JPH0570646U - A control device for the amount of suction and the amount of suction air in a paddy hull sorting machine. - Google Patents

Abstract

(57) [Summary] [Purpose] Automatically control the amount of protrusion so that the amount of grains and the amount of protrusion in the mixed rice tank are balanced by the detection operation of the level sensor, and also the amount of suction selection air is removed. The increase / decrease is automatically adjusted according to the amount of the quantity, so that a good selection work can be continued for a long period of time by the quantity of the selection wind corresponding to the amount of protrusion. [Structure] A flow rate adjusting shutter 109 for adjusting a sliding amount at an entrance of a hulling section 102, and a sorting air passage 11 of a hulling sorting machine 101.
8 and a suction blower 121 are connected to a suction port 122 of a suction duct 120, which is provided with a suction air volume adjusting shutter 124 for adjusting the opening degree. And the flow rate adjusting shutter 1
The flow rate adjusting shutter control device 108 for adjusting the opening / closing operation of 09 and the suction air amount adjusting shutter control device 123 for adjusting the suction air amount adjusting shutter 124 are connected to the level sensors 132 provided in the mixed rice tank 130, respectively. It is a composition.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention detects the amount of grains in the mixed rice tank by the detection operation of the level sensor, and automatically adjusts the amount of sliding out and the amount of suction sorting air to accurately achieve efficient hulling sorting work. The present invention relates to a controller for controlling the amount of suction and the amount of suction air in a paddy hull sorting machine.

[0002]

[Prior Art]

 Conventionally, in a hulling / sorting machine, the flow rate at which the level sensor 4 provided in the mixed rice tank 3 and the inlet of the hulling unit 1 can be adjusted to increase / decrease the amount of sliding by the forward / reverse rotation operation of the forward / reverse rotation motor 5. When the level sensor 5 detects that a predetermined amount or more of grains have been supplied into the mixed rice tank 3 by connecting the adjusting shutter 2, the forward / reverse rotation motor 5 is rotated to open the flow adjusting shutter 2. The padding amount can be automatically adjusted to a well-balanced amount so that no more grains are supplied to the mixed rice tank 3 by adjusting the amount of the paddy rice to the minimum. A slide-out amount control device in a slide sorter is known before the present application, as shown in FIG.

[0003]

[Problems to be solved by the device]

 By the way, in this type of device shown in FIG. 5, only the amount of protrusion is adjusted by the detection operation of the level sensor, and any means for adjusting the amount of suction sorting air flowing through the sorting air passage is implemented. If the opening amount of the flow rate adjusting shutter is adjusted to the minimum position and the sliding amount is minimized by the detection operation of the level sensor, the flow amount is compared with the sliding amount and flows through the sorting air passage. There was a problem that the amount of suction-sorted air increased and, as a result, part of the mixed rice was sucked into the suction blower and discharged outside the machine, or the sorting performance deteriorated.

The present invention has been made in view of the above problems of the prior art, and an object thereof is to detect the amount of grains in the mixed rice tank and the amount of grains slid out by the detection operation of the level sensor. The amount of ejection is adjusted so that the amount and the amount are well balanced, and the amount of suction selection air is automatically adjusted according to the amount of ejection, and selection is performed with the amount of suction selection air that matches the amount of ejection. Therefore, it is possible to achieve a good hulling and sorting operation for a long period of time while preventing a part of the mixed rice from being discharged to the outside of the milling machine. Another object of the present invention is to provide a suction air volume control device.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a slide-out amount and suction air volume control device in a paddy-sorting machine according to the present invention is provided with a flow rate adjusting shutter for adjusting the slide-out amount at the entrance of a paddy section and a sorting air passage of the paddy-sorting machine. A suction air flow rate adjustment shutter that adjusts the opening degree is provided at the suction port that opens in the suction duct that connects the suction air blower with the suction air blower. It is connected to the level sensors installed in the mixed rice tank via the shutter control device and the suction air volume adjustment shutter control device.

The suction air volume adjustment control device includes a forward / reverse rotation motor that is normally / reversely rotated by ON / OFF operation of the level sensor, and a screw rotation shaft that is vertically rotated by the forward / reverse rotation motor. It is composed of a suction air volume adjusting shutter connected to the spiral rotating shaft.

[0007]

[Action]

 At the same time when the paddy sorting machine is started, grains are put into the paddy tank. By the way, at the start of operation, since the mixed rice is not supplied to the mixed rice tank, the level sensor is kept in the OFF state, the flow rate adjusting shutter is set to the maximum opening position, and the suction air volume adjusting shutter is set. Are set to the minimum opening position, respectively.

Therefore, a large amount of grains supplied from the paddy tank through the flow rate adjusting shutter to the pair of paddy rolls are successively slid out and then supplied to the sorting air passage to suck and sort a large amount of air flowing therethrough. The mixed rice, scrap rice and rice husk are separated by wind, the mixed rice is supplied to the mixed rice tank through an appropriate conveying means, the scrap rice is collected outside the machine, and the rice husk is sucked by a suction duct and a suction blower. After that, the company conducts a hulling sorting work that is centrally discharged outside the machine.

By the way, during the above-mentioned paddy sorting operation, if the supply amount of the mixed rice into the mixed rice tank exceeds the discharge amount of the mixed rice tank for some reason, the level sensor is turned on. With the flow rate adjustment shutter control device and suction air flow rate adjustment shutter control device that operate based on the level sensor detection signal, the flow rate adjustment shutter is moved from the maximum opening position to the minimum opening position, and the suction air flow rate adjustment shutter is moved from the minimum opening position to the maximum opening position. It is automatically controlled to be placed.

As a result, the amount of supply from the paddy tank to the pair of hulling rolls is reduced, the amount of sliding out is correspondingly reduced, and the amount of feed to the mixed rice tank is reduced. The rice is prevented from accumulating in the mixed rice tank, and the amount of sorting air passing through the sorting air passage is reduced to match the amount of sliding. Therefore, a small amount of the slid rice that has been supplied to the sorting air passage is wind-sorted by a well-balanced sorting air, and part of the slid rice is sucked into the suction blower and discharged outside the machine. Even without that, efficient hulling and sorting work can be reliably performed.

[0011]

【Example】

 Examples will be described with reference to the drawings. In FIG. 1, reference numeral 101 indicates that after grain is hulled, it is sorted into mixed rice, scrap rice and rice husk by a sorting wind, and the obtained mixed rice is supplied to a mixed rice tank 104 via an elevator 131. The scraped rice can be discharged to the outside of the machine and the rice husks can be concentratedly discharged to the outside of the machine by a suction blower 121. The rice hull sorter 101 is roughly classified into a rice hull section 102. It is composed of a wind selecting unit 103 and a mixed rice tank 104. The hulling section 102 is composed of a hull tank 105 and a pair of hulling rolls 106, 106. At a lower portion of the hull tank 105, that is, at an entrance of the hulling section 102, a feeding roll 107 rotating in one direction and its feed roll 107 are provided. A flow rate adjusting shutter 109 is provided which can set the opening gap with the feed roll 107 to the maximum opening position La or the minimum opening position Lb by the operation of the flow rate adjusting shutter control device 108.

As shown in FIG. 2, the flow rate adjusting shutter control device 108 is directly connected to a rotary shaft 110 having a flow rate adjusting shutter 109 fixed to one end thereof, and is capable of sliding in the left-right direction about the rotary shaft 110. The spiral rotary shaft 112 of the forward / reverse rotation motor M 1 is pivotally connected to the slidable body 111 via the mounting member 113, and the flow rate adjustment shutter 109 is moved to the maximum opening La position by the reverse rotation of the forward / reverse rotation motor M 1. The flow rate adjusting shutter 109 can be rotated so as to reach the minimum opening La position by forward rotation (the reverse operation is also possible). Reference numeral 114 is a stop switch for stopping the flow rate adjusting shutter 109 at the maximum opening position, and 115 is a stop switch for stopping the flow rate adjusting shutter 109 at the minimum opening position. These stop switches 114 and 115 are normally closed contacts that are opened in the closed state and the open state by the slide body 111 and the mounting member 113, respectively.

The wind selecting unit 103 provided at the lower part of the hulling unit 102 has a selecting air passage 118 for obtaining mixed rice in a main body 116 having an intake port 117 on one side and a selecting air passage for obtaining scrap rice. An air passage 119 is installed obliquely, and the upper ends of the selection air passages 118 and 119 are both connected to the intake side of the suction blower 121 via the suction duct 120 and open to one side of the suction duct 120. Further, the suction port 122 is provided with a suction air volume adjusting shutter 124 whose opening degree can be set to the minimum Lc or the maximum Ld by the operation of the suction air volume adjusting shutter control device 123. As shown in FIG. 3, the suction air volume adjusting shutter control device 123 slides the suction air volume adjusting shutter 123 along the pair of shutter guide rails 124 in the vertical direction to adjust the opening degree. The suction air flow rate adjusting shutter 123 is connected to the forward / reverse rotation motor M2 via the spiral rotation shaft 125, and the forward / reverse rotation motor M2 is normally rotated to set the opening of the suction port 122 to the minimum Lc and the reverse rotation. Can adjust the opening of the suction port 122 to the maximum Ld position (the reverse operation is also possible). Reference numeral 126 is a stop switch for stopping the suction air volume adjusting shutter 123 at the minimum opening Lc position, and 127 is a stop switch for stopping the suction air volume adjusting shutter 123 at the maximum opening Ld position. These stop switches 126 and 127 are normally closed contacts that are opened and closed by switch actuating members 128 and 129 provided on the spiral rotary shaft 125. Reference numeral 130 denotes a level sensor for detecting the amount of grains in the mixed rice tank 104. The level sensor 130 is both connected to the flow rate adjusting shutter control device 108 and the suction air amount adjusting shutter control device 123.

FIG. 4 shows the circuits of the flow rate adjusting shutter control device 108 and the suction air volume adjusting shutter control device 123 according to the present invention. In FIG. 4, 131 and 132 are both changeover switches. In FIG. 4, those denoted by the same reference numerals as those in FIGS. 1 to 3 have the same configuration.

[0015]

[Effect of the device]

 Since the present invention is configured as described above, it has the following effects. During the hulling and sorting operation, when the amount of mixed rice above the specified amount is supplied to the mixed rice tank, the flow rate adjustment shutter control device and suction air volume adjustment shutter control device are activated based on the detection signal of the level sensor to set the flow rate. Operate the adjustment shutter from the maximum opening position to the minimum opening position to automatically reduce the amount of protrusion so that the amount of protrusion is balanced.At the same time, operate the suction air volume adjustment shutter from the minimum opening position to the maximum opening position. As a result, the amount of suction air from the suction port can be increased, and the amount of suction air passing through the sorting air passage can be reduced. Therefore, according to the device of the present invention, since the wind sorting work is performed with the sort wind having the air volume corresponding to the sliding amount, a part of the mixed rice is not discharged to the outside of the machine during the wind sorting work. It is possible to continue hulling work for a long time under good condition.

[Brief description of drawings]

FIG. 1 is a front view of a hulling and sorting machine in which a main part is broken.

FIG. 2 is an enlarged rear view of the flow rate adjusting shutter control device.

FIG. 3 is an enlarged side view of a suction air volume adjustment shutter control device.

FIG. 4 is a circuit diagram of a flow rate adjusting shutter and a suction air volume adjusting shutter.

FIG. 5 is a fragmentary front view of a conventional hulling and sorting machine.

[Explanation of symbols]

 101 hulling and sorting machine 102 hulling section 103 wind selecting section 104 mixed rice tank 108 flow rate adjusting shutter control device 109 flow rate adjusting shutter 118 sorting air passage 120 suction duct 121 suction blower 122 suction port 123 suction air volume adjusting shutter control device 124 suction air volume Adjustment shutter 125 Spiral rotation axis 130 Level sensor M2 Forward / reverse rotation motor

Claims (2)

[Scope of utility model registration request] 1. An opening degree is adjusted to a suction port that is opened in a suction duct that connects a flow rate adjusting shutter that adjusts a sliding amount to a hulling portion entrance, a sorting air passage of a hulling sorting machine, and a suction blower. A level sensor provided in the mixed rice tank is provided with a suction air volume adjusting shutter, and the flow rate adjusting shutter and the suction air volume adjusting shutter are provided in the mixed rice tank via a flow rate adjusting shutter control device and a suction air amount adjusting shutter control device for controlling the opening / closing operation to be large or small. And a suction air flow rate control device for a paddy hull sorting machine. 2. The suction air volume adjustment control device includes a forward / reverse rotation motor that is normally / reversely rotated by ON / OFF operation of a level sensor, a spiral rotation shaft that is vertically rotated by the forward / reverse rotation motor, and a spiral rotation. The sliding amount and suction air amount control device in a paddy hull sorter according to claim 1, characterized in that the suction air amount adjusting shutter is connected to the shaft.