Coating filter bag

Abstract

The utility model relates to the technical field of coating filter bags, in particular to a coating filter bag which comprises a filter cartridge, a support ring is fixedly mounted at an upper port of the filter cartridge, a fine screen, a medium screen and a coarse screen are sequentially and fixedly mounted at a lower port of the filter cartridge, and a bag bottom is fixedly mounted at a lower port of the coarse screen. Blocking cloth is detachably installed on the surface of the fine screen, the surface of the middle screen and the surface of the coarse screen, auxiliary hook-and-loop fasteners of annular structures are fixedly installed between the filter cylinder and the fine screen, between the fine screen and the middle screen, between the middle screen and the coarse screen and between the coarse screen and the bag bottom, and two main hook-and-loop fasteners are sewn on the surface of each blocking cloth through needles and threads. According to the coating filter bag, the fine screen, the medium screen and the coarse screen are arranged, and different screens are covered, so that coating with different purities can be conveniently screened, the coating can be conveniently screened according to use requirements, and the use performance of the coating filter bag is improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of paint filter bags, in particular to a paint filter bag. Background Art

[0002] Paint filter bag is a device used to filter solid particles and impurities in paint. It is usually made of high temperature resistant and corrosion resistant materials, such as polyester, polypropylene, etc. The function of the paint filter bag is to intercept impurities and solid particles in the paint through filtering grids or filters with smaller pore sizes to ensure the quality and purity of the paint.

[0003] A Chinese patent with the publication number CN218306509U discloses an anti-corrosion coating filter bag, including a filter bag, a support ring is provided on the filter bag, an injection port is provided on the filter bag, the filter bag includes a filter mechanism, a connector is provided on the outside of the filter mechanism, an outer bag is provided on the connector, a cavity is formed between the outer bag and the filter mechanism, and the filter mechanism includes a first filter layer, a second filter layer is provided on the outside of the first filter layer, and a third filter layer is provided on the outside of the second filter layer. The utility model can form a stepped filtering structure in sequence by providing the first filter layer, the second filter layer, and the third filter layer, and can filter particles of different sizes in the anti-corrosion coating step by step, thereby improving the filtering efficiency and filtering effect. By providing the connector, the outer bag, and the cavity, the part of the anti-corrosion coating that seeps out from the outside of the filter mechanism after filtering will enter the cavity and finally flow out from the bottom of the outer bag. The entire outer part of the filter bag will not be covered with the anti-corrosion coating, thereby avoiding accidental contact and staining, and making the operation more convenient.

[0004] The existing related technologies often have the following defects: the paint has different purity requirements during use, so there are also different screening requirements during the screening process. The existing paint filter bags can often screen paint with one purity requirement. When it is necessary to screen paints of different purities, filter bags with different pore sizes need to be replaced.

[0005] Therefore, the utility model provides a paint filter bag. Utility Model Content

[0006] The utility model aims to solve the shortcoming in the prior art that it is inconvenient to screen the coatings with different purity requirements, and proposes a coating filter bag.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a paint filter bag, including a filter cartridge, the upper port of the filter cartridge is fixedly installed with a support ring, the lower port of the filter cartridge is fixedly installed with a fine screen, a medium screen and a coarse screen in sequence, the lower port of the coarse screen is fixedly installed with a bag bottom, and the surfaces of the fine screen, the medium screen and the coarse screen are all removably installed with a blocking cloth.

[0008] The effects achieved by the above components are: setting fine screens, medium screens and coarse screens, and facilitating the screening of paints of different purity by covering different screens, facilitating the screening of paints according to usage requirements, and improving the performance of the paint filter bag to a certain extent.

[0009] Preferably, a sub-Velcro with a circular structure is fixedly installed between the filter cylinder and the fine screen, the fine screen and the medium screen, the medium screen and the coarse screen, and the coarse screen and the bag bottom; two mother Velcros are sewn on the surface of the baffle cloth, and the sub-Velcros are bonded to the mother Velcro.

[0010] The effect achieved by the above components is: by bonding the two mother Velcros on the baffle cloth to the child Velcros, the screen that is not needed can be quickly covered, thereby meeting the screening needs of coatings with different requirements.

[0011] Preferably, a baffle is slidably mounted on the inner side of the filter cartridge.

[0012] The effect achieved by the above components is: by setting the baffle, it is prevented that the paint falls on the bottom of the bag or the corresponding screen position below to affect the paint screening effect inside the paint filter bag.

[0013] Preferably, an upper pull rope is fixedly connected to the upper surface of the baffle, and a pull ball is fixedly installed on the upper end of the upper pull rope.

[0014] The effect achieved by the above components is: when the upper pull ball is pulled, the upper pull ball will drive the upper pull rope to be pulled.

[0015] Preferably, a pull-down rope is fixedly connected to the lower surface of the baffle, and a pull-down ball is fixedly installed on the lower end of the pull-down rope passing through the bottom of the bag.

[0016] The effect achieved by the above components is that the baffle can be pulled down and adjusted by pulling the pull-down ball and the pull-down rope.

[0017] Preferably, a limit rope is fixedly connected to the side wall of the filter cartridge, and the other end of the limit rope is fixedly connected to a limit ring, and the limit ring is located on the side wall of the upper pull rope.

[0018] The effect achieved by the above components is that the upper pull rope slides on the inner side of the limiting ring, which can avoid the situation in which the upper pull ball falls into the inner side of the paint filter bag and is inconvenient to take out during the filling process.

[0019] Preferably, a tapered rod is threadedly connected to the side wall of the baffle, and a rotating block is fixedly mounted on the end side of the tapered rod.

[0020] The effect achieved by the above components is: by rotating the rotating block, the cone rod is inserted into the interior of the baffle for fixing, so that the position of the baffle can be fixed after moving.

[0021] In summary:

[0022] In the utility model, by setting the above-mentioned structure, a fine screen, a medium screen and a coarse screen are set. By covering the different screens, the screening of paints of different purities is facilitated, the screening of paints according to usage requirements is facilitated, and the performance of the paint filter bag is improved to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the baffle in the utility model;

[0025] Figure 3 For the utility model Figure 2 A magnified image of point A;

[0026] Figure 4 It is a structural schematic diagram of the filter cartridge in the utility model.

[0027] Legend: 1. Filter cartridge; 2. Support ring; 3. Bag bottom; 4. Fine screen; 5. Medium screen; 6. Coarse screen; 7. Cloth stopper; 8. Male Velcro; 9. Female Velcro; 10. Pull-down rope; 11. Pull-down ball; 12. Limiting rope; 13. Pull-up rope; 14. Pull-up ball; 15. Baffle; 16. Cone rod; 17. Rotating block; 18. Limiting ring. DETAILED DESCRIPTION

[0028] Reference Figure 1-4 As shown, the utility model provides a technical solution: a paint filter bag, comprising a filter cartridge 1, and a support ring 2 is fixedly installed on the upper port of the filter cartridge 1.

[0029] The following is a detailed description of its overall specific settings and functions.

[0030] In this embodiment: the lower port of the filter cartridge 1 is fixedly installed with a fine screen 4, a medium screen 5 and a coarse screen 6 in sequence, the lower port of the coarse screen 6 is fixedly installed with a bag bottom 3, and the surfaces of the fine screen 4, the medium screen 5 and the coarse screen 6 are all detachably installed with a baffle 7. The fine screen 4, the medium screen 5 and the coarse screen 6 are provided, and the screening of coatings of different purities is facilitated by covering the different screens, and the screening of coatings according to the use requirements is facilitated, and the use performance of the coating filter bag is improved to a certain extent. A sub-Velcro 8 of a circular ring structure is fixedly installed between the filter cartridge 1 and the fine screen 4, the fine screen 4 and the medium screen 5, the medium screen 5 and the coarse screen 6, and the coarse screen 6 and the bag bottom 3, and two mother Velcro 9 are sewn on the surface of the baffle 7 by needle and thread, and the sub-Velcro 8 and the mother Velcro 9 are bonded to each other. By bonding the two female Velcro strips 9 and the sub Velcro strips 8 on the retaining cloth 7, the screen mesh at the position not needed can be quickly covered, thereby meeting the screening requirements for coatings with different requirements.

[0031] Specifically, a baffle 15 is slidably mounted on the inner side of the filter cartridge 1. By providing the baffle 15, it is prevented that the paint falls on the bag bottom 3 or the corresponding screen position below to affect the paint screening effect inside the paint filter bag.

[0032] The upper surface of the baffle 15 is fixedly connected with an upper pull rope 13, and the upper end of the upper pull rope 13 is fixedly installed with an upper pull ball 14. When the upper pull ball 14 is pulled, the upper pull ball 14 will drive the upper pull rope 13 to be pulled. The lower surface of the baffle 15 is fixedly connected with a lower pull rope 10, and the lower end of the lower pull rope 10 passes through the bag bottom 3 and is fixedly installed with a lower pull ball 11. Pulling the lower pull ball 11 and the lower pull rope 10 can realize the downward adjustment of the baffle 15.

[0033] The side wall of the filter cartridge 1 is fixedly connected to a limit rope 12, and the other end of the limit rope 12 is fixedly connected to a limit ring 18, and the limit ring 18 is located on the side wall of the upper pull rope 13. The upper pull rope 13 slides on the inner side of the limit ring 18, which can avoid the situation that the upper pull ball 14 falls into the inner side of the paint filter bag and is inconvenient to remove during the filling process. The side wall of the baffle 15 is threadedly connected to a cone rod 16, and a rotating block 17 is fixedly installed on the end side of the cone rod 16. By rotating the rotating block 17, the cone rod 16 is inserted into the inside of the baffle 15 for fixing, and the position of the baffle 15 after moving can be fixed.

[0034] Working principle: when it is necessary to screen the paint with different purity requirements, the fine screen 4, the medium screen 5 or the coarse screen 6 that needs to be used can be opened, and the other two screens that do not need to be used can be closed, and the two mother Velcro 9 on the baffle cloth 7 can be bonded to the child Velcro 8, so that the screens that are not needed can be quickly covered, thereby meeting the screening needs of paints with different requirements. Pull the upper pull ball 14, and the upper pull ball 14 will drive the upper pull rope 13 to move. At this time, the inner baffle 15 of the paint filter bag can be moved. After moving the baffle 15 to the position separating the screens, rotate the rotating block 17, and insert the cone rod 16 into the inside of the baffle 15 to fix it. The position of the baffle 15 after moving can be fixed, which avoids the paint falling on the bottom 3 of the bag or the corresponding screen position below and affecting it. The coating screening effect on the inner side of the coating filter bag further improves the screening effect of the coating on the inner side of the coating filter bag. By pulling the pull-down ball 11 and the pull-down rope 10, the pull-down adjustment work of the baffle 15 can be realized, wherein the upper pull rope 13 slides on the inner side of the limit ring 18, which can avoid the upper pull ball 14 falling into the inner side of the coating filter bag and being inconvenient to take out during the filling process. By pulling the upper pull ball 14, the coating filter bag can be turned over at the same time, which facilitates the pouring of the coating located at the bottom side of the baffle 15. By setting the above-mentioned structure, a fine screen 4, a medium screen 5 and a coarse screen 6 are set. By covering different screens, the screening work of coatings of different purities is facilitated, and the screening work of coatings according to usage requirements is facilitated, which improves the performance of the coating filter bag to a certain extent.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A paint filter bag, comprising a filter cartridge (1), characterized in that: A support ring (2) is fixedly mounted on the upper port of the filter cartridge (1), a fine screen (4), a medium screen (5) and a coarse screen (6) are fixedly mounted on the lower port of the filter cartridge (1) in sequence, a bag bottom (3) is fixedly mounted on the lower port of the coarse screen (6), and a blocking cloth (7) is detachably mounted on the surfaces of the fine screen (4), the medium screen (5) and the coarse screen (6).

2. A paint filter bag according to claim 1, characterized in that: A sub-velcro (8) with a circular structure is fixedly installed between the filter cartridge (1) and the fine screen (4), the fine screen (4) and the medium screen (5), the medium screen (5) and the coarse screen (6), and the coarse screen (6) and the bag bottom (3); two main Velcros (9) are sewn on the surface of the baffle (7) by needle and thread; and the sub-velcro (8) and the main Velcro (9) are bonded to each other.

3. A paint filter bag according to claim 1, characterized in that: A baffle (15) is slidably mounted on the inner side of the filter cartridge (1).

4. A paint filter bag according to claim 3, characterized in that: An upper pull rope (13) is fixedly connected to the upper surface of the baffle (15), and an upper pull ball (14) is fixedly installed on the upper end of the upper pull rope (13).

5. A paint filter bag according to claim 3, characterized in that: A pull-down rope (10) is fixedly connected to the lower surface of the baffle (15), and a pull-down ball (11) is fixedly installed at the lower end of the pull-down rope (10) passing through the bag bottom (3).

6. A paint filter bag according to claim 1, characterized in that: The side wall of the filter cartridge (1) is fixedly connected to a limit rope (12), the other end of the limit rope (12) is fixedly connected to a limit ring (18), and the limit ring (18) is located on the side wall of the upper pull rope (13).

7. A paint filter bag according to claim 3, characterized in that: A conical rod (16) is threadedly connected to the side wall of the baffle (15), and a rotating block (17) is fixedly mounted on the end side of the conical rod (16).

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