JPH06278836A - Granular object supplying device - Google Patents

Abstract

PURPOSE:To feed particles having aspherical form surely, one by one. CONSTITUTION:A contacting part 11 for the leading piece 2a of particles laid on a transport path 3 is furnished at the end in moving direction of the particles 2, and on the way of the transport path, a stopper 5 is provided to press the second piece 2b of particles to the path 3. The contacting part 11 has a shaft 12, and when this shaft 12 is driven by a cylinder 14, the part 11 moves in the direction of separating from the leading piece 2a of particles. Therein a shutter 7 supported by a follower member 15 which is slidable with the shaft 12, also moves in the same direction so that the discharge port 3a is put in the open condition, and the leading piece 2a on the path 3 is discharged to a chute 9 from the discharge port 3a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a granular material supply device for supplying granular materials one by one.

[0002]

2. Description of the Related Art An example of a conventional granular material feeder is
This will be described with reference to FIG. The granular materials 2 sent out from the parts feeder 1 are conveyed in a line while being pressed against the conveyance path 3. Then, the granular material 2 transported on the transport path 3 stops when the leading granular material 2a comes into contact with the abutting portion 4 which is arranged opposite to the end portion in the moving direction. After that, the stopper 5 is lowered by the air cylinder 6, and the second granular material 2b following the leading granular material 2a is pressed against the transport path 3. Then, in this state, the shutter 7 moves the air cylinder 8
By this, the granular material 2a at the top is moved to the open state by passing through the discharge port 3a of the conveying path 3 and drops along the chute 9 to be supplied to a processing device (not shown). After that, the shutter 7
Moves forward to close the discharge port 3a, the stopper 5 rises, and the same operation is performed thereafter.

[0003]

By the way, when the granular material 2 is a non-spherical material, as shown in FIG. 3, when the second granular material 2b from the top is pressed against the conveying path 3 by the stopper 5, as shown in FIG. In some cases, the leading granular material 2a rides on the second granular material 2b and becomes a bridge state. When such a state occurs, even if the shutter 7 is opened, the leading granular material 2a cannot be caught in the chute 9 by being caught between the contact portion 4 and the subsequent granular material 2b. Therefore, the conventional feeder has a drawback that the granular material 2 cannot be stably fed and productivity is lowered.

It is an object of the present invention to provide a granular material supply device capable of surely supplying even an aspherical granular material one by one.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a transport path for transporting a granular material in a single row, and a leading particulate material in the transport path, which is arranged to face an end portion of the granular material in the moving direction, are provided. An abutting portion that comes into contact with the contact portion, a stopper that prevents movement of a second granular material following the granular material that is in contact with the abutting portion, and a discharge member that is provided in the transport path and guides the leading granular material to the outside of the transport path. In the granular material supply device having an outlet and a shutter for opening and closing the discharge port, a moving means for moving the contact portion along the moving direction of the granular material is provided.

[0006]

According to the present invention, the movement of the granular material conveyed in a single line on the conveying path is stopped when the leading granular material comes into contact with the contact portion. And 2 by the stopper
The shutter is opened with the movement of the second granular material blocked, and the discharge port is opened. At the same time, the contact portion is moved in the moving direction of the granular material.

[0007]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partially sectional front view showing a granular material supply device to which the present invention is applied. The same parts as those in FIG. 2 are designated by the same reference numerals and the description thereof will be omitted.

At the end of the moving path 3 of the granular material 2 in the moving direction (direction of arrow A), the contact surface 11 with the leading granular material 2a is provided.
The abutting portion 11 having a is arranged to face. This contact part 1
1, the shaft 12 is attached integrally. The shaft 12 is slidably supported by a U-shaped holder 13, and the holder 13 is moved by an air cylinder 14 in the same direction as the moving direction of the granular material 2 in the transport path 3. There is.

A driven piece 15 is slidably supported on the shaft 12, and the driven piece 15 and the shaft 12 are slidably supported.
By the spring 17 provided between the driven piece 1 and
5 is biased to the holder 13 side. In the driven piece 15,
A shutter 7 is integrally mounted, and the shutter 7 extends through the holder 13 to the discharge port 3a.

A through hole 11b is formed in the contact portion 11 in a direction orthogonal to the axis of the shaft 12, and the through hole 11b has a diameter smaller than the inner diameter of the through hole 11b supported by the fixing bracket 18. The shaft 19 is inserted.

Next, the operation of the above configuration will be described.

First, the granular material 2 delivered from the parts feeder 1 is conveyed while being pressed against the conveying path 3, and the granular material 2 is moved when the leading granular material 2a comes into contact with the contact portion 11. Will stop. After that, the stopper 5 is lowered by the operation of the air cylinder 6, and the second granular material 2b is transferred to the transport path 3
Press on. The operation up to this point is as usual.

Next, the piston rod of the air cylinder 14 contracts, and the holder 13 moves in the direction A in the figure. At the initial stage of this movement, the contact portion 11 and the shutter 7 move integrally in the same direction. Then, as the movement progresses and the shaft 19 comes into contact with the right side surface of the through hole 11b in the figure, the contact portion 11
Is stopped. However, even after the contact portion 11 is stopped, the driven piece 15 is moved against the biasing force of the spring 17 by the movement of the holder 13, so that the shutter 7 opens the discharge port 3a. As a result, the granular material 2a passes through the discharge port 3a, falls along the chute 9, and is supplied to a processing device (not shown). After that, the cylinder 14 extends to return the contact portion 11 to the original position, the shutter 7 closes the discharge port 3a, the stopper 5 moves up, and thereafter, the same operation is performed.

According to the above-mentioned embodiment, when the shutter 7 is moved to open the discharge port 3a, the contact portion 11 is moved in the direction A which is the moving direction of the granular material 2. There is. Therefore, even when the second granular material 2b from the beginning is pressed against the transport path 3 by the stopper 5, even if the leading granular material 2a rides on the second granular material 2b and is in a bridge state, The abutting part 11 is the first granular material 2
By moving in a direction away from a, the contact portion 1
A gap is formed between 1 and the leading granular material 2a, and the bridge state is released. Thereby, the granular materials 2 can be reliably supplied one by one, and the productivity can be improved.

Although the air cylinder 14 is used as the moving means of the contact portion 11 in the above-mentioned embodiment, it may be another drive source such as a motor.

Further, in the embodiment, the contact portion 11 and the shutter 7 are
Although and are configured to be moved by the same drive source, separate drive sources may be provided.

[0017]

According to the present invention, even a granular material having an aspherical shape can be reliably supplied one by one.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional front view showing a granular material supply device to which the present invention is applied.

FIG. 2 is a partial cross-sectional front view showing an example of a conventional granular material supply device.

FIG. 3 is a partially enlarged sectional view of FIG.

[Explanation of symbols]

 2 granular material 2a first granular material 2b second granular material 3 transport path 3a discharge port 5 stopper 6 air cylinder 7 shutter 11 contact part 11a contact surface 11b through hole 12 shaft 13 holder 14 air cylinder 15 driven piece 16 engagement Stop 17 Spring 18 Fixed bracket 19 Shaft

Claims (1)

[Claims] 1. A transport path for transporting granular material in a single row,
An abutting portion that is arranged opposite to the moving direction end of the granular material in the transport path and comes into contact with the leading granular material in the transport path, and a second granular material that follows the granular material that is in contact with the abutting portion. In the granular material supply device having a stopper for preventing movement, a discharge port provided in the transport path for guiding the leading granular material to the outside of the transport path, and a shutter for opening and closing the discharge port, A granular material supply device comprising a moving means for moving the granular material in a moving direction.