JPH0419114B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a shutter closing device installed at the outlet of a grain storage tank and operated in conjunction with a weighing machine or the like.

BACKGROUND ART Conventionally, a shutter closing device is known in which a discharge port opening downward is formed in the lower part of a grain storage tank, and a shutter is provided in the storage tank to close the discharge port in two stages.

In addition, a discharge port that opens toward the bottom of the hopper is formed, a discharge gate that closes the discharge port in two stages is rotatably arranged in the hopper, and a machine frame is provided on the side of the hopper. A part of the shaft-mounted engagement tool is connected to the solenoid rod that becomes the reciprocating member,
A hopper configured such that a fixed shaft provided on an engaging tool is movably inserted into a long hole of an actuating device having a hook portion and a long hole, and the discharge gate operates to fully open, partially close, and completely close the discharge port. Emission control device was put into operation in 1982.
It has been proposed as Publication No. -107389.

Furthermore, a supply port that opens downward is formed at the bottom of the grain supply tank, and a shutter that closes the supply port in two stages is rotatably disposed in the grain supply tank, and a locking hook is secured to the shutter. A two-stage shutter closing device for a grain supply tank is proposed in Japanese Utility Model Application Publication No. 154853/1983, which is provided with a hook that engages with the shutter, and is capable of performing two operations: partially closing and completely closing the shutter. .

Problems to be Solved by the Invention However, in the conventional shutter closing device, when loading grains from the discharge port of a storage tank into a weighing machine until reaching a set weight, the discharge port is fully opened, and a large amount of grain is placed at the set weight. A large amount of grain is thrown into a weighing machine etc. through the fully opened discharge port, and then the shutter closes the discharge port halfway, reducing the opening of the discharge port and gradually increasing the opening until the grain reaches the set weight. A small amount of grain is fed into a weighing machine etc. through the small outlet of the grain, and then, as soon as the grain reaches the set weight,
Since the shutter completely closes the discharge port, the mechanism for closing the discharge port in two stages by the shutter is complicated.

In addition, the one described in Publication No. 56-107389 is
One end of the actuating tool is pivotally connected to the discharge gate, and the engaging part of the engaging part is not engaged with the hook part of the operator, the end face of the actuating tool, or not with the actuating tool at all. The discharge port of the hopper is fully opened, partially closed, or completely closed by the discharge gate, and the discharge gate is opened at the same time as the engaging part of the engaging tool is released from the hook part of the actuating tool. Due to its own weight, it rotates toward the discharge port, and as the discharge gate rotates, the elongated hole of the actuator is guided by the fixed shaft from one end to the other, and the actuator rotates 90 degrees in the opposite direction to the discharge gate. Since it rotates, the momentum of the actuating tool is large, and it takes time for the discharge gate to rotate, and the end face of the actuating tool collides with the engaging part of the engaging tool, putting a large load on the side of the elongated hole, which causes thin walls. There is a risk that the side of the elongated hole may be deformed or damaged, and a loud impact noise will be generated.Furthermore, since the operating tool also moves with the ejection gate during the entire movement of the ejection gate, there are many moving parts, which increases the probability of an accident. It was the case that the price was higher.

Furthermore, in the device described in Japanese Utility Model Publication No. 53-154853, when opening the first stage shutter, it is necessary to rotate the locking hook in a direction that resists the weight of the shutter, so the operating force of the electromagnet is reduced. Since the hook part of the shutter collides with the tip of the bolt of the locking hook, it is necessary to manufacture each member to withstand a large impact load, and it also generates a large impact noise.

It is an object of the present invention to address the above-mentioned problems and to
The first pin of the connector engages with the locking part of the first elongated hole of the locking tool body, and the second pin of the holder engages with the lower end of the second long hole of the locking tool body. At the same time, the connector restricts the downward movement of the locking device body, and the protruding body of the shutter engages with the engaging portion of the locking device body, and the locking device body restricts the rotation of the shutter due to its own weight. Then, the discharge port of the storage tank is fully opened, and a large amount of grain is thrown into a weighing machine, etc. from the fully opened discharge port to almost the set weight, and the first pin of the coupling device is moved to the main body of the locking device. The shutter can be easily disengaged from the locking part while moving in the direction, thereby releasing the lock by the connecting tool of the locking device body, and at the same time the shutter rotates toward the discharge port of the storage tank due to its own weight. As the shutter rotates, the locking tool body engages with the first pin of the coupling tool and the second pin of the holder, while opening the first elongated hole and the second elongated hole of the locking tool main body. The first pin of the connector and the second pin of the retainer are moved downward along the longitudinal direction, and the first pin of the connector and the second pin of the retainer are connected to the first pin of the lock body.
engages with and stops at the upper ends of the elongated hole and the second elongated hole;
The shutter closes the discharge port of the storage tank halfway, and feeds the grain into a weighing machine, etc. through the discharge port with a small opening until the weight reaches the set weight, and the shutter is released by simply moving the locking device in a linear direction. Since the shutter stops at the small loading position, the shutter moves quickly, and the protruding body of the shutter moves while being engaged with the engaging part of the locking device body, and the movement of the locking device body is controlled by the two pins. This simultaneously stops the shock caused by the protruding body of the shutter, thereby reducing damage and impact noise caused by impact loads. At the same time, the shutter is rotated about the second pin of the holder as a fulcrum via the first pin, and at the same time, the shutter is released from the locking part of the locking tool body of the shutter protrusion, and the shutter is pushed into the discharge port by its own weight. To provide a shutter closing device capable of rotating toward the opposite direction and completely closing a discharge port with a shutter.

Means for Solving the Problems The shutter closing device of the present invention includes a discharge port that opens downward in the lower part of a storage tank, and a shutter that closes the discharge port in two stages in the storage tank is rotatable. an outwardly projecting body is provided on the end wall of the shutter, a holding body is provided on the side of the storage tank, a connecting device is provided on the holding body, and an upper part of the connecting device is provided. A reciprocating member is rotatably supported on the holder, a reciprocating member is pivoted to the lower part of the connector, a locking device body is disposed between the shutter and the connecting device, and a locking device body is provided with a locking device body. A first elongated hole is provided facing in the vertical direction, and a second elongated hole parallel to and of the same length is provided below the first elongated hole, and the lower end of the first elongated hole is connected to the shutter. A locking portion is formed by bending the opposite end to restrict the downward movement of the locking device body, and a first pin that fits into the first elongated hole is provided on the side of the connector closer to the shutter. established,
A second pin that faces the holding body and engages with the second elongated hole is provided, and an engaging portion that engages with the protrusion is formed on a side edge of the locking device main body. It has a structure.

Function: The first pin provided on the side of the coupling device connects the first pin provided on the main body of the locking device arranged between the shutter and the coupling device.
At the same time, the second pin provided at the lower part of the holding body engages with the locking part bent at the lower end of the elongated hole, and the second pin provided at the lower part of the first elongated hole is parallel to and of the same length. A protrusion that engages with the lower end of the elongated hole and restricts the downward movement of the locking device body, and is provided outwardly on the end wall of the shutter rotatably disposed in the storage tank. The locking device engages with the engaging part formed on the side edge of the locking device body, and the locking device body restricts the rotation of the shutter due to its own weight. It is fully opened and a large amount of grain is thrown into a weighing machine etc. from the fully opened discharge port to a value close to the set weight.

Furthermore, when the first pin of the connector is released from the locking portion of the locking device body, the locking of the locking device body by the connecting device is released, and the shutter is directed toward the discharge port of the storage tank due to its own weight. At the same time as the shutter rotates, the locking tool body engages with the first pin of the coupling tool and the second pin of the holder, and the first elongated hole and the second pin of the locking tool body 2, the first pin of the connector and the second pin of the holder are connected to the first pin of the locking body.
engages with the upper ends of the elongated hole and the second elongated hole, and restricts the downward movement of the locking tool body due to the rotation of the shutter by the first pin of the connecting tool and the second pin of the holder; While the protruding body of the shutter remains engaged with the engaging part of the locking device body, the shutter closes the discharge port of the storage tank halfway and discharges grains in small amounts at a small opening until the weight reaches the set weight. Pour a small amount from the outlet into a weighing machine, etc.

Furthermore, when the connector is rotated with respect to the holder by the reciprocating member, the holder main body rotates about the second pin of the holder via the first pin of the connector, and at the same time, the protrusion of the shutter The locking by the engaging part of the locking tool main body is released, and the shutter rotates toward the discharge port by its own weight, and the discharge port is completely closed by the shutter.

Embodiments Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

In FIG. 1, 4 is a storage tank for grains, and a discharge pipe is provided at the bottom of the storage tank 4.
The discharge pipe is formed with a discharge port 6 that opens downward, and the storage tank 4 is rotatably provided with a shutter 1 that closes the discharge port 6 in two stages. A protruding body 3 is provided on one side.

A holding body 9 is arranged on the side of the storage tank 4,
The holder 9 is provided with an L-shaped connector 5 , the upper part of the connector 5 is rotatably supported by the holder 9 , and the lower part of the connector 5 is pivotally connected to a reciprocating member 18 , which connects the shutter 1 . A locking device main body 2 is disposed between the connector 5 and the connecting device 5, and the locking device main body 2 is provided with a first elongated hole 12 facing in the vertical direction.
A second elongated hole 13 parallel to the second elongated hole 13 and having the same length is provided at the lower part of the locking tool body 2. A locking portion 14 for regulating movement is formed, and an engaging pin 8 serving as a first pin that fits into the first elongated hole 12 is provided on the side of the connector 5 closer to the shutter 1. At the bottom of the engaging pin 8 there is a second
An engaging pin 15 serving as a second pin that engages with the elongated hole 13 is provided, and an engaging portion that engages with the protrusion 3 and restricts the rotation of the shutter 1 is provided on the side edge of the locking tool body 2. 11 is formed.

The shutter 1 has an end wall with a curved surface having an arcuate cross section, fan-shaped support pieces are provided on both sides of the end wall, and a protrusion 3 is provided on the outside near the upper end of the end wall. Shaft 2 is attached to the discharge pipe of 4.
0 is fixed, the end of the support piece of the shutter 1 is rotatably supported on the shaft 20, and a stop plate 16 for regulating the rotation of the shutter 1 is arranged on the side of the discharge pipe of the storage tank 4. The shutter 1 is rotated toward the discharge port 6 of the storage tank 4 by its own weight.

A solenoid 17 is fixed at a fixed position on the side of the holding body 9 opposite to the storage tank 4.
A reciprocating member 18 is passed through the inside of the solenoid 17 , and a spring 19 is provided in the solenoid 17 to bias the reciprocating member 18 toward the locking tool body 2 . Solenoid 17
The reciprocating movement is performed by the biasing force of the spring 19 due to the stop of energization.

A connecting pin 7 is fixed to the tip of the reciprocating member 18, and a corner portion of the connecting tool 5 is rotatably supported on the connecting pin 7.

The holder 9 has a support pin 10 above the connecting pin 7.
is fixed, one end of the upper part of the connector 5 is rotatably supported on the support pin 10, and the connector 5 is rotated about the support pin 10 of the holder 9 as a fulcrum by the reciprocating movement of the reciprocating member 18 caused by the solenoid 17. It is becoming more and more popular.

An engagement pin 8 is fixed to the other side end of the connector 5, and the engagement pin 8 of the connector 5 is fitted into the first elongated hole 12 of the anchor body 2 by a solenoid 17. ing.

A locking device body 2 is provided between the shutter 1 and the connecting device 5.
is arranged, and the engagement pin 8 of the coupling tool 5 is inserted into the locking part 14 of the first elongated hole 12 of the locking tool main body 2,
An engagement pin 15 is fixed below the engagement pin 8 of the connector 5 near the lower end of the holder 9, and the engagement pin 15 of the holder 9 is fixed in the second elongated hole 13 of the anchor body 2. The upper part of the locking tool main body 2 is moved along the longitudinal direction of the first elongated hole 12 while engaging with the engagement pin 8 of the connecting tool 5, and the lower part of the locking tool main body 2 is held. It is adapted to be moved along the longitudinal direction of the second elongated hole 13 while engaging with the engagement pin 15 of the body 9 .

Next, the operation of this embodiment will be explained.

First, with the solenoid 17 de-energized, as shown in FIG. The pin 8 fits into the locking part 14 of the first elongated hole 12 of the locking tool main body 2, and the connecting tool 5
restricts the downward movement of the locking device main body 2, and the engagement pin 15 of the holding body 9
3, the engaging part 11 of the locking device main body 2 locks the protruding body 3 of the shutter 1, and the discharge port 6 of the storage tank 4 is completely opened, and a large amount of grain is loaded at a set weight. Pour a large amount into the weighing machine from the fully open discharge port 6.

Next, when the grains loaded into the weighing machine reach a set weight, the solenoid 17 is energized, and the solenoid 17 moves the reciprocating member 18 in the direction of the arrow in FIG. 2 against the biasing force of the spring 19. As the reciprocating member 18 moves, the connector 5 rotates clockwise in FIG. 2 about the support pin 10 of the holder 9 as a fulcrum,
The engagement pin 8 of the connector 5 is connected to the locking portion 1 of the locking device main body 2.
4 and moves to the first elongated hole 12 to release the locking of the coupling tool 5 of the locking tool main body 2 by the engagement pin 8.

When the engagement pin 8 of the connector 5 is disengaged from the locking portion 14 of the locking device main body 2 by the solenoid 17, the shutter 1 moves toward the discharge port 6 of the storage tank 4 with its own weight around the shaft 20 as a fulcrum. At the same time as the shutter 1 rotates counterclockwise in the figure, the protrusion 3 of the shutter 1
remains engaged with the engaging portion 11 of the locking tool main body 2, and the locking tool main body 2 engages the engaging pin 8 of the connector 5 and the engaging pin of the holder 9 as the shutter 1 rotates. 1
5, and moves downward along the longitudinal direction of the first elongated hole 12 and the second elongated hole 13 while engaging with the connector 5.
The engaging pin 8 is located at the upper end of the first elongated hole 12 of the locking tool main body 2, and the engaging pin 15 of the holder 9
is located at the upper end of the second elongated hole 13 of the locking tool main body 2, and the engaging pin 8 of the connecting tool 5 and the engaging pin 15 of the holder 9 are positioned at the upper end of the second elongated hole 13 of the locking tool main body 2. The engaging part 1 of the locking tool main body 2 restricts downward movement.
1 restricts the rotation of the shutter 1 due to its own weight, and the end wall of the shutter 1 partially closes the discharge port 6 of the storage tank 4, the opening degree of the discharge port 6 becomes smaller, and grains are removed little by little to match the set weight. Pour a small amount into the weighing machine through the small outlet 6 until the amount is reached.

After that, when the grains put into the weighing machine reach the set weight, the energization to the solenoid 17 is stopped, and the reciprocating member 18 is moved in the direction of the arrow in FIG. 3 by the urging force of the spring 19 of the solenoid 17, and the As the reciprocating member 18 moves, the tool 5 rotates counterclockwise in FIG. The holding body 9 is rotated clockwise in FIG. 3 using the engagement pin 15 as a fulcrum, and the protrusion 3 of the shutter 1 is released from the engagement part 11 of the engagement body 2, and the shutter 1 is released from its engagement. Due to its own weight, the shaft 20 is used as a fulcrum to rotate counterclockwise in FIG. 3 toward the discharge port 6 of the storage tank 4 until it hits the stop plate 16, and the discharge port 6 is completely closed by the shutter 1, allowing the grain to be discharged. Stop feeding the weighing machine from outlet 6.

Furthermore, when the shutter 1 is in a fully closed state where the discharge port 6 of the storage tank 4 is completely closed as shown in FIG. When the shutter 1 is rotated clockwise, the stop plate 16 is rotated clockwise in FIG.
engage with.

As the stop plate 16 of the shutter 1 rotates clockwise in FIG. while moving upward along the longitudinal direction of the first elongated hole 12 and the second elongated hole 13,
Engagement pin 8 of connector 5 and engagement pin 1 of holder 9
5 reaches the lower ends of the first elongated hole 12 and the second elongated hole 13 of the locking tool main body 2, the engaging pin 8 of the connecting tool 5
is fitted into the locking part 14 of the locking tool main body 2 by the biasing force of the spring 19 of the solenoid 17, and as shown in FIG. At the same time, the locking tool main body 2 is locked by the engaging pin 8 of the connecting tool 5.

Thereafter, by rotating the stop plate 16 counterclockwise in FIG. 4 to the side of the discharge pipe of the storage tank 4, the discharge port 6 of the storage tank 4 is fully opened, and the shutter 1 is fully opened. The discharge port 6 of the tank 4 is automatically returned from a fully closed state to a fully open state.

Effects of the Invention As described above, according to the shutter closing device of the present invention, the first pin of the connector engages with the locking portion of the first elongated hole of the locking device main body, and the holder The second pin of the shutter engages with the lower end of the second elongated hole of the locking device main body, the connecting device restricts the downward movement of the locking device main body, and the protruding body of the shutter engages with the lower end of the second elongated hole of the locking device main body. When engaged with the joint, the main body of the locking device restricts the rotation of the shutter due to its own weight, and the discharge port of the storage tank is fully opened, allowing the weighing machine to transfer a large amount of grain to a weight close to the set weight from the fully open discharge port. You can make a large investment in such things.

In addition, the first pin of the connecting tool can be easily removed from the locking part while moving in the moving direction of the locking tool body, thereby releasing the locking of the locking tool body by the connecting tool and allowing the shutter to be released. rotates toward the outlet of the storage tank due to its own weight, and at the same time, the main body of the locking device engages with the first pin of the coupling device and the second pin of the holder as the shutter rotates. The first pin of the connector and the second pin of the holder move downward along the longitudinal direction of the first elongated hole and the second elongated hole of the fastener body, and the first pin of the connector and the second pin of the holder are connected to the first pin of the fastener main body. The shutter engages with the upper end of the elongated hole and the second elongated hole and stops, and the shutter partially closes the outlet of the storage tank, so grains can be weighed little by little from the outlet with a small opening until the weight matches the set weight. It is possible to make a small injection into a machine, etc., and the shutter will stop at the small injection position simply by moving the locking device in a linear direction, so the shutter can be moved quickly and the protruding body of the shutter can be inserted into the locking device. Since the locking device moves while being engaged with the engaging portion of the locking device, and the movement of the locking device body is simultaneously stopped by two pins, the impact caused by the protruding body of the shutter is small, and therefore, damage due to excessive impact load and generation of impact noise are avoided. few.

Further, due to the rotation of the reciprocating member of the connector relative to the holder, the locking body rotates via the first pin of the connector and about the second pin of the holder, and at the same time, the protrusion of the shutter Since the locking by the engaging portion of the locking tool main body is released, the shutter rotates toward the discharge port by its own weight, and the discharge port can be completely closed by the shutter.

[Brief explanation of drawings]

Fig. 1 is a side view of a shutter closing device according to an embodiment of the present invention, Fig. 2 is a side view showing a state in which the outlet of the storage tank is partially closed, and Fig. 3 is a side view of the shutter closing device of the embodiment of the present invention. FIG. 4 is a side view showing the shutter returning from the fully closed position to the fully open position with respect to the discharge port of the storage tank. DESCRIPTION OF SYMBOLS 1... Shutter, 2... Locking tool main body, 3... Projection body, 4... Storage tank, 5... Connector, 6...
Discharge port, 7...Connection pin, 8...Engagement pin, 9...
... Holding body, 10 ... Support pin, 11 ... Engagement part,
12...first elongated hole, 13...second elongated hole, 14
... Locking part, 15 ... Engagement pin, 16 ... Stop plate, 17 ... Solenoid, 18 ... Reciprocating member,
19...spring, 20...shaft.

Claims (1)

[Claims] 1. A discharge port opening downwardly is formed in the lower part of the storage tank, and a shutter for closing the discharge port in two stages is rotatably disposed in the storage tank,
An end wall of the shutter is provided with an outwardly protruding body, a holder is disposed on a side of the storage tank, a connector is provided on the holder, and an upper part of the connector is connected to the holder. A reciprocating member is supported movably, a reciprocating member is pivotally attached to the lower part of the connecting device, a locking device main body is disposed between the shutter and the connecting device, and the locking device faces vertically toward the locking device main body. A first elongated hole is provided, and a second elongated hole parallel to the first elongated hole and having the same length is provided below the first elongated hole, and the lower end of the first elongated hole is curved toward the shutter. to form a locking part that restricts downward movement of the locking tool main body, a first pin that fits into a first elongated hole is provided on the side of the connector closer to the shutter, and The second
A shutter closing device characterized in that a second pin that engages with the elongated hole is provided, and an engaging portion that engages with the protrusion is formed on a side edge of the locking device main body.