Centrifugal feeding device

Abstract

A centrifugal feeding device includes a feeding unit and a guiding unit. The feeding unit includes an inner turntable, an outer turntable surrounding the inner turntable, and two rotational power sources. The guiding unit includes an outer ring wall extending circumferentially and covering the outer side of the outer turntable, a discharge guide plate extending inward from the outer ring wall to the top of the outer turntable, at least one pair of movable guide plates corresponding to the outer ring wall, and at least one drive source linking to the at least one movable guide plate. The rotational power sources enable the inner and outer turntables to rotate in the same direction but at different speeds, moving the material from the inner turntable to the outer turntable, and then rotating it to the discharge guide plate for output. This eliminates the need for vibration in material conveying, reducing material damage and clumping that could cause blockages.

Claims

1. A centrifugal feeding device, comprising: a feeding unit including an inner turntable, an outer turntable surrounding the inner turntable, and two rotational power sources that drive the inner turntable and the outer turntable respectively to rotate relative to each other; and a guiding unit including an outer support, an outer ring wall disposed on the outer support and extending circumferentially and radially covering the outer side of the outer turntable, a discharge guide plate extending radially inward from one side of the outer ring wall to above the outer turntable, at least one pair of movable guide plates disposed corresponding to the outer ring wall and located radially outside the outer turntable, and at least one drive source connected to the at least one movable guide plate, the outer ring wall defining a circumferentially extending opening, the discharge guide plate facing the opening and forming an angle with the outer ring wall, and the at least one drive source capable of driving the at least one movable guide plate to swing above the outer turntable.

2. The centrifugal feeding device as described in claim 1, wherein, The guide unit has at least one movable guide plate having a pivot portion pivotally mounted on the outer ring wall, a baffle portion extending from the pivot portion along the tangential direction of the outer turntable and located inside the outer ring wall, and a rocker portion extending outward from the pivot portion. The at least one drive source is linked to the rocker portion and can be controlled to pull and push the rocker portion to make the baffle portion swing.

3. The centrifugal feeding device as described in claim 2, wherein, The guiding unit includes two circumferentially arranged movable guide plates and two drive sources that respectively drive the movable guide plates. The outer ring wall of the guiding unit has a main wall portion that is connected to the discharge guide plate on one side and to the outer support, and two mounting wall portions that are arranged circumferentially relative to the main wall portion and connected to the outer support. The main wall portion and the mounting wall portions are spaced apart to define two gaps. The pivot portion of each movable guide plate is pivotally connected to one of the mounting wall portions, and the rocker portion extends outward through the corresponding gap. The drive sources are located on the outside of the outer ring wall and are respectively connected to the rocker portions.

4. The centrifugal feeding device as described in claim 3, wherein, When the drive source drives the movable guide plates to swing above the outer turntable, the angle between the baffle portion that is relatively close to the discharge guide plate and the corresponding wall portion along the circumference is greater than the angle between the other baffle portion and the corresponding wall portion.

5. The centrifugal feeding device as described in claim 1, wherein, The inner turntable of the feeding unit has a receiving surface surrounded by the outer turntable. The outer turntable has an outer ring surface surrounding the receiving surface and located below the discharge guide plate of the guiding unit. The receiving surface is inclined relative to the outer ring surface. The lower side of the receiving surface is lower than the outer ring surface and relatively close to the opening, while the higher side of the receiving surface is not lower than the outer ring surface and relatively far away from the opening.

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