A 3D printing machine with a displacement structure

Abstract

This utility model relates to the field of 3D printing machines, and more particularly to a 3D printing machine with a displacement structure, including a support module, a first moving component, a second moving component, a support platform, a lower vacuum chamber, an upper vacuum chamber, a frame, a protective shell, a PLC controller, a vacuum machine, and a pipeline module. This utility model, by incorporating a moving structure with a large range of motion into an existing 3D printing machine, can meet various printing needs. The first moving component controls the forward and backward movement of the lower printing mold, facilitating the picking up or placing of the printing workpiece. The second moving component controls the distance between the upper and lower printing molds, making it suitable for printing workpieces of different heights and allowing for flexible adjustment according to different sizes of printing workpieces, thereby increasing the applicability of the 3D printing machine.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing machines, and in particular to a 3D printing machine with a displacement structure. Background Technology

[0002] 3D printing machines are mainly used to imprint textures onto materials. They employ servo-controlled sliding table precision displacement, utilizing vacuum and servo modules to lift and extrude silicone molds, forming textures on the product. UV curing is then performed, directly imprinting the desired texture onto the coating liquid. 3D printing machines are widely used in the texture production of products such as mobile phone back covers, tablet back covers, and e-cigarette casings, serving as an important process equipment for enhancing the appearance and uniqueness of products.

[0003] Existing 3D printing machines typically employ a fixed or limited-range design, restricting the printing area and making it difficult to adapt to the printing needs of complex or large workpieces, resulting in limited printing effects.

[0004] Therefore, addressing the issue that existing 3D printing machines typically employ fixed or limited-range designs, making them unsuitable for adapting to different sizes, especially large, printable workpieces, a 3D printing machine with a movable structure and a larger range of motion can be designed. By setting a first moving component, the lower printing mold can be controlled to move back and forth, facilitating the picking up or placing of printable workpieces. By setting a second moving component, the distance between the upper and lower printing molds can be controlled, making it suitable for printable workpieces of different heights. This allows for flexible adjustment based on different printable workpiece sizes, thereby increasing the applicability of the 3D printing machine. Utility Model Content

[0005] To overcome the problem that existing 3D printing machines typically employ fixed or limited-range designs, making it difficult to adapt to different sizes, especially large printing workpieces.

[0006] The technical solution of this utility model is as follows: a 3D printing machine with a displacement structure, comprising a support module, a first moving component, a second moving component, a support platform, a lower vacuum chamber, an upper vacuum chamber, a frame, a protective shell, a PLC controller, a vacuum machine, and a pipeline module. The support module is used to install and fix the various working modules of the 3D printing machine. A support platform for installing the lower vacuum chamber is fixedly installed at the upper front of the support module. Two sets of first moving components for controlling the forward and backward movement of the lower vacuum chamber are fixedly installed symmetrically at the lower end of the support platform. An upper vacuum chamber for cooperating with the lower vacuum chamber to perform vacuuming is provided at the upper end of the lower vacuum chamber. A second moving component for controlling the up and down movement of the upper vacuum chamber to adjust the distance between the upper and lower vacuum chambers is fixedly installed at the upper end of the upper vacuum chamber. The lower end of the second moving component is fixedly installed on the support module. Four sets of frames are fixedly installed around the four corners. Protective shells for protecting the internal structure are fixedly installed on the left, right and rear ends of the frames. The protective shells at the left and right ends are equipped with double doors for opening and closing. The upper and lower parts of the protective shell at the rear end are also equipped with double doors for opening and closing. The double doors at the lower part of the rear protective shell are larger than the double doors at the upper part. The internal protective structure can be inspected by opening and closing the double doors. A PLC controller for controlling the working status of the D printing machine is fixedly installed between the inner sides of the top front end of the frame. A vacuum machine for vacuuming is fixedly installed at the upper rear end of the support module. The vacuum machine is connected to the lower vacuum chamber and the upper vacuum chamber through the pipeline module. The lower vacuum chamber and the upper vacuum chamber are respectively equipped with upper and lower printing molds for printing patterns at their respective ends. A UV machine for light curing is fixedly installed at the upper rear end of the support module, next to the vacuum machine. UV lamps for accelerating curing are equipped at the respective ends of the lower vacuum chamber and the upper vacuum chamber.

[0007] Preferably, by setting a moving structure with a large range of motion on the existing 3D printing machine, a variety of different printing needs can be met. By setting a first moving component, the lower printing mold can be controlled to move back and forth, which makes it easy to pick up or place the printing workpiece. By setting a second moving component, the distance between the upper and lower printing molds can be controlled, so that it can be used for printing workpieces of different heights and can be flexibly adjusted according to printing workpieces of different sizes, thereby increasing the applicability of the 3D printing machine.

[0008] Preferably, the first moving component includes a support column, a slide rail, a slider, a connecting plate, a spring, a first damper, and a second damper. The support column is arranged in two sets symmetrically on the left and right. The upper end of each set of support columns is fixedly installed with a slide rail. Each set of slide rails is symmetrically fitted with two sets of sliders for sliding. The slider has a drive module, a control module, a sensor module, and a connection module for controlling the slider's sliding.

[0009] Preferably, the upper ends of the two sets of sliders located on the same slide rail are fixedly connected by a connecting plate, and two sets of springs for buffering are symmetrically fixedly installed on the front and rear sides of the upper end of the connecting plate.

[0010] Preferably, the spring has a first damper inside for assisting rebound, and the upper end of the connecting plate is located on the inner side, while the ends of the two sets of springs that are close to each other are fixedly installed with a second damper for assisting rebound support.

[0011] Preferably, the second moving component includes a slide bar, a mounting plate, a sliding sleeve, a hydraulic cylinder, a hydraulic rod, a first support plate, and a second support plate. The first support plate is provided in two sets symmetrically on the left and right. The upper ends of the two sets of first support plates are fixedly installed with two sets of slide bars symmetrically on the front and back. The upper ends of the four sets of slide bars are fixedly installed with the second support plate.

[0012] Preferably, the four sets of sliding rods are slidably connected by sliding sleeves to a mounting plate for sliding up and down, and a hydraulic rod for controlling the up and down sliding of the mounting plate is fixedly installed on the upper end of the mounting plate.

[0013] Preferably, the upper end of the hydraulic rod extends through the lower end of the second support plate and is fixedly connected to a hydraulic cylinder for controlling the up and down movement of the hydraulic rod. The hydraulic cylinder controls the up and down movement of the hydraulic rod to drive the mounting plate to move synchronously. The mounting plate drives the sliding sleeve to move synchronously, causing the sliding sleeve to slide up and down along the sliding rod.

[0014] The beneficial effects of this utility model are:

[0015] 1. By setting a moving structure with a large range of motion on the existing 3D printing machine, various different printing needs can be met. The first moving component can control the back-and-forth movement of the printing mold, making it easy to pick up or place the printing workpiece. The second moving component can control the distance between the upper and lower printing molds, making it suitable for printing workpieces of different heights. It can be flexibly adjusted according to printing workpieces of different sizes, thereby increasing the applicability of the 3D printing machine. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall three-dimensional structure of the 3D printing machine of this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the 3D printing machine of this utility model from another angle.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the vacuum machine for 3D printing of this utility model.

[0019] Figure 4 The diagram shows the three-dimensional structure of the lower vacuum chamber of the 3D printing machine of this utility model.

[0020] Figure 5 The diagram shown is a three-dimensional structural representation of the first moving component of the 3D printing machine of this utility model.

[0021] Figure 6 The diagram shown is a three-dimensional structural representation of the second moving component of the 3D printing machine of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Support module; 4. Support platform; 5. Lower vacuum chamber; 6. Upper vacuum chamber; 7. Frame; 8. Protective shell; 9. PLC controller; 10. Vacuum machine; 11. Pipeline module; 201. Support column; 202. Slide rail; 203. Slider; 204. Connecting plate; 205. Spring; 206. First damper; 207. Second damper; 301. Slide rod; 302. Mounting plate; 303. Sliding sleeve; 304. Hydraulic cylinder; 305. Hydraulic rod; 306. First support plate; 307. Second support plate. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] A 3D printing machine is a device used to imprint three-dimensional textures or patterns onto the surface of an object. It mainly consists of a servo pressing unit, a control system, a display, a vacuum machine, a UV machine, and other systems. Its working principle is that the slide table is precisely moved to the mold closing position through servo control. By drawing a vacuum and lifting and squeezing the silicone mold by the lower servo module, the product is textured. Then, UV curing is performed to accurately copy the texture or pattern on the silicone mold to the product surface.

[0025] Advantages of 3D imprinting technology

[0026] Cost savings: The texture is directly imprinted on the coating liquid, reducing the cost of the film and eliminating the need for processes such as applying and peeling the film, thus reducing labor costs.

[0027] High-precision printing: It can achieve high-precision texture and pattern printing. Whether it is a complex geometric shape or a fine texture, it can be clearly and accurately copied to the surface of the object, meeting the high requirements for product appearance quality and decorative effect.

[0028] High material adaptability: It is suitable for printing on a variety of materials, such as fiberglass boards. The process parameters can be adjusted according to different material properties and printing requirements to achieve good printing results.

[0029] Environmentally friendly and energy-saving: Through precise printing control, material waste is reduced, and some of the materials used, such as fiberglass, are recyclable, which is beneficial to the environment.

[0030] Highly intelligent and automated: With the help of advanced computer control systems and sensor technology, 3D printing machines can achieve a fully automated printing process, reducing errors and labor intensity caused by manual operation, improving production efficiency and product quality consistency. Users can also monitor the printing process at any time and adjust printing parameters through cloud platforms and Internet of Things technology to achieve personalized customization.

[0031] The history of 3D printing machines

[0032] Early exploration phase

[0033] Originating from traditional rubbing techniques: Traditional rubbing techniques have a long history, such as the ancient Chinese rubbing, which uses tools such as ink, Xuan paper, palm brush and rubbing pad to rub the text and patterns on steles and utensils. This laid the foundation for the development of 3D rubbing machines. The later developed full-form rubbing requires multiple sheets of paper to cover different parts of the object being rubbed, breaking each side to synthesize a three-dimensional shape. This attempt to replicate three-dimensional shapes can be regarded as the early prototype of 3D rubbing.

[0034] Initial accumulation of related technologies: In the 1980s, 3D printing technology began to emerge, and related additive manufacturing technology, materials science and other fields continued to develop, providing technical support and theoretical basis for the emergence of 3D printing machines.

[0035] Technology Foundation Stage

[0036] The development of micro-nano manufacturing technology: Companies like Suzhou Vigor have mastered the underlying technologies of micro-nano lithography, nanoimprinting and diffraction optics, and have a complete industrial chain for micro-nano structure manufacturing. Their related technologies and equipment have provided key support for the research and development and production of micro-nano 3D imprinting technology, and promoted the development of 3D imprinting technology at the microscale.

[0037] Application of computer-aided design and manufacturing technology: The gradual maturation of computer-aided design (CAD) and computer-aided manufacturing (CAM) technologies has made the design and manufacturing of 3D models more accurate and efficient. This provides technical means for the control system and software design of 3D printing machines, enabling precise control and automated operation of the printing process.

[0038] Preliminary Forming Stage

[0039] Determination of Principle and Structure: The basic principle and structure of the 3D printing machine have been gradually determined. It mainly consists of a servo pressing unit, a control system, a display, a vacuum machine, a UV machine, and other systems. By controlling the precise displacement of the slide table through servo control, the texture or pattern on the mold is copied to the product surface by means of vacuuming and lifting and extruding the silicone mold, and the pattern is cured by UV light.

[0040] Advances in materials science: Developments in materials science have provided 3D printing machines with more suitable materials, such as silicone mold materials with different properties and UV curing materials, which meet the printing needs of different fields and products and improve printing quality and effect.

[0041] Development and Application Stage

[0042] Industrial applications: 3D printing machines are widely used in industrial production, such as in the 3C industry, new energy, and new material product molding. They can be used to manufacture product parts with high-precision textures and patterns, improve the appearance quality and decorative effect of products, and reduce production costs.

[0043] Expansion into the cultural and artistic fields: In the cultural and artistic fields, 3D rubbing technology has also shown its unique charm. It can be used to replicate and protect cultural relics, works of art, etc., realizing the digital protection and inheritance of cultural heritage. For example, through 3D scanning and rubbing technology, high-precision digital rubbings of cultural relics can be produced, providing new means for the research and display of cultural relics.

[0044] Intelligentization and Innovation Stage

[0045] Integration of intelligent control technology: With the continuous development of technologies such as artificial intelligence and the Internet of Things, 3D printing machines have gradually realized intelligent control, and have the characteristics of higher automation, simpler operation, and higher production efficiency. For example, by using machine learning algorithms to analyze and optimize the data in the printing process, the stability and consistency of printing quality can be improved.

[0046] The continuous emergence of innovative applications: Driven by the demand for personalized customization, 3D printing machines are constantly expanding into new application areas and market spaces. For example, in the consumer goods sector, products with unique textures and patterns can be customized according to consumers' individual needs, such as phone cases and accessories; in the architectural decoration sector, they can be used to manufacture building materials such as wall panels and floor tiles with three-dimensional textures and patterns.

[0047] 3D printing machines are important in many ways, such as improving production efficiency and quality, reducing production costs, enhancing product design freedom, expanding application areas, promoting environmental sustainability, and facilitating personalized customization. However, 3D printing machines often encounter some problems during actual use. Below are some common problems and their possible causes: 1. Printing interruption or failure: The main causes may be power failure, printhead overheating, filament clogging, or computer malfunction. 2. Model warping or detachment: The main causes may be uneven printing platform, excessively high printing temperature, excessively high printing speed, or material cooling and shrinkage. 3. Rough model surface or air bubbles: The main causes may be poor filament quality, excessively low printing temperature, excessively high printing speed, or nozzle clogging. 4. Printhead clogging or ink leakage: The main causes may be poor filament quality, printhead overheating, failure to replace the filter for a long time, or improper distance between the printhead and the base plate. 5. Incomplete infill: The main cause may be that the infill setting is unrelated to whether the graphic is solid or not; the graphic design needs to be checked.

[0048] Currently, various 3D printing machines exist on the market, but some problems and challenges remain in practical use. For example: 1. FDM type: This type heats plastic filaments to a molten state, extruding and solidifying them layer by layer onto a printing platform to form an object. However, it suffers from relatively low printing accuracy and slow printing speed. 2. SLA type: This type uses a laser to irradiate liquid resin, solidifying it layer by layer. It offers high printing accuracy, but the resin material is expensive and may be harmful. 3. SLS type: This type utilizes a laser to selectively sinter powder materials, building objects layer by layer. It is suitable for various materials, but the equipment cost is high, and the powder requires proper handling.

[0049] Please see Figures 1-4This utility model provides an embodiment: a 3D printing machine with a displacement structure, including a support module 1, a first moving component, a second moving component, a support platform 4, a lower vacuum chamber 5, an upper vacuum chamber 6, a frame 7, a protective shell 8, a PLC controller 9, a vacuum machine 10, and a pipe module 11. The support module 1 is used to install and fix the various working modules of the 3D printing machine. The support platform 4 for installing the lower vacuum chamber 5 is fixedly installed at the upper front of the support module 1. Two sets of first moving components for controlling the forward and backward movement of the lower vacuum chamber 5 are fixedly installed on the lower end of the support platform 4 in a left-right symmetrical manner. The upper end of the lower vacuum chamber 5 is provided with an upper vacuum chamber 6 for cooperating with the lower vacuum chamber 5 to perform vacuuming. The upper end of the upper vacuum chamber 6 is fixedly installed with a second moving component for controlling the up and down movement of the upper vacuum chamber 6 to adjust the distance between the upper vacuum chamber 6 and the lower vacuum chamber 5. The lower end of the second moving component is fixedly installed on the support module 1. The four corners of the support module 1 are fixedly mounted with... The system consists of four frames 7. Protective shells 8 for protecting the internal structure are fixedly installed on the left, right, and rear ends of each frame 7. Double doors for opening and closing are provided on both the left and right protective shells 8. Double doors for opening and closing are also provided on both the upper and lower parts of the rear protective shell 8. The lower double door of the rear protective shell 8 is larger than the upper double door, allowing for inspection and maintenance of the internal protective structure. A PLC controller 9 for controlling the working status of the D-type printing machine is fixedly installed between the inner sides of the top front end of each frame 7. The PLC controller 9 is model S7-1200. A vacuum machine 10 for vacuuming is fixedly installed at the upper rear end of the support module 1. The vacuum machine 10 is connected to the lower vacuum chamber 5 and the upper vacuum chamber 6 via a pipe module 11. The lower vacuum chamber 5 and the upper vacuum chamber 6 have upper and lower printing molds for printing patterns, respectively, located close to each other at their ends. A UV curing agent for photocuring is fixedly installed at the upper rear end of the support module 1, next to the vacuum machine 10. The machine has UV lamps for accelerating curing at one end of the lower vacuum chamber 5 and the upper vacuum chamber 6 that are close to each other.

[0050] Please see Figure 5In this embodiment, the first moving component includes a support column 201, a slide rail 202, a slider 203, a connecting plate 204, a spring 205, a first damper 206, and a second damper 207. Two sets of support columns 201 are arranged symmetrically from left to right. A slide rail 202 is fixedly installed at the upper end of each set of support columns 201. Two sets of sliders 203 for sliding are symmetrically fitted onto each set of slide rails 202. The sliders 203 are internally equipped with a drive module, a control module, and sensors for controlling their sliding. The device module and the connection module connected to the PLC controller 9 are fixedly connected at the upper ends of two sets of sliders 203 on the same slide rail 202 by a connecting plate 204. Two sets of springs 205 for buffering are symmetrically fixedly installed on the front and rear sides of the upper end of the connecting plate 204. The springs 205 are provided with a first damper 206 for assisting rebound inside. The upper end of the connecting plate 204 is located on the inner side, and the ends of the two sets of springs 205 that are close to each other are fixedly installed with a second damper 207 for assisting rebound support.

[0051] Please see Figure 6 In this embodiment, the second moving component includes a slide rod 301, a mounting plate 302, a sliding sleeve 303, a hydraulic cylinder 304, a hydraulic rod 305, a first support plate 306, and a second support plate 307. Two sets of first support plates 306 are symmetrically arranged from left to right. Two sets of slide rods 301 are symmetrically fixedly mounted on the upper ends of both sets of first support plates 306. The upper ends of the four sets of slide rods 301 are fixedly mounted with the second support plate 307. The four sets of slide rods 301 are slidably connected by sliding sleeves 303 for vertical sliding. The mounting plate 302 has a hydraulic rod 305 fixedly installed at its upper end for controlling the up-and-down sliding of the mounting plate 302. The upper end of the hydraulic rod 305 extends through the lower end of the second support plate 307 and is fixedly connected to a hydraulic cylinder 304 for controlling the up-and-down movement of the hydraulic rod 305. The hydraulic cylinder 304 drives the mounting plate 302 to move synchronously by controlling the up-and-down movement of the hydraulic rod 305. The mounting plate 302 drives the sliding sleeve 303 to move synchronously, causing the sliding sleeve 303 to slide up and down along the sliding rod 301.

[0052] When working, first move the 3D printing machine to a stable position so that the support module 1 can provide stable support for the relevant component structure;

[0053] Then open the double doors, check the equipment to ensure there are no abnormalities, and then begin the rubbing process.

[0054] First, the PLC controller 9 controls the first moving module to work. The PLC controller 9 controls the slider 203 to slide along the slide rail 202, which drives the lower vacuum chamber to move synchronously until the lower vacuum chamber is moved to the front end, and the workpiece to be printed is placed on the lower mold.

[0055] Then, the upper vacuum chamber 6 is moved by the second moving component. The hydraulic cylinder 304 controls the hydraulic rod 305 to move the mounting plate 302 up and down, so that the sliding sleeve 303 slides along the sliding rod 301 and moves the upper vacuum chamber 6 until the upper vacuum chamber 6 is moved to a suitable height so as not to affect the entry of the printing workpiece.

[0056] Then, the lower vacuum chamber 5 is moved to the position directly below the upper vacuum chamber 6 by the first moving component, and the upper vacuum chamber 6 is moved by the second moving component so that the upper mold at the lower end of the vacuum chamber 5 cooperates with the upper mold at the upper end of the vacuum chamber 5 to perform a printing process on the surface of the workpiece.

[0057] During the printing process, the vacuum machine 10 controls the pipeline module 11 to perform vacuuming on the upper and lower vacuum chambers 5. After the printing is completed, the UV machine controls the UV lamp to irradiate the printed pattern to accelerate curing.

[0058] After the final processing is completed, the upper and lower printing molds are separated by the second moving component, and the printed workpiece is moved to a position where it is easy to remove the workpiece by the first moving component.

[0059] Through the above steps, by setting a moving structure with a large range of motion on the existing 3D printing machine, various different printing needs can be met. By setting the first moving component, the lower printing mold can be moved back and forth, making it easy to pick up or place the printing workpiece. By setting the second moving component, the distance between the upper and lower printing molds can be controlled, making it suitable for printing workpieces of different heights. It can be flexibly adjusted according to printing workpieces of different sizes, thereby increasing the applicability of the 3D printing machine. This solves the problem that existing 3D printing machines usually adopt a fixed or limited moving range design, which limits the printing range and makes it difficult to adapt to the printing needs of complex or large workpieces, resulting in limited printing effects.

Claims

1. A 3D printing machine with a displacement structure, comprising a support module (1); characterized in that: It also includes a first moving component, a second moving component, a support platform (4), a lower vacuum chamber (5), an upper vacuum chamber (6), a frame (7), a protective shell (8), a PLC controller (9), a vacuum machine (10), and a pipeline module (11). The support module (1) is used to install and fix the various working modules of the 3D printing machine. The upper front of the support module (1) is fixedly installed with a support platform (4) for installing the lower vacuum chamber (5). The lower end of the support platform (4) is symmetrically fixedly installed with two sets of first moving components for controlling the forward and backward movement of the lower vacuum chamber (5). The upper end of the lower vacuum chamber (5) is provided with an upper vacuum chamber (6) for cooperating with the lower vacuum chamber (5) to perform vacuuming. The upper end of the upper vacuum chamber (6) is fixedly installed with a second moving component for controlling the up and down movement of the upper vacuum chamber (6) to adjust the distance between it and the lower vacuum chamber (5). The lower end of the second moving component is fixedly installed on the support module (1). Four sets of first moving components are fixedly installed around the four corners of the support module (1). The frame (7) is fixedly equipped with protective shells (8) for protecting the internal structure on the left, right and rear ends. The protective shells (8) at both ends of the frame (7) are provided with double doors for opening and closing. The protective shells (8) at the rear end are provided with double doors for opening and closing at both the top and bottom. The double doors at the bottom of the rear protective shell (8) are larger than the double doors at the top. The internal protective structure can be inspected by opening and closing the double doors. A P device for controlling the working status of the 3D printing machine is fixedly installed between the top front end and the inner side of the frame (7). The upper rear part of the LC controller (9) and the support module (1) is fixedly installed with a vacuum machine (10) for vacuuming. The vacuum machine (10) is connected to the lower vacuum chamber (5) and the upper vacuum chamber (6) through the pipe module (11). The lower vacuum chamber (5) and the upper vacuum chamber (6) are respectively provided with an upper mold for printing patterns and a lower mold for printing patterns at their respective ends. The upper rear part of the support module (1) is fixedly installed with a UV machine for light curing treatment on the side of the vacuum machine (10). The lower vacuum chamber (5) and the upper vacuum chamber (6) are both provided with UV lamps for accelerating curing at their respective ends.

2. The 3D printing machine with a displacement structure according to claim 1, characterized in that: The first moving component includes a support column (201), a slide rail (202), a slider (203), a connecting plate (204), a spring (205), a first damper (206), and a second damper (207). The support column (201) is arranged in two sets symmetrically on the left and right. The upper end of each set of support columns (201) is fixedly installed with a slide rail (202). Each set of slide rails (202) is symmetrically fitted with two sets of sliders (203) for sliding. The slider (203) is equipped with a drive module, a control module, a sensor module, and a connection module connected to the PLC controller (9) for controlling the sliding of the slider (203).

3. A 3D printing machine with a displacement structure according to claim 2, characterized in that: The upper ends of two sets of sliders (203) located on the same slide rail (202) are fixedly connected by a connecting plate (204). The upper end of the connecting plate (204) has two sets of springs (205) for buffering installed symmetrically on the front and rear sides.

4. A 3D printing machine with a displacement structure according to claim 2, characterized in that: The spring (205) has a first damper (206) inside for assisting rebound, and the upper end of the connecting plate (204) is located on the inner side, while the two sets of springs (205) are fixedly installed with a second damper (207) for assisting rebound support at the ends that are close to each other.

5. A 3D printing machine with a displacement structure according to claim 1, characterized in that: The second moving component includes a slide bar (301), a mounting plate (302), a sliding sleeve (303), a hydraulic cylinder (304), a hydraulic rod (305), a first support plate (306), and a second support plate (307). The first support plate (306) is provided in two sets symmetrically on the left and right. The upper ends of the two sets of first support plates (306) are fixedly installed with two sets of slide bars (301) symmetrically on the front and back. The upper ends of the four sets of slide bars (301) are fixedly installed with the second support plate (307).

6. A 3D printing machine with a displacement structure according to claim 5, characterized in that: The four sets of sliding rods (301) are slidably connected by sliding sleeves (303) to a mounting plate (302) for sliding up and down. The upper end of the mounting plate (302) is fixedly installed with a hydraulic rod (305) for controlling the up and down sliding of the mounting plate (302).

7. A 3D printing machine with a displacement structure according to claim 5, characterized in that: The upper end of the hydraulic rod (305) extends through the lower end of the second support plate (307) and is fixedly connected to the upper end of the hydraulic cylinder (304) for controlling the up and down movement of the hydraulic rod (305). The hydraulic cylinder (304) drives the mounting plate (302) to move synchronously by controlling the up and down movement of the hydraulic rod (305). The mounting plate (302) drives the sliding sleeve (303) to move synchronously, causing the sliding sleeve (303) to slide up and down along the sliding rod (301).

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