CN220614944U - 3D printing equipment - Google Patents

Abstract

The application provides 3D printing equipment relates to printing equipment technical field. The 3D printing equipment comprises a frame body, a printing head, a Z-axis driving mechanism, a Y-axis driving mechanism and an X-axis driving mechanism; the Z-axis driving mechanism comprises a Z-axis guide rail, a Z-axis sliding block, a Z-axis synchronous belt and a driving assembly; the driving assembly is used for driving the Z-axis synchronous belt to rotate so that the Z-axis synchronous belt drives the Y-axis driving mechanism to move along the Z-axis direction on the Z-axis guide rail; the Y-axis driving mechanism is in sliding fit with the X-axis driving mechanism, and the Y-axis driving mechanism is used for driving the X-axis driving mechanism to move along the Y-axis direction; the printing head is arranged on the X-axis driving mechanism and is driven by the X-axis driving mechanism to move along the X-axis direction. The 3D printing equipment has the advantages that vibration of the Y-axis driving mechanism is small when the Y-axis driving mechanism moves along the Z-axis direction, so that the movement error of the printing head in the Z-axis direction can be reduced, and the printing precision of a product is improved.

Description

3D printing equipment

Technical Field

The application relates to the technical field of printing equipment, in particular to 3D printing equipment.

Background

3D printing is a technique for constructing an object by means of layer-by-layer printing using an bondable material such as powdered metal or plastic based on a digital model file. At present, the common printing mode of 3D printing equipment is that under the combined action of X axle actuating mechanism and Y axle actuating mechanism, drive the printer head and remove in the horizontal direction, simultaneously, Z axle actuating mechanism drives the printer head and goes up and down in vertical direction, and then realizes the layer by layer printing of three-dimensional product.

The existing Z-axis driving mechanism generally uses a motor to drive the screw rod to rotate forwards or reversely so as to drive a nut sleeved on the screw rod to ascend or descend, and then the nut drives the printing head to ascend or descend. However, such a Z-axis driving mechanism often causes a large vibration, which causes an increase in error of the print head in the Z-axis direction, affecting the printing accuracy of the product.

Disclosure of Invention

In order to overcome the defects in the prior art, the application provides 3D printing equipment.

The application provides the following technical scheme:

A3D printing device comprises a frame body, a printing head, a Z-axis driving mechanism, a Y-axis driving mechanism and an X-axis driving mechanism; the Z-axis driving mechanism comprises a Z-axis guide rail, a Z-axis sliding block, a Z-axis synchronous belt and a driving assembly, the Z-axis guide rail is arranged on the frame body, the Y-axis driving mechanism is in sliding fit with the Z-axis guide rail through the Z-axis sliding block, the Z-axis synchronous belt is connected with the Y-axis driving mechanism, and the driving assembly is used for driving the Z-axis synchronous belt to rotate so that the Z-axis synchronous belt drives the Y-axis driving mechanism to move on the Z-axis guide rail along the Z-axis direction; the Y-axis driving mechanism is in sliding fit with the X-axis driving mechanism, and the Y-axis driving mechanism is used for driving the X-axis driving mechanism to move along the Y-axis direction; the printing head is arranged on the X-axis driving mechanism and moves along the X-axis direction under the driving of the X-axis driving mechanism.

In one possible implementation, the Y-axis driving mechanism includes a Y-axis guide rail, a connecting piece, a Y-axis synchronous belt, and a Y-axis slider; the Y-axis guide rail is fixedly connected with the Z-axis sliding block; the connecting piece is arranged on the Y-axis guide rail and is connected with the Z-axis synchronous belt; the Y-axis synchronous belt is rotationally arranged on the connecting piece; the Y-axis sliding block is slidably arranged on the Y-axis guide rail and is fixedly connected with the Y-axis synchronous belt and the X-axis driving mechanism respectively.

In one possible embodiment, one side of the connecting piece is fixedly connected with the Y-axis guide rail; the Z-axis synchronous belt is provided with a notch, and two ends of the notch are respectively and fixedly connected with the top and the bottom of the connecting piece.

In one possible embodiment, the Y-axis drive mechanism further comprises a support and a Y-axis stop; the supporting piece is arranged on the Y-axis sliding block, the Y-axis limiting piece is arranged on the Y-axis guide rail, and the supporting piece is matched with the Y-axis limiting piece so as to limit the movement of the Y-axis sliding block on the Y-axis guide rail.

In one possible implementation, the X-axis driving mechanism includes an X-axis guide rail, an X-axis motor, an X-axis stopper, and an X-axis timing belt; the X-axis guide rail is fixedly connected with the Y-axis sliding block; the X-axis motor and the X-axis limiting piece are respectively arranged at two ends of the X-axis guide rail; the X-axis synchronous belt is respectively connected with the X-axis motor and the X-axis limiting piece in a rotating way; the printing head is movably arranged on the X-axis guide rail and is fixedly connected with the X-axis synchronous belt.

In one possible embodiment, the 3D printing device further comprises a slider; the sliding piece is fixed on the printing head, is slidingly arranged on the X-axis guide rail and is fixedly connected with the X-axis synchronous belt.

In one possible embodiment, the drive assembly includes a first mount, a second mount, a drive belt, and a drive wheel set; the first fixing piece and the second fixing piece are arranged on the frame body; the driving belt is respectively connected with the first fixing piece and the second fixing piece in a rotating way; the Z-axis synchronous belt is rotationally connected with the first fixing piece or the second fixing piece; the driving wheel set is used for driving the driving belt to rotate, so that the driving belt drives the Z-axis synchronous belt to rotate through the first fixing piece or the second fixing piece.

In one possible embodiment, the first fixing member includes a fixing plate, a rotating shaft, and a bearing; the fixed plate is fixed on the frame body, and the rotating shaft is rotationally arranged on the fixed plate through the bearing; the driving belt is sleeved at one end of the rotating shaft, and the Z-axis synchronous belt is sleeved at one end of the rotating shaft away from the driving belt.

In one possible embodiment, the driving wheel set comprises one driving wheel and two tension wheels; the driving belt is wound on the driving wheel, and the two tension wheels are respectively arranged on two sides of the driving wheel and are propped against the driving belt.

In one possible embodiment, the 3D printing device further comprises a control panel; the control panel is arranged on the frame body and is respectively and electrically connected with the Z-axis driving mechanism, the Y-axis driving mechanism and the X-axis driving mechanism.

Compared with the prior art, the beneficial effect of this application:

according to the 3D printing equipment, the X-axis driving mechanism can drive the printing head to move along the X-axis direction; the Y-axis driving mechanism can drive the X-axis driving mechanism to move along the Y-axis direction, so that the X-axis driving mechanism drives the printing head to move along the Y-axis direction; the driving assembly can drive the Z-axis synchronous belt to rotate, so that the Z-axis synchronous belt drives the Y-axis driving mechanism to move along the Z-axis direction on the Z-axis guide rail through the Z-axis sliding block, and then the printing head is driven to move along the Z-axis direction. The 3D printing equipment of this application, Z axle actuating mechanism drive Y axle actuating mechanism is along the mode that Z axle direction removed, compares in lead screw and nut complex mode, and the vibration when Y axle actuating mechanism removed along the Z axle direction is less, and then can reduce the printer head and remove the error in Z axle direction, improves the printing accuracy of product.

In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic structural diagram of a 3D printing apparatus according to an embodiment of the present application;

FIG. 2 is a schematic view of a part of a 3D printing apparatus according to another embodiment of the present application;

FIG. 3 is a schematic diagram of a driving assembly according to an embodiment of the present application;

fig. 4 shows a schematic structural view of an X-axis driving mechanism and a Y-axis driving mechanism according to an embodiment of the present application.

Description of main reference numerals:

100-frame body; 110-a workbench; 111-carrier plates; 112-a heater; 120-universal wheels; 130-an inductor; 200-printheads; 210-a slider; a 300-X axis driving mechanism; 310-X axis guide rail; 320-X axis motor; 330-X axis limiting piece; 340-X axis synchronous belt; 400-Y axis driving mechanism; 410-Y axis guide rail; 420-Y axis sliding block; 421-a holding member; 430-a connector; 440-Y axis synchronous belt; 450-Y axis motor; 460-Y axis limiting piece; 500-Z axis driving mechanism; 510-Z axis guide rail; a 520-Z axis slider; 530-Z axis synchronous belt; 540-a drive assembly; 541-a first mount; 542-a second mount; 543-driving belt; 544-drive wheel set; 545-a pinch roller; 550-Z axis limiting piece; 600-control panel.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Example 1

Referring to fig. 1 to 4, an embodiment of the present application provides a 3D printing apparatus. The 3D printing device is used for printing three-dimensional products layer by layer.

Referring to fig. 1, the 3D printing apparatus includes a frame 100, a printhead 200, a Z-axis driving mechanism 500, a Y-axis driving mechanism 400, and an X-axis driving mechanism 300.

The Z-axis driving mechanism 500 includes a Z-axis guide rail 510, a Z-axis slider 520, a Z-axis synchronous belt 530, and a driving assembly 540; the Z-axis guide rail 510 is disposed on a column of the frame 100, the Y-axis driving mechanism 400 is slidably engaged with the Z-axis guide rail 510 through the Z-axis slider 520, the Z-axis synchronous belt 530 is connected with the Y-axis driving mechanism 400, and the driving assembly 540 is configured to drive the Z-axis synchronous belt 530 to rotate, so that the Z-axis synchronous belt 530 drives the Y-axis driving mechanism 400 to move along the Z-axis direction on the Z-axis guide rail 510.

The Y-axis driving mechanism 400 is in sliding fit with the X-axis driving mechanism 300, and the Y-axis driving mechanism 400 is used for driving the X-axis driving mechanism 300 to move along the Y-axis direction.

The print head 200 is disposed on the X-axis driving mechanism 300 and is driven by the X-axis driving mechanism 300 to move in the X-axis direction.

When the 3D printing apparatus is in use, the X-axis driving mechanism 300 can drive the printhead 200 to move along the X-axis direction; the Y-axis driving mechanism 400 can drive the X-axis driving mechanism 300 to move along the Y-axis direction, so that the X-axis driving mechanism 300 drives the printhead 200 to move along the Y-axis direction; the Z-axis driving mechanism 500 may drive the Y-axis driving mechanism 400 to move along the Z-axis direction, and when the Y-axis driving mechanism 400 moves along the Z-axis direction, the X-axis driving mechanism 300 may be driven to move along the Z-axis direction, so that the print head 200 may move along the Z-axis direction. Under the combined action of the X-axis driving mechanism 300, the Y-axis driving mechanism 400 and the Z-axis driving mechanism 500, the printing head 200 can eject the viscous printing material at the corresponding position, so as to realize the layer-by-layer printing of the stereoscopic product.

In this embodiment, the X-axis direction and the Y-axis direction are directions on the same horizontal plane, and the X-axis direction is perpendicular to the Y-axis direction; the Z-axis direction is a vertical direction and is perpendicular to the X-axis direction and the Y-axis direction respectively.

The frame 100 comprises four upright posts, a workbench 110 and a top bracket; four the stand is located workstation 110's four corners, four the one end of stand sets up subaerial, four the other end of stand is used for supporting the top support, the length direction of stand is parallel with the Z axle direction.

The printhead 200 is movably disposed above the platen 110.

In some embodiments, the table 110 is provided with a carrying board 111, and the carrying board 111 is used for carrying the printed product during the printing process.

In some embodiments, the frame 100 is a rectangular frame; in other embodiments, the frame 100 may also be a square frame.

The Z-axis guide rail 510 is fixed to the upright post of the frame 100 by welding, and the extending direction of the Z-axis guide rail 510 is parallel to the Z-axis direction. The Z-axis slider 520 is slidably disposed on the Z-axis guide rail 510.

As shown in fig. 2, the Y-axis driving mechanism 400 has a Y-axis guide 410 and a connecting member 430, and the connecting member 430 is fixed to the Y-axis guide 410; the end of the Y-axis guide rail 410 is fixedly connected with the Z-axis slider 520, and the Z-axis synchronous belt 530 is connected with the connector 430. The driving assembly 540 can drive the Z-axis synchronous belt 530 to rotate, and the Z-axis synchronous belt 530 drives the Y-axis guide rail 410 through the connecting piece 430 to move along the Z-axis direction on the Z-axis guide rail 510.

In some embodiments, a mounting plate is provided at the top of the upright of the frame 100, a fixing column is provided on the mounting plate, one end of the Z-axis synchronous belt 530 is sleeved on the fixing column, and the other end passes through the workbench 110 and is rotationally connected with the driving assembly 540.

In some embodiments, one side of the connector 430 is fixedly coupled to the Y-axis guide rail 410; a notch is provided on the Z-axis synchronous belt 530, and two ends of the notch are respectively and fixedly connected with the top and the bottom of the connecting piece 430; the driving assembly 540 can drive the Z-axis synchronous belt 530 to rotate clockwise or counterclockwise, so that the Z-axis synchronous belt 530 drives the connecting piece 430 to rise or fall along the Z-axis direction, and further drives the Y-axis guide rail 410 to rise or fall along the Z-axis direction.

In some embodiments, the Z-axis drive mechanism 500 further includes a Z-axis stop 550; the Z-axis limiting member 550 is disposed at one end of the Z-axis guide rail 510 away from the workbench 110; the Z-axis limiting member 550 is configured to limit the height of the Y-axis guide rail 410 along the Z-axis direction, so as to avoid collision between the Y-axis guide rail 410 and the frame 100 during the working process.

In some embodiments, the Z-axis drive mechanism 500 includes two of the Z-axis guide rails 510 and two of the Z-axis sliders 520; the two opposite sides of the upright posts are respectively provided with the Z-axis guide rail 510, the two Z-axis sliding blocks 520 are respectively and slidably arranged on the corresponding Z-axis guide rails 510, and two ends of the Y-axis guide rails 410 are respectively and fixedly connected with the two Z-axis sliding blocks 520; when the driving assembly 540 drives the Z-axis synchronous belt 530 to rotate, the two sets of Z-axis guide rails 510 and the Z-axis sliding block 520 cooperate to effectively improve the stability of the Y-axis guide rail 410 during movement.

Referring to fig. 3, the driving assembly 540 includes a first fixing member 541, a second fixing member 542, a driving belt 543, and a driving wheel set 544; the first fixing member 541 and the second fixing member 542 are disposed at the bottom of the table 110, and the driving belt 543 is simultaneously sleeved on the first fixing member 541 and the second fixing member 542; the Z-axis synchronous belt 530 is rotatably connected with the first fixing member 541 or the second fixing member 542; the driving wheel set 544 can drive the driving belt 543 to rotate, so that the driving belt 543 drives the Z-axis synchronous belt 530 to rotate through the first fixing member 541 or the second fixing member 542.

In some embodiments, the first fixing member 541 includes a fixing plate, a rotating shaft, and a bearing; the fixing plate is fixed at the bottom of the workbench 110, and the rotating shaft is rotatably arranged on the fixing plate through the bearing; the driving belt 543 is sleeved at one end of the rotating shaft, and the Z-axis synchronous belt 530 is sleeved at one end of the rotating shaft far away from the driving belt 543.

When the driving wheel set 544 drives the driving belt 543 to rotate, the driving belt 543 can drive the rotating shaft to rotate, so that the rotating shaft drives the Z-axis synchronous belt 530 to rotate.

In some embodiments, baffles are disposed at both ends of the rotating shaft, and the baffles are used to prevent the driving belt 543 and the Z-axis synchronous belt 530 from falling off the rotating shaft.

The second fixing member 542 has the same structure as the first fixing member 541; the first fixing member 541 and the second fixing member 542 are respectively disposed at two ends of the same side of the table 110.

In some embodiments, the drive wheel set 544 includes one drive wheel and two tension wheels; the driving wheel and the two tension wheels are arranged in a 'delta' shape, the driving belt 543 is wound on the driving wheel, the two tension wheels are respectively arranged on two sides of the driving wheel and are propped against the driving belt 543, the driving wheel is used for driving the driving belt 543 to rotate, and the two tension wheels are used for limiting the movement of the driving belt 543.

The driving assembly 540 further includes a driving motor (not shown), and an output end of the driving motor is connected to the driving wheel, and the driving motor is used for driving the driving wheel to rotate.

In some embodiments, the driving assembly 540 further includes a pinch roller 545, the pinch roller 545 is disposed at the bottom of the workbench 110 by a mounting plate, and the pinch roller 545 abuts against the driving belt 543 to adjust tightness of the driving belt 543.

In some embodiments, the Z-axis driving mechanism 500 includes two Z-axis synchronous belts 530 and two connecting pieces 430, the two connecting pieces 430 are respectively fixed at two ends of the Y-axis guide rail 410, and the two Z-axis synchronous belts 530 are respectively connected with the corresponding connecting pieces 430; the first fixing member 541 and the second fixing member 542 can drive the corresponding Z-axis synchronous belt 530 to rotate, so as to further improve the stability of the Y-axis guide rail 410 during movement.

It should be noted that the rotation directions of the two Z-axis synchronous belts 530 are the same, and the two Z-axis synchronous belts rotate synchronously.

Referring to fig. 1 to 4, the Y-axis driving mechanism 400 includes a Y-axis guide rail 410, a Y-axis slider 420, a Y-axis synchronous belt 440, a Y-axis motor 450, and two connectors 430; the two connecting pieces 430 are respectively arranged at two ends of the Y-axis guide rail 410, the Y-axis synchronous belt 440 is simultaneously sleeved on the two connecting pieces 430, and the Y-axis sliding block 420 is slidingly arranged on the Y-axis guide rail 410 and is respectively fixedly connected with the Y-axis synchronous belt 440 and the X-axis driving mechanism 300; the Y-axis motor 450 is used for driving the Y-axis synchronous belt 440 to rotate, so that the Y-axis synchronous belt 440 drives the Y-axis sliding block 420 to move along the Y-axis direction on the Y-axis guide rail 410. And further drives the X-axis driving mechanism 300 to move along the Y-axis direction.

The extending direction of the Y-axis guide rail 410 is parallel to the Y-axis direction.

In some embodiments, the Y-axis slider 420 is provided with a supporting member 421, the Y-axis guide rail 410 is provided with a Y-axis limiting member 460, and the supporting member 421 can be supported on the Y-axis limiting member 460 to limit the moving distance of the X-axis driving mechanism 300 along the Y-axis direction.

The X-axis driving mechanism 300 includes an X-axis guide rail 310, an X-axis motor 320, an X-axis stopper 330, and an X-axis timing belt 340; one end of the X-axis guide rail 310 is fixedly connected with the Y-axis slider 420; the X-axis motor 320 and the X-axis limiting member 330 are respectively disposed at two ends of the X-axis guide rail 310; the X-axis synchronous belt 340 is sleeved on the X-axis motor 320 and the X-axis limiting member 330 at the same time, the X-axis synchronous belt 340 is connected with the printing head 200, and the printing head 200 is slidingly disposed on the X-axis guide rail 310; the X-axis motor 320 is configured to drive the X-axis synchronous belt 340 to rotate, so that the X-axis synchronous belt 340 drives the print head 200 to move along the X-axis direction on the X-axis guide rail 310.

The extending direction of the X-axis guide rail 310 is parallel to the X-axis direction.

In some embodiments, the 3D printing apparatus further includes a slider 210, where the slider 210 is fixedly connected to the housing of the printhead 200, and the slider 210 is slidably disposed on the X-axis guide rail 310 and is fixedly connected to the X-axis synchronous belt 340.

In some embodiments, the X-axis limiting member 330 is provided with a second fixing column, one end of the X-axis synchronous belt is sleeved on the second fixing column, and the other end is sleeved on the output shaft of the X-axis motor 320. The X-axis stopper 330 cooperates with the X-axis motor 320 to limit the moving distance of the printhead 200 in the X-axis direction.

In some embodiments, the 3D printing apparatus further includes a control panel 600, the control panel 600 is disposed on top of the frame 100, and the control panel 600 is electrically connected to the driving motors of the X-axis motor 320, the Y-axis motor 450 and the driving assembly 540, respectively; the control panel 600 is used for controlling the X-axis driving mechanism 300, the Y-axis driving mechanism 400 and the Z-axis driving mechanism 500 to work, so that the print head 200 prints the stereoscopic product layer by layer.

A storage bin is arranged in the control panel 600, and is used for storing printing materials, and the storage bin is connected with the heater 112 on the workbench 110 through a pipeline (not shown); the heater 112 is connected to the printhead 200 via a feed line (not shown); the storage bin can continuously supply printing materials into the heater 112, and the heater 112 can convey the heated printing materials into the printing head 200 through the conveying pipe.

In some embodiments, universal wheels 120 are further provided at the bottom of the upright of the frame 100.

In some embodiments, a cover glass (not shown) is mounted on the outer side of the frame 100, where a working door (not shown) is provided on one of the valve cover glasses, and an operator can open the working door to repair the components in the frame 100.

In some embodiments, the two uprights adjacent to the work gate are each provided with an inductor 130; when the work door is opened, the sensor 130 can sense solid impurities in the air and give out a buzzing alarm to prevent the solid impurities from entering the inside of the frame 100 through the work door.

In the 3D printing apparatus provided in this embodiment, the X-axis driving mechanism 300 is capable of driving the printhead 200 to move along the X-axis direction; the Y-axis driving mechanism 400 can drive the X-axis driving mechanism 300 to move along the Y-axis direction, so that the X-axis driving mechanism 300 drives the printhead 200 to move along the Y-axis direction; the driving assembly 540 can drive the Z-axis synchronous belt 530 to rotate, so that the Z-axis synchronous belt 530 drives the Y-axis driving mechanism 400 to move along the Z-axis direction on the Z-axis guide rail 510 via the Z-axis slider 520, and further drives the print head 200 to move along the Z-axis direction. The 3D printing equipment of this application, Z axle actuating mechanism 500 drive Y axle actuating mechanism 400 is along the mode that Z axle direction removed, compare in lead screw and nut complex mode, vibration when Y axle actuating mechanism 400 removes along the Z axle direction is less, and then can reduce the printer head 200 is at the ascending movement error of Z axle, improves the printing precision of product.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (7)

1. The 3D printing equipment is characterized by comprising a frame body, a printing head, a Z-axis driving mechanism, a Y-axis driving mechanism and an X-axis driving mechanism; the Z-axis driving mechanism comprises a Z-axis guide rail, a Z-axis sliding block, a Z-axis synchronous belt and a driving assembly, the Z-axis guide rail is arranged on the frame body, the Y-axis driving mechanism is in sliding fit with the Z-axis guide rail through the Z-axis sliding block, the Z-axis synchronous belt is connected with the Y-axis driving mechanism, and the driving assembly is used for driving the Z-axis synchronous belt to rotate so that the Z-axis synchronous belt drives the Y-axis driving mechanism to move on the Z-axis guide rail along the Z-axis direction; the Y-axis driving mechanism is in sliding fit with the X-axis driving mechanism, and the Y-axis driving mechanism is used for driving the X-axis driving mechanism to move along the Y-axis direction; the printing head is arranged on the X-axis driving mechanism and moves along the X-axis direction under the driving of the X-axis driving mechanism;

the Y-axis driving mechanism comprises a Y-axis guide rail, a connecting piece, a Y-axis synchronous belt and a Y-axis sliding block; the Y-axis guide rail is fixedly connected with the Z-axis sliding block; the connecting piece is arranged on the Y-axis guide rail and is connected with the Z-axis synchronous belt; the Y-axis synchronous belt is rotationally arranged on the connecting piece; the Y-axis sliding block is arranged on the Y-axis guide rail in a sliding manner and is fixedly connected with the Y-axis synchronous belt and the X-axis driving mechanism respectively;

one side of the connecting piece is fixedly connected with the Y-axis guide rail; a notch part is arranged on the Z-axis synchronous belt, and two ends of the notch part are fixedly connected with the top and the bottom of the connecting piece respectively;

the driving assembly comprises a first fixing piece, a second fixing piece, a driving belt and a driving wheel set; the first fixing piece and the second fixing piece are arranged on the frame body; the driving belt is respectively connected with the first fixing piece and the second fixing piece in a rotating way; the Z-axis synchronous belt is rotationally connected with the first fixing piece or the second fixing piece; the driving wheel set is used for driving the driving belt to rotate, so that the driving belt drives the Z-axis synchronous belt to rotate through the first fixing piece or the second fixing piece.

2. The 3D printing apparatus of claim 1, wherein the Y-axis drive mechanism further comprises a holder and a Y-axis limiter; the supporting piece is arranged on the Y-axis sliding block, the Y-axis limiting piece is arranged on the Y-axis guide rail, and the supporting piece is matched with the Y-axis limiting piece so as to limit the movement of the Y-axis sliding block on the Y-axis guide rail.

3. The 3D printing apparatus according to claim 1 or 2, wherein the X-axis driving mechanism includes an X-axis guide rail, an X-axis motor, an X-axis stopper, and an X-axis timing belt; the X-axis guide rail is fixedly connected with the Y-axis sliding block; the X-axis motor and the X-axis limiting piece are respectively arranged at two ends of the X-axis guide rail; the X-axis synchronous belt is respectively connected with the X-axis motor and the X-axis limiting piece in a rotating way; the printing head is movably arranged on the X-axis guide rail and is fixedly connected with the X-axis synchronous belt.

4. The 3D printing apparatus of claim 3, wherein the 3D printing apparatus further comprises a slider; the sliding piece is fixed on the printing head, is slidingly arranged on the X-axis guide rail and is fixedly connected with the X-axis synchronous belt.

5. The 3D printing apparatus of claim 1, wherein the first fixture comprises a fixed plate, a rotating shaft, and a bearing; the fixed plate is fixed on the frame body, and the rotating shaft is rotationally arranged on the fixed plate through the bearing; the driving belt is sleeved at one end of the rotating shaft, and the Z-axis synchronous belt is sleeved at one end of the rotating shaft away from the driving belt.

6. The 3D printing apparatus of claim 1, wherein the drive wheel set comprises one drive wheel and two tension wheels; the driving belt is wound on the driving wheel, and the two tension wheels are respectively arranged on two sides of the driving wheel and are propped against the driving belt.

7. The 3D printing device of claim 1, wherein the 3D printing device further comprises a control panel; the control panel is arranged on the frame body and is respectively and electrically connected with the Z-axis driving mechanism, the Y-axis driving mechanism and the X-axis driving mechanism.