Batch production 3D printer equipment

Abstract

The utility model relates to the technical field of 3D printing, in particular to batch production 3D printer equipment, Z-axis brackets are symmetrically arranged on a bottom bracket, and the top ends of each group of Z-axis brackets are connected with the top ends of the adjacent Z-axis brackets through fixing frames to form a cage type structure so as to ensure the structural stability; through movement cooperation of a Z-axis lead screw, an X-axis synchronous belt and a Y-axis conveying belt, multi-nozzle linkage printing is achieved, and batch production is more stably achieved; the symmetrical inclined supports are arranged in a 45-degree inclined mode, the inclined motor and the X-direction stepping motor are driven, large and special parts with infinite lengths can be produced, and the printing size is improved compared with a traditional printer. Waste consumables and plastic garbage are recycled through the consumable recycling module, and printed pieces are polished to remove surface flaws through the mechanical arm and the automatic grinding and polishing module.

Description

A mass production 3D printer device Technical Field

[0001] This utility model relates to the field of 3D printing technology, and in particular to a mass production 3D printer device. Background Technology

[0002] In the 3D printing industry, printing farms, as the absolute leaders, have secured their place in the market with their low entry barriers, minimal investment, high production capacity, and extremely fast return on investment. Within limited factory space, printing farms typically employ denser placement of 3D printers to increase capacity. However, 3D printers require manual operation for various tasks, and each machine is relatively independent, requiring individual operation. Even two machines of the same model may develop different mechanical tolerances after a period of use, leading to different calibration parameters. Therefore, farms often have many dedicated employees for operation, making the process cumbersome and requiring extensive data recording. Furthermore, due to the numerous performance and mechanical adjustments involved, regular maintenance of the machines is often very difficult and troublesome. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects of existing products and propose a mass production 3D printer that can stably achieve mass production results and reduce production costs.

[0004] To achieve the above objectives, the present invention adopts the following specific technical solution:

[0005] The mass production 3D printer equipment provided by this utility model includes a bottom support, on which Z-axis supports are symmetrically arranged. The Z-axis supports are arranged in pairs, and the top of each group of Z-axis supports and the top of the adjacent Z-axis supports are connected by a fixed frame to form a cage structure to ensure structural stability.

[0006] The Z-axis support is equipped with a Z-axis lead screw, and a moving block is fitted onto the Z-axis lead screw. The moving block is driven by a Z-axis motor to move along the Z-axis direction. Each Z-axis support is connected to an X-axis support with an X-axis synchronous belt. A printing nozzle is mounted on the X-axis synchronous belt, and the printing nozzle is driven by an X-axis stepper motor to move along the X-axis direction. The bottom support is equipped with a Y-axis conveyor belt, and a 3D printing platform is mounted on the Y-axis conveyor belt. The 3D printing platform is driven by a Y-axis motor to move along the Y-axis direction.

[0007] An automatic extruder and a motor driver are mounted on the fixed frame. The automatic extruder feeds printing filament to the print head, and the motor driver controls the Z-axis motor, X-axis stepper motor and Y-axis motor to achieve 3D printing.

[0008] Preferably, each X-axis synchronous belt is driven by two X-axis stepper motors to move the print head along the X-axis direction, so that when one X-axis stepper motor fails, the other motor can still drive the print head normally; the Y-axis conveyor belt is driven by two Y-axis motors to move the 3D printing platform along the Y-axis direction to increase torque; the X-axis stepper motors are 42 stepper motors, and the Y-axis motors are 86 motors.

[0009] Preferably, there are 5 sets of Z-axis brackets, and 2 printheads are set on each X-axis synchronous belt.

[0010] Preferably, the 3D printing platform is equipped with a heated bed to improve the bonding effect of the 3D printing platform.

[0011] Preferably, the fixed frame is also equipped with a consumable recycling module, including a screw extruder and two pulverizers with different grinding degrees. The two pulverizers with different grinding degrees perform preliminary pulverization and fine pulverization of the waste material in sequence. The finely pulverized plastic waste powder is put into the screw extruder. The screw extruder pushes the plastic waste powder into the screw extruder and applies pressure to it, so that the plastic waste powder is pushed into the heating zone at the end of the screw extruder for melting. Then, the waste material is extruded in the form of 3D printing consumable filament through the nozzle at the tail end of the screw extruder.

[0012] Preferably, the fixed frame is equipped with a camera to view the monitoring screen at the bottom, thus compensating for the obstruction of the view by the cage structure.

[0013] Preferably, a robotic arm and an automatic grinding and polishing module are also provided next to the bottom support. The automatic grinding and polishing module includes a roller, and the inside of the roller is equipped with replaceable polishing material. After the 3D printing is completed, the Y-axis conveyor belt drives the 3D printing platform to move. The robotic arm grabs the printed part on the 3D printing platform and sends it into the roller of the automatic grinding and polishing module. The rotation of the roller makes the printed part fully contact the polishing material to achieve grinding and polishing of the raised parts on the surface of the printed part and remove surface defects.

[0014] Preferably, the polishing material is a particulate polishing consumable, and the polishing effect is ensured by adjusting the roller speed and the pressure of the polishing material by setting parameters.

[0015] Preferably, a set of symmetrical inclined supports are arranged at a 45-degree angle on both sides of one end of the bottom support. One end of the inclined support is connected to the bottom support, and the other end is connected to the top of the Z-axis support. Both inclined supports are equipped with inclined support screws, and sliders are sleeved on the inclined support screws. The sliders are driven by inclined motors to achieve 45-degree inclined movement. An X-axis support is connected between the sliders. The X-axis support is equipped with an X-axis synchronous belt. A printing nozzle is installed on the X-axis synchronous belt. The printing nozzle is driven by an X-axis stepper motor to achieve X-axis movement. The 3D printing of large and special parts with infinite length is achieved by driving the inclined motors and X-axis stepper motors through a motor driver.

[0016] The present invention can achieve the following technical effects:

[0017] The mass production 3D printer equipment provided by this utility model can achieve more stable mass production results for the application environment of 3D printing farms, while also taking into account the printing mode of special large workpieces, and can flexibly switch between the two modes.

[0018] By integrating a consumables recycling module into the machine, material waste can be reduced, and losses caused by scrap rates can be decreased.

[0019] By incorporating surveillance cameras, the bottom processing can be viewed in real time, thus compensating for the obstructed view caused by the cage structure and the inconvenience of frequent inspections.

[0020] By integrating multiple machines, automatic demolding and automatic sorting can save manpower and solve the pain point of 3D printing farms relying entirely on manual labor, thereby reducing the manpower requirements of 3D printing farms and reducing costs for enterprises.

[0021] By designing a symmetrical inclined support at a 45-degree angle, driving the inclined motor and the X-axis stepper motor, infinite Z-axis printing can be achieved. This allows for the production of larger and more specialized parts with unlimited length, enabling parts that originally required splicing to be printed as a single integrated unit, improving stability and strength. At the same time, it reduces the space occupied by the infinite Z-axis, combining the high-density, high-volume output of ordinary 3D printers with the special printing capabilities of the infinite Z-axis. This solves the problems of ordinary 3D printers lacking special printing capabilities and the large footprint of the infinite Z-axis. Attached Figure Description

[0022] Figure 1 is a structural schematic diagram of a mass production 3D printer equipment provided according to an embodiment of the present utility model;

[0023] Figure 2 is a schematic diagram of the mass production 3D printer equipment provided according to an embodiment of the present utility model from another angle.

[0024] Figure 3 is a partial enlarged view of the mass production 3D printer equipment provided according to an embodiment of the present invention.

[0025] The reference numerals in the figures include:

[0026] Bottom support 1, Z-axis support 2, fixed frame 3, Z-axis lead screw 4, X-axis support 5, print head 6, Y-axis conveyor belt 7, automatic extruder 8, motor driver 9, consumable recycling module 10, robotic arm 11, automatic grinding and polishing module 12, inclined support 13, inclined support lead screw 14. Detailed Implementation

[0027] In the following description, embodiments of the present invention will be described with reference to the accompanying drawings. In the description below, the same modules are denoted by the same reference numerals. Where the same reference numerals are used, their names and functions are also the same. Therefore, their detailed description will not be repeated.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model 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 the present utility model and do not constitute a limitation thereof.

[0029] This utility model embodiment provides a mass production 3D printer device, the structure of which is shown in Figures 1, 2 and 3. It includes a bottom support 1, on which Z-axis supports 2 are symmetrically arranged. The Z-axis supports 2 are arranged in pairs, and the top of each group of Z-axis supports and the top of the adjacent Z-axis supports are connected by a fixed frame 3 to form a cage structure to ensure structural stability.

[0030] Z-axis support 2 is equipped with Z-axis lead screw 4, and a moving block is sleeved on Z-axis lead screw 4. The moving block is driven by Z-axis motor to move along Z-axis direction. X-axis support 5 is connected between the moving blocks of each Z-axis support. X-axis support 5 is equipped with X-axis synchronous belt. Printing nozzle 6 is installed on X-axis synchronous belt. Printing nozzle 6 is driven by X-axis stepper motor to move along X-axis direction. Y-axis conveyor belt 7 is installed on bottom support 1. 3D printing platform is installed on Y-axis conveyor belt 7. 3D printing platform is driven by Y-axis motor to move along Y-axis direction.

[0031] An automatic extruder 8 and a motor driver 9 are mounted on the fixed frame 3. The automatic extruder 8 feeds printing consumables to the printing nozzle 6, and the motor driver 9 realizes 3D printing by controlling the Z-axis motor, X-axis stepper motor and Y-axis motor.

[0032] In a preferred embodiment, five sets of Z-axis supports are provided, and two printheads are provided on each X-axis synchronous belt.

[0033] Each X-axis synchronous belt is driven by two X-axis stepper motors to move the print head along the X-axis. The Y-axis conveyor belt is driven by two Y-axis motors to move the 3D printing platform along the Y-axis to increase torque; the X-axis stepper motors are 42 stepper motors, and the Y-axis motors are 86 motors.

[0034] The motor driver 9 uses an MKSGENV2.1 microcontroller to share motor signals with ten 42-stepper motors. A 2GT conveyor belt drives the printhead. For X-axis movement, this application does not use the conventional method of a drive wheel plus an idler wheel, but instead employs a dual 42-stepper motor synchronous pulley system. If one 42-stepper motor fails, the X-axis movement can continue normally without motor seizure, thus avoiding losses caused by partial motor failure. Shared Z-axis motor signals ensure consistent operating angles and speeds for all ten Z-axis motors. The Z-axis motors are precisely controlled via a 5mm to 8mm coupling connected to a T8 lead screw. Because each motor operates at the same angle and speed, stable and smooth lifting of the X-axis support is achieved.

[0035] The Y-axis conveyor belt 7 uses a relatively stable industrial conveyor belt, with a masking tape layer specifically for 3D printing platforms applied to its surface. To address the significant resistance issue of large conveyor belts, this application includes 86 motors with a high torque of 8.5 Nm on both sides of the Y-axis conveyor belt 7. The 86 motors drive the drive shaft in conjunction with the driven shaft to rotate the Y-axis conveyor belt 7. At the same time, a large, one-piece molded iron plate is added in the middle of the Y-axis conveyor belt 7 as a 3D printing platform. This iron plate can be installed as a heated bed to improve the bonding effect of the printing platform.

[0036] The fixed frame 3 can also be equipped with a consumable recycling module 10. The consumable recycling module includes a screw extruder and two pulverizers with different grinding degrees. The two pulverizers with different grinding degrees can perform preliminary pulverization and fine pulverization of any plastic in sequence. The finely pulverized plastic waste is put into the screw extruder. The screw extruder pushes the plastic waste into the screw extruder and applies pressure to it, so that the plastic waste is pushed into the heating zone at the end of the extruder to melt. At the same time, the continuously flowing plastic waste continues to apply pressure to the molten plastic, forcing it to pass through the 1.75mm nozzle at the tail end, so that the plastic is extruded into the recast component in the state of 1.75 standard 3D printing consumable filament.

[0037] For temperature control, each printhead uses a W1209 module for precise temperature control. The W1209 drives a MOSFET to power a 24V 80W heating element as the heat source for the printhead. Temperature data from each printhead is fed back to the W1209 module via a thermistor, and the module then adjusts the temperature accordingly. Furthermore, a switch assembly designed by us is located before the power supply line to the heating element. If a printhead malfunctions, the heating line and the extruder of that printhead can be shut off to prevent waste of consumables and wear on the extruder.

[0038] A camera is installed in the fixed frame 3 to monitor the bottom and compensate for the field of view obstructed by the cage structure. Machine vision is implemented using a Linux system based on a Raspberry Pi 5 and a K210 vision module. During small-batch print inspection, data from the first two batches of parts can be used to differentiate print quality. Simultaneously, common printing errors and defects are preliminarily identified in a cloud database, and the results can be saved to the motherboard or transmitted to the platform. The Raspberry Pi 5 connects to a monitor via an HDMI cable, allowing staff to view the camera feed. The feed can also be transmitted to the cloud for convenient remote monitoring.

[0039] The bottom support 1 is also equipped with a robotic arm 11 and an automatic grinding and polishing module 12. The automatic grinding and polishing module 12 includes a roller, inside which replaceable polishing materials, such as granular polishing consumables, are provided. The polishing materials are combined and matched according to different polishing requirements. After 3D printing is completed, the Y-axis conveyor belt 7 drives the 3D printing platform to move. The robotic arm 11 picks up the printed part from the 3D printing platform and feeds it into the roller of the automatic grinding and polishing module 12. The roller rotates at high speed, and under the combined action of centrifugal force and friction, the printed part and the polishing material are in full contact. By grinding and polishing the raised parts on the surface of the printed part, surface defects are gradually removed. At the same time, the machine's built-in sensors can monitor data such as the surface roughness of the printed part in real time. Combined with preset polishing parameters, the machine intelligently adjusts the roller speed and the pressure of the polishing material to ensure that the polishing effect reaches the optimal state.

[0040] A set of symmetrical inclined supports 13 can be set at a 45-degree angle on both sides of one end of the bottom support 1. One end of the inclined support 13 is connected to the bottom support 1, and the other end is connected to the top of the Z-axis support 2. Both inclined supports are equipped with inclined support screws 14, and sliders are sleeved on the inclined support screws 14. The sliders are driven by inclined motors to achieve 45-degree inclined movement. An X-axis support is connected between the sliders. The X-axis support is equipped with an X-axis conveyor belt. A printing nozzle is set on the X-axis synchronous belt. The printing nozzle is driven by an X-axis stepper motor to achieve X-axis movement. The inclined motor and the X-axis stepper motor are driven by the motor driver 9. Large and special parts with a height of 50cm, a width of 80cm, and unlimited length, such as the wings of model airplanes, can be 3D printed. Compared with traditional printers, the printing size is greatly improved, and many parts that originally needed to be spliced ​​can be printed in one piece, which greatly improves their stability and strength.

[0041] After the 3D printing task is completed and the printed object is formed, machine vision technology is used for visual inspection. This involves a comprehensive inspection of the printed object to determine if its appearance, dimensions, and other characteristics meet standards. Following visual inspection, the Y-axis conveyor belt starts, automatically detaching the printed object from the printing platform. The conveyor belt then transports the object to the sorting stage, where it is divided into qualified and unqualified products based on the visual inspection results. Qualified products undergo grinding and polishing to improve surface quality and meet final usage requirements. Unqualified products directly enter the waste recycling process for the reuse of related materials.

[0042] The mass production 3D printer provided in this embodiment can dynamically adjust the printing parameters of each nozzle according to the complexity and precision requirements of the preset model. For example, for the fine structural parts of the model, adjacent nozzles can work together to print at a higher resolution; for large-area filling areas, the nozzles can adjust the jetting speed and material flow rate to achieve rapid and uniform filling, thereby significantly improving overall printing efficiency and molding quality. A high-strength alloy frame is used to construct the main body, forming a stable rigid connection, greatly improving the overall structural strength and effectively resisting vibration interference caused by high-speed motor operation and rapid nozzle movement during printing, ensuring long-term stability of printing accuracy.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0045] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A mass production 3D printer device, characterized in that, The system includes a bottom support, on which at least one set of Z-axis supports are symmetrically arranged. The Z-axis supports are arranged in pairs, and the top of each pair of Z-axis supports is connected to the top of the adjacent Z-axis supports by a fixed frame, forming a cage structure to ensure structural stability. Each Z-axis support is equipped with a Z-axis lead screw, and a moving block is fitted onto the Z-axis lead screw. The moving block is driven by a Z-axis motor to move along the Z-axis. An X-axis support is connected between the moving blocks of each Z-axis support. The X-axis support is equipped with an X-axis synchronous belt, and at least one printing nozzle is mounted on the X-axis synchronous belt. The printing nozzle is driven by an X-axis stepper motor to move along the X-axis. A Y-axis conveyor belt is mounted on the bottom support, and a 3D printing platform is mounted on the Y-axis conveyor belt. The 3D printing platform is driven by a Y-axis motor to move along the Y-axis. An automatic extruder and a motor driver are mounted on the fixed frame. The automatic extruder supplies printing filament to the printing nozzle, and the motor driver controls the Z-axis motor, X-axis stepper motor, and Y-axis motor to perform 3D printing.

2. The mass production 3D printer equipment according to claim 1, characterized in that, Each X-axis synchronous belt drives the print head along the X-axis direction through two X-axis stepper motors. This ensures that if one X-axis stepper motor fails, the remaining motor can still drive the print head normally. The Y-axis conveyor belt drives the 3D printing platform along the Y-axis direction through two Y-axis motors to increase torque. The X-axis stepper motors are 42 stepper motors, and the Y-axis motors are 86 stepper motors.

3. The mass production 3D printer equipment according to claim 1, characterized in that, There are 5 sets of Z-axis brackets, and 2 printheads are set on each X-axis synchronous belt.

4. The mass production 3D printer equipment according to claim 1, characterized in that, The 3D printing platform is equipped with a heated bed to improve the bonding effect of the 3D printing platform.

5. The mass production 3D printer equipment according to claim 1, characterized in that, The fixed frame is also equipped with a consumable recycling module, including a screw extruder and two pulverizers with different grinding degrees. The two pulverizers with different grinding degrees will perform preliminary crushing and fine crushing of the waste material in sequence. The finely crushed plastic waste powder is put into the screw extruder. The screw extruder pushes the plastic waste powder into the screw extruder and applies pressure to it, so that the plastic waste powder is pushed into the heating zone at the end of the screw extruder for melting. Then, the waste material is extruded in the form of 3D printing consumable filament through the nozzle at the tail end of the screw extruder.

6. The mass production 3D printer equipment according to claim 1, characterized in that, A camera is installed on the fixed frame to monitor the processing at the bottom, thus compensating for the obstruction of view caused by the cage structure.

7. The mass production 3D printer equipment according to claim 1, characterized in that, Next to the bottom support, there is also a robotic arm and an automatic grinding and polishing module. The automatic grinding and polishing module includes a roller, which contains replaceable polishing material. After the 3D printing is completed, the Y-axis conveyor belt drives the 3D printing platform to move. The robotic arm picks up the printed part from the 3D printing platform and sends it into the roller of the automatic grinding and polishing module. The rotation of the roller makes full contact between the printed part and the polishing material to grind and polish the raised parts on the surface of the printed part and remove surface defects.

8. The mass production 3D printer equipment according to claim 7, characterized in that, The polishing material used is granular polishing consumable. The polishing effect is ensured by adjusting the roller speed and the pressure of the polishing material by setting parameters.

9. The mass production 3D printer equipment according to claim 1, characterized in that, A set of symmetrical inclined supports is set at a 45-degree angle on both sides of one end of the bottom support. One end of the inclined support is connected to the bottom support, and the other end is connected to the top of the Z-axis support. Both inclined supports are equipped with inclined support screws, and sliders are fitted on the inclined support screws. The sliders are driven by inclined motors to move at a 45-degree angle. An X-axis support is connected between the sliders. The X-axis support is equipped with an X-axis synchronous belt. A printing nozzle is set on the X-axis synchronous belt. The printing nozzle is driven by an X-axis stepper motor to move along the X-axis. The 3D printing of special parts with unlimited length is achieved by driving the inclined motors and X-axis stepper motors through a motor driver.

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