the detecting section instructs the motor control section again when no signal is detected. However, if the signal is still not detected, an alarm is generated in the alarm generation unit.

[0012]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a block diagram showing a reflow device with a width correction function according to the present invention, particularly a control system thereof. Figure 2
FIG. 3 is a block diagram showing the configurations of a reflow device and pre-process equipment.

In FIG. 2, the reflow device 1 comprises a variable side conveyor 3 and a positioning sensor 5 which is provided at the head of the variable side conveyor 3 and detects a positioning object. The variable-side conveyor 4 and the positioning object 6 provided at the rearmost part of the variable-side conveyor 4 and detected by the positioning sensor 5 are provided.

The variable side conveyor 3 of the reflow device is opened and closed by a motor 16 as shown in FIG. The motor 16 is controlled by the motor control device 15, and the motor control device 15 is given a command by the control device 7.

As shown in FIG. 1, the control device 7 instructs an opening / closing operation range setting section 13 in which an operator inputs and sets a variable range of the conveyor width, and a control command to the motor control device 15 within this setting range. Motor control unit 12
And a positioning sensor 5 provided on the variable side conveyor 3
10 for detecting a positioning object detection signal from the
Then, the detection unit 10 cannot detect the positioning object, and the detection unit 10 cannot detect the positioning object and the substrate loading signal generation unit 14 that generates and outputs the substrate loading signal to the front-end equipment 2. In this case, the alarm generating unit 11 generates an alarm and outputs it to the outside.

Next, the operation of this embodiment will be described with reference to FIG. 3 is a flowchart showing the control operation of the control device 7.

The operator previously inputs the opening / closing operation range of the conveyor width of the reflow device 1 into the opening / closing operation range setting section 13 (step S1). The motor control unit 12 reads the opening / closing operation range from the opening / closing operation range setting unit 13 and sends a width variable command to the motor control device 15 (step S2).
At the same time, the motor control unit 12 informs the detection unit 10 that the first variable width command has been issued.

When the motor controller 15 receives the variable width command, it drives the conveyor drive system motor 16 to open and close the variable side conveyor 3.

During the opening / closing operation of the variable-side conveyor 3, the detection sensor 5 provided at the head of the variable-side conveyor 3 of the reflow device 1 is provided at the end of the variable-side conveyor 4 of the pre-process equipment 2. When the positioning object 6 is detected, that is, when the conveyor width of the reflow device matches the conveyor width of the pre-process equipment, the detection sensor sends a detection signal to the control device 7.

The detection unit 10 of the control device 7 detects the detection signal (step S3). When the detection signal is detected, it is determined that the positioning object 6 has been detected by the sensor 5, and the motor control unit 12 is decelerated. -Instructing to generate a stop command (step S4), and also instructing the substrate carry-in enable signal generation unit 14 to generate a substrate carry-in enable signal (step S5).

The motor controller 12 issues a deceleration / stop command to the motor controller 15 according to an instruction from the detector 10. Upon receiving the deceleration / stop command, the motor control device 15 controls the motor 16 to stop the opening / closing operation of the variable side conveyor 3 of the reflow device 1. Thereby, the conveyor width of the reflow device 1 matches the conveyor width of the pre-process equipment 2.

The board carry-in enable signal generating section 14 includes the detecting section 1.
In response to an instruction from 0, a substrate carry-in enable signal is generated and sent to the pre-process equipment 2 to enter an operating state.

If the detection unit 10 does not detect the detection signal from the sensor 5 in step S3, the detection unit 10 instructs the motor control unit 12 to generate a second width variable command (step S6). . As a result, similar to the above-described operation, the variable side conveyor 3 of the reflow device 1 is opened and closed,
During this opening / closing operation, the detection signal from the sensor 5 is supplied to the detection unit 10.
Is detected (step S7), the process proceeds to step S4,
The above operation is performed.

If the detection unit 10 does not detect the detection signal in step S7, the detection unit 10 instructs the alarm generation unit 11 to generate an alarm as an input setting range error or a machine drive system trouble. The alarm generator 11 generates an alarm when it receives support and notifies the operator.

When an alarm occurs, the operator can deal with a mistake in the input set value or a malfunction of the machine (conveyance width drive motor stop accuracy) and a trouble in the conveyor width drive system.

[0026]

As described above, according to the reflow device with a width correction function according to the present invention, the conveyor width can be changed based on the width of the pre-process equipment conveyor, so that the conveyor width setting error of the reflow device can be prevented. At the same time, the stable transfer of the printed circuit board can be performed at all times, so that improvement in quality can be expected.

Further, even if an operator makes an input setting value error, a machine malfunction, or a trouble of the conveyor width drive system, an alarm is finally transmitted to the outside so that the operator does not constantly monitor the conveyor during operation. There is an effect.

[Brief description of drawings]

FIG. 1 is a block diagram showing a control system of a reflow device with a width correction function of the present invention.

FIG. 2 is a block diagram showing a configuration of a reflow device and a pre-process equipment which is an embodiment of a reflow device with a width correction function of the present invention.

FIG. 3 is a flowchart for explaining the operation of the control device.

[Explanation of symbols]

 1 Reflow device 2 Pre-process equipment 3 Reflow device variable side conveyor 4 Pre-process equipment variable side conveyor 5 Positioning sensor 6 Positioning object 7 Control device 10 Detection unit 11 Alarm generation unit 12 Motor control unit 13 Open / close operation range setting unit 14 Board Carry-In Possible Signal Generator 15 Motor Control Device

Claims (3)

[Claims] 1. A positioning object provided at the end of a variable-side conveyor of front-end equipment, a positioning sensor provided at the head of a variable-side conveyor of a reflow device, and detecting the positioning object, A reflow device with a width correction function, comprising: a control device that receives a detection signal from a positioning sensor and controls the opening and closing of the variable side conveyor width of the reflow device. 2. A motor for driving a variable-side conveyor of the reflow device, and a motor controller for controlling driving of the motor, wherein the controller inputs and sets a variable range of the conveyor width by an operator. An opening / closing operation range setting unit, a motor control unit that instructs a control command to the motor control device within the setting range, a detection unit that detects a signal from the positioning sensor and instructs the motor control unit, 2. The reflowable function with width correction function according to claim 1, further comprising: a substrate carry-in signal generation unit that outputs a signal that enables the substrate to be carried into the front-end equipment when the detection unit detects the signal. apparatus. 3. An alarm generator for generating an alarm and outputting the alarm to the outside, wherein the detector re-instructs the motor controller if no signal is detected, and if no signal is still detected, the alarm is generated. The reflow device with a width correction function according to claim 2, wherein an alarm is generated in the section.