JPH0843336A - Automatic water content measuring instrument for crop drying machine - Google Patents

Abstract

PURPOSE:To save the labor and time required for cleaning and milling of the residual crops in the case of reuse by pressing a switching plate into contact with the low side part of a water content detection roll by means of a spring via a clutch mechanism, closing the switching plate during water content measurement so as to reserve crops on the roll, opening the plate at the end of measurement, so as to discharge the crops on the roll. CONSTITUTION:A pair of water content detection rolls 4, 4 driven by means of a gear motor are axially supported by shafts 5, 5 on the tip end of a tube route 2 for branching a part of dry crops and diagonally provided so that the supply side of crops is high and the discharge side is low. A switching plate 7 is axially supported by means of the shaft 5 on the low side part 6 of one side roll 4 and pressed into contact with the low side part 6 by means of a spring. The switching plate 7 is formed in shape so that the crop flow route between the rolls 4, 4 is blocked, and a clutch is provided so as to make the switching plate to slide on the low side part 6. When the roller 4 is rotatively driven, the switching plate 7 falls inside and stops at a stopper 11, and supplies crops on the roller 4. When water content detection is ended and a roller 4 is reversed, the switching plate 7 falls outside, stops at a stopper 10, and discharges the residual crops.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic moisture measuring apparatus for a grain dryer, which is attached to a main body of a grain dryer or an elevator to automatically measure the moisture of grain.

[0002]

2. Description of the Related Art A device for automatically measuring moisture by arranging a pair of moisture detection rolls, introducing a circulating grain between the moisture detection rolls, and crushing the grain by rotation of the moisture detection rolls , Which is known prior to the filing of the present application.
(See Japanese Patent Publication No. 7).

[0003]

Conventionally, this type of moisture measuring device supplies grain from a main body of a grain dryer or an elevator to a space between a pair of moisture detecting rolls by using a pipe line to rotate the moisture detecting rolls. The grain is crushed by and the moisture content is measured from the electrical resistance of the grain. Therefore, the grain to be measured is always supplied between the rolls, but the grain being circulated between the moisture detection rolls does not end even when the drying is not completed even after the rotation of the moisture detection roll is stopped after the measurement. A part of the grain is supplied and remains on the moisture detection roll, and remains even after the drying operation is completed.

Therefore, when the grain dryer is reused,
It is necessary to clean the moisture detection roll, traditionally by rotating the moisture detection roll to crush the remaining grain, or
Although air is blown to remove the residual grain, any of these methods has a problem that it is troublesome and troublesome and takes a considerable amount of time.

The present invention has been invented in view of the above problems of the prior art, and its object is to:
It is an object of the present invention to provide an automatic moisture measuring device for a grain dryer, which has a simple structure, is inexpensive, does not require cleaning work when it is reused, and can shorten the moisture measuring time.

[0006]

In order to achieve the above object, an automatic moisture measuring device for a grain dryer according to the present invention comprises a pair of moisture detecting rolls which are opposed to each other at an appropriate interval, and between the moisture detecting rolls. In an automatic moisture measuring device for a grain dryer that inputs grain to measure the moisture, the moisture detecting roll is obliquely installed so that the grain input side is higher, and one of the moisture detecting rolls is provided with a spring on the lower side. It is composed of an opening / closing plate that is pressed against the side of the roll by means of a roller, a clutch mechanism provided on the roll and the opening / closing plate, and a stopper that holds the opening / closing plate in the open position or the closed position.

[0007]

Since the automatic moisture measuring device for a grain dryer according to the present invention is configured as described above, when the grain is put into the grain dryer and the operation is started, the grain is removed from the main body of the grain dryer. → Elevator → Circulated with the grain dryer body.

When a pipe is provided in a part of the elevator and the moisture measuring device of the present invention is provided therein, a part of the grain dropped from the bucket is supplied in the process of lifting the grain by the bucket of the elevator. It is supplied between the moisture detection rolls that flow down the path and are installed obliquely. An opening / closing plate is pressed against a lower side portion of one of the moisture detection rolls by a spring, and is normally held in an open position by a stopper. When moisture is measured, the opening / closing plate pressed against the sides of the rolls that rotate the moisture detection rolls inwardly rotates inward with the rotation of the moisture detection rolls and closes in 4 to 5 seconds. It is held by a stopper at the position (Since the open / close plate is designed to move lightly compared to the rotation torque of the roll, the grain supplied from the elevator accumulates on the moisture detection roll in the required amount, and the excess grain overflows. Return to the elevator from the outlet.The knurling is provided on the peripheral surface of the moisture detection roll, and it is easy to crush the grains by rolling them inward by the inward rotation of the moisture detection roll. After that, when the moisture detection roll is reversely rotated (outward) for about 5 to 6 seconds, the opening / closing plate is rotated outward together with the moisture detection roll and held in the open position, and the moisture detection roll is stopped. Grains are still being supplied from the elevator even after the moisture measurement is completed, but the moisture detection rolls are high on the input side and low on the discharge side, and the opening / closing plate is in the open position and the flow path between the moisture detection rolls is in the open position. Since the grain is open, the grains do not collect on the moisture detection roll and fall toward the outlet, so that the grain does not remain on the moisture detection roll, and when the moisture measurement is performed again, If you rotate it normally for 5 to 6 seconds, the opening and closing plate will be automatically held in the closed position, so you can collect the amount of grain necessary for moisture measurement on the roll.
The moisture measurement can be started immediately without wasteful crushing of residual grain.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 1 is an elevator. This elevator 1 is attached to a grain dryer (not shown), and a pipe line 2 from a part of the machine body to a discharge port using a square pipe or the like. To form a branch. A pair of moisture detection rolls 4 and 4 driven by a gear motor 3 are supported by a shaft 5 at appropriate positions in the conduit 2. The moisture detecting rolls 4 and 4 are obliquely installed so that the grain supply side is high and the grain discharge side is low, and an opening / closing plate 7 is penetratingly supported by the shaft 5 on the lower side portion 6 of one roll, and a spring 8 is provided. It is pressed against the lower side portion 6 of the moisture detection roll 4. The opening / closing plate 7 has a shape such that the lower end of the grain flow path between the moisture detecting rolls 4 and 4 can be closed, and a sliding clutch mechanism 9 is provided to facilitate pressure contact with the lower side portion 6 of the moisture detecting roll 4. There is. 10 and 11 are stoppers, which are stoppers 10.
Holds the opening / closing plate 7 in the open position, and the stopper 11 holds the opening / closing plate 7 in the closed position. Reference numeral 12 is a brush that removes grains adhering to the moisture detection rolls 4 and 4.

[0010]

Since the present invention is constructed as described above, it has the following effects.

Since a pair of moisture detection rolls are installed obliquely and the opening / closing plate is pressed against the lower side of the rolls by a spring through a clutch mechanism, the rolls are rotated in the forward direction during moisture measurement, and the opening / closing plate is opened. The amount of grain necessary for moisture measurement can be retained on the roll by holding it in the closed position, and when the moisture measurement is completed, the roll is rotated in the reverse direction and the opening / closing plate is held in the open position for feeding. It is possible to drop the grain to be discharged into the discharge port without staying on the roll. Therefore, it is possible to omit the wasteful process of crushing the residual grain at the time of measuring the water content and then starting the measurement as in the conventional case.

Further, since the opening / closing plate can be opened and closed only by rotating the moisture detecting roll forward and backward, the structure is simple and the cost is low, and the manual operation is not required, and the moisture measurement can be easily performed.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a state in which an automatic moisture measuring device for a grain dryer according to the present invention is installed in an elevator.

FIG. 2 is a front perspective view showing a main part of an automatic moisture measuring device for a grain dryer according to the present invention.

[Explanation of symbols]

 1 Elevator 4 Moisture Detection Roll 6 Low Side 7 Opening Plate 8 Spring 9 Clutch Mechanism 10 Stopper 11 Stopper

Claims (1)

[Claims] 1. An automatic moisture measuring device for a grain dryer in which a pair of moisture detecting rolls are opposed to each other at an appropriate interval and a grain is put between the moisture detecting rolls to measure moisture. While obliquely installed so that the charging side is higher, on the low side of either one of the moisture detection rolls,
An automatic moisture measuring device for a grain dryer, comprising an opening / closing plate that is pressed against the side of the roll by using a spring, a clutch mechanism provided on the roll and the opening / closing plate, and a stopper that holds the opening / closing plate in an open position or a closed position.