Tray rack of three-dimensional printer and three-dimensional printer

Abstract

The utility model discloses a material tray frame of a three-dimensional printer and the three-dimensional printer, the material tray frame comprises a material tray frame body, the first end of the material tray frame body is used for being connected with a rack of the three-dimensional printer, and the second end of the material tray frame body is used for bearing a material tray; one end of the connecting part is connected with the third end of the tray rack body; the material line conveying piece is provided with a connecting end and a first through hole, the material line conveying piece is rotationally connected with the other end of the connecting part through the connecting end, and a material line in the material disc penetrates through the first through hole to be connected to a printing head of the three-dimensional printer. The resistance of a stock line entering a printing head of the three-dimensional printer is reduced by changing the structure of the tray frame.

Description

Technical Field

[0001] The present application relates to the technical field of three-dimensional printing, and in particular to a material tray rack of a three-dimensional printer and a three-dimensional printer. Background Art

[0002] In a three-dimensional printer (also called a 3D printer), the process of the material line entering the print head from the material tray will affect the printing effect of the three-dimensional printer. Figure 1 As shown, the material tray rack places the material tray by setting a cross bar of a certain diameter. At this time, the resistance of the material line entering the print head will be relatively large, which is easy to affect the normal operation of the 3D printer. Utility Model Content

[0003] The present application provides a material tray rack of a 3D printer and a 3D printer, which reduces the resistance of a material line entering a print head of the 3D printer by changing the structure of the material tray rack.

[0004] In a first aspect, the present application discloses a material tray rack of a three-dimensional printer, the material tray rack comprising:

[0005] A material tray rack body, wherein a first end of the material tray rack body is used to connect to a frame of the 3D printer, and a second end of the material tray rack body is used to carry a material tray;

[0006] A connecting component, one end of which is connected to the third end of the tray frame body;

[0007] A material line transmission member includes a connecting end and a first through hole, wherein the material line transmission member is rotatably connected to the other end of the connecting component through the connecting end, and the material line in the material tray passes through the first through hole to be connected to the print head of the 3D printer.

[0008] In the present application, the material line transmission member is provided with a first through hole to allow the material line to pass through. At this time, the first through hole has a guiding effect on the material line, which can reduce the resistance of the material line entering the print head of the 3D printer. In addition, the connection end of the material line transmission member and the connecting component are rotatably connected, that is, the material line transmission member can rotate freely relative to the connecting component, so that the posture of the material line transmission member can be adjusted with multiple degrees of freedom, that is, the material line transmission member can adaptively adjust the direction of the material line entering the print head, further reducing the resistance of the material line entering the print head, and can also prevent the material line from escaping from the material tray when the print head position changes, thereby improving the printing quality of the 3D printer and having high reliability.

[0009] In combination with the first aspect, in a first possible implementation, a ball cavity is provided at the other end of the connecting component, and the connecting end is a ball head corresponding to the ball cavity, wherein the ball head is connected to the inner concave surface of the ball cavity. In the present application, a ball head connection is adopted to realize the rotation connection between the material line transmission component and the connecting component, and the material line transmission component can realize six degrees of freedom: rotation around the X axis (roll), rotation around the Y axis (pitch), and rotation around the Z axis (yaw), so that the angle of the material line entering the print head can be adjusted in a wider range.

[0010] In combination with the first aspect or any one of the above possible implementations of the first aspect, in a second possible implementation, the other end of the connecting component is a ball head; the inner surface of the connecting end is a ball cavity corresponding to the ball head; wherein the ball head is connected to the inner concave surface of the ball cavity. In the present application, a ball head connection is used to realize the rotational connection between the material line transmission component and the connecting component. The material line transmission component can realize six degrees of freedom: rotation around the X axis (roll), forward and backward rotation around the Y axis (pitch), and left and right rotation around the Z axis (yaw), so that the angle of the material line entering the print head can be adjusted in a wider range.

[0011] In combination with the first aspect or any one of the above-mentioned possible implementations of the first aspect, in a third possible implementation, the connection end is provided with a groove in the direction of the material line transmission. In the present application, by providing a groove in the connection end, the angle of rotation of the material line transmission member around the Y axis can be changed, that is, the pitch angle of the material line transmission member can be changed. Exemplarily, when a material tray is carried on the material tray rack body, if there are more material lines on the material tray, the groove can allow the material line transmission member to increase the pitch angle, that is, increase the angle between the material line transmission member and the frame of the three-dimensional printer to reduce the resistance of the material line entering the print head; if there are fewer material lines on the material tray, the groove can allow the material line transmission member to reduce the pitch angle, that is, reduce the angle between the material line transmission member and the frame of the three-dimensional printer. The implementation of the present application can make the material tray rack adapt to material trays with different material line thicknesses, and has good adaptability.

[0012] In combination with the first aspect or any one of the above possible implementations of the first aspect, in a fourth possible implementation, the connection end is provided with a protrusion in a direction perpendicular to the material line transmission. In the present application, by providing a protrusion in the spherical cavity to limit the rotation of the material line transmission member around the X-axis, the material line can be prevented from tilting, and the appearance is high.

[0013] In combination with the first aspect or any one of the above possible implementations of the first aspect, in a fifth possible implementation, the material line transmission member and the material tray are located on the same side of the material tray rack body. In the present application, the material line transmission member and the material tray are located on the same side, so that the material tray rack has a smaller volume and a more compact structure. In addition, the material line transmission member and the material tray are located on the same side, which can shorten the feeding distance of the material line and make the feeding distance of the material line smoother.

[0014] In combination with the first aspect or any one of the possible implementations of the first aspect, in a sixth possible implementation, the material line transmission member is located above the material tray. The above of the material tray is the side away from the print head when the material tray is set on the material tray rack. In the present application, the material line transmission member is located above the material tray, and the wire material can be in a taut state and is not easy to relax, thereby avoiding entanglement of the wire material. In addition, the space occupied by the material tray rack can be reduced, and the space utilization rate is high.

[0015] In combination with the first aspect or any one of the above possible implementations of the first aspect, in a seventh possible implementation, a buckle structure is provided at the first end of the material tray rack body, and the first end of the material tray rack body is mounted on the frame of the 3D printer through the buckle structure. In the present application, the material tray rack body can be quickly and conveniently mounted on the frame of the 3D printer through the buckle structure, so that the material tray rack is stably connected to the frame of the 3D printer, thereby ensuring the stability of the material line feeding.

[0016] In combination with the first aspect or any one of the above possible implementations of the first aspect, in an eighth possible implementation, the material tray rack further includes a limiting assembly, and the material tray is arranged between the limiting assembly and the second end of the material tray rack body. In the present application, the material tray is fixed to the material tray rack body by the limiting assembly to prevent the material tray from falling off the material tray rack during printing.

[0017] In combination with the first aspect or any one of the above possible implementations of the first aspect, in a ninth possible implementation, a non-slip pad is provided at the first end of the material tray rack body, and the first end of the material tray rack body is connected to the frame of the 3D printer via the non-slip pad. In the present application, the friction between the material tray rack body and the frame of the 3D printer is increased by the non-slip pad, thereby better limiting the relative movement between the material tray rack body and the frame of the 3D printer.

[0018] In combination with the first aspect or any possible implementation of the first aspect, in a tenth possible implementation, the connection end of the material line transmission member and the first through hole are not in the same straight line direction. Implementation of the present application can reduce the interference of the rotation of the material line transmission member on the material line feeding.

[0019] In a second aspect, the present application discloses a three-dimensional printer, comprising a frame and a material tray rack described in combination with the first aspect or in combination with any one of the above possible implementations of the first aspect, wherein the material tray rack is connected to the frame of the three-dimensional printer.

[0020] It should be understood that the implementation and beneficial effects of the above-mentioned aspects of the present application can be referenced to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a material tray rack provided by the prior art;

[0022] Figure 2 A schematic diagram of the structure of a three-dimensional printer provided in an embodiment of the present application;

[0023] Figure 3 A schematic structural diagram of a tray rack for carrying trays provided in an embodiment of the present application;

[0024] Figure 4 A schematic diagram of a structure of a tray rack without a tray provided in an embodiment of the present application;

[0025] Figure 5 for Figure 4 An exploded view of the tray rack shown in FIG.

[0026] Figure 6 for Figure 3 A top view of the tray rack shown in FIG.

[0027] Figure 7 for Figure 3 A left side view of the tray rack shown in FIG.

[0028] Figure 8 for Figure 3 Right side view of the tray rack shown in . DETAILED DESCRIPTION

[0029] The implementation of the technical solution of the present application is further described in detail below in conjunction with the accompanying drawings.

[0030] See also Figure 2 , Figure 2 A schematic diagram of the structure of a three-dimensional printer provided in an embodiment of the present application. Figure 2 As shown, the 3D printer 20 includes a frame 201 and a material tray frame 202 .

[0031] The material tray rack 202 is connected to the frame 201 of the three-dimensional printer 20. Exemplarily, the material tray rack 202 is detachably connected to the frame 201, or the material tray rack 202 is non-detachably connected to the frame 201. The material tray rack 202 is used to place the material tray 21, and the material wire 22 is wound around the material tray 21.

[0032] The three-dimensional printer 20 also includes a print head 203, a printing platform 204, and a motion component 205. The material line 22 can pass through the first through hole provided in the material tray frame 202 and enter the print head 203. The print head 203 includes an extrusion component and a hot end. The extrusion component conveys the material line 22 to the hot end. The hot end has a heating function. The hot end heats the material line 22 to a molten state and extrude the molten material line 22 onto the printing platform 204.

[0033] The motion component 205 is connected to at least one of the print head 203 and the printing platform 204. During the motion of the motion component 205, at least one of the print head 203 and the printing platform 204 can be driven, so that a relative displacement occurs between the print head 203 and the printing platform 204. Exemplarily, the motion component may include a synchronous belt, a lead screw or a guide rail, etc., and the present application does not limit the specific form of the motion component.

[0034] Exemplarily, the hot end includes a heat sink fin, a nozzle, and a throat located between the heat sink fin and the nozzle. The material line passes through the heat sink fin, the throat, and the nozzle in sequence. Specifically, the material line is heated to a molten state at the nozzle, and the nozzle extrude the molten material line onto the printing platform 204. When the moving component 205 moves along the printing path, the nozzle extrude the molten material line layer by layer at different positions of the printing platform 204, thereby printing a three-dimensional object.

[0035] The extrusion assembly includes a driving wheel and a driven wheel arranged opposite to the driving wheel, and the material line passes between the driving wheel and the driven wheel. The driving wheel rotates in a first direction to drive the material line to be transported to the hot end; the driving wheel rotates in a second direction opposite to the first direction to drive the material line back to the material tray 21.

[0036] Figure 2 Taking a 3D printer with a gantry structure as an example, in some feasible implementations, the structure of the 3D printer may be a Core xy 3D printing structure, a cantilever structure, or a Core xz 3D printing structure, etc. This application does not limit the specific structure of the 3D printer.

[0037] The present application reduces the resistance of the material line entering the print head of the 3D printer by changing the structure of the material tray rack.

[0038] Combine the following Figures 3 to 8 right Figure 2 The structure of the material tray rack 202 shown in FIG. 2 is introduced in detail.

[0039] See also Figures 3 to 8 , Figure 3 A schematic diagram of a structure of a tray rack for carrying a tray provided in an embodiment of the present application, Figure 4 A schematic diagram of a structure of a tray rack without a tray provided in an embodiment of the present application, Figure 5 for Figure 4 An exploded view of the tray rack is shown in FIG. Figure 6 for Figure 3 A top view of the tray rack shown in FIG. Figure 7 for Figure 3 The left side view of the tray rack shown in FIG. Figure 8 for Figure 3 Right side view of the tray rack shown in .

[0040] like Figure 3 As shown, the material tray rack 202 includes a material tray rack body 2021. The first end 20211 of the material tray rack body 2021 is connected to the frame 201 of the 3D printer. Exemplarily, the material tray rack body 2021 can be fixedly connected to the frame 201 by a non-detachable method such as gluing. Alternatively, the material tray rack body 2021 can be fixedly connected to the frame 201 by a detachable method such as magnetic attraction or snap fasteners.

[0041] In some feasible implementations, a buckle structure 2025 is provided at the first end of the material tray rack body 2021, and the first end 20211 of the material tray rack body 2021 is mounted on the frame 201 through the buckle structure 2025. In the present application, the material tray rack body can be quickly and conveniently mounted on the frame of the 3D printer through the buckle structure, so that the material tray rack is stably connected to the frame of the 3D printer, ensuring the stability of the material line feeding.

[0042] Optionally, in some feasible implementations, the first end 20211 of the tray rack body 2021 is provided with an anti-skid pad 2027, and the first end 20211 of the tray rack body 2021 can be connected to the frame 201 through the anti-skid pad 2027. In the present application, the friction between the tray rack body and the frame of the 3D printer is increased by the anti-skid pad, thereby better limiting the relative movement between the tray rack body and the frame of the 3D printer.

[0043] The second end 20212 of the tray rack body 2021 is used to carry the tray 21. For example, Figure 4 As shown, the second end 20212 of the tray rack body 2021 can extend along the length direction of the frame 201, wherein the second end 20212 of the tray rack body 2021 can be extended from one side. Optionally, the second end of the tray rack body can also be extended from both sides. When extended from one side, the second end 20212 of the tray rack body 2021 carries a single tray 21; when extended from both sides, the second end 20212 of the tray rack body 2021 carries two trays 21.

[0044] In some feasible embodiments, the material tray rack further includes a limiting assembly 2026, and the material tray 21 is arranged between the limiting assembly 2026 and the second end 20212 of the material tray rack body 2021. Exemplarily, the limiting assembly 2026 can be manufactured integrally with the material tray rack body 2021. Alternatively, the limiting assembly 2026 can also be an independent part, which is arranged on one side of the second end 20212 of the material tray rack body 2021. In the present application, the material tray is fixed to the material tray rack body by the limiting assembly to prevent the material tray from moving during the printing process.

[0045] The third end 20213 of the tray rack body 2021 is connected to one end of the connecting component 2022. Exemplarily, the connecting component 2022 may be a screw, and in this case, the third end 20213 of the tray rack body 2021 is threadedly connected to the connecting component. Alternatively, the third end of the tray rack body and the connecting component may be connected by a ferrule, glued, etc. This application does not limit the connection method between the tray rack body and the connecting component.

[0046] In some feasible embodiments, the material tray frame 202 may further include an abutment member 2024, which is disposed between the third end 20213 of the material tray frame body 2021 and the material line transmission member 2023. The abutment member 2024 may provide a smooth rotating surface for the material line transmission member 2023, and the abutment member 2024 may extend the first through hole 20231 of the material line transmission member 2023 to above the center of the material tray 21, further reducing the feeding path of the material line.

[0047] Optionally, the material line transmission member and the material tray can be located on different sides of the material tray rack body. Figures 2 to 8 The described material line transmission member 2023 and the material tray 21 are located on the same side of the material tray frame body 2021. In the present application, the material line transmission member and the material tray are located on the same side, so that the material tray frame is smaller and more compact. In addition, the material line transmission member and the material tray are located on the same side, which can shorten the feeding distance of the material line and make the feeding distance of the material line smoother.

[0048] Furthermore, the material line transmission member 2023 is located above the material tray 21. The upper side of the material tray 21 is the side away from the print head when the material tray 21 is set on the material tray frame 202, that is, the material line transmission member 2023 is located in the positive direction of the Z axis of the material tray. In the present application, the material line transmission member is located above the material tray, and the wire material can be in a taut state and is not easy to relax, thereby avoiding the entanglement of the wire material. In addition, the space occupied by the material tray frame can be reduced, and the space utilization rate is high.

[0049] The material line transmission member 2023 includes a connection end 20232 and a first through hole 20231, and the connection end 20232 is rotatably connected to the other end of the connection member 2022. Optionally, the connection end 20232 and the first through hole 20231 are not in the same straight line direction to reduce the interference of the rotation of the material line transmission member on the material line feeding. Exemplarily, the material line transmission member 2023 is provided with the connection end 20232 along the Y-axis direction, and the material line transmission member 2023 is provided with the first through hole 20231 along the X-axis direction, then the setting position of the connection end 20232 is perpendicular to the opening direction of the first through hole 20231.

[0050] In some feasible embodiments, the other end of the connecting component 2022 is a ball head. For example, the connecting component 2022 can be a ball head screw, or the end of a straight rod is set as a ball head. At this time, the connecting end 20232 of the material line transmission member 2023 is a ball cavity corresponding to the ball head, and the ball head is connected to the inner concave surface of the ball cavity. In the present application, a ball head connection is used to realize the rotational connection between the material line transmission member and the connecting component. The material line transmission member can realize six degrees of freedom, including rotation around the X-axis (roll), rotation around the Y-axis (pitch), and rotation around the Z-axis (yaw), so that the angle of the material line entering the print head can be adjusted in a wider range.

[0051] Optionally, in some feasible implementations, the other end of the connecting component is provided with a ball cavity, the connecting end is a ball head corresponding to the ball cavity, and the ball head is connected to the inner concave surface of the ball cavity. The implementation of the present application can also realize six degrees of freedom, namely, rotation around the X axis (roll), rotation around the Y axis (pitch), and rotation around the Z axis (yaw), so that the angle of the material line entering the print head can be adjusted in a wider range.

[0052] In some feasible embodiments, the connection end 20232 is provided with a groove in the direction of material line transmission. That is, the connection end 20232 is provided with a groove in the X-axis direction. Exemplarily, the connection end 20232 may be provided with grooves on both sides of the X-axis direction. In the present application, by providing a groove in the connection end 20232, the angle of rotation of the material line transmission member 2023 around the Y-axis can be changed, that is, the pitch angle of the material line transmission member 2023 can be changed. Exemplarily, when the material tray 21 is carried on the material tray frame body 2021, if there are more material lines 22 on the material tray 21, the groove can allow the material line transmission member 2023 to increase the pitch angle, that is, increase the angle between the material line transmission member 2023 and the frame of the 3D printer, so as to reduce the resistance of the material line 22 entering the print head; if there are fewer material lines 22 on the material tray 21, the groove can allow the material line transmission member 2023 to reduce the pitch angle, that is, reduce the angle between the material line transmission member 2023 and the frame of the 3D printer. By implementing the present application, the material tray rack can adapt to material trays with different material line thicknesses, and has good adaptability.

[0053] In some feasible embodiments, the connection end 20232 is provided with a protrusion in the direction perpendicular to the material line transmission, that is, the connection end 20232 is provided with a protrusion in the Z-axis direction. The protrusion can limit the rotation of the material line transmission component 2023 around the X-axis to prevent the material line from tilting.

[0054] The material line 21 in the material tray 22 passes through the first through hole 20231 to connect to the print head of the 3D printer. In the present application, the material line transmission member is provided with a first through hole to allow the material line to pass through. At this time, the first through hole has a guiding effect on the material line, which can reduce the resistance of the material line entering the print head of the 3D printer. In addition, the connection end of the material line transmission member and the connecting component are rotatably connected, that is, the material line transmission member can rotate freely relative to the connecting component, so that the posture of the material line transmission member can be adjusted with multiple degrees of freedom, that is, the material line transmission member can adaptively adjust the direction of the material line entering the print head, further reducing the resistance of the material line entering the print head, and can also prevent the material line from escaping from the material tray when the position of the print head changes, thereby improving the printing quality of the 3D printer and having high reliability.

[0055] In some feasible implementations, the material line transmission component 2023 is made of Teflon material. The smoothness of the Teflon material can reduce the resistance of the material line when passing through the material line transmission component.

[0056] In the present application, "at least one" means one or more. For example, at least one of a, b and c can mean: a, b, c, a and b, a and c, b and c, a and b and c, where a, b, c can be single or multiple.

[0057] It should be noted that the above terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0058] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A material tray rack for a 3D printer, characterized in that: The tray frame comprises: A material tray rack body, wherein a first end of the material tray rack body is used to connect to a frame of the 3D printer, and a second end of the material tray rack body is used to carry a material tray; A connecting component, one end of which is connected to the third end of the tray rack body; A material line transmission member, wherein the material line transmission member is provided with a connecting end and a first through hole; wherein the material line transmission member is rotatably connected to the other end of the connecting member through the connecting end, and the material line in the material tray passes through the first through hole and is connected to the print head of the 3D printer.

2. The tray rack according to claim 1, characterized in that: The other end of the connecting component is provided with a ball cavity, and the connecting end is a ball head corresponding to the ball cavity; wherein the ball head is connected to the inner concave surface of the ball cavity.

3. The tray rack according to claim 1, characterized in that: The other end of the connecting component is a ball head; the inner surface of the connecting end is a ball cavity corresponding to the ball head; wherein the ball head is connected to the inner concave surface of the ball cavity.

4. The tray rack according to claim 2 or 3, characterized in that: The connecting end is provided with a groove along the transmission direction of the material line.

5. The tray rack according to claim 4, characterized in that: The connecting end is provided with a protrusion in a direction perpendicular to the material line transmission.

6. The tray rack according to any one of claims 1 to 3, characterized in that: The material line transmission member and the material tray are located on the same side of the material tray frame body.

7. The tray rack according to any one of claims 1 to 3, characterized in that: The material line transmission component is located above the material tray.

8. The tray rack according to any one of claims 1 to 3, characterized in that: A buckle structure is provided at the first end of the material tray frame body, and the first end of the material tray frame body is mounted on the frame of the 3D printer through the buckle structure.

9. The tray rack according to any one of claims 1 to 3, characterized in that: The material tray rack also includes a limiting component, and the material tray is arranged between the limiting component and the second end of the material tray rack body.

10. The tray rack according to any one of claims 1 to 3, characterized in that: The first end of the tray rack body is provided with an anti-slip pad; The first end of the material tray frame body is connected to the frame of the 3D printer through the anti-slip pad.

11. The tray rack according to any one of claims 1 to 3, characterized in that: The connection end of the material line transmission member and the first through hole are not in the same straight line direction.

12. A three-dimensional printer, characterized in that: The three-dimensional printer comprises a frame and a material tray rack as described in any one of claims 1 to 11, and the material tray rack is connected to the frame of the three-dimensional printer.

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