Melt-blowing filter cartridge production device

Abstract

The invention relates to a melt-blowing filter cartridge production device which comprises melt-blowing equipment, cartridge forming equipment, cartridge conveying equipment and cartridge segmenting equipment. According to the barrel conveying equipment, rotation and axial movement of the filter barrel are achieved through the inclined rotating roller and the limiting roller, the position is adjusted in cooperation with a lead screw nut mechanism, and stable conveying is ensured. The barrel segmenting equipment comprises a platen, a limiting structure, a cutting structure, an axis positioning structure and a stress releasing structure. The limiting structure supports the filter cartridge to rotate through a first limiting column and a second limiting column, the cutting structure drives a cutting blade to complete segmentation through a cutting air cylinder, the axis positioning structure conducts accurate positioning through a positioning column, the stress release structure releases thrust through a guide rail and a tension spring, and the stroke detection device controls the moving distance. In the working process, after a filter cartridge is formed by the melt-blowing equipment, the filter cartridge is moved to the cartridge segmenting equipment through the cartridge conveying equipment, and precise cutting and automatic discharging are completed. The device is compact in structure and high in automation degree, and the production efficiency, the segmentation precision and the equipment stability of the filter cartridge are remarkably improved.

Description

Technical Field

[0001] This invention relates to a meltblown filter cartridge production apparatus, belonging to the field of filter cartridge production equipment. Background Technology

[0002] Meltblown filter cartridges are widely used in air purification, water treatment, pharmaceuticals, and biotechnology, primarily for filtering particulate matter, impurities, and pollutants. The traditional production process for meltblown filter cartridges includes multiple stages such as meltblowing molding, cartridge forming, conveying, cutting, and assembly. However, existing production equipment still has many shortcomings in terms of automation, conveying stability, and cutting precision, affecting product quality and production efficiency.

[0003] Currently, filter cartridge production equipment on the market typically uses ordinary conveyor belts or roller conveyors for transport, but these methods have the following problems: Poor transmission stability: Because the filter cartridge is a cylindrical structure, it is prone to displacement or shaking during the rolling process, which leads to inaccurate subsequent cutting positions and affects the product dimensional accuracy.

[0004] Low cutting accuracy: Traditional cutting equipment mostly relies on mechanical limits or manual measurement to determine the cutting position, which is prone to errors, resulting in large deviations in product size and affecting assembly accuracy.

[0005] Low level of automation: After the existing equipment has finished cutting, manual intervention is usually required to unload or adjust the equipment in order to carry out the next round of cutting, which increases labor costs and production time.

[0006] To address the aforementioned issues and improve the production efficiency and quality of meltblown filter cartridges, there is an urgent need for a highly efficient, stable, and automated meltblown filter cartridge production device. This device would ensure the smooth operation of the filter cartridges during transport, improve cutting accuracy, achieve automatic unloading, reduce manual intervention, and enhance the overall operating efficiency of the production line. Summary of the Invention

[0007] The purpose of this invention is to provide a meltblown filter cartridge production apparatus that can effectively solve the above-mentioned problems.

[0008] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: It includes meltblown equipment, tube forming equipment, tube conveying equipment, and tube segmentation equipment; the tube conveying equipment includes two symmetrically arranged mounting plates, and the mounting plates are provided with through holes for conveying filter tubes; Cylinders are provided on opposite sides of the two mounting plates. The piston end of the cylinder is connected to a rotating roller via a ball joint. The axis of the rotating roller is inclined relative to the axis of the filter cylinder. Two limiting rollers are also provided between the mounting plates. The axis of the limiting rollers is parallel to the axis of the filter cylinder and is located below the rotating roller. One of the limiting rollers is connected to an electric motor at its end.

[0009] Furthermore: the cylinder is mounted on the mounting plate via a mounting frame, and the mounting frame moves on the mounting plate via a screw and nut mechanism; the screw and nut mechanism includes a slide rail with a groove, the slide rail is fixed on the mounting plate, a slider is provided in the groove, the slider is fixedly connected to the mounting frame, two fixing plates are provided on one side of the slide rail, a screw is rotatably provided between the fixing plates, and the screw is threadedly connected to the mounting frame.

[0010] Furthermore: the cylinder segmentation device includes a platform and a limiting structure and a cutting structure disposed on the upper end of the platform; the limiting structure includes two first limiting posts disposed on the upper end of the platform, and two second limiting posts disposed above the first limiting posts; the filter cylinder is positioned between the first limiting posts and the second limiting posts, and the first limiting posts and the second limiting posts are in contact with the filter cylinder and rotate with the filter cylinder; The cutting structure includes a cutting cylinder, and the piston end of the cutting cylinder is provided with a cutting blade. The cutting blade is located above the filter cylinder, and the cutting blade moves up and down under the control of the cutting cylinder.

[0011] Furthermore, the cylinder segmentation device also includes an axis positioning structure, which includes a fixed column disposed on the upper surface of the platform, an extension plate fixed to one side of the fixed column, a positioning cylinder fixed to the extension plate, and a positioning column rotatably connected to the piston end of the positioning cylinder, the axis of the positioning column coinciding with the axis of the filter cylinder.

[0012] Furthermore: one of the first limiting columns is divided into a fixed section and a discharge section with overlapping axes, and the fixed section and the discharge section have the same diameter; the fixed section is rotatably disposed between the two vertical plates, the discharge section is rotatably disposed between the two lifting plates, and the lifting plates are fixed on the lifting cylinder.

[0013] Furthermore: the second limiting post is mounted on the platform via a mounting bracket, the mounting bracket including two support posts, a horizontal plate at the upper end of the support posts, and a corner plate at the lower end of the horizontal plate, the second limiting post being rotatably mounted on the corner plate.

[0014] Furthermore, the filter cylinder segmentation device also includes a stress relief structure, which is used to release the force exerted by the filter cylinder against the positioning column; the stress relief structure includes an operating platform, two parallel guide rails disposed on the upper end of the operating platform, and two parallel guide bars disposed on the lower end face of the platform, the guide bars being slidably disposed in the guide rails; and a first side plate is disposed on the operating platform, a second side plate is disposed on the lower end face of the platform, and a tension spring is disposed between the first side plate and the second side plate.

[0015] Furthermore, the stress relief structure is also equipped with a stroke detection device, which is used to control the distance the platform moves; the stroke detection device includes a metal detector disposed on the lower end face of the platform and a metal block disposed on the upper end face of the operating platform.

[0016] The beneficial effects are: 1. The cylinder conveying equipment uses a combination of inclined rotating rollers and limiting rollers. Through the tilt angle of the rotating rollers and the driving action of the limiting rollers, the filter cylinder moves smoothly along the axial direction while rotating, avoiding the shaking or deviation problems that may occur during the conveying process in traditional equipment, and ensuring the continuity and stability of the production process.

[0017] 2. The filter cylinder segmentation equipment, through the cooperation of the limiting structure and the cutting structure, can accurately position the cutting position of the filter cylinder. The positioning column in the axial positioning structure further restricts the axial movement of the filter cylinder, ensuring that the cutting blade is accurately positioned each time it cuts, thereby significantly improving the accuracy and consistency of segmentation.

[0018] 3. The stress relief structure effectively releases the thrust generated by the filter cartridge on the positioning column through the setting of the operating table, guide rail, guide bar and tension spring. At the same time, the stress relief structure also has the function of stabilizing the filter cartridge.

[0019] 4. The application of the stroke detection device accurately controls the movement distance of the control panel and automatically controls the cutting cylinder to cut, so that the cut filter cartridges are of the same length. Attached Figure Description

[0020] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is the front view of the present invention; Figure 2 This is a part drawing of the cylinder conveying device of the present invention; Figure 3 This is a top view of the cylinder conveying device of the present invention; Figure 4 This is a right view of the cylinder conveying device of the present invention; Figure 5This is a part drawing of the cylinder segmentation device of the present invention; Figure 6 This is a partial part drawing of the cylinder segmentation device of the present invention; Figure 7 This is a drawing of the limiting structure part of the present invention; Figure 8 This is a schematic diagram of the platform being pushed according to the present invention; Figure 9 This is a schematic diagram of the cutting process of the present invention; Figure 10 This is a schematic diagram of the discharge section descending according to the present invention.

[0022] Explanation of reference numerals in the attached figures: 1. Cylindrical forming equipment; 2. Cylindrical conveying equipment; 21. Mounting plate; 22. Through hole; 23. Cylinder; 24. Ball joint; 25. Rotating roller; 26. Limiting roller; 27. Mounting frame; 28. Screw and nut mechanism; 281. Slide rail; 282. Slide groove; 283. Slider; 284. Fixed plate; 285. Screw; 3. Cylindrical segmenting equipment; 4. Filter cylinder; 5. Limiting structure; 51. First limiting post; 511. Fixed section; 512. Discharge section; 513. Vertical plate; 514. Lifting plate; 515. Lifting cylinder; 52 54. Second limiting post; 54. Mounting bracket; 541. Support post; 542. Horizontal plate; 543. Angle plate; 6. Cutting structure; 61. Cutting cylinder; 62. Cutting blade; 7. Table; 8. Axis positioning structure; 81. Fixed post; 82. Extension plate; 83. Positioning cylinder; 84. Positioning post; 9. Stress relief structure; 91. Operating table; 92. Guide rail; 93. Guide strip; 94. First side plate; 95. Second side plate; 96. Tension spring; 10. Stroke detection device; 101. Metal detector; 102. Metal block. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] It should be noted that, in the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0025] Furthermore, the terms “first,” “second,” “third,” etc., are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance.

[0026] Furthermore, in the description of this invention, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] See Figure 1-10 This is one embodiment of a meltblown filter cartridge production device of the present invention. In this embodiment, the meltblown filter cartridge production device includes meltblown equipment, cartridge forming equipment 1, cartridge conveying equipment 2, and cartridge segmenting equipment 3. Each part works together to complete the production, conveying, segmenting, and discharge of the filter cartridge 4.

[0028] Cylinder conveyor 2: See Figure 1-5 The filter cartridge 4 conveying device 2 includes two symmetrically arranged mounting plates 21, each with a through hole 22 for the filter cartridge 4 to pass through. Cylinders 23 are mounted on opposite sides of the two mounting plates 21, and the piston ends of the cylinders 23 are connected to a rotating roller 25 via ball joints 24. The axis of the rotating roller 25 is inclined at a certain angle relative to the axis of the filter cartridge 4 to generate axial thrust when the filter cartridge 4 rotates. Between the two mounting plates 21, two limiting rollers 26 are also provided, with their axes parallel to the axis of the filter cartridge 4 and located below the rotating roller 25. One end of the limiting roller 26 is connected to a motor for driving its rotation.

[0029] When the motor rotates, one of the limiting rollers 26 rotates, which drives the filter cylinder 4 pressed between the limiting roller 26 and the rotating roller 25 to rotate. At this time, the rotating filter cylinder 4 drives the rotating roller 25 with the inclined axis to rotate. The rotating roller 25 with the inclined axis provides axial thrust to the filter cylinder 4, so that the filter cylinder 4 can move along the axis while rotating.

[0030] Fine-tuning of cylinder conveyor 2: The cylinder 23 is fixed to the mounting plate 21 by the mounting frame 27, and the mounting frame 27 is adjusted in position by a screw and nut mechanism 28. The screw and nut mechanism 28 includes a slide rail 281 fixed to the mounting plate 21, a slide groove 282 on the slide rail 281, and a slider 283 slidably disposed in the slide groove 282. The slider 283 is fixedly connected to the mounting frame 27. Two fixing plates 284 are provided on one side of the slide rail 281, and a screw 285 is rotatably disposed between the two fixing plates 284. The screw 285 is threadedly connected to the mounting frame 27.

[0031] By rotating the screw 285, the mounting frame 27 can be moved along the slide rail 281, thereby adjusting the relative position of the two cylinders 23 and achieving the purpose of controlling the tilt angle of the axis of the rotating roller 25. When the filter cylinder 4 rotates, the rotating roller 25 can provide different axial thrusts. When the tilt angle is larger, the axial thrust is larger, and the speed of the axial movement of the filter cylinder 4 is faster.

[0032] The cylinder segmentation device 3 includes a platform 7, and a limiting structure 5, a cutting structure 6, an axis positioning structure 8, and a stress relief structure 9 disposed on the platform 7. The following is a detailed description of each part: Limiting structure 5: See Figure 6-8 The limiting structure 5 is used to support and guide the rotation and movement of the filter cylinder 4, and includes two first limiting posts 51 and two second limiting posts 52. The two first limiting posts 51 are fixed to the upper end face of the platform 7 and are spaced apart along the axial direction of the filter cylinder 4 to support the filter cylinder 4 from below. The two second limiting posts 52 are correspondingly arranged above the first limiting posts 51, and are located above the filter cylinder 4 to restrict the upward movement of the filter cylinder 4.

[0033] Two first limiting posts 51 are symmetrically arranged front and back, and two second limiting posts 52 are also symmetrically arranged front and back. The filter cylinder 4 is placed between the two first limiting posts 51 and the two second limiting posts 52. At this time, the filter cylinder 4 is in contact with the four limiting posts and rotates together with them when rotating. The four limiting posts can restrict the axial movement of the filter cylinder 4, so that the filter cylinder 4 can make stable axial movement.

[0034] Installation of the second limiting post 52: Since the second limiting post 52 is located above the first limiting post 51, an installation structure needs to be designed. The second limiting post 52 is fixed to the platform 7 by the mounting bracket 54. The mounting bracket 54 includes two support posts 541, which are fixed to the platform 7. A horizontal plate 542 is connected to the upper end of the support post 541, and a corner plate 543 is provided at the lower end of the horizontal plate 542. The second limiting post 52 is rotatably mounted on the corner plate 543.

[0035] Cutting Structure 6: The cutting structure 6 is used to cut the filter cartridge 4 into sections, and includes a cutting cylinder 61 and a cutting blade 62. The cutting cylinder 61 is fixed on the platform 7, and its piston end is connected to the cutting blade 62. The cutting blade 62 is located above the filter cartridge 4. The cutting cylinder 61 controls the cutting blade 62 to move up and down through its extension and retraction. When the cutting blade 62 descends, it contacts the rotating filter cartridge 4. The rotating filter cartridge 4 is cut by the cutting blade 62 while rotating. When the filter cartridge 4 has rotated one revolution, it can be cut off.

[0036] Output after the filter cartridge is cut into 4 sections: One of the first limiting posts 51 is divided into two parts: a fixed section 511 and a discharge section 512. The axes of the two parts coincide and have the same diameter. The fixed section 511 is rotatably supported by two vertical plates 513, which are fixed to the platform 7 to ensure the stability of the fixed section 511. The discharge section 512 is rotatably supported by two lifting plates 514, which are fixed to a lifting cylinder 515. The lifting cylinder 515 is mounted on the platform 7 and controls the lifting and lowering of the discharge section 512 through its extension and retraction. When the filter cartridge 4 is cut, the discharge section 512 descends. The cut filter cartridge 4 will roll towards the descending discharge section 512 due to gravity and eventually roll down to complete the discharge.

[0037] Axis positioning structure 8: used to restrict the axial movement of filter cylinder 4, and also a structure for quantitatively cutting filter cylinder 4, which can cut filter cylinder 4 into filter cylinder 4 segments of the same length.

[0038] The axial positioning structure 8 includes a fixed column 81, an extension plate 82, a positioning cylinder 83, and a positioning column 84. The fixed column 81 is fixed to the upper surface of the platform 7, serving as a support base. An extension plate 82 is fixed to one side of the fixed column 81, extending horizontally, and the positioning cylinder 83 is fixed on it. The piston end of the positioning cylinder 83 is rotatably connected to the positioning column 84, and the axis of the positioning column 84 coincides with the axis of the filter cartridge 4. When the filter cartridge 4 moves axially and contacts the positioning column 84, the positioning column 84 performs a positioning function, ensuring the accuracy of the cutting position.

[0039] Stress relief structure 9: The stress relief structure 9 is used to release the force exerted on the positioning column 84 by the filter cartridge 4. It includes an operating table 91, guide rails 92, guide bars 93, a first side plate 94, a second side plate 95, a tension spring 96, and a stroke detection device 10. The operating table 91 serves as the base of the entire cartridge segmentation device 3 and is located below the platform 7. The upper end face of the operating table 91 is provided with two parallel guide rails 92, and the lower end face of the platform 7 is provided with two parallel guide bars 93. The guide bars 93 are slidably embedded in the guide rails 92, allowing the platform 7 to slide along the direction of the guide rails 92 on the operating table 91.

[0040] A first side plate 94 is fixed on the operating table 91, and a second side plate 95 is fixed on the lower end face of the table 7. A tension spring 96 connects the first side plate 94 and the second side plate 95. The tension spring 96 is stretched when the table 7 slides; the sliding of the table 7 is mainly provided by the axially moving filter cylinder 4. When the filter cylinder 4 abuts against the positioning post 84, it applies a pushing force to the positioning post 84. This pushing force is transmitted to the entire table 7, causing the table 7 to move; at this time, the tension spring 96 is stretched, and the stretched tension spring 96 also provides a reaction force to the filter cylinder 4, so that the filter cylinder 4 can firmly abut against the positioning post 84, so that the filter cylinder 4 will not shake during cutting.

[0041] The stress relief structure 9 also includes a stroke detection device 10 for controlling the movement distance of the control panel 7. The stroke detection device 10 includes a metal detector 101 fixed to the lower end face of the control panel 7 and a metal block 102 fixed to the upper end face of the control table 91. When the control panel 7 slides until the metal detector 101 detects the metal block 102, it indicates that the movement distance has reached the set value, triggering the subsequent cutting action.

[0042] After being triggered, the cutting cylinder 61 starts working, driving the cutting blade 62 to descend and cut the filter cylinder 4. At the same time, the positioning cylinder 83 retracts the positioning column 84. After being cut, the filter cylinder 4 is unrestricted at both ends and will slide down from the discharge section 512.

[0043] Work process See Figure 7-10 The working process of this embodiment is as follows: First, the meltblown equipment ablates molten PP material into filaments, which adhere to the fixed shaft of the forming equipment 1 to form a filter cylinder 4. The filter cylinder 4 is pulled into the cylinder conveying equipment 2 and enters between the rotating roller 25 and the limiting roller 26 through the through hole 22. The motor is started to drive the limiting roller 26 to rotate, which in turn drives the filter cylinder 4 to rotate. As the inclined rotating roller 25 rotates, it pushes the filter cylinder 4 to move along the axial direction towards the cylinder segmenting equipment 3.

[0044] After the filter cylinder 4 enters the cylinder segmentation device 3, it is supported by the first limiting post 51 (including the fixed section 511 and the discharge section 512) and the second limiting post 52. While rotating, it moves axially until it contacts the positioning post 84. The filter cylinder 4 pushes the positioning post 84, causing the positioning cylinder 83 to be stressed, which in turn drives the platform 7 to slide along the guide rail 92 on the operating table 91. The tension spring 96 is stretched to buffer the stress. When the platform 7 slides to the point where the metal detector 101 detects the metal block 102, the cutting cylinder 61 is activated, and the cutting blade 62 descends to cut the filter cylinder 4.

[0045] After the cutting is completed, the positioning cylinder 83 retracts the positioning column 84, releasing the axial restriction on the filter cylinder 4. At the same time, the lifting cylinder 515 drives the lifting plate 514 to descend, causing the discharge section 512 to move downward, and the cut filter cylinder 4 slides down from the discharge section 512 to complete the discharge. The tension spring 96 then pulls the platform 7 back to its initial position along the guide rail 92, preparing for the next round of segmentation operation.

[0046] In this embodiment, the rotating roller 25 and limiting roller 26 of the cylinder conveying device 2 ensure smooth conveying of the filter cylinder 4, while the limiting structure 5, cutting structure 6, axis positioning structure 8, and stress relief structure 9 of the cylinder segmenting device 3 achieve precise positioning, efficient cutting, and stress relief. All components work together to ensure the stability and automation of the equipment, making it suitable for continuous production of meltblown filter cylinders 4.

[0047] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A meltblown filter cartridge production apparatus, characterized in that: The equipment includes a meltblown equipment, a tube forming equipment (1), a tube conveying equipment (2), and a tube segmentation equipment (3); the tube conveying equipment (2) includes two symmetrically arranged mounting plates (21), and the mounting plates (21) are provided with through holes (22) for conveying the filter tube (4); cylinders (23) are provided on the opposite sides of the two mounting plates (21), and the piston end of the cylinder (23) is connected to a rotating roller (25) through a ball joint (24). The axis of the rotating roller (25) is inclined relative to the axis of the filter tube (4); two limiting rollers (26) are also provided between the mounting plates (21). The axis of the limiting roller (26) is parallel to the axis of the filter tube (4) and is located below the rotating roller (25). One of the limiting rollers (26) is connected to an electric motor at its end.

2. The meltblown filter cartridge production apparatus according to claim 1, characterized in that: The cylinder (23) is mounted on the mounting plate (21) via the mounting frame (27), and the mounting frame (27) moves on the mounting plate (21) via the screw and nut mechanism (28); the screw and nut mechanism (28) includes a slide rail (281) with a groove (282), the slide rail (281) is fixed on the mounting plate (21), a slider (283) is provided in the groove (282), the slider (283) is fixedly connected to the mounting frame (27), two fixing plates (284) are provided on one side of the slide rail (281), a screw (285) is rotatably provided between the fixing plates (284), and the screw (285) is threadedly connected to the mounting frame (27).

3. The meltblown filter cartridge production apparatus according to claim 2, characterized in that: The cylinder segmentation device (3) includes a platform (7) and a limiting structure (5) and a cutting structure (6) disposed on the upper end of the platform (7); the limiting structure (5) includes two first limiting posts (51) disposed on the upper end of the platform (7), and two second limiting posts (52) disposed above the first limiting posts (51); the filter cylinder (4) is positioned between the first limiting posts (51) and the second limiting posts (52), and the first limiting posts (51) and the second limiting posts (52) are in contact with the filter cylinder (4) and rotate with the filter cylinder (4); the cutting structure (6) includes a cutting cylinder (61), and the piston end of the cutting cylinder (61) is provided with a cutting blade (62), the cutting blade (62) is located above the filter cylinder (4), and the cutting blade (62) moves up and down under the control of the cutting cylinder (61).

4. The meltblown filter cartridge production apparatus according to claim 3, characterized in that: The cylinder segmentation device (3) further includes an axis positioning structure (8), which includes a fixed column (81) set on the upper end face of the platform (7), an extension plate (82) fixed on one side of the fixed column (81), a positioning cylinder (83) fixed on the extension plate (82), and a positioning column (84) rotatably connected to the piston end of the positioning cylinder (83). The axis of the positioning column (84) coincides with the axis of the filter cylinder (4).

5. The meltblown filter cartridge production apparatus according to claim 4, characterized in that: One of the first limiting posts (51) is divided into a fixed section (511) and a discharge section (512) with overlapping axes, and the fixed section (511) and the discharge section (512) have the same diameter; the fixed section (511) is rotatably disposed between the two vertical plates (513), and the discharge section (512) is rotatably disposed between the two lifting plates (514), and the lifting plate (514) is fixed on the lifting cylinder (515).

6. The meltblown filter cartridge production apparatus according to claim 5, characterized in that: The second limiting post (52) is mounted on the platform (7) via a mounting bracket (54). The mounting bracket (54) includes two support posts (541). A horizontal plate (542) is provided at the upper end of the support post (541), and a corner plate (543) is provided at the lower end of the horizontal plate (542). The second limiting post (52) is rotatably mounted on the corner plate (543).

7. The meltblown filter cartridge production apparatus according to claim 6, characterized in that: The cylinder segmentation device (3) further includes a stress relief structure (9), which is used to release the force exerted by the filter cylinder (4) against the positioning column (84); The stress relief structure (9) includes an operating table (91), two parallel guide rails (92) disposed on the upper end of the operating table (91), and two parallel guide bars (93) disposed on the lower end face of the platform (7). The guide bars (93) are slidably disposed in the guide rails (92). A first side plate (94) is disposed on the operating table (91), and a second side plate (95) is disposed on the lower end face of the platform (7). A tension spring (96) is disposed between the first side plate (94) and the second side plate (95).

8. The meltblown filter cartridge production apparatus according to claim 7, characterized in that: The stress relief structure (9) is also provided with a stroke detection device (10), which is used to control the distance the platform (7) moves; the stroke detection device (10) includes a metal detector (101) disposed on the lower end face of the platform (7) and a metal block (102) disposed on the upper end face of the operating table (91).

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