A cylindrical soft filter element rotary cutting experimental equipment based on ultrasonic cutting

Abstract

The application belongs to the technical field of filter core cutting, and discloses a cylindrical soft filter core rotary cutting experimental equipment based on ultrasonic cutting, which comprises an equipment rack, an ultrasonic rotary cutting mechanism, an in-out material conveying mechanism, a rotary clamping mechanism and a material receiving tray. The ultrasonic rotary cutting mechanism drives the ultrasonic transducer and the disc cutter to rotate through a first rotary motor, and realizes efficient cutting in combination with ultrasonic vibration; the in-out material conveying mechanism drives the rotary clamping mechanism and the filter core to move forward and backward, realizing automatic feeding and positioning; the rotary clamping mechanism is adapted to filter cores with different diameters through a variable-diameter flange and locking screws, and is driven to rotate by a second rotary motor, realizing uniform feeding and cutting. The application integrates ultrasonic cutting and mechanical rotary cutting, has the advantages of high cutting precision, high automation degree, strong adaptability, safe operation and the like, and is suitable for experimental research and precise cutting of PTFE or semi-fluorine material cylindrical soft filter cores.

Description

Technical Field

[0001] This invention relates to the field of filter element cutting technology, and in particular to an ultrasonic-based rotary cutting experimental device for cylindrical soft filter elements made of PTFE (polytetrafluoroethylene), semi-fluorinated (PP+PTFE), PA (polyamide), or PET (polyester), suitable for precision cutting and experimental research of soft filter elements in industries such as chemical, pharmaceutical, and food. Background Technology

[0002] PTFE filter elements are widely used in the field of high-purity media filtration due to their excellent chemical stability, high temperature resistance and filtration accuracy. However, PTFE material is soft and has no rigid internal support structure, which makes it prone to the following problems in the traditional mechanical cutting process: (1) Low cutting accuracy: It is difficult to control the cutting pressure and feed speed by manual or ordinary mechanical cutting, resulting in poor cut flatness (usually >0.5mm), severe extrusion deformation (>0.2mm), and obvious stringing (>0.5mm), which affects the sealing performance and service life of the filter element; (2) Low efficiency: Manual loading, unloading, centering and clamping operations are time-consuming and labor-intensive, which cannot meet the needs of batch experiments or small-batch trial production; (3) Poor adaptability: Traditional equipment is difficult to adapt to filter elements with different diameters (e.g. 63mm~83mm) and cutting widths (e.g. 220mm~280mm), and changing fixtures is complicated and the adjustment time is long; (4) Unstable cut quality: Due to the softness of the filter element material, traditional cutting tools are prone to causing burrs, deformation or damage to the internal structure of the cut, which affects the accuracy of filtration performance testing.

[0003] Furthermore, while existing ultrasonic cutting technology has improved cutting quality to some extent, it still suffers from the following shortcomings: inaccurate control of ultrasonic scalpel amplitude, unstable filter element fixation during cutting, low degree of automation, and inability to achieve synergistic effects between rotary cutting and ultrasonic vibration. Therefore, there is an urgent need for a high-efficiency, high-precision experimental device with automatic tool setting, ultrasonic cutting, adaptive clamping, rotary feeding, and integrated dust removal functions to solve the aforementioned technical problems. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the prior art and provide an experimental device for rotary cutting of cylindrical soft filter cartridges based on ultrasonic cutting. By combining ultrasonic cutting with rotary mechanical cutting, an integrated cutting operation with high efficiency, high precision and strong adaptability is achieved.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This invention provides an experimental device for rotary cutting of cylindrical soft filter cartridges based on ultrasonic cutting, comprising a frame and an ultrasonic rotary cutting mechanism, a feeding and discharging conveying mechanism, a rotary clamping mechanism, and a receiving tray mounted on the frame, wherein:

[0007] The ultrasonic rotary cutting mechanism is laterally arranged at the rear end of the mounting plate on the equipment frame. It includes an ultrasonic transducer and a disc cutter fixedly arranged at the right end of the ultrasonic transducer. The ultrasonic transducer is connected to the first rotary motor via a first synchronous belt.

[0008] The feeding and discharging conveying mechanism is longitudinally arranged at the front end of the mounting platform. Its front and rear ends are respectively set as feeding stations and cutting stations. The disc cutter and the receiving tray are arranged on one side of the cutting station at the rear end. The rotating clamping mechanism is fixedly arranged horizontally on the movable carrier plate that can move back and forth on its top.

[0009] The rotary clamping mechanism includes a rotary sleeve for clamping the filter element to be cut. The left and right ends of the rotary sleeve are respectively mounted on a support plate by bearings. Locking screws for locking the filter element to be cut are threaded on both ends. The middle part is connected to a second rotary motor through a second synchronous belt.

[0010] Preferably, the equipment frame includes a lower frame, an upper frame disposed above the lower frame, and operation buttons disposed at the top front end of the lower frame, wherein:

[0011] The mounting platform is provided on the top of the lower frame, and an ultrasonic scalpel driver connected to the ultrasonic transducer is provided in the cabinet below it.

[0012] The upper frame is fixedly installed on the rear side of the mounting platform, and its lower front side has an inlet / outlet window for installing the inlet / outlet conveying mechanism, the rotary clamping mechanism and the receiving tray.

[0013] There are two operation buttons, which are respectively located on the mounting plates on the left and right sides of the front loading station of the feeding and discharging mechanism, and are electrically connected to the first rotary motor and the second rotary motor respectively.

[0014] Preferably, the ultrasonic rotary cutting mechanism includes a support frame, an ultrasonic transducer, a vertical plate, a disc cutter, and a first rotary motor, wherein:

[0015] The support frame is fixedly installed on the left side of the rear end of the mounting platform, and a number of vertical plates arranged at left and right intervals are installed at its front end.

[0016] The ultrasonic transducer is rotatably mounted on the corresponding vertical plate via several bearings, and the disc cutter is fixedly mounted on its right end.

[0017] The first rotary motor is fixedly installed at the rear end of the support frame, and its output shaft is connected to the outer periphery of the ultrasonic transducer via the first synchronous belt.

[0018] Preferably, the ultrasonic transducer and the disc cutter are arranged coaxially, with their axes parallel to the filter element to be cut that is clamped and installed on the rotary clamping mechanism, and at the same horizontal height.

[0019] Preferably, the feeding and discharging conveying mechanism includes a linear guide rail, a movable slider, a movable carrier plate, a lead screw nut, a transmission lead screw, and a feeding and discharging motor, wherein:

[0020] The linear guide rail consists of two rails, arranged at a left-right interval. The rails are longitudinally positioned at the left end of the mounting platform, and two movable sliders are slidably mounted on them.

[0021] The four bottom corners of the movable carrier plate are respectively fixedly connected to the corresponding movable sliders, and the lead screw nut is fixedly installed at the bottom of its front end.

[0022] The front and rear ends of the transmission screw are respectively mounted between the left and right linear guides via bearings with mounting seats, and the screw nut is threaded onto it.

[0023] The feed motor is fixedly mounted on the mounting plate between the rear ends of the two linear guide rails, and its output shaft is connected to the transmission lead screw shaft through a coupling.

[0024] More preferably, the feeding and discharging conveying mechanism further includes stops fixedly installed at the front and rear ends of each of the linear guide rails, and the inner sidewall of the linear guide rails is fixedly provided with buffer pads corresponding to the front and rear ends of the moving carrier plate.

[0025] More preferably, the feeding and discharging conveying mechanism further includes a displacement detection plate, a sensor mounting plate, and a displacement sensor, wherein:

[0026] The displacement detection plate has a zigzag structure, with one end fixedly installed at the lower end of the left side wall of the rotary clamping mechanism, and the other end provided with a displacement sensing end that is inclined in the same direction.

[0027] The sensor mounting plates are two in number, which are respectively installed laterally at the front and rear ends of the right side of the movable carrier plate, and their side surfaces are provided with sliding grooves along their length.

[0028] The displacement sensors are of several types, which can be adjusted and installed in the corresponding sliding grooves, and are all arranged in conjunction with the displacement sensing end.

[0029] Preferably, the rotary clamping mechanism further includes a reducing flange and a fixed flange, wherein:

[0030] There are two reducing flanges, which are symmetrically installed in the inner holes at the left and right ends of the rotating sleeve, and have screw holes that cooperate with the locking screws. The filter element to be cut is inserted through the inner hole laterally.

[0031] There are two fixed flanges, which are symmetrically installed on the outer periphery of the left and right ends of the rotating sleeve. They are coaxially arranged with the inner reducing flange and have screw holes that cooperate with the locking screws.

[0032] More preferably, the rotary clamping mechanism further includes a motor mounting plate, a tensioning wheel, and a housing, wherein:

[0033] The motor mounting plate is vertically mounted on the movable carrier plate, and the second rotary motor is fixedly connected to its left side wall, and a through hole for its output shaft is provided in its middle.

[0034] The tensioning pulley is installed at the top corners of both ends of the motor mounting plate, and is located outside the second synchronous belt and arranged in conjunction with the second synchronous belt;

[0035] The outer shell has an inverted U-shaped structure and is detachably installed on the left and right support plates with screws, forming a closed installation space.

[0036] More preferably, the rotary clamping mechanism further includes a speed detection plate and a speed sensor, wherein:

[0037] The rotation speed detection plate has an L-shaped structure, with one end fixedly installed on the outer periphery of the rotating sleeve, and the other end provided with a displacement sensing end facing outward.

[0038] The speed sensor is detachably mounted on the top of the motor mounting plate and is arranged in conjunction with the displacement sensing end above it.

[0039] This equipment is compatible with various cylindrical soft filter cartridges. The optimal process parameters for different materials are as follows:

[0040] PTFE filter element: ultrasonic frequency 20 kHz, rotation speed 100 r / min, feed speed 2 mm / s;

[0041] PFA filter element: ultrasonic frequency 20 kHz, rotation speed 80 r / min, feed speed 1.5 mm / s;

[0042] PET filter element: ultrasonic frequency 20 kHz, rotation speed 90 r / min, feed speed 1.8 mm / s;

[0043] PA filter element: ultrasonic frequency 20 kHz, rotation speed 60 r / min, feed speed 1.0 mm / s.

[0044] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0045] This invention relates to an ultrasonic-based rotary cutting experimental device for cylindrical soft filter cartridges. By employing the synergistic effect of ultrasonic vibration and rotary cutting, the cut is smooth and burr-free, with a flatness of ≤0.1mm, no stringing, and high cutting precision. Through the ultrasonic rotary cutting mechanism, the feeding and discharging conveyor mechanism, and the rotary clamping mechanism, the entire process from loading, clamping, positioning, cutting to unloading is fully automated, resulting in a high degree of automation and significantly improved experimental efficiency. Depending on production needs, the device supports cutting filter cartridges of various diameters and lengths through replaceable variable-diameter flanges and adjustable locking structures, offering strong adaptability. Furthermore, the cutting device features a desktop design, a compact structure, and a small footprint, making it suitable for laboratory and small-batch production environments. Attached Figure Description

[0046] Figure 1 This is a three-dimensional structural schematic diagram of an experimental device for rotary cutting of a cylindrical soft filter element based on ultrasonic cutting according to the present invention.

[0047] Figure 2 This is a cross-sectional structural schematic diagram of a rotary cutting experimental device for a cylindrical soft filter element based on ultrasonic cutting according to the present invention.

[0048] Figure 3 This is a three-dimensional structural diagram of the ultrasonic rotary cutting mechanism and the rotary clamping mechanism in an experimental device for rotary cutting of a cylindrical soft filter element based on ultrasonic cutting, according to the present invention. Figure 1 ;

[0049] Figure 4 This is a three-dimensional structural diagram of the ultrasonic rotary cutting mechanism and the rotary clamping mechanism in an experimental device for rotary cutting of a cylindrical soft filter element based on ultrasonic cutting, according to the present invention. Figure 2 ;

[0050] Figure 5 This is a front view schematic diagram of the ultrasonic rotary cutting mechanism and the rotary clamping mechanism in an experimental device for rotary cutting of a cylindrical soft filter element based on ultrasonic cutting according to the present invention.

[0051] Figure 6 For the present invention Figure 5 The diagram shows a cross-sectional view of section AA in a rotary cutting experimental device for cylindrical soft filter cartridges based on ultrasonic cutting.

[0052] Figure 7 For the present invention Figure 5 The diagram shows a cross-sectional view of the BB section in an experimental device for rotary cutting of a cylindrical soft filter cartridge based on ultrasonic cutting.

[0053] Figure 8This is a three-dimensional structural diagram of the ultrasonic rotary cutting mechanism in an experimental device for rotary cutting of a cylindrical soft filter element based on ultrasonic cutting, according to the present invention.

[0054] Figure 9 This is a three-dimensional structural diagram of the rotary clamping mechanism in an experimental device for rotary cutting of a cylindrical soft filter element based on ultrasonic cutting, according to the present invention. Figure 1 ;

[0055] Figure 10 This is a three-dimensional structural diagram of the rotary clamping mechanism in an experimental device for rotary cutting of a cylindrical soft filter element based on ultrasonic cutting, according to the present invention. Figure 2 ;

[0056] Figure 11 This is a schematic diagram of the assembly structure of the rotary clamping mechanism in an experimental device for rotary cutting of a cylindrical soft filter element based on ultrasonic cutting, according to the present invention. Figure 1 ;

[0057] Figure 12 This is a schematic diagram of the assembly structure of the rotary clamping mechanism in an experimental device for rotary cutting of a cylindrical soft filter element based on ultrasonic cutting, according to the present invention. Figure 2 ;

[0058] Figure 13 This is a schematic diagram of the assembly structure of the rotary clamping mechanism in an experimental device for rotary cutting of a cylindrical soft filter element based on ultrasonic cutting, according to the present invention. Figure 3 ;

[0059] Figure 14 For the present invention Figure 13 The diagram shows a partially enlarged structural schematic of part A in an experimental device for rotary cutting of a cylindrical soft filter cartridge based on ultrasonic cutting.

[0060] The accompanying figures are labeled as follows:

[0061] 100 - Equipment frame, 110 - Lower frame, 111 - Mounting platform, 120 - Upper frame, 121 - Ultrasonic scalpel driver, 130 - Operation button;

[0062] 200-Ultrasonic rotary cutting mechanism, 201-Support frame, 202-Ultrasonic transducer, 203-Vertical plate, 204-Disc cutter, 205-First rotary motor, 206-First synchronous belt;

[0063] 300-Feeding and discharging conveyor mechanism, 301-Linear guide rail, 302-Moving slider, 303-Stop block, 304-Buffer pad, 305-Moving carrier plate, 306-Screw nut, 307-Transmission screw, 308-Bearing with seat, 309-Feeding and discharging motor, 310-Coupling, 311-Displacement detection plate, 312-Sensor mounting plate, 313-Displacement sensor;

[0064] 400-Rotary clamping mechanism, 401-Rotary sleeve, 402-Bearing, 403-Support plate, 404-Reducing flange, 405-Locking screw, 406-Fixed flange, 407-Second synchronous belt, 408-Second rotary motor, 409-Motor mounting plate, 410-Tensioning wheel, 411-Speed ​​detection plate, 412-Speed ​​sensor, 413-Housing shell, 500-Receiving tray. Detailed Implementation

[0065] The present invention will now be described in detail and specifically through specific embodiments to enable a better understanding of the invention. However, the following embodiments do not limit the scope of the invention.

[0066] Example 1

[0067] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this embodiment provides an overall structure of an experimental device for rotary cutting of cylindrical soft filter cartridges based on ultrasonic cutting. The device includes a frame 100 and an ultrasonic rotary cutting mechanism 200, a feeding and discharging conveying mechanism 300, a rotary clamping mechanism 400, and a receiving tray 500 integrated thereon.

[0068] The equipment frame 100 constitutes the main support structure of the device, and a horizontal mounting platform 111 is provided on its top. The frame is made of welded steel or aluminum profile frame, which has sufficient rigidity and stability. The mounting platform 111 is divided into front and rear functional areas: the rear end is used to install the ultrasonic rotary cutting mechanism 200, and the front end is used to arrange the feeding and discharging conveying mechanism 300 and the rotary clamping mechanism 400. An electrical control cabinet is installed inside the frame to integrate electrical components and ultrasonic scalpel driver 112.

[0069] An ultrasonic rotary cutting mechanism 200 is laterally positioned at the rear end of a mounting plate 111 on a machine frame 100. It is used for a combined rotary cutting and ultrasonic vibration cutting process on a cylindrical soft filter element 001. The mechanism includes an ultrasonic transducer 202 and a disc cutter 204 fixedly mounted on the output end of the ultrasonic transducer 202. The ultrasonic transducer 202 is connected to a first rotary motor 205 via a first synchronous belt 206 to achieve the rotational movement of the disc cutter 204. Simultaneously, the ultrasonic transducer 202 receives electrical signals from the ultrasonic cutter driver 112, converts electrical energy into high-frequency mechanical vibration, and transmits it to the disc cutter 204 to achieve ultrasonic-assisted cutting.

[0070] The feeding and discharging conveying mechanism 300 is longitudinally positioned at the front end of the mounting platform 111 to realize automatic feeding, precise positioning and unloading of the filter element 001; its front and rear ends are defined as the feeding station and the cutting station, respectively. A disc cutter 204 and a receiving tray 500 for collecting the cut filter element segments are provided on one side of the cutting station; the top of the feeding and discharging conveying mechanism 300 is provided with a movable carrier plate 305 that can move back and forth longitudinally, and a transversely arranged rotating clamping mechanism 400 is fixedly installed on the movable carrier plate 305.

[0071] The rotary clamping mechanism 400 is used to clamp and drive the filter element 001 to be cut to rotate, realizing circumferential feeding during the cutting process. It includes a rotary sleeve 401 for accommodating and fixing the filter element 001. The left and right ends of the rotary sleeve 401 are supported on a pair of support plates 403 by bearings 402, respectively, so as to achieve free rotation. Both ends of the rotary sleeve 401 are provided with locking screws 405 for radially locking the filter element 001 placed inside it. The middle part of the rotary sleeve 401 is connected to the second rotary motor 408 through the second synchronous belt 407, and is driven to rotate by the second rotary motor 408, so that the filter element 001 rotates at a uniform speed during the cutting process.

[0072] The receiving tray 500 is located below the cutting station, to the side and below the disc cutter 204. The receiving tray 500 can be designed as a pull-out type or a fixed type, which facilitates the collection of filter segments and small amounts of debris generated during the cutting process, keeping the working area clean.

[0073] The working principle of the rotary cutting experimental equipment in this embodiment is briefly described as follows: The operator loads the filter element into the rotary clamping mechanism 400 and locks it, and then starts the feeding and discharging conveying mechanism 300 to move the filter element 001 backward to the cutting station; then the first rotary motor 205 drives the ultrasonic disc cutter 204 to rotate, and at the same time the ultrasonic transducer 202 starts high-frequency vibration, and the second rotary motor 408 drives the filter element 001 to rotate; at this time, the disc cutter 204 cuts the rotating filter element 001 under the assistance of ultrasonic vibration. After the cutting is completed, the cut part falls into the receiving tray 500 on one side, and the feeding and discharging conveying mechanism 300 automatically moves forward to the loading station to reset.

[0074] Example 2

[0075] like Figure 1 and Figure 2 As shown in the figure, this embodiment further describes the specific structure of the equipment rack 100. The equipment rack 100 includes a lower rack 110, an upper rack 120, and operation buttons 130.

[0076] The lower frame 110 is a box-type structure with a horizontal mounting plate 111 on its top for supporting and installing various functional mechanisms. The lower frame 110 has an electrical control cabinet inside, and an ultrasonic scalpel driver 112 is integrated inside the cabinet. The ultrasonic scalpel driver 112 is connected to the ultrasonic transducer 202 via a cable to provide high-frequency electrical signals and control ultrasonic vibration parameters.

[0077] The upper frame 120 is a frame structure, which is vertically fixed to the rear side of the top of the mounting plate 111 for support and protection. A rectangular inlet / outlet window 121 is opened at the lower front side of the upper frame 120. The inlet / outlet conveying mechanism 300, the rotary clamping mechanism 400 and the receiving tray 500 are all arranged in the area corresponding to the inlet / outlet window 121, which facilitates the operator to load and unload materials and observe the cutting process.

[0078] There are two operation buttons 130, located on the mounting plates 111 on the left and right sides of the loading station at the front of the feeding / discharging conveyor mechanism 300, respectively. The left operation button 130 is electrically connected to the first rotary motor 205 and is used to control the start and stop of the ultrasonic rotary cutting. The right operation button 130 is electrically connected to the second rotary motor 408 and is used to control the start and stop of the filter element rotation. In addition, as needed, emergency stop, reset, and other function keys can be provided on the front panel of the upper frame 120.

[0079] Example 3

[0080] like Figure 6 , Figure 7 and Figure 8 As shown, this embodiment details the specific composition and spatial arrangement of the ultrasonic rotary cutting mechanism 200. The mechanism includes a support frame 201, an ultrasonic transducer 202, a vertical plate 203, a disc cutter 204, a first rotary motor 205, and a first synchronous belt 206.

[0081] The support frame 201 is an inverted U-shaped welded structure, which is fixedly installed on the left side of the rear end of the mounting platform 111 by bolts; at least two vertically arranged upright plates 203 are installed at the front end of the support frame 201 at a horizontal interval, and each upright plate 203 has a coaxially arranged mounting hole on its top.

[0082] The ultrasonic transducer 202 is horizontally positioned, and its main body is rotatably supported in the mounting holes of the corresponding vertical plate 203 by at least two sets of deep groove ball bearings. A disc cutter 204 is fixedly mounted on the right end of the ultrasonic transducer 202 via a flange connection. The outer circumference of the disc cutter 204 has continuous or intermittent sharp blades for mechanical and ultrasonic cutting of the filter element 001. The left end of the ultrasonic transducer 202 is connected to the ultrasonic scalpel driver 112 inside the lower frame 110 via an external connection connector using an electric slip ring, enabling continuous and stable power and signal transmission.

[0083] The first rotary motor 205 is fixedly mounted on the rear end of the support frame 201 via a motor mount, and a drive pulley is mounted on its output shaft; a driven pulley is fixedly mounted on the outer periphery of the middle part of the ultrasonic transducer 202; the first synchronous belt 206 is sleeved on the drive pulley and the driven pulley to form a belt drive system, so as to realize the rotation drive of the first rotary motor 205 on the ultrasonic transducer 202 and the disc cutter 204.

[0084] It is worth noting that the central axes of the ultrasonic transducer 202 and the disc cutter 204 coincide and are arranged coaxially. This axis is parallel to the central axis of the filter element 001 to be cut held on the rotary clamping mechanism 400, and the two are at the same horizontal height. This ensures that the blade teeth maintain uniform contact with the outer circumference of the filter element during the cutting process, ensures uniform distribution of cutting force, and avoids uneven cutting pressure or tilted cut due to height difference or angle deviation.

[0085] Example 4

[0086] like Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 As shown, this embodiment describes the specific structure, limiting, and detection functions of the feeding and discharging conveying mechanism 300. The feeding and discharging conveying mechanism 300 includes two parallel longitudinally arranged linear guide rails 301, a movable slider 302 slidably mounted on them, a movable carrier plate 305 fixed to the slider, and a transmission screw 307 driven by a feeding / discharging motor 309 through a coupling 310. The screw nut 306 at the bottom of the movable carrier plate 305 engages with the transmission screw 307 to achieve precise linear motion.

[0087] Specifically, the linear guide 301 consists of two high-precision linear guides, which are parallel and longitudinally fixed to the left edge of the mounting plate 111 with left and right intervals; each linear guide 301 has two sliding sliders 302.

[0088] The movable carrier plate 305 is a rectangular flat plate structure, and its four bottom corners are fixedly connected to the top of the corresponding four movable sliders 302 by screws; a lead screw nut 306 is fixedly installed vertically downward at the center of the front bottom surface of the movable carrier plate 305.

[0089] The transmission screw 307 is a precision ball screw, and its front and rear ends are supported on the mounting base between the left and right linear guide rails 301 by bearings 308. The transmission screw 307 passes through the screw nut 306 and forms a helical pair with it.

[0090] The feed motor 309 is a servo motor or a stepper motor, which is fixedly mounted on the mounting plate 111 between the rear ends of the two linear guide rails 301 via a motor bracket; the output shaft of the feed motor 309 is directly connected to the rear end of the transmission lead screw 307 via a coupling 310.

[0091] In use, by controlling the forward and reverse rotation of the feed and discharge motor 309, the transmission screw 307 is driven to rotate forward and reverse, which in turn drives the moving carrier plate 305 and the rotary clamping mechanism 400 mounted on it to move precisely longitudinally along the linear guide rail 301 through the screw nut 306.

[0092] like Figure 12 As shown, in order to achieve safety limiting and buffering, the feeding and discharging conveying mechanism 300 also includes stops 303 fixedly installed at the extreme positions of the front and rear ends of each linear guide rail 301, which are used to mechanically limit the stroke of the moving slider 302 and prevent damage from overtravel; and elastic buffer pads 304 are respectively attached to the inner side wall of each linear guide rail 301 at the extreme positions of the front and rear movement of the moving carrier plate 305, which are used to provide buffering when the moving carrier plate 305 approaches the end of the stroke, reducing impact and noise.

[0093] The feeding and discharging conveying mechanism 300 uses metal stops 303 installed at the front and rear ends of each linear guide rail 301 for mechanical limiting. Polyurethane buffer pads 304 are attached to the inner side of the guide rails at the front and rear limit positions corresponding to the moving carrier plate 305, which serve to provide soft stopping and shock absorption.

[0094] In addition, such as Figure 11 and Figure 12 As shown, in order to further improve positioning accuracy and status feedback, the feeding and discharging conveying mechanism 300 is also equipped with a displacement detection component. The displacement detection component mainly consists of a displacement detection plate 311 for real-time detection of the position of the moving carrier plate 305, a sensor mounting plate 312, and a displacement sensor 313.

[0095] The displacement detection plate 311 is a zigzag structure formed by bending a metal plate. Its vertical section is fixed to the lower end of the left support plate 403 of the rotary clamping mechanism 400 by screws; its horizontal extension section has a downwardly bent displacement sensing end.

[0096] The sensor mounting plate 312 consists of two long L-shaped plates, which are horizontally fixed to the front and rear ends of the right edge of the movable carrier plate 305, respectively; each sensor mounting plate 312 has a long sliding groove along its length on its side surface.

[0097] The displacement sensor 313 consists of several non-contact photoelectric sensors or proximity switches. Each sensor is mounted in a corresponding sliding groove via an adjustable slider and can be adjusted in its installation position by sliding it in the groove with bolts. The sensing heads of all displacement sensors 313 are arranged facing the displacement sensing end of the displacement detection plate 311 to detect whether the moving carrier plate 305 has reached the preset loading position, cutting position or safety limit, and to feed the signal back to the control system.

[0098] The displacement sensor 313 is a photoelectric proximity switch, which is installed in a long sliding groove via a slider, and its position is adjustable. When the rotary clamping mechanism 400 moves with the moving carrier plate 305, the sensing end of the displacement detection plate 311 sequentially triggers each displacement sensor 313, corresponding to the loading position, cutting position and limit position respectively. The signal is sent to the PLC to realize closed-loop position control.

[0099] Example 5

[0100] like Figure 11 , Figure 12 , Figure 13 and Figure 14 As shown, this embodiment details the clamping adaptation, transmission, and detection design of the rotary clamping mechanism 400. Unlike Embodiment 1, the rotary clamping mechanism 400, in addition to including a rotary sleeve 401, bearing 402, support plate 403, locking screw 405, second synchronous belt 407, and second rotary motor 408, also includes a variable diameter flange 404 for adapting to filter elements of different diameters and a fixed flange 406 for enhancing locking stability.

[0101] There are two reducing flanges 404, which are in the shape of a ring. Their outer circumference is fitted with the inner holes at the left and right ends of the rotating sleeve 401 using a transition or small clearance fit. The inner diameter of the reducing flange 404 is designed in various specifications according to the standard diameter series of the filter element 001 to be cut, such as 63mm, 73mm, and 83mm, which can be replaced. Each reducing flange 404 has at least three radial threaded holes evenly opened along the circumference on the ring body.

[0102] Correspondingly, there are two fixed flanges 406, which are coaxially fixed to the outer peripheral end faces of the left and right ends of the rotating sleeve 401 by screws; the fixed flanges 406 are also provided with through holes at the radial threaded hole positions of the strain gauge flanges 404.

[0103] During installation, the locking screw 405 is an internal hexagonal flat-head screw, which passes through the through hole on the fixing flange 406 and is screwed into the radial threaded hole of the reducing flange 404. By tightening the screw, its front end presses against the outer wall of the end of the filter element 001 inserted into the inner hole of the reducing flange 404, thereby realizing the quick clamping and radial locking of the filter element.

[0104] The reducing flange 404 and the fixed flange 406 constitute the clamping and reducing mechanism of the rotary clamping mechanism 400. Replaceable reducing flanges 404 are installed in the inner holes at both ends of the rotating sleeve 401, and the fixed flange 406 is correspondingly provided at the outer end. The locking screw 405 passes through the fixed flange and tightens the reducing flange, thereby clamping the filter element. By replacing the reducing flanges with different inner diameters, filter elements of various specifications such as 63mm, 73mm, and 83mm can be adapted.

[0105] In addition, such as Figure 12 and Figure 13 As shown, the rotary clamping mechanism 400 also includes a motor mounting plate 409 for mounting the drive components, a tensioning pulley 410 for adjusting the tension of the transmission belt, and a housing 413 for safety protection. That is, the second rotary motor 408 is fixed by the motor mounting plate 409 and drives the rotating sleeve via the second synchronous belt 407. The tensioning pulley 410 is used to adjust the tension of the synchronous belt. The housing 413 covers the outside of the transmission components and provides protection.

[0106] Specifically, the motor mounting plate 409 is a vertically arranged rectangular plate, and its bottom is vertically fixed to one side of the upper surface of the movable carrier plate 305 by bolts; the second rotary motor 408 is fixedly mounted on the left side wall of the motor mounting plate 409 by screws; a through hole is opened in the middle of the motor mounting plate 409 for the output shaft of the second rotary motor 408 to pass through.

[0107] There are two tension pulleys 410, which are respectively mounted on the two top corners of the motor mounting plate 409 via bearing seats. The two tension pulleys 410 are located on the outside of the transmission circuit of the second synchronous belt 407 and are in contact with the outer side of the synchronous belt. The tension of the second synchronous belt 407 is adjusted by adjusting the installation position of the tension pulleys 410 to ensure smooth transmission.

[0108] The outer casing 413 is an inverted U-shaped cover made of sheet metal. Its top and two sides surround the transmission area consisting of the rotating sleeve 401, the second synchronous belt 407, the second rotating motor 408, and the tensioning wheel 410. The outer casing 413 is detachably installed on the top of the left and right support plates 403 by screws, forming a closed or semi-closed protective space, which serves to prevent dust, prevent accidental contact, and reduce operating noise.

[0109] In addition, the rotary clamping mechanism 400 also includes a speed detection plate 411 and a speed sensor 412 for real-time monitoring of the filter element's rotation speed. The speed detection plate 411 is an L-shaped metal plate, the horizontal section of which is radially fixed to the outer circumferential surface of the middle part of the rotary sleeve 401 by screws; its vertical section extends upward and has a displacement sensing end that bends horizontally outward at the end.

[0110] The speed sensor 412 is a Hall sensor or photoelectric encoder, which is detachably mounted on the top edge of the motor mounting plate 409 via an adjustable bracket, with its sensing head facing and close to the rotation path of the displacement sensing end of the speed detection plate 411. When the rotating sleeve 401 rotates, the displacement sensing end generates a pulse signal every time it passes the sensor. The control system calculates the actual rotation speed of the filter element based on the pulse frequency to achieve closed-loop speed control or overspeed alarm.

[0111] The rotational speed detection part of the rotary clamping mechanism 400 is composed of a rotational speed detection plate 411 and a rotational speed sensor 412. The rotational speed detection plate 411 is fixed on the outside of the rotary sleeve 401, and the rotational speed sensor 412 is provided accordingly. The rotational speed of the filter element 001 clamped in the rotary sleeve 401 can be monitored in real time to ensure that the cutting feed is uniform and controllable.

[0112] Example 6

[0113] Combination Figures 1 to 14 As shown, this embodiment, in conjunction with the above-mentioned mechanisms, details the complete workflow of the device from preparation to completion of cutting, specifically including the following steps:

[0114] Step 1: Preparation and Loading

[0115] According to the diameter of filter element 001, select the corresponding diameter reducing flange 404 and install it into both ends of the rotating sleeve 401; then insert filter element 001 into the rotating sleeve 401 from the right side, so that the end of filter element 001 passes through the tightening reducing flange 404 and extends to a certain length on the left side; then manually tighten the locking screws 405 on both sides to radially lock filter element 001 inside the rotating sleeve 401; the operator presses the loading button on the right side, the feeding motor 309 starts, and drives the moving carrier plate 305 to move forward along the linear guide rail 301 to the loading station. The motor stops after the displacement sensor 313 detects the position signal.

[0116] Step 2: Centering and Cutting

[0117] After receiving the cutting command, the PLC controller reverses the feed motor 309, driving the moving carrier plate 305 to move backward at a constant speed to the cutting station. Once the moving carrier plate 305 is in place, the first rotary motor 205 starts, driving the disc cutter 204 to rotate. Simultaneously, the ultrasonic scalpel driver 112 starts, causing the disc cutter 204 to generate high-frequency ultrasonic vibration. The second rotary motor 408 starts synchronously, driving the rotating sleeve 401 and filter element 001 to rotate slowly at a constant speed via a synchronous belt drive. The rotating ultrasonic disc cutter 204 gradually cuts into the outer wall of the rotating filter element 001, achieving a clean and smooth circumferential cut with the assistance of high-frequency vibration. During the cutting process, the speed sensor 412 monitors the filter element's rotation speed in real time, and the displacement sensor 313 monitors the carrier plate position to ensure a stable cutting process.

[0118] Step 3: Material feeding and repositioning

[0119] Once the filter element is cut to the set depth or completely severed, the cut filter element segment falls into the receiving tray 500 below under gravity. The operator presses the loading button on the right to reset the device. The first rotary motor 205 and ultrasonic vibration stop, the second rotary motor 408 stops, and the feed motor 309 is controlled to rotate forward, driving the moving carrier plate 305 to move forward and return to the loading position. Then, the operator manually loosens the locking screw 405, removes the remaining filter element, and completes one work cycle.

[0120] In summary, the present invention has detailed the overall structure and refined design of each core mechanism of the rotary cutting experimental device through the above embodiments. This device integrates ultrasonic cutting, mechanical rotation, automatic conveying, and intelligent detection, and is suitable for high-quality, high-efficiency cutting experiments and sample preparation of soft cylindrical filter elements such as PTFE.

[0121] The specific embodiments of the present invention have been described in detail above, but they are merely examples, and the present invention is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to the present invention are also within the scope of the present invention. Therefore, all equivalent transformations and modifications made without departing from the spirit and scope of the present invention should be covered within the scope of the present invention.

Claims

1. An experimental device for rotary cutting of cylindrical soft filter cartridges based on ultrasonic cutting, characterized in that, The equipment includes a frame (100) and an ultrasonic rotary cutting mechanism (200), a feeding and discharging conveying mechanism (300), a rotary clamping mechanism (400), and a receiving tray (500) mounted on the frame (100), wherein: The ultrasonic rotary cutting mechanism (200) is laterally arranged at the rear end of the mounting plate (111) on the equipment frame (100). It includes an ultrasonic transducer (202) and a disc cutter (204) fixedly arranged at the right end of the ultrasonic transducer (202). The ultrasonic transducer (202) is connected to the first rotary motor (205) via a first synchronous belt (206). The feeding and discharging conveying mechanism (300) is longitudinally arranged at the front end of the mounting plate (111), and its front and rear ends are respectively set as feeding station and cutting station. The disc cutter (204) and the receiving plate (500) are arranged on one side of the cutting station at its rear end, and the horizontally arranged rotating clamping mechanism (400) is fixed on the movable carrier plate (305) on its top that can move back and forth. The rotary clamping mechanism (400) includes a rotary sleeve (401) for clamping the filter element (001) to be cut. The left and right ends of the rotary sleeve (401) are respectively mounted on the support plate (403) via bearings (402). The ends of the sleeve are respectively threaded with locking screws (405) for locking the filter element (001) to be cut. The middle part of the sleeve is connected to the second rotary motor (408) via a second synchronous belt (407).

2. The rotary cutting experimental apparatus according to claim 1, characterized in that, The equipment rack (100) includes a lower rack (110), an upper rack (120) disposed above the lower rack (110), and an operation button (130) disposed at the top front end of the lower rack (110), wherein: The mounting plate (111) is provided on the top of the lower frame (110), and an ultrasonic scalpel driver (112) connected to the ultrasonic transducer (202) is provided in the cabinet below it. The upper frame (120) is fixedly installed on the rear side of the mounting plate (111), and the lower part of its front side is provided with an inlet / outlet window (121) for installing the inlet / outlet conveying mechanism (300), the rotary clamping mechanism (400) and the receiving tray (500). There are two operation buttons (130), which are respectively located on the mounting plates (111) on the left and right sides of the loading station at the front end of the feeding and discharging mechanism (300), and are electrically connected to the first rotary motor (205) and the second rotary motor (408) respectively.

3. The rotary cutting experimental apparatus according to claim 1, characterized in that, The ultrasonic rotary cutting mechanism (200) includes a support frame (201), an ultrasonic transducer (202), a vertical plate (203), a disc cutter (204), and a first rotary motor (205), wherein: The support frame (201) is fixedly installed on the left side of the rear end of the mounting platform (111), and a number of vertical plates (203) arranged at left and right intervals are installed at its front end. The ultrasonic transducer (202) is rotatably mounted on the corresponding vertical plate (203) via several bearings, and the disc cutter (204) is fixedly mounted on its right end. The first rotary motor (205) is fixedly installed at the rear end of the support frame (201), and its output shaft is connected to the outer periphery of the ultrasonic transducer (202) via the first synchronous belt (206).

4. The rotary cutting experimental apparatus according to claim 3, characterized in that, The ultrasonic transducer (202) and the disc cutter (204) are arranged on the same axis, and their axes are parallel to the filter element (001) to be cut that is clamped and installed on the rotary clamping mechanism (400) and are at the same horizontal height.

5. The rotary cutting experimental apparatus according to claim 1, characterized in that, The feeding and discharging conveying mechanism (300) includes a linear guide rail (301), a movable slider (302), a movable carrier plate (305), a lead screw nut (306), a transmission lead screw (307), and a feeding and discharging motor (309), wherein: The linear guide rail (301) consists of two rails arranged at left and right intervals. The rails are longitudinally positioned at the left end of the mounting plate (111), and two sliding sliders (302) are slidably mounted on them. The bottom four corners of the movable carrier plate (305) are respectively fixedly connected to the corresponding movable slider (302), and the bottom of its front end is fixedly installed with the lead screw nut (306). The front and rear ends of the transmission screw (307) are respectively set between the left and right linear guides (301) via bearings (308), and the screw nut (306) is threaded on it. The feed motor (309) is fixedly installed on the mounting plate (111) between the rear ends of the two linear guides (301), and its output shaft is connected to the transmission screw (307) shaft through a coupling (310).

6. The rotary cutting experimental apparatus according to claim 5, characterized in that, The feeding and discharging conveying mechanism (300) further includes stops (303) fixedly installed at the front and rear ends of each linear guide rail (301), and the inner sidewall of the linear guide rail (301) is fixedly provided with a buffer pad (304) corresponding to the front and rear ends of the movable carrier plate (305).

7. The rotary cutting experimental apparatus according to claim 5, characterized in that, The feeding and discharging conveying mechanism (300) further includes a displacement detection plate (311), a sensor mounting plate (312), and a displacement sensor (313), wherein: The displacement detection plate (311) has a zigzag structure. One end of it is fixedly installed at the lower end of the left side wall of the rotary clamping mechanism (400), and the other end is provided with a displacement sensing end that is arranged at an angle. There are two sensor mounting plates (312), which are installed laterally at the front and rear ends of the right side of the movable carrier plate (305), and their side surfaces are provided with sliding grooves along their length. The displacement sensors (313) are multiple and can be adjusted and installed in the corresponding sliding grooves, and are all arranged in conjunction with the displacement sensing end.

8. The rotary cutting experimental apparatus according to claim 1, characterized in that, The rotary clamping mechanism (400) further includes a reducing flange (404) and a fixed flange (406), wherein: There are two reducing flanges (404), which are symmetrically installed in the inner holes at the left and right ends of the rotating sleeve (401), and have screw holes that cooperate with the locking screws (405). The filter element (001) to be cut is inserted horizontally through its inner hole. There are two fixed flanges (406), which are symmetrically installed on the outer periphery of the left and right ends of the rotating sleeve (401) and are coaxially arranged with the inner reducing flange (404), and have screw holes that cooperate with the locking screws (405).

9. The rotary cutting experimental apparatus according to claim 8, characterized in that, The rotary clamping mechanism (400) further includes a motor mounting plate (409), a tensioning wheel (410), and a housing (413), wherein: The motor mounting plate (409) is vertically mounted on the movable carrier plate (305), and the second rotary motor (408) is fixedly connected to its left side wall, and a through hole for its output shaft is provided in its middle. The tensioning pulley (410) is installed at the top corners of both ends of the motor mounting plate (409), and is located outside the second synchronous belt (407) and is arranged in conjunction with the second synchronous belt (407); The outer shell (413) has an inverted U-shaped structure and is detachably installed on the left and right support plates (403) with screws to form a closed installation space.

10. The rotary cutting experimental apparatus according to claim 9, characterized in that, The rotary clamping mechanism (400) further includes a speed detection plate (411) and a speed sensor (412), wherein: The rotation speed detection plate (411) has an L-shaped structure. One end of it is fixedly installed on the outer periphery of the rotating sleeve (401), and the other end is provided with a displacement sensing end facing outward. The speed sensor (412) is detachably mounted on the top of the motor mounting plate (409) and is arranged in conjunction with the displacement sensing end above it.

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