A large high-precision non-metal 3D printing device for improving printing efficiency

Abstract

The application belongs to the technical field of printing, and discloses a large high-precision non-metal 3D printing device capable of improving printing efficiency, which comprises a printer bin assembly, the printer bin assembly comprises a main bin, a bin blocking arm is fixedly arranged in the main bin, a printing cavity for printing is arranged at the top of the main bin, and a discharging cavity for discharging is arranged at the bottom of the main bin, an auxiliary sealing roller bin assembly is rotationally arranged in the bin blocking arm, and a group of printing table assemblies for printing and another group of printing table assemblies for discharging are arranged at the top and the bottom of the auxiliary sealing roller bin assembly respectively. The two groups of printing table assemblies form a double-station structure processing table structure which does not interfere with each other and can alternately operate in the printer bin assembly. The two groups of printing table assemblies rotate and change positions along with the rotation of the auxiliary sealing roller bin assembly, accurately rotate and change positions between the printing cavity and the discharging cavity, do not destroy the printing environment in the printing cavity, and do not affect the discharging treatment in the discharging cavity.

Description

Technical Field

[0001] This invention belongs to the field of printing technology, specifically relating to a large-scale, high-precision non-metallic 3D printing device that improves printing efficiency. Background Technology

[0002] Currently, in the field of additive manufacturing (3D printing) of large non-metallic materials such as composite materials, ceramics, and polymers, traditional printing equipment has significant shortcomings in continuous production and efficient material handling due to limitations in material properties, process requirements, and printing environment. Especially in applications requiring a stable printing environment, such as inert gas protection, constant temperature and humidity, and oxidation prevention, existing equipment often requires manual removal of the part after printing by opening the chamber door. This process not only disrupts the environmental stability within the printing chamber, leading to a decrease in print quality, but also causes production interruptions, severely impacting printing efficiency and consistency.

[0003] Furthermore, most existing large-scale printing equipment adopts a single-station design, which prevents printing and unloading from being performed simultaneously, further limiting the equipment's production capacity. Although some equipment attempts to achieve alternating printing and unloading operations through turntables or dual-station structures, it is often difficult to effectively maintain the sealing of the printing environment during the switching process, which can easily lead to gas leaks, temperature fluctuations, or the entry of external contaminants, affecting the quality of the printed products.

[0004] Therefore, there is an urgent need for a large-scale, high-precision non-metallic 3D printing device that can achieve rapid and precise switching of workstations during the printing process and maintain the sealing of the printing environment during the switching process, so as to improve printing efficiency, ensure printing quality, and meet the stringent requirements of high-end manufacturing fields for printing environment control. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides a large-scale, high-precision non-metallic 3D printing device that improves printing efficiency and is easy to use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a large-scale high-precision non-metallic 3D printing device for improving printing efficiency, comprising a printer chamber assembly, the printer chamber assembly comprising a main unit chamber, a chamber barrier arm fixedly disposed inside the main unit chamber, a printing cavity for printing is disposed at the top of the main unit chamber, and a material unloading cavity for unloading is disposed at the bottom of the main unit chamber. An auxiliary sealed roller chamber assembly is rotatably installed inside the machine compartment isolation arm. The top and bottom ends of the auxiliary sealed roller chamber assembly are respectively provided with a set of printing table assemblies for printing and another set of printing table assemblies for unloading. The two sets of printing table assemblies form a dual-station processing table structure that does not interfere with each other and can operate alternately within the printing chamber assembly. A rotary displacement wheel assembly is provided at the rear end of the printing chamber assembly to drive the two sets of printing table assemblies to rotate and change positions. A printing sealed protective plate assembly is provided inside the auxiliary sealed roller chamber assembly to provide sealed protection for the printing table assemblies during rotation and repositioning.

[0007] In a preferred embodiment of a large-scale, high-precision non-metallic 3D printing device for improving printing efficiency, the machine compartment barrier arm has a displacement rotation groove inside, an L-shaped arm and a rear machine compartment are fixedly installed on the rear compartment of the main machine compartment, a drive motor is fixedly installed on the L-shaped arm, a compartment door is fixedly installed on the front compartment of the main machine compartment, and airtight doors are respectively provided at the top and bottom of the compartment door, with handles provided on the airtight doors.

[0008] In a preferred embodiment of a large-scale, high-precision non-metallic 3D printing device for improving printing efficiency, the auxiliary sealed roller chamber assembly includes a roller chamber. An inner support arm is fixedly installed in the middle of the roller chamber. A first hydraulic cylinder is fixedly installed at the top and bottom of the inner support arm. A T-shaped groove is opened on the center line of the inner wall of the roller chamber, and an auxiliary gear is rotatably installed on one side of the inner wall of the roller chamber. A drive spindle is fixedly installed on the outer wall of the roller chamber away from the auxiliary gear. A drive end wheel is fixedly installed at the end of the drive spindle away from the roller chamber. A drive transverse groove and a drive arc groove are opened on the drive end wheel. An exit groove is opened at the top and bottom of the roller chamber.

[0009] In a preferred embodiment of a large-scale, high-precision non-metallic 3D printing device for improving printing efficiency, the printing table assembly includes a printing storage compartment, a second hydraulic cylinder is fixedly installed inside the printing storage compartment, a printing table plate is fixedly installed on the top of the second hydraulic cylinder, a bottom arm is fixedly installed at the bottom of the printing storage compartment, and a bottom tooth arm is fixedly installed at the bottom of the bottom arm.

[0010] In a preferred embodiment of a large-scale high-precision non-metallic 3D printing device for improving printing efficiency, the printing sealed protective plate assembly includes an arc-shaped sealed protective plate, the inner wall of the arc-shaped sealed protective plate is fixedly provided with a protective plate tooth arm, and the outer wall of the arc-shaped sealed protective plate is fixedly provided with a T-shaped slider. The rotary shifting wheel assembly includes a rotary shifting shaft, one end of which is fixedly provided with a rotary shifting notch wheel, and a rotary shifting arm is fixedly provided in the middle of the rotary shifting shaft. A rotary shifting rod is fixedly provided at the end of the rotary shifting arm away from the rotary shifting shaft.

[0011] In a preferred embodiment of a large-scale, high-precision non-metallic 3D printing device that improves printing efficiency, the drive spindle is rotatably connected to the rear end chamber of the main unit via a bearing, the drive end wheel is located below the L-shaped arm, the roller chamber is rotatably set in the transposition rotation groove, and the top and bottom of the machine chamber barrier arm are provided with through grooves adapted to the output groove. The through grooves are aligned with the output groove to allow the printing storage chamber to pass through.

[0012] In a preferred embodiment of a large-scale, high-precision non-metallic 3D printing device that improves printing efficiency, the bottom of the printing storage chamber is fixed to the top of the first hydraulic cylinder. The printing storage chamber slides up and down in the roller chamber and extends out through the table slot. The bottom tooth arm is located on the side of the auxiliary gear near the first hydraulic cylinder. The bottom tooth arm meshes with the auxiliary gear. The second hydraulic cylinder drives the printing table to reciprocate in the printing storage chamber.

[0013] In a preferred embodiment of a large-scale, high-precision non-metallic 3D printing device for improving printing efficiency, the T-shaped slider on the arc-shaped sealed protective plate slides within the T-shaped groove. The protective plate tooth arm on the inner wall of the arc-shaped sealed protective plate meshes with the side of the auxiliary gear away from the bottom tooth arm. By pulling down the printing and receiving compartment through the first hydraulic cylinder, the bottom tooth arm meshes with one side of the auxiliary gear for transmission. The other side of the auxiliary gear moves by meshing with the protective plate tooth arm, causing the arc-shaped sealed protective plate to close the printing slot in the printing slot.

[0014] In a preferred embodiment of a large-scale, high-precision non-metallic 3D printing device for improving printing efficiency, the rotary transposition shaft is mounted on the output shaft of the drive motor, the rotary transposition notch wheel is mounted below the drive end wheel, and the rotary transposition arm rotates and moves the drive end wheel by means of the rotary transposition rod and the drive transverse groove.

[0015] In a preferred embodiment of a large-scale, high-precision non-metallic 3D printing device that improves printing efficiency, the two sets of printing stage assemblies rotate and shift as the auxiliary sealed roller assembly rotates and shifts, and the two sets of printing stage assemblies precisely rotate and shift between the printing chamber and the unloading chamber, and the printing chamber and the unloading chamber are sealed by the sealed door.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes two sets of printing table assemblies within the printer chamber assembly to form a dual-station processing table structure that operates independently and alternately. The two sets of printing table assemblies rotate and reposition precisely between the printing chamber and the unloading chamber as the auxiliary sealed roller chamber assembly rotates and repositions. This method ensures that the printing environment within the printing chamber is not disrupted during rotation and repositioning, while simultaneously not affecting the unloading process within the unloading chamber.

[0017] 2. The present invention can seal the printing slot in a timely and rapid manner; the printing sealing plate assembly seals the printing slot as the printing table assembly moves down, thereby sealing the printing slot and the top of the printing storage compartment, that is, the printing sealing plate assembly provides sealing protection for the printed parts in the printing storage compartment.

[0018] 3. The rear end of the printer compartment assembly of the present invention is provided with a rotary shifting wheel assembly that drives two sets of printing table assemblies to rotate and change positions. The rotary shifting notch wheel is driven by a drive motor to rotate one revolution. During one revolution, the rotary shifting arm cooperates with the drive transverse groove through the rotary shifting rod to drive the drive end wheel to rotate 180 degrees. At this time, the drive spindle drives the roller compartment to rotate 180 degrees in the shifting rotation groove. At this time, the two sets of printing table assemblies on the auxiliary sealed roller compartment assembly can achieve precise shifting between the printing chamber and the unloading chamber. That is, the precise shifting operation is achieved by rotating the rotary shifting notch wheel one revolution. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is an exploded view of the printer compartment assembly of the present invention; Figure 4 This is an exploded view of some components of the present invention; Figure 5 This is a cross-sectional view of the auxiliary sealed roller bin assembly of the present invention; Figure 6 This is a cross-sectional view of the printing table assembly of the present invention; Figure 7 This is a perspective view of the printed sealed protective plate assembly of the present invention; Figure 8 This is a perspective view of the auxiliary sealed roller bin assembly and the rotary transposition wheel assembly of the present invention.

[0020] In the diagram: 100, Printer compartment assembly; 101, Main unit compartment; 102, Compartment barrier arm; 103, Discharge chamber; 104, Rotary shifting groove; 105, Compartment door; 106, Handle; 107, Airtight door; 108, Printing chamber; 109, Rear compartment; 110, Drive motor; 111, L-shaped arm; 200, Auxiliary airtight roller compartment assembly; 201, Roller compartment; 202, Auxiliary gear; 203, T-shaped slide rail; 204, Output slide rail; 205, Drive end wheel; 206, Drive spindle; 207, Inner support arm; 208. First hydraulic cylinder; 209. Drive arc groove; 210. Drive transverse groove; 300. Printing table assembly; 301. Printing storage compartment; 302. Bottom arm; 303. Bottom toothed arm; 304. Second hydraulic cylinder; 305. Printing table plate; 400. Printing sealing guard plate assembly; 401. Arc-shaped sealing guard plate; 402. Guard plate toothed arm; 403. T-shaped slider; 500. Rotary shift wheel assembly; 501. Rotary shift shaft; 502. Rotary shift arm; 503. Rotary shift rod; 504. Rotary shift notched wheel. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-8 As shown, the present invention provides a large-scale high-precision non-metallic 3D printing device for improving printing efficiency, including a printer chamber assembly 100. The printer chamber assembly 100 includes a main chamber 101. A chamber barrier arm 102 is fixedly installed inside the main chamber 101. A printing cavity 108 for printing is provided at the top of the main chamber 101, and a material unloading cavity 103 for unloading is provided at the bottom of the main chamber 101. An auxiliary sealed roller chamber assembly 200 is rotatably installed inside the machine compartment barrier arm 102. The top and bottom ends of the auxiliary sealed roller chamber assembly 200 are respectively provided with a set of printing table assemblies 300 for printing and another set of printing table assemblies 300 for unloading. The two sets of printing table assemblies 300 form a dual-station processing table structure that does not interfere with each other and can operate alternately within the printer chamber assembly 100. A rotary displacement wheel assembly 500 is provided at the rear end of the printer chamber assembly 100 to drive the two sets of printing table assemblies 300 to rotate and change positions. The auxiliary sealed roller chamber assembly 200 is provided with a printing sealed protective plate assembly 400 for sealing and protecting the printing table assemblies 300 during the rotation and changing process.

[0023] In a preferred embodiment, please refer to Figure 3The nacelle isolation arm 102 has a displacement rotation groove 104 inside. An L-shaped boom 111 and a rear nacelle 109 are fixedly installed on the rear nacelle of the main nacelle 101. A drive motor 110 is fixedly installed on the L-shaped boom 111. A nacelle door 105 is fixedly installed on the front nacelle of the main nacelle 101. A sealed door 107 is provided at the top and bottom of the nacelle door 105. A handle 106 is provided on the sealed door 107.

[0024] Specifically, the door 105 corresponds to the front opening of the main unit compartment 101, and the airtight doors 107 are respectively provided at the top and bottom of the door 105, for independently opening or closing the printing chamber 108 and the unloading chamber 103.

[0025] In this embodiment, the top and bottom of the bay barrier arm 102 are provided with passage slots that are adapted to the output slot 204. The passage slots are aligned with the output slot 204 so that the printing storage compartment 301 can pass through.

[0026] In this embodiment, the two sets of printing table assemblies 300 are rotated and shifted as the auxiliary sealed roller hopper assembly 200 rotates.

[0027] In this embodiment, the two sets of printing stage assemblies 300 rotate precisely between the printing cavity 108 and the unloading cavity 103.

[0028] In this embodiment, the printing chamber 108 and the feeding chamber 103 are sealed by the airtight door 107.

[0029] In a preferred embodiment, please refer to Figure 5 The auxiliary sealed roller bin assembly 200 includes a roller bin 201. An inner support arm 207 is fixedly installed in the middle of the roller bin 201. A first hydraulic cylinder 208 is fixedly installed at the top and bottom of the inner support arm 207. A T-shaped slide groove 203 is opened on the center line of the inner wall of the roller bin 201. An auxiliary gear 202 is rotatably installed on one side of the inner wall of the roller bin 201. A drive main shaft 206 is fixedly installed on the outer wall of the roller bin 201 away from the auxiliary gear 202. A drive end wheel 205 is fixedly installed at the end of the drive main shaft 206 away from the roller bin 201. A drive transverse groove 210 and a drive arc groove 209 are opened on the drive end wheel 205. An exit groove 204 is opened at the top and bottom of the roller bin 201.

[0030] Preferably, the inner wall of the roller bin 201 is provided with a T-shaped groove 203 along the axial direction, and the auxiliary gear 202 is rotatably disposed on the inner wall of the roller bin 201 and located on one side of the T-shaped groove 203.

[0031] In this embodiment, the drive spindle 206 is rotatably connected to the rear end chamber of the main unit 101 via a bearing.

[0032] In this embodiment, the drive end wheel 205 is located below the L-shaped boom 111.

[0033] In this embodiment, the roller bin 201 is rotatably disposed within the transposition rotation groove 104.

[0034] In a preferred embodiment, please refer to Figure 6 The printing table assembly 300 includes a printing storage compartment 301, a second hydraulic cylinder 304 is fixedly installed inside the printing storage compartment 301, a printing table plate 305 is fixedly installed on the top of the second hydraulic cylinder 304, a bottom arm 302 is fixedly installed at the bottom of the printing storage compartment 301, and a bottom tooth arm 303 is fixedly installed at the bottom of the bottom arm 302.

[0035] In this embodiment, the bottom of the printing storage compartment 301 is fixed to the top of the first hydraulic cylinder 208.

[0036] In this embodiment, the printing storage compartment 301 slides up and down within the roller compartment 201 and extends out through the tabletop groove 204.

[0037] In this embodiment, the bottom gear arm 303 is disposed on the side of the auxiliary gear 202 near the first hydraulic cylinder 208, and the bottom gear arm 303 meshes with the auxiliary gear 202.

[0038] In this embodiment, the second hydraulic cylinder 304 drives the printing plate 305 to reciprocate within the printing storage compartment 301.

[0039] In a preferred embodiment, please refer to Figure 7 The printed sealed protective plate assembly 400 includes an arc-shaped sealed protective plate 401, with a protective plate tooth arm 402 fixedly provided on the inner wall of the arc-shaped sealed protective plate 401, and a T-shaped slider 403 fixedly provided on the outer wall of the arc-shaped sealed protective plate 401.

[0040] In this embodiment, the T-shaped slider 403 on the arc-shaped sealed protective plate 401 slides within the T-shaped groove 203.

[0041] In this embodiment, the guard plate tooth arm 402 on the inner wall of the arc-shaped sealed guard plate 401 meshes with the side of the auxiliary gear 202 away from the bottom tooth arm 303.

[0042] In this embodiment, the first hydraulic cylinder 208 pulls down the printing storage compartment 301, causing the bottom gear arm 303 to mesh with one side of the auxiliary gear 202. The other side of the auxiliary gear 202 engages with the guard plate gear arm 402, causing the arc-shaped sealing guard plate 401 to close the outlet groove 204. Preferably, the arc-shaped sealing guard plate 401 slides along the inner wall of the roller compartment 201. When the printing storage compartment 301 descends, the arc-shaped sealing guard plate 401 rises to the outlet groove 204 to close it.

[0043] In a preferred embodiment, please refer to Figure 8The rotary shifting wheel assembly 500 includes a rotary shifting shaft 501, a rotary shifting notched wheel 504 fixedly provided at one end of the rotary shifting shaft 501, a rotary shifting arm 502 fixedly provided in the middle of the rotary shifting shaft 501, and a rotary shifting rod 503 fixedly provided at the end of the rotary shifting arm 502 away from the rotary shifting shaft 501.

[0044] In this embodiment, the rotary transposition shaft 501 is mounted on the output shaft of the drive motor 110.

[0045] In this embodiment, the rotary transposition notch wheel 504 is disposed below the drive end wheel 205.

[0046] In this embodiment, the rotary transposition arm 502 rotates and moves the drive end wheel 205 by means of the rotary transposition rod 503 and the drive transverse groove 210.

[0047] The working principle of this invention is as follows: When printing large non-metallic materials, some materials have special characteristics. On the one hand, these materials need to be printed in specific environments, such as printing environments filled with special gases, or some materials generate a large amount of fumes during printing. In this case, the traditional technology involves opening the printing chamber door to remove the printed part during printing and unloading. This process disrupts the printing environment inside the printing chamber, and unloading and printing cannot be performed simultaneously, reducing printing efficiency. To overcome the above problems, this invention fixes the main unit chamber 101 internally... A machine compartment barrier arm 102 is provided. A printing cavity 108 for printing is provided at the top of the main machine compartment 101, and a feeding cavity 103 for unloading is provided at the bottom of the main machine compartment 101. An auxiliary sealed roller compartment assembly 200 is rotatably installed inside the machine compartment barrier arm 102. A set of printing table assemblies 300 for printing and another set of printing table assemblies 300 for unloading are respectively provided at the top and bottom of the auxiliary sealed roller compartment assembly 200. The two sets of printing table assemblies 300 form a dual-station processing structure within the machine compartment assembly 100 that does not interfere with each other and can operate alternately. The two sets of printing stage assemblies 300 rotate and shift as the auxiliary sealed roller chamber assembly 200 rotates, precisely shifting their positions between the printing chamber 108 and the unloading chamber 103. In use, the two sets of printing stage assemblies 300 are positioned within the auxiliary sealed roller chamber assembly 200. The rotation of the auxiliary sealed roller chamber assembly 200 enables the two sets of printing stage assemblies 300 to shift their positions between the printing chamber 108 and the unloading chamber 103. During this process, the roller chamber 201 is rotatably positioned within the shifting rotation groove 104. In this way, during rotation... While repositioning, the printing environment inside the printing cavity 108 is not damaged, and the material unloading process inside the unloading cavity 103 is not affected. When the printing table assembly 300 is in use, the printing storage compartment 301 is lifted from the output slot 204 by the first hydraulic cylinder 208, and the printing table plate 305 is lifted by the second hydraulic cylinder 304. When the two sets of printing table assemblies 300 rotate and reposition, the printing table assembly 300 is stored in the auxiliary sealed roller compartment assembly 200 by the first hydraulic cylinder 208 to avoid affecting the subsequent rotation of the auxiliary sealed roller compartment assembly 200.

[0048] Based on the above, in order to solve the problem of timely and rapid sealing of the printing slot 204 when the printing table assembly 300 is lowered and stored in the auxiliary sealed roller chamber assembly 200, in order to avoid damaging the printing environment in the printing cavity 108, the present invention needs to seal the printing table slot 204 in a timely manner. The present invention is specifically implemented through the following technical solution: Specifically, the auxiliary sealed roller chamber assembly 200 of the present invention is provided with multiple sets of printing sealed protective plate assemblies 400 for sealing and protecting the printing table assembly 300. The T-shaped slider 403 on the arc-shaped sealed protective plate 401 slides in the T-shaped slide groove 203. The protective plate tooth arm 402 on the inner wall of the arc-shaped sealed protective plate 401 meshes with the side of the auxiliary gear 202 away from the bottom tooth arm 303. The printing storage chamber 301 is pulled down by the first hydraulic cylinder 208, so that the bottom tooth arm 303 meshes with one side of the auxiliary gear 202 for transmission. The other side of the auxiliary gear 202 is connected to the protective plate tooth arm. The engagement of 402 causes the arc-shaped sealing guard plate 401 to form a sealed structure at the printout slot 204. In actual use, when the first hydraulic cylinder 208 drives the print table assembly 300 to descend from the printout slot 204, the bottom gear arm 303 descends synchronously. At this time, the bottom gear arm 303 engages with one side of the auxiliary gear 202, and the other side of the auxiliary gear 202 engages with the guard plate gear arm 402 to drive the arc-shaped sealing guard plate 401 to rise and seal the printout slot 204. In this way, the print sealing guard plate assembly 400 can achieve follow-up sealing of the printout slot 204 when the print table assembly 300 moves down. In this way, while sealing the printout slot 204, the top of the print storage compartment 301 is also sealed at the same time. That is, the print sealing guard plate assembly 400 can seal and protect the printed parts in the print storage compartment 301.

[0049] Based on the above, in order to solve the problem of precise repositioning of the two sets of printing table assemblies 300 driven by the auxiliary sealed roller chamber assembly 200 between the printing chamber 108 and the unloading chamber 103, the rear end of the printer chamber assembly 100 of the present invention is provided with a rotary repositioning wheel assembly 500 for driving the two sets of printing table assemblies 300 to rotate and reposition. The drive spindle 206 is rotatably connected to the rear end chamber body of the main chamber 101 through a bearing. The drive end wheel 205 is located below the L-shaped arm 111. The rotary repositioning shaft 501 is set on the output shaft of the drive motor 110. The rotary repositioning notch wheel 504 is set below the drive end wheel 205. The rotary repositioning arm 502 is connected to the drive transverse groove 210 through the rotary repositioning rod 503. The drive end wheel 205 is rotated and shifted. In actual use, the drive motor 110 drives the rotating shifting notch wheel 504 to rotate one revolution. During one revolution, the rotating shifting arm 502 cooperates with the drive transverse groove 210 through the rotating shifting rod 503 to drive the drive end wheel 205 to rotate 180 degrees. At this time, the drive spindle 206 drives the roller chamber 201 to rotate 180 degrees in the shifting rotation groove 104. At this time, the two sets of printing table assemblies 300 on the auxiliary sealed roller chamber assembly 200 can achieve precise shifting between the printing chamber 108 and the unloading chamber 103. That is, the precise shifting operation is achieved by rotating the rotating shifting notch wheel 504 one revolution.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A large-scale high-precision non-metallic 3D printing device for improving printing efficiency, comprising a printer chamber assembly (100), wherein the printer chamber assembly (100) includes a main chamber (101), the top of the main chamber (101) is provided with a printing cavity (108) for printing, and the bottom of the main chamber (101) is provided with a feeding cavity (103) for feeding. Its features are: The main unit compartment (101) is fixedly provided with a compartment barrier arm (102). An auxiliary sealed roller compartment assembly (200) is rotatably provided inside the compartment barrier arm (102). The top and bottom ends of the auxiliary sealed roller compartment assembly (200) are respectively provided with a set of printing table assemblies (300) for printing and another set of printing table assemblies (300) for unloading. The two sets of printing table assemblies (300) form a dual-station processing table structure in the printer compartment assembly (100) that does not interfere with each other and can operate alternately. The rear end of the printer compartment assembly (100) is provided with a rotary displacement wheel assembly (500) for driving the two sets of printing table assemblies (300) to rotate and change positions. The auxiliary sealed roller compartment assembly (200) is provided with a printing sealed protective plate assembly (400) for sealing and protecting the printing table assembly (300) during the rotation and changing process.

2. The large-scale high-precision non-metallic 3D printing device for improving printing efficiency according to claim 1, characterized in that: The internal part of the nacelle barrier arm (102) is provided with a displacement rotation groove (104). An L-shaped boom (111) and a rear nacelle (109) are fixedly installed on the rear nacelle of the main nacelle (101). A drive motor (110) is fixedly installed on the L-shaped boom (111). A nacelle door (105) is fixedly installed on the front nacelle of the main nacelle (101). A sealed door (107) is provided at the top and bottom of the nacelle door (105). A handle (106) is provided on the sealed door (107).

3. The large-scale high-precision non-metallic 3D printing device for improving printing efficiency according to claim 2, characterized in that: The auxiliary sealed roller bin assembly (200) includes a roller bin (201). An inner support arm (207) is fixedly installed in the middle of the roller bin (201). A first hydraulic cylinder (208) is fixedly installed at the top and bottom of the inner support arm (207). A T-shaped groove (203) is opened on the center line of the inner wall of the roller bin (201). An auxiliary gear (202) is rotatably installed on one side of the inner wall of the roller bin (201). A drive spindle (206) is fixedly installed on the outer wall of the roller bin (201) away from the auxiliary gear (202). A drive end wheel (205) is fixedly installed at the end of the drive spindle (206) away from the roller bin (201). A drive transverse groove (210) and a drive arc groove (209) are opened on the drive end wheel (205). An exit groove (204) is opened at the top and bottom of the roller bin (201).

4. A large-scale, high-precision non-metallic 3D printing device for improving printing efficiency according to claim 3, characterized in that: The printing table assembly (300) includes a printing storage compartment (301), a second hydraulic cylinder (304) is fixedly installed inside the printing storage compartment (301), a printing table plate (305) is fixedly installed on the top of the second hydraulic cylinder (304), a bottom arm (302) is fixedly installed at the bottom of the printing storage compartment (301), and a bottom tooth arm (303) is fixedly installed at the bottom of the bottom arm (302).

5. A large-scale, high-precision non-metallic 3D printing device for improving printing efficiency according to claim 4, characterized in that: The printed sealed protective plate assembly (400) includes an arc-shaped sealed protective plate (401), the inner wall of the arc-shaped sealed protective plate (401) is fixedly provided with a protective plate tooth arm (402), and the outer wall of the arc-shaped sealed protective plate (401) is fixedly provided with a T-shaped slider (403). The rotary shift wheel assembly (500) includes a rotary shift shaft (501), one end of which is fixedly provided with a rotary shift notch wheel (504), and a rotary shift arm (502) is fixedly provided in the middle of the rotary shift shaft (501), and a rotary shift rod (503) is fixedly provided at the end of the rotary shift arm (502) away from the rotary shift shaft (501).

6. A large-scale, high-precision non-metallic 3D printing device for improving printing efficiency according to claim 5, characterized in that: The drive spindle (206) is rotatably connected to the rear end chamber of the main unit (101) via a bearing. The drive end wheel (205) is located below the L-shaped arm (111). The roller chamber (201) is rotatably set in the shifting rotation groove (104). The top and bottom of the machine chamber barrier arm (102) are provided with passage grooves that are adapted to the output groove (204). The passage grooves are aligned with the output groove (204) so ​​that the printing storage chamber (301) can pass through.

7. A large-scale, high-precision non-metallic 3D printing device for improving printing efficiency according to claim 6, characterized in that: The bottom of the printing storage compartment (301) is fixed to the top of the first hydraulic cylinder (208). The printing storage compartment (301) slides up and down in the roller compartment (201) and extends out through the table slot (204). The bottom gear arm (303) is set on the side of the auxiliary gear (202) near the first hydraulic cylinder (208). The bottom gear arm (303) meshes with the auxiliary gear (202). The second hydraulic cylinder (304) drives the printing table plate (305) to move back and forth in the printing storage compartment (301).

8. A large-scale, high-precision non-metallic 3D printing device for improving printing efficiency according to claim 7, characterized in that: The T-shaped slider (403) on the arc-shaped sealed protective plate (401) slides in the T-shaped groove (203). The protective plate tooth arm (402) on the inner wall of the arc-shaped sealed protective plate (401) meshes with the auxiliary gear (202) on the side away from the bottom tooth arm (303). The printing storage compartment (301) is pulled down by the first hydraulic cylinder (208), so that the bottom tooth arm (303) meshes with the auxiliary gear (202) on one side. The other side of the auxiliary gear (202) is moved by meshing with the protective plate tooth arm (402), so that the arc-shaped sealed protective plate (401) closes the outlet groove (204).

9. A large-scale, high-precision non-metallic 3D printing device for improving printing efficiency according to claim 8, characterized in that: The rotary shifting shaft (501) is mounted on the output shaft of the drive motor (110), the rotary shifting notch wheel (504) is mounted below the drive end wheel (205), and the rotary shifting arm (502) moves the drive end wheel (205) by means of the rotary shifting rod (503) and the drive transverse groove (210).

10. A large-scale, high-precision non-metallic 3D printing device for improving printing efficiency according to claim 9, characterized in that: As the auxiliary sealed roller assembly (200) rotates, the two sets of printing table assemblies (300) precisely rotate and switch positions between the printing chamber (108) and the unloading chamber (103), and seal the printing chamber (108) and the unloading chamber (103) through the sealed door (107).

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