JPH0534867Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a meandering correction device for a pressure belt in a belt press dehydrator.

[Prior art and its problems]

Conventionally, as a pressure belt meandering correction device, a fourth
As shown in the figure, a meandering correction roll 2 that rotates in contact with the pressure belt 1 is provided in a direction perpendicular to the running direction of the pressure belt 1, and one end of this meandering correction roll 2 is moved in the front-rear direction. Accordingly, there is a device in which the installation angle of the meandering correction roll 2 with respect to the pressure belt 1 is changed to move the pressure belt 1 in the left and right direction.

In this conventional device, when the pressure belt 1 snakes and the limit switch 3 installed on the right side of the pressure belt 1 is turned on, as shown in FIG.
The solenoid valve 4 is energized, the rod of the air cylinder 5 is pushed, the left end of the meandering correction roll 2 moves rearward (to the position indicated by the chain line), and the pressure belt 1 is moved to the left.

Next, when the limit switch 3 is turned OFF, the solenoid valve 4 is de-energized, the rod of the air cylinder 5 is pulled, the left end of the meandering correction roll 2 moves forward (to the position shown by the solid line), and the pressure belt 1 shifts to the right.

In this way, in the conventional device, the meandering of the pressure belt is corrected so that the pressure belt runs in the center.

However, the conventional device requires a power source such as an air cylinder for driving the meandering correction roll, and a control circuit thereof, which causes a problem that the cost of the device is high.

Therefore, the present invention aims to provide a meandering correction device for a pressure belt that does not require a power source such as an air cylinder for driving a meandering correction roll and a control circuit thereof.

[Means for solving problems]

The measures taken in this invention to solve the above problems are as follows.

That is, a pressure belt meandering detection section and a meandering correction section are provided on the downstream and upstream sides of the pressure belt of the belt press dehydrator, and the meandering detection section is configured to move in the left and right direction as the pressure belt meanders. A moving member is provided, and a meandering correction roll that rotates in contact with the pressure belt is provided in the meandering correction section in a direction perpendicular to the running direction of the pressure belt, and one end of the moving member and the meandering correction roll is driven by power. The rollers are connected by a transmission mechanism to move one end of the meandering correction roll in the front and back direction as the moving member moves in the left and right direction.

[Effect]

In the meandering correction device having the above structure, the stress of the moving member that moves in the left-right direction as the pressure belt meanders is transmitted to the meandering correction roll via the power transmission mechanism, and one end of the meandering correction roll is moved in the front-rear direction. to correct the meandering of the pressure belt.

Therefore, a power source such as an air cylinder for driving the meandering correction roll, a control circuit thereof, and other devices become unnecessary.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in Figure 1, the belt press dehydrator has the following features:
In the high-pressure dehydration zone A, the filter cloth 10 is sandwiched between pressure belts 11 for dewatering, and the pressure belts 11 run endlessly across a plurality of rollers 16. It's summery.

The pressure belt 11 is provided with a meandering detection section B in front of the high-pressure dewatering zone A, and a meandering correction section C is provided upstream of this meandering detection section B.

The meandering detection section B is provided with a moving member 12 that moves in the left-right direction as the pressure belt 11 meanders. This moving member 12 is the pressure belt 1
a guide rod 13 provided movably in a direction orthogonal to the running direction of the guide rod 1; a pair of guide plates 14 provided at both ends of the guide rod 13, respectively;
14', and when the pressure belt 11 meanders and moves in the left-right direction, the side surface of the pressure belt 11 comes into contact with the guide plates 14, 14', and the guide rod 13 is pressed. It is adapted to move in the left-right direction as the pressure belt 11 meanders. The distance between the pair of guide plates 14, 14' is slightly wider than the width of the pressure belt 11, and there is a predetermined play between the pair of guide plates 14, 14' and both sides of the pressure belt 11. is provided.

In the meandering correction section C, a meandering correction roll 15 that rotates in contact with the pressure belt 11 is installed on the pressure belt 1.
The vehicle is provided in a direction perpendicular to the traveling direction of the vehicle. One end of this meandering correction roll 15, in the illustrated embodiment, the right end in the running direction is swingably supported, and by moving the other end in the front and back direction, the meandering of the pressure belt 11 can be corrected. The installation angle of the roll 15 can be changed.

The center of the guide rod 13 of the moving member 12 and the other end of the meandering correction roll 15, that is, the left end in the running direction in the illustrated embodiment, are the power transmission consisting of a transmission rod 17, a belt 18, and a pulley 19. When the movable member 12 is connected by a mechanism and moves in the left-right direction, the stress is transmitted to the other end of the meandering correction roll 15 by the power transmission mechanism, and the other end of the meandering correction roll 15 moves in the front-back direction. , pressure belt 11
The installation angle of the meandering correction roll 15 relative to the position is changed.

For example, as shown in FIG.
is meandering, and the pressure belt 1 is detected at the meandering detection section B.
1 moves to the left with respect to the running direction, the guide rod 13 comes into contact with the left guide plate 14 on the left side surface of the pressure belt 11 and moves to the left. This leftward movement of the guide rod 13 is transmitted to the transmission rod 17, which rotates clockwise around the rotation shaft 20, and this rotational force is applied by the belt 18 and pulley 19 in a meandering manner. It is transmitted to the other end of the correction roll 15, and the other end of the meandering correction roll 15 moves rearward. Along with this, the pressure belt 11 in contact with the meandering correction roll 15 moves to the left with respect to the running direction, and the pressure belt 11, which had been shifted to the left, moves to the right in the meandering detection section B. The pressure belt 11 runs in the center, and the meandering of the pressure belt 11 is corrected as shown in FIG. Return to position.

〔effect〕

As described above, this invention corrects the meandering of the pressure belt by driving the meandering correction roll of the meandering correction section using the force in the left and right direction applied from the pressure belt in the meandering detection section. Therefore, unlike the conventional method, there is an advantage that a power source such as an air cylinder for driving the meandering correction roll and a control circuit thereof are not required.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a belt press dehydrator equipped with a meandering correction device according to this invention, FIGS. 2 and 3 are partial vertical sectional views of the same, and FIG. 4 is a schematic diagram of a conventional example. 11... Pressure belt, 12... Moving member, 15
... Meandering correction roll, 17... Transmission rod, B... Meandering detection section, C... Meandering correction section.

Claims (1)

[Scope of utility model registration request] A pressure belt meandering detection section and a meandering correction section are provided on the downstream and upstream sides of the pressure belt of the belt press dehydrator, and the meandering detection section includes a moving member that moves in the left-right direction as the pressure belt meanders. A meandering correction roll that rotates in contact with the pressure belt is provided in the meandering correction section in a direction perpendicular to the running direction of the pressure belt, and the moving member and one end of the meandering correction roll are connected to a power transmission mechanism. As the movable member moves in the left-right direction, one end of the meandering correction roll is moved in the front-back direction, and the pressure belt of the meandering correction section is moved in the opposite direction to the moving direction of the pressure belt of the meandering detection section. A meandering correction device for a pressure belt in a belt press dehydrator, characterized in that the pressure belt is moved in a direction.