Plastic film crystal point filtering assembly

Abstract

The utility model discloses a plastic film crystal point filter assembly, which relates to the technical field of plastic film processing, and comprises a filter element, a slip ring and a filter plate, an inner flow channel is arranged in the filter element, and the side wall of the filter element is provided with filter holes communicated with the inner flow channel. The inner ring of the sliding ring is slidably connected to the filter element along the length direction of the filter element. The filter plate comprises a plurality of fan-shaped filter parts, the plurality of filter parts are magnetically attracted and connected to the slip ring around the peripheral side of the outer ring of the slip ring, and the adjacent filter parts are connected with each other. Due to the fact that the filter plate is connected with the sliding ring in a magnetic attraction mode, when the filter plate needs to be cleaned, only the multiple filter parts of the filter plate need to be detached from the sliding ring in sequence, the filter plate is directly close to the sliding ring to be connected in a magnetic attraction mode after being cleaned, the sliding ring does not need to be detached, the filter element and the filter plate do not need to be detached together, detaching is rapid and convenient, and time and labor are saved. In addition, the position of the filter plate can be adjusted by sliding the sliding ring relative to the filter element, and the filter effect can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic film processing, and particularly relates to a plastic film crystal point filtering component. Background Art

[0002] During the film processing process, due to factors such as the shearing action of the plastic molecular structure and external influences, a small amount of crystal points are likely to be generated. If these crystal points cannot be filtered out in time, it will directly affect the appearance quality and physical properties of the product, and even cause malfunctions of mechanical equipment.

[0003] The prior art with the publication number of CN220129475U discloses an improved transparent crystal point filter device, which includes a cylinder body. The outer walls of the cylinder body, the discharge channel and the feed channel are fixedly installed with an intelligent monitoring structure; a multi-layer disc-shaped filtering mechanism is fixedly installed inside the cylinder body, and an easy-to-dismount and install mechanism is installed at the left and right ends of the multi-layer disc-shaped filtering mechanism inside the cylinder body. Through the above method, the multi-layer disc-shaped filtering mechanism of the utility model not only has a high filtering accuracy compared with the traditional filter screen type filtering device, increases the surface area of the extrusion back pressure, reduces the back pressure effect, but also has a large dirt holding capacity and is not easy to block; the easy-to-dismount and install mechanism greatly facilitates the operator to disassemble and install the multi-layer disc-shaped filtering mechanism to complete the filter element cleaning work; the pressure is monitored through the intelligent monitoring structure, and the blockage of the filter can be found in time; the melt temperature in the monitoring device can help control the dissolution and decomposition of crystals to ensure the filtering effect of the filter.

[0004] However, the existing filter device still has deficiencies. For example, when the disc-shaped filtering mechanism needs to be cleaned, it is necessary to first disassemble and separate the filter element from the cylinder body, and then disassemble all the filtering mechanisms together with the filter element. After cleaning the filtering mechanism, it is installed back along the original path. The whole disassembly and installation process is cumbersome and time-consuming. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies, and propose a plastic film crystal point filtering component to solve the technical problem that when the disc-shaped filtering mechanism of the filter device in the prior art needs to be cleaned, it is necessary to first disassemble and separate the filter element from the cylinder body, and then disassemble all the filtering mechanisms together with the filter element. After cleaning the filtering mechanism, it is installed back along the original path. The whole disassembly and installation process is cumbersome and time-consuming.

[0006] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a plastic film crystal point filtering component, including:

[0008] A filter element, with an inner flow channel provided inside, and filter holes communicating with the inner flow channel are provided on the side wall of the filter element;

[0009] A slip ring, the inner ring of the slip ring is slidably sleeved on the filter element along the length direction of the filter element; and

[0010] A filter plate, including a plurality of fan-shaped filtering parts, and the plurality of filtering parts are magnetically connected to the outer circumference of the slip ring around the outer circumference of the slip ring, and adjacent filtering parts are in contact with each other.

[0011] In some embodiments, the filter element is provided with a slide bar along its length direction, and the slip ring is provided with a card slot adapted to the slide bar, and the card slot is in sliding fit with the slide bar.

[0012] In some embodiments, an installation groove is formed along the outer circumference of the outer ring of the slip ring, an annular magnet is arranged in the installation groove, and the plurality of filtering parts are inserted around the installation groove and magnetically connected to the annular magnet.

[0013] In some embodiments, the annular magnet protrudes from the bottom of the installation groove, and a slot is formed at the bottom of the filtering part, and the slot is in plug-in fit with the annular magnet.

[0014] In some embodiments, the plastic film crystal point filtering assembly further includes a tightening structure, and the tightening structure connects the slip ring and the slide bar and is used for locking or unlocking the slip ring.

[0015] In some embodiments, the tightening structure includes a chute formed along the length direction of the slide bar and a tightening screw, the tightening screw passes through the slip ring and is threadedly connected to the chute, and when the tightening screw disengages from the chute, the locking of the slip ring can be released, and when the tightening screw is threadedly connected to the chute, the slip ring can be locked.

[0016] In some embodiments, the filter plate includes a first filtering part and a second filtering part, the arcs of the first filtering part and the second filtering part are the same, and the first filtering part and the second filtering part can form a complete annular filter plate when spliced.

[0017] In some embodiments, at least one of the first filtering part or the second filtering part is provided with a magnetic attracting part at the splicing position, and the first filtering part and the second filtering part can be magnetically connected when spliced.

[0018] In some embodiments, the number of the slip rings and the filter plates are both multiple, the multiple slip rings are arranged at intervals, and each filter plate is magnetically connected to the outer circumference of the corresponding slip ring.

[0019] In some embodiments, the number of the filter holes is multiple, and the multiple filter holes are uniformly arranged along the length direction and the outer circumference of the filter element.

[0020] Compared with the prior art, the plastic film crystal point filtering assembly provided by the present utility model can be installed and used in a film crystal point filter device. The filter holes provided in the filter plate and the filter element of the plastic film crystal point filtering assembly can be used to filter film crystal points. Since the filter plate is magnetically connected to the slip ring, when the filter plate needs to be cleaned, only the multiple filtering parts of the filter plate need to be disassembled from the slip ring in sequence, and after the filter plate is cleaned, it can be directly magnetically connected to the slip ring by approaching it, without disassembling the slip ring, let alone disassembling the filter element together with the filter plate. The disassembly and assembly are quick, convenient, time-saving and labor-saving. In addition, the position of the filter plate can be adjusted by sliding the slip ring relative to the filter element, which is beneficial to improving the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a plastic film crystal point filtering assembly according to an embodiment of the present utility model;

[0022] Figure 2 is a schematic structural diagram of a plastic film crystal point filtering assembly according to another embodiment of the present utility model;

[0023] Figure 3 is a schematic connection diagram of a filter element and a slip ring provided by an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] In order to solve the technical problem that in the prior art, when cleaning a disc-shaped filtering mechanism of a filter device, it is necessary to first disassemble and separate the filter element from the cylinder body, then disassemble all the filtering mechanisms together with the filter element, and then reinstall them along the original path after cleaning the filtering mechanisms. The whole disassembly and assembly process is cumbersome, time-consuming and laborious. The present utility model provides a plastic film crystal point filtering assembly, which can realize the quick disassembly and assembly of the filter plate, saving time and labor and facilitating the cleaning of the filter plate. In addition, one or more filter plates can be disassembled and assembled separately, without the need to disassemble and assemble all the filter plates as a whole, and a specific filter plate can be cleaned targeted.

[0026] It should be noted that the plastic film crystal point filtering assembly described in the present utility model is used in but not limited to filter devices, etc. For the convenience of description, in the present utility model, only the application of the plastic film crystal point filtering assembly to a filter device is taken as an example for description, and the principle of the plastic film crystal point filtering assembly applied to other types of equipment is substantially the same as that applied to a filter device, and will not be elaborated here one by one.

[0027] Please refer to Figure 1 , Figure 1Schematic diagram of the structure of the plastic film crystal point filtering component in an embodiment of the present utility model. The plastic film crystal point filtering component includes a filter element 1, a slip ring 2, and a filter plate 3. An inner flow channel 11 is provided inside the filter element 1, and filter holes 12 communicating with the inner flow channel 11 are formed on the side wall of the filter element 1. The number of filter holes 12 is multiple, and the multiple filter holes 12 are evenly arranged along the length direction and the circumferential side of the filter element 1, which is beneficial to enhancing the filtering effect of the filter element. The slip ring 2 is annular, having an inner ring and an outer ring, and its inner ring is slidably connected to the filter element 1 along the length direction of the filter element 1, so that the slip ring 2 can slide relative to the filter element 1 to adjust the position of the slip ring. The filter plate 3 includes multiple fan-shaped filtering parts 31, and the multiple filtering parts 31 are magnetically connected to the outer circumferential side of the slip ring 2 around the slip ring 2, and adjacent filtering parts 31 are connected to each other, so that the multiple filtering parts 31 are magnetically connected to the slip ring 2. When the filter plate 3 needs to be disassembled, only need to hold the filtering part 31 by hand, apply a pulling force to the filtering part 31, and drive the filtering part 31 to disengage from the slip ring 2. The filter plate 3 can be brought closer to the slip ring 2 after cleaning to be magnetically connected to the slip ring 2. The disassembly and assembly of the filter plate 3 are fast and convenient. During the disassembly and assembly of the filter plate 3, it is not necessary to disassemble the slip ring 2 and the filter element 1 together, which saves time and effort.

[0028] In this embodiment, the filter plate 3 is a high-mesh filter screen, which is used to filter the melt in contact with it and filter out the crystal point impurity particles in the melt. The melt filtered by the filter plate 3 is further filtered through the filter holes 12 of the filter element 1, flows into the inner flow channel 11 of the filter element 1, and flows out from the end of the inner flow channel 11 to the next process.

[0029] The number of the filter plate 3 and the slip ring 2 is not limited. In one embodiment, please refer to Figure 2 , both the number of the slip ring 2 and the filter plate 3 is multiple, the multiple slip rings 2 are arranged at intervals, and each filter plate 3 is magnetically connected to the outer ring of the slip ring 2 correspondingly. Through the combined action of the multiple filter plates 3, the filtering accuracy of the melt can be enhanced, and the surface area of the melt extrusion back pressure can also be increased, reducing the effect of the back pressure.

[0030] In one embodiment, please refer to Figure 1 , a slide bar 13 is arranged on the filter element 1 along its length direction, and the slip ring 2 is provided with a card slot (not shown in the figure) adapted to the slide bar 13, and the card slot is in sliding fit with the slide bar 13, so that the slip ring 2 can slide stably back and forth along the length direction of the slide bar 13. The slip ring 2 can adjust its own position during sliding, thereby adjusting the position of the filter plate 3 located on the slip ring 2. When the distance between two adjacent filter plates 3 is different, the surface area of the melt extrusion back pressure also changes, and the generated filtering effect is also different. Therefore, the distance between adjacent filter plates 3 can be selectively adjusted according to the filtering effect required by the melt.

[0031] In one embodiment, please refer to Figure 3, an installation groove 21 is formed along the circumferential side of the outer ring of the slip ring 2. An annular magnet (not shown in the figure) is arranged in the installation groove 21. A plurality of filtering parts 31 are inserted around the installation groove 21 and magnetically connected to the annular magnet, so as to complete the detachable connection between the plurality of filtering parts 31, i.e., the filter plate 3 and the slip ring 2, which is convenient for disassembly and assembly when the filter plate 3 needs to be cleaned later.

[0032] Furthermore, the annular magnet protrudes from the bottom of the installation groove 21. A slot (not shown in the figure) is formed at the bottom of the filtering part 31. The slot is inserted and matched with the annular magnet. The filtering part 31 can be magnetically connected to the annular magnet while being inserted into the annular magnet, which is beneficial to further enhance the connection stability between the filter plate 3 and the slip ring 2. In other embodiments, the annular magnet can also be connected to the slip ring 2 in an embedded manner, and the outer surface of the annular magnet is flush with the bottom of the installation groove 21.

[0033] In one embodiment, please refer to Figure 2 , the plastic film crystal point filtering assembly further includes a tightening structure, which connects the slip ring 2 and the slide bar 13 and is used to lock or unlock the slip ring 2. When the tightening structure locks the slip ring 2, the slip ring 2 cannot slide relative to the slide bar 13. At this time, the filter plate 3 on the slip ring 2 can stay stably in the current position. When the tightening structure unlocks the slip ring 2, the slip ring 2 can slide reciprocally relative to the slide bar 13, so as to adjust the position of the slip ring 2, and thus adjust the position of the filter plate 3.

[0034] In one embodiment, please refer to Figure 2 , the tightening structure includes a chute 131 formed along the length direction of the slide bar 13 and a tightening screw (not shown in the figure). The tightening screw passes through the slip ring 2 and is threadedly connected to the chute 131. When the tightening screw disengages from the chute 131, the locking of the slip ring 2 can be released, and when the tightening screw is threadedly connected to the chute 131, the slip ring 2 can be locked. In this embodiment, the chute 131 extends along the entire length of the slide bar 13, so that the slip ring 2 can be locked or unlocked at any position of the chute 131 by the tightening screw, which is convenient to use.

[0035] In one embodiment, please refer to Figure 1 , the filter plate 3 includes a first filtering part 32 and a second filtering part 33. The arcs of the first filtering part 32 and the second filtering part 33 are the same. The first filtering part 32 and the second filtering part 33 can form a complete annular filter plate when spliced. The number of filtering parts in this embodiment is two. In other embodiments, the number of filtering parts can also be three or more. It should be emphasized that the arcs of the plurality of filtering parts can be the same or different. After the plurality of filtering parts are magnetically connected around the circumferential side of the slip ring 2, they can be spliced with each other to form a complete ring.

[0036] In one embodiment, please refer to Figure 1, at least one of the first filtering part 32 and the second filtering part 33 is provided with a magnetic attracting member at the splicing position, and the first filtering part 32 and the second filtering part 33 can be magnetically connected when spliced. In this embodiment, after the first filtering part 32 and the second filtering part 33 are magnetically connected to the slip ring 2, they can also be magnetically connected to each other, which is beneficial to further enhance the connection stability between the first filtering part 32 and the second filtering part 33.

[0037] For a better understanding of the present invention, the following will be combined with Figures 1 to 3 to describe the technical solution of the present invention in detail:

[0038] The plastic film crystal point filtering assembly provided by the present invention can be installed and used in a film crystal point filter device. The filter holes 12 provided in the filter plate 3 and the filter element 1 of the plastic film crystal point filtering assembly can be used to filter film crystal points. Since the filter plate 3 is magnetically connected to the slip ring 2, when the filter plate 3 needs to be cleaned, only the multiple filtering parts 31 of the filter plate 3 need to be disassembled from the slip ring 2 in sequence. After the filter plate 3 is cleaned, it can be directly magnetically connected to the slip ring 2 by approaching it. There is no need to disassemble the slip ring 2, let alone disassemble the filter element 1 together with the filter plate 3. The disassembly and assembly are fast, convenient, time-saving and labor-saving. In addition, the position of the filter plate 3 can be adjusted by sliding the slip ring 2 relative to the filter element 1, which is beneficial to improving the filtering effect.

[0039] The specific embodiments of the present invention described above do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A plastic film crystal point filtering component, characterized in that, Comprising: A filter element, which is provided with an inner flow channel, and filter holes communicating with the inner flow channel are formed in the side wall of the filter element; A slip ring, the inner ring of which is slidably sleeved on the filter element along the length direction of the filter element; and A filter plate, which includes a plurality of fan-shaped filtering parts, and the plurality of filtering parts are magnetically connected to the outer circumference of the slip ring around the outer circumference of the slip ring, and adjacent filtering parts are in contact with each other.

2. The plastic film crystal point filtering component according to claim 1, characterized in that A slide bar is arranged on the filter element along its length direction, and a card slot adapted to the slide bar is formed in the slip ring, and the card slot is in sliding fit with the slide bar.

3. The plastic film crystal point filtering component according to claim 1, characterized in that An installation groove is formed in the outer circumference of the slip ring along its circumference, an annular magnet is arranged in the installation groove, and the plurality of filtering parts are inserted around the installation groove and magnetically connected to the annular magnet.

4. The plastic film crystal point filtering component according to claim 3, characterized in that, The annular magnet protrudes from the bottom of the installation groove, and a slot is formed in the bottom of the filtering part, and the slot is in plug-in fit with the annular magnet.

5. The plastic film crystal point filtering component according to claim 2, characterized in that The plastic film crystal point filtering assembly further includes a tightening structure, and the tightening structure connects the slip ring and the slide bar and is used for locking or unlocking the slip ring.

6. The plastic film crystal point filtering component according to claim 5, wherein, The tightening structure includes a chute formed along the length direction of the slide bar and a tightening screw, the tightening screw penetrates through the slip ring and is threadedly connected to the chute, and the tightening screw can release the locking of the slip ring when disengaging from the chute, and can lock the slip ring when threadedly connected to the chute.

7. The plastic film crystal point filtering component according to claim 1, characterized in that, The filter plate includes a first filtering part and a second filtering part, the arcs of the first filtering part and the second filtering part are the same, and the first filtering part and the second filtering part can form a complete annular filter plate when spliced.

8. The plastic film crystal point filtering component according to claim 7, characterized in that At least one of the first filtering part or the second filtering part is provided with a magnetic attracting part at the splicing position, and the first filtering part and the second filtering part can be magnetically connected when spliced.

9. The plastic film crystal point filtering component according to claim 1, wherein The number of the slip rings and the filter plates is multiple, the multiple slip rings are arranged at intervals, and each filter plate is magnetically connected to the outer circumference of the corresponding slip ring.

10. The plastic film crystal point filtering component according to claim 1, wherein, The number of the filter holes is multiple, and the multiple filter holes are uniformly arranged along the length direction and the circumference of the filter element.

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