A 3D printer rack structure

Abstract

The application relates to the field of 3D printing technology and discloses a 3D printer rack structure which comprises a fourth plate, a first spline cylinder, a cylinder type piece, a first spline shaft, a conical table, a second spline shaft, a support plate, a roller and a spring. When in use, under the driving of external force, the first spline shaft slides towards the direction of approaching the plurality of rollers relative to the first spline cylinder, then under the guiding and supporting of the plurality of second spline shafts, the plurality of rollers can be dispersed from each other, so that the plurality of support plates abut against the inner wall of the central hole of the material disc, and the installation of the material disc is completed. After the consumables are consumed, under the driving of external force, the first spline shaft slides away from the plurality of rollers relative to the first spline cylinder, then under the elastic force of the plurality of springs and the guiding and supporting of the plurality of second spline shafts, the plurality of support plates can be close to each other, so that the material disc can be disassembled. Therefore, only by driving the first spline shaft to slide, the installation and disassembly of the material disc can be completed, and the 3D printer rack structure has the advantages of simple operation.

Description

Technical Field

[0001] This application relates to the field of 3D printing technology, and more particularly to a material rack structure for a 3D printer. Background Technology

[0002] A related technology (publication number: CN220262022U) discloses a material tray structure for a 3D printer, including a linear motor. A mounting plate is slidably connected to the outer end surface of the linear motor. A connecting plate is provided on the lower end surface of the mounting plate, and a consumable storage component is provided on the outer surface of the middle part of the connecting plate. The consumable storage component includes an inner rod, a back plate is provided on the outer end surface of the inner rod, a sleeve is fitted on the outer side of the inner rod, a compression spring is provided inside the inner rod, and a stop is provided on the outer surface of the compression spring.

[0003] In the process of implementing the technical solution disclosed herein, at least the following problems were found in the related technologies:

[0004] The 3D printer uses a filament tray structure. After the filament is used up, pressing down on multiple stops overcomes the spring force of several springs, allowing the tray to retract into the inner rod and remove the sleeve for filament replacement. However, this replacement process requires pressing multiple stops simultaneously, making it rather cumbersome. Furthermore, during filament feeding, the sliding friction between the sleeve and the inner rod must be overcome, leading to feeding difficulties.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] To provide a basic understanding of some aspects of the disclosed technical solutions, a brief summary is given below. This summary is not a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these technical solutions, but rather serves as an introduction to the detailed explanations that follow.

[0007] This disclosure provides a 3D printer material rack structure to solve the problems mentioned in the background art.

[0008] In some technical solutions, the 3D printer material rack structure includes: a template plate, the horizontal wall of which is connected to the frame profile of the 3D printer; a first splined cylinder, rotatably inserted through the vertical wall of the template plate; a cylindrical component, mounted on the outer wall of the first splined cylinder and coaxially distributed with the first splined cylinder; a first splined shaft, slidably inserted through the first splined cylinder; a conical platform, mounted on the first splined shaft and located inside the cylindrical component; and a second splined shaft, extending axially along the cylindrical component. A first spline shaft is rotatably inserted through the cylindrical component and evenly distributed around the conical platform; a support plate is respectively mounted on a plurality of second spline shafts and is located inside the cylindrical component; rollers are respectively mounted on a plurality of support plates and abut against the side of the conical platform; springs are respectively fitted on a plurality of second spline shafts and are respectively located between the cylindrical component and the plurality of support plates; wherein, the first spline shaft is controllably slidable relative to the first spline cylinder to make the plurality of support plates move closer together or disperse.

[0009] Optionally, it further includes: a movable plate, rotatably mounted on the first spline shaft and located outside the cylindrical member; a guide shaft, slidably passing through the movable plate and mounted on the vertical wall of the cylindrical member; and a screw, threadedly connected to the movable plate and rotatably mounted on the vertical wall of the cylindrical member; wherein the axis of the guide shaft and the axis of the screw are both parallel to the axis of the first spline cylinder.

[0010] Optionally, it further includes: a first bearing housing, mounted on the movable plate and sleeved on the first splined shaft; and a first bearing, mounted between the first bearing housing and the first splined shaft.

[0011] Optionally, it further includes: a second bearing housing, installed on the vertical wall of the L-shaped plate and sleeved on the screw; and a second bearing, installed between the second bearing housing and the screw.

[0012] Optionally, it also includes: a linear bearing, fitted onto the guide shaft and mounted on the movable plate.

[0013] Optionally, it further includes: a first fixing ring, installed on the guide shaft along the axial direction of the guide shaft, and the movable plate located between the first fixing ring and the vertical wall of the L-shaped plate.

[0014] Optionally, it also includes a knob, mounted on the screw, for gripping.

[0015] Optionally, it further includes: a third bearing housing, installed on the vertical wall of the L-shaped plate and sleeved on the first splined cylinder; and a third bearing, installed between the third bearing housing and the first splined cylinder.

[0016] Optionally, it further includes: a second spline sleeve, which is respectively fitted onto a plurality of second spline shafts and is mounted on the outer wall of the cylindrical component.

[0017] Optionally, it further includes: a second retaining ring, which is respectively installed on a plurality of the second spline shafts and is located outside the cylindrical member.

[0018] The 3D printer material rack structure provided in this disclosure can achieve the following technical effects:

[0019] This disclosure provides a 3D printer material rack structure, including a template plate, a first splined cylinder, a cylindrical component, a first splined shaft, a conical platform, a second splined shaft, a support plate, rollers, and springs. The horizontal wall of the template plate is used to connect with the frame profile of the 3D printer, thereby mounting the entire device onto the 3D printer. The first splined cylinder is rotatably inserted through the vertical wall of the template plate and can rotate relative to the template plate. The cylindrical component is mounted on the outer wall of the first splined cylinder and is coaxially distributed with the first splined cylinder, and can rotate under the support of the first splined cylinder. The first splined shaft is slidably inserted through the first splined cylinder, can slide relative to the first splined cylinder, and rotates under the drive of the first splined cylinder. The conical platform is mounted on the first splined shaft and located inside the cylindrical component, and moves under the drive of the first splined shaft. The second spline shafts are rotatably inserted into the cylindrical component along its axial direction and are evenly distributed around the circumference of the conical pedestal. Each second spline shaft can slide relative to the cylindrical component, serving as a guide and support. Support plates are mounted on multiple second spline shafts, all located inside the cylindrical component, and abut against the inner wall of the center hole of the tray. Rollers are mounted on multiple support plates, abutting against the sides of the conical pedestal, and reducing friction to minimize wear between the conical pedestal and the support plates. Springs are fitted onto multiple second spline shafts, located between the cylindrical component and the support plates, providing elastic force for elastic reset. The first spline shaft is controllably slidable relative to the first spline cylinder, allowing the support plates to move closer together or disperse.

[0020] This disclosure provides a 3D printer feed rack structure. Under external force, the first spline shaft slides relative to the first spline cylinder towards the multiple rollers. Guided and supported by multiple second spline shafts, the rollers disperse, allowing multiple support plates to abut against the inner wall of the feed tray's central hole, thus completing the feed tray installation. When the filament is depleted, under external force, the first spline shaft slides away from the multiple rollers. Under the elastic force of multiple springs and the guiding and supporting action of the multiple second spline shafts, the support plates come together, allowing the feed tray to be disassembled. Therefore, the feed tray loading and unloading can be completed simply by driving the first spline shaft to slide, offering the advantage of simple operation.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a cross-sectional view of a 3D printer rack structure provided in an embodiment of this disclosure;

[0024] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0025] Figure 3 yes Figure 1 Enlarged structural diagram at point B;

[0026] Figure 4 yes Figure 1 Enlarged structural diagram at point C;

[0027] Figure 5 This is a side view of a 3D printer rack structure provided in an embodiment of this disclosure.

[0028] Figure label:

[0029] 1: Slotted plate; 2: First splined sleeve; 3: Cylindrical component; 4: First splined shaft; 5: Conical platform; 6: Second splined shaft; 7: Support plate; 8: Roller; 9: Spring; 10: Moving plate; 11: Guide shaft; 12: Screw; 13: First bearing housing; 14: First bearing; 15: Second bearing housing; 16: Second bearing; 17: Linear bearing; 18: First retaining ring; 19: Knob; 20: Third bearing housing; 21: Third bearing; 22: Second splined sleeve; 23: Second retaining ring. Detailed Implementation

[0030] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0031] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0032] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better describing the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this disclosure according to the specific circumstances.

[0033] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0034] Unless otherwise stated, the term "multiple" means two or more.

[0035] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0036] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0038] Combination Figures 1 to 5As shown, this embodiment of the present disclosure provides a 3D printer material rack structure, including a top plate 1, a first splined cylinder 2, a cylindrical component 3, a first splined shaft 4, a conical platform 5, a second splined shaft 6, a support plate 7, rollers 8, and springs 9. The horizontal wall of the top plate 1 is used to connect with the frame profile of the 3D printer, thereby mounting the entire device onto the 3D printer. The first splined cylinder 2 is rotatably inserted through the vertical wall of the top plate 1 and can rotate relative to the top plate 1. The cylindrical component 3 is installed on the outer wall of the first splined cylinder 2 and is coaxially distributed with the first splined cylinder 2, and can rotate under the support of the first splined cylinder 2. The first splined shaft 4 is slidably inserted through the first splined cylinder 2, can slide relative to the first splined cylinder 2, and rotates under the drive of the first splined cylinder 2. The conical platform 5 is installed on the first splined shaft 4 and located inside the cylindrical component 3, and moves under the drive of the first splined shaft 4. The second spline shaft 6 is rotatably inserted through the cylindrical component 3 along its axial direction and is evenly distributed around the conical platform 5. Each second spline shaft 6 can slide relative to the cylindrical component 3 to provide guidance and support. Support plates 7 are respectively installed on the multiple second spline shafts 6 and are all located inside the cylindrical component 3, abutting against the inner wall of the center hole of the tray. Rollers 8 are respectively installed on the multiple support plates 7 and abut against the side of the conical platform 5, serving to reduce friction and minimize wear between the conical platform 5 and the multiple support plates 7. Springs 9 are respectively fitted onto the multiple second spline shafts 6 and are located between the cylindrical component 3 and the multiple support plates 7, providing elastic force for elastic reset. The first spline shaft 4 is controllably slidable relative to the first spline cylinder 2 to allow the multiple support plates 7 to move closer together or disperse.

[0039] This disclosure provides a 3D printer feed rack structure. Under external force, the first spline shaft 4 slides relative to the first spline cylinder 2 towards the plurality of rollers 8. Guided and supported by the plurality of second spline shafts 6, the rollers 8 disperse, allowing the plurality of support plates 7 to abut against the inner wall of the feed tray's central hole, thus completing the feed tray installation. When the filament is exhausted, under external force, the first spline shaft 4 slides relative to the first spline cylinder 2 away from the plurality of rollers 8. Under the elastic force of the plurality of springs 9 and the guiding and supporting action of the plurality of second spline shafts 6, the support plates 7 move closer together, thus disassembling the feed tray. Therefore, the loading and unloading of the feed tray can be completed simply by driving the first spline shaft 4 to slide, offering the advantage of simple operation.

[0040] Optionally, combined Figure 1As shown, the assembly also includes a movable plate 10, a guide shaft 11, and a screw 12. The movable plate 10 is rotatably mounted on the first splined shaft 4 and located outside the cylindrical component 3. The first splined shaft 4 can rotate relative to the movable plate 10. The guide shaft 11 is slidably inserted through the movable plate 10 and mounted on the vertical wall of the cylindrical component 1, serving as a guide and support to improve the stability of the movable plate 10 during movement. The screw 12 is threadedly connected to the movable plate 10 and rotatably mounted on the vertical wall of the cylindrical component 1. Through the interaction between the threads, the rotational motion is converted into linear motion. The axes of the guide shaft 11 and the screw 12 are both parallel to the axis of the first splined cylinder 2, ensuring coordinated movement among the components.

[0041] In this embodiment, the reciprocating screw 12, guided and supported by the guide shaft 11, causes the moving plate 10 to reciprocate, thereby driving the first spline shaft 4 to reciprocate. This ultimately allows the multiple support plates 7 to move closer together or towards each other. Furthermore, the threaded connection has a self-locking function, ensuring the stability of the material tray after installation. Simultaneously, the first spline shaft 4 and the moving plate 10 are rotatably mounted, allowing the first spline shaft 4 to rotate under the drive of the first spline cylinder 2, thus ensuring smooth material feeding.

[0042] Optionally, combined Figure 1 and Figure 3 As shown, it also includes a first bearing housing 13 and a first bearing 14. The first bearing housing 13 is mounted on the movable plate 10 and sleeved on the first splined shaft 4. The first bearing 14 is installed between the first bearing housing 13 and the first splined shaft 4.

[0043] In this embodiment, after the first bearing housing 13 is installed on the movable plate 10, it is used to support the installation of the first bearing 14 and limit the position of the first bearing 14. The first bearing 14 is used to support the installation of the rotatable first spline shaft 4, reduce the friction force on the first spline shaft 4, and improve the accuracy of the first spline shaft 4 during rotation.

[0044] Optionally, combined Figure 1 and Figure 4 As shown, it also includes a second bearing housing 15 and a second bearing 16. The second bearing housing 15 is mounted on the vertical wall of the L-shaped plate 1 and sleeved on the screw 12. The second bearing 16 is installed between the second bearing housing 15 and the screw 12.

[0045] In this embodiment, the second bearing seat 15 is installed on the vertical wall of the L-shaped plate 1 to support and limit the installation of the second bearing 16. The second bearing 16 is used to support and install the rotatable screw 12, reducing the friction between the screw 12 and the vertical wall of the L-shaped plate 1.

[0046] Optionally, combined Figure 1 As shown, it also includes a linear bearing 17. The linear bearing 17 is fitted onto the guide shaft 11 and mounted on the movable plate 10.

[0047] In this embodiment, a linear bearing 17 is also included, which is fitted onto the guide shaft 11 and mounted on the movable plate 10. The linear bearing 17 is used to reduce the friction between the guide shaft 11 and the movable plate 10 and to improve the accuracy of the movable plate 10 when sliding relative to the guide shaft 11.

[0048] Optionally, combined Figure 1 As shown, it also includes a first fixing ring 18. The first fixing ring 18 is installed on the guide shaft 11, and the moving plate 10 is located between the first fixing ring 18 and the vertical wall of the L-shaped plate 1 along the axial direction of the guide shaft 11.

[0049] In this embodiment, a first retaining ring 18 is also installed on the guide shaft 11. The first retaining ring 18 serves to limit the movement range of the movable plate 10 and prevent the movable plate 10 from falling off the guide shaft 11.

[0050] Optionally, combined Figure 1 As shown, it also includes a knob 19. The knob 19 is mounted on the screw 12 for gripping.

[0051] In this embodiment, a knob 19 is also mounted on the screw 12. The knob 19 is for gripping so as to manually drive the screw 12 to rotate.

[0052] Optionally, combined Figure 1 As shown, it also includes a third bearing housing 20 and a third bearing 21. The third bearing housing 20 is mounted on the vertical wall of the L-shaped plate 1 and sleeved on the first splined cylinder 2. The third bearing 21 is installed between the third bearing housing 20 and the first splined cylinder 2.

[0053] In this embodiment, the third bearing housing 20 is installed behind the vertical wall of the L-shaped plate 1 to support and limit the installation of the third bearing 21. The third bearing 21 supports the rotatable first splined cylinder 2, reducing the frictional force on the first splined shaft 4. This converts sliding friction into rolling friction, reducing the frictional force that needs to be overcome during feeding, thus facilitating feeding.

[0054] Optionally, combined Figure 1 and Figure 5 As shown, it also includes a second spline sleeve 22. The second spline sleeve 22 is respectively fitted onto a plurality of second spline shafts 6, and is installed on the outer wall of the cylindrical part 3.

[0055] In this embodiment, a second spline sleeve 22 is further included, which is respectively fitted onto a plurality of second spline shafts 6 and mounted on the outer wall of the cylindrical component 3. The plurality of second spline sleeves 22 are used to improve the stability of the plurality of second spline shafts 6, thereby improving the fixing effect on the material tray.

[0056] Optionally, combined Figure 1 and Figure 5 As shown, it also includes a second retaining ring 23. The second retaining rings 23 are respectively installed on multiple second splined shafts 6, and are all located outside the cylindrical part 3.

[0057] In this embodiment, a second retaining ring 23 is further included, which is respectively installed on a plurality of second splined shafts 6 and is located outside the cylindrical member 3. The plurality of second retaining rings 23 are used to limit the movement of the plurality of second splined shafts 6 from the plurality of second splined sleeves 22 and from the cylindrical member 3.

[0058] The foregoing description and accompanying drawings have fully illustrated embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of this disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A material rack structure for a 3D printer, characterized in that, include: A profile plate, the horizontal wall of which is used to connect to the frame profile of the 3D printer; The first splined cylinder is rotatably inserted through the vertical wall of the L-shaped plate; A cylindrical component is installed on the outer wall of the first splined cylinder and is distributed coaxially with the first splined cylinder; The first spline shaft is slidably inserted through the first spline cylinder; A tapered platform is mounted on the first splined shaft and located inside the cylindrical component; The second spline shaft is rotatably inserted through the cylindrical component along the axial direction of the cylindrical component and is evenly distributed around the cone-shaped platform. Support plates are respectively installed on multiple second spline shafts, and are all located inside the cylindrical component; Rollers are respectively installed on multiple support plates, and all abut against the side of the conical platform; Springs are respectively fitted onto multiple second splined shafts and are respectively located between the cylindrical component and multiple support plates; The first spline shaft is controllable to slide relative to the first spline cylinder, so that the plurality of support plates move closer together or disperse.

2. The 3D printer feed rack structure according to claim 1, characterized in that, Also includes: A movable plate is rotatably mounted on the first splined shaft and located outside the cylindrical component; A guide shaft is slidably inserted through the movable plate and installed on the vertical wall of the L-shaped plate; A screw is threadedly connected to the movable plate and rotatably mounted on the vertical wall of the L-shaped plate; The axis of the guide shaft and the axis of the screw are both parallel to the axis of the first splined cylinder.

3. The 3D printer feed rack structure according to claim 2, characterized in that, Also includes: The first bearing housing is mounted on the movable plate and sleeved on the first splined shaft; The first bearing is installed between the first bearing housing and the first splined shaft.

4. A 3D printer feed rack structure according to claim 2, characterized in that, Also includes: The second bearing housing is installed on the vertical wall of the L-shaped plate and sleeved on the screw; The second bearing is installed between the second bearing housing and the screw.

5. A 3D printer feed rack structure according to claim 2, characterized in that, Also includes: A linear bearing is fitted onto the guide shaft and mounted on the movable plate.

6. A 3D printer feed rack structure according to claim 2, characterized in that, Also includes: A first fixing ring is installed on the guide shaft along the axial direction of the guide shaft, and the moving plate is located between the first fixing ring and the vertical wall of the L-shaped plate.

7. A 3D printer feed rack structure according to claim 2, characterized in that, Also includes: A knob, mounted on the screw, is used for gripping.

8. A 3D printer feed rack structure according to any one of claims 1 to 7, characterized in that, Also includes: The third bearing housing is installed on the vertical wall of the L-shaped plate and sleeved on the first splined cylinder; The third bearing is installed between the third bearing housing and the first splined cylinder.

9. A 3D printer feed rack structure according to any one of claims 1 to 7, characterized in that, Also includes: The second spline sleeve is respectively fitted onto multiple second spline shafts, and is installed on the outer wall of the cylindrical component.

10. A 3D printer feed rack structure according to any one of claims 1 to 7, characterized in that, Also includes: The second retaining rings are respectively installed on multiple second splined shafts, and are all located outside the cylindrical component.

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