JP4845219B2 - Removal device - Google Patents

Description

  The present invention relates to a detaching apparatus for mashing threshed grains.

  Conventionally, a raw material tank and a hopper are provided above a pair of detachment rolls pressed against each other, and an object to be treated (raw material) stored in the raw material tank is supplied between the pair of detachment rolls by the hopper. A detaching apparatus that performs graining of a grain sandwiched between detaching rolls by rotation is known (see, for example, Patent Document 1).

In such a detaching apparatus, in order to improve the detachment rate, it is necessary to increase the detaching pressure of the pair of detaching rolls.
However, when the depressurization pressure of the pair of derolling rolls is increased, the damage rate of the object to be processed increases, and the pair of demineralizing rolls are easily worn out, and the life of the derolling rolls is shortened. .
Japanese Patent Laid-Open No. 11-319589

  The present invention has been made in view of the above prior art, and an object of the present invention is to provide a detaching apparatus that can improve the detachment rate without increasing the detachment pressure.

  The detachment apparatus according to the present invention is made to solve the above-described problems, and includes a pretreatment means for performing a pretreatment for applying a predetermined impact or pressure to a workpiece, and a workpiece after the pretreatment. A pair of de-rolling rolls for performing a de-pulling process on the processed material, and a thrower mechanism for conveying an object to be processed flowing down from the pretreatment means to the pair of de-rolling rolls, A blower that generates a conveying air capable of conveying an object, and a blower path that guides the conveying air so that an object to be processed flowing down from the pretreatment means is conveyed upward and to the first side by the conveying air; A first discharge path that receives a workpiece to be transported in the transport wind and discharges it between the pair of detachment rolls, and the first discharge path faces the air blowing path. And the second side opposite to the first side The uppermost position between the first receiving port facing toward the lower side and the first discharge port facing toward the first side so as to discharge the object to be processed toward the gap between the pair of detachment rolls. And a vent hole for allowing the conveying air introduced from the first receiving port to escape to the outside of the first discharge path. It is characterized by this.

According to the detaching apparatus having the above-described configuration, the supplied object to be processed is first subjected to a pretreatment to which a predetermined impact or pressure is applied by the pretreatment means, and then from the pretreatment means via the slot mechanism. It is guided to a pair of detachment rolls, and is evacuated by the pair of detachment rolls.
Here, the object to be processed conveyed by the blower mechanism is conveyed upward and to the first side by the conveying air from the blower, passes through the curved first discharge path, and a pair of detachment from the first discharge port. Released between the rolls. At this time, the conveying air from the blower is introduced into the first discharge path from the first receiving port facing downward and the second side opposite to the first side so as to face the air passage, The air is discharged from an air vent hole provided in the vicinity of the uppermost portion located at the uppermost position between the first receiving port and the first discharge port.

As described above, since a predetermined impact or pressure is applied in advance to the object to be processed in the preprocessing unit before the de-rolling process with the pair of de-rolling rolls, (Cuts and tears formed in the rice husk of the object to be processed) are formed. By performing the defluxing process with a pair of deflation rolls in a state where the easy detachment part is formed, the efficiency of the defluxing process is increased and the treatment is performed without increasing the deflation pressure of the pair of defluxing rolls. The quality of the product can be improved, and the life of the detaching roll can be extended.
Furthermore, the pre-processed object is supplied to the pair of derolling rolls in a thin layer state leveled by the slot mechanism. Therefore, the removal capacity of the pair of removal rolls can be improved. At this time, the conveying air is discharged out of the supply path of the object to be processed through the air vent hole. Accordingly, it is possible to effectively prevent the inconvenience that the conveying air acts between the pair of detachment rolls to reduce the detachment processing capability of the pair of detachment rolls.
In addition, the object to be processed can be easily diffused in a direction parallel to the drive shafts of the pair of detachment rolls by wind conveyance by the slot mechanism. Therefore, the object to be processed can be supplied to the pair of detachment rolls in a substantially equal amount throughout the drive shaft direction of the detachment rolls.
In addition, as compared with the configuration in which the object to be processed is supplied from the pretreatment means to the pair of detachment rolls using a flow-down plate, the design position of the pair of detachment rolls with respect to the pretreatment means can be freely determined. The degree can be improved.

  Preferably, the lower mechanism is further communicated with the second receiving port and the second receiving port facing downward and to the second side so as to face the air flow path above the first receiving port. A second discharge path having a second discharge port is provided.

  In this case, impurities such as rice husks produced by the pretreatment by the pretreatment means out of the object to be treated guided by the slot mechanism from the second receiving port located above the first receiving port of the first discharge path. 2 is sent to the discharge path, and discharged from the second discharge port to the outside of the supply path of the workpiece.

  Thereby, it is possible to wind-select impurities generated by the pretreatment before the defusing treatment, and effectively prevent the efficiency of the defusing treatment by the defusing roll from being deteriorated by the impurities generated by the pretreatment. Can do.

  More preferably, in the slotter mechanism, an object to be processed flowing down from the pretreatment means falls downward while allowing the conveyance air to pass between the air blowing path and the first and second discharge paths. A receiving net provided with a slit region to prevent this, and the receiving net is inclined so as to be substantially orthogonal to the flow of the conveying air from the air blowing path to the first and second discharge paths. .

In this case, the conveying air from the blower is guided from the air passage to the first and second discharge paths through the receiving net provided with the slit region. The receiving net is inclined so as to be substantially orthogonal to the flow of the conveying air.
Therefore, it is possible to prevent the workpiece after the pretreatment from being unintentionally released from the supply path of the workpiece by the receiving network.
Furthermore, by placing the receiving net in an inclined manner, the processed material having a high specific gravity including the grain in which the easy detachment part has been formed or the unde-pulverized grain among the processed material after the pretreatment, Impurities having a low specific gravity such as rice husks are blown up by the sorting wind in the upper region of the receiving net while being blown down by the conveying wind while flowing down the receiving net. Therefore, the processing object including the grain is sent to the first release path located below, and impurities such as rice husks are sent to the second release path located above, which is effective. Wind sorting action can be obtained.

  More preferably, the air flow direction in which the air flow from the blower is divided up and down so that the air volume on the lower side is larger than the air volume on the upper side at the downstream end in the air flow direction of the air flow in the air flow path. A plate is provided.

In this case, the conveying air flowing below the wind direction plate provided at the downstream end portion of the conveying path in the conveying air flow direction has a larger air volume than the conveying air flowing above the air direction plate.
Therefore, a large amount of conveying air can be supplied to the first discharge path that conveys the grains having a large specific gravity, thereby efficiently conveying the object to be processed to the pair of detaching rolls. Can do.

  Preferably, the slot mechanism has a cooling path for guiding the conveying air discharged from the air vent hole to one or both of the pair of removing rolls as cooling air.

In this case, after the conveying air in the first discharge path is discharged from the air vent hole, the conveying air is guided to one or both of the pair of detaching rolls via the cooling path, and one of the pair of detaching rolls. Or cool both.
Therefore, the wear of the pair of detachment rolls can be reduced by effectively using the conveying air.

  Preferably, the pretreatment means is a pair of first derolling rolls that performs a primary defluxing process on the object to be treated, and the pair of degumming rolls is applied to the object to be treated that has been subjected to the primary defluxing process. On the other hand, it is a pair of second de-rolling rolls that de-pour.

In this case, the supplied processed material is first subjected to primary de-pulling treatment with a pair of first de-rolling rolls, and then from the pair of first de-rolling rolls to the first de-rolling rolls via a flow-down plate. It is guided to a pair of second de-rolling rolls arranged below, and de-depletion processing (secondary de-deposition processing) is performed again with the pair of second de-rolling rolls.
In this way, the defusing process is performed in two stages using the pair of first and second defusing rolls. Therefore, it is possible to increase the efficiency of the defusing process and to improve the quality of the object to be processed without increasing the detaching pressure of each of the pair of first and second detaching rolls. The life of the roll can be extended.

According to the detaching apparatus according to the present invention, since a predetermined impact or pressure is applied in advance to the object to be processed in the preprocessing means before the defusing process with the pair of detaching rolls, the object to be processed An easy removal part (a cut, a tear, or the like formed in the rice husk of the object to be processed) is formed. By performing the defluxing process with a pair of deflation rolls in a state where the easy detachment part is formed, the efficiency of the defluxing process is increased and the treatment is performed without increasing the deflation pressure of the pair of defluxing rolls. The quality of the product can be improved, and the life of the detaching roll can be extended.
Furthermore, the pre-processed object is supplied to the pair of derolling rolls in a thin layer state leveled by the slot mechanism. Therefore, the removal capacity of the pair of removal rolls can be improved. At this time, the conveying air is discharged out of the supply path of the object to be processed through the air vent hole. Accordingly, it is possible to effectively prevent the inconvenience that the conveying air acts between the pair of detachment rolls to reduce the detachment processing capability of the pair of detachment rolls.
In addition, the object to be processed can be easily diffused in a direction parallel to the drive shafts of the pair of detachment rolls by wind conveyance by the slot mechanism. Therefore, the object to be processed can be supplied to the pair of detachment rolls in a substantially equal amount throughout the drive shaft direction of the detachment rolls.
In addition, as compared with the configuration in which the object to be processed is supplied from the pretreatment means to the pair of detachment rolls using a flow-down plate, the design position of the pair of detachment rolls with respect to the pretreatment means can be freely determined. The degree can be improved.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of a detaching apparatus according to the present invention will be described with reference to the accompanying drawings. 1 and 2 are a front sectional view and a partial rear sectional view of a detaching apparatus 1 according to an embodiment of the present invention, and FIG. 3 is an upper perspective view of the detaching unit 5 in the detaching apparatus 1 of FIG. FIG. In FIG. 3, a first machine casing 2a and a second machine casing 2b described later are not shown.
As shown in FIG. 1, a dehulling apparatus 1 according to an embodiment of the present invention includes a dehulling unit 5 and a raw material tank 4 that is disposed above the dehulling unit 5 and stores an object to be treated such as grain. And the material to be processed supplied from the raw material tank 4 is subjected to a hulling process by the detaching unit 5.
The detaching apparatus 1 includes a pair of first detaching rolls 201 that are pretreatment means for applying a predetermined pressure to an object to be processed, and a pair of first detaching rolls 201 disposed below the pair of first detaching rolls 201. A second de-rolling roll (corresponding to a pair of de-rolling rolls) 202.

As shown in FIG. 1, the detaching apparatus 1 of the present embodiment has an upper and lower opening as a detaching case 10 provided with a receiving port 31 for receiving an object to be processed supplied from the raw material tank 4 at the upper part. A first machine casing 2a that accommodates the pair of first detachment rolls 201, a second machine casing 2b that opens at the top and bottom and accommodates the pair of second detachment rolls 202, and the first An intermediate machine frame provided to communicate with the upper machine frame 3a provided in the upper opening 2a1 of the machine frame 2a, the lower opening 2a2 of the first machine frame 2a, and the upper opening 2b1 of the second machine frame 2b. 3b. The second machine casing 2b is disposed on the first side (first side) in a direction perpendicular to the drive shafts 211 and 231 of the pair of first release rolls 201 with respect to the first machine casing 2a. Has been.
The upper machine casing 3a is provided inside the upper machine casing 3a and below the raw material tank 4, and is used to introduce a workpiece into the pair of first derolling rolls 201 in the first machine casing 2a. The inlet 31, the shutter mechanism 50 that selectively opens or blocks the movement path of the object to be processed from the raw material tank 4 to the pair of first deflation rolls 201, and the upper machine casing 3 a are supported. A guide plate 34 is provided for aligning the workpieces introduced from the receiving port 31.

The shutter mechanism 50 includes an open / close valve 32 provided at the receiving port 31 and an open / close drive unit 33 provided outside the upper machine casing 3a to drive the open / close valve 32 to open and close.
In the present embodiment, an electric motor is used as a drive source for the opening / closing drive unit 33, and the shaft that operatively connects the opening / closing drive unit 33 and the opening / closing valve 32 is moved horizontally by rotating the motor shaft, thereby moving the opening / closing valve 31 horizontally. By doing so, the open state where the receiving port 31 is opened and the blocked state where the receiving port 31 is blocked are switched.
The shutter mechanism 50 may be provided in the removal unit 5 as in the present embodiment, but may be provided in the raw material tank 4.

  Further, the upper machine casing 3 a is provided with a fixed amount supply mechanism 30 disposed immediately below the receiving port 31 below the shutter mechanism 50. The fixed amount supply mechanism 30 is supported inside the upper machine casing 3 and below the guide plate 34 so as to be rotatable in a direction along the inclination of the guide plate 34, and is attached to the pair of first release rolls 201. An impeller-like feeding roll 35 for quantitatively introducing the processed material, and the upper end of the guide plate 34 can be rotated around a rotation fulcrum 37 with the feeding roll 35 sandwiched between the feeding rolls 35 and facing each other. An adjustment plate 36 that is supported and is capable of adjusting the gap with the retraction roll 35 by being rotated about the rotation fulcrum 37 is provided.

  In addition, the pair of first unrolling rolls 201 includes a fixed roll 221 that is rotatably supported around the fixed shaft 211 by the fixed shaft 211 being pivotally supported by the first machine casing 2a, A substantially parallel movable shaft 231 is pivotally supported by the first machine casing 2a, so that the movable shaft 231 is rotatably supported around the movable shaft 231, and the distance between the movable shaft 231 and the fixed shaft 211 is moved by moving the movable shaft 231. And a movable roll 241 that can adjust the angle.

In the present embodiment, as shown in FIG. 2, the first machine casing 2a is provided with a rotating shaft 251 supported in parallel to the movable shaft 231.
The movable roll 241 is a movable member 261 that supports the movable shaft 231, and the rotating shaft 251 is pivotally supported on one end 261 a extending from the movable shaft 231 in the radial direction of the movable roll 241. The movable member 261 and the one end portion 261a of the movable member 261 are operatively connected to the other end portion 261b extending in the radial direction opposite to the movable roll 241 with respect to the movable shaft 231. And an urging member 271 such as an air cylinder that urges the movable member 261 around the rotation shaft 251 in a direction close to the fixed roll 231.
A control motor 131 (see FIG. 4), which will be described later, generates a rotational driving force against the urging force in the direction close to the fixed roll 231 around the rotation shaft 251 by the urging member 271. The drive shaft is operatively connected, and the urging force is adjusted (braking) by adjusting the rotational driving force of the control motor 131.

  The fixed roll 221 and the movable roll 241 are wound around the drive source by a drive source (for example, an electric motor 111 (see FIG. 4) described later) provided outside the first machine casing 2a. By being transmitted through a drive belt (not shown), the belts are rotated at different peripheral speeds in opposite directions. The feed roll 35 is also rotated in the direction of introducing the object to be processed into the pair of first derolling rolls 201 by the driving force from the same driving source via the driving belt.

Similarly, the pair of second unrolling rolls 202 includes a fixed roll 222 supported rotatably around the fixed shaft 212 and a fixed shaft 212 by the fixed shaft 212 being pivotally supported by the second machine casing 2b. Is supported by the second machine casing 2b so as to be rotatable around the movable shaft 232, and the movable shaft 232 is moved between the movable shaft 232 and the fixed shaft 212. And a movable roll 242 capable of adjusting the distance (pressure).
In addition, the drive shafts 212 and 232 in the direction of the pair of second unrolling rolls 202 in this embodiment have the lengths in the directions of the drive shafts 211 and 231 of the pair of first unrolling rolls 201 as shown in FIG. It is configured to be longer than that.

In the present embodiment, as shown in FIG. 2, the second machine casing 2 b is provided with a rotating shaft 252 supported in parallel with the movable shaft 232.
The movable roll 242 is a movable member 262 that pivotally supports the movable shaft 232, and the rotating shaft 252 is pivotally supported at one end 262 a extending from the movable shaft 232 in the radial direction of the movable roll 242. The movable member 262 and the one end portion 262a of the movable member 262 are operatively connected to the other end portion 262b extending in the radial direction opposite to the movable roll 242 with respect to the movable shaft 232. And an urging member 272 such as an air cylinder that urges the movable member 262 around the rotation shaft 252 in a direction close to the fixed roll 222.

The fixed roll 222 and the movable roll 242 are a driving belt (not shown) in which a driving force of a driving source (not shown) such as an electric motor provided outside the second machine casing 2b is wound around the driving source. Are transmitted at different peripheral speeds in opposite directions.
The pair of second derolling rolls 202 may share a driving source with the first derolling roll 201.

As shown in FIG. 1, the intermediate machine frame 3 b is provided with a slot mechanism 60 that conveys an object to be processed flowing down from the pair of first detachment rolls 201 to the pair of second detachment rolls 202. Yes. The blower mechanism 60 includes a blower 61 such as a pressure-feed fan that generates conveyance air capable of conveying an object to be processed, and an object to be processed that flows down from the pair of first release rolls 201 upward and first by the conveyance air. A blower path 62 that guides the conveying air so as to be conveyed to the side (here, the movable roll 241 side of the pair of first unrolling rolls 201), and an object to be conveyed that is carried on the conveying air. A first discharge path 63 for receiving an object and discharging it between the pair of second derolling rolls 202;
A main air selection mechanism that can be disposed on the downstream side of the pair of second derolling rolls 202 instead of generating a dedicated conveying air in the air passage 62 by directly attaching the air blower 61 to the air passage 62. By using a fan (not shown) as the blower 61, it is possible to generate a conveying wind in the blower passage 62.

The first discharge path 63 is a second side (here, a pair of first depressing rolls 201) that is below the pair of first release rolls 201 and opposite to the first side so as to face the air blowing path 62. The first discharge port 63a facing the fixed roll 221 of the detaching roll 201) and the first release facing downward so as to discharge the object to be processed between the pair of second detaching rolls 202. The uppermost part 63c is located at the uppermost position between the outlet 63b and a curved shape having the uppermost part 63c. The conveying air introduced from the first receiving port 63a is placed near the uppermost part 63c in the first discharge path. An air vent hole 65 for escaping 63 outward is provided.
In addition, the drive shaft direction length of the pair of first and second release rolls 201 and 202 in the air blowing path 62 and the first discharge path 63 is the pair of second release rolls as shown in FIG. 202.

Here, the flow of the hulling work in the removal apparatus 1 having the above configuration will be described.
First, the open / close valve 32 is opened by the open / close drive unit 33 in a state where the drive unit is operated to rotate the fixed rolls 221 and 222, the movable rolls 241 and 242 and the retraction roll 35, thereby being stored in the raw material tank 4. The object to be processed falls downward from the receiving port 31. The dropped object to be processed slides down a flow path formed by the guide plate 34 and the adjustment plate 36 located below, and is supplied to the feed roll 35.
The workpieces supplied to the feeding roll 35 are sequentially fed to the first machine frame through the upper opening 2a1 according to the size of the gap between the feeding roll 35 and the adjusting plate 36 by the rotation of the feeding roll 35. It supplies to a pair of 1st unwinding roll 201 in 2a. When changing the supply amount to the pair of first unrolling rolls 201, the adjustment plate 36 is rotated around the rotation fulcrum 37 using an adjustment screw (not shown), thereby the inclination angle of the adjustment plate 36. Is changed to change the size of the gap between the feeding roll 35 and the adjusting plate 36.

  The object to be processed supplied from the fixed amount supply mechanism 30 is supplied to the gap between the pair of first release rolls 201. The supplied workpiece is subjected to a hulling process (primary detachment process) in the gap between the pair of first detachment rolls 201 and discharged from the lower opening 2a2 of the first machine casing 2a.

Further, the object to be treated that has been subjected to the primary detachment process by the pair of first detachment rolls 201 is supplied from the lower opening 2a2 of the first machine casing 2a to the intermediate machine casing 3b, and the slot located below the lower opening 2a2. The mechanism 60 is blown upward and to the first side by the conveying air sent from the blower 61 through the blower passage 62, passes through the curved first discharge path 63 from the first receiving port 63 a, and passes through the first discharge passage 63. The first discharge port 63b communicated with the upper opening 2b1 of the two machine frame 2b is supplied to the pressure contact region between the pair of second release rolls 202 below the first discharge port 63b.
The first discharge path 63 may be arranged so that the first discharge port 63b faces downward and the first side. In this case, the pair of second release rolls 202 may be inclined (the fixed shaft 212 is positioned on the upper side in the vertical direction with respect to the movable shaft 232).

  At this time, the conveying air from the blower 61 is introduced into the first discharge path 63 from the first receiving port 63a, and is then positioned at the uppermost position between the first receiving port 63a and the first discharge port 63b. It is discharged from an air vent hole 65 provided near the uppermost portion 63c.

  The object to be processed supplied between the second detachment rolls 202 is subjected to a hulling process (secondary detachment process) in a pressure contact region between the pair of second detachment rolls 202, and below the second machine casing 2 b. It is discharged from the opening 2b2. In the lower opening 2b2, a wind sorting device or the like (not shown) is arranged, and the grain and rice husk crushed are sorted.

In this way, the defusing process is performed in two stages using the pair of first and second defusing rolls 201 and 202. That is, a predetermined pressure is applied to the object to be processed in the pair of first de-rolling rolls 201 before the final de-rolling process (secondary de-developing process) is performed by the pair of second de-rolling rolls 202. Pre-processing (primary removal process) is performed. Therefore, it is possible to improve the efficiency of the defogging process and improve the quality of the object to be processed without increasing the defluxing pressure of each of the pair of first and second defluxing rolls 201, 202. In addition, the life of the derolling roll can be extended.
Furthermore, the processed object after the primary detachment process is supplied to the pair of second detachment rolls 202 in a thin layer state leveled by the slot mechanism 60. Accordingly, it is possible to improve the detachment processing capability by the pair of second detachment rolls 202. At this time, since the conveying air is discharged out of the supply path of the object to be processed through the air vent hole 65, the conveying air acts between the pair of second release rolls 202, It is possible to effectively prevent the inconvenience of reducing the removal capacity of the second removal roll 202.
Further, the object to be processed can be easily diffused in the direction parallel to the drive shafts of the pair of second release rolls 202 by the wind conveyance by the slot mechanism 60. Therefore, the object to be processed can be supplied to the pair of second detachment rolls 202 in substantially the same amount in the entire drive shaft direction of the second detachment rolls 202.
In addition, as compared with a configuration in which an object to be processed is supplied from the pair of first detachment rolls 201 to the pair of second detachment rolls 202 using a flow-down plate, the pair of first detachment rolls 201 is more With respect to the installation position of the pair of second unrolling rolls 202, the degree of design freedom can be improved.

Here, the deflation rate in the first deflation process (the deflation rate of the pair of first deflation rolls 201) can be set to a predetermined ratio. The removal rate is set to 50%.
In this case, the pair of second de-rolling rolls 202 de-processes the remaining 50% of the objects to be processed. At this time, at least a part of the remaining 50% of the objects to be processed includes the above-mentioned The first removal roll 201 forms an easy removal portion (a cut or tear formed in the rice husk of the object to be processed).
Therefore, it is possible to improve the efficiency of the defusing process and improve the quality of the object to be processed without increasing the defusing pressure of the second defusing roll 202.

  In the present embodiment, the position of the pair of first release rolls 201 is controlled so that a gap provided between them is constant, and the pair of second release rolls 202 press each other with a predetermined pressure. Is done.

In this case, the position of the pair of first removing rolls 201 is controlled so that the gap between the fixed roll 221 and the movable roll 241 is constant. Therefore, even if the pair of first de-rolling rolls 201 is worn, the primary de-rolling process and the easy de-bonding portion can be performed at a predetermined de-pulling rate. Thereby, irrespective of the presence or absence of wear of the pair of first detachment rolls 201, the undepleted amount of the object to be treated when supplied to the pair of second detachment rolls 202 can be made substantially constant. it can.
On the other hand, the pair of second release rolls 202 are pressed against each other with a predetermined pressure. Therefore, the removal capacity is kept constant regardless of the presence or absence of wear. Thereby, the final detachment rate can be maintained at a high level regardless of whether the second detachment roll 202 is worn or not.

In FIG. 4, the schematic block diagram regarding the position control of a pair of 1st detachment roll 201 in the detachment apparatus 1 of FIG. 1 is shown.
In the present embodiment, the position control of the pair of first release rolls 201 is performed based on the load current value of a drive source (here, the three-phase AC electric motor 111) that rotationally drives the pair of first release rolls 201. Based on.

Specifically, as shown in FIG. 4, the detaching apparatus 1 includes a current sensor 121 that detects a current value of the electric motor 111 that rotationally drives the pair of first detaching rolls 201, and the current sensor 121. The control unit 101 transmits a control signal to the control motor 131 in order to bring the movable roll 242 into and out of contact with the fixed roll 222 based on the detected current value. Further, the removal device 1 has a valve opening sensor 141 that detects the valve opening of the on-off valve 32 of the shutter mechanism 50 and a voltage sensor 151 that detects the drive voltage of the electric motor 111. .
The current sensor 121 is, for example, a current meter that detects a load current of the three-phase AC electric motor 111. The valve opening sensor 141 is, for example, an encoder that detects a rotation angle of the servo motor when a servo motor is used as the opening / closing drive unit 33 of the opening / closing valve 32. Alternatively, the opening degree of the on-off valve 32 may be detected by detecting the rotation angle of the stepping motor using a stepping motor as the on-off driving unit 33.

  In this case, the current sensor 121 detects a load current of the electric motor 111 that rotationally drives the pair of first release rolls 201. Here, the detected amount of change in the load current is proportional to the amount of change in the rotational load of the pair of first release rolls 201. That is, when the distance between the rolls increases due to wear, the rotational load decreases, and the load current value detected by the current sensor 121 also decreases. Based on the load current value, a control signal is transmitted from the control unit 101 to the control motor 131, and the control motor 131 is set so that the load current value detected by the current sensor 121 is constant at a predetermined value. The rotational driving force (braking force) is controlled.

Here, the power supply voltage of the electric motor 111 is set to a predetermined constant voltage (for example, rated 200 V), but in actuality, it may vary within a predetermined range (for example, ± 10%) based on the rated voltage. Are known. If the power supply voltage value of the electric motor 111 decreases, the load current value detected by the current sensor 121 decreases even if the distance between rolls is constant, and conversely, if the power supply voltage value increases, the current The load current value detected by the sensor 121 increases even if the distance between rolls is constant. In other words, even if the same load current value is detected, if the power supply voltage value fluctuates, the removal rate will change. Therefore, only the load current value detected by the current sensor 121 makes the distance between rolls constant. I can't hold it.
Therefore, in the present embodiment, the control unit 101 determines the control amount of the control motor 131 based on the load current value detected by the current sensor 121 based on the power supply voltage value of the electric motor 111 detected by the voltage sensor 151. Thus, it is possible to control to maintain an appropriate distance between rolls without being influenced by the power supply voltage value of the electric motor 111.

  In addition, when the amount of the object to be processed supplied to the pair of first release rolls 201 fluctuates, the load current value detected by the current sensor 121 fluctuates accordingly. That is, when the amount of workpieces to be supplied decreases, the load current value detected by the current sensor 121 decreases even if the distance between rolls is constant, and conversely, the amount of workpieces to be supplied. Increases, the load current value detected by the current sensor 121 increases even if the distance between the rolls is constant. In other words, even if the same load current value is detected, if the supply amount of the object to be processed is changed, the removal rate will change. Therefore, only the load current value detected by the current sensor 121 will cause the distance between rolls. Cannot be controlled to be kept constant.

  Therefore, in the present embodiment, in the control unit 101, the valve opening degree of the shutter mechanism 50 detected by the valve opening sensor 151 based on the control amount of the control motor 131 based on the load current value detected by the current sensor 121. To be processed to be supplied to the pair of first derolling rolls 201 by correcting based on the degree (that is, the amount of the object to be processed per unit time supplied to the pair of first derolling rolls 201) Control can be performed so as to maintain an appropriate distance between rolls regardless of the amount of the object.

On the other hand, the pressure control of the pair of second release rolls 202 in the present embodiment is performed by a pressure sensor (not shown) or the like in the biasing member 272 that biases the movable roll 242 of the pair of second release rolls 202. Thus, the applied pressure is controlled to be constant.
Thereby, the pressure which the fixed roll 222 and the movable roll 242 press against each other can be made constant.

Next, the slot mechanism 60 of this embodiment will be described in more detail.
In the present embodiment, as shown in FIG. 1, the first discharge path 63 is reduced in diameter as it goes from the first receiving port 63a to the first discharging port 63b.
Thereby, the conveyance speed of the to-be-processed object wind-carrying to the said 2nd unloading roll 202 via the said 1st discharge | release path | route 63 can be raised. Therefore, the removal rate can be improved.
In addition, the layer thickness of the object to be processed when supplied to the pair of second detachment rolls 202 can be further reduced, and this can also improve the detachment rate.

  Further, as shown in FIGS. 1 to 3, the lower mechanism 60 includes a second receiving port that is directed downward and second side so as to face the air passage 62 above the first receiving port 63 a. 64a and a second discharge path 64 having a second discharge port 64b communicating with the second receiving port 64a. In the present embodiment, the second discharge port 54b is disposed outward from the second machine casing 2b.

  In this case, impurities such as rice husks produced by the primary defusing process by the pair of first defusing rolls 201 out of the object to be processed guided by the slot mechanism 60 from the first receiving port 63 a of the first discharge path 63. It is sent from the second receiving port 64a located above to the second discharge path 64, and discharged from the second discharge port 64b to the outside of the supply path of the object to be processed.

  Thereby, the impurities generated by the primary de-rolling process can be wind-screened before the secondary de-pulping process, and the second de-rolling process by the second de-rolling roll 202 is performed by the impurities generated by the primary de-pulping process. It is possible to effectively prevent the efficiency from deteriorating.

  Further, the blower mechanism 60 flows down from the pair of first release rolls 201 while allowing the conveying air to pass between the blower passage 61 and the first and second discharge passages 63 and 64. A receiving net 66 provided with a slit 67 for preventing the object to be processed from dropping downward is provided, and the receiving net 66 is transferred from the air blowing path 61 to the first and second discharge paths 63 and 64. It is inclined and arranged so as to be substantially orthogonal to the wind flow.

In this case, the conveying air from the blower 61 is guided from the blower passage 62 to the first and second discharge passages 63 and 64 through the receiving net 66 provided with the slit region 66s. The receiving net 66 is inclined so as to be substantially orthogonal to the flow of the conveying air.
Therefore, the receiving net 66 can prevent the object to be processed after the primary detachment process from being unintentionally released outside the supply path of the object to be processed.
Furthermore, by placing the receiving net 66 in an inclined manner, the material to be processed having a high specific gravity including the defatted grain and the undepleted grain among the processed substances after the primary defluxing treatment, Impurities having a low specific gravity such as rice husks are blown up by the sorting wind in the upper region of the receiving net while being blown down by the conveying wind while flowing down the receiving net 66. Therefore, the object to be processed including grains is sent to the first release path 63 located below, and impurities such as rice husks are sent to the second release path 64 located above, Wind sorting action can be obtained effectively.

  As shown in FIGS. 1 and 2, the air flow path 62 in the present embodiment has a lower air volume at the downstream end in the conveying air flow direction of the air flow path 62 than the upper air volume. A wind direction plate 67 is provided to divide the conveying air from the blower 61 up and down. More specifically, in the upper conveyance path 62a located on the upper side of the wind direction plate 67, the upper receiving port 62a1 and the upper discharge port 62a2 have substantially the same size. In the lower conveyance path 62b located on the lower side, the lower receiving port 62b1 is opened larger than the lower discharge port 62b2 and the upper receiving port 62a1.

In this case, the conveyance air flowing below the wind direction plate 67 provided at the downstream end portion of the conveyance path 62 in the conveyance air flow direction has a larger air volume than the conveyance air flowing above the wind direction plate 67. Moreover, the conveying wind flowing below the wind direction plate 67 is compressed by reaching from the lower receiving port 62b1 to the lower discharging port 62b2 having a smaller opening.
Accordingly, it is possible to supply a large amount of conveying air to the first discharge path for conveying grains having a large specific gravity, thereby efficiently conveying the material to be processed to the pair of second derolling rolls. It can be carried out.

Here, the slit region 66s of the receiving net 66 in this embodiment will be described in more detail. FIG. 5 shows a top view of the receiving net 66 in the present embodiment. 6 is a cross-sectional view taken along the line VI-VI in FIG. 5, and FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG.
As shown in FIGS. 5 to 7, the slit area 66 s of the receiving net 66 in the present embodiment includes a plurality of slit holes 68 and a cut and raised portion adjacent to the upstream side of the workpiece hole dropping direction of the slit holes 68. 69,
The cut-and-raised portion 69 is spaced from the inclined plane toward the upper surface side of the receiving net 66 as it goes to the downstream side in the workpiece falling direction with respect to the inclined plane where the receiving net 66 is located.

In this case, the workpiece guided to the slit region 66 s of the receiving net 66 has the shape of the cut and raised portion 69 at the cut and raised portion 69 adjacent to the upstream side of the plurality of slit holes 68 in the workpiece fall direction. Accordingly, it is separated from the inclined plane toward the upper surface side of the receiving net 66 as it goes downstream in the workpiece dropping direction with respect to the inclined plane where the receiving net 66 is located (floating with respect to the inclined plane). Be guided to. In this state, the conveyance air is removed from the plurality of slit holes 68 on the downstream side of the cut-and-raised part 69 in the workpiece falling direction, so that the workpiece is blown and the wind is selected. .
Therefore, by providing the cut-and-raised portion 69, it is possible to suppress as much as possible the resistance when an object to be processed having a large specific gravity including grain flows down the receiving net 66. Accordingly, the object to be processed can be effectively sent to the first discharge path 63 positioned below.
In addition, although the said receiving net | network 66 was set as the inclination arrangement | positioning in this embodiment, it can be installed also in various attitude | positions other than the said inclination arrangement | positioning. For example, the receiving net 66 may be installed in a substantially horizontal posture.

The slot mechanism 60 of the present embodiment may have a cooling path 70 that guides the conveying air discharged from the air vent hole 65 to one or both of the pair of second deflation rolls 202 as cooling air. Good.
FIG. 8 shows a front cross-sectional view of a state in which a cooling path 70 is added in the detaching apparatus 1 of FIG.

  In the present embodiment, as shown in FIG. 8, the cooling path 70 is a virtual vertical passing through the fixed shaft 212 of the fixed roll 222 driven at a higher speed than the movable roll 242 of the pair of second release rolls 202. The cooling air is guided to the fixed roll 222 on the outer side from the surface V1. Specifically, the cooling path 70 includes a receiving port 70a that covers the air vent hole 65 and a discharge port 70b that is provided on the side surface of the second machine casing 2b that is on the outer side of the virtual vertical plane V1. Have.

In this case, after the conveyance air in the first discharge path 63 is discharged from the air vent hole 65, the conveyance air is guided to the fixed roll 222 of the pair of second release rolls 202 through the cooling path 70, and the fixing is performed. The roll 222 is cooled.
Therefore, the wear of the pair of second release rolls 202 can be reduced by effectively using the conveying air.
Note that the cooling path 70 may be configured to guide the cooling air to both the pair of second removing rolls 202. In this case, cooling air is supplied to both of the pair of second release rolls 202 on the outer side from the pair of virtual vertical surfaces V1 and V2 that pass through the drive shafts 212 and 232 of the pair of second release rolls 202, respectively. It is preferable to guide.

  As mentioned above, although embodiment which concerns on this invention was described, this invention is not limited to the said embodiment, A various improvement, change, and correction are possible within the range which does not deviate from the meaning.

  For example, in the above-described embodiment, the example in which the pair of first derolling rolls 201 is applied as the pretreatment means has been described. However, the present invention is not limited to this, and the first machine casing 2a is operatively connected to the drive source. By providing a stirring mechanism having a rotating shaft extending substantially vertically in the state and a stirring rod connected to the rotating shaft, a configuration in which a predetermined impact is applied, or a direction substantially perpendicular to the dropping direction of the workpiece By providing a pressure mechanism that moves in parallel, a configuration that applies a predetermined pressure can be applied.

FIG. 1 is a front sectional view of a detaching apparatus according to an embodiment of the present invention. FIG. 2 is a partial cross-sectional view of the back surface of the detachment apparatus according to the embodiment of the present invention. FIG. 3 is an upper perspective view of the desorption unit in the desorption apparatus of FIG. 1. FIG. 4 is a schematic configuration diagram relating to position control of a pair of first detachment rolls in the detachment apparatus of FIG. 1. FIG. 5 is a top view of the upstream downstream plate in the present embodiment. 6 is a cross-sectional view taken along the line VI-VI in FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. FIG. 8 is a front cross-sectional view showing a state in which a cooling path is added in the removing apparatus of FIG.

Explanation of symbols

60 Slower mechanism 61 Blower 62 Blower path 63 First discharge path 63a First reception port 63b First discharge port 63c Top 64 Second discharge path 64a Second reception port 64b Second discharge port 65 Ventilation hole 66 Receiving net 66s Slit Area 67 Wind direction plate 70 Cooling path 101 Control unit 201 A pair of first release rolls (pretreatment means)
202 A pair of second derolling rolls (a pair of derolling rolls)

Claims (6)

From pre-processing means for performing pre-processing for applying a predetermined impact or pressure to the object to be processed, a pair of de-rolling rolls for performing de-processing for the object to be processed after the pre-processing, A lower mechanism that conveys the workpiece to flow down to the pair of detachment rolls,
The blower mechanism generates a conveying air capable of conveying an object to be processed, and the conveying air so that the object to be processed flowing down from the pretreatment means is conveyed upward and to the first side by the conveying air. And a first discharge path that receives a workpiece to be transported on the transport wind and discharges it between the pair of detachment rolls,
The first discharge path has a first receiving port facing the second side opposite to the first side and the first receiving port and the object to be processed so as to face the air blowing path. It has a curved shape having a top portion located at the uppermost position between the lower side or the lower side and the first discharge port facing the first side so as to discharge toward the middle,
In the vicinity of the uppermost portion, a degassing apparatus is provided with an air vent hole for escaping the conveying air introduced from the first receiving port to the outside of the first discharge path.   The slot mechanism further includes a second receiving port that is communicated with the second receiving port and the second receiving port that faces downward and faces the second side above the first receiving port. The deemission device according to claim 1, further comprising a second discharge path having an outlet. The slot mechanism prevents the workpiece flowing down from the pretreatment means from dropping downward while allowing the conveyance air to pass between the air blowing path and the first and second discharge paths. It has a receiving net provided with a slit area,
3. The detaching apparatus according to claim 2, wherein the receiving net is inclined and arranged so as to be substantially orthogonal to the flow of the conveying wind from the blower path to the first and second discharge paths.   The air flow path is provided with a wind direction plate that divides the air flow from the blower up and down so that the air volume on the lower side is larger than the air volume on the upper side at the downstream end in the air flow direction of the air flow. 4. The detaching apparatus according to claim 2, wherein the detaching apparatus is provided.   The said slot mechanism has a cooling path | route which guides the conveyance wind discharge | released from the said air vent hole to one or both of said pair of detachment rolls as a cooling wind, The Claim 1 to 4 characterized by the above-mentioned. Any of the removal apparatus.   The pretreatment means is a pair of first defluxing rolls that performs a primary defluxing process on the workpiece, and the pair of defluxing rolls is removed from the workpiece after the primary defluxing treatment. 6. A detaching apparatus according to any one of claims 1 to 5, wherein the detaching apparatus is a pair of second detaching rolls.

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