JPH0367722B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a filter press that feeds filter plates by hooking and unloading a filter plate feeding device to a large number of filter plates arranged side by side. The present invention relates to a filter press having a filter cloth vibration device that vibrates a filter cloth.

Conventional technology Conventionally, after filtration, a large number of filter plates arranged between a fixed end plate and a movable plate of a filter press are sent to the retracted movable plate side or to the fixed end plate side by opening the plates. Starting with the first filter plate, feed the filter plates one by one by hooking and unhooking the feeding claw of the feeding device. In addition, in order to return the feed attachment to the original standby position after the last filter plate has been fed, a means for releasing the feed pawl relative to the filter plate is provided at the end of the machine frame on the opposite side of the fed filter plate. A feeding claw device is applied to this, and the filter is passed over the already fed filter plate without the feeding claws catching on the filter plate. In addition, as a device for feeding filter plates one by one, a cart is movably installed on a rail provided above the filter plate row, and a suspension body is suspended from a support shaft provided on the cart so as to be swingable in the filter plate feeding direction. A hanging device is provided at the lower end of the suspension body to hang the filter plate by hooking it onto the engaging part of the filter plate.
In addition, the suspension body is equipped with an abutment and a filter plate detection device, and the detection device detects when the suspension body reaches above the filter plate to be sent, and stops the traveling of the cart. , hang the hanging arm on the filter plate engaging part, hang the filter plate and send it, lower the hanging arm from the sent filter plate, release it, and drive towards the next filter plate again, sequentially loading the filter plate. A suspension feeding device is known (Japanese Patent Publication No. 51-18366). There is also known a filter plate feeding device (Japanese Patent Publication No. 44-3732) in which the arm for suspending and feeding the filter plate is composed of a threaded rod that moves up and down. In addition, as a filter cloth vibrating device for removing cake by vibrating the filter cloth, a piston rod of a piston device that moves in the opposite direction to the filter plate feeding direction above the filter plate array is attached with a concave and convex member and is caused to collide with the filter cloth hanging rod. Some remove the cake from the filter cloth. In addition, a frame is set up above the filter plate in the filter plate feeding device that runs along the filter plate row, and a cake peeling rod is raised and lowered from the frame toward the filter cloth surface between the filter plates to scrape off the cake attached to the filter cloth. A dropping device (Japanese Utility Model Publication No. 52-28282) is known.

Problems to be Solved by the Invention However, the filter press equipped with the above-mentioned conventional filter plate feeding device cannot accurately move the feeding claw or hanging arm to the filter plate located in the middle of a large number of filter plates arranged in a row. It is difficult to stop the movement and hang/unhook it. Therefore, if it becomes necessary to return the feed claw or hanging arm to one side during the filter plate feeding operation, move it close to the specified filter plate, then manually move it onto the specified filter plate, and then The hanging arm must be released from the feeding device so that it does not hang on the filter plate. Furthermore, if the feeding claw or the hanging arm is damaged, it takes a considerable amount of time and effort to send it back to the standby position at one end, disassemble it, and repair it. In addition, in order to feed two filter plates or to feed two or more filter plates at the same time, if an abutment is used in addition to the feed claw, and if the filter plate is of a suspended type, the feed claw or hanging arm should be moved to the specified filter plate. It cannot be smoothly attached and removed. Regarding the filter cloth vibrating device, the conventional vibrating device consisting of a concave and convex member requires a concave and convex hammer member with the necessary length and height for vibration, so it is difficult to incorporate this into a filter plate feeding device. It's impossible. In addition, the device that erects a frame on the filter plate feeding device requires space because the framework protrudes into the space above the filter plate row, and the framework is too large for the feeding device and cannot be compactly incorporated into the feeding device. . It also makes the filter press larger and the device more complicated.

Means for Solving the Problems The present invention aims to eliminate the disadvantages of the above-mentioned conventional filter press equipped with a filter plate feeding device. In the present invention, a telescoping drive device is fixed to a movable stage, and the extending end of a feeding arm of a filter plate extended from the telescoping drive device is guided by a guide portion of an overhanging guide frame whose base is fixed to the movable stage. In addition, the feed arm of the filter plate is connected to the guide frame side by a downward force spring that forces the feed arm downward toward the guide frame side against the extension of the telescopic drive device, and the feed claw of the filter plate is connected to the extended end of the feed arm. is rotatable and pivoted with a spring biased so that the distal end side of the feed claw protrudes from the extended end of the feed arm toward the distal end, and the telescopic body of the telescopic drive device is extended against the prone spring and the feed claw is hooked onto and removed from a predetermined grip part of the filter plate, the filter plates are sequentially fed, and the telescopic body of the telescopic drive device is moved back to move the feed pawl to a position where it does not hang on the filter plate.

In addition, a filter cloth vibrating device is fixed on a moving table in line with the above-mentioned telescopic drive device, and the vibrator connected to the filter cloth vibrating device is extended and held out under the feeding arm of the filter plate extended from the telescopic drive device to vibrate during plate opening. The child was positioned between the filter plate feeding arm and the filter cloth hanging rod belonging to the filter plate to be fed, and applied vibration to the filter cloth hanging rod to vibrate the filter cloth.

Function: The telescoping drive device is fixed to a movable platform that reciprocates on a guide rail stretched between the front and rear machine frames of the filter press, and the extended end of the feeding arm of the filter plate extended from the telescoping drive device is moved from the movable platform. Guidance will be given using the guide section of the overhanging guide frame. Further, the feed arm is connected to the guide frame side by a prone spring and placed in a prone position. At the standby position for feeding the filter plate, the telescopic drive device is extended against the prone spring, and the feed arm is brought to a position where the feed pawl pivotally supported at its tip engages the filter plate. Next, the moving table is moved to approach the filter plate to be fed, the feeding claw is placed on the filter plate, and the feeding claw is hooked around the filter plate gripping portion on the opposite side. At the same time, the extended end of the feed arm is guided and supported by the guide section of the guide frame. The moving table changes its movement direction to the filter plate feeding direction and moves to send the filter plate. The moving table that has sent the filter plate changes its direction of movement again and moves to send the next filter plate. In addition, after the filter plate has been fed or at a predetermined filter plate position, the telescopic drive device on the movable table is moved backward, or the spring force of the downward spring is used to keep the feed pawl in a position where it does not hang on the filter plate. is moved to a predetermined standby position and sent back.

In addition, the vibrator of the filter cloth vibrating device fixed on the movable table side by side with the telescopic drive device moves on the guide rail together with the telescopic drive device, and connects the filter cloth hanging rod and the filter plate feeding arm belonging to the filter plate to be fed. It is placed in between and passes over the filter cloth hanging rod. The vibrator vibrates continuously during movement or by stopping the filter plate feeding midway.

Embodiment The present invention will be explained by illustrating a case in which the present invention is moved on a guide rail hung between the front and rear machine frames of a filter press. The moving table 1 has rollers 2, 2 on both sides.
The rollers 2, 2 are mounted on grooves provided inside the guide rail 3 to enable reciprocating movement.
The guide rail 3 spans between columns 6 and 7 that stand up from the middle of the pillars 4 and 5 of the front and rear machine frames (Fig. 1). A piston device 8, which is a telescopic drive device, is fixed to the base plate of the movable table 1. Piston device 8
The piston rod 9 is extendable downward (see Figs. 2 and 3). Reference numeral 10 denotes a feed arm for the filter plate, the center of its horizontal bar is connected to the lower end of the piston rod 9, and its both extended ends are bent into an inverted L-shape and connected to the feed claw 1.
2 is pivoted. Further, a guide frame 11 is fixed and extended from the movable table 1 along the feed arm 10. Guide frame 11
Both ends of the feed arm 10 are bent into an inverted L shape to serve as guide portions, and guide the extended end of the feed arm 10. The intermediate part of the feed pawl 12 is rotatably fixed to the feed arm 10 by a shaft 13. One end of the feed claw 12 is pulled by a spring 14 hooked on a pin 15 set on the feed arm 10, and near the above-mentioned one end of the feed claw 12 is applied to a stopper 16 provided on the feed arm 10, so that the other end of the feed claw 12 is pulled. It is made to protrude toward the tip of the sending arm 10. In addition, a prone spring 19 is applied to a pin 17 set up on the extended end of the feed arm 10 and a pin 18 set up on the guide portion of the guide frame 11, so that both pins 1
7 and 18 are elastically connected, and the feed arm 10 is placed face down toward the guide frame 11. 20 is a reciprocating drive motor with a reducer for the moving table 1, which is connected to one shaft 2 of the rollers 2, 2.
1 and chain 22 (Fig. 3).

Further, a filter cloth vibrating device 23 is fixed to the movable table 1 in parallel with the piston device 8. Filter cloth vibration device 23
consists of a piston cylinder, the cylinder 24
The mounting portion of the movable table 1 is fixed to the base plate of the movable table 1.
The cylinder rod 25 is connected to the piston device 8 in FIG.
It is arranged side by side with the piston rod 9. The center portion of a vibrator 26 is connected to the tip of the rod 25. Both ends of the vibrator 26 are bent slightly horizontally and extended below the feed arm 10. Both tips 27, 27 of the vibrator 26 are located below the feed arm 10, and diaphragms 28, 28 are attached, respectively.

Reference numeral 30 indicates a filter plate, which is moved by placing its handle 31 on a side plate 32. Filter cloth suspension struts 33, 33 are erected on both ends of the handle 31, and suspension springs 35, 35 for suspending a filter cloth hanging rod 34 are attached to the tops of the struts 33, 33, respectively. The filter plate 30 is hung across a filter cloth hanging rod 34, and covers both sides of the filter plate 30. 37 is a movable plate, 3
8 indicates a filter plate tightening device.

In the filter plate feeding operation, the tightening device 38 is moved back to separate the movable plate 37 from the filter plate, thereby creating a certain open frame gap between the movable plate 37 and the filter plate 30. The telescopic drive device on the movable table 1 in the standby position is pushed into the prone position by the spring 19.
The feed claw 12 extends against the spring force of the filter plate 3.
Lower the feed arm 10 to the position where it hangs at 0. When the motor 20 on the movable table 1 is energized from an operation panel (not shown), the movable table 1 moves toward the first filter plate 30 to be fed, applies the feed pawl 12 to the handle 31, and attempts to move again. At this time, the limit switch 40 attached to the outside of the column 33 of the filter plate 30 and the limit switch 4 attached to the inside of the guide frame 11
1 act in conjunction with each other, and the rotation of the motor 20 is reversed. At the same time, the feed pawl 12 rotates around the shaft 13 and stretches the spring at one end, while the tip crosses over the handle 31 and opens the notch 3 on the opposite side.
Wrap around to 1'. Further, the spring 14 side of the feed claw 12 comes into contact with the stopper 16, and the rotation of the feed claw 12 is stopped. The moving table 1 moves in the filter plate feeding direction, and the feeding arm 10 sends the filter plate 30 to the movable plate 37. When the filter plate 30 is sent to the movable plate 37, a limit switch (not shown) operates, and the motor 20
rotation is reversed again. The feed arm 10 is a feed claw 12
is separated from the filter plate 30, and the filter plate 30 to be sent next
Similarly, the filter plates 30 are sequentially sent to the movable plate side. When the feed arm 10, which has finished feeding the last filter plate 30, approaches the terminal column 33', the limit switch 41 on the feed arm 10 and the column 33' are activated.
The rotation of the motor 20 is reversed by the limit switch 42 located therein. At the same time, a switch (not shown) communicates with the drive source of the piston device 8 on the moving table 1, the piston rod 9 retreats, and the feed arm 10
Raise it to its original position. The feed claw 12 leaves the position where the handle 31 is engaged, and the feed arm 10 moves to the initial standby position and is stopped by the stop signal.

In the present invention, the aforementioned limit switch 40 is attached to every other filter cloth hanging strut 33 or every few filter cloth hanging struts 33 as appropriate, and the aforementioned switch 40 and the switch 41 of the feed arm 10 are operated, and the piston By driving the device 8, it is possible to feed two filter plates or to push an appropriate number of filter plates of two or more at once. Further, the feeding of the filter plate is stopped midway, and the piston device 8 is moved backward at the stopped filter plate, and the spring force of the prone spring 19 is used to move the feeding pawl 12
Make sure to keep it in a position where it does not catch on the filter plate, and move the
can be moved to a predetermined standby position. Therefore, inspection and adjustment of the feeding device and other devices can be easily performed even during the filter plate feeding operation. Further, even if the piston device 8 is operated by mistake, the feed arm 10 is not lowered carelessly. Further, instead of the piston device 8, a hinge mechanism may be employed. Further, the installation position of the prone spring 19 is not limited to the same example, and may be installed at an appropriate position between the moving table 1 and the feed arm 10, or at an appropriate position on the left and right sides. The prone spring 19 may be of any type as long as it can bias the feed arm 10 toward the guide frame 11 side.

Also, during the above filter plate feeding operation, the piston rod 2
5 is expanded and contracted to vibrate the filter cloth hanging rod 34 with the diaphragm 28 of the vibrator 26 to shake off the cake attached to the filter cloth 36. When the filter cloth vibrating device vibrates the filter cloth 36, it is driven at an appropriate position in the middle of the gap between the filter plates. The diaphragm 28 is made of a rubber plate, a plastic plate, etc., which will not damage the filter cloth even if it repeatedly hits the filter cloth 36 on the filter cloth hanging rod 34.
Moreover, the width and length are such that the filter cloth hanging rod 34 does not come off even if it vibrates.

Effects of the Invention According to the configuration of the present invention explained above, the movable table can be easily stopped on a predetermined filter plate, the telescopic drive device can be retracted, and the feeding arm can be fed by the spring force of the prone spring. The claws can be reliably kept in a position where they do not catch on the filter plate, and even if the telescoping drive device is operated by mistake, the feed arm will not be lowered inadvertently, and the feed device and other devices can be inspected and adjusted. can be done safely and easily. In addition, the moving table is moved to a predetermined filter plate and stopped, and the telescopic drive device is expanded and contracted not only every filter plate, but also every two filter plates, or every appropriate number of filter plates, so that two filter plates are sent or two filter plates are moved. It is possible to feed an appropriate number of sheets or more. Further, even if the feed arm stops at any filter plate position, the feed pawl, spring, etc. can be easily replaced or repaired.

Further, according to the present invention, the filter cloth vibrating device is fixed on the movable table in line with the telescopic drive device, and the vibrator connected to the filter cloth vibrating device is extended and held out under the filter plate feeding arm, so that the vibrator can be held out during plate opening. is located between the filter plate feeding arm and the filter cloth hanging rod belonging to the filter plate to be fed, and applies vibration to the filter cloth hanging rod to vibrate the filter cloth, so that the device can be built into a compact size. It also has excellent operability and is extremely efficient.

[Brief explanation of drawings]

Fig. 1 is a side view of a filter press showing an embodiment of the present invention, Fig. 2 is an enlarged cross-sectional view taken along the line A-A in Fig. 1, showing the front of the filter plate and the feeding device, and Fig. 3 is a side view of a filter press showing an embodiment of the present invention. It is a side view which shows the place where a filter plate is sent. DESCRIPTION OF SYMBOLS 1...Moving table, 3...Guide rail, 8...Piston device, 9...Piston rod, 10...Feeding arm, 11...Guide frame, 12...Feeding claw, 14...
... spring, 19 ... prone spring, 23 ... filter cloth vibrating device, 25 ... piston rod, 26 ... vibrator,
30...filter plate, 31...filter plate handle, 34...filter cloth hanging rod, 36...filter cloth.

Claims (1)

[Claims] 1. A movable table is mounted on a guide rail extending between the front and rear machine frames of the filter press so as to be movable back and forth,
The feeding arm of the filter plate is extended from the telescoping body of the telescoping drive device provided on the moving table, and filter plate detection devices are provided on the feeding arm side and the filter plate side, and the telescoping drive device is extended and contracted to detect the extended end of the feeding arm. In a filter press in which the filter plates are fed sequentially by being hung on and removed from the filter plate, the telescopic drive device is fixed to the movable table 1, and
The extended end of the feed arm 10 of the filter plate 30 extending from the telescopic drive device is guided by the guide portion of the guide frame 11 whose base is fixed to the movable table 1 side and extends, and the feed arm 10 is connected to the telescopic drive device. Feeding arm 1 resists the extension of
0 is connected to the guide frame 11 side by a biasing spring 19 that biases the filter plate 30 toward the guide frame 11 side, and the feed claw 12 of the filter plate 30 is rotatable at the extended end of the feed arm 10, and the tip side of the feed claw 12 is The arm 10 is biased by a spring 14 and pivoted so as to protrude toward the distal end from the extended end of the arm 10, and the telescopic body of the telescopic drive device is extended against the bias spring 19 to move the feed claw 12 to a predetermined filter plate 30. A filter characterized in that the filter plates 30 are sequentially fed by hooking and unhooking them on the gripping part 31 of the filter plate 30, and the telescopic body of the telescopic drive device is moved back to release the feeding claw 12 to a position where it does not hang on the filter plate 30. press. 2. Fix the filter cloth vibrating device 23 on the movable table 1 in line with the telescopic drive device, and extend the vibrator 26 connected to the filter cloth vibrating device 23 to the underside of the filter plate feeding arm 10 extending from the telescopic drive device. , the filter plate 30 that the vibrator 26 attempts to send with the filter plate feeding arm 10 during plate opening
2. The filter press according to claim 1, wherein the filter press is located between the filter cloth hanging rod 34 belonging to the filter cloth 36 and vibrates the filter cloth 36 by applying vibrations to the filter cloth hanging rod 34.