Movable tray mechanism for 3D printer

Abstract

The utility model relates to the technical field of movable tray mechanisms, and provides a movable tray mechanism for a 3D printer, which comprises a base, a movable tray and a movable tray, the width moving part is arranged on the base; the movable part is arranged on the width movable part, and the movable part is provided with a movable frame; the swing part is arranged on the movable frame, and the swing part is provided with a rocker arm and a first driving part; and the rotating piece is arranged on the swinging piece, and the rotating piece is provided with a rotating disc and a second driving piece. The utility model has the advantages that through the cooperation of the width moving part, the swinging part and the rotating part, and the first and second driving parts respectively drive the rocker arm to swing and the turntable to rotate, the angle of the turntable is adjusted in real time, the printing surface is ensured to be horizontal, the material collapse is avoided, the support structure is reduced, and the high-precision forming of complex workpieces is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to mobile tray mechanism technical field, concretely is a kind of mobile tray mechanism for 3D printer. BACKGROUND

[0002] The mobile tray mechanism of 3D printer is one of the key components to realize the printing of objects in three-dimensional space. This mechanism ensures that the tray can be accurately moved to the specified position to accurately deposit materials, thereby ensuring the dimensional accuracy and geometric accuracy of the printed object. The mobile tray mechanism usually includes a precise guide rail system, a stepper or servo motor and a control system, which work together to achieve high-precision position control.

[0003] The existing mobile tray mechanism is usually limited to three-axis movement, and cannot change the angle between the rotating disc and the printer. This makes it difficult for three-axis 3D printers to directly handle printing tasks with inclined or complex curved surfaces, which may require additional support structures to assist in printing overhanging parts, thereby increasing material waste and post-processing workload. Due to the inability to change the angle between the rotating disc and the printer, three-axis 3D printers have difficulty in completing the integrated high-precision forming of internal and external hollow complex workpieces. SUMMARY

[0004] The utility model provides a kind of mobile tray mechanism for 3D printer to solve the technical problems of the prior art.

[0005] The utility model solves the above-mentioned technical problems by adopting the following technical scheme: a mobile tray mechanism for a 3D printer is provided, comprising:

[0006] A base is provided with a length, a width and a height.

[0007] A width moving part is arranged on the base along the width direction of the base.

[0008] A movable part is arranged on the width moving part, and the movable part is provided with a moving frame. The moving frame is movably arranged on the movable part, and the moving frame extends along the height direction to form an arc-shaped support. The arc-shaped support is provided with a first arc-shaped part and a second arc-shaped part in an arc shape. A rotating space is formed between the first arc-shaped part and the second arc-shaped part.

[0009] A swing part is arranged on the moving frame, and the swing part is provided with a rocker arm and a first driving part. The rocker arm is swingably arranged on the moving frame, and the first driving part is arranged on the moving frame. The first driving part is in transmission connection with the rocker arm.

[0010] A rotating member is arranged on the swinging member, and the rotating member is provided with a rotating disc and a second driving member.

[0011] In the mobile tray mechanism for the 3D printer, the width moving member comprises:

[0012] A first support frame is arranged on the base;

[0013] A first guide shaft is inserted into the first support frame;

[0014] A third driving member is arranged on the first support frame;

[0015] A first screw rod is movably arranged on the side of the first guide shaft, and one end of the first screw rod is connected with the output end of the third driving member;

[0016] A second support frame is arranged on the base;

[0017] A second guide shaft is inserted into the second support frame;

[0018] A second screw rod is movably arranged on the side of the second guide shaft, and the second screw rod is threadedly connected with the second support frame;

[0019] A first pulley is fixedly sleeved on the first screw rod;

[0020] A second pulley is fixedly sleeved on the second screw rod;

[0021] A first transmission belt is movably sleeved on one end of the first pulley, and the other end of the first transmission belt away from the first screw rod is movably sleeved on the second pulley, and the second pulley can be rotated by the first pulley driving the first transmission belt to rotate, so as to drive the second screw rod to rotate.

[0022] In the mobile tray mechanism for the 3D printer, the movable member comprises:

[0023] A third support frame is movably sleeved on the first guide shaft, and the first screw rod is threadedly connected with the third support frame;

[0024] A fourth support frame is movably sleeved on the second guide shaft, and the second screw rod is threadedly connected with the fourth support frame;

[0025] A third guide shaft, one end of the third guide shaft is inserted into the third support frame, and the other end is inserted into the fourth support frame;

[0026] A fourth guide shaft, one end of the fourth guide shaft is inserted into the third support frame, and the other end is inserted into the fourth support frame, and the fourth guide column is arranged in parallel with the third guide column along the length direction of the base;

[0027] A fourth driving member, the fourth driving member is arranged on the third support frame;

[0028] A third screw rod, the third screw rod is connected with the output shaft of the fourth driving member, the third screw rod is threadedly connected with the moving frame, and the fourth driving member drives the third screw rod to rotate, so as to drive the moving frame to move along the length direction.

[0029] In the moving tray mechanism for the 3D printer, the swinging member comprises:

[0030] A third pulley, the third pulley is rotatably arranged on the moving frame;

[0031] A second transmission belt, one end of the second transmission belt is movably sleeved on the output end of the first driving member, and the other end is movably sleeved on the third pulley;

[0032] A first bearing, the first bearing is inserted into the moving frame;

[0033] A first connecting member, the first connecting member passes through the first bearing, the rocker arm, and is connected to the third pulley, and the rocker arm is sleeved on the first connecting member;

[0034] The first driving member drives the second transmission belt to rotate, so as to drive the third pulley to rotate.

[0035] In the moving tray mechanism for the 3D printer, the moving frame extends along the width direction to form a first support frame, and the first driving member is arranged on the first support frame.

[0036] In the moving tray mechanism for the 3D printer, the rotating member comprises:

[0037] A second bearing, the second bearing is inserted into the rocker arm, and the inner ring of the second bearing is fixedly connected with the rotating disc;

[0038] A fourth pulley, the fourth pulley is sleeved on the lower end of the rotating member;

[0039] A second connecting member, the second connecting member is inserted into the rocker arm;

[0040] A third bearing is arranged on the moving frame, and the second connecting member is arranged on the third bearing;

[0041] A second support is arranged, and the second connecting member passes through the rocker arm and the third bearing in sequence and is connected to the second support;

[0042] A third transmission belt is arranged, one end of the third transmission belt is movably sleeved on the output end of the second driving member, and the other end of the third transmission belt is sleeved on the fourth belt wheel, the second driving member drives the third transmission belt to rotate, and is used for driving the fourth belt wheel to rotate.

[0043] In the moving tray mechanism for the 3D printer, a sensing member is further arranged, and the sensing member comprises:

[0044] A first sensor is arranged opposite to the fourth support and on the base, and the first sensor is used for detecting the position of the fourth support;

[0045] A second sensor is arranged opposite to the moving frame and on the fourth support, and the second sensor is used for detecting the position of the moving frame;

[0046] A first sensing block is formed by the rocker arm extending along the height direction;

[0047] A third sensor is arranged on the moving frame, and the third sensor corresponds to the first sensing block;

[0048] A second sensing block is formed by the fourth belt wheel extending along the length direction;

[0049] A fourth sensor is arranged on the rocker arm, and the fourth sensor corresponds to the second sensing block.

[0050] Compared with the prior art, the movable member is moved along the width direction by the width moving member, the movable member drives the swing member to move along the length direction. The first driving member drives the rocker arm to swing relative to the moving frame. When the rocker arm swings, it drives the rotating member to move synchronously, and the rotating space provides a space for the rotation of the rocker arm. The second driving member drives the rotating disc to rotate relative to the rocker arm. Through the cooperative action of the swing member and the rotating member, the angle of the rotating disc relative to the printing member can be adjusted in real time, the printing surface is always kept horizontal or close to the horizontal state, the newly deposited material is prevented from collapsing due to the action of gravity, so that additional materials are not needed to print the support structure, and the printer can realize the integrated high-precision molding of the internal and external hollow complex workpieces. BRIEF DESCRIPTION OF DRAWINGS

[0051] Figure 1It is a perspective view of a mobile tray mechanism for a 3D printer according to the present application.

[0052] Figure 2 It is a perspective view of a base, a width moving piece and a movable piece according to the present application.

[0053] Figure 3 It is a perspective view of a movable piece, a swing piece and a rotating piece according to the present application.

[0054] Figure 4 It is a sectional view of a movable piece, a swing piece and a rotating piece according to the present application.

[0055] In the figure, 1 is a base; L is a length; W is a width; H is a height; 2 is a width moving piece; 21 is a first support frame; 22 is a first guide shaft; 23 is a third driving piece; 24 is a first screw rod; 25 is a second support frame; 26 is a second guide shaft; 27 is a second screw rod; 28 is a first pulley; 281 is a first transmission belt; 29 is a second pulley; 3 is a movable piece; 31 is a moving frame; 32 is an arc-shaped support; 321 is a first arc-shaped part; 322 is a second arc-shaped part; 33 is a third support frame; 34 is a fourth support frame; 35 is a third guide shaft; 36 is a fourth guide shaft; 37 is a fourth driving piece; 38 is a third screw rod; 39 is a first support; 4 is a swing piece; 41 is a rocker arm; 42 is a first driving piece; 43 is a third pulley; 44 is a second transmission belt; 45 is a first bearing; 46 is a first connecting piece; 5 is a rotating piece; 51 is a rotating disc; 52 is a second driving piece; 53 is a second bearing; 54 is a fourth pulley; 55 is a second connecting piece; 56 is a third bearing; 57 is a second support; 58 is a third transmission belt; 6 is a sensing piece; 61 is a first sensor; 62 is a second sensor; 63 is a first sensing block; 64 is a third sensor; 65 is a second sensing block; 66 is a fourth sensor. DETAILED DESCRIPTION

[0056] The following is a specific embodiment of the present application and further describes the technical solution of the present application in combination with the accompanying drawings, but the present application is not limited to these embodiments.

[0057] As shown in Figures 1 to 4 The mobile tray mechanism for the 3D printer according to the present application comprises:

[0058] The base 1 is provided with a length L, a width W and a height H; the width moving piece 2 is arranged on the base 1 along the width W direction of the base 1; the movable piece 3 is arranged on the width moving piece 2, and the movable piece 3 is provided with a moving frame 31 movably arranged on the movable piece 3, the moving frame 31 extends along the height H direction to form an arc-shaped support 32, the arc-shaped support 32 is provided with a first arc-shaped part 321 and a second arc-shaped part 322 in an arc shape, and a rotating space is formed between the first arc-shaped part 321 and the second arc-shaped part 322; the swing piece 4 is arranged on the moving frame 31, and the swing piece 4 is provided with a rocker arm 41 and a first driving piece 42, the rocker arm 41 is swingably arranged on the moving frame 31, and the first driving piece 42 is arranged on the moving frame 31 and is in transmission connection with the rocker arm 41; the rotating piece 5 is arranged on the swing piece 4, and the rotating piece 5 is provided with a rotating disc 51 and a second driving piece 52, the rotating disc 51 is rotatably arranged on the rocker arm 41, and the second driving piece 52 is arranged on the rocker arm 41 and is in transmission connection with the rotating disc 51.

[0059] As shown in Figure 1 With Figure 2 shown, in operation, the width moving piece 2 moves the movable piece 3 along the width W direction, and the movable piece 3 drives the swing piece 4 to move along the length L direction. The first driving piece 42 drives the rocker arm 41 to swing relative to the moving frame 31; when the rocker arm 41 swings, it drives the rotating piece 5 to move synchronously, and the rotating space provides sufficient activity allowance for the rocker arm 41 to avoid collision with the arc-shaped support 32 when the rocker arm 41 swings, thereby preventing damage to the rocker arm 41 and the arc-shaped support 32. The second driving piece 52 drives the rotating disc 51 to rotate relative to the rocker arm 41. Through the cooperative action of the swing piece 4 and the rotating piece 5, the angle of the rotating disc 51 relative to the printing piece can be adjusted in real time to ensure that the printing surface always remains horizontal or close to horizontal. In this way, when new material is accumulated, the deposited material can support the newly deposited material, avoiding the newly deposited material from collapsing due to gravity, thereby reducing the need for additional support structures and enabling the printer to realize one-piece high-precision molding of internal and external hollow complex workpieces.

[0060] The width moving piece 2 of the scheme comprises: a first support frame 21 arranged on the base 1; a first guide shaft 22 inserted on the first support frame 21; a third driving piece 23 arranged on the first support frame 21; a first lead screw 24 movably arranged on the side of the first guide shaft 22, one end of the first lead screw 24 being connected with the output end of the third driving piece 23; a second support frame 25 arranged on the base 1; a second guide shaft 26 inserted on the second support frame 25; a second lead screw 27 movably arranged on the side of the second guide shaft 26, the second lead screw 27 being threadedly connected with the second support frame 25; a first pulley 28 fixedly sleeved on the first lead screw 24; a second pulley 29 fixedly sleeved on the second lead screw 27; and a first transmission belt 281, one end of the first transmission belt 281 being movably sleeved on the first pulley 28, the other end of the first transmission belt 281 away from the first lead screw 24 being movably sleeved on the second pulley 29, the second pulley 29 being rotatable due to the rotation of the first pulley 28 to drive the first transmission belt 281 to rotate, for driving the second lead screw 27 to rotate.

[0061] In operation, the third driving piece 23 drives the first lead screw 24 to rotate, the first lead screw 24 drives the first pulley 28 to rotate, the first pulley 28 drives the second pulley 29 to rotate through the first transmission belt 281, and the second pulley 29 drives the second lead screw 27 to rotate, so that the first lead screw 24 and the second lead screw 27 rotate synchronously, and further drive the moving piece 3 to move, so that the movement of the moving piece 3 is more stable. Under the guidance of the first guide shaft 22 and the second guide shaft 26, the moving piece 3 moves along the width W direction.

[0062] The moving piece 3 of the scheme comprises: a third support frame 33 movably sleeved on the first guide shaft 22, the first lead screw 24 being threadedly connected with the third support frame 33; a fourth support frame 34 movably sleeved on the second guide shaft 26, the second lead screw 27 being threadedly connected with the fourth support frame 34; a third guide shaft 35, one end of the third guide shaft 35 being inserted on the third support frame 33, and the other end of the third guide shaft 35 being inserted on the fourth support frame 34; a fourth guide shaft 36, one end of the fourth guide shaft 36 being inserted on the third support frame 33, and the other end of the fourth guide shaft 36 being inserted on the fourth support frame 34, the fourth guide shaft being arranged in parallel with the third guide shaft along the length L direction of the base 1; a fourth driving piece 37 arranged on the third support frame 33; and a third lead screw 38 connected with the output shaft of the fourth driving piece 37, the third lead screw 38 being threadedly connected with the moving frame 31, the fourth driving piece 37 driving the third lead screw 38 to rotate, for driving the moving frame 31 to move along the length L direction.

[0063] As Figure 2As shown, in operation, the first screw rod 24 drives the third support frame 33 to move, and the first guide shaft 22 guides the third support frame 33 to move along the width W direction; at the same time, the second screw rod 27 drives the fourth support frame 34 to move, and the second guide shaft 26 guides the fourth support frame 34 to move along the width W direction, so as to ensure that the movable part 3 moves stably along the width W direction. The fourth driving part 37 drives the third screw rod 38 to rotate, and the third screw rod 38 drives the moving frame 31 to move, and under the guidance of the third guide shaft 35 and the fourth guide shaft 36, the moving frame 31 moves along the length L direction.

[0064] The swing part 4 of the scheme comprises: a third belt wheel 43 rotatably arranged on the moving frame 31; a second transmission belt 44, one end of which is movably sleeved on the output end of the first driving part 42, and the other end of which is movably sleeved on the third belt wheel 43; a first bearing 45 inserted on the moving frame 31; a first connecting part 46 passing through the first bearing 45, the rocker arm 41, and connected to the third belt wheel 43, the rocker arm 41 being sleeved on the first connecting part 46; the moving frame 31 extends along the width W direction to form a first support 39, and the first driving part 42 is arranged on the first support 39.

[0065] As shown in the figure, Figure 3 The third driving part 23 drives the second transmission belt 44 to rotate, the second transmission belt 44 drives the third belt wheel 43 to rotate, and the third belt wheel 43 in turn drives the first connecting part 46 and the inner ring of the first bearing 45 to rotate. The first connecting part 46 drives the rocker arm 41 to swing, and the rocker arm 41 in turn drives the rotating part 5 to swing synchronously, so as to change the angle of the rotating disc 51 relative to the printing part.

[0066] The rotating part 5 of the scheme comprises: a second bearing 53 inserted on the rocker arm 41, the inner ring of the second bearing 53 being fixedly connected with the rotating disc 51; a fourth belt wheel 54 sleeved on the lower end of the rotating part 5; a second connecting part 55 inserted on the rocker arm 41; a third bearing 56 inserted on the moving frame 31, and the second connecting part 55 is inserted on the third bearing 56; a second support 57, the second connecting part 55 passing through the rocker arm 41 and the third bearing 56 in sequence and being connected to the second support 57; and a third transmission belt 58, one end of which is movably sleeved on the output end of the second driving part 52, and the other end of which is sleeved on the fourth belt wheel 54, the second driving part 52 driving the third transmission belt 58 to rotate, for driving the fourth belt wheel 54 to rotate.

[0067] As shown in the figure, Figure 3As shown, the first driving member 42 drives the second transmission belt 44 to rotate, the second transmission belt 44 drives the third belt wheel 43 to rotate, the third belt wheel 43 in turn drives the first connecting member 46 and the inner ring of the first bearing 45 to rotate. The first connecting member 46 drives the swing arm 41 to swing, and the swing arm 41 in turn drives the second support 57 and the fourth belt wheel 54 to swing synchronously, so as to ensure that the relative position between the second driving member 52 arranged on the second support 57 and the fourth belt wheel 54 remains unchanged, avoiding the third transmission belt 58 from being wound or knotted. The second driving member 52 drives the third transmission belt 58 to rotate, the third transmission belt 58 drives the fourth belt wheel 54 to rotate, the fourth belt wheel 54 in turn drives the inner ring of the third bearing 56 to rotate, and the inner ring of the third bearing 56 drives the rotating disc 51 to rotate.

[0068] The scheme further comprises a sensing member 6, which comprises: a first sensor 61, the first sensor 61 is opposite to the fourth support 34 and is arranged on the base 1, and the first sensor 61 is used for detecting the position of the fourth support 34; a second sensor 62, the second sensor 62 is opposite to the moving frame 31 and is arranged on the fourth support 34, and the second sensor 62 is used for detecting the position of the moving frame 31; a first sensing block 63, the swing arm 41 extends along the height H direction to form the first sensing block 63; a third sensor 64, the third sensor 64 is arranged on the moving frame 31 and corresponds to the first sensing block 63; a second sensing block 65, the fourth belt wheel 54 extends along the length L direction to form the second sensing block 65; and a fourth sensor 66, the fourth sensor 66 is arranged on the swing arm 41 and corresponds to the second sensing block 65.

[0069] Before the printer prints, the rotating disc 51, the movable member 3 and the swing arm 41 need to be zeroed.

[0070] The first sensor 61 detects the position of the fourth support 34. The first driving member 42 drives the first lead screw 24 to rotate, drives the second lead screw 27 to rotate synchronously, thereby drives the fourth support 34 to move, so that the fourth support 34 is zeroed.

[0071] The second sensor 62 detects the position of the moving frame 31. The second driving member 52 drives the third lead screw 38 to rotate, the third lead screw 38 drives the moving frame 31 to move, so that the moving frame 31 is zeroed, and finally the movable member 3 is zeroed.

[0072] The third sensor 64 detects the position of the first sensing block 63. The third driving member 23 drives the second transmission belt 44 to rotate, the second transmission belt 44 drives the third belt wheel 43 to rotate, the third belt wheel 43 in turn drives the first connecting member 46 and the inner ring of the first bearing 45 to rotate, and the first connecting member 46 drives the swing arm 41 to swing, so that the first sensing block 63 is aligned with the third sensor 64, thereby the swing arm 41 is zeroed.

[0073] The fourth sensor 66 detects the position of the second sensing block 65. The fourth driving member 37 drives the third transmission belt 58 to rotate, the third transmission belt 58 drives the fourth belt wheel 54 to rotate, the fourth belt wheel 54 drives the inner ring of the third bearing 56 to rotate, and the inner ring of the third bearing 56 drives the rotating disc 51 to rotate, so that the second sensing block 65 is aligned with the fourth sensor 66, and the rotating disc 51 is zeroed.

[0074] Through the above steps, it is ensured that all key components return to the preset starting position, and the printing task is ready to start.

[0075] The movable member 3 is driven by the width moving member 2 to move along the width direction W, and the movable member 3 drives the swing member 4 to move along the length direction L. The first driving member 42 drives the rocker arm 41 to swing relative to the moving frame 31, and when the rocker arm 41 swings, it drives the rotating member 5 to move synchronously, and the rotating space provides a space for the rotation of the rocker arm 41. The second driving member 52 drives the rotating disc 51 to rotate relative to the rocker arm 41. Through the cooperation of the swing member 4 and the rotating member 5, the angle of the rotating disc 51 relative to the printing member can be adjusted in real time, so that the printing surface is always kept horizontal or close to horizontal, and the newly deposited material is prevented from collapsing due to gravity, so that additional material is not needed to print a support structure, and the printer can realize one-piece high-precision forming of an internal and external hollow complex workpiece.

[0076] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0077] In addition, in the present application, the description such as "first", "second", "one" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0078] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0079] In addition, the technical solutions of various embodiments of the present application can be combined with each other, but must be based on the fact that a person skilled in the art can implement it, when the combination of technical solutions appears contradictory or cannot be implemented, it should be considered that the combination of such technical solutions does not exist, nor is it within the scope of protection required by the present application.

[0080] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but without deviating from the scope defined by the spirit of the present application.

Claims

1. A moving tray mechanism for a 3D printer, characterized in that, include: A base, the base having a length, width and height; A width-moving component, wherein the width-moving component is disposed on the base along the width direction of the base; The movable component is disposed on the width movable component. The movable component is provided with a movable frame. The movable frame is movably disposed on the movable component. The movable frame extends along the height direction of the base to form an arc-shaped support. The arc-shaped support is provided with a first arc-shaped part and a second arc-shaped part. A rotation space is formed between the first arc-shaped part and the second arc-shaped part. A swinging component is provided on the movable frame. The swinging component is provided with a rocker arm and a first driving component. The rocker arm is swinging on the movable frame. The first driving component is provided on the movable frame and is connected to the rocker arm in a transmission manner. A rotating component is disposed on the swing component. The rotating component is provided with a turntable and a second driving component. The turntable is rotatably disposed on the rocker arm, and the second driving component is disposed on the rocker arm. The second driving component is connected to the turntable in a transmission manner.

2. The moving tray mechanism for a 3D printer as described in claim 1, characterized in that, The width-moving component includes: A first support frame is disposed on the base; A first guide shaft is inserted into the first support frame; A third driving component is disposed on the first support frame; A first lead screw is movably disposed on the side of the first guide shaft, and one end of the first lead screw is connected to the output end of the third drive component. A second support frame is mounted on the base. The second guide shaft is inserted into the second support frame; The second lead screw is movably disposed on the side of the second guide shaft, and the second lead screw is threadedly connected to the second support frame; The first pulley is fixedly sleeved on the first lead screw; The second pulley is fixedly sleeved on the second lead screw; A first transmission belt, one end of which is movably sleeved on the first pulley, and the other end of which is movably sleeved on the second pulley away from the first lead screw. The second pulley can rotate because the first pulley drives the first transmission belt to rotate, thereby driving the second lead screw to rotate.

3. A moving tray mechanism for a 3D printer as described in claim 2, characterized in that, The movable component includes: The third support frame is movably sleeved on the first guide shaft, and the first lead screw is threadedly connected to the third support frame; The fourth support frame is movably sleeved on the second guide shaft, and the second lead screw is threadedly connected to the fourth support frame; The third guide shaft, one end of which is inserted into the third support frame and the other end of which is inserted into the fourth support frame; A fourth guide shaft, one end of which is inserted into the third support frame and the other end of which is inserted into the fourth support frame, the fourth guide shaft and the third guide shaft being arranged parallel to each other along the length direction of the base; The fourth driving component is disposed on the third support frame; The third lead screw is connected to the output shaft of the fourth drive member and is threadedly connected to the moving frame. The fourth drive member drives the third lead screw to rotate, thereby moving the moving frame along the length direction.

4. A moving tray mechanism for a 3D printer as described in claim 1, characterized in that, The swing element includes: The third pulley is rotatably mounted on the movable frame; The second transmission belt has one end movably sleeved on the output end of the first driving member, and the other end movably sleeved on the third pulley. A first bearing is inserted into the movable frame; A first connecting member passes through the first bearing and the rocker arm and is connected to the third pulley; the rocker arm is sleeved on the first connecting member. The first driving component drives the second transmission belt to rotate, which in turn drives the third pulley to rotate.

5. A moving tray mechanism for a 3D printer as described in claim 1, characterized in that, The movable frame extends along the width direction to form a first support, and the first driving member is disposed on the first support.

6. A moving tray mechanism for a 3D printer as described in claim 1, characterized in that, The rotating component includes: The second bearing is inserted into the rocker arm, and the inner ring of the second bearing is fixedly connected to the turntable. The fourth pulley is sleeved on the lower end of the rotating component; The second connector is inserted into the rocker arm; The third bearing is inserted into the movable frame, and the second connecting member is inserted into the third bearing; The second bracket, the second connector passes through the rocker arm and the third bearing in sequence, and is connected to the second bracket; The third transmission belt has one end movably sleeved on the output end of the second driving member, and the other end sleeved on the fourth pulley. The second driving member drives the third transmission belt to rotate, thereby driving the fourth pulley to rotate.

7. A moving tray mechanism for a 3D printer as described in claim 3, characterized in that, It also includes a sensor, which comprises: A first sensor is positioned directly opposite the fourth support frame and mounted on the base. The first sensor is used to detect the position of the fourth support frame. The second sensor is positioned directly opposite the movable frame and mounted on the fourth support frame. The second sensor is used to detect the position of the movable frame. The first sensing block is formed by the rocker arm extending along the height direction; A third sensor is mounted on the movable frame and corresponds to the first sensing block. The second sensing block is formed by the fourth pulley extending along the length direction; A fourth sensor is disposed on the rocker arm and corresponds to the second sensing block.

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