JPH0230010Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a cloth hanging device for a filter press that has an extremely wide adjustment range for the expansion and contraction of the cloth. The present invention proposes a cloth hanging device that is highly effective when used in a so-called single cloth running type filter press.

Traditionally, the cloth used in filter presses expands and contracts significantly when it is dry and wet, and when it is new and when it is clogged. In particular, when clogged, the shrinkage can be as much as 3% or more, and for example, in the case of a 2m long cloth, it will shrink by 60mm or more. For this reason, in conventional machines, in order to cope with the shrinkage of the cloth, an adjustment screw is attached to the drive chain, and one end of the cloth is wound up with a torsion bar, but these methods are effective in the case of sludge that easily clogs. The adjustment limit is quickly exceeded, causing problems such as the fabric becoming abnormally tense and the fabric support bar bending. This idea was made in view of the actual situation, and it is possible to adjust a wide range according to the expansion and contraction of the cloth without impairing the drive function in a flexible drive system like a chain. This is the realization of a possible device.

Hereinafter, this invention will be explained in detail based on the attached drawings.The structure is such that a support rod 1 and an adjustment screw 2 are connected so as to be bent with each other, and the support rod 1 is used for driving cloth through a coil spring 3. The adjustment screw 2 is pivotably attached to the chain 4 of the fabric support bar 5, and the adjustment screw 2 is detachably connected to the end of the cloth support bar 5. In addition,
In another embodiment shown in FIG.
A cylinder 6 is provided so as to be fitted over the coil spring 3, and the upper end of the cylinder 6 is pivotally connected to the chain 4 for driving cloth, and a viewing window 7 and a scale 8 are provided in the longitudinal direction of the cylinder 6. To explain in detail the connecting part between the bar 5 and the adjustment screw 2, reference numeral 9 is a hanging fixture fixed to the end of the bar 5, which has an inverted L shape when viewed from the side, and has a horizontal part. An adjustment screw 2 is inserted into the slot from the side and can be fixed with nuts 10 and 11. Further, FIG. 3 shows an outline of the suspended state of the cloth, in which the pair of cloths 12, 12 provided between the plates are joined at their upper edges and connected to the upper support bar 13. The lower edge of each of the cages is connected to the cloth 1 between the adjacent boards.
2' and connected to the aforementioned bar 5. By rotating the drive wheels 14 in the forward and reverse directions, the upper support bar 13 and the bar 5 are raised and lowered in a seesaw manner. That is, when discharging the cake, the pair of cloths 12, 12 are lowered, and the cake is peeled off by making a U-turn around the guide rolls 15, 15.

The device according to this invention is constructed as described above, and when the cloth becomes clogged and shrinks, the tension is alleviated by the adjustment screw 2 and the coil spring 3. The adjustment device uses a coil spring 3 with a large extension force, so
In addition to having twice the adjustment range of conventional products, in particular, in this invention, the coil spring 3 and the adjustment screw 2 and the coil spring 3 and the chain 4 are connected to each other so as to be bendable, and the adjustment part has flexibility. Therefore, there is no problem in driving the cloth, and it also has the advantage that it can be easily accommodated within the thickness of the plate when the plate is closed.

As described above, the fabric hanging device according to this invention is twice as large as the conventional device, and can be adjusted to accommodate the expansion and contraction of the fabric, yet does not pose any hindrance to operation. Therefore, it is very effective when used on large machines where the fabric has a large expansion and contraction. As shown in Fig. 2, if the cylinder 6 equipped with the viewing window 7 and the scale 8 is fitted onto the support rod 1 and the coil spring 3, the horizontal height can be adjusted using the adjusting screw 2 when hanging the cloth. The height can be easily adjusted, and even if cake or washing water is scattered, it will not adhere to the coil spring 3 and the elasticity of the spring will not be impaired. Moreover, it is convenient because the amount of shrinkage of the cloth can be seen at a glance.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the main parts of the hanging device according to this invention, Fig. 2 is a front view showing the main parts of another hanging device, and Fig. 3 is a front view showing the main parts of the hanging device according to this invention. FIG. 3 is a schematic slope view showing the state. Explanation of symbols, 1...Support rod, 2...Adjustment screw, 3
...Coil spring, 4...Chain, 5...Bar,
6...Cylinder, 7...Peephole, 8...Scale.

Claims (1)

[Claims for Utility Model Registration] (1) The support rod 1 and the adjustment screw 2 are connected so as to be able to bend each other, and the support rod 1 is pivotally connected to a cloth driving chain 4 via a coil spring 3, and A fabric hanging device for a filter press, characterized in that an adjustment screw 2 is detachable from the end of a bar 5 for supporting the fabric. (2) A cylinder 6 is provided to be fitted over the support rod 1 and the coil spring 3, and the upper end of this cylinder 6 is pivotally connected to the chain 4 for driving the cloth, and a peephole 7 and a scale 8 are provided in the longitudinal direction of the cylinder 6. A cloth hanging device in a filter press according to claim (1) of the utility model registration, characterized in that the following is attached.