A melt filter element with repeatable cleanable anti-blocking

By designing docking and connecting mechanisms, the problem of long cleaning time for existing melt filter cartridges has been solved, achieving more efficient filter cartridge cleaning and avoiding the existence of cleaning dead corners.

CN224388195UActive Publication Date: 2026-06-23ZHEJIANG JIUYU TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG JIUYU TECH CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-23

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    Figure CN224388195U_ABST
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Abstract

The utility model discloses a kind of melt filter element with repeatable cleaning anti-blocking, it is related to melt filter element field, including outer fixed cylinder, the bottom end of outer fixed cylinder is open structure, the outer wall lower side of outer fixed cylinder is connected with lower connecting cylinder by connecting mechanism, the top opening of lower connecting cylinder is aligned with the bottom opening of outer fixed cylinder and equal, equidistantly be provided with into hole on the outer periphery of outer fixed cylinder, the top end of outer fixed cylinder is integrally formed with the hexagonal end head projecting upward, the inside of outer fixed cylinder and lower connecting cylinder is equipped with multiple filter elements by docking mechanism, multiple filter elements are in mutual sleeve state.The utility model is equipped with docking mechanism and connecting mechanism, can realize multiple filter elements are extracted simultaneously, to realize cleaning synchronously under the premise of dispersion, not only have higher cleaning efficiency, but also avoid the existence of cleaning dead angle.
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Description

Technical Field

[0001] This utility model relates to the field of melt filter elements, specifically a melt filter element that can be repeatedly cleaned and prevents clogging. Background Technology

[0002] The melt filter element uses metal filter media such as stainless steel fiber sintered felt, iron-chromium-aluminum fiber felt, nickel fiber felt, stainless steel special mesh, stainless steel sintered five-layer mesh, and stainless steel sintered seven-layer mesh. It can be made into a cylindrical or folded cylindrical structure. The filtration area after folding is 3-5 times that of the cylindrical type. After the polymer melt is molten and extruded, most of the impurities are intercepted after passing through the filter element of the melt filter composed of multiple layers of filter mesh. The relatively clean melt enters the spinning head after passing through the metering device.

[0003] In the existing technology, when cleaning the solvent filter element, the general method is to clean the whole thing at the same time, that is, to clean multiple filter elements installed inside the outer fixed cylinder simultaneously. This method, whether using high-pressure water gun cleaning or ultrasonic cleaning, has the problem of long cleaning time, because the water flow impact force gradually decreases as it flows inward, thus requiring more time. Utility Model Content

[0004] The purpose of this invention is to provide a melt filter element that can be repeatedly cleaned and prevents clogging, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a melt filter element with reusable cleaning and anti-clogging properties, comprising an outer fixed cylinder, the bottom end of which is open, a lower connecting cylinder connected to the lower outer wall of the outer fixed cylinder via a connecting mechanism, the top opening of the lower connecting cylinder being aligned and equal to the bottom opening of the outer fixed cylinder, inlet holes being equidistantly provided on the outer periphery of the outer fixed cylinder, and an upwardly protruding hexagonal end integrally formed at the top of the outer fixed cylinder, and multiple filter elements being installed inside the outer fixed cylinder and the lower connecting cylinder via a docking mechanism, the multiple filter elements being interlocked.

[0006] As a further embodiment of this utility model: the connecting mechanism includes two fixing hoops that are snapped into the docking position of the outer fixing cylinder and the lower connecting cylinder. The inner circumference of the fixing hoops is provided with a snap-fit ​​groove in an annular structure. The lower outer wall of the outer fixing cylinder and the outer wall of the lower connecting cylinder are provided with a snap-fit ​​ring that is opposite to the snap-fit ​​groove.

[0007] As a further embodiment of this utility model: the connecting mechanism also includes integrally formed mating plates at both ends of the fixing hoop, the locking bolts pass through the round holes of the two mating plates, and a locking nut is threaded onto one end of the outer wall of the locking bolts.

[0008] As a further embodiment of this utility model: the docking mechanism includes multiple upper annular grooves formed at the bottom of the inner wall of the outer fixed cylinder, and multiple lower annular grooves formed at the bottom of the inner wall of the upper half of the lower connecting cylinder, with the upper and lower annular grooves of equal diameter aligned one by one in the vertical direction.

[0009] As a further embodiment of this utility model: the top and bottom ends of multiple filter elements with different diameters are respectively secured to the inner walls of the upper and lower annular grooves.

[0010] As a further improvement of this utility model: multiple sets of the inlet holes are equidistantly distributed in the vertical direction, and the inlet holes are in the form of a vertical elongated strip structure.

[0011] As a further improvement of this utility model, a sealing ring is installed at the joint between the snap ring and the snap groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By setting up docking and connecting mechanisms, multiple filter elements can be extracted simultaneously, thereby achieving simultaneous cleaning while maintaining dispersion. This not only improves cleaning efficiency but also avoids the existence of cleaning dead spots. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0016] Figure 3 This is a schematic diagram of the docking mechanism of this utility model.

[0017] In the diagram: 1. Outer fixing cylinder; 2. Hexagonal end; 3. Inlet hole; 4. Lower connecting cylinder; 5. Fixing clamp; 6. Snap-fit ​​groove; 7. Connecting plate; 8. Locking bolt; 9. Locking nut; 10. Filter element; 11. Snap-fit ​​ring; 12. Upper ring groove; 13. Lower ring groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-3In this embodiment of the present invention, a melt filter element with reusable cleaning and anti-clogging properties includes an outer fixed cylinder 1 with an open bottom. A lower connecting cylinder 4 is connected to the lower outer wall of the outer fixed cylinder 1 via a connecting mechanism. The top opening of the lower connecting cylinder 4 is aligned with and equal to the bottom opening of the outer fixed cylinder 1. Inlet holes 3 are provided at equal intervals on the outer periphery of the outer fixed cylinder 1. A hexagonal end 2 protruding upward is integrally formed at the top of the outer fixed cylinder 1. Multiple filter elements 10 are installed inside the outer fixed cylinder 1 and the lower connecting cylinder 4 via a docking mechanism, and the multiple filter elements 10 are nested together.

[0020] In this embodiment: after the device is disassembled from the filter cartridge and before cleaning, the connection between the outer fixed cylinder 1 and the lower connecting cylinder 4 is released by disconnecting the connecting mechanism. Then the lower connecting cylinder 4 can be separated from the outer fixed cylinder 1. At this time, the docking mechanism on the lower connecting cylinder 4 is separated from the multiple filter elements 10. Then the multiple filter elements 10 can be pulled out one by one. The other part of the docking mechanism between the multiple filter elements 10 and the outer fixed cylinder 1 is cleaned separately. In this way, a more thorough cleaning can be performed to achieve a more complete cleaning purpose.

[0021] Please refer to this carefully. Figure 1 and Figure 2 The connecting mechanism includes two fixing hoops 5 that are snapped into the mating position of the outer fixing cylinder 1 and the lower connecting cylinder 4. The inner circumference of the fixing hoops 5 is provided with a ring-shaped snapping groove 6. The lower outer wall of the outer fixing cylinder 1 and the outer wall of the lower connecting cylinder 4 are provided with a snapping ring 11 that is opposite to the snapping groove 6. The connecting mechanism also includes mating plates 7 integrally formed at both ends of the fixing hoops 5. The locking bolt 8 passes through the round holes of the two mating plates 7. One end of the outer wall of the locking bolt 8 is threaded with a locking nut 9.

[0022] In this embodiment: when disassembling the lower connecting cylinder 4, a wrench is used to align with the outer wall of the locking nut 9, and the locking nut 9 is rotated by the wrench to separate the locking nut 9 from the locking bolt 8. When the locking bolt 8 and the locking nut 9 are completely separated, the two connecting plates 7 can be pulled apart. The connecting plates 7 cause the fixing clamp 5 to separate from the outer fixing cylinder 1 and the lower connecting cylinder 4, thus achieving the disassembly of the lower connecting cylinder 4.

[0023] Then, multiple filter elements 10 can be extracted and cleaned one by one. After cleaning, the filter elements 10 are reinserted through the docking mechanism, and the lower connecting cylinder 4 is connected to the bottom opening of the outer fixed cylinder 1. Then, the two fixing clamps 5 are clamped at the docking position of the outer fixed cylinder 1 and the lower connecting cylinder 4. At this time, the fixing clamps 5 drive the snap-fit ​​groove 6 to dock with the snap-fit ​​ring 11 to avoid misalignment.

[0024] Please refer to this carefully. Figure 3The docking mechanism includes multiple upper ring grooves 12 formed at the bottom of the inner wall of the outer fixed cylinder 1, and multiple lower ring grooves 13 formed at the bottom of the inner wall of the upper half of the lower connecting cylinder 4. The upper ring grooves 12 and lower ring grooves 13 of equal diameter are aligned one by one in the vertical direction. The top and bottom of multiple filter elements 10 of different diameters are respectively stuck in the inner walls of the upper ring grooves 12 and lower ring grooves 13.

[0025] In this embodiment: After the lower connecting cylinder 4 is disassembled, the lower connecting cylinder 4 is pulled to separate from the outer fixing cylinder 1. At this time, the lower connecting cylinder 4 drives the lower annular groove 13 to separate from the bottom of the multiple filter elements 10. After the lower connecting cylinder 4 is disassembled, the filter elements 10 are pulled outward to separate the top of the filter elements 10 from the upper annular groove 12. At this time, the multiple filter elements 10 can be disassembled.

[0026] When the filter element 10 is installed, the upper ring groove 12 and the lower ring groove 13 limit the position of multiple filter elements 10. This method can ensure that the filter element 10 is installed in the installation position.

[0027] Please refer to this carefully. Figure 1 Multiple sets of inlet holes 3 are equidistantly distributed in the vertical direction, and the inlet holes 3 have a vertical elongated strip structure.

[0028] In this embodiment, the vertically equidistant design of multiple sets of inlet holes 3 facilitates the movement of raw materials into the multiple filter elements 10.

[0029] Please refer to this carefully. Figure 2 A sealing ring is installed at the joint between the snap ring 11 and the snap groove 6.

[0030] In this embodiment, the design of the sealing ring can improve the sealing performance at the joint.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A melt filter element with reusable cleaning and anti-clogging properties, comprising an outer fixed cylinder (1), characterized in that, The bottom end of the outer fixing cylinder (1) is open. The lower connecting cylinder (4) is connected to the lower wall of the outer fixing cylinder (1) through a connecting mechanism. The top opening of the lower connecting cylinder (4) is aligned with and equal to the bottom opening of the outer fixing cylinder (1). The outer fixing cylinder (1) has equidistant entry holes (3) on its outer periphery. The top of the outer fixing cylinder (1) has an integrally formed hexagonal end (2) protruding upward. Multiple filter elements (10) are installed inside the outer fixing cylinder (1) and the lower connecting cylinder (4) through a docking mechanism. The multiple filter elements (10) are in a nested state.

2. A melt filter element with reusable cleaning and anti-clogging properties according to claim 1, characterized in that, The connecting mechanism includes two fixing hoops (5) that are snapped into the docking position of the outer fixing cylinder (1) and the lower connecting cylinder (4). The inner circumference of the fixing hoops (5) is provided with a snap-fit ​​groove (6) in an annular structure. The lower outer wall of the outer fixing cylinder (1) and the outer wall of the lower connecting cylinder (4) are provided with a snap-fit ​​ring (11) that is opposite to the snap-fit ​​groove (6).

3. A melt filter element with reusable cleaning and anti-clogging properties according to claim 2, characterized in that, The connecting mechanism also includes integrally formed mating plates (7) at both ends of the fixing hoop (5), and locking bolts (8) pass through the round holes of the two mating plates (7), and a locking nut (9) is threaded to one end of the outer wall of the locking bolt (8).

4. A melt filter element with reusable cleaning and anti-clogging properties according to claim 3, characterized in that, The docking mechanism includes multiple upper annular grooves (12) formed at the bottom of the inner wall of the outer fixed cylinder (1), and multiple lower annular grooves (13) formed at the bottom of the inner wall of the upper half of the lower connecting cylinder (4). The upper annular grooves (12) and lower annular grooves (13) of equal diameter are aligned one by one in the vertical direction.

5. A melt filter element with reusable cleaning and anti-clogging properties according to claim 4, characterized in that, The top and bottom of multiple filter elements (10) of different diameters are respectively locked in the inner walls of the upper ring groove (12) and the lower ring groove (13).

6. A melt filter element with reusable cleaning and anti-clogging properties according to claim 5, characterized in that, The multiple sets of entry holes (3) are equidistantly distributed in the vertical direction, and the entry holes (3) are in the form of a vertical elongated strip structure.

7. A melt filter element with reusable cleaning and anti-clogging properties according to claim 6, characterized in that, A sealing ring is installed at the joint between the snap ring (11) and the snap groove (6).