JP2000233147A - Masking tape sticking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability and stabilize working quality by making a line automatic all through the feeding of a printed-wiring board, sticking of a masking tape and ejection of the printed-wiring board in the case the mask tape is stuck on a print contact section of the printed-wiring board. SOLUTION: A masking tape is stuck on a printed-wiring board fed from a feed section 101 to a delivery section 104 by a sticking section 103 in a masking tape sticking device 1, and the masking tape is cut off by a tape cutting section 105. The sticking state of the masking tape is monitored by a shaft monitoring section 107. Also the printed-wiring board is drawn in onto a sticking completion position of the masking tape by a drawing-in section 106, and the printed-wiring board on the sticking completion position is moved to an ejection section 102 by a robot section 108. The directions of a mounting face and a plated face of the printed-wiring board are turned over on a turnover section 110, and the whole of the sticking work of the masking tape is controlled by a control section 109.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a masking tape attaching device for attaching a masking tape to a printed contact portion of a printed wiring board.
It automates the process from supplying printed wiring boards, pasting masking tape, and discharging printed wiring boards.

[0002]

2. Description of the Related Art A printed circuit board is formed by stamping or pattern cutting a printed wiring board, mounting components, and immersing the board in a solder bath. In order to prevent solder from being attached to the printed contact portion of the printed wiring board when immersed in a solder bath, a masking tape is attached to the printed contact portion. The work of attaching the masking tape to the printed contact portion of the printed wiring board is performed manually.

FIG. 7 is an explanatory view of a conventional masking tape attaching operation. The printed wiring board 71 is provided with a printed contact portion 72 for connecting a pattern of the printed wiring board and a connector. In order to prevent the printed contact portion 72 from being soldered, a masking tape 73 is stuck on the entire printed contact portion, and the portions indicated by arrows A and B are cut with a cutter, and an excess portion is cut off.

[0004]

However, as shown in FIG. 7, the masking tape attaching operation is a manual operation.
Due to the limited processing capacity, the planned number of printed wiring boards cannot be manufactured, or the masking tape may be displaced or torn off, making it impossible to manufacture stable quality printed circuit boards. There was a problem that

[0005]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-described problems, and has been made in consideration of the above-described problems. The supply section where the printed wiring board before work is placed, the discharge section where the printed wiring board is placed after applying the masking tape, and the sticking section where the masking tape is held and the masking tape is attached to the printed wiring board that is sent And, a sending unit that sends out the printed wiring board to the attaching unit, a tape cutting unit that separates the masking tape, a retracting unit that draws the printed wiring board on which the masking tape is attached to an attaching end position of the attaching operation of the masking tape, Move the printed wiring board in the supply section to the sticking start position of the masking tape sticking operation. To, and by providing a robot unit that moves the printed wiring board at the sticking end position to the discharging unit, and a control unit that controls the entire masking tape sticking operation, from supplying the printed wiring board to sticking the masking tape, It is also possible to automate the process up to the discharge of the printed wiring board.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a masking tape attaching apparatus for attaching a masking tape to a printed contact portion of a printed wiring board, a supply section on which the printed wiring board is placed before the masking tape is attached, and a masking tape after the masking tape is attached. A discharge section where the printed wiring board is placed, a sticking section that holds the masking tape and attaches the masking tape to the incoming printed wiring board, a sending section that sends the printed wiring board to the sticking section, and a tape that separates the masking tape The cut section, the retracting section that draws the printed wiring board on which the masking tape is pasted to the pasting end position of the masking tape pasting work, and the printed wiring board in the supply section that moves to the pasting start position of the masking tape pasting work , And the printed wiring board at the end position By providing the robot unit, and a control unit for controlling the entire patch work of masking tape,
From the supply of the printed wiring board to the application of the masking tape and the ejection of the printed wiring board, the workability can be improved and the work quality can be stabilized.

Further, when the printed wiring board is moved from the supply section to the sticking start position of the masking tape sticking operation, the next printed wiring board is arranged behind the printed contact section of the preceding printed wiring board. The beginning and end of the masking tape can be made the same, the masking tape can be cut to one printed wiring board only once, and the working time can be reduced.

In addition, a reversing section for reversing the orientation of the mounting surface and the solder surface of the printed wiring board is provided so that the printed wiring board is moved from the supply section to a sticking start position for sticking a masking tape, and that the masking tape is stuck. When moving the printed wiring board at the end position of the work to the discharge section,
By inverting the printed wiring board according to the designation, it is not necessary to consider the work surface of the printed wiring board in the steps before and after the attaching operation, and the steps before and after can be easily changed.

Further, by providing a shift monitoring unit for monitoring the state of application of the masking tape and confirming that there is no shift, it is possible to prevent a shift in the masking tape application position and to manufacture a stable quality printed circuit board. Becomes possible.

Also, a center axis is provided on the masking tape,
In addition, by providing the bearing mechanism and holding the masking tape, it is possible to easily and quickly replace the masking tape.

Further, by providing a guide mechanism for setting the masking tape before and after the sticking portion, it is possible to easily and accurately replace the masking tape.

[0012]

FIG. 1 is a block diagram showing an embodiment of a masking tape sticking apparatus according to the present invention. In the drawing, reference numeral 1 denotes a masking tape sticking device, and the masking tape sticking device 1 includes a supply unit 101 on which a printed wiring board is placed before the masking tape is attached, and a discharge unit on which the printed wiring board is placed after the masking tape is attached. Unit 102, a sticking unit 103 that holds the masking tape and sticks the masking tape to the printed wiring board to be sent, a sending unit 104 that sends the printed wiring board to the sticking unit 103, and a tape cutting unit 105 that separates the masking tape A displacement monitoring unit 107 that monitors the state of application of the masking tape and confirms that there is no deviation, and a retraction unit 106 that draws the printed wiring board on which the masking tape has been applied to the end position where the masking tape is applied. Attaching a masking tape to the printed wiring board in the supply unit 101 A robot unit 108 which moves the moves to the joining start position, and the printed wiring board in the sticking end position to the discharge unit 102,
A reversing unit 110 for reversing the orientation of the mounting surface and the solder surface of the printed wiring board, and a control unit 109 for controlling the entire operation of attaching the masking tape are provided.

FIG. 2 shows an embodiment of the reversing unit. FIG.
2A is a top view of the reversing unit, and FIG. 2B is a side view of the reversing unit. The reversing unit 110 supports a printed wiring board, and includes a rotatable support unit 21, a support unit 22, a rotary cylinder 23 for rotating the support unit 22, and a rotary cylinder 23.
And a moving table 25 for moving the rail 24 and the moving table 2
5 to move the cylinder 26.

When the working surface of the printed wiring board in the masking tape attaching operation and the working surface of the printed wiring board in the steps before and after the attaching operation are different, the reversing unit 110 removes the printed wiring board from the supplying unit. When the printed wiring board is moved to the sticking start position in the sticking operation and when the printed wiring board at the sticking end position in the sticking operation of the masking tape is moved to the discharge section, the printed wiring board is used to reverse the printed wiring board as specified in advance.

FIG. 3 shows an embodiment of the sending section and the retracting section. FIG. 3A is a top view of the sending section and the retracting section, and FIG. 3B is a side view of the sending section and the retracting section. The sending unit 104 includes a cylinder 31 that raises and lowers four pins, and includes a holding unit 32 that suppresses the lateral movement of the printed wiring board, and a cylinder 33 that moves the holding unit 32 in the direction of the attaching unit 103. ing.

The retracting portion 106 includes a holding portion 35 for holding the printed wiring board by the cylinder 34 and a holding portion 3.
5 and a cylinder 36 for moving the printed wiring board to the sticking end position.

FIG. 4 shows an embodiment of the tape holding section and the guide section. The masking tape 41 is provided with a center axis, and the tape holding section 4 is held so as to hold both sides of the center axis.
2 is constituted. In addition, the guide part is a sticking roller 4
A guide roller 43 and a guide roller 44 are provided before and after 5, the width of the guide rollers 43 and 44 is the same as the width of the masking tape, and the guide rollers 43 and 44 and the sticking roller are provided on a straight line. This makes it possible to easily and accurately replace the masking tape.

FIG. 5 shows an embodiment of the shift monitor.
The masking tape 52 is attached to the printed wiring board so as to cover the printed contact portion 51 from the end of the printed wiring board by the attaching portion. The shift monitoring unit 107 includes two sets of light-emitting devices 54 and light-receiving devices 5 provided on both sides of the connector insertion groove 53 to which the masking tape 52 is attached so that light can pass therethrough.
5 is comprised. When the masking tape 52 is applied so as to block between the light emitting device 54 and the light receiving device 55,
The sticking abnormality is notified to the control unit, and the control unit notifies the operator of the abnormality.

FIG. 6 shows a processing flowchart of one embodiment of the control unit. Hereinafter, the operation will be described according to this flow.

Step S601: It is determined whether there is a printed wiring board in the supply unit. If there is a printed wiring board, the process proceeds to step S602; otherwise, the process ends.

Step S602: When the printed wiring board is moved from the supply section to the sticking start position of the masking tape sticking operation, it is determined whether or not there is a reversal instruction. If there is a reversal instruction, the process proceeds to step S604; otherwise, the process proceeds to step S603.

Step S603: The printed wiring board is arranged at a sticking start position of a masking tape sticking operation from the supply unit. The sticking start position is a position where the next printed wiring board is arranged behind the printed contact portion of the preceding printed wiring board. Then, the process proceeds to step S605.

Step S604: The printed wiring board is moved from the supply section to the reversing section, and after reversing at the reversing section, it is arranged at a sticking start position of a masking tape sticking operation. The sticking start position is a position where the next printed wiring board is arranged behind the printed contact portion of the preceding printed wiring board.

Step S605: It is determined whether the operation of applying the masking tape is first. If first, step S60
The process advances to step S607 if it is not the first time.

Step S606: The printed wiring board at the sticking start position of the masking tape sticking operation is sent to the sticking section. Then, the process returns to step S601.

Step S607: The printed wiring board at the sticking start position of the masking tape sticking operation is sent to the sticking section. Thereby, the masking tape is attached to the printed wiring board in front of the printed wiring board sent out by the attaching section.

Step S608: The masking tape is cut off by the tape cutting section.

Step S609: It is confirmed by the shift monitor that there is no shift in the masking tape applied.

Step S610: The printed wiring board is drawn in by the draw-in section to the sticking end position of the masking tape sticking operation.

Step S611: When the printed wiring board is moved from the position where the masking tape is pasted to the discharge section in the pasting operation of the masking tape, it is determined whether or not there is a reversal instruction. If there is a reversal instruction, the process proceeds to step S613; otherwise, the process proceeds to step S612.

Step S612: The printed wiring board is placed in the discharge section from the position where the masking tape is attached in the attaching operation. Then, the process returns to step S601.

Step S613: The printed wiring board is moved from the pasting end position of the masking tape attaching operation to the reversing section, and after reversing by the reversing section, is placed in the discharge section. Then, the process returns to step S601.

[0033]

The present invention is embodied in the form described above, and has the following effects.

In the operation of attaching the masking tape to the printed contact portion of the printed wiring board, the workability of the supply of the printed wiring board, the application of the masking tape, and the ejection of the printed wiring board can be greatly improved by automating the operations. And work quality can be stabilized.

The length from the back of the printed contact portion of the printed wiring board to the end of the printed wiring board is
The masking tape is not wasted. Further, the beginning and end of the masking tape can be made the same, the masking tape can be cut on one printed wiring board at one time, and the working time can be shortened.

Further, it is not necessary to consider the work surface of the printed wiring board in the steps before and after the masking tape attaching operation, and the steps before and after can be easily changed. In addition, it is possible to prevent a displacement of a masking tape attaching position, and it is possible to manufacture a stable quality printed circuit board. Further, it is possible to easily and quickly replace the masking tape.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of one embodiment of a masking tape sticking device of the present invention.

FIG. 2 is a diagram illustrating an embodiment of a reversing unit;

FIG. 3 is a diagram illustrating an embodiment of a sending unit and a retracting unit;

FIG. 4 is a diagram illustrating an example of a tape holding unit and a guide unit;

FIG. 5 is a diagram illustrating an example of a shift monitoring unit.

FIG. 6 is a processing flowchart of an embodiment of a control unit.

FIG. 7 is an explanatory diagram of a conventional masking tape attaching operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Masking tape sticking apparatus 101 Supply part 102 Ejection part 103 Sticking part 104 Sending part 105 Tape cutting part 106 Retraction part 107 Displacement monitoring part 108 Robot part 109 Control part 110 Inversion part

Continuation of the front page F term (reference) 3F062 AA01 AB04 BA08 BB10 BC08 BE02 BF12 BG07 EA02 4D073 AA01 BB10 DB03 DB14 DB24 DB32 4D075 AB03 AD06 CA50 DA06 DB31 DC19 EA15 EB02 5E319 CC23 CD06

Claims (6)

[Claims] 1. A masking tape sticking apparatus for sticking a masking tape to a printed contact portion of a printed wiring board, comprising: a supply unit 101 on which a printed wiring board is placed before the masking tape is attached; and a print after the masking tape is attached. A discharge unit 102 on which the wiring board is placed; a sticking unit 103 that holds the masking tape and sticks the masking tape to the sent printed wiring board; a sending unit 104 that sends the printed wiring board to the sticking unit 103; A tape cutting section 105 for separating the printed wiring board, a drawing-in section 106 for drawing the printed wiring board on which the masking tape has been pasted into the pasting end position of the masking tape pasting work, and a pasting of the printed wiring board in the supply section for pasting the masking tape. Move to start position and paste end position A masking tape attaching apparatus, comprising: a robot unit 108 for moving a printed wiring board to an ejecting unit; and a control unit 109 for controlling the entire masking tape attaching operation. 2. The method according to claim 1, wherein when the printed wiring board is moved from the supply section to a sticking start position of a masking tape attaching operation, the next printed wiring board is arranged behind the printed contact section of the preceding printed wiring board. The masking tape sticking device according to claim 1, wherein 3. A reversing unit 110 for reversing the orientation of the soldering surface and the mounting surface of the printed wiring board, when the printed wiring board is moved from a supply unit to a sticking start position of a masking tape sticking operation, and 3. The masking tape sticking apparatus according to claim 1, wherein when the printed wiring board at the sticking end position in the sticking operation is moved to the discharge section, the printed wiring board is turned over by designation. 4. The masking tape sticking apparatus according to claim 1, further comprising a shift monitoring unit for monitoring a state of sticking of the masking tape and confirming that there is no shift. 5. The masking tape sticking device according to claim 1, wherein the masking tape is provided with a central shaft and a bearing mechanism is provided to hold the masking tape. 6. The masking tape sticking device according to claim 1, further comprising a guide mechanism for setting a masking tape before and after the sticking portion.