JPH04196287A - Coating apparatus - Google Patents

Abstract

PURPOSE:To improve a production control and to enhance an operating efficiency by selecting a stored program, and performing a coating work according to it. CONSTITUTION:A controller 30 continues a coating operation by a nozzle designated according to a first coating program stored in a memory 29 instead of its using nozzle based on a control content in which the residue of coating agent in a syringe of the nozzle using at present by a control unit 20 reaches a predetermined amount. The controller 30 stops the coating operation according to a second coating program stored in the memory 29 based on the control content. Thus, a production control is facilitated, the coating operation can be continuously performed, and the program is selectable, and operability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a coating device that uses a nozzle to coat a coating agent in a syringe in order to fix chip-shaped electronic components onto a printed circuit board.

(b) Prior Art A coating device of this type is disclosed in Japanese Patent Application Laid-Open No. 64-57793.

This system detects the amount of adhesive remaining in the tank, notifies the operator when the remaining amount reaches a predetermined level, and then enables operation for a predetermined number of applications or a predetermined application operation time. If the adhesive was not replenished, the equipment would stop.

Therefore, there was a heavy reliance on the workers. In addition, work efficiency was poor due to equipment stoppage.

(c) Problems to be solved by the invention Accordingly, it is to improve production management and work efficiency.

(d) Means for Solving the Problems Therefore, the present invention provides a coating device that uses each nozzle to apply the coating agent in each syringe in order to fix chip-shaped electronic components on a printed circuit board. a management device that manages the amount of coating agent remaining in the syringe; and a first application operation that continues application work with another nozzle based on the management content that the remaining amount has reached a predetermined amount by the management device. a storage device for storing the program and a second coating operation program for stopping the coating operation; a selection device for selecting the program stored in the storage device; and a coating operation according to the program completely selected by the selection device. A control device is provided.

(f) Function Based on the above configuration, the control device replaces the nozzle currently in use based on the management device's management that the amount of coating agent remaining in the syringe of the nozzle currently in use has reached a predetermined amount. The coating operation is continued using the designated nozzle according to the first coating operation program stored in the storage device.

Further, the control device stops the coating operation according to the second coating operation program stored in the storage device based on the management contents.

(f) Example Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

(1) is a printed circuit board on which adhesive is applied as a coating agent so that a chip component (not shown) can be mounted on the Y table (3) which is driven by the X table motor (2) and moves in the X direction. It is placed. (4) is an X table that is driven by the X table motor (5) and moves in the X direction, and the X table (3>) is the X table (4).
Move in the X direction on the top.

Therefore, the printed circuit board (1) can move in the xYX directions.

(6) is an adhesive application unit that applies adhesive to the printed circuit board (1), and applies adhesive to the printed circuit board (1). In this embodiment, there are four. The adhesive application unit (6) is supported by a cam lever <9) via a roller receiver (7) and a roller (8). (11) is a cam whose arc diameter changes depending on the rotation angle, and holds the cam lever 9) via a cam follower 12 installed on the cam lever (9).

(13) is a nozzle vertical drive unit such as a motor that rotates the cam (11), and when the cam (11) is rotated by the drive unit (13), it is installed at the other end of the roller (8) of the cam lever (9). The cam lever (9) is rotated using the fulcrum shaft (14)
) swings up and down. The adhesive application unit (6) moves up and down by the up and down swing of the cam lever (9). The adhesive application unit (6) will be explained based on FIG. 2.

(16) is a nozzle that discharges adhesive and applies the adhesive onto the printed circuit board (1), and the adhesive application unit (6)
) are prepared with nozzles (16) having different discharge diameters. (17) is a syringe that can be connected above the nozzle (16) and stores the adhesive. (18> is a syringe that can be connected above the nozzle (16).
) This is an air tube for sending compressed air to discharge adhesive. Note that the nozzle (16) is rotated by a rotation mechanism (not shown).

(20) is a magnetic proximity sensor that detects when the amount of adhesive in each syringe (17) has reached a certain level and warns of the remaining amount. The remaining amount of adhesive is detected by detecting the position of each float (21>) in which the adhesive is embedded.

(22) is an operation unit having a numeric keypad (23> and cursor keys <24), and a start key (22) for starting the coating operation.
25) or the screen selection key (27) of the monitor TV (26).
〉 is also provided.

(28) is a RAM as a storage device that stores NC data regarding the coating position, the type of nozzle (16) to be used, etc. according to the coating order as shown in FIG.

(29) means that when the remaining amount reaches a predetermined amount, the other nozzle (
The ROM serves as a storage device that stores a first coating operation program that continues the coating operation in step 16) and a second coating operation program that stops the coating operation in the above case.

30) is a CPU serving as a control device that performs overall control of the coating device.

(31) is an interface, which is connected to a group of proximity sensors (20), a warning light (32), a coating end light (33), and the like.

Next, a description will be given of an operation for setting the number of times of adhesive application so that the adhesive application operation can be performed a predetermined number of times after the adhesive is exhausted based on the detection by the proximity sensor <20>.

First, when the screen selection key (27) is pressed, a screen as shown in FIG. 4 showing the data setting mode is displayed on the monitor television (26). And the cursor key (24)
Use rEMPTY 5 to move the cursor (not shown)
Move the TOP FUNCTION (automatic stop function after notice of remaining power) to the "O" position, which indicates "No function 1", press the number key (23) of "rl", and press the number key (23) for Function 1.
Set to . This set data is stored in the CPU (3
0) to write to a predetermined area of the RAM (28). Next, in order to set the number of times of application for a given nozzle (16) using the given cursor key (24), after specifying that nozzle, the setting can be made using any number key <23). According to FIG. 5, each nozzle is set so that the coating operation can be performed 1.234 times.

The warning light (32) is a proximity sensor that indicates when the remaining amount of adhesive in each syringe (17) has decreased to a predetermined amount (20).
When detected, it is controlled by the CPU (30) to turn on via the interface (31).
The coating end light (33) is controlled to turn on when coating has been completed the preset number of times.

In this embodiment, each proximity sensor (20) detects when the remaining amount of adhesive in the syringe (17) has decreased to a predetermined amount f-;
Although the setting can be made so that coating can be performed an arbitrary number of times, it is also possible to adopt a configuration in which the operating time of the coating operation can be set arbitrarily. At that time, the unit of the number set using the numeric keypad (23) is seconds.

Then, the CPU (30) subtracts 1 from the set number of times for each coating operation from the time when the advance notice signal from the proximity sensor (20) via the interface screen 31) is input, and the content after the subtraction is The data is stored in a predetermined area of the RAM (28), and the monitor television (26) is controlled to display the subtracted content on a screen as shown in FIG. 4 by operating the selection key (27). When the content after the subtraction becomes 10'', that is, when the coating operation has been performed a set number of times, the coating completion lamp <32> is turned on.

Next, when the adhesive in the syringe (17) of a given nozzle (16) runs out, the next application is performed using another nozzle (16) (hereinafter referred to as "alternate function").
The setting operation will be explained.

As mentioned above, press the screen selection key (27>) to select the sixth
Set the data setting mode to Monitor TV 2 as shown in the figure.
6).

First, move the cursor to 'ALTERNATE FUN C
Move T I ON J (alternate function) to the 10" position, which indicates no function 1, and press the numeric keypad for 1 (
23) and set it to "Function 1".

Next, in 'ALTN MODEJ (alternate mode), conditions are set for alternating that nozzle (16). That is, if the nozzle (16) does not have an alternating mode, rOyo can be set, but if the proximity sensor (20) is to perform an alternating operation when the remaining amount is exhausted, "1." is set. ,
The number of applications after sensor (20) detection is the specified number of times (1, 23
If you want to perform the alternation when 4 times (set to 4 times) occur, use r2. is set.

"NEXT ALTNJ (next nozzle designation by alternate) indicates that if the nozzle (16) has an alternate function, another nozzle (
16> to perform the coating work, use the other nozzle (16) to perform the coating work.
) number is set.

Here, it is assumed that various settings have been made as shown in FIG. In other words, the nozzle (16) of N0ZZLEI does not perform alternation ('ALTN MOD E J has been set to 101. Therefore, 1NEXT ALT
Nozzle designation is not specified for N-Yo. ). N0ZZL
The E2 nozzle (16) performs the alternator 1 when the warning that the remaining amount runs out is given (it has been set to "ALTN MODE 11"), and the N0ZZLE3 nozzle (16) performs the coating work instead. ) is specified (
'NEXTAL T N J to r3' has been set. ). The nozzle (16) of N0ZZLE3 performs alternating when the set number of times after sensor detection is completed (
'ALTN MODE 12' has been set.

), the nozzle (16) of N0ZZLE4 is specified ('NEXT ALTN ni 14' has been set). And, N0ZZL4 does not perform alternation. In addition, ' CON D I TR ON J (status mode) is set to 1- if there is no alternate function.
” will be displayed, and if you have already performed the alternation, “
*, is displayed, and for conditions other than these, nothing can be displayed. In addition, the discharge diameter of the nozzle (16) of N0ZZLE4 and 3 is the same, and the nozzle (16) of N0ZZLE4 is the same.
) shall be provided as a backup. Also, N
Although the discharge diameters of the nozzles (16) of 0ZZLE 2 and 3 are different, the amount of application can be made the same by controlling the discharge time and the pressure applied to the syringe (17).

The operation will be explained below.

First, when the start key (25) of the operation section (22) is pressed, the CPU (30) starts the coating operation based on the NC data regarding the coating operation shown in FIG.

In step (Ml), which is the first in the coating order, 'NI
J (NOZZLEI) + 7) / pull (16) can be selected, and the rotation of the X table motor (5) and Y table motor (2) allows the X table (4> and Y table pull (3) to be A predetermined portion of the printed circuit board (1), which is moved in the X direction and the Y direction and placed on the Y table (3), is positioned below the nozzle (16). That is, in step (Ml), it is the position of coordinates (Xi, Yl).

Next, when the nozzle vertical drive unit (13) such as a motor is rotated, the cam (11) is rotated, and the cam follower (12) is rotated.
The cam lever (9), which was located above via the fulcrum shaft (
14) as a fulcrum. Cam lever <9)
When the adhesive application unit (6) is lowered, the desired adhesive application unit (6>) is lowered via the roller (8) and roller receiver (7).At this time, a control (not shown) is performed to prevent other adhesive application units (6) from being lowered. The device prevents its descent.

As the adhesive application unit (6) descends, the nozzle (16)
also descends, and the tip of the nozzle (16) touches the printed circuit board (1).
comes into contact with. Here, the adhesive is applied to the coordinate (Xi, Yl) position on the printed circuit board <1), which is discharged by compressed air sent in advance from the air tube (18).

When the cam (11) is further rotated by the nozzle vertical drive unit (13), the cam lever (9) swings upward, the adhesive application unit (6) rises, and the nozzle <16) ) and rise.

Next, the X table (4>) and the Y table (3) are moved to position other parts of the printed circuit board (1) below the nozzle (16), and the coating operation from step (M2) onwards is performed. In this manner, the coating operation on the printed circuit board (1) continues.

The coating operation is performed as described above, and the alternate machine will be explained below.

First, N0ZZLE1 (7)/Suru (16) is 'ALT
Since rO is set in N MODE, alternate firing is not performed, and the syringe (1) of the nozzle (16) is
When the proximity sensor 20) detects that the remaining amount of adhesive in the interface <3 has decreased to a predetermined amount,
The CPU (30) that receives the warning signal via 1) confirms that there is an automatic stop function when the remaining battery runs out, and turns on the warning light (
32) is controlled to turn on.

At this time, the CPU (30) also causes the monitor television (26) to display "1*" on the line corresponding to the 7 nozzles (16), as shown in FIG. 5, and displays the warning light (
32) and a monitor television (26) to notify that the remaining amount has reached a predetermined amount.

After that, there will be more remaining power, so press the numeric keypad (23)
Application can be performed a set number of times. At this time, as shown in FIG. 5, 1 is subtracted for each coating operation from 1,234 times, which is the set number of times of the coating nozzle (6).

The content after the subtraction is stored in the RAM (28) and displayed on the monitor television (26). In this way, when the coating operation is performed the number of times the predetermined diameter is set,
The CPU (30) prevents the application operation from being performed unless the adhesive is refilled in the syringe (17) to prevent so-called blank firing, and also lights up the application end light (33) to notify the user of this fact. inform.

Of course, during this notice, the user can replenish the adhesive in the syringe (17) and also return it to the initial state by operating a key. In other words, the user should be able to replenish the product between the time the user receives this notice and the time the coating operation is stopped.

Next, install the syringe (1) of the nozzle (16) of N0ZZLE2.
7) When the proximity sensor (20) detects that the remaining amount of adhesive has decreased to a predetermined amount, the CPU (30) sets ``1. In other words, when performing a coating operation with the nozzle (16) of the N0ZZLE2 shown in Fig. 3, the discharge time and Change the pressure applied to the syringe (17) to make N0ZZLE2
The coating operation is performed so that the coating amount is the same as that of the nozzle (16). Konodoki,' CON D I T I
ON J (7) N OZ Z L Display "*" on the line of the nozzle (16) of E2. This shows that the nozzle (16) of the N0ZZLE2 has been alternated. If the warning light (
32) is not lit. However, 'NEXT ALTN
If the nozzle 16〉 to be alternated to J is not specified, the warning light (32〉) will remain lit.Then, the nozzle (32〉) of the alternated N0ZZLE3 will turn on.
16), the CPU (30) turns on the warning light (32) and performs a predetermined operation based on the remaining capacity function.

Next, if a notice signal is sent to the nozzle (16) of N0ZZLE3, the CPU (30) lt'ALTNM O
Check what is set in D E J, and in this case, perform alternation after the sensor detection diameter setting number of times is completed.13
．． is set, the coating is continued for the set number of times (1,234 times) without turning on the warning light (32). When the coating operation is performed the number of times the predetermined diameter is set in this way, the CPU (30)
'NEXT ALTNJ instead of nozzle (16)
” Perform the coating operation with the nozzle (16) of N07ZLE4 designated as 'C'.
” If the next nozzle (16) to be alternated is not specified, the device will be stopped as an error.

Further, no alternation is performed in the nozzle (16>) of NOZZLE4.

In this example, N0ZZLE4 is used as a spare nozzle (1
6), but instead of providing a special spare nozzle (16), all four nozzles 16> are used and depending on the remaining amount, which nozzle (16>) is used in place of the other nozzle (16) is used. The nozzle (16) may be changed to continue the coating operation.

In addition, although a proximity sensor (20) is used for advance notice, it is not limited to this, and a counter can be used to count the number of applications,
The operating time is measured using a timer and the syringe (17
) The remaining amount of adhesive may be determined.

Further, the present invention is effective not only for nozzles having the same diameter but also for nozzles having different diameters. In this case, since the nozzle diameters naturally differ, there will be variations in the amount of application under the same conditions (for example, pressurization time, pressurization force, etc.). Therefore, for each nozzle (16), the above conditions are stored in advance in the RAM (
28) in the form of a correspondence table, so that even if the nozzle (16) used is changed, the same amount of application can be achieved.

(G) Effects of the Invention As described above, according to the present invention, production control becomes easier and coating operations can be performed continuously. In addition, it is now possible to select a coating operation program, making it easier to use.

[Brief explanation of the drawing]

1 and 2 are a configuration circuit diagram and a perspective view of the electronic component automatic mounting apparatus of the present invention, FIG. 3 is a diagram showing NC data regarding the coating operation, and FIGS. 4 to 7 are diagrams showing the screen of a monitor television. FIG. (16)... Nozzle b, (17)-Syringe, (
20>...Proximity sensor, (28)...RAM,
(30)...CPU, (32)...Warning light.

Claims (1)

[Claims] (1) In a coating device that uses each nozzle to apply the coating agent in each syringe in order to fix chip-shaped electronic components on a printed circuit board, the remaining amount of coating agent in the syringe of the nozzle in use is managed. a management device; a first application operation program that continues the application operation with another nozzle based on the management content of the remaining amount reaching a predetermined amount by the management device; and a second application operation that stops the application operation. A coating device comprising: a storage device that stores a program; a selection device that selects the program stored in the storage device; and a control device that performs a coating operation according to the program selected by the selection device. Device.