Filter for processing waterborne polyurethane resin

Abstract

The utility model relates to the technical field of waterborne polyurethane resin processing, and discloses a filter for processing waterborne polyurethane resin, which comprises an upper shell main body and a water inlet pipe fixedly connected to one side of the upper shell main body, and the lower shell assembly comprises a lower shell main body arranged below the upper shell main body and a drainage pipe fixed at the bottom of the lower shell main body. The separating assembly comprises a movable sliding block fixed to the outer side of the upper shell body, a separating lead screw installed in the movable sliding block through a screw sleeve, and a lead screw motor fixedly installed at the bottom of the separating lead screw. According to the filter for processing the waterborne polyurethane resin, the complete tank body is decomposed into the upper shell assembly and the lower shell assembly, and the separation assembly is matched, so that a separation lead screw can be driven to rotate through a lead screw motor, the upper shell main body and the lower shell main body are separated from each other, and a filtering medium mounted in the upper shell main body is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of waterborne polyurethane resin processing technology, specifically a filter for processing waterborne polyurethane resin. Background Technology

[0002] Waterborne polyurethane resin is a polyurethane system that uses water as the dispersion medium. It possesses excellent flexibility, abrasion resistance, and chemical resistance, and is widely used in coatings, adhesives, and other fields. During the production process of waterborne polyurethane resin, the raw materials or reaction products may contain impurities such as particles, gels, cross-linking products, and fisheyes. If these impurities are not removed by filtration, they will affect the transparency, stability, and performance of the final product. Therefore, filters are used to filter the waterborne polyurethane resin.

[0003] In the field of waterborne polyurethane resin processing, existing waterborne polyurethane resin filters use multiple filter tubes, with external filter media such as filter cloth. Waterborne polyurethane resin enters the filter tubes through the filter media and is discharged outwards. The filter media needs to be replaced after a long period of use, otherwise the filtration effect will be affected due to damage or severe blockage of the filter media. However, current waterborne polyurethane resin filters are composed of a complete tank, which is inconvenient when it is necessary to disassemble the internal filter media. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Given that the existing waterborne polyurethane resin filters described above or in the prior art consist of a single tank, it is inconvenient to disassemble the internal filter media.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A filter for processing waterborne polyurethane resin, characterized in that it comprises:

[0008] The upper shell assembly includes an upper shell body and a water inlet pipe fixedly connected to one side of the upper shell body;

[0009] The lower housing assembly includes a lower housing body disposed below the upper housing body and a drain pipe fixed to the bottom of the lower housing body.

[0010] The separation assembly includes a movable slider fixed to the outside of the upper shell body, a separation screw installed inside the movable slider via a screw sleeve, and a screw motor fixedly installed at the bottom of the separation screw.

[0011] As a further embodiment of this utility model: the upper housing assembly further includes a hydraulic cylinder fixed to the top of the upper housing body, a filter medium mounting plate fixed to the telescopic end of the hydraulic cylinder, a connector threaded onto the top end face of the filter medium mounting plate, and a filter cartridge fixed to the bottom of the connector.

[0012] As a further embodiment of this utility model: the filter cartridge extends through the interior of the filter medium mounting plate, and the filter cartridge is fixedly connected to the connector. An internal plug is provided inside the end of the filter cartridge near the connector, and the internal plug is fixed inside the connector.

[0013] As a further embodiment of this utility model: the upper shell assembly further includes a connecting inner plate fixed to the inner side of the upper shell body, a sealing rubber ring elastically connected to the lower part of the connecting inner plate, and a connecting spring fixed between the sealing rubber ring and the connecting inner plate.

[0014] As a further embodiment of this utility model: the lower housing assembly further includes a bottom manifold plate fixed inside the lower housing body, an internal support tube fixed to the top of the bottom manifold plate, and a sealing support plate fixed to the inner wall of the lower housing body.

[0015] As a further improvement of this utility model: the bottom manifold plate is connected to the drain pipe, and a solenoid valve is fixedly connected to the middle of the drain pipe.

[0016] As a further improvement of this utility model: the internal support tube is a hollow structure, and multiple through holes are opened on the surface of the internal support tube. The internal support tube passes through the interior of the filter cartridge, and the internal plug is inserted into the top of the internal support tube.

[0017] As a further embodiment of this utility model, the separation assembly also includes a fixing bracket fixed to the outside of the lower shell body, and a limiting plate fixed to the top of the separation screw for limiting the position.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This utility model disassembles the complete tank into an upper shell assembly and a lower shell assembly. With the help of the separation assembly, the upper shell body and the lower shell body can be separated by a lead screw motor driving the separation lead screw to rotate, which facilitates the replacement of the filter media installed inside the upper shell body.

[0020] The sealing rubber ring, in conjunction with the connecting spring and the sealing support plate, tightly seals the lower and upper shell bodies. Since the connector is threaded to the filter media mounting plate, the height of the filter cartridge can be adjusted under the action of the hydraulic cylinder, making it easy to disassemble the filter cartridge. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a filter used for processing waterborne polyurethane resin;

[0022] Figure 2 This is a schematic diagram of the structure of a hydraulic cylinder in a filter used for processing waterborne polyurethane resin.

[0023] Figure 3 This is a schematic diagram of the structure of the lower shell body of a filter used for processing waterborne polyurethane resin.

[0024] Figure 4 This is a schematic diagram of the upper shell body of a filter used for processing waterborne polyurethane resin.

[0025] Figure 5 This is a schematic diagram of the bottom manifold in a filter used for processing waterborne polyurethane resin.

[0026] In the diagram: 1. Upper housing assembly; 101. Upper housing body; 102. Water inlet pipe; 103. Hydraulic cylinder; 104. Filter media mounting plate; 105. Filter cartridge; 106. Connector; 107. Internal plug; 108. Connecting inner plate; 109. Sealing rubber ring; 110. Connecting spring; 2. Lower housing assembly; 201. Lower housing body; 202. Drain pipe; 203. Solenoid valve; 204. Internal support pipe; 205. Sealing support plate; 206. Bottom manifold; 3. Separation assembly; 301. Limiting plate; 302. Separation screw; 303. Moving slider; 304. Fixed bracket; 305. Screw motor. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0030] Example 1

[0031] Please see Figure 1 , Figure 3 and Figure 4 This is the first embodiment of the present invention, which provides a filter for processing waterborne polyurethane resin, comprising:

[0032] The upper shell assembly 1 includes an upper shell body 101 and a water inlet pipe 102 fixedly connected to one side of the upper shell body 101;

[0033] The lower housing assembly 2 includes a lower housing body 201 disposed below the upper housing body 101 and a drain pipe 202 fixed to the bottom of the lower housing body 201.

[0034] The separation assembly 3 includes a movable slider 303 fixed to the outside of the upper shell body 101, a separation screw 302 installed inside the movable slider 303 through a screw sleeve, and a screw motor 305 fixedly installed at the bottom of the separation screw 302.

[0035] Specifically, the separation assembly 3 also includes a fixing bracket 304 fixed to the outside of the lower shell body 201, and a limiting plate 301 fixed to the top of the separation screw 302 for limiting.

[0036] Furthermore, when the lead screw motor 305 is working, it can drive the separating lead screw 302 to rotate, and the lead sleeve on the separating lead screw 302 can drive the movable slider 303 to move downward, thereby driving the upper shell body 101 to move downward through the movable slider 303, so that the upper shell body 101 and the lower shell body 201 close together, disassembling the complete tank into the upper shell assembly 1 and the lower shell assembly 2, which facilitates the replacement of the filter media inside the upper shell assembly 1 and the lower shell assembly 2.

[0037] In use, the water-based polyurethane resin enters the upper shell body 101 through the inlet pipe 102. After being filtered by the upper shell body 101, it is discharged outward through the drain pipe 202. During filtration, the screw motor 305 can drive the separating screw 302 to rotate. The threaded sleeve on the separating screw 302 can drive the moving slider 303 to move downward. Thus, the moving slider 303 drives the upper shell body 101 to move downward, so that the upper shell body 101 and the lower shell body 201 close together. When it is necessary to replace the internal filter medium, the screw motor 305 reverses, thereby driving the upper shell body 101 to move upward, and the upper shell body 101 and the lower shell body 201 separate together, so that the filter medium installed inside the upper shell body 101 can be replaced.

[0038] In summary, the filter used for processing waterborne polyurethane resin can be separated into an upper shell assembly 1 and a lower shell assembly 2 by disassembling the complete tank into an upper shell assembly 1 and a lower shell assembly 2, and in conjunction with a separation assembly 3. The separation screw 302 can be rotated by a screw motor 305, thereby separating the upper shell body 101 and the lower shell body 201 from each other, which facilitates the replacement of the filter media installed inside the upper shell body 101.

[0039] Example 2

[0040] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 This is the second embodiment of the present invention, which provides an improved design for a filter used in processing waterborne polyurethane resin.

[0041] Specifically, the upper housing assembly 1 also includes a hydraulic cylinder 103 fixed to the top of the upper housing body 101, a filter media mounting plate 104 fixed to the telescopic end of the hydraulic cylinder 103, a connector 106 threaded onto the top end face of the filter media mounting plate 104, and a filter cartridge 105 fixed to the bottom of the connector 106.

[0042] Furthermore, the filter cartridge 105 is a cylindrical structure made of filter cloth or other filter media, fixed to the bottom of the connector 106. The connection between the filter media mounting plate 104 and the connector 106 is provided with a matching threaded hole. When in use, the filter cartridge 105 is inserted into the threaded hole, and the connector 106 is threadedly connected to the filter media mounting plate 104, so that the entire connector 106 and filter cartridge 105 can be replaced.

[0043] Specifically, the filter cartridge 105 extends through the interior of the filter media mounting plate 104, and the filter cartridge 105 is fixedly connected to the connector 106. An internal plug 107 is provided inside the end of the filter cartridge 105 near the connector 106, and the internal plug 107 is fixed inside the connector 106.

[0044] Furthermore, the internal plug 107 is located inside the filter cartridge 105, and the internal plug 107 is made of silicone or rubber.

[0045] Specifically, the upper housing assembly 1 also includes a connecting inner plate 108 fixed to the inner side of the upper housing body 101, a sealing rubber ring 109 elastically connected to the lower part of the connecting inner plate 108, and a connecting spring 110 fixed between the sealing rubber ring 109 and the connecting inner plate 108.

[0046] Furthermore, when the upper shell body 101 moves downward, it can simultaneously drive the connecting inner plate 108 and the sealing rubber ring 109 to move downward until the upper shell body 101 approaches the lower shell body 201. The connecting spring 110 can then be squeezed inward, using its own elastic deformation ability to push the sealing rubber ring 109 to press and seal.

[0047] Specifically, the lower housing assembly 2 also includes a bottom manifold 206 fixed inside the lower housing body 201, an internal support tube 204 fixed to the top of the bottom manifold 206, and a sealing support plate 205 fixed to the inner wall of the lower housing body 201.

[0048] Furthermore, when the lower shell body 201 and the upper shell body 101 are closed together, the sealing rubber ring 109 is located at the connection between the lower shell body 201 and the upper shell body 101. The sealing rubber ring 109 and the sealing support plate 205 are tightly attached to each other, which plays a certain sealing role, while the internal support tube 204 can be inserted into the interior of the filter cartridge 105.

[0049] Specifically, the bottom manifold 206 is connected to the drain pipe 202, and a solenoid valve 203 is fixedly connected to the middle of the drain pipe 202.

[0050] Furthermore, the filtered waterborne polyurethane resin enters the bottom manifold 206 and can be discharged through the drain pipe 202.

[0051] Specifically, the internal support tube 204 has a hollow structure and multiple through holes are provided on its surface. The internal support tube 204 penetrates the interior of the filter cartridge 105, and the internal plug 107 is inserted into the top of the internal support tube 204.

[0052] Furthermore, after being filtered by the filter cartridge 105, the waterborne polyurethane resin can enter the internal support tube 204 through the through hole and then enter the bottom manifold 206, thereby achieving filtration.

[0053] In use, the upper shell body 101 moves downward, simultaneously causing the connecting inner plate 108 and the sealing rubber ring 109 to move downward. The sealing rubber ring 109 and the sealing support plate 205 are tightly pressed together until the upper shell body 101 approaches the lower shell body 201. At this point, the connecting spring 110 can press inward, and the sealing rubber ring 109 is positioned at the connection between the lower shell body 201 and the upper shell body 101, sealing the lower shell body 201 and the upper shell body 101. At this time, the hydraulic cylinder 103 pushes the filter medium mounting plate 104 downward, and the filter cartridge 105 is sequentially fitted onto the outside of the inner support tube 204. After the water-based polyurethane resin is filtered through the filter cartridge 105, it can... The filter cartridge 105 enters through the through hole of the internal support tube 204 and then enters the bottom manifold 206, and is discharged through the drain pipe 202. When the filter cartridge 105 needs to be disassembled, the lower shell body 201 and the upper shell body 101 are separated from each other. At this time, the internal support tube 204 and the filter cartridge 105 are separated from each other. After the filter cartridge 105 reaches above the internal support tube 204, the hydraulic cylinder 103 is started again. The hydraulic cylinder 103 drives the filter medium mounting plate 104 to move downward. The filter medium mounting plate 104 moves away from the upper shell body 101, and the filter cartridge 105 is moved to a suitable height. The connector 106 is rotated to disassemble the connector 106.

[0054] In summary, by using the sealing rubber ring 109 in conjunction with the connecting spring 110 and the sealing support plate 205 to tightly adhere to each other, the sealing of the lower shell body 201 and the upper shell body 101 is achieved. Since the connector 106 is threadedly connected to the filter medium mounting plate 104, the height of the filter cartridge 105 can be adjusted under the action of the hydraulic cylinder 103, making it convenient to disassemble the filter cartridge 105.

[0055] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0056] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0057] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A filter for processing waterborne polyurethane resin, characterized in that: include: The upper shell assembly (1) includes an upper shell body (101) and a water inlet pipe (102) fixedly connected to one side of the upper shell body (101). The lower housing assembly (2) includes a lower housing body (201) disposed below the upper housing body (101) and a drain pipe (202) fixed to the bottom of the lower housing body (201). The separation assembly (3) includes a movable slider (303) fixed to the outside of the upper shell body (101), a separation screw (302) installed inside the movable slider (303) through a screw sleeve, and a screw motor (305) fixedly installed at the bottom of the separation screw (302).

2. A filter for processing waterborne polyurethane resin according to claim 1, characterized in that: The upper housing assembly (1) further includes a hydraulic cylinder (103) fixed to the top of the upper housing body (101), a filter media mounting plate (104) fixed to the telescopic end of the hydraulic cylinder (103), a connector (106) threaded onto the top end face of the filter media mounting plate (104), and a filter cartridge (105) fixed to the bottom of the connector (106).

3. A filter for processing waterborne polyurethane resin according to claim 2, characterized in that: The filter cartridge (105) extends through the interior of the filter medium mounting plate (104) and is fixedly connected to the connector (106). An internal plug (107) is provided inside the end of the filter cartridge (105) near the connector (106) and the internal plug (107) is fixed inside the connector (106).

4. A filter for processing waterborne polyurethane resin according to claim 3, characterized in that: The upper housing assembly (1) further includes a connecting inner plate (108) fixed to the inner side of the upper housing body (101), a sealing rubber ring (109) elastically connected to the lower part of the connecting inner plate (108), and a connecting spring (110) fixed between the sealing rubber ring (109) and the connecting inner plate (108).

5. A filter for processing waterborne polyurethane resin according to claim 4, characterized in that: The lower housing assembly (2) further includes a bottom manifold (206) fixed inside the lower housing body (201), an internal support tube (204) fixed to the top of the bottom manifold (206), and a sealing support plate (205) fixed to the inner wall of the lower housing body (201).

6. A filter for processing waterborne polyurethane resin according to claim 5, characterized in that: The bottom manifold (206) is connected to the drain pipe (202), and a solenoid valve (203) is fixedly connected to the middle of the drain pipe (202).

7. A filter for processing waterborne polyurethane resin according to claim 6, characterized in that: The internal support tube (204) is a hollow structure, and multiple through holes are provided on the surface of the internal support tube (204). The internal support tube (204) penetrates the interior of the filter cartridge (105), and the internal plug (107) is inserted into the top of the internal support tube (204).

8. A filter for processing waterborne polyurethane resin according to claim 7, characterized in that: The separation assembly (3) also includes a fixing bracket (304) fixed to the outside of the lower shell body (201) and a limiting plate (301) fixed to the top of the separation screw (302) for limiting.

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