阅读说明：本技术 一种原料豆选豆工艺 (Bean selecting process for raw material beans ) 是由 刘占猛 于 2019-10-24 设计创作，主要内容包括：本发明涉及选豆工艺,尤其是涉及一种原料豆选豆工艺,包括以下步骤：S1：原料豆验收；S2：仓储,对原料豆进行分类储存；S3：机选,通过机械设备对原料豆进行初选；S4：人工选别,经初选后,将原料豆运输至带有挑选区和劣质豆槽的挑选平台上并平铺在挑选区内,挑选平台具有传送功能,将劣质豆由挑选区中挑出并放置在劣质豆槽中,经传送后在挑选平台的末端收集。本发明的优点是方便工作人员对劣质豆进行挑选,提高工作效率。(The invention relates to a bean selecting process, in particular to a bean selecting process for raw beans, which comprises the following steps: s1: checking and accepting raw material beans; s2: warehousing, namely storing the raw material beans in a classified manner; s3: machine selection, namely performing primary selection on raw material beans through mechanical equipment; s4: the method comprises the steps of manually selecting, after primary selection, transporting raw material beans to a selecting platform with a selecting area and an inferior bean groove, flatly paving the raw material beans in the selecting area, wherein the selecting platform has a conveying function, selecting inferior beans from the selecting area, placing the inferior beans in the inferior bean groove, and collecting the inferior beans at the tail end of the selecting platform after conveying. The invention has the advantages that the invention is convenient for the staff to select the inferior beans and improves the working efficiency.)

1. A bean selecting process for raw material beans is characterized by comprising the following steps: the method comprises the following steps:

s1: checking and accepting raw material beans;

s2: warehousing, namely storing the raw material beans in a classified manner;

s3: machine selection, namely performing primary selection on raw material beans through mechanical equipment;

s4: the method comprises the steps of manually selecting, after primary selection, transporting raw material beans to a selecting platform (1) with a selecting area (15) and an inferior bean groove (16) and flatly paving the raw material beans in the selecting area (15), wherein the selecting platform (1) has a conveying function, the inferior beans are selected from the selecting area (15) and placed in the inferior bean groove (16), and the poor beans are collected at the tail end of the selecting platform (1) after being conveyed.

2. The raw material bean sorting process according to claim 1, characterized in that: step S2 includes the following steps:

a1: weighing, namely weighing and recording at a weighing place according to purchasing indexes;

a2: classifying, namely transporting the raw material beans into a transition room, and classifying according to the types and series of the raw material beans;

a3: warehousing, namely respectively transporting the classified raw material beans to corresponding warehouses for storage;

a4: and recording the newly put raw material beans, wherein the recording content comprises the names, the types, the quantity and the putting time of the raw material beans.

3. The raw material bean sorting process according to claim 2, characterized in that: the series in step A1 includes export series, domestic marketing series, natto series, kidney bean series and other series, and the raw material beans of each series are grouped together.

4. The raw material bean sorting process according to claim 1, characterized in that: step S3 includes the following steps:

b1: winnowing, namely conveying the raw material beans to a wind power sorting machine through a lifting machine, and removing light impurities such as bean hulls, miscellaneous leaves, catkins and the like;

b2: removing stones, conveying the raw material beans into a stone removing machine after air separation, and removing impurities such as stones, heavy minerals and the like doped in the raw material beans;

b3: magnetic separation, after stone removal, the raw material beans are conveyed into a magnetic separator, and substances with micro-magnetic mineral components are removed.

5. The raw material bean sorting process according to claim 1, characterized in that: the selecting platform (1) in the step S4 comprises a conveyor belt (11), baffle plates (12) fixedly connected to two sides of the conveyor belt (11), a partition plate (13) arranged above the conveyor belt (11) and located on the inner side of the baffle plates (12), a vibrating feeder (2) fixed at the starting end of the conveyor belt (11) and a storage bin (3) arranged above the vibrating feeder (2) and communicated with a discharge hopper of the vibrating feeder (2) in a sealing mode, a selecting area (15) is formed between two partition plates (13), an inferior bean groove (16) is formed between adjacent partition plates (13) and the baffle plates (12), and gaps between the partition plates (13) and the conveyor belt (11) are smaller than the size of beans.

6. The raw material bean sorting process according to claim 5, characterized in that: the tail ends of the two poor-quality bean troughs (16) are provided with collecting devices (7) which comprise collecting pipes (71) respectively fixed on the two baffles (12) and communicated with the tail ends of the corresponding poor-quality bean troughs (16), collecting pipes (72) connected to the lower ends of the collecting pipes (71) and inclined towards the mutually approaching direction, and discharging pipes (73) which are used for communicating the two collecting pipes (72) and have downward outlets.

7. The raw material bean sorting process according to claim 5, characterized in that: and one sides of the two partition plates (13) opposite to each other are respectively and fixedly connected with an adjusting plate (4) bent towards the selecting area (15).

8. The raw material bean sorting process according to claim 5, characterized in that: two discharge ports (5) are formed in the tail end of the bean selecting area, and a converter device (6) capable of switching the discharge ports (5) to receive materials in turn is arranged on the conveyor belt (11) corresponding to the two discharge ports (5);

the converter device (6) comprises a portal frame (61) fixedly connected between two baffles (12) and positioned above a discharge port (5), a U-shaped frame (62) fixedly connected to the lower surface of the portal frame (61), a steering rod (63) vertically penetrating through a cross beam of the portal frame (61) and a cross plate of the U-shaped frame (62), and a guide plate (64) fixedly connected to the lower end of the steering rod (63), wherein the distance between the guide plate (64) and the U-shaped frame (62) is greater than the height of the discharge port (5), the rod body of the steering rod (63) positioned above the portal frame (61) is in threaded connection with a first nut (66), the rod body of the steering rod (63) positioned in the U-shaped frame (62) is provided with a second nut (67) and a spring (68), and the second nut (67) is in threaded connection with the steering rod (63), the spring (68) is sleeved on the steering rod (63), one end of the spring (68) abuts against the second nut (67), and the other end of the spring (68) abuts against the lower surface of the cross beam of the portal frame (61).

9. The raw material bean sorting process according to claim 5, characterized in that: the storage bin (3) comprises a bin body (31) which is fixed above a discharging hopper of the vibrating feeder (2) and is communicated with the discharging hopper, supporting legs (32) which are fixedly connected to the outer wall of the bin body (31) to support the bin body, supports (33) which are arranged on the upper edges of the two ends of the bin body (31) along the length direction of the bin body, supporting rods (34) which are connected between the two supports (33) and dustproof cloth (35) which is laid on the two supports (33) to cover the bin body (31).

10. The raw material bean sorting process according to claim 9, wherein: the support (33) is in an inverted V shape, the end parts of the support (33) are respectively fixed on the bin body (31), and the two ends of the support rod (34) are respectively and fixedly connected with the top corners of the two supports (33).

Technical Field

The invention relates to a bean selecting process, in particular to a bean selecting process for raw beans.

Background

China is the hometown of soybeans, has five thousand years of history of soybean cultivation in China, and is also the country for the earliest research and development of soybean products. For thousands of years, ancient people in China created a lot of bean products with profound and widespread effects by using various beans, which are processed into foods such as bean curd, bean curd strips, fermented bean curd, soybean milk and the like by taking beans such as soybeans, small beans, mung beans, peas, broad beans and the like as main raw materials.

Beans are required to be selected before processing of bean products, impurities or broken beans doped in the beans are mainly removed, manual selection is adopted in a method widely used by small factories and workshops, and the method comprises the following specific operations: lay a cloth subaerial, spread raw materials beans on cloth, then the staff encloses to sit and selects around cloth, selects the back that finishes, through lifting up cloth to hold up raw materials beans wholly from subaerial, then place the storage area and deposit.

Although the above sorting method can sort raw beans to some extent, the following drawbacks still exist: only some impurities which are convenient to distinguish can be selected from the raw material beans, and some inferior beans are not easy to distinguish because the inferior beans are stacked together with the raw material beans and have the color close to that of the raw material beans, so that the inferior beans are not easy to select, and the working efficiency is low.

Disclosure of Invention

The invention aims to provide a bean selecting process for raw material beans, which has the effects of facilitating the selection of inferior beans by workers and improving the working efficiency.

The technical purpose of the invention is realized by the following technical scheme: a bean selecting process for raw material beans comprises the following steps:

s1: checking and accepting raw material beans;

s2: warehousing, namely storing the raw material beans in a classified manner;

s3: machine selection, namely performing primary selection on raw material beans through mechanical equipment;

s4: the method comprises the steps of manually selecting, after primary selection, transporting raw material beans to a selecting platform with a selecting area and an inferior bean groove, flatly paving the raw material beans in the selecting area, wherein the selecting platform has a conveying function, selecting inferior beans from the selecting area, placing the inferior beans in the inferior bean groove, and collecting the inferior beans at the tail end of the selecting platform after conveying.

By adopting the technical scheme, in the method, firstly, impurities which are easy to select in raw material beans are removed through mechanical equipment, then, the inferior beans are selected through manual selection on the selection platform, are selected from the selection area and are placed in the inferior bean groove, and after the inferior beans are conveyed, the inferior beans are collected at the tail end of the selection platform; through the mode of selecting limit conveying while, so that the staff collects raw material beans and beans of poor quality, saved the operation of collecting beans of poor quality specially, improved work efficiency.

The invention is further configured to: the step S2 includes the steps of:

a1: weighing, namely weighing and recording at a weighing place according to purchasing indexes;

a2: classifying, namely transporting the raw material beans into a transition room, and classifying according to the types and series of the raw material beans;

a3: warehousing, namely respectively transporting the classified raw material beans to corresponding warehouses for storage;

a4: and recording the newly put raw material beans, wherein the recording content comprises the names, the types, the quantity and the putting time of the raw material beans.

By adopting the technical scheme, the inventory in the warehouse can be mastered in real time.

The invention is further configured to: the series in the step A1 comprises an outlet series, an inner selling series, a natto series, a kidney bean series and other series, and raw material beans of each series are gathered together.

Through adopting above-mentioned technical scheme to the staff looks for corresponding raw materials beans when selling or processing.

The invention is further configured to: the step S3 includes the steps of:

b1: winnowing, namely conveying the raw material beans to a wind power sorting machine through a lifting machine, and removing light impurities such as bean hulls, miscellaneous leaves, catkins and the like;

b2: removing stones, conveying the raw material beans into a stone removing machine after air separation, and removing impurities such as stones, heavy minerals and the like doped in the raw material beans;

b3: magnetic separation, after stone removal, the raw material beans are conveyed into a magnetic separator, and substances with micro-magnetic mineral components are removed.

By adopting the technical scheme, after air separation, stone removal and magnetic separation are continuously carried out, part of impurities doped in the raw material beans are removed, and therefore the purpose of primary selection is achieved.

The invention is further configured to: the selecting platform in the step S4 comprises a conveyor belt, baffles fixedly connected to two sides of the conveyor belt, a separating plate arranged above the conveyor belt in a suspending mode and located two positions respectively, a vibrating feeder fixed at the starting end of the conveyor belt and a storage bin arranged above the vibrating feeder and communicated with a discharging hopper of the vibrating feeder in a sealing mode, a selecting area is formed between the two separating plates, an inferior bean groove is formed between the adjacent separating plates and the baffles, and gaps between the separating plates and the conveyor belt are smaller than the size of beans.

Through adopting above-mentioned technical scheme, carry the former beans after will primarily selecting to the storage silo in through hoisting equipment, evenly tile it on the district of choosing of conveyer belt through vibrating feeder, will be beans inferior in choosing the district and choose and put into the beans groove inferior, former beans and beans inferior can be conveyed to the end along with the conveyer belt and collect together, have saved the operation of collecting beans inferior specially, have improved work efficiency.

The invention is further configured to: the tail ends of the two poor-quality bean troughs are provided with collecting devices which comprise collecting pipes, collecting pipes and discharging pipes, the collecting pipes are respectively fixed on the two baffle plates and communicated with the tail ends of the corresponding poor-quality bean troughs, the collecting pipes are connected to the lower ends of the collecting pipes and incline towards the mutually approaching direction, and the discharging pipes are used for communicating the two collecting pipes and have downward outlets.

Through adopting above-mentioned technical scheme, when beans of poor quality convey to the end along with the conveyer belt, it rolls to in collecting the pipe along the collecting pipe, finally falls into in the collecting bag of its below by the discharging pipe, realizes receiving the material to the automation of beans of poor quality, need not to carry the manual work after selecting and collects, has improved work efficiency greatly.

The invention is further configured to: and the opposite sides of the two partition plates are respectively and fixedly connected with an adjusting plate bent towards the selecting area.

Through adopting above-mentioned technical scheme, as required, the staff can buckle it to adjust the scattered width of spreading of raw materials beans in selecting the district in a flexible way, so that the different raw materials beans of particle size are selected in the adaptation.

The invention is further configured to: the tail end of the bean selecting area is provided with two discharge ports, and the conveying belt is provided with a current conversion device capable of switching the discharge ports to receive materials in turn at positions corresponding to the two discharge ports;

the conversion device comprises a portal frame fixedly connected between two baffles and positioned above a discharge port, a U-shaped frame fixedly connected to the lower surface of the portal frame, a steering rod vertically penetrating through a cross beam of the portal frame and a transverse plate of the U-shaped frame, and a guide plate fixedly connected to the lower end of the steering rod, wherein the distance between the guide plate and the U-shaped frame is greater than the height of the discharge port, the steering rod is positioned on a rod body above the portal frame and is connected with a first nut in a threaded manner, the steering rod is positioned on a rod body in the U-shaped frame and is provided with a second nut and a spring, the second nut is connected to the steering rod in a threaded manner, the spring is sleeved on the steering rod, and one end of the spring is abutted against the second nut and the other end of the spring is abutted against the lower surface of the cross beam of the.

Through adopting above-mentioned technical scheme, the setting of current conversion device, a be used for switching between two discharge gates, so that bagging-off in turn under the circumstances of not shutting down, when one of them baling bag is about to fill with, upwards lift the steering column, make the water conservancy diversion board be higher than the discharge gate, the spring is in compression state this moment, after the position of adjustment guide plate, loosen the handle, make the guide plate downstream under the effect of spring and block its below discharge gate, the realization is to the switching of discharge gate, at this moment with the help of another baling bag collect can.

The invention is further configured to: the storage bin comprises a bin body, support legs, supports, support rods and dustproof cloth, wherein the bin body is fixed above a discharging hopper of the vibrating feeder and communicated with the discharging hopper, the support legs are fixedly connected to the outer wall of the bin body to support the bin body, the supports are installed on the upper edges of the two ends of the bin body in the length direction, the support rods are connected between the two supports, and the dustproof cloth is laid between the two supports.

Through adopting above-mentioned technical scheme, the setting of support, bracing piece and dustproof cloth for expand the storage space at storage silo top, so that can deposit more raw materials beans in the storage silo when the start pay-off at every turn.

The invention is further configured to: the support is in an inverted V shape, the end parts of the support are respectively fixed on the bin body, and the two ends of the support rod are respectively and fixedly connected with the top corners of the two supports.

Through adopting above-mentioned technical scheme, form dilatation bearing structure between support and the bracing piece for support dustproof cloth.

In conclusion, the beneficial technical effects of the invention are as follows:

1. according to the method, impurities which are easy to select in raw material beans are removed through mechanical equipment, then the poor-quality beans are selected through manual selection on a selection platform, the poor-quality beans are selected from a selection area and placed in a poor-quality bean groove, and the poor-quality beans are collected at the tail end of the selection platform after being conveyed; the raw material beans and the inferior beans are conveniently collected by workers in a mode of selecting and conveying at the same time, so that the operation of specially collecting the inferior beans is omitted, and the working efficiency is improved;

2. due to the arrangement of the collecting device, the working efficiency of workers is greatly improved, when the inferior beans are conveyed to the tail end along with the conveying belt, the inferior beans roll into the collecting pipe along the collecting pipe and finally fall into the collecting bag below the collecting pipe through the discharging pipe, and the inferior beans are automatically collected;

3. the arrangement of the converter device is used for switching between the two discharge ports so as to bag in turn without stopping;

4. the support, the support rod and the dustproof cloth are arranged and used for expanding the storage space at the top of the storage bin, so that more raw material beans can be stored in the storage bin when the storage bin is started for feeding at each time.

Drawings

FIG. 1 is a schematic process flow diagram of the present invention;

FIG. 2 is a schematic diagram showing the structure of a picking platform;

FIG. 3 is a schematic structural view showing the connection relationship between the bracket and the support rod;

fig. 4 is a schematic view showing the structure of the inverter device.

Reference numeral, 1, selecting a platform; 11. a conveyor belt; 12. a baffle plate; 13. a partition plate; 14. a connecting plate; 15. selecting a region; 16. poor-quality bean troughs; 2. vibrating the feeder; 3. a storage bin; 31. a bin body; 32. a support leg; 33. a support; 34. a support bar; 35. a dust cloth; 4. an adjusting plate; 5. a discharge port; 6. a current conversion device; 61. a gantry; 62. a U-shaped frame; 63. a steering lever; 64. a baffle; 65. a handle; 66. a first nut; 67. a second nut; 68. a spring; 7. a collection device; 71. a collection pipe; 72. a header; 73. and (4) discharging the pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the bean selecting process for raw material beans disclosed by the invention comprises the following steps: s1: checking and accepting raw material beans; s2: warehousing; s3: selecting a machine; s4: and (5) manually selecting.

The storage in step S2 is mainly to store raw material beans in a classified manner so as to be found by a worker. The warehousing further comprises the following steps: a1: weighing, namely weighing and recording at a weighing place according to purchasing indexes; a2: classifying, namely transporting the raw material beans into a transition room, classifying according to the types and series of the raw material beans, wherein the series comprises an export series, an internal selling series, a natto series, a kidney bean series and other series, and the raw material beans of each series are summarized together; a3: warehousing, namely respectively transporting the classified raw material beans to corresponding warehouses for storage; a4: and recording the newly put raw material beans, wherein the recording content comprises the names, the types, the quantity and the putting time of the raw material beans.

Referring to fig. 1, the primary selection in step S3 is mainly performed on raw material beans by mechanical equipment, and is used to remove part of impurities doped in the raw material beans and improve the quality of the raw material beans, and specifically includes the following steps: b1: winnowing, namely conveying the raw material beans to a wind power sorting machine through a lifting machine, and removing light impurities such as bean hulls, miscellaneous leaves, catkins and the like; b2: removing stones, conveying the raw material beans into a stone removing machine after air separation, and removing impurities such as stones, heavy minerals and the like doped in the raw material beans; b3: magnetic separation, after stone removal, the raw material beans are conveyed into a magnetic separator to remove substances with micro-magnetic mineral components, and the raw material beans are subjected to air separation, stone removal and magnetic separation continuously to achieve the purpose of primary separation.

Referring to fig. 1 and 2, after primary selection, the worker transports raw material beans to a selection platform 1 with a selection area 15 and a poor bean groove 16 for manual selection, so as to select the poor beans in the raw material beans, thereby further improving the quality of the raw material beans.

Select platform 1 and include conveyer belt 11, the rigid coupling is at the baffle 12 of conveyer belt 11 both sides, unsettled setting just is located the inboard division board 13 of two baffles 12 respectively in conveyer belt 11 top, fix the vibrations batcher 2 of conveyer belt 11 initiating terminal and install in vibrations batcher 2 top and with the sealed storage silo 3 that communicates of hopper down of vibrations batcher 2, division board 13 is unsettled to be fixed on corresponding baffle 12 through connecting plate 14, form the district 15 of selecting that supplies raw materials beans to place between two division boards 13, form the beans groove 16 of poor quality that supplies the beans to place between adjacent division board 13 and the baffle 12, the gap between division board 13 and the conveyer belt 11 is less than the size of beans, be used for preventing raw materials beans from getting into beans inslot 16 of poor quality.

Referring to fig. 2 and 3, the storage bin 3 comprises a bin body 31, support legs 32 fixedly connected to the outer wall of the bin body 31 to support the bin body, brackets 33 mounted on the upper edges of the two ends of the bin body 31 in the length direction, a support rod 34 connected between the two brackets 33, and dustproof cloth 35 laid on the two brackets 33 to cover the bin body 31; the bin body 31 is fixed above and communicated with a discharging hopper of the vibrating feeder 2; the brackets 33 are in an inverted V shape, the end parts of the brackets are respectively fixed on the bin body 31, the two ends of the support rod 34 are respectively fixedly connected at the top corners of the two brackets 33, and an expansion supporting structure is formed between the two brackets; the drooping part of the dustproof cloth 35 is fastened and fixed on the outer wall of the bin body 31; support 33, bracing piece 34 and dustproof cloth 35 for expand the storage space at storage silo 3 top, so that can deposit more former beans in storage silo 3 when the pay-off of starting up at every turn on, specifically embody: former raw material beans can form the toper gradually when piling up in the storehouse body 31, and original raw material beans when piling up, for preventing that it from crossing the cang ding and dropping, can make the cone top and the cang ding basic parallel and level of former raw material beans, and the cone bottom and the cang ding basic parallel and level that can make former raw material beans now reach the effect of dilatation.

Former beans after the primary election pass through lifting means and carry to storage silo 3 in, evenly tile to the district 15 of selecting of conveyer belt 11 after vibrations feed machine 2 vibrations feed on, prevent that former beans from piling up. The staff stands on the both sides of conveyer belt 11, sets up a station every 0.5m-0.8m, and when raw materials beans were located through every station, the staff of this station selected the raw materials beans in district 15 to this department and select, and will select the beans of poor quality of putting into poor quality beans groove 16, until raw materials beans and poor quality beans together convey to the end along with conveyer belt 11, collect both this moment respectively, saved the operation of collecting the beans of poor quality specially, improved work efficiency.

Referring to fig. 2, further, an adjusting plate 4 bent toward the sorting area 15 is respectively fixed to opposite sides of the two dividing plates 13, and is made of thin steel, and a worker can bend the adjusting plate as needed, so as to flexibly adjust the spreading width of the raw material beans in the sorting area 15, so as to be suitable for sorting raw material beans with different particle sizes.

Two discharge ports 5 are arranged at the tail end of the bean selecting area, and the blanking end of the bean selecting area is closed, so that the discharge width is smaller than the opening diameter of the packing belt, and high-quality raw material beans fall into the packing belt. The conveyor belt 11 is provided with a converter device 6 corresponding to the two discharge ports 5, and the converter device is used for switching between the two discharge ports 5 so as to bag in turn without stopping.

Referring to fig. 4, the commutation device 6 includes a gantry frame 61 fixed between two baffles 12 and above the discharge port 5, a U-shaped frame 62 fixed on the lower surface of the gantry frame 61, a steering rod 63 vertically passing through the cross beam of the gantry frame 61 and the cross plate of the U-shaped frame 62, and a deflector 64 fixed on the lower end of the steering rod 63 through an angle steel, wherein the distance between the deflector 64 and the U-shaped frame 62 is greater than the height of the discharge port 5, so that the worker can lift the deflector 64 to a position higher than the height of the discharge port 5 through the steering rod 63, thereby switching the direction of the deflector 64. For convenience of operation, a handle 65 formed in an L shape with the steering rod 63 is integrally connected to the top end of the steering rod 63. The steering rod 63 is in threaded connection with a first nut 66 on the rod body above the portal frame 61 and used for limiting the steering rod 63. A second nut 67 and a spring 68 are arranged on the rod body of the steering rod 63 in the U-shaped frame 62, the second nut 67 is in threaded connection with the steering rod 63, the spring 68 is sleeved on the steering rod 63, one end of the spring is abutted against the second nut 67, the other end of the spring is abutted against the lower surface of the cross beam of the portal frame 61, the spring 68 is always in a compressed state, so that the first nut 66 is abutted against the upper surface of the cross beam of the portal frame 61, the second nut 67 is abutted against the upper surface of the cross plate of the U-shaped frame 62, and under normal conditions, the guide plate 64 blocks one of the discharge ports 5.

When one of the packaging bags is to be filled, the steering rod 63 is lifted upwards through the handle 65, so that the guide plate 64 is higher than the discharge port 5, the spring 68 is in a compression state at the moment, after the position of the guide plate 64 is adjusted, the handle 65 is loosened, the guide plate 64 moves downwards under the action of the spring 68 and blocks the discharge port 5 below the guide plate, namely, one end of the guide plate is abutted to the baffle 12, the other end of the guide plate is abutted to the discharge port, the discharge port 5 is switched, and at the moment, the other packaging bag is collected.

Referring to fig. 4, a collecting device 7 is provided at the end of the two poor bean troughs 16 for collecting the poor beans. The collecting device 7 includes collecting pipes 71 fixed to the two baffle plates 12 and communicating with the ends of the corresponding poor-quality bean tanks 16, collecting pipes 72 connected to the lower ends of the collecting pipes 71 and inclined in the direction of approaching each other, and discharging pipes 73 communicating the collecting pipes 72 and having downward outlets, and the collecting pipes are Y-shaped.

When the poor beans are conveyed to the tail end along the conveyor belt 11, the poor beans roll into the collecting pipe 72 along the collecting pipe 71 and finally fall into the collecting bag below the collecting pipe 73, so that the automatic collection of the poor beans is realized, manual collection after selection is not needed, and the working efficiency is greatly improved.

Compared with the selection method in the prior art, the raw material beans are temporarily stored through the storage bin 3; the storage space at the top of the storage bin 3 is expanded through the bracket 33, the support rod 34 and the dustproof cloth 35; raw material beans are uniformly spread on a selecting area 15 of a conveyor belt 11 through a vibrating feeder 2, so that the raw material beans are prevented from being accumulated, and the raw material beans can be selected by workers conveniently; through the mode of selecting limit conveying while, so that the staff collects raw material beans and beans of poor quality, saved the operation of collecting beans of poor quality specially, improved work efficiency.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.