JP2007245032A - Weight sorting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a weight sorting apparatus of a simple mechanism in which a weight measuring hopper of the weight sorting apparatus is abolished by making easy the supply of bodies to be sorted to a sorting device, preventing the generation of impact sound and installing a locking projection providing a weight measuring part in a lining up device. <P>SOLUTION: In the weight sorting apparatus provided with a size sorting device, the lining up device lining up a large number of the bodies to be sorted in one line and intermittently feeding them, a weight measuring hopper part and a sorting device, and arranging them in series, the size sorting device is constituted of two cylindrical slope bodies arranged at a predetermined interval of a downgrade, the lining up is arranged in a up-grade at a predetermined interval and provided with two sheets of locking plates provided with locking projections planted on the inner side and upper surface at a predetermined interval, and a transfer plate arranged between the two sheets of the locking plates and planted with transfer projections at predetermined intervals, and a transfer means provided with a crank shaft rotating supported on a rotary shaft. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a weight sorting device that classifies small objects such as mini tomatoes, small fruits such as kumquat and plum, agricultural products or marine products according to their weights.

As the above-mentioned apparatus, an apparatus for sorting fruits such as peaches, tangerines, and seafood such as shrimp by weight is known (Japanese Utility Model Laid-Open No. 1-124278).
In the weight sorting device, the weight of the sorting object is detected and sorted by a weight provided on the balance using a balance.
However, when the weight of the object to be sorted is mechanically selected using a balance, the balance of the balance is lost due to the attachment of dust, dust, etc. to the tray on which the object to be sorted is placed. Since it becomes impossible to measure, there is a problem of causing a malfunction.
Japanese Utility Model Publication No. 1-124278

There has also been proposed an apparatus for improving the weight sorting apparatus for sorting objects by using the above-described balance, and electrically detecting and sorting the weight of the object to be sorted using a load cell (Japanese Patent Laid-Open No. 2000-117198).
This apparatus will be described with reference to FIG. 13. The conveyor includes a large number of trays, and each tray has a base attached to the conveyor, and a tray 06 is swingably supported at a tip portion of a column 08 provided on the base. Since the swing fulcrum P of the tray 06 is shifted to the opposite side of the storage portion 04 with respect to the center of gravity G of the tray 06, when the slider 010 is moved to the left by the rotary solenoid 09, one end side of the slider 010 and the tray 06 The holding state with the support unit 011 attached to the tray is released, the tray 06 falls to the storage unit 04 side until it abuts against the stopper 012, and the article S placed on the tray 06 falls to the storage unit 04. .
When the weight of the article picked up based on the change in weight before and after picking up the article is calculated by a weigh scale, the image is moved while being placed on the tray 06 by the conveyor having the tray 06 on which the article S picked up from the weight scale is placed. When the form of the article is detected by the processing unit, the grade of the article is determined for each tray 06 based on the data supplied from the scale, and a processing signal is sent to the control unit (not shown) according to the grade. It is designed to output. The weigh scale measures the individual weights of a large number of articles, inputs the weighing data to the control unit, and a specific tray 06 on the conveyor moves to the storage unit 04 side in response to a signal from the control unit. By falling down, the article S placed on the tray 06 operates so as to be stored in a predetermined storage unit 04 corresponding to its weight. At this time, when the slider 010 is moved to the left by the rotary solenoid 09, the engagement state between the slider 010 and the support portion 011 attached to one end of the tray 06 is released, and the tray 06 is stored until it comes into contact with the stopper 12. The tray 06 falls to the side of the section 04 and enters the return path with the tray 06 released from the locked state with the slider 010 being tilted. Therefore, when the rotary solenoid 09 is rotated in the reverse direction, the slider 010 is moved in the tray 06 direction.
JP 2000-117198 A

  In the above apparatus, when the tray 06 is tilted by the operation of the rotary solenoid 09 to come into contact with the stopper 012 or when the support portion 011 and the slider 010 are disengaged, the support portion 011 is caused by the shift of the return timing of the tray 06. And the rail of the slider 010 collide with each other.

Moreover, the apparatus of Unexamined-Japanese-Patent No. 2004-89920 is proposed conventionally also about what provided the weight measurement hopper part before the above-mentioned sorting apparatus.
JP 2004-89920 A

  In such an apparatus, since the means for supplying the object to be sorted was not provided in the weight measurement hopper, it required manual labor for sorting.

  SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems of the conventional apparatus. In addition, the weight measuring hopper is provided with an aligning device that automatically supplies the weight measuring hopper while aligning with the size selecting device. A weight sorting apparatus in which the supply of objects to be sorted is automated to the section is provided.

  Furthermore, the alignment device is provided with a locking projection provided with a weight measuring unit, thereby eliminating the weight measuring hopper of the weight selecting device and providing a simple weight selecting device.

  The present invention is a weight sorting device in which a size sorting device and a large number of sorting objects are arranged in a row and includes an alignment device, a weight measuring hopper, and a sorting device that are intermittently fed, and these are arranged in series. The size selecting device is composed of two cylindrical slope bodies arranged with a predetermined interval of a downward gradient, and the aligning device is arranged with an ascending gradient at a predetermined interval, and is arranged on the inner upper surface thereof. Two locking plates having locking projections planted at intervals, and a feeding plate arranged between the two locking plates and having feeding projections planted at a predetermined interval, The first means for solving the problem is that the feeding means is provided with a crank arm that is pivotally supported by a rotating shaft below both ends.

  Further, the present invention is a weight sorting apparatus including a size sorting device, an sorting device in which a large number of sorted objects are arranged in a row and intermittently sent, and a sorting device, which are arranged in series. The size selecting device is composed of two cylindrical slope bodies arranged with a predetermined interval of a descending slope, and the aligning device is arranged with an ascending slope at a predetermined interval on the inner upper surface thereof. Two locking plates that are planted at a predetermined interval and provided with a locking projection provided with a weight measuring portion, and a feed plate that is disposed between the two locking plates and has a feeding projection planted at a predetermined interval And a feed means provided with a crank arm that is pivotally supported by a rotating shaft below both ends of the feed plate.

According to the present invention, the following effects can be obtained.
(1) Since the objects to be sorted are sorted into those having a predetermined size or more and can be automatically supplied to the sorting apparatus while the objects to be sorted are aligned, the supply efficiency to the sorting apparatus can be improved.
(2) It is possible to prevent the generation of impact sound by the air shock absorber.
(3) Since it is possible to easily configure a weight sorting apparatus by providing a predetermined number of sorting apparatuses at the site, it is possible to easily meet a user's request.
(4) By providing the alignment device with a locking projection provided with a weight measuring unit, the weight measuring hopper of the weight selecting device can be eliminated and a simple mechanism can be configured.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing an entire weight sorting apparatus as an embodiment of the present invention, FIG. 2 is a top view of an aligning apparatus that automatically supplies the weight sorting apparatus while aligning with the size sorting apparatus, and FIG. 4 is a front view of the feeding means of the aligning device, FIG. 5 is a side view of the feeding means of the aligning device, FIG. 6 is a perspective view of the crank feeding means of the aligning device, and FIG. FIG. 8 is a side view of a state in which the plunger of the tray portion and the plunger portion is lowered, FIG. 9 is a side view of the state in which the plunger of the tray portion and the plunger portion is raised, and FIG. FIG. 11 is a side view showing the whole weight sorting apparatus as a second embodiment of the present invention provided with a locking projection provided with a weight measuring unit, and FIG. , Provided with a locking projection with a weight measuring part It is a partial perspective view of the feeding means of the device.

  As shown in FIG. 1, the weight sorting apparatus of this embodiment includes a size sorting apparatus A1 and a large number of objects to be sorted arranged in a line, and an intermittently feeding apparatus A2, a weight measuring hopper B, and a weight. And a sorting device C arranged on the outlet side of the measurement hopper B, which are arranged in series.

  As shown in FIGS. 2 and 3, the size sorting device A1 is composed of two cylindrical slope bodies 100, 100 arranged in a downward slope and arranged at a predetermined interval. The interval between the slope bodies is appropriately selected according to the size of the objects to be selected, and the object F to be selected which is smaller than the standard falls from the interval and is discharged from the apparatus at this stage. Reduce.

As shown in FIG. 3, the aligning device A2 positions the starting end below the end of the size selecting device A1 and arranges the entire device in an ascending gradient.
In the aligning device A2, two plate-like locking plates 200, 200 arranged at an interval equal to or smaller than the size of the object to be sorted F are arranged in an ascending gradient, and on each inner upper surface of the locking plate 200, Locking protrusions 300, 300 are implanted at intervals of approximately the same diameter as the object to be sorted, and the locking protrusions 300 have a predetermined inclination even though the locking plate 200 has an upward slope. Prevents falling from position.

As shown in FIGS. 4, 5 and 6, a feeding means 400 is disposed between the two plate-like locking plates 200, 200 as shown in FIGS.
On the upper surface of the feed plate 401 constituting the feed means 400, feed teeth 402 are implanted at intervals larger than the diameter of the object to be sorted.
The feeding unit 400 is provided with a pair of timing rollers 403 and 403 driven via a chain C driven by a motor M, and a timing belt 404 is suspended between the timing rollers 403 and 403. Crank arms 406 and 406 and link arms 407 and 407 are connected to the shaft 405 of the timing rollers 403 and 403. An attachment plate 410 is attached to the link arm 407 via bolts 408 and 408 and a plate body 409, and a feed plate 401 is attached to the attachment plate 410.

  As shown in FIG. 6, the feed plate 401 is caused to perform a crank motion by the rotation of the crank arm 406, so that the object to be sorted is locked and raised during the upward movement, and is advanced during the right lateral movement. During the downward movement, it is locked with the locking projections 300 of the locking plate 200, left behind, and then restored to the original position by the left lateral movement, and the object to be sorted is locked by the projections 300. Thus, it is intermittently moved forward and simultaneously aligned in a row.

  Below the rear end of the aligning device A2, the weight measuring hopper B is arranged to receive the object to be sorted.

As shown in FIG. 1, the weight measurement hopper B includes a hopper 1 and a weight measurement load cell 2, and the hopper 1 is composed of a movable door 3 on one side and is held by a hopper receiver 4. Yes.
The to-be-sorted object F that has fallen on the hopper 1 measures the weight of the to-be-sorted substance F with the load cell 2 for weight measurement, and lifts the hopper receiver 4 via the link 5 by the solenoid S to sort the to-be-sorted substance F into the sorting device C It comes to send to.

  As shown in FIG. 1, the sorting device C is provided with endless chains 11 and 11 at predetermined intervals in the width direction, and the chains 11 are arranged vertically at both ends of the machine base 12. A pair of chain wheels 13, 13 ′, 14, 14 ′ are wound around the upper part of the machine base 12 so as to run horizontally from the upstream chain wheel 13 toward the downstream chain wheel 14. Has been placed.

  As shown in FIGS. 1, 7, and 8, the sorting device C includes a tray 15, a lever 16 provided at the bottom of the tray 15, and a bottom tray 18 and a bottom tray 18 attached to a pivot 17 at one end of the lever 16. And an endless chain 11. The bottom tray 18 is transported while sliding on a frame body 19 engaged with a rail 21 attached to the base 20. Reference numeral 22 denotes a guide for guiding the chain 11.

  A solenoid 30 is provided on the side of the sorting device C, and the solenoid 30 connects an upper bellows 31 and a lower bellows 32 up and down, and a lever 34 that tilts the tray 15 by operating a plunger 33 provided on the solenoid 30. In addition, an L-shaped lever 36 is provided that penetrates the pedestal 35 connected to the lever 34 in the horizontal direction.

  The tray 15 includes a front wall 151, a side wall 152 that extends in parallel rearward from both sides of the front wall 151, a bottom wall 153, and an opening 154. The bottom wall 153 is formed to be inclined from the front wall 151 side toward the opening 154 side.

  When a large number of objects to be sorted F are arranged in a line by the aligning device A2 and are sequentially inserted intermittently into the weight measuring hopper B, the hopper 1 is displaced downward, and the displacement amount is measured by the load cell 2. The weight of the object to be sorted F is measured. The weight of the object F measured by the load cell 2 is transmitted to a computer (not shown) as a weight signal. When the measurement of the weight is finished, the object to be sorted F is dropped on the tray 15 of the sorting device C driven by the motor, and moved by the chain wheel 13 so that the solenoid at a predetermined position corresponding to the predetermined weight of the object to be sorted F is moved. Since power is supplied to 30, the tray 15 rotates at a predetermined position, and the object to be sorted F is discharged from the tray.

Next, the sorting apparatus will be described with reference to FIGS.
When the solenoid 30 is not energized, as shown in FIG. 8, the plunger 33 is lowered, and an L-shaped lever 36 penetrating the pedestal 35 connected to the lever 34 in the horizontal direction is also disposed below. . Therefore, the lever 16 provided at the bottom of the tray 15 and the L-shaped lever 36 are not engaged.

The upper bellows 31 and the lower bellows 32 are configured so that air flows through the solenoid 30.
In addition to the function as a normal solenoid, the solenoid 30 also functions as an air conduction path between the upper bellows 31 and the lower bellows 32.

  When the solenoid 30 is energized, as shown in FIG. 9, the plunger 33 rises, the lower bellows 32 contracts, and the internal air moves through the solenoid 30 to the upper bellows 31 having the opening 38. While the bellows 31 expands, air leaks from the opening 38, the lever 34 connected to the plunger 33 rises, the pedestal 35 connected to the lever 34 rises, and the L-shaped lever 36 penetrating in the horizontal direction also moves upward. Moving. Therefore, the lever 16 is engaged with the lever 16 provided at the bottom of the tray 15 and the L-shaped lever 36, and the lever 16 is rotated clockwise around the pivot 17, and the bottom of the tray 15 is also rotated clockwise. 15 is rotated in the direction of the opening 153 and discharged from the outlet.

  As shown in FIG. 9, the plunger 33 rises, the lower bellows 32 contracts, and the internal air moves to the upper bellows 31 having the opening 38 through the plunger 33, and the bellows 31 expands and air flows from the opening 38. After the leakage, the object to be sorted F rotates in the direction of the opening 153 of the tray 15 and is discharged from the outlet, and then when the solenoid 30 is de-energized, the upper bellows 31 contracts as shown in FIG. Air is introduced from the portion 38 and the internal air slowly moves to the lower bellows 32 through the solenoid 30. Accordingly, the plunger 33 is slowly lowered, and the L-shaped lever 36 penetrating in the horizontal direction through the pedestal 35 connected to the lever 34 is also gradually lowered, so that the pedestal 35 does not collide with the pedestal 39, so that no impact sound is generated. . A cushion made of a foam may be placed on the base 39.

  In the above apparatus, each solenoid is operated by computer control. That is, when the object to be sorted F is put into the hopper 1, its weight is measured by the load cell 2, and the measured value is sent to a computer and stored. At this time, the door 3 is in a closed state. The computer determines which final tray 15 is to be opened based on the stored weight, and the solenoid 20 of the identified tray 15 is energized. That is, after the discharge slide for the object F is determined, the solenoid 15 is energized and the door 3 is opened.

A weight sorting apparatus as a second embodiment of the present invention provided with a locking projection provided with a weight measuring unit will be described with reference to FIGS.
As in the first embodiment of the present invention, the alignment device A2 provided with a locking projection having a weight measuring portion shown in FIG. 11 has its starting end positioned at the lower end of the size sorting device A1 and climbs the entire device. Place on the gradient.
Two plate-like locking plates 200, 200 arranged at intervals equal to or smaller than the diameter of the object to be sorted F are arranged in an ascending gradient, and the diameter of the object to be sorted is placed on the inner upper surface of each of the locking plates 200, 200. Locking protrusions 300 and 300 are planted at a larger interval, and the locking protrusions 300 prevent the object to be sorted from falling from a predetermined position even though the locking plate 200 has an upward slope. It comes to prevent.

Between the two plate-like locking plates 200, 200, as in the first embodiment, a feeding means 400 is disposed at the lower part.
A weighing pan 21 as a detection unit 21 for measuring the weight of the object to be sorted F is provided below the end of the locking plates 200, 200 outside the locking protrusions 300, 300 at the rear end of the alignment device A2. An electronic balance 2 comprising a load cell connected to the weighing pan 21 is provided. Since the feeding means 400 and the sorting apparatus are configured in the same manner as in the first embodiment, description thereof is omitted.

As shown in FIG. 11, the sorting objects F aligned by the aligning device A <b> 2 provided with the locking projection having the weight measuring unit are dropped on the hopper H and arranged on the outlet side of the hopper H. Conveyed to C.
As described above, the weight sorting apparatus according to the second embodiment is provided with the detection unit 21 that measures the weight of the object to be sorted F in connection with the locking protrusion 300 at the rear end of the alignment apparatus A2. Unlike the weight sorting apparatus of the embodiment, it is not necessary to separately provide the weight measurement hopper B, and the configuration is simplified.

  The weight sorting apparatus of the present invention can be applied not only to mini tomatoes, small fruits such as kumquat and plum, agricultural products or marine products, but also to weight sorting apparatuses that classify small objects to be sorted according to their weights. .

It is a side view showing the whole weight sorter of a 1st embodiment of the present invention. It is a top view of the same magnitude | size selection apparatus and an alignment apparatus. It is a perspective view of the same size sorter and alignment device. It is a side view of the feeding means of the alignment apparatus. It is a front view of the feeding means of the alignment apparatus. It is a perspective view which shows the crank mechanism of the feed means. It is a partial expanded side view of the same weight sorter. It is a side view of the state which the plunger of the tray part and the plunger part fell. It is a side view of the state which the plunger of the tray part and the plunger part raised. It is a side view in the state where the plunger of the tray part and the plunger part is going down. It is a side view which shows the whole weight selection apparatus of 2nd Embodiment of this invention. It is a perspective view of the feeding means of the alignment device. It is a side view explaining the action | operation of the tray of the conveyor of the conventional weight selection apparatus.

Explanation of symbols

A1 Size sorting device A2 Alignment device B Weight measurement hopper C Sorting device F Sorted object 1 Hopper 2 Weight measurement load cell 3 Door 4 Hopper receiver 11 Endless chain 12 Machine base 13 Chain wheel 13 'Chain wheel 14 Chain wheel 14' Chain wheel 15 Tray 16 Lever 17 Pivot 18 Bottom tray 20 Base 21 Rail 22 Guide 30 Solenoid 31 Upper bellows 32 Lower bellows 33 Plunger 34 Lever 35 Base 36 L-shaped lever 38 Opening 39 Base 200 Locking plate 300 Locking protrusion 400 Feeding means

Claims (6)

  In a weight sorting apparatus including a size sorting device, an alignment device in which a large number of objects to be sorted are arranged in a row and intermittently fed, a weight measuring hopper, and a sorting device, which are arranged in series. The size selecting device is composed of two cylindrical slope bodies arranged with a predetermined interval of a descending slope, and the aligning device is arranged with an ascending slope at a predetermined interval on the inner upper surface thereof. Two feeding plates having locking projections planted at a predetermined interval, and a feeding plate arranged between the two locking plates and having feeding projections planted at a predetermined interval, the feeding plate And a feeding means provided with a crank arm that is pivotally supported by a rotating shaft below both ends thereof.   The weight measuring hopper includes a weigh scale, and the sorting device includes a conveyor having a tray on which objects to be sorted are placed. Solenoids are provided on the sides of the conveyor, and air is disposed above and below the solenoids. The upper bellows and the lower bellows configured to circulate are connected to each other, the upper bellows is provided with an opening for allowing air to enter and exit, the solenoid is provided with a plunger, and the plunger is operated to operate the tray. 2. The weight selecting apparatus according to claim 1, wherein a lever to be tilted is continuously provided, and the lever is continuously provided to a lever pivotally attached to the tray.   3. The weight sorting apparatus according to claim 2, wherein the lever includes an L-shaped lever that horizontally penetrates a pedestal connected to the bellows below and a lever that is pivotally attached to the bottom of the tray.   A weight sorting apparatus comprising: a size sorting device; an alignment device in which a large number of objects to be sorted are arranged in a row; and an sorting device that intermittently sends the sorting devices; and a sorting device arranged in series. Is composed of two cylindrical slope bodies arranged at a predetermined interval of a downward slope, and the alignment device is arranged at an upward slope at a predetermined interval and is planted at an inner upper surface at a predetermined interval. A two-plate locking plate provided with a locking projection provided with a weight measuring section, and a feeding plate arranged between the two locking plates and having a feeding projection planted at a predetermined interval. A weight selection device comprising: a feed means having a crank arm that is pivotally supported by a rotating shaft below both ends thereof.   The sorting apparatus includes a conveyor having a tray on which the objects to be sorted are placed, a solenoid is provided on a side of the conveyor, and an upper bellows and a lower part are configured so that air is circulated above and below the solenoid. The upper bellows is connected to a bellows, an opening for allowing air to enter and exit is provided, the solenoid is provided with a plunger, and the plunger is provided with a lever for tilting the tray by its operation. 5. The weight selecting apparatus according to claim 4, wherein the weight selecting apparatus is connected to a lever pivotally attached to the tray.   6. The weight sorting apparatus according to claim 5, wherein the lever includes an L-shaped lever that horizontally penetrates a pedestal connected to the bellows below and a lever that is pivotally attached to the bottom of the tray.

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