JPH0350961Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is for attaching the lower end rod of the filter cloth, which is inserted through the cylindrical part or folded part of the lower end of the filter cloth, to the lower side of the filter plate in a filter press. This invention relates to a filter cloth lower end rod attachment device.

(Prior Art) A conventional filter cloth lower end rod attachment device for attaching a filter cloth lower end rod inserted through the lower end of the filter cloth to the lower side of a filter plate is described, for example, in Japanese Patent Publication No. 47-44904. As shown in the figure, L-shaped brackets made of iron plates or cast iron with a thickness of about 5 mm are fixed to the left and right ends of the lower end of the filter plate in a facing manner, and holes are drilled in the vertical parts of the L-shaped brackets that protrude downward. Both ends of the lower end rod of the filter cloth were inserted into the hole, the ends of the filter cloth were made to protrude laterally from the vertical part of the L-shaped bracket, and lateral movement was stopped by means such as inserting a pin into this protrusion. .

(Problem that the invention attempts to solve) Conventionally, the L
Since the L-shaped bracket was used, the filter plate was heavy, and the vertical part of the L-shaped bracket was hard, so it was difficult to attach and remove the filter cloth by inserting the lower end rod into the hole in the vertical part and stopping its horizontal movement. It was a hassle.

This invention provides a filter cloth lower end rod attachment device that can reduce the weight of the filter plate and that allows the filter cloth lower end rod to be easily attached and detached.

(Means for solving the problem) A pair of left and right support plates made of leaf springs are provided at the lower end of the filter plate to protrude downward, and the end face in the vertical direction locks the end face of the lower end rod of the filter cloth to the support plates. a locking portion, a pair of front and rear locking pieces protruding inwardly from both front and rear ends of the end surface locking portion to lock the front and rear surfaces of the lower end rod of the filter cloth, extending inward from the lower end of the end surface locking portion; It consists of a lower surface locking part that locks the lower surface of the end of the filter cloth lower end rod, and an inclined guide piece that slopes outward and downward from the inner end of this lower surface locking part and guides the end of the filter cloth lower end rod. A locking means is provided.

(Function) Since the support plates are made of leaf springs, the distance between the left and right support plates can be easily widened by hand. Therefore, one end of the filter cloth lower end rod is inserted into the space surrounded by the lower surface locking part of one support plate and the front and rear locking pieces, and the other end of this filter cloth lower end rod is attached to the other support plate. When placed against the inclined guide plate and pressed upward, the other end of the lower end of the filter cloth slides on the inclined guide plate and pushes apart the left and right support plates, and the lower end of the filter cloth and the front and rear locking pieces engage the lower end of the other support plate and the front and rear locking pieces. The lower end rod of the filter cloth fits into the enclosed space and is supported between the left and right support plates. Then, by pushing open the left and right support plates, the filter cloth lower end rod can be easily removed.

(Example) Fig. 1 shows a first example, in which 1 is a filter cloth, 2 is a filter plate, and on the upper side edge of the filter plate 2, there are two left and right pairs made by bending a long and thin iron plate. Support metal fittings 3, 3
is fixed. The lower part of this support fitting 3 protrudes laterally in a U-shape to constitute a sliding arm 3a, and the filter plate 2 can freely slide on the left and right side rails 4 of the filter press via this sliding arm 3a. It is suspended in the. Further, the upper end of the support fitting 3 constitutes a filter cloth hanging arm 3b that protrudes above the filter plate 2 and suspends the filter cloth 1, and is connected from the upper end of this filter cloth hanging arm 3b via a spring 5. A folded filter cloth 1 is suspended by string loops 1a attached to its ears. In addition, filter cloth 1
One side of the fold hangs down along the surface of the filter plate 2, and the other side hangs down along the back side of the filter plate 2, and a plurality of interlocking short strips are formed by sewing on the lower ends of the front and back filter cloths 1, 1. One filter cloth lower end rod 6 is inserted into the cylindrical portion to connect the lower ends of the front and back filter cloths 1, 1.

Support plate 7 for attaching the above filter cloth lower end rod 6
is formed into a substantially L-shape by a plate spring, and as shown in detail in FIGS. A vertical base 7b extending downward from the end of the horizontal portion 7a along the side edge extension line of the filter plate 2; a horizontal step 7c formed by bending outward at the lower end of the vertical base 7b; an end surface locking portion 7d formed by bending downward from the outer end of 7c;
The front and rear locking pieces 7e are formed by bending inward the tongue pieces projecting on both the front and rear sides of the end surface locking portion 7d, and are formed by bending inward at the lower end of the end surface locking portion 7d. It includes a lower surface locking portion 7f and an inclined guide piece 7g formed by being bent outwardly at the end of the lower surface locking portion 7f.

In the above structure, the front and rear locking pieces 7e, 7e
The interval is set slightly larger than the diameter of the lower end rod 6 of the filter cloth, and the end surface locking portions 7 of the left and right support plates 7, 7
The distance between d and 7d is set to be slightly larger than the length of the lower end rod 6 of the filter cloth. Therefore, when one end of the filter cloth lower end rod 6 is placed on the lower surface locking portion 7f of one support plate 7, and the other end is applied to the inclined guide piece 7g of the other support plate 7 and pressed upward, the filter cloth The other end of the lower end rod 6 slides upward on the inclined guide piece 7g to push open the left and right support plates 7, 7, and the other end of the filter cloth lower end rod 6 engages the lower surface locking portion 7f and the front and rear locking pieces 7e, 7e. The lower end rod 6 of the filter cloth is fitted between the left and right support plates 7, 7. In addition, when removing the filter cloth lower end rod 6, it can be easily removed by pushing open the left and right support plates 7, 7 by hand. Also,
When the filter cloth lower end rod 6 is made of a pipe, it can be locked by inserting the lower surface locking portion 7f and the inclined guide piece 7g into its end.

4 and 5 show a second embodiment, in which the upper part of the support plate 10 is made vertical to form a mounting part 10a, and a long hole 10b for the bolt 11 is bored in this mounting part 10a. Its lower end forms a horizontal step part 10c, an end surface locking section 10d, front and rear locking pieces 10e, a narrow lower surface locking piece 10f, and an inclined guide piece 10g, and the lower surface locking piece 10f and the inclined guide piece The lower end 6 of the cylindrical filter cloth is set to have a narrow width of 10g.
A lower surface locking portion 10f and an inclined guide piece 10 are provided at the end of the
This allows insertion of g. This second
In this embodiment, the filter cloth lower end rod 6 can be placed above the lower surface locking portion 10f as in the first embodiment, and the lower surface locking portion 10f and the inclined guide are provided in the hollow end surface of the filter cloth lower end rod 6. The filter cloth lower end rod 6 can be supported by inserting the piece 10g. Note that since the mounting portion 10a is provided with a long hole 10b for inserting the bolt 11, the height of the filter cloth lower end rod 6 can be changed.

The third embodiment shown in FIGS. 6 and 7 has a narrow width 2 at the lower end of the end surface locking portion 10d of the second embodiment.
The book lower surface locking parts 10f, 10f and the inclined guide pieces 10g, 10g are provided in parallel, and the front and back filter cloths 1,
A total of two filter cloth lower end rods 6, 6, which are individually inserted into the bag portions at the lower ends of the filter cloth 1, are supported. In the case of the filter cloth lower end rods 6, 6 made of pipes, they can also be supported by inserting the lower surface locking portions 10f, 10f and the inclined guide pieces 10g, 10g.

In each of the above embodiments, a series of filter cloths 1, 1
As shown in Example 1, except that one of them is stretched on the front side of one filter plate 2 and the other on the back side, the upper fold is placed in the middle upper part of two adjacent filter cloths 2, 2 in the front and back. and place one filter cloth 1 on the front filter plate 2.
Then, the other filter cloth 1 can be stretched along the rear filter plate 2.

(Effect of the invention) In this invention, support plates made of leaf springs are provided at the lower left and right ends of the filter plate so as to protrude downward, and the left and right support plates have an end surface locking part, a pair of front and rear locking pieces, A locking means consisting of a lower surface locking portion and an inclined guide piece is provided,
The end of the filter cloth lower end rod is fitted into the space surrounded by the pair of front and rear locking pieces and the lower surface locking portion to support and lock the filter cloth lower end rod, which is different from the conventional method. The structure is simpler and lighter than the filter cloth lower end rod attachment device, and it can be supported even if the filter cloth lower end rod is hollow or solid, and there is an inclined guide plate below the lower surface locking part. , the other end of the filter cloth lower end rod can be secured by simply locking one end of the filter cloth lower end rod to one of the locking means and pressing the other end of the filter cloth lower end rod against the other inclined guide plate. It fits onto the lower surface locking part and is easily locked. By manually pushing open the left and right support plates, the filter cloth lower end rod can be easily removed.

[Brief explanation of the drawing]

Figure 1 is a front view of the first embodiment of this invention;
The figure is an enlarged view of the main part of Fig. 1, Fig. 3 is a sectional view taken along the - line in Fig. 2, Fig. 4 is a front view of the main part of the second embodiment, and Fig. 5 is the right side of Fig. 4. 6 is a front view of the main part of the third embodiment, and FIG. 7 is a sectional view taken along the line -- in FIG. 6. 1...filter cloth, 2...filter plate, 6...filter cloth lower end rod,
7, 10... Support plates made of leaf springs, 7d, 10d...
...End surface locking part, 7e, 10e...Front and rear locking pieces,
7f, 10f... lower surface locking part, 7g, 10g...
Inclined guide piece.

Claims (1)

[Scope of utility model registration request] In a filter cloth lower end rod attachment device of a filter press for attaching a filter cloth lower end rod inserted through a cylindrical portion or folded portion of the lower end of the filter cloth to the lower side of the filter plate, left and right springs made of leaf springs are attached to the lower end of the filter plate. A pair of support plates are provided to protrude downward, and a vertical end locking portion that locks the end surface of the lower end rod of the filter cloth to the support plate is provided. a pair of front and rear locking pieces that lock the front and rear surfaces of the lower end rod; a lower surface locking portion that extends inward from the lower end of the end surface locking portion and locks the lower surface of the end of the filter cloth lower end rod; A filter cloth lower end rod attachment device for a filter press, characterized in that it is provided with a locking means consisting of an inclined guide piece that is inclined outwardly and downwardly from the inner end of the lower surface locking portion and guides the end of the filter cloth lower end rod. .