JP3142843B2 - Supply cutoff device for automatic grain weighing machine - Google Patents

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. And a reciprocating member that operates via a solenoid by measuring a set amount of the shutter arm. The present invention relates to a supply port shut-off device for an automatic grain weighing machine which has an engagement portion on a shutter side and switches the supply port between full open, partial open and full close by disengagement / engagement of the engagement portion and a shutter.

[0002]

2. Description of the Related Art As described above, a reciprocating member which 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. A supply port shut-off device for an automatic grain weighing machine, wherein an engagement portion is provided on a shutter side of a shutter arm, and the supply port is switched between full opening, partial opening, and full closing by disengagement / engagement of the engaging portion and the shutter. The applicant of the present invention has developed and manufactured a prototype, and has already filed an application as Japanese Patent Application No. Hei 1-47403, but the line of action of the reciprocating member that operates via a solenoid is generally located above the end of the supply port. What is known is.

[0003]

As described above, the prior art is provided at a mounting position of a locking device including a solenoid, a reciprocating member, and a shutter arm pivotally connected to the reciprocating member. The direction of the line of action of the reciprocating member falls on the upper side of the rotation arc and is lower than the tangential direction at the pivot point with respect to the rotation arc drawn by the pivot point of the reciprocating member and the shutter arm. In this case, the angle formed between the rotation arc and the direction of the action line becomes large, and a smooth connection is hindered. In general, a connecting member is interposed, but the configuration is complicated. It is an object of the present invention to provide a supply port shut-off device for a grain automatic weighing machine which has solved these disadvantages and has been simplified.

[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 pivotally connected to a shutter arm, and the shutter arm is retracted with its upper end serving as a fulcrum to form a two-stage structure on the shutter side of the shutter arm. A supply port shut-off device for switching the supply port between full open, partial open and full close by disengagement / engagement of the engagement section and the shutter. With respect to the rotation arc drawn by the connection point, the action line direction of the reciprocating member is erected above the rotation arc from the tangential direction at the connection point, and the angle formed by the rotation arc and the action line direction is determined. By minimizing and smoothing the operation Serial reciprocating member and Shattaa - is directly connected to arm and its configuration simplified.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A supply shutter according to the present invention will be specifically described below with reference to the drawings. As shown in FIG. 3, the automatic grain weighing machine shown in this example is integrally attached to a rice sorter (K) to store sorted good brown rice in a storage tank (1).
Is stored in a bag. 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 (K), and the small rice is taken out from the exit (8) and removed. The stored good brown rice is stored in the storage tank (1) while the shutter (3) is fully opened / partially opened / closed so that the set amount is filled into the bag placed on the weighing scale (9). It has become.

Next, the details will be described with reference to FIGS. 1 and 2. A supply port (2) is opened at a lower part of the storage tank (1), and a shutter (3) has a bottom surface (11) having a curved surface with an arc-shaped cross section between both fan-shaped support plates (10). Handles (1) pivotally supported by protruding bodies (12) projecting from the upper ends of both support plates (10) on one side below the storage tank (1).
3) and moving under the supply port (2) to open and close the supply port (2), with the upper end as an axis, and the bottom face (11).
A holding member (14) which is formed by bending a plate body is attached to.

A support (4) is mounted on the other side of the lower side of the storage tank (1). The support (4) has a built-in solenoid (7). The direction of action (d) and (e) of the reciprocating member (6) is perpendicular to the inclination direction of the rear plate (B) of the tank (1) and perpendicular to the front plate (A) of the storage tank (1). The virtual intersection with the extension is configured to be located below the supply port (2), and the reciprocating member (6) moves forward against the spring (15) when the solenoid (7) is energized. When no current is supplied, the spring (15) moves backward.

The upper end of a shutter arm (5) is pivotally mounted on the support (4), and its rotation fulcrum (C) is moved in the direction of action of the reciprocating member (6). The shutter arm (5) is disposed at a position higher than the engaging portions (16) and (17), and a part of the shutter arm (5) is pivotally connected to the reciprocating member (6). Shutter arm (5)
The direction of action of the reciprocating member (6) from the tangential direction at the pivot point (T) with respect to the rotational arc drawn by the pivot point (T) of the reciprocating member (6). (E) is brought closer to the rotation arc side above the pivot point (T), and the angle between the rotation arc and the action line direction (d) and (e) is made as small as possible.
The reciprocating member (6) is directly connected to the shutter arm (5) by smoothing the operation, and the engaging portion (16) is provided at the middle part and lower end of the arm (5) on the shutter (3) side. (17) is formed, and when the reciprocating member (6) returns,
Each engaging portion (1) is attached to the shutter (3)
6) or (17) is engaged, and is disengaged and disengaged by forward movement.

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).

As a result, the handle (13) is pushed down as shown by the arrow (b), and the holding member (14) is moved in the middle of the engagement portion against the spring (15) while moving the shutter (3) upward. When engaged with (16), the shutter (3) keeps the fully open state as shown by the imaginary line (c), and the good brown rice stored in the storage tank (1) falls from the supply port (2). Are supplied in a bag placed on a weighing scale (9).

Then, when the good brown rice in the bag reaches a set amount, the solenoid (7) is momentarily energized, and the reciprocating member (6) moves forward and disengages as shown in (d). After
The spring (15) moves backward as shown in (e). At this time, the shutter (3) moves down by its weight, and the holding member (14) is engaged with the engaging portion (17) at the lower end of the shutter arm (5) where the shutter (3) has moved back. At the same time, as shown by the solid line in FIG. 1, the shutter (3) keeps the supply port (2) partially open and drops by a small amount.

When the weighing scale (9) weighs the set amount, the solenoid (7) is energized, 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), and the shutter (3) becomes a virtual line (g), and the supply port (2) is fully closed. is there.

In this manner, the shutter (3) repeats the full opening, the partial opening and the full closing, and sequentially fills 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, if the main power supply (not shown) is turned "OFF" thereafter, the reciprocating member (6) moves backward and the shutter arm (5) also has 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 weighing 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 button of "decrease" and simultaneously pressing the buttons of "increase" and "decrease", "0" is displayed.

[0015]

According to the present invention, as described in detail above, the shutter (3) pivotally attached to the supply port (2) below the storage tank (1) and the shutter (3) attached to the lower side of the storage tank (1). A shutter arm (5) having an upper end pivotally attached to the support (4);
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 a shutter arm (5); Retract the shutter arm (5) with its upper end as a fulcrum,
Detachment of shutter (3) from shutter arm (5)
In the shut-off device for switching the supply port (2) between full open, partial open and full close by engagement, the turning arc drawn by the pivot point (T) between the reciprocating member (6) and the shutter arm (5) is formed. for,
Since the action line directions (d) and (e) of the reciprocating member (6) are closer to the rotation arc side above the pivot point (T) than the tangential direction at the pivot point (T). The angle formed by the rotating arc and the direction of the action line (d) and (e) can be minimized, and the operation of the shutter arm (5) becomes smoother than the operation of the reciprocating member (6). And direct connection with each other, and the configuration can be simplified.

[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 Support body 5 Shutter arm 6 Reciprocating member 7 Solenoid 9 Weighing scale A Front side plate B Rear side plate P Operation panel S Power switch

Claims (1)

(57) [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). A reciprocating member (6) that operates via a solenoid (7) by measuring a set amount of a shutter arm (5) and a weighing scale (9) that are worn.
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. 3) Engaging part (16) (17) with two alligator configuration
The supply port (2) is fully opened / partially opened / disengaged by disengagement / engagement of the engagement portions (16) (17) and the shutter (3).
In the supply port shut-off device which is switched to the fully closed state, a tangent at the pivot point (T) is formed with respect to a rotation arc drawn by the pivot point (T) between the reciprocating member (6) and the shutter arm (5). The automatic grain weighing machine is characterized in that the action line directions (d) and (e) of the reciprocating member (6) are closer to the rotation arc side than the pivot point (T) from the direction. Supply port shut-off device.