SU802213A1 - Circular for sealing hold element in screen colour electronic tube - Google Patents

Description

(54) CAROUSELY MACHINE WELDING CLAMPS IN A COLOR KINESCOPE SCREEN

manifestations of the supply clamps made in the form of a system of levers and drive.

FIG. 1 shows a general view of the machine; in fig. 2 - the same plan view; in fig. 3 is a sectional view of FIG. 2 in FIG. 4 - locking device; figure 5 is a screen at the place of welding fixative, section.

The carousel machine consists of a base 1 with a central column 2, a carousel 3, a drive 4 of the carousel, devices 5 with centering mechanisms b and welding of 7 fixers having devices 8 for induction heating.

The machine also contains a valve 9, an electric collector 10, mounted on the central column 2, a power supply unit with a high frequency generator and a pneumatic control system (not shown).

In the upper part of the central column 2, a yoke 11 is installed to fix over the devices 5 actuators: devices 12 for measuring the temperature of heating clamps, heating furnaces 13 and devices 14 for loading clamps

Based on 1, a locking control device 15 is installed, consisting of a system of levers 16 and a pneumatic actuator 17.

On each device 5, podrukhsinennye pushers 18 are installed / alternately interacting with the control device 15 and associated with the welding mechanisms 7, which in turn interact with the device 14 for loading clamps, after

turning the carousel 3 From one position to another.

The device for loading clamps consists of trays 19 according to the number of clamps made with rotary sections 20 at the end. Trays 19 are associated with vibratory hoppers 21 and have rotary shutoffs 22.

The rotary sections 20 of the trays are made of two parts 23 and 24 interconnected by means of a hinge 25 and held in the initial position by HviH spring 26. At the end of the rotary sections 20, the separators 27 are interconnected interacting alternately with induction heating devices 8 installed on the mechanism for welding fixtures 7 .

Device loading clamps. 14s, is supplied by pneumatic actuators 28, which ensure the rotation of the cutters 22, which serve to orient and feed one latch to the rotary sections 20 of the chutes 19. The pneumatic actuators 28 ensure that the rotary sections 20 are retracted before turning the carousel from one position to another.

Carousel machine works as follows.

On the first POSITION, automatic locking of clips into the

induction heating devices, for which the feed control device of the latches moves the spring-loaded pusher 18 through a system of levers 16 and pneumatic actuators 17. Under the action of the pusher 18, the welding mechanism 7 feeds the induction heating devices 8 to contact them with the rotatable sections 20 of the chutes 19 into which the latches are fed from vibrating hoppers 21.

In this case, the induction heating devices 8 press the slam-shut stops 27, supplying one latch to the socket of the induction heating devices in which the clamps are fixed by vacuum.

In order to reliably load the latches, the turning sections 20 of the chutes 19 are made of two parts 23 and 24 held by the spring 26, which provides compensation for the tolerance of the arrangement of the induction heating devices 8.

After fixing the latches, the pneumatic actuator 17 through the system of levers 16 ensures the removal of the spring-loaded pusher 18, the movement of the welding mechanism 7 and the retracting of the induction valve 8 with the latches fixed in them from the rotary parts 20 of the loading device 14. Then the pneumatic actuators 28 are diverted to the sides turning parts 20 , ensuring the transfer of the carousel to the next position,

At the same time, the pneumatic actuators 28 rotate the cut-offs 22, which ensures the arrival of the next retainer in the load-oriented position.

At the second and third positions with the help of furnaces 13, the sockets for mounting the screen are heated.

At the fourth position, the screen of the color kinescope heated to 420-460 C is loaded into the slot of the device 5, which is centered and fixed by the centering mechanism 6.

At the fifth position, the induction heating devices are connected to the high frequency generator, the clamps heat up, and the welding mechanism 7 begins to gradually insert the latches into the heated side of the color kinescope screen.

In the sixth position, the insertion of clamps into the screen to the required value continues, after which the induction heating devices 8 are disconnected from the high-frequency generator, the supply of vacuum to the induction heating devices 8 is stopped, removed from the screen of the induction heating device, and the screen is released from being fixed by the centering mechanism 7,

At the seventh or eighth positions, the screen is removed with an в-welded retainer and sent to the annealing furnace.

The use of the proposed carousel for welding clamps to the color kinescope screen provides automation of the welding process of clamps, which increases the quality of their welding into the screen and increases productivity.

Claims (3)

1. A carousel welding machine clamps in a color picture tube screen, containing a base with a central column, a carousel, a carousel drive, positions with centering and welding mechanisms, a spool, an electrical collector, a power supply unit and a pneumatic control system, characterized in that welding clamps to the color kinescope screen and increasing productivity, it is equipped with a loader. fixers mounted on the central column, a vibrating hopper, a feed control mechanism iksatorov mounted on the base, and a pusher mounted on each item and associated with the welding mechanism and a control mechanism for feeding fasteners. 2. The machine according to claim 1, is different in that the loader of the latches is made in the form of associated 0 with a vibrating hopper of trays with turning sections and turning cutters, the turning sections of the trays being made of spring-loaded parts pivotally interconnected and 5 stops-cutters. 3. The machine according to claim 1, which is distinguished by the fact that the mechanism for controlling the feeding of the latches is made in the form of a hinge system and a gear. Sources of information taken into account in the examination 1. US Patent No. 3359444, cl. 313-64, 1967. five 2. USSR author's certificate number 278957, cl. From 03 to 23/20, 1968. /four 8 Fz. FIG. five