CN1338334A - Rotary swinging separater - Google Patents

Abstract

A rotation-rocking separator for separating the husked rice from unhusked rice is composed of a verticalar shaft including eccentrical segments, a shaft driver, separating containers with conic separating plates with fan shape and attached to said eccentric segments, and limiter of separating container. The extending line of axis of each eccentrical segment has a small angle relative to the axis of shaft, so said separating container is inclined relatively to horizontal level. When said shaft is rotating, said separating containers do rotary rocking movement around the cross point of said extending line and the axis of shaft.

Description

Rotary swinging separater

The present invention relates to a kind of separator, be used for after rice is removed rice husk by the rice hulling machine, mixed with rice being separated into band shell rice and brown rice, more particularly, related to a kind of separator type, the separation container that one of its rotary oscillation has fan-shaped separating plate carries out this separation.

Japanese patent application No. Heisei 10-51482 by the same assignee's application of the application discloses such rotary swinging separater, separator comprises a separation container of being hung by many tie rods, tie rod radially extends downwards from the top that motionless scaffold top is defined as fulcrum, and in container, have many pyramidal fan-shaped separating plates of being arranged to, a vertical axis, it is positioned under the scaffold and has an eccentric part that is connected with container bottom by universal joint, and one is used for the drive unit of driving shaft rotationally.When separator was worked, the rotation of axle made separation container do eccentric rotation around fulcrum, and rotary oscillation separating plate and come mixed rice is separated into band shell rice and brown rice thus.In this device,, exist the shortcoming that increases machine height and machine installing space owing to hang separation container with many tie rods.The existence of fulcrum causes and is difficult to separation container is mounted to stacked system.

The purpose of this invention is to provide a kind of rotary swinging separater, can rotary oscillation be arranged to each separation container of multilayer, simultaneously, can not increase the height of machine and the installing space of machine.

Another object of the present invention provides such rotary swinging separater, and separating belt shell rice and brown rice on the separating plate in separation container make band shell rice to discharge by separation container effectively.

Another purpose of the present invention provides such rotary swinging separater, can keep the thickness of mixed with rice layer constant substantially on separating plate.

Because a kind of rotary swinging separater is provided, can achieve the above object according to the present invention, separator comprises a vertical rotating shaft that is supported to be used to rotate and have an axis, a device that drives rotating shaft rotationally, above-mentioned rotating shaft comprises the eccentric segment with the rotating shaft axis biasing, be contained on the eccentric segment rotationally and have the separation container of many fan-shaped separating plates (separating plate is arranged to cone-shaped) in separation container, be used to the separation container stopping means that prevents that separation container from freely rotating, each eccentric segment has the axis of oneself, its extended line that makes progress becomes a minute angle with rotating shaft axis, make it be higher than on the eccentric segment a bit on intersect with the extended line of rotating shaft axis, separation container is with respect to the horizontal plane for tilting thus, make that they are around making rotary oscillation as the eccentric segment axis of imaginary fulcrum and the intersection point between the rotating shaft axis extended line when rotating shaft rotates.

According to the present invention, each eccentric segment comprises the upper and lower eccentric part that separation container is installed rotationally.Another for the embodiment that substitutes in, each eccentric segment is by being determined that than the minor diameter eccentric cam with than the major diameter eccentric cam eccentric cam with respect to the horizontal plane is fixed on the straight rotating shaft slightly obliquely, and determined upper and lower eccentric part.

In a preferred embodiment of the invention, separator also comprises an annular weir, it is positioned on the fan-shaped separating plate at each separation container center and has an opening that is used to discharge band shell rice, a gate that is used to open and close the cofferdam opening, and the device of a manipulation gate.According to the sensor output signal that is used for detecting band shell rice of mixed with rice on the separating plate and brown rice, come the device of starting control gate.

In another preferred embodiment of the present invention, separator comprises a device, is used to adjust the inclination angle of fan-shaped separating plate in the separation container.A height sensor is provided, has been used to detect the thickness of mixed with rice layer on the separating plate.When height sensor detects rice layer and with predetermined thickness deviation arranged, handle adjusting device and adjust the inclination angle steepening of separating plate or flatten.

In order more completely to understand the present invention and additional characteristic and advantage thereof, can be with reference to detailed description below in conjunction with accompanying drawing.

Fig. 1 is the rice hulling machine perspective view with rotary swinging separater of the present invention, and its part is cut;

Fig. 2 is the view similar in appearance to Fig. 1, but has represented the opposite side that faces toward with Fig. 1;

Fig. 3 is the rice hulling machine vertical cut-away schematic view with rotary swinging separater of the present invention, has represented the drive unit of separator;

Fig. 4 is the rice hulling machine schematic diagram with separator;

Fig. 5 is the vertical sectional view of rotary swinging separater of the present invention;

Fig. 6 is similar in appearance to Fig. 5, and one that has represented rotary swinging separater of the present invention for alternate embodiment;

Fig. 7 is the diagrammatic top plan view of separation container;

Fig. 8 is the perspective view of a mechanism, is used to adjust the inclination angle of separating plate in the separation container;

Fig. 9 is the schematic diagram of separation container, has represented the spin fluctuation theory of separation container;

Figure 10 is the plan view from above that is positioned at cofferdam on the separating plate;

Figure 11 is the vertical sectional view of Figure 10;

Figure 12 is the plan view from above of separation container, has a band shell rice and brown rice sensor and a height sensor on separating plate;

Figure 13 is the view of height sensor, has represented to detect the function of mixed with rice layer thickness;

Figure 14 is the view similar in appearance to Figure 13, but has represented different height sensors; And

Figure 15 has represented the relation between the mixed with rice released state on height sensor and the separating plate.

Referring to figs. 1 through 4, the equipment 1 of hulling machine and separator comprises a rice hulling machine 3, it comprises a pair of roller 2 and 2 that is used for the rice shelling, a handle is separated into the rotary swinging separater 5 of band shell rice and brown rice by the rice of rice hulling machine 3, one is got rid of device 6 separating the throwing that brown rice is discharged to outside the machine, one is recovered to screw spreader 7 in the rice hulling machine 3 to band shell rice, and one is got rid of device 8 to the throwing that band shell rice is fed to the rice hulling machine 3 from Mi Yuan.Storage of numbering 9 expressions is by the tank of the mixed with rice of being with shell rice and brown rice to form, and numbering 10 is represented the hopper of an input tape shell rice, and the shell of a fan of numbering 11 expressions is used for raising rice husk from the rice that is shelled by hulling machine 3.

With reference to Fig. 3, it has illustrated the details of rotary swinging separater 5, and separator comprises that 13, two on a rotating shaft that is positioned at machine frame 12 centers is installed in separation container 4A and 4B on the rotating shaft 13 with stacked system.The upper end of rotating shaft 13 is bearing in the bearing 14 at machine frame 12 tops rotationally, and the lower end is bearing in the bearing 15 of machine frame 12 bottoms.Belt wheel 16 is fixed on the lower end of rotating shaft 13, and is connected with the belt wheel 19 of motor 18 by conveyer belt 17, and electrical power is driven rotating shaft 13 rotationally by predetermined number of revolutions.

With reference to Fig. 5, rotating shaft 13 is provided with eccentric segment 21A and 21B, and they and rotating shaft axis 20 are setovered and be spaced from each other 180 degree angles, make separation container 4A and 4B be installed on the eccentric segment rotationally with balance mode. Eccentric segment 21A and 21B have axis P and Q respectively, with the extension that is inclined upwardly of 20 one-tenth minute angles of rotating shaft 13 axis, make be higher than on eccentric segment 21A or the 21B a bit on, the extended line of every axis P and Q is crossing with the axis 20 of rotating shaft 13.Therefore, the eccentric degree of each eccentric segment increases from the top to the bottom gradually.More particularly, down eccentric segment 23A and 23B eccentric degree make that greater than eccentric segment 22A and 22B on each of eccentric segment their relative horizontal planes slightly tilt when being installed on the eccentric segment to separation container 4A and 4B to each of eccentric segment.

Have sidewall 26A and 26B on the periphery of separation container 4A and 4B, and be formed for the pit 30A and the 30B of accommodating belt shell rice respectively on bottom 29A and 29B, the delivery chute 42A and the 42B that are represented by dotted lines are attached thereto.Separation container 4A and the 4B installation on eccentric segment is finished by first wheel spare 28A and 28B, first wheel spare is contained on eccentric part 22A and the 22B by bearing 24A and 24B, and the many pull bar 27A and the 27B that rely on an end to be fixed on sidewall 26A and the 26B support from sidewall 26A and 26B, in the separation container bottom, installation is finished by the second hub member 31A and 31B, second hub member is contained in down on eccentric part 23A and the 23B by bearing 25A and 25B, and is fixed on the bottom of pit 30A and 30B.

With reference to Fig. 6, Biao Shi rotary swinging separater is basically with shown in Figure 5 identical here, but except the layout of rotating shaft 13.In this embodiment, eccentric segment 21A and 21B determine that by small-diameter eccentric cam 36A and 36B and major diameter eccentric cam 37A and 37B they with respect to the horizontal plane are fixed on the straight rotating shaft 13 slightly obliquely by one group of screw 38 respectively. Many pull bar 27A and 27B that first wheel spare 28A and 28B rely on an end to be fixed on sidewall 26A and the 26B support from sidewall 26A and 26B, and are installed on small-diameter eccentric cam 36A and the 36B by bearing 24A and 24B respectively.The second hub member 31A and the 31B that are fixed on pit 30A and the 30B are installed on major diameter eccentric cam 37A and the 37B by bearing 25A and 25B respectively.Opposite 180 degree in eccentric cam 36A, 36B and 37A, 37B orientation, so separation container 4A and 4B are interlaced, and with respect to the horizontal plane be contained on the rotating shaft slightly obliquely.Numbering 39A and 39B represent dust cap, are used to prevent that any dust from entering eccentric cam 37A and 37B and bearing 25A and 25B, and dust cap 39A and 39B are fixed to rotation therewith on eccentric cam 37A and the 37B.

As can be seen, many fan- shaped separating plate 33A and 33B are arranged to cone shape in separation container 4A and 4B from Fig. 5 to 7.Adjacent separating plate is overlapping on its limit.Be provided with device 32A and 32B under the separating plate in separation container, be used to adjust the inclination angle of separating plate 33A and 33B.Adjusting device comprises the cam 51 of a cylindricality, it is contained in the bottom 29A of each separation container or 29B and goes up by predetermined angular and rotate and have many oblique cam paths 50, a drive unit 53, but it can be a reverse motor 52 that is suitable for rotating drum cam 51, and scaffold 57, its end has the pin 54 that cooperates with drum cam 51 convexity races 50, and the other end relies on fulcrum pin 56 to be bearing on the support 55 that is fixed in separation container 4A or 4B sidewall 26A or 26B.Scaffold 57 also separating plate 33A or 33B from following surface bearing.In Fig. 8, can see too clearly, but drive unit 53 comprises a pinion 58 on reverse motor 52 output shafts, and a sector 59, it is located on the drum cam 51 and cooperates drum cam 51 is passed in the rotation of motor with pinion 58.The rotation of drum cam 51 is guiding pin 54 to move along the cam path 50 that tilts, and separating plate 33A or 33B are rotated around fulcrum pin 56.Therefore, can be with any suitable angle adjustment separating plate 33A between 8 to 12 degree and the inclined degree of 33B.Each separating plate 33A and 33B can have many radial grooves in its surface, help separating belt shell rice and brown rice when swing, and separation is because their particle size difference and specific gravity difference cause.In Fig. 1 and 2, can see too clearly, between the sidewall 26A of separation container 4A and 4B and 26B and machine frame 12, be connected many coil springs 35, be used to prevent that separation container 4A and 4B from rotating freely when work.

With reference to Fig. 9, it has illustrated the operation principle of the last separation container 4A of rotary swinging separater in the first embodiment of the invention.When axle 13 when direction shown in the arrow is rotated, separation container 4A makes rotary oscillation around the intersection point 20 of eccentric segment 21A axis Q extended line and rotating shaft 13 axis P extended lines between solid line position and dotted line position, intersection point 20 is defined as an imaginary fulcrum.Obviously, separation container 4B finishes identical motion.Because separation container is installed on the eccentric segment rotationally, the axis of eccentric segment has inclination with respect to rotating shaft, therefore can overlapping placement separation container and machine height does not significantly increase.

When the hulling machine band separator 1 work, the mixed with rice of being made up of band shell rice and brown rice was fed in rotary oscillation separation container 4A and the 4B by delivery chute 40 from its tank 9.Near because the circumferential speed that the mixed with rice on the separation container inner cone shape fanning strip is increased sidewall 26A and 26B, and fan- shaped separating plate 33A and 33B are with respect to the horizontal plane for tilting, the brown rice that the less and proportion of particle size is bigger under centrifugal action transmits towards sidewall 26A and 26B direction on separating plate, and the band shell rice that particle size is big and proportion is lower on separating plate 33A and 33B towards the separation container central slide.Brown rice is discharged by each sidewall 26A and 26B split shed 26 ' (Fig. 7), and throws through passing away 41A or 41B and discharge and to get rid of device 6 and be discharged to outside the machine.When band shell rice is stopped by each annular weir 34A and 34B, shift to the opening 60 in the cofferdam.Therefore, band shell rice grain pattern is crossed opening 60 and is fallen in pit 30A or the 30B, delivers to screw spreader 7 by discharging delivery chute 42A or 42B therefrom, makes band shell rice get back to hulling machine 3 and does further shelling.Brown rice outlet opening 26 ' and be with shell rice outlet opening 60 preferably to be spaced from each other 180 degree.Each mixed with rice delivery chute 40 is preferably along the directions that transmit mixed with rice on separating plate, is located at and is separated by on the RADIALs of 45 degree with shell rice outlet opening center.

With reference to Figure 10 and 11, they describe the separating plate 33A of separation container 4A and the relation between the annular weir 34A in detail.Annular weir 34A is positioned on the separating plate 33A, has connected many coil springs 65 between annular weir 34A and separating plate 33A, makes cofferdam 34A to move up and down according to the adjustment at inclination angle, has prevented the gap that may form between separating plate and cofferdam.Rely on fulcrum 62 that a gate 61 is bearing on the 34A of cofferdam rotationally, open and close the outlet opening 60 of band shell rice.Actuator 63 such as solenoid 63 is fixed on the machine frame, and is connected with gate 61 by rope 64.Solenoid switched on handle gate 61, close opening 60 thus.Be appreciated that,, also can adopt cylinder though illustrated and described solenoid as actuator.Although 4A is described to separation container, obviously same device can be used for the separation container 4B with respect to annular weir 34B.

With reference to Figure 12, on the fan-shaped separating plate 33A of separation container and 33B, be provided with sensor 66.Effect of light is reflected light on band shell rice and brown rice and from them.Because from the reflection ray intensity difference that they receive there, sensor 66 is used to distinguish band shell rice and the brown rice on separating plate.Therefore, sensor can detect the border of being with on the separating plate between shell rice zone and the brown rice zone.The position of sensor 66 is located at from the separation container center by on the RADIAL of opening 60, slightly in the inboard of being with border between shell rice zone and the brown rice zone.

Self-separation work begun through time enough make mixed with rice thickness stable after, between band shell rice zone and brown rice zone, obviously set up as Figure 12 in the borders of numbering 67 expressions.At this moment, sensor 66 detects band shell rice, and the signal of " opening " is provided.To actuator 63 energising, handle gate 61 by being set between 0.5 to 1.5 second any suitable temporal timer (not shown) according to the signal of sensor, open opening 60 thus.Band shell rice is discharged in pit 30A or the 30B by opening 60 rapidly, makes segment boundary among Figure 12 form the recessed district towards opening 60.After the time-out of timer setting went, gate 61 was handled in 63 outages to magnetic valve, closes opening 60 thus.The thickness of band shell rice layer increases once more, several seconds inner boundaries from the state shown in 39 get back to by 39 ' shown in reset condition.When sensor detects band shell rice layer once more, repeat 61 operations of same gate.Therefore move on to preposition when band shell rice zone, the opening that the band shell rice grain pattern that is blocked is crossed in the cofferdam is discharged, and returns from this position when the zone of band shell rice, stops the discharge with shell rice.Like this, during the mask work that begins from separation, control the discharge rate of band shell rice by the ratio of band shell rice layer and brown rice on the cone-shaped separating plate.Certainly, also can magnetic valve be switched on and handle gate, open band shell rice outlet opening 60 thus by the hand switch (not shown).

If in mask work, such as the humidity of mixed with rice, its physical propertys such as coefficient of friction do not change, and then mixed with rice are separated into and are with the ability of shell rice and brown rice also constant.But, have different physical propertys if isolate the mixed with rice of band shell rice and brown rice, then the mixed with rice layer thickness on separating plate will change, and separating power will change thus.According to the present invention, can adjust the separating plate inclination angle of separation container according to the variation of mixed with rice layer thickness, and needn't change the supply of mixed with rice and the suitable thickness that revolution keeps the mixed with rice layer.

With reference to Figure 12, also provide a sensor 68 to detect the thickness that each separating plate 33A and 33B go up mixed with rice.Sensor 68 is positioned at band shell rice outlet opening 60 downstreams near cofferdam 34A, 34B, avoiding crossing the influence that opening 60 is discharged with the shell rice grain pattern, and can detect the band shell rice layer region with constant thickness.As seeing in Fig. 5 and 6, sensor 68 is contained on the connecting rod 69 parallel with separating plate 33A or 33B.Sensor 68 can be apart from the optoelectronic switch of setting type (by the ES3-L type of OMURON limited company manufacturing), perhaps can be the optoelectronic switch of simulation output type.

Figure 13 illustrated be used to detect meter layer thickness apart from setting type photoelectric sensor 68.This sensor 68 comprises a light projector 70 of the parallel rays directive being wanted surveyed area, a collector lens 71 of collecting reflection ray from object to be detected, and photelectric receiver 72, it is arranged on collector lens 71 back, and comprise the optical diode N that is suitable for accepting nearer light and be suitable for accepting optical diode F that these elements all are contained in the shell 73 than the distance light line.Sensor 68 can monitor from mixed with rice upper limit height L0 on the separating plate to optical diode N preset distance (for example, distance from separating plate 33 is 15mm), and the preset distance from mixed with rice lower limit height L1 on the separating plate to optical diode F (for example, the distance from separating plate 33 is 10mm).Therefore, the suitable thickness of mixed with rice is between height L0 and L1.Under the effect of optical diode N and F " opening " or " pass ", but to reverse motor 52 energisings or outage.

When the mixed with rice layer thickness was increased to L1 after mask work begins, optical diode F and N all were in "off" state, made reverse motor 52 drive along a backward rotation ground but start forward circuit this moment, increased the inclination angle of separating plate 33 thus.When the thickness of rice layer continues to be increased to L0 from L1, optical diode F is in "open" state and optical diode N still is in "off" state.But inoperative thus forward circuit stops reverse motor 52.When the rice layer thickness surpasses L0, optical diode F and N all are in "open" state, start negater circuit this moment and make motor 52 drive the inclination angle that reduces separating plate 33 thus in opposite direction rotationally.

Figure 14 has illustrated the photoelectric sensor of simulation output type.This sensor comprises a light projector 70 of the parallel rays directive being wanted surveyed area, a collector lens 71 of collecting reflection ray from object to be detected, and photelectric receiver 72 that is arranged on collector lens 71 back ', these elements all are contained in the shell 73.Photelectric receiver 72 ' have a characteristic: the output valve of photelectric receiver (curtage value) is proportional to monitoring distance.For this reason, the photelectric receiver 72 ' output valve on mixed with rice upper and lower limit L0 on the separating plate and the L1 height is arranged to boundary value.If the output valve of photelectric receiver is within boundary value, then the inclination angle of separating plate 33 is suitable, but thereby need not start reverse motor 52.If the output valve of photelectric receiver is outside boundary value, but starting reverse motor 52 inclination angle that increases or reduce separating plate then.

Therefore, the height sensor that is located near the separating plate center can detect at this locational rice layer thickness, to adjust the inclination angle of separating plate.This causes the mixed with rice layer thickness to reduce (referring to Figure 15) gradually from the separating plate center to periphery, makes that brown rice is not easy to be discharged from by band shell rice outlet opening under centrifugal action.

Claims (6)

1. a rotary swinging separater comprises: a vertical rotating shaft that is supported to be used to rotate and have an axis, a device that drives rotating shaft rotationally, above-mentioned rotating shaft comprises the eccentric segment with the rotating shaft axis biasing, be contained on the eccentric segment rotationally and have the separation container of many fan-shaped separating plates, separating plate is arranged to cone-shaped in separation container, be used to the separation container stopping means that prevents that separation container from freely rotating, each eccentric segment has the axis of oneself, its extended line that makes progress becomes a minute angle with rotating shaft axis, make it be higher than on the eccentric segment a bit on intersect with the extended line of rotating shaft axis, separation container is with respect to the horizontal plane for tilting thus, make that they are around making rotary oscillation as the eccentric segment axis of imaginary fulcrum and the intersection point between the rotating shaft axis extended line when rotating shaft rotates.

2. according to a kind of rotary swinging separater of claim 1, wherein, each eccentric segment comprises the upper and lower eccentric part that separation container is installed rotationally.

3. according to a kind of rotary swinging separater of claim 1, wherein, each eccentric segment is by being determined that than the minor diameter eccentric cam with than the major diameter eccentric cam eccentric cam with respect to the horizontal plane is fixed on the straight rotating shaft slightly obliquely, and determined upper and lower eccentric part.

4. a kind of rotary swinging separater according to claim 1 also comprises: an annular weir, it is positioned on the fan-shaped separating plate at each separation container center and has an opening that is used to discharge band shell rice, a gate that is used to open and close the cofferdam opening, and the device of a manipulation gate.According to the sensor output signal that is used for detecting band shell rice of mixed with rice on the separating plate and brown rice, come the device of starting control gate.

5. according to a kind of rotary swinging separater of claim 1, wherein, each separating plate is arranged to adjust the inclination angle of fan-shaped separating plate, and provides a device to adjust the inclination angle of fan-shaped separating plate.

6. according to a kind of rotary swinging separater of claim 5, wherein, provide a height sensor, be used to detect the thickness of mixed with rice layer on the separating plate, when height sensor detects rice layer and with predetermined thickness deviation arranged, handle adjusting device and adjust the inclination angle steepening of separating plate or flatten.

Images