JPS5933501Y2 - Sorting equipment for fruits such as "strawberries" - Google Patents

Description

[Detailed description of the invention] This invention provides a device suitable for sorting perishable fruits, especially strawberries, etc., which require freshness, by grain size. The main feature is that the material is transferred in a gradual manner without rotation.

The following description will be given with reference to the embodiment shown in the drawings. Reference numerals 1 and 1' denote screw shafts which are rotated by a motor M on both the left and right sides, and the markings 2 are formed in a shape that gradually opens in one direction.

And an endless roller rail 3 is placed inside the screw shafts 1 and 1'.
is provided so that its upper horizontal portion 3a is along the screw shaft 1°1', and both ends of a shaft rod 4 have rollers 5 pivotally attached to each corresponding mark 2 of both screw shafts 1, 1'. 4a, and the rollers 5 at both ends are housed in the roller rail 3 to form a grid-like particle selection surface S. The upper horizontal part 3a and the screw shafts 1, 1
The shaft rods 4 that have come out of the position are successively pushed and housed in the roller rail 3 in a convex shape so as to return to the starting end of the upper horizontal portion 3a.

Furthermore, a fruit transfer/dropping device 6 such as a transfer conveyor is provided above the starting end side, and a hopper 7 for each sorting size is provided below the grid-like particle selection surface S.

In addition, 8 is drawn out to the starting end side and rotates the spiral shaft 4 one by one.
1', in this example, a horizontal arm 9 with a restoring spring, which has an extrusion piece 9a at its tip that can be bent up and down by a joint 9b, is connected to a cylindrical cam mechanism driven by a motor M. 10 is reciprocated, and when the shaft rod 4 is projected, the shaft rod 4 is pushed out in the advancing direction by the push-out piece 9a, and both ends of the shaft rod 4 are smoothly engaged with the markings 2 of the screw shafts 1, 1'.

Now, when motor M is started, the screw shafts 1.1' on both the left and right sides
Each shaft rod 4 has both ends engaged with the marking 2 by interlocking rotation.
The fruit F is moved over the marking 2 with the sliding of the roller 5, forming a gradually opening grid-like grain sorting surface S. There, the fruit F is transferred to a fruit transporting and dropping device 6 such as a transporting conveyor.
When supplied, the particles fall one after another onto the starting end of the grid-like particle selection surface S.

In order to prevent fruit F from being damaged, it is desirable to form an elastic layer on the belt surface of the transfer conveyor and to provide a chute at the falling part.

Now, the fruit F that fell on the grid-like grain sorting surface S is
Since the shaft rods 4 constituting the fruit F move in a gradual opening manner, the fruit F is sieved by the spacing of the shaft rods 4 according to the grain size, that is, the grid spacing, and falls into the hopper 7 for each sorting size provided below, and is weighed. It is sent to a boxing device, etc.

In order to reduce the impact of falling into the hopper 7,
It is desirable to provide a guide plate 11 with an elastic layer 11a formed on the surface inside the hopper 7 and to line the inner wall of the hopper 7 with an elastic layer 11b.

On the other hand, the screws*ltN, 1' and the respective shaft rods 4 which have come off the upper horizontal part 3a of the roller rail 3 are guided into the roller rail 3 housed in a dowel shape and are pushed in turn. It returns to the starting end side of the upper horizontal portion 3a and is again engaged with the markings 2 of the screw shafts 1, 1'.

At this time, if the shaft sending device 8 as described above is provided, the shaft 4 can be smoothly pushed onto and engaged with the symbol 2.

The present invention is as described above, and the shaft rod 4 forming the grid-like particle selection surface S
does not rotate itself, but is moved in a gradual manner over the marking 2 with the sliding of rollers 5 pivoted at both ends, so that so-called static sorting is possible, and mechanical tentacles are not used. We succeeded in minimizing the damage to the fruit F. In addition, the shaft rod 4, which has come off the upper horizontal part 3a, that is, the grid-like grain sorting surface S, moves in the roller rail 3 in a concave shape and is fed out to the starting end side again. Since the gradually opening particle selection surface S is formed, it is possible to reduce costs and simplify the structure through rational use of power.

[Brief explanation of the drawing]

The drawings show an embodiment of the present device, with FIG. 1 being a perspective view and FIG. 2 being a longitudinal side view. 1.1'... Spiral axis, 2... Facial expression, 3.
... Endless roller rail, 3a ... Upper horizontal part thereof, 4 ... Axis bar, 4a ... Both ends thereof, 5 ... Roller, 6... Fruit transfer/dropping device, 7... Hopper, 8...
・Axle rod sending device, 9...Horizontal arm, 9a...
...The tip extrusion piece, 9b...The joint,
10... Cylindrical cam mechanism, S... Grid sorting surface, M... Motor, F... Fruit, K... Axis Bar spacing (grid spacing).

Claims (1)

[Claims for Utility Model Registration] 1. Screw shafts 1 and 1' each having markings 2 gradually opening in one direction on both the left and right sides are provided so as to be driven by a motor M. , 1', an endless roller rail 3 is provided with the upper horizontal portion 3a along the inner side of both screw shafts
, 1' are engaged with both ends 4a of a shaft 4 having rollers 5 pivotally attached to both ends thereof, and the rollers 5 are housed in the roller rail 3 to form a grid-like particle selection surface S, By the rotation of both screw shafts 1.1', each shaft rod 4 forming the grid-like grain sorting surface S is moved in a gradual manner along the width of the marking 2 with the sliding of the roller 5, and the upper side The shaft rods 4 that have come off the horizontal portion 3a and the screw shafts 1, 1' are pushed in turn and are moved back to the starting end of the upper horizontal portion 3a in a convex shape on the roller rail 3.
A sorting device for fruits such as strawberries, which is housed in a container, and is equipped with a fruit transfer/dropping device 6 above the starting end side, and a hopper 7 for each sorting size below the grid-like particle sorting surface S. . 2. The device for sorting fruits such as strawberries as set forth in claim 1 of the utility model registration claim, in which the width of the markings 2 of the screw shafts 1, 1' are formed in a gradual manner at predetermined intervals.