JPS6029545B2 - automatic coating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an automatic coating method for applying paint to letters, figures, and symbols (hereinafter simply referred to as letters, etc.) that are formed in advance on the top cover of a camera by engraving or press processing to have a substantially concave cross section. It is related to the device.

Generally, there are two ways to add characters such as company name, product number, film position mark, etc. to the top cover of the camera.
In order to prevent these abrasions from disappearing, a method is known in which the characters are formed into a substantially concave cross-section by engraving or press working, and then paint is applied to the characters. The method of applying paint to the letters, etc. is to first roughly apply lacquer paint, etc. to the entire surface of the letters, etc., and after drying it to a certain extent, use a cloth moistened with lacquer thinner, etc. A method of wiping off unnecessary areas with regular paper is being explored, but in the past this method was done manually by workers, who had to perform the different processes of application and wiping separately. Not only does it take an extremely long time, for example, if the characters are formed in many places on the camera cover, or if multiple types of paint are to be applied, the number of man-hours increases and the work efficiency decreases. There is a risk that the
In addition, in the wiping process, the characters are usually limited by the thickness of the top cover and are formed in relatively shallow recesses, so depending on the amount of force applied by the operator, it may be difficult to apply the paint to the necessary parts of the characters. There was a tendency to wipe off even the paint, and as a result, those who were not experienced in the work were unable to apply the paint evenly. The present invention has been made to solve the above-mentioned conventional drawbacks, and its purpose is to shorten the working time by performing the different processes of coating and wiping synchronously, and to Even if the paint is formed in multiple locations or multiple types of paint are applied, deterioration in work efficiency can be prevented without increasing the number of work hours.
In addition, during the wiping process, a constant pressure can be applied during wiping to prevent paint from being wiped off from necessary parts such as letters, and the automatic method can always apply paint evenly. An object of the present invention is to provide a coating device.

The invention will now be described with reference to the accompanying drawings.

FIG. 1 is a perspective view of the camera upper cover showing the parts to which paint is to be applied by the apparatus of the present invention.
On the front of the is the trademark la, (hereinafter referred to as the company name trademark) to display the company name, and the trademark la2 (hereinafter referred to as the company name trademark) to display the model name.
(hereinafter referred to as the model trademark), and the manufacturer's name lb on the top.
A film position mark IQ, a serial number IQ, etc. are formed by engraving or press processing to have a substantially concave cross section.

Fig. 2 shows an embodiment of the present invention, in which 2 is a jig for mounting and fixing the upper cover 1, and the jig 2 is used to mount and fix the upper cover 1, and the jig 2 is used to mount and fix the upper cover 1, and the jig 2 is used to mount and fix the upper cover 1. It is formed to move to. The pick-up tool 2 consists of a base plate and an upper cover attachment part, and the upper cover attachment part is formed to be able to reciprocate by 90 degrees. , and at point B, it is formed so that it can change from the front surface to the top surface. 3 is the company name trademark la, model trademark la formed on the front of the upper cover.
2, and the first coating mechanism 3 includes two brushes, spatulas, etc. for applying the paint to each of the company name trademark la and the model name la2. A coating member is provided, and in its operating state, the coating member is configured to slide over letters, etc. while being supplied with paint by a paint supply device (not shown).

Further, the operation of the first application mechanism 3 is controlled by a detection section 3a provided on the side in the direction of entry of the picker 2 for detecting the presence or absence of an upper cover device, and the first application mechanism 3 is activated only when the sensor is located below the application member, a certain period of time after the detection section 3a detects the upper cover, that is, in the illustrated embodiment, after the detection section 3a detects that the upper cover is attached. It is formed to operate after the time required for the odor control unit with the upper cover attached to move two distances from the installation position of the detection unit 3a. Reference numeral 4 denotes a first drying section for drying or semi-drying the paint applied to the top cover, and the first drying section 4 uses an air blower (not shown) to blow air onto the top cover passing through the drying section. It is formed.

Note that the first drying section 4 is not limited to the one in which drying is performed using the air blower of this embodiment, but may also be implemented with a configuration in which a heating element is provided on the inner wall of the drying section and drying is performed using high heat.
Reference numeral 5 denotes a first wiping mechanism for wiping off excess paint applied to unnecessary parts other than the character parts out of the paint roughly applied by the first application mechanism 3; As shown in FIG. 2b, there is a supply section 5a for supplying a wiping member such as cloth or paper wound into a roll, and a winding loaf 5b formed to sequentially wind up the wiping member during operation. , and further includes a pressure roller 5c which is disposed in the middle and is movable in the vertical direction and is formed to move downward only during operation to press the wiping portion against the paint portion of the upper cover.

Note that the pressure roller 5c is not limited to the above-mentioned roller formed to be movable in the vertical direction, but may also be formed, for example, by an eccentric roller or the like so as to press the wiping member. In this embodiment, two sets of wiping portions are provided because the company name trademark la and the model name trademark la2 formed on the upper cover are not formed on the same plane but on different planes. The operation of the first wiping mechanism 5 is controlled by a detection unit 5d provided on the side in the direction of entry of the pick-up tool 2, and the jig 2 with the upper cover 1 attached is positioned below the pressure roller 5c. In other words, after a certain period of time after the detecting unit mother detects that the upper cover is attached, in the illustrated embodiment, the detecting unit 5d is activated by the jig 5 from the crimping roller 5c.
Since the pick-up tool is installed five times in front of the user, it is configured to operate after the time required for the pick-up tool to move five times in the direction of the arrow. 6 schematically applies paint to the manufacturer's name lb, film position mark IQ, and product number 1 formed on the top surface of the top cover 1, which has been rotated 90 degrees so that the top surface faces upward at point B. The second coating mechanism 6 is generally the same in configuration as the first coating mechanism 2, but the second coating mechanism 6 applies the paint to the manufacturer's name IQ, product number IQ, and film position mark IQ. Three applicator members are provided for this purpose.

Similarly to the first drying section 4, 7 is a second drying section for drying or semi-drying the paint applied to the upper cover 1.

Reference numeral 8 denotes a second coating mechanism 6 for wiping off unnecessary parts of the paint randomly applied to the upper surface of the upper cover by the second coating mechanism 6.
It is a wiping mechanism, which is configured similarly to the first wiping mechanism 5, and whose operation is controlled by a detection section 8a for detecting the presence or absence of the upper cover provided on the side in the direction in which the pick-up tool 2 enters. The jig equipped with the upper cover is configured to be activated only when the jig is positioned below the pressure roller.

Incidentally, in the above explanation, the paint used in the present invention was not specifically explained, but for example, water-soluble paints such as those described in detail in Tokuhan Sho 49-144137, which was previously filed by the applicant, may be used as the paint. If you use a paint made by mixing a surfactant with a plastic powder paint such as electrophotographic toner in an aqueous solution containing a polymer, use cloth or paper to wipe it off. In addition, when lacquer is used as the paint, cloth or paper impregnated with an organic solvent such as ether or thinner is used as the wiping member, and the lacquer is applied to the upper cover in the wiping mechanism and dried. Any type of paint can be used as long as it can wipe off the paint.

In this example, the above-mentioned configuration was investigated. Therefore, in order to apply paint to letters, etc. formed on the upper cover with a substantially concave cross section by engraving or press processing, it is necessary to remove the upper cover on which the letters, etc. are formed. The device is attached to the pick-up tool 2 from the working position with its top surface facing upward.

The jig 2 moves intermittently in the direction of the arrow at regular intervals until it reaches point A, where the upper cover mounting portion is rotated 90 degrees and the front surface of the upper cover is directed upward. . After the detection part 3a detects that the upper cover is attached, when the odor control 2 with the upper cover mounted advances two steps and is located below the application member in the first application mechanism 3, the detection part 3a The first coating mechanism 3 is operated based on the detected information. When the first coating mechanism operates, the coating member slides over the company name trademark la and model trademark la2 formed on the front surface of the upper cover while being supplied with paint by the paint supply device (not shown). Paint is applied roughly to the formed characters. The upper cover coated by the first coating mechanism 3 is dried in the drying section 4 and reaches the detection section 5d, where the upper cover device is detected. Then, when the common odor 2 wearing the upper cover enters the first wiping mechanism 5 and is located below the pressure roller 5c, the first wiping mechanism 5 is activated based on the detection information of the detection section 5d. First wiping mechanism 5
When activated, the pressure roller 5c moves downward and presses a wiping member made of a cloth band, paper, etc. on the roughly coated area of the upper cover, and at the same time, the winding roller 5b is also driven in synchronization with this. Therefore, the wiping member wound around the supply section 5a is sequentially wound up by the winding roller 5b. Therefore, in the application area located under the pressure roller 5c, the unnecessary part applied to the flat part of the surface is forcibly wiped off by the above-mentioned wiping material, but the application part is not applied to the character part formed with a substantially concave cross section. Since the paint will be left behind after wiping, the company name trademark LA and model trademark LA
Paint is applied only to 2. The upper cover, which has completed the process of applying paint to the letters on the front surface of the upper cover, further advances in the direction of finger loss and is again rotated by 90° at point B, so that its upper surface faces upward. And the detection part 6
When the jig 2 is located below the applicator of the second coating mechanism 6 after the attachment of the upper cover is detected in a, the second coating mechanism 6 is activated based on the information of the attachment of the upper cover of the detection part 6a. Therefore, the manufacturer's name lb formed on the upper surface of the upper cover,
The film position mark IQ and the product number IQ are roughly applied by the second application mechanism 6. Second application mechanism 6
The top cover schematically shaped is dried in a second drying section 7;
It reaches the second wiping mechanism 8 through a detection section 8a installed in front of the second wiping mechanism 8. The jig 2 whose attachment of the upper cover is detected by the detection unit 8a is connected to the second wiping mechanism 8.
When the detection unit 8a is located below the pressure roller of
The second wiping mechanism 8 is activated by the detection information, and the pressure roller moves downward to press the wiping member against the upper cover, and the winding roller is driven. Therefore, the paint roughly applied to the letters, etc. formed on the upper surface of the upper cover is wiped off only on the unnecessary parts applied to the flat surface, and the paint applied on the approximately concave cross section, that is, the necessary parts of the letters, etc. Since the paint applied to the film remains without being wiped off, please note the manufacturer's name lq, film position mark IQ, and product number I.
The paint is evenly applied only to Q. The upper cover, with paint applied to the letters, etc. formed with a generally concave cross-section on the upper surface of the upper cover in the manner described above, is returned to the working position in the installed state, that is, with the upper surface facing upward. It is removed from the pick-up tool 2 by the worker. As mentioned above, the present invention automates each process of coating, drying, and wiping, and each of these different processes is performed by a conveyance mechanism configured to move the top cover intermittently at regular intervals. Because it is configured to communicate, the different processes of coating, drying, and wiping can be performed synchronously, and compared to the conventional method of performing these processes individually by hand, the work time is significantly reduced. Can be shortened.

Further, according to the present invention, the coating mechanism is provided with coating members such as brushes and spatulas in a number corresponding to the number of spots to be coated, so that it is possible to coat a large number of spots in one step. In addition, if multiple paint supply units are provided for these coating units and each uses a different paint, it is possible to apply multiple types of paint in one man-hour, making it possible to apply multiple colors to multiple locations. Even when applying a single color paint to a single location, it can be done with the same number of man-hours as applying a single color of paint to a single location without any deterioration in work efficiency.

Furthermore, according to the present invention, in the wiping step, the wiping member such as cloth or paper is always pressed with a constant force by the pressure roller, so that by appropriately selecting and setting the pressure of the pressure roller, the wiping member such as cloth or paper can be removed. It is possible to wipe off only the unnecessary parts without wiping off the paint attached to the necessary parts, and it is possible to obtain excellent characteristic effects such as being able to apply the paint uniformly.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the camera upper cover showing the parts to which paint should be applied according to the present invention, and Fig. 2 a and b show an embodiment of the present invention, where a is a plan view and b is a front view. It is. 2...Odor pickup, 3...First application mechanism, 4...
...First drying section, 5...First wiping mechanism, 6... Second application mechanism, 7... Second drying section, 8... ...Second wiping mechanism, 3a, 5d,
6a, 8a...detection section. Bell/Figure 2

Claims (1)

[Claims] 1. In an automatic coating device for applying paint to letters, figures, symbols, etc. formed with a generally concave cross-section on a predetermined surface of a camera top cover, a brush, spatula, etc. is used to roughly apply the letters, etc. a coating mechanism having a coating member, and a cloth, paper, etc. formed so as to rub the portion of the roughly coated paint applied to a flat surface other than characters having a generally concave cross section. a wiping mechanism consisting of a wiping member and a pressure roller formed to press the wiping member onto the camera top cover with uniform pressure; A conveyance mechanism is provided with a jig formed to be movable, and when the top cover, which is sequentially moved at regular intervals, is stopped, the application mechanism and the wiping mechanism are activated. An automatic coating device characterized by: