Filtering device for transparent 3D printing resin production

Abstract

The utility model provides a filtering device for transparent 3D printing resin production, and belongs to the field of 3D printing resin production, the filtering device comprises a filtering barrel and a mounting rack, the top of the filtering barrel is provided with a filtering assembly, the bottom of the filtering barrel is connected with an auxiliary assembly through a conveying pipe, and two sides of the inner wall of the mounting rack are provided with two groups of sliding chutes; the auxiliary assemblies are arranged in the two sets of sliding grooves. According to the utility model, filtered resin is fed into the first filter element barrel from the first connecting pipe by the first transfer pump, is discharged from the first discharge pipe after being filtered and purified by the internal replacement filter element, and then is fed into the second filter element barrel from the second connecting pipe by the second transfer pump; after being filtered and purified by the internal replaceable filter element, the water is discharged from the second discharge pipe and fed into the storage tank, and the inner diameters of the filter holes of the two replaceable filter elements are different, so that the filtering effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of 3D printing resin production, in particular to a filtering device for producing transparent 3D printing resin. Background Art

[0002] 3D printing commonly used photosensitive resin, which is composed of polymer monomers and prepolymers, wherein a light (ultraviolet) initiator or photosensitizer is added, which immediately causes a polymerization reaction under the irradiation of ultraviolet light of a certain wavelength to complete the curing. Photosensitive resin is generally liquid and is used to make high-strength, high-temperature resistant, waterproof and other materials. A filtering device for 3D printing resin disclosed in the application number CN202321691948.7 is recorded to include a stirring part, a filtering part and a resin collection box; the top of the resin collection box is open; a filtering part is provided above the resin collection box, the filtering part is used to filter the resin and flow it into the resin collection box; the stirring part is used to stir Resin in the filter section; a liquid outlet for resin outflow is provided at the bottom of the resin collection box. By setting a stirring section, the fluidity of the photosensitive resin is enhanced by stirring during the filtration process, thereby improving the filtration efficiency and effectively improving the problems of low filtration efficiency, inconvenient filter screen replacement and poor cleaning of the existing resin filtration device. However, the above description still has the following defects in actual use: the filtration effect of the filtration device on the printed resin is poor during use, and the use of a single filter screen cannot remove impurities contained in the resin, and it is not convenient to install and replace the structure. Therefore, it is necessary to design a practical transparent 3D printing resin production filtration device. Utility Model Content

[0003] The purpose of the present utility model is to provide a filtering device for producing transparent 3D printing resin to solve the problems raised by the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions: a filtering device for transparent 3D printing resin production, comprising a filter barrel and a mounting frame, wherein a filter assembly is provided on the top of the filter barrel, and the bottom of the filter barrel is connected to an auxiliary assembly via a delivery pipe, and two sets of chutes are provided on both sides of the inner wall of the mounting frame, and the auxiliary assembly is disposed in the two sets of chutes;

[0005] The filter assembly includes a mounting ring mounted on the top of the filter barrel, one side of the bottom of the mounting ring is fixedly connected to the inner shell, the edges of the inner shell and the inner wall of the mounting ring are provided with a conical filter screen, the inner wall of the conical filter screen is replaceably connected to a filter membrane paper, a circular filter screen is provided below the inner wall of the inner shell, and the side of the inner shell is slidably engaged with the inner wall of the filter barrel;

[0006] The auxiliary component includes a first feed pump installed and connected to the delivery pipe, the discharge port of the first feed pump is installed and connected to the first filter cartridge barrel through a first connecting pipe, the bottom of the first filter cartridge barrel is fixedly connected to the second feed pump through the first discharge pipe, the discharge port of the second feed pump is installed and connected to the second filter cartridge barrel through a second connecting pipe, the bottom of the second filter cartridge barrel is installed and connected to the storage tank through the second discharge pipe, and the edges of the tops of the first filter cartridge barrel and the second filter cartridge barrel are both engaged and connected with two replacement filter cartridges through adjustment components.

[0007] As a preferred solution of the present invention: the adjustment assembly includes two clamps that are engaged with two replacement filter elements, the tops of the two clamps are fixedly connected to the bottoms of the two covers, the sides of the two covers are fixedly connected to one end of the two groups of sliders through two connecting blocks, the sides of the two groups of sliders are slidably connected to the inner walls of the two groups of slide grooves, the bottoms of the two groups of sliders are fixedly connected to the telescopic ends of the two groups of electric telescopic rods, and the bottoms of the two groups of electric telescopic rods are fixedly connected to the bottoms of the inner walls of the two groups of slide grooves.

[0008] As a preferred solution of the present invention: two clamping holes are provided on both sides of the top of the filter barrel, and the inner walls of the two clamping holes are clamped and connected with the clamping joints provided on both sides of the bottom of the mounting ring.

[0009] As a preferred solution of the present invention: the surface of the filter barrel is fixedly connected to a plurality of support rods via a support plate.

[0010] As a preferred solution of the present invention, the inner diameter of the filter hole of the previous replacement filter element is larger than the filter hole of the next replacement filter element.

[0011] As a preferred solution of the present invention, the edges of the bottom of the two covers are respectively connected to the edges of the top of the first filter cartridge barrel and the second filter cartridge barrel through sealing rings.

[0012] As a preferred solution of the present invention: a control panel is provided on the surface of the mounting frame, and the electric telescopic rod is electrically connected to an external power supply via the control panel.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) The resin is poured into the conical filter screen, filtered by the filter membrane paper and then enters the bottom of the inner shell, and then filtered again by the circular filter screen and enters the delivery pipe, thereby completing the impurity filtration of the resin. The filter membrane paper can be replaced regularly. The mounting ring cooperates with the two card joints at the bottom and the two card holes at the top of the filter barrel to facilitate the installation and disassembly of its filtering structure.

[0015] (2) The filtered resin is sent from the first connecting pipe into the first filter cartridge barrel through the first pumping pump, and is discharged from the first discharge pipe after filtering and purification by the internal replacement filter cartridge. Then, it is sent from the second connecting pipe into the second filter cartridge barrel through the second pumping pump, and is discharged from the second discharge pipe into the storage tank after filtering and purification by the internal replacement filter cartridge. Since the inner diameters of the filter holes of the two replacement filter cartridges are different, it is convenient to improve the filtering effect. The two sets of electric telescopic rods drive the two sets of sliders to move on the inner walls of the two sets of slide grooves in the mounting frame. The two sets of sliders cooperate with the two sets of connecting blocks to drive the two covers to move. The two covers cooperate with the two clamps to drive the two replacement filter cartridges to move, thereby facilitating the installation and disassembly of the two replacement filter cartridges and improving the portability of the device structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is one of the structural diagrams of the present utility model;

[0018] Figure 3 This is a schematic diagram of the filter assembly structure of the present utility model;

[0019] Figure 4 This is a schematic diagram of the auxiliary component structure of the present utility model.

[0020] In the figure: 1. Filter barrel; 11. Mounting frame; 12. Delivery pipe; 13. Slide; 14. Snap-in hole; 15. Support plate; 16. Support rod; 17. Control panel; 2. Filter assembly; 21. Mounting ring; 22. Inner shell; 23. Conical filter screen; 24. Filter membrane paper; 25. Circular filter screen; 26. Snap-in joint; 3. Auxiliary assembly; 31. First extraction pump; 32. First connecting pipe; 33. First filter element barrel; 34. First discharge pipe; 35. Second extraction pump; 36. Second connecting pipe; 37. Second filter element barrel; 38. Second discharge pipe; 39. Storage tank; 310. Replacement filter element; 311. Clamp; 312. Sealing cover; 313. Connecting block; 314. Slider; 315. Electric telescopic rod. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 4 A filtering device for producing transparent 3D printing resin includes a filter barrel 1 and a mounting frame 11. The top of the filter barrel 1 is provided with a filter assembly 2. The bottom of the filter barrel 1 is connected to the auxiliary assembly 3 via a delivery pipe 12. Two sets of chutes 13 are opened on both sides of the inner wall of the mounting frame 11. The auxiliary assembly 3 is arranged in the two sets of chutes 13.

[0023] See also Figure 3 The filter assembly 2 includes a mounting ring 21 installed on the top of the filter barrel 1, and an inner shell 22 is fixedly connected to one side of the bottom of the mounting ring 21. A conical filter screen 23 is provided on the edge of the inner wall of the inner shell 22 and the mounting ring 21. The inner wall of the conical filter screen 23 is replaceably connected with a filter membrane paper 24. A circular filter screen 25 is provided below the inner wall of the inner shell 22, and the side of the inner shell 22 is slidably engaged with the inner wall of the filter barrel 1.

[0024] During specific use: the resin is poured into the conical filter 23, filtered by the filter membrane paper 24 and enters the bottom of the inner shell 22, and then filtered again through the circular filter 25 and enters the delivery pipe 12, thereby completing the impurity filtration of the resin. The filter membrane paper 24 can be replaced regularly, and the mounting ring 21 cooperates with the two card joints 26 at the bottom to engage with the two card holes 14 on the top of the filter barrel 1, thereby facilitating the installation and disassembly of its filtering structure.

[0025] See also Figure 4 The auxiliary component 3 includes a first pumping pump 31 installed and connected to the delivery pipe 12, the discharge port of the first pumping pump 31 is installed and connected to the first filter cartridge barrel 33 through a first connecting pipe 32, the bottom of the first filter cartridge barrel 33 is fixedly connected to the second pumping pump 35 through a first discharge pipe 34, the discharge port of the second pumping pump 35 is installed and connected to the second filter cartridge barrel 37 through a second connecting pipe 36, the bottom of the second filter cartridge barrel 37 is installed and connected to the storage tank 39 through a second discharge pipe 38, and the edges of the tops of the first filter cartridge barrel 33 and the second filter cartridge barrel 37 are both engaged and connected with the two replacement filter cartridges 310 through adjustment components.

[0026] The adjustment assembly includes two clamps 311 that are engaged with the two replacement filter elements 310, the tops of the two clamps 311 are fixedly connected to the bottoms of the two covers 312, the sides of the two covers 312 are fixedly connected to one end of the two groups of sliders 314 through two connecting blocks 313, the sides of the two groups of sliders 314 are slidably connected to the inner walls of the two groups of slide grooves 13, the bottoms of the two groups of sliders 314 are fixedly connected to the telescopic ends of the two groups of electric telescopic rods 315, and the bottoms of the two groups of electric telescopic rods 315 are fixedly connected to the bottoms of the inner walls of the two groups of slide grooves 13.

[0027] During specific use: the first suction pump 31 sends the filtered resin from the first connecting pipe 32 into the first filter cartridge barrel 33, and after filtering and purification by the internal replacement filter cartridge 310, it is discharged from the first discharge pipe 34, and then through the second suction pump 35, it is sent from the second connecting pipe 36 into the second filter cartridge barrel 37, and after filtering and purification by the internal replacement filter cartridge 310, it is discharged from the second discharge pipe 38 and sent to the storage tank 39. Since the inner diameters of the filter pores of the two replacement filter cartridges 310 are different, it is convenient to improve the filtering effect. The two sets of electric telescopic rods 315 drive the two sets of sliders 314 to move on the inner walls of the two sets of slide grooves 13 in the mounting frame 11. The two sets of sliders 314 cooperate with the two sets of connecting blocks 313 to drive the two sealing covers 312 to move. The two covers 312 cooperate with the two clamps 311 to drive the two replacement filter cartridges 310 to move, which facilitates the installation and disassembly of the two replacement filter cartridges 310 and improves the portability of the device structure.

[0028] See also Figure 3 Two card holes 14 are provided on both sides of the top of the filter barrel 1 , and the inner walls of the two card holes 14 are engaged with the card joints 26 provided on both sides of the bottom of the mounting ring 21 .

[0029] During specific use, the two clamping joints 26 at the bottom of the mounting ring 21 are engaged with the inner walls of the two clamping holes 14 , thereby facilitating the installation and removal of the mounting ring 21 from the filter barrel 1 .

[0030] See also Figure 1 The surface of the filter barrel 1 is fixedly connected to a plurality of support rods 16 through a support plate 15.

[0031] During specific use: the support plate 15 cooperates with a plurality of support rods 16 to facilitate supporting the filter barrel 1.

[0032] See also Figure 4 The inner diameter of the filter pore of the previous replacement filter element 310 is larger than the filter pore of the next replacement filter element 310.

[0033] During specific use, the inner diameter of the filter pores of the first replacement filter element 310 is larger than the filter pores of the second replacement filter element 310 , thereby facilitating improved resin filtration and purification effects.

[0034] See also Figure 4 The edges of the bottom of the two covers 312 are respectively engaged with the edges of the top of the first filter cartridge barrel 33 and the second filter cartridge barrel 37 through sealing rings.

[0035] During specific use: the sealing rings between the bottom edges of the two covers 312 and the first filter cartridge barrel 33 and the second filter cartridge barrel 37 can prevent internal resin from overflowing, thereby improving the practicality of the device.

[0036] See also Figure 1A control panel 17 is provided on the surface of the mounting frame 11 , and the electric telescopic rod 315 is electrically connected to the external power supply through the control panel 17 .

[0037] During specific use, the control panel 17 is used to control the electric telescopic rod 315, thereby facilitating the device to filter the resin and improving its filtering effect.

[0038] When in use, the resin is poured into the conical filter 23, filtered by the filter membrane paper 24 and then enters the bottom of the inner shell 22, and then filtered again by the circular filter 25 and enters the delivery pipe 12, thereby completing the impurity filtration of the resin. The filter membrane paper 24 can be replaced regularly, and the mounting ring 21 cooperates with the two card joints 26 at the bottom to engage with the two card holes 14 at the top of the filter barrel 1, so as to facilitate the installation and disassembly of its filtering structure; the first pumping pump 31 sends the filtered resin from the first connecting pipe 32 into the first filter cartridge barrel 33, and after being filtered and purified by the internal replacement filter cartridge 310, it is discharged from the first discharge pipe 34, and then passes through the second pumping pump 32. The pump 35 sends it from the second connecting pipe 36 into the second filter cartridge barrel 37, and after filtering and purification by the internal replacement filter cartridge 310, it is discharged from the second discharge pipe 38 into the storage tank 39. Since the inner diameters of the filter pores of the two replacement filter cartridges 310 are different, it is convenient to improve the filtering effect. The two sets of electric telescopic rods 315 drive the two sets of sliders 314 to move on the inner walls of the two sets of slide grooves 13 in the mounting frame 11. The two sets of sliders 314 cooperate with the two sets of connecting blocks 313 to drive the two sealing covers 312 to move. The two sealing covers 312 cooperate with the two clamps 311 to drive the two replacement filter cartridges 310 to move, which is convenient for installing and disassembling the two replacement filter cartridges 310.

[0039] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A filtering device for transparent 3D printing resin production, characterized in that: The invention comprises a filter barrel (1) and a mounting frame (11), wherein a filter assembly (2) is provided on the top of the filter barrel (1), and the bottom of the filter barrel (1) is connected to an auxiliary assembly (3) via a delivery pipe (12), and two groups of chute (13) are provided on both sides of the inner wall of the mounting frame (11), and the auxiliary assembly (3) is arranged in the two groups of chute (13); The filter assembly (2) comprises a mounting ring (21) mounted on the top of the filter barrel (1); an inner shell (22) is fixedly connected to one side of the bottom of the mounting ring (21); a conical filter screen (23) is provided at the edge of the inner shell (22) and the inner wall of the mounting ring (21); a filter membrane paper (24) is replaceably connected to the inner wall of the conical filter screen (23); a circular filter screen (25) is provided below the inner wall of the inner shell (22); and the side of the inner shell (22) is slidably engaged with the inner wall of the filter barrel (1); The auxiliary component (3) includes a first pumping pump (31) installed and connected to the delivery pipe (12); the discharge port of the first pumping pump (31) is installed and connected to the first filter cartridge barrel (33) through a first connecting pipe (32); the bottom of the first filter cartridge barrel (33) is fixedly connected to the second pumping pump (35) through a first discharge pipe (34); the discharge port of the second pumping pump (35) is installed and connected to the second filter cartridge barrel (37) through a second connecting pipe (36); the bottom of the second filter cartridge barrel (37) is installed and connected to the storage tank (39) through a second discharge pipe (38); the edges of the tops of the first filter cartridge barrel (33) and the second filter cartridge barrel (37) are both engaged and connected with two replacement filter cartridges (310) through an adjustment component.

2. A filtering device for producing transparent 3D printing resin according to claim 1, characterized in that: The adjustment assembly includes two clamps (311) that are engaged with two replacement filter elements (310), the tops of the two clamps (311) are fixedly connected to the bottoms of the two covers (312), the sides of the two covers (312) are fixedly connected to one end of the two groups of sliders (314) through two connecting blocks (313), the sides of the two groups of sliders (314) are slidably connected to the inner walls of the two groups of chute (13), the bottoms of the two groups of sliders (314) are fixedly connected to the telescopic ends of the two groups of electric telescopic rods (315), and the bottoms of the two groups of electric telescopic rods (315) are fixedly connected to the bottoms of the inner walls of the two groups of chute (13).

3. The filtering device for producing transparent 3D printing resin according to claim 1, characterized in that: Two clamping holes (14) are provided on both sides of the top of the filter barrel (1), and the inner walls of the two clamping holes (14) are clamped and connected with clamping joints (26) provided on both sides of the bottom of the mounting ring (21).

4. The filtering device for producing transparent 3D printing resin according to claim 1, characterized in that: The surface of the filter barrel (1) is fixedly connected to a plurality of support rods (16) via a support plate (15).

5. The filtering device for producing transparent 3D printing resin according to claim 1, characterized in that: The inner diameter of the filter hole of the previous replacement filter element (310) is larger than the filter hole of the next replacement filter element (310).

6. The filtering device for producing transparent 3D printing resin according to claim 2, characterized in that: The edges of the bottoms of the two sealing covers (312) are respectively engaged with the edges of the tops of the first filter cartridge barrel (33) and the second filter cartridge barrel (37) through sealing rings.

7. The filtering device for producing transparent 3D printing resin according to claim 2, characterized in that: A control panel (17) is provided on the surface of the mounting frame (11), and the electric telescopic rod (315) is electrically connected to an external power source via the control panel (17).

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