JP2802826B2 - Roll pressure adjusting device in hulling equipment - Google Patents

Description

The present invention relates to a roll pressure adjusting device in a hulling device.

(Prior Art) A conventionally known Japanese Patent Publication No. Sho 63-17499 discloses a roll pressure adjusting device in a hulling device.

In addition, Japanese Patent Publication No. 64-95 and Japanese Patent Publication No.
Japanese Patent Application Publication No. 64-96 also discloses a roll pressure adjusting device in a hulling device.

(Problems to be Solved by the Invention) Among the above-mentioned known ones, the one described in Japanese Patent Publication No. 17499/1988 can detect the contact / non-contact of rolls in a hulling apparatus. It cannot be finely adjusted to open. JP-B-64-95 and JP-B-64-
The device described in Japanese Patent Publication No. 96 is devised to enable this, but has a problem that the device is complicated and difficult to manufacture.

The present invention has been particularly improved with respect to the latter known example so that the structure is simpler and easier to adjust.

(Means for Solving the Problems) Accordingly, the present invention provides a fixed rotation roller 2 made of rubber or synthetic resin, which is fixed to a rotatable fixed shaft 1 attached to a case, and a lower end of a swing arm 10 attached to the case. A rubber or synthetic resin moving / rotating roll 12 is fixed to a swingable and rotatable moving shaft 11 attached to the
A shaft cylinder portion 18 having a through hole 13 formed in the swinging direction of the swing arm 10 is provided in a lower portion, and a horizontal shaft rod is provided in the through hole 13.
Let one end of 14 penetrate and fix the arm 16 to its protruding end 15,
A proximity switch 17 is fixed to the lower end of the arm 16 and faces the protruding piece 19 provided on the shaft cylinder portion 18 so as to face the proximity switch 17.
Is turned off when the interval with the protruding piece 19 is widened, a screw portion 21 is formed at the other end of the shaft rod 14, and a rolling wheel 22 which can be manually rotated is screwed to the screw portion 21. The rolling wheel 22 is freely rotatable only on a case 23 and is rotated by a forward / reverse rotation motor 24 provided in the vicinity thereof, and the outer surface of a screw portion 21 of the shaft rod 14 faces the shaft cylinder portion 18. When the paddy rice is supplied to the fixed rotating roll 2 and the moving rotating roll 12, the coil spring 29 is interposed between the flange 28 and the shaft cylindrical portion 18 by screwing the flange 28. The roll pressurizing device in the hulling device is configured to perform normal rotation, stop when the proximity switch 17 is turned off, and reverse for a certain time by a timer when the supply of the rice is stopped.

(Embodiment) Referring to the drawings, reference numeral 1 denotes a fixed shaft mounted on a case, and a fixed rotating roll 2 made of rubber or synthetic resin is freely fixed to the fixed shaft 1 only for rotation. Reference numeral 3 denotes a paddy rice hopper for supplying paddy rice. Reference numeral 6 denotes a detector for detecting the presence or absence of rice in the hopper 3, and reference numeral 7 denotes a switch that is turned ON / OFF by the detector 6. Reference numeral 8 denotes a control valve for adjusting the amount of feeding, which can be freely moved toward and away from the feeding roll 5.

An upper end of a swing arm 10 is pivotally supported on a shaft 9 of the feeding roll 5, and a moving shaft 11 is attached to a lower portion of the arm 10. A moving rotating roll 12 of rubber or synthetic resin is fixed to the moving shaft 11.

A through hole 13 is formed in the lower part of the swing arm 10 in the swing direction of the swing arm 10, one end of a horizontal shaft 14 passes through the through hole 13, and an arm 16 Is fixed, arm 16
Proximity switch 17 is fixed to the lower end of, and is opposed to protruding piece 19 fixed to shaft cylinder portion 18 provided with through hole 13. Proximity switch
17 may be provided on the projecting piece 19 side. The proximity switch 17 is 1
It is output when the interval is about 10 mm, and can be adjusted by the operation panel 20.

A screw portion 21 is formed on the other end of the shaft rod 14, and a rolling wheel 22 that can be rotated manually is screwed into the screw portion 21. Wheel 22 is a case
23 is freely mounted for rotation only.

A forward / reverse motor 24 is provided near the wheel 22,
Sprocket provided on the sprocket 25 and the wheel 22
Multiply chain 27 with 26.

On the outer surface of the shaft rod 14, the lower end cylindrical portion 18 of the swing arm 10 and the
A flange 28 is screwed between the coil spring 29 and the other end of the coil spring 29, one end of which is in contact with the flange 28, is brought into contact with the lower end barrel 18 via a washer.

 Reference numeral 30 denotes a gap between the proximity switches 17.

However, the forward / reverse motor 24 rotates when the switch 7 of the hopper 3 and the proximity switch 17 are both ON,
Stops when OFF.

(Operation) Next, the operation will be described.

When paddy rice is supplied to the hopper 3, the detecting body 6 detects the presence of paddy rice and turns on the switch 7 to energize the motor 24 to rotate the rolling wheel 22 via the sprockets 25 and 26 and the chain 27, thereby turning the rolling wheel. Shaft rod with screw part 21 screwed to 22
Move 14 to the right in the figure.

Then, the swing arm 10 is pressed by the collar 28 attached to the shaft rod 14 via the coil spring 29, so that the swing arm 10 rotates counterclockwise about the shaft 9 and is attached to the swing arm 10. The moving rotating roll 12 is brought into contact with the outer surface of the fixed rotating roll 2. The energization of the motor 24 is still performed, so that the rotating wheel 22 continues to rotate, and the shaft 14
Is reduced to protrude outward from the through hole 13, and a gap 30 is formed between the protruding piece 19 and the proximity switch 17, the proximity switch 17 is turned off, and the motor 24 is stopped there.

Therefore, the paddy rice in the hopper 3 is fed from the feeding roll 5 and is hulled between the rolls 2 and 12 which are landed by the adjusted elasticity of the coil spring 29. In this case, the elasticity of the coil spring 29 is adjusted by the operation timing of the proximity switch 17, and
The hulling rate can be adjusted.

Switch 7 is turned off when paddy rice runs out in hopper 3.
Then, the motor 24 is rotated reversely for a fixed time via a timer, and the wheel 22 is rotated via sprockets 25 and 26 and a chain 27.
Is rotated in the reverse direction, and the shaft rod 14 is moved to the left in the figure together with the screw portion 21 screwed to the wheel 22. Then, the swinging arm 10 becomes the axis 9
, And the movable rotary roll 12 attached to the swing arm 10 is separated from the outer surface of the fixed rotary roll 2 and returned.

(Effects) The present invention provides a fixed shaft 1 that is attached to a case and can rotate only
A rubber or synthetic resin fixed rotating roll 2 is fixed to the arm, and a rubber or synthetic resin moving rotating roll 12 is fixed to a swingable and rotatable moving shaft 11 attached to the lower end of a swing arm 10 attached to the case. A shaft cylindrical portion 18 having a through hole 13 formed in the swing direction of the swing arm 10 is provided in a portion of the swing arm 10 below the moving shaft 11, and a horizontal shaft rod 14 is provided in the through hole 13. The arm 16 is fixed to a protruding end 15 of the arm 16, and a proximity switch 17 is fixed to a lower end of the arm 16 so as to face a protruding piece 19 provided on the shaft cylinder portion 18. When the distance from the projecting piece 19 is widened, it is turned off so that the shaft rod 14 is turned off.
A screw part 21 is formed at the other end, and a rolling wheel 22 that can be manually rotated is screwed into the screw part 21.
The rotation of the shaft rod 14 is freely performed, and the rotation is performed by a forward / reverse rotation motor 24 provided in the vicinity thereof.
On the outer surface, a flange 28 facing the shaft tube portion 18 is screwed and a coil spring 29 is interposed between the flange 28 and the shaft tube portion 18,
The forward / reverse motor 24 rotates forward when the paddy rice is supplied to the fixed rotary roll 2 and the movable rotary roll 12, stops when the proximity switch 17 is turned off, and reverses for a predetermined time by a timer when the supply of the rice is stopped. Since the roll pressure adjusting device in the hulling device is used, the motor 24 for supplying the hulled rice is energized to rotate the motor 24 in the forward direction.
Is rotated counterclockwise to bring the movable rotary roll 12 attached to the swing arm 10 into contact with the outer surface of the fixed rotary roll 2, and the motor 24 continues to rotate forward continuously to reduce the coil spring 29 to reduce the through hole. The shaft rod 14 protrudes outward from 13, and a gap 30 is formed between the protruding piece 19 and the proximity switch 17 to form the proximity switch 17.
Is turned off, and then the motor 24 is stopped, so that the interval can be finely adjusted. When the supply of rice is stopped, the motor 24 is reversed by a timer for a certain period of time, so that it can be easily returned to the original position.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view. DESCRIPTION OF SYMBOLS 1... Fixed shaft 2... Fixed rotating roll 3... Rice hopper 4... Feeding outlet 5... Rolling roll 6... Detector 7... Switch 8. Valve, 9 ... shaft, 10 ...
Swinging arm, 11… Moving axis, 12… Moving rotating roll, 13…
Through-hole, 14 ... Shaft, 15 ... Protruding end, 16 ... Arm, 17
…… Proximity switch, 18 …… Bottom shaft part, 19 …… Protrusion, 20
…… Operation panel, 21… Screw part, 22 …… Roller wheel, 23 …… Case, 24 …… Forward / reverse motor, 25 …… Sprocket, 26…
... sprocket, 27 ... chain, 28 ... flange, 29 ... coil spring, 30 ... gap.

Continuation of the front page (56) References JP-B Sho 63-17499 (JP, B2) JP-B Sho 64-95 (JP, B2) JP-B Sho 64-96 (JP, B2) (58) Fields surveyed (Int .Cl. ⁶ , DB name) B02B 3/00-7/00

Claims (1)

(57) [Claims] 1. A fixed shaft 1 mounted on a case and rotatable only.
A rubber or synthetic resin fixed rotating roll 2 is fixed to the arm, and a rubber or synthetic resin moving rotating roll 12 is fixed to a swingable and rotatable moving shaft 11 attached to the lower end of a swing arm 10 attached to the case. A shaft cylindrical portion 18 having a through hole 13 formed in the swing direction of the swing arm 10 is provided in a portion of the swing arm 10 below the moving shaft 11, and a horizontal shaft rod 14 is provided in the through hole 13. The arm 16 is fixed to a protruding end 15 of the arm 16, and a proximity switch 17 is fixed to a lower end of the arm 16 so as to face a protruding piece 19 provided on the shaft cylinder portion 18. When the distance from the projecting piece 19 is widened, it is turned off so that the shaft rod 14 is turned off.
A screw part 21 is formed at the other end, and a rolling wheel 22 that can be manually rotated is screwed into the screw part 21.
The rotation of the shaft rod 14 is freely performed, and the rotation is performed by a forward / reverse rotation motor 24 provided in the vicinity thereof.
On the outer surface, a flange 28 facing the shaft tube portion 18 is screwed and a coil spring 29 is interposed between the flange 28 and the shaft tube portion 18,
The forward / reverse motor 24 rotates forward when the paddy rice is supplied to the fixed rotary roll 2 and the movable rotary roll 12, stops when the proximity switch 17 is turned off, and reverses for a predetermined time by a timer when the supply of the rice is stopped. Roll pressure adjusting device in the hulling device.