SU585044A1 - Hopper-type loading device - Google Patents

Description

one

The invention relates to mechanical engineering and can be used for automatic loading of piece blanks in bearing, watch, electronic, electrical, etc. productions.

The hopper loading devices of hydrodynamic action are known, in which parts are transported under the action of a hydrodynamic fluid aperture, which is driven in a circular motion by rotating the impeller, which includes a screw tray l on the generatrix of the surface.

In the known device does not provide with reliable transportation of light parts. |

Bunker loading devices of hydrodynamic action are also known, consisting of a liquid-filled bowl with a screw tray for single-piece delivery of parts and a crush: driven vial to communicate fluid to the rotational movement 2.

In the known devices, the impeller is made in the form of a flat wheel with radial vanes located in the upper part of the working volume of the bowl, and the screw tray is installed with an annular gap between its outer shoulder and the side wall of the bowl. This implementation leads to a significant reduction in the useful volume of the bunker and, consequently, to the need to frequently load up its work process, which complicates the technical maintenance of the device.

In addition, for the movement of fluid in the loading (working) space of the bowl, intensive rotation of the impeller is required, with which the turbulence in the area of the screw tray is increased and a significant pressure drop occurs in the radial direction. This makes it difficult to orient light parts as they move through the screw tray.

The aim of the invention is to improve the reliability of the issuance of parts in the oriented position and increase the useful

the volume of the bowl while maintaining its overall dimensions.

This is ensured by the fact that the impeller is located on the periphery of the thicket, and the screw tray is located inside the impeller with an annular gap between its outer collar and the inner forming surface of the impeller. The impeller is made in the form of a ring with blades clinging to the side of the bowl with blades on its cistern, installed on at least one bearing around the bowl, and is equipped with a toothed crown connected with at. odom

Ma FIG. 1 shows the proposed bunker loading device, general view; in fig. 2 is a section along A-A in FIG. one

The device consists of a liquid-filled chip 1, a screw tray 2, an impeller 3, and an electric motor 4.

The ratchet is made in the form of a ring 5 which bears over the side of the bowl 1 with blades 6 on its lower end, is mounted on at least one bearing 7, for example rolling, and is equipped with a gear crown 8 connected with a drive.

The screw tray 2 is installed inside the impeller 3 with an annular gap between its outer shoulder and the inner forming surface of the impeller. The upper turn of the screw tray 2 is adjacent to the outgoing vibrating channel 9. The bottom of the bowl in the central part is made conical.

The device works as follows. By means of the impeller 3, driven in rotation from the electric motor 4, the fluid in the bowl is connected in a circular motion about the vertical axis of the hopper. In this case, a serial flow arises in the liquid, directed in the lower part of the bowl from the periphery to the center. Parts are poured into a bowl in bulk. Under the action of the meridian flow, they concentrate in the central part of the bowl on and around the conical bottom surface.

At the same time, peripheral parts come under the action of circular flows of liquid to the screw tray. As they are expelled from the conical bottom surface under the action of the CTBiiBM, the following parts, etc., lower the weight forces.

In the proposed device, the impeller acts directly on a much larger volume of fluid, which provides a more uniform and smooth dam in the loading space h in the area of the screw tray, even when

585044

relatively low rotational speeds of the impeller. Due to this, conditions are improved for the orientation of the parts on the tray,

In the area of the screw tray located inside the impeller, the fluid moves at a lower pressure drop in the radial direction, which helps to maintain the given orientation of the details. In the proposed device, the reliability of dispensing parts in the oriented position is increased.

In addition, due to the location of the impeller on the periphery of the bowl, the central zone of the working space is freed, in which the details are concentrated in the process of the device operation under the action of meridional circulation. This makes it possible to simultaneously place more parts in a bowl, i.e. eliminates the need for frequent reloading of the bunker during operation.

Claims (3)

1. The bunker loading device of hydrodynamic action, consisting from a liquid-filled bowl with a screw tray for single-piece g delivery of parts and impeller with a drive for fluid communication rotational movement, it is obvious that, in order to increase the reliability of the issuance of parts in the orientated position and increase the useful volume of the bowl while maintaining its overall dimensions, the impeller is located on the periphery of the bowl, and the screw tray is inside impeller with an annular gap between its outer shoulder and the inner forming surface of the impeller. 2. Device by. p.1, merging with the fact that the impeller is made in the form of a ring that clips to the side of the bowl with shoulder blades on the bottom of it. 3. The device according to paragraphs. 1 and 2, distinguished by the fact that the impeller is mounted on at least one bearing encompassing the bowl and gearing associated with the drive. Sources of information taken into account in the examination: 1. USSR author's certificate No. 211276, cl. B 23 (7 / O8, 1966. 2. USSR inventor's certificate No. 379364, cl. B 23 Q 7/08, 1971. -f Fig .. 2