A 3D printing model powder cleaning device

Abstract

The utility model discloses a 3D printing model powder cleaning equipment relates to 3D printing technical field, glove box is equipped with cavity and even communicate cavity's material mouth, dust suction port and bottom discharge port, and material mouth is located glove box's left side or right side, and glove box is equipped with the box door of opening and closing material mouth and the valve of opening and closing bottom discharge port, powder cleaning spray gun is located in the cavity, and the first guide rail subassembly of left and right extension is located in the cavity and is connected glove box, and the first guide rail subassembly is equipped with powder cleaning station, carousel assembly is equipped with the support surface of can place 3D printing model, and the connecting part of carousel assembly can slide into or slide out first guide rail subassembly left and right, makes carousel assembly enter or exit the cavity, and the limiting component in the cavity connects glove box, and can be left and right limit carousel assembly sliding to powder cleaning station, and make carousel assembly drive 3D printing model rotate under the manual action, the utility model discloses convenient operation, need not frequent maintenance, and the space and power consumption are few, and the price is low.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, and in particular to a 3D printing model powder cleaning device. Background Technology

[0002] 3D printing technology is a technique that uses digital model files as a basis and employs powdered metal or non-metal materials to construct objects by bonding them layer by layer during printing. It is widely used in mold making, industrial design, automotive, and aerospace industries. After 3D printing is completed, any unbonded powdery material (or floating old powder) remaining on the printed model needs to be cleaned off.

[0003] With technological advancements and increasing efficiency demands, 3D printing equipment manufacturers have proposed a new type of powder cleaning equipment. This equipment features a conveying mechanism, a clamping mechanism, and a powder cleaning system consisting of moving parts and a pneumatic spray gun within a sealed cleaning space. The conveying mechanism automatically feeds the printed model into and out of the cleaning space, while the clamping mechanism holds and lifts the model to adjust its position. This allows the powder cleaning system to perform a comprehensive cleaning process, completely removing any residual floating powder and saving manpower while improving efficiency. However, this type of powder cleaning equipment has the following drawbacks: complex structure, large size, and significant space requirements; high power consumption during operation; moving parts and the clamping mechanism are easily affected by flying dust, resulting in frequent cleaning and difficult maintenance; and high cost, making it inaccessible to small businesses. Therefore, existing 3D printing powder cleaning equipment requires further structural improvements. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a 3D printing model powder cleaning device that is easy to operate, requires no frequent maintenance, occupies little space and consumes little power, and is also inexpensive.

[0005] This utility model embodiment provides a 3D printing model powder cleaning device, which includes: A glove box is provided with a cavity and a material inlet, a dust suction inlet and a bottom discharge port, all of which are connected to the cavity. The material inlet is located on the left or right side of the glove box. The glove box is also provided with a door that can open and close the material inlet and a valve that can open and close the bottom discharge port. A powder cleaning spray gun is located inside the cavity; The first guide rail assembly extends in the left-right direction and is disposed in the cavity. The first guide rail assembly is fixedly connected to the glove box and is provided with a powder cleaning station. A turntable assembly is provided with a support surface for placing a 3D printed model. The turntable assembly is provided with a connecting part, which is configured to slide into or out of the first guide rail assembly in the left and right direction, so that the turntable assembly can enter and exit the cavity. A limiting component is disposed in the cavity and connected to the glove box. The limiting component is configured to limit the turntable assembly that slides to the powder cleaning station to the left and right, so that the turntable assembly can drive the 3D printed model to rotate under manual operation.

[0006] The 3D printed model powder cleaning device according to the embodiments of this utility model has at least the following beneficial effects: After opening the glove box door, the operator can use an existing handcart to transport the turntable assembly and the 3D printed model to the material inlet position, and then drive the turntable assembly to carry the 3D printed model through the material inlet and move it along the first guide rail assembly to the powder cleaning station. Finally, the turntable assembly is limited to the left and right by the limiting assembly, which can prevent the turntable assembly from easily shifting in the left and right directions during the powder cleaning process; then, after closing the door, the operator can use the operating gloves provided with the glove box to hold the powder cleaning spray gun inside the cavity. The process involves blowing away loose powder from the 3D printed model on the turntable assembly. Simultaneously, workers can apply external force to the turntable assembly, causing it to rotate the 3D printed model around its vertically extending axis, adjusting its position for comprehensive cleaning of loose powder. Furthermore, during the powder cleaning process, existing dust removal equipment connected to the glove box's suction port can be used to absorb and remove dust flying within the chamber, preventing it from obstructing the operator's view and contaminating the surrounding environment when the box door is open.

[0007] The operation of the material feeding and powder cleaning processes is simple and convenient, with low labor intensity. Moreover, the 3D printing model powder cleaning equipment saves on existing electrically driven conveying mechanisms, clamping mechanisms, and moving parts, simplifying the overall structure and reducing its size. This leads to a reduction in the space occupied, power consumption, and price of the 3D printing model powder cleaning equipment. Furthermore, it does not require frequent cleaning and maintenance, making the 3D printing model powder cleaning equipment suitable for small businesses.

[0008] In some embodiments of this utility model, the limiting component includes a plurality of first limiting members and a plurality of second limiting members. The first limiting members and the second limiting members are respectively located on the left and right sides of the powder cleaning station. The plurality of first limiting members are disposed on the side of the powder cleaning station away from the box door and are fixedly connected to the glove box. The plurality of second limiting members are disposed on the side of the powder cleaning station close to the box door and are hinged to the glove box, so that the plurality of second limiting members can swing upward and press against the glove box. The hinge axis of the second limiting members extends in the left and right direction. The plurality of first limiting members and the plurality of second limiting members are configured to contact the outer peripheral surface of the turntable assembly to limit the left and right movement of the turntable assembly located at the powder cleaning station.

[0009] In some embodiments of this utility model, the glove box includes a box body and a sand storage hopper. The box body has a powder cleaning chamber and a lower opening communicating with the powder cleaning chamber. The box body also has an operating glove and an observation window. The observation window is located above the operating glove. The sand storage hopper has a sand storage chamber and a bottom discharge port communicating with the sand storage chamber. The sand storage hopper is located below the powder cleaning chamber and covers the lower opening. The sand storage hopper is fixedly connected to the box body so that the powder cleaning chamber and the sand storage chamber communicate with each other and together form the cavity. The valve is provided on the sand storage hopper.

[0010] In some embodiments of this utility model, the valve includes a flap, a hammer handle, and several hammers. The flap is hinged to the sand storage hopper so that the flap can swing upward or downward. One end of the hammer handle is fixedly connected to the flap, and the other end is fixedly connected to several hammers. The hammer handle is configured to drive the flap to swing upward and abut against the sand storage hopper so that the flap blocks the bottom discharge port.

[0011] In some embodiments of this utility model, the valve further includes a handle, one end of which is connected to the end of the counterweight handle away from the flap.

[0012] In some embodiments of this utility model, the 3D printing model powder cleaning equipment further includes a dust removal component, wherein the dust removal component is provided with a dust removal pipe, one end of which is connected to the dust suction port; and / or, The cavity is equipped with several lamps, which are located above the powder cleaning station and are fixedly connected to the glove box.

[0013] In some embodiments of this utility model, the turntable assembly includes rollers, a base, and a turntable. At least two rollers are provided on both the front and rear sides of the base. The rollers are connected to the bottom of the base and are configured to roll on the first guide rail assembly. The rollers are provided as the connecting part. The turntable is located above the base and is rotatably connected to the base. The rotation axis of the turntable extends in the vertical direction, and the turntable is provided with the support surface.

[0014] In some embodiments of this utility model, the 3D printing model powder cleaning device further includes a sand receiving tray, which is located below the bottom discharge port and is separated from the glove box. The sand receiving tray is configured to collect the powder falling from the bottom discharge port when the valve is opened.

[0015] In some embodiments of this utility model, the 3D printing model powder cleaning device further includes a trolley, which is provided with a blocking component and a second guide rail component extending in the left-right direction. The connecting part is also configured to slide into or out of the second guide rail component in the left-right direction. The second guide rail component is configured to dock with the first guide rail component so that the turntable component can be transferred between the first guide rail component and the second guide rail component. The second guide rail component is provided with a placement station. The blocking component is provided on the trolley and is configured to block the turntable component sliding to the placement station from the left and right.

[0016] In some embodiments of this utility model, the trolley is provided with a handle on the left or right side. The blocking assembly includes a plurality of first blocking members and a plurality of second blocking members. The first blocking members and the second blocking members are respectively located on the left and right sides of the placement station. The plurality of first blocking members are located on the side of the placement station closer to the handle and are fixedly connected to the trolley. The plurality of second blocking members are located on the side of the placement station away from the handle and are hinged to the trolley, so that the plurality of second blocking members can swing upward and press against the trolley. The hinge axis of the second blocking members extends in the left-right direction. The plurality of first blocking members and the plurality of second blocking members are configured to contact the outer peripheral surface of the turntable assembly to block the turntable assembly located at the placement station from the left and right; and / or, The glove box is provided with two guide positioning plates arranged at intervals along the front-back direction. The guide positioning plates are located outside the cavity. The two guide positioning plates are configured to position the second guide rail assembly or the trolley in the front and back directions so that the second guide rail assembly can be accurately docked with the first guide rail assembly.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0018] Figure 1 This is a front view of the 3D printing model powder cleaning device provided according to an embodiment of the present invention, with a handcart configured; Figure 2 This is a top view of the 3D printing model powder cleaning device provided according to an embodiment of the present utility model, with a handcart configured; Figure 3 This is a side view of the 3D printing model powder cleaning device provided according to an embodiment of the present invention, with the door removed. Figure 4 yes Figure 3 An enlarged schematic diagram of part A in the middle.

[0019] Reference numerals: 100, glove box; 110, observation window; 120, operating glove; 130, first guide rail assembly; 141, first limiting member; 142, second limiting member; 150, sand storage hopper; 161, flap; 162, rotating shaft; 163, counterweight handle; 164, counterweight; 165, handle; 170, turntable assembly; 171, roller; 180, cavity; 190, guide positioning plate; 200, trolley; 210, second guide rail assembly; 221, first blocking member; 222, second blocking member; 300, dust removal pipe; 400, lamp tube; 500, sand receiving tray; 600, 3D printed model. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The following is for reference. Figures 1 to 4 This invention describes a powder cleaning device for 3D printed models provided according to an embodiment of the present invention.

[0024] like Figures 1 to 4 As shown, the 3D printing model powder cleaning device according to this embodiment of the present invention can be applied in the 3D printing process to clean floating old powder from the printed model after the 3D printing process has been completed. The 3D printing model powder cleaning device of this embodiment has the advantages of convenient operation, low space occupation, low power consumption, and low price.

[0025] like Figures 1 to 4 As shown, the structure of the 3D printing model powder cleaning equipment includes a glove box 100, a powder cleaning spray gun (not shown in the figure), a first guide rail assembly 130, a turntable assembly 170, and a limiting assembly.

[0026] The glove box 100 has a hollow interior forming a cavity 180. The glove box 100 has a material inlet, a dust suction inlet, and a bottom discharge outlet, all of which are connected to the cavity 180. The material inlet is located on the left or right side of the glove box 100. In this embodiment, the dust suction inlet is located at the top of the glove box 100, and the material inlet is located on the left side of the glove box 100. The glove box 100 also has a door (not shown) and a valve. The door is located corresponding to the material inlet of the glove box 100 and is configured to open and close the material inlet. The door is movably connected to the glove box 100, for example, by sliding or hinged connections. A sealant such as a sealing ring or gasket can be provided in the gap between the door and the glove box 100 to prevent dust inside the cavity 180 from leaking out through the gap when the door is closed. The valve is located at the bottom discharge port of the glove box 100 and is configured to open and close the bottom discharge port of the glove box 100.

[0027] In addition, the glove box 100 itself comes with two operating gloves 120 and an observation window 110. Operators can use the operating gloves 120 to manipulate objects inside the cavity 180, and the observation window 110 allows operators to observe the situation inside the cavity 180. The observation window 110 can be made of glass or transparent acrylic. In this embodiment, as... Figures 1 to 3As shown, two operating gloves 120 are located on the front side of the glove box 100, and an observation window 110 is located above the two operating gloves 120. The observation window 110 is tilted forward from top to bottom.

[0028] Specifically, the glove box 100 includes a box body and a sand storage hopper 150. The box body is hollow, forming a powder cleaning chamber. The box body has a lower opening that connects to the powder cleaning chamber. The box body also includes an operating glove 120 and an observation window 110, with the observation window 110 located above the operating glove 120. The sand storage hopper 150 is hollow, forming a sand storage chamber. The sand storage chamber has an upper opening and a bottom discharge port that connects to the sand storage chamber. The sand storage chamber is wider at the top and narrower at the bottom, allowing floating old powder falling into the sand storage hopper 150 to slide downwards and flow out through the open bottom discharge port. The sand storage hopper 150 is located below the powder cleaning chamber of the box body, and the sand storage hopper 150 covers the lower opening of the box body, so that the upper opening of the sand storage hopper 150 and the lower opening of the box body are vertically opposite and connected. The sand storage hopper 150 is fixedly connected to the housing to allow the cleaning chamber and the sand storage chamber to communicate with each other and together form the cavity 180. A valve is located on the sand storage hopper 150 to control the opening and closing of the bottom discharge port. In addition, multiple support legs are provided at the bottom of the housing to provide strong support for the housing and the sand storage hopper 150.

[0029] Specifically, the valve structure includes a flap 161, a counterweight handle 163, and several counterweights 164. The flap 161 is located outside the sand storage chamber and is hinged to the sand storage hopper 150 via a pivot 162, allowing it to swing upwards or downwards and cover the bottom discharge port of the sand storage hopper 150. In this embodiment, a hinge seat is provided on the outer surface of the sand storage hopper 150, and the pivot 162 on the flap 161 is mounted on the hinge seat, allowing the flap 161 to swing upwards or downwards relative to the hinge seat. The pivot 162 extends in the front-to-back direction. One end of the counterweight handle 163 is fixedly connected to the flap 161, and the other end is fixedly connected to several counterweights 164, for example, by welding. Furthermore, the hammer handle 163 is configured to drive the flap 161 to swing upward and abut against the sand storage hopper 150, so that the flap 161 blocks the bottom discharge port of the sand storage hopper 150, thereby closing the bottom discharge port.

[0030] Understandably, the number of hammers 164 can be selected according to actual needs and is not limited here. Hammers 164 can be bolted to hammer handles 163. Under the weight of hammers 164, hammer handles 163 can automatically drive flappers 161 to swing upwards and press against the sand storage hopper 150, allowing flappers 161 to close the bottom discharge port, enabling the sand storage hopper 150 to continuously collect floating old powder falling from the 3D printed model 600. Workers can apply external force to hammer handles 163 or hammers 164, causing hammer handles 163 to drive flappers 161 downwards, moving flappers 161 away from the bottom discharge port, thus opening the bottom discharge port. After the bottom discharge port is open, workers can use containers such as sand receiving trays 500 to collect and transfer the floating old powder. This uniquely structured valve is not only easy to operate but also avoids the jamming issues that can easily occur with existing electric or pneumatic valves due to floating old powder.

[0031] Furthermore, the valve also includes a handle 165, one end of which is fixedly connected to the end of the counterweight handle 163 away from the flapper 161. The operator can hold the handle 165 to apply force to the valve, causing the counterweight handle 163 to swing the flapper 161 downwards, thus releasing the flapper 161 from obstructing the bottom discharge port. When the external force is removed, the counterweight handle 163 swings in the opposite direction under the gravity of the counterweight 164, causing the flapper 161 to swing upwards and block the bottom discharge port of the sand storage hopper 150.

[0032] The powder cleaning spray gun is housed within the cavity 180 of the glove box 100. The spray gun is pneumatic, therefore its compressed air pipe extends beyond the cavity 180. The gap between the compressed air pipe and the glove box 100 can be sealed with a sealing ring for airtightness. A table or hook for placing the powder cleaning spray gun can be provided within the cavity 180 of the glove box 100. Only one powder cleaning spray gun is permitted. The powder cleaning spray gun is an existing handheld pneumatic spray gun; those skilled in the art should understand its specific structure and working principle, which will not be elaborated upon here.

[0033] The first guide rail assembly 130 extends horizontally and is located within the cavity 180. It is fixedly connected to the glove box 100 and includes a powder cleaning station. Specifically, the first guide rail assembly 130 comprises several first guide rails, which provide support and guidance for the turntable assembly 170. The cross-sectional shape of the first guide rails can be square, V-shaped, or other shapes, and they can be made of I-beams or angle steel. The glove box 100 is equipped with a bracket located below and fixedly connected to the first guide rail assembly 130. The bracket can be composed of multiple support rods.

[0034] The turntable assembly 170 has a support surface for placing the 3D printed model 600. The turntable assembly 170 has a connecting part, which is configured to slide into or out of the first guide rail assembly 130 in the left and right directions, so that the turntable assembly 170 can enter and exit the cavity 180 of the glove box 100. Specifically, the turntable assembly 170 includes rollers 171, a base, and a turntable. At least two rollers 171 are provided on both the front and rear sides of the base. The rollers 171 are connected to the bottom of the base and can rotate relative to the base. The rotation axis of the rollers 171 extends in the front and rear directions. The first guide rail assembly 130 includes two first guide rails, which are respectively arranged corresponding to the rollers 171 on the front and rear sides. The rollers 171 are configured to roll on the first guide rail assembly 130 and serve as the connecting part. The turntable is located above the base, and it can be rotatably connected to the base via bearings, allowing the turntable to rotate smoothly. The rotation axis of the turntable extends in the vertical direction, and the turntable is provided with a support surface.

[0035] In this embodiment, as Figures 2 to 4 As shown, the base and turntable are circular when viewed vertically. The base and turntable are coaxially arranged. The first guide rail is a V-shaped angle steel, and the roller 171 is a V-shaped track wheel that can be adapted to connect with the first guide rail. The first guide rail assembly 130 can guide the turntable assembly 170 in the left and right directions, allowing the turntable assembly 170 to move the 3D printed model 600 to the powder cleaning station. In addition, the first guide rail assembly 130 can also limit the turntable assembly 170 in the front and back directions, preventing the turntable assembly 170 from shifting in the front and back directions.

[0036] A limiting component is located within the cavity 180 of the glove box 100 and is connected to the glove box 100. The limiting component is configured to limit the left and right movement of the turntable assembly 170 as it slides to the powder cleaning station, ensuring that the turntable assembly 170 can rotate the 3D printed model 600 manually and preventing it from easily shifting left and right during powder cleaning. Through the cooperation of the limiting component and the first guide rail assembly 130, the turntable assembly 170 can be positioned on the horizontal plane, ensuring that it can only rotate the 3D printed model 600 on the horizontal plane.

[0037] Specifically, the limiting assembly includes several first limiting members 141 and several second limiting members 142. The first limiting members 141 and second limiting members 142 are located on the left and right sides of the cleaning station, respectively. The first limiting members 141 are located on the side of the cleaning station away from the door and are fixedly connected to the glove box 100. The second limiting members 142 are located on the side of the cleaning station near the door and are hinged to the glove box 100, allowing them to swing upwards or downwards. The hinge axis of the second limiting members 142 extends in the left-right direction. The second limiting members 142 can swing upwards and press against the glove box 100. A plurality of first limiting members 141 and a plurality of second limiting members 142 are configured to contact the outer peripheral surface of the turntable assembly 170 to limit the turntable assembly 170 located at the powder cleaning station to the left and right.

[0038] It is understood that the number of first limiting members 141 can be one or more, and the specific shape of the first limiting members 141 is not limited, as long as they can limit the turntable assembly 170 and prevent the turntable assembly 170 from moving further to the right. The number of second limiting members 142 can be one or more, and the specific shape of the second limiting members 142 is not limited, as long as they can limit the turntable assembly 170 and prevent the turntable assembly 170 from moving to the left. Through the cooperation of the first limiting members 141 and the second limiting members 142, the turntable assembly 170 is limited in the left and right directions. Since the hinge axis of the second limiting member 142 extends in the left and right direction, even if the turntable assembly 170 applies a left and right direction force to the second limiting member 142, it cannot drive the second limiting member 142 to swing downward and release the limiting effect.

[0039] In this embodiment, as Figure 3 and Figure 4 As shown, the second limiting member 142 is inverted L-shaped when viewed from the left and right. The bottom of the second limiting member 142 can be mounted on the bracket of the glove box 100 via a hinge. The second limiting member 142 is located on the left side of the powder cleaning station. The first limiting member 141 is located on the right side of the powder cleaning station.

[0040] When the second limiting member 142 swings upward to its designated position, it contacts the outer circumferential surface of the base or turntable to limit the turntable assembly 170. Simultaneously, the second limiting member 142 abuts downward against the support of the glove box 100, maintaining its position of limiting the turntable assembly 170. When the operator drives the second limiting member 142 to swing downward, it releases its limiting effect on the turntable assembly 170, allowing the turntable assembly 170 to move to the left along the first guide rail assembly 130. Furthermore, the upper end of the second limiting member 142 is provided with a force-applying part. The specific shape of the force-applying part is not limited, but it provides a position for the operator to apply force.

[0041] Of course, it is not excluded that in other embodiments, the second limiting member 142 is slidably connected to the glove box 100 in the front-back direction, or the second limiting member 142 is positioned by a pin.

[0042] In the use of the 3D printing model powder cleaning equipment provided in this embodiment of the utility model, after the operator manually opens the door of the glove box 100, the operator can use the existing handcart 200 to transport the turntable assembly 170 and the 3D printing model 600 to the material port of the glove box 100, and then drive the turntable assembly 170 to carry the 3D printing model 600 through the material port and move along the first guide rail assembly 130 to the powder cleaning station; after the turntable assembly 170 moves to the powder cleaning station, the operator uses the limiting assembly to limit the turntable assembly 170 to the left and right, so as to prevent the turntable assembly 170 from easily displacing in the left and right direction during the powder cleaning process, thereby completing the feeding work of the 3D printing model powder cleaning equipment.

[0043] Next, after closing the box door, the operator can use the operating gloves 120 provided with the glove box 100 to hold the powder cleaning spray gun located in the cavity 180 and blow it onto the 3D printed model 600 on the turntable assembly 170 to remove floating old powder from the 3D printed model 600 in the sealed space, avoiding the dust generated during the powder cleaning process from harming the operator and the workshop environment. At the same time, the operator can apply external force to the turntable of the turntable assembly 170, so that the turntable of the turntable assembly 170 can drive the 3D printed model 600 to rotate around the vertically extending axis, thereby adjusting the position of the 3D printed model 600 on the horizontal plane, thus realizing a comprehensive cleaning of floating old powder from the 3D printed model 600.

[0044] Furthermore, during the dust removal process, workers can connect existing dust removal equipment to the suction port of the glove box 100, allowing the equipment to absorb and remove airborne dust within the cavity 180 during operation. This prevents airborne dust from obstructing the operator's field of vision and from polluting the surrounding environment when the box door is opened. Additionally, workers can use a dust removal spray gun to clean the dust from the first guide rail assembly 130.

[0045] The operation is simple and convenient during material loading and powder cleaning. There is no need for staff to move the turntable assembly 170 and the 3D printed model 600 directly to the powder cleaning station, thus reducing labor intensity. Moreover, the 3D printed model powder cleaning equipment saves the electric drive conveying mechanism, clamping mechanism and moving parts configured in the existing powder cleaning equipment, simplifying the overall structure of the 3D printed model powder cleaning equipment and reducing its own size. This leads to a reduction in the space occupied, power consumption and price of the 3D printed model powder cleaning equipment. In addition, it does not require frequent cleaning and maintenance, thus making the 3D printed model powder cleaning equipment more competitive in the market and very suitable for small enterprises.

[0046] In some embodiments, such as Figure 1 and Figure 3 As shown, the glove box 100 has several lamps 400 inside its cavity 180. The lamps 400 are located above the powder cleaning station and are fixedly connected to the glove box 100. The lamps 400 provide illumination in low-light conditions, allowing workers to clearly see the inside of the cavity 180 and perform powder cleaning on the 3D printed model 600. In this embodiment, there are three lamps 400. One lamp 400 is located on the rear wall of the cavity 180 and extends horizontally. The other two lamps 400 are angled downwards and forwards, located on the left and right sides of the observation window 110, respectively.

[0047] In some embodiments, such as Figures 1 to 3 As shown, the 3D printing model powder cleaning equipment also includes a dust removal component. This component includes a dust removal pipe 300, one end of which is connected to the suction port of the glove box 100. During operation, the dust removal component continuously extracts dust flying within the cavity 180 through the dust removal pipe 300. It is understood that the dust removal component is an existing dust collector, and those skilled in the art should understand its specific structure and working principle; therefore, it will not be described in detail here.

[0048] In some embodiments, such as Figure 1 and Figure 3As shown, the 3D printing model powder cleaning equipment also includes a sand receiving tray 500. The sand receiving tray 500 is located below the bottom discharge port and is separate from the glove box 100. Furthermore, the sand receiving tray 500 is configured to collect powder falling from the bottom discharge port when the valve is opened. It can be understood that the sand receiving tray 500 can be placed directly below the sand storage hopper 150, with a certain vertical distance between the sand receiving tray 500 and the flap 161, allowing the flap 161 to swing downwards and facilitate the smooth flow of floating old powder in the sand storage hopper 150 into the sand receiving tray 500.

[0049] In some embodiments, such as Figure 1 and Figure 2 As shown, the 3D printing model powder cleaning equipment also includes a trolley 200. The trolley 200 has a handle on its left or right side, and also includes a blocking component and a second guide rail component 210. The second guide rail component 210 extends in the left-right direction and is fixedly connected to the trolley 200. The connecting part of the turntable component 170 is configured to slide into or out of the second guide rail component 210 in the left-right direction. The second guide rail component 210 is configured to dock with the first guide rail component 130, allowing the turntable component 170 to move between the first guide rail component 130 and the second guide rail component 210. The second guide rail component 210 has a placement station.

[0050] It is understood that the second guide rail assembly 210 includes a plurality of second guide rails, the shape and number of which are the same as those of the first guide rails, allowing the turntable assembly 170 to move smoothly from the first guide rail assembly 130 to the second guide rail assembly 210, and also to move smoothly from the second guide rail assembly 210 to the first guide rail assembly 130. In this embodiment, the handle of the trolley 200 is located on the left side of the second guide rail assembly 210.

[0051] A blocking component is provided on the trolley 200, and the blocking component is configured to block the turntable assembly 170 that slides to the placement station from the left and right, so as to prevent the turntable assembly 170 from easily shifting in the left and right directions during the movement of the trolley 200.

[0052] Specifically, the blocking assembly includes a plurality of first blocking members 221 and a plurality of second blocking members 222. The first blocking members 221 and second blocking members 222 are located on the left and right sides of the placement station, respectively. The plurality of first blocking members 221 are located on the side of the placement station closer to the handle and are fixedly connected to the trolley 200. The plurality of second blocking members 222 are located on the side of the placement station away from the handle and are hinged to the trolley 200, allowing them to swing upwards or downwards. The hinge axis of the second blocking members 222 extends in the left-right direction. The plurality of second blocking members 222 can swing upwards and press against the trolley 200. The plurality of first blocking members 221 and the plurality of second blocking members 222 are configured to contact the outer peripheral surface of the turntable assembly 170 to provide left-right blocking for the turntable assembly 170 located at the placement station.

[0053] It is understood that the number of first blocking members 221 can be one or more, and the specific shape of the first blocking member 221 is not limited, as long as it can block the turntable assembly 170 and prevent the turntable assembly 170 from moving to the left on the second guide rail assembly 210. The number of second blocking members 222 can be one or more, and the specific shape of the second blocking member 222 is not limited, as long as it can block the turntable assembly 170 and prevent the turntable assembly 170 from moving to the right on the second guide rail assembly 210. Through the cooperation of the first blocking members 221 and the second blocking members 222, the turntable assembly 170 is blocked in the left and right directions. Since the hinge axis of the second blocking member 222 extends in the left and right direction, even if the turntable assembly 170 applies a left and right direction force to the second blocking member 222, it cannot drive the second blocking member 222 to swing downward and release the blocking effect.

[0054] In this embodiment, the second blocking member 222 adopts the shape and installation method of the second limiting member 142, and the second blocking member 222 is installed on the handcart 200 via a hinge. The second blocking member 222 is located on the right side of the placement station, and the first blocking member 221 is located on the left side of the placement station.

[0055] When the second blocking member 222 swings upward into position, it contacts the outer circumference of the base or turntable to block the turntable assembly 170 located at the placement station. Simultaneously, the second blocking member 222 abuts downward against the trolley 200, maintaining its blocking effect on the turntable assembly 170. When the operator drives the second blocking member 222 to swing downward, it releases its blocking effect on the turntable assembly 170, allowing the turntable assembly 170 to move to the right along the second guide rail assembly 210.

[0056] In some embodiments, such as Figure 2 As shown, the glove box 100 is provided with two guide positioning plates 190. The two guide positioning plates 190 are arranged at a certain interval along the front-back direction. The guide positioning plates 190 are located outside the cavity 180 of the glove box 100 and are fixedly connected to the glove box 100. Moreover, the two guide positioning plates 190 are configured to position the second guide rail assembly 210 or the trolley 200 in the front and back, so that the second guide rail assembly 210 can be accurately docked with the first guide rail assembly 130.

[0057] Understandably, in some examples, the front-to-back distance between the two guide positioning plates 190 is equal to the front-to-back dimension of the trolley 200, and the two guide positioning plates act on the trolley 200. The left end of the guide positioning plate 190 has a guide chamfer. When the worker pushes the trolley 200 to the right and approaches the glove box 100, the guide chamfer guides the trolley 200 smoothly into the area defined between the two guide positioning plates 190. At this time, the guide positioning plate 190 contacts the trolley 200, thus completing the positioning of the trolley 200 relative to the glove box 100, allowing the second guide rail assembly 210 to accurately align with the first guide rail assembly 130. Then, the worker can apply external force to the turntable assembly 170 to push it from the second guide rail assembly 210 onto the first guide rail assembly 130. Of course, in other examples, the front-to-back distance between the two guide positioning plates 190 is equal to the front-to-back dimension of the second guide rail assembly 210, and the two guide positioning plates 190 act on the second guide rail assembly 210.

[0058] Since the glove box 100 has a door, the second guide rail assembly 210 needs to extend into the cavity 180 of the glove box 100 and connect with the first guide rail assembly 130 to facilitate the entry and exit of the turntable assembly 170 and the 3D printed model 600 into and out of the glove box 100, thereby reducing the labor intensity and difficulty of loading and unloading.

[0059] 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., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is 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. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A 3D printing model powder cleaning device, characterized in that, include: A glove box is provided with a cavity and a material inlet, a dust suction inlet and a bottom discharge port, all of which are connected to the cavity. The material inlet is located on the left or right side of the glove box. The glove box is also provided with a door that can open and close the material inlet and a valve that can open and close the bottom discharge port. A powder cleaning spray gun is located inside the cavity; The first guide rail assembly extends in the left-right direction and is disposed in the cavity. The first guide rail assembly is fixedly connected to the glove box and is provided with a powder cleaning station. A turntable assembly is provided with a support surface for placing a 3D printed model. The turntable assembly is provided with a connecting part, which is configured to slide into or out of the first guide rail assembly in the left and right direction, so that the turntable assembly can enter and exit the cavity. A limiting component is disposed in the cavity and connected to the glove box. The limiting component is configured to limit the turntable assembly that slides to the powder cleaning station to the left and right, so that the turntable assembly can drive the 3D printed model to rotate under manual operation.

2. The 3D printing model powder cleaning device according to claim 1, characterized in that, The limiting assembly includes a plurality of first limiting members and a plurality of second limiting members. The first limiting members and the second limiting members are respectively located on the left and right sides of the powder cleaning station. The plurality of first limiting members are located on the side of the powder cleaning station away from the box door and are fixedly connected to the glove box. The plurality of second limiting members are located on the side of the powder cleaning station near the box door and are hinged to the glove box so that the plurality of second limiting members can swing upward and press against the glove box. The hinge axis of the second limiting members extends in the left and right direction. The plurality of first limiting members and the plurality of second limiting members are configured to contact the outer peripheral surface of the turntable assembly to limit the left and right movement of the turntable assembly located at the powder cleaning station.

3. The 3D printing model powder cleaning device according to claim 1, characterized in that, The glove box includes a box body and a sand storage hopper. The box body has a powder cleaning chamber and a lower opening communicating with the powder cleaning chamber. The box body also has an operating glove and an observation window, with the observation window located above the operating glove. The sand storage hopper has a sand storage chamber and a bottom discharge port communicating with the sand storage chamber. The sand storage hopper is located below the powder cleaning chamber and covers the lower opening. The sand storage hopper is fixedly connected to the box body so that the powder cleaning chamber and the sand storage chamber communicate with each other and together form the cavity. The valve is located on the sand storage hopper.

4. The 3D printing model powder cleaning device according to claim 3, characterized in that, The valve includes a flap, a hammer handle, and several hammers. The flap is hinged to the sand storage hopper so that the flap can swing upward or downward. One end of the hammer handle is fixedly connected to the flap, and the other end is fixedly connected to several hammers. The hammer handle is configured to drive the flap to swing upward and abut against the sand storage hopper so that the flap blocks the bottom discharge port.

5. The 3D printing model powder cleaning device according to claim 4, characterized in that, The valve also includes a handle, one end of which is connected to the end of the counterweight handle away from the flap.

6. The 3D printing model powder cleaning device according to claim 1, characterized in that, It also includes a dust removal assembly, which has a dust removal pipe, one end of which is connected to the suction port; and / or, The cavity is equipped with several lamps, which are located above the powder cleaning station and are fixedly connected to the glove box.

7. The 3D printing model powder cleaning device according to claim 1, characterized in that, The turntable assembly includes rollers, a base, and a turntable. At least two rollers are provided on both the front and rear sides of the base. The rollers are connected to the bottom of the base and are configured to roll on the first guide rail assembly. The rollers serve as the connecting part. The turntable is located above the base and is rotatably connected to the base. The rotation axis of the turntable extends in the vertical direction, and the turntable is provided with the support surface.

8. The 3D printing model powder cleaning device according to any one of claims 1 to 7, characterized in that, It also includes a sand receiving tray, which is located below the bottom discharge port and is separated from the glove box. The sand receiving tray is configured to collect powder falling from the bottom discharge port when the valve is opened.

9. The 3D printing model powder cleaning device according to any one of claims 1 to 7, characterized in that, It also includes a handcart, which has a blocking component and a second guide rail assembly extending in the left-right direction. The connecting part is also configured to slide into or out of the second guide rail assembly in the left-right direction. The second guide rail assembly is configured to dock with the first guide rail assembly so that the turntable assembly can be transferred between the first guide rail assembly and the second guide rail assembly. The second guide rail assembly has a placement station. The blocking component is located on the handcart and is configured to block the turntable assembly sliding to the placement station from the left and right.

10. The 3D printing model powder cleaning device according to claim 9, characterized in that, The trolley has a handle on its left or right side. The blocking assembly includes a plurality of first blocking members and a plurality of second blocking members. The first blocking members and the second blocking members are respectively located on the left and right sides of the placement station. The plurality of first blocking members are located on the side of the placement station closer to the handle and are fixedly connected to the trolley. The plurality of second blocking members are located on the side of the placement station away from the handle and are hinged to the trolley, so that the plurality of second blocking members can swing upward and press against the trolley. The hinge axis of the second blocking members extends in the left-right direction. The plurality of first blocking members and the plurality of second blocking members are configured to contact the outer peripheral surface of the turntable assembly to block the turntable assembly located at the placement station from the left and right; and / or, The glove box is provided with two guide positioning plates arranged at intervals along the front-back direction. The guide positioning plates are located outside the cavity. The two guide positioning plates are configured to position the second guide rail assembly or the trolley in the front and back directions so that the second guide rail assembly can be accurately docked with the first guide rail assembly.

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