JPH0231871A - Automatic sorting device - Google Patents

Abstract

PURPOSE:To simplify the structure of the title device and also to miniaturize it by executing such work that a material to be sorted is transferred to a weigher and thereafter transferred to a hopper for containing the material at every weight with one transferring means fitted with the buckets. CONSTITUTION:When a material (a) to be sorted is placed on the upper side of a transferring means 1, the material (a) is transferred to the turning direction of the transferring means 1 and freely falls from the horizontal transfer end by gravity and is shifted on the comb-shaped weighing base 4a of a weigher 4. When the material is weighed with the weigher 4 and thereafter turned and reversed together with the transferring means 1 in the transfer end thereof, the ensuing comb-shaped bucket 2 is crossed to the weighing base 4a and passed. At this time, the material (a) on the weighing base 4a is scooped up with the bucket 2 and horizontally retransferred. Then when the bucket 2 reaches the prescribed position of the hopper, the bucket 2 is opened on the basis of a signal sent from the weigher 4 by a controlling means and the material (a) to be sorted falls into the hopper 7 from the bucket 2 and is sorted at every weight and contained in the hoppers 7.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an automatic sorting device for sorting fresh flowers, agricultural products, etc. according to their length or weight, and in particular to an automatic sorting device for automatically sorting objects to be sorted according to their weight. This invention relates to an automatic sorting device that is designed to be able to absorb water.

[Conventional technology]

Conventionally, as an automatic sorting device for agricultural products, etc., for example, Japanese Patent Application Laid-Open No. 54-125055 and Japanese Patent Application Laid-Open No. 1983-1982 are disclosed by the applicant of the present application.
There are devices disclosed in Japanese Patent Application Laid-Open No. 9-4480, Japanese Patent Laid-Open No. 61-278388, and the like. Each of these devices is a device for sorting agricultural products according to their length. Furthermore, as an apparatus for sorting agricultural products and the like according to their weight, there is an apparatus disclosed in Japanese Patent Application Laid-Open No. 102876/1987, also filed by the applicant of the present application.

[Problem to be solved by the invention]

In each of the above-mentioned sorting devices, when sorting objects by length, the objects to be sorted are left on the transfer means while being transferred to the hopper by the transfer means. The length can be measured using a sensor or the like, and the material can be directly transported to a predetermined hopper for each length using a transport means, so that sorting work can be performed using a single transport means. However, in order to sort the objects to be sorted according to their weight, the apparatus described in the above-mentioned Japanese Patent Application Laid-Open No. 102876/1980 is not suitable.
In order to measure the weight of the items to be sorted, the items to be sorted are first transferred from the transport means to a weighing scale, their weight is measured, and then transferred again to each hopper etc. sorted by weight using another transport means. Therefore, it was necessary to arrange two transfer means before and after the rll meter, which made the device complex and large, requiring a large installation space and increasing manufacturing costs. .

In view of the above-mentioned problems, the present invention is an automatic sorting device for automatically sorting agricultural products, etc. according to their weight. The present invention aims to provide an automatic sorting device that can rationalize the space and manufacturing cost of the device.

[Means to solve the problem]

In order to solve the above problem, the automatic sorting device according to the present invention includes a transfer means that rotates endlessly for transferring the objects to be sorted to the mW meter, and a horizontal transfer end below the horizontal transfer end of the transfer means. A weighing scale has a comb-shaped weighing platform arranged at a position where it can place objects to be sorted that have been transferred by a means and have fallen freely from the horizontal transfer end; At the transfer end, a comb-shaped packet intersects with the comb-shaped portion of the weighing platform to scoop up and hold the material to be sorted on the weighing platform so that it can be horizontally transferred, and is also movable toward the outside of the transfer means. an automatic packet opener for opening the bucket; a control means for controlling the automatic bucket opener according to a signal from the weighing scale; The bucket is further characterized in that the bucket is attached to the transporting means at the rear in the transporting direction, and at the horizontal transporting end, the front part is attached to the transporting means in the tangential direction of the transporting means. This device uses a device that protrudes from the top and passes across the weighing platform of the weighing scale, thereby scooping up objects to be sorted on the weighing platform.

[Effect]

The automatic sorting device according to the present invention has the above-mentioned configuration, and when the object to be sorted is placed on the upper side of the transfer means, the object to be sorted is transferred in the rotating direction of the transfer means and freely falls from the horizontal transfer end due to its own weight. The ffi!
After being weighed by the weighing machine, the objects to be sorted on the weighing platform are The objects to be sorted are scooped up by the bucket and transferred horizontally again, and the control means opens the bucket when the bucket reaches a predetermined hopper position based on the signal from the weighing scale, so that the objects to be sorted are transferred from the bucket into the hopper. They are sorted by weight and stored in a hopper. Furthermore, by attaching the bucket to the transfer means at the rear thereof, by simply rotating the transfer means, the bucket at the horizontal transfer end of the transfer means is rotated in a state protruding forward in the tangential direction of the transfer means, and the comb is rotated. When passing through the weighing platform, the objects to be sorted on the weighing platform are automatically scooped up by a bucket and transported horizontally again to the hopper.

〔Example〕

Hereinafter, the present invention will be explained in more detail based on the accompanying drawings.

FIG. 1 schematically shows an automatic sorting device according to the present invention. In the figure, 1 is a transfer means such as an endless rotary chain belt stretched between sprockets located on both sides in the horizontal direction. Buckets 2 are attached to the transfer means 1 at regular intervals. The bucket 2 is formed in a comb shape, and its rear part is attached to the transfer means 1, so that it travels in parallel with the transfer means 1 during horizontal transfer, and in the tangential direction at the horizontal transfer end of the transfer means 1. The bucket is designed to be rotated and reversed together with the transfer means 1 while protruding forward, and the transfer means 1 is rotated by an automatic bucket rotator 3 installed at a position corresponding to each hopper 7 installed below the transfer means 1. It is configured to be able to open downwardly toward the outside, that is, toward the hopper 7. A weight scale 4 is installed below the horizontal transfer end of the transfer means 1, and the weight scale 4 has a weight scale 4 through which the feeder 2 protruding from the transfer means 1 passes, at the horizontal transfer end of the bucket 2. A weighing platform 4a is provided as a mounting section for objects to be weighed, which is located within the range where the bucket is passing and is formed so that it can intersect with the comb-shaped section when the bucket passes through.

Furthermore, the bucket 2, which remains open, is transferred to the other horizontal transfer end of the transfer means 1, which is above the horizontal transfer end in the case of the one on the side of the image, after dropping the objects a to be sorted into the hopper 7. Bucket return means 6 are provided for returning the bucket to its original state parallel to the means 1. Furthermore, a bucket position detector 11 is provided at a suitable rotational position of the transfer means 1 to detect the state of the bucket 2 in order to control opening of a specific bucket 2 at a predetermined hopper position. As mentioned above, below the transfer device 1, there is a hopper 7 (installed) for storing the weighed material a.
Furthermore, in the illustrated embodiment, a length detector 10 is provided above the transport means 1 for measuring the length of the object to be sorted a.

Next, to explain the operation of sorting objects a, such as fresh flowers and agricultural products, using the automatic sorting device according to the present invention, first, the objects a are transferred to the horizontal transfer section above the transfer means l. It is placed between each bucket 2.2 attached to the transfer means 1 from above. For example, as shown in FIG. 4, the bucket 2 has an axotiment 22 at the rear end of a bucket support plate 21, which is formed by pivoting the bucket 2 on a belt 1 or the like serving as a transfer means.
By attaching the bucket 2 to the horizontal transfer end of the chain belt 1, the bucket 2 is attached to the chain belt 1 so as to rotate together with the transfer means 1 while protruding forward in the tangential direction thereof.

The bucket 2 has a rotating shaft 2 attached to the bucket support plate 21.
The bucket mounting shaft 23 fixed to the bucket mounting plate 25 pivotally mounted at A plurality of unit buckets (2a) in which bucket parts 2'' are inverted and arranged in a row so as to face upward in the lower horizontal transfer part and have a shape capable of holding objects to be sorted.
are arranged in parallel to the traveling direction of the transfer means 1, perpendicular to the mounting shaft 23, and are configured in a comb shape. The bucket mounting plate 25 is pivotally attached to the brush saw I-support plate 21 at a rotating shaft 24, and is elastically biased rearward in the rotating direction of the transfer means 1 by a brush saw I-rotating spring 28, so that the bucket mounting plate 25 is rotated around the rotating shaft 24. A spring 27 is attached in a direction opposite to the rotation direction of the bucket mounting plate 25 about the rotation axis 24.
Rotation is restricted by engagement with the stopper 26 which is elastically biased, and the bucket 2 is held in a state parallel to the transfer means 1. The hekea 1-2 is attached to the base 2' rear end of the front and rear buckets 2.2 and the heket part 2 of the forward and rear buckets 2.
By attaching them so that they substantially overlap each other, the upper part of the base 2' is used as a transfer and placement part A for the objects to be sorted a.

As shown in FIG. 3, the object to be sorted placed on the placement section A is transferred to the horizontal transfer end by the rotation of the transfer means 1, and is further transferred. Due to the rotation of the means 1, the bucket 2 falls freely from the mounting part A due to its own weight at the transfer end, and is transferred onto the weighing table 4a of the weighing scale 4 located below the transfer end (Fig. 3(a) )~(d)
). As shown in FIG. 5, for example, the weighing scale 4 has a weighing base 4a having a comb-shaped portion 41 that can intersect with each of the unit buckets 2a arranged in a comb-shape of the buckets 2. 2 is rotated and reversed together with the transfer means 1 at the horizontal transfer end position so that it can pass through the weighing platform 4a, and at the outside position, the bucket 2 is formed in a shape so that it can pass therethrough similarly to the weighing platform 4a. A guide 42 is provided to ensure that the objects a to be sorted that have fallen from the transfer means 1 are transferred onto the weighing platform 4a.

As shown in FIGS. 3(e) and 3(d), the object a to be sorted transferred onto the weighing table 4a and weighed by the weight scale 4 is moved by the following bucket 2 as the transfer means 1 rotates. When it crosses and passes the comb soft part 41 of the weighing platform 4a while being inverted together with the transfer means 1 at the horizontal transfer end, it is scooped up by the bucket part 2'' that is inverted and faces upward, and the material inside the bucket part 2'' is In this state, as the transfer means 1 is rotated again, the lower horizontal transfer section is moved away from the weighing scale, and is transferred in one direction to the hopper.

The object to be sorted a is held in the bucket 2 and transported to a predetermined hopper 7 by the control means 5 based on the weight data measured by the weighing scale 4, and when the bucket 2 reaches the relevant hollow parts position, By operating the bucket automatic rotator 3 provided corresponding to the hopper 7 to open the bucket 2, the bucket 2 falls from the bucket 2 into the hopper 7 and is stored therein.

The opening operation of the rack at each of the above-mentioned hollow parts positions is performed by a stopper release roller which is provided as an automatic bucket rotation device 3 under the transfer means 1 in correspondence with each hopper 7 so as to be freely retractable in the vertical direction, as shown in FIG. 6, for example. 31 is positioned upward when a predetermined bucket 2 passes, and as the bucket 2 advances as the transfer means 1 rotates, the rotation of the packet mounting plate 25 on which the bucket 2 is pivoted is restricted. The stopper 26 is brought into contact with the stopper 26 and tilted backward in the traveling direction to release the engagement between the stopper 26 and the bucket attachment plate 25, and the packet attachment plate 25 rotates around the rotating shaft 24. By enabling the state, the bucket 2 is opened to the outside of the transfer means 1, that is, downward, by the spring 28, and the objects a to be sorted supported by the bucket part 2'' are moved to the hopper 7.
It falls and is stored inside.

The control means shown in FIG. 2 controls the operation of each part for weighing the above-mentioned objects to be sorted and storing them in each hopper 7 according to their weight. That is, a data signal regarding the weight of the object to be sorted a weighed by the weighing scale 4 is input from the weighing scale 4 to the control unit 51, and when the length detector 10 is also used, the data signal is input to the length detector 10. A data signal regarding the length of the object to be sorted a measured by the method is also sent to the control section 51 at the same time.

The control unit 51 compares pre-input weight and length sorting standard data with the data from the weighing scale 4 and the length detector 10 to determine the hopper position to be stored. The object to be sorted a by the signal from
When the bag 1-2 reaches the position of the hollow parts where the material is to be stored, the automatic bucket opener 3 provided corresponding to the hopper 7 is activated to open the bucket 2 and place the material to be sorted into the hopper 7. By falling and storing, the object to be sorted a
can be sorted based on their weight and length and stored in each hopper 7.

Next, the object to be sorted a is opened downward toward the hopper 7.
The bucket 2 which has been dropped into the hopper 7 advances as the transfer means 1 rotates, reaches the bucket return means 6, and is returned to its original state parallel to the transfer means 1 by the return means 6. It will be done. As shown in FIG. When the bucket passes through, a return lever 29 protruding from the packet mounting plate 25 is set to come into contact with a bucket reversing roller 61 provided inside the transfer means 1 as a bucket return device 6, and in this contact state. As the bucket 2 continues to advance toward the bucket 1, the return lever 29 is pushed by the brush reversing roller 61, the packet mounting plate 25 rotates around the rotating shaft 24, and the stopper 26 is moved again by the action of the spring 27. By engaging the mounting plate 25, the bucket 2 returns to its original state parallel to the transfer means 1 and continues to advance as the transfer means 1 rotates.

By repeating the above-described operations, the objects to be sorted a are automatically and efficiently sorted based on their weight and, in the above embodiment, their length.

According to the above-mentioned automatic sorting device according to the present invention, the object to be sorted a
In addition, it is possible to transfer the sorted material a after weighing with the weighing scale 4 to each hopper 7 by weight using only one transfer means 1, Stopper release roller 3 installed corresponding to
1 to the stopper 26 attached to the bucket support plate 21 of the bucket 2, the bucket 2 can be opened and the object a to be sorted can be dropped into the hopper 7, and the object a can be dropped into the hopper 7. As the bucket 2 moves forward, the bucket 2 opens and protrudes outward from the transfer means 1 in order to drop into the bucket.
The bucket can be returned to its original state simply by bringing the return lever 29 of No. 5 into contact with the bucket reversing roller 61. It uses progression to make it extremely easy to operate. Furthermore, as in the above embodiment, a length detector for measuring the length of the object to be sorted a is provided at a suitable location on the transport means 1, and the signal from the detector 10 is processed by the control section 51. By doing so, the objects to be sorted a can be sorted into various types based not only on their weight but also on their length.

The automatic sorting device according to the present invention is transferred by the transfer means as described above, falls freely from the horizontal transfer end due to its own weight, is transferred onto the weighing platform of a weighing scale, and is weighed by the weighing scale. The main structure is that the objects to be sorted are transferred by a bucket attached to rotate together with the transfer means and dropped into the M sentencing hopper, and the shape of the bucket or the object to be sorted is There is also an automatic bucket rotator that opens the bucket that supports the object to the outside of the transfer means to drop the object into the hopper, and an automatic bucket rotator that opens the bucket to allow the object to be sorted to fall into the hopper. The structure of the bucket return means and the like for returning the bucket to its original state is not fixed to that of the above embodiment. For example, the stopper release roller 31 and the return roller 61 may be a simple bottle instead of a roller. Various structures can be adopted.

Furthermore, in the above embodiments, the objects to be sorted are transferred using the bucket base as the placement part, but by using a belt or net-like conveyor as the transfer means, the objects to be sorted can be directly placed on the conveyor. You may do as follows.

〔Effect of the invention〕

As described above, the automatic sorting device according to the present invention is used as a sorting device for sorting objects by weight, and transfers the objects to be sorted to a weight needle, transfers them onto the weight scale, and then transfers the objects to the weight scale. The structure of the device has been improved by making it possible to carry out the work of transporting the objects to be sorted after weighing them from the weighing scale to the hopper where they are stored by weight using a single transport means and a bucket attached to the transport means. This makes it possible to simplify and downsize the device, and to rationalize the installation space and manufacturing cost of the device.

[Brief explanation of the drawing]

FIG. 1 is a front view schematically showing the automatic sorting device according to the present invention, FIG. 2 is an explanatory diagram showing the signal flow of the control system of the automatic sorting device, and FIGS. 3(a) to (f) are transfer A process explanatory drawing showing the process of scooping up and transferring the objects to be sorted that have fallen from the means to the weight needle with a bucket, Fig. 4 is a perspective view of the main part showing an example of the bucket, and Fig. 5 is a diagram of the weighing platform of the weighing scale. A perspective view of the main parts showing the embodiment, FIGS. 6(a) to 6(C) are process explanatory views showing the bucket opening process, and FIGS. 7(a) to (c) are process explanatory views showing the bucket return process. . 1: Transport means, 2: Bucket, 2a: Unit bucket, 2
゛: Base, 2'': Packet section, 3: Automatic bucket opener, 4: Weight scale, 4a: Weighing platform, 5: Control means 6゜: Bucket return means, 7: Hombre, 1o: Length detector, 11
: Bucket position detector, 21: Bucket support plate,
22: Attachment, 23: Bucket mounting shaft, 24:
Rotating shaft, 25: Bucket mounting plate, 26: Stopper, 2
7: Straight bar spring, 28: Bucket rotation spring, 29:
Return lever, 31: Straight bar release roller, 41: Comb-shaped portion, 42 Ni guide, 51: Control portion, 61: Return roller, a: Object to be sorted, A: Placement portion. (C) (dry) Figure (e) (=1)

Claims (1)

[Scope of Claims] 1) A transfer means that rotates endlessly for transferring the objects to be sorted to a weighing scale, and a horizontal transfer means that is below the horizontal transfer end of the transfer means and is transferred by the transfer means. A weighing scale has a comb-shaped weighing platform arranged at a position where the objects to be sorted that have fallen freely from the end can be placed; a comb-shaped bucket that intersects with the shaped part to scoop up and hold the objects to be sorted on the weighing table and to be capable of horizontal transfer; and an automatic bucket that opens the buckets. An opening device, a control means for controlling the automatic bucket opening device based on a signal from the weighing scale, and a bucket return device for returning the bucket opened to the outside of the transfer means to its original state. An automatic sorting device featuring: 2) As a bucket, it is attached to the transfer means at the rear in the transfer direction, and at the horizontal transfer end, the front part protrudes in the tangential direction of the transfer means and passes across the weighing platform of the weighing scale, so that it can be weighed. An automatic sorting apparatus according to claim 1, which uses an apparatus adapted to scoop up objects to be sorted on a table.