CN106622973A - Corn germ selecting machine - Google Patents

Abstract

The invention discloses a corn germ selecting machine. The corn germ selecting machine includes a rack, a germ selecting sieve device arranged on the rack, a driving device for driving the germ selecting sieve device to do longitudinal reciprocating motion, a feeding device which is arranged on the rack and feeds materials to the germ selecting sieve device, a classification air room device arranged above the germ selecting sieve device, a discharging device which is arranged on the rack and is positioned in a side of the germ selecting sieve device, and a residue collection device positioned under the germ selecting sieve device. The corn germ selecting machine can extract corn germs from smashed germ residue mixtures; the extraction rate of the corn germ selecting machine is more than 85% for core germs of mixed materials, and is more than 70% for pure residue.

Description

A kind of corn germ selection machine

technical field

The invention belongs to the technical field of grain processing machinery and equipment, and in particular relates to a corn germ selection machine.

Background technique

At present, domestic corn processing plants usually process corn into corn grains, corn flour, corn oil, corn germ oil, etc. During the processing process, corn germ needs to be extracted from the broken germ residue mixture, and then the purified corn residue is processed into corn grains, and the extracted corn germ is used to process germ oil. This processing method can bring corn processing plants to maximize economic benefits. However, in the case of limited current processing equipment, the processing plant can only adopt the method of wind selection and embryo pressing for processing. This processing method not only extracts less corn germ, but also the color of the processed corn kernels is also poor. , but also have to process a part of cheap cornmeal with low purity.

Contents of the invention

The purpose of the present invention is to overcome the defects of the prior art and provide a corn germ selection machine for extracting corn germ from the broken germ dregs mixture.

In order to achieve the above object, the technical scheme that the present invention takes is as follows:

A corn embryo selection machine, comprising a frame, an embryo selection screen device arranged on the frame, a driving device for driving the embryo selection screen device to reciprocate longitudinally, and a device arranged on the frame to feed the embryo selection screen device The feeding device, the grading air chamber device arranged above the embryo selection screen device, the discharge device arranged on the frame and located at the side of the embryo selection screen device, and the discharge device arranged on the frame and located under the embryo selection screen device slag collection device.

As a further improvement of the present invention, the grading air chamber device includes a suction hood whose lower port is sealed and closed on the germ selection screen device, a suction adjustment straight pipe connected to the upper port of the suction hood, and arranged at intervals The partitions inside the suction hood, the divided air passages formed by the adjacent partitions and the inner side wall of the suction hood, and the closed air passages that are connected to the suction hood and located in the corresponding divided air passages through the rotation of the closed air adjustment shaft. The plate and the adjustment handle fixedly connected to the end of the air-closing adjustment shaft and located outside the suction hood.

As a further improvement of the present invention, the embryo selection sieve body device includes a sieve body support side plate, an end plate respectively connected to the front end and rear end of the sieve body support side plate, and an upper sieve whose two sides are slidingly connected to the sieve body support side plate and a lower screen whose two sides are slidably connected to the supporting side plates of the screen body and located below the upper screen;

Both ends of the upper sieve and the lower sieve are fixedly connected to the end plates.

As a further improvement of the present invention, the suction adjustment straight pipe is provided with a throttling adjustment device;

The throttling adjustment device includes a damper shaft with two ends rotatably connected to the side wall of the air suction adjustment straight pipe, a damper plate fixed on the air damper shaft and located inside the air suction adjustment straight pipe, and one end fixedly connected to the end of the air damper shaft The adjustment support, the air volume indication plate fixedly connected to the side wall of the suction adjustment straight pipe and between the adjustment support and the outer side wall of the suction adjustment straight pipe, the screw rod hinged to the other end of the adjustment support and fixedly connected to the Suction adjusts the side wall of the straight pipe and the support plate set on the screw rod;

The damper shaft is rotatably connected with the air volume indicator board.

As a further improvement of the present invention, the driving device includes a pair of vibrating motors connected to the supporting side plate of the front screen body through a transmission shaft tube; the two vibrating motors rotate in opposite directions.

As a further improvement of the present invention, the rack includes rack stand plates, rack lower vertical supports and rack upper longitudinal supports respectively longitudinally connected between the rack stand plates, The top plate at the rear end of the rack, the top plate at the front end of the rack, and the hopper connecting pipe arranged on the top plate at the front end of the rack;

Both the lower vertical support of the frame and the inner side of the upper vertical support of the frame are provided with air-closing pressure plates.

As a further improvement of the present invention, the upper sieve includes an upper sieve plate rear assembly fixedly connected to the screen body support side plate and the front end plate, connected to the screen body support side plate and the rear end plate and positioned on the upper sieve plate The upper sieve plate on the rear side of the rear-end assembly and the balanced material adjustment structure arranged on the upper sieve plate;

The lower sieve includes a lower sieve plate directly below the upper sieve plate and lower side seasoning plates arranged on both sides of the upper surface of the lower sieve plate;

The lower side seasoning plate is located at the back section of the lower sieve plate.

As a further improvement of the present invention, the balanced material adjustment structure includes an upper side seasoning plate arranged on both sides of the upper sieve plate and located at the rear end plate, a hinge shaft arranged in the middle of the upper sieve plate, and the ends are hinged on The middle seasoning station plate on the hinged shaft and the adjustment control structure connected to the middle seasoning station plate;

The inner side of the middle seasoning station plate is provided with a middle seasoning pressing plate;

The adjustment control structure includes two adjustment pull plates hinged on the middle seasoning station plate through the adjustment plate positioning sleeve, the connecting shaft fixed at the end of the adjustment pull plate, the gears respectively set on the corresponding connecting shafts and meshing with each other, An adjustment pull plate connected to the connecting shaft, an adjustment screw rod fixedly connected to the adjustment pull plate at one end, a screw fixing sleeve set on the adjustment screw rod, and an adjustment handwheel fixed on the other end of the adjustment screw rod;

The end of the middle seasoning pressure plate is provided with an adjustment panel compression sleeve, a screw set in the adjustment panel compression sleeve to downwardly compress the middle seasoning pressure plate, and a compression sleeve liner for fixing the adjustment panel compression sleeve.

As a further improvement of the present invention, the feeding device includes a feeding hopper installed on the top plate of the front end of the frame, a feeding box communicated with the bottom of the feeding hopper through a feeding soft connection, and a feeding box arranged on the top of the feeding hopper. mouth;

The side of the feed hopper is provided with a hopper observation window;

The feed box includes a side plate of the feed box, a top plate of the feed box, a feed box equalizing plate arranged staggeredly on the inner wall of the side plate of the feed box from top to bottom, a first flow plate of the feed box and a feed box. The second flow plate of the box, the observation window of the feed box that can be opened and closed on the side plate of the feed box, and the hopper connecting pipe set on the top plate of the feed box;

The discharge device includes an upper discharge drawer corresponding to the upper sieve, a lower discharge drawer corresponding to the lower sieve, a passage connected between the upper discharge drawer and the lower discharge drawer, and a discharge inner partition arranged in the passage And the embryo material cylinder connected to the bottom of the lower discharge drawer;

An upper discharging drawer core board is arranged in the upper discharging drawer.

As a further improvement of the present invention, the slag collecting device includes a first slag receiving tank and a second slag receiving tank arranged side by side longitudinally under the lower sieve plate;

A fixed seat and a material shifting plate hinged on the fixed seat are installed on the middle partition between the first slag receiving tank and the second slag receiving tank;

A first slag outlet is provided at the bottom of the first slag receiving tank, and a second slag outlet is provided at the bottom of the second slag receiving tank;

The side part of the embryo selection screen device is slidingly connected with the lower vertical support of the frame and the upper vertical support of the frame through guide rails;

The inner side of the frame stand plate is provided with a frame horizontal support, and the lower end of the support side plate of the screen body is provided with a rubber spring pressure plate corresponding to the position of the frame horizontal support, and a rubber spring pressure plate is arranged between the support side plate and the rubber spring pressure plate. rubber spring;

Both the upper sieve and the lower sieve are inclined downward from the feed end to the discharge end, and the angle between them and the horizontal plane is set to 2.5°;

The installation angle between the vibrating motor and the vertical surface is 7.5°, and the upper end of the vibrating motor is tilted away from the outside of the embryo selection screen device;

The stand plate of the rack is provided with a mounting hole and a rubber cover plate covering the mounting hole.

Compared with prior art, the beneficial effect that the present invention obtains is as follows:

Because the thickness of the material on the vibrating sieve is always in a state of dynamic change during the continuous vibration and forward movement of the material, the amount of material decreases as it reaches the rear end, and the mass ratio of corn germ and corn dregs in the material is also constantly changing. The grading air chamber device adjusts the suction force of the air distribution channel relative to the material section by rotating the air closing plate to meet the suspension speed required by different sections, achieve the best screening effect of embryo selection, and achieve efficient embryo slag separation; the suction hood The shape of the lower body and the upper body of the body are round and square respectively. The upper body is convenient for air volume concentration, and the lower body is convenient for air volume distribution and balance. At the same time, the lower end is also convenient for sealing connection with the corn embryo selection machine; the observation window is convenient for observing the material characteristics, and timely adjusts the air closing plate in the The location of the air duct; the throttling adjustment device has an ingenious structure and is simple to manufacture; compared with the complicated electromagnetic switch, the cost is greatly reduced, and it is simple and easy to operate, especially suitable for the air volume throttling adjustment of the wind hood of the corn germ selection machine; the air volume indicator can be The value of the air volume can be observed intuitively; the disc spring releases part of the potential energy to maintain the stability of the screw during operation; the handwheel, screw and support form a simple pendulum structure, and the force transmission can be realized only by operating the handwheel. The whole working process; the balanced material adjustment structure is installed at the rear section of the screen surface of the embryo sorting machine, which can quickly and conveniently balance the materials on the screen surface, adjust the effective perforation area of the screen surface, and reduce the effective perforation area of the rear end of the screen surface of the embryo selection machine. According to the amount of material on the screen surface of the embryo sorting machine, the screw rod is rotated to adjust the hole-covering area of the middle seasoning station, so as to achieve the purpose of equalizing the thickness of the material and improving the extraction rate of corn germ; set the feeding box at the bottom of the feeding hopper, through The material entering the feeding hopper from the feeding port enters the feeding box through the feeding soft connection, and the uniform feeding of the material is completed in the feeding box. The feeding box equalizing board, the first feeding board of the feeding box and the second feeding board of the feeding box receive the material in the feeding hopper, buffer the impact of the material and evenly distribute the material to the screen of the corn germ separator On the surface, the screen surface is effectively protected, avoiding uneven dispersion of materials and local over-thickness, and the efficiency and quality of screening are improved; the slag collection device is provided with the first slag receiving tank and the second slag receiving tank under the screen body , when the material is advancing on the sieve surface of the corn germ separator, the materials that fall from the front to the back are heavy slag, flaked slag, continuous germ slag, and germ-containing slag; among them, heavy slag and flaked slag Does not contain corn germ, continuous germ dregs and germ-containing dregs contain corn germs; the heavy dregs and chip dregs falling from the front end are collected into the first slag receiving tank by rotating the shifting plate, and the continuous germ falling from the rear end is collected into the first slag receiving tank. The slag and germ-containing slag are collected into the second slag receiving tank and enter the next processing procedure to continue using the corn germ therein. The material shifting mechanism is simple in structure and easy to operate. It can quickly and conveniently adjust the direction of the material shifting plate according to the screening situation, effectively separate and collect the impurities falling from the sieve, and avoid the waste of corn germ; Corn embryo selection is carried out with a layered sieve structure, with a high embryo selection rate; the installation angle between the vibration motor and the front plate is 7.5°, and the upper end of the vibration motor is inclined to the outside of the front plate, which can fully classify the mixed materials without causing the mixture The material has a jumping phenomenon on the screen surface; the upper and lower grading screens are installed in the forming guide rail of the middle sieve body. In order to meet the needs of the mixed material to be fully classified and to ensure the rapid advancement of the lightweight embryo, the upper sieve and the lower sieve are from the front to the rear. The end is inclined downward, and the included angle with the horizontal plane is set to 2.5°; the driving device adopts a pair of vibrating motors with opposite rotation directions. The two vibrating motors in the vertical direction of the embryo selection screen form a combined force, and the two vibrating motors in the horizontal direction form a mutual offset. The opposite force ensures the regular reciprocating movement of the embryo selection screen in the longitudinal direction under the drive of two vibrating motors; After the slag mixture enters, it vibrates through the sieve body, so that the material presents a pre-classification of heavy slag and light embryos during the advancing process, that is, the heavy slag is on the bottom, and the light embryos are on the top. After the pre-graded material enters the upper sieve plate, it can The separation is faster; since the thickness of the material on the vibrating sieve grid is always in a dynamic state during the continuous vibration and forward movement of the material, the amount of material is less at the rear end, and the mass ratio of corn germ and corn dregs in the material is It is also constantly changing. The balanced material adjustment structure is installed at the rear of the upper sieve plate to quickly and conveniently balance the materials on the upper sieve plate, adjust the effective perforation area of the screen surface, and reduce the effective perforation area at the rear end of the upper sieve plate. According to the amount of material on the upper sieve plate, the screw rod is rotated to adjust the hole-covering area of the middle seasoning station plate, so as to achieve the purpose of equalizing the thickness of the material and improving the extraction rate of corn germ. The invention can extract the corn germ from the broken germ dregs mixture, the extraction rate of the corn germ of the mixed material is over 85%, and the extraction rate of the pure dregs is over 70%.

Description of drawings

Accompanying drawing 1 is the structural representation of the first axonometric direction of the present invention;

Accompanying drawing 2 is the structural representation of the first axonometric direction of the present invention;

Accompanying drawing 3 is the structural representation of classification air chamber device of the present invention;

Accompanying drawing 4 is the structural representation of the air duct of the present invention;

Accompanying drawing 5 is the structural representation of the throttling adjustment device of the present invention;

Accompanying drawing 6 is the structural representation of damper shaft of the present invention;

Accompanying drawing 7 is the schematic diagram that the present invention is installed in suction adjustment straight pipe state one;

Accompanying drawing 8 is the schematic diagram that the present invention is installed in suction adjustment straight pipe state two;

Accompanying drawing 9 is the structural representation of the balanced material adjustment structure of the present invention;

Accompanying drawing 10 is the structural representation of upper side seasoning plate of the present invention;

Accompanying drawing 11 is the structural representation of feeding device of the present invention;

Accompanying drawing 12 is the structural representation of feeding box of the present invention;

Accompanying drawing 13 is the structural representation of the slag collecting device of the present invention;

Accompanying drawing 14 is the structure schematic diagram of the fixing base of the present invention;

Accompanying drawing 15 is the structure diagram of the first slag receiving tank and the second slag receiving tank of the present invention;

Accompanying drawing 16 is the structural representation of embryo selection screen device of the present invention;

Accompanying drawing 17 is the structure schematic diagram of the rear end assembly of the upper sieve plate of the present invention;

Accompanying drawing 18 is the structural representation of transmission shaft tube of the present invention;

Accompanying drawing 19 is the structural representation of the frame of the present invention.

In the attached picture:

1 frame, 2 feeding hopper, 3 rubber spring, 4 suction cover, 5 suction adjustment straight pipe, 6 throttling adjustment device, 7 blank material barrel, 8 side plate, 9 lower discharge drawer, 10 adjustment Hand wheel, 11 guard, 12 hopper observation window, 13 wind hood observation window, 14 suction duct handle, 15 sieve body support side plate, 16 feed inlet, 17 frame horizontal support, 18 rubber spring pressure plate, 19 air inlet , 20 feeding box, 21 feeding soft connection, 22 vibration motor, 23 first slag receiving tank, 24 second slag receiving tank, 25 first slag outlet, 26 second slag outlet, 27 middle partition, 28 Fixed seat, 29 shifting plate, 30 upper sieve plate rear end assembly, 31 upper sieve plate, 32 upper side seasoning plate, 33 middle seasoning station plate, 34 hinge shaft, 35 middle seasoning pressure plate, 36 adjustment control structure, 37 lower level Sieve plate, 38 small particle aggregate side plate, 39 small particle aggregate bottom plate, 40 small particle discharge port, 41 partition, 42 air closing plate, 43 air closing adjustment shaft, 44 adjustment handle, 45 transmission shaft tube, 46 Discharge inner partition, 47 upper discharge drawer core board, 48 upper discharge drawer, 49 rubber cover plate, 50 observation window, 51 air duct, 52 front end plate, 53 rear end plate, 54 guide rail, 1-1 machine Rack stand plate, 1-2 rack lower vertical support, 1-3 rack upper vertical support, 1-4 closed air pressure plate, 1-5 rack rear end top plate, 1-6 rack front end top plate, 1-7 hopper Connecting pipe, 6-1 damper plate, 6-2 damper shaft, 6-3 shaft sleeve, 6-4 air volume indicator, 6-5 adjustment support, 6-6 screw rod, 6-7 support plate, 20-1 Feed box side panel, 20-2 feed box top plate, 20-3 feed box observation window, 20-4 feed box second plate, 20-5 feed box first plate, 20-6 feed box Evening plate, 20-7 hopper connecting pipe, 36-1 adjusting plate positioning sleeve, 36-2 adjusting pull plate, 36-3 give way slot, 36-4 connecting shaft, 36-5 gear, 36-6 connecting seat, 36-7 screw fixing sleeve, 36-8 adjusting screw, 36-9 adjusting handwheel, 36-10 compression sleeve liner, 36-11 adjustment panel compression sleeve.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in the accompanying drawings 1-19, it includes a frame 1, an embryo selection screen device arranged on the frame 1, a driving device for driving the longitudinal reciprocating motion of the embryo selection screen body device, and a pair of embryo selection screens arranged on the frame 1. The feeding device for feeding the body device, the grading air chamber device arranged above the embryo selection screen body device, the discharge device arranged on the frame 1 and positioned at the side of the embryo selection screen body device, and the discharge device arranged on the frame 1 and The slag collection device located under the embryo selection screen device.

The grading air chamber device includes a suction hood 4 whose lower port is sealed and closed on the embryo selection screen device, a suction regulating straight pipe 5 connected to the upper port of the suction hood 4, and a suction regulating straight pipe 5 arranged at intervals on the suction hood. 4. The internal partition 41, the air distribution channel 45 formed by the adjacent partition 41 and the inner wall of the suction cover 4, is rotatably connected to the suction cover 4 through the air closing adjustment shaft 43 and is located in the corresponding air distribution channel. The air closing plate 42 in 45 and the adjustment handle 44 fixedly connected to the end of the air closing adjustment shaft 43 and positioned at the outside of the suction cover 4 . According to the difference in the quality of corn germ and corn dregs, the air cover is used to provide suction, so that the suspension speed of the lighter corn germ is lower than that of the heavier corn dregs, and the corn dregs are preferentially sieved and dropped during the vibration. , so as to achieve the purpose of embryo selection. The side of described suction cover body 4 is provided with the wind shield observation window 13 that observes the working state of sub-air duct 51, and wind shield observation window 13 adopts transparent plexiglass, and wind shield observation window 13 is convenient to observe material characteristics, and timely adjusts the closed wind. The plate 42 is at the position of the air distribution channel 51 .

The embryo selection sieve body device includes a sieve body support side plate 15, an end plate respectively connected to the front end and rear end of the sieve body support side plate 15, an upper sieve with both sides slidingly connected to the sieve body support side plate 15, and two side portions. The lower screen is slidably connected with the support side plate 15 of the screen body and is located below the upper screen; both ends of the upper screen and the lower screen are fixedly connected to the end plate.

Said air suction adjustment straight pipe 5 is provided with a throttling adjustment device; said throttle adjustment device comprises a damper shaft 6-2 which is connected to the side wall of the suction air adjustment straight pipe 5 in rotation at both ends, fixed on the damper shaft 6 -2 on the damper plate 6-1 and one end fixedly connected to the adjusting support 6-5 at the end of the damper shaft 6-2, which is fixedly connected to the side wall of the suction regulating straight pipe 5 and The air flow indication plate 6-4 between the adjustment support 6-5 and the outside wall of the suction adjustment straight pipe 5, the screw mandrel 6-6 hinged at the other end of the adjustment support 6-5 and fixed connection on the suction adjustment The side wall of the straight pipe 5 and the support plate 6-7 sleeved on the screw rod 6-6; the damper shaft 6-2 is rotatably connected with the air volume indicator 6-4.

The driving device includes a pair of vibrating motors 22 connected to the front-end sieve body support side plate 15 through a transmission shaft tube 41; the two vibrating motors 22 rotate in opposite directions.

Described frame 1 comprises frame stand plate 1-1, vertical support 1-2 and vertical support 1-3 of the frame respectively longitudinally connected between the frame stand plate 1-1, vertical support 1-3 connected horizontally respectively The frame rear end top plate 1-5 and the frame front end top plate 1-6 at the top of the frame stand plate 1-1 and the hopper connecting pipe 1-7 arranged on the frame front end top plate 1-6;

The inner sides of the lower vertical support 1-2 of the frame and the upper vertical support 1-3 of the frame are all provided with air-closing pressure plates 1-4.

The upper sieve includes an upper sieve plate rear assembly 30 fixedly connected to the screen body support side plate 15 and the front end plate, and an upper sieve plate rear end assembly 30 connected to the screen body support side plate 15 and the rear end plate and positioned at the upper sieve plate rear end assembly. The upper sieve plate 31 on the rear side of 30 and the balanced material adjustment structure arranged on the upper sieve plate 31; the sieve hole diameter of the upper sieve plate 31 is 10mm.

The lower sieve includes a lower sieve plate 37 directly below the upper sieve plate 31 and lower side seasoning plates arranged on both sides of the upper surface of the lower sieve plate 37; the sieve diameter of the lower sieve plate 37 is 8mm.

The lower side seasoning plate is located at the rear section of the lower sieve plate 37 .

The balanced material adjustment structure includes an upper side seasoning plate 32 arranged on both sides of the upper sieve plate 31 and located at the rear end plate, a hinge shaft 34 arranged in the middle of the upper sieve plate 31, and the end is hinged on the hinge shaft 34 The middle seasoning station plate 33 on the top and the adjustment control structure 36 connected on the middle seasoning station plate 33;

The inner side of the middle seasoning station plate 33 is provided with a middle seasoning pressing plate 35;

The adjustment control structure 36 includes two adjustment pull plates 36-2 hinged on the middle seasoning station plate 33 through the adjustment plate positioning sleeve 36-1, and a connecting shaft 36-4 fixed at the end of the adjustment pull plate 36-2. , the gears 36-5 that are respectively set on the corresponding connecting shaft 36-4 and meshed with each other, the adjusting pull plate 36-6 connected with the connecting shaft 36-4, and the adjusting wire that is fixedly connected to the adjusting pull plate 36-6 at one end Rod 36-8, the screw mandrel fixing sleeve 36-7 that is sleeved on the adjustment screw rod 36-8 and the adjustment handwheel 36-9 that is fixed on the other end of the adjustment screw rod 36-8;

The end of the middle seasoning pressing plate 35 is provided with an adjustment panel compression sleeve 36-11, a screw that is set in the adjustment panel compression sleeve 36-11 and presses down the middle seasoning pressure plate 35, and a fixed adjustment panel compression sleeve 36-11. Compression sleeve liner 36-10.

The feeding device includes a feed hopper 2 installed on the top plate 1-6 at the front end of the frame, a feed box 20 communicated with the bottom of the feed hopper 2 through a flexible feed connection 21, and a feed box 20 arranged on the top of the feed hopper 2. Feed port 16;

The side of the feed hopper 2 is provided with a hopper observation window 12;

The feed box 20 includes a feed box side plate 20-1, a feed box top plate 20-2, and a feed box equalizing plate 20 arranged staggeredly on the inner wall of the feed box side plate 20-1 from top to bottom. -6, the first drop plate 20-5 of the feed box and the second drop plate 20-4 of the feed box, the feed box observation window 20-3 that can be opened and closed on the side plate 20-1 of the feed box and the setting The hopper connecting pipe 20-7 on the feed box top plate 20-2;

The discharge device includes an upper discharge drawer 44 corresponding to the upper sieve, a lower discharge drawer 9 corresponding to the lower sieve, a passage connected between the upper discharge drawer 44 and the lower discharge drawer 9, and a discharge drawer arranged in the passage. The material inner partition 42 and the blank material cylinder 7 connected to the bottom of the lower discharge drawer 9;

An upper discharge drawer core board 43 is arranged inside the upper discharge drawer 44 .

The slag collecting device includes a first slag receiving tank 23 and a second slag receiving tank 24 arranged side by side vertically below the lower sieve plate 37; A fixed seat 28 and a material shifting plate 29 hinged on the fixed seat 28 are installed on the partition 27; a first slag outlet 25 is provided at the bottom of the first slag receiving tank 23, and a first slag outlet 25 is provided at the bottom of the second slag receiving tank 24. There is a second slag outlet 26;

The side of the embryo selection screen device is slidably connected with the lower vertical support 1-2 of the frame and the upper vertical support 1-3 of the frame through guide rails 54; Support 17, the lower end of the support side plate 15 of the screen body is provided with a rubber spring pressing plate 18 corresponding to the position of the frame cross support 17, and a rubber spring 3 is arranged between the supporting side plate 15 and the rubber spring pressing plate 18; The sieve and the lower sieve are all inclined downwards from the feed end to the discharge end, and the angle between it and the horizontal plane is set to 2.5°; the installation angle between the vibration motor 22 and the vertical plane is 7.5°, and The upper end of the vibrating motor 22 tilts away from the outside of the embryo selection screen device; the rack stand plate 1-1 is provided with a mounting hole and a rubber cover plate 45 covering the mounting hole.

When the installation angle of the vibrator is above 10°, no matter how large the inclination angle of the sieve grid is, the grading of the embryo-slag mixture is more obvious; the material jumps upwards when it moves forward, and the heavy slag is less perforated on the length of the screen surface, and the pure slag It can be separated but almost no pure embryos can be separated.

The installation angle of the vibrator is 8°, and several sets of screening tests have been done under the matching of different sieve grid inclination angles. The data are shown in Table 1:

The installation angle of the vibrator is 7°, and several sets of screening tests have been done under the matching of different sieve grid inclination angles. The data are shown in Table 2:

The installation angle of the vibrator is 7.5°, and several sets of screening tests have been done under the matching of different sieve grid inclination angles. The data are shown in Table 3:

Based on the above test, through various considerations (i.e. output, pure slag and pure embryo output rate), the installation angle of the vibration motor 22 is selected to be 7.5°, and the installation angle of the upper screen and the lower screen is 2.5°.

Because the thickness of the material on the vibrating sieve is always in a state of dynamic change during the continuous vibration and forward movement of the material, the amount of material decreases as it reaches the rear end, and the mass ratio of corn germ and corn dregs in the material is also constantly changing. The grading air chamber device adjusts the suction force of the air distribution channel relative to the material section by rotating the air closing plate to meet the suspension speed required by different sections, achieve the best screening effect of embryo selection, and achieve efficient embryo slag separation; the suction hood The shape of the lower body and the upper body of the body are round and square respectively. The upper body is convenient for air volume concentration, and the lower body is convenient for air volume distribution and balance. At the same time, the lower end is also convenient for sealing connection with the corn embryo selection machine; the observation window is convenient for observing the material characteristics, and timely adjusts the air closing plate in the The location of the air duct; the throttling adjustment device has an ingenious structure and is simple to manufacture; compared with the complicated electromagnetic switch, the cost is greatly reduced, and it is simple and easy to operate, especially suitable for the air volume throttling adjustment of the wind hood of the corn germ selection machine; the air volume indicator can be The value of the air volume can be observed intuitively; the disc spring releases part of the potential energy to maintain the stability of the screw during operation; the handwheel, screw and support form a simple pendulum structure, and the force transmission can be realized only by operating the handwheel. The whole working process; the balanced material adjustment structure is installed at the rear section of the screen surface of the embryo sorting machine, which can quickly and conveniently balance the materials on the screen surface, adjust the effective perforation area of the screen surface, and reduce the effective perforation area of the rear end of the screen surface of the embryo selection machine. According to the amount of material on the screen surface of the embryo sorting machine, the screw rod is rotated to adjust the hole-covering area of the middle seasoning station, so as to achieve the purpose of equalizing the thickness of the material and improving the extraction rate of corn germ; set the feeding box at the bottom of the feeding hopper, through The material entering the feeding hopper from the feeding port enters the feeding box through the feeding soft connection, and the uniform feeding of the material is completed in the feeding box. The feeding box equalizing board, the first feeding board of the feeding box and the second feeding board of the feeding box receive the material in the feeding hopper, buffer the impact of the material and evenly distribute the material to the screen of the corn germ separator On the surface, the screen surface is effectively protected, avoiding uneven dispersion of materials and local over-thickness, and the efficiency and quality of screening are improved; the slag collection device is provided with the first slag receiving tank and the second slag receiving tank under the screen body , when the material is advancing on the sieve surface of the corn germ separator, the materials that fall from the front to the back are heavy slag, flaked slag, continuous germ slag, and germ-containing slag; among them, heavy slag and flaked slag Does not contain corn germ, continuous germ dregs and germ-containing dregs contain corn germs; the heavy dregs and chip dregs falling from the front end are collected into the first slag receiving tank by rotating the shifting plate, and the continuous germ falling from the rear end is collected into the first slag receiving tank. The slag and germ-containing slag are collected into the second slag receiving tank and enter the next processing procedure to continue using the corn germ therein. The material shifting mechanism is simple in structure and easy to operate. It can quickly and conveniently adjust the direction of the material shifting plate according to the screening situation, effectively separate and collect the impurities falling from the sieve, and avoid the waste of corn germ; Corn embryo selection is carried out with a layered sieve structure, with a high embryo selection rate; the installation angle between the vibration motor and the front plate is 7.5°, and the upper end of the vibration motor is inclined to the outside of the front plate, which can fully classify the mixed materials without causing the mixture The material has a jumping phenomenon on the screen surface; the upper and lower grading screens are installed in the forming guide rail of the middle sieve body. In order to meet the needs of the mixed material to be fully classified and to ensure the rapid advancement of the lightweight embryo, the upper sieve and the lower sieve are from the front to the rear. The end is inclined downward, and the included angle with the horizontal plane is set to 2.5°; the driving device adopts a pair of vibrating motors with opposite rotation directions. The two vibrating motors in the vertical direction of the embryo selection screen form a combined force, and the two vibrating motors in the horizontal direction form a mutual offset. The opposite force ensures the regular reciprocating movement of the embryo selection screen in the longitudinal direction under the drive of two vibrating motors; After the slag mixture enters, it vibrates through the sieve body, so that the material presents a pre-classification of heavy slag and light embryos during the advancing process, that is, the heavy slag is on the bottom, and the light embryos are on the top. After the pre-graded material enters the upper sieve plate, it can The separation is faster; since the thickness of the material on the vibrating sieve grid is always in a dynamic state during the continuous vibration and forward movement of the material, the amount of material is less at the rear end, and the mass ratio of corn germ and corn dregs in the material is It is also constantly changing. The balanced material adjustment structure is installed at the rear of the upper sieve plate to quickly and conveniently balance the materials on the upper sieve plate, adjust the effective perforation area of the screen surface, and reduce the effective perforation area at the rear end of the upper sieve plate. According to the amount of material on the upper sieve plate, the screw rod is rotated to adjust the hole-covering area of the middle seasoning station plate, so as to achieve the purpose of equalizing the thickness of the material and improving the extraction rate of corn germ. The invention can extract the corn germ from the broken germ dregs mixture, the extraction rate of the corn germ of the mixed material is more than 85%, and the extraction rate of the pure dregs is more than 70%.

The implementation manners described above are only preferred embodiments of the present invention, rather than an exhaustive list of feasible implementations of the present invention. For those skilled in the art, any obvious changes made without departing from the principle and spirit of the present invention should be considered to be included in the protection scope of the claims of the present invention.

Claims (10)

1. A corn embryo selection machine, characterized in that: it comprises a frame (1), an embryo selection screen device arranged on the frame (1), a driving device for driving the embryo selection screen body to move longitudinally, and a device The feeding device on the frame (1) for feeding the embryo selection sieve device, the grading air chamber device arranged above the embryo selection sieve device, and the device on the frame (1) and located on the side of the embryo selection sieve device The discharge device of the upper part and the slag collection device arranged on the frame (1) and located below the embryo selection screen device. 2. A corn embryo selection machine according to claim 1, characterized in that: the grading air chamber device includes a suction cover (4) whose lower port is sealed and closed on the embryo selection screen device, connected to the suction The air suction adjustment straight pipe (5) on the upper port of the air hood (4), the partitions (41) arranged at intervals inside the suction hood (4), the adjacent partitions (41) and the suction hood ( 4) The divided air channel (45) formed on the inner side wall, the air closed plate (42) connected to the suction cover (4) and located in the corresponding air divided channel (45) through the rotation of the closed air adjustment shaft (43) ) and the adjustment handle (44) fixedly connected to the end of the air-closing adjustment shaft (43) and located outside the suction cover (4). 3. A corn embryo selection machine according to claim 2, characterized in that: the germ selection screen device includes a screen support side plate (15), respectively connected to the front end of the screen body support side plate (15) and The end plate at the rear end, the upper sieve whose two sides are slidably connected to the sieve body support side plate (15), and the lower sieve whose both sides are slidably connected to the sieve body support side plate (15) and located below the upper sieve; Both ends of the upper sieve and the lower sieve are fixedly connected to the end plates. 4. A corn embryo selection machine according to claim 3, characterized in that: said suction adjustment straight pipe (5) is provided with a throttling adjustment device; The throttling adjustment device includes a damper shaft (6-2) that is connected to the side wall of the suction adjustment straight pipe (5) in rotation at both ends, and is fixed on the damper shaft (6-2) and located on the suction adjustment straight pipe. (5) The inner damper plate (6-1), one end of which is fixedly connected to the adjustment support (6-5) at the end of the damper shaft (6-2), is fixedly connected to the side wall of the suction adjustment straight pipe (5) and The air volume indicator (6-4) located between the adjustment support (6-5) and the outer wall of the suction adjustment straight pipe (5), the screw rod (6 -6) and the support plate (6-7) fixedly connected to the side wall of the suction adjustment straight pipe (5) and set on the screw rod (6-6); The damper shaft (6-2) is rotationally connected to the air volume indicator (6-4). 5. A corn embryo selection machine according to claim 4, characterized in that: the driving device includes a pair of vibration motors ( 22); the rotation directions of the two vibration motors (22) are opposite. 6. A corn embryo selection machine according to claim 5, characterized in that: the frame (1) includes a frame stand plate (1-1), which are longitudinally connected to the frame stand plate (1-1 ) between the lower vertical support (1-2) of the rack and the upper vertical support (1-3) of the rack, and the top plate (1-5 ) and the top plate (1-6) at the front end of the rack and the hopper connecting pipe (1-7) arranged on the top plate (1-6) at the front end of the rack; Both the lower longitudinal support (1-2) of the frame and the upper longitudinal support (1-3) of the frame are provided with air-closing pressure plates (1-4) inside. 7. A corn embryo selection machine according to claim 6, characterized in that: the upper sieve includes a rear end assembly (30 ), the upper sieve plate (31) connected to the support side plate (15) and the rear end plate of the sieve body and located on the rear side of the upper sieve plate rear end assembly (30), and the balance set on the upper sieve plate (31) Material adjustment structure; The lower sieve includes a lower sieve plate (37) directly below the upper sieve plate (31) and lower side seasoning plates arranged on both sides of the upper surface of the lower sieve plate (37); The lower side seasoning plate is located at the back section of the lower sieve plate (37). 8. A corn embryo selection machine according to claim 7, characterized in that: the balanced material adjustment structure includes upper side seasoning plates arranged on both sides of the upper sieve plate (31) and located at the rear end plate (32), the hinge shaft (34) set in the middle of the upper sieve plate (31), the middle seasoning station plate (33) whose end is hinged on the hinge shaft (34), and the middle seasoning station plate (33) connected The regulation control structure of (36); The inner side of the middle seasoning station (33) is provided with a middle seasoning pressing plate (35); The adjustment control structure (36) includes two adjustment pull plates (36-2) respectively hinged on the middle seasoning station plate (33) through the adjustment plate positioning sleeve (36-1), fixed on the adjustment pull plate (36- 2) The connecting shaft (36-4) at the end, the gears (36-5) that are respectively set on the corresponding connecting shaft (36-4) and meshed with each other, and the adjustment pull plate connected with the connecting shaft (36-4) (36-6), one end of which is fixedly connected to the adjustment screw (36-8) on the adjustment pull plate (36-6), the screw fixing sleeve (36-7) set on the adjustment screw (36-8) And the adjusting handwheel (36-9) fixed on the other end of the adjusting screw mandrel (36-8); The end of the middle seasoning pressure plate (35) is provided with an adjustment panel compression sleeve (36-11), a screw that is set in the adjustment panel compression sleeve (36-11) and presses down the middle seasoning pressure plate (35) and fixed Adjust compression sleeve liner (36-10) for panel compression sleeve (36-11). 9. A corn embryo selection machine according to claim 8, characterized in that: the feeding device includes a feeding hopper (2) installed on the top plate (1-6) at the front end of the frame, Connecting (21) the feeding box (20) connected to the bottom of the feeding hopper (2) and the feeding port (16) arranged on the top of the feeding hopper (2); The side of the feed hopper (2) is provided with a hopper observation window (12); The feed box (20) includes a feed box side plate (20-1), a feed box top plate (20-2), which are arranged staggeredly on the inner wall of the feed box side plate (20-1) from top to bottom The feed box equalizing plate (20-6), the first feed box plate (20-5) and the feed box second plate (20-4), set on the feed box side plate (20-1 ) on the feeding box observation window (20-3) that can be opened and closed and the hopper connecting pipe (20-7) arranged on the feeding box top plate (20-2); The discharge device includes an upper discharge drawer (44) corresponding to the upper sieve, a lower discharge drawer (9) corresponding to the lower sieve, and a discharge drawer (9) connected between the upper discharge drawer (44) and the lower discharge drawer (9). channel, the discharge inner partition (42) arranged in the channel, and the blank discharge cylinder (7) connected under the lower discharge drawer (9); The upper discharging drawer (44) is provided with an upper discharging drawer core board (43). 10. A corn embryo selection machine according to claim 9, characterized in that: the slag collection device includes a first slag receiving tank (23) and a second Slag receiving tank (24); A fixing seat (28) and a material shifting plate ( 29); The bottom of the first slag receiving tank (23) is provided with a first slag outlet (25), and the bottom of the second slag receiving tank (24) is provided with a second slag outlet (26); The side part of the embryo selection screen device is slidingly connected with the lower vertical support (1-2) of the frame and the upper vertical support (1-3) of the frame through guide rails (54); The inner side of the frame stand (1-1) is provided with a frame horizontal support (17), and the lower end of the screen body support side plate (15) is provided with a rubber spring pressure plate corresponding to the position of the frame horizontal support (17) (18), a rubber spring (3) is arranged between the supporting side plate (15) and the rubber spring pressure plate (18); Both the upper sieve and the lower sieve are inclined downward from the feed end to the discharge end, and the angle between them and the horizontal plane is set to 2.5°; The installation angle between the vibration motor (22) and the vertical surface is 7.5°, and the upper end of the vibration motor (22) is inclined away from the outside of the embryo selection screen device; The rack stand plate (1-1) is provided with a mounting hole and a rubber cover plate (45) covering the mounting hole.