JPS6120348B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This inventive device supplies a material having groove letters or groove patterns on its surface to a transfer holding plate, coats the surface of the material and inside the grooves, and covers the holding plate with a covering paper to apply the coating. This method continuously and reliably and quickly wipes off only the paint on the surface of the material and leaves it only in the grooves before the paint dries. Then, a large number of holding plates each having a concave portion on the top surface of which the painted surface slightly protrudes when the material is fitted are connected in an endless band shape, and this is hung between a pair of transfer rolls, and the edge of the concave portion is A band-shaped covering paper with a window hole of the same shape is hung between a pair of rolls that are moved at the same speed while closely contacting the upper surface of the holding plate, and moved to a position rearward than the covering paper and into a recessed part of the holding plate. A strip of wiping paper is hung between a pair of rolls so that it is in close contact with the painted surface of the mated materials and moves in the opposite direction, and the pressure plate is brought into contact with the top surface of the wiping paper, and the covering paper is removed. A material supply device and a paint spraying device are installed above the hanging position.

To manufacture plastic products with a wood grain pattern on the surface, for example, there are two methods: simply printing the wood grain pattern, and forming grooves in the wood grain pattern on the surface, spraying paint over the entire surface, and applying solvent to the surface before it dries sufficiently. There is a method of wiping the paint off the surface with a cloth or sponge dampened with water, leaving the paint only in the grooves.

Products made using the latter method have a three-dimensional wood grain pattern, making them more similar to wooden products, but the paint wiping work is currently done manually, which requires more workers and is extremely time consuming. It is inefficient and increases the product price, and it also involves first applying a base paint to the material, allowing it to dry sufficiently, and then applying a different color paint on top of it, leaving only the top coat paint in the grooves before it dries sufficiently. If you do not wipe it off quickly, you may end up dissolving the base paint along with the top coat paint and wiping it off.
This results in defective products.

This inventive device eliminates the above-mentioned inconveniences and automatically performs material supply, painting, and wiping in succession. and a recess 1 in which the painted surface slightly protrudes when the material 2 is fitted.
A large number of holding plates 18, 18', 18''... having plates 7, 17', 17''... formed on their upper surfaces are connected in an endless band shape, and this is hung between the rolls 19, 20, and the concave portion 1
7, 17', 17''... Window hole 2 with the same shape as the mouth edge shape
1, 21', 21''...
The holding plates 18, 18', 18''... are hung between the rolls 23 and 24 so as to be in close contact with the upper moving surface, then wound around the winding shaft 25, and moved to a position rearward of the covering paper 22 in the form of a roll. The wound wiping paper 26 is hung between the rolls 27 and 28 so as to be in close contact with the upper moving surfaces of the holding plates 18, 18', 18'', and then wound around the winding shaft 29.

Holding plates 18, 18', 1 between rolls 27, 28
An elastic pressing plate 30 like a sponge is provided so as to be in contact with the upper surface of the 8''....

A material supply device 31 and a paint spraying device 32 are provided between the rolls 23 and 24.

Motors 33, 34, and 35 are connected to the roll 19 and winding shafts 25, 29, respectively.

Next, to explain how to use it, motor 31, 3
2, 33, the holding plates 18, 18', 1
8″...The covering paper 22 moves forward in synchronization,
The wiping paper 26 also moves rearward.

Wood-colored plastic material 2, 2', 2''...
The wood grain pattern 16 is formed in advance during molding, and these are loaded into the supply device 31.

Since the holding plates 18, 18', 18''... and the covering paper 22 are moving in synchronization, the recesses 17, 17',
17'' and the window hole 21 move in unison, then the material 2 is supplied from the supply device 31 and fitted into the recess 17, and the painted surface is fixed with slightly protruding from the surface of the holding plate 18. .

Furthermore, when the holding plate 18 moves forward and passes the position facing the spraying device 32, the paint is sprayed and coated on the surface of the material 2 and in the groove 17, and the covering paper 2
It also adheres to the surface of 2.

When the material 2 further advances and passes the position of the roll 24, the covering paper 22 is rolled up upward and removed from the material 2.

When moving further forward, the paint comes into contact with the wiping paper 26 that is moving in the opposite direction, and the paint is wiped off in the same manner as described above.

This inventive device spray-paints a plastic material with groove letters or groove patterns on its surface, applies a coating film to the surface and inside the grooves, wipes off the coating film on the surface before it dries sufficiently, and only paints the inside of the grooves. In processing to clearly reveal letters and patterns by leaving them on, the work that was previously done manually can be done mechanically, making it extremely efficient and requiring no labor costs, resulting in lower product prices. can be reduced.

Since the material is moved while the strip of wiping paper is moved in the opposite direction, wiping is performed using heavily soiled paper at the beginning of the wiping process, and halfway through the wiping process, wiping is performed using partially soiled paper. Wipe it off, and in the final stage, wipe it with clean paper to ensure it is completely wiped off.

Since the holding plate is covered with a covering paper prior to spray painting and is removed after painting, it is possible to prevent the inconvenience of a thick coating layer being formed on the surface of the holding plate.

Furthermore, the device is composed of a material holding plate having a fitting recess, a covering paper having a window hole that fits into the recess, a holding plate transfer device, and a wiping paper moving device that moves in the opposite direction. All wiping operations can be performed mechanically, resulting in highly efficient processing.

The work of supplying the material to the holding plate, the spray painting work, the work of adhering the covering paper to the surface of the holding plate, and the work of removing the covering paper are all performed continuously and automatically, without requiring any human intervention. , the work efficiency is also high.

[Brief explanation of the drawing]

Fig. 1 is a side view of the inventive device in use, Fig. 2 is a front view of the same as above, Fig. 3 is a perspective view of the material, and Fig. 4 is a side view of the inventive device in use.
FIG. 5 is a perspective view of the covering paper, FIG. 5 is a perspective view of the holding plate, FIGS. 6 to 9 are perspective views showing the painting and wiping processes, and FIG. 10 is a perspective view of the product. 18, 18', 18'': Holding plate, 2, 2', 2'':
Material, 17, 17', 17'': Fitting recess, 4,
4', 4'': window hole, 19, 20, 23, 24, 2
7, 28: roll, 22: band-shaped covering paper, 26: band-shaped wiping paper, 31: material supply device, 32: paint spraying device, 25, 29: winding shaft, 33, 34, 35: motor.

Claims (1)

[Claims] 1 A number of retaining plates having the same shape as the ring drawing of the material to be painted and having recesses formed on the upper surface from which the painted surface slightly protrudes when the materials are fitted are connected in an endless band shape, and these are connected in pairs. Hang it between the transfer rolls of
A band-shaped covering paper having a window hole having the same shape as the mouth edge shape of the recess is hung between a pair of rolls that are moved at the same speed while being in close contact with the upper surface of the holding plate, and moved to a position rearward than the covering paper; A strip of wiping paper is hung between a pair of rolls so that it comes into close contact with the painted surface of the material fitted into the recess of the holding plate and moves in the opposite direction, and a pressure plate is placed on top of the wiping paper. A continuous coating device that has a material supply device and a paint spraying device that are in contact with each other and above the position where the covering paper is hung.