JPS6223567Y2 - - Google Patents

Description

[Detailed description of the invention] This invention applies anaerobic hardening or other sealant, adhesive, etc. to the outer periphery of the threaded parts of many items such as screws and bolts, especially cylinder stand bolts that support cylinder heads. This invention relates to a continuous coating device for coating.

Conventionally, this type of article has been coated with a coating liquid by feeding the article onto a coating roll whose circumferential surface rotates in the feeding direction. However, in this case, the article contacts the coating roll at only one point, resulting in insufficient coating, and the width to which the coating liquid is applied is limited to the width of the circumferential surface of the coating roll, so it is difficult to change the width. The application roll had to be replaced, which was inconvenient.

In addition, when the coating liquid is pumped up using a dish or the like and the article is immersed in the coating liquid, the operation is performed intermittently, resulting in poor efficiency.

The present invention eliminates this drawback by supporting the coating roll so as to rotate around an axis extending along the feed direction of the article, so that the article is in contact with the coating roll for a long time along the generatrix line, thereby ensuring sufficient coating. The liquid is applied and the width of the application can be adjusted by changing the angle at which the axis of the application roll is inclined with respect to the transport direction of the article.

An embodiment of the present invention will be described in detail below with reference to the drawings.

As shown in the first and second figures, a pair of bearings 2, 2, 3, 3 are provided on both sides of the base 1, and a pair of sprocket wheels 4, 3 are provided on these bearings 2, 2, 3, 3, respectively. 4, 5, 5 are supported for rotation by shafts 6, 7, and these sprocket wheels 4, 4,
A pair of chains 8 and 9 are placed between 5 and 5. As shown in the second figure, the shaft 6 of the sprocket wheel 4 is connected to a motor 13 via a sprocket wheel 10, a chain 11, and a sprocket wheel 12.

Articles 14 are provided on the outer surfaces of the chains 8 and 9, respectively.
Holders 16, 16 formed with a recess 15 into which the
Fix a large number of ... in a line. This chain 8,9
A guide rail 17 for guiding the article 14 is provided on one side and below, and this guide rail 17 is connected to a discharge shooter 18 .

Friction plates 20, 20 are fixed between the chains 8, 9 and at positions adjacent thereto, which engage with the lower surface of the article 14 and impart rotational motion to it. Also the second
As shown in the figure, guides 2 are provided at the front and rear of the chains 8 and 9 to guide the front and rear ends of the article 14, respectively.
1 and 22 are fixed.

As shown in the first figure, bearings 23 and 24 are provided on the right side of the front part of the base 1, and an adjustment table 25 is provided on the bearings 23 and 24 to be adjusted up and down using a long hole and a fixing bolt. The above article 14 is placed on the stand 25.
A tank 27 for the coating liquid 26 located under the feed passage of
to be fixed.

A stirring blade 28 is supported at the bottom of the tank 27 so as to be rotated by a motor 29.

A coating roll 32 made of rubber, polyacetal resin, etc. whose lower part is immersed in the coating liquid 26 is mounted on a pair of bearings 30 and 31 fixed to both sides of the tank 27 along the chains 8 and 9, that is, the feeding direction of the article 14. The shaft 33 is supported to rotate around a shaft 33 extending therethrough, and the shaft 33 is connected to a motor 36 via bevel gears 34 and 35.

The direction of the shaft 33 is determined by the angle θ depending on the coating width.
Furthermore, the generating line of the upper surface of the coating roll 32 is tilted slightly downward by the thickness of the coating liquid 26 on the surface as it goes to the left, that is, along the feeding direction of the article, by the adjustment table 25. .

In addition, 37 in the figure is a blower for drying.

Next, the operation of this device will be explained.

The motor 13 drives the sprocket wheel 4,
1, and the chains 8, 9 and the holders 16, 16 . . . supported thereby move leftward in FIGS.

The articles 14, 14, . . . fit into the recesses 15, 15 of the holders 16, 16 in the right side of FIG. 1 in the front-rear direction. As a result, the front and rear ends of the article 14 come into contact with the guides 21 and 22, respectively, and the lower surface of the article 14 comes into contact with the friction plate 20, so that the article 14 is sent to the left while rotating. In this way, when the threaded part at the front of the article 14 comes to the position of the tank 27, the threaded part comes into contact with the generatrix of the upper surface of the coating roll 32, and the coating liquid is uniformly applied to the circumferential surface, but the coating width is Above axis 3
3, that is, the length of the forward component due to the inclination angle θ of the generatrix of the upper surface of the coating roll 32.

Further, since the generatrix line is slightly inclined downward as it goes to the left, it gradually separates from the bottom surface of the article 14 and prevents the coating liquid from returning to the coating roll 32 due to surface tension.

The articles 14, 14, coated with the coating liquid in this way...
... is sent to the left in FIG. 1, then held by the guide rail 17 at the position of the sprocket wheel 5 and guided downward, and then returned to the right on the guide rail 17 by the hot air of the blower 37. It is then dried and discharged from the discharge shutter 18.

As described above, according to the present invention, the automatic continuous operation is efficient, and since the article is in contact with the generatrix of the coating roll for a sufficient length of time, it is possible to completely coat the article, and the article can be fed along the axis of the coating roll. By changing the inclination angle with respect to the direction, the width over which the coating liquid is applied can be adjusted.

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a right end view. 14... Article, 8, 9, 15, 16... Device for feeding while rotating, 26... Coating liquid, 27... Tank, 32... Coating roll, 33... Axis, θ... Inclination angle.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A device for feeding an article while rotating it in one direction, a tank for a coating liquid located under the feeding path of this article, and a coating roll whose lower part is immersed in the coating liquid. The applicator roll is supported to rotate about an axis extending along the feed direction of the article,
A continuous coating device that adjusts the width of coating liquid by changing the angle of inclination of this shaft with respect to the article feeding direction. (2) The continuous coating device according to claim 1, wherein the axis of the coating roll is slightly inclined downward along the article feeding direction.