Discharging device of photosensitive resin mixing tank

Abstract

The utility model relates to the technical field of photosensitive resin production, and particularly discloses a discharge device of a photosensitive resin mixing tank, which comprises an upper filter tube connected with a discharge port of the mixing tank and a lower filter tube connected with the upper filter tube, a circular filter disc is arranged in the upper filter tube, upper filter holes are arranged on the filter disc, a tubular filter element is arranged in the lower filter tube, and the lower filter element is provided with lower filter holes. The upper end of the filter element is in butt joint with the upper filter pipe, the lower end of the filter element is of a closed structure, and lower filter holes are formed in the side wall of the filter element; the photosensitive resin filtering device is arranged at the discharge port of the mixing tank, and is used for filtering impurities before photosensitive resin is discharged, so that the quality of the photosensitive resin is further improved; the device is simple in structure and convenient to disassemble, assemble, clean and use.

Description

Technical Field

[0001] The utility model relates to the technical field of photosensitive resin manufacturing, in particular to a discharging device of a photosensitive resin mixing tank. Background Art

[0002] Photosensitive resin refers to the material used for photocuring rapid prototyping, which is a liquid photocurable resin, or liquid photosensitive resin, mainly composed of polymers, photoinitiators, and diluents. In the past two years, photosensitive resins have been used in the emerging industry of 3D printing, and are favored and valued by the industry because of their excellent properties. In the production of photosensitive resin, powders or liquids such as epoxy acrylate resin, trimethylolpropane triacrylate, and photoinitiators are poured into a mixing tank and mixed evenly to obtain photosensitive resin.

[0003] Patent CN218398936U discloses a mixing device for photosensitive resin production, and the mixed photosensitive resin is discharged through a discharge port at the bottom of a mixing box. Even after mixing and stirring, it is not ruled out that powder impurities may exist in the obtained photosensitive resin, and its quality cannot be guaranteed. Utility Model Content

[0004] The utility model aims at the above-mentioned deficiencies in the prior art and provides a discharging device for a photosensitive resin mixing tank, which is installed at the discharging port of the mixing tank to filter impurities before the photosensitive resin is discharged, thereby further improving the quality of the photosensitive resin. The device has a simple structure, is easy to disassemble and clean, and is easy to use.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A discharge device for a photosensitive resin mixing tank comprises an upper filter tube connected to a discharge port of the mixing tank and a lower filter tube connected to the upper filter tube, wherein a circular filter disc is arranged in the upper filter tube, and an upper filter hole is arranged on the filter disc, and a tubular filter element is arranged in the lower filter tube, wherein the upper end of the filter element is connected to the upper filter tube, and the lower end of the filter element is a closed structure, and a lower filter hole is arranged on the side wall of the filter element.

[0007] Preferably, both ends of the upper filter tube are provided with internal threads and external threads respectively, one end provided with the external threads is connected to a discharge pipe, the diameter of the discharge pipe is smaller than the diameter of the upper filter tube, and the filter plate is located at the upper end of the discharge pipe.

[0008] Preferably, the lower filter tube is sleeved on the outside of the upper filter tube, and the lower filter tube cooperates with the external thread.

[0009] Preferably, a sealing ring is sleeved on the lower end of the discharge pipe, a tray is sleeved on the upper end of the filter element, and a sealing groove cooperating with the sealing ring is provided on the upper end of the tray.

[0010] Preferably, a support rod is provided in the lower filter tube, a positioning column is provided at the upper end of the support rod, and a positioning hole cooperating with the positioning column is provided at the bottom of the filter element.

[0011] Preferably, the diameter of the lower filter hole is smaller than the diameter of the upper filter hole.

[0012] Preferably, the filter element is located in the middle of the lower filter tube.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is installed at the discharge port of the mixing tank to filter impurities before the photosensitive resin is discharged, thereby further improving the quality of the photosensitive resin; the device has a simple structure, is easy to disassemble and clean, and is easy to use.

[0015] 2. The filter disc and filter element of the utility model are both detachable, which improves the thoroughness and convenience of cleaning.

[0016] 3. The utility model realizes screening layer by layer and level by level, and prevents impurities from accumulating and clogging, so that the photosensitive resin can flow more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 Schematic diagram of the structure of the upper filter tube;

[0019] Figure 3 Schematic diagram of the filter element structure Figure 1 ;

[0020] Figure 4 Schematic diagram of the filter element structure Figure 2 ;

[0021] Figure 5 It is a schematic diagram of the structure when the utility model is used;

[0022] In the figure: 1-upper filter tube; 101-internal thread; 102-external thread; 103-discharge pipe; 104-sealing ring; 2-filter plate; 3-lower filter tube; 301-support rod; 302-positioning column; 4-filter element; 401-lower filter hole; 402-tray; 403-sealing groove; 404-positioning hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 As shown, a discharge device for a photosensitive resin mixing tank comprises an upper filter tube 1 connected to a discharge port of the mixing tank and a lower filter tube 3 connected to the upper filter tube 1, wherein a circular filter disc 2 is arranged in the upper filter tube 1, and an upper filter hole is arranged on the filter disc 2, and a tubular filter element 4 is arranged in the lower filter tube 3, wherein the filter element 4 is located in the middle of the lower filter tube 3, and the four sides of the filter element 4 are at the same distance from the inner wall of the lower filter tube 3, the upper end of the filter element 4 is connected to the upper filter tube 1, and the lower end of the filter element 4 is a closed structure, and a lower filter hole 401 is arranged on the side wall of the filter element 4.

[0025] In order to ensure the smoothness of the flow of the photosensitive resin, the diameter of the lower filter hole 401 is smaller than the diameter of the upper filter hole, so as to achieve layered and step-by-step filtering and prevent all impurities from being accumulated together.

[0026] like Figure 2 As shown, both ends of the upper filter tube 1 are respectively provided with an internal thread 101 and an external thread 102, one end of the internal thread 101 is threadedly connected to the discharge port of the mixing tank, and one end of the external thread 102 is connected to a discharge pipe 103, the diameter of the discharge pipe 103 is smaller than the diameter of the upper filter tube 1, the filter disc 2 is located at the upper end of the discharge pipe 103, and the filter disc 2 can be taken out from the upper end of the upper filter tube 1 for easy cleaning.

[0027] The lower filter tube 3 is sleeved on the outer portion of the upper filter tube 1 , and the lower filter tube 3 is matched with the external thread 102 .

[0028] A sealing ring 104 is provided at the lower end of the discharge pipe 103. Figure 3 As shown, the upper end of the filter element 4 is covered with a tray 402, and the upper end of the tray 402 is provided with a sealing groove 403 that cooperates with the sealing ring 104. As the lower filter tube 3 cooperates with the upper filter tube 1, the sealing ring 104 is pressed tightly in the sealing groove 403 to achieve a sealed connection between the discharge pipe 103 and the filter element 4, and at the same time the lower filter tube 3 is connected to the upper filter tube 1 in place.

[0029] In order to facilitate cleaning, the filter element 4 is detachable, and a horizontal support rod 301 is provided in the lower filter tube 3, and a positioning column 302 is provided at the upper end of the support rod 301. Figure 4 As shown, a positioning hole 404 cooperating with the positioning column 302 is provided at the bottom of the filter element 4 , and the filter element 4 is positioned by the positioning column 302 , and the filter element 4 is taken out from the upper end of the lower filter tube 3 .

[0030] like Figure 5 As shown, when in use, the filter disc 2 is placed in the upper filter tube 1, the upper filter tube 1 is connected to the discharge port of the mixing tank, the filter element 4 is placed in the lower filter tube 3, the filter element 4 cooperates with the positioning column 302, the upper and lower filter tubes 3 are threadedly connected with the bottom of the upper filter tube 1, and the lower filter tube 3 is rotated until the sealing ring 104 is pressed tightly in the sealing groove 403. The photosensitive resin passes through the upper filter tube 1 and the filter disc 2 for initial filtration to filter out impurities with larger particles, and then enters the lower filter tube 3, and filters impurities with smaller particles through the filter element 4, and the filtered photosensitive resin is discharged from the bottom of the lower filter tube 3.

[0031] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A discharging device for a photosensitive resin mixing tank, characterized in that: It comprises an upper filter tube connected to the discharge port of the mixing tank and a lower filter tube connected to the upper filter tube, wherein a circular filter disc is arranged in the upper filter tube, and an upper filter hole is arranged on the filter disc, and a tubular filter element is arranged in the lower filter tube, wherein the upper end of the filter element is connected to the upper filter tube, and the lower end of the filter element is a closed structure, and a lower filter hole is arranged on the side wall of the filter element.

2. A discharge device for a photosensitive resin mixing tank as claimed in claim 1, characterized in that: The two ends of the upper filter tube are respectively provided with internal threads and external threads, one end provided with external threads is connected with a discharge pipe, the diameter of the discharge pipe is smaller than the diameter of the upper filter tube, and the filter disc is located at the upper end of the discharge pipe.

3. A discharge device for a photosensitive resin mixing tank as claimed in claim 2, characterized in that: The lower filter tube is sleeved on the outside of the upper filter tube, and the lower filter tube is matched with the external thread.

4. A discharge device for a photosensitive resin mixing tank as claimed in claim 2, characterized in that: The lower end of the discharge pipe is covered with a sealing ring, the upper end of the filter element is covered with a tray, and the upper end of the tray is provided with a sealing groove matched with the sealing ring.

5. A discharge device for a photosensitive resin mixing tank as claimed in claim 1, characterized in that: A support rod is arranged in the lower filter tube, a positioning column is arranged at the upper end of the support rod, and a positioning hole matched with the positioning column is arranged at the bottom of the filter element.

6. A discharging device for a photosensitive resin mixing tank as claimed in claim 1, characterized in that: The diameter of the lower filter hole is smaller than the diameter of the upper filter hole.

7. A discharge device for a photosensitive resin mixing tank as claimed in claim 1, characterized in that: The filter element is located in the middle of the lower filter tube.

Images