Pneumatic cleaning machine for three-dimensional photocuring 3D printing parts

Abstract

The utility model provides a three-dimensional photocuring 3D printing part pneumatic cleaning machine which comprises a metal groove, the metal groove is composed of a metal outer groove and a metal inner groove, a certain gap is formed between the metal outer groove and the metal inner groove to form a metal inner cavity, first air holes are evenly distributed in the bottom wall of the metal inner groove, and the first air holes are communicated with the metal inner cavity. An air compressor is placed on one side of the metal groove, the air outlet end of the air compressor is fixedly connected with an air outlet main pipe, the end, away from the air compressor, of the air outlet main pipe is fixedly connected with an air inlet pipe, and the end, away from the air outlet main pipe, of the air inlet pipe is communicated with the metal inner cavity. A large number of first air holes are evenly distributed in the bottom wall of the metal inner groove, so that a large number of dense bubble boiling is generated, cleaning is free of dead corners, and the cleaning effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of stereoscopic light-curing 3D printing parts production, in particular to a pneumatic cleaning machine for stereoscopic light-curing 3D printing parts. Background Art

[0002] SLA stereolithography 3D printing technology is based on the principle of photopolymerization of liquid stereolithography 3D printing parts. It takes the CAD model of the parts as the basis, discretizes the model into layer data through layering software, inputs it into the photolithography 3D printer, and uses a UV laser beam (355nm) with a controlled motion trajectory to irradiate the surface of the liquid stereolithography 3D printing part, so that it can be photocured and cross-linked from point to line and from line to surface. After completing the drawing operation of one layer, the forming table moves in the vertical direction by a layer height and then solidifies another layer. This cycle is repeated, layer by layer, to form a three-dimensional solid part.

[0003] After the production is completed, alcohol needs to be used to clean the residue on the model. At present, parts cleaning in the industry mostly relies on manual cleaning and ultrasonic cleaning, but both cleaning methods have disadvantages. Manual cleaning is time-consuming and labor-intensive, and complex structures, holes, and gaps cannot be cleaned. Ultrasonic cleaning is to install high-frequency vibrators on the walls around the cleaning tank. The high-frequency vibration of the vibrator causes the alcohol in the cleaning tank to vibrate, thereby achieving the purpose of cleaning. However, long-term vibration will cause the alcohol to heat up, which in turn causes the parts to deform. In addition, the parts close to the surrounding walls in the cleaning tank have high vibration intensity and good cleaning effect. The parts located in the middle of the cleaning tank cannot be cleaned because they are far away from the vibrator. Therefore, we propose a pneumatic cleaning machine for stereolithography 3D printed parts to improve this. Utility Model Content

[0004] The purpose of the utility model is to improve and innovate the shortcomings and problems existing in the background technology, and to provide a pneumatic cleaning machine for stereolithography 3D printed parts. Compared with the current two cleaning processes, the present application has very obvious improvements in cleaning power, safety, strength and cleaning effect.

[0005] A pneumatic cleaning machine for stereolithography 3D printed parts, comprising a metal tank, the metal tank consisting of a metal outer tank and a metal inner tank, the metal outer tank and the metal inner tank being spaced apart by a certain gap to form a metal inner cavity, first air holes being evenly distributed on the bottom wall of the metal inner tank, an air compressor being placed on one side of the metal tank, an air outlet end of the air compressor being fixedly connected to an air outlet main pipe, an end of the air outlet main pipe being fixedly connected to an air inlet pipe away from the air compressor, and an end of the air inlet pipe being away from the air outlet main pipe being communicated with the metal inner cavity;

[0006] Slide blocks are slidably connected to both sides of the outer wall of the metal trough, a movable air pipe is arranged inside the metal trough, and second air holes are arranged at intervals on the movable air pipe. A connecting hose is fixedly connected to the end of the movable air pipe, and one end of the connecting hose away from the movable air pipe is connected to the air inlet pipe through a three-way pipe, and both ends of the movable air pipe are connected to the slide blocks through a connecting structure;

[0007] The connecting structure includes a first telescopic rod and a second telescopic rod, the bottom end of the first telescopic rod is installed on a slider, the telescopic end of the first telescopic rod is connected to the top end of the second telescopic rod through a connecting rod, the telescopic end of the second telescopic rod is fixedly connected with a fixed sleeve, and the fixed sleeve is installed at both ends of the mobile air pipe.

[0008] A further solution is that the gap between the metal outer groove and the metal inner groove is 1 cm.

[0009] A further solution is that the diameter of the first pore is 0.1-0.3 mm.

[0010] A further solution is that the outlet pressure of the air compressor at the outlet end is 0.7-0.8 MPa.

[0011] Compared with the prior art, the utility model has the following beneficial effects: (1) the utility model evenly distributes a large number of first air holes on the bottom wall of the metal inner tank, thereby generating a large number of dense bubbles boiling, so that there is no dead corner in cleaning and the cleaning effect is better;

[0012] (2) The utility model immerses the movable air pipe in the alcohol solution and drives the movable air pipe to move along the width direction of the metal trough through the cooperation of the motor, the screw rod, the slider and the connecting structure, so that the bubbles generated by the movable air pipe are evenly distributed at various positions of the metal trough, further ensuring that there are no dead angles in the cleaning and achieving a better cleaning effect;

[0013] (3) The utility model facilitates the immersion of the mobile air tube into the alcohol solution through the cooperation between the first telescopic rod and the second telescopic rod, so that the distance between the mobile air tube and the parts is adapted to each other, and the bubbles generated by the mobile air tube can fully remove the residues on the surface of the parts. It is also convenient to move the mobile air tube out of the metal groove, so as to facilitate the removal of the parts and the cleaning of the residues after cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1A schematic diagram of the cross-sectional structure of the device provided by the embodiment of the utility model;

[0016] Figure 2 A schematic diagram of the top view of the device provided by an embodiment of the utility model;

[0017] Figure numerals: metal trough 1, metal outer trough 101, metal inner trough 102, metal inner cavity 2, first air hole 3, air compressor 4, air outlet main pipe 5, air inlet pipe 6, motor 7, screw 8, slider 9, first telescopic rod 10, connecting rod 11, second telescopic rod 12, fixed sleeve 13, movable air pipe 14, second air hole 15, slide rod 16, connecting hose 17. DETAILED DESCRIPTION

[0018] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific implementations and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0021] See also Figure 1 and Figure 2The utility model provides a pneumatic cleaning machine for stereoscopic photocuring 3D printed parts, comprising a metal tank 1, the metal tank 1 consisting of a metal outer tank 101 and a metal inner tank 102, the metal inner tank 101 is used to hold an alcohol solution and photocuring 3D printed parts to be cleaned. The metal outer tank 101 and the metal inner tank 102 are spaced 1 cm apart from each other, and the upper ends of the metal outer tank 101 and the metal inner tank 102 are fixedly connected together to form a closed metal inner cavity 2. The bottom wall of the metal inner tank 102 is evenly distributed with first air holes 3, an air compressor 4 is placed on one side of the metal tank 1, the air outlet end of the air compressor 4 is fixedly connected to an air outlet main pipe 5, the end of the air outlet main pipe 5 away from the air compressor 4 is fixedly connected to an air inlet pipe 6, and the end of the air inlet pipe 6 away from the air outlet main pipe 5 is connected to the metal inner cavity 2. The air outlet pressure of the air compressor 4 is 0.7-0.8MPa. After the air compressor 4 is turned on, the air compressor 4 supplies air to the metal inner cavity 2 through the air outlet manifold 5 and the air inlet pipe 6. The airflow enters the alcohol solution through the first air hole 3, generating bubble boiling, and the bubbles flush the surface of the light-cured 3D printed parts. Since the first air holes 3 are evenly distributed on the bottom wall of the metal inner tank 102, a large number of dense bubble boiling are generated, so that there is no dead angle for cleaning, and the cleaning effect is better. In addition, when using bubble boiling cleaning, the alcohol solution will not be heated, and the parts will not be deformed, and the cleaning is safer.

[0022] Furthermore, sliders 9 are slidably connected to both sides of the outer wall of the metal trough 1, one of the sliders 9 is threadedly connected to the screw rod 8 rotatably connected to the outer wall of the metal trough 1, and one end of the screw rod 8 is fixedly connected to the output end of the motor 7. A movable air pipe 14 is arranged inside the metal trough 1, and second air holes 15 are arranged at intervals on the movable air pipe 14. A connecting hose 17 is fixedly connected to the end of the movable air pipe 14, and the end of the connecting hose 17 away from the movable air pipe 14 is connected to the air inlet pipe 6 through a three-way pipe, and the two ends of the movable air pipe 14 are connected to the slider 9 through a connecting structure. When the motor 7 drives the screw rod 8 to rotate, it will drive the slider 9 to move along the central axis of the screw rod 8, thereby driving the movable air pipe 14 to move along the width direction of the metal trough 1, so that the bubbles generated by the movable air pipe 14 are evenly distributed at various positions of the metal trough 1, further allowing cleaning without dead angles and better cleaning effect.

[0023] Specifically, the connection structure includes a first telescopic rod 10 and a second telescopic rod 12, the bottom end of the first telescopic rod 10 is mounted on the slider 9, the telescopic end of the first telescopic rod 10 is connected to the top of the second telescopic rod 12 through a connecting rod 11, and the telescopic end of the second telescopic rod 12 is fixedly connected with a fixing sleeve 13, and the fixing sleeve 13 is mounted on both ends of the mobile air pipe 14. It can be understood that by extending the first telescopic rod 10, it is convenient to drive the second telescopic rod 12 to move upward and move to the outside of the metal tank 1, and by contracting the second telescopic rod 12, it is convenient to drive the mobile air pipe 14 to move to the outside of the metal tank 1; conversely, it is convenient to immerse the mobile air pipe 14 in the alcohol solution. Therefore, through the mutual cooperation of the first telescopic rod 10 and the second telescopic rod 12, it is convenient to immerse the mobile air pipe 14 in the alcohol solution, so that the distance between the mobile air pipe 14 and the parts is adapted, so that the bubbles generated by the mobile air pipe 14 can fully remove the residue on the surface of the parts, and it is convenient to move the mobile air pipe 14 out of the metal inner tank 102, so as to remove the parts and clean the residue after cleaning.

[0024] In this embodiment, the diameters of the first pores 3 and the second pores 15 are 0.1-0.3 mm.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the utility model.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0027] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Mentioning "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present embodiment application. The appearance of this phrase in various positions in the specification is not necessarily the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It can be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0028] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A pneumatic cleaning machine for stereolithography 3D printed parts, characterized in that: The metal trough (1) comprises a metal outer trough (101) and a metal inner trough (102), the metal outer trough (101) and the metal inner trough (102) are spaced apart from each other by a certain gap to form a metal inner cavity (2), the bottom wall of the metal inner trough (102) is evenly distributed with first air holes (3), an air compressor (4) is placed on one side of the metal trough (1), an air outlet end of the air compressor (4) is fixedly connected to an air outlet main pipe (5), an end of the air outlet main pipe (5) away from the air compressor (4) is fixedly connected to an air inlet pipe (6), and an end of the air inlet pipe (6) away from the air outlet main pipe (5) is connected to the metal inner cavity (2); Slide blocks (9) are slidably connected to both sides of the outer wall of the metal trough (1), a movable air pipe (14) is arranged inside the metal trough (1), and second air holes (15) are arranged at intervals on the movable air pipe (14), and a connecting hose (17) is fixedly connected to the end of the movable air pipe (14), and the end of the connecting hose (17) away from the movable air pipe (14) is connected to the air inlet pipe (6) through a three-way pipe, and both ends of the movable air pipe (14) are connected to the slide blocks (9) through a connecting structure; The connection structure comprises a first telescopic rod (10) and a second telescopic rod (12), the bottom end of the first telescopic rod (10) being mounted on a slider (9), the telescopic end of the first telescopic rod (10) being connected to the top end of the second telescopic rod (12) via a connecting rod (11), the telescopic end of the second telescopic rod (12) being fixedly connected to a fixing sleeve (13), and the fixing sleeve (13) being mounted on both ends of a mobile air pipe (14).

2. A pneumatic cleaning machine for stereolithography 3D printed parts according to claim 1, characterized in that: The gap between the metal outer groove (101) and the metal inner groove (102) is 1 cm.

3. The pneumatic cleaning machine for stereolithography 3D printed parts according to claim 1, characterized in that: The diameter of the first pore (3) is 0.1-0.3 mm.

4. The pneumatic cleaning machine for stereolithography 3D printed parts according to claim 1, characterized in that: The outlet pressure of the air compressor (4) is 0.7-0.8 MPa.

Images