JPS605325B2 - Filter plate clamping device in filter press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a clamping device for a spanning plate in a filter press.

In conventional filter presses, the movable frame (loose head) for pressing a large number of negative plates against the first head side and the jack compression device are separated, and the loose head must be moved by hand when opening and compressing the frame. However, the heavy distance piece attached to the loose head must be raised and lowered by hand each time, resulting in poor safety and workability.

The present invention has been made in view of the above-mentioned points, and the present invention connects the loose head and the jack clamping device by means of a propulsion rod that is threadably supported by a hydraulic jack device equipped with a screw feeding mechanism and a hydraulic feeding mechanism. It is an object of the present invention to provide a clamping device that can omit a stance piece and improve work safety and efficiency.

Hereinafter, the present invention will be explained based on the drawings.

In FIGS. 1 to 3, reference numeral 1 denotes a oak board having handles 2 on both sides, and the oak board 1 is slidably supported by side bars 5, 5 bridged between the left and right first heads 3 and rear heads 4. There is.

6 is a loose head that tightens and fixes one group of many gangplanks,
It is hung from the side bars 5, 5 by rolling rollers 7 so that it can be hung freely.

8 is a propulsion rod with a screw 9 carved on its outer periphery, and the middle part thereof is a hydraulic jack device 10 fixed to the rear head 4.
At the same time, one end is rotatably attached to the loose head 6, a feed handle 11 is attached to the end of the shaft, and a lock nut 12 is screwed onto the outer periphery.

FIG. 4 is a sectional view showing the internal structure of the hydraulic jack device 10. 13 is a cylinder tube, and a jack head 16 is provided with an annular passage 15 formed between it and a holder 14 installed inside the cylinder tube, and an oil passage 17 provided on the externally open □ side of the annular passage 15 (on the right side in the figure). At the same time, the piston rod 18 is mounted inside so as to be non-rotatable and movable.

That is, the piston rod 18 has a slide head 19 at one end.
The head 19 is formed into a stepped shape with a threaded portion 20 formed on the other end, and the head 19 is inserted into the annular path 15 with iron, and the threaded portion 20 is formed on the other end.
01 Screw it onto the propulsion rod 8. Thus, a stepped portion 21 is provided at the center of the interior of the silling tube 13 as a stopper for the slide head 19, and a flange portion 22 having a screw hole 23 is provided in front of the stepped portion 21, and is screwed into the screw hole 23. While the rotation of the piston rod 18 is prevented by the rotation stopper screw 24, a spring 25 is interposed between the flange 22 and the slide head 19, and its elastic force biases the piston rod 18 and presses it toward the jack head 16. Configure as follows. That is, the propulsion rod 8 in the hydraulic jack device 1 is connected to the feed handle 11.
It has two functions: a screw feeding mechanism that moves forward and backward when operated by the jack head 16, and a hydraulic propulsion function that moves forward and backward using hydraulic pressure from a hydraulic device (not shown) connected to the jack head 16.

Reference numeral 26 denotes a transfer device for one group of horizontal plates, which is attached to a guide rail 27 disposed along the side bars 5, 5 so as to be slidable left and right.

5 and 6 show a plan view and a side view of the transfer device 26, respectively.

Reference numeral 28 denotes a base plate attached to the guide rail 27 via a bearing 29, and on one side of the base plate 28 there is a fork 30 having a hook-shaped engagement seat 31 for the handle 2 of the monkey plate 1 at its tip. A crank 34 whose base end is pivotally supported by a pin 32 and a crank lever 37 is provided on the other side is pivotally attached to a crankshaft 36, and the fork 30 and crank 34 are connected by a link 38.

That is, the link 38 has a hole 39 in the center, and the hole 39
A crank pin 35 protruding from a crank 34 is made loose at 9, and one end is supported by a pin 33 protruding from the tip of a fork 30. A pin 4 protruding from the end of the link 38
A tension spring 41 is inserted between the crank pin 35 and the crank pin 35. In addition, 42 is a stopper of the crank lever 37, and 43 is a stopper of the crank lever 37.
44 is a cover for the device 26, and the crank lever 37 is connected to the right and left leg transfer devices 26 by a connecting rod 45. FIG. 5 shows that the fork 30 engages with the handle 2 of the oak board 1 and the monkey board 1 is closed.
It shows a state where it is floating from the side bar 5.

That is, when the crank lever 37 is pushed down and rotated from the stop position A shown by the imaginary line to the operating position B shown by the solid line, the crank pin 35 rotates clockwise around the crankshaft 36, and the link 38 is pushed. As a result of being raised, the fork 30 rotates upward about the pin 32 and pushes up the handle.
Conversely, if the crank lever 37 is lifted and rotated, the fork 30 rotates counterclockwise and is disengaged from the clap 2. At this time, since a tension spring 41 is interposed between the pin 40 of the link 38 and the crank pin 35, the tension spring 41 is elastically reversed between the stop position and the operating position, and operates easily. Next, the compressing of Hosaka and its effect will be explained. (11 First, operate the feed handle 11 to rotate the propulsion rod 8, advance the loose head 6 toward the fast head 3, and feed the first group of monkey plates to a predetermined position.

When the propulsion rod 8 rotates, the piston rod 18 in the hydraulic jack system 10 is made unrotatable with respect to the cylinder tube 13, so the propulsion rod 8 moves forward by screw feeding. [2- Next, hydraulic pressure is applied to the device 101 via the jack head 16, and the piston rod 18 is moved toward the flange portion 22 against the elastic force of the spring 25, thereby performing high-pressure thinning of the first group of oak boards. .

'3' Finally, turn the lock nut 12 and
Fix it vertically.

This prevents the vertical mounting from loosening due to hydraulic pressure leakage.
It is possible to hold the first group of monkey plates in a compressed state and perform a stable sanding operation. After completing the crossing, remove the hydraulic pressure from the hydraulic jack device 10, perform the reverse operation in the order of ■→(3}→'11), move the loose head back toward the rear head 4, and use the frame opening device 26 described above to remove the thin plate. 1 in sequence.

As described above, the present invention has a large number of spanning boards slidably suspended from the side bars bridged between the first head catcher heads, and a loose head mounted on the core side bar to press the span boards. In a filter press designed to be tightened, one end is rotatably connected to the loose head, a propulsion rod with a feed handle attached to the pond end is provided, and the rear head screws and supports an intermediate portion of the propulsion rod. A hydraulic jack device is installed,
The hydraulic jack device forms an annular path between a cylinder tube to which a first head is fixed and a holder installed in the cylinder tube, and a hydraulic jack head is provided at an external entrance end of the annular path. A piston rod having a slide head formed at one end and a threaded portion screwed into the propulsion rod at the other end is mounted non-rotatably and slidably therein, and the slide head of the piston rod and the cylinder tube Since a spring is inserted between the piston rods and the piston rod is biased toward the jack head, the loose head is moved by hand when tightening or opening the destane piece as in the conventional method. This eliminates the work of raising and lowering the filter press, improving work efficiency and safety in filter press operation.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a plan view of a filter press to which the device of the present invention is applied, FIG. 2 is a side view of the same, FIG. 3 is a front view of the same, and FIG. 4 is a hydraulic jack. A longitudinal sectional view of the device 10, FIG. 5 is a plan view showing the operating state of the transfer device 26, and FIG. 6 is a side view of the same. 1...Hasashi board, 3...First head, 4. ．．・...Rear head, 5...Side bar, 6...
Loose head, 8... Propulsion rod, 10...
...Hydraulic jack device, 11...Feed handle,
13... Cylinder tube, 14...
Holder, 15... Annular path, 16... Hydraulic jack head, 18... Piston rod,
19...Slide head, 20...Screw part, 22...Spring. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1. A filter press in which a large number of filter plates are slidably suspended from a side bar bridged between a first head and a rear head, and the filter plates are compressed by a loose head slidably attached to the side bar. is rotatably pivoted to the loose head, and has a propulsion rod having a feed handle attached to the other end;
A hydraulic jacking device is provided on the rear head to screw and support an intermediate portion of the propulsion rod, and the hydraulic jacking device forms an annular path between a cylinder tube fixed to the first head and a holder installed in the cylinder tube,
A hydraulic jack head is provided at the external opening end of the annular passage, and a piston rod is provided within the annular passage, which is non-rotatable and slidable, and has a slide head at one end and a threaded portion screwed into the propulsion rod at the other end. 1. A device for clamping a filter plate in a filter press, characterized in that a spring is interposed between the slide head of the piston rod and the cylinder tube to urge the piston rod toward the jack head.