JPH0433991Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a sorting machine for agricultural products, in which a holder for holding agricultural products is conveyed along a conveyance path, and the holder is rotated downward. In this machine for sorting agricultural products by falling, the holder is prevented from wobbling when rotated downward, and the agricultural products are allowed to fall smoothly.

(Prior art) As a sorting machine for agricultural products, agricultural products are put into a holding body, and while the holding body is conveyed along a conveyance path,
The weight is weighed by a weighing device installed on the conveyance path, and when the set weight is reached, the holder is rotated downward around the rotating shaft and the agricultural products are dropped into a predetermined position and sorted. has been done.

(Problem that the invention aims to solve) However, in conventional sorting machines, when the holder rotates downward, the holder swings unsteadily around the rotation axis, making it impossible to determine the rotation stop position. Because the holder cannot fall quickly and smoothly from the body, and during that time the holder moves forward along the conveyance path, the falling position of the agricultural products varies, making it difficult to collect the agricultural products at a predetermined position.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a sorting machine for agricultural products that can solve the problems of the conventional methods described above.

(Means for Solving the Problems) For this purpose, the present invention provides a stopper 10 that comes into contact with the container-shaped holder 3 that rotates downward as a result of weighing by the weighing device 5 to prevent the holder 3 from wobbling. It is set up. And this stopper 10
The stopper 10 has a base end 10a that contacts the side wall surface 3a of the holder 3, and a bent portion 10b that contacts the bottom wall surface 3b of the holder 3. It was installed.

(Function) In the above configuration, the agricultural products P are supplied one by one to the holder, and are weighed by the weighing device 5 while being conveyed by the endless rotary chain 2. Based on the weighing results, the holder 3 is rotated around the rotating shaft 4. The agricultural product P is sorted and dropped. in this case,
First, the side wall surface 3a of the holding body 3 is connected to the stopper 10.
When it slides into contact with the base end 10a of the holder 3, its rotation gradually stops, and when it further rotates downward, its bottom wall surface 3b hits the bent part 10b, and its downward rotation is stopped, so that the holder 3 It is prevented from swinging unsteadily about the rotating shaft 4, and the agricultural products P are reliably dropped to a predetermined position and collected.

(Example) Next, an example of the present invention will be described with reference to the drawings.

Fig. 1 is a plan view of a sorting machine for agricultural products, and Fig. 2 is a side view of a joint between a supply section and a sorting section.
It consists of a supply section C that supplies agricultural products P to this sorting section B. The supply section C consists of a supply conveyor 1 . The supply conveyor 1 consists of a right side supply section (a) and a left side supply section (b), and is installed obliquely with an upward slope toward the conveying direction. By arranging the supply conveyor 1 in this manner, the height at which the agricultural products P are placed on the conveyor 1 is lowered, making it easier to place the agricultural products P on the conveyor 1.

The sorting section B has a plurality of holding bodies 3 for holding agricultural products P mounted in two rows on the left and right on a pair of left and right endless rotary chains 2, 2 which are adjusted to a sprocket 9 arranged at the starting end thereof. Each holder 3 is conveyed to the endless rotation chains 2, 2 and circulates in the vertical direction along the conveyance path.

In this way, the sorting section B adopts a vertical circulation system,
The upper running section serves as the weighing and sorting space E, and the lower running section serves as the return space F. Also, each holding body 3
The container is shaped like a horizontally long gutter and has a concave cross section in the transport direction so as to easily hold the agricultural products P (see FIG. 4). Therefore, agricultural products P
There is almost no variation in the storage position, and the arm length L of the weight moment from the rotation axis 4 to the center of gravity position G
is constant or approximately constant, and therefore all agricultural products P can be weighed accurately.In particular, even for long agricultural products such as potatoes and carrots, the advantage is that the center of gravity can be kept approximately constant without variation. There is. Reference numeral 4 denotes a rotating shaft that spans between the endless rotation chains 2, 2, and the two left and right holders 3 are rotatably attached to this rotating shaft 4.

In FIGS. 1 and 3, 5 is the chain 2,
The weighing device is arranged in parallel on a pair of left and right support frames 6, 6 disposed along 2, and is constructed by attaching a weight 5b to the rear end of a rotary rod 5a. In addition, in parallel with the chains 2, 2, each of the above-mentioned holding bodies 3
A guide rail 8 is disposed on which a slider 7 protruding from the shaft is slidably guided, and when the slider 7 is transferred from the guide rail 8 to the tip of a rotating rod 5a bent in a fold-back shape, the rotating shaft is rotated. 4 as the center of rotation and the slider 7 as the point of action, when the weight moment on each holder 3 side is heavier than the weight moment set by the weight 5b, the rotating rod 5a rotates in the direction of flipping up the weight 5b, The slider 7 loses its support and each holder 3 rotates downward, and the agricultural products P stored therein are dropped and sorted.

10 is a stopper that prevents the holding body 3 from rotating downward by a predetermined angle or more;
A detailed explanation will be given with reference to FIGS. 4, 5, and 5.

This stopper 10 is attached to a support fitting 14 fixed to the rotating shaft 4 with a bolt 12, and includes a base end 10a and a bent part bent from the tip of the base end 10a toward the holder 3. It is formed into a key shape from 10b. A cushion sheet 11 as an elastic body is attached to this inner surface, that is, the contact surface that comes into contact when the holding body 3 rotates downward. When the holder 3 rotates downward,
First, the side wall surface 3a of the holding body 3 is connected to the stopper 10.
The rotation is gradually stopped due to the frictional force of the sliding contact, and when it rotates further downward, the bottom wall surface 3b comes into contact with the bent portion 10b, and the rotation is completely stopped.

This sorting machine has the above-mentioned configuration, and its operation will be explained next.

One agricultural product P is loaded onto each of the right side supply section A and the left side supply section B of the supply conveyor 1 and transported, and one piece each is supplied to the two left and right holders 3. These holders 3 are transported by a pair of left and right endless rotation chains 2, 2, and when the slider 7 slides on the guide rail 8 and is transferred to the tip of the rotating rod 5a, the weight of the holder 3 changes. carried out, rotation axis 4
If the weight moment on the holding body 3 side centered on and with the slider 7 as the point of action is heavier than the set weight,
The holder 3 rotates downward around the rotating shaft 4, and the agricultural products P fall. In this case, first, the side wall surface 3a
comes into sliding contact with the base end 10a of the stopper 10, and its rotation gradually stops due to the frictional force of the sliding contact.As it rotates further downward, its bottom wall surface 3b comes into contact with the bent portion 10.
By hitting b, the rotation stops completely. Therefore, when the holder 3 rotates downward, the rotation axis 4
There is no unnecessary swinging around the agricultural product P, and the agricultural product P is reliably dropped to a predetermined position and collected.

(Effect of the invention) As explained above, according to the invention, the holding body 3
When rotating downward and dropping the agricultural product P,
The holding body 3 does not swing unnecessarily about the rotating shaft 4, and the agricultural products P can reliably fall to a predetermined position and be collected.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is a plan view of the agricultural product sorter, Figure 2 is a side view of the joint between the supply section and the sorting section, Figure 3 is a partial perspective view of the sorting section, Figure 4 is a side view of the holder, and Figure 5. is a plan view taken along line A-A in FIG. 4; 2...Endless rotating chain, 3...Holding body, 3a...
...Side wall surface, 3b...Bottom wall surface, 4...Rotation shaft, 5...
... Weighing device, 7 ... Slider, 8 ... Guide rail, 10 ... Stopper, 10a ... Base end, 1
0b...Bending portion, 11...Elastic body, P...Agricultural products.

Claims (1)

[Scope of utility model registration request] A rotating shaft 4 spans a pair of left and right endless rotating chains 2, a container-shaped holder 3 for agricultural products rotatably attached to the rotating shaft 4, and a rotating shaft 4 arranged parallel to the endless rotating chains 2. A guide rail 8 is provided for slidingly guiding the slider 7 protruding from each of the holding bodies 3.
Then, weigh the weight moment of the holding body 3 with the rotating shaft 4 as the center of rotation and the slider 7 as the point of action, and based on the weighing result, rotate the holding body 3 downward around the rotating shaft 4. and a weighing device 5 for dropping and sorting the agricultural products stored therein, and a stopper 10 that comes into contact with the holder 3 rotated downward to prevent the holder 3 from wobbling. is this holder 3
The stopper 10 has a base end 10a that comes into contact with the side wall surface 3a of the holder 3, and a bent part 10b that comes into contact with the bottom wall surface 3b of the holder 3.
A sorting machine for agricultural products characterized by being equipped with 1.