JPS5980355A - Coater for long body - Google Patents

Abstract

PURPOSE:To form the layer of an adhesive agent having uniform thickness on a long body, by applying a coating agent introduced into a distribution chamber onto the entire outer surface of the long body with uniform pressure after adjusting its distribution by a means for adjusting the distribution of a coating agent. CONSTITUTION:An inlet 24 and an oulet 25 for a long body which enables the running of a long body 2 are provided at a coating agent-distributing chamber 20 into which a coating agent is introduced, in a manner such that said inlet and outlet is notched or pierced through the chamber 20. The shapes of the inlet 24 and the outlet 25 are those which provide an outer coating part in the sectional shape of the long body with proper clearance. In addition, a means 31 for introducing a coating agent is connected to the chamber 20, and means 20' for adjusting the distribution of a coating agent are provided in the vicinities of the inlet 24 and the outlet 25 inside the chamber 20 in a manner such that said means 20' have large sectional area for distribution or small passage length for distribution at a position in a large distance apart from a part connected to the means 31. Thus, uniform pressure is applied to the entire outer surface of the long body, and the layer of the adhesive agent having uniform thickness is formed on the long body.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an apparatus for applying a gold coating agent to the outer surface of a long object having a constant cross section 1ni perpendicular to the longitudinal direction.

When applying adhesive, paint, or other coating Mll to a long object, a specific part (or the entire part) of the outer circumference in a cross section perpendicular to the longitudinal direction of the long object is τ A - Continuous application is performed. For example, by extrusion? 4) The long rubber or glass material is coated with 7Li agent for flocking or painted.

Hereinafter, for the sake of convenience, a long article will be specifically explained, taking as an example a bead which is a part of the upholstery of a seat used in automobiles.

Figure 1 shows the bead manufacturing process I'E: ? FIG. Soft vinyl chloride is extruded from an extruder 1 to form a bead material 2 having a cross-sectional shape as shown in FIG. ]. The material 2 has a shape in which two three-striped sections 2a (usually having a hollow section 2b) are connected by a fin section 2C, and its dimensions are, for example, an outer diameter of the upper section of 4 mm.

The inner diameter of the upper part is 2 torsos, the fin part is 1tJ, and the intestine is 11.

The extruded bead material 2 is led to a cooling tri 4 by a take-up roll 3 and cooled and hardened with cooling water 5 and the like. Next, the beaded cord 2 is dried and cooled in a drying/cooling oven 6 while running, and the adhesive applicator 7 coats the outer surface of the three-striped portion 2a of the beaded rope material 2 with urethane thread only as shown in FIG. Adhesive 8 is applied (FIG. 3 shows Ill-I in FIG. 1).
It is a 1-plane view of the beading material 2 in II']. Before the shoulder contact agent 8 dries and hardens, an electrostatic flocking machine 9 is used to apply nine stripes of about 0.9 denier in length and 2.5 denier in thickness to the three-striped portion 2a of the beading material 2, as shown in FIG. The pile 10 (I-Flocked [FIG. 4 is a sectional view of the welt material 2 along IV-IV' in FIG. 1]).

Electrostatic flocking (Z99 applies static air to the beading material 2).
a. Plant the pile 10 in an upright manner on the adhesive on the outer surface.

The flocked beaded rope material 2 is meandered in a drying oven 11, where the above-mentioned engraving agent is dried and hardened and the beaded cord material 2 is annealed, and then the material +12 is meandered in a cooling tank 12. At the same time, it is cooled by wind resistance. The pile-flocked beading material 2 is then taken over and rolled by the roll 13, and its fins 2c are divided into wavy lines, resulting in a beaded bead 2A having a shape as shown in FIG. are formed, and each of them is wound up by the winding roll 14 [FIG. 5 shows the first factor v
FIG. 2 is a cross-sectional view of the bead 2A at -v' and a plan view of the bead 2A].

What kind of contact agent is used in the bead manufacturing process as described above? Conventionally, two-cloth devices have been used, such as one in which the tip of the brush is brought into contact with only the three-striped portion 2a of the beaded edge 2 and a predetermined amount of adhesive is supplied to the brush, and one in which a roll coater is used. Ta. However, since the adhesive used here has a high viscosity of, for example, 4,500 to 5,000 cps, satisfactory application cannot be achieved using the conventional apparatus (M') as described above. It is difficult to apply a uniform coating over the whole area, and it is necessary to apply it all the way to the boundary line between where it should be applied and where it should not be applied. (i.e., the glands do not come out clearly when cutting off, leaving unpainted spots and smudging as shown in 7.7c1j), and the stringing phenomenon of the sanitizing agent is easy to stop. There is unevenness on the ribs, and there is a slight unevenness in the texture.
1j is also difficult.

SUMMARY OF THE INVENTION An object of the present invention is to provide an improved coating apparatus that does not have the disadvantages of the conventional coating apparatus for long objects as described in section 2 above.

The purpose as described above is to apply a pair of elongated objects having a vertical cross section in the longitudinal direction to a charged portion or the entire portion of the outer periphery in the cross section, while the elongated object is running in the longitudinal direction. In a device for applying a lubricant, a long object is made to be able to run through a lubricant distribution chamber into which the lubricant is introduced, as if cut out or through the distribution chamber; and a long object. An outlet is provided, and the shape of the outlet is such that an appropriate clearance is provided to the coated area on the outer periphery of the cross-sectional shape of the long object, while the coating agent distribution chamber has a coating agent Nt supply means. is being continued on sale, and near the long object inlet and long object outlet of the coating agent 01L passage chamber, there is a flow cross-sectional area at a position where the distance from the connection part with the coating agent agent is large. This is achieved by a wood-fired coating device characterized in that it is equipped with a coating agent distribution adjusting means that is narrow or has a small distribution path length.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in detail below using specific examples based on the drawings. Here again, we will take the bead material as an example of a long material for convenience.

FIG. 6 shows the magnetic path 17 of the coating device according to the present invention. 7) is an exploded perspective view of the vicinity of the coating agent distribution chamber. What is the device of this invention? 2) Equipped with 20 fabric distribution rooms. The flow chamber 20 preferably has a flat shape, and is formed between the base 21 and the lid 22 by fully joining them as shown in FIG. That is, the relationship between the base 21 and the lid 22
The mating surface has four parts 23 of a certain depth (for example, 1 mm).
is formed, and the joint portion of the lid portion 22 with the base portion 21 is a flat surface. In order to maintain the connection, the base portion 21 and the lid portion 22 may be screwed together at four corners. A long object 24 and a long object are placed in the coating agent distribution chamber 20 so that the adhesive applied surface of the beading material 2, that is, one of the three stripes 2a, can run in a direction substantially perpendicular to the flat shape of the coating agent distribution chamber 20. An outlet 25 is provided. These populations 24 in a plane perpendicular to the running direction of the welt material 2
The cross-sectional shape of the outlet 25 corresponds to the shape of the cross section perpendicular to the longitudinal direction of the three-striped portion 2a of the welt material 2, and its size is determined according to the outer periphery of the cross-sectional shape of the three-striped portion 2a of the welt material 2. Thickness with clearance. Here, the clearance is usually 0.3 to 0.4 mm, but it can be determined as appropriate depending on the desired thickness of the adhesive layer and the viscosity of the adhesive.
The population 24 and the exit 25 may be different.

Since the contact layer All is not applied to the fin strips 2C of the beading material 2, the part where the elongated material 24 and the outlet 25 cut out the coating agent distribution chamber 20 is the part corresponding to the three-layer capital 2a of the beading material 2. Only. A portion corresponding to the fin strip portion 2C is formed as a slit 26 that communicates with the outside. The lid part 22 has a lubricating agent volume 2 which is connected to the lubricating agent distribution chamber 20.
7 is formed. It is preferable that the position where the mouthpiece 27 is placed lh1 in the spreader distribution chamber 20 is at the end opposite to the elongated object 24 and the outlet 25. A coating agent vIL flow adjustment means 20' is provided in the vicinity of the elongated object 24 and the outlet 25 in the distribution chamber 20 of the apparatus of the present invention. This adjusting means 20' includes blocks 20a and 20b having a height 'lc about 50 to 80 inches above the recess 23 of the base 21, as shown in FIG. 7, for example.
+20 C+20d, 20e and 20f'(!-arrangement?ffi ((1 made.The size and spacing of each block 1゛I''i) is the distance from the population 27 to the applied Al18''. According to The position where the distance is small and the distance is large (
That is, in the blocks 20a and 20f, there is no flow;! ji i#rIt is formed into a groove that becomes thicker. The base 21 has a j to the ball 28 of the stand \9.
&'j [29 holes are formed, and 30 is a bolt hole for tightening. For population 2T such as liniment, i′■ Cloth agent 2
! ) A supply means 31 is connected, and the tfJl and public servant means 31 are, for example, Teflon tubes for guiding adhesive from a coating agent container 33 housed in a pressurized tank 32, and various pressurized tanks 32 Is there a pressure reducing valve? An air supply means 35 (connected to a compressor or the like) provided therein is connected.

FIG. 8 is a partial plan view and a partial sectional view of the base 21 in a case where the coating agent inlet 2T is formed on the base 21 side, contrary to the case shown in FIG. 127.

This figure allows for a better understanding of the size and positional relationship of each block constituting the coating agent flow regulating means 20'.

FIG. 9 is a partial plan view and a partial cross-section 1 of another specific example of the coating agent distribution adjusting means 20' of the apparatus of the present invention.
1 (Figure 1. In this specific example, distribution 1ijlj
The connecting means 20' surrounds the elongated article outlet 25 and is constituted by one block of continuously different size.

FIG. 1O further shows the coating agent flow adjusting means 20' of the apparatus of the present invention.
FIG. 4 is a partial plan view and a partial cross-sectional view of the base 21 to show another specific example. In this specific example, the distribution t, y?
The means 20' has a length of 11 feet, and is made up of one block having a constant length surrounding the entire length of the elongated object outlet 25 and having different path lengths in the adhesive flow direction. This block is formed so that the path length is large at a position close to the coating agent inlet 27, while the path length is small at a position far from the coating agent inlet 21.

In the above specific example, the joint surface of the good part 22 with the base 21 is flat lfI], but other parts of the base 21
The flow chamber 20 may be formed by forming a concave part in the lid part 22 with the joining surface of the base part 21 and the container part 22 as flat surfaces. It goes without saying that the distribution chamber 20 may be constructed by forming the flow chamber 20.

When using the coating device C6 for long objects as described above,
As shown in FIG. 6, attach the three-striped portion 2a of the beaded rim 2 to the elongated object 24 and exit 25! i L- for example 5
Make it run in the r-hand direction at m/min. At the same time, a suitable pressure (for example, a gauge pressure of 0.5 to 0.7 Yi) is fully applied to the pressurized tank 32 through the air subsea means 35, and the adhesive is introduced from the coating agent introducing means 31 into the coating agent distribution chamber 20. To force people. The adhesive introduced into the distribution chamber 20 reaches the long object 24 and the outlet 25 through the coating agent distribution adjustment means 20', and is transmitted to the three-striped portion 2a of the running bead rim 2 here. A'i is forced. Since there is a clearance between the dupioni part 2a and the elongated object outlet 25,
On the outer layer of the three-striped portion 2a which exits the threaded outlet 25, a contact l' and - agent Wt are formed to a corresponding thickness. Similarly, it is preferable that the long material 24 has an appropriate clearance such as j4t and a guide to the Sanjo Miyako 2a, but the beading material 2 is running with a certain degree of jealousy and is coated from the long material 24. The agent is i!
tLi (there is no such thing), the long object opening 24 may be formed with the same clearance as the long object exit 25 with respect to the three-striped part 2a. Among them, in FIG. Although the 11-IIMI cloth is applied only to the three-striped portion, in the actual process, the other three-striped portion is also coated with the same contacting agent at the same time using the coating device d.

According to such a coating apparatus of the present invention, there are
% adhesive is distributed by the drop agent distribution adjustment means 20' (i.e., the amount is limited because it tends to be large, and on the other hand, the lubricant?, 1 population) 27
At a position far from JIJ>
Since the adhesive is applied with uniform pressure to the entire outer surface of the three-striped portion 2& of the beading material 2 (with almost no restrictions), there is no residual adhesive left in the pot, and the incision gland can be shaped as desired. A bright straight line is formed at the boundary between the three-striped portion 2a and the fin-striped portion 2C.Also, by varying the running speed of the beading material 2 or the amount of adhesive applied by one person using a pressure tray, The total thickness of the meth d agent layer can also be adjusted.

In the above explanation, the beaded material was exemplified as a long object, but the long objects to which the steam apparatus of the present invention can be applied include all long objects such as rubber weather strips and rubber glass roughs used in automobiles, etc. Includes shakumono. The apparatus of the present invention also includes one for applying a coating agent to the entire outer surface of a long object. In this case, it is preferable to arrange the elongated object and the outlet so that the elongated object passes through the coating aluminum agent distribution chamber. Further, the coating agent applied by the apparatus of the present invention may include paints in addition to adhesives, and the apparatus of the present invention is particularly suitable for applying high-viscosity coating agents.

[Brief explanation of drawings]

Fig. 1 is a manufacturing process diagram of the bead, and Figs. 2 to 4 are nn', In-111', and IV-IV' of Fig. 1, respectively.
Figure 5 is the Lfjr view of the beaded moon in Figure 1.
A cross-sectional view and a plan view of the bead along line v-v' in the figure,
FIG. 6 is a schematic configuration diagram of the present Komei coating device fM, FIG. 7 is an exploded perspective view of the vicinity of the coating agent distribution chamber, and FIG.
Figures 9 and 10 are a partial plan view and a partial sectional view of the base for maintaining the coating agent distribution chamber. 2: Bead material 2a: Three-striped portion 2c: Fin-striped portion 2A: Bead 20 : Coating agent distribution chamber 20': Coating agent distribution adjusting means 20a, 20b, 20c, 20d, 20o. 20f Niblock 21: Base 22; Lid 23: Recessed portion 24: Long object outlet 25: Long object outlet 26: Slit 27: Coating agent introduction port 31: Coating agent introduction means 32: Pressure tank 33: Coating agent container 34: Pressure reducing valve 35: Air supply means Fig. 6 Fig. 7 Fig. 9 Fig. 8 1 Fig. 9 1

Claims (1)

[Claims] To continuously coat a long object with a fixed shape of 1ti71ffi perpendicular to the longitudinal direction with a coating agent gold on a specific part or the entire part of the outer periphery in the IFji plane while moving the long object in the longitudinal direction. In this apparatus, a long object outlet and a long object outlet are provided in the coating agent gold coating into which the coating agent is introduced to make the long object travel 51 times as if cutting out or penetrating the Df tracing chamber. In addition, the shape of the population and the outlet are such that a large clearance is given to the 4 mm outer circumference of the cross-sectional shape of the long object, and on the other hand, there is a means for applying the coating agent in the above-mentioned production agent distribution room. is connected to the long object in the Oz cloth agent distribution chamber and near the long object outlet, there is a vIC communication at a position where the distance from the contact point with the above-mentioned wipe agent handling means is large. Coating agent 1 for long objects, characterized by being provided with a coating agent distribution adjusting means such that the cross section 4, -( is thick or the distribution path length is small)
1 device.