JPS5854221Y2 - Coating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coating device, and more particularly to an improvement in a coating roller of a coating device for coating metal paste, resin, etc. used for electrodes or exteriors of electronic components.

As shown in FIG. 1, a conventional coating roller of this type includes a coating roller 1 having a ring-shaped groove 1a in the center of the peripheral edge of the coating roller 1, and a fixed blade that keeps the coating material to a constant thickness. 2, a part of the peripheral part is dipped in the coating agent 3, and then rotated in the direction of the arrow to apply the grooved coating by pressing the fixed blade 2 with the coating agent 3 attached to the coating roller 1 against the coating roller 1. This configuration is such that the coating agent 3 adhering to areas other than the groove portion 1a of the roller 1 is scraped off, leaving the coating agent 3 only in the groove portion 1a.

The coating agent 3 adhering to the groove 1a of the coating roller 1 is transferred from the groove 1a of the coating roller 1 as an electrode of an electronic component 4 as shown in FIGS. 2 and 3 as an example.

However, in the structure of the conventional fixed blade 2, as shown in FIG.
It becomes concave due to its viscosity and surface tension.

If a gap is provided between the blade 3 and the coating roller 1 in order to make the coating agent 3 that adheres in this concave state approximate to a flat condition, the coating agent 3 will be distributed around the area other than the groove 1a of the coating roller 1 as shown in FIG. It also gets stuck.

Therefore, there is a problem that the coating agent 3 cannot be stored only in the groove portion.

An object of the present invention is to provide a coating device that overcomes the above-mentioned drawbacks of the prior art.

According to the present invention, a coating device includes a blade that immerses a part of the peripheral edge of the coating roller in a coating agent and adjusts the coating agent attached to the peripheral edge to a constant thickness by rotating the coating roller. There is obtained a coating device characterized in that a fixed blade having a recess corresponding to the groove of the grooved application roller at the peripheral edge is provided with a movable blade that makes the depth of the recess variable.

Embodiments of the present invention will be described below with reference to FIGS. 6 to 10.

FIG. 6 shows a side view of an embodiment of the present invention, and FIG. 7 is a plan view of FIG. 6.

The coating agent 3 adhering to the coating roller 1 having a groove 1a on the outer edge of the roller is scraped off by a fixed blade 2 for removing excess coating agent 3. It is scraped off by a movable blade 5 welded to the top so that it can be moved back and forth by an adjusting screw 8 toward the application roller.

Therefore, after setting the gap δ between the fixed blade 2 and the movable blade to an arbitrary position depending on the viscosity and surface tension of the coating agent 3,
When the coating roller 1 is fixed and rotated, the coating agent 3 adheres to and is stored in the groove 1a of the coating roller 1 as shown in FIG.
is not concave as shown in Fig. 4, and the thickness α of the coating material 3 is
can be set to any thickness.

9 and 10 are plan views of other embodiments of the movable blade.

FIG. 9 shows a movable blade 6 having a V-shaped notch at its tip, and FIG. 10 shows a movable blade 7 having a V-shaped notch at its tip.

The coating roller 1 is coated using the movable blades 6 and 7 of this embodiment.
When the movable blade is rotated, the outer circumferential shape of the coating agent 3 that adheres to and is stored in the groove portion 1a of the coating roller 1 becomes approximately the same as the shape of the tip of the movable blade.

As described above, the present invention has the advantage that the amount of coating agent that adheres to the grooves of the application roller can be arbitrarily adjusted without causing the coating agent to adhere to areas other than the grooves of the coating roller.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a conventional coating device. FIG. 2 is a front view of a conventional electrode coating state. FIG. 3 is a side view of FIG. 2. FIG. 4 is a front view showing a state in which a coating agent is adhered to a grooved coating roller of a conventional coating device. FIG. 5 is a front view of the state of coating agent adhesion when the amount of coating agent adhered to the grooved roller is increased using the same conventional coating device. FIG. 6 is a front view showing an embodiment of the application position of the present invention. FIG. 7 is a plan view of FIG. 6. FIG. 8 is a front view of the state in which the coating agent is adhered to the groove of the coating roller according to an embodiment of the present invention. 9 and 10 are respective plan views of other embodiments of the present invention. Symbols in the figure 1: Application roller, 1a: Groove, 2: Fixed blade, 3: Coating agent, 4: Electronic components, 5, 6, 7: Movable blade, 8: Adjustment screw.

Claims (1)

[Scope of utility model registration request] A coating device including a blade that immerses a part of the peripheral edge of the coating roller in a coating agent and adjusts the coating agent attached to the peripheral edge to a constant thickness by rotating the coating roller,
A coating device characterized in that a fixed blade having a recess corresponding to the groove of the grooved application roller at the peripheral edge is provided with a movable blade that makes the depth of the recess variable.