JPH0719532Y2 - Tightening device for filter plate in filter press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improvement of a plate tightening device of a filter press.

[Conventional technology]

Conventionally, in the filter press, to close the plates and tighten them to form an excess chamber, a guide rail that supports and guides the plates is bridged between the left and right frames, and the hydraulic device installed in one frame Is pressed against the other frame and tightened. Japanese Examined Patent Publication No. 52-6903 is an example. Also, as shown in FIG. 6 of Japanese Patent Publication No. 62-28684, the parallel plates are divided into left and right groups with the central part as a boundary, and the plates are pressed from one movable head toward the other movable head. Some are tightened.

[Problems to be solved by the invention]

However, in any of the above-mentioned conventional ones, a tensile force is applied to the guide rails that support the plates when the plates are tightened, and a strong one is required in addition to supporting the weight of the plates. Block the sides. Therefore, it is an obstacle to the assembly and maintenance such as cloth replacement.

[Means for solving problems]

This invention solves the above-mentioned drawbacks of the conventional device, and the gist of the invention is that a number of plates are movably suspended on a guide rail, and these plates are closed. In a filter press in which an excess chamber is formed between plates and the plates are opened to discharge slag, two upper and lower tightening rods are provided laterally to the left and right plate rows along the plate rows. The base end of the tightening rod is pivotally attached to the short arm of the lever provided on the frame at the end of the plate row, and the other end of the tightening rod is movable at the end of the left and right plate rows. The head is detachably connected to the head, and the long arm of the lever provided on the frame is further connected to a tightening drive device for the frame provided with the lever.

[Action]

This invention is configured as described above, that is, the tightening rod is connected to the short arm of the lever provided on the central frame, and the tightening drive device is connected to the long arm. The tightening force due to can be doubled and transmitted to the tightening rod. However, since the tightening rod is used only for tightening the plates, a thinner one is sufficient as compared with the conventional product, the side of the plate row is also released, and it does not interfere with cloth maintenance or the like.

Hereinafter, the present invention will be specifically described with reference to the drawings.

〔Example〕

In the figure, reference numeral 1 is a guide rail bridged to the left and right frames 2, 3 is a plate suspended from the guide rail 2, 4 is a movable head provided at the end of the left and right plate blocks, 5 is a central frame, and 6 is a center A lever pivotally attached to the side of the frame 5, 7 is a hydraulic cylinder provided on the side of the central frame 6, 7a is a piston, and this piston 7a is the lever 6 described above.
It is loosely fitted and coupled to the long arm 6a.

Next, reference numeral 8 is a tightening rod provided along the plate row, and its base end is pivotally attached to the short arm 6b of the lever 6, and
The engaging plate 8a at the other end is movable head 4 as shown in FIG.
It is loosely fitted between the engaging projections 4a provided on the side portions of the. The engaging plate 8a of the tightening rod 8 and the engaging protrusion of the movable head 4
A piston 9a of an air cylinder 9 fixed to the movable head 4 is engaged with and disengaged from an engagement hole formed in the movable head 4. The structure of this engaging portion will be described in more detail with reference to FIG.
The air cylinder 9 is provided with a piston 9a at both ends thereof, and the piston 9a serves as an engagement pin and penetrates the engagement plate 8a and the engagement plate 4a, which are overlapped with each other, to couple the both. The through hole of the engagement plate 8a and the piston 9a are
Since the engagement plate 8a is slightly displaced during operation, it is loosely fitted.
Further, one of the coupling holes between the lever 6 and the piston 7a has a long hole or the like, and is loosely fitted and coupled. In the drawing, reference numeral 10 is a drive chain for opening and closing the plate, and 11 is support for the tightening rod 8.
The filter press shown in the figure is of a type that can be opened and closed at the same time on the left and right with a plate as the central boundary. This invention is constructed as described above, and in order to tighten the plate, the drive chain 10 is used to close the plate 3 in the state shown in FIG. 1, and the tightening rod 8 and the movable head 4 are connected to the piston. It is sufficient to extend the piston 7a of the hydraulic cylinder 7 of the central frame 5 after connecting with 9a. By doing so, the movable head 4 is pulled toward the central frame 5 by the tightening rod 8,
Each plate 3 can be tightened. Since the piston 7a is connected to the long arm 6a of the lever 6, a small force is sufficient for the tightening force attracted to the movable head 8, and the piston 7a can actuate the upper and lower levers 6 at the same time. With a minimum number of driving devices for the tightening rod 8, the structure is simple and the manufacturing cost is low. Further, since the tightening rod 8 is used only for tightening the plates 3, the tightening rod 8 is thinner than the conventional guide rail and does not block the side of the finished plate row.

[Effect of device]

As described above, the device according to the present invention requires only a small driving device as compared with the conventional tightening device, does not block the side of the plate, and assembles the machine body or replaces the cloth. The benefits of using the filter press are enormous, such as the convenience of maintenance.

[Brief description of drawings]

FIG. 1 is a schematic side view schematically showing a filter press according to the present invention. FIG. 2 is a schematic front view seen along the line AA in FIG. 1 ... Guide rail, 3 ... Plate, 4 ... Movable head,
5 ... central frame, 6 ... lever, 6a ... long arm, 6b ...
… Short arm, 7 …… hydraulic cylinder, 8 …… tightening rod

Claims (1)

[Scope of utility model registration request] 1. A large number of plates 3 are movably suspended on a guide rail 1, these plates 3 are closed to form an excess chamber between the plates, and these plates 3 are opened to discharge a slag. In the above filter press, the upper and lower two tightening rods 8 are provided on the side of the plate row along the plate row.
The base end of the tightening rod 8 is connected to the frame 5 at the end of the plate row.
The lever 6 provided on the lower arm 6b, and the other end of the tightening rod 8 is detachably connected to the movable head 4 provided at the other end of the plate row. The long arm 6a of the provided lever 6 is connected to the frame 5 provided with the lever 6.
A plate tightening device in a filter press which is connected to the tightening driving device 7.