JPH11278437A - Shutter closure of automatic grain measurer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid instantaneous drop of a shutter by attaching a solenoid so that a direction of a line of action of a reciprocating member is approximately in parallel to a tangential direction including a left inclined direction of an extension arc of an arcuate orbit which engaging parts of a shutter arm draw below a rotation fulcrum of the shutter arm. SOLUTION: A solenoid 7 is attached so that directions of lines of action D, E of a reciprocating member 6 is approximately in parallel to a tangential direction I including a left inclined direction of an extension arc H of an arcuate orbit which engaging parts 16, 17 of a shutter arm 5 draw below a rotation fulcrum of the shutter arm 5. Thus a direction where the engaging parts 16, 17 of the shutter arm 5 release from a holding member 14 of a shutter 3 is in a direction of a downward arc. Then, if good brown rice in a bag approaches a set amount and the solenoid 7 is instantaneously powered, the reciprocating member 6 disengages in the direction of the downward arc and then recovered by a spring 15. In response to this operation, the shutter 3 gently lowers with its weight, thereby allowing the shutter to be gradually drawn.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter pivotally connected to a supply port at the lower portion of a storage tank, a shutter arm pivotally mounted at an upper end to a support attached to a lower portion of the storage tank, and a weighing scale. A reciprocating member that operates via a solenoid by measuring a set amount of the shutter arm. The reciprocating member is connected to a shutter arm, and the shutter arm is retracted with its upper end serving as a fulcrum. Withdrawal from
The present invention relates to a shutter closing device for an automatic grain weighing machine that switches the supply port between full open, partial open, and fully closed by engagement.

[0002]

2. Description of the Related Art As described above, a reciprocating member that operates via a solenoid by measuring a set amount of a weighing scale is connected to a shutter arm, and the shutter arm is retracted with its upper end serving as a fulcrum. The applicant has developed and prototyped a shutter closing device for an automatic grain weighing machine that switches the supply port between full open, partial open, and full close by disengagement / engagement of the system and shutter. Although the application has been filed, in general, including this prototype, when the amount of cereal supplied approaches the set amount, the shutter is dropped instantaneously, the supply port is narrowed from fully open to partially open, and weighing is performed while supplying little by little. ,
When the set amount is measured, it is a general known technique that the shutter is further dropped and fully closed.

[0003]

The prior art as described above is designed to drop the shutter instantaneously when the grain supply amount approaches a set amount, and to narrow the supply port from full open to partial open. , The amount of cereal supplied suddenly changes to a small amount instantaneously, and then the shutter is fully closed when the set amount is measured.
Since it takes time to fully close, it has drawbacks such as inducing a loss time of bagging work and causing a decrease in efficiency, the present invention does not suddenly change the narrowing from full open to partial open instantaneously, gently A shutter closing device of an automatic grain weighing machine that improves efficiency by gradually reducing the supply amount of refined grain, shortening the response time, and fully closing the shutter at a stretch when the set amount is measured. It is to provide.

[0004]

Therefore, means for solving the problems described in the preceding section by the present invention will be described below. A shutter pivotally attached to the supply port at the bottom of the storage tank, a shutter arm pivotally attached to the upper end of the support attached to the lower side of the storage tank, and actuated via a solenoid by measuring a set amount of a weighing scale. The reciprocating member is connected to a shutter arm, the shutter arm is retreated with the upper end as a fulcrum, and the supply port is released and engaged with the shutter arm and the shutter. In the shutter closing device for switching between full opening, partial opening and full closing, the reciprocating member extends in an arc trajectory drawn by the engaging portion of the shutter arm below the rotation fulcrum of the shutter arm. The solenoid is mounted so as to be substantially parallel to the tangential direction of the leftward tilt of the arc, and the shutter arm is moved from the shutter holding member to the shutter arm.
By making the direction in which the arm is detached in a downward arc shape, the arm can be detached gently while the arm is detached in a horizontal linear manner, and the instantaneous drop of the shutter can be avoided.

[0005] A shutter pivotally attached to a supply port at a lower portion of the storage tank, a shutter arm having an upper end pivotally attached to a support attached to a lower portion of the storage tank, and a solenoid operated by measuring a set amount of a weighing scale. And a reciprocating member which operates through a reciprocating member. The reciprocating member is connected to a shutter arm, and the shutter arm is retracted with its upper end serving as a fulcrum. In a shutter closing device for switching a supply port between full opening, partial opening and full closing, a side surface of an engaging portion of a shutter arm has a contact surface with a holding member of the shutter and a base of the corresponding contact surface and a rotation of the shutter. The line connecting the fulcrum is formed so as to have a horizontal or upward receiving angle on the basis of the base, and the detachment direction of the shutter arm described in the preceding paragraph is made to be a downward arc along with reliable engagement. Shape corresponding to It was.

When the shutter is fully opened in the weighing operation, the shutter arm is engaged with the shutter arm to maintain the fully open state, and the grains in the storage tank fall from the supply port and are supplied into the bag. When the grain in the bag reaches the set amount, the solenoid is momentarily energized and the reciprocating member moves forward, the shutter arm disengages and the shutter is released from the frame, and the shutter is partially open. Becomes

At this time, in the configuration of the present invention, since the detaching direction is a downward arc, the detachment is made gently while the detachment is performed in a horizontal straight line. Move down. At that time, the shutter arm comes back by the spring force and engages with the lowering shutter to hold the supply port partially open, thereby narrowing the grain supply amount. The time required to reach the set amount is accelerated by gradually narrowing the shutter by the movement of the shutter without being stopped down, so that the set amount is efficiently packed in the bag. When the set amount is packed in this way, the solenoid is energized, and the reciprocating member moves forward again and separates from the shutter. However, since the engagement position between the shutter arm and the shutter has moved downward, its relative position has been reduced. When the set amount is measured, the shutter immediately closes the supply port completely.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a shutter closing device according to the present invention will be specifically described with reference to the drawings. The automatic grain weighing machine shown in this example is integrally attached to the rice sorting machine (A) as shown in FIG. 3, and sequentially stores the sorted good brown rice in the storage tank (1). It is to be packed. That is, the brown rice fed from the huller as shown by the arrow (a) is sorted by the rotary sorting cylinder built in the body of the rice sorter (A), and the small rice is taken out from the exit (8). After the brown rice is removed from the storage tank (1) and stored in the storage tank (1), the shutter (3) is fully opened / partially opened / closed and the set amount is packed into a bag placed on the weighing scale (9). It has become so.

Next, the structure of the shutter (3) will be described with reference to FIGS. A supply port (2) is opened at a lower portion of the storage tank (1), and a shutter (3) is provided with two fan-shaped support plates (1).
0) has a bottom surface (11) having a curved surface with an arc-shaped cross section, and the upper ends of both support plates (10) have storage tanks (1).
The supply port is moved by moving under the supply port (2) with the upper end as an axis integrally with the handle (13) supported by a protrusion (12) protruding from one side of the lower side. (2) is opened and closed, and a holding member (14) formed by bending a plate is attached to the bottom surface (11).

On the other hand, (4) is a support attached to the other side below the storage tank (1). The support (4) has a built-in solenoid (7), and the solenoid (7) reciprocates. The member (6) is a spring (15) when the solenoid (7) is energized.
And when it is not energized, it returns by the force of the spring (15).

[0011] The support (4) has a shutter arm.
The upper end of the arm (5) is pivotally connected, a part of the shutter arm (5) is connected to the reciprocating member (6), and the shutter arm (5) is connected to the middle and lower ends of the shutter (3). Joint part (1
6) When (17) is formed and the reciprocating member (6) is moved back, the shutter (3) and the holding member (14)
The engaging portions (16) and (17) are engaged with each other, and are disengaged and disengaged by the forward movement.

Here, a method of attaching the solenoid (7), which is a main part of the present invention, will be described in detail with reference to FIG. Action line direction of the reciprocating member (6) (d) (e)
Below the pivot point of the shutter arm (5), the tangential direction of the leftward tilt of the extension arc (h) of the arc locus drawn by the engaging portions (16) and (17) of the shutter arm (5). A direction in which the solenoids (7) are attached so as to be substantially parallel to (3), and the engaging portions (16) and (17) of the shutter arm (5) are separated from the holding member (14) of the shutter (3). In the downward arc direction. On the other hand, a shutter arm (5)
The holding member (1) has a side surface shape of the engaging portions (16) and (17).
4) is formed such that an abutting surface thereof has an upward receiving angle (nu) with respect to a line connecting the base of the corresponding abutting surface and the pivot point of the shutter (3), thereby ensuring reliable engagement. The engaging portions (16) and (17) have a shape corresponding to the detaching direction.

When the holding member (14) engages with the middle engaging portion (16), the shutter (3) opens the supply port (2).
Is held fully open, and when the holding member (14) engages with the engaging portion (17) at the lower end, the holding member (14) is held in a partially open state, and each engaging portion (16) of the holding member (14) is held. (17) The state is completely closed due to the departure from (17).

That is, the handle (13) is depressed as shown by an arrow (b), and the holding member (14) is moved to the middle engaging portion against the spring (15) while moving the shutter (3) upward. When the shutter (3) is engaged with the storage tank (1), the shutter (3) holds the fully open state as shown by the imaginary line (c).
The good brown rice stored therein falls from the supply port (2) and is supplied into a bag placed on the weighing scale (9).

Then, when the good brown rice in the bag approaches the set amount, the solenoid (7) is momentarily energized, and the reciprocating member (6) moves forward as shown in (d) to engage the same. After unwinding in the downward arc direction, the spring (15) returns by the force of the spring (15). In response to the operation, the shutter (3) starts to gradually move down due to its weight and separates from the shutter arm (5). After the separation, the shutter (3) falls rapidly. The holding member (14) engages with the engaging portion (17) at the lower end of the shutter arm (5), to which the shutter (3) has been moved back by the force, as shown by the solid line in FIG. The shutter (3) holds the supply port (2) partially open. In the meantime, the grain supply amount is gradually narrowed down, and when the supply port (2) is held in a partially open state, the grain is constantly dropped little by little.

When the weighing scale (9) weighs the set amount, the solenoid (7) is energized again, and the reciprocating member (6) moves forward again to move the shutter arm (5) to the imaginary line (f). ), The engaging portion (17) is disengaged from the holding member (14). At this time, the engaging portion (17) is in the vicinity of the action line direction (d) of the reciprocating member (6). , The shutter (3) is moved down substantially linearly in relation to the arc trajectory drawn by the holding member (14) due to the downward movement of the shutter (3), and the shutter (3) becomes an imaginary line (g), and the supply port ( 2) is quickly closed completely.

In this way, the shutter (3) repeats full opening, partial opening and full closing to sequentially fill a bag placed on the weighing scale (9) with a set amount. Also, even if the brown rice in the storage tank (1) is exhausted during the weighing operation and the weighing operation is completed, the shutter (3) will be maintained in the fully open or partially open state. When the "OFF" button of the power switch (S) provided in (P) is pressed and operated, the solenoid (7) is energized, and the shutter arm (5) is moved through the reciprocating member (6). And the shutter (3) is released from the limb to release the fully open or partially open state, and the shutter (3) fully closes the supply port (2).

Then, when the main power supply (not shown) is turned "OFF" thereafter, the reciprocating member (6) returns and the shutter arm (5) is also moved to the shutter (3).
He will return to the sea. The operation panel (P) is mounted on the front of the storage tank (1), and its function is as shown in FIG. That is, when the "ON / zero" button of the power switch (S) is pressed, the power of the operation panel (P) is turned on, and the weighing value becomes "0". When the "OFF" button of the power switch (S) is pressed, When the power of the operation panel (P) is turned off and the solenoid (7) is energized as described above and the button is pressed to perform "confirmation of the weighing set value", the weighed set value is displayed on the "weighing monitor" and " Press the “increase” button to increase the “weighing set value”, and press the “decrease” button to decrease it. Also,
The number of bags measured is displayed on the "bag number display monitor". At this time, the button "increase" is used to correct the number of display monitors to "increase", and the button "correction" is used to correct the number to "decrease". By pressing the "decrease" button and simultaneously pressing the "increase" and "decrease" buttons, "0" is displayed.

[0019]

As described in detail above, the present invention provides a shutter (3) pivotally attached to a supply port (2) below a storage tank (1) and a support attached to a lower side of the storage tank (1). It comprises a shutter arm (5) having an upper end pivotally attached to a body (4) and a reciprocating member (6) which operates via a solenoid (7) by measuring a set amount of a weighing scale (9). The moving member (6) is connected to the shutter arm (5), and the shutter arm (5) is retracted with its upper end serving as a fulcrum, so that the shutter arm (5) and the shutter (3) are disengaged and engaged. In the shutter closing device for switching the supply port (2) to fully open, partially open, or fully closed, the action line direction (d) and (e) of the reciprocating member (6) is set at the pivot point of the shutter arm (5). Of the shutter arm (5) at the lower part of the shutter arm (5)
Since the solenoid (7) is mounted so as to be substantially parallel to the tangential direction (i) of the leftward inclination of the extension arc (h) of the arc locus drawn by the shutter, the shutter arm (14) of the shutter (3) is moved from the shutter member (14). The direction in which the shutter (5) is released can be downwardly arcuate, and can be released slowly in contrast to the horizontal linear release, and the shutter (3) descends slowly and momentarily opens partially. The time required to reach the set amount is reduced by squeezing gradually instead of narrowing down the state, and the set amount is efficiently packed in the bag.

Furthermore, in the configuration and operation described in the preceding paragraph, the side surfaces of the engaging portions (16) and (17) of the shutter arm (5) are arranged so that the shutter (3) comes into contact with the holding member (14). Is formed so as to have a horizontal or upward receiving angle (nu) with respect to a line connecting the corresponding contact surface and the rotation fulcrum of the shutter (3). 16) It is possible to promote a gradual detachment corresponding to the detachment direction of (17), and to ensure a secure engagement. Furthermore,
When the set amount is packed, the solenoid (7) is energized, the reciprocating member (6) moves forward again, and the shutter arm (5) separates from the shutter (3), but the shutter arm (5).
The engaging position of the shutter (3) with the holding member (14) moves downward, and the direction of disengagement becomes slightly linear due to the relative position, so that the shutter (3) quickly opens the supply port ( By setting 2) in the fully closed state, the correct set amount can be more efficiently bagged, and the efficiency of bagging work by the automatic grain weighing machine can be improved.

[Brief description of the drawings]

FIG. 1 is a side view showing a main part of the present invention.

FIG. 2 is an enlarged view of an operation panel.

FIG. 3 is a perspective view of a rice sorting machine integrally provided with an automatic grain weighing machine according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Storage tank 2 Supply port 3 Shutter 4 Supporter 5 Shutter arm 6 Reciprocating member 7 Solenoid 9 Weighing scale 14 Holding member 16 Shutter arm engaging portion 17 Shutter arm engaging portion P Operation panel S Power switch T Extension arc Retangent direction Nu Accept angle

Claims (3)

[Claims] 1. A shutter (3) pivotally attached to a supply port (2) below a storage tank (1) and a support (4) attached to a lower side of the storage tank (1) with an upper end pivotally attached thereto. A shutter arm (5) and a reciprocating member (6) that operates via a solenoid (7) by measuring a set amount of a weighing scale (9), and the reciprocating member (6) is connected to the shutter arm (6). 5), the shutter arm (5) is retracted with the upper end portion as a fulcrum, and the supply port (2) is fully opened and disengaged by disengagement / engagement of the shutter arm (5) and the shutter (3). In a shutter closing device that switches between a partially open state and a fully closed state, an operation from a fully open state to a partially open state is performed gradually, and an operation from a partially open state to a fully closed state is performed at a stroke. Shutter closing device for automatic grain weighing machine. 2. A shutter (3) pivotally attached to a supply port (2) below a storage tank (1) and a support (4) attached to a lower side of the storage tank (1) with an upper end pivotally attached thereto. A shutter arm (5) and a reciprocating member (6) that operates via a solenoid (7) by measuring a set amount of a weighing scale (9), and the reciprocating member (6) is connected to the shutter arm (6). 5), the shutter arm (5) is retracted with the upper end portion as a fulcrum, and the supply port (2) is fully opened and disengaged by disengagement / engagement of the shutter arm (5) and the shutter (3). A reciprocating member (6) in a shutter closing device that switches between a fully opened state and a fully closed state.
Of the shutter arm (5) is below the pivot point of the shutter arm (5).
6) The solenoid according to claim 1, wherein the solenoid (7) is attached so as to be substantially parallel to a tangential direction (i) of the leftward inclined direction of the extension arc (h) of the arc locus described by (17). Shutter closing device for automatic grain weighing machine. 3. A shutter (3) pivotally attached to a supply port (2) below the storage tank (1), and a support (4) attached to a lower side of the storage tank (1). A reciprocating member (6) which operates via a solenoid (7) by measuring a set amount of a shutter arm (5) worn and a weighing scale (9).
The reciprocating member (6) is connected to a shutter arm (5), and the shutter arm (5) is retracted with its upper end serving as a fulcrum. The shutter arm (5) and the shutter (3) The supply port (2) is fully opened by disengagement / engagement with
In a shutter closing device that switches between partially open and fully closed, the side surfaces of the engaging portions (16) and (17) of the shutter arm (5) have a contact surface with the holding member (14) of the shutter (3). Receiving angle (nu) that is horizontal or upward relative to a line connecting the base of the contact surface and the pivot point of the shutter (3) with respect to the base.
A shutter closing device for an automatic grain weighing machine, comprising: