JP2785999B2 - Wax coating equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a wax coating apparatus used for polishing or grinding a sheet material.

(Prior Art) A buffing process is sometimes performed on a metal plate, a plastic plate, a wooden plate, or the like for final finishing by polishing, or for pretreatment such as plating and painting.

In order to perform buffing, it is necessary to apply an abrasive to the surface to be treated and then to polish the surface with a soft buff,
Conventionally, a method of applying a liquid wax using a spray, a roll coater, a flow coater, or the like has been used for applying the abrasive.

By the way, in the present applicant, as a method for producing an antistatic plastic plate, a conductive transparent synthetic resin paint (a conductive fine powder made of antimony-containing tin oxide and having a particle size of 0.2 μm or less in a solid content of 50 to 50 μm or less) is used. A method has already been proposed in which a transparent synthetic resin coating containing 70% by weight) is applied to a transparent plastic plate and then the surface is buff-finished (Japanese Patent No. 1486042).

The antistatic plastic plate obtained by this manufacturing method has excellent total light transmittance and haze as compared with the antistatic plastic plate without buffing.

(Problem to be solved) In this manufacturing method, the buffing greatly affects the transparency of the product, and the improvement of the transparency is more than the buffing for the pre-treatment such as the usual gloss finish, plating, and painting. Is required.

However, if a liquid wax is used for applying the abrasive to the surface to be processed, the oil component of the liquid wax adheres to the product, and the uniformity of the buffing is likely to be impaired due to the adherence. Therefore, it is not appropriate to use a liquid wax as an abrasive in the buffing in the above-mentioned method for producing an antistatic transparent plastic plate, and it is advantageous to use a solid wax.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wax coating apparatus which can efficiently and sufficiently uniformly apply a solid wax to a surface to be buffed.

(Means for Solving the Problems) The wax coating apparatus according to the present invention is multi-row,
A vertically movable pan is provided at the bottom of a plate having a plurality of holes alternately provided, and rod-shaped solid waxes corresponding to the number of holes are placed on the pan, and the upper end of each rod-shaped solid wax is placed. It is characterized in that it comprises a wax supply device protruding from each of the holes and a bafflor reciprocating beyond the plate.

(Description of Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a wax supply device used in the present invention, and FIG. 2 is a sectional view taken along the line II-II in FIG.

In FIGS. 1 and 2, reference numeral 10 denotes a horizontally long box, and a plurality of holes 2,...
In addition, they are provided alternately and alternately. Numeral 3 designates a long saucer provided in the box 1 and provided with protrusions 31, 31 on both sides of a space having a width corresponding to the vertical width of each row of holes immediately below the holes 2 of each row. It is. Reference numerals 4,... Denote rod-shaped solid wax placed on the tray 3, and the lower ends thereof are protruding portions 31, 3 of the tray 3.
The upper end is protruded from each hole 2 of the plate 1.

The receiving tray 3 is vertically movably supported. In the illustrated embodiment, as shown in FIG. 3, a rotating horizontal shaft 52 with bevel gears 51,.
The bevel gear 54 at the lower end of the rotating longitudinal axis 53 is connected to the bevel gear of the rotating transverse axis 52.
The pan 3 is supported on the upper end of a vertically movable shaft 56 meshed with a threaded bracket 55 and screwed into a threaded bracket 55 via a rotating slider 57 (bearing).
And an upper end thereof are vertically slidably connected by a square hole 551 and a square rod 531. Therefore, when the rotation horizontal shaft 52 is rotated, the rotation is rotated by the bevel gears 51 and 54 and the rotation vertical shaft 53 is rotated.
The vertical movable shaft 53
56 is rotated and sent upward or downward for screwing with the threaded bracket 55, and the pan 3 is moved up and down with this up / down feed.

 FIG. 4 is an explanatory view showing one embodiment of the present invention.

In FIG. 4, reference symbol A denotes the above-mentioned wax supply device, which can be moved in the lateral direction by railing on rails 6,6. Reference numeral 71 denotes a front mount, and 72 denotes a rear mount. A wax supply device A is disposed between these mounts 71 and 72.
B is a buffing machine, which is provided with two polishing rolls 8, 8 driven by an electric motor (not shown). This roll 8
For this, a urethane foam or other relatively soft material is used. The buffing machine B is suspended and supported by a rail erected above and run by an electric motor, but its mechanism is not shown.

To buff the surface of the plate with the above device,
As shown in FIG. 4, the plate material C is loaded on the front base 71,
Next, by starting the motor of the buffing machine B, the buffa flour 8,
While rotating 8, the buffing machine B moves over the top plate 1 of the wax supply device A and moves onto the plate material C, and then moves over the wax supply device A and returns to the rear gantry 72. In comparison with the rotational peripheral speed of the baffle 8,
When the traveling speed of the buffing machine B is low, the contact surfaces thereof rub against each other when the buff flour 8 passes over the upper surface of the rod-shaped solid wax 4, the solid wax adheres to the outer surface of the buff flour 8, and the plate material is Since the surface of C is rubbed, the surface of plate material C is buffed.

In the above, compared to the rotation speed of the baffle 8 when the buffing machine B passes over the upper surface of the rod-shaped solid wax 4,
It is desirable to increase the rotation speed of the baffle 8 when the buffing machine B is positioned on the plate material C and buffing is being performed. For example, it is desirable to provide a limit switch between the wax supply device A and the front gantry 71, and to switch the rotation speed of the baffle 8 by contact of the buffing machine B with the limit switch.

Switching of the traveling direction of the buffing machine B is usually performed by a limit switch.

As described above, the buffing machine B uses the rod-shaped solid wax 4
The upper surface of the rod-shaped solid wax 4 is scraped off by the baffle 8 each time it passes through the upper surface of the rod 4, and the amount of head of the wax 4 gradually decreases. is there. This operation can be performed manually, but is preferably automated. For this automation, for example, the rod-shaped solid wax 4 can be raised by rotating the rotating horizontal shaft 52 by a predetermined amount every predetermined number of times of operation of the limit switch for reversing the running direction of the buffing machine.

In the above description, it is preferable that the wax supply device A be moved by the wheels 6 and 6 in the horizontal direction at predetermined intervals for a shorter distance than the horizontal width of the rod-shaped solid wax 4,
This movement can also be automatically performed every predetermined number of times of operation of the limit switch.

In the wax supply device according to the present invention, as described above, the upper end of the rod-shaped solid wax 4 is
The scraping state depends on the longitudinal width of the rod-shaped solid wax. In FIG. 5, 1 is a plate on the upper surface of the box of the wax supply device, 4 is a rod-shaped solid wax, 8 is a baffle, (I) is an initial state of scraping, and (III) is a final state of wax. Just before the next cue of (I
(I) shows an intermediate state between (I) and (III), respectively. In the state of (II), the rod-shaped solid wax 4
Has a tapered surface a due to the previous scraping. In FIG. 5 (II), when the rotating baffle 8 passes over the upper surface of the rod-shaped solid wax 4, a convex portion c between the tapered surface a and the flat surface b of the upper surface is formed on the surface of the baffle 8. In accordance with the bite, the Young's modulus or hardness of the baffle 8 and the rotational torque of the baffle 8, a shear force acts on the protrusion c, and the surface layer of the protrusion c is scraped off and transferred to the baffle 8. The baffle 8 on the surface layer of the tapered surface portion a and the flat surface portion b other than the convex portion c
The amount of transfer to the baffle 8 is very small compared to the amount of transfer of the surface layer portion of the convex portion c to the baffle 8. Transfer efficiency becomes poor. Thus, as the vertical width of the rod-shaped solid wax 4 increases, the ratio of the tapered surface portion a or the flat surface portion b to the convex portion c increases, so that the transfer efficiency of the wax to the baffle 8 deteriorates. According to the present invention, since the rod-shaped solid wax is used in a plurality of rows, the solid-state wax is used in a single row. The length of one rod-shaped solid wax can be reduced, so that the efficiency of attaching the wax to the baffle can be increased.

In FIG. 5, the force acting on the upper surface of the rod-shaped solid wax 4 by friction with the baffle 8 is F, the height from the position of the hole 2 of the plate 1 to the upper surface of the rod-shaped solid wax 4 is I, , The horizontal force f acting between the lower end of the rod-shaped solid wax 4 and the tray 3 is f = FI / L, and L≫I Therefore, f can be kept extremely small. Accordingly, it is possible to prevent the lower end 41 of the rod-shaped solid wax from slipping on the tray 3, and in combination with the locking action of the projection 31, the rod-shaped solid wax can be simply placed on the tray 3. Solid wax can be stably supported.

As described above, according to the wax coating apparatus of the present invention, the rod-shaped solid wax can be stably supported with a simple configuration, and the rod-shaped solid wax in the stable supported state can be adhered to the baffle with excellent efficiency. In addition, since the rod-shaped solid waxes are alternately arranged in a plurality of rows, the wax can be attached without leaving the front width of the baffle.

(Effect of the Invention) The wax coating apparatus according to the present invention has the configuration as described above, and can apply the solid wax uniformly to the surface to be processed without coating leakage. Therefore, the solid wax can be sufficiently and uniformly applied to the surface to be buffed with excellent efficiency, and the buffing in the above-described method for producing an antistatic transparent plastic plate can be performed by using the liquid wax to prevent inconvenience such as sticking of oil. By excluding it, the work can be performed with excellent work efficiency and sufficiently uniformly. Further, since the solid wax is inserted into the hole of the plate and the solid wax is supported by a simple means of supporting the lower end of the solid wax with a vertically movable receiving tray, the wax supply device can be simplified.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a wax supply device used in the present invention, FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1, and FIG. FIG. 4 is an explanatory view showing an embodiment of the present invention, and FIG. 5 is an explanatory view showing a state in which solid wax is transferred to a roll in the apparatus of the present invention. DESCRIPTION OF SYMBOLS 1 ... Plate, 2 ... Hole, 3 ... Receiving tray, 4 ... Rod-shaped solid wax, A ... Wax supply device, 8 ... Bafflora.

Claims (1)

(57) [Claims] A vertically movable pan is provided below a multi-row, alternately provided plate having a plurality of holes, and a plurality of rod-shaped solid waxes corresponding to the number of holes are provided in the pan. A wax coating device, comprising: a wax supply device which is mounted and crests the upper end of each rod-shaped solid wax from each of the holes, and a bafflor which reciprocates over the plate. .