A water washing device for photopolymerized 3D printing resin

Abstract

This utility model relates to the field of photopolymer 3D printing technology, and more particularly to a photopolymer 3D printing resin washing device. The photopolymer 3D printing resin washing device includes a substrate with several support legs mounted on its bottom end; a control box fixedly mounted on the top center of the substrate; and two sets of washing tanks, each with a sealed lid at its top. Each set of washing tanks has a through hole at its bottom center, within which an outer sleeve is slidably installed. A lifting plate is fixed to one end of the outer sleeve extending into the washing tank. A drive component for driving the outer sleeve to slide up and down is mounted on the bottom of the washing tank. A lifting rod is slidably installed inside the outer sleeve, its top end passing through the lifting plate and fixedly mounted on a grid plate for placing the resin model. Several baffles are evenly installed on the outer wall of the grid plate. The photopolymer 3D printing resin washing device provided by this utility model has the advantages of fast cleaning efficiency and high cleaning quality.

Description

Technical Field

[0001] This utility model relates to the field of photopolymer 3D printing technology, and in particular to a water washing device for photopolymer 3D printing resin. Background Technology

[0002] Photopolymer 3D printing, often referred to as SLA or DLP, is known for its excellent surface finish, high resolution, and fine detail. The basic principle of photopolymer technology is to use light of a specific wavelength (usually ultraviolet light) to irradiate liquid photosensitive resin, causing it to undergo a photopolymerization reaction and instantly solidify from a liquid state into a solid state.

[0003] After printing with water-washable resin using photopolymerization, a layer of uncured, viscous liquid resin remains on the model surface. If not cleaned, this can cause the model surface to become sticky and rough; it can also affect subsequent curing, as the residual resin can obstruct ultraviolet light penetration; and it results in poor long-term stability, potentially leading to model deformation, cracking, or changes in properties. Existing water-washing devices for water-washable resin-printed models are mostly simple devices that use containers to hold the washing solution (isopropanol or high-concentration 95% ethanol) to immerse the freshly printed model in water. This method is inefficient and produces poor washing quality.

[0004] Therefore, it is necessary to provide a new water washing device for photocurable 3D printing resin to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a water washing device for photocurable 3D printing resin.

[0006] The photopolymer 3D printing resin washing device provided by this utility model includes: a substrate, and a plurality of support legs are installed at the bottom end of the substrate.

[0007] The control box is fixedly installed at the top center of the base plate;

[0008] The washing tubs are provided in two sets. Each set of washing tubs has a sealed lid at its top and a through hole at the center of its bottom. An outer sleeve is slidably installed within the through hole. A lifting plate is fixed to one end of the outer sleeve that extends into the washing tub. A drive unit is installed at the bottom of the washing tub to drive the outer sleeve to slide up and down. A lifting rod is slidably installed inside the outer sleeve. The top of the lifting rod passes through the lifting plate and is fixedly installed with a grid plate for placing resin models. Several baffles are evenly installed on the outer wall of the grid plate. An electric rod is embedded in the center of the base plate. The electric rod is electrically connected to a control box, and a horizontal connecting plate is fixedly installed at the downward-facing extension end of the electric rod. I-beam connectors are fixedly installed at both ends of the horizontal connecting plate. A T-slot is provided at the bottom of the lifting rod for insertion into the I-beam connector.

[0009] Preferably, the inner wall of the through hole at the center of the bottom of the washing tub is provided with a groove, and a sealing felt is embedded in the groove.

[0010] Preferably, the outer wall of the lifting plate is slidably fitted with the inner wall of the washing tub, and both the outer and inner walls of the lifting plate are provided with grooves, in which sealing rings are embedded.

[0011] Preferably, the driving component includes a suspension frame, which is fixedly installed at the bottom of the washing tub, and a power motor is fixedly installed on the suspension frame. A wheel is fixedly sleeved on the output shaft of the power motor, and a connecting column is fixedly installed on the edge of the wheel away from the power motor. A transmission plate is hinged to the connecting column, and a transmission rod is hinged to the end of the transmission plate away from the connecting column. The transmission rod is fixedly connected to the bottom outer wall of the outer sleeve, and the power motor is electrically connected to the control box.

[0012] Preferably, the I-beam connector includes a base plate, which is fixedly connected to a cross plate. A round rod is integrally formed at the top of the base plate, and a disc is integrally formed at the top of the round rod. The diameter of the disc is equal to the width of the long groove of the T-slot.

[0013] Preferably, a fixed gear is fixedly sleeved on the outer wall of the bottom end of the lifting rod, a servo motor is fixedly installed on the side of the horizontal connecting plate near the fixed gear, a transmission gear is fixedly sleeved on the output shaft of the servo motor, the transmission gear meshes with the fixed gear, and the servo motor is electrically connected to the control box.

[0014] Preferably, a transparent observation window is embedded on one side of the washing tub.

[0015] Compared with related technologies, the photopolymer 3D printing resin washing device provided by this utility model has the following beneficial effects:

[0016] 1. This utility model provides a water washing device for photopolymer 3D printing resin. By setting an outer sleeve inside the water washing tank, the outer sleeve is driven by a drive drum assembly, which can drive the lifting plate to move up and down inside the water washing tank, thereby pushing the water washing agent in the water washing tank to surge, so as to clean the resin model placed inside.

[0017] 2. When the washing liquid in the washing tub is surging, the resin model placed on the grid plate can rotate inside the washing tub under the drive of the electric rod and servo motor, thereby removing the residual resin and further improving the washing quality. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the photopolymer 3D printing resin washing device provided by this utility model;

[0019] Figure 2 A cross-sectional structural schematic diagram of the photopolymer 3D printing resin washing device provided by this utility model;

[0020] Figure 3 A schematic diagram of the lifting rod provided by this utility model;

[0021] Figure 4 A schematic diagram of the structure of the electric pole provided by this utility model, which is equipped with a cross plate and an I-beam connector;

[0022] Figure 5 for Figure 2 A magnified view of a portion of A is shown.

[0023] The following are the labeling elements in the diagram: 1. Base plate; 11. Support leg; 2. Washing tub; 21. Sealed tub lid; 22. Observation window; 3. Outer sleeve; 4. Lifting plate; 5. Drive component; 51. Suspension frame; 52. Power motor; 53. Wheel; 54. Connecting column; 55. Transmission plate; 56. Transmission rod; 6. Lifting rod; 61. Grid plate; 611. Stop bar; 62. Fixed gear; 63. Servo motor; 64. Transmission gear; 601. T-slot; 7. Electric rod; 71. Horizontal connecting plate; 8. I-beam connector; 81. Base plate; 82. Round rod; 83. Round disc; 9. Control box. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Please see Figures 1 to 5This utility model provides a photopolymer 3D printing resin washing device, which includes: a substrate 1 with several support legs 11 mounted on the bottom end of the substrate 1; a control box 9 fixedly mounted on the top center of the substrate 1; and two sets of washing tanks 2, each set of which has a sealing lid 21 mounted on its top end. Each set of washing tanks 2 has a through hole at the bottom center, and an outer sleeve 3 is slidably mounted within the through hole. A lifting plate 4 is fixed to one end of the outer sleeve 3 that extends into the washing tank 2, and a drive outer sleeve 3 is mounted on the bottom end of the washing tank 2. The drive component 5 slides up and down. A lifting rod 6 is slidably installed inside the outer sleeve 3. The top of the lifting rod 6 passes through the lifting plate 4 and is fixedly installed with a grid plate 61 for placing resin models. Several baffles 611 are evenly installed on the outer side wall of the grid plate 61. An electric rod 7 is embedded in the middle of the base plate 1. The electric rod 7 is electrically connected to the control box 9. The telescopic end of the electric rod 7 faces downward and is fixedly installed with a horizontal connecting plate 71. I-beam connectors 8 are fixedly installed at both ends of the horizontal connecting plate 71. A T-slot 601 is opened at the bottom of the lifting rod 6 to insert into the I-beam connector 8.

[0027] It should be noted that during use, the two sets of washing tanks 2 are classified and labeled, one for preliminary rough washing and the other for secondary fine washing. The washing solution (isopropanol or high-concentration 95% ethanol) injected into both sets of washing tanks 2 is the same. The preliminary rough washing tank 2 contains more residual resin that has been washed away. To improve the washing quality, after the rough washing, the resin model is dried and transferred to the fine washing tank for a secondary wash. During the wash, the molded resin model to be washed is first placed on the grid plate 61 inside the preliminary rough washing tank 2, and the stop bar 611 is used for limiting and protection. Then, the control box 9 controls the electric rod 7, which uses the cross plate 71 to drive the lifting rod 6, moving the grid plate 61 downwards along the washing tank 2 until the resin model is submerged below the surface of the washing solution inside the washing tank 2. After immersion, the top of the washing tank 2 is sealed with the sealing lid 21. Then, the drive unit 5 is activated to drive the outer sleeve 3 to move the lifting plate 4 up and down inside the washing tank 2, thereby causing the washing liquid inside the washing tank 2 to surge up and down, thus rinsing the resin residue on the resin model and improving the washing efficiency. After the rough washing is completed, the sealing lid 21 is opened, and then the electric rod 7 is controlled to drive the lifting rod 6 to rise along the outer sleeve 3 using the cross plate 71, thereby causing the grid plate 61 and the resin model to detach from the washing liquid in the washing tank 2 until they are completely removed from the washing liquid. Then, the resin model is left to stand to drain. After draining, the resin model is transferred to the grid plate 61 in the fine washing tank 2 and then washed a second time in the washing tank 2, which can improve the washing quality.

[0028] It should also be noted that: drain pipes are installed on one side of the bottom of the two sets of washing tubs 2. The drain pipes have built-in control valves. The drain pipes are flush with the bottom limit position of the lifting plate 4, which is not shown in the figure. This makes it easy to drain and replace the washing liquid in the washing tubs 2.

[0029] Furthermore, to improve the washing effect, an ultrasonic device can be installed inside the washing tub 2. Ultrasonic washing can further improve the washing quality and efficiency.

[0030] In this embodiment: the inner wall of the through hole at the bottom center of the washing tub 2 is provided with a groove, and a sealing felt is embedded in the groove. The outer wall of the lifting plate 4 is slidably engaged with the inner wall of the washing tub 2, and both the outer and inner walls of the lifting plate 4 are provided with grooves, and sealing rings are embedded in the grooves. This can achieve internal sealing of the washing tub 2. When the outer sleeve 3 moves up and down along the washing tub 2, the lifting plate 4 moves up and down inside the washing tub 2, and the lifting rod 6 moves up and down along the lifting plate 4, the washing liquid in the washing tub 2 is always trapped above the lifting plate 4 and will not leak.

[0031] In the embodiments of this utility model, please refer to Figures 1 to 5 The drive unit 5 includes a suspension frame 51, which is fixedly installed at the bottom of the washing tub 2. A power motor 52 is fixedly installed on the suspension frame 51. A wheel 53 is fixedly sleeved on the output shaft of the power motor 52. A connecting column 54 is fixedly installed on the edge of the wheel 53 away from the power motor 52. A transmission plate 55 is hinged on the connecting column 54. A transmission rod 56 is hinged on the end of the transmission plate 55 away from the connecting column 54. The transmission rod 56 is fixedly connected to the bottom outer wall of the outer sleeve 3. The power motor 52 is electrically connected to the control box 9.

[0032] It should be noted that when the drive component 5 is in use, the power motor 52 is started by controlling the power motor 52 to drive the wheel 53 to rotate. When the wheel 53 rotates, it pulls the transmission rod 56 through the connecting column 54 and the transmission plate 55 to drive the outer sleeve 3 to move up and down along the washing tub 2, thereby driving the lifting plate 4 to move up and down inside the washing tub 2, so as to drive the internal washing liquid to surge.

[0033] In the embodiments of this utility model, please refer to Figures 1 to 5 The I-beam connector 8 includes a base plate 81, which is fixedly connected to the cross plate 71. A round rod 82 is integrally formed at the top of the base plate 81, and a disc 83 is integrally formed at the top of the round rod 82. The diameter of the disc 83 is equal to the width of the long groove of the T-slot 601.

[0034] A fixed gear 62 is fixedly sleeved on the outer side wall of the bottom end of the lifting rod 6. A servo motor 63 is fixedly installed on the side of the horizontal connecting plate 71 near the fixed gear 62. A transmission gear 64 is fixedly sleeved on the output shaft of the servo motor 63. The transmission gear 64 meshes with the fixed gear 62. The servo motor 63 is electrically connected to the control box 9.

[0035] It should be noted that when the horizontal connecting plate 71 moves the lifting rod 6 up and down using the I-beam connector 8, the servo motor 63 can be controlled to run at a low speed. This allows the transmission gear 64 to drive the fixed gear 62 to rotate the lifting rod 6 around the disc 83 at a low speed. In this way, during water washing, the lifting rod 6 can drive the resin model on the grid plate 61 to rotate at a low speed, thereby further improving the efficiency of water washing.

[0036] In the embodiments of this utility model, please refer to Figures 1 to 5 A transparent observation window 22 is embedded on one side of the washing tub 2.

[0037] It should be noted that this allows for observation of the inside of the washing tub 2 through the observation window 22 during the washing process, facilitating visual inspection of the washing effect.

[0038] The working principle of the photopolymer 3D printing resin washing device provided by this utility model is as follows:

[0039] In use, the two sets of washing tanks 2 are classified and labeled, one for preliminary rough washing and the other for secondary fine washing. Both sets of washing tanks 2 are filled with the same washing solution. The preliminary rough washing tank 2 contains more residual resin that has been washed away. To improve the washing quality, after the rough washing, the resin model is dried and transferred to the fine washing tank for a secondary wash. During washing, the molded resin model to be washed is first placed on the grid plate 61 inside the preliminary rough washing tank 2, and limited and protected by the stop bar 611. Then, the control box 9 controls the electric rod 7 to drive the lifting rod 6 via the cross plate 71, moving the grid plate 61 downwards along the washing tank 2 until the resin model is submerged below the washing solution surface. After submersion, the top of the washing tank 2 is sealed with the sealing lid 21, and the power motor 52 is started. The drive wheel 53 rotates, and when the wheel 53 rotates, it pulls the transmission rod 56 through the connecting column 54 and the transmission plate 55 to drive the outer sleeve 3 to move up and down along the washing tank 2, thereby driving the lifting plate 4 to move up and down in the washing tank 2, so as to drive the internal washing liquid to surge, thereby rinsing the resin residual on the resin model and improving the washing efficiency. After the rough washing is completed, the sealing tank cover 21 is opened, and then the electric rod 7 is controlled to drive the lifting rod 6 to rise along the outer sleeve 3 through the cross connecting plate 71, thereby driving the grid plate 61 and the resin model to separate from the washing liquid in the washing tank 2 until they are completely separated from the washing liquid. Then, the resin model is left to stand to drain. After draining, the resin model is transferred to the grid plate 61 in the fine washing tank 2, and then a second washing is performed in the washing tank 2, which can improve the washing quality.

[0040] Furthermore, during the washing process, the servo motor 63 is controlled to run at a low speed, thereby using the transmission gear 64 to drive the fixed gear 62 to drive the lifting rod 6 to rotate at a low speed around the disc 83. In this way, during the washing process, the lifting rod 6 can drive the resin model on the grid plate 61 to rotate at a low speed, thereby further improving the washing efficiency.

[0041] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A water washing device for photopolymerized 3D printing resin, comprising: A substrate (1) having a plurality of support legs (11) mounted on its bottom end; The control box (9) is fixedly installed at the top center of the base plate (1); Its characteristic is that it further includes: Two sets of washing tubs (2) are provided. Each set of washing tubs (2) has a sealed lid (21) installed at its top. A through hole is opened at the center of the bottom of each set of washing tubs (2). An outer sleeve (3) is slidably installed inside the through hole. A lifting plate (4) is fixed to one end of the outer sleeve (3) that extends into the washing tub (2). A driving component (5) for driving the outer sleeve (3) to slide up and down is installed at the bottom of the washing tub (2). A lifting rod (6) is slidably installed inside the outer sleeve (3). The top end of the lifting rod (6) passes through the lifting plate (4) and... A grid plate (61) for placing resin models is fixedly installed. Several baffles (611) are evenly installed on the outer side wall of the grid plate (61). An electric rod (7) is embedded in the middle of the base plate (1). The electric rod (7) is electrically connected to the control box (9). The telescopic end of the electric rod (7) faces downward and is fixedly installed with a horizontal connecting plate (71). I-beam connectors (8) are fixedly installed at both ends of the horizontal connecting plate (71). A T-slot (601) for inserting into the I-beam connector (8) is opened at the bottom end of the lifting rod (6).

2. The photopolymer 3D printing resin washing device according to claim 1, characterized in that, The inner wall of the through hole at the bottom center of the washing tub (2) is provided with a groove, and a sealing felt is embedded in the groove.

3. The photopolymer 3D printing resin washing device according to claim 1, characterized in that, The outer wall of the lifting plate (4) slides in conjunction with the inner wall of the washing tub (2), and both the outer and inner walls of the lifting plate (4) are provided with grooves, in which sealing rings are embedded.

4. The photopolymer 3D printing resin washing device according to claim 1, characterized in that, The drive unit (5) includes a suspension frame (51), which is fixedly installed at the bottom of the washing tub (2). A power motor (52) is fixedly installed on the suspension frame (51). A wheel (53) is fixedly sleeved on the output shaft of the power motor (52). A connecting column (54) is fixedly installed on the edge of the wheel (53) away from the power motor (52). A transmission plate (55) is hinged on the connecting column (54). A transmission rod (56) is hinged on the end of the transmission plate (55) away from the connecting column (54). The transmission rod (56) is fixedly connected to the bottom outer wall of the outer sleeve (3). The power motor (52) is electrically connected to the control box (9).

5. The photopolymer 3D printing resin washing device according to claim 1, characterized in that, The I-beam connector (8) includes a base plate (81), which is fixedly connected to a cross plate (71). A round rod (82) is integrally formed at the top of the base plate (81), and a disc (83) is integrally formed at the top of the round rod (82). The diameter of the disc (83) is equal to the width of the long groove of the T-slot (601).

6. The photopolymer 3D printing resin washing device according to claim 1, characterized in that, A fixed gear (62) is fixedly sleeved on the outer side wall of the bottom end of the lifting rod (6). A servo motor (63) is fixedly installed on the side of the horizontal connecting plate (71) near the fixed gear (62). A transmission gear (64) is fixedly sleeved on the output shaft of the servo motor (63). The transmission gear (64) meshes with the fixed gear (62). The servo motor (63) is electrically connected to the control box (9).

7. The photopolymer 3D printing resin washing device according to claim 1, characterized in that, A transparent observation window (22) is fitted on one side of the washing tub (2).

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