KR950006105Y1 - Heater jig washing device - Google Patents

Abstract

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Description

Heater Jig Cleaner

1 is an exploded view showing the configuration of a typical cathode.

2 is an exploded side view showing the jig loading state of the hitter and the tab.

Figure 3 is a plan view showing the configuration of the heater jig feeder to be used with the subject innovation device.

4 is a schematic perspective view showing the configuration of the device of the present invention.

* Explanation of symbols for main parts of the drawings

V1: conveying part V2: returning part

V3: Jaejae Lee G: Sensor

Z: cleaning nozzle

The present invention relates to the manufacture of CRTs, and more particularly to the manufacture of a cathode of an electron gun assembly.

As shown in FIG. 1, a cathode for generating an electron beam of the electron gun assembly includes a heater (H) in a sleeve (S) to which an electron-emitting material (E) is applied or housed. The heater H is used to heat the electron-emitting material E to emit electrons forming an electron beam. This heater (H) is connected to the stem pin of the electron gun assembly and receives a driving voltage from an external circuit. A heater (H) having a diameter of 1 or 2 mm can be directly connected to a stem pin or a connector. Since the heater tap (T) is bonded to the leg, and the heater tap (T) is connected to the stem pin through the connector, it is configured to apply power.

In order to continuously weld such heaters H and heater tabs T, a plurality of heater tabs T are continuously formed in the form of a lead frame, as shown, and then a plurality of heaters H. The method of welding continuously and cutting the dotted line part are used. In this section, a lead frame in which a plurality of heater tabs T are continuously formed will be referred to as a heater tap T for convenience.

In order to accurately and efficiently perform the above-mentioned welding of the heater tab, a welding process is performed by constructing a jig as shown in FIG. 2. In FIG. 2, the jig J includes a plurality of matching protrusions P on which the heater tabs T are set, a plurality of receiving grooves R in which the plurality of heaters H are accommodated, and a support electrode from below. Long slits (L) (not shown) are formed to enter each other, so that the heater tab T and the plurality of heaters H are sequentially loaded on the jig J, and then the heaters H Cover the jig cover (K) and protect the heater (H) and the heater tab (T) between the pressing electrode (W) and the support electrode entering from the bottom to the slit (L) of the jig (J). Is energized to bond the two.

After such bonding is completed, the jig cover K of the heater tab T needs to be peeled off, and the excess portion is cut off and the heater H to which the heater tab T is attached is removed from the jig J. Conventionally, the jig (J) is placed on the work target, and the operator sets the heater (H) and the jig (J) on the heater with tweezers, etc., then covers the jig cover (K), and moves between each processing device such as a welding device or a cutting device. Work was performed. As a result, a lot of work is required, and thus the productivity of the heater tap joining process is not high. Accordingly, there is a problem that a large number of workers must be fixedly placed in this process.

In order to solve this problem, the applicant proposes a "heater jig transfer device" that can automatically circulate a plurality of jigs between a plurality of working steps, and filed the same as the present application. This " heater jig transfer device " is a transfer section V1 extending between a plurality of work positions P1 to Pn arranged in-line as shown in FIG. 3 to transfer a plurality of jigs J. ), The return part V2 which transfers the used jig J to the opposite direction to this conveyance part V1, and the jig J between the conveyance part V1 and the return part V2 are transferred. It is configured to include two transfer portion (V3) of both ends.

However, the welding jig (J) is completed in the welding bleed generated during welding, the alumina powder, such as a coating on the heater (H), scrap remaining during the cutting of the heater tab (T), other dust or foreign matter, etc. Will exist. If it is left as it is, the heater (H) or the heater tap (T) is not seated in place, it is a deterioration factor of the productivity and quality, such as poor welding occurs. As a result, the worker had to clean the residue of the jig J with a brush or the like, which hindered the fully automated configuration of the "heater jig feeder".

In view of these problems, an object of the present invention is to provide a heater jig cleaning device capable of efficiently operating a "heater jig transfer device" by automatically cleaning residual foreign matter in a jig.

Heater jig cleaning device according to the present invention for achieving the above object is a transfer unit for transferring the jig between a plurality of working positions, the return unit for returning the used jig, and the transfer part for transferring the jig between the transfer unit and the return unit In the heater jig transfer apparatus provided, characterized in that the end portion of the transfer unit is provided with a sensor for detecting the arrival of the jig, and a cleaning nozzle for cleaning the remaining foreign matter on the jig in conjunction with the sensor.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In FIG. 4, the transfer part V3 where the used jig J is moved from the transfer part V1 to the return part V2 is made into the transfer part between the transfer part V1 and the return part V2. station (N) and two actuators (A1, A2).

The first actuator A1 pushes the jig J entered on the station N from the transfer part V1 to be aligned with the return part V2, and the second actuator A2 is the jig J. To enter the return unit (V2).

In the drawing, the first actuator A1 is configured to push the jig J to its head M and the second actuator A2 is provided with a dog D, but this is configured differently as necessary. The present invention is not limited to the present invention.

A sensor G, such as a proximity sensor for detecting the arrival of the jig J, is provided near the end of the first actuator A1 and near the end of the transfer section V1, and on the opposite side of the first actuator A1. A cleaning nozzle Z interlocked with S) is provided on the bracket B so that the jig J is directed. On the other hand, it is preferable that a hood (0, 0) is installed above the head M of the first actuator A1 to prevent the scattered foreign matter from flowing back into the jig J after the cleaning is completed.

The operation of the inventive device of such a configuration is as follows. When welding and cutting of the heater tab are completed and the jig J from which the heater is taken out moves along the transfer part V1 and approaches the end thereof, the sensor G detects this. Then, the compressed air is supplied from the compressed air source (not shown) to the cleaning nozzle (Z), and the return part is provided by the first and second actuators (A1 and A2) in which the cleaning air is injected from the cleaning nozzle (Z). Reentry to V2. At this time, foreign matter that has been scattered is re-introduced into the jig (J) is prevented by the hood (0).

As described above, according to the present invention, since the cleaning of the jig J is performed without the input of a separate working person, the operating efficiency of the heater jig transfer device may be increased to prevent defects and to improve productivity. Accordingly, the present invention has a great effect on improving the quality and productivity of CRT production.

Claims (1)

A heater jig transfer apparatus comprising a transfer unit for transferring a jig between a plurality of work positions, a return unit for returning the used jig, and a transfer unit for transferring the jig between the transfer unit and the return unit, wherein the transfer unit (V1) And a cleaning nozzle Z for detecting the arrival of the jig J and a cleaning nozzle Z interlocked with the sensor G to clean the foreign matter on the jig J. Heater jig cleaning device characterized in that.