Cleaning liquid recycling device for cleaning residual resin of 3D parts

Abstract

The utility model provides a cleaning fluid recycling device for cleaning residual resin of 3D parts, which comprises a cleaning cylinder, a filter device is mounted in the cleaning cylinder and comprises a filter layer and an adsorption layer, the filter layer is a second filter screen, the adsorption layer is filter cotton, the filter layer is used for filtering support residues and debris substances in cleaning fluid, and the filter layer is used for filtering the support residues and debris substances in the cleaning fluid. The adsorption layer is used for adsorbing residual resin in the cleaning liquid; a blow-off pipe is arranged on the bottom wall of the cleaning cylinder, a blow-off valve is arranged on the blow-off pipe, a liquid drainage pipe is arranged on the side wall of the cleaning cylinder, and a ball valve is arranged on the liquid drainage pipe. According to the cleaning fluid recycling device, the second filter screen is arranged, and supporting residues and chippings in cleaning fluid can be effectively removed. In addition, residual resin components in the cleaning liquid can be fully adsorbed by the filter cotton, so that the cleaning liquid can be recycled, the consumption of the cleaning liquid of an enterprise is greatly reduced, the production cost is reduced, and meanwhile, the generation of hazardous wastes is also reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printing technical field, concretely is a kind of cleaning fluid recycling device for 3D part residual resin cleaning. BACKGROUND

[0002] At present, 3D parts of resin type need to be cleaned with cleaning fluid after printing. Most manufacturers use anhydrous ethanol. With the increase of 3D part output, the amount of anhydrous ethanol is also increasing. After cleaning 3D parts with anhydrous ethanol, the cleaning fluid needs to be collected for secondary use.

[0003] The existing technology mainly uses high-temperature distillation technology. The anhydrous ethanol after cleaning 3D parts is poured into a high-temperature container. The high-temperature container is a double-layer barrel structure. Heat-conducting oil is arranged in the interlayer. The cleaning fluid in the container is heated by heating the heat-conducting oil, so that the cleaning fluid is boiled, the anhydrous ethanol with low boiling point is vaporized, and clean anhydrous ethanol is obtained, realizing the secondary use of waste ethanol. However, this technology has some defects:

[0004] 1) During the heating process of the cleaning fluid, anhydrous ethanol is mainly used to clean the residual epoxy resin on the 3D parts. Therefore, a small amount of epoxy resin is volatilized while the anhydrous ethanol is vaporized during the heating process, which shows a very strong irritating smell, which does not meet the current environmental protection requirements. In addition, the pipeline discharged by the distillation equipment is very small, and the volatilized impurities are easy to cause blockage. Moreover, the distillation equipment needs to be replaced frequently, which makes the equipment inconvenient to maintain and repair.

[0005] 2) The recovery equipment uses high-temperature distillation, and most cleaning fluids are flammable and explosive. Long-term use has a great safety risk. INVENTION CONTENTS

[0006] The utility model aims at improving and innovating the shortcomings and problems in the background art, and provides a cleaning fluid recycling device for cleaning residual resin of 3D parts.

[0007] A cleaning fluid recycling device for cleaning residual resin of 3D parts, comprising a cleaning cylinder, a filter device is installed in the cleaning cylinder, the filter device comprises a filter layer and an adsorption layer, the filter layer is a second filter screen, and the adsorption layer is filter cotton. The filter layer is used to filter out support residues and chippings in the cleaning fluid, and the adsorption layer is used to adsorb residual resin in the cleaning fluid. A blowdown pipe is arranged on the bottom wall of the cleaning cylinder, a blowdown valve is arranged on the blowdown pipe, a liquid discharge pipe is arranged on the side wall of the cleaning cylinder, and a ball valve is arranged on the liquid discharge pipe.

[0008] Further, a cylinder cover is arranged at the top end of the cleaning cylinder.

[0009] Further, the drain pipe is fixedly connected with a first filter cylinder through a flange plate, and a first filter screen is arranged in the inner cavity of the first filter cylinder.

[0010] Further, the cleaning cylinder is composed of a cylindrical part and a conical part, and the bottom end of the cylindrical part is fixedly connected with the top end of the conical part.

[0011] Further, the filter device comprises a second filter cylinder and a filter base plate, one end of the filter base plate is rotatably connected with the bottom end of the second filter cylinder, the other end of the filter base plate is clamped with the bottom end of the second filter cylinder, a second filter screen is arranged on the inner wall of the second filter cylinder, filter cotton is filled between the filter base plate and the second filter screen, a sliding block is arranged on the outer wall of the second filter cylinder, a third hand-held rod is arranged on the sliding block, a sliding groove is arranged on the side wall of the cylindrical part, the sliding groove is slidably connected with the sliding block, and the sliding groove extends from the top wall of the cylindrical part to the middle part of the cylindrical part.

[0012] Further, a limiting groove is arranged on one side of the filter base plate, a groove is arranged on the bottom end of the second filter cylinder, a connecting block is fixedly connected with the bottom wall of the groove through a spring, a clamping block is arranged on the end of the connecting block away from the spring, the clamping block is matched with the limiting groove, the clamping block is a straight-angled trapezoidal block with a downward inclined surface, a first hand-held rod is arranged on the lower surface of the connecting block, and the first hand-held rod extends to the outside of the second filter cylinder through a strip-shaped groove on the second filter cylinder.

[0013] Further, a second hand-held rod is arranged on the end of the filter base plate close to the first hand-held rod.

[0014] Further, a plurality of liquid leakage holes are uniformly arranged on the filter base plate.

[0015] Compared with the prior art, the cleaning liquid recycling device has the following beneficial effects: the second filter screen can effectively remove the supporting residues and debris in the cleaning liquid; the filter cotton can fully adsorb the residual resin components in the cleaning liquid; the device also has a standing and sedimentation function, so that the powder impurities can be deposited at the bottom of the conical part and smoothly discharged from the filter device through the blowdown pipeline; meanwhile, the cleaning liquid can be discharged through the drain pipeline, so that the recycling of the cleaning liquid is realized, the consumption of the cleaning liquid of the enterprise is greatly reduced, the production cost is reduced, and the generation of hazardous waste is reduced. It is worth noting that the whole treatment process only relies on the physical filtering, adsorbing and standing and sedimentation means, so that the safety of the operation is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort on the premise of not paying creative effort.

[0017] Figure 1 A structure schematic view of a cleaning liquid recycling device for cleaning residual resin of a 3D part provided by the embodiments of the present application is shown in the figure.

[0018] Figure 2 A structure schematic view of a cleaning liquid recycling device for cleaning residual resin of a 3D part provided by the embodiments of the present application is shown in the figure. Figure 1 A structure schematic view of a cleaning liquid recycling device for cleaning residual resin of a 3D part provided by the embodiments of the present application is shown in the figure.

[0019] Figure 3 A structure schematic view of a cleaning liquid recycling device for cleaning residual resin of a 3D part provided by the embodiments of the present application is shown in the figure. Figure 2 A structure schematic view of a cleaning liquid recycling device for cleaning residual resin of a 3D part provided by the embodiments of the present application is shown in the figure.

[0020] Figure 4 A structure schematic view of a cleaning liquid recycling device for cleaning residual resin of a 3D part provided by the embodiments of the present application is shown in the figure.

[0021] The drawings are as follows: 1, cleaning cylinder; 101, cylindrical; 1011, chute; 102, conical cylinder; 2, cylinder cover; 3, support frame; 4, liquid discharge pipe; 5, first filter cylinder; 501, first filter screen; 6, ball valve; 7, sewage pipe; 8, sewage valve; 9, filter device; 901, second filter cylinder; 9011, groove; 9012, spring; 9013, connecting block; 9014, clamping block; 9015, first hand rod; 9016, strip-shaped groove; 902, filter bottom plate; 9021, liquid leakage hole; 9022, second hand rod; 9023, limiting groove; 903, second filter screen; 904, filter cotton; 905, sliding block; 906, third hand rod. DETAILED DESCRIPTION

[0022] In order to make the purpose, characteristics and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0023] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the singular forms "a", "an" and "the" include plural references unless the context clearly dictates otherwise. The term "and / or" includes any and all combinations of one or more of the associated listed items.

[0025] Referring to Figures 1-4 The utility model provides a kind of cleaning fluid recycling device for 3D part residual resin cleaning, including cleaning cylinder 1, its shape is vertical cylindrical structure, cleaning cylinder 1 top end cover is equipped with cylinder cover 2, after removing cylinder cover 2, it can be directly handled cleaning fluid is poured into cleaning cylinder 1.The cleaning cylinder 1 is composed of cylinder 101 and conical cylinder 102, the bottom end of cylinder 101 is fixedly connected with the top end of conical cylinder 102, so that its overall modeling is upper cylindrical lower conical modeling.The conical cylinder 102 outside is equipped with support frame 3, and support frame 3 is used to support conical cylinder 102 on ground.Cylinder 101, conical cylinder 102 and support frame 3 are all made of stainless steel material.Cleaning cylinder 1 overall modeling is upper cylindrical lower conical modeling, its height is about 1.5 meters and diameter is about 1 meter, and the height of support frame 3 is about 40 cm.

[0026] Filtering device 9 is installed in the cleaning cylinder 1, and the filtering device 9 includes a second filtering cylinder 901 and a filtering bottom plate 902, and a plurality of liquid leakage holes 9021 are uniformly arranged on the filtering bottom plate 902.The filtering bottom plate 902 is rotatably connected to the bottom end of the second filtering cylinder 901, and the other end of the filtering bottom plate 902 is clamped to the bottom end of the second filtering cylinder 901, so that the bottom end of the second filtering cylinder 901 can be opened and closed by rotating the filtering bottom plate 902.A filtering layer and an adsorption layer are arranged on the filtering device 9, the filtering layer is used to filter out the supporting residues and debris in the cleaning fluid, and the adsorption layer is used to adsorb the residual resin in the cleaning fluid.Specifically, the filtering layer is a second filter screen 903, and the adsorption layer is filter cotton 904.The second filter screen 903 is installed on the inner wall of the second filtering cylinder 901, and the filter cotton 904 is filled between the filtering bottom plate 902 and the second filter screen 903.The mesh diameter of the second filter screen 903 is 0.2-0.3 mm.After the bottom end of the second filtering cylinder 901 is opened, the filter cotton 904 can be replaced conveniently.

[0027] Further, the outer wall of the second filter cartridge 901 is provided with a sliding block 905, the third hand-held rod 906 is installed on the sliding block 905, the sliding groove 1011 is formed in the side wall of the cylinder 101, the sliding groove 1011 is in sliding fit with the sliding block 905, and the sliding groove 1011 extends from the top wall of the cylinder 101 to the middle part of the cylinder 101. On one hand, when the sliding block 905 slides to the bottom end of the sliding groove 1011, the cylinder 101 supports the second filter cartridge 901 through the sliding block 905; on the other hand, the staff holds the third hand-held rod 906, which facilitates pushing the sliding block 905 to move upwards along the sliding groove 1011, and then the second filter cartridge 901 is disassembled from the cylinder 101, so that the supporting residues and the debris on the second filter screen 903 are cleaned and the filter cotton 904 is replaced.

[0028] Preferably, the limiting groove 9023 is formed in one side of the filter bottom plate 902, the recess 9011 is formed in the bottom end of the second filter cartridge 901, the connecting block 9013 is fixedly connected to the bottom wall of the recess 9011 through the spring 9012, the clamping block 9014 is installed at the end of the connecting block 9013 away from the spring 9012, the clamping block 9014 is matched with the limiting groove 9023, and the clamping block 9014 is a straight-angled trapezoidal block with a downward inclined surface. The first hand-held rod 9015 is installed on the lower surface of the connecting block 9013, and extends to the outside of the second filter cartridge 901 after penetrating through the strip-shaped groove 9016 on the second filter cartridge 901 at the bottom end of the first hand-held rod 9015. After the filter cotton 904 is filled, the filter bottom plate 902 is rotated upwards, at this time, the filter bottom plate 902 will extrude the clamping block 9014, so that the clamping block 9014 is retracted into the recess 9011, after the filter bottom plate 902 is rotated in place, the clamping block 9014 is embedded into the limiting groove 9023 under the reset action of the spring 9012, so that the filter bottom plate 902 is stably clamped on the second filter cartridge 901; after the filter cotton 904 is fully adsorbed, the first hand-held rod 9015 is held and pulled to make the clamping block 9014 separate from the limiting groove 9023, so that the filter bottom plate 902 is rotated downwards, so as to replace the filter cotton 904.

[0029] Preferably, the second hand-held rod 9022 is installed at the end of the filter bottom plate 902 close to the first hand-held rod 9015, and the filter bottom plate 902 is conveniently rotated by holding the second hand-held rod 9022.

[0030] Further, the bottom wall of the cleaning cylinder 1 is provided with a drain pipe 7, the drain pipe 7 is provided with a drain valve 8, the side wall of the cleaning cylinder 1 is provided with a liquid discharge pipe 4, and the liquid discharge pipe 4 is provided with a ball valve 6. The liquid discharge pipe 4 is arranged at a position about 10 cm above the connection position of the cylindrical barrel 101 and the conical barrel 102. Although the cleaning liquid is filtered and adsorbed by the second filter cylinder 901, a small amount of impurities will enter the inner cavity of the cleaning cylinder 1 through the liquid leakage hole 9021 on the filter bottom plate 902 together with the cleaning liquid. Therefore, the cleaning liquid in the cleaning cylinder 1 is allowed to stand and deposit, and the impurities in the cleaning liquid will deposit at the bottom, i.e. in the conical barrel 102, and the cleaning liquid is discharged from the cleaning cylinder 1 through the liquid discharge pipe 4.

[0031] The liquid discharge pipe 4 is fixedly connected with the first filter cylinder 5 through a flange plate, and the first filter cylinder 5 is provided with a first filter screen 501 in the inner cavity.

[0032] The working principle of the utility model is as follows: in specific use, first, the second filter cylinder 901 provided with the second filter screen 903 and filled with the filter cotton 904 is placed on the cleaning cylinder 1, and at this time, the sliding block 905 slides to the bottom end of the sliding groove 1011; then, the cleaning liquid to be recycled is poured into the second filter cylinder 901, the second filter screen 903 filters the supporting residues and chippings in the cleaning liquid, the filter cotton 904 adsorbs the residual resin in the cleaning liquid, a small amount of impurities enter the inner cavity of the cleaning cylinder 1 through the liquid leakage hole 9021 on the filter bottom plate 902 together with the cleaning liquid, the cleaning liquid is allowed to stand and deposit in the cleaning cylinder 1 for one day, the ball valve 6 on the liquid discharge pipe 4 is opened, so that the cleaning liquid is discharged from the cleaning cylinder 1 through the liquid discharge pipe 4, and after the cleaning cylinder 1 is continuously operated for half a month, the drain valve 8 on the drain pipe 7 is opened, and the impurities deposited at the bottom end of the cleaning cylinder 1 are discharged through the drain pipe 7.

[0033] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0035] Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The reference to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily indicate the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It will 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 of this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application. Although embodiments of this utility model have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A cleaning solution recycling device for cleaning residual resin in 3D parts, characterized in that: The system includes a cleaning cylinder (1), which is equipped with a filter device (9). The filter device (9) includes a filter layer and an adsorption layer. The filter layer is a second filter screen (903), and the adsorption layer is a filter cotton (904). The filter layer is used to filter out the support residue and debris in the cleaning liquid, and the adsorption layer is used to adsorb the residual resin in the cleaning liquid. A drain pipe (7) is provided on the bottom wall of the cleaning cylinder (1), and a drain valve (8) is provided on the drain pipe (7). A drain pipe (4) is provided on the side wall of the cleaning cylinder (1), and a ball valve (6) is provided on the drain pipe (4).

2. The cleaning solution recycling device for cleaning residual resin in 3D parts according to claim 1, characterized in that: The top of the cleaning cylinder (1) is covered with a cylinder cover (2).

3. The cleaning solution recycling device for cleaning residual resin in 3D parts according to claim 1, characterized in that: The drain pipe (4) is fixedly connected to the first filter cylinder (5) via a flange, and the first filter cylinder (5) has a first filter screen (501) installed inside its cavity.

4. The cleaning solution recycling device for cleaning residual resin in 3D parts according to claim 1, characterized in that: The cleaning cylinder (1) is composed of a cylindrical cylinder (101) and a conical cylinder (102), with the bottom end of the cylindrical cylinder (101) and the top end of the conical cylinder (102) fixedly connected.

5. The cleaning solution recycling device for cleaning residual resin in 3D parts according to claim 4, characterized in that: The filtration device (9) includes a second filter cylinder (901) and a filter base plate (902). One end of the filter base plate (902) is rotatably connected to the bottom end of the second filter cylinder (901), and the other end of the filter base plate (902) is snapped into the bottom end of the second filter cylinder (901). The second filter screen (903) is installed on the inner wall of the second filter cylinder (901). Filter cotton (904) is filled between the filter base plate (902) and the second filter screen (903). A slider (905) is installed on the outer wall of the second filter cylinder (901). A third hand handle (906) is installed on the slider (905). A groove (1011) is opened on the side wall of the cylinder (101). The groove (1011) slides with the slider (905). The groove (1011) extends from the top wall of the cylinder (101) to the middle of the cylinder (101).

6. The cleaning solution recycling device for cleaning residual resin in 3D parts according to claim 5, characterized in that: A limiting groove (9023) is provided on one side of the filter base plate (902), and a groove (9011) is provided at the bottom end of the second filter cylinder (901). A connecting block (9013) is fixedly connected to the bottom wall of the groove (9011) by a spring (9012). A locking block (9014) is installed at the end of the connecting block (9013) away from the spring (9012). The locking block (9014) is adapted to the limiting groove (9023), and the locking block (9014) is a right trapezoidal block with the inclined surface facing down. A first hand handle (9015) is installed on the lower surface of the connecting block (9013). The bottom end of the first hand handle (9015) passes through the strip groove (9016) on the second filter cylinder (901) and extends to the outside of the second filter cylinder (901).

7. The cleaning solution recycling device for cleaning residual resin in 3D parts according to claim 6, characterized in that: A second hand handle (9022) is installed on one end of the filter base plate (902) near the first hand handle (9015).

8. A cleaning solution recycling device for cleaning residual resin in 3D parts according to claim 5, characterized in that: The filter base plate (902) is provided with a plurality of leakage holes (9021) evenly distributed on it.

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