SU993346A1 - Device for coating radio components with powder compound - Google Patents

Description

The invention relates to the production of electrical components, in particular electrical capacitors, and can be used to seal the electrical components of their compounding.

A device for coating radio components with a powder compound is known, which contains a conveyor with fastening elements of radio cassettes and a bath for the compound. The device also keeps thermal chambers for preheating radio components and the reflow chamber for radio components with | 1.

A disadvantage of the known device is the unsatisfactory quality of the coating, due to the fact that the powder compound, when exposed to heat from heat chambers, collects into lumps, and the bath with the compound most of the cycle is in the heating zone and is not protected from heat.

The purpose of the invention is to improve the quality of coatings.

This goal is achieved by the fact that a device for coating with a powder compound of radio components, containing a conveyor with fastening elements of radio cartridge and

a bath for the compound, equipped with a cassette moving mechanism in the bath, made in the form of a pneumatic cylinder with a rod, and stops, which form a slot for the passage of radio components, and the fastening elements of the cassettes with radio components on the conveyor are made in the form of two spaced one in the other frame, the outer frame is rigidly fixed on the conveyor, the inner frame is connected to the outer one by means of springs, and the pneumatic cylinder of the mechanism for moving the cassettes into the van 15 is interoperable by means of stock with internal frame.

In addition, in the stops there are closed cavities for the passage of refrigerant 20.

FIG. 1 shows the device, a general view; in fig. 2 and 3 is a diagram of operation of the device in two positions (node 1 in FIG. 1); in fig. 4 and 5 25 the device in two positions, a cross-section.

Claims (2)

The device is a modular design and consists of a loading module 1, a module 2 for preheating condensers, a module for applying 3 compounds, a module 4 for final melting, prepolymerization and cooling of condensers, a module 5 for unloading condensers and a conveyor 6 with an infinite flexible orb Ghana. The loading module 1 serves to tension the conveyor 6. The pre-heating modules of the capacitors are a tunnel oven with infrared lamps 7 Each module 3 consists of a bath 8 with powder compound 9, which is mounted on a vibrator 10, Baths 8 are located between chambers 11 oplav laziness powder. In the zone of the baths 8, the feeding mechanisms of the cassettes 12 with radio components 13 to the baths 8 are installed, which contain pneumatic cylinders 14. The latching element of the cassettes 12 consists of fixed external frames 15 fixed inside the opposite links of the conveyor 6, inside which are mounted internal moving frames 16, spring-loaded springs 17 to frames 1 in the zone of their attachment to the conveyor 6. Above the movable inner frames 16 there are bars connected to the rods 18 of the pneumatic cylinders 14, designed to align the movable inner frames 16 in their lower position on the base stops 19, which provide the same depth of immersion of the radio components 13 into compound 9. The stops 19 are made in the form of parallel spaced closed cavities connected to the refrigerant source (not shown) and forming an entire groove 20 between them for the passage of parts 13. . . -Pins 21 and springs 22 are provided for fixing the cassettes 12 with radio components 13 into the movable inner frames 16. The final flash modules 4 are also a tunnel furnace with infrared lamps 7 for melting the last layer of powder with prepolymerization and gradually cooling of the coating of condensers. Module 5 unloading capacitors provided with a drive 23 conveyors. The device works as follows i. The cassettes 12 with radio components 13 are mounted on the movable inner frames 16 of the conveyor 6. The fixed cassettes 12 with radio components 13 pass through six preheating modules 2, where they reach a certain temperature using infrared lamps 7 and approach module 3 compound application. . Under the action of the vibration of the bath 8 and the air supplied to the bath, the powder compound 9 is liquefied. In module 3 application, during the period of the transport of the conveyor 6, the rod 18 of the pneumatic cylinder 14 with the alignment bar undergoes descent under the action of compressed air, meets the protrusions of the moving inner frame 16 with fixed cassettes 12 with radio components 13 and lowers them to the clamping stops 19. Heated radio components 13 are lowered into the fluidized-fluid bath 8. The stop 19 provides a height-stable immersion of the radar details 13. After a certain time, the stem 18 of the pneumatic cylinder 14 with the leveling bar rises up and under izhna frame 16 with p adiodetap E 13 by springs 17 also ascends. Then the frames 15 and 16 are moved by the conveyor 6 to the reflow chamber 11, in which the adhered powder is melted and the products are heated. Step by step, the conveyor 6 moves; products to the following modules of the 3 application of the compound. After the fourth module 3 (Fig. 1) of the application of the compound, the product 13 enters the chamber 4, where the final melting of the adhered powder takes place using infrared lamps. I Subsequently, the radio components pass through the remaining chambers 4 with a gradual decrease in temperature, after which they are transferred by conveyor 6 to the module 5 to unload the radio components. Claim 1. Device for coating with a powder compound radio components, mainly capacitors, containing a conveyor with fastening elements of radio components and a bath for Compounds, characterized in that, in order to improve the quality of the coating, it is equipped with cassettes moving above the bath, made in the form of a pneumatic cylinder with a rod, and stops forming a slot for the passage of radio components, and the fastening elements of the cassettes with radio components on the conveyor are made in the form of two one in another frame, the outer frame is rigidly fixed on the conveyor, the inner frame is connected to the outer one by means of springs, and the pneumatic cylinder of the mechanism for moving the cassettes into the bath is installed with the ability of the rod to interact with the inner frame. 2. The device according to claim 1, about tl and one that the closed cavities and refrigerant passages are made in the stops. 9933466 Sources informschiI. taken into account in the examination 1. US patent 3875898, CL. 118-421, 1975 (prototype). nineteen FIG.