JP4863402B2 - Huller - Google Patents

Description

  The present invention comprises an upstream supply plate whose inclination angle can be changed so as to adjust the amount of raw material drooping down in cooperation with a lead roller, and a direct or indirect drop from the upstream supply plate The present invention relates to a hulling machine provided with a downstream supply plate that naturally drops the raw material rice cake to be dropped toward the crimping points of the first and second rolls.

  A fixed shaft that is driven to rotate about an axis by rotational power from a main electric motor; a movable shaft that is driven to rotate about an axis by rotational power from the main electric motor in a state substantially parallel to the fixed shaft; and the fixed shaft A first roll fixed to the movable shaft, a second roll fixed to the movable shaft, and a pushing mechanism for pushing the movable shaft so that the second roll is pressed against the first roll with a predetermined pressure. A supply tank disposed above the first and second rolls, an upstream supply plate that receives the raw material fountain falling from the lower end opening of the supply tank and allows it to fall naturally downward, and directly from the upstream supply plate Alternatively, the downstream side supply plate that naturally drops the indirectly dropped raw material bowl toward the crimping point of the first and second rolls, and the upstream side supply plate cooperates with the upstream side supply plate to the downstream side. Raw material sent to supply plate In a huller equipped with a lead roller for adjusting the amount of dredging, the inclination angle of the upstream supply plate can be changed so that the gap width between the upstream supply plate and the lead roller can be adjusted. Has been proposed (see Patent Document 1 below).

  By making it possible to change the inclination angle of the upstream supply plate, the amount of raw material soot supplied to the crimping points of the first and second rolls is within the range of the amount that can be processed by the first and second rolls. It becomes possible to adjust.

However, in the conventional hulling machine, the lead roller is rotationally driven at a constant speed by the rotational power from the main electric motor.
That is, if the gap width between the upstream supply plate and the lead roller is reduced, the raw material cake passing through the gap is easily scattered by the lead roller, and is supplied to the crimping points of the first and second rolls. It becomes difficult to stabilize the posture of the raw material rice cake when it is done, and the hulling efficiency by the first and second rolls deteriorates.
On the other hand, when the gap width between the upstream supply plate and the lead roller is increased, the feed action by the lead roller is insufficient with respect to the amount of raw material soot passing through the gap. As the thickness increases, the hulling efficiency by the first and second rolls deteriorates.
JP-A-9-122510

  The present invention has been made in view of the prior art, and an upstream supply plate whose inclination angle can be changed so as to adjust the amount of raw material drooping down in cooperation with the lead roller, In the hulling machine provided with the downstream supply plate that naturally drops the raw material dropping directly or indirectly from the upstream supply plate toward the crimping points of the first and second rolls, the inclination of the upstream supply plate An object of the present invention is to provide a hulling machine capable of maintaining good hulling efficiency by the first and second rolls even when the angle is changed.

  A hulling machine according to the present invention includes a fixed shaft that is driven to rotate about an axis by rotational power from a main electric motor, and is driven to rotate about an axis by rotational power from the main electric motor in a state substantially parallel to the fixed shaft. The movable shaft, the first roll fixed to the fixed shaft, the second roll fixed to the movable shaft, and the movable so that the second roll is pressed against the first roll with a predetermined pressure. A pushing mechanism that pushes the shaft; a supply tank disposed above the first and second rolls; and an upstream supply plate that receives the raw material dropping from the lower end opening of the supply tank and naturally drops it downward And a downstream supply plate that naturally drops the raw material soot that directly or indirectly drops from the upstream supply plate toward the crimping portions of the first and second rolls, and the upstream supply plate, From the upstream supply plate to the bottom A lead roller that adjusts the amount of raw material fed to the side supply plate, and a control device that controls the main electric motor based on an artificial operation to the work switch, between the upstream supply plate and the lead roller A hulling machine in which the inclination angle of the upstream supply plate can be changed so that the gap width can be adjusted, and the gap width between the upstream supply plate and the lead roller is detected directly or indirectly. A gap width sensor and a lead roller drive motor for driving the lead roller, and the control device, when the gap width between the upstream supply plate and the lead roller is larger and smaller than a reference gap width, The output of the lead roller drive motor is increased and decreased from a reference rotational speed.

According to the hulling machine having the above configuration, the first roll and the second roll are moved around the fixed shaft and the movable shaft by the rotational power of the main electric motor by turning the work switch ON (switching from the OFF state to the ON state). The first roll and the second roll are respectively rotated and driven, and the second roll is pressed against the first roll by the pushing mechanism at a predetermined pressure, and in this state, the raw material dripping from the lower end opening of the supply tank is upstream. By feeding the first and second rolls through the side supply plate and the downstream supply plate, the hulling operation by the first and second rolls is performed. At this time, by changing the inclination angle of the upstream supply plate, the gap width between the upstream supply plate and the lead roller rotated by the lead roller drive motor is adjusted. The amount of raw material waste that passes and is supplied between the first and second rolls can be adjusted.
Here, the control device directly or indirectly detects the gap width between the upstream supply plate and the lead roller via the gap width sensor, and when the detected gap width becomes larger than a predetermined reference gap width, The output of the read roller drive motor is controlled to increase from a predetermined reference rotational speed. When the detected gap width becomes smaller than the reference gap width, the output of the lead roller drive motor is controlled to be decelerated from the reference rotation speed.

  As described above, when the gap width between the upstream supply plate and the lead roller is reduced and the passing amount of the raw material cake is reduced, the raw material cake passing through the gap width is reduced by reducing the rotation speed of the lead roller. Can be made difficult to be scattered by the lead roller, and the supply posture and the supply amount of the raw material rice cake can be stabilized when supplied to the crimping portions of the first and second rollers. On the other hand, when the gap width between the upstream supply plate and the lead roller becomes large and the amount of raw material passes increases, the amount of raw material pass through the gap width by increasing the rotation speed of the lead roller. On the other hand, the feeding action by the lead roller can be promoted, and the layer thickness of the raw material cake when supplied to the crimping portions of the first and second rolls can be reduced. Therefore, the hulling efficiency by the first and second rolls can be favorably maintained regardless of the change in the supply amount of the raw material koji.

  Preferably, the downstream supply plate is supported by a downstream pivot shaft disposed above the first and second rolls so as not to be relatively rotatable, and the upstream supply plate is inclined in the downstream direction. It is supported so as not to rotate relative to the upstream pivot shaft disposed in parallel with the downstream pivot shaft above the downstream pivot shaft so as to be opposite to the inclination direction of the side supply plate, The gap width sensor is a rotation amount sensor that detects the rotation amount of the upstream pivot shaft or a position sensor that detects an inclination angle of the upstream supply plate.

In this case, the downstream pivot shaft supports the downstream supply plate so as not to be relatively rotatable, and the upstream pivot shaft has the upstream supply plate inclined in the opposite direction to the downstream supply plate inclined. Thus, the upstream supply plate is supported so as not to be relatively rotatable. The gap width sensor detects a rotation amount of the upstream pivot shaft as a rotation amount sensor or detects an inclination angle of the upstream supply plate as a position sensor, thereby determining a gap width between the upstream supply plate and the lead roller. Detect indirectly.
Thereby, the structure of the gap width sensor can be simplified.

  More preferably, an upstream supply plate electric motor having an output shaft that extends in a direction orthogonal to the upstream pivot shaft and is driven to rotate about the axis, and a screw provided on the outer peripheral surface of the output shaft are screwed. A drive-side member having a threaded hole, the drive-side member extending in parallel with the upstream pivot shaft, and a base end side supported by the upstream pivot shaft in a relatively non-rotatable manner on the free end side A driven side member provided with an opening through which the drive side member is engaged, and an inclination angle operating member capable of artificially operating the inclination angle of the upstream supply plate, wherein the opening is electrically connected to the upstream supply plate The drive side member has a shape that prevents the drive side member from rotating about the axis of the output shaft when the motor is driven, and the control device is configured to control the upstream side according to an operation signal from the tilt angle operation member. While controlling the operation of the side supply plate electric motor, Based on the signal from the gap width sensor, the relationship between the gap width between the upstream supply plate and the lead roller stored in advance and the output rotation speed of the lead roller drive motor is used. The control amount is calculated to control the operation of the lead roller drive motor.

In this case, by manually manipulating the tilt angle operation member, the control device operates the upstream supply plate electric motor by an amount corresponding to the operation signal from the tilt angle operation member. When the upstream supply plate electric motor is driven to rotate the output shaft extending in the direction orthogonal to the upstream pivot shaft around the axis, the screw provided on the outer peripheral surface of the output shaft causes the upstream pivot The drive side member tries to rotate around the axis of the output shaft by being screwed into the threaded hole of the drive side member extending parallel to the shaft. However, the drive side member is engaged with the opening of the driven side member whose base end portion is supported by the upstream pivot shaft so as not to be relatively rotatable, and the opening of the driven side member is the drive side member. The drive side member advances and retreats along the axis direction of the output shaft according to the drive of the upstream supply plate electric motor. Operate.
In this way, the driven member moves forward and backward in the axial direction of the output shaft in accordance with the drive of the upstream supply plate electric motor, so that the driven member moves the upstream pivot shaft around the axis. Rotate. In this way, the inclination angle of the upstream supply plate changes.
Therefore, the inclination angle of the upstream supply plate can be accurately controlled by controlling the operation of the upstream supply plate electric motor. That is, it is possible to accurately adjust the gap width between the upstream supply plate and the lead roller according to the amount of raw material sent from the supply tank to the upstream supply plate. Raw material soot can be supplied from the supply plate to the supply plate in a layered state.

In this way, when the gap width sensor detects that the inclination angle of the upstream supply plate has changed, the control device detects the gap width between the upstream supply plate and the lead roller stored in advance and the The control amount of the lead roller drive motor is calculated using a relational expression with the output rotation speed of the read roller drive motor. The control device controls the operation of the lead roller drive motor based on the calculated control amount.
Therefore, high-precision and high-speed control processing is performed by associating the change in the gap width between the upstream supply plate and the lead roller with the change in the output rotation speed of the lead roller drive motor using a previously stored relational expression. be able to.

  More preferably, it further comprises a rotary encoder that detects a rotation angle around the axis of the output shaft of the upstream supply plate electric motor, and the controller controls the upstream supply plate electric motor based on a detection signal from the rotary encoder. Control.

In this case, the rotary encoder detects the rotation angle around the output shaft of the upstream supply plate electric motor. Then, the control device controls the upstream supply plate electric motor based on the detected rotation amount of the output shaft of the upstream supply plate electric motor.
Thereby, since the rotation control of the upstream supply plate electric motor can be performed with high accuracy, the tilt angle of the upstream supply plate can be controlled with high accuracy.

  Preferably, the control device includes a manual mode for controlling the upstream supply plate electric motor based on an operation signal from the tilt angle operation member, and an automatic mode for automatically controlling the upstream supply plate electric motor. In the automatic mode, the gap width between the upstream supply plate and the lead roller is set to a predetermined amount based on signals from the upper limit sensor and the lower limit sensor of the tank in the sorter following the hulling machine. The upstream supply plate electric motor is controlled to increase or decrease.

In this case, by manually operating the tilt angle operation member, the control device activates the manual mode and controls the upstream supply plate electric motor based on the operation signal from the tilt angle operation member.
Further, based on the signals from the upper limit sensor and the lower limit sensor provided in the tank of the sorter subsequent to the hulling machine, the control device activates the automatic mode and the gap between the upstream supply plate and the lead roller. The upstream supply plate electric motor is controlled so as to increase or decrease by a predetermined amount.
Thus, by feeding back the supply status to the process following the hulling machine, the flow of the raw material hull in the whole hulling system including the hulling machine can be improved, and the efficiency of the hulling work can be achieved.

  According to the hulling machine according to the present invention, when the gap width between the upstream supply plate and the lead roller is reduced and the amount of the raw material pass is reduced, the rotation speed of the lead roller is reduced to reduce the gap. Raw material soot passing through the gap width can be made difficult to be scattered by the lead roller, and the supply posture and supply amount of the raw material soot when being supplied to the crimping part of the first and second rolls can be stabilized. it can. On the other hand, when the gap width between the upstream supply plate and the lead roller becomes large and the amount of raw material passes increases, the amount of raw material pass through the gap width by increasing the rotation speed of the lead roller. On the other hand, the feeding action by the lead roller can be promoted, and the layer thickness of the raw material cake when supplied to the crimping portions of the first and second rolls can be reduced. Therefore, the hulling efficiency by the first and second rolls can be favorably maintained regardless of the change in the supply amount of the raw material koji.

Hereinafter, preferred embodiments of a hulling machine according to the present invention will be described with reference to the accompanying drawings.
1 and 2 are front views of the huller according to an embodiment of the present invention, and FIGS. 3 and 4 are rear views of the huller of FIGS. 1 and 2. 1 and 3 show the state before the second roll movement (before the roll wear), and FIGS. 2 and 4 show the state after the second roll movement (after the roll wear). FIG. 5 is a configuration block diagram of a control system of the hulling machine in the present embodiment, and FIG. 6 is a diagram showing a roll driving mechanism of the hulling machine in the present embodiment.

As shown in FIGS. 1 to 4, the huller 1 according to the present embodiment includes a machine casing 2 having an upper and lower opening, an upper machine casing 3 provided in the upper opening 2 a, and the upper machine casing. 3 and a supply tank 4 for storing raw material soot.
As shown in FIGS. 1 and 2, the upper machine casing 3 is provided inside the upper machine casing 3 and at the lower end opening of the supply tank 4, and introduces grains into the hulling portion 20 in the machine casing 2. A supply port 31, a level sensor 39 provided above the supply port 31 for detecting the presence or absence of raw material waste, and a supply shutter provided in the supply port 31 for selectively opening or closing the supply port 31 32, an actuator 33 provided outside the upper machine casing 3 to drive the opening and closing of the supply shutter 32, and a guide that is supported inside the upper machine casing 3 and aligns the grains introduced from the supply port 31. A blade that is rotatably supported in a direction along the inclination of the guide plate 34 inside the upper machine casing 3 and below the guide plate 34, and sequentially introduces grains into the hulling portion 20 Car shaped lead The raw material which falls from the supply tank 4 is supported so that the upper end pivots around the upstream pivot shaft 37 in a state in which the lead roller 35 and the guide plate 34 are opposed to each other in a funnel shape. An upstream supply plate 36 that receives a ridge and naturally falls downward, and an upstream supply plate 36 that can adjust the gap width with the lead roller 35 by rotating around the upstream pivot shaft 37. It is provided and functions as the supply unit 30. The lead roller 35 is configured to be able to adjust the amount of raw material waste fed from the upstream supply plate 36 to the downstream supply plate 27 described later in cooperation with the upstream supply plate 36.

In the present embodiment, an air cylinder 74 (see FIG. 5) is used as the actuator 33, and the supply port 31 is opened and closed by changing the pressure in the cylinder. The actuator 33 may be an electric motor in addition to the air cylinder 74. In this case, the supply port 31 is opened and closed by rotating the supply shutter 31 by rotating the shaft extended from the motor shaft of the electric motor around the motor shaft.
Further, the lead roller 35 in the present embodiment is rotationally driven by a variable output type lead roller driving motor 75 (see FIG. 5).

In addition, as shown in FIGS. 1 to 5, the machine frame 2 includes a fixed shaft 21 that is rotationally driven at a first rotational speed around an axis by rotational power from a main electric motor 6 that is a drive source, and the fixed A movable shaft 23 that is capable of changing its position so as to be able to contact and separate with respect to the fixed shaft 21 in a state substantially parallel to the shaft 21, wherein the first rotational speed about the axis is provided by rotational power from the main electric motor 6. A movable shaft 23 that is rotationally driven at a second rotational speed different from the first roll 22, and a first roll 22 that is fixed to the fixed shaft 21 via an attachment screw 55 that is screwed in the axial direction of the fixed shaft 21; A second roll 24 fixed to the movable shaft 23 via an attachment screw 55 screwed in the axial direction of the movable shaft, and the second roll 24 pressed against the first roll 22 with a predetermined pressure. A pushing mechanism 25 for pushing the movable shaft 23; A downstream pivot shaft (pivot shaft) 26 disposed in parallel with the two shafts above the shaft 21 and the movable shaft 23 and below the upstream pivot shaft 36, and directly from the upstream supply plate 36 or A downstream supply plate (not shown) supported by the downstream pivot shaft 26 so as not to rotate relative to the downstream pivot shaft 26 so as to naturally drop the indirectly dropped raw material bowl toward the crimping part A1 of the first roll 22 and the second roll 24. Supply plate) 27 is provided. The downstream supply plate 27 is supported by the downstream pivot shaft 26 so as not to be relatively rotatable so that the inclination direction is opposite to the inclination direction of the upstream supply plate 36.
Further, as shown in FIG. 5, the hulling machine 1 includes a work switch 71 that performs ON / OFF switching of the hulling work by the first roll 22 and the second roll 24, and an operation signal from the work switch 71. And a control device 70 for driving the main electric motor 6, the air cylinder 74, and the lead roller drive motor 75 and operating the push mechanism 25.
The control device 70 includes a calculation unit and a storage unit (both not shown), and is configured to control the hulling machine 1 based on a program stored in the storage unit. It is realized by a microcomputer mounted on an electric circuit in the sliding machine 1 or an external computer electrically connected to the hulling machine 1.

As shown in FIG. 6, the first roll 22 and the second roll 24 are drive belts in which the driving force of the main electric motor 6 provided outside the machine frame 2 is wound around the main electric motor 6. By being transmitted through, they are rotationally driven in opposite directions and at different rotational speeds.
That is, belt pulleys 611, 211, and 231 are fixed to the output shaft 61, the fixed shaft 21, and the movable shaft 23 of the main electric motor 6 so as not to be relatively rotatable. The drive belts 621 and 623 are wound around the belt pulley 211 and the belt pulley 231. In the present embodiment, in the belt pulley 211, the diameter of the pulley around which the driving belt 621 is wound is different from the diameter of the pulley around which the driving belt 623 is wound, so that the fixed shaft 21 and the pulley The rotational speed of the movable shaft 23 is different.

  In the present embodiment, the hulling machine 1 has a tension roller 612 that applies / releases tension to the drive belt 621, and the control device 70 responds to the operation of the work switch 71 with the tension roller 612. A roller 612 is configured to transmit / block the driving force of the main electric motor 6 to the first roll 22 and the second roll 24 by applying / releasing tension to the driving belt 621.

In the present embodiment, as shown in FIG. 3, the huller 1 includes a fixed shaft support member 51 that supports the fixed shaft 21 so as to be rotatable around an axis via a bearing, and the fixed shaft support member 51. Is fixed to the machine casing 2.
In FIG. 7, the internal perspective view of the roll vicinity in the hulling machine of this embodiment is shown.
As shown in FIGS. 3 and 7, the hulling machine 1 includes a movable shaft support member 53 that supports the movable shaft 23 so as to be rotatable about an axis via a bearing, and the movable shaft support member 53 includes: A base end portion 53a supported so as to be rotatable about a rotation shaft 52 disposed in parallel with the movable shaft 23, and radially outward from the base end portion 53a with respect to the axis of the rotation shaft 52. An extending arm portion 53b; a bearing portion 53c provided on the arm portion 53b so as to rotatably support the movable shaft 23 about an axis; and a connecting portion 53d operatively connected to the pushing mechanism 25. Yes. That is, when the bearing portion 53 c rotates around the rotation shaft 52, the second roll 24 also rotates around the rotation shaft 52.
The first roll 22 and the second roll 24 are fixed to the fixed shaft support member 51 and the movable shaft support member 53 by a plurality of mounting screws 54, respectively.

In the present embodiment, the pushing mechanism 25 is configured such that one end is connected to the machine casing 2 and the other end is connected to the connecting portion 53d and the second roll 24 is brought close to the first roll 22. Thus, both rolls 22 and 24 are pressed against each other. Here, one end of the pushing mechanism 25 is fixed to the side surface of the machine casing 2 on the second roll 24 side.
In the present embodiment, an air cylinder is used as the push mechanism 25, but the invention is not limited to this. For example, an electric pressure by an electric motor may be used.
The base end portion 53a and the connecting portion 53d are arranged on the opposite sides in the radial direction with respect to the movable shaft 23. Accordingly, the second roll 24 is supported from both sides with the movable shaft 23 interposed therebetween, and the rigidity can be increased.

  The downstream supply plate 27 has a base end substantially above the first roll 22 and the second roll 24, more specifically, on the fixed shaft 21 side, and an axis substantially parallel to the fixed shaft 21 and the movable shaft 23. Is supported so as not to rotate relative to the downstream pivot shaft 26, and is configured such that the raw material slid on the surface of the downstream supply plate 27 on the second roll 24 side.

In the present embodiment, the huller 1 includes a fulcrum shaft 41 disposed above the fixed shaft 21 and the movable shaft 23 in parallel with the two shafts, and a lower end side of the fixed shaft 21 and the movable shaft 23. A link arm 42 supported by the fulcrum shaft 41 so as not to rotate relative to the fulcrum shaft 41 in a state of being interposed therebetween, and the link arm in conjunction with a movement in which the movable shaft support member 53 contacts and separates from the fixed shaft 21. The link arm 42 is operatively operated so that the lower end side of the link arm 42 is pressed toward the side of the movable shaft support member 53 facing the fixed shaft 21 so that the pivot 42 pivots around the fulcrum shaft 41. The fulcrum shaft 41 and the lower fulcrum shaft 41 are rotated so that the downstream pivot shaft 26 rotates about the axis in response to the urging member 43 for urging and the rotation of the fulcrum shaft 41 about the axis by the link arm 42. And a link mechanism 44 for operatively connected the side pivot shaft 26.
In the hulling machine 1, the inclination angle of the downstream supply plate 27 is such that the movable shaft support is supported via the link arm 42, the fulcrum shaft 41, the link mechanism 44, and the downstream pivot shaft 26. The member 53 is configured to change following the movement toward and away from the fixed shaft 21.

In the present embodiment, the link mechanism 44 includes a first link 441 supported by the fulcrum shaft 41 so as not to rotate relative to the fulcrum shaft 41, and a second link 442 supported by the downstream pivot shaft 26 so as not to rotate relative thereto. An intermediate link 443 having one end connected to the free end of the first link 441 so as to be relatively rotatable and the other end connected to the free end of the second link 442 so as to be relatively rotatable.
The bearing portion 53 c has a substantially arc-shaped outer peripheral surface centered on the axis of the movable shaft 23, and the lower end side of the link arm 42 is an outer peripheral surface of the bearing portion 53 c by the biasing member 43. It is comprised so that it may be pressed by the side facing the said fixed axis | shaft 21 among these.

  Further, the huller 1 includes a rotation amount sensor 77 that directly or indirectly detects a rotation amount around the rotation shaft 52. More specifically, the rotation amount sensor 77 is configured to detect a rotation amount around the axis of the fulcrum shaft 41. For example, the rotation amount sensor 77 is realized by a rotary encoder or the like. Instead of the rotation amount sensor 77, a position sensor such as a limit switch that directly or indirectly detects the position of the movable shaft support member 53 around the rotation shaft 52 may be used.

Here, the flow of the hulling work in the hulling machine 1 having the above configuration will be described.
In FIG. 8, the control flowchart regarding the hulling work in this embodiment is shown.
In the present embodiment, as shown in FIG. 8, first, by operating the work switch 71 from the OFF state to the ON state (step Q1), the control device 70 performs the ON operation of the work switch 71. It is determined whether or not the operation is the first operation after the main power source (not shown) is turned on (step Q2). If the ON operation is performed for the second time or later (No in step Q2), the level sensor 39 When the raw material soot is supplied from the supply tank 4 to the supply port 31, the air cylinder 74 of the actuator 33 is driven to open the supply shutter 32, and the lead roller drive motor 75 is driven to drive the lead roller. By rotating 35, the raw material soot stored in the supply tank 4 is dropped into the supply unit 30 (step Q3).

The raw material soot dropped from the supply port 31 slides down a flow path formed by the guide plate 34 and the upstream supply plate 36 below the supply soot, and is transferred to the lead roller 35 that is rotationally driven by the lead roller drive motor 75. Supplied.
As the lead roller 35 rotates, the raw material soot supplied to the lead roller 35 is sequentially fed into the machine frame 2 in a uniform layer state according to the gap width between the lead roller 35 and the upstream supply plate 36. Supply to the hulling unit 20.

  Further, the control device 70 operates the main electric motor 6 to rotate the first roll 22 and the second roll 24, operates the push mechanism 25, and rotates the second roll 24. It rotates around the shaft 52 and moves in the direction approaching the first roll 22. (Step Q6).

In the present embodiment, the movable shaft support member 53 rotates around the rotation shaft 52 of the proximal end portion 53a in accordance with the push mechanism 25 that is operatively connected to the connecting portion 53d, whereby the proximal end portion 53a. The movable shaft 23 supported by the bearing portion 53c provided on the arm portion 53b extending outward in the radial direction with respect to the axis line of the rotating shaft 52 moves in the direction approaching the fixed shaft 21. To do.
Thereby, between the said 1st roll 22 and the said 2nd roll 24, the crimping | compression-bonding part A1 in which the said 1st roll 22 and the 2nd roll were mutually pressed by the predetermined pressure is formed.

In this embodiment, the control device 70 is configured such that the movable shaft support member 53 is in an initial position while the first roll 22 and the second roll 24 are rotationally driven after a delay time T from the opening operation of the supply shutter 32. The push mechanism 25 is operated so as to start moving toward the work position where the crimping part A1 is formed.
More specifically, after the air cylinder 74 is actuated, the control device 70 starts timing by a timer (not shown) built in the control device 70 (step Q4). Then, after the timer has elapsed the delay time T (Yes in Step Q5), the control device 70 operates the push mechanism 25 while rotating the first roll 22 and the second roll 24 (Step Q6). Thereby, the movable shaft support member 53 rotates around the rotation shaft 52 and moves from the initial position toward the work position.

  In the present embodiment, the control device 70 stores a relational expression between the amount of rotation about the rotation shaft 52 from the initial position of the movable shaft support member 53 to the working position and the delay time T. When the work switch 71 is turned on for the first time after the power is turned on, the push mechanism 25 is operated to work around the rotating shaft 52 from the initial position of the movable shaft support member 53 to the work position. The rotation amount at the start is detected by the rotation amount sensor 77, the delay time T is calculated from the relational expression based on the rotation amount at the start of work, and the movable shaft support member 53 is returned from the work position to the initial position. The movable shaft support member 53 is operated in a state where the supply shutter 32 is opened and the first roll 22 and the second roll 24 are rotationally driven after the delay time T from the opening operation of the supply shutter 32. Toward the initial position to the working position causes movement initiated by the pressing mechanism 25.

  The material roll supplied from the supply unit 30 slides down the surface of the downstream supply plate 27 (the surface on the second roll 24 side), and the first roll to which the tip of the downstream supply plate 27 is directed. 22 is supplied to the crimping part A1 between the second roll 24 and the second roll 24. The first roll 22 driven to rotate about the fixed shaft 21 and the second roll 24 driven to rotate about the movable shaft 23 are fixed so that the second roll 24 can rotate the movable shaft 23 about the axis. In a state in which the first roll 22 is pressed with a predetermined pressure by the push mechanism 25 via a movable shaft support member 53 supported so as to be detachable from the shaft 21, the rotational power from the main electric motor 6 respectively. Since it is rotating at a different rotational speed, the raw material slag supplied to the crimping part A1 by the downstream supply plate 27 is subjected to a scouring process and discharged from the lower opening 2b. In the lower opening 2b, a wind sorting device or the like (not shown) is arranged, and the crushed grain and rice husk are sorted.

  On the other hand, when the ON operation of the work switch 71 is the first ON operation after the main power supply is turned ON (Yes in Step Q2), the control device 70 operates the push mechanism 25 (Step Q12). Then, the movable shaft support member 53 is moved from the initial position to the work position (step Q13).

When the movable shaft support member 53 is located at the work position (Yes in step Q13), the control device 70 starts the work around the rotation shaft 52 from the initial position of the movable shaft support member 53 to the work position. The amount of movement is detected by the rotation amount sensor 77 (step Q14).
In the present embodiment, the detection of the rotation amount at the start of work is performed in a state where the first roll 22 and the second roll 24 are not rotated. That is, in the step Q12, when the push mechanism 25 is operated, the first roll 22 and the second roll 24 are controlled not to be driven to rotate.

Thus, when the push mechanism 25 is operated in response to the first ON operation of the work switch 71 after the main power supply is turned ON, the first roll 22 and the second roll 24 come into contact with each other without rotating. .
Therefore, when the rotation amount at the start of work is detected, it is possible to effectively prevent the first roll 22 and the second roll 24 from slipping and wearing.

  Thereafter, based on the detected rotation amount at the start of work, the control device 70 represents a relational expression between the rotation amount around the rotation axis from the initial position of the movable shaft support member stored in advance to the work position and the delay time T. Delay time T is calculated and stored from (step Q15). Then, the movable shaft support member 53 is temporarily returned from the working position to the initial position (steps Q16 and Q17), and then the supply shutter 32 is opened, the lead roller 35 is rotated, and the supply shutter 32 is opened. After the elapse of the delay time T calculated from the start of the operation, the movable shaft support member 53 is again moved from the initial position to the work position by the push mechanism 25 while the first roll 22 and the second roll 24 are rotationally driven. To rotate around the rotation shaft 52 (steps Q3 to Q6).

  Thus, by adjusting the arrival time from the initial position of the movable shaft support member 53 to the work position according to the diameter (amount of wear) of the first roll 22 and / or the second roll 24, the first roll 22 is adjusted. In addition, while preventing the second roll 24 from slipping, the inconvenience that the raw material passes through the first roll 22 and the second roll 24 before the second roll 24 is pressure-bonded to the first roll 22 effectively. Can be prevented.

  Here, from the state of FIG. 1 and FIG. 3, the diameter of the first roll 22 and / or the second roll 24 is worn away and becomes smaller (in FIG. 2 and FIG. 4, the first roll in FIG. 1 and FIG. 3). 22 and the second roll 24 are indicated by broken lines), and the urging force of the pushing mechanism 25 causes the second roll 24 to rotate about the rotation shaft 52 and move in the direction approaching the first roll 22 (see FIG. 2 and FIG. 4), the pressure contact state (pressure bonding part A1) is maintained.

At this time, the downstream supply plate 27 operates on a fulcrum shaft 41 disposed in parallel with the two shafts above the fixed shaft 21 and the movable shaft 23 via the downstream pivot shaft 26 and the link mechanism 44. Since the link arm 42 is connected to the fulcrum shaft 41 and supported by the lower end side of the link arm 42 so as not to be relatively rotatable with the lower end side interposed between the fixed shaft and the movable shaft, the lower end of the link arm 42 is supported. The side is pressed by the biasing force of the biasing member 43 to the side of the movable shaft support member 53 that faces the fixed shaft 21.
In the present embodiment, the outer peripheral surface of the bearing portion 53 c of the movable shaft support member 53 has a substantially arc shape centered on the axis of the movable shaft 23, and faces the fixed shaft 21 in the outer peripheral surface. The lower end side of the link arm 42 is pressed to the side by the urging force of the urging member 43. That is, the link arm 42 is in point contact with the outer peripheral surface of the bearing portion 53c having a substantially arc shape.

Therefore, when the movable shaft 23 is moved toward the fixed shaft 21 by the pushing mechanism 25, the link arm 42 is biased by the biasing member 43 as the movable shaft support member 53 moves. Against the fulcrum shaft 41, and the fulcrum shaft 41 is rotated by the swing of the link arm 42, whereby the inclination angle of the downstream supply plate 27 changes via the link mechanism 44. To do.
That is, in response to the swing of the link arm 42 about the fulcrum shaft 41, the first link 441 of the link mechanism 44 supported by the fulcrum shaft 41 so as not to rotate relative to the fulcrum rotates about the fulcrum shaft 41. The second link 442 supported by the downstream pivot shaft 26 so as not to rotate relative to the downstream pivot shaft 26 is pivoted about the downstream pivot shaft 26 via an intermediate link 443 that is relatively rotatably coupled to the free end of the first link 441. As a result, the downstream supply plate 27 swings around the downstream pivot shaft 26 and the inclination angle changes.

In this way, the second roll 24 is pressed toward the first roll 22, so that the link arm 42 that moves according to the movement of the second roll 24 and the downstream side always have an optimum and constant crimping portion. The downstream supply plate 27 is operatively connected to the side supply plate 27 via the link mechanism 44, so that the downstream supply plate 27 faces the crimping part A <b> 1 in accordance with the movement of the second roll 24. It can be rotated and automatically adjusted.
Thereby, even if the position of the crimping part A1 between the two rolls changes according to the wear of the first roll 22 and / or the second roll 24, the posture of the downstream supply plate 27 is changed to the position of the crimping part A1. The change can be surely followed. Accordingly, automatic adjustment of the downstream supply plate 27 accompanying the movement of the second roll 24 can be stably performed with a simpler configuration without providing a separate sensor for detecting the roll diameter and a control device operated based on the sensor. The hulling efficiency by the first roll 22 and the second roll 24 can be maintained well.

Further, the rotation amount sensor 77 detects the rotation amount around the rotation shaft 52 of the movable shaft support member 53 by detecting the rotation amount around the axis of the fulcrum shaft 41.
Accordingly, the rotation amount sensor 77 can be reduced in size by detecting the rotation amount of the fulcrum shaft 41 that can be formed to have a smaller diameter than the rotation shaft 52 of the movable shaft support member 53.

Further, the outer peripheral surface of the bearing portion 53c of the movable shaft support member 53 is formed in a substantially arc shape centering on the axis of the movable shaft 23, and the link arm 42 is disposed on the side of the outer peripheral surface facing the fixed shaft 21. By pressing the lower end side with the urging force of the urging member 43, the movable shaft support member 53 that rotates about the rotation shaft 52 according to the wear of the first roll 22 and / or the second roll 24. The movement can be smoothly and accurately transmitted to the fulcrum shaft 41 via the link arm 42. Thereby, the attitude | position of the said downstream supply board 27 can be made to follow the position change of the crimping | compression-bonding part A1 of both rolls produced according to abrasion of the said 1st roll 22 and / or the said 2nd roll 24 stably.
Further, by connecting the first link 441 and the second link 442 supported by the fulcrum shaft 41 and the downstream pivot shaft 26 so as not to rotate relative to each other by the intermediate link 443, the fulcrum shaft 41 and the downstream side are connected. Since the arrangement of the pivot shaft 26 can be freely set, the design freedom of the link arm 42 and the downstream supply plate 27 can be improved, and the operation of the downstream supply plate 27 accompanying the movement of the movable shaft 23 can be improved. Can be performed more smoothly.

In the present embodiment, the intermediate link 443 can be adjusted in length in the longitudinal direction.
For example, the intermediate link 443 is configured such that one end and the other end are formed of different members, and the one end and the other end are provided at both ends along the longitudinal direction. The structure joined through the adjustment member which has the thread part screwed in each of these can be employ | adopted.

In this case, the swing angle of the downstream supply plate 27 relative to the swing angle of the link arm 42 can be adjusted by adjusting the length of the intermediate link 443 in the longitudinal direction.
Therefore, even after the link mechanism 44 is assembled, the position of the downstream supply plate 27 can be adjusted with higher accuracy by finely adjusting the length of the intermediate link 443 in the longitudinal direction.

In the rice huller 1, when the operation switch 71 is turned off or the level sensor 39 detects that the raw material koji in the supply tank 4 is in an empty state (Yes in step Q7 in FIG. 8), the rice huller Finish the work.
Here, the control device 70 rotates around the rotation shaft 52 of the movable shaft support member 53 when the work switch 71 is turned off or the level sensor 39 detects an empty state based on a signal from the rotation amount sensor 77. , And a new delay time T is calculated based on the rotation amount and the relational expression. When the work switch 71 is turned on next time, it is newly calculated from the opening operation of the supply shutter 32. After the delay time T, the movable shaft support member 53 is controlled to start moving from the initial position to the working position.

In this case, when the work switch 71 is turned off or the level sensor 39 detects the empty state, the control device 70 uses the rotation amount sensor 77 to move the movable shaft support member when the OFF operation or the empty state is detected. The amount of rotation about the rotation axis 52 of 53 is detected (step Q8). Then, the control device 70 newly calculates a delay time T based on the detected rotation amount and the relational expression, and updates and stores it (step Q9).
Thereafter, the supply shutter 32 is shut off (step Q10), the push mechanism 25 is operated to move the coaxial support member 53 to the initial position, and the rotation of the first roll 22 and the second roll 24 is stopped. (Step Q11).

Then, when the work switch 71 is turned on after the next time, the control device 70 starts moving the movable shaft support member 53 using the delay time T at the end of the previous operation.
Therefore, even if the first roll 22 and / or the second roll 24 are worn by the previous hulling work, the efficiency of the next hulling work can be improved.

The huller 1 in the present embodiment is configured such that the gap width between the upstream supply plate 36 and the lead roller 35 can be adjusted electrically.
In FIG. 9, the perspective view of the inclination angle adjustment mechanism vicinity of the upstream supply plate in the hulling machine of this embodiment is shown.
As shown in FIGS. 5 and 9, the hulling machine 1 includes an upstream supply plate electric motor having an output shaft 81 that extends in a direction orthogonal to the upstream pivot shaft 37 and is driven to rotate about an axis. An adjustment motor 8) and a drive side member 82 having a screwed hole 82 a into which a screw 81 a provided on the outer peripheral surface of the output shaft 81 is screwed, and extends parallel to the upstream pivot shaft 37. A drive side member 82, a driven side member 83 provided with an opening 83a in which the base end side is supported relatively unrotatably on the upstream pivot shaft 37 and the drive side member 82 is engaged on the free end side; A tilt angle operating member 72 capable of manually manipulating the tilt angle of the upstream supply plate 36, and the control device 70 operates the adjustment motor 8 by an amount corresponding to an operation signal from the tilt angle operating member 72. Is configured to drive control That.
The opening 83 a of the driven side member 83 has a shape that prevents the drive side member 82 from rotating around the axis of the output shaft 81 when the electric motor 8 is driven. More specifically, the opening 83 a has an elongated hole shape along the radial direction of the upstream pivot shaft 37.
The upstream supply plate 36 is biased in a direction approaching the lead roller 35 by a biasing member 38 attached to the driven member 83.

In this case, by manually operating the tilt angle operation member 72, the control device 70 operates the adjustment motor 8 by an amount corresponding to the operation signal from the tilt angle operation member 72. When the adjusting motor 8 is driven to rotate the output shaft 81 extending in the direction orthogonal to the upstream pivot shaft 37 around the axis, a screw 81a provided on the outer peripheral surface of the output shaft 81 is moved to the upstream pivot. The drive side member 82 tries to rotate around the axis of the output shaft 81 by being screwed into the screwed hole 82 a of the drive side member extending parallel to the support shaft 37. However, the drive side member 82 is engaged with the opening 83a of the driven side member 83 whose base end portion is supported by the upstream side pivot shaft 37 so as not to be relatively rotatable, and the opening 83a of the driven side member 83 is engaged. Has a shape that prevents the drive-side member 82 from rotating about the axis of the output shaft 81, the drive-side member 82 is driven by the adjustment motor 8 to drive the output shaft 81. It moves forward and backward along the axial direction.
When the drive side member 82 moves back and forth along the axial direction of the output shaft 81, the driven side member 83 is urged by the elongated hole shape of the opening 83a abutted against the drive side member 82. It swings around the upstream pivot shaft 37 against the biasing force of the member 38.

As described above, the drive side member 82 moves back and forth in the axial direction of the output shaft 81 in accordance with the drive of the adjustment motor 8, so that the driven side member 83 rotates around the upstream pivot shaft 37. Turn to. In this way, the inclination angle of the upstream supply plate 36 changes.
Therefore, the inclination angle of the upstream supply plate 36 can be accurately controlled by the operation control of the adjustment motor 8. That is, according to the amount of raw material sent from the supply tank 4 to the upstream supply plate 36, it is possible to accurately adjust the interval between the upstream supply plate 36 and the lead roller 35, Raw material soot can be supplied from the upstream supply plate 36 to the downstream supply plate 27 in a fixed layer state.

In this embodiment, it further includes a rotary encoder 84 that detects the rotation angle of the output shaft 81, and the control device 70 controls the operation of the adjustment motor 8 based on the detection amount of the rotary encoder 84. Yes. Thereby, since the rotation control of the adjustment motor 8 can be performed with high accuracy, the tilt angle of the upstream supply plate 36 can be controlled with high accuracy.
In place of the rotary encoder 84, the control device 70 stores rotation speed data (relationship between the operation time and the rotation angle) of the adjustment motor 8 in advance, and drives the rotation for a predetermined time, thereby tilting the angle. The adjustment motor 8 may be operated by an amount corresponding to the operation signal from the operation member 71.
Further, at this time, the rotation angle of the output shaft 81 is also detected by the rotary encoder 84, so that the rotation angle of the adjustment motor 8 by the rotation drive for the predetermined time matches the ideal value (rotation speed data). It is also possible to perform feedback control for correcting the driving time of the adjusting motor 8 according to the detection result.

In the present embodiment, the huller 1 further includes a gap width sensor 76 that directly or indirectly detects a gap width between the upstream supply plate and the lead roller, and the control device 70 includes the upstream device. When the gap width between the side supply plate 36 and the lead roller 35 becomes larger and smaller than the reference gap width, control is performed to increase and decrease the output of the read roller drive motor 75 from the reference rotation speed, respectively.
In the present embodiment, the gap width sensor 76 is a rotary encoder configured as a rotation amount sensor that detects the rotation amount of the upstream pivot shaft 37.
As another configuration of the first gap width sensor 76, a position sensor configured as a limit switch for detecting the inclination angle of the upstream supply plate 36 in multiple stages may be used, and the control device 70 may be the adjustment motor 8. The rotation amount of the upstream pivot shaft 37 may be calculated based on the operation control amount.
With such a configuration, the structure of the gap width sensor 76 can be simplified.
In FIG. 10, the control flowchart at the time of upstream side supply board inclination angle change in the hulling machine of this embodiment is shown.

  As described above, the control device 70 receives the operation signal from the tilt angle operation member 72 (step R1 in FIG. 10), and operates the adjustment motor 8 by an amount corresponding to the operation signal (step R2). Thus, when the gap width between the upstream supply plate 36 and the lead roller 35 is changed, the raw material soot passing through the gap is easily scattered by the lead roller 35, or the raw material soot passing through the gap is used. The feeding action by the lead roller 35 becomes insufficient with respect to the amount, and the problem that the hulling efficiency by the first roll 22 and the second roll 24 deteriorates may occur.

  Therefore, as shown in FIG. 10, the controller 70 directly or indirectly detects the gap width between the upstream supply plate 36 and the lead roller 35 via the gap width sensor 76 (step R3). If the gap width becomes larger than the predetermined reference gap width (Yes in step R3), the output of the read roller drive motor 75 is controlled to increase from the predetermined reference rotation speed (step R4). If the detected gap width is smaller than the reference gap width (No in step R3), the output of the read roller drive motor 75 is controlled to be decelerated from the reference rotation speed (step R5).

In the present embodiment, a relational expression between the gap width between the upstream supply plate 36 and the lead roller 35 and the output rotation speed of the lead roller driving motor 75 is stored in the control device 70 in advance. The apparatus 70 calculates a control amount of the read roller drive motor 75 using the relational expression based on a signal from the gap width sensor 76.
The relational expression is not only an arithmetic expression for calculating the control amount of the read roller drive motor 75 with respect to the detection value of the gap width sensor 76 each time, but also of the read roller drive motor 75 with respect to the detection value of the gap width sensor 76. It includes a control table in which control amounts are stored in advance.

As described above, when the gap width between the upstream supply plate 36 and the lead roller 35 is reduced and the amount of raw material passes is reduced, the rotation speed of the lead roller 35 is reduced to pass the gap width. It is possible to make it difficult for the raw material soot to be scattered by the lead roller 35, and to stabilize the supply posture and supply amount of the raw material soot when supplied to the crimping part A1 of the first roll 22 and the second roll 24. Can do. On the other hand, when the gap width between the upstream supply plate 36 and the lead roller 35 increases and the amount of raw material passes increases, the rotation speed of the lead roller 35 is increased to pass the gap width. The feeding action by the lead roller 35 can be promoted with respect to the amount of raw material soot, and the layer thickness of the raw material soot when supplied to the crimping part A1 of the first roll 22 and the second roll 24 can be reduced. . Therefore, the hulling efficiency by the first roll 22 and the second roll 24 can be maintained well regardless of the change in the supply amount of the raw material koji.
Further, the control amount of the lead roller drive motor 75 is determined by using a relational expression between the preliminarily stored gap width between the upstream supply plate 36 and the lead roller 35 and the output rotational speed of the lead roller drive motor 75. By calculating, high-precision and high-speed control processing can be performed.

In FIG. 11, the schematic block diagram of the hulling system to which the hulling machine in this embodiment was applied is shown.
In the present embodiment, as shown in FIG. 11, the hulling machine 1 constitutes a hulling system together with a subsequent sorter (swinging sorter) 10, and the hulling machine 1 performs hulling work and wind. The result of the sorting operation is configured to continuously perform the sorting operation in the sorting machine 10. More specifically, a sorter charging elevator 13 for interposing the resultant product is interposed between the lower opening 1b of the huller 1 and the upper opening 10a of the tank of the sorter 10.

  In the hulling machine 1 of the present embodiment, the control device 70 includes a manual mode for controlling the adjustment motor 8 based on an operation signal from the tilt angle operation member 72 and an automatic mode for automatically controlling the adjustment motor 8. In the automatic mode, the control device 70 is based on the signals from the upper limit sensor 11 and the lower limit sensor 12 of the tank 14 in the sorter 10 following the hulling machine 1, and the upstream supply plate 36. The adjustment motor 8 is controlled so as to increase or decrease the gap width between the lead rollers 35 by a predetermined amount.

In this case, by manually operating the tilt angle operation member 72, the control device 70 activates the manual mode and controls the adjustment motor 8 based on the operation signal from the tilt angle operation member 72.
Further, based on the signals from the upper limit sensor 11 and the lower limit sensor 12 provided in the tank 14 of the sorter 10 subsequent to the huller 1, the control device 70 activates the automatic mode and the upstream supply plate 36. The adjustment motor 8 is controlled so that the gap width between the lead rollers 35 is increased or decreased by a predetermined amount.
More specifically, for example, when only the lower limit sensor 12 detects the accumulation of cereal, it is set as a normal supply amount, and when both the upper limit sensor 11 and the lower limit sensor 12 detect the accumulation of cereal, When the upper limit sensor 11 and the lower limit sensor 12 no longer detect grain accumulation, the supply amount is increased from the normal supply amount. Take control.
Thus, by feeding back the supply status to the process following the hulling machine 1, the flow of the raw material hull in the whole hulling system including the hulling machine 1 can be improved, and the efficiency of the hulling work can be improved. .

In the present embodiment, the control device 70 has a maintenance mode activated based on an external operation, and the control device 70 stops the driving of the main electric motor 6 in the maintenance mode. The pushing mechanism 25 is operated so that the two rolls 24 are pressed against the first roll 22.
In the present embodiment, as shown in FIG. 5, a maintenance switch 73 for starting the maintenance mode is provided. The maintenance switch 73 is provided, for example, outside the machine casing 2.
FIG. 12 shows a control flowchart of the maintenance mode in the present embodiment.

As described above, according to the hulling machine 1 configured as described above, as shown in FIGS. 3 and 4, the first roll 22 is interposed via the mounting screw 54 screwed in the axial direction of the fixed shaft 21. The second roll 24 is fixed to the fixed shaft 21, and the second roll 24 is fixed to the movable shaft 23 via an attachment screw 54 screwed in the axial direction of the movable shaft 23.
Then, by switching the work switch 71 from the OFF state to the ON state, the control device 70 operates the main electric motor 6 to rotationally drive the fixed shaft 21 and the movable shaft 23, and the first roll 22 and A hulling operation mode for controlling the operation of the pushing mechanism 25 so that the pressure between the second rolls 24 becomes a predetermined value is executed.
As a result, the first roll 22 rotated around the fixed shaft 22 and the second roll 24 rotated around the movable shaft 23 are moved from the second roll 24 to the first roll 22 by the pushing mechanism 25. In a state where it is pressed at a predetermined pressure, it rotates at different rotational speeds by the rotational power from the main electric motor 6.

  Here, as shown in FIG. 12, when the maintenance switch 73 is operated (Yes in step S1), the control device 70 is in a state where the first roll 22 and the second roll 24 are in a rotation drive stopped state. Only in (Yes in step S2), the maintenance mode is activated (step S3). In the maintenance mode, the second roll 24 is pressed against the first roll 22 by the pushing mechanism 25 in a state where the rotation drive of the first roll 22 and the second roll 24 by the main electric motor 6 is stopped. . After the replacement work of the first roll 22 and / or the second roll 24 is completed, the maintenance switch 73 is operated again (Yes in step S4), so that the first mechanism 22 between the first roll 22 and the second roll 24 by the push mechanism 25 is obtained. The pressing is released (step S5).

Thus, by starting the maintenance mode, the rotation of the first roll 22 and the second roll 24 is stopped and the first roll 22 and the second roll 24 are brought into pressure contact with each other, so that the first roll Even when the mounting screw 54 screwed in the axial direction of the fixed shaft 21 or the movable shaft 23 is loosened or tightened when the replacement work of the 22 or the second roll 24 is performed, the first roll 22 and the second roll Since the 24 is in pressure contact with each other, it is possible to prevent the fixed shaft 21 or the movable shaft 23 that supports the first roll 22 or the second roll 24 from rotating together.
Moreover, since the pushing mechanism 25 used during the hulling operation is used to fix the first roll 22 and the second roll 24, a dedicated tool or a dedicated structure can be dispensed with.

  In the maintenance mode, the control device 70 according to the present embodiment operates the push mechanism 25 so that the second roll 24 is pressed against the first roll 22 at the same pressure as the predetermined pressure during the hulling operation. .

That is, the pressure between the first roll 22 and the second roll 24 does not change during the hulling operation (that is, when the first roll 22 and the second roll 24 are driven to rotate) and when the maintenance mode is activated.
In particular, in a configuration using an air cylinder such as the pushing mechanism 25 of the present embodiment, the second roll 24 is at the same pressure as the set pressure during the hulling operation with respect to the first roll 22 in the maintenance mode. It can be configured to be pressed.
Therefore, the control structure can be simplified by making the control of the push mechanism 25 in the maintenance mode the same as that during the hulling operation.

  In the configuration using an electric motor as the pushing mechanism 25, the pressure between the first roll 22 and the second roll 24 is controlled by current value control. At this time, for example, the current value when the gap width between the first roll 22 and the second roll 24 becomes 0 can be adopted as the set current value in the maintenance mode.

Further, as described above, the control device 70 does not shift to the maintenance mode when the first roll 22 and the second roll 24 are rotationally driven. That is, during the hulling operation, the control device 70 does not activate the maintenance mode even if the maintenance switch 73 is operated.
Accordingly, even if the maintenance switch 73 is erroneously operated during the hulling operation, the rotation drive of the first roll 22 and the second roll 24 is not stopped, and thus it is possible to prevent a hulling failure due to an erroneous operation. Can do.
Alternatively, the maintenance switch 73 may be configured to be inoperable by a regulating member or the like during the hulling operation.

When the first roll 22 and the second roll 24 are rotationally driven during the operation of the maintenance switch 73 (No in step S2), it is preferable to report an error by sound or a lamp (step S6). .
In addition to the above control mode, it is preferable not to shift to the hulling operation mode when the maintenance mode is executed. In this case, in the maintenance mode, even if the work switch 71 is operated to the ON state, the control device 70 does not start the hulling work mode.

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 present embodiment, the adjustment of the inclination angle of the upstream supply plate 36 is performed using the adjustment motor 8, but the present invention is not limited to this, and in addition, the back surface of the upstream supply plate 36 is used. It is also possible to adopt a configuration in which a screw member capable of moving forward and backward is provided and the angle of inclination of the upstream supply plate 36 can be manually adjusted by moving the screw member forward and backward.

It is a front view before the 2nd roll movement of the hulling machine in one Embodiment of this invention. It is a front view after the 2nd roll movement of the hulling machine in one Embodiment of this invention. It is a rear view before the 2nd roll movement of the hulling machine of FIG. It is a rear view after the 2nd roll movement of the hulling machine of FIG. It is a block diagram of the control system of the hulling machine in the present embodiment. It is a figure which shows the roll drive mechanism of the hulling machine in this embodiment. It is an internal perspective view of the roll vicinity in the hulling machine of this embodiment. It is a control flowchart regarding the hulling work in this embodiment. It is a perspective view of the inclination angle adjustment mechanism vicinity of the upstream supply plate in the hulling machine of this embodiment. It is a control flowchart at the time of the upstream supply plate inclination angle change in the hulling machine of this embodiment. It is a schematic block diagram of the hulling system to which the hulling machine in this embodiment was applied. It is a control flowchart of the maintenance mode in this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Peeler 4 Supply tank 6 Main electric motor 8 Adjustment motor (Upstream side supply plate electric motor)
21 fixed shaft 22 first roll 23 movable shaft 24 second roll 25 pushing mechanism 26 downstream pivot shaft 27 downstream supply plate 35 upstream supply plate 36 lead roller 37 upstream pivot shaft 70 controller 71 work switch 72 Inclination angle operation member 76 Gap width sensor 81 Output shaft 81a Screw 82 Drive side member 82a Screwed hole 83 Driven side member 83a Opening 84 Rotary encoder

Claims (5)

A fixed shaft that is driven to rotate about an axis by rotational power from a main electric motor; a movable shaft that is driven to rotate about an axis by rotational power from the main electric motor in a state substantially parallel to the fixed shaft; and the fixed shaft A first roll fixed to the movable shaft, a second roll fixed to the movable shaft, and a pushing mechanism for pushing the movable shaft so that the second roll is pressed against the first roll with a predetermined pressure. A supply tank disposed above the first and second rolls, an upstream supply plate that receives the raw material fountain falling from the lower end opening of the supply tank and allows it to fall naturally downward, and directly from the upstream supply plate Alternatively, the downstream side supply plate that naturally drops the indirectly dropped raw material fountain toward the crimping part of the first and second rolls, and the upstream side supply plate cooperates with the upstream side supply plate to the downstream side. Raw material sent to supply plate A clearance roller between the upstream supply plate and the lead roller, comprising a lead roller for adjusting the amount of dredging, and a control device for controlling the main electric motor and the push mechanism based on a manual operation to the work switch. A hulling machine in which the inclination angle of the upstream supply plate can be changed,
A gap width sensor for directly or indirectly detecting a gap width between the upstream supply plate and the lead roller;
A lead roller driving motor for driving the lead roller;
When the gap width between the upstream supply plate and the lead roller is larger or smaller than a reference gap width, the control device increases or decreases the output of the lead roller drive motor from the reference rotation speed, respectively. A special hulling machine. The downstream supply plate is supported in a relatively non-rotatable manner on a downstream pivot shaft disposed above the first and second rolls,
The upstream supply plate is arranged upstream of the downstream pivot shaft and in parallel with the downstream pivot shaft so that the tilt direction is opposite to the tilt direction of the downstream supply plate. It is supported so that it cannot rotate relative to the spindle.
2. The gap width sensor is a rotation amount sensor that detects a rotation amount of the upstream pivot shaft or a position sensor that detects an inclination angle of the upstream supply plate. Hulling machine. An upstream supply plate electric motor having an output shaft that extends in a direction orthogonal to the upstream pivot shaft and is driven to rotate about an axis, and a screw that is screwed into a screw provided on the outer peripheral surface of the output shaft A drive-side member having a hole, the drive-side member extending in parallel with the upstream pivot shaft, a base end side supported by the upstream pivot shaft in a relatively non-rotatable manner, and a free end side of the drive side member; A driven side member provided with an opening through which is inserted, and an inclination angle operation member capable of artificially operating the inclination angle of the upstream supply plate,
The opening has a shape that prevents the driving side member from rotating around the axis of the output shaft when the upstream supply plate electric motor is driven,
The control device controls the operation of the upstream supply plate electric motor according to an operation signal from the tilt angle operation member, and stores the upstream supply plate stored in advance based on a signal from the gap width sensor, and A control amount of the lead roller drive motor is calculated using a relational expression between a gap width between the lead rollers and an output rotation speed of the lead roller drive motor, and the operation of the lead roller drive motor is controlled. The hulling machine according to claim 2. A rotary encoder that detects a rotation angle around the output shaft of the upstream supply plate electric motor;
The hulling machine according to claim 3, wherein the control device controls the upstream supply plate electric motor based on a detection signal from the rotary encoder. The control device includes a manual mode for controlling the upstream supply plate electric motor based on an operation signal from the upstream supply plate tilt angle operation member, and an automatic mode for automatically controlling the upstream supply plate electric motor. Have
In the automatic mode, the gap between the upstream supply plate and the lead roller is increased or decreased by a predetermined amount based on signals from the upper limit sensor and the lower limit sensor of the tank in the sorter following the hulling machine. The hulling machine according to any one of claims 2 to 4, wherein an upstream supply plate electric motor is controlled.

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