JP4810551B2 - Rice milling machine - Google Patents

Description

  The present invention relates to a milling apparatus for a milling machine that applies milling pressure to milled rice to process the milled rice.

As shown in Japanese Patent Application Laid-Open No. H10-260260, a dehuller cylinder that includes a resistor plate so as to block the discharge port at the front end of the wire net-like dehuller tube and that integrates a resistor plate opening / closing drive unit that opens and closes the resistor plate A milling device for a rice milling machine configured as a unit is known. This milling machine can attach and detach the removal cylinder with the resistance plate opening and closing drive unit attached to the rice milling machine body, so when cleaning the clogging cylinder and replacing parts, the resistance plate transmission system Therefore, it is possible to restore the operation by attaching / detaching the removal cylinder unit without requiring complicated work such as pressure setting adjustment associated with the disassembly / assembly of the steel plate, so that it is possible to resume the rice milling operation while maintaining the resistance plate pressure characteristic.
JP 2004-358428 A

  However, in the case of a large-sized rice mill, although the weight removal cylinder itself is small in weight, the weight as an integral construction grain removal cylinder unit including a resistance plate opening / closing portion increases, which hinders attachment / detachment work. Invite the problem of coming.

  The object of the present invention is to handle a maintenance work while keeping the handling weight small without requiring complicated disassembly adjustment of the resistance plate opening / closing transmission system when attaching and detaching the dehuller even in a large-sized rice mill. It is an object of the present invention to provide a milling device for a rice milling machine that can facilitate the process.

  The invention according to claim 1 is provided with a removal cylinder that separates the wrinkles by the finer so that it can be removed from the front side of the fuselage in the axial direction, and a resistance plate mechanism that opens and closes a discharge port that opens on the front surface of the removal cylinder The resistance plate mechanism includes a resistance plate facing the discharge port, an open / close arm that supports the resistance plate so as to be openable and closable, and an advancing / retracting shaft that drives the resistance plate to advance and retreat via the open / close arm. In the squeezing device, an opening / closing arm of a resistance plate is pivotally supported integrally with the removal cylinder, and the opening / closing arm and the advancing / retracting shaft are connected to each other, and the forward / backward movement of the reciprocating shaft is engaged therebetween A closing side engagement mechanism that elastically pressurizes the resistance plate to the discharge port with a predetermined pressure by contact, and an open side engagement mechanism that pulls the resistance plate away from the discharge port by engagement contact in the backward movement of the reciprocating shaft One of the engaging portions that engage with each other of the opening side engaging mechanism It is characterized by being configured by possible engagement and disengagement switching member switched to the disengaged position.

  A closing side engaging mechanism and an opening side engaging mechanism are interposed between the opening / closing arm and the advancing / retracting shaft, and the opening / closing arm that is engaged and abutted by the closing side engaging mechanism by the forward movement of the advancing / retreating shaft. When the resistance plate is elastically pressed to the discharge port through the predetermined pressure, a predetermined fine pressure is secured, and when the engagement / disengagement switching member is in the engagement position by the open side engagement mechanism, When the resistance plate is pulled away from the discharge port by the backward movement, the discharge port is opened, and when the engagement / disengagement switching member is switched to the non-engagement position, the reciprocating direction of the advancing / retreating shaft is not mutually engaged. Thus, the advancing / retreating shaft and the opening / closing arm can be separated from each other without receiving the engagement contact action by the opening side engagement mechanism.

According to a second aspect of the present invention, in the configuration of the first aspect, the engagement / disengagement switching member is formed in a cantilevered lever shape that protrudes laterally from the advance / retreat shaft and is capable of engaging with the open / close arm. In addition, this is pivotally supported with respect to the reciprocating axis, and a through portion that penetrates in the front-rear direction to avoid engagement with the engagement / disengagement switching member is formed in the opening / closing arm of the rotation range. It is characterized by that.
The engagement / disengagement switching member forming one of the mutual engagement portions of the open side engagement mechanism is formed as a cantilever lever projecting from the advance / retreat shaft to the side thereof, and is pivotally supported so as to be pivotable. At the position of the penetrating portion that penetrates in the front-rear direction of the open / close arm and transmits in the front-rear direction. Thus, mutual engagement is avoided, and at this time, the removal cylinder side can be separated while leaving the engagement / disengagement switching member on the advance / retreat axis side.

The present invention has the following effects.
According to the first aspect of the present invention, a predetermined fine pressure is secured by elastically pressurizing the resistance plate via the opening / closing arm by the closing side engaging mechanism, and the opening side engaging mechanism having a configuration different from the closing side engaging mechanism is provided. By providing the engagement / disengagement switching member, the discharge port is opened by the movement of the advancing / retreating shaft in the engaged position, and by switching the engagement / disengagement switching member to the non-engagement position, The advancing / retracting shaft and the open / close arm can be separated from each other without receiving the engaging contact action.

  As described above, since the opening side engaging mechanism can be separated from the driving side including the advancing / retracting shaft of the resistance plate mechanism by switching to the non-engaging position, the dehulling cylinder side can be extracted. However, the handling weight during maintenance of the removal cylinder can be kept to a minimum, and the opening / closing arm and the advancing / retracting shaft can be moved by the remounting operation on the removal cylinder side after the maintenance and the recovery operation of the engagement / disengagement switching member. Can be easily restored, so that the original rice milling operation can be resumed with a simple operation without causing fluctuations in the setting pressure of the milled rice.

  According to the invention of claim 2, the engagement / disengagement switching member is formed in the shape of a cantilever lever that protrudes from the advancing / retracting shaft and can be rotated, so that the discharge port can be opened at the engagement position, and the front / rear direction of the open / close arm By engaging and disengaging the engagement / disengagement switching member to the non-engagement position, which is the position of the penetrating portion formed through, the engagement between them is avoided. With the engagement / disengagement switching member, the advancing / retreating shaft, and its drive unit left on the rice milling machine main body side, the removal cylinder side can be attached and detached. Therefore, the removal cylinder can be maintained while securing the engagement / disengagement switching member by the open-side engagement mechanism having a simple configuration.

Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.
The milling machine of the rice milling machine is shown in FIG. 1 as a longitudinal side view thereof, and as shown in FIG. 2 as a partial view of the front cover partially broken by the arrow A in FIG. A brown rice hopper 1 that constitutes, a milling roll 2 that receives the brown rice and whitens it, and a rice removal cylinder 3 that comprises a porous tubular material 3f that surrounds the milled rice and guides the milled rice and sucks the separated rice cake by the milling. A resistance plate mechanism including a resistance plate 4 that opens and closes a discharge port 3a that opens at the front end of the removal cylinder 3 is provided, and a front cover 3d is attached thereto.

  Specifically, the milling roll 2 is driven to rotate by being connected to a driving device (not shown) provided at the rear position of the rice milling machine. The removal cylinder 3 is arranged facing the suction duct 5a formed at the lower side, and extends in the axial direction from the front surface so as to be fitted to the ring-shaped support bases 5b and 5c constituting the main frame of the fine part. It can be inserted and removed. The resistance plate 4 is a resistance composed of an opening / closing arm 4a that is supported so as to be opened and closed, an advancing / retracting shaft 6 that is connected to the opening / closing arm 4a so as to open and close the resistance plate 4, and an advancing / retracting drive unit 7. Configure the plate mechanism.

  The open / close arm 4a of the resistance plate mechanism includes a front plate 3c formed like a bowl at the front end portion of the removal cylinder 3 in which the discharge port 3a is formed as shown in FIG. Is provided with a support shaft 3e. An advancing / retracting shaft 6 is disposed so as to penetrate the upper end of the opening / closing arm 4a and connected to each other, and the resistance plate 4 is connected to the discharge port 3a by the engagement contact of the advancing / retreating shaft 6 in the advancing direction. The closing side engaging mechanism 11 that elastically pressurizes and the opening side engaging mechanism 12 that separates the resistance plate 4 from the discharge port 3a by the engaging contact of the advancing and retreating shaft 6 in the retreating direction are individually formed. Between the closing side engaging mechanism 11 and the opening side engaging mechanism 12, an adjustment range of the elastic pressure force of the resistance plate 4 by the closing side engaging mechanism 11 described below while securing individual engaging operations. In order to ensure the above, a predetermined distance B is taken.

  The closing side engaging mechanism 11 is configured to be able to engage with each other so as to provide a resilient portion between the opening / closing arm 4a and the advance / retreat shaft 6 and push the opening / closing arm 4a through the resilient portion. . In the configuration in which the elastic portion is configured as the advance / retreat shaft 6, a spring holder 6 a is formed on the advance / retreat shaft 6, and a coil spring 13 is attached to the spring holder 6 a, and the coil spring 13 engages and abuts from the back side of the opening / closing arm 4 a. A slide ring 14 is provided as possible. Since the resilient force of the coil spring 13 acting on the slide ring 14 can be adjusted according to the advance position of the advance / retreat shaft 6, the resistance plate 4 can be elastically pressurized to the discharge port 3a with a predetermined pressure. .

  The opening-side engagement mechanism 12 is configured to be able to engage with each other so as to pull back the opening / closing arm 4a, and is provided with an engagement / disengagement switching member 15 that can switch one of the engagement portions to the non-engagement position. The engagement / disengagement switching member 15 can simplify the handling in the engagement avoidance state by configuring the engagement portions to engage with each other without separating them from each side. .

  As for the example in which the engagement / disengagement switching member 15 is configured on the side of the advance / retreat shaft 6, the engagement / disengagement switching member 15 is configured by a cantilever lever that protrudes laterally from the advance / retreat shaft 6 and can engage and abut the opening / closing arm 4 a It is pivotally supported via a corrugated washer 16 so as to be rotatable. The engagement partner open / close arm 4a includes a through-hole 4b in the front-rear direction that allows the engagement / disengagement switching member 15 to pass through in order to avoid mutual engagement of a part of the engagement range of the engagement / disengagement switching member 15. Form. By rotating the engagement / disengagement switching member 15 to the position of the penetrating portion 4b C (see FIG. 2), the engagement between the open / close arm 4a and the advance / retreat shaft 6 can be avoided, and the movable portion It is possible to take out the side of the removal cylinder 3 while leaving the engagement / disengagement switching member 15 on the finer section side.

  Further, the engagement / disengagement switching member 15 can ensure stable engagement by centrally supporting a horizontally long member and integrally forming two cantilever levers on both the left and right sides as in the configuration example. By forming the penetrating portion 4b with a vertically long slit-shaped notch that can be engaged at both ends, the detachability can be improved.

  When the advancing / retreating shaft 6 is moved forward by the control of the advancing / retreating drive unit 7, the precision device configured as described above is connected via the open / close arm 4a engaged and abutted by the slide ring 14 of the closing side engaging mechanism 11. Since the resistance plate 4 is elastically pressed to the discharge port 3 a, a fine pressure corresponding to the advance position of the advance / retreat shaft 6 is secured via the coil spring 13.

  When the engagement / disengagement switching member 15 of the opening side engagement mechanism 12 is in the engaged position, the engagement / disengagement switching member 15 is moved by the backward movement of the advancing / retreating shaft 6 as shown in the longitudinal side view when the remaining rice is discharged in FIG. The resistance plate 4 can open the discharge port 3a and discharge the residual rice in the deriving cylinder 3 by the backward movement of the predetermined distance D after the contact with the opening / closing arm 4a. Further, by rotating the engagement / disengagement switching member 15 to the angular position of the penetrating portion 4b of the open / close arm 4a, mutual engagement in the backward direction of the advance / retreat shaft 6 is avoided. The advancing / retreating shaft 6 and the opening / closing arm 4a can be separated from each other without receiving an action.

  Accordingly, as shown in FIG. 5 which is a longitudinal side view of the dehuller cylinder, the side of the dehuller cylinder 3 including the open / close arm 4a is removed from the support bases 5b and 5c of the finer section to clean the porous cylinder 3f. After performing maintenance by exchanging parts, it can be directly mounted on the precision unit by reverse operation.

  As described above, the engagement-retreating operation with respect to the opening-side engagement mechanism 12 can be separated from the drive side including the advance / retreat shaft 6 and can be extracted on the side of the dehulling cylinder 3. In addition, the handling weight at the time of maintenance of the removal cylinder 3 can be minimized, the remounting operation on the side of the removal cylinder 3 after the maintenance, and the rotation operation to the engagement position of the engagement / disengagement switching member 15. Thus, the engagement relationship between the open / close arm 4a and the advance / retreat shaft 6 can be easily restored, so that the original rice milling operation can be resumed with a simple operation without causing a change in milling setting.

  Further, the engagement / disengagement switching member 15 is pivotally supported on the advance / retreat shaft 6 as a cantilever lever projecting from the advance / retreat shaft 6, and rotates to the position of the penetrating portion 4 b formed through the opening / closing arm 4 a. As a result, it is possible to transmit without engaging contact with each other. Therefore, the side of the dehulling cylinder 3 including the open / close arm 4a is left with the advance / retreat shaft 6 and the engagement / disengagement switching member 15 remaining on the rice milling machine main body side. Detachable. Therefore, the maintenance operation of the removal cylinder 3 can be performed while the protection of the engagement / disengagement switching member 15 is secured by the open-side engagement mechanism 12 having a simple configuration.

Longitudinal side view of the milling machine FIG. 1 is a partial view of the front cover partially broken by the arrow A in FIG. Longitudinal side view with enlarged main part of resistance plate mechanism Longitudinal side view of the milling machine when the remaining rice is discharged Vertical side view of the removal cylinder

Explanation of symbols

3 removal cylinder 3a discharge port 3c front plate 3e support shaft 4 resistance plate 4a opening / closing arm 4b penetrating portion 5b support base 5c support base 6 advancing / retracting shaft 6a protruding shaft 7 advancing / retracting driving portion 11 closing side engaging mechanism 12 opening side engaging mechanism 13 Coil spring 14 Slide ring 15 Engagement / disengagement switching member 16 Wave washer C Rotation angle

Claims (2)

A resistor plate (3) that separates the cocoons by the finer so that it can be removed from the front side of the fuselage in the axial direction and opens and closes the discharge port (3a) that opens at the front of the tube (3) The resistance plate mechanism includes a resistance plate (4) facing the discharge port (3a), an open / close arm (4a) that supports the resistance plate (4) so as to be openable and closable, and the open / close arm (4a). In the milling machine of the rice milling machine comprising the advance / retreat axis (6) for driving the resistance plate (4) forward and backward,
An opening / closing arm (4a) of the resistance plate (4) is pivotally supported by the removal cylinder (3), and the opening / closing arm (4a) and the advancing / retracting shaft (6) are connected. A closing side engagement mechanism (11) that elastically pressurizes the resistance plate (4) to the discharge port (3a) with a predetermined pressure by engagement contact in the forward movement of the reciprocating shaft (6); ) Is provided with an open-side engagement mechanism (12) for pulling the resistance plate (4) away from the discharge port (3a) by engagement contact in the backward movement operation, and the open-side engagement mechanism (12) is engaged with each other. One of the engaging parts to perform is comprised by the engagement / disengagement switching member (15) which can be switched to a non-engagement position.   The engagement / disengagement switching member (15) is formed in the shape of a cantilever lever that protrudes laterally from the advance / retreat shaft (6) and is capable of engaging with the open / close arm (4a). A through-hole that is pivotally supported with respect to the shaft (6) and penetrates the opening / closing arm (4a) in the rotation range to avoid engagement with the engagement / disengagement switching member (15). The milling device for a rice mill according to claim 1, wherein (4b) is formed.

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