JPS59187605A - Apparatus and method for producing artificial head skin - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an artificial scalp manufacturing device and an artificial scalp manufacturing method.

Conventionally (・J: When manufacturing an artificial scalp, a brush was used to apply the coating agent to a doll-shaped mold in steps 1 to 1. Since this brush application was done by hand, brushing unevenness occurred, resulting in poor quality of the finished product. Streaks appeared on the artificial scalp, and it was impossible for even the most skilled person to erase these lines.Furthermore, brush application required skill, and it took time and effort to train an expert. Painting with a brush was time-consuming, even for people with disabilities, and each person could only make a small number of artificial scalps.

We investigated a spray method other than brush painting, but the spray method produced air bubbles on the artificial scalp, making it spongy, making it impossible to obtain an artificial scalp with a clean surface. A vacuum was applied, but the bubbles did not come to the surface, so it was impossible to remove them. A dipping method was also attempted, but in the case of an artificial scalp using nylon netting for reinforcement, air bubbles remained between the nylon nets and these air bubbles could not be removed. The flow coating method used in the present invention has been used for coating flat surfaces, but the reality is that it has not been used for coating non-flat surfaces like the head shape according to the present invention. Furthermore, the shape of the human head is infinitely different, and no two heads are exactly the same, and the irregularities also vary. In the experimental process, we found that in the case of a round nozzle with a flat top, unless a large amount of coating agent is used, the coating agent will not spread sufficiently on the mold surface and a lot of the coating agent will be wasted. Also, if the nozzle is moved in a spiral manner, air bubbles will form in the overlapping area.

The object of the present invention is to provide an artificial scalp manufacturing apparatus and an artificial scalp manufacturing method that can be efficiently mass-produced by completely improving the conventional manual method of manufacturing an artificial scalp, which is inefficient.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments of a manufacturing apparatus of the present invention shown in the drawings and examples of a manufacturing method of the present invention.

FIG. 1 is an explanatory diagram of a manufacturing apparatus according to an embodiment of the present invention.

The mold l is placed on the tray 2 and conveyed onto the lifter plate 4 by the conveyor 3, and then transferred to the rotary table 5.
It is pushed upward by lifter plays 1 and 4 and cylinder 6, which are equipped with.

The lifter plate is supported by a cylinder 6 and a guide bar 7 and has a guide receiver 8 that moves up and down, and the cylinder 6 is fixed to a lid base 9. The outer diameter of the tray 2 is such that the outer diameter approaches the inner diameter of the cylindrical exhaust hood 20 and the gap around the cylindrical exhaust hood 20 is reduced.

At the same time as the 7ter plate rises, the rotary table rotates, and the mold 1 rises while rotating.

The large head-shaped mold 1 is made of plaster or the like using a female mold modeled after a human head. The surface of the mold 10 is previously coated or coated with a mold release agent such as silicone to facilitate mold release of the artificial scalp. In this embodiment, a case will be explained in which the mold 1 is covered with a nylon net. This nylon net reinforces the artificial scalp.

When the tray 2 reaches the top of the lifter plate 4, the cylinder 6 moves upward, and at the same time, the drive device 10 for the rotary table 5 provided on the lifter plate 4 starts to rotate.

When the tray 2 rises and the outer periphery of the tray 2 enters under the exhaust hood 20, a device 11 capable of spraying the solvent onto the mold causes the solvent 12 to be pumped in a fixed amount by the discharge pump 13 and sprayed from the nozzle 14. Type l is rotary table 5
Since the mold 1 continues to be rotated by the drive device 10, the solvent 12 is sprayed over the entire surface of the nylon net placed on the mold 1.

7 When the tar plate 4 reaches the rising end, the pump 13 stops and the spraying ends. The device 11 capable of spraying a solvent in this manner consists of a discharge pump 13 and a nozzle 14.
The solvent 1.2'i in the solvent tank 15 is configured to be sprayed during the ascent of the rotary table 5.

The reason why the solvent is sprayed while mold 1 is rising is because if you stop spraying and immediately pour the coating agent when it finishes rising, the coating agent will flow more easily on the nylon net surface, and the surface viscosity of the coating agent will decrease on the net surface. This is because it makes it difficult to form bubbles, and it also helps the adhesion of the coating agent.

There is an air inlet above the exhaust hood 20 , and a damper 21 and a damper opening/closing device 22 are provided here, which opens at the same time as the solvent discharge pump 13 operates, allowing air to flow downward and directing the evaporated gas to the exhaust pipe 23 . flow in the direction

The device 16 for rotating the mold consists of a drive device 10 and a rotation control device (shown in the figure), and is configured to start and stop the rotation and set the rotation speed.

Next, flow coating is performed at (1).The pulp of the device 30 which is flow coated at the same time as the spraying of the solvent j2 is finished: 31 is opened and closed;
Kakeru! 111] Apparatus: The coating is released by the tank 34, flows out from the tank 34, passes through the nozzle 35, covers the iron, and flows onto the cuffed mold 1 where the solvent 12 is sprayed. Since mold 1 continues to rotate by drive unit 10, coating agent 33 is applied over the entire surface of mold J.
Flowing: h, ru. Here, the rotation speed of mold 1 and pulp: 3
Since the opening time of 1 is set to 52 (7), the opening/closing drive device 32 operates at the same time as the coating completes one rotation, and the pulp 31 closes.
0 ir1 Consists of Valpal 1, a pulp opening/closing drive device:) 2, and a nozzle 35, and the valve opening/closing drive device: 32 is interlocked with a device I6 that rotates the mold, and is formed to open or close the pulp. I'm here.

Nozzle; 35 is a nozzle whose opening part is shaped like a long fan as shown in Fig.
It is compatible with 171 nozzles and eliminates the need to make nozzles to fit each type.

Since the mold is rotating 17 as described above, the flow of the coach ink 33 flows around the entire mold 1 and completes coaching. The coating agent spreads while flowing down from the - part of the firmness toward the hem, forming a wave-like shape at the hem.1~The flow stops hh. Some of the material flows from the mold and accumulates in the tray 2, but this level of flow saw force will most likely result in a coating condition of 1. Figure 3 shows the state in which the pulp 31 is opened and the mold 1 rotates once, and the coating agent 33 flows and spreads over the entire surface of the mold 1. Explanation 1 (a)
It is.

Pulp: The coating agent 33 remaining in the nozzle 35 is applied to the small part 351 of the opening part of the nozzle (31) so that the nozzle 3b is oriented horizontally. Hold the pulp at an angle: i* (.In this way, the coating agent 33 will flow down continuously for a while in an elongated shape toward the center of the mold J. Figure 5 shows the state after the pulp 31 is closed It is an explanatory diagram showing a state in which the coating agent :) 3 flows down from the nozzle 35.

It is clear from the figure 1: U/Y, the relationship between nozzle 35 and mold 1 is that the upper part of the center of mold 1 (small part 35 of 1 of nozzle 35) is ( The device is arranged to

After the Harg 31 is placed on the market, it is kept at that 1 inch for a predetermined period of time, and before the coating agent 3:3 intermittently falls from the nozzle 315, the movable drip receiver 110'tH nozzle: 35 is moved under the nozzle 35. The fallen coaching agent 33 is led to the drain pipe 41 and discharged. ? C) t is to prevent the generation of air bubbles for 1+j+months, since when the coating agent is dropped intermittently, all the air is engulfed at the dropout position and the bubbles are collected.

:1-Zoing I'i;3:3 is)%jJ 3-1It melts when you touch it?It vaporizes for 111 minutes.
, 2 days later, I had a slow C, but I started drying out, a). Coach Eve cut 33's 'IIR,, It is suddenly K, t) me7
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7 is inevitable, and the coating film on the zenith of type 1 will be thinner. In order to solve this problem, even after the valve 31 is placed on the market, a small amount of the coating agent 33 is poured onto the top of the mold 1, where it is about to become thin. Talented 1. This eliminates the thinning of the coating film at the zenith. Figure 6 shows the cordage at the zenith after Figure 5.
This is a cross-sectional view showing the flow condition of the coating agent (36). Normally, the coating layer becomes effective at the zenith area as time passes, as shown in 36, but by flowing the remaining coating agent, the thinner area at the zenith area as shown in Figure 6. Since the thickness of the remaining coating layer 37 is added to this part, the thickness of the layer at the zenith can be made thinner to prevent rain.

When the coating agent 33 has finished flowing, the mold 1 is
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Erase 4, the streaks l/・- of solvent 12 are j, 7 according to the following
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The nozzle 11 (-1 river), '\tq-ro 1, and the mold ■ are placed on the conveyor 3 and moved to the next process by the time the lifter plays 1 and 4 reach the lower end.The mold 1 that has finished coating
is transported to a drying oven and dried, thereby completing one coating. By repeating the coating process several times, it is possible to produce an entire artificial scalp with a uniform thickness.

Since the specific gravity of the solvent gas is higher than that of air and it settles downward, the outer diameter of the tray 2 is made larger and the gap between it and the exhaust hood 20 is made smaller to increase the velocity of the air flowing in from below.
It was introduced in The exhaust pipe 23 (r) is led to the underground duct 42, and a fan (not shown) is installed at the end of the underground duct 42.
It has a structure that suctions and processes evaporated gas.

The damper 21 of the exhaust hood is returned to the closed state at the same time as the completion of the coach ink, but it is not closed completely, but is formed to allow some air to flow in. This is to completely prevent solvent gas from filling the exhaust hood and reaching a concentration that could cause an explosion.

A plate heater 50 is tightly attached to the bottom of the coating agent tank 34. This is to prevent the viscosity of the coating agent 33 from hardening due to a drop in temperature, and is controlled by an automatic temperature controller to a temperature preset by a temperature sensor 51. In this way, the temperature control device 52 for the coating agent 33 is controlled by the plate heater 50.
, a temperature sensor 51, and a temperature node A device.

Further, a liquid level control device 53 is provided within the tank 34 and has a level switch 54, which also serves to control the opening and closing of a valve 55. In other words, these temperature control device 52 and liquid level control device 53 are used to keep the film thickness of the artificial scalp as constant as possible by minimizing the head difference with the nozzle and making the outflow amount of the coating agent 33 as constant as possible. This is the device.

56 is a supply pipe for the coating agent 33, and 57 is a tank 34.
The overflow pipe 58 is a collector, and the camp 59 is removed to facilitate cleaning of the inner surface of the pipe 57 when the entire inner surface of the pipe 57 is to be cleaned.

The outer 1ffl of the tank 34 is covered with a heat insulating material 60.

The underground duct 42 is connected to a grill 43 provided on the floor to suck in and exhaust all leaking vaporized gas with heavy specific gravity.

Since the present invention is configured and operates as described above, the following effects can be obtained. First, the artificial scalp obtained has a smooth and clean finish without uneven brushing or air bubbles. Second, it can be manufactured with much higher efficiency than manual labor, which greatly increases labor productivity. In addition, the number of applications can be reduced compared to manual coating, there is less loss of coating agent, and energy is saved. Furthermore, since it is mechanized and unmanned, it is possible to eliminate the harm of organic solvents to the human body.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of a manufacturing apparatus according to an embodiment of the present invention, Fig. 2 is a plan view of the shape of the nozzle opening, and Figs. 3 to 6 are explanatory diagrams showing the states of each stage of coating. . 1...Mold 2...Tray 3...Conhair 4...Lifter plate 5...Rotary table 6...Cylinder 7...Guide bar
8...Guide receiver 9...Lifter base 1o
... Drive device 11 ... Solvent spray device 12.
...Solvent 13...Discharge pump 14...Nozzle 15...Solvent tank j6...Device for rotating the mold 20...Exhaust 7-de 21...Damper 2
2... Damper opening/closing device 23... Exhaust pipe 30...
・Flow coating device 31...Valve 32...Valve opening/closing drive device 33...Coating agent 34...Tank 35...
・Nozzle 351... Portion with small radius of nozzle 35: 36...
Coating layer 37...Residual coating agent layer 40...Movable drip tray 41...Drain pipe 5
0...Plate heater 5]...Temperature sensor 5
2...Temperature adjustment device 53...Liquid level control device 54
...Level switch 55...Valve 56...
Supply pipe 57... Overflow pipe 58.
...Collector 59...Gap 60...Heat insulation Figure 1

Claims (7)

[Claims] (1) In the production of artificial scalps using coating methods, highly concentrated and highly viscous coating agents containing organic solvents (
33) is arranged under the nozzle (35) and a doll-shaped mold (
1) An apparatus for manufacturing an artificial scalp, comprising: a device (30) for applying flow coating from above; (2) Scope 17 of the special request, characterized in that it consists of a device (16) for rotating the mold (1) and a solvent spray device (11) for applying a solvent (12) to the mold (1). The artificial scalp manufacturing device according to item 1. (3) The coating agent (33) is provided with a temperature control device ('52) and a liquid level control device (53) of the coating agent tank (34) according to claim 1. Human-L scalp manufacturing device. (4) The artificial scalp manufacturing device according to claim 1, wherein the opening of the nozzle (35) of the flow coating device (30) is formed into a long m-shape. (5) In the production of artificial scalps using coating methods, highly concentrated and highly viscous coating agents containing organic solvents (3
3) A doll-shaped mold (1) rotating from the nozzle (:35)
A method for producing nesting [scalp], which is characterized by pouring over the scalp and then drying. (6) The method for producing an artificial scalp according to claim 5, characterized in that the solvent Q21 is sprayed before and after the flow coating. (7) The method for producing an artificial scalp according to claim 5, characterized in that a desired amount of the coating agent C33) is continuously poured onto the zenith of the k-type (1) in a step after flow coating.