An automated plate and frame filter press

Abstract

This application relates to the field of plate and frame filter press technology, specifically an automated plate and frame filter press. The filter press body comprises a frame, plates and frames, hydraulic telescopic rods, and a conveying pipe. A hopper is welded to the bottom side of the frame. A shaking mechanism is also provided on the frame, comprising a track, an electric slide block sliding on the track, and a clamping assembly on the electric slide block. The clamping assembly is used to clamp the sides of the plates and frames. A drive mechanism is provided inside the electric slide block, comprising a drive shaft and a drive assembly on the drive shaft. During shaking, the fixed assembly in the drive mechanism utilizes the centrifugal force of part of the guide rod to automatically drive the abutment block to expand outward and press against the track, thereby firmly fixing the electric slide block on the track. This effectively counteracts the reaction force generated during shaking, ensuring the smooth operation of the entire shaking process and improving the operating accuracy and reliability of the equipment.

Description

Technical Field

[0001] This application relates to the field of plate and frame filter press technology, and in particular to an automated plate and frame filter press. Background Technology

[0002] Oxytetracycline, a broad-spectrum antibiotic widely used in medical and livestock farming, typically involves several key stages in its production process, including microbial fermentation, extraction, purification, and solid-liquid separation. In the oxytetracycline production process, after the plate and frame filter press completes the filtration process, oxytetracycline crystals adhere to the surface of the filter cloth. Due to the adhesive nature of the oxytetracycline crystals, coupled with the gravity of the filter cake itself, some of the filter residue is difficult to detach on its own and requires external cleaning. Incomplete cleaning of the filter residue not only reduces product yield but also affects the production efficiency of subsequent batches and the lifespan of the filter cloth. Therefore, how to efficiently and reliably remove the filter residue adhering to the plate and frame after filtration has become a pressing technical problem for oxytetracycline manufacturers.

[0003] Currently, some plate and frame filter presses are equipped with a shaking mechanism to vibrate or strike the plates and frames during the unloading process, thereby causing the filter cake to fall off. Existing shaking mechanisms typically include an electric slide and clamps mounted on the electric slide. After the plates and frames are clamped by the clamping components, the clamping components are moved back and forth by a drive device to achieve the shaking function.

[0004] However, in practical use, existing material shaking mechanisms have significant technical defects. During shaking, the high-frequency reciprocating motion generated by the drive device causes the electric slide to experience severe reaction forces, resulting in undesirable slight displacement or wobbling on the track. Over time, this not only exacerbates wear between the electric slide and the track, affecting positioning accuracy, but also makes it difficult for the clamping components to accurately align with the plate and frame, and in severe cases, even leads to clamping failure or equipment jamming. Furthermore, after shaking, the clamping components often cannot stop immediately due to inertia, generating aftershocks, which further negatively impacts the stability of the electric slide and subsequent positioning accuracy. Therefore, an automated plate and frame filter press is proposed to solve these problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies and avoid the impact of material shaking, this application provides an automated plate and frame filter press, which has advantages such as good stability and reduced vibration, thus solving the aforementioned problems.

[0006] This application provides an automated plate and frame filter press, which adopts the following technical solution: An automated plate and frame filter press includes a filter press body consisting of a frame, plates and frames, hydraulic telescopic rods and conveying pipes, wherein a feeding hopper is welded to the bottom side of the frame; The frame is also equipped with a material shaking mechanism, which includes a track, an electric slide block that slides on the track, and a clamping assembly that is mounted on the electric slide block. The clamping assembly is used to clamp the side of the plate frame. The electric slide block is internally equipped with a drive mechanism, which includes a drive shaft and a drive assembly mounted on the drive shaft. The clamping assembly is provided with an abutment plate extending into the electric slide block, and a first return spring is fixed on one side of the abutment plate. The drive assembly includes a mounting base, a guide rod slidably disposed inside the mounting base, and a ball bearing rotatably mounted on the end of the guide rod. The drive shaft drives the mounting base to rotate, generating centrifugal force on the guide rod, causing the ball bearing to abut against the abutment plate and, in conjunction with the deformation of the first return spring, drive the clamping assembly to reciprocate. The drive mechanism also includes a fixing component. There are four guide rods. The fixing component works in conjunction with two of the opposite guide rods to fix the electric slide.

[0007] Optionally: The number of plate frames is several, the hydraulic telescopic rod is fixed to the top side of the frame, and its output end is connected to the outer wall of the outermost plate frame. The spacing of several plate frames can be adjusted by extending and retracting the hydraulic telescopic rod.

[0008] Optionally: the track is fixed to the inner side of the frame, the electric slide has a chamber and a sliding opening respectively, the bottom side of the abutment plate extends through the sliding opening into the chamber, and the side of the first return spring away from the abutment plate is fixed to the inner wall of the sliding opening.

[0009] Optionally, the clamping assembly includes a base plate slidably mounted on the top side of the electric slide block, a guide rail is provided above the base plate, two electric clamps are slidably mounted in the guide rail, a lifting rod is fixed between the guide rail and the base plate, and the top side of the abutment plate is fixed to the lower surface of the base plate.

[0010] Optionally: The drive shaft bearing is installed inside the cavity, and a transmission component for driving the drive shaft to rotate is provided on the bottom wall of the cavity. The drive shaft is started by the transmission component and the drive assembly is driven to work, so as to realize the reciprocating adjustment of the clamping assembly.

[0011] Optionally: The four guide rods are equidistantly distributed around the mounting base. An extension groove is provided inside the mounting base. The end of the guide rod away from the ball is slidably connected to the extension groove. A second return spring fixed to the end of the guide rod is installed on the inner wall of the extension groove. The number and position of the extension groove and the second return spring are adapted to the four guide rods.

[0012] Optionally, the fixing assembly includes two abutment blocks and a sliding sleeve, wherein the outer wall of the top sliding sleeve is fitted with a first connecting rod hinged to two oppositely distributed guide rods, and the outer wall of the bottom sliding sleeve is fitted with a second connecting rod hinged to the two abutment blocks. The two abutment blocks are symmetrically distributed and slidably installed in the cavity, and the two sliding sleeves are rotatably connected.

[0013] Optionally: Anti-slip pads are fixed on the opposite sides of the two abutting blocks. When the two relatively distributed guide rods perform centrifugal action, the first connecting rod drives the two sliding sleeves to move upward, and then the second connecting rod pushes the two abutting blocks to move apart, so that the abutting blocks extend to the outside of the electric slide block and abut against the inside of the track, thereby fixing the electric slide block.

[0014] Optionally, the cavity is further provided with a buffer assembly located on the top side of the drive shaft. The buffer assembly includes a buffer element, two upper sliding sleeves, and a pressure booster element. The buffer element is used to buffer the abutment plate, so as to realize the rapid stopping of the abutment plate after the shaking is finished. The buffer component includes a telescopically connected sleeve and a buffer rod. A buffer spring is fixed to one end of the buffer rod inside the sleeve. The two upper sliding sleeves are connected to the two lower sliding sleeves in the same way. The upper sliding sleeve at the bottom is hinged to the other two oppositely distributed guide rods by a third connecting rod. The upper sliding sleeve at the top is hinged to the sleeve by a fourth connecting rod. A support seat for limiting the position of the sleeve is fixed on the inner top wall of the chamber.

[0015] Optional: The pressurizing component includes a piston, two valve pipes and a pumping pipe. The sleeve has a pressure chamber adapted to the piston. One end of the piston is fixed to the end of the buffer rod. The two valve pipes are fixedly connected to the outside of the sleeve. The pumping pipe is fixedly connected to one of the valve pipes, and its other end is fixed with a connecting pipe for driving the guide rod for maintenance. Both valve pipes are connected to the pressure chamber.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. In this invention, the driving mechanism, through the cooperation of centrifugal force and reset spring, drives the clamping component to move back and forth, thereby causing the plate and frame to vibrate at high frequency. Compared with the traditional manual knocking to clean the slag, the shaking force is uniform and the efficiency is high. It can quickly and thoroughly remove the solid filter slag on the plate and frame filter cloth, avoid filter slag residue clogging the filter cloth, and ensure the subsequent pressure filtration efficiency and filtration effect.

[0017] 2. In this invention, during material shaking, the fixed component in the drive mechanism uses the centrifugal force of part of the guide rod to automatically drive the abutment block to expand outward and press against the track, thereby firmly fixing the electric slide on the track, effectively offsetting the reaction force generated during material shaking, ensuring the smooth progress of the entire material shaking process, and improving the operating accuracy and reliability of the equipment.

[0018] 3. The present invention, by setting up a buffer component, utilizes the retraction action of another part of the guide rod when it stops rotating to drive the buffer component to quickly brake the clamping component that is still in inertial motion, thereby eliminating ineffective vibration and shortening the working cycle.

[0019] 4. In this invention, the braking process can also drive the pressurizing component to generate airflow, which is used to automatically blow or lubricate the key moving parts inside the equipment, thereby achieving efficient energy utilization and auxiliary maintenance of the equipment, and reducing manual maintenance costs. Attached Figure Description

[0020] Figure 1 This is a front view of the overall structure of this application; Figure 2 This is a perspective view of the filter press body of this application; Figure 3 This is a diagram illustrating the organization that submitted the information. Figure 4 This is a cross-sectional view of the clamping component of this application; Figure 5 This is a cross-sectional view of the drive mechanism of this application; Figure 6 This is a schematic diagram of the driving mechanism of this application; Figure 7 This is a cross-sectional view of the fixing component of this application; Figure 8 This application Figure 4 A magnified structural diagram of structure A is shown below; Figure 9 This is a cross-sectional view of the buffer component in this application.

[0021] Explanation of reference numerals in the attached figures: 1. Filter press body; 11. Frame; 12. Plate and frame; 13. Hydraulic telescopic rod; 14. Conveying pipe; 15. Discharge hopper; 2. Shaking mechanism; 21. Track; 22. Electric slide; 221. Chamber; 222. Slide opening; 23. Clamping assembly; 231. Base plate; 232. Guide rail; 233. Electric clamp; 234. Lifting rod; 235. Abutment plate; 236. First return spring; 3. Drive mechanism; 31. Drive shaft; 32. Transmission component; 33. Drive assembly; 331. Mounting base; 332. Guide rod; 333. Ball bearing; 33 4. Second return spring; 335. Extension groove; 34. Fixing assembly; 341. Abutment block; 342. Sliding sleeve; 343. First connecting rod; 344. Second connecting rod; 345. Anti-slip pad; 35. Buffer assembly; 351. Buffer component; 3511. Sleeve; 3512. Buffer rod; 3513. Buffer spring; 3514. Support seat; 352. Upper sliding sleeve; 353. Third connecting rod; 354. Fourth connecting rod; 36. Pressure boosting component; 361. Pressure chamber; 362. Piston; 363. Valve pipe; 364. Pumping pipe; 365. Connecting pipe. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-9 This application will be described in further detail.

[0023] Example 1, as Figure 1 and Figure 2 The image shows a first embodiment of the present invention, which provides an automated plate and frame filter press, including a filter press body 1. The filter press body 1 consists of a frame 11, plate frames 12, a hydraulic telescopic rod 13, and a conveying pipe 14. A hopper 15 for collecting filter residue or filtrate is welded to the bottom side of the frame 11. In this embodiment, there are several plate frames 12 arranged sequentially on the frame 11. The hydraulic telescopic rod 13 is fixed to the top side of the frame 11, and its output end is connected to the outer wall of the outermost plate frame 12. By extending and retracting the hydraulic telescopic rod 13, the several plate frames 12 can be pressed and released, thereby adjusting the spacing between the plate frames 12 and completing the filtration and unloading process.

[0024] Example 2 is the second embodiment of the present invention. In order to achieve efficient cleaning of the plate and frame 12 after unloading and prevent filter residue adhesion, a shaking mechanism 2 is also provided on the frame 11. Figure 1 , Figures 3-5 As shown, the material shaking mechanism 2 includes a track 21 fixed to the inner side of the frame 11, an electric slide 22 sliding on the track 21, and a clamping assembly 23 disposed on the electric slide 22. The clamping assembly 23 is used to clamp the side of the plate frame 12. Specifically, as shown... Figure 5 and Figure 8As shown, the electric slide 22 has a chamber 221 and a sliding opening 222 inside. It should be noted that an elastic shielding cloth needs to be installed inside the sliding opening 222. The elastic shielding cloth is connected to the clamping assembly 23 and moves back and forth with it. The setting of the sliding opening 222 not only limits the movement trajectory of the abutment plate 235, ensuring that it moves back and forth in a straight line, but also plays a role in sealing and dust prevention, preventing external filter residue or liquid from entering the chamber 221 and extending the service life of the internal drive mechanism 3.

[0025] like Figure 4 and Figure 8 As shown, the clamping assembly 23 includes a base plate 231 slidably mounted on the top side of the electric slide block 22. A guide rail 232 is provided above the base plate 231, and two electric clamps 233 are slidably mounted in the guide rail 232. A lifting rod 234 is fixed between the guide rail 232 and the base plate 231. Through the cooperation of the lifting rod 234 and the electric clamps 233, plate frames 12 of different sizes and positions can be accurately clamped. A stop plate 235 is fixed to the lower surface of the base plate 231. The bottom side of the stop plate 235 extends into the cavity 221 through the slide 222. A first return spring 236 is fixed to one side of the stop plate 235. The bottom side of the stop plate 235 is provided with an inclined surface to better drive the stop plate 235 to reciprocate. In this embodiment, the side of the first return spring 236 away from the stop plate 235 is fixed to the inner wall of the slide 222. Specifically, the first return spring 236 not only provides a return force for the stop plate 235 and the entire clamping assembly 23, enabling it to follow the drive assembly 33 in high-frequency reciprocating motion, but also keeps the clamping assembly 23 in an initial position when not in operation, avoiding accidental displacement caused by equipment vibration or misoperation, and improving the parking safety of the equipment.

[0026] The electric slide 22 has a drive mechanism 3 inside; such as Figures 4-7 As shown, the drive mechanism 3 includes a drive shaft 31, a drive assembly 33 mounted on the drive shaft 31, and a fixing assembly 34. The drive shaft 31 is mounted inside the chamber 221 via bearings. A transmission component 32 for driving the drive shaft 31 to rotate is provided on the bottom wall of the chamber 221. The transmission component 32 can be a micro motor and gear transmission.

[0027] like Figure 6 As shown, the drive assembly 33 includes a mounting base 331 fixed to the drive shaft 31, a guide rod 332 slidably disposed inside the mounting base 331, and ball bearings 333 rotatably mounted on the end of the guide rod 332. It should be noted that there are four guide rods 332, equidistantly distributed around the mounting base 331. This symmetrical arrangement ensures dynamic balance during rotation and reduces vibration during high-speed rotation. Figure 6As shown, the mounting base 331 has an extension groove 335 inside, corresponding to the number of guide rods 332. The end of the guide rod 332 away from the ball 333 is slidably connected to the extension groove 335, and a second return spring 334 fixed to the end of the guide rod 332 is installed on the inner wall of the extension groove 335. In use, the extension groove 335 provides precise radial sliding guidance for the guide rod 332, and the second return spring 334 ensures that the guide rod 332 can automatically retract when the drive shaft 31 stops, avoiding unnecessary interference with the abutment plate 235, and realizing automatic switching between drive and stop.

[0028] When the transmission component 32 starts the drive shaft 31 to rotate, the drive shaft 31 drives the mounting base 331 to rotate at high speed, generating centrifugal force. Under the action of centrifugal force, the four guide rods 332 overcome the elastic force of the second return spring 334 and are thrown outward along the extension groove 335 towards the outside of the mounting base 331. Since the bottom side of the abutment plate 235 is provided with an inclined surface, the ball bearings 333 better abut against the gap of the abutment plate 235. As the mounting base 331 continues to rotate, the radial position of the guide rods 332 changes periodically. Combined with the deformation of the first return spring 236, this drives the abutment plate 235 and the entire clamping assembly 23 to perform high-frequency reciprocating movement, realizing the shaking action of the plate frame 12.

[0029] Furthermore, the fixing component 34 is used in conjunction with two opposing guide rods 332 to fix the electric slide block 22 during the material shaking process. Figures 5-7 As shown, the fixing assembly 34 includes two abutment blocks 341 and two sliding sleeves 342. The outer wall of the top sliding sleeve 342 is fitted with a first connecting rod 343 hinged to two opposing guide rods 332. The outer wall of the bottom sliding sleeve 342 is fitted with a second connecting rod 344 hinged to the two abutment blocks 341. The two abutment blocks 341 are symmetrically distributed and slidably mounted within the chamber 221. The two sliding sleeves 342 are rotatably connected by a shaft or bearing, allowing them to move relative to each other.

[0030] When the drive shaft 31 rotates at high speed, the two relatively distributed guide rods 332 are centrifugally thrown outward. This causes the two sliding sleeves 342 to move closer or further apart axially via the first connecting rod 343. The upward movement of the sliding sleeves 342 pushes the two abutment blocks 341 in opposite directions (i.e., displaced) via the second connecting rod 344, causing the abutment blocks 341 to extend to the outside of the electric slide block 22 and abut tightly against the inner wall of the track 21. At this time, the anti-slip pads 345 on the surface of the abutment blocks 341 generate significant friction with the track 21, thus temporarily fixing the electric slide block 22 and preventing unnecessary displacement due to reaction force during the material shaking process, ensuring the accuracy and stability of the material shaking action.

[0031] Example 3 is an optimization based on Example 2, which aims to solve the problem of aftershock of the clamping component 23 caused by inertia after the shaking is completed, and to use the shaking power to achieve auxiliary maintenance of the equipment.

[0032] In this embodiment, a buffer assembly 35 located on the top side of the drive shaft 31 is also provided inside the chamber 221. Figures 6-9 As shown, the buffer assembly 35 includes a buffer element 351, two upper sliding sleeves 352, and a pressure booster 36. The buffer element 351 buffers the reciprocating contact plate 235 after the material shaking ends, allowing it to stop quickly and preventing ineffective vibration. The buffer element 351 includes a telescopically connected sleeve 3511 and a buffer rod 3512. A support seat 3514 is fixed on the inner top wall of the chamber 221 to limit the sliding movement of the sleeve 3511, and the sleeve 3511 slides through the support seat 3514. A buffer spring 3513 is fixed to one end of the buffer rod 3512 located inside the sleeve 3511. The two upper sliding sleeves 352 are connected to the two lower sliding sleeves 342 in the same way, i.e., they are rotatably connected to each other and can move relative to each other axially. Among them, the upper sliding sleeve 352 at the bottom is hinged to the other two oppositely distributed guide rods 332 by a third connecting rod 353, and the upper sliding sleeve 352 at the top is hinged to the sleeve 3511 by a fourth connecting rod 354.

[0033] When the drive shaft 31 decelerates and stops, the other two relatively distributed guide rods 332 retract under the action of the second return spring 334. This retraction, via the third link 353, moves the two upper sliding sleeves 352, which in turn, via the fourth link 354, push the sleeve 3511 downwards within the support seat 3514. This causes the buffer rod 3512 to abut against the abutment plate 235, which is reciprocating due to inertia. The buffer spring 3513 absorbs the kinetic energy of the abutment plate 235 during this process, achieving rapid braking.

[0034] Furthermore, such as Figure 9As shown, the pressurizing component 36 includes a piston 362, two valve pipes 363, and a pumping pipe 364. A pressure chamber 361 adapted to the piston 362 is formed inside the sleeve 3511. One end of the piston 362 is fixed to the end of the buffer rod 3512 located inside the sleeve 3511. The two valve pipes 363 are fixedly connected to the outside of the sleeve 3511 and are both connected to the pressure chamber 361. The pumping pipe 364 is fixedly connected to one of the valve pipes 363, and its other end is fixed with a connecting pipe 365 for maintaining the guide rod 332. A nozzle adapted to the extension groove 335 is installed on the bottom side of the connecting pipe 365. In use, when the buffer rod 3512 retracts into the sleeve 3511 under the push of the abutment plate 235, the piston 362 slides within the pressure chamber 361, compressing the air inside the chamber. When the buffering process ends and the buffer rod 3512 resets under the action of the buffer spring 3513, the piston 362 moves in the opposite direction, generating negative pressure in the pressure chamber 361. By properly setting the one-way valve in the valve pipe 363 and then connecting an external infusion pipeline for infusion, external air can be drawn in, or airflow containing lubricant or cleaning agent can be sprayed out through the pump pipe 364 and connecting pipe 365 when the piston 362 is compressed, automatically purging or lubricating components such as the drive shaft 31 and guide rod 332. This design cleverly converts the residual vibration energy at the end of the shaking process into maintenance power, improving the automation level and service life of the equipment.

[0035] Combined with appendix Figures 1-9 The working principle of the above embodiments is as follows: First, in the filter press stage, the distance between several plates and frames 12 is adjusted by the extension and retraction of the hydraulic telescopic rod 13, so that all plates and frames 12 fit tightly together to form a closed filter press chamber. Then, the material to be filtered is transported into the filter press chamber through the conveying pipe 14. Solid-liquid separation is achieved by utilizing the filter structure of the plates and frames 12 themselves. The filtered filtrate flows down through the gaps in the plates and frames 12 and is finally collected through the feed hopper 15 welded to the bottom side of the frame 11. The solid filter residue is trapped on the filter cloth of the plates and frames 12, thus completing the filter press operation. After the filter press is completed, the hydraulic telescopic rod 13 extends and retracts in the opposite direction to increase the distance between the plates and frames 12, in preparation for shaking and cleaning the slag. At this time, the shaking mechanism 2 is started, and the electric slide 22 on the track 21 slides along the track 21, driving the clamping assembly 23 on it to move to the target plate and frame 12. The lifting rod 234 in the clamping assembly 23 extends and retracts to adjust the height of the guide rail 232, so that the two electric clamps 233 slidably installed in the guide rail 232 are aligned with the side of the plate and frame 12. The electric clamps 233 are started and the plate and frame 12 are stably clamped, completing the clamping and positioning before shaking. After clamping and positioning are completed, the drive mechanism 3 starts and drives the drive shaft 31 to rotate through the transmission component 32. The drive shaft 31 drives the mounting seat 331 on it to rotate synchronously. The four guide rods 332, which are equidistantly distributed around the mounting seat 331, generate centrifugal force as the mounting seat 331 rotates. The guide rods 332 slide outward along the extension groove 335. The ball bearings 333, which are rotatably installed at the ends of the guide rods 332, extend out with the guide rods 332. The ball bearings 333 abut against the abutment plate 235. The abutment plate 235 moves in the opposite direction under the elastic force of the first return spring 236. This cycle continues. Through the continuous rotation of the drive shaft 31, the clamping assembly 23 moves back and forth, which in turn causes the clamped plate frame 12 to shake back and forth, causing the solid filter residue on the plate frame 12 to fall off. The fallen filter residue is collected through the discharge hopper 15, completing the shaking and cleaning operation. During the material shaking process, the fixing component 34 works synchronously: when the two relatively distributed guide rods 332 extend centrifugally, they drive the two sliding sleeves 342 to move upward through the first connecting rod 343. The sliding sleeves 342 push the two symmetrically distributed abutment blocks 341 to move away from each other through the second connecting rod 344, so that the abutment blocks 341 extend to the outside of the electric slide block 22. The anti-slip pad 345 on the opposite side abuts tightly against the inner side of the track 21, so as to achieve stable fixing of the electric slide block 22 during the material shaking process and avoid the impact force generated by the shaking causing the electric slide block 22 to shift. When the guide rods 332 reset, the sliding sleeves 342 move downward, and the abutment blocks 341 reset under their own weight and the pulling force of the connecting rod, releasing the fixing of the electric slide block 22, so that the electric slide block 22 can move to the next plate frame 12. After the material shaking is completed, the buffer assembly 35 is activated. When the other two relatively distributed guide rods 332 are reset, they drive the two upper sliding sleeves 352 to move upward through the third connecting rod 353. The upper sliding sleeves 352 push the sleeve 3511 to move through the fourth connecting rod 354, so that the buffer rod 3512 abuts against the abutting plate 235. The buffer rod 3512 compresses the buffer spring 3513 inside the sleeve 3511. The spring force buffers the inertia of the abutting plate 235, so that the abutting plate 235 stops quickly, avoiding the clamping assembly 23 from colliding with the electric slide 22 due to inertia, thus protecting the equipment components. Simultaneously, the pressurizing component 36 works in concert. When the buffer rod 3512 moves, it drives the piston 362 fixed at its end to move within the pressure chamber 361, generating pressure within the pressure chamber 361. This pressure is then delivered to the connecting pipe 365 through the valve pipe 363 and the pumping pipe 364. The connecting pipe 365 delivers lubricating medium to the connection between the guide rod 332 and the extension groove 335, enabling automatic maintenance of the guide rod 332, reducing component wear, and extending the service life of the equipment.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automated plate and frame filter press, comprising a filter press body (1) consisting of a frame (11), plate and frame (12), hydraulic telescopic rod (13), and conveying pipe (14), characterized in that: A hopper (15) is welded to the bottom side of the frame (11). The frame (11) is also provided with a shaking mechanism (2), which includes a track (21), an electric slide (22) sliding on the track (21), and a clamping assembly (23) provided on the electric slide (22). The clamping assembly (23) is used to clamp the side of the plate frame (12). The electric slide (22) is provided with a drive mechanism (3). The drive mechanism (3) includes a drive shaft (31) and a drive assembly (33) on the drive shaft (31). The clamping assembly (23) is provided with an abutment plate (235) extending into the electric slide (22), and a first return spring (236) is fixed on one side of the abutment plate (235). The drive assembly (33) includes a mounting base (331), a guide rod (332) slidably disposed inside the mounting base (331), and a ball bearing (333) rotatably mounted on the end of the guide rod (332). The drive shaft (31) drives the mounting base (331) to rotate, generating centrifugal force on the guide rod (332), causing the ball bearing (333) to abut against the abutment plate (235) and cooperate with the deformation of the first return spring (236) to drive the clamping assembly (23) to move back and forth. The drive mechanism (3) also includes a fixing component (34), and there are four guide rods (332). The fixing component (34) works in conjunction with two of the opposite guide rods (332) to fix the electric slide (22).

2. The automated plate and frame filter press according to claim 1, characterized in that: The number of the plate frames (12) is several. The hydraulic telescopic rod (13) is fixed to the top side of the frame (11), and its output end is connected to the outer wall of the outermost plate frame (12). The spacing of the several plate frames (12) can be adjusted by the extension and retraction of the hydraulic telescopic rod (13).

3. An automated plate and frame filter press according to claim 1, characterized in that: The track (21) is fixed to the inner side of the frame (11). The electric slide (22) has a chamber (221) and a slide opening (222) respectively. The bottom side of the abutment plate (235) extends through the slide opening (222) into the chamber (221). The first return spring (236) is fixed to the inner wall of the slide opening (222) on the side away from the abutment plate (235).

4. An automated plate and frame filter press according to claim 1, characterized in that: The clamping assembly (23) includes a base plate (231) slidably mounted on the top side of the electric slide (22), a guide rail (232) is provided above the base plate (231), two electric clamps (233) are slidably mounted in the guide rail (232), a lifting rod (234) is fixed between the guide rail (232) and the base plate (231), and the top side of the abutment plate (235) is fixed to the lower surface of the base plate (231).

5. An automated plate and frame filter press according to claim 3, characterized in that: The drive shaft (31) bearing is installed inside the chamber (221). A transmission component (32) for driving the drive shaft (31) to rotate is provided on the bottom wall of the chamber (221). The drive shaft (31) is started by the transmission component (32) and the drive assembly (33) is driven to work, so as to realize the reciprocating adjustment of the clamping assembly (23).

6. An automated plate and frame filter press according to claim 1, characterized in that: Four guide rods (332) are equidistantly distributed around the mounting base (331). An extension groove (335) is provided inside the mounting base (331). The end of the guide rod (332) away from the ball (333) is slidably connected to the extension groove (335). A second return spring (334) fixed to the end of the guide rod (332) is installed on the inner wall of the extension groove (335). The number and position of the extension groove (335) and the second return spring (334) are adapted to the four guide rods (332).

7. An automated plate and frame filter press according to claim 3, characterized in that: The fixing component (34) includes two abutment blocks (341) and a sliding sleeve (342). The outer wall of the top sliding sleeve (342) is fitted with a first connecting rod (343) hinged to two oppositely distributed guide rods (332). The outer wall of the bottom sliding sleeve (342) is fitted with a second connecting rod (344) hinged to the two abutment blocks (341). The two abutment blocks (341) are symmetrically distributed and slidably installed in the chamber (221). The two sliding sleeves (342) are rotatably connected.

8. An automated plate and frame filter press according to claim 7, characterized in that: Both of the two abutment blocks (341) are fixed with anti-slip pads (345) on the opposite side. When the two oppositely distributed guide rods (332) perform centrifugal action, the two sliding sleeves (342) are driven to move upward through the first connecting rod (343), and then the two abutment blocks (341) are pushed to move away from each other through the second connecting rod (344), so that the abutment blocks (341) extend to the outside of the electric slide (22) and abut against the inside of the track (21), thereby fixing the electric slide (22).

9. An automated plate and frame filter press according to claim 7, characterized in that: The chamber (221) is also provided with a buffer assembly (35) located on the top side of the drive shaft (31). The buffer assembly (35) includes a buffer (351), two upper sliding sleeves (352) and a pressure booster (36). The buffer (351) is used to buffer the abutment plate (235) to achieve a quick stop of the abutment plate (235) after the shaking is finished. The buffer (351) includes a telescopically connected sleeve (3511) and a buffer rod (3512). A buffer spring (3513) is fixed at one end of the buffer rod (3512) inside the sleeve (3511). The two upper sliding sleeves (352) are connected to the two lower sliding sleeves (342) in the same way. The upper sliding sleeve (352) at the bottom is hinged to the other two oppositely distributed guide rods (332) by a third connecting rod (353). The upper sliding sleeve (352) at the top is hinged to the sleeve (3511) by a fourth connecting rod (354). A support seat (3514) for limiting the sleeve (3511) is fixed on the inner top wall of the chamber (221).

10. An automated plate and frame filter press according to claim 9, characterized in that: The pressurizing component (36) includes a piston (362), two valve tubes (363) and a pumping tube (364). The sleeve (3511) has a pressure chamber (361) adapted to the piston (362) inside. One end of the piston (362) is fixed to the end of the buffer rod (3512). The two valve tubes (363) are fixedly connected to the outside of the sleeve (3511). The pumping tube (364) is fixedly connected to one of the valve tubes (363), and its other end is fixed with a connecting pipe (365) for driving the guide rod (332) for maintenance. Both valve tubes (363) are connected to the pressure chamber (361).

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