Movement device and 3D printer

Abstract

The utility model relates to the field of 3D printing, in particular to a movement device and a 3D printer, and the movement device comprises a first transmission belt extending in the first direction; a second transmission belt extending in the first direction; the third transmission belt extends in the second direction perpendicular to the first direction, the first end of the third transmission belt is in transmission connection with the first transmission belt, and the second end of the third transmission belt is in transmission connection with the second transmission belt; the output assembly is fixed on the third transmission belt; the third transmission belt is configured to drive the output assembly to move in the second direction under the condition that the first transmission belt and the second transmission belt rotate in the same direction; under the condition that the first transmission belt and the second transmission belt rotate reversely, the third transmission belt drives the output assembly to move in the first direction. The problem that the transmission belt is loosened after being used for a long time can be solved, the movement precision of the output assembly is improved, and therefore the printing precision and the model quality are improved.

Description

Technical Field

[0001] The present application relates to the field of 3D printing, and in particular to a motion device and a 3D printer. Background Art

[0002] Fused Deposition Modeling (FDM) is a technology that constructs 3D models by depositing molten consumables layer by layer. Therefore, 3D printers based on Fused Deposition Modeling (FDM) technology usually need to be equipped with a transmission member to transmit the power of the drive assembly to the nozzle assembly or the printing platform assembly, so that the nozzle assembly or the printing platform assembly moves to achieve printing. In the related art, a belt is often used as a transmission member to transmit the power of the drive assembly to other components. However, after working for a long time, the belt transmission member is easy to loosen, so that the power of the drive assembly cannot be effectively transmitted to other components, resulting in a decrease in the printing accuracy of the 3D printer and affecting the quality of the 3D printed model. Utility Model Content

[0003] An embodiment of the present application provides a motion device that can effectively improve the motion accuracy of an output component, thereby improving printing accuracy and model quality.

[0004] An embodiment of the present application provides a sports device, including:

[0005] A first transmission belt extending along a first direction;

[0006] a second transmission belt extending along the first direction;

[0007] A third transmission belt extends in a second direction perpendicular to the first direction, the third transmission belt having a first end and a second end located in the second direction, the first end of the third transmission belt being transmission-connected to the first transmission belt, and the second end of the third transmission belt being transmission-connected to the second transmission belt; and

[0008] An output assembly, fixed to the third transmission belt;

[0009] The third transmission belt is configured as follows:

[0010] When the first transmission belt and the second transmission belt rotate in the same direction, the third transmission belt drives the output assembly to move along the second direction;

[0011] In the case where the first transmission belt and the second transmission belt rotate in opposite directions, the third transmission belt drives the output assembly to move in the first direction.

[0012] A 3D printer provided in one embodiment of the present application includes the above-mentioned motion device.

[0013] Compared with the prior art, the beneficial features of the embodiments of the present application are as follows: the motion device and the 3D printer include a first transmission belt extending in a first direction; a second transmission belt extending in the first direction; a third transmission belt extending in a second direction perpendicular to the first direction, the third transmission belt having a first end and a second end located in the second direction, the first end of the third transmission belt being transmission-connected to the first transmission belt, and the second end of the third transmission belt being transmission-connected to the second transmission belt; and an output assembly fixed to the third transmission belt; through the implementation of the present application, when the first transmission belt and the second transmission belt rotate in the same direction, the third transmission belt drives the output assembly to move in the second direction; when the first transmission belt and the second transmission belt rotate in the opposite direction, the third transmission belt drives the output assembly to move in the first direction, which can not only effectively drive the output assembly to move in the first direction and the second direction, but also, by setting three transmission belts to transmit power, thereby driving the output assembly to move, the length of a single transmission belt can be shortened, thereby improving the problem of the transmission belt loosening after long-term use, improving the movement accuracy of the output assembly, thereby improving the printing accuracy and model quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the motion device according to an embodiment of the present application;

[0015] Figure 2 for Figure 1 A magnified view of the local A structure;

[0016] Figure 3 for Figure 1 The schematic diagram of the motion device structure shown;

[0017] Figure 4 for Figure 3 A magnified view of the local B structure;

[0018] Figure 5 for Figure 3 A schematic diagram of a partial structure of the motion device shown;

[0019] Figure 6 for Figure 5 A magnified view of the local C structure;

[0020] Figure 7 for Figure 5 The schematic diagram of the motion device structure shown;

[0021] Figure 8 for Figure 5 A schematic diagram of a partial structure of the motion device shown;

[0022] Fig. 9 for Figure 8 A magnified view of the local D structure;

[0023] Fig.10 for Figure 8 Right view of;

[0024] Fig.11 for Fig.10 A magnified view of the local E structure;

[0025] Wherein: 1-first transmission belt (1a-first end of the first transmission belt, 1b-second end of the first transmission belt, 1c-first side of the first transmission belt, 1d-second side of the first transmission belt), 2-second transmission belt (2a-first end of the second transmission belt, 2b-second end of the second transmission belt, 2c-first side of the second transmission belt, 2d-second side of the second transmission belt), 3-third transmission belt (3a-first end of the third transmission belt, 3b-second end of the third transmission belt, 3c-first side of the third transmission belt, 3d-second side of the third transmission belt), 4-output assembly, 5-first synchronous wheel, 6-second synchronous wheel, 7-first slide bar, 8-second slide bar, 9-first slide seat, 10-second slide seat, 11-first clamping wheel, 12-second clamping wheel, 13-connecting rod, 14-first synchronous wheel, 15-second synchronous wheel, 16-second synchronous wheel, 17-first synchronous wheel, 18-second synchronous wheel, 19-first synchronous wheel, 20-second synchronous wheel, 21-second synchronous wheel, 22-second synchronous wheel, 23-second synchronous wheel, 24-second synchronous wheel, 25-second synchronous wheel, 26-second synchronous wheel, 27-second synchronous wheel, 28-second synchronous wheel, 29-second synchronous wheel, 30-second synchronous wheel, 31-second synchronous wheel, 32-second synchronous wheel, 33-second synchronous wheel, 34-second synchronous wheel, 35-second synchronous wheel, 36-second synchronous wheel, 37-second synchronous wheel, 38-second synchronous wheel, 39-second synchronous wheel, 40-second synchronous wheel, 41-first synchronous wheel, 42-second synchronous wheel, 43-second synchronous wheel, 44-second synchronous wheel, 45-second synchronous wheel, 46-second synchronous wheel, 47-second synchronous wheel A driving assembly (1401-first driving part, 1402-first driving wheel), 15-second driving assembly (1501-second driving part, 1502-second driving wheel), 16-base, 17-first driven wheel, 18-second driven wheel, 19-first tensioning assembly (1901-first pulling block (19011-first limiting hole), 1902-first rotating shaft, 1903-first elastic part, 1904-first limiting column), 20-second tensioning assembly (2001-second pulling block (20011-second limiting hole), 2002-second rotating shaft, 2003-second elastic part, 2004-second limiting column), 21-third tensioning assembly (2101-fixed seat (21011-assembly groove, 21012-tensioning groove), 2102-pressing block). DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0029] Please refer to Figures 1 to 11 The motion device of the embodiment of the present application comprises a first transmission belt 1, a second transmission belt 2, a third transmission belt 3 and an output assembly 4. The first transmission belt 1 extends along a first direction, the second transmission belt 2 extends along the first direction, and the third transmission belt 3 extends along a second direction, and the second direction is perpendicular to the first direction. The third transmission belt 3 has a first end 3a and a second end 3b located in the second direction, the first end 3a of the third transmission belt 3 is transmission-connected to the first transmission belt 1, and the second end 3b of the third transmission belt 3 is transmission-connected to the second transmission belt 2. The output assembly 4 is fixed to the third transmission belt 3. The third transmission belt 3 is configured such that: when the first transmission belt 1 and the second transmission belt 2 rotate in the same direction, the third transmission belt 3 drives the output assembly 4 to move in the second direction; when the first transmission belt 1 and the second transmission belt 2 rotate in the opposite direction, the third transmission belt 3 drives the output assembly 4 to move in the first direction.

[0030] The motion device of the embodiment of the present application includes a first transmission belt 1, a second transmission belt 2, a third transmission belt 3 and an output component 4. When the first transmission belt 1 and the second transmission belt 2 rotate in the same direction, the third transmission belt 3 drives the output component 4 to move in the second direction. When the first transmission belt 1 and the second transmission belt 2 rotate in opposite directions, the third transmission belt 3 drives the output component 4 to move in the first direction. The embodiment of the present application can not only effectively drive the output component 4 to move in the first direction and the second direction, but also, by setting three transmission belts to transmit power, thereby driving the output component 4 to move, the length of a single transmission belt can be shortened, that is, the length of the first transmission belt 1, the second transmission belt 2 and the third transmission belt 3 can be shortened, thereby improving the problem of loosening of the transmission belt after long-term use, improving the movement accuracy of the output component 4, and thus improving the printing accuracy and model quality.

[0031] In some embodiments, please refer to Figure 1 The output component 4 may be a nozzle component. The first direction may be a Z direction, and the second direction may be an X direction.

[0032] In some embodiments, the output component 4 may be a printing platform component. The first direction may be an X direction, and the second direction may be a Y direction.

[0033] In some examples, the structures of the first transmission belt 1 and the second transmission belt 2 may be the same, and the rotation speeds of the first transmission belt 1 and the second transmission belt 2 may be the same, so that both ends of the third transmission belt 3 can be balanced, further improving the printing accuracy.

[0034] Optionally, at least one of the first transmission belt 1, the second transmission belt 2 and the third transmission belt 3 can be a closed-loop belt. It is understood that the first transmission belt 1, the second transmission belt 2 and the third transmission belt 3 can all be closed-loop belts. Alternatively, any two of the first transmission belt 1, the second transmission belt 2 and the third transmission belt 3 can be closed-loop belts. Alternatively, any one of the first transmission belt 1, the second transmission belt 2 and the third transmission belt 3 can be a closed-loop belt.

[0035] In some embodiments, please refer to Figure 1 , Figure 3 , Figure 5 , Figure 7 and Figure 8 , the first transmission belt 1 may be a closed-loop belt. The second transmission belt 2 may be a closed-loop belt. The third transmission belt 3 may be a closed-loop belt. In this embodiment, the first transmission belt 1, the second transmission belt 2 and the third transmission belt 3 are respectively configured as closed-loop belts, so that the first transmission belt 1, the second transmission belt 2 and the third transmission belt 3 are less likely to loosen, further improving the service life and transmission accuracy of the first transmission belt 1, the second transmission belt 2 and the third transmission belt 3, thereby improving the motion accuracy of the output component 4.

[0036] Please refer to Figure 8 The above-mentioned closed-loop belt refers to a belt with a closed loop structure.

[0037] In some embodiments, please refer to Figure 1 , Figure 5 and Figure 8 The third transmission belt 3 can drive the output component 4 to move forward in the first direction, and the third transmission belt 3 can also drive the output component 4 to move backward in the first direction. The third transmission belt 3 can also drive the output component 4 to move forward in the second direction, and the third transmission belt 3 can also drive the output component 4 to move backward in the second direction. The moving direction of the output component 4 can be effectively controlled by controlling the rotation of the first transmission belt 1 and the second transmission belt 2. Not only is the structure simple and easy to install, but it also improves the movement accuracy of the output component 4 and the service life of the movement device.

[0038] Please refer to Figure 8In this embodiment, the third transmission belt 3 has a first side 3c located in the positive direction of the first direction and a second side 3d located in the opposite direction of the first direction, and the output assembly 4 is fixed to the first side 3c of the third transmission belt 3. It can be understood that during the rotation of the third transmission belt 3, the first side 3c of the third transmission belt 3 and the second side 3d of the third transmission belt 3 move in opposite directions. The first side 3c of the third transmission belt 3 is fixed to the output assembly 4, and the second side 3d of the third transmission belt 3 passes through the output assembly 4, and the second side 3d of the third transmission belt 3 can move relative to the output assembly 4 in the second direction.

[0039] In this embodiment, when the first transmission belt 1 rotates in the clockwise direction S and the second transmission belt 2 also rotates in the clockwise direction S, the third transmission belt 3 rotates in the clockwise direction S following the first transmission belt 1 and the second transmission belt 2, driving the output assembly 4 to move forward in the second direction.

[0040] In this embodiment, when the first transmission belt 1 rotates counterclockwise N and the second transmission belt 2 also rotates counterclockwise N, the third transmission belt 3 follows the first transmission belt 1 and the second transmission belt 2 to rotate counterclockwise N, driving the output component 4 to move in the opposite direction along the second direction.

[0041] In this embodiment, when the first transmission belt 1 rotates clockwise S and the second transmission belt 2 rotates counterclockwise N, the third transmission belt 3 does not rotate, and drives the output assembly 4 to move forward in the first direction.

[0042] In this embodiment, when the first transmission belt 1 rotates counterclockwise N and the second transmission belt 2 rotates clockwise S, the third transmission belt 3 does not rotate, and drives the output assembly 4 to move in the opposite direction along the first direction.

[0043] The above-mentioned motion device may further include a first synchronous wheel 5 and a second synchronous wheel 6, please refer to Figures 9 to 11 . The first synchronous wheel 5 is meshed with the first end 3a of the third transmission belt 3, and at the same time, the first synchronous wheel 5 is also meshed with the first transmission belt 1, and the first synchronous wheel 5 is configured to transmit the power of the first transmission belt 1 to the third transmission belt 3. The second synchronous wheel 6 is meshed with the second end 3b of the third transmission belt 3, and at the same time, the second synchronous wheel 6 is also meshed with the second transmission belt 2, and the second synchronous wheel 6 is configured to transmit the power of the second transmission belt 2 to the third transmission belt 3. The power of the first transmission belt 1 is transmitted to the third transmission belt 3 through the first synchronous wheel 5, and the power of the second transmission belt 2 is transmitted to the third transmission belt 3 through the second synchronous wheel 6. The structure is simple and the motion accuracy of the output component 4 can be effectively guaranteed.

[0044] In some embodiments, please refer to Figure 8The first transmission belt 1 has a first side 1c and a second side 1d that are arranged opposite to each other, wherein the first side 1c of the first transmission belt 1 is arranged away from the second transmission belt 2 relative to the second side 1d of the first transmission belt 1. The first synchronous wheel 5 is engaged with the first side 1c of the first transmission belt 1. Similarly, the second transmission belt 2 has a first side 2c and a second side 2d that are arranged opposite to each other, wherein the first side 2c of the second transmission belt 2 is arranged away from the first transmission belt 1 relative to the second side 2d of the second transmission belt 2. The second synchronous wheel 6 is engaged with the first side 2c of the second transmission belt 2. The first transmission belt 1 and the second transmission belt 2 not only have the same structure, but also the first transmission belt 1 and the second transmission belt 2 are arranged symmetrically, which further improves the movement accuracy of the third transmission belt 3.

[0045] In this embodiment, please refer to Figure 8 When the first transmission belt 1 rotates in the clockwise direction S and the second transmission belt 2 also rotates in the clockwise direction S, the first synchronous wheel 5 rotates along with the first transmission belt 1 in the clockwise direction S, and the second synchronous wheel 6 rotates along with the second transmission belt 2 in the clockwise direction S, thereby driving the third transmission belt 3 to rotate in the clockwise direction S. At this time, the first side 3c of the third transmission belt 3 moves in the positive direction along the second direction, and the second side 3d of the third transmission belt 3 moves in the reverse direction along the second direction. Therefore, the output component 4 fixed to the first side 3c of the third transmission belt 3 also moves in the positive direction along the second direction.

[0046] In this embodiment, please refer to Figure 8 When the first transmission belt 1 rotates counterclockwise N and the second transmission belt 2 also rotates counterclockwise N, the first synchronous wheel 5 rotates counterclockwise N with the first transmission belt 1, and the second synchronous wheel 6 rotates counterclockwise N with the second transmission belt 2, thereby driving the third transmission belt 3 to rotate counterclockwise N. At this time, the first side 3c of the third transmission belt 3 moves in the opposite direction along the second direction, and the second side 3d of the third transmission belt 3 moves in the positive direction along the second direction. Therefore, the output component 4 fixed to the first side 3c of the third transmission belt 3 also moves in the opposite direction along the second direction.

[0047] In this embodiment, please refer to Figure 8, when the first transmission belt 1 rotates in the clockwise direction S and the second transmission belt 2 rotates in the counterclockwise direction N, the first transmission belt 1 transmits the power rotating in the clockwise direction S to the first synchronous wheel 5, and the second transmission belt 2 transmits the power rotating in the counterclockwise direction N to the second synchronous wheel 6. Since the first synchronous wheel 5 and the second synchronous wheel 6 are simultaneously engaged with the third transmission belt 3, the first synchronous wheel 5 and the second synchronous wheel 6 cannot rotate in opposite directions, so the first synchronous wheel 5, the second synchronous wheel 6 and the third transmission belt 3 do not rotate. Since the first synchronous wheel 5 is engaged with the first side 1c of the first transmission belt 1, the first side 1c of the first transmission belt 1 moves forward in the first direction at this time, and the non-rotating first synchronous wheel 5 follows the first side 1c of the first transmission belt 1 and moves forward in the first direction. Similarly, since the second synchronous wheel 6 is engaged with the first side 2c of the second transmission belt 2, the first side 2c of the second transmission belt 2 moves positively along the first direction, the non-rotating second synchronous wheel 6 follows the first side 2c of the second transmission belt 2 and moves positively along the first direction, and the third transmission belt 3 moves positively along the first direction with the first synchronous wheel 5 and the second synchronous wheel 6. Therefore, the output component 4 fixed to the first side 3c of the third transmission belt 3 also moves positively along the first direction.

[0048] In this embodiment, please refer to Figure 8 , when the first transmission belt 1 rotates counterclockwise N and the second transmission belt 2 rotates clockwise S, the first transmission belt 1 transmits the power rotating in the counterclockwise N to the first synchronous wheel 5, and the second transmission belt 2 transmits the power rotating in the clockwise S to the second synchronous wheel 6. Since the first synchronous wheel 5 and the second synchronous wheel 6 are simultaneously engaged with the third transmission belt 3, the first synchronous wheel 5 and the second synchronous wheel 6 cannot rotate in opposite directions, so the first synchronous wheel 5, the second synchronous wheel 6 and the third transmission belt 3 do not rotate. Since the first synchronous wheel 5 is engaged with the first side 1c of the first transmission belt 1, the first side 1c of the first transmission belt 1 moves in the opposite direction of the first direction at this time, and the non-rotating first synchronous wheel 5 follows the first side 1c of the first transmission belt 1 and moves in the opposite direction of the first direction. Similarly, since the second synchronous wheel 6 is engaged with the first side 2c of the second transmission belt 2, the first side 2c of the second transmission belt 2 moves in the opposite direction along the first direction. The non-rotating second synchronous wheel 6 follows the first side 2c of the second transmission belt 2 and moves in the opposite direction along the first direction. The third transmission belt 3 moves in the opposite direction along with the first synchronous wheel 5 and the second synchronous wheel 6 in the first direction. Therefore, the output component 4 fixed to the first side 3c of the third transmission belt 3 also moves in the opposite direction along the first direction.

[0049] It can be understood that, in other embodiments, the first synchronous wheel 5 can be engaged with the second side 1 d of the first transmission belt 1 , and the second synchronous wheel 6 can be engaged with the second side 2 d of the second transmission belt 2 .

[0050] It can be understood that in other embodiments, the output assembly 4 can be fixed to the second side 3 d of the third transmission belt 3 .

[0051] Please refer to Figure 1 , Figure 3 and Figure 7 The above-mentioned motion device may also include a first slide bar 7, a second slide bar 8, a first slide seat 9 and a second slide seat 10. The first slide bar 7 and the second slide bar 8 are relatively fixed, and the first slide bar 7 and the second slide bar 8 extend respectively along the first direction. The first slide seat 9 is slidably connected to the first slide bar 7, and the second slide seat 10 is slidably connected to the second slide bar 8. The first synchronous wheel 5 is rotationally connected to the first slide seat 9, and the second synchronous wheel 6 is rotationally connected to the second slide seat 10. The relative fixing of the first slide bar 7 and the second slide bar 8 can effectively limit the distance between the first synchronous wheel 5 and the second synchronous wheel 6, and can effectively limit the moving trajectory of the first synchronous wheel 5 and the second synchronous wheel 6, thereby further improving the motion accuracy of the output component 4.

[0052] Please refer to Figures 8 to 11 The above-mentioned motion device may further include a first clamping wheel 11 rotatably connected to the first slide 9, and a second clamping wheel 12 rotatably connected to the second slide 10. The first clamping wheel 11 can clamp the first transmission belt 1 against the first synchronous wheel 5, so that the first transmission belt 1 and the first synchronous wheel 5 can maintain effective meshing, thereby further improving the motion accuracy of the output component 4. The second clamping wheel 12 can clamp the second transmission belt 2 against the second synchronous wheel 6, so that the second transmission belt 2 and the second synchronous wheel 6 can maintain effective meshing, thereby further improving the motion accuracy of the output component 4.

[0053] Please refer to Figures 8 to 11 The first slide 9 may be provided with two first clamping wheels 11, which are spaced apart along the first direction and are symmetrically arranged about the first synchronous wheel 5, so as to more effectively clamp the first transmission belt 1 against the first synchronous wheel 5, and further improve the motion accuracy. Similarly, the second slide 10 may be provided with two second clamping wheels 12, which are spaced apart along the first direction and are symmetrically arranged about the second synchronous wheel 6, so as to more effectively clamp the second transmission belt 2 against the second synchronous wheel 6, and further improve the motion accuracy.

[0054] In some embodiments, please refer to Figure 8As shown, the first clamping wheel 11 can press the first side 1c of the first transmission belt 1 against the first synchronous wheel 5, so that the first transmission belt 1 and the first synchronous wheel 5 can maintain effective meshing. The second clamping wheel 12 can press the first side 2c of the second transmission belt 2 against the second synchronous wheel 6, so that the second transmission belt 2 and the second synchronous wheel 6 can maintain effective meshing. The first clamping wheel 11 and the second clamping wheel 12 can further improve the motion accuracy of the output assembly 4.

[0055] It is understandable that, in other embodiments, the first synchronous wheel 5 may be engaged with the second side 1d of the first transmission belt 1, and the first pressing wheel 11 may press the second side 1d of the first transmission belt 1 against the first synchronous wheel 5. The second synchronous wheel 6 may be engaged with the second side 2d of the second transmission belt 2, and the second pressing wheel 12 may press the second side 2d of the second transmission belt 2 against the second synchronous wheel 6.

[0056] The above-mentioned motion device may further include at least one connecting rod 13, please refer to Figure 1 , Figure 3 , Figure 5 and Figure 7 . The connecting rod 13 extends along the second direction, one end of the connecting rod 13 is fixed to the first slide 9, and the other end of the connecting rod 13 is fixed to the second slide 10. The output component 4 is slidably connected to the connecting rod 13. The connecting member can support the output component 4, and when the output component 4 moves along the second direction, the output component 4 can slide along the second direction on the connecting rod 13, and the connecting rod 13 can improve the stability of the movement of the output component 4, thereby improving the movement accuracy and printing accuracy of the output component 4. In addition, the connecting component can reduce the pressure exerted by the output component 4 on the third transmission belt 3, further avoid the third transmission belt 3 from loosening, and improve the service life of the third transmission belt 3 and the movement accuracy of the output component 4.

[0057] In some embodiments, please refer to Figure 1 , Figure 3 ,and Figures 5 to 7 There can be two connecting rods 13. The two connecting rods 13 are spaced apart along the first direction, and the third transmission belt 3 is arranged between the two connecting rods 13. The output assembly 4 is slidably connected to the two connecting rods 13 respectively, which prevents the output assembly 4 from rotating around the connecting rods 13, further improves the stability of the output assembly 4, and thus improves the movement accuracy and printing accuracy of the output assembly 4.

[0058] Please refer to Figure 1 , Figure 3 , Figure 5 and Figure 7The above-mentioned motion device may further include a first drive assembly 14 and a second drive assembly 15. The first drive assembly 14 is connected to the first transmission belt 1 in a transmission manner, and the first drive assembly 14 is used to provide power to the first transmission belt 1 to drive the first transmission belt 1 to rotate. The second drive assembly 15 is connected to the second transmission belt 2 in a transmission manner, and the second drive assembly 15 is used to provide power to the second transmission belt 2 to drive the second transmission belt 2 to rotate.

[0059] Please refer to Figure 7 The first driving assembly 14 may include a first driving unit 1401 and a first driving wheel 1402. The first driving wheel 1402 is fixed to the output end of the first driving unit 1401. The first transmission belt 1 has a first end 1a and a second end 1b located in a first direction, and the first end 1a of the first transmission belt 1 is engaged with the first driving wheel 1402. The power output by the first driving unit 1401 can be transmitted to the first transmission belt 1 through the first driving wheel 1402, thereby driving the first transmission belt 1 to rotate clockwise S or counterclockwise N. The structure is simple, and the first transmission belt 1 can be driven quickly, effectively, and accurately.

[0060] Please refer to Figure 7 The second driving assembly 15 comprises a second driving part 1501 and a second driving wheel 1502. The second driving wheel 1502 is fixed to the output end of the second driving part 1501. The second transmission belt 2 has a first end 2a and a second end 2b located in the first direction, and the first end 2a of the second transmission belt 2 is engaged with the second driving wheel 1502. The power output by the second driving part 1501 can be transmitted to the second transmission belt 2 through the second driving wheel 1502, thereby driving the second transmission belt 2 to rotate clockwise S or counterclockwise N. The structure is simple, and the second transmission belt 2 can be driven quickly, effectively and accurately.

[0061] The first driving part 1401 and the second driving part 1501 can be completely identical. The first driving wheel 1402 and the second driving wheel 1502 can also be completely identical, which is more conducive to the first transmission belt 1 and the second transmission belt 2 to drive the third transmission belt 3 to move in a balanced and stable manner.

[0062] As an example, please refer to Figure 1 , Figure 3 , Figure 5 and Figure 7 , the first driving unit 1401 and the second driving unit 1501 can be motors.

[0063] It is understandable that in other embodiments, the first driving part 1401 and the second driving part 1501 may also be other driving devices. The first driving assembly 14 and the second driving assembly 15 may also be other structures, which will not be described in detail here.

[0064] Please refer to Figure 1 and Figure 3 The above-mentioned sports device may further include a base 16. Please refer to Figure 4 , Figure 8 and Fig.10 The above-mentioned motion device may further include a first driven wheel 17 and a second driven wheel 18. The first driving unit 1401 may be fixed to the base 16, the first driven wheel 17 may be rotatably connected to the base 16, and the first driven wheel 17 may be connected to the second end 1b of the first transmission belt 1, thereby effectively limiting the first transmission belt 1 on the base 16, further ensuring the stability of the first transmission belt 1. The second driving unit 1501 may be fixed to the base 16, the second driven wheel 18 may be rotatably connected to the base 16, and the second driven wheel 18 may be connected to the second end 2b of the second transmission belt 2, thereby effectively limiting the second transmission belt 2 on the base 16, further ensuring the stability of the second transmission belt 2.

[0065] Understandably, please refer to Figure 1 and Figure 3 In the case where the motion device includes a first slide bar 7 and a second slide bar 8, the two ends of the first direction of the first slide bar 7 can be respectively connected and fixed to the base 16, and the two ends of the first direction of the second slide bar 8 can be respectively connected and fixed to the base 16, thereby effectively restricting the third transmission belt 3 on the base 16, further ensuring the stability of the third transmission belt 3.

[0066] Please refer to Figures 1 to 5 ,and Figure 7 The above-mentioned motion device further includes a first tensioning assembly 19. The first tensioning assembly 19 can be used to tension the first transmission belt 1, thereby ensuring the transmission accuracy of the first transmission belt 1, and further ensuring the motion accuracy of the third transmission belt 3.

[0067] Optionally, refer to Figure 2The first tensioning assembly 19 includes a first pull block 1901, a first rotating shaft 1902 and a first elastic part 1903. The first rotating shaft 1902 can be connected to the base 16, and the first pull block 1901 is rotatably connected to the base 16 through the first rotating shaft 1902. The first driven wheel 17 is rotatably connected to the first pull block 1901. The first elastic part 1903 is arranged between the first driven wheel 17 and the first rotating shaft 1902, and the first elastic part 1903 is compressed between the base 16 and the first pull block 1901 along the first direction. The end of the first elastic part 1903 located in the positive direction of the first direction is connected to the first pull block 1901, and the end of the first elastic part 1903 located in the reverse direction of the first direction is connected to the base 16. The first elastic part 1903 can apply a positive thrust along the first direction to the first pull block 1901. Under the action of the first elastic part 1903, the first pull block 1901 can apply a positive pulling force along the first direction to the first transmission belt 1. When the first transmission belt 1 is loose, the first elastic part 1903 can push the first pull block 1901 to move positively along the first direction around the first rotating shaft 1902, so that the first pull block 1901 tightens the first transmission belt 1, thereby tensioning the first transmission belt 1. The first tensioning assembly 19 can adaptively tension the first transmission belt 1 based on the state of the first transmission belt 1. It is easy to use and can keep the first transmission belt 1 in a tensioned state, thereby ensuring the transmission accuracy of the first transmission belt 1 and further ensuring the movement accuracy of the third transmission belt 3.

[0068] Please refer to Figures 1 to 5 ,and Figure 7 The above-mentioned motion device further includes a second tensioning assembly 20. The second tensioning assembly 20 can be used to tension the second transmission belt 2, thereby ensuring the transmission accuracy of the second transmission belt 2, and further ensuring the motion accuracy of the third transmission belt 3.

[0069] Optionally, refer to Figure 4The second tensioning assembly 20 includes a second pull block 2001, a second rotating shaft 2002, and a second elastic part 2003. The second rotating shaft 2002 can be connected to the base 16, and the second pull block 2001 is rotatably connected to the base 16 through the second rotating shaft 2002. The second driven wheel 18 is rotatably connected to the second pull block 2001. The second elastic part 2003 is arranged between the second driven wheel 18 and the second rotating shaft 2002, and the second elastic part 2003 is compressed between the base 16 and the second pull block 2001 along the first direction. The end of the second elastic part 2003 located in the positive direction of the first direction is connected to the second pull block 2001, and the end of the second elastic part 2003 located in the opposite direction of the first direction is connected to the base 16. The second elastic part 2003 can apply a positive thrust along the first direction to the second pull block 2001. Under the action of the second elastic part 2003, the second pull block 2001 can apply a positive pulling force along the first direction to the second transmission belt 2. When the second transmission belt 2 is loose, the second elastic part 2003 can push the second pull block 2001 to move positively along the first direction around the second rotating shaft 2002, so that the second pull block 2001 tightens the second transmission belt 2, thereby tensioning the second transmission belt 2. The second tensioning assembly 20 can adaptively tension the second transmission belt 2 based on the state of the second transmission belt 2, is easy to use, and can keep the second transmission belt 2 in a tensioned state, thereby ensuring the transmission accuracy of the second transmission belt 2, and further ensuring the movement accuracy of the third transmission belt 3.

[0070] As an example, please refer to Figure 2 , Figure 4 , Figure 5 and Figure 7 The first elastic part 1903 may be a spring. The second elastic part 2003 may be a spring. It is understandable that the first elastic part 1903 may be other elastic structures, and the second elastic part 2003 may be other elastic structures, as long as the second tensioning assembly 20 can tension the second transmission belt 2, which will not be described in detail here.

[0071] In some embodiments, please refer to Figure 3 The first tensioning assembly 19 may further include a first limiting column 1904 fixed to the base 16. The first limiting hole 19011 may be provided on the first pull block 1901. The first limiting hole 19011 is a long hole. The first limiting column 1904 is inserted into the first limiting hole 19011. When the first pull block 1901 moves forward in the first direction around the first rotating shaft 1902, the first limiting column 1904 may slide in the first limiting hole 19011 relative to the first pull block 1901. The first limiting column 1904 may be used to limit the extreme position of the first pull block 1901 in the first direction, thereby preventing the first transmission belt 1 from being over-tensioned and affecting the performance of the first transmission belt 1, and further improving the service life of the first transmission belt 1 and the transmission accuracy of the first transmission belt 1.

[0072] Similarly, please refer to Figure 3 and Figure 4 The second tensioning assembly 20 may further include a second limiting column 2004 fixed to the base 16, and a second limiting hole 20011 may be provided on the second pull block 2001, and the second limiting hole 20011 is a long hole. The second limiting column 2004 is inserted into the second limiting hole 20011, and when the second pull block 2001 moves forward along the first direction around the second rotating shaft 2002, the second limiting column 2004 may slide in the second limiting hole 20011 relative to the second pull block 2001, and the second limiting column 2004 may be used to limit the extreme position of the second pull block 2001 in the first direction, thereby preventing the second transmission belt 2 from being over-tensioned and affecting the performance of the second transmission belt 2, and further improving the service life of the second transmission belt 2 and the transmission accuracy of the second transmission belt 2.

[0073] Please refer to Figures 5 to 9 The above-mentioned motion device may further include a third tensioning assembly 21 fixed to the output assembly 4. The third tensioning assembly 21 may be used to tension the third transmission belt 3, thereby further improving the transmission speed of the third transmission belt 3.

[0074] Optionally, refer to Figure 6 , Figure 8 and Fig. 9 The third tensioning assembly 21 may include a fixing seat 2101 and a pressing block 2102 fixed to the fixing seat 2101. The fixing seat 2101 is fixed to the output assembly 4, and the fixing seat 2101 is provided with an assembly groove 21011 and a tensioning groove 21012. The assembly groove 21011 penetrates the fixing seat 2101 along the second direction, and the tensioning groove 21012 is connected to the assembly groove 21011 along the first direction. The third transmission belt 3 is passed through the assembly groove 21011. The pressing block 2102 can press the third transmission belt 3 passed through the assembly groove 21011 into the tensioning groove 21012, thereby tensioning the third transmission belt 3.

[0075] As an example, the first side 3c of the third transmission belt 3 is inserted into the assembly groove 21011. The pressing block 2102 can press the third transmission belt 3 inserted into the assembly groove 21011 into the tensioning groove 21012, thereby shortening the length of the third transmission belt 3 in the second direction and achieving effective tensioning of the third transmission belt 3.

[0076] In some embodiments, the pressing block 2102 may be an eccentric structure with an eccentric angle, thereby effectively shortening the length of the third transmission belt 3 in the second direction and achieving effective tensioning of the third transmission belt 3 .

[0077] The 3D printer of the embodiment of the present application includes any one of the above-mentioned motion devices.

[0078] In the 3D printer of the embodiment of the present application, the motion device includes a first transmission belt 1, a second transmission belt 2, a third transmission belt 3 and an output component 4. When the first transmission belt 1 and the second transmission belt 2 rotate in the same direction, the third transmission belt 3 drives the output component 4 to move in the second direction. When the first transmission belt 1 and the second transmission belt 2 rotate in the opposite direction, the third transmission belt 3 drives the output component 4 to move in the first direction. The embodiment of the present application can not only effectively drive the output component 4 to move in the first direction and the second direction, but also, by setting three transmission belts to transmit power, thereby driving the output component 4 to move, the length of a single transmission belt can be shortened, that is, the length of the first transmission belt 1, the second transmission belt 2 and the third transmission belt 3 can be shortened, thereby improving the problem of loosening of the transmission belt after long-term use, improving the movement accuracy of the output component 4, and thus improving the printing accuracy and model quality.

[0079] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The above embodiments only express the preferred implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A sports device, characterized in that: include: A first transmission belt extending along a first direction; a second transmission belt extending along the first direction; A third transmission belt extends in a second direction perpendicular to the first direction, the third transmission belt having a first end and a second end located in the second direction, the first end of the third transmission belt being transmission-connected to the first transmission belt, and the second end of the third transmission belt being transmission-connected to the second transmission belt; and An output assembly, fixed to the third transmission belt; The third transmission belt is configured as follows: When the first transmission belt and the second transmission belt rotate in the same direction, the third transmission belt drives the output assembly to move along the second direction; In the case where the first transmission belt and the second transmission belt rotate in opposite directions, the third transmission belt drives the output assembly to move in the first direction.

2. The exercise device according to claim 1, characterized in that At least one of the first transmission belt, the second transmission belt, and the third transmission belt is a closed-loop belt.

3. The exercise device according to claim 1, characterized in that When the first transmission belt and the second transmission belt rotate clockwise at the same time, the third transmission belt rotates clockwise following the first transmission belt and the second transmission belt, driving the output assembly to move in the positive direction of the second direction; When the first transmission belt and the second transmission belt rotate counterclockwise at the same time, the third transmission belt rotates counterclockwise following the first transmission belt and the second transmission belt, driving the output assembly to move in the opposite direction along the second direction; When the first transmission belt rotates clockwise and the second transmission belt rotates counterclockwise, the third transmission belt does not rotate, driving the output assembly to move in the positive direction of the first direction; When the first transmission belt rotates counterclockwise and the second transmission belt rotates clockwise, the third transmission belt does not rotate, driving the output assembly to move in the opposite direction of the first direction.

4. The exercise device according to claim 1, characterized in that: The motion device also includes a first synchronous wheel and a second synchronous wheel; Wherein, the first synchronous wheel is meshed with the first end of the third transmission belt and is meshed with the first transmission belt, and the first synchronous wheel is configured to transmit the power of the first transmission belt to the third transmission belt; The second synchronous wheel is meshed with the second end of the third transmission belt and the second transmission belt, and the second synchronous wheel is configured to transmit the power of the second transmission belt to the third transmission belt.

5. The exercise device according to claim 4, characterized in that The motion device further comprises a first sliding rod and a second sliding rod respectively extending along the first direction, a first sliding seat slidably connected to the first sliding rod, and a second sliding seat slidably connected to the second sliding rod; The first synchronous wheel is rotatably connected to the first slide, and the second synchronous wheel is rotatably connected to the second slide.

6. The exercise device according to claim 5, characterized in that The motion device further comprises at least one connecting rod extending along the second direction, and two ends of the connecting rod are respectively fixed to the first sliding seat and the second sliding seat; The output assembly is slidably connected to the connecting rod.

7. The exercise device according to claim 1, characterized in that: The motion device further comprises a first drive assembly and a second drive assembly; Wherein, the first driving assembly is transmission-connected to the first transmission belt to drive the first transmission belt to rotate; The second driving assembly is drivingly connected to the second transmission belt to drive the second transmission belt to rotate.

8. The exercise device according to claim 7, characterized in that The first driving assembly includes a first driving part and a first driving wheel fixed to the output end of the first driving part; The first transmission belt has a first end and a second end located in the first direction, and the first end of the first transmission belt is engaged with the first driving wheel; The second driving assembly includes a second driving part and a second driving wheel fixed to the output end of the second driving part; The second transmission belt has a first end and a second end located in the first direction, and the first end of the second transmission belt is engaged with the second driving wheel.

9. The exercise device according to claim 8, characterized in that The motion device also includes a base, a first driven wheel and a second driven wheel; The first driving part and the second driving part are respectively fixed to the base; The first driven wheel is rotatably connected to the base and meshed with the second end of the first transmission belt; The second driven wheel is rotatably connected to the base and is engaged with the second end of the second transmission belt.

10. A 3D printer, characterized in that: include: A sports device as claimed in any one of claims 1 to 9.

Images