Filter cartridge for UV gloss oil production

Abstract

The utility model discloses a filter cartridge for UV (ultraviolet) gloss oil production, and belongs to the technical field of UV gloss oil production equipment. Comprising a shell, a first pipeline is rotationally connected to the center of the top face of the shell, an inner filter cartridge and an outer filter cartridge are installed on the outer side of the first pipeline, the inner filter cartridge is suspended in the outer filter cartridge, the inner filter cartridge and the outer filter cartridge are both located in the shell, and a pair of first scraping plates is further rotationally connected to the outer side of the first pipeline; the pair of first scrapers are located in the inner filter cartridge and make contact with the side face of the inner filter cartridge, the inner wall of the shell is provided with a pair of second scrapers, the second scrapers make contact with the side face of the outer filter cartridge, the part, located in the inner filter cartridge, of the first pipeline is provided with a plurality of through holes, and the top face of the shell is provided with a driving piece; the driving part drives the first pipeline to rotate, the top end of the first pipeline communicates with an input part, and the input part is used for inputting UV gloss oil and a cleaning agent.

Description

Technical Field

[0001] This utility model relates to the technical field of UV varnish production equipment, specifically a filter cartridge for UV varnish production. Background Technology

[0002] UV varnish, a transparent coating widely used in packaging printing, decorative materials, and other fields, directly affects the appearance and performance of the final product. During the production process of UV varnish, impurities may be present in the raw materials, and factors such as equipment wear and incomplete chemical reactions can lead to the introduction of various visible impurities and particulate matter into the varnish. If these impurities are not effectively filtered out, the surface of the object coated with the varnish will not only affect its appearance but may also exhibit a grainy texture, reduce its tactile feel, and even severely impact product quality and performance in applications with extremely high surface quality requirements, such as coating high-end electronic product casings and protecting precision optical components.

[0003] Existing UV varnish filtration devices suffer from numerous problems in practical use. On the one hand, traditional filtration structures are often quite simple, and their filtration precision is insufficient to meet increasingly stringent product quality requirements, failing to effectively remove fine particulate impurities. On the other hand, after a period of use, impurities and particulate matter accumulate on the filter screen, causing blockage and a significant decrease in filtration efficiency. Therefore, developing a high-precision, easy-to-clean and maintain filter cartridge for UV varnish production is of significant practical importance. Utility Model Content

[0004] The purpose of this invention is to provide a filter cartridge for UV varnish production to solve the problems mentioned in the background art.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A filter cartridge for UV varnish production includes a housing. A first pipe is rotatably connected to the center of the top surface of the housing. An inner filter cartridge and an outer filter cartridge are installed on the outside of the first pipe. The inner filter cartridge is suspended inside the outer filter cartridge, and both the inner and outer filter cartridges are located inside the housing. A pair of first scrapers are rotatably connected to the outside of the first pipe. The pair of first scrapers are located inside the inner filter cartridge and in contact with the side of the inner filter cartridge. A pair of second scrapers are installed on the inner wall of the housing, and the second scrapers are in contact with the side of the outer filter cartridge. The portion of the first pipe inside the inner filter cartridge has several through holes. A driving component is installed on the top surface of the housing, which drives the first pipe to rotate. An input component is connected to the top of the first pipe for inputting UV varnish and cleaning agent. Through the double-layer filtration structure of the inner and outer filter cartridges, multi-stage filtration of UV varnish can be achieved, improving impurity removal efficiency. The first and second scrapers, in conjunction with the cleaning agent, can effectively scrape off impurities from the filter screen surface, preventing filter screen clogging and maintaining filtration efficiency.

[0007] Furthermore, the driving component includes a motor mounted on the top surface of the housing, and gears are mounted on both the output end of the motor and the outer side of the first pipe, with the gears meshing with each other.

[0008] Furthermore, the input component includes a second pipe, a rotary joint connecting the second pipe and the first pipe, a third pipe connected to the outside of the second pipe, and the free ends of both the second and third pipes connected to the output end of the pumps via check valves. The input ends of a pair of pumps are respectively connected to a pair of water tanks, which store UV varnish and cleaning agent respectively. The rotary joint achieves a sealed connection between the fixed pipe and the rotating first pipe, ensuring that the cleaning agent and varnish are input independently. The dual-pipe design supports quick switching between "filtration-cleaning" modes, and the cleaning agent can be directly injected through the input component without interrupting the equipment operation.

[0009] Furthermore, the surfaces of the inner and outer filter cartridges are meshed, with the mesh aperture of the inner filter cartridge being larger than that of the outer filter cartridge. The inner filter cartridge filters out large particles of impurities first, reducing the load on the outer filter cartridge and extending its service life. The fine mesh of the outer filter cartridge ensures that the varnish meets high precision requirements. The design of the double-layer filter cartridge with decreasing pore size, combined with the penetrating ability of the cleaning agent, allows large particles of impurities to be intercepted by the inner filter cartridge first, reducing clogging of the outer filter cartridge. During cleaning, the cleaning agent can penetrate the mesh of the inner filter cartridge and flush both layers of filter cartridges, improving cleaning efficiency.

[0010] Furthermore, a conical cavity is provided at the bottom of the outer shell, and the top radius of the conical cavity is larger than its bottom radius. The bottom surface of the conical cavity is connected to a water outlet pipe. The conical cavity allows the filtered varnish to quickly converge to the water outlet pipe, reducing residue inside the outer shell, improving varnish collection efficiency, and accelerating the settling of impurities to the bottom.

[0011] Furthermore, a pair of filters are installed on the top surface of the conical cavity, and activated carbon is filled between the pair of filters. The activated carbon adsorbs pigments, odor substances and residual solvents in the varnish, thereby improving the optical transparency and environmental performance of the varnish.

[0012] Furthermore, the free end of the water outlet pipe is connected to a reversing valve, which changes the direction of liquid flow according to the type of liquid discharged, so that UV varnish and cleaning waste liquid can be discharged separately.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The filter cartridge for UV varnish production has a larger mesh size in the inner filter cartridge, which can quickly intercept visible impurities such as raw material clumps and metal fragments in the UV varnish, preventing them from clogging the subsequent fine filter layer and improving the initial filtration efficiency. The outer filter cartridge uses a small-diameter filter screen, which can effectively remove impurities such as colloids and pigment particles that are not visible to the naked eye, meeting the stringent purity requirements of high-end varnishes. During cleaning, the cleaning agent is injected into the outer shell through the input component, and with the mechanical scraping action of the scraper, it can soften and dissolve the sticky impurities on the filter screen, realizing the mechanical scraping and chemical dissolution of impurities on the filter screen surface, ultimately improving the filtration effect and reducing the cleaning difficulty. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the filter cartridge for UV varnish production disclosed in an embodiment of the present utility model;

[0015] Figure 2 This is a side view of the filter cartridge for UV varnish production disclosed in an embodiment of the present invention.

[0016] Figure 3 This is a cross-sectional structural diagram of the filter cartridge for UV varnish production disclosed in an embodiment of this utility model;

[0017] Figure 4 for Figure 3 A magnified schematic diagram of structure A in the middle.

[0018] In the diagram: 1. Outer shell; 2. First pipe; 3. Motor; 4. Gear; 5. Rotary joint; 6. Second pipe; 7. Third pipe; 8. Outlet pipe; 9. Reversing valve; 10. Inner filter cylinder; 11. Outer filter cylinder; 12. First scraper; 13. Second scraper; 14. Conical cavity; 15. Filter screen; 16. Through hole. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a filter cartridge for UV varnish production, comprising a shell 1, a first pipe 2 rotatably connected to the center of the top surface of the shell 1, an inner filter cartridge 10 and an outer filter cartridge 11 installed on the outside of the first pipe 2, the inner filter cartridge 10 being suspended inside the outer filter cartridge 11, and both the inner filter cartridge 10 and the outer filter cartridge 11 being inside the shell 1; a pair of first scrapers 12 are also rotatably connected to the outside of the first pipe 2, the pair of first scrapers 12 being located inside the inner filter cartridge 10 and adjacent to the side of the inner filter cartridge 10. The inner wall of the outer casing 1 is fitted with a pair of second scrapers 13, which contact the side of the outer filter cylinder 11. The first pipe 2 has several through holes 16 in the portion located inside the inner filter cylinder 10. A driving component is mounted on the top surface of the outer casing 1, which drives the first pipe 2 to rotate. An input component is connected to the top of the first pipe 2, which is used to input UV varnish and cleaning agent. The UV varnish enters the inner filter cylinder 10 through the through holes 16 of the first pipe 2 via the input component. The large-aperture filter screen of the inner filter cylinder 10 first intercepts raw material clumps and gold... Large particles such as debris are initially filtered; the varnish after preliminary filtration enters the outer filter cartridge 11, where its small-pore filter screen further filters out tiny impurities such as colloids and pigment particles. Simultaneously, the drive unit rotates the first pipe 2, causing the inner filter cartridge 10 and outer filter cartridge 11 to rotate synchronously. Centrifugal force accelerates the separation of impurities from the varnish, and the impurities adhere to the filter screen surface. Cleaning agent is injected into the outer casing 1 through the input component, filling it completely. The drive unit then rotates the first pipe 2, causing the inner filter cartridge 10, outer filter cartridge 11, and first scraper 12 to rotate. Due to the first… The contact area between the scraper 12 and the cleaning agent is relatively large, resulting in greater resistance between them. Therefore, its rotational speed is lower than that of the inner filter cylinder 10, creating a speed difference. This causes the first scraper 12 to slide relative to the inner side of the inner filter cylinder 10. Combined with the flushing and dissolving effect of the cleaning agent, it scrapes away impurities on the inner side of the filter screen. The second scraper 13 is fixed to the inner wall of the outer shell 1. When the outer filter cylinder 11 rotates, its outer side rubs against the second scraper 13. Combined with the penetration of the cleaning agent, it peels off and dissolves impurities on the outer side of the filter screen. The impurities settle to the bottom of the outer shell 1 with the cleaning agent and are discharged through the water outlet pipe 8.

[0021] As an embodiment of this utility model, the driving component further includes a motor 3 installed on the top surface of the housing 1. Gears 4 are installed on both the output end of the motor 3 and the outer side of the first pipe 2. The gears 4 mesh with each other. The motor 3 drives the first pipe 2 to rotate through the meshing of the gears 4. The stability of the gear transmission ensures that the rotation speed of the filter cylinder and the scraper are matched, so that the cleaning agent forms a stable turbulence in the housing, enhances the shearing force between the scraper and the filter screen, and improves the impurity removal effect.

[0022] As an embodiment of this utility model, the input component further includes a second pipe 6, a rotary joint 5 connecting the second pipe 6 and the first pipe 2, a third pipe 7 connecting the outer side of the second pipe 6, and the free ends of the second pipe 6 and the third pipe 7 being connected to the output end of the pump through a one-way valve. The input ends of a pair of pumps are respectively connected to a pair of water tanks, which store UV varnish and cleaning agent respectively. During filtration, the pump inputs UV varnish into the first pipe 2, and the varnish is evenly distributed to the inner filter cylinder 10 through the through hole 16, and coarse filtration and fine filtration are quickly completed under the action of centrifugal force. During cleaning, another pump inputs cleaning agent into the first pipe 2, and the cleaning agent, together with the first scraper 12 and the second scraper 13, completes the cleaning of the inner filter cylinder 10 and the outer filter cylinder 11.

[0023] As an embodiment of this utility model, the surfaces of the inner filter cylinder 10 and the outer filter cylinder 11 are further provided with mesh, and the mesh aperture of the inner filter cylinder 10 is larger than that of the outer filter cylinder 11. When the varnish flows through the inner filter cylinder 10, impurities with a particle size >50μm are intercepted, and the varnish with a particle size <50μm enters the outer filter cylinder 11. The filter mesh aperture of the outer filter cylinder 11 is 5-10μm, which can effectively remove tiny particles that are invisible to the naked eye, and realize the gradual purification of the varnish from "coarse filtration" to "fine filtration".

[0024] As an embodiment of this utility model, a conical cavity 14 is further provided at the inner bottom of the outer shell 1, and the top radius of the conical cavity 14 is larger than its bottom radius. The bottom surface of the conical cavity 14 is connected to a water outlet pipe 8. During the filtration or cleaning process, the varnish or waste liquid flows to the bottom of the outer shell 1, and the inclined surface of the conical cavity 14 guides the varnish or waste liquid to gather towards the center, and then discharges it through the water outlet pipe 8.

[0025] As an embodiment of this utility model, a pair of filter screens 15 are further installed on the top surface of the conical cavity 14, and activated carbon is filled between the pair of filter screens 15. When the varnish filtered by the double-layer filter screens flows through the conical cavity 14, the activated carbon adsorbs organic impurities through its porous structure.

[0026] As an embodiment of this utility model, the free end of the water outlet pipe 8 is further connected to a reversing valve 9, which changes the direction of liquid flow according to the type of liquid discharged, so that the UV varnish and the waste liquid after cleaning can be discharged separately.

[0027] As an embodiment of this utility model, the top of the outer shell 1 is further fixedly connected to the shell cover, and the motor 3 and other components are installed on the shell cover. The user can remove the shell cover to clean the inner filter cylinder 10 and the outer filter cylinder 11.

[0028] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a control cabinet. The control circuit can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

Claims

1. A filter cartridge for UV varnish production, characterized in that, The system includes an outer casing (1), to which a first pipe (2) is rotatably connected at the center of its top surface. An inner filter cylinder (10) and an outer filter cylinder (11) are installed on the outside of the first pipe (2). The inner filter cylinder (10) is suspended inside the outer filter cylinder (11), and both the inner filter cylinder (10) and the outer filter cylinder (11) are located inside the outer casing (1). A pair of first scrapers (12) are also rotatably connected to the outside of the first pipe (2), and the pair of first scrapers (12) are located on the inner filter cylinder (10). Inside, and in contact with the side of the inner filter cylinder (10), the inner wall of the outer shell (1) is equipped with a pair of second scrapers (13), the second scrapers (13) are in contact with the side of the outer filter cylinder (11), the first pipe (2) has several through holes (16) in the part located inside the inner filter cylinder (10), the top surface of the outer shell (1) is equipped with a driving member, the driving member drives the first pipe (2) to rotate, the top end of the first pipe (2) is connected to an input member, the input member is used to input UV varnish and cleaning agent.

2. The filter cartridge for UV varnish production according to claim 1, characterized in that, The driving component includes a motor (3) mounted on the top surface of the housing (1), and gears (4) are mounted on the output end of the motor (3) and the outside of the first pipe (2), and the gears (4) mesh with each other.

3. A filter cartridge for UV varnish production according to claim 1, characterized in that, The input component includes a second pipe (6), a rotary joint (5) is connected between the second pipe (6) and the first pipe (2), a third pipe (7) is connected to the outside of the second pipe (6), the free ends of the second pipe (6) and the third pipe (7) are connected to the output end of the pump through a one-way valve, and the input ends of a pair of pumps are connected to a pair of water tanks respectively, and the pair of water tanks store UV varnish and cleaning agent respectively.

4. A filter cartridge for UV varnish production according to claim 1, characterized in that, The surfaces of the inner filter cylinder (10) and the outer filter cylinder (11) are meshed, and the mesh aperture of the inner filter cylinder (10) is larger than that of the outer filter cylinder (11).

5. A filter cartridge for UV varnish production according to claim 1, characterized in that, The inner bottom of the outer shell (1) is provided with a conical cavity (14), and the top radius of the conical cavity (14) is greater than its bottom radius. The bottom surface of the conical cavity (14) is connected to a water outlet pipe (8).

6. A filter cartridge for UV varnish production according to claim 5, characterized in that, A pair of filter screens (15) are installed on the top surface of the conical cavity (14), and activated carbon is filled between the pair of filter screens (15).

7. A filter cartridge for UV varnish production according to claim 5, characterized in that, The free end of the outlet pipe (8) is connected to a reversing valve (9).

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