JPH1128406A - Viscous material applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save the labor for a height adjustment of a trial shooting station by changing a nozzle height for the case a viscous material is applied on a work and the case this material is applied on the trial shooting station. SOLUTION: A coating nozzle 2 is moved to the trial shooting station 5 on a Y-axis table 7 and a pulse motor is operated by a central control means 10 and a positioning control means 12 in such a manner that the Z-axis stroke value of a Z-axis table 9 is set at the set height meeting the height of the trial shooting station 5 before the coating on the trial shooting station 5. The trial shooting is executed after the movement of this nozzle 2 and whether the coating state is defective or nondefective is decided by a recognition camera 3. Necessary adjustment is carried out. An actual coating mode is then set and the height of the coating nozzle 2 is changed to the height of the actual coating. The need for the height adjustment of the trial shooting station is thus eliminated and operability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a viscous material coating device.

[0002]

2. Description of the Related Art In a process of assembling a printed circuit board (hereinafter referred to as a work), when temporarily fixing components such as ICs,
After applying the adhesive to the work, the parts are mounted on the work.

[0003] A conventional viscous body coating apparatus used for applying the adhesive is configured as shown in FIG. 1 is a cartridge filled with a viscous material to be applied to the work 4,
Reference numeral 2 denotes a viscous material application nozzle formed at the tip of the cartridge 1. The recognition camera 3 is attached to the X-axis table 6. The cartridge 1 is mounted on a Z-axis table 9. The work 4 is set on a Y-axis table 7.

[0004] X-axis table 6, Y-axis table 7, and Z
The axis table 9 is operated by the central control means 10 via the application control means 11 and the positioning control means 12, and can be represented as shown in FIG. The application direction θ of the application nozzle 2 is configured to be freely controllable around the axis of the application nozzle 2 by θ axis driving means 8 (specific configuration is not shown).

[0005] In FIG. 3, the application control means 11 or the positioning control means 12, etc., are operated by a calculation unit 13 in accordance with an instruction of the central control means 10,
A pulse motor X driving the axis table 6, a pulse motor Y driving the Y-axis table 7, a pulse motor Z driving the Z-axis table 9, and a pulse motor θ driving the θ-axis driving means 8 are operated. Specifically, the calculation unit 13 calculates the movement amount of each axis of the motors X, Y, Z, and θ, and drives a necessary motor based on the calculation result.

The central control means 10 is configured as shown in FIG. 4, and a series of steps is executed as follows.
By the movement of each of the X and Y axes, the application nozzle 2 moves to the test hitting station 5 on the Y-axis table 7 and performs the test hitting to the test hitting station 5 in Step # 1. In step # 3, the quality of the application state is determined by the recognition camera 3, and if not, the application condition is adjusted in step # 4, and the process returns to step # 1 to perform another trial shot. If the pass / fail judgment in step # 3 is good, the actual application mode is set in step # 5, and application on the work 4 is executed in step # 6. By repeating the above series of operations, the application of the adhesive to each position of the work 4 is executed.

[0007]

In such a viscous material coating apparatus, in order to accurately adjust the coating conditions, the coating on the test hitting station 5, which is the basis of the adjustment, and the work 4
It is indispensable that the above application is in the same state. Conventionally, the value of the Z-axis stroke from the Z-axis origin is one, and is fixed in accordance with the case of applying on the work 4. Although a height adjustment mechanism is provided in the test hitting station in order to bring the above-mentioned application and the application on the work closer to the same state, there is a problem that the height adjustment takes time and effort.

It is an object of the present invention to provide a viscous material coating apparatus which eliminates the need for height adjustment at the test-punching station to make the coating on the test-punching station 5 and the coating on the work 4 close to the same state. And

[0009]

The viscous body coating apparatus of the present invention is configured to change the height of a coating nozzle between a case of coating on a work and a case of coating on a test hitting station.

According to the present invention, it is possible to omit the work of adjusting the height at the test-punching station that makes the application to the test-punching station and the application to the work close to the same state.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A viscous body coating apparatus according to the present invention is prepared separately from the work before the actual coating mode in which the viscous body is applied to a coating position on the work by a coating nozzle. A viscous body coating device that performs test hitting with the coating nozzle to a test hitting station having a different height, and changes the height of the coating nozzle between when applying on a work and when applying on a test hitting station. Height changing means is provided.

According to this configuration, when the coating is performed on the test hitting station, the coating nozzle is moved to a preset height in accordance with this case, and when the coating is performed on the work, the coating nozzle is controlled in advance according to this case. The application nozzle is moved to the set height.

An embodiment of the present invention will be described below with reference to FIG. Since the hardware itself of the viscous body coating apparatus is the same as that of the conventional example shown in FIG. 2, the description will be given with the same reference numerals as in FIG.

In the viscous body coating apparatus according to the present invention, the central control means 10 composed of a microcomputer for controlling the pulse motor Z for driving the Z-axis table 9 has a configuration shown in FIG.
Is different from the conventional example shown in FIG.

Specifically, the height of the test hitting station 5 is lower than the application surface of the work 4. The central control means 10 of this embodiment is configured as shown in FIG. 1, and a series of steps is executed as follows.

The movement of the X and Y axes causes the application nozzle 2
Moves to the test hitting station 5 on the Y-axis table 7, executes step # 0, and sets the value of the Z-axis stroke in advance according to the height of the test hitting station 5 before executing step # 1. The pulse motor Z is driven to the set height.

When the movement of the application nozzle 2 in step # 0 is completed, a test hitting to the test hitting station 5 is carried out in step # 1, and whether the coating state is good or bad by the recognition camera 3 in step # 2 and step # 3. Is performed, and if the determination is not good, the application condition is adjusted in step # 4, and the process returns to step # 1 to execute the trial shot again. If the pass / fail judgment in step # 3 is good, the actual application mode is set in step # 5 and step # 6 is performed prior to step # 6.
Execute (6-1).

In step # (6-1), the pulse motor Z is operated to set the value of the Z-axis stroke to a preset height in accordance with the height of the application surface of the work 4. Step # (6-
When the movement of the application nozzle 2 in 1) is completed, step #
At 6, the application of the adhesive to the work 4 is performed.

As described above, in step # 0, the height of the application nozzle 2 is changed to an appropriate set value in step # 0.
In step 6, since the height of the application nozzle 2 is changed to an appropriate set value in step # (6-1), the height of the application nozzle 2 is different between the case of applying on the work and the case of applying on the test hitting station. However, as compared with a certain conventional viscous body coating apparatus, the work of adjusting the height of the test hitting station, which is required in the conventional apparatus, is eliminated, and the operability is good.

In the embodiment, the part configured to execute step # 0 at step # 1 and execute step # (6-1) at step # 6 is a means for changing the height of the claims. Is equivalent to

[0021]

As described above, according to the present invention, prior to the actual application mode in which the application nozzle applies the viscous material to the application position on the work, the application surface of the work which is prepared separately from the work and is higher than the application surface of the work. Is a viscous body coating device that performs a test hit with the coating nozzle to a different test hitting station,
Since the height changing means for changing the height of the coating nozzle is provided between the case where the coating is performed on the work and the case where the coating is performed on the test hitting station, the conventional apparatus is necessary to obtain a good coating result. This eliminates the need for adjusting the height of the test beating station, and can provide a good coating result with only a simple operation.

[Brief description of the drawings]

FIG. 1 is a flowchart of a central control unit according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a schematic configuration of a viscous body coating device.

FIG. 3 is an explanatory view of FIG. 2;

FIG. 4 is a flowchart of a conventional viscous body coating apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cartridge 2 Application nozzle 3 Recognition camera 4 Work 5 Test hitting station 6 X-axis table 7 Y-axis table 9 Z-axis table 10 Central control means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Ken Sasaki 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. 72) Inventor Jou Inaba 1006 Kazuma Kadoma, Kadoma City, Osaka Inside Matsushita Electric Industrial Co., Ltd.

Claims (1)

[Claims] 1. Prior to an actual application mode of applying a viscous material to an application position on a work by an application nozzle, the application nozzle is provided to a test strike station prepared separately from the work and having a height different from the application surface of the work. A viscous body coating apparatus that performs test beating with a viscous body coating apparatus provided with a height changing unit that changes the height of the coating nozzle when coating on a work and when coating on a test beating station. apparatus.