An automatic unloading printing system

Abstract

The application provides an automatic unloading printing system, comprising: a printing unit, comprising a plurality of printers, each of which is provided with a first conveyor belt, the first conveyor belt is used for carrying a printing model and transmitting the printed printing model along a first direction; a conveying unit, comprising at least one second conveyor belt, the second conveyor belt is communicated with the plurality of first conveyor belts, and is used for transmitting the printing model transmitted by the first conveyor belt along a second direction; a transfer unit, arranged between the second conveyor belt and the plurality of first conveyor belts, used for adjusting the transmission direction of the printing model from the first direction to the second direction, so that the printing model is transmitted on the second conveyor belt along the second direction; the application can realize the simultaneous work of multiple printers, automatically unload the completed printing model in time, and improve the overall working efficiency of the printing system.

Description

Technical Field

[0001] This application belongs to the field of 3D printing technology, specifically relating to an automatic feeding and printing system. Background Technology

[0002] FDM (Fused Deposition Modeling) is currently the most widely used 3D printing technology. 3D printers using FDM technology use linear filaments, which are melted and deposited on a work platform to form a shape. It is now widely used in aerospace, military, automotive, home appliance, biomedical and other fields, and has broad development prospects.

[0003] However, 3D printing is relatively slow. For situations where the same product needs to be mass-produced, a single printer can only print one product at a time, which is inefficient. If a single printer malfunctions, such as a clogged nozzle or a motor failure, the entire printing process will be forced to stop. Furthermore, some complex 3D printed products require a combination of multiple materials or printing processes to complete. A single printer can usually only support a limited number of materials and printing processes, making it difficult to complete such complex tasks independently. Utility Model Content

[0004] This application provides an automatic feeding printing system that enables multiple printers to work simultaneously, automatically feeding completed printing models in a timely manner, thereby improving the overall working efficiency of the printing system.

[0005] To address the aforementioned technical problems, this application provides an automatic feeding and printing system, comprising:

[0006] The printing unit includes several printers, each printer having a first conveyor belt. The first conveyor belt is used to carry the printing model and to transport the printed model along a first direction.

[0007] The conveying unit includes at least one second conveyor belt, which is connected to several first conveyor belts and is used to convey the printed model conveyed by the first conveyor belts along a second direction.

[0008] A transfer unit is located between the second conveyor belt and several of the first conveyor belts, and is used to adjust the transmission direction of the printed model from the first direction to the second direction so that the printed model is transmitted along the second direction on the second conveyor belt.

[0009] As a further improvement to this application, the transfer unit includes a transfer platform disposed on the second conveyor belt;

[0010] The transfer platform is equipped with a transfer transmission component and a sensor for detecting whether a printed model exists on the transfer platform. The bottom of the transfer platform is equipped with a drive component for driving the transfer platform to rotate.

[0011] As a further improvement of this application, the transfer platform is also provided with a blocking component, which includes a blocking plate and a blocking cylinder that is pulsatorically connected to the blocking plate.

[0012] The baffle is configured to block the printed model being transported along the first direction, so that the printed model remains stationary on the transfer platform.

[0013] As a further improvement of this application, the first conveyor belt is set higher than the second conveyor belt, and a lifting component is also provided at the bottom of the transfer platform to move the transfer platform to a height adapted to the first conveyor belt, and to move the transfer platform and the printed model on the transfer platform to a height adapted to the second conveyor belt.

[0014] As a further improvement of this application, the number of the second conveyor belts is two, the two second conveyor belts are arranged in parallel and spaced apart, and a plurality of the printers are arranged between the two second conveyor belts along the second direction;

[0015] The inlet and outlet of each printer are connected, and the inlet and outlet of each printer are connected to the second conveyor belt at the adjacent position.

[0016] As a further improvement of this application, the transfer unit includes a third conveyor belt with a bent structure, one end of the third conveyor belt being connected to the first conveyor belt and the other end of the third conveyor belt being connected to the second conveyor belt, so as to guide the printed model from the first conveyor belt to the second conveyor belt via the third conveyor belt.

[0017] As a further improvement of this application, each of the printers' first conveyor belts is connected to a corresponding third conveyor belt, and a plurality of the third conveyor belts are connected to the second conveyor belt.

[0018] As a further improvement of this application, flexible protective plates are provided on both sides of the second conveyor belt, and the speed of the second conveyor belt is less than the speed of the third conveyor belt.

[0019] As a further improvement of this application, the transfer unit includes a plurality of gripping devices disposed between the first conveyor belt and the second conveyor belt, the gripping devices being used to grip the printed model on the first conveyor belt onto the second conveyor belt.

[0020] As a further improvement of this application, the transfer unit also includes a plurality of collection platforms connected to the first conveyor belt. The collection platforms are provided with detection devices for detecting whether there is a printed model on the collection platform. The gripping device is used to grip the printed model on the collection platform onto the second conveyor belt.

[0021] The automatic feeding and printing system provided in this application places a transfer unit between the second conveyor belt and several first conveyor belts. The transfer unit adjusts the transmission direction of the printing model from the first direction to the second direction, so that the printing model is transmitted along the second direction on the second conveyor belt. This allows more printing tasks to be completed in a short time, improving overall work efficiency. Moreover, this setting can make better use of space, avoiding the use of more complex and space-consuming layout structures. It is also convenient to collect and transmit multiple printing models to subsequent processing equipment, making the entire production process smoother and the connection between each link closer, effectively improving printing efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the printer structure in the automatic feeding and printing system provided in the embodiments of this application;

[0024] Figure 2 This is a schematic diagram of the structure of the first conveyor belt in the automatic feeding and printing system provided in the embodiments of this application;

[0025] Figure 3 A first embodiment of the transfer unit in the automatic feeding and printing system provided in this application is shown in the figure.

[0026] Figure 4 A second embodiment of the transfer unit in the automatic feeding and printing system provided in this application is shown in the figure;

[0027] Figure 5 A third embodiment of the transfer unit in the automatic feeding and printing system provided in this application is shown in the figure.

[0028] Figure 6 A first embodiment of the printing unit in the automatic feeding and printing system provided in this application is shown in the figure.

[0029] Figure 7A second embodiment of the printing unit in the automatic feeding and printing system provided in this application is shown in the figure;

[0030] Figure 8 A third embodiment of the printing unit in the automatic feeding and printing system provided in this application is shown in the figure;

[0031] Figure 9 A fourth embodiment of the printing unit in the automatic feeding and printing system provided in this application is shown in the figure.

[0032] Explanation of reference numerals in the attached figures:

[0033] 10-Printing unit; 11-Printer; 12-First conveyor belt; 13-Inlet; 14-Outlet;

[0034] 20 - Conveying unit; 21 - Second conveyor belt; 211 - Second sub-conveyor belt; 22 - Protective plate;

[0035] 30-Transfer unit; 31-Transfer platform; 32-Transfer transmission component; 33-Blocking component; 331-Blocking plate; 332-Blocking cylinder; 34-Third conveyor belt; 35-Clamping device; 36-Collection platform. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0037] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0038] To make the description of this disclosure more detailed and complete, illustrative descriptions of the implementation methods and specific embodiments of this application are provided below; however, this is not the only form of implementing or utilizing the specific embodiments of this application. The implementation methods cover the features of multiple specific embodiments and the method steps and their order for constructing and operating these specific embodiments. However, other specific embodiments may also be used to achieve the same or equivalent functions and step sequences.

[0039] Please refer to Figures 1-9This application provides an automatic feeding printing system that enables multiple printers to work simultaneously, automatically feeding completed printing models in a timely manner, thus improving the overall efficiency of the printing system. Please refer to... Figure 1 This is a schematic diagram of the printer structure in the automatic feeding and printing system provided in this application embodiment. The automatic feeding and printing system provided in this application includes a printing unit 10, a conveying unit 20, and a transfer unit 30.

[0040] As an optional implementation method, please refer to Figure 2 This is a schematic diagram of the structure of the first conveyor belt in the automatic feeding and printing system provided in this application embodiment. The printing unit 10 includes a plurality of printers 11, and each printer 11 is provided with a first conveyor belt 12. This application uses the first conveyor belt 12 to carry the printing model. After printing is completed, the printed model is transported along the first direction, thereby realizing the effect of multiple printers 11 printing at the same time, which significantly increases the printing output per unit time. Moreover, for complex products or large models, the printing time may be very long. Printing a large model may take several days. However, using multiple printers 11 to print different parts of the model at the same time and then assembling them can greatly shorten the cycle of the entire project. This parallel printing method can complete more printing tasks in a short time and improve the overall work efficiency.

[0041] Furthermore, the aforementioned conveying unit 20 includes at least one second conveyor belt 21, which is connected to several first conveyor belts 12 and is used to convey the printed models transported by the first conveyor belts 12 along a second direction, thereby gathering the printed models transported by several printers 11 into the second conveyor belt 21.

[0042] The aforementioned transfer unit 30 is located between the second conveyor belt 21 and several first conveyor belts 12. It is used to adjust the transmission direction of the printed model from the first direction to the second direction, so that the printed model is transmitted along the second direction on the second conveyor belt 21. By setting the transfer unit 30 to adjust the transmission direction of the printed model, space can be better utilized, avoiding the use of a more complex and space-consuming layout structure. It is also convenient to collect and transmit multiple printed models to subsequent processing equipment, making the entire production process smoother and the connection between each link closer, effectively improving printing efficiency.

[0043] It is understood that the first direction and the second direction can be perpendicular or inclined. In principle, the first direction is different from the second direction, and the first direction and the second direction are not parallel or coincident. This application does not impose any further restrictions on the specific setting of the first direction and the second direction.

[0044] As an optional implementation method, please refer to Figure 3 This is a first embodiment of the transfer unit in the automatic feeding and printing system provided in this application. The transfer unit 30 includes a transfer platform 31 disposed on the second conveyor belt 21. The transfer platform 31 is provided with a transfer transmission component 32 and a sensor (not shown in the figure) for detecting whether there is a printing model on the transfer platform 31. Furthermore, a drive component (not shown in the figure) for driving the transfer platform 31 to rotate is disposed at the bottom of the transfer platform 31.

[0045] It is understandable that, taking a transfer platform 31 as an example, when the transfer platform 31 is set on the second conveyor belt 21, it can divide the second conveyor belt 21 into two parts. That is, the second sub-conveyor belts 211 of these two parts are set on both sides of the transfer platform 31 along the second direction, and each of them carries out transmission along the second direction. Similarly, when the second conveyor belt 21 is set with more transfer platforms 31, the second conveyor belt 21 will also be divided into more second sub-conveyor belts 211, and several second sub-conveyor belts 211 all satisfy the requirement of carrying out transmission along the second direction.

[0046] As for the number of the aforementioned transfer platforms 31 and the number of the aforementioned second sub-conveyor belts 211, they can be adjusted accordingly based on the actual number of printers 11, and this application does not impose any restrictions on this.

[0047] Furthermore, this application also provides a blocking member 33 on the transfer platform 31, the blocking member 33 including a blocking plate 331 and a blocking cylinder 332 for driving the blocking plate 331 to move in a first direction.

[0048] In this embodiment, when the printed model is conveyed from the first conveyor belt 12 to the transfer platform 31, the blocking cylinder 332 will drive the blocking plate 331 to move in the first direction, thereby blocking the printed model being conveyed in the first direction and keeping it stationary, so as to prevent the printed model from continuing to move in the first direction or even falling on the transfer platform 31 and causing damage to the model.

[0049] Preferably, the baffle plate 331 can be set as a flexible baffle plate to avoid damage to the model surface during the blocking process. After the printing model is blocked by the baffle plate 331, the printing model will be stationary on the printing platform. At this time, the transfer platform 31 and the printing model set on the transfer platform 31 can be rotated by the driving component to rotate the printing model and the transfer platform 31 by a preset angle. The preset angle is the angle between the first direction and the second direction.

[0050] If the first and second directions are perpendicular, the printed model and the transfer model need to be rotated 90 degrees so that the rotated printed model can enter the second conveyor belt 21 and be transported along the second direction.

[0051] Specifically, this application provides a sensor (not shown in the figure) on the transfer platform 31 for detecting whether a printed model exists on the transfer platform 31. The sensor should be located close to the first conveyor belt 12 so that when the printed model enters the transfer platform 31, it will be sensed by the sensor first. Then, the blocking cylinder 332 will drive the blocking plate 331 to move in the first direction, thereby blocking the printed model being transported in the first direction and keeping it stationary. Then, the driving component will drive the transfer platform 31 and the printed model set on the transfer platform 31 to rotate. When it rotates to the required position, the transfer transmission component 32 will drive the printed model to continue to be transported along the second direction on the second conveyor belt 21.

[0052] For example, the aforementioned transfer transmission component 32 can be configured as a transfer conveyor belt or transfer roller, with the transfer direction of the transfer conveyor belt or transfer roller being the second direction, thereby driving the printed model after the rotation is completed, so that the printed model continues to be transferred along the second direction on the second conveyor belt 21. The configuration of the transfer transmission component 32 in the above examples is feasible, and this application does not impose any restrictions on it.

[0053] As an optional implementation, in order to avoid the rotation of the transfer platform 31 affecting the printing model being conveyed on the second conveyor belt 21, this application sets the height of the first conveyor belt 12 to be higher than that of the second conveyor belt 21, and also provides a lifting component (not shown in the figure) at the bottom of the transfer platform 31. In the initial state, the lifting component moves the transfer platform 31 to a height that matches the first conveyor belt 12, so that the first conveyor belt 12 can transfer the printing model to the transfer platform 31. After the transfer platform 31 and the printing model are driven to rotate by the driving component, the lifting component moves the transfer platform 31 and the printing model to a height that matches the second conveyor belt 21, and the transfer transmission component 32 drives the printing model.

[0054] Furthermore, this application sets the height of the first conveyor belt 12 to be higher than that of the second conveyor belt 21. When the transfer platform 31 moves to a height that matches that of the first conveyor belt 12, it can also block the printed model on the adjacent second sub-conveyor belt 211, keeping it stationary and preventing the printed model on the second sub-conveyor belt from continuing to be transmitted along the second direction and causing accumulation on the second conveyor belt 21.

[0055] It should be noted that a corresponding blocking structure can also be set between the transfer platform 31 and the second sub-conveyor belt 211 to prevent the printed model conveyed on the adjacent second sub-conveyor belt 211 from entering the bottom of the transfer platform 31 and causing compression to the printed model when the transfer platform 31 moves downward. The structure can be adjusted accordingly based on the actual situation.

[0056] In an optional embodiment, please refer to Figure 9 This is a fourth embodiment of the printing unit in the automatic feeding and printing system provided in this application. The number of the second conveyor belts 21 can be set to two. In this embodiment, the two second conveyor belts 21 are arranged in parallel and spaced apart.

[0057] Please continue to refer to Figure 1 In this application, the feed port 13 and the discharge port 14 of the printer 11 are connected. Several printers 11 are arranged along the second direction between two second conveyor belts 21, and the feed port 13 and the discharge port 14 of each printer 11 are connected to the adjacent second conveyor belt 21. In this way, the printed model can be transferred from the feed port 13 to the second conveyor belt 21, or from the discharge port 14 to the second conveyor belt 21, thereby improving the transfer efficiency of the printed model. The arrangement of two conveyor belts 21 can also avoid the collision or congestion of the printed model on the same conveyor belt.

[0058] Of course, a door that can be opened and closed (not shown in the figure) can also be provided at the feed inlet 13 and the discharge outlet 14. During the printing process, the door is closed to provide a sealed printing environment for the printer 11. When the printing is finished, the door is opened and the printed model is transferred from the feed inlet 13 or the discharge outlet 14 to the second conveyor belt 21 via the first conveyor belt 12. This application does not impose any further restrictions on the specific form of the door.

[0059] As an optional implementation method, please refer to Figure 4 This is a second embodiment of the transfer unit in the automatic feeding and printing system provided in this application. The transfer unit 30 may further include a third conveyor belt 34 with a bent structure. One end of the third conveyor belt 34 is connected to the first conveyor belt 12, and the other end of the third conveyor belt 34 is connected to the second conveyor belt 21, so as to guide the printing model from the first conveyor belt 12 to the second conveyor belt 21 through the third conveyor belt 34 with the bent structure.

[0060] It is understood that each printer 11's first conveyor belt 12 is connected to a corresponding third conveyor belt 34, and several third conveyor belts 34 converge and connect to the second conveyor belt 21. This application can guide the transmission direction of the printed model by using the third conveyor belt 34 with a bending structure, so that the printed model is transmitted along the bending direction of the third conveyor belt 34. During the transmission process, it is not necessary to block the printed models of other second sub-conveyor belts 211. Therefore, it can maintain high production efficiency and quickly and more smoothly change the transmission direction of the printed model.

[0061] Furthermore, to prevent the printed model from colliding or falling due to excessive speed during the transfer from the third conveyor belt 34 to the second conveyor belt 21, this application provides flexible protective plates 22 on both sides of the second conveyor belt 21. The speed between the second conveyor belt 21 and the third conveyor belt 34 is adjusted, with the speed of the second conveyor belt 21 being lower than that of the third conveyor belt 34. Alternatively, the third conveyor belt 34 can be configured as a variable-speed conveyor belt, allowing the speed of the printed model to gradually decrease during transfer, ensuring a smooth transition to the second conveyor belt 21 and preventing excessive speed during transfer. The flexible protective plates 22 on both sides of the second conveyor belt 21 also provide a degree of buffering even if the transfer speed of the printed model is too high.

[0062] In an optional embodiment, please refer to Figure 5 This is a third embodiment of the transfer unit in the automatic feeding and printing system provided in this application. The transfer unit 30 provided in this application may also include a plurality of gripping devices 35 disposed between the first conveyor belt 12 and the second conveyor belt 21, which grip the printing model on the first conveyor belt 12 onto the second conveyor belt 21.

[0063] It should be noted that, in order to ensure that the gripping device 35 can accurately grip the printed model, the first conveyor belt 12 should be set to a stationary state, that is, the first conveyor belt 12 and the printed model on the first conveyor belt 12 should be stationary, and then the gripping device 35 should grip the printed model on the first conveyor belt 12 to the second conveyor belt 21.

[0064] Alternatively, a collection platform 36 can be set up near the first conveyor belt 12. A detection device is set on the collection platform 36 to detect whether there is a printed model on the collection platform 36. In this way, the first conveyor belt 12 will transport the printed model to the collection platform 36 along the first direction. When the detection device determines that there is a printed model on the collection platform 36, the gripping device 35 will grip the printed model on the collection platform 36 and transfer it to the second conveyor belt 21. This also achieves the same result of moving the printed model on the first conveyor belt 12 to the second conveyor belt 21 and adjusting the transmission direction of the printed model from the first direction to the second direction.

[0065] For example, the printed model can also be placed on a tray, and the gripping device 35 can be set as a robotic arm. During the gripping of the printed model, the tray can be gripped directly. Since the size and shape of the tray are relatively fixed, there is no need to adjust the parameters of the robotic arm for different printed models, and damage to the printed model can be avoided during the gripping process.

[0066] Optionally, the lifting component, driving component, and blocking component 33 can be configured as a drive motor or a cylinder; the detection component and sensing component can be configured as a pressure sensor or a photoelectric detector. All of the above configurations are feasible.

[0067] Please continue to refer to some of the embodiments provided in this application. Figure 4 The aforementioned printers 11 can be arranged along the first direction, with the multiple first conveyor belts 12 converging and connecting in the second conveyor belt 21; or the multiple printers 11 can be arranged in a ring, as long as the multiple first conveyor belts 12 are converging and connecting in the second conveyor belt 21. Both of the above arrangements of the printers 11 are feasible.

[0068] Please refer to Figure 6 This is a first embodiment of the printing unit in the automatic feeding and printing system provided in this application. The aforementioned plurality of printers 11 can be arranged along the second direction on one side of the second conveyor belt 21.

[0069] Please refer to Figure 7 This is a second embodiment of the printing unit in the automatic feeding and printing system provided in this application. The aforementioned plurality of printers 11 can be arranged on both sides of the second conveyor belt 21 along the second direction.

[0070] Please refer to Figure 8 This is a third embodiment of the printing unit in the automatic feeding and printing system provided in this application. The aforementioned plurality of printers 11 can be arranged at intervals on both sides of the second conveyor belt 21 along the second direction.

[0071] Please refer to Figure 9This is a fourth embodiment of the printing unit in the automatic feeding and printing system provided in this application. Alternatively, several printers 11 can be arranged along the second direction, and two second conveyor belts 21 can be set up. The two second conveyor belts 21 are arranged parallel and spaced apart, so that several printers 11 are arranged along the second direction between the two second conveyor belts 21.

[0072] It is understandable that the above Figures 6-9 All configuration methods are feasible. Those skilled in the art can make adaptive adjustments to the specific configuration of the printer 11 and the specific configuration of the transfer unit 30 according to the actual situation. This application does not impose too many restrictions on this.

[0073] For other details regarding the implementation of the above technical solution by setting different transfer units 30, please refer to the description in the automatic feeding and printing system provided in the above application embodiments, which will not be repeated here.

[0074] The automatic feeding and printing system provided in this application places a transfer unit between the second conveyor belt and several first conveyor belts. The transfer unit adjusts the transmission direction of the printing model from the first direction to the second direction, so that the printing model is transmitted along the second direction on the second conveyor belt. This allows more printing tasks to be completed in a short time, improving overall work efficiency. Moreover, this setting can make better use of space, avoiding the use of more complex and space-consuming layout structures. It is also convenient to collect and transmit multiple printing models to subsequent processing equipment, making the entire production process smoother and the connection between each link closer, effectively improving printing efficiency.

[0075] It is understood that the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, 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.

[0076] The above embodiments are merely exemplary implementations used to illustrate the principles of this application; however, this application is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this application, and these modifications and improvements are also considered to be within the scope of protection of this application.

Claims

1. An automatic unloading printing system, characterized by, include: The printing unit includes several printers, each printer having a first conveyor belt. The first conveyor belt is used to carry the printing model and to transport the printed model along a first direction. The conveying unit includes at least one second conveyor belt, which is connected to several first conveyor belts and is used to convey the printed model conveyed by the first conveyor belts along a second direction. A transfer unit is located between the second conveyor belt and several of the first conveyor belts, and is used to adjust the transmission direction of the printed model from the first direction to the second direction so that the printed model is transmitted along the second direction on the second conveyor belt.

2. The automatic dispensing printing system of claim 1, wherein, The transfer unit includes a transfer platform disposed on the second conveyor belt; The transfer platform is equipped with a transfer transmission component and a sensor for detecting whether a printed model exists on the transfer platform. The bottom of the transfer platform is equipped with a drive component for driving the transfer platform to rotate.

3. The automatic feeding and printing system as described in claim 2, characterized in that, The transfer platform is also equipped with a blocking component, which includes a blocking plate and a blocking cylinder that is pulsatorically connected to the blocking plate. The baffle is configured to block the printed model being transported along the first direction, so that the printed model remains stationary on the transfer platform.

4. The automatic feeding and printing system as described in claim 3, characterized in that, The first conveyor belt is set higher than the second conveyor belt, and the bottom of the transfer platform is also provided with a lifting component to move the transfer platform to a height that matches the first conveyor belt, and to move the transfer platform and the printed model on the transfer platform to a height that matches the second conveyor belt.

5. The automatic feeding and printing system as described in claim 2, characterized in that, The number of the second conveyor belts is two, the two second conveyor belts are parallel and spaced apart, and a number of the printers are arranged between the two second conveyor belts along the second direction; The inlet and outlet of each printer are connected, and the inlet and outlet of each printer are connected to the second conveyor belt at the adjacent position.

6. The automatic feeding and printing system as described in claim 1, characterized in that, The transfer unit includes a third conveyor belt with a bent structure. One end of the third conveyor belt is connected to the first conveyor belt, and the other end of the third conveyor belt is connected to the second conveyor belt, so as to guide the printed model from the first conveyor belt to the second conveyor belt through the third conveyor belt.

7. The automatic feeding and printing system as described in claim 6, characterized in that, Each of the printers has a first conveyor belt connected to a corresponding third conveyor belt, and several of the third conveyor belts are connected to the second conveyor belt.

8. The automatic feeding and printing system as described in claim 6, characterized in that, The second conveyor belt has flexible protective plates on both sides, and the speed of the second conveyor belt is less than that of the third conveyor belt.

9. The automatic feeding and printing system as described in claim 1, characterized in that, The transfer unit includes several gripping devices located between the first conveyor belt and the second conveyor belt. The gripping devices are used to grip the printed model on the first conveyor belt onto the second conveyor belt.

10. The automatic feeding and printing system as described in claim 9, characterized in that, The transfer unit also includes several collection platforms connected to the first conveyor belt. Each collection platform is equipped with a detection device for detecting whether a printed model exists on the collection platform. The gripping device is used to grip the printed model on the collection platform and transfer it to the second conveyor belt.

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