JPH0655299A - Briquette machine - Google Patents

Abstract

PURPOSE:To simplify an arithmetic circuit and to easily regulate a roll clearance by providing two shaft cylinder rods freely movable right and left whose one end is connected to a regulating means that the position can be regulated, and whose another end is made in contact with the pressure detector in a housing. CONSTITUTION:When a raw material is supplied between a moving side roll 3 and a fixing side roll 2, and a compression molding force is applied between both rolls, the compression molding force is transmitted to moving bearing boxes 5A, 5B, liners 7A, 7B further to pressure detectors 8A, 8B. Accordingly, the compression molding force can be detected with the pressure detectors 8A, 8B, and these signal are inputted in an arithmetic circuit 12 and the compression molding force can be detected. If temporarily a foreign substance is mixed between both rolls 3, 2 and an abnormal compression molding force is generated, the shock is transmitted to the two shaft cylinders 11A, 11B through the fixing bearing box, the clearance regulating spacer, the moving bearing box and the linear. Then the regulating nut is moved together with the two shaft cylinders, separated from the hydraulic cylinder and the shock is absorbed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure type briquette machine using a hydraulic cylinder.

[0002]

2. Description of the Related Art Conventionally, in order to obtain briquettes with stable quality, it has been widely practiced to detect and adjust the pressure molding force of a briquette machine, but the apparatus becomes abnormal due to the inclusion of foreign matter in the raw material. Since it may receive impact reaction force, it was necessary to give the molding equipment sufficient mechanical strength. Therefore, it is known to absorb this impact with a hydraulic cylinder to make the device compact (for example, Japanese Patent Publication No. 59-392).
No. 37). However, in this method, the pressure applied to the hydraulic cylinder is detected, and the pressure is applied to the fixed bearing box through the movable bearing box and liner housed between the housings and the pressure detector, and the reaction force between the bearings is detected. Then, the pressure applied to the hydraulic cylinder and the reaction force between the bearings are compared and calculated by a calculation device to detect the pressure molding force acting between the fixed side roll and the movable side roll. Therefore, the oil pressure detector, the pressure detector, the adder, and the differential amplifier are required, and the number of components is large and the arithmetic circuit is complicated. On the other hand, in this method, in order to adjust the clearance between both rolls, it is necessary to disassemble the housing and insert the pressure detector between the fixed bearing box and the liner, and the operation is complicated. The present invention has been made in view of the above problems, and includes a pressure molding force detection device, and absorbs the impact even if the device receives an abnormal impact reaction force due to the inclusion of foreign matter in the raw material. An object of the present invention is to provide a compact hydraulic briquette machine in which the number of components is reduced, the arithmetic circuit is simple, and the clearance between both rolls can be easily adjusted.

[0003]

In order to achieve the above object, a briquette machine according to the present invention comprises a fixed side roll pivotally supported on a housing by a fixed bearing box and a movable side pivotally supported on a movable bearing box. In a briquette machine in which the rollers are opposed to each other, a clearance adjusting spacer fixed to the fixed bearing box is provided between the pair of rolls, and pressure is detected in the movable bearing box via a liner. A hydraulic cylinder having a biaxial cylinder rod, which is movable left and right, in which one end is connected to an adjusting means capable of adjusting the position and the other end is brought into contact with the pressure detector. It is characterized by.

[0004]

By adopting the above-mentioned solution,
Abnormal impact reaction force due to mixing of foreign matter in raw material is absorbed,
The arithmetic circuit becomes simple and the clearance between both rolls can be easily adjusted.

[0005]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 and 2, the housing 1 of the briquette machine main body includes a fixed side roll 2 and a movable side roll.
Fixed bearing boxes 4A, 4B and movable bearing box 5
A and 5B support the shaft. The clearance between the pair of rolls 2 and 3 is between the fixed bearing boxes 4A and 4B and the movable bearing boxes 5A and 5B, and the clearance adjusting spacer 6A fixed to the fixed bearing boxes 4A and 4B. 6B, 6
It is set by C and 6D. The movable bearing box 5A,
5B through the liners 7A, 7B to pressure detectors 8A, 8
B is fixed. On the other hand, hydraulic cylinders 9A and 9B are fixedly installed at one end of the housing 1, and inside the hydraulic cylinders 9A and 9B, as shown in the cutaway sectional view of FIG. The biaxial cylinder rods 11A and 11B are built in, and the biaxial cylinder rod 11
A screw is cut at the left end of each of A and 11B, and the screw portion and the adjusting nuts 10A and 10B constitute a position adjusting means so that the position can be adjusted by screw rotation. The right ends of the biaxial cylinder rods 11A and 11B are in contact with the pressure detectors 8A and 8B. As shown in FIG. 3, the arithmetic circuit 12 is configured to output the signals detected by the pressure detectors 8A and 8B via the adder 13 and the amplifier 14.

In the thus constructed device, first, clearance adjusting spacers 6A, 6B, 6C, 6 are provided with no load between the movable side roll 3 and the fixed side roll 2.
D sets the clearance between the pair of rolls. At this time, the right ends of the two-axis cylinder rods 11A and 11B are adjusted by the adjusting nuts 10A and 10B so that the pressure detectors 8A and 8B are connected.
It is adjusted to the position where it contacts B, and there is no pressure detector output. Next, the biaxial cylinder rods 11A, 11B of the hydraulic cylinders 9A, 9B are filled with driving oil on both sides of the biaxial cylinder rods 11A, 11B with hydraulic devices (not shown) to fix the biaxial cylinder rods 11A, 11B by hydraulic pressure. After that, the movable side roll 3 and the fixed side roll
When the raw material is supplied between the rolls 2 and the pressure molding force is exerted between the two rolls, the pressure molding force is transmitted to the movable bearing boxes 5A, 5B, the liners 7A, 7B and the pressure detectors 8A, 8B. To be done. Therefore, the pressure molding force can be detected by the pressure detectors 8A and 8B, and these signals can be input to the arithmetic circuit 12 to detect the pressure molding force. In addition, if the movable side roll 3
If foreign matter is mixed between the fixed-side roll 2 and the fixed-side roll 2 and an abnormal press-molding force is generated, the impact is caused by the fixed bearing boxes 4A and 4A.
B, clearance adjusting spacers 6A, 6B, 6C, 6
D is transmitted to the biaxial cylinder rods 11A and 11B through the movable bearing boxes 5A and 5B and the liners 7A and 7B.
Then, the adjusting nuts 10A and 10B move leftward together with the biaxial cylinder rods 11A and 11B, and the hydraulic cylinder 9
The impact is absorbed by moving away from A and 9B.

[0007]

As is apparent from the above description, according to the present invention, the adjusting nut moves leftward together with the biaxial cylinder rod even when the apparatus receives an abnormal impact reaction force due to the inclusion of foreign matter in the raw material. As it moves and moves away from the hydraulic cylinder, the shock is absorbed and the device can be made compact. Further, since the arithmetic circuit is composed of two pressure detectors, one adder and one amplifier to detect the pressurization pressure, the number of parts can be reduced and the arithmetic circuit can be simplified. Further, the effect on the industry is remarkable, such as the fact that the roll clearance can be easily adjusted by adjusting the thickness of the roll clearance adjusting spacer and adjusting the rotation of the adjusting nut.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a partial cross-sectional side view showing an embodiment of the present invention.

FIG. 3 is a control block diagram for pressure detection of the present invention.

[Explanation of symbols]

 1 Housing 2 Fixed side roll 3 Movable side roll 4A, 4B Fixed bearing box 5A, 5B Movable bearing box 6A, 6B, 6C, 6D Clearance adjusting spacer 7A, 7B Liner 8A, 8B Pressure detector 9A , 9B Hydraulic cylinders 10A, 10B Adjustment nuts 11A, 11B Two-axis cylinder rod 12 Arithmetic circuit 13 Adder 14 Amplifier

Claims (1)

[Claims] 1. A housing 1 in which a fixed side roll 2 pivotally supported by fixed bearing boxes 4A and 4B and a movable side roll 3 pivotally supported by movable bearing boxes 5A and 5B face each other are incorporated. In the briquette machine, clearance adjusting spacers 6A, 6B, 6 fixed to the fixed bearing boxes 4A, 4B.
C and 6D are provided between the pair of rolls 2 and 3, and pressure detectors 8A and 8B are fixed to the side opposite to the fixed side roll 2 of the movable bearing boxes 5A and 5B via liners 7A and 7B. A hydraulic cylinder 9A having two axially movable biaxial cylinder rods 11A and 11B, one end of which is connected to adjusting means 10A and 10B capable of position adjustment and the other end of which is brought into contact with the pressure detectors 8A and 8B. , 9B are provided in the housing 1 to form a briquette machine.