JP2003205902A - Supply shutter of automatic grain weighing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the supply shutter of an automatic grain weighing machine of which the shutter can be closed even after weighing operation, in order to solve the problem that a conventional automatic grain weighing machine has no mechanism to close its shutter during the time when no weighing operation is carried out and the shutter is left open after weighing operation, so that the residual rice is scattered upon reopening the operation. <P>SOLUTION: According to the supply shutter, the shutter pivotally attached to the supply inlet of a storage tank and a shutter arm coupled to a reciprocating member are engaged and disengaged with each other via a solenoid to open, partly open, and close the supply inlet. The shutter can be closed by turning off a power switch to electrify the solenoid, making retreat the shutter arm via the reciprocating member. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter provided at a supply port at a lower portion of a storage tank, and an upper end pivotally attached to a support attached to a lower side of the storage tank. And a reciprocating member that operates via a solenoid by measuring a set amount of a weighing scale. The reciprocating member is connected to the shutter arm, and the shutter arm retreats with the upper end as a fulcrum. The present invention relates to a supply shutter of an automatic grain weighing machine in which a shutter of a shutter arm switches the supply port between full open, negative part open and fully closed by disengagement / engagement of a shutter with an arm. 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 a shutter arm is retracted with its upper end serving as a fulcrum. An automatic grain weighing machine in which the shutter of the shutter arm switches the supply port between full open, partial open and full close by disengagement / engagement with the arm already exists (see Patent Document 1). ). In general, this kind of automatic grain weighing machine is not provided with a mechanism for fully closing the shutter except at the time of weighing. Therefore, the shutter may be left open after the weighing operation. What is sometimes caught in the storage tank or the like is scattered from the supply port. [0003] As described above, in the conventional automatic grain weighing machine, the shutter is fully closed except at the time of weighing. There is no mechanism attached, so the shutter may be left open after the weighing operation, and what is left in the storage tank at the start of the operation may be scattered from the supply port. Because of the drawbacks, the present invention has been improved in an attempt to eliminate these drawbacks and to realize a product with good handleability. Accordingly, the present invention provides a shutter provided at a supply port at a lower portion of a storage tank in order to solve the drawbacks described in the preceding paragraph and to realize a product which is easy to handle. A shutter arm having an upper end pivotally attached to a support attached to the lower side of the storage tank, and a reciprocating member that operates via a solenoid by measuring a set amount of a weighing scale, the reciprocating member being a shutter arm The supply port is fully opened / partially opened / closed by releasing / engaging the shutter arm of the shutter arm with the shutter arm.
When the power switch is fully closed, a power switch provided on an operation panel is electrically connected to the solenoid, and the power is supplied to the solenoid by an "OFF" operation of the power switch to retreat the shutter arm via the reciprocating member, thereby causing the shutter to move. The supply port was completely closed by leaving the door. With this construction, when the shutter is fully opened in the weighing operation, the shutter arm is engaged with the shutter and the shutter arm is kept in the fully opened state, and the grains in the storage tank fall from the supply port. When the grains are supplied into the bag and the grains in the bag reach a set amount, the solenoid is momentarily energized and the reciprocating member moves forward, and the shutter arm disengages and the shutter is released from the frame. The shutter moves down by its weight. At that time, the shutter arm moves back and the moving down shutter engages with the alligator to hold the supply port partially open, so that the shutter is moved little by little. When the cartridge is dropped from the supply port and packed in the bag in a set amount, the solenoid is energized and the reciprocating member moves forward and separates from the shutter, and the shutter makes the supply port completely quiet. As described above, the supply port is fully opened / partially opened / fully closed by the shutter, and the set amount is sequentially packed in a bag. Even when the operation is completed, the shutter maintains the fully opened state or the partially opened state. So, at the end of this work,
The power switch provided on the operation panel is turned "OFF". Then, the solenoid is energized, the shutter arm retreats via the reciprocating member, the shutter is separated from the arm, and the shutter is released from the open state, and the shutter fully closes the supply port. If the main power supply is subsequently turned "OFF", the reciprocating member moves back and the shutter arm also moves back. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a supply shutter according to the present invention will be specifically described with reference to the accompanying drawings. As shown in FIG. 3, the automatic grain weighing machine shown in this example is sequentially attached to a rice sorting machine (A) and stored in a 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 details 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) has a bottom surface (11) having a curved surface with an arc cross section between both fan-shaped support plates (10). Handles (1) that are pivotally supported by protruding bodies (12) whose upper ends of both support plates (10) protrude from 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 (11).
A holding member (14) 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) and its reciprocating member (6). When the solenoid (7) is energized, it moves forward against the spring (15), and when it is not energized, it moves backward by the force of the spring (15). An upper end of a shutter arm (5) is pivotally mounted on the support (4), and a shutter arm (5) thereof is provided.
Is connected to the reciprocating member (6),
An engaging portion (16) is provided at the middle and lower ends of the shutter (3).
(17) is formed, and when the reciprocating member (6) moves back, the engaging portions (16) or (17) are engaged with the holding member (14) of the shutter (3). However, the engagement is released and disengaged by the 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 the engaging portions (16) of the holding member (14) are held. And (17) is completely closed. With this arrangement, the handle (13) is pushed down as shown by the arrow (b), and the holding member (14) is moved to the middle 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 the set amount, the solenoid (7) is momentarily energized, and the reciprocating member (6) moves forward as shown in (d) to release the engagement. After
The spring (15) moves backward as shown in (e). At that time, the shutter (3) is moved down by the weight, and the holding member (14) is engaged with the engagement portion (17) at the lower end of the shirt arm (5) where the shirt arm (3) has moved back. At the same time, as shown by the solid line in FIG. 1, the shirt (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 draw the shirt arm (5) along the imaginary line (f). And the engaging portion (17) is disengaged from the holding member (14), and the shirt (3) becomes a virtual line (g) and the supply port (2) is fully closed. is there. In this manner, 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. In addition, even if there is no good brown rice in the storage tank (1) during the weighing operation and the weighing operation is completed, the shutter (3) is maintained in the fully open state or the 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). Then, the shutter (3) separates from the arm and releases the waiting state of the fully opened or partially opened 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) is moved back and the shutter arm (5) is also shuttered (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 is set to "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 "Check the weighing setting value", the weighing setting value is displayed on the "Weighting monitor" Press the "increase" button to increase the "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 of "increase" is used to correct the number of display monitors to "increase" and the value of "decrease" is used to correct it to "decrease". Is pressed, and if the buttons "increase" and "decrease" are simultaneously pressed, "0" is displayed. According to the present invention, as described in detail above, the upper end is pivotally attached to the shirt provided at the supply port at the lower part of the storage tank and the support attached to the lower part of the storage tank. Shutter
And a reciprocating member that operates via a solenoid by measuring a set amount of a weighing scale. The reciprocating member is connected to a shutter arm, and the shutter arm is retracted with its upper end serving as a fulcrum. -The shutter of the camera
When the supply port is fully opened, partially opened, or fully closed by engagement, a power switch provided on an operation panel is electrically connected to the solenoid, and the power switch is set to "0".
The solenoid is energized by the "FF" operation, the shutter arm is retracted via the reciprocating member, and the supply port is fully closed by the shutter coming off, so that the storage tank is in the middle of the measurement. Even if there is no kernel inside and the weighing operation is completed and the shutter is kept fully open or partially open, if the power switch provided on the operation panel is turned “OFF”, the solenoid will be energized. As a result, the shutter arm retreats via the reciprocating member, the shutter separates from the arm, releases the holding of the open state, and fully closes the supply port, so that the shutter is left open after the weighing operation. Without becoming a rat's entry path,
In addition, it was possible to provide an automatic grain weighing machine with good handleability, without the thing remaining after being caught in the storage tank or the like being scattered from the supply port.

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 a grain self-weighing device according to the present invention. [Description of Signs] l Reservoir tank 2 Supply port 3 Shutter 4 Support 5 Shutter arm 6 Reciprocating member 7 Solenoid 9 Weighing scale P Operation panel S Power switch

Claims (1)

Claims: 1. A shutter (3) provided in a supply port (2) below a storage tank (1), and a support (4) attached to a lower side of the storage tank (1). A shutter arm (5) having an upper end pivotally connected thereto, and a reciprocating member (6) which operates via a solenoid (7) by measuring a set amount of a weighing scale (9). 6) is connected to the shutter arm (5), and the shutter arm (5) is retracted with the upper end as a fulcrum. The shutter (3) of the shutter arm (5) is disengaged from and engaged with the arm. Fully open the supply port (2)
When the power switch (S) is switched to the fully closed state, a power switch (S) provided on the operation panel (P) and the solenoid (7) are electrically connected to each other, and the solenoid (7) is turned on by the "OFF" operation of the power switch (S). The automatic grain processing apparatus is characterized in that a current is supplied to the shutter arm (5) via the reciprocating member (6), the shutter arm (5) is retracted, and the supply port (2) is fully closed by the shutter (3) being detached from the sea. Supply shutter of the measuring instrument.