SU915302A1 - Device for indexed feeding of radio components with bead or shoulders - Google Patents

Description

The invention relates to "automation of production processes, in particular, to devices for oriented supply of parts with a collar on a housing to a treatment zone", for example, radioelements with axial leads in devices for preparing them for mounting on printed circuit boards.

A device for oriented supply of parts is known. It includes a vibrodrive and a hopper ¹ with a spiral tray containing a zone of orientation of the parts in the form of a through vertical groove formed by two lateral guides [1].

However, such a device does not provide a reliable orientation of radio components with shoulder or shoulder.

Closest to the offered one is a device for oriented supply of radio components with a shoulder or shoulder, containing a hopper connected with a vibro-drive from a spiral2

the tray and the element of orientation in the form of a through groove ^ z ^].

However, the known device also does not provide a reliable orientation of radio components.

The purpose of the invention is to increase reliability.

This goal is achieved by the fact that in the device for oriented supply of radio components with a collar or shoulder, containing a vibration-controlled hopper with a spiral tray and an orientation element in the form of a through groove, the through-groove of the orientation element is bent and placed in the wall of the bunker; This one part of the through groove of the element is located above the spiral tray and the walls of this part of the through groove are inclined $ geometric axis of the bunker, and the walls of the other part of the through groove are parallel geometric axis of the bunker.

^{3 91}

FIG. 1 schematically shows the device, a general view; in fig. 2, view A of FIG. one; in fig. 3 ~ section BB in FIG. 2; in fig. 4 is a cross section of 8-B in FIG. 2; in fig. 5 "5

section GGD in FIG. 2

The device contains a vibrodrive 1 and a hopper 2 fixed on it with a spiral tray 3- The hopper 2 has 10

orientation zone a, which includes two sections — in and c, through which a through groove 5 passes in the wall 4 of the bin; 2. On the section with the spiral tray is absent and the walls of the through groove 5 smoothly pass into position 20, at which they are located parallel to the geometrical axis of the bunker 2.

For manufacturability, as well as increasing the speed of passage of 25 parts through the orientation zone, it is preferable to perform a groove without lifting, i.e. horizontal longitudinally.

On the site with a cover plate 8 with a bent edge 9, which is beveled simultaneously in the vertical and horizontal planes.

Yield hopper formed tangentially, as this is possible hydrochloric slots ₃₅ a through the hopper wall 'the latter can be provided with a clamping bracket 10,

The surface of the wall 6 of the through groove 4 is made flat at a width of not ₄₀ less than the length of the housing of the radio component 11 and parallel to the axis of the through groove. The surface of the wall 7 of the through groove is made in the form of a narrowed edge whose width L is determined by the inequality given below.

The device works as follows.

Radio components 11 under the influence of vibration of the bunker 2, communicated to it by the vibration actuator 1, move along the spiral tray 3 · When passing the IMM site to the orientation zones, most of them, turning on the collar under the action of gravity, fall down the casing between the walls 6 and 7 grooves 5 regardless of their original orientation.

5302 4

When the radio components 11 8 are rotated through the groove, the parts that did not have time to orient themselves are displaced to the edge of the spiral tray 3 and dumped into the bunker 2. In the section from the orientation zone a, where the spiral tray is missing, the final sifting of such radio components occurs, as well as the parts stuck in the hopper from the conclusions in the through groove 5, while the narrowed edge of the upper wall 7 of the through groove 5 provides the hang angle that is minimally necessary for reliable discharge of parts. The process of orientation of radio components is completed by turning them to a vertical position on the edge 9 of the lining 8.

Thus, the radio components are forced out to the edge of the spiral tray and dumped into the bunker, and the absence of the spiral tray in combination with the slope of the groove in the second section provides the final sifting of such details. The smooth transition of the walls of the through groove to the position in which they are parallel to the geometric axis of the bunker allows you to complete the process of orientation and facilitates the withdrawal of oriented parts from the hopper. The body of the radio component with this surface is made flat with a width not less than the body length of the radio component and parallel to the axis of the through groove. As the oriented radio components move between the walls of the through groove, the body of the cylindrical radio components vibrates around its axis, thereby facilitating the passage of radio parts through the groove and prevents jamming of radio components with substandard or deformed shoulder, while the effort of coaching the part is directly proportional to the length of the line of contact.

In addition, in order to increase the reliability of the elimination of radio components hanging in the guide grooves by one of the conclusions as a result of their incorrect orientation or displacement of the radio component body from the groove by the pressure of the flow of moving radio components, the wall of the through groove 7 is made in the form of a narrowed edge, the maximum

5 9H

whose width is determined by the inequality

β £ 3_ [ΐβ (αί-ρ>) + σ £ β (0 (.4 - ^) 1, (1) where a ^- is the width of the through groove; determined on the basis of size 5 of the radio component body in diameter or thickness;

cc is the angle of inclination of the through groove to the horizontal; mostly equal to 45 ^e ; No

{*> - the hang angle of unoriented radio components and the through slot, taken from the horizontal, the minimum required for reliable screening, is determined to be 30 ^e .

The use of the proposed device will improve the reliability of the defense-mounting equipment for the preparation of radio elements for 20 PCB mounting.

Claims (1)

Claim Device for oriented supply of radio components with a collar or over 12 6 arms containing a hopper connected to the vibro drive with a spiral tray and an orientation element in the form of a through groove, characterized in that, in order to improve reliability, the through groove of the orientation element is bent and located in the wall of the bunker, while one part of the through element of the orientation element placed above the spiral tray and the walls of this part of the through groove are made inclined to the geometrical axis of the bunker, and the walls of the other part of the through groove are made parallel to the geometric axis of the bunker,