KR102074536B1 - Color sorter - Google Patents

Abstract

When the flow rate of the raw material lubricating the chute phase of the optical sorting section is easily performed, and when a raw material having a maximum processing capacity is supplied from the grinding machine, the input amount to the feeding hopper is automatically limited to damage the conveying system motor. Provide a color sorter to prevent burnout.
The input hopper 6 for accepting raw materials includes a pair of left and right side walls, a front wall 6b on the side of the lift casing 7, a rear wall 6c facing the front wall 6b, and the front wall ( 6b) The inclined shelf plate 6d, which is formed to be inclined from the lower part, and is positioned below the inclined shelf plate 6d, and is inclined toward the supply port 7a of the lift part casing 7 from the rear wall 6c. It formed by the inclined shelf board 6e extended. In addition, a flow rate control valve 12 is formed below the inclined shelf plate 6b to adjust the amount of raw material intake, and the temporary storage tank 21 and the temporary storage tank 21 are moved down. At the time of connection, it was connected to limit the amount of raw materials received.

Description

Color sorter {COLOR SORTER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color sorter for sorting grains such as rice and barley, resin pellets, and the like into good and poor, or removing foreign matters mixed in the grains.

The present applicant has developed a small color sorting machine with the concept of realizing the performance and low cost suitable for the maggot line in a farmhouse, and applied for a plurality of patent applications.

Among these, according to the color sorter described in patent document 1, the color sorter provided with the lifting part provided with two or more elevators which raise a raw material, and the optical sorting part which selects the raw material raised by at least one said elevator, A discharge section for discharging good products to the outside of the color sorter is formed at an elevated position of the color sorter, and one of the elevators is a color sorter characterized in that the raw material determined to be good at the optical sorting section is raised toward the discharge section.

As a result, the raw material determined as good in the optical sorting unit is lifted by one of the elevators and discharged from the discharge unit formed at the high point of the color sorter, so that the meter or bag packing machine in the post-process is discharged from the discharge unit. It becomes possible to supply raw materials directly, and there is an effect and an effect that it is possible to easily arrange each device of the line.

Moreover, according to the color sorter of Claim 2 of patent document 1, the said lifting part is behind an optical sorting part, It is characterized by consisting of several elevators adjacently arranged in the width direction of the said color sorter.

As a result, the lifting portion can be made compact, and since the lifting portion is disposed behind the optical sorting portion and is disposed along the width direction, there is an effect and effect that the installation space of the device can be kept small without increasing the width of the device. .

Moreover, according to the color sorter of Claim 3 of patent document 1, the input hopper which inject | pours a raw material into the said color sorter was formed in the lower part of the said elevation part and the lower part of the color sorter.

Thereby, it becomes possible to convey a raw material easily from the scalding in a previous process, and can arrange | position a device easily, and there exists an effect and an effect that it does not expand the width | variety of an apparatus.

And according to the color sorter of Claim 4 of patent document 1, it is equipped with the horizontal conveyance conveyer which conveys the raw material sorted by the optical sorting part by a predetermined elevator. It is characterized by the above-mentioned.

This has the effect of not requiring a new space for arranging the transverse conveyer.

However, in the color sorter described in the patent document 1, since the raw material is directly introduced into the hopper from the ash in the previous step, for example, when the raw material having a high defective product mixing rate is input from the ash, An operation for improving the sorting accuracy by lowering the flow rate of the raw material flowing in the negative chute phase is required. Conventionally, the flow rate adjustment was performed by the operator visually judging the refreshment of the raw material which slid | shoots a chute | bed phase. Moreover, when raw material more than the maximum processing capability of the said color sorting machine was supplied from the grinding | polishing of the previous process, the elevator was clogged and it might generate overload and it might lead to damage or burnout of the conveying system motors, such as an elevator motor. .

Japanese Unexamined Patent Publication No. 2011-92861

In view of the above problems, the present invention makes it easy to adjust the flow rate of the raw material flowing in the chute phase of the optical sorting unit, and when the raw material having the maximum processing capacity is supplied from the grinding process of the previous step, It is a technical subject to provide a color sorter which can automatically limit and prevent damage or burnout of a carrier system motor.

MEANS TO SOLVE THE PROBLEM In order to solve the said subject, this invention provides the lifting part 2 equipped with the input hopper 6 for receiving a raw material in the lower back part of the lifting part casing 7, and the front side of the lifting part casing 7. It arrange | positions in the intermediate part, it arrange | positions under the optical sorting part 3 which performs the optical sorting by falling down the raw material raised by the said lifting part 2, and this optical sorting part 3, and it sorts optically. As a result, it is formed between the outside discharge part 4 which separates into good or bad goods, and an external discharge | emission, and an upper part of the front side of the said lifting part 2, and the said optical sorting part 3. In the color sorter provided with the storage tank part 5 which temporarily stores the raw material raised by the part 2, The input hopper 6 for receiving the said raw material is a pair of left and right side walls 6f, 6g), the front wall 6b on the side of the lift part casing 7, and the front thereof A rear wall 6c facing 6b, a short inclined shelf plate 6d which is formed to be inclined to extend from a lower portion of the front wall 6b, and is located below the inclined shelf plate 6d, and is located further below the rear wall. (6c) It is formed by the elongate inclined shelf plate 6e which inclines and extends toward the supply port 7a of the said elevation part casing 7 from the lower part, and the lower part of the elongated oblique shelf plate 6e is made of the raw material. In addition to providing a flow rate regulating valve 12 for adjusting the water intake amount, the storage tank portion 5 is provided with a temporary storage tank 21 that moves up and down in accordance with the storage amount, and the temporary storage tank. (21) and the flow rate control valve (12) are connected so as to limit the amount of raw material received when the temporary storage tank (21) moves down.

In addition, the temporary storage tank 21 is mounted by a link mechanism composed of an upper link 22 and a lower link 23 between the upper portion of the elevating portion casing 7 and the elevating portion casing. (7) Between the lower cylinder 25 and the temporary storage tank 21 so that the lower cylinder 25 may protrude from the front side of the upper part, and the temporary storage tank 21 moves up and down below the lower cylinder 25. Is maintained by the suspending spring 24.

And the said flow regulating valve 12 is caught by the said injection hopper 6 by the arm 14 centered on the rotating shaft 13, and it is usual to adjust the said flow rate by the tension of the spring 15. The valve 12 is rotated to approach the inclined shelf plate 6b, while the flow rate control valve 12 limits the amount of raw material received when the temporary storage tank 21 is lowered. The flow regulating valve 12 and the temporary storage tank 21 were connected by the first rod 17, the second rod 19, and the relay arm portion 18.

Moreover, the opening-closing shutter 27 which can adjust the opening degree is formed in the outlet 21a of the said temporary storage tank 21, and the opening-and-closing shutter 27 is provided in the side surface of the said optical sorting part 3. ), An opening / closing lever 28 is formed so that an operator can open and close manually, and the opening / closing lever 28 and the opening / closing shutter 27 can be interlocked by a wire 29.

According to the invention as set forth in claim 1, the input hopper 6 for accepting the raw material includes a pair of left and right side walls 6f and 6g, a front wall 6b on the elevation part casing 7 side, and a front wall thereof. It is located below the rear wall 6c opposing 6b, the short inclined shelf board 6d extended inclined from the lower part of the said front wall 6b, and the inclined shelf board 6d, and lower part of the rear wall 6c. It is formed by the elongate inclined shelf plate 6e which inclines and extends toward the supply port 7a of the said elevation part casing 7 from the said. Thereby, while the fall impact force at the time of receiving a raw material by the some inclined roof board 6d, 6e is alleviated, the inclined roof board 6e is formed longer than the inclined roof board 6d, and the inclined surface is left-right asymmetrical. Therefore, there is little possibility that particle | grains may form arch structure, and a raw material can be supplied quickly toward the supply port 7a. And when the raw material more than the maximum processing capability of a color sorter is supplied from the grinding | polishing of a previous process, the temporary storage tank 21 becomes full and heavy, and the temporary storage tank 21 is unloaded by self weight. Since the flow rate control valve 12 is closed-controlled, the input amount to the input hopper 6 is automatically restricted, and it becomes possible to prevent damage or burnout of the conveying system motor due to clogging of the lift part.

Moreover, according to invention of Claim 2, the temporary storage tank 21 is attached by the link mechanism which consists of the upper link 22 and the lower link 23 between the upper part of the lifting part casing 7, and the upper part. In addition, the lower side cylinder 25 is temporarily formed on the front side of the upper portion of the elevating part casing 7 so that the temporary storage tank 21 moves up and down so that the temporary storage tank 21 moves up and down. Since the suspension springs 24 hold | maintained between the storage tanks 21, the vertical movement mechanism of the temporary storage tank 21 can be comprised easily.

And according to invention of Claim 3, while the flow regulating valve 12 is caught by the injection hopper 6 by the arm 14 centered on the rotating shaft 13, it is the spring 15 normally. The flow rate control valve 12 is rotated to approach the inclined shelf plate 6b by the tension force of, while the flow rate control valve 12 restricts the amount of raw material received by the flow rate control valve 12 when the temporary storage tank 21 is lowered. Since the connection between the control valve 12 and the temporary storage tank 21 was connected by the 1st rod 17, the 2nd rod 19, and the relay arm part 18, the temporary storage tank 21 was unloaded. The immediate response of the closing adjustment of the flow regulating valve 12 accompanying this is remarkably improved. As a result, it is possible to quickly prevent damage or burnout of the carrier system motor.

In addition, according to the invention as set forth in claim 4, an opening and closing shutter 27 capable of adjusting the opening degree is formed in the outlet 21a of the temporary storage tank 21, and on the side of the optical sorting section 3, And an opening / closing lever 28 so that an operator can manually open and close the opening / closing shutter 27, and configured to interlock between the opening / closing lever 28 and the opening / closing shutter 27 by a wire 29. It is. Thereby, when the mixing rate of the defective product in a raw material is high, an operator can change the flow volume of the raw material which flows through a chute | shoot while checking the to-be-sorted thing which flows through the chute image of the optical sorting part 3 by operating the opening-closing lever 25. Become. This is very quick, compared with the case of using a conveying device such as a vibrating feeder for supplying raw materials to the chute, for example, and it is possible to reduce the waiting time until the proper flow rate is achieved. The efficiency is remarkably improved.

1 is a perspective view showing the whole color sorter of the present invention.
2 is a right side view of the above-described color sorter.
3 is a partially cutaway view for explaining the internal structure by partially cutting out the above-described color sorter.
4 is an enlarged view of the lower portion of the lift unit of the color sorter described above.
5 is an enlarged view of an upper portion of a lift unit of the color sorter described above.

EMBODIMENT OF THE INVENTION The form for implementing this invention is demonstrated, referring drawings. 1 is a perspective view showing the entire color sorter of the present invention, FIG. 2 is a right side view of the color sorter described above, FIG. 3 is a partial cutaway view of the color sorter described above, FIG. 4 is an enlarged view of a lower part of the lift part, 5 is an enlarged view of the upper portion of the lift portion.

The color sorter 1 of the present invention is capable of selecting, by color, foreign matters mixed into good and poor or raw materials using grains, resin pellets, coffee beans, and other granular materials as raw materials.

As shown in FIGS. 1-3, the color sorter 1 of this invention is the lifting part 2 provided with the input hopper 6 for receiving a raw material in the lower back side of the lifting part casing 7; And an optical sorting section 3 which is located below the optical sorting section 3 for performing optical sorting when placed in the middle of the front side of the elevating section 2 and causing the raw material to fall. It is formed between the outside discharge part 4 which isolate | separates with a foreign material and discharges to the outside, and the upper part of the front side of the said lifting part 2, and the said optical sorting part 3, and lifted by the said lifting part 2 It is comprised by the storage tank part 5 which temporarily stores a raw material.

The elevating portion 2 forms a driving pulley 8 and a driven pulley 9 at an up and down position in the elevating portion casing 7, respectively, and a large number is provided between the driving pulley 8 and the driven pulley 9. The endless belt 11 which attached the bucket 10 of this invention is comprised by rotating and rotating (refer FIG. 2 and FIG. 3). And since the said endless belt 11 rotates between the said pulleys 8 and 9, the raw material received from the said injection hopper 6 is conveyed upwards, and many buckets 10 are driven to the driven pulley 9 The raw material is conveyed by being thrown into the storage tank 5 at the moment of rotation.

An injection hopper 6 is formed at the lower rear side of the elevating portion 2. The injection hopper 6 includes a pair of left and right side walls 6f and 6g, a front wall 6b on the side of the lift casing 7 side, a rear wall 6c facing the front wall 6b, and the front wall. (6b) A short inclined shelf plate 6d which is formed to be inclined to extend from the lower portion, and is located below the inclined shelf plate 6d, and is provided at a lower portion of the rear wall 6c, and the supply port 7a of the elevating part casing 7 is provided. It is formed by the elongate inclined shelf board 6e which inclines toward and extends toward the surface.

And the flow control valve 12 which adjusts the receiving amount of a raw material is formed in connection with the said storage tank part 5 in the lower part of the inclined shelf board 6e of the input hopper 6 (FIG. 2, FIG. 3 and FIG. 4). The flow regulating valve 12 is constricted by the rotation shaft 13, and the rotation shaft 13 fixes the arm 14, and the arm 14 has a spring 15. While the one end is fixed, the other end of the spring 15 is fixed to the fixing portion 16 provided on the lift casing 7, and the flow regulating valve 12 is normally inclined by the tension of the spring 15. 6e) Rotate to access. On the other hand, while fixing the one end side 17a of the 1st rod 17 in the position which opposes the rotating shaft 13 of the arm 14, the other end side 17b of the 1st rod 17 is fixed. ) Fixes one end side of the relay arm portion 18. And while fixing the one end side 19a of the 2nd rod 19 in the position which opposes the 1st rod other end side 17b of the relay arm part 18, The other end side 19b is connected to the tank middle metal fitting 20 of the said storage tank part 5.

By the way, the temporary storage tank 21 which forms the said storage tank part 5 is with the upper link 22 and the lower link 23 between the lifting part casing 7 upper part of the lifting part 2. It is attached by the link mechanism which consists of a structure which has a degree of freedom (refer FIG. 3, FIG. 5). And the lower side cylinder 25 is protruded in the front side of the upper part of the lifting part casing 7, The upper link part 22 is provided in the upper link part 22 so that the temporary storage tank 21 may be maintained below the lower side cylinder 25. While fixing one end side of the suspending spring 24, the other end side of the suspending spring 24 is fixed to the fixing portion 26 provided in the downcomer 25, and the temporary storage tank 21 is suspended. It is a structure to form.

Thereby, the 2nd rod 19 moves up and down according to the refreshment of the storage amount of the said temporary storage tank 21, and the flow regulating valve 12 can be rotated to the position of a solid line, and the position of a dashed-dotted line. That is, when the amount of storage of the temporary storage tank 21 is small, the lowering of the second rod 19 is less, the flow rate regulating valve 12 is in the position of the solid line, and the supply port 7a is opened large. The raw material of the flow rate is supplied to the case bottom 7b. On the other hand, if the amount of storage of the temporary storage tank 21 is large, the lowering of the second rod 19 becomes large due to its own weight, and the flow regulating valve 12 is positioned at the one-dot chain line, and the opening degree of the supply port 7a is limited. In this state, the raw materials with limited flow rate are supplied to the case bottom 7b.

At the outlet 21a of the temporary storage tank 21, an opening / closing shutter 27 capable of adjusting the opening degree is formed, and the optical sorting section (2) can be opened and closed manually. The opening / closing lever 28 is formed in the side surface of 3), and it is comprised so that the opening / closing lever 28 and the said opening-closing shutter 27 can be interlocked with the wire 29 (refer FIG. 2). Moreover, it is good also as a structure which an operator can open and close the opening / closing shutter 27 directly, regardless of the interlocking of the wire 29. As a result, when the mixing ratio of the defective product is high in the raw material, the operator operates the opening / closing lever 25 or the opening / closing shutter 27 to check the to-be-selected material flowing through the chute image of the optical sorting section 3, The flow rate can be changed.

Next, the structure of the said optical sorting part 3 is explained in full detail. The optical sorting unit 3 includes a chute 30 inclined at an angle of about 60 degrees from a horizontal position, a shelf plate 31 for conveying the raw material from the temporary storage tank 21 to the chute 30, It is provided with the optical detection part 32 formed in the upper and lower sides of the fall trace of the raw material falling from the chute 30 lower end, and the ejector nozzle 33 further formed below.

It is preferable that the surface shape of the chute 30 is formed in a flat plate shape without grooves in order to slide the granular material serving as a raw material in a band shape at a wide width. And in order to prevent the granular material from the chute 30 from overflowing, and also to prevent the granular material of the screening object from rising from the bottom surface during the slide 30, the chute cover at a predetermined interval from the bottom surface. You may form 30a (refer FIG. 3).

Moreover, the outside discharge part 4 below the said optical sorting part 3 exists on the same inclination line as the said chute 30 below the said ejector nozzle 33, and blows off from the ejector nozzle 33 ( In addition to the good quality recovery hopper 34 and the good quality recovery hopper 34 which receive the granular material of a drop trace as it is, without receiving wind, it collects the defective goods from a normal raw material by receiving the blowing from the ejector nozzle 33 The defective article recovery hopper 35 is provided. In addition, the non-defective product recycling hopper 34 is connected to the non-defective product discharge cylinder 36, and the defective product recovery hopper 35 is connected to the defective product discharge cylinder 37, respectively.

The optical detection unit 32 includes sensors 38 and 39 made of a CCD line sensor and the like, light sources 40, 41, 42 and 43 made of a fluorescent lamp and the like, backgrounds 44 and 45 as background means and a mirror. (46, 47) is provided. And each sensor 38 and 39 picks up the raw material falling from the lower end of the said chute 30 in a detection position, and judges the good quality of a raw material, the defective article, or the foreign material mixed in the raw material based on the imaging signal. will be. The ejector nozzle 33 blows off what was judged to be a defective article and a foreign substance, bounces off from the flow of a raw material, and removes it to the defective article collection hopper 35 side. In addition, the ejector nozzle 33 may use a leaf spring or the like whose solenoid or the like is a driving means, instead of bouncing the raw material with air.

Hereinafter, the effect | action in embodiment of this invention is demonstrated.

When a raw material is thrown in from the opening part 6a of the input hopper 6, while the impact is alleviated by the inclined shelf boards 6d and 6e, it falls down and reaches the inclined shelf board 6e lower part. In the lower part of the inclined shelf 6e of the input hopper 6, the flow rate control valve 12 which adjusts the acceptance amount of a raw material is formed in association with the said storage tank part 5, and is formed. At this time, since the temporary storage tank 21 is still empty, the flow regulating valve 12 is in the position of the solid line in FIG. 4 and the supply port 7a is in a deployed state. For this reason, a relatively large flow rate of raw material is supplied to the case bottom portion 7b. The raw material supplied to the case bottom part 7b is thrown up by the bucket 10 in the elevation part casing 7, is thrown at the moment it is rotated by the driven pulley 9, and is temporarily stored from the drip container 25. It is stored in the tank 21. At this time, if the outlet 21a of the temporary storage tank 21 is in the state closed by the opening-closing shutter 27, the temporary storage tank 21 will be filled with a raw material, become heavy, and will be attached to the suspending spring 24. To descend. In connection with this, the 2nd rod 19 connected to the tank intermediate | middle metal fitting 20 is also moved down. Thereby, the relay arm part 18 linked with the 2nd rod rotates (refer FIG. 4), and the 1st rod 17 moves down in the lower right direction of a figure. As a result, the arm 14 rotates about the rotation shaft 14 so that the flow rate control valve 12 is in the position of the dashed-dotted line in FIG. 4, and the opening degree of the supply port 7a is in a restricted state, and the flow rate is restricted. The raw material is supplied to the case bottom 7b. And when the temporary storage tank 21 becomes a full quantity, the supply port 7a will be closed by the flow regulating valve 12. As shown in FIG.

And when the storage amount of the temporary storage tank 21 becomes full, when an operator operates the opening-closing lever 25 and opens the outlet 21a, a raw material will be made to the shelf board 31 by the flow volume according to the opening degree. It is dropped and then supplied on the chute 30. On the other hand, since the weight of the temporary storage tank 21 becomes light with the decrease of the storage amount, the 2nd rod 19 will move. In this way, the flow rate control valve 12 is opened from the closed state so that new raw material is supplied from the input hopper 6.

The raw material flowing down the chute 30 falls from its lower end and is detected by the sensors 38 and 39 of the optical sorting section 3. Based on the imaging signals of the sensors 38 and 39, the good quality of the raw material, the defective product, or the foreign matter mixed into the raw material is judged. The judged defective items and foreign matters are thrown out of the flow of the raw material by the blowing of the ejector nozzle 33 and discharged out of the defective product discharge container 37 through the defective product recovery hopper 35 to the outside of the air. On the other hand, what was judged as good quality goods is discharged | emitted from the goods recovery hopper 34 via the goods discharge container 36 to the outside, without receiving the blowing of the ejector nozzle 33.

As described above, in the present invention, the input hopper 6 for accepting the raw material includes a pair of left and right side walls 6f and 6g, the front wall 6b on the elevation part casing 7 side, and The rear wall 6c facing the front wall 6b, a short inclined shelf plate 6d which is formed to be inclined to extend from a lower portion of the front wall 6b, and is located below the inclined shelf plate 6d, and is further provided in the rear wall 6c. It is formed by the elongate inclined shelf board 6e which inclines and extends toward the supply port 7a of the said elevation part casing 7 from the lower part. Thereby, while the fall impact force at the time of receiving a raw material by the some inclined roof board 6d, 6e is alleviated, the inclined roof board 6e is formed longer than the inclined roof board 6d, and the inclined surface is asymmetrical left and right. The particles are unlikely to form an arch structure, and the raw material can be supplied quickly toward the supply port 7a. And when the raw material more than the maximum processing capability of the said color sorter is supplied from the grinding | polishing of the previous process, the temporary storage tank 21 will become full and heavy, and the temporary storage tank 21 will be accompanied by lower weight by self weight. Since the flow rate control valve 12 is closed-controlled, the input amount to the input hopper 6 is automatically limited, and it becomes possible to prevent damage or burnout of the conveying system motor due to clogging of the lift part. In addition, the color sorter of this invention is not limited to the said embodiment, A various design change is possible.

Industrial availability

INDUSTRIAL APPLICABILITY The present invention can be applied to a color sorter that sorts grains such as rice and barley, resin pellets, and the like into good and defective products, or removes foreign matters mixed into the grains.

1: color sorter
2 lifting unit
3: optical sorting unit
4: outside discharge
5: Storage tank part
6: hopper
7: lifting casing
8: driving pulley
9: driven pulley
10: bucket
11: endless belt
12: flow control valve
13: axis
14: arm
15: spring
16: fixed part
17: first load
18: relay arm part
19: second rod
20: tank middle bracket
21: Temporary Storage Tank
22: upper link
23: lower link
24: Suspending Spring
25: Drainage
26: fixing part
27: opening and closing shutter
28: opening and closing lever
29: wire
30: suit
31: board
32: optical detection unit
33: ejector nozzle
34: Good Recovery Hopper
35: defective recovery hopper
36: good discharge container
37: defective product discharge container
38: sensor
39: sensor
40: light source
41: light source
42: light source
43: light source
44: Background
45: Background
46: mirror
47 mirror

Claims (4)

An elevation part 2 provided with an input hopper 6 for receiving a raw material at a lower back side of the elevation part casing 7;
An optical sorting unit 3 disposed in the front middle portion of the elevating unit casing 7 to lower the raw material raised by the elevating unit 2 to perform optical sorting;
An outside discharge section 4 arranged below the optical sorting section 3, and separated into good and poor or foreign matters by the optical sorting result to discharge the outside air;
Color formed between the upper part of the front-side of the lifting part 2 and the said optical sorting part 3, and the storage tank part 5 which temporarily stores the raw material raised by the lifting part 2, and is comprised. In the sorting machine,
The input hopper 6 for receiving the raw material includes a pair of left and right side walls 6f and 6g, a front wall 6b on the side of the lift casing 7, and a rear wall facing the front wall 6b ( 6c), a short inclined shelf plate 6d which is formed to be inclined to extend from a lower portion of the front wall 6b, and is located below the inclined shelf plate 6d, and is provided with the lifting part casing 7 from a lower portion of the rear wall 6c. Formed by a long inclined shelf plate 6e which is formed to be inclined and extended toward the supply port 7a of the
A temporary storage tank 21 is formed below the elongated oblique shelf plate 6e to adjust the amount of the raw material to be received, and the storage tank unit 5 temporarily moves up and down depending on the storage amount. Form the
And the temporary storage tank (21) and the flow rate control valve (12) are connected to limit the amount of raw material received when the temporary storage tank (21) is moved down. The method of claim 1,
The temporary storage tank 21 is mounted by a link mechanism consisting of an upper link 22 and a lower link 23 between the upper and lower portions of the elevating portion casing 7, and the elevating portion casing 7. ) Between the lower cylinder 25 and the temporary storage tank 21 so as to protrude and form the lower cylinder 25 on the front side of the upper part, and the temporary storage tank 21 moves up and down under the lower cylinder 25. The color sorter which is hold | maintained by the suspended spring 24. The method according to claim 1 or 2,
The flow regulating valve 12 is caught by the injection hopper 6 by an arm 14 centered on the pivot shaft 13, and is usually controlled by the tension force of the spring 15. 12 is rotated so as to approach the inclined shelf plate 6b, and the flow regulating valve 12 and the flow regulating valve 12 limit the amount of raw material received when the temporary storage tank 21 is lowered. A color sorter formed by connecting the temporary storage tank (21) by a first rod (17), a second rod (19), and a relay arm portion (18). The method according to claim 1 or 2,
The opening and closing shutter 27 which can adjust the opening degree is formed in the outlet 21a of the temporary storage tank 21, and the opening and closing shutter 27 is provided on the side surface of the optical sorting section 3. A color sorter configured to form an opening / closing lever (28) so as to be opened and closed manually by an operator, and interlocking between the opening / closing lever (28) and the opening / closing shutter (27) by a wire (29).

Images