JPH0258982B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a multi-coat spreader.

Conventionally, when manufacturing artificial decorative veneers, painted material veneers are laminated to form a frit, and the frits are sliced with a slice plane that intersects the laminated surface to obtain a decorative veneer with a wood grain pattern. When painting the veneer of the material, two or more types of paint are applied in stripes in order to express the wood grain pattern well.

When performing such multilayer coating, a spreader shown in FIGS. 1 and 2 has conventionally been used. That is, two spreaders 1 and 2 are installed adjacent to each other in the feeding direction A of the object to be coated.
These spreaders 1 and 2 include one wide feed roll 3, coating rolls 4 mounted above the feed roll 3 at regular intervals, and each coating roll 4.
A doctor roll 5 that comes into contact with the coating roll 5 and each application roll 4
and a doctor roll 5 from both sides to form a paint reservoir. Each coating roll 4 and doctor roll 5 are attached to one rotating shaft 7, 8, respectively. The positions of the application rolls 4 of the two spreaders 1 and 2 are shifted from each other in the width direction, and the first spreader 1
A striped pattern of paint is applied, and unpainted areas are painted with the second paint by the second spreader 2.

However, in the first and second spreaders 1 and 2, the paint must be replenished into the paint reservoir for each coating roll 4, which poses a problem in that replenishing the paint takes a lot of effort. In addition, two paint stop plates 6 are provided for each application roll.
Because of this, there was a problem that the number of parts was large and the structure was complicated.

SUMMARY OF THE INVENTION Accordingly, an object of the invention is to provide a multi-layer coating spreader which can replenish paint to each coating roll at one time from one location, has a small number of paint stopper parts, and has a simple structure.

An embodiment of this invention is shown in FIGS. 3 and 4. In the figure, 10 is a wide feed roll for feeding the plate 11 to be coated, on which a coating roll 12 and a doctor roll 13 are arranged in parallel. The coating roll 12 has a large diameter coating surface 12a and a small diameter non-coating surface 12b alternately, and is attached to a rotating shaft 14. The doctor roll 13 has alternating large-diameter portions 13a and small-diameter portions 13b that mesh with the applicator roll 12 and are in substantially rolling contact with the applicator roll 12, and is attached to a rotating shaft 15. Application roll 12 and doctor roll 1
The rotation shafts 14 and 15 of No. 3 are connected to a rotation drive device. A paint stop plate 16 is brought into contact with the end faces of both ends of the applicator roll 12 and the doctor roll 13, and a continuous groove-shaped paint reservoir is formed between the paint stop plate 16 and the circumferential surfaces of the applicator roll 12 and the doctor roll 13. It is formed. Application surface 12a of application roll 12
and the doctor roll _13b , and the non-application surface 12b of the application roll 12 and the doctor roll 1.
3a, the gap d ₂ is such that d ₁ >d ₂ as is clear from FIGS. 3 and 4. Note that two of these spreaders are arranged side by side apart from each other in the feeding direction of the object to be coated, similar to the example shown in FIG.

With this configuration, the paint stopper plates 16 at both ends
Applicator roll 12 and doctor roll 1 in between
Paint 17 is placed in the continuous groove-shaped paint reservoir between the upper surfaces of 3.
By storing the amount of paint and feeding the object 11, the object 11 is coated in stripes only with the large-diameter coating surface 12a of the coating roll 12. Therefore, it is only necessary to replenish the paint at one location in the continuous groove-shaped paint reservoir, and thereby the paint is distributed over the entire coating surface 12a of the coating roll 12, which simplifies the effort of replenishing the paint. Also, the interval d ₂ is the interval d ₁
The paint 17 in the paint reservoir is narrower than the distance d ₁
An amount suitable for coating on the plate 11 to be coated is supplied from. On the other hand, it does not flow down from the gap _d2 and does not stain the plate 11 to be coated or the feed roll 10. Furthermore, since only two paint stopper plates 16 need to be provided at both ends, the number of parts is small and the structure is simple.

As described above, the multi-layer coating spreader of the present invention has a coating roll that is installed substantially parallel and has alternating large-diameter coating surfaces and small-diameter non-coating surfaces, and a large-diameter coating roll that meshes with and substantially rolls into contact with the coating roll. A doctor roll having alternating portions and small diameter portions and forming a groove-shaped paint reservoir between the coating roll and a peripheral surface of the application roll, and a pair of paint stopping members closing both ends of the groove-shaped paint reservoir. and a distance d ₂ between the small diameter non-coating surface of the coating roll and the large diameter portion of the coating doctor roll.
Since the distance between the large-diameter coating surface of the coating roll and the small-diameter portion of the doctor roll is narrower than d ₁ , the paint can be replenished from one place, making it easy to replenish the paint and eliminating the need for a paint reservoir. The paint will not run down from the non-coated surface of the coating roll and stain the surface of the plate to be coated or the feed roll. Furthermore, the structure is simple, requiring only two paint stoppers.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a conventional spreader, FIG. 2 is a side view thereof, FIG. 3 is a plan view of an embodiment of the present invention, and FIG. 4 is a side view thereof. 10...Feeding roll, 12...Applying roll, 1
2a...Coated surface, 12b...Non-coated surface, 13...
Doctor roll, 13a...large diameter part, 13b...
Small diameter section, 16...Paint stop plate.

Claims (1)

[Claims] 1. The coating roller has a coating roll which is installed substantially parallel and has alternating large-diameter coating surfaces and small-diameter non-coating surfaces, and alternating large-diameter portions and small-diameter portions that mesh with the coating roll and are in approximately rolling contact with the coating roll. A doctor roll that forms a groove-shaped paint reservoir with the circumferential surface of the roll, and a pair of paint stoppers that close both ends of the groove-shaped paint reservoir, and a doctor roll that forms a groove-shaped paint reservoir between the coating roller and the small-diameter non-applied surface of the coating roll. A multi-layer coating spreader in which a distance _d2 between the large diameter portion of the doctor roll is narrower than a distance _d1 between the large diameter coating surface of the applicator roll and the small diameter portion of the doctor roll.