JPH0825358B2 - Artificial marble manufacturing equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manufacturing apparatus for drawing a pattern on the inner surface of a transparent gel coat layer of artificial marble.

[0002]

2. Description of the Related Art Recently, artificial marble is sometimes used for a part of furniture such as a ceiling board of a sink. Artificial marble is coated with a gel coat, which is a thermosetting resin mixed with a curing agent, on a mold formed in a predetermined shape, and the transparent gel coat layer is provided with an inorganic filler on the inner surface of the thermosetting resin. It is manufactured by injecting raw materials formed by kneading a filler such as a curing agent and a pigment.

By the way, a pigment for drawing a pattern on an artificial marble having such a structure is kneaded in advance with a resin as a raw material, and then the raw material is poured into a mold.
Artificial marble is manufactured.

Therefore, it is difficult to draw a certain pattern on the surface in contact with the gel coat layer, and the pattern may be slightly different for each product. Further, it has been impossible to draw a pattern with an arbitrary color tone or shape on an arbitrary portion.

[0005]

As described above, the pigments have been conventionally kneaded in advance as raw materials, so that the color tone and shape of the pattern may differ from one product to another, and an arbitrary pattern may be drawn on an arbitrary portion. There were some things I couldn't do.

The present invention has been made in view of the above circumstances, and an object thereof is to make it possible to automatically draw a desired color tone pattern while freely changing the mixing ratio of a plurality of pigments. It is to provide an apparatus for producing marble.

[0007]

In order to solve the above problems, the present invention is directed to an artificial marble manufacturing apparatus for drawing a pattern on the inner surface of a transparent gel coat layer of artificial marble, wherein pigments of different colors are used. A plurality of tanks accommodated, a mixing means for mixing the pigments flowing out from each tank, a nozzle body for discharging the mixed pigments, a driving means for driving the nozzle bodies in a three-dimensional direction, and preset And a control means for controlling the mixing ratio of the plurality of pigments by the mixing means based on a program and controlling the driving of the nozzle body by the driving means.

[0008]

According to the above construction, the mixing ratio of a plurality of pigments can be arbitrarily set by controlling the mixing means, and the driving means controls the driving of the nozzle body so that an arbitrary pattern is automatically formed. You can draw.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

The apparatus for producing artificial marble shown in FIG. 1 has a plurality of tanks containing pigments of different colors, in this embodiment, a first tank 1 and a second tank 2. Each of the tanks 1 and 2 is provided with a pigment outflow portion 1a, 2a at a lower portion thereof, and is connected to an upper end thereof at a branched end of a compressed air pressurizing pipe 3 for pressurizing the pigment contained therein. An electromagnetic opening / closing valve 4 is provided in the middle of the pressurizing pipe 3, and the other end is connected to a supply pump 5.

The outflow portions 1a, 2a of the tanks 1, 2 are connected to the mixing device 6. That is, this mixing device 6
Has a body 7. A housing hole 8 is formed in the main body 7 along the width direction thereof. Further, the main body 7 has a first inflow port 9 and a second inflow port 11 which communicate with the accommodation hole 8, and an outflow port 13 which communicates with the accommodation hole 8 through a mixing chamber 12. First and second communication passages 14 and 15 are formed to connect the first inflow port 9 and the second inflow port 11 to the mixing chamber 12, respectively.

The outflow portion 1a of the first tank 1 is connected to the first inflow port 9 via a first connecting pipe 9a, and the outflow portion 2a of the second tank 2 is connected to the second portion. Is connected to the inflow port 11 via the second connecting pipe 11a.

A piston-shaped first valve body 16 and a second valve body 17 are slidably accommodated in the accommodation hole 8. Communication grooves 16a, 17 are formed on the outer peripheral surfaces of the valve bodies 16, 17, respectively.
a is formed, and the first and second inflow ports 9 and 11 are communicated with the mixing chamber 12 through the communication grooves 16a and 17a.

The amount of the pigment flowing into the mixing chamber 12 from the inflow ports 9 and 11 is the sliding position of the valve bodies 16 and 17, and the ports 9 and 11 and the communication grooves 16a and 17 are formed.
It can be changed by the degree of confrontation with a (the degree of communication). That is, by controlling the slide positions of the valve bodies 16 and 17, the mixing ratio of the pigments flowing into the mixing chamber 12 from the tanks 1 and 2 and flowing out from the outflow port 13 can be adjusted. Has become.

A first control motor 18 is provided on one end surface of the main body 7, and a second control motor 19 is provided on the other end surface. Male threads 21 and 22 are formed on the rotary shafts of the motors 18 and 19, respectively.
2 are screwed into the first valve body 16 and the second valve body 17, respectively. Therefore, the male screws 21 and 22 described above
The sliding position of each of the valve bodies 16 and 17 can be adjusted by controlling the rotation of the valve.

The outflow port 13 of the mixing device 6 is connected to the nozzle body 24 by a flexible third connecting pipe 23. The nozzle body 24 is moved by the drive mechanism 25,
It is designed to be driven in the three-dimensional directions of Y and Z.

That is, the drive mechanism 25 is an X motor 26.
Driven by the X in the X direction along the guide rail 27.
It has a driver 28. A Y drive body 31 driven by a Y motor 29 in the Y direction orthogonal to the X direction is provided on the lower surface of the X drive body 28. On the lower surface of the Y drive body 31, a Z drive body 33 is provided which is driven by the Z motor 32 in the Z direction which is a direction orthogonal to the plane formed by the X direction and the Y direction. The Z drive 33 has a holder 3
4 is provided, and the nozzle body 24 is vertically held by the holder 34. Therefore, the nozzle body 24 is X,
It can be driven in three-dimensional directions of Y and Z.

The solenoid opening / closing valve 4 and the first control motor 1
8, second control motor 19, X motor 26, Y motor 2
9 and the Z motor 32 are driven by a drive signal from the controller 35. A program for the color tone and shape of the pattern to be drawn on the inner surface of the gel coat layer 36 of artificial marble, which will be described later, is preset in the control device 35, and a drive signal is output to each of the above drive units by the program.

A mold 41 is installed below the nozzle body 24. In the mold 41, the gel coat layer 36 is provided with the inner surface facing upward. Then, after forming a pattern layer 37 by drawing a pattern on the inner surface of the gel coat layer 36 as described later, an inorganic filler or a curing agent was mixed in a thermosetting resin such as an unsaturated polyester resin or an acrylic resin. By injecting the base layer 38 made of a material, the artificial marble 39 having the structure shown in FIG. 2 is formed.

Next, the procedure for drawing a pattern on the inner surface of the gel coat layer 36 will be described. First, when the color tone or shape of a predetermined pattern drawn on the gel coat 36 is programmed in the control device 35, the control device 35 is operated. Control device 3
5 first outputs a drive signal to the solenoid on-off valve 4, and this valve 4
Open up.

Next, the first control motor 1 of the mixing device 6
8 and the second control motor 19 to drive the first valve body 16
And the second valve body 17 are driven to slide. As a result, the tanks 1 and 2 flowing from the first inflow port 9 and the second inflow port 11 into the mixing chamber 12 through the communication grooves 16a and 17a formed in the valve bodies 16 and 17, respectively. The pigment flow rate is set. That is, the pigments are mixed in a ratio according to the color tone of the pattern drawn on the gel coat layer 36.

The pigment mixed in the mixing chamber 12 flows out from the nozzle body 24 and is applied to the inner surface of the gel coat layer 36. At that time, the control device 35 drives the drive mechanism 25 in the X and Y directions according to the shape of the preset pattern. As a result, a pattern preset in the controller 35 is automatically drawn on the gel coat 36 layer. When the pattern layer 37 is formed on the inner surface of the gel coat layer 36, the base layer 38 is injected on the inner surface side to form the artificial marble 39 described above.

In the above embodiment, the pigment contained in the tank was supplied under pressure, but if the fluidity of the pigment is good, it is not necessary to pressurize. Further, the number of tanks is not limited to two and may be three or more, and the number thereof is not limited at all. Further, the means for driving the nozzle body in three dimensions is not limited, and may be attached to, for example, an arm of a robot driven in three dimensions.

[0024]

As described above, according to the present invention, the pigments flowing out from a plurality of tanks are mixed at a preset ratio, and the nozzle body for letting out the mixed pigments is driven and controlled.

Therefore, the mixing ratio of a plurality of pigments can be changed according to the color tone of the pattern drawn on the inner surface of the gel coat layer, and the nozzle body can be driven according to the shape of the pattern, so that the desired color tone or A shape pattern can be automatically formed.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention.

FIG. 2 is a side view of the artificial marble.

[Explanation of symbols]

1, 2 ... Tank, 6 ... Mixing device, 24 ... Nozzle body, 25
... drive device, 35 ... control device, 36 ... gel coat, 37
... pattern layer, 38 ... base layer, 39 ... artificial marble.

Claims (1)

[Claims] 1. An artificial marble manufacturing apparatus for drawing a pattern on the inner surface of a transparent gel coat layer of artificial marble, comprising: a plurality of tanks each containing a paint of a different color; and a pigment flowing out from each tank. A mixing means for mixing, a nozzle body for letting out the mixed pigment, a driving means for driving the nozzle body in a three-dimensional direction, and a mixing ratio of a plurality of pigments by the mixing means based on a preset program. An artificial marble manufacturing apparatus comprising: a control unit that controls and drives the nozzle body by the driving unit.