JPS6325654Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drying device used when cleaning and then drying the funnel of a cathode ray tube envelope.

Generally, a conductive film is formed on the inner wall of the funnel of the cathode ray tube envelope by applying dag, which is mainly composed of graphite, but before this work, the funnel is cleaned with chemicals and water. . After cleaning, the funnel is dried by blowing off the moisture that adheres to it with air or by heating it. After cleaning, the funnel is turned over to apply dag, and the funnel is turned over when cleaning the sealing surface of the funnel, so if there are any water droplets left, they will flow backwards and cause dirt to flow. This is because it is necessary to completely remove moisture, as this may cause inconveniences such as drying. However, it is difficult to dry the water droplets that accumulate on the flare part 2 of the funnel 1 shown in Figure 1, and the water droplets are removed by wiping with gauze or the like by hand. In order to completely remove water, measures such as extending the length of the drying oven and increasing the amount of air were taken, which was extremely uneconomical.

The present invention was developed in consideration of these points, and provides a funnel drying device suitable for efficiently removing moisture remaining in the funnel of a cathode ray tube envelope by vacuuming it after cleaning. It is. That is, a water inlet is provided at the upper end of the moisture suction container connected to the vacuum device by piping, and the water inlet is always in contact with the flared end of the funnel that is sequentially conveyed, so that sufficient water can be drained. It is characterized by the following.

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 2, the moisture suction container 11
is connected to a vacuum device 12 by a vacuum piping 13, and a water inlet 20 is provided at the upper end of the container 11, so that the ends of the flared portions 2 of the funnels 1, which are successively suspended and conveyed, are The container 11 is rotatably held by a shaft 17 so that it can be moved forward in contact with the water inlet. This structure will be described in more detail. As shown in FIGS. 3 and 5, the container 11 is a box-shaped body with a substantially diamond-shaped cross section, the center of which is supported by a cylindrical shaft 17, and is attached to a stand 19 with a bracket 18. There is. At the upper end of the container 11, rectangular water inlets 20 having a width of 2 to 3 mm are bored in parallel at an angle of approximately 35 degrees as shown in FIG. Further, a water discharge hole 21 is provided at the lower end. As shown in Fig. 6, one end of the shaft 17 is connected to a vacuum pipe connected to a vacuum device, and an opening 22 is provided downward in the interior of the container to prevent sucked moisture from entering the vacuum path. It is treated like this. The container is held rotatably, and a weight 23 is attached to the lower end to effectively rotate the container.

With the device configured as described above, moisture remaining in the flared portion of the funnel is removed in the following manner. In other words, the flared part of the funnel suspended on the continuous conveyance device hits the water inlet of the container, and as it moves further, the container also tilts accordingly, as shown by the arrow in the figure, and the water inlet of the container always remains in the same direction. It is also in contact with the flared part of the funnel. Since the container is connected to the vacuum device through an opening in the shaft, moisture is sucked in through the water inlet while the flare is in contact with the water inlet, and any remaining moisture in the flare is removed. . Moisture sucked into the container descends along the inner wall surface and is taken out to the outside through the discharge hole. The drained funnel leaves the container, and the container is rotated by the weight to return to its original position, and the flared portion of the funnel that is sent next comes into contact with the water intake port. In this way, the moisture from the flared portion of the funnel is successively absorbed. The container is supported so that it can rotate smoothly, and the weight is designed to have a weight that does not interfere with the progression of the funnel, so work can be continued efficiently.

Funnels also have different dimensions depending on the type, but since the water suction container is rotatably attached, the rotation angle changes to suit each type, so the flare part can always be in contact with the water intake port. .

As described above, according to the apparatus of the present invention, it is possible to sufficiently remove moisture from the flared portion that remains and is difficult to remove when drying the funnel after cleaning. Therefore, there is no longer any hindrance to operations such as dust coating after cleaning, resulting in a significant improvement in yield. In addition, funnels can be efficiently dried without particularly needing to strengthen the drying oven, which not only improves work efficiency, but also has the advantage of automating post-drying process connections.

It goes without saying that the moisture suction container is not limited to the one shown in the drawings, but can also have a modified structure as an efficient means for removing moisture from the flared portion according to the gist of the present invention.

[Brief explanation of the drawing]

Figure 1 is a front view of the cathode ray tube envelope, Figure 2 is a diagram schematically showing an embodiment of the present invention, Figure 3 is a front view of the moisture suction container of the present invention, and Figure 4 is the moisture suction container. A is a plan view of the water inlet, B is a cross-sectional view, FIG. 5 is a view showing the moisture suction container of the present invention installed, and FIG. 6 is a cross-sectional view of the moisture suction container of the present invention. 1... Funnel, 2... Flare part of the funnel, 11... Moisture suction container, 12... Vacuum device,
13... Vacuum piping, 17... Shaft, 20...
Water inlet, 22...Shaft opening, 21...Water discharge hole.

Claims (1)

[Scope of utility model registration request] A box-shaped moisture suction container with an approximately diamond-shaped cross section, a vacuum device connected to the container through piping, and a cylindrical shaft connected to the piping and penetrating the center of the container to rotatably hold the container. The shaft is provided with an opening in the container, and the container has a water inlet at its upper end always in contact with a flared end, and a water outlet at its lower end. A drying device for a funnel for a cathode ray tube, characterized in that a hole is provided.