Spin dryer for 3D printed products

Abstract

The drying machine comprises a rack, a drying chamber installed on the rack, a separating device and a driving device on the lower side of the drying chamber, the drying chamber is loaded with a plurality of printing platforms bearing objects to be dried, and the middle of the drying chamber is provided with a center line extending in the vertical direction; the multiple printing platforms are sequentially distributed in the circumferential direction of the center line. The separating device can be rotatably installed in the spin-drying chamber around the center line, the separating device comprises a separating frame and a plurality of spin-drying stations which are sequentially arranged in the circumferential direction of the separating frame, each spin-drying station is provided with at least one connecting hook so as to load at least one printing platform, and all the connecting hooks are hinged to the separating frame; the driving device is in transmission connection with the separating frame to drive the separating frame to rotate around the center line. The separating device is simple in structure, the printing platform bearing the to-be-spin-dried object is hooked through the connecting hook when the separating device rotates, liquid on the to-be-spin-dried object is separated through centrifugal force, and meanwhile it is guaranteed that the to-be-spin-dried object is not thrown out and damaged.

Description

Technical Field

[0001] The present application relates to the technical field of 3D printing product equipment, and in particular to a spin dryer for 3D printed products. Background Art

[0002] With the development of science and technology, more and more products can be produced through 3D printing technology. There will be a lot of resin liquid left on the 3D products printed by 3D printers using photosensitive resin. The products need to be removed from the printing platform after the residual resin liquid on the products has been drained. In order to save costs, many manufacturers leave the 3D products to stand and wait for them to dry naturally, which is time-consuming and labor-intensive, and increases production time, and cannot meet the current market's requirements for efficient production. In order to improve work efficiency, centrifugal dryers are currently on the market, but such equipment has a complex structure and a high cost. 3D printed products are dried along a vertical line perpendicular to the printing platform. The straight line direction is printed layer by layer. When drying soft materials to be dried, in order to prevent the centrifugal force generated during the rotation from damaging the materials to be dried, the straight line direction of the materials to be dried needs to be kept consistent with the direction of the centrifugal force. However, when the centrifugal dryer is not rotating to dry, the materials to be dried are not affected by the centrifugal force, but will sag under the influence of gravity, causing the materials to sag and deform. In order to prevent gravity from affecting the materials to be dried, the straight line direction of the materials to be dried needs to be kept consistent with the direction of gravity. During the rotation, the centrifugal force generated will damage the vertically placed materials to be dried, seriously affecting the production efficiency and product success rate. Summary of the Invention

[0003] In order to solve the above technical problems, the purpose of this application is to provide a spin dryer for 3D printed products with a simple structure that ensures product quality and separation efficiency.

[0004] To achieve the above objectives, the present application adopts the following technical solution: a spin dryer for 3D printed products, comprising:

[0005] frame,

[0006] A drying chamber, mounted on the frame to accommodate a plurality of printing platforms for carrying objects to be dried, wherein the drying chamber has a center line extending in an up-down direction in the middle thereof, and the plurality of printing platforms are sequentially distributed along the circumference of the center line;

[0007] a separation device rotatably mounted in the drying chamber about the center line, the separation device comprising a separation frame and a plurality of drying stations sequentially arranged along the circumference of the separation frame, each drying station being configured with at least one connecting hook for loading at least one printing platform, each connecting hook being hinged to the separation frame; and

[0008] The driving device is installed on the lower side of the drying chamber, and the driving device is transmission-connected with the separation frame to drive the separation frame to rotate around the center line.

[0009] In the above technical solution, it is further preferred that the separation frame includes a supporting portion and a mounting portion, the supporting portion is located below the mounting portion and is transmission-connected to the driving device; the mounting portion is installed at the top end of the supporting portion, and the connecting hooks are all connected to the mounting portion.

[0010] In the above technical solution, it is further preferred that the drying chamber includes a barrel bottom and a barrel wall surrounding the upper side of the barrel bottom, the barrel wall is surrounded to form a cylinder with a circular cross-section, the bottom end of the barrel wall is connected to the barrel bottom, and the top end of the barrel wall is located on the upper side of the mounting portion.

[0011] In the above technical solution, it is further preferred that the mounting portion has four side walls, the four side walls are arranged opposite to each other in pairs and form a column with a square cross-section, and the drying station is distributed on the outer side of each side wall.

[0012] In the above technical solution, it is further preferred that the outer surface of each side wall is hinged to a connecting hook, and each connecting hook is constructed to be able to swing around an axis relative to the separation frame, and the axis is parallel to the side wall and perpendicular to the center line.

[0013] In the above technical solution, it is further preferred that each of the connecting hooks includes a first part and a second part, the first part includes a hinged end hinged to the side wall and a first connecting end connected to the second part, the second part includes a second connecting end connected to the first connecting end and a hook-shaped end located on the upper side of the second connecting end, the second part extends upward from the first connecting end relative to the first part, and forms an angle with the first part, and the hook-shaped end bends toward the first part.

[0014] In the above technical solution, it is further preferred that the connecting hook is an integrally formed part.

[0015] In the above technical solution, it is further preferred that the angle is 30°-60°.

[0016] Compared with the prior art, this application achieves the following beneficial effects:

[0017] The present application uses a connecting hook that is rotatable relative to the separation frame to hook the printing platform carrying the material to be dried when the separation device rotates; while using centrifugal force to separate the liquid on the material to be dried, it ensures that the material to be dried is not thrown out and is not damaged. The structure is simple and effectively guarantees separation efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a spin dryer provided in an embodiment of the present application;

[0019] Figure 2 for Figure 1 A top view of the dryer in FIG.

[0020] Figure 3 for Figure 1 A main view of the dryer in FIG.

[0021] Figure 4 for Figure 1 A schematic diagram of a three-dimensional structure in which the separation device is connected to the driving device;

[0022] Figure 5 for Figure 4 A schematic diagram of the three-dimensional structure of the separation device;

[0023] Figure 6 for Figure 5 A front view of the separation device in FIG.

[0024] Figure 7 for Figure 5 A schematic diagram of the position of the connecting hook in the separation device when the separation device is not rotating and loading the printing platform carrying the object to be dried;

[0025] Figure 8 for Figure 5 Schematic diagram of the position of the connecting hook in the separation device when the separation device rotates to load the printing platform carrying the object to be dried.

[0026] Among them: 100, dryer; 10, frame; 20, drying chamber; 1, drum bottom; 2, drum wall; 30, separation device; 3, separation frame; 31, support part; 32, mounting part; 321, side wall; 4, connecting hook; 41, first part; 411, hinged end; 412, first connecting end; 42, second part; 421, second connecting end; 422, hook-shaped end; 40, driving device; 5, driving motor; 6, coupling; 50, object to be dried; 60, printing platform. DETAILED DESCRIPTION

[0027] In order to describe the technical content, structural features, achieved purposes and effects of the application in detail, the technical solutions in the embodiments of the application will be described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all of the embodiments. In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments may be different, but are not necessarily exclusive. For example, without departing from the inventive concept, the specific shape, structure and characteristics of the exemplary embodiment may be used or implemented in another exemplary embodiment.

[0028] An embodiment of the present application provides a spin dryer for 3D printed products, which is used to quickly dry liquids such as resin on 3D printed products, thereby facilitating the drying of 3D printed products.

[0029] like Figure 1-3 As shown, the dryer 100 includes a frame 10, a drying chamber 20, a separator 30, and a drive unit 40. The frame 10 is supported on the ground. The drying chamber 20 is mounted on the frame 10 and is used to load multiple printing platforms 60 carrying objects to be dried 50 and collect liquid separated from the objects to be dried 50. The separator 30 is rotatably mounted within the drying chamber 20, and multiple printing platforms 60 are detachably mounted around the separator 30. The drive unit 40 is mounted below the drying chamber 20 and is transmission-connected to the separator 30 within the drying chamber 20 to drive the separator 30 to rotate. The multiple objects to be dried 50 around the separator 30 rotate with the separator 30. Under the action of centrifugation, the liquid on the objects to be dried 50 is removed and collected in the drying chamber 20. The objects to be dried 50 are separated from the liquid on the surface, thereby achieving the purpose of drying.

[0030] The drying chamber 20 is cylindrical and has a centerline X1 extending vertically. It comprises a bottom 1 and a wall 2. The bottom 1 is flatly supported on the frame 10. The wall 2 forms a cylindrical shape with a circular cross-section on the upper surface of the bottom 1, centered about the centerline X1. The bottom end of the wall 2 is welded to the bottom 1 to prevent leakage of liquid collected within the drying chamber 20. A plurality of objects to be dried 50 are accommodated within the drying chamber 20 and are distributed sequentially along the circumference of the centerline X1.

[0031] like Figure 4-6As shown, the separation device 30 is rotatably mounted about a centerline X1 within the drying chamber 20. Multiple printing platforms 60 are mounted on the separation device 30. As the separation device 30 rotates, liquid is separated from the surface of the material 50 being carried within the drying chamber 20. The separation device 30 includes a separation frame 3 and multiple drying stations arranged sequentially along the circumference of the separation frame 3. Each drying station is equipped with a connecting hook 4 for mounting a printing platform 60. Each connecting hook 4 is hingedly connected to the separation frame 3.

[0032] The separation frame 3 includes a support portion 31 and a mounting portion 32 disposed on top of the support portion 31. Multiple connecting hooks 4 are connected to the mounting portion 32. The support portion 31 supports the mounting portion 32 and the printing platform 60 carrying the material to be dried 50, which is loaded onto each connecting hook 4 on the mounting portion 32. This prevents the material to be dried 50 from contacting the bottom 1 of the drum. The bottom of the support portion 31 is in driving connection with the drive device 40 below the drying chamber 20 and rotates about the centerline X1 under the drive device 40.

[0033] The driving device 40 includes a driving motor 5 and a coupling 6 mounted on the frame 10. The coupling 6 is connected between the separation frame 3 and the driving motor 5 to transmit the power output by the driving motor 5 to the separation frame 3 so that the separation frame 3 can rotate.

[0034] like Figure 5 、 6 As shown, in the embodiment of the present application, the mounting portion 32 has four side walls 321, which are arranged in pairs to form a column with a square cross-section. A spin-drying station is located outside each side wall 321. A connecting hook 4 is hingedly connected to the outer surface of each side wall 321. Each connecting hook 4 is configured to swing relative to the separation frame 3 about an axis X2, which is parallel to the side wall 321 and perpendicular to the center line X1.

[0035] Each connecting hook 4 includes a first portion 41 and a second portion 42. The first portion 41 includes a hinged end 411 hingedly connected to the side wall 321 and a first connecting end 412 connected to the second portion 42. The second portion 42 includes a second connecting end 421 connected to the first connecting end 412 and a hook-shaped end 422 located above the second connecting end 421. The second portion 42 extends upward from the first connecting end 412 at an angle relative to the first portion 41, forming an angle α with the first portion 41 that is 30°-60°. The hook-shaped end 422 bends toward the first portion 41. In this embodiment of the present application, the connecting hook 4 is a one-piece molded component.

[0036] like Figure 7 、 8As shown, when the separation device 30 is not rotating, the printing platform 60 loaded with the material to be dried 50 is hung on the connecting hook 4. At this time, the connecting hook 4 and the material to be dried 50 hang downward under the action of gravity, effectively protecting the soft material to be dried 50 and preventing the material to be dried 50 from being deformed by gravity. During the rotation of the separation device 30, the material to be dried 50 will be thrown outward under the action of centrifugal force. The connecting hook 4 will swing upward with the material to be dried 50 and swing until the printing direction of the material to be dried 50 is consistent with the direction of the centrifugal force, preventing the centrifugal force from damaging the material to be dried 50. At the same time, the second portion 42 and the hook-shaped end portion 422 on the second portion 42 will hook the material to be dried 50, limiting the movement of the material to be dried 50 in the radial direction of the center line X1, and preventing the material to be dried 50 from being thrown outward under the action of centrifugal force. The connecting hook 4, which is rotatable relative to the mounting portion 32, allows the objects 50 to swing up and down, ensuring that the objects 50 are not deformed by gravity and centrifugal forces when the separation device 30 is not rotating or rotating, thereby effectively improving the yield rate. In addition, the top portion of the tubular wall 2 is located above the mounting portion 32, and the tubular wall 2 blocks liquid from being spun off from the objects 50, preventing the liquid from being spun out of the drying chamber 20 and contaminating the surrounding environment.

[0037] The present application uses a connecting hook that is rotatable relative to the separation frame to hook the printing platform carrying the material to be dried when the separation device rotates; while using centrifugal force to separate the liquid on the material to be dried, it ensures that the material to be dried is not thrown out and is not damaged. The structure is simple and effectively guarantees separation efficiency and product quality.

[0038] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. The scope of protection claimed in the present application is defined by the appended claims, the description and their equivalents.

Claims

1. A drying machine for 3D printed products, characterized in that: include: frame, A drying chamber, mounted on the frame to accommodate a plurality of printing platforms for carrying objects to be dried, wherein the drying chamber has a center line extending in an up-down direction in the middle thereof, and the plurality of printing platforms are sequentially distributed along the circumference of the center line; a separation device rotatably mounted in the drying chamber about the center line, the separation device comprising a separation frame and a plurality of drying stations sequentially arranged along the circumference of the separation frame, each drying station being configured with at least one connecting hook for loading at least one printing platform, each connecting hook being hinged to the separation frame; and The driving device is installed on the lower side of the drying chamber, and the driving device is connected to the separation frame in a transmission manner to drive the separation frame to rotate around the center line.

2. The drying machine according to claim 1, characterized in that The separation frame includes a supporting portion and a mounting portion. The supporting portion is located below the mounting portion and is transmission-connected to the driving device. The mounting portion is installed at the top end of the supporting portion, and the connecting hooks are all connected to the mounting portion.

3. The drying machine according to claim 2, characterized in that: The drying chamber includes a barrel bottom and a barrel wall surrounding the upper side of the barrel bottom. The barrel wall forms a cylinder with a circular cross-section. The bottom end of the barrel wall is connected to the barrel bottom, and the top end of the barrel wall is located on the upper side of the mounting portion.

4. The drying machine according to claim 2, characterized in that: The mounting portion has four side walls, which are arranged opposite to each other in pairs and form a column with a square cross-section. The drying station is distributed on the outer side of each side wall.

5. The drying machine according to claim 4, characterized in that: The outer surface of each side wall is hinged with a connecting hook, and each connecting hook is configured to swing relative to the separation frame around an axis, wherein the axis is parallel to the side wall and perpendicular to the center line.

6. The drying machine according to claim 5, characterized in that: Each of the connecting hooks includes a first part and a second part, the first part includes a hinged end hinged to the side wall and a first connecting end connected to the second part, the second part includes a second connecting end connected to the first connecting end and a hook-shaped end located on the upper side of the second connecting end, the second part extends upward from the first connecting end relative to the first part, and forms an angle with the first part, and the hook-shaped end is bent toward the first part.

7. The drying machine according to claim 6, characterized in that: The connecting hook is an integrally formed part.

8. The drying machine according to claim 6, characterized in that: The angle is 30°-60°.

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